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author | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
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committer | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
commit | 47d455dd55be855e4cc691c32f687f723d9247ee (patch) | |
tree | 52e236aaa2576bdb3840ebede26619692fed6d7d /ksvg/impl/libs | |
download | tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.tar.gz tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.zip |
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'ksvg/impl/libs')
52 files changed, 12684 insertions, 0 deletions
diff --git a/ksvg/impl/libs/Makefile.am b/ksvg/impl/libs/Makefile.am new file mode 100644 index 00000000..76f41e24 --- /dev/null +++ b/ksvg/impl/libs/Makefile.am @@ -0,0 +1 @@ +SUBDIRS = xrgbrender art_support libtext2path diff --git a/ksvg/impl/libs/art_support/Makefile.am b/ksvg/impl/libs/art_support/Makefile.am new file mode 100644 index 00000000..4bf00dd7 --- /dev/null +++ b/ksvg/impl/libs/art_support/Makefile.am @@ -0,0 +1,4 @@ +noinst_LTLIBRARIES = libksvgart.la +libksvgart_la_SOURCES = art_render_misc.c art_rgba_svp.c art_misc.c + +INCLUDES = $(LIBART_CFLAGS) $(all_includes) diff --git a/ksvg/impl/libs/art_support/art_misc.c b/ksvg/impl/libs/art_support/art_misc.c new file mode 100644 index 00000000..69b45306 --- /dev/null +++ b/ksvg/impl/libs/art_support/art_misc.c @@ -0,0 +1,1841 @@ +#include <libart_lgpl/art_vpath.h> +#include <libart_lgpl/art_bpath.h> +#include <libart_lgpl/art_misc.h> +#include <libart_lgpl/art_affine.h> +#include <libart_lgpl/art_svp_render_aa.h> + +#include "art_misc.h" + +extern double ceil(double x); +extern double floor(double x); + +/** + * art_vpath_render_bez: Render a bezier segment into the vpath. + * @p_vpath: Where the pointer to the #ArtVpath structure is stored. + * @pn_points: Pointer to the number of points in *@p_vpath. + * @pn_points_max: Pointer to the number of points allocated. + * @x0: X coordinate of starting bezier point. + * @y0: Y coordinate of starting bezier point. + * @x1: X coordinate of first bezier control point. + * @y1: Y coordinate of first bezier control point. + * @x2: X coordinate of second bezier control point. + * @y2: Y coordinate of second bezier control point. + * @x3: X coordinate of ending bezier point. + * @y3: Y coordinate of ending bezier point. + * @flatness: Flatness control. + * + * Renders a bezier segment into the vector path, reallocating and + * updating *@p_vpath and *@pn_vpath_max as necessary. *@pn_vpath is + * incremented by the number of vector points added. + * + * This step includes (@x0, @y0) but not (@x3, @y3). + * + * The @flatness argument guides the amount of subdivision. The Adobe + * PostScript reference manual defines flatness as the maximum + * deviation between the any point on the vpath approximation and the + * corresponding point on the "true" curve, and we follow this + * definition here. A value of 0.25 should ensure high quality for aa + * rendering. + **/ + void +ksvg_art_vpath_render_bez (ArtVpath **p_vpath, int *pn, int *pn_max, + double x0, double y0, + double x1, double y1, + double x2, double y2, + double x3, double y3, + double flatness) +{ + double x3_0, y3_0; + double z3_0_dot; + double z1_dot, z2_dot; + double z1_perp, z2_perp; + double max_perp_sq; + + double x_m, y_m; + double xa1, ya1; + double xa2, ya2; + double xb1, yb1; + double xb2, yb2; + + /* It's possible to optimize this routine a fair amount. + + First, once the _dot conditions are met, they will also be met in + all further subdivisions. So we might recurse to a different + routine that only checks the _perp conditions. + + Second, the distance _should_ decrease according to fairly + predictable rules (a factor of 4 with each subdivision). So it might + be possible to note that the distance is within a factor of 4 of + acceptable, and subdivide once. But proving this might be hard. + + Third, at the last subdivision, x_m and y_m can be computed more + expeditiously (as in the routine above). + + Finally, if we were able to subdivide by, say 2 or 3, this would + allow considerably finer-grain control, i.e. fewer points for the + same flatness tolerance. This would speed things up downstream. + + In any case, this routine is unlikely to be the bottleneck. It's + just that I have this undying quest for more speed... + +*/ + + x3_0 = x3 - x0; + y3_0 = y3 - y0; + + /* z3_0_dot is dist z0-z3 squared */ + z3_0_dot = x3_0 * x3_0 + y3_0 * y3_0; + + /* todo: this test is far from satisfactory. */ + if (z3_0_dot < 0.001) + goto nosubdivide; + + /* we can avoid subdivision if: + + z1 has distance no more than flatness from the z0-z3 line + + z1 is no more z0'ward than flatness past z0-z3 + + z1 is more z0'ward than z3'ward on the line traversing z0-z3 + + and correspondingly for z2 */ + + /* perp is distance from line, multiplied by dist z0-z3 */ + max_perp_sq = flatness * flatness * z3_0_dot; + z1_perp = (y1 - y0) * x3_0 - (x1 - x0) * y3_0; + if (z1_perp * z1_perp > max_perp_sq) + goto subdivide; + + z2_perp = (y3 - y2) * x3_0 - (x3 - x2) * y3_0; + if (z2_perp * z2_perp > max_perp_sq) + goto subdivide; + + z1_dot = (x1 - x0) * x3_0 + (y1 - y0) * y3_0; + if (z1_dot < 0 && z1_dot * z1_dot > max_perp_sq) + goto subdivide; + + z2_dot = (x3 - x2) * x3_0 + (y3 - y2) * y3_0; + if (z2_dot < 0 && z2_dot * z2_dot > max_perp_sq) + goto subdivide; + + if (z1_dot + z1_dot > z3_0_dot) + goto subdivide; + + if (z2_dot + z2_dot > z3_0_dot) + goto subdivide; + +nosubdivide: + /* don't subdivide */ + art_vpath_add_point (p_vpath, pn, pn_max, + ART_LINETO, x3, y3); + return; + +subdivide: + + xa1 = (x0 + x1) * 0.5; + ya1 = (y0 + y1) * 0.5; + xa2 = (x0 + 2 * x1 + x2) * 0.25; + ya2 = (y0 + 2 * y1 + y2) * 0.25; + xb1 = (x1 + 2 * x2 + x3) * 0.25; + yb1 = (y1 + 2 * y2 + y3) * 0.25; + xb2 = (x2 + x3) * 0.5; + yb2 = (y2 + y3) * 0.5; + x_m = (xa2 + xb1) * 0.5; + y_m = (ya2 + yb1) * 0.5; +#ifdef VERBOSE + printf ("%g,%g %g,%g %g,%g %g,%g\n", xa1, ya1, xa2, ya2, + xb1, yb1, xb2, yb2); +#endif + ksvg_art_vpath_render_bez (p_vpath, pn, pn_max, + x0, y0, xa1, ya1, xa2, ya2, x_m, y_m, flatness); + ksvg_art_vpath_render_bez (p_vpath, pn, pn_max, + x_m, y_m, xb1, yb1, xb2, yb2, x3, y3, flatness); +} + +#define RENDER_LEVEL 4 +#define RENDER_SIZE (1 << (RENDER_LEVEL)) + +/** + * ksvg_art_bez_path_to_vec: Create vpath from bezier path. + * @bez: Bezier path. + * @flatness: Flatness control. + * + * Creates a vector path closely approximating the bezier path defined by + * @bez. The @flatness argument controls the amount of subdivision. In + * general, the resulting vpath deviates by at most @flatness pixels + * from the "ideal" path described by @bez. + * + * Return value: Newly allocated vpath. + **/ + ArtVpath * +ksvg_art_bez_path_to_vec(const ArtBpath *bez, double flatness) +{ + ArtVpath *vec; + int vec_n, vec_n_max; + int bez_index; + double x, y; + + vec_n = 0; + vec_n_max = RENDER_SIZE; + vec = art_new (ArtVpath, vec_n_max); + + /* Initialization is unnecessary because of the precondition that the + bezier path does not begin with LINETO or CURVETO, but is here + to make the code warning-free. */ + x = 0; + y = 0; + + bez_index = 0; + do + { +#ifdef VERBOSE + printf ("%s %g %g\n", + bez[bez_index].code == ART_CURVETO ? "curveto" : + bez[bez_index].code == ART_LINETO ? "lineto" : + bez[bez_index].code == ART_MOVETO ? "moveto" : + bez[bez_index].code == ART_MOVETO_OPEN ? "moveto-open" : + "end", bez[bez_index].x3, bez[bez_index].y3); +#endif + /* make sure space for at least one more code */ + if (vec_n >= vec_n_max) + art_expand (vec, ArtVpath, vec_n_max); + switch (bez[bez_index].code) + { + case ART_MOVETO_OPEN: + case ART_MOVETO: + case ART_LINETO: + x = bez[bez_index].x3; + y = bez[bez_index].y3; + vec[vec_n].code = bez[bez_index].code; + vec[vec_n].x = x; + vec[vec_n].y = y; + vec_n++; + break; + case ART_END: + vec[vec_n].code = ART_END; + vec[vec_n].x = 0; + vec[vec_n].y = 0; + vec_n++; + break; + case ART_END2: + vec[vec_n].code = (ArtPathcode)ART_END2; + vec[vec_n].x = bez[bez_index].x3; + vec[vec_n].y = bez[bez_index].y3; + vec_n++; + break; + case ART_CURVETO: +#ifdef VERBOSE + printf ("%g,%g %g,%g %g,%g %g,%g\n", x, y, + bez[bez_index].x1, bez[bez_index].y1, + bez[bez_index].x2, bez[bez_index].y2, + bez[bez_index].x3, bez[bez_index].y3); +#endif + ksvg_art_vpath_render_bez (&vec, &vec_n, &vec_n_max, + x, y, + bez[bez_index].x1, bez[bez_index].y1, + bez[bez_index].x2, bez[bez_index].y2, + bez[bez_index].x3, bez[bez_index].y3, + flatness); + x = bez[bez_index].x3; + y = bez[bez_index].y3; + break; + } + } + while (bez[bez_index++].code != ART_END); + return vec; +} + +/* Private functions for the rgb affine image compositors - primarily, +* the determination of runs, eliminating the need for source image +* bbox calculation in the inner loop. */ + +/* Determine a "run", such that the inverse affine of all pixels from +* (x0, y) inclusive to (x1, y) exclusive fit within the bounds +* of the source image. +* +* Initial values of x0, x1, and result values stored in first two +* pointer arguments. +* */ + +#define EPSILON 1e-6 + + void ksvg_art_rgb_affine_run (int *p_x0, int *p_x1, int y, + int src_width, int src_height, + const double affine[6]) +{ + int x0, x1; + double z; + double x_intercept; + int xi; + + x0 = *p_x0; + x1 = *p_x1; + + /* do left and right edges */ + if (affine[0] > EPSILON) + { + z = affine[2] * (y + 0.5) + affine[4]; + x_intercept = -z / affine[0]; + xi = ceil (x_intercept + EPSILON - 0.5); + if (xi > x0) + x0 = xi; + x_intercept = (-z + src_width) / affine[0]; + xi = ceil (x_intercept - EPSILON - 0.5); + if (xi < x1) + x1 = xi; + } + else if (affine[0] < -EPSILON) + { + z = affine[2] * (y + 0.5) + affine[4]; + x_intercept = (-z + src_width) / affine[0]; + xi = ceil (x_intercept + EPSILON - 0.5); + if (xi > x0) + x0 = xi; + x_intercept = -z / affine[0]; + xi = ceil (x_intercept - EPSILON - 0.5); + if (xi < x1) + x1 = xi; + } + else + { + z = affine[2] * (y + 0.5) + affine[4]; + if (z < 0 || z >= src_width) + { + *p_x1 = *p_x0; + return; + } + } + /* do top and bottom edges */ + if (affine[1] > EPSILON) + { + z = affine[3] * (y + 0.5) + affine[5]; + x_intercept = -z / affine[1]; + xi = ceil (x_intercept + EPSILON - 0.5); + if (xi > x0) + x0 = xi; + x_intercept = (-z + src_height) / affine[1]; + xi = ceil (x_intercept - EPSILON - 0.5); + if (xi < x1) + x1 = xi; + } + else if (affine[1] < -EPSILON) + { + z = affine[3] * (y + 0.5) + affine[5]; + x_intercept = (-z + src_height) / affine[1]; + xi = ceil (x_intercept + EPSILON - 0.5); + if (xi > x0) + x0 = xi; + x_intercept = -z / affine[1]; + xi = ceil (x_intercept - EPSILON - 0.5); + if (xi < x1) + x1 = xi; + } + else + { + z = affine[3] * (y + 0.5) + affine[5]; + if (z < 0 || z >= src_height) + { + *p_x1 = *p_x0; + return; + } + } + + *p_x0 = x0; + *p_x1 = x1; +} + +/** + * ksvg_art_rgb_affine: Affine transform source RGB image and composite. + * @dst: Destination image RGB buffer. + * @x0: Left coordinate of destination rectangle. + * @y0: Top coordinate of destination rectangle. + * @x1: Right coordinate of destination rectangle. + * @y1: Bottom coordinate of destination rectangle. + * @dst_rowstride: Rowstride of @dst buffer. + * @src: Source image RGB buffer. + * @src_width: Width of source image. + * @src_height: Height of source image. + * @src_rowstride: Rowstride of @src buffer. + * @affine: Affine transform. + * @level: Filter level. + * @alphagamma: #ArtAlphaGamma for gamma-correcting the compositing. + * @alpha: Alpha, range 0..256. + * + * Affine transform the source image stored in @src, compositing over + * the area of destination image @dst specified by the rectangle + * (@x0, @y0) - (@x1, @y1). As usual in libart, the left and top edges + * of this rectangle are included, and the right and bottom edges are + * excluded. + * + * The @alphagamma parameter specifies that the alpha compositing be done + * in a gamma-corrected color space. Since the source image is opaque RGB, + * this argument only affects the edges. In the current implementation, + * it is ignored. + * + * The @level parameter specifies the speed/quality tradeoff of the + * image interpolation. Currently, only ART_FILTER_NEAREST is + * implemented. + * + * KSVG additions : we have changed this function to support an alpha level as well. +* also we made sure compositing an rgba image over an rgb buffer works. +**/ + void ksvg_art_rgb_affine (art_u8 *dst, int x0, int y0, int x1, int y1, int dst_rowstride, + const art_u8 *src, + int src_width, int src_height, int src_rowstride, + const double affine[6], + ArtFilterLevel level, + ArtAlphaGamma *alphagamma, + int alpha) +{ + /* Note: this is a slow implementation, and is missing all filter + levels other than NEAREST. It is here for clarity of presentation + and to establish the interface. */ + int x, y; + double inv[6]; + art_u8 *dst_p, *dst_linestart; + const art_u8 *src_p; + ArtPoint pt, src_pt; + int src_x, src_y; + int run_x0, run_x1; + + dst_linestart = dst; + art_affine_invert (inv, affine); + + if(alpha == 255) + for (y = y0; y < y1; y++) + { + pt.y = y + 0.5; + run_x0 = x0; + run_x1 = x1; + ksvg_art_rgb_affine_run (&run_x0, &run_x1, y, src_width, src_height, + inv); + dst_p = dst_linestart + (run_x0 - x0) * 3; + for (x = run_x0; x < run_x1; x++) + { + pt.x = x + 0.5; + art_affine_point (&src_pt, &pt, inv); + src_x = floor (src_pt.x); + src_y = floor (src_pt.y); + src_p = src + (src_y * src_rowstride) + src_x * 4; + dst_p[0] = dst_p[0] + (((src_p[2] - dst_p[0]) * src_p[3] + 0x80) >> 8); + dst_p[1] = dst_p[1] + (((src_p[1] - dst_p[1]) * src_p[3] + 0x80) >> 8); + dst_p[2] = dst_p[2] + (((src_p[0] - dst_p[2]) * src_p[3] + 0x80) >> 8); + dst_p += 3; + } + dst_linestart += dst_rowstride; + } + else + for (y = y0; y < y1; y++) + { + pt.y = y + 0.5; + run_x0 = x0; + run_x1 = x1; + ksvg_art_rgb_affine_run (&run_x0, &run_x1, y, src_width, src_height, + inv); + dst_p = dst_linestart + (run_x0 - x0) * 3; + for (x = run_x0; x < run_x1; x++) + { + pt.x = x + 0.5; + art_affine_point (&src_pt, &pt, inv); + src_x = floor (src_pt.x); + src_y = floor (src_pt.y); + src_p = src + (src_y * src_rowstride) + src_x * 4; + dst_p[0] = dst_p[0] + (((src_p[2] - dst_p[0]) * alpha + 0x80) >> 8); + dst_p[1] = dst_p[1] + (((src_p[1] - dst_p[1]) * alpha + 0x80) >> 8); + dst_p[2] = dst_p[2] + (((src_p[0] - dst_p[2]) * alpha + 0x80) >> 8); + dst_p += 3; + } + dst_linestart += dst_rowstride; + } +} + + +typedef struct _ksvgArtRgbAffineClipAlphaData ksvgArtRgbAffineClipAlphaData; + +struct _ksvgArtRgbAffineClipAlphaData +{ + int alphatab[256]; + art_u8 alpha; + art_u8 *dst; + int dst_rowstride; + int x0, x1; + double inv[6]; + const art_u8 *src; + int src_width; + int src_height; + int src_rowstride; + const art_u8 *mask; + int y0; +}; + +static +void ksvg_art_rgb_affine_clip_run(art_u8 *dst_p, int x0, int x1, int y, const double inv[6], + int alpha, const art_u8 *src, int src_rowstride, int src_width, int src_height) +{ + const art_u8 *src_p; + ArtPoint pt, src_pt; + int src_x, src_y; + int x; + + if(alpha > 255) + alpha = 255; + + pt.y = y; + + for(x = x0; x < x1; x++) + { + pt.x = x; + + art_affine_point(&src_pt, &pt, inv); + + src_x = (int)(src_pt.x); + src_y = (int)(src_pt.y); + + if(src_x >= 0 && src_x < src_width && src_y >= 0 && src_y < src_height) + { + int s; + int d; + int tmp; + int srcAlpha; + + src_p = src + (src_y * src_rowstride) + src_x * 4; + + srcAlpha = alpha * src_p[3] + 0x80; + srcAlpha = (srcAlpha + (srcAlpha >> 8)) >> 8; + + d = *dst_p; + s = src_p[2]; + + tmp = srcAlpha * (s - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + + d = *dst_p; + s = src_p[1]; + + tmp = srcAlpha * (s - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + + d = *dst_p; + s = src_p[0]; + + tmp = srcAlpha * (s - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + } + else + dst_p += 3; + } +} + +static void +ksvg_art_rgb_affine_clip_callback (void *callback_data, int y, + int start, ArtSVPRenderAAStep *steps, int n_steps) +{ + ksvgArtRgbAffineClipAlphaData *data = (ksvgArtRgbAffineClipAlphaData *)callback_data; + art_u8 *linebuf; + int run_x0, run_x1; + art_u32 running_sum = start; + int x0, x1; + int k; + int *alphatab; + int alpha; + + linebuf = data->dst; + x0 = data->x0; + x1 = data->x1; + + alphatab = data->alphatab; + + if(n_steps > 0) + { + run_x1 = steps[0].x; + if(run_x1 > x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_affine_clip_run(linebuf, x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + for(k = 0; k < n_steps - 1; k++) + { + running_sum += steps[k].delta; + run_x0 = run_x1; + run_x1 = steps[k + 1].x; + if(run_x1 > run_x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_affine_clip_run(linebuf + (run_x0 - x0) * 3, run_x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + running_sum += steps[k].delta; + if(x1 > run_x1) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_affine_clip_run(linebuf + (run_x1 - x0) * 3, run_x1, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + else + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_affine_clip_run(linebuf, x0, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + data->dst += data->dst_rowstride; +} + +static +void ksvg_art_rgb_affine_clip_mask_run(art_u8 *dst_p, const art_u8 *mask, int x0, int x1, int y, const double inv[6], + int alpha, const art_u8 *src, int src_rowstride, int src_width, int src_height) +{ + const art_u8 *src_p; + ArtPoint pt, src_pt; + int src_x, src_y; + int x; + + if(alpha > 255) + alpha = 255; + + pt.y = y; + + for(x = x0; x < x1; x++) + { + pt.x = x; + + art_affine_point(&src_pt, &pt, inv); + + src_x = (int)(src_pt.x); + src_y = (int)(src_pt.y); + + if(src_x >= 0 && src_x < src_width && src_y >= 0 && src_y < src_height) + { + int s; + int d; + int tmp; + int srcAlpha; + + src_p = src + (src_y * src_rowstride) + src_x * 4; + + srcAlpha = alpha * src_p[3] + 0x80; + srcAlpha = (srcAlpha + (srcAlpha >> 8)) >> 8; + + srcAlpha = (srcAlpha * *mask++) + 0x80; + srcAlpha = (srcAlpha + (srcAlpha >> 8)) >> 8; + + d = *dst_p; + s = src_p[2]; + + tmp = srcAlpha * (s - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + + d = *dst_p; + s = src_p[1]; + + tmp = srcAlpha * (s - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + + d = *dst_p; + s = src_p[0]; + + tmp = srcAlpha * (s - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + } + else + { + dst_p += 3; + mask++; + } + } +} + +static void +ksvg_art_rgb_affine_clip_mask_callback (void *callback_data, int y, + int start, ArtSVPRenderAAStep *steps, int n_steps) +{ + ksvgArtRgbAffineClipAlphaData *data = (ksvgArtRgbAffineClipAlphaData *)callback_data; + art_u8 *linebuf; + int run_x0, run_x1; + art_u32 running_sum = start; + int x0, x1; + int k; + int *alphatab; + int alpha; + const art_u8 *maskbuf; + + linebuf = data->dst; + x0 = data->x0; + x1 = data->x1; + + alphatab = data->alphatab; + maskbuf = data->mask + (y - data->y0) * (x1 - x0); + + if(n_steps > 0) + { + run_x1 = steps[0].x; + if(run_x1 > x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_affine_clip_mask_run(linebuf, maskbuf, x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + for(k = 0; k < n_steps - 1; k++) + { + running_sum += steps[k].delta; + run_x0 = run_x1; + run_x1 = steps[k + 1].x; + if(run_x1 > run_x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_affine_clip_mask_run(linebuf + (run_x0 - x0) * 3, maskbuf + (run_x0 - x0), run_x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + running_sum += steps[k].delta; + if(x1 > run_x1) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_affine_clip_mask_run(linebuf + (run_x1 - x0) * 3, maskbuf + (run_x1 - x0), run_x1, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + else + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_affine_clip_mask_run(linebuf, maskbuf, x0, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + data->dst += data->dst_rowstride; +} + +static +void ksvg_art_rgba_affine_clip_run(art_u8 *dst_p, int x0, int x1, int y, const double inv[6], + int alpha, const art_u8 *src, int src_rowstride, int src_width, int src_height) +{ + const art_u8 *src_p; + ArtPoint pt, src_pt; + int src_x, src_y; + int x; + + if(alpha > 255) + alpha = 255; + + pt.y = y; + + for(x = x0; x < x1; x++) + { + pt.x = x; + + art_affine_point(&src_pt, &pt, inv); + + src_x = (int)(src_pt.x); + src_y = (int)(src_pt.y); + + if(src_x >= 0 && src_x < src_width && src_y >= 0 && src_y < src_height) + { + int s; + int d; + int tmp; + int srcAlpha; + + src_p = src + (src_y * src_rowstride) + src_x * 4; + + srcAlpha = alpha * src_p[3] + 0x80; + srcAlpha = (srcAlpha + (srcAlpha >> 8)) >> 8; + + d = *dst_p; + s = src_p[2]; + + tmp = srcAlpha * (s - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + + d = *dst_p; + s = src_p[1]; + + tmp = srcAlpha * (s - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + + d = *dst_p; + s = src_p[0]; + + tmp = srcAlpha * (s - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + + d = *dst_p; + + tmp = srcAlpha * (255 - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + } + else + dst_p += 4; + } +} + +static void +ksvg_art_rgba_affine_clip_callback (void *callback_data, int y, + int start, ArtSVPRenderAAStep *steps, int n_steps) +{ + ksvgArtRgbAffineClipAlphaData *data = (ksvgArtRgbAffineClipAlphaData *)callback_data; + art_u8 *linebuf; + int run_x0, run_x1; + art_u32 running_sum = start; + int x0, x1; + int k; + int *alphatab; + int alpha; + + linebuf = data->dst; + x0 = data->x0; + x1 = data->x1; + + alphatab = data->alphatab; + + if(n_steps > 0) + { + run_x1 = steps[0].x; + if(run_x1 > x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_affine_clip_run(linebuf, x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + for(k = 0; k < n_steps - 1; k++) + { + running_sum += steps[k].delta; + run_x0 = run_x1; + run_x1 = steps[k + 1].x; + if(run_x1 > run_x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_affine_clip_run(linebuf + (run_x0 - x0) * 4, run_x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + running_sum += steps[k].delta; + if(x1 > run_x1) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_affine_clip_run(linebuf + (run_x1 - x0) * 4, run_x1, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + else + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_affine_clip_run(linebuf, x0, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + data->dst += data->dst_rowstride; +} + +static +void ksvg_art_rgba_affine_clip_mask_run(art_u8 *dst_p, const art_u8 *mask, int x0, int x1, int y, const double inv[6], + int alpha, const art_u8 *src, int src_rowstride, int src_width, int src_height) +{ + const art_u8 *src_p; + ArtPoint pt, src_pt; + int src_x, src_y; + int x; + + if(alpha > 255) + alpha = 255; + + pt.y = y; + + for(x = x0; x < x1; x++) + { + pt.x = x; + + art_affine_point(&src_pt, &pt, inv); + + src_x = (int)(src_pt.x); + src_y = (int)(src_pt.y); + + if(src_x >= 0 && src_x < src_width && src_y >= 0 && src_y < src_height) + { + int s; + int d; + int tmp; + int srcAlpha; + + src_p = src + (src_y * src_rowstride) + src_x * 4; + + srcAlpha = alpha * src_p[3] + 0x80; + srcAlpha = (srcAlpha + (srcAlpha >> 8)) >> 8; + + srcAlpha = (srcAlpha * *mask++) + 0x80; + srcAlpha = (srcAlpha + (srcAlpha >> 8)) >> 8; + + d = *dst_p; + s = src_p[2]; + + tmp = srcAlpha * (s - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + + d = *dst_p; + s = src_p[1]; + + tmp = srcAlpha * (s - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + + d = *dst_p; + s = src_p[0]; + + tmp = srcAlpha * (s - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + + d = *dst_p; + + tmp = srcAlpha * (255 - d) + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + *dst_p++ = d + tmp; + } + else + { + dst_p += 4; + mask++; + } + } +} + +static void +ksvg_art_rgba_affine_clip_mask_callback (void *callback_data, int y, + int start, ArtSVPRenderAAStep *steps, int n_steps) +{ + ksvgArtRgbAffineClipAlphaData *data = (ksvgArtRgbAffineClipAlphaData *)callback_data; + art_u8 *linebuf; + int run_x0, run_x1; + art_u32 running_sum = start; + int x0, x1; + int k; + int *alphatab; + int alpha; + const art_u8 *maskbuf; + + linebuf = data->dst; + x0 = data->x0; + x1 = data->x1; + + alphatab = data->alphatab; + maskbuf = data->mask + (y - data->y0) * (x1 - x0); + + if(n_steps > 0) + { + run_x1 = steps[0].x; + if(run_x1 > x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_affine_clip_mask_run(linebuf, maskbuf, x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + for(k = 0; k < n_steps - 1; k++) + { + running_sum += steps[k].delta; + run_x0 = run_x1; + run_x1 = steps[k + 1].x; + if(run_x1 > run_x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_affine_clip_mask_run(linebuf + (run_x0 - x0) * 4, maskbuf + (run_x0 - x0), run_x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + running_sum += steps[k].delta; + if(x1 > run_x1) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_affine_clip_mask_run(linebuf + (run_x1 - x0) * 4, maskbuf + (run_x1 - x0), run_x1, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + else + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_affine_clip_mask_run(linebuf, maskbuf, x0, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + data->dst += data->dst_rowstride; +} + +/** + * ksvg_art_rgb_affine_clip: Affine transform source RGB image and composite, with clipping path. + * @svp: Clipping path. + * @dst: Destination image RGB buffer. + * @x0: Left coordinate of destination rectangle. + * @y0: Top coordinate of destination rectangle. + * @x1: Right coordinate of destination rectangle. + * @y1: Bottom coordinate of destination rectangle. + * @dst_rowstride: Rowstride of @dst buffer. + * @src: Source image RGB buffer. + * @src_width: Width of source image. + * @src_height: Height of source image. + * @src_rowstride: Rowstride of @src buffer. + * @affine: Affine transform. + * @level: Filter level. + * @alphagamma: #ArtAlphaGamma for gamma-correcting the compositing. + * @alpha: Alpha, range 0..256. + * + * Affine transform the source image stored in @src, compositing over + * the area of destination image @dst specified by the rectangle + * (@x0, @y0) - (@x1, @y1). As usual in libart, the left and top edges + * of this rectangle are included, and the right and bottom edges are + * excluded. + * + * The @alphagamma parameter specifies that the alpha compositing be done + * in a gamma-corrected color space. Since the source image is opaque RGB, + * this argument only affects the edges. In the current implementation, + * it is ignored. + * + * The @level parameter specifies the speed/quality tradeoff of the + * image interpolation. Currently, only ART_FILTER_NEAREST is + * implemented. + * + * KSVG additions : we have changed this function to support an alpha level as well. +* also we made sure compositing an rgba image over an rgb buffer works. +**/ +void ksvg_art_rgb_affine_clip(const ArtSVP *svp, art_u8 *dst, int x0, int y0, int x1, int y1, int dst_rowstride, int dst_channels, + const art_u8 *src, + int src_width, int src_height, int src_rowstride, + const double affine[6], + int alpha, const art_u8 *mask) +{ + ksvgArtRgbAffineClipAlphaData data; + int i; + int a, da; + + data.alpha = alpha; + + a = 0x8000; + da = (alpha * 66051 + 0x80) >> 8; /* 66051 equals 2 ^ 32 / (255 * 255) */ + + for(i = 0; i < 256; i++) + { + data.alphatab[i] = a >> 16; + a += da; + } + + data.dst = dst; + data.dst_rowstride = dst_rowstride; + data.x0 = x0; + data.x1 = x1; + data.y0 = y0; + data.mask = mask; + + art_affine_invert(data.inv, affine); + + data.src = src; + data.src_width = src_width; + data.src_height = src_height; + data.src_rowstride = src_rowstride; + + if(dst_channels == 3) + { + if(mask) + art_svp_render_aa(svp, x0, y0, x1, y1, ksvg_art_rgb_affine_clip_mask_callback, &data); + else + art_svp_render_aa(svp, x0, y0, x1, y1, ksvg_art_rgb_affine_clip_callback, &data); + } + else + { + if(mask) + art_svp_render_aa(svp, x0, y0, x1, y1, ksvg_art_rgba_affine_clip_mask_callback, &data); + else + art_svp_render_aa(svp, x0, y0, x1, y1, ksvg_art_rgba_affine_clip_callback, &data); + } +} + + +static +void ksvg_art_rgb_texture_run(art_u8 *dst_p, int x0, int x1, int y, const double inv[6], + int alpha, const art_u8 *src, int src_rowstride, int src_width, int src_height) +{ + const art_u8 *src_p; + ArtPoint pt, src_pt; + int src_x, src_y; + int x; + int srcAlpha; + + if(alpha > 255) + alpha = 255; + + /* TODO: optimise and filter? */ + pt.y = y + 0.5; + + for(x = x0; x < x1; x++) + { + int s; + int d; + int tmp; + int tmp2; + + pt.x = x + 0.5; + + art_affine_point(&src_pt, &pt, inv); + + src_x = (int)floor(src_pt.x); + src_y = (int)floor(src_pt.y); + + if(src_x < 0) + { + /* Can't assume % behaviour with negative values */ + src_x += ((src_x / -src_width) + 1) * src_width; + } + + if(src_y < 0) + { + src_y += ((src_y / -src_height) + 1) * src_height; + } + + src_x %= src_width; + src_y %= src_height; + + src_p = src + (src_y * src_rowstride) + src_x * 4; + + /* Pattern source is in RGBA format, premultiplied. + * alpha represents fill/stroke/group opacity. + * + * Multiply source alpha by 'alpha' then composite over. + * For each channel, d = d + alpha * (s - srcAlpha * d). + */ + + srcAlpha = src_p[3]; + + d = *dst_p; + s = *src_p++; + + tmp = srcAlpha * d + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = alpha * (s - tmp) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + + d = *dst_p; + s = *src_p++; + + tmp = srcAlpha * d + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = alpha * (s - tmp) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + + d = *dst_p; + s = *src_p++; + + tmp = srcAlpha * d + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = alpha * (s - tmp) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + } +} + +static void +ksvg_art_rgb_texture_callback (void *callback_data, int y, + int start, ArtSVPRenderAAStep *steps, int n_steps) +{ + ksvgArtRgbAffineClipAlphaData *data = (ksvgArtRgbAffineClipAlphaData *)callback_data; + art_u8 *linebuf; + int run_x0, run_x1; + art_u32 running_sum = start; + int x0, x1; + int k; + int *alphatab; + int alpha; + + linebuf = data->dst; + x0 = data->x0; + x1 = data->x1; + + alphatab = data->alphatab; + + if(n_steps > 0) + { + run_x1 = steps[0].x; + if(run_x1 > x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_texture_run(linebuf, x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + for(k = 0; k < n_steps - 1; k++) + { + running_sum += steps[k].delta; + run_x0 = run_x1; + run_x1 = steps[k + 1].x; + if(run_x1 > run_x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_texture_run(linebuf + (run_x0 - x0) * 3, run_x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + running_sum += steps[k].delta; + if(x1 > run_x1) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_texture_run(linebuf + (run_x1 - x0) * 3, run_x1, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + else + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_texture_run(linebuf, x0, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + data->dst += data->dst_rowstride; +} + +static +void ksvg_art_rgb_texture_mask_run(art_u8 *dst_p, const art_u8 *mask, int x0, int x1, int y, const double inv[6], + int alpha, const art_u8 *src, int src_rowstride, int src_width, int src_height) +{ + const art_u8 *src_p; + ArtPoint pt, src_pt; + int src_x, src_y; + int x; + int srcAlpha; + + if(alpha > 255) + alpha = 255; + + /* TODO: optimise and filter? */ + pt.y = y + 0.5; + + for(x = x0; x < x1; x++) + { + int s; + int d; + int am; + int tmp; + int tmp2; + + pt.x = x + 0.5; + + art_affine_point(&src_pt, &pt, inv); + + src_x = (int)floor(src_pt.x); + src_y = (int)floor(src_pt.y); + + if(src_x < 0) + { + /* Can't assume % behaviour with negative values */ + src_x += ((src_x / -src_width) + 1) * src_width; + } + + if(src_y < 0) + { + src_y += ((src_y / -src_height) + 1) * src_height; + } + + src_x %= src_width; + src_y %= src_height; + + src_p = src + (src_y * src_rowstride) + src_x * 4; + + /* Pattern source is in RGBA format, premultiplied. + * alpha represents fill/stroke/group opacity. + * + * Multiply source alpha by 'alpha' and mask value then composite over. + * For each channel, d = d + alpha * mask * (s - srcAlpha * d). + */ + + am = (alpha * *mask++) + 0x80; + am = (am + (am >> 8)) >> 8; + + srcAlpha = src_p[3]; + + d = *dst_p; + s = *src_p++; + + tmp = srcAlpha * d + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = am * (s - tmp) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + + d = *dst_p; + s = *src_p++; + + tmp = srcAlpha * d + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = am * (s - tmp) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + + d = *dst_p; + s = *src_p++; + + tmp = srcAlpha * d + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = am * (s - tmp) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + } +} + +static void +ksvg_art_rgb_texture_mask_callback (void *callback_data, int y, + int start, ArtSVPRenderAAStep *steps, int n_steps) +{ + ksvgArtRgbAffineClipAlphaData *data = (ksvgArtRgbAffineClipAlphaData *)callback_data; + art_u8 *linebuf; + int run_x0, run_x1; + art_u32 running_sum = start; + int x0, x1; + int k; + int *alphatab; + int alpha; + const art_u8 *maskbuf; + + linebuf = data->dst; + x0 = data->x0; + x1 = data->x1; + + alphatab = data->alphatab; + + maskbuf = data->mask + (y - data->y0) * (x1 - x0); + + if(n_steps > 0) + { + run_x1 = steps[0].x; + if(run_x1 > x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_texture_mask_run(linebuf, maskbuf, x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + for(k = 0; k < n_steps - 1; k++) + { + running_sum += steps[k].delta; + run_x0 = run_x1; + run_x1 = steps[k + 1].x; + if(run_x1 > run_x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_texture_mask_run(linebuf + (run_x0 - x0) * 3, maskbuf + (run_x0 - x0), run_x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + running_sum += steps[k].delta; + if(x1 > run_x1) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_texture_mask_run(linebuf + (run_x1 - x0) * 3, maskbuf + (run_x1 - x0), run_x1, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + else + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgb_texture_mask_run(linebuf, maskbuf, x0, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + data->dst += data->dst_rowstride; +} + +static +void ksvg_art_rgba_texture_run(art_u8 *dst_p, int x0, int x1, int y, const double inv[6], + int alpha, const art_u8 *src, int src_rowstride, int src_width, int src_height) +{ + const art_u8 *src_p; + ArtPoint pt, src_pt; + int src_x, src_y; + int x; + int srcAlpha; + + if(alpha > 255) + alpha = 255; + + /* TODO: optimise and filter? */ + pt.y = y + 0.5; + + for(x = x0; x < x1; x++) + { + int s; + int d; + int tmp; + int tmp2; + + pt.x = x + 0.5; + + art_affine_point(&src_pt, &pt, inv); + + src_x = (int)floor(src_pt.x); + src_y = (int)floor(src_pt.y); + + if(src_x < 0) + { + /* Can't assume % behaviour with negative values */ + src_x += ((src_x / -src_width) + 1) * src_width; + } + + if(src_y < 0) + { + src_y += ((src_y / -src_height) + 1) * src_height; + } + + src_x %= src_width; + src_y %= src_height; + + src_p = src + (src_y * src_rowstride) + src_x * 4; + + /* Pattern source is in RGBA format, premultiplied. + * alpha represents fill/stroke/group opacity. + * + * Multiply source alpha by 'alpha' then composite over. + * For each colour channel, d = d + alpha * (s - srcAlpha * d). + */ + + srcAlpha = src_p[3]; + + d = *dst_p; + s = *src_p++; + + tmp = srcAlpha * d + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = alpha * (s - tmp) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + + d = *dst_p; + s = *src_p++; + + tmp = srcAlpha * d + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = alpha * (s - tmp) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + + d = *dst_p; + s = *src_p++; + + tmp = srcAlpha * d + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = alpha * (s - tmp) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + + /* dstAlpha = dstAlpha + srcAlpha * alpha * (1 - dstAlpha) */ + d = *dst_p; + + tmp = srcAlpha * alpha + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = tmp * (255 - d) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + src_p++; + } +} + +static void +ksvg_art_rgba_texture_callback (void *callback_data, int y, + int start, ArtSVPRenderAAStep *steps, int n_steps) +{ + ksvgArtRgbAffineClipAlphaData *data = (ksvgArtRgbAffineClipAlphaData *)callback_data; + art_u8 *linebuf; + int run_x0, run_x1; + art_u32 running_sum = start; + int x0, x1; + int k; + int *alphatab; + int alpha; + + linebuf = data->dst; + x0 = data->x0; + x1 = data->x1; + + alphatab = data->alphatab; + + if(n_steps > 0) + { + run_x1 = steps[0].x; + if(run_x1 > x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_texture_run(linebuf, x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + for(k = 0; k < n_steps - 1; k++) + { + running_sum += steps[k].delta; + run_x0 = run_x1; + run_x1 = steps[k + 1].x; + if(run_x1 > run_x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_texture_run(linebuf + (run_x0 - x0) * 4, run_x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + running_sum += steps[k].delta; + if(x1 > run_x1) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_texture_run(linebuf + (run_x1 - x0) * 4, run_x1, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + else + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_texture_run(linebuf, x0, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + data->dst += data->dst_rowstride; +} + +static +void ksvg_art_rgba_texture_mask_run(art_u8 *dst_p, const art_u8 *mask, int x0, int x1, int y, const double inv[6], + int alpha, const art_u8 *src, int src_rowstride, int src_width, int src_height) +{ + const art_u8 *src_p; + ArtPoint pt, src_pt; + int src_x, src_y; + int x; + int srcAlpha; + + if(alpha > 255) + alpha = 255; + + /* TODO: optimise and filter? */ + pt.y = y + 0.5; + + for(x = x0; x < x1; x++) + { + int s; + int d; + int am; + int tmp; + int tmp2; + + pt.x = x + 0.5; + + art_affine_point(&src_pt, &pt, inv); + + src_x = (int)floor(src_pt.x); + src_y = (int)floor(src_pt.y); + + if(src_x < 0) + { + /* Can't assume % behaviour with negative values */ + src_x += ((src_x / -src_width) + 1) * src_width; + } + + if(src_y < 0) + { + src_y += ((src_y / -src_height) + 1) * src_height; + } + + src_x %= src_width; + src_y %= src_height; + + src_p = src + (src_y * src_rowstride) + src_x * 4; + + /* Pattern source is in RGBA format, premultiplied. + * alpha represents fill/stroke/group opacity. + * + * Multiply source alpha by 'alpha' and mask value then composite over. + * For each channel, d = d + alpha * mask * (s - srcAlpha * d). + */ + + am = (alpha * *mask++) + 0x80; + am = (am + (am >> 8)) >> 8; + + srcAlpha = src_p[3]; + + d = *dst_p; + s = *src_p++; + + tmp = srcAlpha * d + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = am * (s - tmp) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + + d = *dst_p; + s = *src_p++; + + tmp = srcAlpha * d + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = am * (s - tmp) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + + d = *dst_p; + s = *src_p++; + + tmp = srcAlpha * d + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = am * (s - tmp) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + + /* dstAlpha = dstAlpha + srcAlpha * alpha * mask * (1 - dstAlpha) */ + d = *dst_p; + + tmp = srcAlpha * am + 0x80; + tmp = (tmp + (tmp >> 8)) >> 8; + + tmp2 = tmp * (255 - d) + 0x80; + tmp2 = (tmp2 + (tmp2 >> 8)) >> 8; + + *dst_p++ = d + tmp2; + src_p++; + } +} + +static void +ksvg_art_rgba_texture_mask_callback (void *callback_data, int y, + int start, ArtSVPRenderAAStep *steps, int n_steps) +{ + ksvgArtRgbAffineClipAlphaData *data = (ksvgArtRgbAffineClipAlphaData *)callback_data; + art_u8 *linebuf; + int run_x0, run_x1; + art_u32 running_sum = start; + int x0, x1; + int k; + int *alphatab; + int alpha; + const art_u8 *maskbuf; + + linebuf = data->dst; + x0 = data->x0; + x1 = data->x1; + + alphatab = data->alphatab; + + maskbuf = data->mask + (y - data->y0) * (x1 - x0); + + if(n_steps > 0) + { + run_x1 = steps[0].x; + if(run_x1 > x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_texture_mask_run(linebuf, maskbuf, x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + for(k = 0; k < n_steps - 1; k++) + { + running_sum += steps[k].delta; + run_x0 = run_x1; + run_x1 = steps[k + 1].x; + if(run_x1 > run_x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_texture_mask_run(linebuf + (run_x0 - x0) * 4, maskbuf + (run_x0 - x0), run_x0, run_x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + running_sum += steps[k].delta; + if(x1 > run_x1) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_texture_mask_run(linebuf + (run_x1 - x0) * 4, maskbuf + (run_x1 - x0), run_x1, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + } + else + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + ksvg_art_rgba_texture_mask_run(linebuf, maskbuf, x0, x1, y, data->inv, alphatab[alpha], data->src, data->src_rowstride, data->src_width, data->src_height); + } + + data->dst += data->dst_rowstride; +} + +/** + * ksvg_art_rgb_texture: Affine transform source RGB image and composite, with clipping path. + * @svp: Clipping path. + * @dst: Destination image RGB buffer. + * @x0: Left coordinate of destination rectangle. + * @y0: Top coordinate of destination rectangle. + * @x1: Right coordinate of destination rectangle. + * @y1: Bottom coordinate of destination rectangle. + * @dst_rowstride: Rowstride of @dst buffer. + * @src: Source image RGB buffer. + * @src_width: Width of source image. + * @src_height: Height of source image. + * @src_rowstride: Rowstride of @src buffer. + * @affine: Affine transform. + * @level: Filter level. + * @alphagamma: #ArtAlphaGamma for gamma-correcting the compositing. + * @alpha: Alpha, range 0..256. + * + * Affine transform the source image stored in @src, compositing over + * the area of destination image @dst specified by the rectangle + * (@x0, @y0) - (@x1, @y1). As usual in libart, the left and top edges + * of this rectangle are included, and the right and bottom edges are + * excluded. + * + * The @alphagamma parameter specifies that the alpha compositing be done + * in a gamma-corrected color space. Since the source image is opaque RGB, + * this argument only affects the edges. In the current implementation, + * it is ignored. + * + * The @level parameter specifies the speed/quality tradeoff of the + * image interpolation. Currently, only ART_FILTER_NEAREST is + * implemented. + * + * KSVG additions : we have changed this function to support an alpha level as well. +* also we made sure compositing an rgba image over an rgb buffer works. +**/ +void ksvg_art_rgb_texture(const ArtSVP *svp, art_u8 *dst, int x0, int y0, int x1, int y1, int dst_rowstride, + int dst_channels, + const art_u8 *src, + int src_width, int src_height, int src_rowstride, + const double affine[6], + ArtFilterLevel level, + ArtAlphaGamma *alphaGamma, + int alpha, + const art_u8 *mask) +{ + ksvgArtRgbAffineClipAlphaData data; + int i; + int a, da; + + data.alpha = alpha; + + a = 0x8000; + da = (alpha * 66051 + 0x80) >> 8; /* 66051 equals 2 ^ 32 / (255 * 255) */ + + for(i = 0; i < 256; i++) + { + data.alphatab[i] = a >> 16; + a += da; + } + + data.dst = dst; + data.dst_rowstride = dst_rowstride; + data.x0 = x0; + data.x1 = x1; + + data.inv[0] = affine[0]; + data.inv[1] = affine[1]; + data.inv[2] = affine[2]; + data.inv[3] = affine[3]; + data.inv[4] = affine[4]; + data.inv[5] = affine[5]; + + data.src = src; + data.src_width = src_width; + data.src_height = src_height; + data.src_rowstride = src_rowstride; + + data.mask = mask; + data.y0 = y0; + + if(mask) + { + if(dst_channels == 3) + art_svp_render_aa(svp, x0, y0, x1, y1, ksvg_art_rgb_texture_mask_callback, &data); + else + art_svp_render_aa(svp, x0, y0, x1, y1, ksvg_art_rgba_texture_mask_callback, &data); + } + else + { + if(dst_channels == 3) + art_svp_render_aa(svp, x0, y0, x1, y1, ksvg_art_rgb_texture_callback, &data); + else + art_svp_render_aa(svp, x0, y0, x1, y1, ksvg_art_rgba_texture_callback, &data); + } +} + +/** + * ksvg_art_svp_move: moves an svp relatively to the current position. + * @svp: SVP to move. + * @dx: relative amount to move horizontally. + * @dy: relative amount to move vertically. + * + * Note : this function always moves the svp, not taking into account render buffer + * boundaries. + **/ +void ksvg_art_svp_move(ArtSVP *svp, int dx, int dy) +{ + int i, j; + ArtSVPSeg *seg; + + if(dx == 0 && dy == 0) return; + for(i = 0;i < svp->n_segs;i++) + { + seg = &svp->segs[i]; + for(j = 0;j < seg->n_points;j++) + { + seg->points[j].x += dx; + seg->points[j].y += dy; + } + seg->bbox.x0 += dx; + seg->bbox.y0 += dy; + seg->bbox.x1 += dx; + seg->bbox.y1 += dy; + } +} + diff --git a/ksvg/impl/libs/art_support/art_misc.h b/ksvg/impl/libs/art_support/art_misc.h new file mode 100644 index 00000000..52f09a63 --- /dev/null +++ b/ksvg/impl/libs/art_support/art_misc.h @@ -0,0 +1,79 @@ +/* Libart_LGPL - library of basic graphic primitives + * Copyright (C) 1998 Raph Levien + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#ifndef __KSVG_ART_H__ +#define __KSVG_ART_H__ + +#include <libart_lgpl/art_misc.h> +#include <libart_lgpl/art_bpath.h> +#include <libart_lgpl/art_vpath.h> +#include <libart_lgpl/art_alphagamma.h> +#include <libart_lgpl/art_filterlevel.h> +#include <libart_lgpl/art_svp.h> + +#define ART_END2 10 + +#ifdef __cplusplus +extern "C" { +#endif + + void ksvg_art_vpath_render_bez (ArtVpath **p_vpath, int *pn, int *pn_max, + double x0, double y0, + double x1, double y1, + double x2, double y2, + double x3, double y3, + double flatness); + + ArtVpath *ksvg_art_bez_path_to_vec(const ArtBpath *bez, double flatness); + + void ksvg_art_rgb_affine_run (int *p_x0, int *p_x1, int y, + int src_width, int src_height, + const double affine[6]); + + void ksvg_art_rgb_affine (art_u8 *dst, int x0, int y0, int x1, int y1, int dst_rowstride, + const art_u8 *src, + int src_width, int src_height, int src_rowstride, + const double affine[6], + ArtFilterLevel level, + ArtAlphaGamma *alphagamma, + int alpha); + + void ksvg_art_rgb_affine_clip(const ArtSVP *svp, art_u8 *dst, int x0, int y0, int x1, int y1, int dst_rowstride, int dst_channels, + const art_u8 *src, + int src_width, int src_height, int src_rowstride, + const double affine[6], + int alpha, const art_u8 *mask); + + void ksvg_art_rgb_texture(const ArtSVP *svp, art_u8 *dst, int x0, int y0, int x1, int y1, int dst_rowstride, + int dst_channels, + const art_u8 *src, + int src_width, int src_height, int src_rowstride, + const double affine[6], + ArtFilterLevel level, + ArtAlphaGamma *alphaGamma, + int alpha, + const art_u8 *mask); + + void ksvg_art_svp_move(ArtSVP *svp, int dx, int dy); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/ksvg/impl/libs/art_support/art_render_misc.c b/ksvg/impl/libs/art_support/art_render_misc.c new file mode 100644 index 00000000..1603da1e --- /dev/null +++ b/ksvg/impl/libs/art_support/art_render_misc.c @@ -0,0 +1,774 @@ +/* This file is part of the KDE project. + * art_render_misc.c: Here I store some routines I feel should be in libart :) + * + * Copyright (C) 2001-2003 KSVG Team + * + * This code is adapted from : + * + * art_render_gradient.c: Gradient image source for modular rendering. + * + * Libart_LGPL - library of basic graphic primitives + * Copyright (C) 2000 Raph Levien + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + * Authors: Raph Levien <[email protected]> + * Alexander Larsson <[email protected]> + */ + +#include "config.h" +#include "art_render_misc.h" + +#include <math.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +/* These are in KSVGHelper.cpp */ +int linearRGBFromsRGB(int sRGB8bit); +int sRGBFromLinearRGB(int linearRGB8bit); + +typedef struct _ArtImageSourceGradRad ArtImageSourceGradRad; + +struct _ArtImageSourceGradRad { + ArtImageSource super; + const ArtKSVGGradientRadial *gradient; + double a; +}; + +#define EPSILON 1e-6 + +/** + * art_ksvg_render_gradient_setpix: Set a gradient pixel. + * @render: The render object. + * @dst: Pointer to destination (where to store pixel). + * @n_stops: Number of stops in @stops. + * @stops: The stops for the gradient. + * @offset: The offset. + * + * @n_stops must be > 0. + * + * Sets a gradient pixel, storing it at @dst. + **/ +static void +art_ksvg_render_gradient_setpix (ArtRender *render, + art_u8 *dst, + int n_stops, ArtGradientStop *stops, + double offset, ArtKSVGGradientInterpolation interpolation) +{ + int ix; + int j; + double off0, off1; + int n_ch = render->n_chan + 1; + + for (ix = 0; ix < n_stops; ix++) + if (stops[ix].offset > offset) + break; + /* stops[ix - 1].offset < offset < stops[ix].offset */ + if (ix > 0 && ix < n_stops) + { + off0 = stops[ix - 1].offset; + off1 = stops[ix].offset; + if (fabs (off1 - off0) > EPSILON) + { + double interp; + + interp = (offset - off0) / (off1 - off0); + if(interpolation == ART_KSVG_LINEARRGB_INTERPOLATION) + { + for (j = 0; j < n_ch; j++) + { + int z0, z1; + int z; + int z0_8bit, z0_linearRGB_8bit; + int z1_8bit, z1_linearRGB_8bit; + int z_8bit, z_sRGB_8bit; + + /* Note: Using explicit variables for intermediate steps since */ + /* the ART_PIX macros reference the argument more than once. */ + z0 = stops[ix - 1].color[j]; + z0_8bit = ART_PIX_8_FROM_MAX(z0); + z0_linearRGB_8bit = linearRGBFromsRGB(z0_8bit); + z0 = ART_PIX_MAX_FROM_8(z0_linearRGB_8bit); + + z1 = stops[ix].color[j]; + z1_8bit = ART_PIX_8_FROM_MAX(z1); + z1_linearRGB_8bit = linearRGBFromsRGB(z1_8bit); + z1 = ART_PIX_MAX_FROM_8(z1_linearRGB_8bit); + + z = floor (z0 + (z1 - z0) * interp + 0.5); + z_8bit = ART_PIX_8_FROM_MAX(z); + z_sRGB_8bit = sRGBFromLinearRGB(z_8bit); + + if (render->buf_depth == 8) + dst[j] = z_sRGB_8bit; + else /* (render->buf_depth == 16) */ + ((art_u16 *)dst)[j] = ART_PIX_MAX_FROM_8(z_sRGB_8bit); + } + } + else + { + /* sRGB interpolation */ + for (j = 0; j < n_ch; j++) + { + int z0, z1; + int z; + z0 = stops[ix - 1].color[j]; + z1 = stops[ix].color[j]; + z = floor (z0 + (z1 - z0) * interp + 0.5); + if (render->buf_depth == 8) + dst[j] = ART_PIX_8_FROM_MAX (z); + else /* (render->buf_depth == 16) */ + ((art_u16 *)dst)[j] = z; + } + } + return; + } + } + else if (ix == n_stops) + ix--; + + for (j = 0; j < n_ch; j++) + { + int z; + z = stops[ix].color[j]; + if (render->buf_depth == 8) + dst[j] = ART_PIX_8_FROM_MAX (z); + else /* (render->buf_depth == 16) */ + ((art_u16 *)dst)[j] = z; + } +} + +static void +art_ksvg_render_gradient_radial_done (ArtRenderCallback *self, ArtRender *render) +{ + art_free (self); +} + +static void +art_ksvg_render_gradient_radial_render (ArtRenderCallback *self, ArtRender *render, + art_u8 *dest, int y) +{ + ArtImageSourceGradRad *z = (ArtImageSourceGradRad *)self; + const ArtKSVGGradientRadial *gradient = z->gradient; + int pixstride = (render->n_chan + 1) * (render->depth >> 3); + int x; + int x0 = render->x0; + int width = render->x1 - x0; + int n_stops = gradient->n_stops; + ArtGradientStop *stops = gradient->stops; + art_u8 *bufp = render->image_buf; + double fx = gradient->fx; + double fy = gradient->fy; + double dx, dy; + double *affine = gradient->affine; + double aff0 = affine[0]; + double aff1 = affine[1]; + const double a = z->a; + const double arecip = 1.0 / a; + double b, db; + double c, dc, ddc; + double b_a, db_a; + double rad, drad, ddrad; + ArtGradientSpread spread = gradient->spread; + + dx = x0 * aff0 + y * affine[2] + affine[4] - fx; + dy = x0 * aff1 + y * affine[3] + affine[5] - fy; + b = dx * fx + dy * fy; + db = aff0 * fx + aff1 * fy; + c = dx * dx + dy * dy; + dc = 2 * aff0 * dx + aff0 * aff0 + 2 * aff1 * dy + aff1 * aff1; + ddc = 2 * aff0 * aff0 + 2 * aff1 * aff1; + + b_a = b * arecip; + db_a = db * arecip; + + rad = b_a * b_a + c * arecip; + drad = 2 * b_a * db_a + db_a * db_a + dc * arecip; + ddrad = 2 * db_a * db_a + ddc * arecip; + + for (x = 0; x < width; x++) + { + double z; + + if (rad > 0) + z = b_a + sqrt (rad); + else + z = b_a; + + if (spread == ART_GRADIENT_REPEAT) + z = z - floor (z); + else if (spread == ART_GRADIENT_REFLECT) + { + double tmp; + + tmp = z - 2 * floor (0.5 * z); + z = tmp > 1 ? 2 - tmp : tmp; + } + + art_ksvg_render_gradient_setpix (render, bufp, n_stops, stops, z, gradient->interpolation); + bufp += pixstride; + b_a += db_a; + rad += drad; + drad += ddrad; + } +} + +static void +art_ksvg_render_gradient_radial_negotiate (ArtImageSource *self, ArtRender *render, + ArtImageSourceFlags *p_flags, + int *p_buf_depth, ArtAlphaType *p_alpha) +{ + self->super.render = art_ksvg_render_gradient_radial_render; + *p_flags = 0; + *p_buf_depth = render->depth; + *p_alpha = ART_ALPHA_SEPARATE; +} + +/** + * art_ksvg_render_gradient_radial: Add a radial gradient image source. + * @render: The render object. + * @gradient: The radial gradient. + * + * Adds the radial gradient @gradient as the image source for rendering + * in the render object @render. + **/ +void +art_ksvg_render_gradient_radial (ArtRender *render, + const ArtKSVGGradientRadial *gradient, + ArtFilterLevel level) +{ + ArtImageSourceGradRad *image_source = art_new (ArtImageSourceGradRad, 1); + double fx = gradient->fx; + double fy = gradient->fy; + + image_source->super.super.render = NULL; + image_source->super.super.done = art_ksvg_render_gradient_radial_done; + image_source->super.negotiate = art_ksvg_render_gradient_radial_negotiate; + + image_source->gradient = gradient; + /* todo: sanitycheck fx, fy? */ + image_source->a = 1 - fx * fx - fy * fy; + + art_render_add_image_source (render, &image_source->super); +} + + +/* Hack to find out how to define alloca on different platforms. + * Modified version of glib/galloca.h. + */ + +#ifdef __GNUC__ +/* GCC does the right thing */ + #undef alloca + #define alloca(size) __builtin_alloca (size) +#elif defined (HAVE_ALLOCA_H) +/* a native and working alloca.h is there */ + #include <alloca.h> +#else /* !__GNUC__ && !HAVE_ALLOCA_H */ + #ifdef _MSC_VER + #include <malloc.h> + #define alloca _alloca + #else /* !_MSC_VER */ + #ifdef _AIX + #pragma alloca + #else /* !_AIX */ + #ifndef alloca /* predefined by HP cc +Olibcalls */ +char *alloca (); + #endif /* !alloca */ + #endif /* !_AIX */ + #endif /* !_MSC_VER */ +#endif /* !__GNUC__ && !HAVE_ALLOCA_H */ + +#undef DEBUG_SPEW + +typedef struct _ArtImageSourceGradLin ArtImageSourceGradLin; + +/* The stops will be copied right after this structure */ +struct _ArtImageSourceGradLin +{ + ArtImageSource super; + ArtKSVGGradientLinear gradient; + ArtGradientStop stops[1]; +}; + +#ifndef MAX + #define MAX(a, b) (((a) > (b)) ? (a) : (b)) +#endif /* MAX */ + +#ifndef MIN + #define MIN(a, b) (((a) < (b)) ? (a) : (b)) +#endif /* MIN */ + +static void +art_ksvg_rgba_gradient_run (art_u8 *buf, + art_u8 *color1, + art_u8 *color2, + int len) +{ + int i; + int r, g, b, a; + int dr, dg, db, da; + +#ifdef DEBUG_SPEW + printf ("gradient run from %3d %3d %3d %3d to %3d %3d %3d %3d in %d pixels\n", + color1[0], color1[1], color1[2], color1[3], + color2[0], color2[1], color2[2], color2[3], + len); +#endif + + r = (color1[0] << 16) + 0x8000; + g = (color1[1] << 16) + 0x8000; + b = (color1[2] << 16) + 0x8000; + a = (color1[3] << 16) + 0x8000; + dr = ((color2[0] - color1[0]) << 16) / len; + dg = ((color2[1] - color1[1]) << 16) / len; + db = ((color2[2] - color1[2]) << 16) / len; + da = ((color2[3] - color1[3]) << 16) / len; + + for(i = 0; i < len; i++) + { + *buf++ = (r>>16); + *buf++ = (g>>16); + *buf++ = (b>>16); + *buf++ = (a>>16); + + r += dr; + g += dg; + b += db; + a += da; + } +} + +static void +ksvg_calc_color_at (ArtGradientStop *stops, + int n_stops, + ArtGradientSpread spread, + double offset, + double offset_fraction, + int favor_start, + int ix, + art_u8 *color) +{ + double off0, off1; + int j; + + if(spread == ART_GRADIENT_PAD) + { + if(offset < EPSILON) + { + color[0] = ART_PIX_8_FROM_MAX (stops[0].color[0]); + color[1] = ART_PIX_8_FROM_MAX (stops[0].color[1]); + color[2] = ART_PIX_8_FROM_MAX (stops[0].color[2]); + color[3] = ART_PIX_8_FROM_MAX (stops[0].color[3]); + return; + } + if(offset >= 1.0 - EPSILON) + { + color[0] = ART_PIX_8_FROM_MAX (stops[n_stops-1].color[0]); + color[1] = ART_PIX_8_FROM_MAX (stops[n_stops-1].color[1]); + color[2] = ART_PIX_8_FROM_MAX (stops[n_stops-1].color[2]); + color[3] = ART_PIX_8_FROM_MAX (stops[n_stops-1].color[3]); + return; + } + } + + if(ix > 0 && ix < n_stops) + { + off0 = stops[ix - 1].offset; + off1 = stops[ix].offset; + if(fabs (off1 - off0) > EPSILON) + { + double interp; + double o; + o = offset_fraction; + + if((fabs (o) < EPSILON) && (!favor_start)) + o = 1.0; + else if((fabs (o-1.0) < EPSILON) && (favor_start)) + o = 0.0; + + /* + if (offset_fraction == 0.0 && !favor_start) + offset_fraction = 1.0; + */ + + interp = (o - off0) / (off1 - off0); + for(j = 0; j < 4; j++) + { + int z0, z1; + int z; + z0 = stops[ix - 1].color[j]; + z1 = stops[ix].color[j]; + z = floor (z0 + (z1 - z0) * interp + 0.5); + color[j] = ART_PIX_8_FROM_MAX (z); + } + return; + } + /* If offsets are too close to safely do the division, just + pick the ix color. */ + color[0] = ART_PIX_8_FROM_MAX (stops[ix].color[0]); + color[1] = ART_PIX_8_FROM_MAX (stops[ix].color[1]); + color[2] = ART_PIX_8_FROM_MAX (stops[ix].color[2]); + color[3] = ART_PIX_8_FROM_MAX (stops[ix].color[3]); + return; + } + + /*printf ("WARNING! bad ix %d in calc_color_at() [internal error]\n", ix); + assert (0);*/ +} + +static void +art_ksvg_render_gradient_linear_render_8 (ArtRenderCallback *self, + ArtRender *render, + art_u8 *dest, int y) +{ + ArtImageSourceGradLin *z = (ArtImageSourceGradLin *)self; + const ArtKSVGGradientLinear *gradient = &(z->gradient); + int i; + int width = render->x1 - render->x0; + int len; + double offset, d_offset; + double offset_fraction; + int next_stop; + int ix; + art_u8 color1[4], color2[4]; + int n_stops = gradient->n_stops; + int extra_stops; + ArtGradientStop *stops = gradient->stops; + ArtGradientStop *tmp_stops; + art_u8 *bufp = render->image_buf; + ArtGradientSpread spread = gradient->spread; + +#ifdef DEBUG_SPEW + printf ("x1: %d, x2: %d, y: %d\n", render->x0, render->x1, y); + printf ("spread: %d, stops:", gradient->spread); + for(i=0;i<n_stops;i++) + { + printf ("%f, ", gradient->stops[i].offset); + } + printf ("\n"); + printf ("a: %f, b: %f, c: %f\n", gradient->a, gradient->b, gradient->c); +#endif + + offset = render->x0 * gradient->affine[0] + y * gradient->affine[2] + gradient->affine[4]; + d_offset = gradient->affine[0]; + + /* We need to force the gradient to extend the whole 0..1 segment, + because the rest of the code doesn't handle partial gradients + correctly */ + if((gradient->stops[0].offset > EPSILON /* == 0.0 */) || + (gradient->stops[n_stops-1].offset < (1.0 - EPSILON))) + { + extra_stops = 0; + tmp_stops = stops = alloca (sizeof (ArtGradientStop) * (n_stops + 2)); + if(gradient->stops[0].offset > EPSILON /* 0.0 */) + { + memcpy (tmp_stops, gradient->stops, sizeof (ArtGradientStop)); + tmp_stops[0].offset = 0.0; + tmp_stops += 1; + extra_stops++; + } + memcpy (tmp_stops, gradient->stops, sizeof (ArtGradientStop) * n_stops); + if(gradient->stops[n_stops-1].offset < (1.0 - EPSILON)) + { + tmp_stops += n_stops; + memcpy (tmp_stops, &gradient->stops[n_stops-1], sizeof (ArtGradientStop)); + tmp_stops[0].offset = 1.0; + extra_stops++; + } + n_stops += extra_stops; + + +#ifdef DEBUG_SPEW + printf ("start/stop modified stops:"); + for(i=0;i<n_stops;i++) + { + printf ("%f, ", stops[i].offset); + } + printf ("\n"); +#endif + + } + + if(spread == ART_GRADIENT_REFLECT) + { + tmp_stops = stops; + stops = alloca (sizeof (ArtGradientStop) * n_stops * 2); + memcpy (stops, tmp_stops, sizeof (ArtGradientStop) * n_stops); + + for(i = 0; i< n_stops; i++) + { + stops[n_stops * 2 - 1 - i].offset = (1.0 - stops[i].offset / 2.0); + memcpy (stops[n_stops * 2 - 1 - i].color, stops[i].color, sizeof (stops[i].color)); + stops[i].offset = stops[i].offset / 2.0; + } + + spread = ART_GRADIENT_REPEAT; + offset = offset / 2.0; + d_offset = d_offset / 2.0; + + n_stops = 2 * n_stops; + +#ifdef DEBUG_SPEW + printf ("reflect modified stops:"); + for(i=0;i<n_stops;i++) + { + printf ("%f, ", stops[i].offset); + } + printf ("\n"); +#endif + } + + offset_fraction = offset - floor (offset); +#ifdef DEBUG_SPEW + printf ("inital offset: %f, fraction: %f d_offset: %f\n", offset, offset_fraction, d_offset); +#endif + /* ix is selected so that offset_fraction is + stops[ix-1] <= offset_fraction <= stops[ix] + If offset_fraction is equal to one of the edges, ix + is selected so the the section of the line extending + in the same direction as d_offset is between ix-1 and ix. + */ + for(ix = 0; ix < n_stops; ix++) + if(stops[ix].offset > offset_fraction || + (d_offset < 0.0 && fabs (stops[ix].offset - offset_fraction) < EPSILON)) + break; + if(ix == 0) + ix = n_stops - 1; + else if(ix == n_stops) + ix = n_stops - 1; + +#ifdef DEBUG_SPEW + printf ("Initial ix: %d\n", ix); +#endif +#if 0 + assert (ix > 0); + assert (ix < n_stops); + assert ((stops[ix-1].offset <= offset_fraction + EPSILON) || + ((stops[ix].offset > (1.0 - EPSILON)) && (offset_fraction < EPSILON /* == 0.0*/))); + /*assert (offset_fraction <= stops[ix].offset);*/ + /* FIXME: These asserts may be broken, it is for now + safer to not use them. Should be fixed! + See bug #121850 + assert ((offset_fraction != stops[ix-1].offset) || + (d_offset >= 0.0)); + assert ((offset_fraction != stops[ix].offset) || + (d_offset <= 0.0)); + */ +#endif + while(width > 0) + { +#ifdef DEBUG_SPEW + printf ("ix: %d\n", ix); + printf ("start offset: %f\n", offset); +#endif + ksvg_calc_color_at (stops, n_stops, + spread, + offset, + offset_fraction, + (d_offset > -EPSILON), + ix, + color1); + + if(d_offset > 0) + next_stop = ix; + else + next_stop = ix-1; + +#ifdef DEBUG_SPEW + printf ("next_stop: %d\n", next_stop); +#endif + if(fabs (d_offset) > EPSILON) + { + double o; + o = offset_fraction; + + if((fabs (o) <= EPSILON) && (ix == n_stops - 1)) + o = 1.0; + else if((fabs (o-1.0) <= EPSILON) && (ix == 1)) + o = 0.0; + +#ifdef DEBUG_SPEW + printf ("o: %f\n", o); +#endif + len = (int)floor (fabs ((stops[next_stop].offset - o) / d_offset)) + 1; + len = MAX (len, 0); + len = MIN (len, width); + } + else + { + len = width; + } +#ifdef DEBUG_SPEW + printf ("len: %d\n", len); +#endif + if(len > 0) + { + offset = offset + (len-1) * d_offset; + offset_fraction = offset - floor (offset); +#ifdef DEBUG_SPEW + printf ("end offset: %f, fraction: %f\n", offset, offset_fraction); +#endif + ksvg_calc_color_at (stops, n_stops, + spread, + offset, + offset_fraction, + (d_offset < EPSILON), + ix, + color2); + + art_ksvg_rgba_gradient_run (bufp, + color1, + color2, + len); + offset += d_offset; + offset_fraction = offset - floor (offset); + } + + if(d_offset > 0) + { + do + { + ix++; + if(ix == n_stops) + ix = 1; + /* Note: offset_fraction can actually be one here on x86 machines that + does calculations with extended precision, but later rounds to 64bit. + This happens if the 80bit offset_fraction is larger than the + largest 64bit double that is less than one. + */ + } + while(!((stops[ix-1].offset <= offset_fraction && + offset_fraction < stops[ix].offset) || + (ix == 1 && offset_fraction > (1.0 - EPSILON)))); + } + else + { + do + { + ix--; + if(ix == 0) + ix = n_stops - 1; + } + while(!((stops[ix-1].offset < offset_fraction && + offset_fraction <= stops[ix].offset) || + (ix == n_stops - 1 && offset_fraction < EPSILON /* == 0.0*/))); + } + + bufp += 4*len; + width -= len; + } +} + +static void +art_ksvg_render_gradient_linear_done (ArtRenderCallback *self, ArtRender *render) +{ + art_free (self); +} + +static void +art_ksvg_render_gradient_linear_render (ArtRenderCallback *self, ArtRender *render, + art_u8 *dest, int y) +{ + ArtImageSourceGradLin *z = (ArtImageSourceGradLin *)self; + const ArtKSVGGradientLinear *gradient = &(z->gradient); + int pixstride = (render->n_chan + 1) * (render->depth >> 3); + int x; + int width = render->x1 - render->x0; + double offset, d_offset; + double actual_offset; + int n_stops = gradient->n_stops; + ArtGradientStop *stops = gradient->stops; + art_u8 *bufp = render->image_buf; + ArtGradientSpread spread = gradient->spread; + + offset = render->x0 * gradient->affine[0] + y * gradient->affine[2] + gradient->affine[4]; + d_offset = gradient->affine[0]; + + for(x = 0; x < width; x++) + { + if(spread == ART_GRADIENT_PAD) + actual_offset = offset; + else if(spread == ART_GRADIENT_REPEAT) + actual_offset = offset - floor (offset); + else /* (spread == ART_GRADIENT_REFLECT) */ + { + double tmp; + + tmp = offset - 2 * floor (0.5 * offset); + actual_offset = tmp > 1 ? 2 - tmp : tmp; + } + art_ksvg_render_gradient_setpix (render, bufp, n_stops, stops, actual_offset, gradient->interpolation); + offset += d_offset; + bufp += pixstride; + } +} + +static void +art_ksvg_render_gradient_linear_negotiate (ArtImageSource *self, ArtRender *render, + ArtImageSourceFlags *p_flags, + int *p_buf_depth, ArtAlphaType *p_alpha) +{ + ArtImageSourceGradLin *z = (ArtImageSourceGradLin *)self; + + if(render->depth == 8 && + render->n_chan == 3 && + z->gradient.interpolation == ART_KSVG_SRGB_INTERPOLATION) + { + /* The optimised renderer doesn't support linearRGB interpolation at the moment */ + /* so we only use it for sRGB, which is more common anyway. */ + self->super.render = art_ksvg_render_gradient_linear_render_8; + *p_flags = 0; + *p_buf_depth = 8; + *p_alpha = ART_ALPHA_SEPARATE; + return; + } + + self->super.render = art_ksvg_render_gradient_linear_render; + *p_flags = 0; + *p_buf_depth = render->depth; + *p_alpha = ART_ALPHA_SEPARATE; +} + +/** + * art_render_gradient_linear: Add a linear gradient image source. + * @render: The render object. + * @gradient: The linear gradient. + * + * Adds the linear gradient @gradient as the image source for rendering + * in the render object @render. + **/ +void +art_ksvg_render_gradient_linear (ArtRender *render, + const ArtKSVGGradientLinear *gradient, + ArtFilterLevel level) +{ + ArtImageSourceGradLin *image_source = art_alloc (sizeof (ArtImageSourceGradLin) + + sizeof (ArtGradientStop) * (gradient->n_stops - 1)); + + image_source->super.super.render = NULL; + image_source->super.super.done = art_ksvg_render_gradient_linear_done; + image_source->super.negotiate = art_ksvg_render_gradient_linear_negotiate; + + /* copy the gradient into the structure */ + image_source->gradient = *gradient; + image_source->gradient.stops = image_source->stops; + memcpy (image_source->gradient.stops, gradient->stops, sizeof (ArtGradientStop) * gradient->n_stops); + + art_render_add_image_source (render, &image_source->super); +} + diff --git a/ksvg/impl/libs/art_support/art_render_misc.h b/ksvg/impl/libs/art_support/art_render_misc.h new file mode 100644 index 00000000..d1f3690b --- /dev/null +++ b/ksvg/impl/libs/art_support/art_render_misc.h @@ -0,0 +1,90 @@ +/* This file is part of the KDE project. + * art_render_misc.c: Here I store some routines I feel should be in libart :) + * + * Copyright (C) 2001-2002 KSVG Team + * + * This code is adapted from : + * + * art_render_gradient.h: Gradient image source for modular rendering. + * + * Libart_LGPL - library of basic graphic primitives + * Copyright (C) 2000 Raph Levien + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + * Authors: Raph Levien <[email protected]> + * Alexander Larsson <[email protected]> + */ + +#ifndef __ART_RENDER_MISC_H__ +#define __ART_RENDER_MISC_H__ + +#ifdef LIBART_COMPILATION +#include "art_filterlevel.h" +#include "art_render.h" +#include "art_render_gradient.h" +#else +#include <libart_lgpl/art_filterlevel.h> +#include <libart_lgpl/art_render.h> +#include <libart_lgpl/art_render_gradient.h> +#endif + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +typedef enum +{ + ART_KSVG_SRGB_INTERPOLATION, + ART_KSVG_LINEARRGB_INTERPOLATION +} ArtKSVGGradientInterpolation; + +typedef struct _ArtKSVGGradientRadial ArtKSVGGradientRadial; + +struct _ArtKSVGGradientRadial { + double affine[6]; /* transforms user coordinates to unit circle */ + double fx, fy; /* focal point in unit circle coords */ + int n_stops; + ArtGradientSpread spread; + ArtGradientStop *stops; + ArtKSVGGradientInterpolation interpolation; +}; + +void +art_ksvg_render_gradient_radial (ArtRender *render, + const ArtKSVGGradientRadial *gradient, + ArtFilterLevel level); + +typedef struct _ArtKSVGGradientLinear ArtKSVGGradientLinear; + +struct _ArtKSVGGradientLinear { + double affine[6]; /* transforms screen gradient vector to unit vector (1, 0) */ + ArtGradientSpread spread; + int n_stops; + ArtGradientStop *stops; + ArtKSVGGradientInterpolation interpolation; +}; + +void +art_ksvg_render_gradient_linear (ArtRender *render, + const ArtKSVGGradientLinear *gradient, + ArtFilterLevel level); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* __ART_RENDER_MISC_H__ */ diff --git a/ksvg/impl/libs/art_support/art_rgba_svp.c b/ksvg/impl/libs/art_support/art_rgba_svp.c new file mode 100644 index 00000000..47c7d924 --- /dev/null +++ b/ksvg/impl/libs/art_support/art_rgba_svp.c @@ -0,0 +1,659 @@ +/* Libart_LGPL - library of basic graphic primitives + * Copyright (C) 1998 Raph Levien + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +/* Render a sorted vector path into an RGB buffer. */ + +#include <X11/Xos.h> + +#include "art_rgba_svp.h" + +#include <libart_lgpl/art_svp.h> +#include <libart_lgpl/art_svp_render_aa.h> +#include <libart_lgpl/art_rgba.h> +#include <libart_lgpl/art_rgb.h> + +/* RGBA renderers */ + +typedef struct _ArtKSVGRgbaSVPAlphaData ArtKSVGRgbaSVPAlphaData; + +struct _ArtKSVGRgbaSVPAlphaData { + int alphatab[256]; + art_u8 r, g, b, alpha; + art_u32 rgba; + art_u8 *buf; + art_u8 *mask; + int rowstride; + int x0, x1; + int y0; +}; + +/** + * art_rgba_fill_run: fill an RGBA buffer a solid RGB color. + * @buf: Buffer to fill. + * @r: Red, range 0..255. + * @g: Green, range 0..255. + * @b: Blue, range 0..255. + * @n: Number of RGB triples to fill. + * + * Fills a buffer with @n copies of the (@r, @g, @b) triple, solid + * alpha. Thus, locations @buf (inclusive) through @buf + 4 * @n + * (exclusive) are written. + **/ +static void +art_ksvg_rgba_fill_run (art_u8 *buf, art_u8 r, art_u8 g, art_u8 b, int n) +{ + int i; +#if X_BYTE_ORDER == X_BIG_ENDIAN + art_u32 src_rgba; +#else + art_u32 src_abgr; +#endif + +#if X_BYTE_ORDER == X_BIG_ENDIAN + src_rgba = (r << 24) | (g << 16) | (b << 8) | 255; +#else + src_abgr = (255 << 24) | (b << 16) | (g << 8) | r; +#endif + for(i = 0; i < n; i++) + { +#if X_BYTE_ORDER == X_BIG_ENDIAN + ((art_u32 *)buf)[i] = src_rgba; +#else + ((art_u32 *)buf)[i] = src_abgr; +#endif + } +} + +/** + * art_rgba_run_alpha: Render semitransparent color over RGBA buffer. + * @buf: Buffer for rendering. + * @r: Red, range 0..255. + * @g: Green, range 0..255. + * @b: Blue, range 0..255. + * @alpha: Alpha, range 0..255. + * @n: Number of RGB triples to render. + * + * Renders a sequential run of solid (@r, @g, @b) color over @buf with + * opacity @alpha. Note that the range of @alpha is 0..255, in contrast + * to art_rgb_run_alpha, which has a range of 0..256. + **/ +static void +art_ksvg_rgba_run_alpha (art_u8 *buf, art_u8 r, art_u8 g, art_u8 b, int alpha, int n) +{ + int i; + int v; + int tmp; + + if(alpha > 255) + alpha = 255; + + for(i = 0; i < n; i++) + { + v = *buf; + tmp = (r - v) * alpha + 0x80; + *buf++ = v + ((tmp + (tmp >> 8)) >> 8); + + v = *buf; + tmp = (g - v) * alpha + 0x80; + *buf++ = v + ((tmp + (tmp >> 8)) >> 8); + + v = *buf; + tmp = (b - v) * alpha + 0x80; + *buf++ = v + ((tmp + (tmp >> 8)) >> 8); + + v = *buf; + tmp = (255 - alpha) * v + 0x80; + *buf++ = alpha + ((tmp + (tmp >> 8)) >> 8); + } +} + +static void +art_ksvg_rgba_mask_run_alpha (art_u8 *buf, art_u8 *mask, art_u8 r, art_u8 g, art_u8 b, int alpha, int n) +{ + int i; + int v; + int am; + int tmp; + + if(alpha > 255) + alpha = 255; + + for(i = 0; i < n; i++) + { + am = (alpha * *mask++) + 0x80; + am = (am + (am >> 8)) >> 8; + + v = *buf; + tmp = (r - v) * am + 0x80; + *buf++ = v + ((tmp + (tmp >> 8)) >> 8); + + v = *buf; + tmp = (g - v) * am + 0x80; + *buf++ = v + ((tmp + (tmp >> 8)) >> 8); + + v = *buf; + tmp = (b - v) * am + 0x80; + *buf++ = v + ((tmp + (tmp >> 8)) >> 8); + + v = *buf; + tmp = (255 - am) * v + 0x80; + *buf++ = am + ((tmp + (tmp >> 8)) >> 8); + } +} + +static void +art_ksvg_rgba_svp_alpha_callback(void *callback_data, int y, + int start, ArtSVPRenderAAStep *steps, int n_steps) +{ + ArtKSVGRgbaSVPAlphaData *data = (ArtKSVGRgbaSVPAlphaData *)callback_data; + art_u8 *linebuf; + int run_x0, run_x1; + art_u32 running_sum = start; + int x0, x1; + int k; + art_u8 r, g, b; + int *alphatab; + int alpha; + + linebuf = data->buf; + x0 = data->x0; + x1 = data->x1; + + r = data->r; + g = data->g; + b = data->b; + alphatab = data->alphatab; + + if (n_steps > 0) + { + run_x1 = steps[0].x; + if (run_x1 > x0) + { + alpha = (running_sum >> 16) & 0xff; + if (alpha) + art_ksvg_rgba_run_alpha (linebuf, + r, g, b, alphatab[alpha], + run_x1 - x0); + } + + for (k = 0; k < n_steps - 1; k++) + { + running_sum += steps[k].delta; + run_x0 = run_x1; + run_x1 = steps[k + 1].x; + if (run_x1 > run_x0) + { + alpha = (running_sum >> 16) & 0xff; + if (alpha) + art_ksvg_rgba_run_alpha (linebuf + (run_x0 - x0) * 4, + r, g, b, alphatab[alpha], + run_x1 - run_x0); + } + } + running_sum += steps[k].delta; + if (x1 > run_x1) + { + alpha = (running_sum >> 16) & 0xff; + if (alpha) + art_ksvg_rgba_run_alpha (linebuf + (run_x1 - x0) * 4, + r, g, b, alphatab[alpha], + x1 - run_x1); + } + } + else + { + alpha = (running_sum >> 16) & 0xff; + if (alpha) + art_ksvg_rgba_run_alpha (linebuf, + r, g, b, alphatab[alpha], + x1 - x0); + } + + data->buf += data->rowstride; +} + +static void +art_ksvg_rgba_svp_alpha_opaque_callback(void *callback_data, int y, + int start, + ArtSVPRenderAAStep *steps, int n_steps) +{ + ArtKSVGRgbaSVPAlphaData *data = (ArtKSVGRgbaSVPAlphaData *)callback_data; + art_u8 *linebuf; + int run_x0, run_x1; + art_u32 running_sum = start; + int x0, x1; + int k; + art_u8 r, g, b; + art_u32 rgba; + int *alphatab; + int alpha; + + linebuf = data->buf; + x0 = data->x0; + x1 = data->x1; + + r = data->r; + g = data->g; + b = data->b; + rgba = data->rgba; + alphatab = data->alphatab; + + if (n_steps > 0) + { + run_x1 = steps[0].x; + if (run_x1 > x0) + { + alpha = running_sum >> 16; + if (alpha) + { + if (alpha >= 255) + art_ksvg_rgba_fill_run (linebuf, + r, g, b, + run_x1 - x0); + else + art_ksvg_rgba_run_alpha (linebuf, + r, g, b, alphatab[alpha], + run_x1 - x0); + } + } + + for (k = 0; k < n_steps - 1; k++) + { + running_sum += steps[k].delta; + run_x0 = run_x1; + run_x1 = steps[k + 1].x; + if (run_x1 > run_x0) + { + alpha = running_sum >> 16; + if (alpha) + { + if (alpha >= 255) + art_ksvg_rgba_fill_run (linebuf + (run_x0 - x0) * 4, + r, g, b, + run_x1 - run_x0); + else + art_ksvg_rgba_run_alpha (linebuf + (run_x0 - x0) * 4, + r, g, b, alphatab[alpha], + run_x1 - run_x0); + } + } + } + running_sum += steps[k].delta; + if (x1 > run_x1) + { + alpha = running_sum >> 16; + if (alpha) + { + if (alpha >= 255) + art_ksvg_rgba_fill_run (linebuf + (run_x1 - x0) * 4, + r, g, b, + x1 - run_x1); + else + art_ksvg_rgba_run_alpha (linebuf + (run_x1 - x0) * 4, + r, g, b, alphatab[alpha], + x1 - run_x1); + } + } + } + else + { + alpha = running_sum >> 16; + if (alpha) + { + if (alpha >= 255) + art_ksvg_rgba_fill_run (linebuf, + r, g, b, + x1 - x0); + else + art_ksvg_rgba_run_alpha (linebuf, + r, g, b, alphatab[alpha], + x1 - x0); + } + } + data->buf += data->rowstride; +} + +static void +art_ksvg_rgba_svp_alpha_mask_callback(void *callback_data, int y, + int start, ArtSVPRenderAAStep *steps, int n_steps) +{ + ArtKSVGRgbaSVPAlphaData *data = (ArtKSVGRgbaSVPAlphaData *)callback_data; + art_u8 *linebuf; + int run_x0, run_x1; + art_u32 running_sum = start; + int x0, x1; + int k; + art_u8 r, g, b; + int *alphatab; + int alpha; + art_u8 *maskbuf; + + linebuf = data->buf; + x0 = data->x0; + x1 = data->x1; + + r = data->r; + g = data->g; + b = data->b; + alphatab = data->alphatab; + + maskbuf = data->mask + (y - data->y0) * (data->x1 - data->x0); + + if(n_steps > 0) + { + run_x1 = steps[0].x; + if(run_x1 > x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + art_ksvg_rgba_mask_run_alpha (linebuf, maskbuf, + r, g, b, alphatab[alpha], + run_x1 - x0); + } + + for(k = 0; k < n_steps - 1; k++) + { + running_sum += steps[k].delta; + run_x0 = run_x1; + run_x1 = steps[k + 1].x; + if(run_x1 > run_x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + art_ksvg_rgba_mask_run_alpha (linebuf + (run_x0 - x0) * 4, maskbuf + (run_x0 - x0), + r, g, b, alphatab[alpha], + run_x1 - run_x0); + } + } + running_sum += steps[k].delta; + if(x1 > run_x1) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + art_ksvg_rgba_mask_run_alpha (linebuf + (run_x1 - x0) * 4, maskbuf + (run_x1 - x0) , + r, g, b, alphatab[alpha], + x1 - run_x1); + } + } + else + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + art_ksvg_rgba_mask_run_alpha (linebuf, maskbuf, + r, g, b, alphatab[alpha], + x1 - x0); + } + + data->buf += data->rowstride; +} + +/** + * art_rgb_svp_alpha: Alpha-composite sorted vector path over RGB buffer. + * @svp: The source sorted vector path. + * @x0: Left coordinate of destination rectangle. + * @y0: Top coordinate of destination rectangle. + * @x1: Right coordinate of destination rectangle. + * @y1: Bottom coordinate of destination rectangle. + * @rgba: Color in 0xRRGGBBAA format. + * @buf: Destination RGB buffer. + * @rowstride: Rowstride of @buf buffer. + * @alphagamma: #ArtAlphaGamma for gamma-correcting the compositing. + * + * Renders the shape specified with @svp over the @buf RGB buffer. + * @x1 - @x0 specifies the width, and @y1 - @y0 specifies the height, + * of the rectangle rendered. The new pixels are stored starting at + * the first byte of @buf. Thus, the @x0 and @y0 parameters specify + * an offset within @svp, and may be tweaked as a way of doing + * integer-pixel translations without fiddling with @svp itself. + * + * The @rgba argument specifies the color for the rendering. Pixels of + * entirely 0 winding number are left untouched. Pixels of entirely + * 1 winding number have the color @rgba composited over them (ie, + * are replaced by the red, green, blue components of @rgba if the alpha + * component is 0xff). Pixels of intermediate coverage are interpolated + * according to the rule in @alphagamma, or default to linear if + * @alphagamma is NULL. + **/ +void +art_ksvg_rgba_svp_alpha(const ArtSVP *svp, + int x0, int y0, int x1, int y1, + art_u32 rgba, + art_u8 *buf, int rowstride, + ArtAlphaGamma *alphagamma, + art_u8 *mask) +{ + ArtKSVGRgbaSVPAlphaData data; + int r, g, b; + int i; + int a, da; + int alpha; + + r = (rgba >> 24) & 0xff; + g = (rgba >> 16) & 0xff; + b = (rgba >> 8) & 0xff; + alpha = rgba & 0xff; + + data.r = r; + data.g = g; + data.b = b; + data.alpha = alpha; + data.rgba = rgba; + data.mask = mask; + + a = 0x8000; + da = (alpha * 66051 + 0x80) >> 8; /* 66051 equals 2 ^ 32 / (255 * 255) */ + + for (i = 0; i < 256; i++) + { + data.alphatab[i] = a >> 16; + a += da; + } + + data.buf = buf; + data.rowstride = rowstride; + data.x0 = x0; + data.x1 = x1; + data.y0 = y0; + + if(mask) + art_svp_render_aa (svp, x0, y0, x1, y1, art_ksvg_rgba_svp_alpha_mask_callback, &data); + else + { + if (alpha == 255) + art_svp_render_aa (svp, x0, y0, x1, y1, art_ksvg_rgba_svp_alpha_opaque_callback, &data); + else + art_svp_render_aa (svp, x0, y0, x1, y1, art_ksvg_rgba_svp_alpha_callback, &data); + } +} + +/* RGB renderers */ + +static void +art_ksvg_rgb_mask_run_alpha(art_u8 *buf, art_u8 *mask, art_u8 r, art_u8 g, art_u8 b, int alpha, int n) +{ + int i; + int v; + int am; + int tmp; + + if(alpha > 255) + alpha = 255; + + for(i = 0; i < n; i++) + { + am = (alpha * *mask++) + 0x80; + am = (am + (am >> 8)) >> 8; + + v = *buf; + tmp = (r - v) * am + 0x80; + *buf++ = v + ((tmp + (tmp >> 8)) >> 8); + + v = *buf; + tmp = (g - v) * am + 0x80; + *buf++ = v + ((tmp + (tmp >> 8)) >> 8); + + v = *buf; + tmp = (b - v) * am + 0x80; + *buf++ = v + ((tmp + (tmp >> 8)) >> 8); + } +} + +static void +art_ksvg_rgb_svp_alpha_mask_callback(void *callback_data, int y, + int start, ArtSVPRenderAAStep *steps, int n_steps) +{ + ArtKSVGRgbaSVPAlphaData *data = (ArtKSVGRgbaSVPAlphaData *)callback_data; + art_u8 *linebuf; + int run_x0, run_x1; + art_u32 running_sum = start; + int x0, x1; + int k; + art_u8 r, g, b; + int *alphatab; + int alpha; + art_u8 *maskbuf; + + linebuf = data->buf; + x0 = data->x0; + x1 = data->x1; + + r = data->r; + g = data->g; + b = data->b; + alphatab = data->alphatab; + + maskbuf = data->mask + (y - data->y0) * (data->x1 - data->x0); + + if(n_steps > 0) + { + run_x1 = steps[0].x; + if(run_x1 > x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + art_ksvg_rgb_mask_run_alpha (linebuf, maskbuf, + r, g, b, alphatab[alpha], + run_x1 - x0); + } + + for(k = 0; k < n_steps - 1; k++) + { + running_sum += steps[k].delta; + run_x0 = run_x1; + run_x1 = steps[k + 1].x; + if(run_x1 > run_x0) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + art_ksvg_rgb_mask_run_alpha (linebuf + (run_x0 - x0) * 3, maskbuf + (run_x0 - x0), + r, g, b, alphatab[alpha], + run_x1 - run_x0); + } + } + running_sum += steps[k].delta; + if(x1 > run_x1) + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + art_ksvg_rgb_mask_run_alpha (linebuf + (run_x1 - x0) * 3, maskbuf + (run_x1 - x0) , + r, g, b, alphatab[alpha], + x1 - run_x1); + } + } + else + { + alpha = (running_sum >> 16) & 0xff; + if(alpha) + art_ksvg_rgb_mask_run_alpha (linebuf, maskbuf, + r, g, b, alphatab[alpha], + x1 - x0); + } + + data->buf += data->rowstride; +} + +/** + * art_rgb_svp_alpha: Alpha-composite sorted vector path over RGB buffer. + * @svp: The source sorted vector path. + * @x0: Left coordinate of destination rectangle. + * @y0: Top coordinate of destination rectangle. + * @x1: Right coordinate of destination rectangle. + * @y1: Bottom coordinate of destination rectangle. + * @rgba: Color in 0xRRGGBBAA format. + * @buf: Destination RGB buffer. + * @rowstride: Rowstride of @buf buffer. + * @alphagamma: #ArtAlphaGamma for gamma-correcting the compositing. + * + * Renders the shape specified with @svp over the @buf RGB buffer. + * @x1 - @x0 specifies the width, and @y1 - @y0 specifies the height, + * of the rectangle rendered. The new pixels are stored starting at + * the first byte of @buf. Thus, the @x0 and @y0 parameters specify + * an offset within @svp, and may be tweaked as a way of doing + * integer-pixel translations without fiddling with @svp itself. + * + * The @rgba argument specifies the color for the rendering. Pixels of + * entirely 0 winding number are left untouched. Pixels of entirely + * 1 winding number have the color @rgba composited over them (ie, + * are replaced by the red, green, blue components of @rgba if the alpha + * component is 0xff). Pixels of intermediate coverage are interpolated + * according to the rule in @alphagamma, or default to linear if + * @alphagamma is NULL. + **/ +void +art_ksvg_rgb_svp_alpha_mask(const ArtSVP *svp, + int x0, int y0, int x1, int y1, + art_u32 rgba, + art_u8 *buf, int rowstride, + ArtAlphaGamma *alphagamma, + art_u8 *mask) +{ + ArtKSVGRgbaSVPAlphaData data; + int r, g, b, alpha; + int i; + int a, da; + + r = rgba >> 24; + g = (rgba >> 16) & 0xff; + b = (rgba >> 8) & 0xff; + alpha = rgba & 0xff; + + data.r = r; + data.g = g; + data.b = b; + data.alpha = alpha; + data.mask = mask; + + a = 0x8000; + da = (alpha * 66051 + 0x80) >> 8; /* 66051 equals 2 ^ 32 / (255 * 255) */ + + for(i = 0; i < 256; i++) + { + data.alphatab[i] = a >> 16; + a += da; + } + + data.buf = buf; + data.rowstride = rowstride; + data.x0 = x0; + data.x1 = x1; + data.y0 = y0; + + art_svp_render_aa(svp, x0, y0, x1, y1, art_ksvg_rgb_svp_alpha_mask_callback, &data); +} + diff --git a/ksvg/impl/libs/art_support/art_rgba_svp.h b/ksvg/impl/libs/art_support/art_rgba_svp.h new file mode 100644 index 00000000..b59096d4 --- /dev/null +++ b/ksvg/impl/libs/art_support/art_rgba_svp.h @@ -0,0 +1,57 @@ +/* Libart_LGPL - library of basic graphic primitives + * Copyright (C) 1998 Raph Levien + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#ifndef __ART_RGBA_SVP_H__ +#define __ART_RGBA_SVP_H__ + +/* Render a sorted vector path into an RGB buffer. */ + +#ifdef LIBART_COMPILATION +#include "art_alphagamma.h" +#include "art_svp.h" +#else +#include <libart_lgpl/art_alphagamma.h> +#include <libart_lgpl/art_svp.h> +#endif + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +void +art_ksvg_rgba_svp_alpha(const ArtSVP *svp, + int x0, int y0, int x1, int y1, + art_u32 rgba, + art_u8 *buf, int rowstride, + ArtAlphaGamma *alphagamma, + art_u8 *mask); + +void +art_ksvg_rgb_svp_alpha_mask(const ArtSVP *svp, + int x0, int y0, int x1, int y1, + art_u32 rgba, + art_u8 *buf, int rowstride, + ArtAlphaGamma *alphagamma, + art_u8 *mask); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* __ART_RGB_SVP_H__ */ diff --git a/ksvg/impl/libs/libtext2path/AUTHORS b/ksvg/impl/libs/libtext2path/AUTHORS new file mode 100644 index 00000000..efa499dd --- /dev/null +++ b/ksvg/impl/libs/libtext2path/AUTHORS @@ -0,0 +1 @@ +Nikolas Zimmermann <[email protected]> diff --git a/ksvg/impl/libs/libtext2path/COPYING b/ksvg/impl/libs/libtext2path/COPYING new file mode 100644 index 00000000..0b84a43f --- /dev/null +++ b/ksvg/impl/libs/libtext2path/COPYING @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + Appendix: How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + <one line to give the program's name and a brief idea of what it does.> + Copyright (C) 19yy <name of author> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) 19yy name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + <signature of Ty Coon>, 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/ksvg/impl/libs/libtext2path/ChangeLog b/ksvg/impl/libs/libtext2path/ChangeLog new file mode 100644 index 00000000..fad2a19b --- /dev/null +++ b/ksvg/impl/libs/libtext2path/ChangeLog @@ -0,0 +1,2 @@ +Fri Jul 25 08:30:43 CEST 2003 - Nikolas Zimmermann <[email protected]> + o Initial Creation diff --git a/ksvg/impl/libs/libtext2path/INSTALL b/ksvg/impl/libs/libtext2path/INSTALL new file mode 100644 index 00000000..28fadaa7 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/INSTALL @@ -0,0 +1,181 @@ +Basic Installation +================== + + These are generic installation instructions. + + The `configure' shell script attempts to guess correct values for +various system-dependent variables used during compilation. It uses +those values to create a `Makefile' in each directory of the package. +It may also create one or more `.h' files containing system-dependent +definitions. Finally, it creates a shell script `config.status' that +you can run in the future to recreate the current configuration, a file +`config.cache' that saves the results of its tests to speed up +reconfiguring, and a file `config.log' containing compiler output +(useful mainly for debugging `configure'). + + If you need to do unusual things to compile the package, please try +to figure out how `configure' could check whether to do them, and mail +diffs or instructions to the address given in the `README' so they can +be considered for the next release. If at some point `config.cache' +contains results you don't want to keep, you may remove or edit it. + + The file `configure.in' is used to create `configure' by a program +called `autoconf'. You only need `configure.in' if you want to change +it or regenerate `configure' using a newer version of `autoconf'. + +The simplest way to compile this package is: + + 1. `cd' to the directory containing the package's source code and type + `./configure' to configure the package for your system. If you're + using `csh' on an old version of System V, you might need to type + `sh ./configure' instead to prevent `csh' from trying to execute + `configure' itself. + + Running `configure' takes awhile. While running, it prints some + messages telling which features it is checking for. + + 2. Type `make' to compile the package. + + 3. Optionally, type `make check' to run any self-tests that come with + the package. + + 4. Type `make install' to install the programs and any data files and + documentation. + + 5. You can remove the program binaries and object files from the + source code directory by typing `make clean'. To also remove the + files that `configure' created (so you can compile the package for + a different kind of computer), type `make distclean'. There is + also a `make maintainer-clean' target, but that is intended mainly + for the package's developers. If you use it, you may have to get + all sorts of other programs in order to regenerate files that came + with the distribution. + +Compilers and Options +===================== + + Some systems require unusual options for compilation or linking that +the `configure' script does not know about. You can give `configure' +initial values for variables by setting them in the environment. Using +a Bourne-compatible shell, you can do that on the command line like +this: + CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure + +Or on systems that have the `env' program, you can do it like this: + env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure + +Compiling For Multiple Architectures +==================================== + + You can compile the package for more than one kind of computer at the +same time, by placing the object files for each architecture in their +own directory. To do this, you must use a version of `make' that +supports the `VPATH' variable, such as GNU `make'. `cd' to the +directory where you want the object files and executables to go and run +the `configure' script. `configure' automatically checks for the +source code in the directory that `configure' is in and in `..'. + + If you have to use a `make' that does not supports the `VPATH' +variable, you have to compile the package for one architecture at a time +in the source code directory. After you have installed the package for +one architecture, use `make distclean' before reconfiguring for another +architecture. + +Installation Names +================== + + By default, `make install' will install the package's files in +`/usr/local/bin', `/usr/local/man', etc. You can specify an +installation prefix other than `/usr/local' by giving `configure' the +option `--prefix=PATH'. + + You can specify separate installation prefixes for +architecture-specific files and architecture-independent files. If you +give `configure' the option `--exec-prefix=PATH', the package will use +PATH as the prefix for installing programs and libraries. +Documentation and other data files will still use the regular prefix. + + In addition, if you use an unusual directory layout you can give +options like `--bindir=PATH' to specify different values for particular +kinds of files. Run `configure --help' for a list of the directories +you can set and what kinds of files go in them. + + If the package supports it, you can cause programs to be installed +with an extra prefix or suffix on their names by giving `configure' the +option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. + +Optional Features +================= + + Some packages pay attention to `--enable-FEATURE' options to +`configure', where FEATURE indicates an optional part of the package. +They may also pay attention to `--with-PACKAGE' options, where PACKAGE +is something like `gnu-as' or `x' (for the X Window System). The +`README' should mention any `--enable-' and `--with-' options that the +package recognizes. + + For packages that use the X Window System, `configure' can usually +find the X include and library files automatically, but if it doesn't, +you can use the `configure' options `--x-includes=DIR' and +`--x-libraries=DIR' to specify their locations. + +Specifying the System Type +========================== + + There may be some features `configure' can not figure out +automatically, but needs to determine by the type of host the package +will run on. Usually `configure' can figure that out, but if it prints +a message saying it can not guess the host type, give it the +`--host=TYPE' option. TYPE can either be a short name for the system +type, such as `sun4', or a canonical name with three fields: + CPU-COMPANY-SYSTEM + +See the file `config.sub' for the possible values of each field. If +`config.sub' isn't included in this package, then this package doesn't +need to know the host type. + + If you are building compiler tools for cross-compiling, you can also +use the `--target=TYPE' option to select the type of system they will +produce code for and the `--build=TYPE' option to select the type of +system on which you are compiling the package. + +Sharing Defaults +================ + + If you want to set default values for `configure' scripts to share, +you can create a site shell script called `config.site' that gives +default values for variables like `CC', `cache_file', and `prefix'. +`configure' looks for `PREFIX/share/config.site' if it exists, then +`PREFIX/etc/config.site' if it exists. Or, you can set the +`CONFIG_SITE' environment variable to the location of the site script. +A warning: not all `configure' scripts look for a site script. + +Operation Controls +================== + + `configure' recognizes the following options to control how it +operates. + +`--cache-file=FILE' + Use and save the results of the tests in FILE instead of + `./config.cache'. Set FILE to `/dev/null' to disable caching, for + debugging `configure'. + +`--help' + Print a summary of the options to `configure', and exit. + +`--quiet' +`--silent' +`-q' + Do not print messages saying which checks are being made. + +`--srcdir=DIR' + Look for the package's source code in directory DIR. Usually + `configure' can determine that directory automatically. + +`--version' + Print the version of Autoconf used to generate the `configure' + script, and exit. + +`configure' also accepts some other, not widely useful, options. + diff --git a/ksvg/impl/libs/libtext2path/Makefile.am b/ksvg/impl/libs/libtext2path/Makefile.am new file mode 100644 index 00000000..c7f2f390 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/Makefile.am @@ -0,0 +1,7 @@ +SUBDIRS = src +DIST_SUBDIRS = src + +#pkgconfigdir = $(libdir)/pkgconfig +#kgconfig_DATA = libtext2path-0.1.pc + +#EXTRA_DIST = autogen.sh diff --git a/ksvg/impl/libs/libtext2path/NEWS b/ksvg/impl/libs/libtext2path/NEWS new file mode 100644 index 00000000..8b137891 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/NEWS @@ -0,0 +1 @@ + diff --git a/ksvg/impl/libs/libtext2path/README b/ksvg/impl/libs/libtext2path/README new file mode 100644 index 00000000..b9493b88 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/README @@ -0,0 +1,4 @@ +libtext2path v0.1 +Nikolas Zimmermann <[email protected]> +---------------------------------------------------------------------- +TODO: Write documentation! :) diff --git a/ksvg/impl/libs/libtext2path/VERSION b/ksvg/impl/libs/libtext2path/VERSION new file mode 100644 index 00000000..6c2cb464 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/VERSION @@ -0,0 +1 @@ +libtext2path-0.1 diff --git a/ksvg/impl/libs/libtext2path/configure.in.in b/ksvg/impl/libs/libtext2path/configure.in.in new file mode 100644 index 00000000..2198ab52 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/configure.in.in @@ -0,0 +1,41 @@ +#AC_INIT(src/Converter.h) +#AM_CONFIG_HEADER(config.h) + +dnl ----------------------------------------------- +dnl Package name and version number (user defined) +dnl ----------------------------------------------- +GENERIC_LIBRARY_NAME=libtext2path-0.1 + +# release versioning +GENERIC_MAJOR_VERSION=0 +GENERIC_MINOR_VERSION=1 +GENERIC_MICRO_VERSION=0 + +# API version (often = GENERIC_MAJOR_VERSION.GENERIC_MINOR_VERSION) +GENERIC_API_VERSION=0.1 +AC_SUBST(GENERIC_API_VERSION) + +#shared library versioning +GENERIC_LIBRARY_VERSION=0:1:0 + +dnl -------------------------------- +dnl Package name and version number +dnl -------------------------------- +AC_SUBST(GENERIC_LIBRARY_VERSION) + +AC_SUBST(GENERIC_LIBRARY_NAME) + +GENERIC_VERSION=$GENERIC_MAJOR_VERSION.$GENERIC_MINOR_VERSION.$GENERIC_MICRO_VERSION +GENERIC_RELEASE=$GENERIC_MAJOR_VERSION.$GENERIC_MINOR_VERSION +AC_SUBST(GENERIC_RELEASE) +AC_SUBST(GENERIC_VERSION) + + +dnl ----------------------------------------------- +dnl Checks for programs. +dnl ----------------------------------------------- + +dnl Check for fontconfig +# PKG_CHECK_MODULES(DEPS, fontconfig >= 2.2.0) +#AC_SUBST(DEPS_CFLAGS) +#AC_SUBST(DEPS_LIBS) diff --git a/ksvg/impl/libs/libtext2path/libtext2path.lsm b/ksvg/impl/libs/libtext2path/libtext2path.lsm new file mode 100644 index 00000000..7407a0ff --- /dev/null +++ b/ksvg/impl/libs/libtext2path/libtext2path.lsm @@ -0,0 +1,16 @@ +Begin4 +Title: libtext2path -- Some description +Version: 0.1 +Entered-date: YYYY-MM-DD +Description: +Keywords: KDE3 Qt +Author: Nikolas Zimmermann <[email protected]> +Maintained-by: Nikolas Zimmermann <[email protected]> +Home-page: +Alternate-site: +Primary-site: ftp://ftp.kde.org/pub/kde/unstable/apps/utils + xxxxxx libtext2path-0.1.tar.gz + xxx libtext2path-0.1.lsm +Platform: Linux. Needs KDE 2.x +Copying-policy: GPL +End diff --git a/ksvg/impl/libs/libtext2path/libtext2path.pc.in b/ksvg/impl/libs/libtext2path/libtext2path.pc.in new file mode 100644 index 00000000..1d4b4210 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/libtext2path.pc.in @@ -0,0 +1,11 @@ +prefix=@prefix@ +exec_prefix=@exec_prefix@ +libdir=@libdir@ +includedir=@includedir@ + +Name: libtext2path +Description: Converts FreeType glyphs to bezier paths +Version: @VERSION@ +Libs: -L${libdir} -ltext2path +Cflags: -I${includedir}/@GENERIC_LIBRARY_NAME@ -I${libdir}/@GENERIC_LIBRARY_NAME@/include + diff --git a/ksvg/impl/libs/libtext2path/libtext2path.spec b/ksvg/impl/libs/libtext2path/libtext2path.spec new file mode 100644 index 00000000..e0c217bd --- /dev/null +++ b/ksvg/impl/libs/libtext2path/libtext2path.spec @@ -0,0 +1,41 @@ +%define distversion %( perl -e 'Creating /home/nikoz/Projects/libtext2path/libtext2path.spec...=\<\>;/(\d+)\.(\d)\.?(\d)?/; print "".(||0)' /etc/*-release) +Name: libtext2path +Summary: libtext2path -- Some description +Version: 0.1 +Release: %{_vendor}_%{distversion} +Copyright: GPL +Group: X11/KDE/Utilities +Source: ftp://ftp.kde.org/pub/kde/unstable/apps/utils/%{name}-%{version}.tar.gz +Packager: Nikolas Zimmermann <[email protected]> +BuildRoot: /tmp/%{name}-%{version} +Prefix: /usr/kde/cvs + +%description +A long description + +%prep +rm -rf $RPM_BUILD_ROOT +%setup -n %{name}-%{version} +CFLAGS="" CXXFLAGS="" ./configure --disable-debug --enable-final --prefix=%{prefix} + +%build +# Setup for parallel builds +numprocs=1 +if [ "" = "0" ]; then + numprocs=1 +fi + +make -j + +%install +make install-strip DESTDIR=$RPM_BUILD_ROOT + +cd +find . -type d | sed '1,2d;s,^\.,\%attr(-\,root\,root) \%dir ,' > /%{name}-master.list +find . -type f -o -type l | sed 's|^\.||' >> $RPM_BUILD_DIR/%{name}-master.list + +%clean +rm -rf $RPM_BUILD_DIR/%{name}-%{version} +rm -rf $RPM_BUILD_DIR/-master.list + +%files -f $RPM_BUILD_DIR/%{name}-master.list diff --git a/ksvg/impl/libs/libtext2path/src/Affine.cpp b/ksvg/impl/libs/libtext2path/src/Affine.cpp new file mode 100644 index 00000000..d06b53bc --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Affine.cpp @@ -0,0 +1,174 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include <math.h> + +#include "Point.h" +#include "Affine.h" + +using namespace T2P; + +Affine::Affine() +{ + m_affine[0] = 1.0; + m_affine[1] = 0.0; + m_affine[2] = 0.0; + m_affine[3] = 1.0; + m_affine[4] = 0.0; + m_affine[5] = 0.0; +} + +Affine::Affine(double affine[6]) +{ + for(int i = 0; i < 6; i++) + m_affine[i] = affine[i]; +} + +Affine::Affine(const Affine &other) +{ + (*this) = other; +} + +Affine::Affine(double m11, double m12, double m21, double m22, double dx, double dy) +{ + m_affine[0] = m11; m_affine[1] = m12; m_affine[2] = m21; + m_affine[3] = m22; m_affine[4] = dx; m_affine[5] = dy; +} + +Affine::~Affine() +{ +} + +Affine &Affine::operator*=(Affine &other) +{ + double d0 = m11() * other.m11() + m12() * other.m21(); + double d1 = m11() * other.m12() + m12() * other.m22(); + double d2 = m21() * other.m11() + m22() * other.m21(); + double d3 = m21() * other.m12() + m22() * other.m22(); + double d4 = dx() * other.m11() + dy() * other.m21() + other.dx(); + double d5 = dx() * other.m12() + dy() * other.m22() + other.dy(); + + m_affine[0] = d0; m_affine[1] = d1; m_affine[2] = d2; + m_affine[3] = d3; m_affine[4] = d4; m_affine[5] = d5; + + return *this; +} + +Affine &Affine::operator=(const Affine &other) +{ + for(int i = 0; i < 6; i++) + m_affine[i] = other.m_affine[i]; + + return *this; +} + +double &Affine::m11() +{ + return m_affine[0]; +} + +double &Affine::m12() +{ + return m_affine[1]; +} + +double &Affine::m21() +{ + return m_affine[2]; +} + +double &Affine::m22() +{ + return m_affine[3]; +} + +double &Affine::dx() +{ + return m_affine[4]; +} + +double &Affine::dy() +{ + return m_affine[5]; +} + +void Affine::scale(double s) +{ + scale(s, s); +} + +void Affine::scale(double sx, double sy) +{ + m_affine[0] = sx; + m_affine[3] = sy; +} + +void Affine::translate(const Point &point) +{ + m_affine[4] += point.x(); + m_affine[5] += point.y(); +} + +void Affine::translate(double tx, double ty) +{ + m_affine[4] += tx * m_affine[0] + ty * m_affine[2]; + m_affine[5] += tx * m_affine[1] + ty * m_affine[3]; +} + +void Affine::rotate(double angle) +{ + double sina = sin(angle); + double cosa = cos(angle); + + double tm11 = cosa * m_affine[0] + sina * m_affine[2]; + double tm12 = cosa * m_affine[1] + sina * m_affine[3]; + double tm21 = -sina * m_affine[0] + cosa * m_affine[2]; + double tm22 = -sina * m_affine[1] + cosa * m_affine[3]; + + m_affine[0] = tm11; m_affine[1] = tm12; + m_affine[2] = tm21; m_affine[3] = tm22; +} + +void Affine::rotateAround(double angle, const Point &point) +{ + translate(point); + rotate(angle); + translate(point.invert()); +} + +void Affine::rotateAround(double angle, double cx, double cy) +{ + translate(-cx, -cy); + rotate(angle); + translate(cx, cy); +} + +Point Affine::mapPoint(const Point &p) const +{ + return Point(p.x() * m_affine[0] + p.y() * m_affine[2] + m_affine[4], + p.x() * m_affine[1] + p.y() * m_affine[3] + m_affine[5]); +} + +double *Affine::data() +{ + return m_affine; +} + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/Affine.h b/ksvg/impl/libs/libtext2path/src/Affine.h new file mode 100644 index 00000000..c0f11e9b --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Affine.h @@ -0,0 +1,67 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef T2P_AFFINE_H +#define T2P_AFFINE_H + +namespace T2P +{ + class Point; + class Affine + { + public: + Affine(); + Affine(double affine[6]); + Affine(const Affine &other); + Affine(double m11, double m12, double m21, double m22, double dx, double dy); + ~Affine(); + + Affine &operator*=(Affine &other); + Affine &operator=(const Affine &other); + + double &m11(); + double &m12(); + double &m21(); + double &m22(); + double &dx(); + double &dy(); + + void scale(double s); + void scale(double sx, double sy); + void translate(const Point &point); // Assumes point is already transformed + void translate(double tx, double ty); + + void rotate(double angle); + void rotateAround(double angle, const Point &point); // Assumes point is already transformed + void rotateAround(double angle, double cx, double cy); + + Point mapPoint(const Point &p) const; + + // Internal + double *data(); + + private: + double m_affine[6]; + }; +} + +#endif + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/BezierPath.h b/ksvg/impl/libs/libtext2path/src/BezierPath.h new file mode 100644 index 00000000..1c357abd --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/BezierPath.h @@ -0,0 +1,56 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef T2P_BEZIERPATH_H +#define T2P_BEZIERPATH_H + +#include <list> + +namespace T2P +{ + class Point; + class BezierPath + { + public: + BezierPath() { } + virtual ~BezierPath() { } + + /** + * Calculates the arclength from p0 to the point parametrized by 0 <= t <= 1. + */ + virtual double length(double t = 1.0) = 0; + + /** + * Calculates the point, the tangent vector and the normal vector for + * 0 <= t <= 1. The tangent vector and the normal vector are + * normalized (length=1). + */ + virtual void pointTangentNormalAt(double t, Point *p = 0, Point *tn = 0, Point *n = 0) = 0; + + /** + * Calculates the axis-aligned bounding box. + */ + virtual void boundingBox(Point *topLeft, Point *bottomRight) = 0; + }; +} + +#endif + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/Cache.h b/ksvg/impl/libs/libtext2path/src/Cache.h new file mode 100644 index 00000000..a85fdf92 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Cache.h @@ -0,0 +1,156 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef T2P_CACHE_H +#define T2P_CACHE_H + +#include <map> +#include <string> +#include <vector> +#include <iostream> + +#include "myboost/shared_ptr.hpp" + +namespace T2P +{ + class CacheElement + { + public: + CacheElement(std::string key) : m_key(key), m_usage(0) { } + ~CacheElement() { } + + std::string key() const { return m_key; } + int usage() const { return m_usage; } + + void incUsage() { m_usage++; } + + private: + std::string m_key; + int m_usage; + }; + + template<typename T> + class Cache + { + public: + typedef myboost::shared_ptr<T> SharedT; + + Cache(int maxSize = 10) : m_size(0), m_maxSize(maxSize) { } + ~Cache() { clear(); } + + // Number of elements in cache + int size() const { return m_size; } + + // Maximum number of elements in cache + int maxSize() const { return m_maxSize; } + + // Add new entry + void insert(const std::string &key, SharedT &value) + { + // TODO: Add real LRU logic, now i will just delete the less + // used item when inserting a new item would exceed maxSize + if(m_size == m_maxSize) + { + // Find less used item + typename std::map<SharedT, CacheElement *>::const_iterator it = m_cacheMap.begin(); + int usage = (*it).second->usage(); std::string keyUsage = (*it).second->key(); + for(it++; it != m_cacheMap.end(); ++it) + { + int curUsage = (*it).second->usage(); + if(curUsage < usage) + { + usage = curUsage; + keyUsage = (*it).second->key(); + } + } + +// std::cout << "[CACHE] Removing less used element with key: " << keyUsage << " (Used " << usage << " times!)" << std::endl; + remove(keyUsage); + } + + m_size++; + m_entries.push_back(value); + m_cacheMap[value] = new CacheElement(key); + } + + // Remove single entry + void remove(const std::string &key) + { + for(typename std::vector<SharedT>::iterator it = m_entries.begin(); it != m_entries.end(); ++it) + { + SharedT cur = *it; + if(m_cacheMap[cur]->key() == key) + { + m_size--; + + typename std::map<SharedT, CacheElement *>::iterator cacheElement = m_cacheMap.find(cur); + m_cacheMap.erase(cacheElement); + delete cacheElement->second; + m_entries.erase(it); // Only valid to write because we don't go on here! + break; // Otherwhise the iterators _may_ be invalid! + } + } + } + + // Remove all entries + void clear() + { + m_size = 0; + m_entries.clear(); + m_cacheMap.clear(); + } + + // Lookup entry + SharedT find(const std::string &key) + { + for(typename std::vector<SharedT>::const_iterator it = m_entries.begin(); it != m_entries.end(); ++it) + { + SharedT cur = *it; + if(m_cacheMap[cur]->key() == key) + { + m_cacheMap[cur]->incUsage(); + return cur; + } + } + + return SharedT(); + } + + void dump() + { + std::cout << "[CACHE] " << size() << " of " << maxSize() << " Objects in the cache." << std::endl; + + for(typename std::vector<SharedT>::iterator it = m_entries.begin(); it != m_entries.end(); ++it) + { + SharedT cur = *it; + std::cout << "[CACHE] - " << m_cacheMap[cur]->key() << " -> " << cur << " (Usage: " << m_cacheMap[cur]->usage() << ")" << std::endl; + } + } + + private: + std::vector<SharedT> m_entries; + std::map<SharedT, CacheElement *> m_cacheMap; + int m_size, m_maxSize; + }; +} + +#endif + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/Converter.cpp b/ksvg/impl/libs/libtext2path/src/Converter.cpp new file mode 100644 index 00000000..7810b417 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Converter.cpp @@ -0,0 +1,505 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include <math.h> + +#include "myboost/shared_ptr.hpp" +#include <fontconfig/fontconfig.h> +#include <fribidi/fribidi.h> +#include <fribidi/fribidi_types.h> + +#include "Font.h" +#include "Glyph.h" +#include "Tools.h" +#include "Rectangle.h" +#include "Converter.h" +#include "QtUnicode.h" +#include "GlyphTracer.h" + +// Macros +#define FT_TRUNC(x) ((x) >> 6) +#define FT_TOFLOAT(x) ((x) * (1.0 / 64.0)) +#define FT_FROMFLOAT(x) ((int) floor ((x) * 64.0 + 0.5)) + +const double deg2rad = 0.017453292519943295769; // pi/180 + +using namespace T2P; + +// Font engine. The core component. +Converter::Converter(GlyphTracer *tracer) : m_glyphTracer(tracer) +{ + m_init = false; + m_kerning = true; + m_library = 0; +} + +Converter::~Converter() +{ + if(m_glyphTracer) + delete m_glyphTracer; + + m_fontCache.clear(); + m_glyphCache.clear(); + + // Close FreeType2 library + if(m_library) + FT_Done_FreeType(m_library); +} + +void Converter::init() +{ + // Initialize FreeType2 + m_init = (FT_Init_FreeType(&m_library) == 0); +} + +bool Converter::ready() +{ + return m_init; +} + +void Converter::setKerning(bool mode) +{ + m_kerning = mode; +} + +// Lookup font in cache or create new font +SharedFont Converter::requestFont(const FontVisualParams *params) +{ + std::string cacheKey = cacheFontKey(params); + SharedFont cached = m_fontCache.find(cacheKey); + + // If not available in cache, create new one and cache it :) + if(cached) + { + delete params; + return cached; + } + else + { + // Create a new Font + SharedFont newFont(new Font(this)); + + // Load the font + if(!newFont->load(params)) + { + delete params; + return SharedFont(); + } + + // Append to cache + m_fontCache.insert(cacheKey, newFont); + return newFont; + } +} + +GlyphAffinePair *Converter::requestGlyph(GlyphRenderParams *params, Rectangle &bbox, Affine &affine, bool onlyLatin) +{ + // 1. Select glyph to have glyphIndex information, + // needed to generate the cache lookup key + selectGlyph(params); + + SharedGlyph cached = m_glyphCache.find(cacheGlyphKey(params)); + + // If not available in cache, render new one and cache it :) + // If we're mixing ie. japanese and latin characters (TTB layout), + // then we also have to re-calculate the glyph again with the appropriate rotation matrix (Niko) + if(!cached || !onlyLatin) + cached = calcGlyph(params, affine, onlyLatin); + + // Correct bezier path by setting up the correct scaling matrix + // and multiplying with the current glyph affine + double fontSize = params->font()->fontParams()->size(); + + T2P::Affine correctAffine; + correctAffine.scale(0.001 * fontSize, -0.001 * fontSize); + correctAffine *= affine; + + // Get bbox information + Point p1(FT_TRUNC(cached->ftBbox()->xMin), FT_TRUNC(cached->ftBbox()->yMin)); + Point p2(FT_TRUNC(cached->ftBbox()->xMax), FT_TRUNC(cached->ftBbox()->yMax)); + + bbox.setA(affine.mapPoint(p1)); + bbox.setB(affine.mapPoint(p2)); + + return new GlyphAffinePair(cached.get(), correctAffine); +} + +void Converter::selectGlyph(GlyphRenderParams *params) +{ + // 1. Select glyph + test if it exists + // | + // |-> if it doesn't exist, replace by a '?' and check if exists + // |-> if it does exist, use it! + params->setGlyphIndex(FT_Get_Char_Index(params->font()->fontFace(), (FT_ULong) params->character())); + + if(params->glyphIndex() == 0) + params->setGlyphIndex(FT_Get_Char_Index(params->font()->fontFace(), '?')); + + // 2. Load glyph into font's glyphSlot, according to the GlyphLayoutParams + int flags = FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING | FT_LOAD_NO_BITMAP; + + // 3. Don't pass FT_LOAD_VERTICAL_LAYOUT on TTB layouts when rendering + // a latin glyph because it needs to be rotated... + if(params->layout()->tb()) + { + Script script; + SCRIPT_FOR_CHAR(script, params->character()) + if(script != Latin || params->layout()->glyphOrientationVertical() == 0) + flags |= FT_LOAD_VERTICAL_LAYOUT; + } + + FT_Error error = FT_Load_Glyph(params->font()->fontFace(), params->glyphIndex(), flags); + if(error) + params->setGlyphIndex(0); +} + +SharedGlyph Converter::calcGlyph(const GlyphRenderParams *params, Affine &affine, bool onlyLatin) +{ + // 2. Apply kerning if needed + if(m_kerning && params->lastGlyph() != 0 && params->glyphIndex() != 0) + { + FT_Vector kerningVector; + double kx, ky; + + FT_Get_Kerning(params->font()->fontFace(), params->lastGlyph(), params->glyphIndex(), ft_kerning_default, &kerningVector); + + kx = FT_TRUNC(kerningVector.x); + ky = FT_TRUNC(kerningVector.y); + + affine.dx() += kx + affine.m21() * ky; + + // Only apply y kerning in TB mode + if(params->layout()->tb()) + affine.dy() += kx + affine.m22() * ky; + } + + // 3. Prepare path tracing + FT_OutlineGlyph ftGlyph; + FT_Get_Glyph(params->font()->fontFace()->glyph, reinterpret_cast<FT_Glyph *>(&ftGlyph)); + + // 3a. Prepare tracing matrix + Affine traceAffine; + traceAffine.scale(1000.0 / params->font()->fontFace()->units_per_EM); + + // 3b. Enable character rotation, if needed + if(params->layout()->tb()) + { + Script script; + SCRIPT_FOR_CHAR(script, params->character()) + if(!onlyLatin && script == Latin) + { + FT_Matrix matrix; + + double angle = deg2rad * params->layout()->glyphOrientationVertical(); + matrix.xx = (FT_Fixed)( cos(angle) * 0x10000L); + matrix.xy = (FT_Fixed)(-sin(angle) * 0x10000L); + matrix.yx = (FT_Fixed)( sin(angle) * 0x10000L); + matrix.yy = (FT_Fixed)( cos(angle) * 0x10000L); + + FT_Glyph_Transform(reinterpret_cast<FT_Glyph>(ftGlyph), &matrix, 0); + } + } + + // 4. Begin path tracing + // - Setup glyphOutlineing glyph + // - Start tracing + // - Close path + FT_Outline *ftOut = &ftGlyph->outline; + + SharedGlyph glyphOutline(new Glyph()); + glyphOutline->setBezierPath(m_glyphTracer->allocBezierPath(ftOut->n_points * 2 + ftOut->n_contours + 1)); + glyphOutline->setAffine(traceAffine); + + FT_Outline_Decompose(ftOut, m_glyphTracer->outlineFuncs(), glyphOutline.get()); + + m_glyphTracer->closePath(glyphOutline.get()); + + // 5. Determine bounding box (aka "cbox") + FT_Glyph_Get_CBox(reinterpret_cast<FT_Glyph>(ftGlyph), ft_glyph_bbox_unscaled, glyphOutline->ftBbox()); + + // 6. Cache glyph! + m_glyphCache.insert(cacheGlyphKey(params), glyphOutline); + + FT_Done_Glyph(reinterpret_cast<FT_Glyph>(ftGlyph)); + + return glyphOutline; +} + +GlyphSet *Converter::calcString(Font *font, const unsigned short *text, unsigned int length, Affine &affine, const GlyphLayoutParams *params, BezierPath *bpath) +{ + unsigned short *bidi = 0; + + // 0. Apply BiDi Rules + if(params->useBidi()) + { + FriBidiCharType baseDir = FRIBIDI_TYPE_N; + FriBidiChar *unicodeIn = new FriBidiChar[length + 1]; + FriBidiChar *unicodeOut = new FriBidiChar[length + 1]; + bidi = new unsigned short[length + 1]; + + for(unsigned int i = 0; i < length; i++) + unicodeIn[i] = text[i]; + + fribidi_log2vis(unicodeIn, length, &baseDir, unicodeOut, 0, 0, 0); + + for(unsigned int i = 0; i < length; i++) + bidi[i] = unicodeOut[i]; + + bidi[length] = 0; + delete []unicodeIn; + delete []unicodeOut; + } + else + bidi = const_cast<unsigned short *>(text); + + // Detect character rotation if needed, + // probably working in 0.1% of the cases :/ + Script script; + bool onlyLatin = true; + for(unsigned int i = 0; i < length; i++) + { + SCRIPT_FOR_CHAR(script, bidi[i]) + if(script != Latin) + { + onlyLatin = false; + break; + } + } + + // 1. Set initial font size + double fontSize = font->fontParams()->size(); + FT_Set_Char_Size(font->fontFace(), FT_FROMFLOAT(fontSize), FT_FROMFLOAT(fontSize), 0, 0); + + // 2. Compute positioning metrics + // - See http://www.freetype.org/freetype2/docs/tutorial/stepX.html (X = 1 or 2) + int pixelHeight = (int) (FT_TOFLOAT(font->fontFace()->size->metrics.ascender - font->fontFace()->size->metrics.descender) * affine.m22()); + int pixelBaseline = (int) (FT_TOFLOAT(font->fontFace()->size->metrics.ascender) * affine.m22()); + int pixelUnderlinePosition = (int) (((font->fontFace()->ascender - font->fontFace()->underline_position - font->fontFace()->underline_thickness / 2) * fontSize / font->fontFace()->units_per_EM) * affine.m22()); + int pixelUnderlineThickness = T2PMAX(1, (int) ((font->fontFace()->underline_thickness * fontSize / font->fontFace()->units_per_EM) * affine.m22())); + + // 3. Prepare needed variables for the rendering loop + // - rendering params (layout, font...) + // - bounding box (per glyph, overall) + // - glyph matrix (overall) + // - resulting glyph sets + GlyphRenderParams *renderParams = new GlyphRenderParams(); + renderParams->setFont(font); + renderParams->setLayout(params); + renderParams->setLastGlyph(0); + renderParams->setGlyphIndex(0); + + Affine glyphAffine(affine); + Rectangle bbox, currentBbox; + GlyphSet *result = new GlyphSet(); + + // Align to path start, if bpath != 0 + Point pathPoint, pathTangent, pathNormal; + double pathLength = 0, pathAdvance = 0; + double startOffset = params->textPathStartOffset(); + + if(bpath) + { + pathLength = bpath->length(); + bpath->pointTangentNormalAt(startOffset, &pathPoint, &pathTangent); + + glyphAffine.dx() = pathPoint.x(); + glyphAffine.dy() = pathPoint.y(); + glyphAffine.rotate(atan2(pathTangent.y(), pathTangent.x())); + + std::cout << "[T2P] Starting textPath at: " << pathPoint.x() << ", " << pathPoint.y() << std::endl; + } + + // <tspan> elements can have different baseline-shift's + // baseline-shift support (Niko) + double baseline = 0; + if(!params->baselineShift().empty()) + { + if(params->baselineShift() == "sub") + baseline += fontSize / 5 + 1; + else if(params->baselineShift() == "super") + baseline -= fontSize / 3 + 1; + else + { + std::string temp = params->baselineShift(); + if(temp.find("%") > 0) + baseline -= (atof(temp.c_str()) / 100.0) * fontSize; + else + baseline -= atoi(temp.c_str()); + } + + if(!params->tb()) + glyphAffine.translate(0, baseline); + else + glyphAffine.translate(-baseline, 0); + } + + // 4. Enter main rendering loop + for(unsigned int i = 0; i < length; i++) + { + // 4a. Modify character to render + renderParams->setCharacter(bidi[i]); + + // 4c. Get glyph outline + GlyphAffinePair *glyphOutline = requestGlyph(renderParams, currentBbox, glyphAffine, onlyLatin); + m_glyphTracer->correctGlyph(glyphOutline); + + // 4d. Save advance values + result->m_glyphXAdvance.push_back((font->fontFace()->glyph->advance.x * fontSize / font->fontFace()->units_per_EM) * affine.m11()); + result->m_glyphYAdvance.push_back((font->fontFace()->glyph->advance.y * fontSize / font->fontFace()->units_per_EM) * affine.m22()); + + // 4e. Misc + // - union current + overall bounding box + // - add glyph to list of glyphs + // - apply letter & word spacing + if(renderParams->glyphIndex() != 0) + { + // Remember last glyph for kerning + renderParams->setLastGlyph(renderParams->glyphIndex()); + + // Union current + overall bounding box + bbox.bboxUnion(bbox, currentBbox); + + // Move glyph locations for the next glyph to be + // rendered apply letter & word spacing + bool addGlyph = true; + if(!params->tb()) + { + if(bpath) + { + double advance = startOffset + (pathAdvance / pathLength); + if(advance < 0.0 || advance > 1.0) // dont render off-path glyphs + addGlyph = false; + + pathAdvance += (result->m_glyphXAdvance.back() + params->letterSpacing() * affine.m11()) + ((bidi[(i + 1)] == ' ') ? params->wordSpacing() * affine.m11() : 0); + + std::cout << "[T2P] Adjusting textPath advance: " << pathAdvance << " Path Length: " << pathLength << " StartOffset: " << startOffset << " Position in Path (relative 0-1): " << pathAdvance/pathLength << " Adjusted by offset: " << startOffset + (pathAdvance / pathLength) << std::endl; + + bpath->pointTangentNormalAt(startOffset + (pathAdvance / pathLength), &pathPoint, &pathTangent, &pathNormal); + + glyphAffine.m11() = affine.m11(); + glyphAffine.m12() = affine.m12(); + glyphAffine.m21() = affine.m21(); + glyphAffine.m22() = affine.m22(); + glyphAffine.dx() = pathPoint.x(); + glyphAffine.dy() = pathPoint.y(); + + glyphAffine.rotateAround(atan2(pathTangent.y(), pathTangent.x()), Point(result->m_glyphXAdvance.back() / 2, result->m_glyphYAdvance.back() / 2)); + + std::cout << "[T2P] Aligning textPath to: " << pathPoint.x() << ", " << pathPoint.y() << std::endl; + if(!params->tb()) + glyphAffine.translate(0, baseline); + else + glyphAffine.translate(-baseline, 0); + } + else + glyphAffine.dx() += (result->m_glyphXAdvance.back() + params->letterSpacing() * affine.m11()) + ((bidi[(i + 1)] == ' ') ? params->wordSpacing() * affine.m11() : 0); + } + else + { + double advy = result->m_glyphYAdvance.back(); + + Script script; + SCRIPT_FOR_CHAR(script, bidi[i]) + if(!onlyLatin && script == Latin && params->glyphOrientationVertical() != 0) + advy = result->m_glyphXAdvance.back(); + + glyphAffine.dy() += (advy + params->letterSpacing() * affine.m22()) + ((bidi[(i + 1)] == ' ') ? params->wordSpacing() * affine.m22() : 0); + } + + // Copy bezier path/affine pair + if(addGlyph) + { + result->m_set.push_back(glyphOutline); + result->m_glyphCount++; + } + else + delete glyphOutline; + } + } + + // 5. Fill out resulting data structures + result->m_underlinePosition = pixelUnderlinePosition; + result->m_overlinePosition = pixelHeight - pixelUnderlinePosition; + result->m_strikeThroughPosition = (result->m_underlinePosition + result->m_overlinePosition) / 2; + result->m_pixelBaseline = pixelBaseline; + result->m_underlineThickness = pixelUnderlineThickness; + + result->m_xpen = glyphAffine.dx() - affine.dx(); + result->m_ypen = glyphAffine.dy() - affine.dy(); + + result->m_bboxX = T2PMAX(1, int(bbox.a().x())); + result->m_bboxY = T2PMAX(1, int(bbox.a().y() - int(pixelHeight / 2))); + result->m_height = T2PMAX(1, int(bbox.b().y() - bbox.a().y())); + + // Correct bounding box information also on + // vertical layouts! (Niko) + if(!params->tb()) + { + if(bpath) + result->m_width = int(pathAdvance); + else + result->m_width = T2PMAX(1, int(bbox.b().x() - bbox.a().x())); + } + else + result->m_width = T2PMAX(1, pixelHeight); + + // 6. Cleanup memory + if(text != bidi) + delete []bidi; + + delete renderParams; + + // 7. Eventually, dump cache statistics + // m_glyphCache.dump(); + // m_fontCache.dump(); + + return result; +} + +std::string Converter::cacheFontKey(const FontVisualParams *params) const +{ + // TODO: Tune the key + std::string key; + + key += Tools::joinList('|', const_cast<FontVisualParams *>(params)->fontList()); + key += Tools::a2str(params->weight()); + key += Tools::a2str(params->slant()); + key += Tools::a2str(params->size()); + + // std::cout << "Font cache key: " << key << std::endl; + return key; +} + +std::string Converter::cacheGlyphKey(const GlyphRenderParams *params) const +{ + // TODO: Tune the key + std::string key; + + key += params->font()->fontFile(); + key += Tools::a2str(params->character()); + key += Tools::a2str(params->glyphIndex()); + key += Tools::a2str(params->font()->fontParams()->size()); + key += Tools::a2str(params->font()->fontParams()->weight()); + key += Tools::a2str(params->font()->fontParams()->slant()); + + // std::cout << "Glyph cache key: " << key << std::endl; + return key; +} +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/Converter.h b/ksvg/impl/libs/libtext2path/src/Converter.h new file mode 100644 index 00000000..d6e19521 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Converter.h @@ -0,0 +1,94 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef T2P_CONVERTER_H +#define T2P_CONVERTER_H + +#include "Cache.h" + +// FreeType 2 includes +#include <ft2build.h> +#include FT_FREETYPE_H +#include FT_OUTLINE_H +#include FT_GLYPH_H + +namespace T2P +{ + class BezierPath; + + class Font; + class Glyph; + class Affine; + class GlyphSet; + class Rectangle; + class GlyphTracer; + class GlyphAffinePair; + class FontVisualParams; + class GlyphLayoutParams; + class GlyphRenderParams; + + typedef myboost::shared_ptr<Font> SharedFont; + typedef myboost::shared_ptr<Glyph> SharedGlyph; + + class Converter + { + public: + Converter(GlyphTracer *tracer); + ~Converter(); + + // Is initialized? + void init(); + bool ready(); + + // Kerning control + void setKerning(bool mode); + + SharedFont requestFont(const FontVisualParams *params); + GlyphAffinePair *requestGlyph(GlyphRenderParams *params, Rectangle &bbox, Affine &affine, bool onlyLatin); + + GlyphSet *calcString(Font *font, const unsigned short *text, unsigned int length, Affine &affine, const GlyphLayoutParams *params, BezierPath *bpath = 0); + SharedGlyph calcGlyph(const GlyphRenderParams *params, Affine &affine, bool onlyLatin); + + void selectGlyph(GlyphRenderParams *params); + + protected: + friend class Font; + + // Internal + FT_Library library() { return m_library; } + + private: + std::string cacheFontKey(const FontVisualParams *params) const; + std::string cacheGlyphKey(const GlyphRenderParams *params) const; + + FT_Library m_library; + + GlyphTracer *m_glyphTracer; + + Cache<Glyph> m_glyphCache; + Cache<Font> m_fontCache; + + bool m_init, m_kerning; + }; +} + +#endif + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/Font.cpp b/ksvg/impl/libs/libtext2path/src/Font.cpp new file mode 100644 index 00000000..1d6f7005 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Font.cpp @@ -0,0 +1,252 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include <math.h> +#include <iostream> +#include <fontconfig/fontconfig.h> + +#include "Font.h" +#include "Tools.h" +#include "Converter.h" + +// Macros +#define FT_TRUNC(x) ((x) >> 6) +#define FT_TOFLOAT(x) ((x) * (1.0 / 64.0)) +#define FT_FROMFLOAT(x) ((int) floor ((x) * 64.0 + 0.5)) + +using namespace T2P; + +FontVisualParams::FontVisualParams() +{ + m_size = 0.0; + m_slant = 0; + m_weight = 0; +} + +FontVisualParams::FontVisualParams(const FontVisualParams &other) +{ + (*this) = other; +} + +FontVisualParams::~FontVisualParams() +{ +} + +FontVisualParams &FontVisualParams::operator=(const FontVisualParams &other) +{ + m_size = other.m_size; + m_slant = other.m_slant; + m_weight = other.m_weight; + m_fontList = other.m_fontList; + + return *this; +} + +void FontVisualParams::setWeight(int weight) +{ + m_weight = weight; +} + +int FontVisualParams::weight() const +{ + return m_weight; +} + +void FontVisualParams::setSlant(int slant) +{ + m_slant = slant; +} + +int FontVisualParams::slant() const +{ + return m_slant; +} + +void FontVisualParams::setSize(double size) +{ + m_size = size; +} + +double FontVisualParams::size() const +{ + return m_size; +} + +std::list<std::string> &FontVisualParams::fontList() +{ + return m_fontList; +} + +// ##### + +Font::Font(Converter *context) : m_context(context) +{ + m_ready = false; + + m_fontFace = 0; + m_fontParams = 0; +} + +Font::~Font() +{ + // Release font face + if(m_ready && m_fontFace) + { + // FIXME: Debug that! + //std::cout << "CALLING DONE FACE " << m_fontFace << std::endl; + FT_Done_Face(m_fontFace); + } + + delete m_fontParams; +} + +std::string Font::buildRequest(const FontVisualParams *fontParams, int &id) +{ + // Use FontConfig to locate & select fonts and use + // FreeType2 to open them + FcPattern *pattern; + std::string fileName; + + pattern = FcPatternBuild(0, + FC_WEIGHT, FcTypeInteger, fontParams->weight(), + FC_SLANT, FcTypeInteger, fontParams->slant(), + FC_SIZE, FcTypeDouble, fontParams->size(), + NULL); + + // Add multiple font names + std::list<std::string> &fontList = const_cast<FontVisualParams *>(fontParams)->fontList(); + + for(std::list<std::string>::const_iterator it = fontList.begin(); it != fontList.end(); ++it) + { + std::string string = *it; + + if(!string.empty()) + FcPatternAddString(pattern, FC_FAMILY, reinterpret_cast<const FcChar8 *>(string.c_str())); + } + + // Always load vertical layout + FcPatternAddBool(pattern, FC_VERTICAL_LAYOUT, true); + + // Disable hinting + FcPatternAddBool(pattern, FC_HINTING, false); + + // Perform the default font pattern modification operations. + FcDefaultSubstitute(pattern); + FcConfigSubstitute(FcConfigGetCurrent(), pattern, FcMatchPattern); + + // Match the pattern! + FcResult result; + FcPattern *match = FcFontMatch(0, pattern, &result); + + // Destroy pattern + FcPatternDestroy(pattern); + + // Get index & filename + FcChar8 *temp; + + if(match) + { + FcPattern *pattern = FcPatternDuplicate(match); + + // Get index & filename + if(FcPatternGetString(pattern, FC_FILE, 0, &temp) != FcResultMatch || + FcPatternGetInteger(pattern, FC_INDEX, 0, &id) != FcResultMatch) + { + std::cout << "Font::buildRequest(), could not load font file for requested font \"" << Tools::joinList('|', fontList) << "\"" << std::endl; + return fileName; + } + + fileName = reinterpret_cast<const char *>(temp); + + // Kill pattern + FcPatternDestroy(pattern); + } + + // Kill pattern + FcPatternDestroy(match); + + return fileName; +} + +bool Font::load(const FontVisualParams *fontParams) +{ + // Build FontConfig request pattern + int id = -1; + std::string filename = Font::buildRequest(fontParams, id); + + // Load font directly using FreeType2 + std::cout << "Font::load(), loading " << filename << " for requested font \"" << Tools::joinList('|', const_cast<FontVisualParams *>(fontParams)->fontList()) << "\"" << std::endl; + + FT_Error error = FT_New_Face(m_context->library(), filename.c_str(), id, &m_fontFace); + if(error) + { + std::cout << "Font::load(), could not load font. Aborting!" << std::endl; + return false; + } + if(!FT_IS_SCALABLE(m_fontFace)) + { + std::cout << "Font::load(), font does not contain outlines. Aborting!" << std::endl; + FT_Done_Face(m_fontFace); + m_fontFace = 0; + return false; + } + + // Choose unicode charmap + for(int charmap = 0; charmap < m_fontFace->num_charmaps; charmap++) + { + if(m_fontFace->charmaps[charmap]->encoding == ft_encoding_unicode) + { + FT_Error error = FT_Set_Charmap(m_fontFace, m_fontFace->charmaps[charmap]); + + if(error) + { + std::cout << "Font::load(), unable to select unicode charmap. Aborting!" << std::endl; + + FT_Done_Face(m_fontFace); + m_fontFace = 0; + + return false; + } + } + } + + m_fontParams = fontParams; + m_fontFile = filename; + m_ready = true; + + return true; +} + +FT_Face &Font::fontFace() +{ + return m_fontFace; +} + +std::string Font::fontFile() const +{ + return m_fontFile; +} + +const FontVisualParams *Font::fontParams() const +{ + return m_fontParams; +} + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/Font.h b/ksvg/impl/libs/libtext2path/src/Font.h new file mode 100644 index 00000000..72844285 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Font.h @@ -0,0 +1,91 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef T2P_FONT_H +#define T2P_FONT_H + +#include <list> +#include <string> + +// FreeType 2 includes +#include <ft2build.h> +#include FT_FREETYPE_H + +namespace T2P +{ + class Converter; + + class FontVisualParams + { + public: + FontVisualParams(); + FontVisualParams(const FontVisualParams &other); + ~FontVisualParams(); + + FontVisualParams &operator=(const FontVisualParams &other); + + void setWeight(int weight); + int weight() const; + + void setSlant(int slant); + int slant() const; + + void setSize(double size); + double size() const; + + std::list<std::string> &fontList(); + + private: + int m_weight, m_slant; + double m_size; + + std::list<std::string> m_fontList; + }; + + class Font + { + public: + Font(Converter *context); + ~Font(); + + // Build font loading request for FontConfig + static std::string buildRequest(const FontVisualParams *fontParams, int &id); + + // Load it! :) + bool load(const FontVisualParams *fontParams); + + FT_Face &fontFace(); + std::string fontFile() const; + const FontVisualParams *fontParams() const; + + private: + FT_Face m_fontFace; + std::string m_fontFile; + + Converter *m_context; + const FontVisualParams *m_fontParams; + + bool m_ready; + }; +} + +#endif + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/Glyph.cpp b/ksvg/impl/libs/libtext2path/src/Glyph.cpp new file mode 100644 index 00000000..5d172018 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Glyph.cpp @@ -0,0 +1,353 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include <iostream> +#include "Glyph.h" + +using namespace T2P; + +Glyph::Glyph() +{ + m_bezierPath = 0; +} + +Glyph::~Glyph() +{ + delete m_bezierPath; + m_bezierPath = 0; +} + +Affine &Glyph::affine() +{ + return m_affine; +} + +void Glyph::setAffine(const Affine &affine) +{ + m_affine = affine; +} + +const BezierPath *Glyph::bezierPath() const +{ + return const_cast<const BezierPath *>(m_bezierPath); +} + +BezierPath *Glyph::modifiableBezierPath() +{ + return m_bezierPath; +} + +void Glyph::setBezierPath(const BezierPath *bpath) +{ + m_bezierPath = const_cast<BezierPath *>(bpath); +} + +FT_BBox *Glyph::ftBbox() +{ + return m_ftBbox; +} + +// ##### + +GlyphAffinePair::GlyphAffinePair(const Glyph *glyph, const Affine &affine) +{ + m_glyph = glyph; + m_affine = affine; + m_transformatedPath = 0; +} + +GlyphAffinePair::~GlyphAffinePair() +{ + // The glyphs are shared and thus not deleted (Niko) + delete m_transformatedPath; +} + +void GlyphAffinePair::setTransformatedPath(const BezierPath *path) +{ + m_transformatedPath = path; +} + +const BezierPath *GlyphAffinePair::transformatedPath() const +{ + return m_transformatedPath; +} + +const Glyph *GlyphAffinePair::glyph() const +{ + return m_glyph; +} + +Affine &GlyphAffinePair::affine() +{ + return m_affine; +} + +// ##### + +GlyphSet::GlyphSet() +{ + m_glyphCount = 0; + + m_bboxX = 0; + m_bboxY = 0; + m_width = 0; + m_height = 0; + + m_xpen = 0; + m_ypen = 0; + + m_underlinePosition = 0; + m_underlineThickness = 0; + m_overlinePosition = 0; + m_strikeThroughPosition = 0; + m_pixelBaseline = 0; +} + +GlyphSet::~GlyphSet() +{ + m_set.clear(); +} + +std::vector<GlyphAffinePair *> &GlyphSet::set() +{ + return m_set; +} + +std::list<float> GlyphSet::glyphXAdvance() +{ + return m_glyphXAdvance; +} + +std::list<float> GlyphSet::glyphYAdvance() +{ + return m_glyphYAdvance; +} + +unsigned int GlyphSet::glyphCount() const +{ + return m_glyphCount; +} + +int GlyphSet::width() const +{ + return m_width; +} + +int GlyphSet::height() const +{ + return m_height; +} + +int GlyphSet::bboxX() const +{ + return m_bboxX; +} + +int GlyphSet::bboxY() const +{ + return m_bboxY; +} + +double GlyphSet::xpen() const +{ + return m_xpen; +} + +double GlyphSet::ypen() const +{ + return m_ypen; +} + +int GlyphSet::underlinePosition() const +{ + return m_underlinePosition; +} + +int GlyphSet::underlineThickness() const +{ + return m_underlineThickness; +} + +int GlyphSet::overlinePosition() const +{ + return m_overlinePosition; +} + +int GlyphSet::strikeThroughPosition() const +{ + return m_strikeThroughPosition; +} + +int GlyphSet::pixelBaseline() const +{ + return m_pixelBaseline; +} + +// ##### + +GlyphLayoutParams::GlyphLayoutParams() +{ +} + +GlyphLayoutParams::~GlyphLayoutParams() +{ +} + +bool GlyphLayoutParams::tb() const +{ + return m_tb; +} + +void GlyphLayoutParams::setTb(bool tb) +{ + m_tb = tb; +} + +bool GlyphLayoutParams::useBidi() const +{ + return m_useBidi; +} + +void GlyphLayoutParams::setUseBidi(bool bidi) +{ + m_useBidi = bidi; +} + +double GlyphLayoutParams::wordSpacing() const +{ + return m_wordSpacing; +} + +void GlyphLayoutParams::setWordSpacing(double wordSpacing) +{ + m_wordSpacing = wordSpacing; +} + +double GlyphLayoutParams::letterSpacing() const +{ + return m_letterSpacing; +} + +void GlyphLayoutParams::setLetterSpacing(double letterSpacing) +{ + m_letterSpacing = letterSpacing; +} + +std::string GlyphLayoutParams::baselineShift() const +{ + return m_baseline; +} + +void GlyphLayoutParams::setBaselineShift(const std::string &baseline) +{ + m_baseline = baseline; +} + +int GlyphLayoutParams::glyphOrientationVertical() const +{ + return m_glyphOrientationVertical; +} + +void GlyphLayoutParams::setGlyphOrientationVertical(int orient) +{ + m_glyphOrientationVertical = orient; +} + +int GlyphLayoutParams::glyphOrientationHorizontal() const +{ + return m_glyphOrientationHorizontal; +} + +void GlyphLayoutParams::setGlyphOrientationHorizontal(int orient) +{ + m_glyphOrientationHorizontal = orient; +} + +double GlyphLayoutParams::textPathStartOffset() const +{ + return m_textPathStartOffset; +} + +void GlyphLayoutParams::setTextPathStartOffset(double offset) +{ + m_textPathStartOffset = offset; +} + +// ##### + +GlyphRenderParams::GlyphRenderParams() +{ +} + +GlyphRenderParams::~GlyphRenderParams() +{ +} + +Font *GlyphRenderParams::font() const +{ + return m_font; +} + +void GlyphRenderParams::setFont(Font *font) +{ + m_font = font; +} + +const GlyphLayoutParams *GlyphRenderParams::layout() const +{ + return m_layout; +} + +void GlyphRenderParams::setLayout(const GlyphLayoutParams *layout) +{ + m_layout = layout; +} + +unsigned int GlyphRenderParams::glyphIndex() const +{ + return m_glyphIndex; +} + +void GlyphRenderParams::setGlyphIndex(unsigned int glyphIndex) +{ + m_glyphIndex = glyphIndex; +} + +unsigned int GlyphRenderParams::lastGlyph() const +{ + return m_lastGlyph; +} + +void GlyphRenderParams::setLastGlyph(unsigned int lastGlyph) +{ + m_lastGlyph = lastGlyph; +} + +unsigned short GlyphRenderParams::character() const +{ + return m_character; +} + +void GlyphRenderParams::setCharacter(unsigned short character) +{ + m_character = character; +} + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/Glyph.h b/ksvg/impl/libs/libtext2path/src/Glyph.h new file mode 100644 index 00000000..b3bd3fb5 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Glyph.h @@ -0,0 +1,198 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef T2P_GLYPH_H +#define T2P_GLYPH_H + +#include <list> +#include <vector> +#include <string> + +#include "Affine.h" +#include "BezierPath.h" + +// FreeType 2 includes +#include <ft2build.h> +#include FT_FREETYPE_H + +namespace T2P +{ + class Font; + + // Represent one single glyph in cache + class Glyph + { + public: + Glyph(); + ~Glyph(); + + Affine &affine(); // Initial tracing affine + void setAffine(const Affine &affine); + + const BezierPath *bezierPath() const; // Non-modifyable bezierPath belonging to this glyph + BezierPath *modifiableBezierPath(); // ONLY USED BY GLYPHTRACER, DO NOT USE SOMEWHERE ELSE! + void setBezierPath(const BezierPath *bpath); + + FT_BBox *ftBbox(); + + private: + Affine m_affine; + FT_BBox m_ftBbox[4]; + BezierPath *m_bezierPath; + }; + + // Is created for every character which needs to + // be rendered and has to be deleted by the "client" + class GlyphAffinePair + { + public: + GlyphAffinePair(const Glyph *glyph, const Affine &affine); + ~GlyphAffinePair(); + + void setTransformatedPath(const BezierPath *path); + const BezierPath *transformatedPath() const; + + const Glyph *glyph() const; + Affine &affine(); + + private: + const Glyph *m_glyph; + const BezierPath *m_transformatedPath; + Affine m_affine; + }; + + class GlyphSet + { + public: + GlyphSet(); + ~GlyphSet(); + + std::vector<GlyphAffinePair *> &set(); + std::list<float> glyphXAdvance(); + std::list<float> glyphYAdvance(); + + unsigned int glyphCount() const; + + int width() const; + int height() const; + + int bboxX() const; + int bboxY() const; + + double xpen() const; + double ypen() const; + + int underlinePosition() const; + int underlineThickness() const; + int overlinePosition() const; + int strikeThroughPosition() const; + int pixelBaseline() const; + + private: + friend class Converter; + unsigned int m_glyphCount; // Number of glyphs in the set + + int m_bboxX, m_bboxY; // Bounding box locations (x,y) + (x + width, y + width) + int m_width, m_height; + + double m_xpen, m_ypen; // relative pen locations + + int m_underlinePosition, m_underlineThickness, m_overlinePosition, m_strikeThroughPosition, m_pixelBaseline; + + std::vector<GlyphAffinePair *> m_set; // Bezier paths in the set + + std::list<float> m_glyphXAdvance; // List of advance values needed ie. for text paths + std::list<float> m_glyphYAdvance; + }; + + class GlyphLayoutParams + { + public: + GlyphLayoutParams(); + ~GlyphLayoutParams(); + + bool tb() const; + void setTb(bool tb); + + bool useBidi() const; + void setUseBidi(bool bidi); + + double wordSpacing() const; + void setWordSpacing(double wordSpacing); + + double letterSpacing() const; + void setLetterSpacing(double letterSpacing); + + std::string baselineShift() const; + void setBaselineShift(const std::string &baseline); + + int glyphOrientationVertical() const; + void setGlyphOrientationVertical(int orient); + + int glyphOrientationHorizontal() const; + void setGlyphOrientationHorizontal(int orient); + + // textOnPath specific stuff + double textPathStartOffset() const; + void setTextPathStartOffset(double offset); + + private: + bool m_tb; // Top-To-Bottom or Bottom-To-Top ? + bool m_useBidi; // Use Bidi ? + double m_wordSpacing, m_letterSpacing; // word/character spacing + double m_textPathStartOffset; // range: 0.0 - 1.0; start offset in the path + int m_glyphOrientationVertical, m_glyphOrientationHorizontal; // Degrees... + std::string m_baseline; // baseline description, using same system as svg + }; + + class GlyphRenderParams + { + public: + GlyphRenderParams(); + ~GlyphRenderParams(); + + Font *font() const; + void setFont(Font *font); + + const GlyphLayoutParams *layout() const; + void setLayout(const GlyphLayoutParams *layout); + + unsigned int glyphIndex() const; + void setGlyphIndex(unsigned int glyphIndex); + + unsigned int lastGlyph() const; + void setLastGlyph(unsigned int lastGlyph); + + unsigned short character() const; + void setCharacter(unsigned short character); + + private: + Font *m_font; + const GlyphLayoutParams *m_layout; // Glyph layouting params + + unsigned int m_glyphIndex; // 'character' index in font + unsigned int m_lastGlyph; // Kerning + unsigned short m_character; // Unicode glyph to process + }; +} + +#endif + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/GlyphTracer.cpp b/ksvg/impl/libs/libtext2path/src/GlyphTracer.cpp new file mode 100644 index 00000000..42457553 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/GlyphTracer.cpp @@ -0,0 +1,76 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include "GlyphTracer.h" + +using namespace T2P; + +GlyphTracer::GlyphTracer() +{ + m_moveTo = 0; + m_lineTo = 0; + m_conicBezier = 0; + m_cubicBezier = 0; + m_outlineMethods = 0; +} + +GlyphTracer::~GlyphTracer() +{ + delete m_outlineMethods; +} + +void GlyphTracer::setMoveto(FT_Outline_MoveToFunc funcPtr) +{ + m_moveTo = funcPtr; +} + +void GlyphTracer::setLineto(FT_Outline_LineToFunc funcPtr) +{ + m_lineTo = funcPtr; +} + +void GlyphTracer::setConicBezier(FT_Outline_ConicToFunc funcPtr) +{ + m_conicBezier = funcPtr; +} + +void GlyphTracer::setCubicBezier(FT_Outline_CubicToFunc funcPtr) +{ + m_cubicBezier = funcPtr; +} + +FT_Outline_Funcs *GlyphTracer::outlineFuncs() +{ + if(m_outlineMethods) + return m_outlineMethods; + + FT_Outline_Funcs *ret = new FT_Outline_Funcs(); + ret->move_to = m_moveTo; + ret->line_to = m_lineTo; + ret->conic_to = m_conicBezier; + ret->cubic_to = m_cubicBezier; + ret->shift = 0; + ret->delta = 0; + + m_outlineMethods = ret; + return m_outlineMethods; +} + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/GlyphTracer.h b/ksvg/impl/libs/libtext2path/src/GlyphTracer.h new file mode 100644 index 00000000..7607ecad --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/GlyphTracer.h @@ -0,0 +1,65 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef T2P_GLYPHTRACER_H +#define T2P_GLYPHTRACER_H + +// FreeType 2 includes +#include <ft2build.h> +#include FT_FREETYPE_H + +namespace T2P +{ + class Glyph; + class BezierPath; + class GlyphAffinePair; + + class GlyphTracer + { + public: + GlyphTracer(); + virtual ~GlyphTracer(); + + // Needs to be implemented + virtual void correctGlyph(GlyphAffinePair *glyphAffine) = 0; + virtual BezierPath *allocBezierPath(int size) = 0; + virtual void closePath(Glyph *glyph) = 0; + + // FreeType glyph tracing functions + void setMoveto(FT_Outline_MoveToFunc funcPtr); + void setLineto(FT_Outline_LineToFunc funcPtr); + void setConicBezier(FT_Outline_ConicToFunc funcPtr); + void setCubicBezier(FT_Outline_CubicToFunc funcPtr); + + FT_Outline_Funcs *outlineFuncs(); + + private: + FT_Outline_Funcs *m_outlineMethods; + + FT_Outline_MoveToFunc m_moveTo; + FT_Outline_LineToFunc m_lineTo; + FT_Outline_ConicToFunc m_conicBezier; + FT_Outline_CubicToFunc m_cubicBezier; + }; +} + +#endif + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/Makefile.am b/ksvg/impl/libs/libtext2path/src/Makefile.am new file mode 100644 index 00000000..175e1a91 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Makefile.am @@ -0,0 +1,10 @@ +lib_LTLIBRARIES = libtext2path.la + +KDE_CXXFLAGS = $(USE_EXCEPTIONS) +INCLUDES = $(FRIBIDI_CFLAGS) $(FREETYPE_CFLAGS) $(FONTCONFIG_CFLAGS) $(all_includes) + +libtext2path_includedir=$(includedir)/libtext2path-0.1 +libtext2path_include_HEADERS = BezierPath.h Glyph.h GlyphTracer.h + +libtext2path_la_SOURCES = Affine.cpp Rectangle.cpp Font.cpp Glyph.cpp GlyphTracer.cpp Converter.cpp QtUnicode.cpp +libtext2path_la_LDFLAGS = $(FRIBIDI_LIBS) $(FONTCONFIG_LIBS) diff --git a/ksvg/impl/libs/libtext2path/src/Point.h b/ksvg/impl/libs/libtext2path/src/Point.h new file mode 100644 index 00000000..d95742a2 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Point.h @@ -0,0 +1,65 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef T2P_POINT_H +#define T2P_POINT_H + +namespace T2P +{ + class Point + { + public: + Point() { m_x = 0.0; m_y = 0.0; } + Point(double x, double y) { m_x = x; m_y = y; } + Point &operator=(const Point &other) { m_x = other.x(); m_y = other.y(); return *this; } + + friend inline Point operator+(const Point &, const Point &); + friend inline Point operator-(const Point &, const Point &); + friend inline Point operator*(const double &, const Point &); + friend inline Point operator*(const Point &, const double &); + + double x() const { return m_x; } + double y() const { return m_y; } + + void setX(double x) { m_x = x; } + void setY(double y) { m_y = y; } + + const Point invert() const + { + Point temp; + temp.setX(-x()); + temp.setY(-y()); + return temp; + } + + private: + double m_x; + double m_y; + }; + + inline Point operator+(const Point &p1, const Point &p2) { return Point(p1.m_x + p2.m_x, p1.m_y + p2.m_y); } + inline Point operator-(const Point &p1, const Point &p2) { return Point(p1.m_x - p2.m_x, p1.m_y - p2.m_y); } + inline Point operator*(const double &c, const Point &p) { return Point(p.m_x * c, p.m_y * c); } + inline Point operator*(const Point &p, const double &c) { return Point(p.m_x * c, p.m_y * c); } +} + +#endif + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/QtUnicode.cpp b/ksvg/impl/libs/libtext2path/src/QtUnicode.cpp new file mode 100644 index 00000000..694ed5c7 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/QtUnicode.cpp @@ -0,0 +1,164 @@ +/**************************************************************************** +** +** +** ??? +** +** Copyright (C) 2002-2003 Trolltech AS. All rights reserved. +** +** This file is part of the kernel module of the Qt GUI Toolkit. +** +** This file may be distributed under the terms of the Q Public License +** as defined by Trolltech AS of Norway and appearing in the file +** LICENSE.QPL included in the packaging of this file. +** +** This file may be distributed and/or modified under the terms of the +** GNU General Public License version 2 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. +** +** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition +** licenses may use this file in accordance with the Qt Commercial License +** Agreement provided with the Software. +** +** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE +** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +** +** See http://www.trolltech.com/pricing.html or email [email protected] for +** information about Qt Commercial License Agreements. +** See http://www.trolltech.com/qpl/ for QPL licensing information. +** See http://www.trolltech.com/gpl/ for GPL licensing information. +** +** Contact [email protected] if any conditions of this licensing are +** not clear to you. +** +**********************************************************************/ + +#include "QtUnicode.h" + +using namespace T2P; +// START OF GENERATED DATA + +// copied form qfont.h, as we can't include it in tools. Do not modify without +// changing the script enum in qfont.h aswell. +const unsigned char QtUnicode::otherScripts [120] = { +#define SCRIPTS_02 0 + 0xaf, Latin, 0xff, SpacingModifiers, // row 0x02, index 0 +#define SCRIPTS_03 4 + 0x6f, CombiningMarks, 0xff, Greek, // row 0x03, index 4 +#define SCRIPTS_05 8 + 0x2f, Cyrillic, 0x8f, Armenian, 0xff, Hebrew, // row 0x05, index 8 +#define SCRIPTS_07 14 + 0x4f, Syriac, 0x7f, Unicode, 0xbf, Thaana, + 0xff, Unicode, // row 0x07, index 14 +#define SCRIPTS_10 22 + 0x9f, Myanmar, 0xff, Georgian, // row 0x10, index 20 +#define SCRIPTS_13 26 + 0x7f, Ethiopic, 0x9f, Unicode, 0xff, Cherokee, // row 0x13, index 24 +#define SCRIPTS_16 32 + 0x7f, CanadianAboriginal, 0x9f, Ogham, + 0xff, Runic, // row 0x16 index 30 +#define SCRIPTS_17 38 + 0x1f, Tagalog, 0x3f, Hanunoo, 0x5f, Buhid, + 0x7f, Tagbanwa, 0xff, Khmer, // row 0x17, index 36 +#define SCRIPTS_18 48 + 0xaf, Mongolian, 0xff, Unicode, // row 0x18, index 46 +#define SCRIPTS_20 52 + 0x0b, Unicode, 0x0d, UnknownScript, 0x6f, Unicode, 0x9f, NumberForms, + 0xab, CurrencySymbols, 0xac, Latin, + 0xcf, CurrencySymbols, 0xff, CombiningMarks, // row 0x20, index 50 +#define SCRIPTS_21 68 + 0x4f, LetterlikeSymbols, 0x8f, NumberForms, + 0xff, MathematicalOperators, // row 0x21, index 62 +#define SCRIPTS_24 74 + 0x5f, TechnicalSymbols, 0xff, EnclosedAndSquare, // row 0x24, index 68 +#define SCRIPTS_2e 78 + 0x7f, Unicode, 0xff, Han, // row 0x2e, index 72 +#define SCRIPTS_30 82 + 0x3f, Han, 0x9f, Hiragana, 0xff, Katakana, // row 0x30, index 76 +#define SCRIPTS_31 88 + 0x2f, Bopomofo, 0x8f, Hangul, 0x9f, Han, + 0xff, Unicode, // row 0x31, index 82 +#define SCRIPTS_fb 96 + 0x06, Latin, 0x1c, Unicode, 0x4f, Hebrew, + 0xff, Arabic, // row 0xfb, index 90 +#define SCRIPTS_fe 104 + 0x1f, Unicode, 0x2f, CombiningMarks, 0x6f, Unicode, + 0xff, Arabic, // row 0xfe, index 98 +#define SCRIPTS_ff 112 + 0x5e, Katakana, 0x60, Unicode, // row 0xff, index 106 + 0x9f, KatakanaHalfWidth, 0xff, Unicode +}; + +// (uc-0x0900)>>7 +const unsigned char QtUnicode::indicScripts [] = +{ + Devanagari, Bengali, + Gurmukhi, Gujarati, + Oriya, Tamil, + Telugu, Kannada, + Malayalam, Sinhala, + Thai, Lao +}; + + +// 0x80 + x: x is the offset into the otherScripts table +const unsigned char QtUnicode::scriptTable[256] = +{ + Latin, Latin, 0x80+SCRIPTS_02, 0x80+SCRIPTS_03, + Cyrillic, 0x80+SCRIPTS_05, Arabic, 0x80+SCRIPTS_07, + Unicode, SCRIPTS_INDIC, SCRIPTS_INDIC, SCRIPTS_INDIC, + SCRIPTS_INDIC, SCRIPTS_INDIC, SCRIPTS_INDIC, Tibetan, + + 0x80+SCRIPTS_10, Hangul, Ethiopic, 0x80+SCRIPTS_13, + CanadianAboriginal, CanadianAboriginal, 0x80+SCRIPTS_16, 0x80+SCRIPTS_17, + 0x80+SCRIPTS_18, Unicode, Unicode, Unicode, + Unicode, Unicode, Latin, Greek, + + 0x80+SCRIPTS_20, 0x80+SCRIPTS_21, MathematicalOperators, TechnicalSymbols, + 0x80+SCRIPTS_24, GeometricSymbols, MiscellaneousSymbols, MiscellaneousSymbols, + Braille, Unicode, Unicode, Unicode, + Unicode, Unicode, 0x80+SCRIPTS_2e, Han, + + 0x80+SCRIPTS_30, 0x80+SCRIPTS_31, EnclosedAndSquare, EnclosedAndSquare, + Han, Han, Han, Han, + Han, Han, Han, Han, + Han, Han, Han, Han, + + Han, Han, Han, Han, Han, Han, Han, Han, + Han, Han, Han, Han, Han, Han, Han, Han, + + Han, Han, Han, Han, Han, Han, Han, Han, + Han, Han, Han, Han, Han, Han, Han, Han, + + Han, Han, Han, Han, Han, Han, Han, Han, + Han, Han, Han, Han, Han, Han, Han, Han, + + Han, Han, Han, Han, Han, Han, Han, Han, + Han, Han, Han, Han, Han, Han, Han, Han, + + + Han, Han, Han, Han, Han, Han, Han, Han, + Han, Han, Han, Han, Han, Han, Han, Han, + + Han, Han, Han, Han, Han, Han, Han, Han, + Han, Han, Han, Han, Han, Han, Han, Han, + + Yi, Yi, Yi, Yi, Yi, Unicode, Unicode, Unicode, + Unicode, Unicode, Unicode, Unicode, Hangul, Hangul, Hangul, Hangul, + + Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, + Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, + + Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, + Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, + + Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, Hangul, + Unicode, Unicode, Unicode, Unicode, Unicode, Unicode, Unicode, Unicode, + + Unicode, Unicode, Unicode, Unicode, Unicode, Unicode, Unicode, Unicode, + Unicode, Unicode, Unicode, Unicode, Unicode, Unicode, Unicode, Unicode, + + Unicode, Unicode, Unicode, Unicode, Unicode, Unicode, Unicode, Unicode, + Unicode, Han, Han, 0x80+SCRIPTS_fb, Arabic, Arabic, 0x80+SCRIPTS_fe, 0x80+SCRIPTS_ff +}; + diff --git a/ksvg/impl/libs/libtext2path/src/QtUnicode.h b/ksvg/impl/libs/libtext2path/src/QtUnicode.h new file mode 100644 index 00000000..41008500 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/QtUnicode.h @@ -0,0 +1,149 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef T2P_QT_UNICODE_H +#define T2P_QT_UNICODE_H + +namespace T2P +{ + enum Script + { + // European Alphabetic Scripts + Latin, + Greek, + Cyrillic, + Armenian, + Georgian, + Runic, + Ogham, + SpacingModifiers, + CombiningMarks, + + // Middle Eastern Scripts + Hebrew, + Arabic, + Syriac, + Thaana, + + // South and Southeast Asian Scripts + Devanagari, + Bengali, + Gurmukhi, + Gujarati, + Oriya, + Tamil, + Telugu, + Kannada, + Malayalam, + Sinhala, + Thai, + Lao, + Tibetan, + Myanmar, + Khmer, + + // East Asian Scripts + Han, + Hiragana, + Katakana, + Hangul, + Bopomofo, + Yi, + + // Additional Scripts + Ethiopic, + Cherokee, + CanadianAboriginal, + Mongolian, + + // Symbols + CurrencySymbols, + LetterlikeSymbols, + NumberForms, + MathematicalOperators, + TechnicalSymbols, + GeometricSymbols, + MiscellaneousSymbols, + EnclosedAndSquare, + Braille, + + Unicode, + + // some scripts added in Unicode 3.2 + Tagalog, + Hanunoo, + Buhid, + Tagbanwa, + + KatakanaHalfWidth, + + // End + NScripts, + UnknownScript = NScripts + }; + + class QtUnicode + { + public: + QtUnicode() { } + ~QtUnicode() { } + + static int scriptForChar(unsigned short uc) + { + unsigned char script = QtUnicode::scriptTable[(uc >> 8)]; + if(script >= QtUnicode::SCRIPTS_INDIC) + { + if(script == QtUnicode::SCRIPTS_INDIC) + script = QtUnicode::indicScripts[(uc - 0x0900) >> 7]; + else + { + // 0x80 + SCRIPTS_xx + unsigned char index = script - 0x80; + unsigned char cell = uc & 0xff; + while(QtUnicode::otherScripts[index++] < cell) + index++; + script = QtUnicode::otherScripts[index]; + } + } + + return script; + } + + private: + enum + { + SCRIPTS_INDIC = 0x7e + }; + + static const unsigned char otherScripts[]; + static const unsigned char indicScripts[]; + static const unsigned char scriptTable[]; + }; +} + +#define SCRIPT_FOR_CHAR(script, c) \ +if(c < 0x100) \ + script = T2P::Latin; \ +else \ + script = (T2P::Script) QtUnicode::scriptForChar(c); + +#endif + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/Rectangle.cpp b/ksvg/impl/libs/libtext2path/src/Rectangle.cpp new file mode 100644 index 00000000..ef59d6be --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Rectangle.cpp @@ -0,0 +1,102 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include "Tools.h" +#include "Rectangle.h" + +using namespace T2P; + +Rectangle::Rectangle() +{ +} + +Rectangle::Rectangle(const Rectangle &other) +{ + (*this) = other; +} + +Rectangle::Rectangle(const Point &a, const Point &b) : m_a(a), m_b(b) +{ +} + +Rectangle::Rectangle(double x, double y, double width, double height) +{ + m_a = Point(x, y); + m_b = Point(x + width, y + height); +} + +Rectangle::~Rectangle() +{ +} + +Rectangle &Rectangle::operator=(const Rectangle &other) +{ + m_a = other.m_a; + m_b = other.m_b; + + return *this; +} + +Point Rectangle::a() const +{ + return m_a; +} + +void Rectangle::setA(const Point &a) +{ + m_a = a; +} + +Point Rectangle::b() const +{ + return m_b; +} + +void Rectangle::setB(const Point &b) +{ + m_b = b; +} + +void Rectangle::bboxUnion(const Rectangle &src1, const Rectangle &src2) +{ + double src1x0 = src1.a().x(), src1x1 = src1.b().x(); + double src1y0 = src1.a().y(), src1y1 = src1.b().y(); + + double src2x0 = src2.a().x(), src2x1 = src2.b().x(); + double src2y0 = src2.a().y(), src2y1 = src2.b().y(); + + if(src1x1 <= src1x0 || src1y1 <= src1y0) // Is src1 empty? + { // Copy src2 to dst + setA(Point(src2x0, src2y0)); + setB(Point(src2x1, src2y1)); + } + else if(src2x1 <= src2x0 || src2y1 <= src2y0) // Is src2 empty? + { // Copy src1 to dest + setA(Point(src1x0, src1y0)); + setB(Point(src1x1, src1y1)); + } + else + { + setA(Point(T2PMIN(src1x0, src2x0), T2PMIN(src1y0, src2y0))); + setB(Point(T2PMAX(src1x1, src2x1), T2PMAX(src1y1, src2y1))); + } +} + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/Rectangle.h b/ksvg/impl/libs/libtext2path/src/Rectangle.h new file mode 100644 index 00000000..1a5eeeb1 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Rectangle.h @@ -0,0 +1,55 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef T2P_RECTANGLE_H +#define T2P_RECTANGLE_H + +#include "Point.h" + +namespace T2P +{ + class Rectangle + { + public: + Rectangle(); + Rectangle(const Rectangle &other); + Rectangle(const Point &a, const Point &b); + Rectangle(double x, double y, double width, double height); + ~Rectangle(); + + Rectangle &operator=(const Rectangle &other); + + Point a() const; + void setA(const Point &a); + + Point b() const; + void setB(const Point &b); + + // Finds the smallest rectangle that includes src1 and src2. + void bboxUnion(const Rectangle &src1, const Rectangle &src2); + + private: + Point m_a, m_b; + }; +} + +#endif + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/Tools.h b/ksvg/impl/libs/libtext2path/src/Tools.h new file mode 100644 index 00000000..c7753365 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/Tools.h @@ -0,0 +1,85 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + aint with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef T2P_TOOLS_H +#define T2P_TOOLS_H + +#include <list> +#include <string> +#include <config.h> +#ifdef HAVE_SSTREAM +# include <sstream> +#else +# include <strstream> +# define ostringstream ostrstream +#endif + +#define T2PMAX(a, b) ((b) < (a) ? (a) : (b)) +#define T2PMIN(a, b) ((a) < (b) ? (a) : (b)) + +namespace T2P +{ + class Tools + { + public: + static std::string joinList(char seperator, std::list<std::string> &list) + { + std::string result; + + if(list.empty()) + return result; + + bool first = true; + for(std::list<std::string>::const_iterator it = list.begin(); it != list.end(); ++it) + { + std::string string = *it; + + if(!string.empty()) + { + if(!first) + result += seperator + string; + else + { + result += string; + first = false; + } + } + } + + return result; + } + + template<typename T> + static std::string a2str(T arg) + { + std::ostringstream buffer; + buffer << arg; + return buffer.str(); + } + }; +} + +#ifdef ostringstream +# undef ostringstream +#endif + +#endif + +// vim:ts=4:noet diff --git a/ksvg/impl/libs/libtext2path/src/myboost/assert.hpp b/ksvg/impl/libs/libtext2path/src/myboost/assert.hpp new file mode 100644 index 00000000..3f3c61c2 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/myboost/assert.hpp @@ -0,0 +1,24 @@ +// +// boost/assert.hpp - BOOST_ASSERT(expr) +// +// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd. +// +// Permission to copy, use, modify, sell and distribute this software +// is granted provided this copyright notice appears in all copies. +// This software is provided "as is" without express or implied +// warranty, and with no claim as to its suitability for any purpose. +// +// Note: There are no include guards. This is intentional. +// +// See http://www.boost.org/libs/utility/assert.html for documentation. +// + +#ifndef ASSERT_HPP +#define ASSERT_HPP + +#undef BOOST_ASSERT + +# include <assert.h> +# define BOOST_ASSERT(expr) assert(expr) + +#endif diff --git a/ksvg/impl/libs/libtext2path/src/myboost/checked_delete.hpp b/ksvg/impl/libs/libtext2path/src/myboost/checked_delete.hpp new file mode 100644 index 00000000..73afd5f5 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/myboost/checked_delete.hpp @@ -0,0 +1,61 @@ +#ifndef BOOST_CHECKED_DELETE_HPP_INCLUDED +#define BOOST_CHECKED_DELETE_HPP_INCLUDED + +// +// boost/checked_delete.hpp +// +// Copyright (c) 1999, 2000, 2001, 2002 boost.org +// Copyright (c) 2002, 2003 Peter Dimov +// +// Permission to copy, use, modify, sell and distribute this software +// is granted provided this copyright notice appears in all copies. +// This software is provided "as is" without express or implied +// warranty, and with no claim as to its suitability for any purpose. +// +// See http://www.boost.org/libs/utility/checked_delete.html for documentation. +// + +namespace myboost +{ + +// verify that types are complete for increased safety + +template<class T> inline void checked_delete(T * x) +{ + // Intel 7 accepts sizeof(incomplete) as 0 in system headers + typedef char type_must_be_complete[ sizeof(T)? 1: -1 ]; + delete x; +} + +template<class T> inline void checked_array_delete(T * x) +{ + typedef char type_must_be_complete[ sizeof(T)? 1: -1 ]; + delete [] x; +} + +template<class T> struct checked_deleter +{ + typedef void result_type; + typedef T * argument_type; + + void operator()(T * x) const + { + // boost:: disables ADL + myboost::checked_delete(x); + } +}; + +template<class T> struct checked_array_deleter +{ + typedef void result_type; + typedef T * argument_type; + + void operator()(T * x) const + { + myboost::checked_array_delete(x); + } +}; + +} // namespace myboost + +#endif // #ifndef BOOST_CHECKED_DELETE_HPP_INCLUDED diff --git a/ksvg/impl/libs/libtext2path/src/myboost/lightweight_mutex.hpp b/ksvg/impl/libs/libtext2path/src/myboost/lightweight_mutex.hpp new file mode 100644 index 00000000..10db127c --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/myboost/lightweight_mutex.hpp @@ -0,0 +1,74 @@ +#ifndef BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED +#define BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED + +// +// boost/detail/lwm_pthreads.hpp +// +// Copyright (c) 2002 Peter Dimov and Multi Media Ltd. +// +// Permission to copy, use, modify, sell and distribute this software +// is granted provided this copyright notice appears in all copies. +// This software is provided "as is" without express or implied +// warranty, and with no claim as to its suitability for any purpose. +// + +#include <pthread.h> + +namespace myboost +{ + +namespace detail +{ + +class lightweight_mutex +{ +private: + + pthread_mutex_t m_; + + lightweight_mutex(lightweight_mutex const &); + lightweight_mutex & operator=(lightweight_mutex const &); + +public: + + lightweight_mutex() + { + pthread_mutex_init(&m_, 0); + } + + ~lightweight_mutex() + { + pthread_mutex_destroy(&m_); + } + + class scoped_lock; + friend class scoped_lock; + + class scoped_lock + { + private: + + pthread_mutex_t & m_; + + scoped_lock(scoped_lock const &); + scoped_lock & operator=(scoped_lock const &); + + public: + + scoped_lock(lightweight_mutex & m): m_(m.m_) + { + pthread_mutex_lock(&m_); + } + + ~scoped_lock() + { + pthread_mutex_unlock(&m_); + } + }; +}; + +} // namespace detail + +} // namespace myboost + +#endif // #ifndef BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED diff --git a/ksvg/impl/libs/libtext2path/src/myboost/shared_count.hpp b/ksvg/impl/libs/libtext2path/src/myboost/shared_count.hpp new file mode 100644 index 00000000..e8ec19a8 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/myboost/shared_count.hpp @@ -0,0 +1,367 @@ +#ifndef BOOST_DETAIL_SHARED_COUNT_HPP_INCLUDED +#define BOOST_DETAIL_SHARED_COUNT_HPP_INCLUDED + +// +// detail/shared_count.hpp +// +// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd. +// +// Permission to copy, use, modify, sell and distribute this software +// is granted provided this copyright notice appears in all copies. +// This software is provided "as is" without express or implied +// warranty, and with no claim as to its suitability for any purpose. +// + +#include "myboost/checked_delete.hpp" +#include "myboost/throw_exception.hpp" +#include "myboost/lightweight_mutex.hpp" + +#include <memory> // std::auto_ptr, std::allocator +#include <functional> // std::less +#include <exception> // std::exception +#include <new> // std::bad_alloc +#include <typeinfo> // std::type_info in get_deleter +#include <cstddef> // std::size_t + +namespace myboost +{ + +class bad_weak_ptr: public std::exception +{ +public: + + virtual char const * what() const throw() + { + return "myboost::bad_weak_ptr"; + } +}; + +namespace detail +{ + +class sp_counted_base +{ +private: + + typedef detail::lightweight_mutex mutex_type; + +public: + + sp_counted_base(): use_count_(1), weak_count_(1) + { + } + + virtual ~sp_counted_base() // nothrow + { + } + + // dispose() is called when use_count_ drops to zero, to release + // the resources managed by *this. + + virtual void dispose() = 0; // nothrow + + // destruct() is called when weak_count_ drops to zero. + + virtual void destruct() // nothrow + { + delete this; + } + + virtual void * get_deleter(std::type_info const & ti) = 0; + + void add_ref_copy() + { + mutex_type::scoped_lock lock(mtx_); + ++use_count_; + } + + void add_ref_lock() + { + mutex_type::scoped_lock lock(mtx_); + if(use_count_ == 0) myboost::throw_exception(myboost::bad_weak_ptr()); + ++use_count_; + } + + void release() // nothrow + { + { + mutex_type::scoped_lock lock(mtx_); + long new_use_count = --use_count_; + + if(new_use_count != 0) return; + } + + dispose(); + weak_release(); + } + + void weak_add_ref() // nothrow + { + mutex_type::scoped_lock lock(mtx_); + ++weak_count_; + } + + void weak_release() // nothrow + { + long new_weak_count; + + { + mutex_type::scoped_lock lock(mtx_); + new_weak_count = --weak_count_; + } + + if(new_weak_count == 0) + { + destruct(); + } + } + + long use_count() const // nothrow + { + mutex_type::scoped_lock lock(mtx_); + return use_count_; + } + +private: + + sp_counted_base(sp_counted_base const &); + sp_counted_base & operator= (sp_counted_base const &); + + long use_count_; // #shared + long weak_count_; // #weak + (#shared != 0) + + mutable mutex_type mtx_; +}; + +template<class P, class D> class sp_counted_base_impl: public sp_counted_base +{ +private: + + P ptr; // copy constructor must not throw + D del; // copy constructor must not throw + + sp_counted_base_impl(sp_counted_base_impl const &); + sp_counted_base_impl & operator= (sp_counted_base_impl const &); + + typedef sp_counted_base_impl<P, D> this_type; + +public: + + // pre: initial_use_count <= initial_weak_count, d(p) must not throw + + sp_counted_base_impl(P p, D d): ptr(p), del(d) + { + } + + virtual void dispose() // nothrow + { + del(ptr); + } + + virtual void * get_deleter(std::type_info const & ti) + { + return ti == typeid(D)? &del: 0; + } + + void * operator new(std::size_t) + { + return std::allocator<this_type>().allocate(1, static_cast<this_type *>(0)); + } + + void operator delete(void * p) + { + std::allocator<this_type>().deallocate(static_cast<this_type *>(p), 1); + } +}; + +class weak_count; + +class shared_count +{ +private: + + sp_counted_base * pi_; + + friend class weak_count; + +public: + + shared_count(): pi_(0) // nothrow + { + } + + template<class P, class D> shared_count(P p, D d): pi_(0) + { + + try + { + pi_ = new sp_counted_base_impl<P, D>(p, d); + } + catch(...) + { + d(p); // delete p + throw; + } + + + pi_ = new sp_counted_base_impl<P, D>(p, d); + + if(pi_ == 0) + { + d(p); // delete p + myboost::throw_exception(std::bad_alloc()); + } + } + + // auto_ptr<Y> is special cased to provide the strong guarantee + + template<class Y> + explicit shared_count(std::auto_ptr<Y> & r): pi_(new sp_counted_base_impl< Y *, checked_deleter<Y> >(r.get(), checked_deleter<Y>())) + { + r.release(); + } + + ~shared_count() // nothrow + { + if(pi_ != 0) pi_->release(); + } + + shared_count(shared_count const & r): pi_(r.pi_) // nothrow + { + if(pi_ != 0) pi_->add_ref_copy(); + } + + explicit shared_count(weak_count const & r); // throws bad_weak_ptr when r.use_count() == 0 + + shared_count & operator= (shared_count const & r) // nothrow + { + sp_counted_base * tmp = r.pi_; + if(tmp != 0) tmp->add_ref_copy(); + if(pi_ != 0) pi_->release(); + pi_ = tmp; + + return *this; + } + + void swap(shared_count & r) // nothrow + { + sp_counted_base * tmp = r.pi_; + r.pi_ = pi_; + pi_ = tmp; + } + + long use_count() const // nothrow + { + return pi_ != 0? pi_->use_count(): 0; + } + + bool unique() const // nothrow + { + return use_count() == 1; + } + + friend inline bool operator==(shared_count const & a, shared_count const & b) + { + return a.pi_ == b.pi_; + } + + friend inline bool operator<(shared_count const & a, shared_count const & b) + { + return std::less<sp_counted_base *>()(a.pi_, b.pi_); + } + + void * get_deleter(std::type_info const & ti) const + { + return pi_? pi_->get_deleter(ti): 0; + } +}; + +class weak_count +{ +private: + + sp_counted_base * pi_; + + friend class shared_count; + +public: + + weak_count(): pi_(0) // nothrow + { + } + + weak_count(shared_count const & r): pi_(r.pi_) // nothrow + { + if(pi_ != 0) pi_->weak_add_ref(); + } + + weak_count(weak_count const & r): pi_(r.pi_) // nothrow + { + if(pi_ != 0) pi_->weak_add_ref(); + } + + ~weak_count() // nothrow + { + if(pi_ != 0) pi_->weak_release(); + } + + weak_count & operator= (shared_count const & r) // nothrow + { + sp_counted_base * tmp = r.pi_; + if(tmp != 0) tmp->weak_add_ref(); + if(pi_ != 0) pi_->weak_release(); + pi_ = tmp; + + return *this; + } + + weak_count & operator= (weak_count const & r) // nothrow + { + sp_counted_base * tmp = r.pi_; + if(tmp != 0) tmp->weak_add_ref(); + if(pi_ != 0) pi_->weak_release(); + pi_ = tmp; + + return *this; + } + + void swap(weak_count & r) // nothrow + { + sp_counted_base * tmp = r.pi_; + r.pi_ = pi_; + pi_ = tmp; + } + + long use_count() const // nothrow + { + return pi_ != 0? pi_->use_count(): 0; + } + + friend inline bool operator==(weak_count const & a, weak_count const & b) + { + return a.pi_ == b.pi_; + } + + friend inline bool operator<(weak_count const & a, weak_count const & b) + { + return std::less<sp_counted_base *>()(a.pi_, b.pi_); + } +}; + +inline shared_count::shared_count(weak_count const & r): pi_(r.pi_) +{ + if(pi_ != 0) + { + pi_->add_ref_lock(); + } + else + { + myboost::throw_exception(myboost::bad_weak_ptr()); + } +} + +} // namespace detail + +} // namespace myboost + +#endif // #ifndef BOOST_DETAIL_SHARED_COUNT_HPP_INCLUDED diff --git a/ksvg/impl/libs/libtext2path/src/myboost/shared_ptr.hpp b/ksvg/impl/libs/libtext2path/src/myboost/shared_ptr.hpp new file mode 100644 index 00000000..3f2fe30d --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/myboost/shared_ptr.hpp @@ -0,0 +1,395 @@ +#ifndef BOOST_SHARED_PTR_HPP_INCLUDED +#define BOOST_SHARED_PTR_HPP_INCLUDED + +// shared_ptr.hpp +// +// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999. +// Copyright (c) 2001, 2002, 2003 Peter Dimov +// +// Permission to copy, use, modify, sell and distribute this software +// is granted provided this copyright notice appears in all copies. +// This software is provided "as is" without express or implied +// warranty, and with no claim as to its suitability for any purpose. +// +// See http://www.boost.org/libs/smart_ptr/shared_ptr.htm for documentation. +// + +#include "myboost/assert.hpp" +#include "myboost/checked_delete.hpp" +#include "myboost/throw_exception.hpp" +#include "myboost/shared_count.hpp" + +#include <memory> // for std::auto_ptr +#include <algorithm> // for std::swap +#include <functional> // for std::less +#include <typeinfo> // for std::bad_cast +#include <iosfwd> // for std::basic_ostream + +namespace myboost +{ + +template<class T> class weak_ptr; +template<class T> class enable_shared_from_this; + +namespace detail +{ + +struct static_cast_tag {}; +struct const_cast_tag {}; +struct dynamic_cast_tag {}; +struct polymorphic_cast_tag {}; + +template<class T> struct shared_ptr_traits +{ + typedef T & reference; +}; + +template<> struct shared_ptr_traits<void> +{ + typedef void reference; +}; + +template<> struct shared_ptr_traits<void const> +{ + typedef void reference; +}; + +template<> struct shared_ptr_traits<void volatile> +{ + typedef void reference; +}; + +template<> struct shared_ptr_traits<void const volatile> +{ + typedef void reference; +}; + +// enable_shared_from_this support + +template<class T, class Y> void sp_enable_shared_from_this(myboost::enable_shared_from_this<T> * pe, Y * px, shared_count const & pn) +{ + if(pe != 0) pe->_internal_weak_this._internal_assign(px, pn); +} + +inline void sp_enable_shared_from_this(void const *, void const *, shared_count const &) +{ +} + +} // namespace detail + + +// +// shared_ptr +// +// An enhanced relative of scoped_ptr with reference counted copy semantics. +// The object pointed to is deleted when the last shared_ptr pointing to it +// is destroyed or reset. +// + +template<class T> class shared_ptr +{ +private: + + // Borland 5.5.1 specific workaround + typedef shared_ptr<T> this_type; + +public: + + typedef T element_type; + typedef T value_type; + typedef T * pointer; + typedef typename detail::shared_ptr_traits<T>::reference reference; + + shared_ptr(): px(0), pn() // never throws in 1.30+ + { + } + + template<class Y> + explicit shared_ptr(Y * p): px(p), pn(p, checked_deleter<Y>()) // Y must be complete + { + detail::sp_enable_shared_from_this(p, p, pn); + } + + // + // Requirements: D's copy constructor must not throw + // + // shared_ptr will release p by calling d(p) + // + + template<class Y, class D> shared_ptr(Y * p, D d): px(p), pn(p, d) + { + detail::sp_enable_shared_from_this(p, p, pn); + } + +// generated copy constructor, assignment, destructor are fine... +// except that Borland C++ has a bug, and g++ with -Wsynth warns + shared_ptr & operator=(shared_ptr const & r) // never throws + { + px = r.px; + pn = r.pn; // shared_count::op= doesn't throw + return *this; + } + + template<class Y> + explicit shared_ptr(weak_ptr<Y> const & r): pn(r.pn) // may throw + { + // it is now safe to copy r.px, as pn(r.pn) did not throw + px = r.px; + } + + template<class Y> + shared_ptr(shared_ptr<Y> const & r): px(r.px), pn(r.pn) // never throws + { + } + + template<class Y> + shared_ptr(shared_ptr<Y> const & r, detail::static_cast_tag): px(static_cast<element_type *>(r.px)), pn(r.pn) + { + } + + template<class Y> + shared_ptr(shared_ptr<Y> const & r, detail::const_cast_tag): px(const_cast<element_type *>(r.px)), pn(r.pn) + { + } + + template<class Y> + shared_ptr(shared_ptr<Y> const & r, detail::dynamic_cast_tag): px(dynamic_cast<element_type *>(r.px)), pn(r.pn) + { + if(px == 0) // need to allocate new counter -- the cast failed + { + pn = detail::shared_count(); + } + } + + template<class Y> + shared_ptr(shared_ptr<Y> const & r, detail::polymorphic_cast_tag): px(dynamic_cast<element_type *>(r.px)), pn(r.pn) + { + if(px == 0) + { + myboost::throw_exception(std::bad_cast()); + } + } + + template<class Y> + explicit shared_ptr(std::auto_ptr<Y> & r): px(r.get()), pn() + { + Y * tmp = r.get(); + pn = detail::shared_count(r); + detail::sp_enable_shared_from_this(tmp, tmp, pn); + } + + template<class Y> + shared_ptr & operator=(shared_ptr<Y> const & r) // never throws + { + px = r.px; + pn = r.pn; // shared_count::op= doesn't throw + return *this; + } + + template<class Y> + shared_ptr & operator=(std::auto_ptr<Y> & r) + { + this_type(r).swap(*this); + return *this; + } + + void reset() // never throws in 1.30+ + { + this_type().swap(*this); + } + + template<class Y> void reset(Y * p) // Y must be complete + { + BOOST_ASSERT(p == 0 || p != px); // catch self-reset errors + this_type(p).swap(*this); + } + + template<class Y, class D> void reset(Y * p, D d) + { + this_type(p, d).swap(*this); + } + + reference operator* () const // never throws + { + BOOST_ASSERT(px != 0); + return *px; + } + + T * operator-> () const // never throws + { + BOOST_ASSERT(px != 0); + return px; + } + + T * get() const // never throws + { + return px; + } + + typedef T * (this_type::*unspecified_bool_type)() const; + + operator unspecified_bool_type() const // never throws + { + return px == 0? 0: &this_type::get; + } + + // operator! is redundant, but some compilers need it + + bool operator! () const // never throws + { + return px == 0; + } + + bool unique() const // never throws + { + return pn.unique(); + } + + long use_count() const // never throws + { + return pn.use_count(); + } + + void swap(shared_ptr<T> & other) // never throws + { + std::swap(px, other.px); + pn.swap(other.pn); + } + + template<class Y> bool _internal_less(shared_ptr<Y> const & rhs) const + { + return pn < rhs.pn; + } + + void * _internal_get_deleter(std::type_info const & ti) const + { + return pn.get_deleter(ti); + } + +// Tasteless as this may seem, making all members public allows member templates +// to work in the absence of member template friends. (Matthew Langston) + +# if __GNUC__ >= 2 && __GNUC_MINOR__ >= 97 +private: + + template<class Y> friend class shared_ptr; + template<class Y> friend class weak_ptr; +#endif + + T * px; // contained pointer + detail::shared_count pn; // reference counter + +}; // shared_ptr + +template<class T, class U> inline bool operator==(shared_ptr<T> const & a, shared_ptr<U> const & b) +{ + return a.get() == b.get(); +} + +template<class T, class U> inline bool operator!=(shared_ptr<T> const & a, shared_ptr<U> const & b) +{ + return a.get() != b.get(); +} + +#if __GNUC__ == 2 && __GNUC_MINOR__ <= 96 + +// Resolve the ambiguity between our op!= and the one in rel_ops + +template<class T> inline bool operator!=(shared_ptr<T> const & a, shared_ptr<T> const & b) +{ + return a.get() != b.get(); +} + +#endif + +template<class T, class U> inline bool operator<(shared_ptr<T> const & a, shared_ptr<U> const & b) +{ + return a._internal_less(b); +} + +template<class T> inline void swap(shared_ptr<T> & a, shared_ptr<T> & b) +{ + a.swap(b); +} + +template<class T, class U> shared_ptr<T> static_pointer_cast(shared_ptr<U> const & r) +{ + return shared_ptr<T>(r, detail::static_cast_tag()); +} + +template<class T, class U> shared_ptr<T> const_pointer_cast(shared_ptr<U> const & r) +{ + return shared_ptr<T>(r, detail::const_cast_tag()); +} + +template<class T, class U> shared_ptr<T> dynamic_pointer_cast(shared_ptr<U> const & r) +{ + return shared_ptr<T>(r, detail::dynamic_cast_tag()); +} + +// shared_*_cast names are deprecated. Use *_pointer_cast instead. + +template<class T, class U> shared_ptr<T> shared_static_cast(shared_ptr<U> const & r) +{ + return shared_ptr<T>(r, detail::static_cast_tag()); +} + +template<class T, class U> shared_ptr<T> shared_dynamic_cast(shared_ptr<U> const & r) +{ + return shared_ptr<T>(r, detail::dynamic_cast_tag()); +} + +template<class T, class U> shared_ptr<T> shared_polymorphic_cast(shared_ptr<U> const & r) +{ + return shared_ptr<T>(r, detail::polymorphic_cast_tag()); +} + +template<class T, class U> shared_ptr<T> shared_polymorphic_downcast(shared_ptr<U> const & r) +{ + BOOST_ASSERT(dynamic_cast<T *>(r.get()) == r.get()); + return shared_static_cast<T>(r); +} + +// get_pointer() enables boost::mem_fn to recognize shared_ptr + +template<class T> inline T * get_pointer(shared_ptr<T> const & p) +{ + return p.get(); +} + +// operator<< + + +template<class Y> std::ostream & operator<< (std::ostream & os, shared_ptr<Y> const & p) +{ + os << p.get(); + return os; +} + + +// get_deleter (experimental) + +#if (defined(__GNUC__) && (__GNUC__ < 3)) || (defined(__EDG_VERSION__) && (__EDG_VERSION__ <= 238)) + +// g++ 2.9x doesn't allow static_cast<X const *>(void *) +// apparently EDG 2.38 also doesn't accept it + +template<class D, class T> D * get_deleter(shared_ptr<T> const & p) +{ + void const * q = p._internal_get_deleter(typeid(D)); + return const_cast<D *>(static_cast<D const *>(q)); +} + +#else + +template<class D, class T> D * get_deleter(shared_ptr<T> const & p) +{ + return static_cast<D *>(p._internal_get_deleter(typeid(D))); +} + +#endif + +} // namespace boost + + +#endif // #ifndef BOOST_SHARED_PTR_HPP_INCLUDED diff --git a/ksvg/impl/libs/libtext2path/src/myboost/throw_exception.hpp b/ksvg/impl/libs/libtext2path/src/myboost/throw_exception.hpp new file mode 100644 index 00000000..dd32ec43 --- /dev/null +++ b/ksvg/impl/libs/libtext2path/src/myboost/throw_exception.hpp @@ -0,0 +1,30 @@ +#ifndef BOOST_THROW_EXCEPTION_HPP_INCLUDED +#define BOOST_THROW_EXCEPTION_HPP_INCLUDED + + +// +// boost/throw_exception.hpp +// +// Copyright (c) 2002 Peter Dimov and Multi Media Ltd. +// +// Permission to copy, use, modify, sell and distribute this software +// is granted provided this copyright notice appears in all copies. +// This software is provided "as is" without express or implied +// warranty, and with no claim as to its suitability for any purpose. +// +// http://www.boost.org/libs/utility/throw_exception.html +// + +# include <exception> + +namespace myboost +{ + +template<class E> void throw_exception(E const & e) +{ + throw e; +} + +} // namespace myboost + +#endif // #ifndef BOOST_THROW_EXCEPTION_HPP_INCLUDED diff --git a/ksvg/impl/libs/xrgbrender/Makefile.am b/ksvg/impl/libs/xrgbrender/Makefile.am new file mode 100644 index 00000000..1e9ebcc1 --- /dev/null +++ b/ksvg/impl/libs/xrgbrender/Makefile.am @@ -0,0 +1,5 @@ +INCLUDES = $(all_includes) + +noinst_LTLIBRARIES = libksvgxrgbrender.la + +libksvgxrgbrender_la_SOURCES = gdk-pixbuf-xlib.c gdk-pixbuf-xlib-drawable.c gdk-pixbuf-xlibrgb.c diff --git a/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlib-drawable.c b/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlib-drawable.c new file mode 100644 index 00000000..01f60976 --- /dev/null +++ b/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlib-drawable.c @@ -0,0 +1,1137 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* GdkPixbuf library - convert X drawable information to RGB + * + * Copyright (C) 1999 Michael Zucchi + * + * Authors: Michael Zucchi <[email protected]> + * Cody Russell <[email protected]> + * Federico Mena-Quintero <[email protected]> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +/* Ported to Xlib by John Harper <[email protected]> */ + + +#include <config.h> +#include <stdio.h> +#include <string.h> +#include "gdk-pixbuf-xlib-private.h" +#include <X11/Xlib.h> +#include <X11/Xutil.h> + +#if (X_BYTE_ORDER == X_LITTLE_ENDIAN) +#define LITTLE +#endif +#define d(x) + + + +static unsigned int mask_table[] = { + 0x00000000, 0x00000001, 0x00000003, 0x00000007, + 0x0000000f, 0x0000001f, 0x0000003f, 0x0000007f, + 0x000000ff, 0x000001ff, 0x000003ff, 0x000007ff, + 0x00000fff, 0x00001fff, 0x00003fff, 0x00007fff, + 0x0000ffff, 0x0001ffff, 0x0003ffff, 0x0007ffff, + 0x000fffff, 0x001fffff, 0x003fffff, 0x007fffff, + 0x00ffffff, 0x01ffffff, 0x03ffffff, 0x07ffffff, + 0x0fffffff, 0x1fffffff, 0x3fffffff, 0x7fffffff, + 0xffffffff +}; + + +/* color handling */ + +typedef struct xlib_colormap_struct xlib_colormap; +struct xlib_colormap_struct { + int size; + XColor *colors; + Visual *visual; + Colormap colormap; +}; + + +/* from gdkvisual.c */ +static void +visual_decompose_mask (unsigned long mask, + int *shift, + int *prec) +{ + *shift = 0; + *prec = 0; + + while (!(mask & 0x1)) { + (*shift)++; + mask >>= 1; + } + + while (mask & 0x1) { + (*prec)++; + mask >>= 1; + } +} + +static int x_error; + +static int +handle_x_error (Display *dpy, XErrorEvent *ev) +{ + x_error = 1; + return 0; +} + +static int +drawable_is_pixmap (Drawable d) +{ + /* copied from Imlib */ + + XErrorHandler errh; + XWindowAttributes wa; + int is_pixmap; + + errh = XSetErrorHandler (handle_x_error); + x_error = 0; + XGetWindowAttributes (gdk_pixbuf_dpy, d, &wa); + XSync (gdk_pixbuf_dpy, False); + is_pixmap = x_error; + XSetErrorHandler (errh); + + return is_pixmap; +} + + + +/* + convert 1 bits-pixel data + no alpha +*/ +static void +rgb1 (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + unsigned char *s; + register unsigned char data; + unsigned char *o; + unsigned char *srow = image->data, *orow = pixels; + + d (printf ("1 bits/pixel\n")); + + /* convert upto 8 pixels/time */ + /* its probably not worth trying to make this run very fast, who uses + 1 bit displays anymore? */ + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + for (yy = 0; yy < height; yy++) { + s = srow; + o = orow; + + for (xx = 0; xx < width; xx ++) { + data = srow[xx >> 3] >> (7 - (xx & 7)) & 1; + *o++ = colormap->colors[data].red; + *o++ = colormap->colors[data].green; + *o++ = colormap->colors[data].blue; + } + srow += bpl; + orow += rowstride; + } +} + +/* + convert 1 bits/pixel data + with alpha +*/ +static void +rgb1a (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + unsigned char *s; + register unsigned char data; + unsigned char *o; + unsigned char *srow = image->data, *orow = pixels; + unsigned int remap[2]; + + d (printf ("1 bits/pixel\n")); + + /* convert upto 8 pixels/time */ + /* its probably not worth trying to make this run very fast, who uses + 1 bit displays anymore? */ + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + for (xx = 0; xx < 2; xx++) { +#ifdef LITTLE + remap[xx] = 0xff000000 + | colormap->colors[xx].blue << 16 + | colormap->colors[xx].green << 8 + | colormap->colors[xx].red; +#else + remap[xx] = 0xff + | colormap->colors[xx].red << 24 + | colormap->colors[xx].green << 16 + | colormap->colors[xx].blue << 8; +#endif + } + + for (yy = 0; yy < height; yy++) { + s = srow; + o = orow; + + for (xx = 0; xx < width; xx ++) { + data = srow[xx >> 3] >> (7 - (xx & 7)) & 1; + *o++ = remap[data]; + } + srow += bpl; + orow += rowstride; + } +} + +/* + convert 8 bits/pixel data + no alpha +*/ +static void +rgb8 (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + unsigned int mask; + register unsigned int data; + unsigned char *srow = image->data, *orow = pixels; + register unsigned char *s; + register unsigned char *o; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + d (printf ("8 bit, no alpha output\n")); + + mask = mask_table[image->depth]; + + for (yy = 0; yy < height; yy++) { + s = srow; + o = orow; + for (xx = 0; xx < width; xx++) { + data = *s++ & mask; + *o++ = colormap->colors[data].red; + *o++ = colormap->colors[data].green; + *o++ = colormap->colors[data].blue; + } + srow += bpl; + orow += rowstride; + } +} + +/* + convert 8 bits/pixel data + with alpha +*/ +static void +rgb8a (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + unsigned int mask; + register unsigned int data; + unsigned int remap[256]; + register unsigned char *s; /* read 2 pixels at once */ + register unsigned int *o; + unsigned char *srow = image->data, *orow = pixels; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + d (printf ("8 bit, with alpha output\n")); + + mask = mask_table[image->depth]; + + for (xx = 0; xx < colormap->size; xx++) { +#ifdef LITTLE + remap[xx] = 0xff000000 + | colormap->colors[xx].blue << 16 + | colormap->colors[xx].green << 8 + | colormap->colors[xx].red; +#else + remap[xx] = 0xff + | colormap->colors[xx].red << 24 + | colormap->colors[xx].green << 16 + | colormap->colors[xx].blue << 8; +#endif + } + + for (yy = 0; yy < height; yy++) { + s = srow; + o = (unsigned int *) orow; + for (xx = 0; xx < width; xx ++) { + data = *s++ & mask; + *o++ = remap[data]; + } + srow += bpl; + orow += rowstride; + } +} + +/* + convert 16 bits/pixel data + no alpha + data in lsb format +*/ +static void +rgb565lsb (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + +#ifdef LITTLE + register unsigned int *s; /* read 2 pixels at once */ +#else + register unsigned char *s; /* read 2 pixels at once */ +#endif + register unsigned short *o; + unsigned char *srow = image->data, *orow = pixels; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + for (yy = 0; yy < height; yy++) { +#ifdef LITTLE + s = (unsigned int *) srow; +#else + s = srow; +#endif + o = (unsigned short *) orow; + for (xx = 1; xx < width; xx += 2) { + register unsigned int data; +#ifdef LITTLE + data = *s++; + *o++ = (data & 0xf800) >> 8 | (data & 0xe000) >> 13 + | (data & 0x7e0) << 5 | (data & 0x600) >> 1; + *o++ = (data & 0x1f) << 3 | (data & 0x1c) >> 2 + | (data & 0xf8000000) >> 16 | (data & 0xe0000000) >> 21; + *o++ = (data & 0x7e00000) >> 19 | (data & 0x6000000) >> 25 + | (data & 0x1f0000) >> 5 | (data & 0x1c0000) >> 10; +#else + /* swap endianness first */ + data = s[0] | s[1] << 8 | s[2] << 16 | s[3] << 24; + s += 4; + *o++ = (data & 0xf800) | (data & 0xe000) >> 5 + | (data & 0x7e0) >> 3 | (data & 0x600) >> 9; + *o++ = (data & 0x1f) << 11 | (data & 0x1c) << 6 + | (data & 0xf8000000) >> 24 | (data & 0xe0000000) >> 29; + *o++ = (data & 0x7e00000) >> 11 | (data & 0x6000000) >> 17 + | (data & 0x1f0000) >> 13 | (data & 0x1c0000) >> 18; +#endif + } + /* check for last remaining pixel */ + if (width & 1) { + register unsigned short data; +#ifdef LITTLE + data = *((short *) s); +#else + data = *((short *) s); + data = ((data >> 8) & 0xff) | ((data & 0xff) << 8); +#endif + ((char *) o)[0] = ((data >> 8) & 0xf8) | ((data >> 13) & 0x7); + ((char *) o)[1] = ((data >> 3) & 0xfc) | ((data >> 9) & 0x3); + ((char *) o)[2] = ((data << 3) & 0xf8) | ((data >> 2) & 0x7); + } + srow += bpl; + orow += rowstride; + } +} + +/* + convert 16 bits/pixel data + no alpha + data in msb format +*/ +static void +rgb565msb (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + +#ifdef LITTLE + register unsigned char *s; /* need to swap data order */ +#else + register unsigned int *s; /* read 2 pixels at once */ +#endif + register unsigned short *o; + unsigned char *srow = image->data, *orow = pixels; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + for (yy = 0; yy < height; yy++) { +#ifdef LITTLE + s = srow; +#else + s = (unsigned int *) srow; +#endif + o = (unsigned short *) orow; + for (xx = 1; xx < width; xx += 2) { + register unsigned int data; +#ifdef LITTLE + /* swap endianness first */ + data = s[0] | s[1] << 8 | s[2] << 16 | s[3] << 24; + s += 4; + *o++ = (data & 0xf800) >> 8 | (data & 0xe000) >> 13 + | (data & 0x7e0) << 5 | (data & 0x600) >> 1; + *o++ = (data & 0x1f) << 3 | (data & 0x1c) >> 2 + | (data & 0xf8000000) >> 16 | (data & 0xe0000000) >> 21; + *o++ = (data & 0x7e00000) >> 19 | (data & 0x6000000) >> 25 + | (data & 0x1f0000) >> 5 | (data & 0x1c0000) >> 10; +#else + data = *s++; + *o++ = (data & 0xf800) | (data & 0xe000) >> 5 + | (data & 0x7e0) >> 3 | (data & 0x600) >> 9; + *o++ = (data & 0x1f) << 11 | (data & 0x1c) << 6 + | (data & 0xf8000000) >> 24 | (data & 0xe0000000) >> 29; + *o++ = (data & 0x7e00000) >> 11 | (data & 0x6000000) >> 17 + | (data & 0x1f0000) >> 13 | (data & 0x1c0000) >> 18; +#endif + } + /* check for last remaining pixel */ + if (width & 1) { + register unsigned short data; +#ifdef LITTLE + data = *((short *) s); + data = ((data >> 8) & 0xff) | ((data & 0xff) << 8); +#else + data = *((short *) s); +#endif + ((char *) o)[0] = ((data >> 8) & 0xf8) | ((data >> 13) & 0x7); + ((char *) o)[1] = ((data >> 3) & 0xfc) | ((data >> 9) & 0x3); + ((char *) o)[2] = ((data << 3) & 0xf8) | ((data >> 2) & 0x7); + } + srow += bpl; + orow += rowstride; + } +} + +/* + convert 16 bits/pixel data + with alpha + data in lsb format +*/ +static void +rgb565alsb (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + +#ifdef LITTLE + register unsigned short *s; /* read 1 pixels at once */ +#else + register unsigned char *s; +#endif + register unsigned int *o; + + unsigned char *srow = image->data, *orow = pixels; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + for (yy = 0; yy < height; yy++) { +#ifdef LITTLE + s = (unsigned short *) srow; +#else + s = (unsigned char *) srow; +#endif + o = (unsigned int *) orow; + for (xx = 0; xx < width; xx ++) { + register unsigned int data; + /* rrrrrggg gggbbbbb -> rrrrrRRR ggggggGG bbbbbBBB aaaaaaaa */ + /* little endian: aaaaaaaa bbbbbBBB ggggggGG rrrrrRRR */ +#ifdef LITTLE + data = *s++; + *o++ = (data & 0xf800) >> 8 | (data & 0xe000) >> 13 + | (data & 0x7e0) << 5 | (data & 0x600) >> 1 + | (data & 0x1f) << 19 | (data & 0x1c) << 14 + | 0xff000000; +#else + /* swap endianness first */ + data = s[0] | s[1] << 8; + s += 2; + *o++ = (data & 0xf800) << 16 | (data & 0xe000) << 11 + | (data & 0x7e0) << 13 | (data & 0x600) << 7 + | (data & 0x1f) << 11 | (data & 0x1c) << 6 + | 0xff; +#endif + } + srow += bpl; + orow += rowstride; + } +} + +/* + convert 16 bits/pixel data + with alpha + data in msb format +*/ +static void +rgb565amsb (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + +#ifdef LITTLE + register unsigned char *s; +#else + register unsigned short *s; /* read 1 pixels at once */ +#endif + register unsigned int *o; + + unsigned char *srow = image->data, *orow = pixels; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + for (yy = 0; yy < height; yy++) { + s = srow; + o = (unsigned int *) orow; + for (xx = 0; xx < width; xx ++) { + register unsigned int data; + /* rrrrrggg gggbbbbb -> rrrrrRRR gggggg00 bbbbbBBB aaaaaaaa */ + /* little endian: aaaaaaaa bbbbbBBB gggggg00 rrrrrRRR */ +#ifdef LITTLE + /* swap endianness first */ + data = s[0] | s[1] << 8; + s += 2; + *o++ = (data & 0xf800) >> 8 | (data & 0xe000) >> 13 + | (data & 0x7e0) << 5 | (data & 0x600) >> 1 + | (data & 0x1f) << 19 | (data & 0x1c) << 14 + | 0xff000000; +#else + data = *s++; + *o++ = (data & 0xf800) << 16 | (data & 0xe000) << 11 + | (data & 0x7e0) << 13 | (data & 0x600) << 7 + | (data & 0x1f) << 11 | (data & 0x1c) << 6 + | 0xff; +#endif + } + srow += bpl; + orow += rowstride; + } +} + +/* + convert 15 bits/pixel data + no alpha + data in lsb format +*/ +static void +rgb555lsb (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + +#ifdef LITTLE + register unsigned int *s; /* read 2 pixels at once */ +#else + register unsigned char *s; /* read 2 pixels at once */ +#endif + register unsigned short *o; + unsigned char *srow = image->data, *orow = pixels; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + for (yy = 0; yy < height; yy++) { +#ifdef LITTLE + s = (unsigned int *) srow; +#else + s = srow; +#endif + o = (unsigned short *) orow; + for (xx = 1; xx < width; xx += 2) { + register unsigned int data; +#ifdef LITTLE + data = *s++; + *o++ = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12 + | (data & 0x3e0) << 6 | (data & 0x380) << 1; + *o++ = (data & 0x1f) << 3 | (data & 0x1c) >> 2 + | (data & 0x7c000000) >> 15 | (data & 0x70000000) >> 20; + *o++ = (data & 0x3e00000) >> 18 | (data & 0x3800000) >> 23 + | (data & 0x1f0000) >> 5 | (data & 0x1c0000) >> 10; +#else + /* swap endianness first */ + data = s[0] | s[1] << 8 | s[2] << 16 | s[3] << 24; + s += 4; + *o++ = (data & 0x7c00) << 1 | (data & 0x7000) >> 4 + | (data & 0x3e0) >> 2 | (data & 0x380) >> 7; + *o++ = (data & 0x1f) << 11 | (data & 0x1c) << 6 + | (data & 0x7c000000) >> 23 | (data & 0x70000000) >> 28; + *o++ = (data & 0x3e00000) >> 10 | (data & 0x3800000) >> 15 + | (data & 0x1f0000) >> 13 | (data & 0x1c0000) >> 18; +#endif + } + /* check for last remaining pixel */ + if (width & 1) { + register unsigned short data; +#ifdef LITTLE + data = *((short *) s); +#else + data = *((short *) s); + data = ((data >> 8) & 0xff) | ((data & 0xff) << 8); +#endif + ((char *) o)[0] = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12; + ((char *) o)[1] = (data & 0x3e0) >> 2 | (data & 0x380) >> 7; + ((char *) o)[2] = (data & 0x1f) << 3 | (data & 0x1c) >> 2; + } + srow += bpl; + orow += rowstride; + } +} + +/* + convert 15 bits/pixel data + no alpha + data in msb format +*/ +static void +rgb555msb (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + +#ifdef LITTLE + register unsigned char *s; /* read 2 pixels at once */ +#else + register unsigned int *s; /* read 2 pixels at once */ +#endif + register unsigned short *o; + unsigned char *srow = image->data, *orow = pixels; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + for (yy = 0; yy < height; yy++) { + s = srow; + o = (unsigned short *) orow; + for (xx = 1; xx < width; xx += 2) { + register unsigned int data; +#ifdef LITTLE + /* swap endianness first */ + data = s[0] | s[1] << 8 | s[2] << 16 | s[3] << 24; + s += 4; + *o++ = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12 + | (data & 0x3e0) << 6 | (data & 0x380) << 1; + *o++ = (data & 0x1f) << 3 | (data & 0x1c) >> 2 + | (data & 0x7c000000) >> 15 | (data & 0x70000000) >> 20; + *o++ = (data & 0x3e00000) >> 18 | (data & 0x3800000) >> 23 + | (data & 0x1f0000) >> 5 | (data & 0x1c0000) >> 10; +#else + data = *s++; + *o++ = (data & 0x7c00) << 1 | (data & 0x7000) >> 4 + | (data & 0x3e0) >> 2 | (data & 0x380) >> 7; + *o++ = (data & 0x1f) << 11 | (data & 0x1c) << 6 + | (data & 0x7c000000) >> 23 | (data & 0x70000000) >> 28; + *o++ = (data & 0x3e00000) >> 10 | (data & 0x3800000) >> 15 + | (data & 0x1f0000) >> 13 | (data & 0x1c0000) >> 18; +#endif + } + /* check for last remaining pixel */ + if (width & 1) { + register unsigned short data; +#ifdef LITTLE + data = *((short *) s); + data = ((data >> 8) & 0xff) | ((data & 0xff) << 8); +#else + data = *((short *) s); +#endif + ((char *) o)[0] = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12; + ((char *) o)[1] = (data & 0x3e0) >> 2 | (data & 0x380) >> 7; + ((char *) o)[2] = (data & 0x1f) << 3 | (data & 0x1c) >> 2; + } + srow += bpl; + orow += rowstride; + } +} + +/* + convert 15 bits/pixel data + with alpha + data in lsb format +*/ +static void +rgb555alsb (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + +#ifdef LITTLE + register unsigned short *s; /* read 1 pixels at once */ +#else + register unsigned char *s; +#endif + register unsigned int *o; + + unsigned char *srow = image->data, *orow = pixels; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + for (yy = 0; yy < height; yy++) { +#ifdef LITTLE + s = (unsigned short *) srow; +#else + s = srow; +#endif + o = (unsigned int *) orow; + for (xx = 0; xx < width; xx++) { + register unsigned int data; + /* rrrrrggg gggbbbbb -> rrrrrRRR gggggGGG bbbbbBBB aaaaaaaa */ + /* little endian: aaaaaaaa bbbbbBBB gggggGGG rrrrrRRR */ +#ifdef LITTLE + data = *s++; + *o++ = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12 + | (data & 0x3e0) << 6 | (data & 0x380) << 1 + | (data & 0x1f) << 19 | (data & 0x1c) << 14 + | 0xff000000; +#else + /* swap endianness first */ + data = s[0] | s[1] << 8; + s += 2; + *o++ = (data & 0x7c00) << 17 | (data & 0x7000) << 12 + | (data & 0x3e0) << 14 | (data & 0x380) << 9 + | (data & 0x1f) << 11 | (data & 0x1c) << 6 + | 0xff; +#endif + } + srow += bpl; + orow += rowstride; + } +} + +/* + convert 15 bits/pixel data + with alpha + data in msb format +*/ +static void +rgb555amsb (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + +#ifdef LITTLE + register unsigned short *s; /* read 1 pixels at once */ +#else + register unsigned char *s; +#endif + register unsigned int *o; + + unsigned char *srow = image->data, *orow = pixels; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + for (yy = 0; yy < height; yy++) { +#ifdef LITTLE + s = (unsigned short *) srow; +#else + s = srow; +#endif + o = (unsigned int *) orow; + for (xx = 0; xx < width; xx++) { + register unsigned int data; + /* rrrrrggg gggbbbbb -> rrrrrRRR gggggGGG bbbbbBBB aaaaaaaa */ + /* little endian: aaaaaaaa bbbbbBBB gggggGGG rrrrrRRR */ +#ifdef LITTLE + /* swap endianness first */ + data = s[0] | s[1] << 8; + s += 2; + *o++ = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12 + | (data & 0x3e0) << 6 | (data & 0x380) << 1 + | (data & 0x1f) << 19 | (data & 0x1c) << 14 + | 0xff000000; +#else + data = *s++; + *o++ = (data & 0x7c00) << 17 | (data & 0x7000) << 12 + | (data & 0x3e0) << 14 | (data & 0x380) << 9 + | (data & 0x1f) << 11 | (data & 0x1c) << 6 + | 0xff; +#endif + } + srow += bpl; + orow += rowstride; + } +} + + +static void +rgb888alsb (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + + unsigned char *s; /* for byte order swapping */ + unsigned char *o; + unsigned char *srow = image->data, *orow = pixels; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + d (printf ("32 bits/pixel with alpha\n")); + + /* lsb data */ + for (yy = 0; yy < height; yy++) { + s = srow; + o = orow; + for (xx = 0; xx < width; xx++) { + *o++ = s[2]; + *o++ = s[1]; + *o++ = s[0]; + *o++ = 0xff; + s += 4; + } + srow += bpl; + orow += rowstride; + } +} + +static void +rgb888lsb (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + + unsigned char *srow = image->data, *orow = pixels; + unsigned char *o, *s; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + d (printf ("32 bit, lsb, no alpha\n")); + + for (yy = 0; yy < height; yy++) { + s = srow; + o = orow; + for (xx = 0; xx < width; xx++) { + *o++ = s[2]; + *o++ = s[1]; + *o++ = s[0]; + s += 4; + } + srow += bpl; + orow += rowstride; + } +} + +static void +rgb888amsb (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + + unsigned char *srow = image->data, *orow = pixels; +#ifdef LITTLE + unsigned int *o; + unsigned int *s; +#else + unsigned char *s; /* for byte order swapping */ + unsigned char *o; +#endif + + d (printf ("32 bit, msb, with alpha\n")); + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + /* msb data */ + for (yy = 0; yy < height; yy++) { +#ifdef LITTLE + s = (unsigned int *) srow; + o = (unsigned int *) orow; +#else + s = srow; + o = orow; +#endif + for (xx = 0; xx < width; xx++) { +#ifdef LITTLE + *o++ = s[1]; + *o++ = s[2]; + *o++ = s[3]; + *o++ = 0xff; + s += 4; +#else + *o++ = (*s << 8) | 0xff; /* untested */ + s++; +#endif + } + srow += bpl; + orow += rowstride; + } +} + +static void +rgb888msb (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *colormap) +{ + int xx, yy; + int width, height; + int bpl; + + unsigned char *srow = image->data, *orow = pixels; + unsigned char *s; + unsigned char *o; + + d (printf ("32 bit, msb, no alpha\n")); + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + + for (yy = 0; yy < height; yy++) { + s = srow; + o = orow; + for (xx = 0; xx < width; xx++) { + *o++ = s[1]; + *o++ = s[2]; + *o++ = s[3]; + s += 4; + } + srow += bpl; + orow += rowstride; + } +} + +/* + This should work correctly with any display/any endianness, but will probably + run quite slow +*/ +static void +convert_real_slow (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *cmap, int alpha) +{ + int xx, yy; + int width, height; + int bpl; + unsigned char *srow = image->data, *orow = pixels; + unsigned char *s; + unsigned char *o; + unsigned int pixel; + Visual *v; + unsigned char component; + int i; + int red_shift, red_prec, green_shift, green_prec, blue_shift, blue_prec; + + width = image->width; + height = image->height; + bpl = image->bytes_per_line; + v = cmap->visual; + + visual_decompose_mask (v->red_mask, &red_shift, &red_prec); + visual_decompose_mask (v->green_mask, &green_shift, &green_prec); + visual_decompose_mask (v->blue_mask, &blue_shift, &blue_prec); + + d(printf("rgb mask/shift/prec = %x:%x:%x %d:%d:%d %d:%d:%d\n", + v->red_mask, v->green_mask, v->blue_mask, + red_shift, green_shift, blue_shift, + red_prec, green_prec, blue_prec)); + + for (yy = 0; yy < height; yy++) { + s = srow; + o = orow; + for (xx = 0; xx < width; xx++) { + pixel = XGetPixel (image, xx, yy); + switch (v->class) { + /* I assume this is right for static & greyscale's too? */ + case StaticGray: + case GrayScale: + case StaticColor: + case PseudoColor: + *o++ = cmap->colors[pixel].red; + *o++ = cmap->colors[pixel].green; + *o++ = cmap->colors[pixel].blue; + break; + case TrueColor: + /* This is odd because it must sometimes shift left (otherwise + I'd just shift >> (*_shift - 8 + *_prec + <0-7>). This logic + should work for all bit sizes/shifts/etc. */ + component = 0; + for (i = 24; i < 32; i += red_prec) + component |= ((pixel & v->red_mask) << (32 - red_shift - red_prec)) >> i; + *o++ = component; + component = 0; + for (i = 24; i < 32; i += green_prec) + component |= ((pixel & v->green_mask) << (32 - green_shift - green_prec)) >> i; + *o++ = component; + component = 0; + for (i = 24; i < 32; i += blue_prec) + component |= ((pixel & v->blue_mask) << (32 - blue_shift - blue_prec)) >> i; + *o++ = component; + break; + case DirectColor: + *o++ = cmap->colors[((pixel & v->red_mask) << (32 - red_shift - red_prec)) >> 24].red; + *o++ = cmap->colors[((pixel & v->green_mask) << (32 - green_shift - green_prec)) >> 24].green; + *o++ = cmap->colors[((pixel & v->blue_mask) << (32 - blue_shift - blue_prec)) >> 24].blue; + break; + } + if (alpha) + *o++ = 0xff; + } + srow += bpl; + orow += rowstride; + } +} + +typedef void (* cfunc) (XImage *image, unsigned char *pixels, int rowstride, xlib_colormap *cmap); + +static cfunc convert_map[] = { + rgb1,rgb1,rgb1a,rgb1a, + rgb8,rgb8,rgb8a,rgb8a, + rgb555lsb,rgb555msb,rgb555alsb,rgb555amsb, + rgb565lsb,rgb565msb,rgb565alsb,rgb565amsb, + rgb888lsb,rgb888msb,rgb888alsb,rgb888amsb +}; + +/* + perform actual conversion + + If we can, try and use the optimised code versions, but as a default + fallback, and always for direct colour, use the generic/slow but complete + conversion function. +*/ +static void +rgbconvert (XImage *image, unsigned char *pixels, int rowstride, int alpha, xlib_colormap *cmap) +{ + int index = (image->byte_order == MSBFirst) | (alpha != 0) << 1; + int bank=5; /* default fallback converter */ + Visual *v = cmap->visual; + + d(printf("masks = %x:%x:%x\n", v->red_mask, v->green_mask, v->blue_mask)); + d(printf("image depth = %d, bpp = %d\n", image->depth, image->bits_per_pixel)); + + switch (v->class) { + /* I assume this is right for static & greyscale's too? */ + case StaticGray: + case GrayScale: + case StaticColor: + case PseudoColor: + switch (image->bits_per_pixel) { + case 1: + bank = 0; + break; + case 8: + bank = 1; + break; + } + break; + case TrueColor: + switch (image->depth) { + case 15: + if (v->red_mask == 0x7c00 && v->green_mask == 0x3e0 && v->blue_mask == 0x1f + && image->bits_per_pixel == 16) + bank = 2; + break; + case 16: + if (v->red_mask == 0xf800 && v->green_mask == 0x7e0 && v->blue_mask == 0x1f + && image->bits_per_pixel == 16) + bank = 3; + break; + case 24: + case 32: + if (v->red_mask == 0xff0000 && v->green_mask == 0xff00 && v->blue_mask == 0xff + && image->bits_per_pixel == 32) + bank = 4; + break; + } + break; + case DirectColor: + /* always use the slow version */ + break; + } + + d(printf("converting using conversion function in bank %d\n", bank)); + + if (bank==5) { + convert_real_slow(image, pixels, rowstride, cmap, alpha); + } else { + index |= bank << 2; + (* convert_map[index]) (image, pixels, rowstride, cmap); + } +} + +static int +xlib_window_is_viewable (Window w) +{ + XWindowAttributes wa; + + while (w != 0) { + Window parent, root, *children; + int nchildren; + + XGetWindowAttributes (gdk_pixbuf_dpy, w, &wa); + if (wa.map_state != IsViewable) + return 0; + + if (!XQueryTree (gdk_pixbuf_dpy, w, &root, + &parent, &children, &nchildren)) + return 0; + + if (nchildren > 0) + XFree (children); + + if (parent == root) + return 1; + + w = parent; + } + + return 0; +} + +static int +xlib_window_get_origin (Window w, int *x, int *y) +{ + Window child; + return XTranslateCoordinates (gdk_pixbuf_dpy, w, + RootWindow (gdk_pixbuf_dpy, + gdk_pixbuf_screen), + 0, 0, x, y, &child); +} diff --git a/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlib-private.h b/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlib-private.h new file mode 100644 index 00000000..f1113339 --- /dev/null +++ b/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlib-private.h @@ -0,0 +1,30 @@ +/* GdkPixbuf library - Xlib header file + * + * Authors: John Harper <[email protected]> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#ifndef GDK_PIXBUF_XLIB_PRIVATE_H +#define GDK_PIXBUF_XLIB_PRIVATE_H + +#include "gdk-pixbuf-xlib.h" +#include <X11/Xlib.h> + +extern Display *gdk_pixbuf_dpy; +extern int gdk_pixbuf_screen; + +#endif diff --git a/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlib.c b/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlib.c new file mode 100644 index 00000000..8383246b --- /dev/null +++ b/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlib.c @@ -0,0 +1,46 @@ +/* GdkPixbuf library - Initialization functions + * + * Author: John Harper <[email protected]> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#include <config.h> +#include <X11/Xlib.h> +/*#include <gdk-pixbuf/gdk-pixbuf-private.h>*/ +#include "gdk-pixbuf-xlib-private.h" + +Display *gdk_pixbuf_dpy = NULL; +int gdk_pixbuf_screen = -1; + +/** + * gdk_pixbuf_xlib_init_with_depth: + * @display: X display to use. + * @screen_num: Screen number. + * @prefDepth: Preferred depth for XlibRGB. + * + * Similar to gdk_pixbuf_xlib_init(), but also lets you specify the preferred + * depth for XlibRGB if you do not want it to use the default depth it picks. + **/ +void +gdk_pixbuf_xlib_init_with_depth (Display *display, + int screen_num, int prefDepth) +{ + xlib_rgb_init_with_depth (display, ScreenOfDisplay (display, screen_num), + prefDepth); + gdk_pixbuf_dpy = display; + gdk_pixbuf_screen = screen_num; +} diff --git a/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlib.h b/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlib.h new file mode 100644 index 00000000..aa94c7c6 --- /dev/null +++ b/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlib.h @@ -0,0 +1,78 @@ +/* GdkPixbuf library - Xlib header file + * + * Authors: John Harper <[email protected]> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#ifndef GDK_PIXBUF_XLIB_H +#define GDK_PIXBUF_XLIB_H + +/* #include <gdk-pixbuf/gdk-pixbuf.h> */ +/* #include <gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.h> */ +#include <X11/Xlib.h> + + + +/* init */ + +void gdk_pixbuf_xlib_init_with_depth (Display *display, int screen_num, + int prefDepth); + + + +/* render */ +/* +void gdk_pixbuf_xlib_render_threshold_alpha (GdkPixbuf *pixbuf, Pixmap bitmap, + int src_x, int src_y, + int dest_x, int dest_y, + int width, int height, + int alpha_threshold); + +void gdk_pixbuf_xlib_render_to_drawable (GdkPixbuf *pixbuf, + Drawable drawable, GC gc, + int src_x, int src_y, + int dest_x, int dest_y, + int width, int height, + XlibRgbDither dither, + int x_dither, int y_dither); + + +void gdk_pixbuf_xlib_render_to_drawable_alpha (GdkPixbuf *pixbuf, + Drawable drawable, + int src_x, int src_y, + int dest_x, int dest_y, + int width, int height, + GdkPixbufAlphaMode alpha_mode, + int alpha_threshold, + XlibRgbDither dither, + int x_dither, int y_dither); + +void gdk_pixbuf_xlib_render_pixmap_and_mask (GdkPixbuf *pixbuf, + Pixmap *pixmap_return, + Pixmap *mask_return, + int alpha_threshold); + + + +GdkPixbuf *gdk_pixbuf_xlib_get_from_drawable (GdkPixbuf *dest, + Drawable src, + Colormap cmap, Visual *visual, + int src_x, int src_y, + int dest_x, int dest_y, + int width, int height); +*/ +#endif /* GDK_PIXBUF_XLIB_H */ diff --git a/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlibrgb.c b/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlibrgb.c new file mode 100644 index 00000000..eb7e4cdf --- /dev/null +++ b/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlibrgb.c @@ -0,0 +1,3425 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "MPL"); you may not use this file except in + * compliance with the MPL. You may obtain a copy of the MPL at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the MPL is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the MPL + * for the specific language governing rights and limitations under the + * MPL. + * + * Alternatively, the contents of this file may be used under the + * terms of the GNU Library General Public License (the "LGPL"), in + * which case the provisions of the LGPL are applicable instead of + * those above. If you wish to allow use of your version of this file + * only under the terms of the LGPL and not to allow others to use + * your version of this file under the MPL, indicate your decision by + * deleting the provisions above and replace them with the notice and + * other provisions required by the LGPL. If you do not delete the + * provisions above, a recipient may use your version of this file + * under either the MPL or the LGPL. + */ + +/* + * This code is derived from GdkRgb. + * For more information on GdkRgb, see http://www.levien.com/gdkrgb/ + * Raph Levien <[email protected]> + */ + +/* Ported by Christopher Blizzard to Xlib. With permission from the + * original authors and the copyright holders of this file, the + * contents of this file are also redistributable under the terms of + * the Mozilla Public license. For information about the Mozilla + * Public License, please see the license information at + * http://www.mozilla.org/MPL/ */ + +/* This code is copyright the following authors: + * Raph Levien <[email protected]> + * Manish Singh <[email protected]> + * Tim Janik <[email protected]> + * Peter Mattis <[email protected]> + * Spencer Kimball <[email protected]> + * Josh MacDonald <[email protected]> + * Christopher Blizzard <[email protected]> + * Owen Taylor <[email protected]> + * Shawn T. Amundson <[email protected]> +*/ + +#include <math.h> + +#if HAVE_CONFIG_H +# include <config.h> +# if STDC_HEADERS +# include <stdio.h> +# include <stdlib.h> +# include <string.h> +# endif +#else +# include <stdio.h> +# include <stdlib.h> +#endif + +#define ENABLE_GRAYSCALE + +/* include this before so that we can get endian definitions if + they are there... */ + +#include "gdk-pixbuf-xlibrgb.h" +#include "gdk-pixbuf-xlib-private.h" + +#ifndef MIN +#define MIN(a, b) (((a) < (b)) ? (a) : (b)) +#endif + +#ifndef MAX +#define MAX(a, b) (((a) > (b)) ? (a) : (b)) +#endif + +typedef enum { + LSB_FIRST, + MSB_FIRST +} ByteOrder; + + +typedef struct _XlibRgbInfo XlibRgbInfo; + +typedef void (*XlibRgbConvFunc) (XImage *image, + int ax, int ay, + int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, + XlibRgbCmap *cmap); + +/* Some of these fields should go, as they're not being used at all. + Globals should generally migrate into here - it's very likely that + we'll want to run more than one GdkRgbInfo context at the same time + (i.e. some but not all windows have privately installed + colormaps). */ + +struct _XlibRgbInfo +{ + Display *display; + Screen *screen; + int screen_num; + XVisualInfo *x_visual_info; + Colormap cmap; + XColor *cmap_colors; + Visual *default_visualid; + Colormap default_colormap; + + unsigned long *color_pixels; + unsigned long *gray_pixels; + unsigned long *reserved_pixels; + + unsigned long red_shift; + unsigned long red_prec; + unsigned long blue_shift; + unsigned long blue_prec; + unsigned long green_shift; + unsigned long green_prec; + + unsigned int nred_shades; + unsigned int ngreen_shades; + unsigned int nblue_shades; + unsigned int ngray_shades; + unsigned int nreserved; + + unsigned int bpp; + unsigned int cmap_alloced; + double gamma_val; + + /* Generally, the stage buffer is used to convert 32bit RGB, gray, + and indexed images into 24 bit packed RGB. */ + unsigned char *stage_buf; + + XlibRgbCmap *gray_cmap; + + Bool dith_default; + + Bool bitmap; /* set true if in 1 bit per pixel mode */ + GC own_gc; + + /* Convert functions */ + XlibRgbConvFunc conv; + XlibRgbConvFunc conv_d; + + XlibRgbConvFunc conv_32; + XlibRgbConvFunc conv_32_d; + + XlibRgbConvFunc conv_gray; + XlibRgbConvFunc conv_gray_d; + + XlibRgbConvFunc conv_indexed; + XlibRgbConvFunc conv_indexed_d; +}; + +static Bool xlib_rgb_install_cmap = FALSE; +static int xlib_rgb_min_colors = 5 * 5 * 5; +static Bool xlib_rgb_verbose = FALSE; + +#define IMAGE_WIDTH 256 +#define STAGE_ROWSTRIDE (IMAGE_WIDTH * 3) +#define IMAGE_HEIGHT 64 +#define N_IMAGES 6 + +static XlibRgbInfo *image_info = NULL; +static XImage *static_image[N_IMAGES]; +static int static_image_idx; + +static unsigned char *colorcube; +static unsigned char *colorcube_d; + +static unsigned long +xlib_get_prec_from_mask(unsigned long val) +{ + unsigned long retval = 0; + unsigned int cur_bit = 0; + /* walk through the number, incrementing the value if + the bit in question is set. */ + while (cur_bit < (sizeof(unsigned long) * 8)) { + if ((val >> cur_bit) & 0x1) { + retval++; + } + cur_bit++; + } + return retval; +} + +static unsigned long +xlib_get_shift_from_mask(unsigned long val) +{ + unsigned long cur_bit = 0; + /* walk through the number, looking for the first 1 */ + while (cur_bit < (sizeof(unsigned long) * 8)) { + if ((val >> cur_bit) & 0x1) { + return cur_bit; + } + cur_bit++; + } + return cur_bit; +} + + +static int +xlib_rgb_cmap_fail (const char *msg, Colormap cmap, unsigned long *pixels) +{ + unsigned long free_pixels[256]; + int n_free; + int i; + +#ifdef VERBOSE + printf ("%s", msg); +#endif + n_free = 0; + for (i = 0; i < 256; i++) + if (pixels[i] < 256) + free_pixels[n_free++] = pixels[i]; + + if (n_free) + XFreeColors(image_info->display, + cmap, + free_pixels, + n_free, + 0); + return 0; +} + +static void +xlib_rgb_make_colorcube (unsigned long *pixels, int nr, int ng, int nb) +{ + unsigned char rt[16], gt[16], bt[16]; + int i; + + colorcube = malloc(sizeof(unsigned char) * 4096); + memset(colorcube, 0, (sizeof(unsigned char) * 4096)); + for (i = 0; i < 16; i++) + { + rt[i] = ng * nb * ((i * 17 * (nr - 1) + 128) >> 8); + gt[i] = nb * ((i * 17 * (ng - 1) + 128) >> 8); + bt[i] = ((i * 17 * (nb - 1) + 128) >> 8); + } + + for (i = 0; i < 4096; i++) + { + colorcube[i] = pixels[rt[i >> 8] + gt[(i >> 4) & 0x0f] + bt[i & 0x0f]]; +#ifdef VERBOSE + printf ("%03x %02x %x %x %x\n", i, colorcube[i], rt[i >> 8], gt[(i >> 4) & 0x0f], bt[i & 0x0f]); +#endif + } +} + +/* this is the colorcube suitable for dithering */ +static void +xlib_rgb_make_colorcube_d (unsigned long *pixels, int nr, int ng, int nb) +{ + int r, g, b; + int i; + + colorcube_d = malloc(sizeof(unsigned char) * 512); + memset(colorcube_d, 0, (sizeof(unsigned char) * 512)); + for (i = 0; i < 512; i++) + { + r = MIN (nr - 1, i >> 6); + g = MIN (ng - 1, (i >> 3) & 7); + b = MIN (nb - 1, i & 7); + colorcube_d[i] = pixels[(r * ng + g) * nb + b]; + } +} + +/* Try installing a color cube of the specified size. + Make the colorcube and return TRUE on success */ +static int +xlib_rgb_try_colormap (int nr, int ng, int nb) +{ + int r, g, b; + int ri, gi, bi; + int r0, g0, b0; + Colormap cmap; + XVisualInfo *visual; + XColor *colors = NULL; + XColor color; + unsigned long pixels[256]; + unsigned long junk[256]; + int i; + int d2; + unsigned int colors_needed; + int idx; + int best[256]; + + if (nr * ng * nb < xlib_rgb_min_colors) + return FALSE; + + if (image_info->cmap_alloced) { + cmap = image_info->cmap; + visual = image_info->x_visual_info; + } + else { + cmap = image_info->default_colormap; + visual = image_info->x_visual_info; + } + colors_needed = nr * ng * nb; + for (i = 0; i < 256; i++) + { + best[i] = 192; + pixels[i] = 256; + } + +#ifndef GAMMA + if (!xlib_rgb_install_cmap) { + /* go out and get the colors for this colormap. */ + colors = malloc(sizeof(XColor) * visual->colormap_size); + for (i=0; i < visual->colormap_size; i++){ + colors[i].pixel = i; + } + XQueryColors (image_info->display, + cmap, + colors, visual->colormap_size); + /* find color cube colors that are already present */ + for (i = 0; i < MIN (256, visual->colormap_size); i++) + { + r = colors[i].red >> 8; + g = colors[i].green >> 8; + b = colors[i].blue >> 8; + ri = (r * (nr - 1) + 128) >> 8; + gi = (g * (ng - 1) + 128) >> 8; + bi = (b * (nb - 1) + 128) >> 8; + r0 = ri * 255 / (nr - 1); + g0 = gi * 255 / (ng - 1); + b0 = bi * 255 / (nb - 1); + idx = ((ri * nr) + gi) * nb + bi; + d2 = (r - r0) * (r - r0) + (g - g0) * (g - g0) + (b - b0) * (b - b0); + if (d2 < best[idx]) { + if (pixels[idx] < 256) + XFreeColors(image_info->display, + cmap, + pixels + idx, + 1, 0); + else + colors_needed--; + color.pixel = colors[i].pixel; + color.red = colors[i].red; + color.green = colors[i].green; + color.blue = colors[i].blue; + color.flags = 0; + if (!XAllocColor(image_info->display, cmap, &color)) + return xlib_rgb_cmap_fail ("error allocating system color\n", + cmap, pixels); + pixels[idx] = color.pixel; /* which is almost certainly i */ + best[idx] = d2; + } + } + } + +#endif + + if (colors_needed) + { + if (!XAllocColorCells(image_info->display, cmap, 0, NULL, 0, junk, colors_needed)) + { + char tmp_str[80]; + + sprintf (tmp_str, + "%d %d %d colormap failed (in XAllocColorCells)\n", + nr, ng, nb); + return xlib_rgb_cmap_fail (tmp_str, cmap, pixels); + } + XFreeColors(image_info->display, cmap, junk, (int)colors_needed, 0); + } + + for (r = 0, i = 0; r < nr; r++) + for (g = 0; g < ng; g++) + for (b = 0; b < nb; b++, i++) + { + if (pixels[i] == 256) + { + color.red = r * 65535 / (nr - 1); + color.green = g * 65535 / (ng - 1); + color.blue = b * 65535 / (nb - 1); + +#ifdef GAMMA + color.red = 65535 * pow (color.red / 65535.0, 0.5); + color.green = 65535 * pow (color.green / 65535.0, 0.5); + color.blue = 65535 * pow (color.blue / 65535.0, 0.5); +#endif + + /* This should be a raw XAllocColor call */ + if (!XAllocColor(image_info->display, cmap, &color)) + { + char tmp_str[80]; + + sprintf (tmp_str, "%d %d %d colormap failed\n", + nr, ng, nb); + return xlib_rgb_cmap_fail (tmp_str, + cmap, pixels); + } + pixels[i] = color.pixel; + } +#ifdef VERBOSE + printf ("%d: %lx\n", i, pixels[i]); +#endif + } + + image_info->nred_shades = nr; + image_info->ngreen_shades = ng; + image_info->nblue_shades = nb; + xlib_rgb_make_colorcube (pixels, nr, ng, nb); + xlib_rgb_make_colorcube_d (pixels, nr, ng, nb); + if (colors) + free(colors); + return TRUE; +} + +/* Return TRUE on success. */ +static Bool +xlib_rgb_do_colormaps (void) +{ + static const int sizes[][3] = { + /* { 6, 7, 6 }, */ + { 6, 6, 6 }, + { 6, 6, 5 }, + { 6, 6, 4 }, + { 5, 5, 5 }, + { 5, 5, 4 }, + { 4, 4, 4 }, + { 4, 4, 3 }, + { 3, 3, 3 }, + { 2, 2, 2 } + }; + static const int n_sizes = sizeof(sizes) / (3 * sizeof(int)); + int i; + + for (i = 0; i < n_sizes; i++) + if (xlib_rgb_try_colormap (sizes[i][0], sizes[i][1], sizes[i][2])) + return TRUE; + return FALSE; +} + +/* Make a 2 x 2 x 2 colorcube */ +static void +xlib_rgb_colorcube_222 (void) +{ + int i; + XColor color; + Colormap cmap; + + if (image_info->cmap_alloced) + cmap = image_info->cmap; + else + cmap = image_info->default_colormap; + + colorcube_d = malloc(sizeof(unsigned char) * 512); + + for (i = 0; i < 8; i++) + { + color.red = ((i & 4) >> 2) * 65535; + color.green = ((i & 2) >> 1) * 65535; + color.blue = (i & 1) * 65535; + XAllocColor (image_info->display, cmap, &color); + colorcube_d[((i & 4) << 4) | ((i & 2) << 2) | (i & 1)] = color.pixel; + } +} + +/** + * xlib_rgb_set_verbose: + * @verbose: %True to be verbose + * + * Enables/disables debug spew. + **/ +void +xlib_rgb_set_verbose (Bool verbose) +{ + xlib_rgb_verbose = verbose; +} + +/** + * xlib_rgb_set_install: + * @install: %True to install a colormap + * + * Sets whether we install an RGB colormap. + **/ +void +xlib_rgb_set_install (Bool install) +{ + xlib_rgb_install_cmap = install; +} + +/** + * xlib_rgb_set_min_colors: + * @min_colors: minimum colors to use + * + * Sets the minimum number of colors in the color cube. + **/ +void +xlib_rgb_set_min_colors (int min_colors) +{ + xlib_rgb_min_colors = min_colors; +} + +/* Return a "score" based on the following criteria (in hex): + + x000 is the quality - 1 is 1bpp, 2 is 4bpp, + 4 is 8bpp, + 7 is 15bpp truecolor, 8 is 16bpp truecolor, + 9 is 24bpp truecolor. + 0x00 is the speed - 1 is the normal case, + 2 means faster than normal + 00x0 gets a point for being the system visual + 000x gets a point for being pseudocolor + + A caveat: in the 8bpp modes, being the system visual seems to be + quite important. Thus, all of the 8bpp modes should be ranked at + the same speed. +*/ + +static unsigned int +xlib_rgb_score_visual (XVisualInfo *visual) +{ + unsigned int quality, speed, pseudo, sys; + static const char* visual_names[] = + { + "static gray", + "grayscale", + "static color", + "pseudo color", + "true color", + "direct color", + }; + + + quality = 0; + speed = 1; + sys = 0; + if (visual->class == TrueColor || + visual->class == DirectColor) + { + if (visual->depth == 24) + { + quality = 9; + /* Should test for MSB visual here, and set speed if so. */ + } + else if (visual->depth == 16) + quality = 8; + else if (visual->depth == 15) + quality = 7; + else if (visual->depth == 8) + quality = 4; + } + else if (visual->class == PseudoColor || + visual->class == StaticColor) + { + if (visual->depth == 8) + quality = 4; + else if (visual->depth == 4) + quality = 2; + else if (visual->depth == 1) + quality = 1; + } + else if (visual->class == StaticGray +#ifdef ENABLE_GRAYSCALE + || visual->class == GrayScale +#endif + ) + { + if (visual->depth == 8) + quality = 4; + else if (visual->depth == 4) + quality = 2; + else if (visual->depth == 1) + quality = 1; + } + + if (quality == 0) + return 0; + + sys = (visual->visualid == image_info->default_visualid->visualid); + + pseudo = (visual->class == PseudoColor || visual->class == TrueColor); + + if (xlib_rgb_verbose) + printf ("Visual 0x%x, type = %s, depth = %d, %ld:%ld:%ld%s; score=%x\n", + (int)visual->visualid, + visual_names[visual->class], + visual->depth, + visual->red_mask, + visual->green_mask, + visual->blue_mask, + sys ? " (system)" : "", + (quality << 12) | (speed << 8) | (sys << 4) | pseudo); + + return (quality << 12) | (speed << 8) | (sys << 4) | pseudo; +} + +static void +xlib_rgb_choose_visual (void) +{ + XVisualInfo *visuals; + XVisualInfo *visual; + XVisualInfo *best_visual; + XVisualInfo *final_visual; + XVisualInfo template; + int num_visuals; + unsigned int score, best_score; + int cur_visual = 1; + int i; + + template.screen = image_info->screen_num; + visuals = XGetVisualInfo(image_info->display, VisualScreenMask, + &template, &num_visuals); + + best_visual = visuals; + best_score = xlib_rgb_score_visual (best_visual); + + for (i = cur_visual; i < num_visuals; i++) + { + visual = &visuals[i]; + score = xlib_rgb_score_visual (visual); + if (score > best_score) + { + best_score = score; + best_visual = visual; + } + } + /* make a copy of the visual so that we can free + the allocated visual list above. */ + final_visual = malloc(sizeof(XVisualInfo)); + memcpy(final_visual, best_visual, sizeof(XVisualInfo)); + image_info->x_visual_info = final_visual; + XFree(visuals); + /* set up the shift and the precision for the red, green and blue. + this only applies to cool visuals like true color and direct color. */ + if (image_info->x_visual_info->class == TrueColor || + image_info->x_visual_info->class == DirectColor) { + image_info->red_shift = xlib_get_shift_from_mask(image_info->x_visual_info->red_mask); + image_info->red_prec = xlib_get_prec_from_mask(image_info->x_visual_info->red_mask); + image_info->green_shift = xlib_get_shift_from_mask(image_info->x_visual_info->green_mask); + image_info->green_prec = xlib_get_prec_from_mask(image_info->x_visual_info->green_mask); + image_info->blue_shift = xlib_get_shift_from_mask(image_info->x_visual_info->blue_mask); + image_info->blue_prec = xlib_get_prec_from_mask(image_info->x_visual_info->blue_mask); + } +} + +static void +xlib_rgb_choose_visual_for_xprint (int aDepth) +{ + XVisualInfo *visuals; + XVisualInfo *visual; + XVisualInfo *best_visual; + XVisualInfo *final_visual; + XVisualInfo template; + int num_visuals; + int cur_visual = 1; + int i; + + XWindowAttributes win_att; + Status ret_stat; + Visual *root_visual; + + ret_stat = XGetWindowAttributes(image_info->display, + RootWindow(image_info->display, image_info->screen_num), + &win_att); + root_visual = win_att.visual; + template.screen = image_info->screen_num; + visuals = XGetVisualInfo(image_info->display, VisualScreenMask, + &template, &num_visuals); + + best_visual = visuals; + if (best_visual->visual != root_visual) { + for (i = cur_visual; i < num_visuals; i++) { + visual = &visuals[i]; + if (visual->visual == root_visual) { + best_visual = visual; + break; + } + } + } + /* make a copy of the visual so that we can free + the allocated visual list above. */ + final_visual = malloc(sizeof(XVisualInfo)); + memcpy(final_visual, best_visual, sizeof(XVisualInfo)); + image_info->x_visual_info = final_visual; + XFree(visuals); + /* set up the shift and the precision for the red, green and blue. + this only applies to cool visuals like true color and direct color. */ + if (image_info->x_visual_info->class == TrueColor || + image_info->x_visual_info->class == DirectColor) { + image_info->red_shift = xlib_get_shift_from_mask(image_info->x_visual_info->red_mask); + image_info->red_prec = xlib_get_prec_from_mask(image_info->x_visual_info->red_mask); + image_info->green_shift = xlib_get_shift_from_mask(image_info->x_visual_info->green_mask); + image_info->green_prec = xlib_get_prec_from_mask(image_info->x_visual_info->green_mask); + image_info->blue_shift = xlib_get_shift_from_mask(image_info->x_visual_info->blue_mask); + image_info->blue_prec = xlib_get_prec_from_mask(image_info->x_visual_info->blue_mask); + } +} + +static void xlib_rgb_select_conv (XImage *image, ByteOrder byte_order); + +static void +xlib_rgb_set_gray_cmap (Colormap cmap) +{ + int i; + XColor color; + int status; + unsigned long pixels[256]; + int r, g, b, gray; + + for (i = 0; i < 256; i++) + { + color.pixel = i; + color.red = i * 257; + color.green = i * 257; + color.blue = i * 257; + status = XAllocColor(image_info->display, cmap, &color); + pixels[i] = color.pixel; +#ifdef VERBOSE + printf ("allocating pixel %d, %x %x %x, result %d\n", + color.pixel, color.red, color.green, color.blue, status); +#endif + } + + /* Now, we make fake colorcubes - we ultimately just use the pseudocolor + methods. */ + + colorcube = malloc(sizeof(unsigned char) * 4096); + + for (i = 0; i < 4096; i++) + { + r = (i >> 4) & 0xf0; + r = r | r >> 4; + g = i & 0xf0; + g = g | g >> 4; + b = (i << 4 & 0xf0); + b = b | b >> 4; + gray = (g + ((r + b) >> 1)) >> 1; + colorcube[i] = pixels[gray]; + } +} + +/** + * xlib_rgb_init_with_depth: + * @display: X display to use. + * @screen: Screen to use. + * @prefDepth: Visual depth to use for color substitution tables. This must + * be one of the supported visual depths in the specified @display. + * + * Initializes the XlibRGB machinery with a particular depth you specify, + * instead of automatically picking the best depth in the display. This + * function or xlib_rgb_init() must be called before using any of the other + * functions in XlibRGB. + **/ +void +xlib_rgb_init_with_depth (Display *display, Screen *screen, int prefDepth) +{ + int i; + static const int byte_order[1] = { 1 }; + + static int initialized = 0; + + if (initialized) + { + return; + } + + initialized = 1; + +#if X_BYTE_ORDER == X_BIG_ENDIAN + if (((char *)byte_order)[0] == 1) { + printf ("xlib_rgb_init: compiled for big endian, but this is a little endian machine.\n\n"); + exit(1); + } +#else + if (((char *)byte_order)[0] != 1) { + printf ("xlib_rgb_init: compiled for little endian, but this is a big endian machine.\n\n"); + exit(1); + } +#endif + + if (image_info == NULL) + { + image_info = malloc(sizeof(XlibRgbInfo)); + memset(image_info, 0, sizeof(XlibRgbInfo)); + + image_info->display = display; + image_info->screen = screen; + image_info->screen_num = XScreenNumberOfScreen(screen); + image_info->x_visual_info = NULL; + image_info->cmap = 0; + image_info->default_visualid = DefaultVisual(display, image_info->screen_num); + image_info->default_colormap = DefaultColormap(display, image_info->screen_num); + + image_info->color_pixels = NULL; + image_info->gray_pixels = NULL; + image_info->reserved_pixels = NULL; + + image_info->nred_shades = 6; + image_info->ngreen_shades = 6; + image_info->nblue_shades = 4; + image_info->ngray_shades = 24; + image_info->nreserved = 0; + + image_info->bpp = 0; + image_info->cmap_alloced = FALSE; + image_info->gamma_val = 1.0; + + image_info->stage_buf = NULL; + + image_info->own_gc = 0; + + image_info->red_shift = 0; + image_info->red_prec = 0; + image_info->green_shift = 0; + image_info->green_prec = 0; + image_info->blue_shift = 0; + image_info->blue_prec = 0; + + if (prefDepth != -1) + xlib_rgb_choose_visual_for_xprint (prefDepth); + else + xlib_rgb_choose_visual (); + + if ((image_info->x_visual_info->class == PseudoColor || + image_info->x_visual_info->class == StaticColor) && + image_info->x_visual_info->depth < 8 && + image_info->x_visual_info->depth >= 3) + { + image_info->cmap = image_info->default_colormap; + xlib_rgb_colorcube_222 (); + } + else if (image_info->x_visual_info->class == PseudoColor) + { + if (xlib_rgb_install_cmap || + image_info->x_visual_info->visualid != image_info->default_visualid->visualid) + { + image_info->cmap = XCreateColormap(image_info->display, + RootWindow(image_info->display, image_info->screen_num), + image_info->x_visual_info->visual, + AllocNone); + image_info->cmap_alloced = TRUE; + } + if (!xlib_rgb_do_colormaps ()) + { + image_info->cmap = XCreateColormap(image_info->display, + RootWindow(image_info->display, image_info->screen_num), + image_info->x_visual_info->visual, + AllocNone); + image_info->cmap_alloced = TRUE; + xlib_rgb_do_colormaps (); + } + if (xlib_rgb_verbose) + printf ("color cube: %d x %d x %d\n", + image_info->nred_shades, + image_info->ngreen_shades, + image_info->nblue_shades); + + if (!image_info->cmap_alloced) + image_info->cmap = image_info->default_colormap; + } +#ifdef ENABLE_GRAYSCALE + else if (image_info->x_visual_info->class == GrayScale) + { + image_info->cmap = XCreateColormap(image_info->display, + RootWindow(image_info->display, image_info->screen_num), + image_info->x_visual_info->visual, + AllocNone); + xlib_rgb_set_gray_cmap (image_info->cmap); + image_info->cmap_alloced = TRUE; + } +#endif + else + { + /* Always install colormap in direct color. */ + if (image_info->x_visual_info->class != DirectColor && + image_info->x_visual_info->visualid == image_info->default_visualid->visualid) + image_info->cmap = image_info->default_colormap; + else + { + image_info->cmap = XCreateColormap(image_info->display, + RootWindow(image_info->display, image_info->screen_num), + image_info->x_visual_info->visual, + AllocNone); + image_info->cmap_alloced = TRUE; + } + } + + image_info->bitmap = (image_info->x_visual_info->depth == 1); + + for (i = 0; i < N_IMAGES; i++) { + if (image_info->bitmap) { + /* Use malloc() instead of g_malloc since X will free() this mem */ + static_image[i] = XCreateImage(image_info->display, + image_info->x_visual_info->visual, + 1, + XYBitmap, + 0, 0, IMAGE_WIDTH, IMAGE_HEIGHT, + 8, + 0); + static_image[i]->data = malloc(IMAGE_WIDTH * IMAGE_HEIGHT >> 3); + static_image[i]->bitmap_bit_order = MSBFirst; + static_image[i]->byte_order = MSBFirst; + } + else { + static_image[i] = XCreateImage(image_info->display, + image_info->x_visual_info->visual, + (unsigned int)image_info->x_visual_info->depth, + ZPixmap, + 0, 0, + IMAGE_WIDTH, + IMAGE_HEIGHT, + 32, 0); + /* remove this when we are using shared memory.. */ + static_image[i]->data = malloc((size_t)IMAGE_WIDTH * IMAGE_HEIGHT * image_info->x_visual_info->depth); + static_image[i]->bitmap_bit_order = MSBFirst; + static_image[i]->byte_order = MSBFirst; + } + } + /* ok, so apparently, image_info->bpp is actually + BYTES per pixel. What fun! */ + switch (static_image[0]->bits_per_pixel) { + case 1: + case 8: + image_info->bpp = 1; + break; + case 16: + image_info->bpp = 2; + break; + case 24: + image_info->bpp = 3; + break; + case 32: + image_info->bpp = 4; + break; + } + xlib_rgb_select_conv (static_image[0], MSB_FIRST); + } +} + + + +#if X_BYTE_ORDER == X_LITTLE_ENDIAN +#define HAIRY_CONVERT_8 +#endif + +#ifdef HAIRY_CONVERT_8 +static void +xlib_rgb_convert_8 (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + int bpl; + unsigned char *obuf, *obptr; + unsigned char *bptr, *bp2; + int r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax; + for (y = 0; y < height; y++) + { + bp2 = bptr; + obptr = obuf; + if (((unsigned long)obuf | (unsigned long) bp2) & 3) + { + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + obptr[0] = colorcube[((r & 0xf0) << 4) | + (g & 0xf0) | + (b >> 4)]; + obptr++; + } + } + else + { + for (x = 0; x < width - 3; x += 4) + { + unsigned int r1b0g0r0; + unsigned int g2r2b1g1; + unsigned int b3g3r3b2; + + r1b0g0r0 = ((unsigned int *)bp2)[0]; + g2r2b1g1 = ((unsigned int *)bp2)[1]; + b3g3r3b2 = ((unsigned int *)bp2)[2]; + ((unsigned int *)obptr)[0] = + colorcube[((r1b0g0r0 & 0xf0) << 4) | + ((r1b0g0r0 & 0xf000) >> 8) | + ((r1b0g0r0 & 0xf00000) >> 20)] | + (colorcube[((r1b0g0r0 & 0xf0000000) >> 20) | + (g2r2b1g1 & 0xf0) | + ((g2r2b1g1 & 0xf000) >> 12)] << 8) | + (colorcube[((g2r2b1g1 & 0xf00000) >> 12) | + ((g2r2b1g1 & 0xf0000000) >> 24) | + ((b3g3r3b2 & 0xf0) >> 4)] << 16) | + (colorcube[((b3g3r3b2 & 0xf000) >> 4) | + ((b3g3r3b2 & 0xf00000) >> 16) | + (b3g3r3b2 >> 28)] << 24); + bp2 += 12; + obptr += 4; + } + for (; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + obptr[0] = colorcube[((r & 0xf0) << 4) | + (g & 0xf0) | + (b >> 4)]; + obptr++; + } + } + bptr += rowstride; + obuf += bpl; + } +} +#else +static void +xlib_rgb_convert_8 (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + int bpl; + unsigned char *obuf, *obptr; + unsigned char *bptr, *bp2; + int r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax; + for (y = 0; y < height; y++) + { + bp2 = bptr; + obptr = obuf; + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + obptr[0] = colorcube[((r & 0xf0) << 4) | + (g & 0xf0) | + (b >> 4)]; + obptr++; + } + bptr += rowstride; + obuf += bpl; + } +} +#endif + +#if 1 + +/* This dither table was generated by Raph Levien using patented + technology (US Patent 5,276,535). The dither table itself is in the + public domain. */ + +#define DM_WIDTH 128 +#define DM_WIDTH_SHIFT 7 +#define DM_HEIGHT 128 +static const unsigned char DM[128][128] = +{ + { 0, 41, 23, 5, 17, 39, 7, 15, 62, 23, 40, 51, 31, 47, 9, 32, 52, 27, 57, 25, 6, 61, 27, 52, 37, 7, 40, 63, 18, 36, 10, 42, 25, 62, 45, 34, 20, 42, 37, 14, 35, 29, 50, 10, 61, 2, 40, 8, 37, 12, 58, 22, 5, 41, 10, 39, 0, 60, 11, 46, 2, 55, 38, 17, 36, 59, 13, 54, 37, 56, 8, 29, 16, 13, 63, 22, 41, 55, 7, 20, 49, 14, 23, 55, 37, 23, 19, 36, 15, 49, 23, 63, 30, 14, 38, 27, 53, 13, 22, 41, 19, 31, 7, 19, 50, 30, 49, 16, 3, 32, 56, 40, 29, 34, 8, 48, 19, 45, 4, 51, 12, 46, 35, 49, 16, 42, 12, 62 }, + { 30, 57, 36, 54, 47, 34, 52, 27, 43, 4, 28, 7, 17, 36, 62, 13, 44, 7, 18, 48, 33, 21, 44, 14, 30, 47, 12, 33, 5, 55, 31, 58, 13, 30, 4, 17, 52, 10, 60, 26, 46, 0, 39, 27, 42, 22, 47, 25, 60, 32, 9, 38, 48, 17, 59, 30, 49, 18, 34, 25, 51, 19, 5, 48, 21, 8, 28, 46, 1, 32, 41, 19, 54, 47, 37, 18, 28, 11, 44, 30, 39, 56, 2, 33, 8, 42, 61, 28, 58, 8, 46, 9, 41, 4, 58, 7, 21, 48, 59, 10, 52, 14, 42, 57, 12, 25, 7, 53, 42, 24, 11, 50, 17, 59, 42, 2, 36, 60, 32, 17, 63, 29, 21, 7, 59, 32, 24, 39 }, + { 22, 8, 16, 32, 3, 25, 13, 57, 18, 45, 58, 39, 55, 20, 5, 42, 23, 34, 63, 1, 51, 10, 58, 4, 60, 23, 53, 27, 44, 21, 3, 48, 8, 50, 43, 54, 27, 32, 5, 55, 21, 58, 12, 53, 6, 36, 14, 50, 17, 29, 53, 15, 24, 52, 7, 36, 13, 42, 4, 53, 9, 35, 61, 26, 56, 32, 49, 15, 62, 23, 6, 60, 2, 31, 4, 48, 58, 38, 15, 61, 5, 25, 47, 28, 50, 15, 7, 40, 3, 32, 33, 52, 25, 50, 35, 42, 61, 3, 28, 36, 23, 63, 4, 33, 46, 62, 36, 23, 60, 6, 54, 28, 4, 37, 23, 55, 25, 8, 42, 54, 14, 6, 56, 38, 19, 52, 4, 46 }, + { 48, 53, 43, 12, 45, 63, 30, 37, 9, 34, 21, 1, 25, 47, 29, 58, 3, 54, 15, 39, 29, 17, 38, 35, 20, 43, 1, 49, 15, 59, 29, 39, 22, 35, 16, 23, 1, 47, 39, 18, 8, 44, 25, 31, 57, 19, 63, 4, 45, 3, 42, 61, 1, 31, 45, 20, 57, 29, 62, 21, 32, 41, 14, 44, 3, 39, 5, 34, 10, 43, 51, 35, 23, 52, 40, 10, 21, 1, 53, 18, 51, 43, 12, 62, 18, 54, 26, 51, 20, 57, 14, 1, 62, 16, 11, 18, 32, 39, 17, 44, 1, 48, 26, 37, 18, 2, 51, 14, 28, 45, 35, 18, 57, 13, 47, 11, 51, 20, 2, 39, 31, 47, 25, 1, 50, 11, 60, 7 }, + { 18, 28, 1, 56, 21, 10, 51, 2, 46, 54, 14, 61, 11, 50, 13, 38, 19, 31, 45, 9, 55, 24, 47, 5, 54, 9, 62, 11, 35, 8, 51, 14, 57, 6, 63, 40, 58, 14, 51, 28, 62, 34, 15, 48, 1, 41, 30, 35, 55, 21, 34, 11, 49, 37, 8, 52, 4, 23, 15, 43, 1, 58, 11, 23, 53, 16, 55, 26, 58, 18, 27, 12, 45, 14, 25, 63, 42, 33, 27, 35, 9, 31, 21, 38, 1, 44, 34, 12, 48, 38, 21, 44, 29, 47, 26, 53, 1, 46, 54, 8, 59, 29, 11, 55, 22, 41, 33, 20, 39, 1, 48, 9, 44, 32, 5, 62, 29, 44, 57, 23, 10, 58, 34, 43, 15, 37, 26, 33 }, + { 51, 38, 59, 24, 35, 42, 19, 60, 5, 32, 41, 26, 43, 33, 7, 53, 48, 11, 59, 23, 42, 2, 61, 30, 16, 40, 32, 24, 56, 41, 19, 33, 37, 26, 47, 9, 31, 22, 2, 45, 9, 54, 4, 37, 21, 52, 11, 23, 7, 57, 16, 25, 55, 18, 63, 27, 46, 39, 56, 10, 50, 37, 29, 47, 19, 63, 24, 9, 46, 2, 39, 60, 9, 57, 30, 7, 49, 11, 59, 3, 45, 57, 5, 60, 29, 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4, 45, 26, 5, 38, 13, 44, 2, 50, 17, 37, 52, 2, 13, 28, 58, 24, 51, 21, 8, 34, 48, 27, 42, 18, 51, 31, 56, 5, 36, 38, 44, 4, 17, 26, 11, 38, 23, 42, 8, 56, 39, 24, 51, 5, 56, 21, 59, 14, 6, 18, 42, 22, 35, 16, 37, 3, 25, 39, 46, 63, 5, 50, 17, 58, 8, 55, 3, 50, 12, 43, 17, 47, 2, 51, 9, 62, 12, 1, 35, 13, 50, 1, 37, 12, 51, 19, 29, 46, 59, 22, 58, 33, 45, 22, 60, 10, 32, 61, 39, 8, 33, 25, 36, 20, 60, 38, 4, 21, 5, 28, 45, 12, 18, 42, 11, 49, 1, 27, 40, 6, 30 }, + { 24, 16, 42, 1, 50, 10, 48, 17, 33, 43, 24, 48, 21, 55, 31, 42, 10, 21, 63, 35, 49, 6, 33, 13, 41, 53, 10, 20, 60, 6, 53, 26, 12, 41, 22, 60, 14, 28, 63, 33, 49, 3, 45, 16, 48, 26, 14, 46, 18, 30, 35, 26, 8, 50, 29, 51, 25, 57, 12, 47, 53, 9, 62, 20, 54, 2, 36, 15, 40, 28, 33, 13, 38, 24, 46, 1, 29, 56, 33, 20, 44, 24, 41, 26, 57, 20, 63, 8, 30, 55, 5, 41, 62, 8, 34, 2, 37, 10, 19, 6, 37, 1, 53, 23, 5, 27, 58, 22, 43, 12, 50, 26, 9, 34, 54, 32, 49, 1, 59, 37, 22, 46, 25, 36, 51, 15, 54, 46 }, + { 52, 7, 45, 33, 26, 58, 14, 60, 7, 54, 3, 58, 8, 34, 14, 5, 59, 30, 18, 44, 8, 22, 48, 62, 3, 26, 55, 38, 23, 16, 39, 1, 62, 24, 49, 9, 53, 19, 46, 7, 19, 60, 31, 58, 2, 34, 53, 7, 59, 2, 62, 42, 46, 19, 36, 11, 44, 4, 38, 28, 1, 43, 32, 51, 12, 29, 56, 22, 52, 2, 62, 49, 22, 60, 14, 35, 63, 5, 25, 57, 14, 53, 4, 46, 18, 31, 42, 22, 47, 20, 58, 31, 16, 43, 23, 54, 30, 42, 52, 57, 29, 49, 30, 13, 45, 48, 16, 55, 6, 63, 1, 44, 14, 58, 19, 47, 15, 24, 51, 34, 6, 55, 5, 63, 20, 41, 21, 9 }, + { 30, 62, 18, 55, 5, 23, 39, 29, 49, 30, 15, 36, 28, 46, 60, 25, 39, 46, 4, 32, 61, 40, 15, 30, 36, 45, 14, 2, 49, 33, 57, 45, 18, 32, 3, 45, 30, 2, 35, 52, 40, 27, 13, 21, 38, 63, 20, 28, 37, 23, 16, 10, 13, 55, 2, 62, 21, 32, 60, 17, 58, 23, 5, 40, 16, 48, 7, 45, 10, 26, 43, 19, 6, 31, 52, 21, 39, 16, 48, 9, 37, 28, 36, 55, 7, 48, 3, 59, 15, 45, 25, 1, 53, 13, 47, 7, 62, 15, 4, 25, 12, 41, 18, 60, 38, 11, 34, 19, 39, 31, 29, 56, 23, 42, 3, 27, 60, 41, 8, 16, 61, 29, 43, 9, 32, 2, 60, 34 }, + { 3, 38, 13, 37, 52, 44, 2, 19, 12, 42, 63, 19, 40, 1, 20, 50, 12, 55, 15, 56, 27, 1, 54, 11, 57, 18, 32, 63, 44, 4, 29, 13, 37, 61, 35, 16, 42, 57, 12, 22, 6, 55, 43, 10, 50, 5, 44, 11, 48, 52, 34, 58, 28, 41, 38, 30, 7, 52, 11, 49, 30, 14, 45, 27, 59, 34, 21, 38, 32, 58, 11, 36, 56, 42, 9, 41, 3, 54, 31, 42, 0, 60, 16, 11, 39, 24, 52, 33, 6, 36, 10, 40, 32, 60, 26, 20, 39, 28, 47, 34, 63, 8, 54, 3, 24, 56, 0, 51, 13, 47, 16, 40, 7, 35, 52, 11, 36, 4, 57, 30, 39, 13, 18, 50, 58, 28, 12, 48 }, + { 57, 24, 49, 21, 10, 31, 61, 36, 56, 0, 22, 53, 11, 56, 32, 7, 36, 27, 41, 9, 46, 19, 34, 42, 25, 7, 50, 9, 28, 21, 54, 8, 50, 7, 27, 59, 10, 25, 48, 62, 37, 0, 33, 58, 25, 18, 32, 61, 0, 15, 45, 5, 50, 3, 23, 55, 47, 17, 40, 6, 60, 34, 53, 8, 41, 0, 61, 13, 54, 4, 46, 28, 0, 17, 48, 27, 58, 13, 23, 61, 33, 21, 50, 30, 62, 8, 14, 29, 56, 27, 61, 49, 17, 2, 44, 11, 51, 0, 59, 17, 40, 20, 32, 47, 36, 21, 42, 28, 60, 4, 54, 10, 59, 17, 30, 62, 21, 43, 26, 48, 0, 56, 36, 25, 8, 44, 39, 17 }, + { 10, 42, 4, 59, 27, 47, 8, 23, 51, 32, 45, 6, 37, 26, 48, 43, 62, 0, 21, 53, 38, 12, 51, 5, 60, 47, 24, 37, 59, 15, 35, 47, 22, 55, 0, 50, 21, 40, 6, 29, 15, 52, 24, 8, 41, 55, 13, 29, 40, 56, 24, 31, 19, 33, 61, 15, 0, 35, 24, 42, 21, 2, 19, 57, 24, 15, 30, 50, 20, 25, 40, 16, 57, 34, 61, 8, 29, 45, 6, 49, 11, 47, 2, 44, 19, 57, 38, 50, 12, 42, 21, 4, 35, 52, 28, 56, 23, 36, 13, 45, 4, 52, 27, 14, 6, 62, 9, 45, 21, 37, 25, 46, 33, 49, 0, 44, 7, 53, 13, 19, 53, 31, 3, 47, 15, 56, 22, 51 }, + { 35, 28, 53, 32, 1, 16, 54, 40, 9, 17, 25, 58, 14, 59, 3, 22, 16, 51, 31, 5, 23, 58, 28, 17, 35, 20, 0, 42, 11, 52, 3, 31, 41, 17, 43, 13, 32, 54, 18, 60, 32, 45, 17, 49, 2, 36, 51, 22, 7, 36, 9, 63, 48, 12, 46, 26, 43, 28, 63, 13, 48, 37, 51, 33, 5, 47, 55, 9, 42, 63, 7, 51, 24, 12, 37, 19, 55, 34, 18, 38, 15, 28, 54, 34, 5, 43, 22, 0, 48, 14, 54, 24, 58, 9, 38, 5, 32, 55, 21, 30, 49, 9, 59, 43, 30, 51, 35, 26, 7, 53, 2, 22, 14, 27, 57, 18, 38, 24, 33, 45, 10, 41, 20, 60, 37, 5, 32, 0 }, + { 63, 19, 15, 40, 62, 35, 14, 28, 46, 61, 4, 49, 35, 10, 29, 54, 33, 8, 45, 62, 37, 1, 43, 55, 10, 52, 61, 30, 19, 40, 25, 62, 11, 38, 27, 58, 36, 3, 46, 8, 39, 4, 62, 28, 47, 20, 4, 54, 47, 27, 43, 1, 21, 38, 8, 58, 10, 54, 4, 56, 9, 26, 12, 39, 60, 27, 18, 37, 1, 31, 35, 5, 45, 50, 2, 43, 26, 1, 59, 23, 56, 40, 7, 26, 58, 17, 32, 63, 25, 39, 7, 31, 45, 19, 63, 15, 48, 8, 37, 61, 16, 34, 1, 56, 18, 3, 15, 58, 49, 32, 63, 41, 55, 5, 40, 22, 50, 6, 59, 2, 63, 23, 52, 11, 26, 61, 44, 23 }, + { 11, 56, 46, 6, 22, 43, 58, 3, 34, 21, 38, 30, 18, 44, 52, 13, 41, 57, 17, 28, 14, 49, 25, 7, 33, 39, 26, 6, 56, 48, 1, 20, 56, 5, 46, 9, 19, 51, 30, 25, 56, 21, 35, 14, 57, 42, 16, 33, 10, 57, 17, 59, 41, 25, 53, 37, 20, 40, 30, 18, 31, 62, 44, 22, 3, 44, 11, 48, 23, 53, 18, 60, 29, 22, 62, 15, 53, 47, 10, 41, 3, 19, 52, 36, 13, 46, 10, 35, 3, 61, 41, 16, 1, 50, 26, 42, 18, 46, 2, 25, 54, 20, 39, 23, 47, 31, 41, 12, 38, 17, 8, 19, 31, 48, 12, 61, 9, 54, 29, 35, 15, 38, 6, 43, 34, 14, 7, 47 }, + { 39, 2, 33, 26, 53, 8, 18, 50, 41, 12, 53, 1, 63, 24, 19, 39, 2, 24, 47, 10, 60, 38, 19, 63, 48, 4, 15, 45, 32, 14, 60, 36, 29, 53, 23, 63, 34, 12, 61, 1, 43, 11, 53, 30, 1, 26, 60, 45, 23, 39, 3, 29, 12, 50, 4, 16, 51, 3, 45, 36, 50, 1, 16, 54, 35, 14, 57, 30, 58, 9, 46, 14, 41, 10, 32, 38, 4, 30, 21, 51, 32, 63, 25, 1, 60, 27, 53, 18, 51, 22, 28, 55, 34, 12, 40, 3, 60, 29, 57, 41, 6, 44, 11, 53, 8, 61, 24, 57, 1, 28, 44, 59, 36, 3, 34, 25, 41, 31, 16, 44, 22, 47, 28, 58, 1, 49, 54, 29 }, + { 58, 25, 50, 13, 38, 30, 60, 24, 6, 57, 27, 42, 9, 45, 6, 61, 30, 50, 4, 34, 29, 3, 46, 13, 22, 42, 58, 28, 9, 39, 23, 44, 7, 15, 44, 2, 40, 15, 47, 41, 23, 37, 7, 59, 38, 11, 34, 6, 62, 14, 52, 35, 55, 19, 32, 61, 33, 24, 57, 6, 22, 59, 29, 7, 49, 25, 40, 3, 17, 39, 27, 52, 0, 55, 16, 57, 24, 61, 36, 6, 29, 12, 48, 39, 20, 44, 6, 40, 33, 5, 48, 10, 57, 36, 22, 51, 33, 9, 24, 12, 62, 29, 50, 35, 14, 43, 5, 33, 47, 52, 13, 23, 10, 51, 56, 16, 46, 1, 49, 4, 61, 9, 52, 18, 31, 21, 36, 17 }, + { 19, 42, 9, 48, 2, 44, 11, 37, 48, 20, 33, 16, 55, 35, 49, 15, 37, 20, 59, 16, 53, 22, 56, 31, 50, 11, 34, 54, 16, 51, 4, 49, 33, 53, 21, 28, 56, 24, 31, 9, 52, 16, 48, 24, 44, 13, 51, 20, 31, 49, 18, 6, 34, 2, 44, 14, 47, 8, 15, 43, 13, 41, 33, 52, 20, 61, 7, 51, 34, 62, 4, 20, 36, 33, 43, 8, 46, 13, 53, 17, 45, 42, 9, 31, 52, 11, 30, 56, 13, 59, 17, 44, 27, 6, 62, 11, 43, 17, 49, 38, 26, 2, 16, 27, 58, 21, 54, 18, 26, 5, 35, 61, 43, 27, 7, 39, 14, 58, 37, 55, 20, 33, 13, 40, 62, 10, 55, 5 }, + { 51, 14, 61, 29, 59, 20, 55, 31, 0, 49, 11, 60, 3, 26, 22, 56, 0, 40, 12, 43, 41, 8, 36, 0, 17, 57, 24, 2, 46, 26, 61, 18, 0, 38, 12, 59, 6, 49, 3, 57, 19, 63, 5, 33, 18, 54, 28, 56, 0, 43, 26, 46, 63, 27, 56, 22, 27, 54, 38, 28, 63, 24, 10, 45, 0, 31, 42, 21, 12, 25, 44, 49, 59, 6, 26, 50, 3, 34, 27, 59, 0, 35, 62, 16, 4, 58, 47, 0, 43, 24, 37, 2, 54, 20, 46, 31, 0, 56, 34, 5, 55, 45, 60, 37, 0, 40, 10, 38, 63, 46, 15, 20, 0, 53, 21, 62, 30, 11, 24, 27, 40, 0, 57, 26, 3, 45, 27, 35 }, +}; + +#else +#define DM_WIDTH 8 +#define DM_WIDTH_SHIFT 3 +#define DM_HEIGHT 8 +static const unsigned char DM[8][8] = +{ + { 0, 32, 8, 40, 2, 34, 10, 42 }, + { 48, 16, 56, 24, 50, 18, 58, 26 }, + { 12, 44, 4, 36, 14, 46, 6, 38 }, + { 60, 28, 52, 20, 62, 30, 54, 22 }, + { 3, 35, 11, 43, 1, 33, 9, 41 }, + { 51, 19, 59, 27, 49, 17, 57, 25 }, + { 15, 47, 7, 39, 13, 45, 5, 37 }, + { 63, 31, 55, 23, 61, 29, 53, 21 } +}; +#endif + +static unsigned int *DM_565 = NULL; + +static void +xlib_rgb_preprocess_dm_565 (void) +{ + int i; + unsigned int dith; + + if (DM_565 == NULL) + { + DM_565 = malloc(sizeof(unsigned int) * DM_WIDTH * DM_HEIGHT); + for (i = 0; i < DM_WIDTH * DM_HEIGHT; i++) + { + dith = DM[0][i] >> 3; + DM_565[i] = (dith << 20) | dith | (((7 - dith) >> 1) << 10); +#ifdef VERBOSE + printf ("%i %x %x\n", i, dith, DM_565[i]); +#endif + } + } +} + +static void +xlib_rgb_convert_8_d666 (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + int bpl; + unsigned char *obuf, *obptr; + unsigned char *bptr, *bp2; + int r, g, b; + const unsigned char *dmp; + int dith; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax; + for (y = 0; y < height; y++) + { + dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; + bp2 = bptr; + obptr = obuf; + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + dith = (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) | 7; + r = ((r * 5) + dith) >> 8; + g = ((g * 5) + (262 - dith)) >> 8; + b = ((b * 5) + dith) >> 8; + obptr[0] = colorcube_d[(r << 6) | (g << 3) | b]; + obptr++; + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_8_d (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, + XlibRgbCmap *cmap) +{ + int x, y; + int bpl; + unsigned char *obuf, *obptr; + unsigned char *bptr, *bp2; + int r, g, b; + const unsigned char *dmp; + int dith; + int rs, gs, bs; + + bptr = buf; + bpl = image->bytes_per_line; + rs = image_info->nred_shades - 1; + gs = image_info->ngreen_shades - 1; + bs = image_info->nblue_shades - 1; + obuf = ((unsigned char *)image->data) + ay * bpl + ax; + for (y = 0; y < height; y++) + { + dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; + bp2 = bptr; + obptr = obuf; + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + dith = (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) | 7; + r = ((r * rs) + dith) >> 8; + g = ((g * gs) + (262 - dith)) >> 8; + b = ((b * bs) + dith) >> 8; + obptr[0] = colorcube_d[(r << 6) | (g << 3) | b]; + obptr++; + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_8_indexed (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + int bpl; + unsigned char *obuf, *obptr; + unsigned char *bptr, *bp2; + unsigned char c; + unsigned char *lut; + + lut = cmap->lut; + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax; + for (y = 0; y < height; y++) + { + bp2 = bptr; + obptr = obuf; + for (x = 0; x < width; x++) + { + c = *bp2++; + obptr[0] = lut[c]; + obptr++; + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_gray8 (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + int bpl; + unsigned char *obuf, *obptr; + unsigned char *bptr, *bp2; + int r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax; + for (y = 0; y < height; y++) + { + bp2 = bptr; + obptr = obuf; + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + obptr[0] = (g + ((b + r) >> 1)) >> 1; + obptr++; + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_gray8_gray (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int y; + int bpl; + unsigned char *obuf; + unsigned char *bptr; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax; + for (y = 0; y < height; y++) + { + memcpy (obuf, bptr, (unsigned int)width); + bptr += rowstride; + obuf += bpl; + } +} + +#if X_BYTE_ORDER == X_LITTLE_ENDIAN +#define HAIRY_CONVERT_565 +#endif + +#ifdef HAIRY_CONVERT_565 +/* Render a 24-bit RGB image in buf into the GdkImage, without dithering. + This assumes native byte ordering - what should really be done is to + check whether static_image->byte_order is consistent with the _ENDIAN + config flag, and if not, use a different function. + + This one is even faster than the one below - its inner loop loads 3 + words (i.e. 4 24-bit pixels), does a lot of shifting and masking, + then writes 2 words. */ +static void +xlib_rgb_convert_565 (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf, *obptr; + int bpl; + unsigned char *bptr, *bp2; + unsigned char r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; + for (y = 0; y < height; y++) + { + bp2 = bptr; + obptr = obuf; + if (((unsigned long)obuf | (unsigned long) bp2) & 3) + { + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + ((unsigned short *)obptr)[0] = ((r & 0xf8) << 8) | + ((g & 0xfc) << 3) | + (b >> 3); + obptr += 2; + } + } + else + { + for (x = 0; x < width - 3; x += 4) + { + unsigned int r1b0g0r0; + unsigned int g2r2b1g1; + unsigned int b3g3r3b2; + + r1b0g0r0 = ((unsigned int *)bp2)[0]; + g2r2b1g1 = ((unsigned int *)bp2)[1]; + b3g3r3b2 = ((unsigned int *)bp2)[2]; + ((unsigned int *)obptr)[0] = + ((r1b0g0r0 & 0xf8) << 8) | + ((r1b0g0r0 & 0xfc00) >> 5) | + ((r1b0g0r0 & 0xf80000) >> 19) | + (r1b0g0r0 & 0xf8000000) | + ((g2r2b1g1 & 0xfc) << 19) | + ((g2r2b1g1 & 0xf800) << 5); + ((unsigned int *)obptr)[1] = + ((g2r2b1g1 & 0xf80000) >> 8) | + ((g2r2b1g1 & 0xfc000000) >> 21) | + ((b3g3r3b2 & 0xf8) >> 3) | + ((b3g3r3b2 & 0xf800) << 16) | + ((b3g3r3b2 & 0xfc0000) << 3) | + ((b3g3r3b2 & 0xf8000000) >> 11); + bp2 += 12; + obptr += 8; + } + for (; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + ((unsigned short *)obptr)[0] = ((r & 0xf8) << 8) | + ((g & 0xfc) << 3) | + (b >> 3); + obptr += 2; + } + } + bptr += rowstride; + obuf += bpl; + } +} +#else +/* Render a 24-bit RGB image in buf into the GdkImage, without dithering. + This assumes native byte ordering - what should really be done is to + check whether static_image->byte_order is consistent with the _ENDIAN + config flag, and if not, use a different function. + + This routine is faster than the one included with Gtk 1.0 for a number + of reasons: + + 1. Shifting instead of lookup tables (less memory traffic). + + 2. Much less register pressure, especially because shifts are + in the code. + + 3. A memcpy is avoided (i.e. the transfer function). + + 4. On big-endian architectures, byte swapping is avoided. + + That said, it wouldn't be hard to make it even faster - just make an + inner loop that reads 3 words (i.e. 4 24-bit pixels), does a lot of + shifting and masking, then writes 2 words. +*/ +static void +xlib_rgb_convert_565 (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf; + int bpl; + unsigned char *bptr, *bp2; + unsigned char r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; + for (y = 0; y < height; y++) + { + bp2 = bptr; + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + ((unsigned short *)obuf)[x] = ((r & 0xf8) << 8) | + ((g & 0xfc) << 3) | + (b >> 3); + } + bptr += rowstride; + obuf += bpl; + } +} +#endif + +#ifdef HAIRY_CONVERT_565 +static void +xlib_rgb_convert_565_gray (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf, *obptr; + int bpl; + unsigned char *bptr, *bp2; + unsigned char g; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; + for (y = 0; y < height; y++) + { + bp2 = bptr; + obptr = obuf; + if (((unsigned long)obuf | (unsigned long) bp2) & 3) + { + for (x = 0; x < width; x++) + { + g = *bp2++; + ((unsigned short *)obptr)[0] = ((g & 0xf8) << 8) | + ((g & 0xfc) << 3) | + (g >> 3); + obptr += 2; + } + } + else + { + for (x = 0; x < width - 3; x += 4) + { + unsigned int g3g2g1g0; + + g3g2g1g0 = ((unsigned int *)bp2)[0]; + ((unsigned int *)obptr)[0] = + ((g3g2g1g0 & 0xf8) << 8) | + ((g3g2g1g0 & 0xfc) << 3) | + ((g3g2g1g0 & 0xf8) >> 3) | + (g3g2g1g0 & 0xf800) << 16 | + ((g3g2g1g0 & 0xfc00) << 11) | + ((g3g2g1g0 & 0xf800) << 5); + ((unsigned int *)obptr)[1] = + ((g3g2g1g0 & 0xf80000) >> 8) | + ((g3g2g1g0 & 0xfc0000) >> 13) | + ((g3g2g1g0 & 0xf80000) >> 19) | + (g3g2g1g0 & 0xf8000000) | + ((g3g2g1g0 & 0xfc000000) >> 5) | + ((g3g2g1g0 & 0xf8000000) >> 11); + bp2 += 4; + obptr += 8; + } + for (; x < width; x++) + { + g = *bp2++; + ((unsigned short *)obptr)[0] = ((g & 0xf8) << 8) | + ((g & 0xfc) << 3) | + (g >> 3); + obptr += 2; + } + } + bptr += rowstride; + obuf += bpl; + } +} +#else +static void +xlib_rgb_convert_565_gray (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf; + int bpl; + unsigned char *bptr, *bp2; + unsigned char g; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; + for (y = 0; y < height; y++) + { + bp2 = bptr; + for (x = 0; x < width; x++) + { + g = *bp2++; + ((unsigned short *)obuf)[x] = ((g & 0xf8) << 8) | + ((g & 0xfc) << 3) | + (g >> 3); + } + bptr += rowstride; + obuf += bpl; + } +} +#endif + +static void +xlib_rgb_convert_565_br (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf; + int bpl; + unsigned char *bptr, *bp2; + unsigned char r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; + for (y = 0; y < height; y++) + { + bp2 = bptr; + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + /* final word is: + g4 g3 g2 b7 b6 b5 b4 b3 r7 r6 r5 r4 r3 g7 g6 g5 + */ + ((unsigned short *)obuf)[x] = (r & 0xf8) | + ((g & 0xe0) >> 5) | + ((g & 0x1c) << 11) | + ((b & 0xf8) << 5); + } + bptr += rowstride; + obuf += bpl; + } +} + +/* Thanks to Ray Lehtiniemi for a patch that resulted in a ~25% speedup + in this mode. */ +#ifdef HAIRY_CONVERT_565 +static void +xlib_rgb_convert_565_d (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + /* Now this is what I'd call some highly tuned code! */ + int x, y; + unsigned char *obuf, *obptr; + int bpl; + unsigned char *bptr, *bp2; + + width += x_align; + height += y_align; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; + for (y = y_align; y < height; y++) + { + unsigned int *dmp = DM_565 + ((y & (DM_HEIGHT - 1)) << DM_WIDTH_SHIFT); + bp2 = bptr; + obptr = obuf; + if (((unsigned long)obuf | (unsigned long) bp2) & 3) + { + for (x = x_align; x < width; x++) + { + int rgb = *bp2++ << 20; + rgb += *bp2++ << 10; + rgb += *bp2++; + rgb += dmp[x & (DM_WIDTH - 1)]; + rgb += 0x10040100 + - ((rgb & 0x1e0001e0) >> 5) + - ((rgb & 0x00070000) >> 6); + + ((unsigned short *)obptr)[0] = + ((rgb & 0x0f800000) >> 12) | + ((rgb & 0x0003f000) >> 7) | + ((rgb & 0x000000f8) >> 3); + obptr += 2; + } + } + else + { + for (x = x_align; x < width - 3; x += 4) + { + unsigned int r1b0g0r0; + unsigned int g2r2b1g1; + unsigned int b3g3r3b2; + unsigned int rgb02, rgb13; + + r1b0g0r0 = ((unsigned int *)bp2)[0]; + g2r2b1g1 = ((unsigned int *)bp2)[1]; + b3g3r3b2 = ((unsigned int *)bp2)[2]; + rgb02 = + ((r1b0g0r0 & 0xff) << 20) + + ((r1b0g0r0 & 0xff00) << 2) + + ((r1b0g0r0 & 0xff0000) >> 16) + + dmp[x & (DM_WIDTH - 1)]; + rgb02 += 0x10040100 + - ((rgb02 & 0x1e0001e0) >> 5) + - ((rgb02 & 0x00070000) >> 6); + rgb13 = + ((r1b0g0r0 & 0xff000000) >> 4) + + ((g2r2b1g1 & 0xff) << 10) + + ((g2r2b1g1 & 0xff00) >> 8) + + dmp[(x + 1) & (DM_WIDTH - 1)]; + rgb13 += 0x10040100 + - ((rgb13 & 0x1e0001e0) >> 5) + - ((rgb13 & 0x00070000) >> 6); + ((unsigned int *)obptr)[0] = + ((rgb02 & 0x0f800000) >> 12) | + ((rgb02 & 0x0003f000) >> 7) | + ((rgb02 & 0x000000f8) >> 3) | + ((rgb13 & 0x0f800000) << 4) | + ((rgb13 & 0x0003f000) << 9) | + ((rgb13 & 0x000000f8) << 13); + rgb02 = + ((g2r2b1g1 & 0xff0000) << 4) + + ((g2r2b1g1 & 0xff000000) >> 14) + + (b3g3r3b2 & 0xff) + + dmp[(x + 2) & (DM_WIDTH - 1)]; + rgb02 += 0x10040100 + - ((rgb02 & 0x1e0001e0) >> 5) + - ((rgb02 & 0x00070000) >> 6); + rgb13 = + ((b3g3r3b2 & 0xff00) << 12) + + ((b3g3r3b2 & 0xff0000) >> 6) + + ((b3g3r3b2 & 0xff000000) >> 24) + + dmp[(x + 3) & (DM_WIDTH - 1)]; + rgb13 += 0x10040100 + - ((rgb13 & 0x1e0001e0) >> 5) + - ((rgb13 & 0x00070000) >> 6); + ((unsigned int *)obptr)[1] = + ((rgb02 & 0x0f800000) >> 12) | + ((rgb02 & 0x0003f000) >> 7) | + ((rgb02 & 0x000000f8) >> 3) | + ((rgb13 & 0x0f800000) << 4) | + ((rgb13 & 0x0003f000) << 9) | + ((rgb13 & 0x000000f8) << 13); + bp2 += 12; + obptr += 8; + } + for (; x < width; x++) + { + int rgb = *bp2++ << 20; + rgb += *bp2++ << 10; + rgb += *bp2++; + rgb += dmp[x & (DM_WIDTH - 1)]; + rgb += 0x10040100 + - ((rgb & 0x1e0001e0) >> 5) + - ((rgb & 0x00070000) >> 6); + + ((unsigned short *)obptr)[0] = + ((rgb & 0x0f800000) >> 12) | + ((rgb & 0x0003f000) >> 7) | + ((rgb & 0x000000f8) >> 3); + obptr += 2; + } + } + bptr += rowstride; + obuf += bpl; + } +} +#else +static void +xlib_rgb_convert_565_d (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf; + int bpl; + unsigned char *bptr; + + width += x_align; + height += y_align; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + (ax - x_align) * 2; + + for (y = y_align; y < height; y++) + { + unsigned int *dmp = DM_565 + ((y & (DM_HEIGHT - 1)) << DM_WIDTH_SHIFT); + unsigned char *bp2 = bptr; + + for (x = x_align; x < width; x++) + { + int rgb = *bp2++ << 20; + rgb += *bp2++ << 10; + rgb += *bp2++; + rgb += dmp[x & (DM_WIDTH - 1)]; + rgb += 0x10040100 + - ((rgb & 0x1e0001e0) >> 5) + - ((rgb & 0x00070000) >> 6); + + ((unsigned short *)obuf)[x] = + ((rgb & 0x0f800000) >> 12) | + ((rgb & 0x0003f000) >> 7) | + ((rgb & 0x000000f8) >> 3); + } + + bptr += rowstride; + obuf += bpl; + } +} +#endif + +static void +xlib_rgb_convert_555 (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf; + int bpl; + unsigned char *bptr, *bp2; + unsigned char r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; + for (y = 0; y < height; y++) + { + bp2 = bptr; + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + ((unsigned short *)obuf)[x] = ((r & 0xf8) << 7) | + ((g & 0xf8) << 2) | + (b >> 3); + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_555_br (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf; + int bpl; + unsigned char *bptr, *bp2; + unsigned char r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2; + for (y = 0; y < height; y++) + { + bp2 = bptr; + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + /* final word is: + g5 g4 g3 b7 b6 b5 b4 b3 0 r7 r6 r5 r4 r3 g7 g6 + */ + ((unsigned short *)obuf)[x] = ((r & 0xf8) >> 1) | + ((g & 0xc0) >> 6) | + ((g & 0x18) << 10) | + ((b & 0xf8) << 5); + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_888_msb (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int y; + unsigned char *obuf; + int bpl; + unsigned char *bptr; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 3; + for (y = 0; y < height; y++) + { + memcpy (obuf, bptr, (unsigned int)(width + width + width)); + bptr += rowstride; + obuf += bpl; + } +} + +/* todo: optimize this */ +#if X_BYTE_ORDER == X_LITTLE_ENDIAN +#define HAIRY_CONVERT_888 +#endif + +#ifdef HAIRY_CONVERT_888 +static void +xlib_rgb_convert_888_lsb (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf, *obptr; + int bpl; + unsigned char *bptr, *bp2; + int r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 3; + for (y = 0; y < height; y++) + { + bp2 = bptr; + obptr = obuf; + if (((unsigned long)obuf | (unsigned long) bp2) & 3) + { + for (x = 0; x < width; x++) + { + r = bp2[0]; + g = bp2[1]; + b = bp2[2]; + *obptr++ = b; + *obptr++ = g; + *obptr++ = r; + bp2 += 3; + } + } + else + { + for (x = 0; x < width - 3; x += 4) + { + unsigned int r1b0g0r0; + unsigned int g2r2b1g1; + unsigned int b3g3r3b2; + + r1b0g0r0 = ((unsigned int *)bp2)[0]; + g2r2b1g1 = ((unsigned int *)bp2)[1]; + b3g3r3b2 = ((unsigned int *)bp2)[2]; + ((unsigned int *)obptr)[0] = + (r1b0g0r0 & 0xff00) | + ((r1b0g0r0 & 0xff0000) >> 16) | + (((g2r2b1g1 & 0xff00) | (r1b0g0r0 & 0xff)) << 16); + ((unsigned int *)obptr)[1] = + (g2r2b1g1 & 0xff0000ff) | + ((r1b0g0r0 & 0xff000000) >> 16) | + ((b3g3r3b2 & 0xff) << 16); + ((unsigned int *)obptr)[2] = + (((g2r2b1g1 & 0xff0000) | (b3g3r3b2 & 0xff000000)) >> 16) | + ((b3g3r3b2 & 0xff00) << 16) | + ((b3g3r3b2 & 0xff0000)); + bp2 += 12; + obptr += 12; + } + for (; x < width; x++) + { + r = bp2[0]; + g = bp2[1]; + b = bp2[2]; + *obptr++ = b; + *obptr++ = g; + *obptr++ = r; + bp2 += 3; + } + } + bptr += rowstride; + obuf += bpl; + } +} +#else +static void +xlib_rgb_convert_888_lsb (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf; + int bpl; + unsigned char *bptr, *bp2; + int r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 3; + for (y = 0; y < height; y++) + { + bp2 = bptr; + for (x = 0; x < width; x++) + { + r = bp2[0]; + g = bp2[1]; + b = bp2[2]; + obuf[x * 3] = b; + obuf[x * 3 + 1] = g; + obuf[x * 3 + 2] = r; + bp2 += 3; + } + bptr += rowstride; + obuf += bpl; + } +} +#endif + +/* convert 24-bit packed to 32-bit unpacked */ +/* todo: optimize this */ +static void +xlib_rgb_convert_0888 (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf; + int bpl; + unsigned char *bptr, *bp2; + int r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 4; + for (y = 0; y < height; y++) + { + bp2 = bptr; + for (x = 0; x < width; x++) + { + r = bp2[0]; + g = bp2[1]; + b = bp2[2]; + ((unsigned int *)obuf)[x] = (r << 16) | (g << 8) | b; + bp2 += 3; + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_0888_br (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf; + int bpl; + unsigned char *bptr, *bp2; + int r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 4; + for (y = 0; y < height; y++) + { + bp2 = bptr; + for (x = 0; x < width; x++) + { + r = bp2[0]; + g = bp2[1]; + b = bp2[2]; + ((unsigned int *)obuf)[x] = (b << 24) | (g << 16) | (r << 8); + bp2 += 3; + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_8880_br (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf; + int bpl; + unsigned char *bptr, *bp2; + int r, g, b; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * 4; + for (y = 0; y < height; y++) + { + bp2 = bptr; + for (x = 0; x < width; x++) + { + r = bp2[0]; + g = bp2[1]; + b = bp2[2]; + ((unsigned int *)obuf)[x] = (b << 16) | (g << 8) | r; + bp2 += 3; + } + bptr += rowstride; + obuf += bpl; + } +} + +/* Generic truecolor/directcolor conversion function. Slow, but these + are oddball modes. */ +static void +xlib_rgb_convert_truecolor_lsb (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, + XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf, *obptr; + int bpl; + unsigned char *bptr, *bp2; + int r, g, b; + int r_right, r_left; + int g_right, g_left; + int b_right, b_left; + int bpp; + unsigned int pixel; + int i; + + r_right = 8 - image_info->red_prec; + r_left = image_info->red_shift; + g_right = 8 - image_info->green_prec; + g_left = image_info->green_shift; + b_right = 8 - image_info->blue_prec; + b_left = image_info->blue_shift; + bpp = image_info->bpp; + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * bpp; + for (y = 0; y < height; y++) + { + obptr = obuf; + bp2 = bptr; + for (x = 0; x < width; x++) + { + r = bp2[0]; + g = bp2[1]; + b = bp2[2]; + pixel = ((r >> r_right) << r_left) | + ((g >> g_right) << g_left) | + ((b >> b_right) << b_left); + for (i = 0; i < bpp; i++) + { + *obptr++ = pixel & 0xff; + pixel >>= 8; + } + bp2 += 3; + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_truecolor_lsb_d (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, + XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf, *obptr; + int bpl; + unsigned char *bptr, *bp2; + int r, g, b; + int r_right, r_left, r_prec; + int g_right, g_left, g_prec; + int b_right, b_left, b_prec; + int bpp; + unsigned int pixel; + int i; + int dith; + int r1, g1, b1; + const unsigned char *dmp; + + r_right = 8 - image_info->red_prec; + r_left = image_info->red_shift; + r_prec = image_info->red_prec; + g_right = 8 - image_info->green_prec; + g_left = image_info->green_shift; + g_prec = image_info->green_prec; + b_right = 8 - image_info->blue_prec; + b_left = image_info->blue_shift; + b_prec = image_info->blue_prec; + bpp = image_info->bpp; + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * bpp; + for (y = 0; y < height; y++) + { + dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; + obptr = obuf; + bp2 = bptr; + for (x = 0; x < width; x++) + { + r = bp2[0]; + g = bp2[1]; + b = bp2[2]; + dith = dmp[(x_align + x) & (DM_WIDTH - 1)] << 2; + r1 = r + (dith >> r_prec); + g1 = g + ((252 - dith) >> g_prec); + b1 = b + (dith >> b_prec); + pixel = (((r1 - (r1 >> r_prec)) >> r_right) << r_left) | + (((g1 - (g1 >> g_prec)) >> g_right) << g_left) | + (((b1 - (b1 >> b_prec)) >> b_right) << b_left); + for (i = 0; i < bpp; i++) + { + *obptr++ = pixel & 0xff; + pixel >>= 8; + } + bp2 += 3; + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_truecolor_msb (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, + XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf, *obptr; + int bpl; + unsigned char *bptr, *bp2; + int r, g, b; + int r_right, r_left; + int g_right, g_left; + int b_right, b_left; + int bpp; + unsigned int pixel; + int shift, shift_init; + + r_right = 8 - image_info->red_prec; + r_left = image_info->red_shift; + g_right = 8 - image_info->green_prec; + g_left = image_info->green_shift; + b_right = 8 - image_info->blue_prec; + b_left = image_info->blue_shift; + bpp = image_info->bpp; + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * bpp; + shift_init = (bpp - 1) << 3; + for (y = 0; y < height; y++) + { + obptr = obuf; + bp2 = bptr; + for (x = 0; x < width; x++) + { + r = bp2[0]; + g = bp2[1]; + b = bp2[2]; + pixel = ((r >> r_right) << r_left) | + ((g >> g_right) << g_left) | + ((b >> b_right) << b_left); + for (shift = shift_init; shift >= 0; shift -= 8) + { + *obptr++ = (pixel >> shift) & 0xff; + } + bp2 += 3; + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_truecolor_msb_d (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, + XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *obuf, *obptr; + int bpl; + unsigned char *bptr, *bp2; + int r, g, b; + int r_right, r_left, r_prec; + int g_right, g_left, g_prec; + int b_right, b_left, b_prec; + int bpp; + unsigned int pixel; + int shift, shift_init; + int dith; + int r1, g1, b1; + const unsigned char *dmp; + + r_right = 8 - image_info->red_prec; + r_left = image_info->red_shift; + r_prec = image_info->red_prec; + g_right = 8 - image_info->green_prec; + g_left = image_info->green_shift; + g_prec = image_info->green_prec; + b_right = 8 - image_info->blue_prec; + b_left = image_info->blue_shift; + b_prec = image_info->blue_prec; + bpp = image_info->bpp; + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax * bpp; + shift_init = (bpp - 1) << 3; + for (y = 0; y < height; y++) + { + dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; + obptr = obuf; + bp2 = bptr; + for (x = 0; x < width; x++) + { + r = bp2[0]; + g = bp2[1]; + b = bp2[2]; + dith = dmp[(x_align + x) & (DM_WIDTH - 1)] << 2; + r1 = r + (dith >> r_prec); + g1 = g + ((252 - dith) >> g_prec); + b1 = b + (dith >> b_prec); + pixel = (((r1 - (r1 >> r_prec)) >> r_right) << r_left) | + (((g1 - (g1 >> g_prec)) >> g_right) << g_left) | + (((b1 - (b1 >> b_prec)) >> b_right) << b_left); + for (shift = shift_init; shift >= 0; shift -= 8) + { + *obptr++ = (pixel >> shift) & 0xff; + } + bp2 += 3; + } + bptr += rowstride; + obuf += bpl; + } +} + +/* This actually works for depths from 3 to 7 */ +static void +xlib_rgb_convert_4 (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, + XlibRgbCmap *cmap) +{ + int x, y; + int bpl; + unsigned char *obuf, *obptr; + unsigned char *bptr, *bp2; + int r, g, b; + const unsigned char *dmp; + int dith; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax; + for (y = 0; y < height; y++) + { + dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; + bp2 = bptr; + obptr = obuf; + for (x = 0; x < width; x += 1) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + dith = (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) | 3; + obptr[0] = colorcube_d[(((r + dith) & 0x100) >> 2) | + (((g + 258 - dith) & 0x100) >> 5) | + (((b + dith) & 0x100) >> 8)]; + obptr++; + } + bptr += rowstride; + obuf += bpl; + } +} + +/* This actually works for depths from 3 to 7 */ +static void +xlib_rgb_convert_gray4 (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + int bpl; + unsigned char *obuf, *obptr; + unsigned char *bptr, *bp2; + int r, g, b; + int shift; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax; + shift = 9 - image_info->x_visual_info->depth; + for (y = 0; y < height; y++) + { + bp2 = bptr; + obptr = obuf; + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + obptr[0] = (g + ((b + r) >> 1)) >> shift; + obptr++; + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_gray4_pack (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + int bpl; + unsigned char *obuf, *obptr; + unsigned char *bptr, *bp2; + int r, g, b; + int shift; + unsigned char pix0, pix1; + /* todo: this is hardcoded to big-endian. Make endian-agile. */ + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + (ax >> 1); + shift = 9 - image_info->x_visual_info->depth; + for (y = 0; y < height; y++) + { + bp2 = bptr; + obptr = obuf; + for (x = 0; x < width; x += 2) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + pix0 = (g + ((b + r) >> 1)) >> shift; + r = *bp2++; + g = *bp2++; + b = *bp2++; + pix1 = (g + ((b + r) >> 1)) >> shift; + obptr[0] = (pix0 << 4) | pix1; + obptr++; + } + if (width & 1) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + pix0 = (g + ((b + r) >> 1)) >> shift; + obptr[0] = (pix0 << 4); + } + bptr += rowstride; + obuf += bpl; + } +} + +/* This actually works for depths from 3 to 7 */ +static void +xlib_rgb_convert_gray4_d (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + int bpl; + unsigned char *obuf, *obptr; + unsigned char *bptr, *bp2; + int r, g, b; + const unsigned char *dmp; + int prec, right; + int gray; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + ax; + prec = image_info->x_visual_info->depth; + right = 8 - prec; + for (y = 0; y < height; y++) + { + bp2 = bptr; + obptr = obuf; + dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + gray = (g + ((b + r) >> 1)) >> 1; + gray += (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) >> prec; + obptr[0] = (gray - (gray >> prec)) >> right; + obptr++; + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_gray4_d_pack (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + int x, y; + int bpl; + unsigned char *obuf, *obptr; + unsigned char *bptr, *bp2; + int r, g, b; + const unsigned char *dmp; + int prec, right; + int gray; + unsigned char pix0, pix1; + /* todo: this is hardcoded to big-endian. Make endian-agile. */ + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + (ax >> 1); + prec = image_info->x_visual_info->depth; + right = 8 - prec; + for (y = 0; y < height; y++) + { + bp2 = bptr; + obptr = obuf; + dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; + for (x = 0; x < width; x += 2) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + gray = (g + ((b + r) >> 1)) >> 1; + gray += (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) >> prec; + pix0 = (gray - (gray >> prec)) >> right; + r = *bp2++; + g = *bp2++; + b = *bp2++; + gray = (g + ((b + r) >> 1)) >> 1; + gray += (dmp[(x_align + x + 1) & (DM_WIDTH - 1)] << 2) >> prec; + pix1 = (gray - (gray >> prec)) >> right; + obptr[0] = (pix0 << 4) | pix1; + obptr++; + } + if (width & 1) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + gray = (g + ((b + r) >> 1)) >> 1; + gray += (dmp[(x_align + x + 1) & (DM_WIDTH - 1)] << 2) >> prec; + pix0 = (gray - (gray >> prec)) >> right; + obptr[0] = (pix0 << 4); + } + bptr += rowstride; + obuf += bpl; + } +} + +static void +xlib_rgb_convert_1 (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, + XlibRgbCmap *cmap) +{ + int x, y; + int bpl; + unsigned char *obuf, *obptr; + unsigned char *bptr, *bp2; + int r, g, b; + const unsigned char *dmp; + int dith; + unsigned char byte; + + bptr = buf; + bpl = image->bytes_per_line; + obuf = ((unsigned char *)image->data) + ay * bpl + (ax >> 3); + byte = 0; /* unnecessary, but it keeps gcc from complaining */ + for (y = 0; y < height; y++) + { + dmp = DM[(y_align + y) & (DM_HEIGHT - 1)]; + bp2 = bptr; + obptr = obuf; + for (x = 0; x < width; x++) + { + r = *bp2++; + g = *bp2++; + b = *bp2++; + dith = (dmp[(x_align + x) & (DM_WIDTH - 1)] << 4) | 4; + byte += byte + (r + g + g + b + dith > 1020); + if ((x & 7) == 7) + { + obptr[0] = byte; + obptr++; + } + } + if (x & 7) + obptr[0] = byte << (8 - (x & 7)); + bptr += rowstride; + obuf += bpl; + } +} + +/* Returns a pointer to the stage buffer. */ +static unsigned char * +xlib_rgb_ensure_stage (void) +{ + if (image_info->stage_buf == NULL) + image_info->stage_buf = malloc (IMAGE_HEIGHT * STAGE_ROWSTRIDE); + return image_info->stage_buf; +} + +/* This is slow. Speed me up, please. */ +static void +xlib_rgb_32_to_stage (unsigned char *buf, int rowstride, int width, int height) +{ + int x, y; + unsigned char *pi_start, *po_start; + unsigned char *pi, *po; + + pi_start = buf; + po_start = xlib_rgb_ensure_stage (); + for (y = 0; y < height; y++) + { + pi = pi_start; + po = po_start; + for (x = 0; x < width; x++) + { + *po++ = *pi++; + *po++ = *pi++; + *po++ = *pi++; + pi++; + } + pi_start += rowstride; + po_start += STAGE_ROWSTRIDE; + } +} + +/* Generic 32bit RGB conversion function - convert to 24bit packed, then + go from there. */ +static void +xlib_rgb_convert_32_generic (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + xlib_rgb_32_to_stage (buf, rowstride, width, height); + + (*image_info->conv) (image, ax, ay, width, height, + image_info->stage_buf, STAGE_ROWSTRIDE, + x_align, y_align, cmap); +} + +/* Generic 32bit RGB conversion function - convert to 24bit packed, then + go from there. */ +static void +xlib_rgb_convert_32_generic_d (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + xlib_rgb_32_to_stage (buf, rowstride, width, height); + + (*image_info->conv_d) (image, ax, ay, width, height, + image_info->stage_buf, STAGE_ROWSTRIDE, + x_align, y_align, cmap); +} + +/* This is slow. Speed me up, please. */ +static void +xlib_rgb_gray_to_stage (unsigned char *buf, int rowstride, int width, int height) +{ + int x, y; + unsigned char *pi_start, *po_start; + unsigned char *pi, *po; + unsigned char gray; + + pi_start = buf; + po_start = xlib_rgb_ensure_stage (); + for (y = 0; y < height; y++) + { + pi = pi_start; + po = po_start; + for (x = 0; x < width; x++) + { + gray = *pi++; + *po++ = gray; + *po++ = gray; + *po++ = gray; + } + pi_start += rowstride; + po_start += STAGE_ROWSTRIDE; + } +} + +/* Generic gray conversion function - convert to 24bit packed, then go + from there. */ +static void +xlib_rgb_convert_gray_generic (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + xlib_rgb_gray_to_stage (buf, rowstride, width, height); + + (*image_info->conv) (image, ax, ay, width, height, + image_info->stage_buf, STAGE_ROWSTRIDE, + x_align, y_align, cmap); +} + +static void +xlib_rgb_convert_gray_generic_d (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + xlib_rgb_gray_to_stage (buf, rowstride, width, height); + + (*image_info->conv_d) (image, ax, ay, width, height, + image_info->stage_buf, STAGE_ROWSTRIDE, + x_align, y_align, cmap); +} + +/* Render grayscale using indexed method. */ +static void +xlib_rgb_convert_gray_cmap (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + (*image_info->conv_indexed) (image, ax, ay, width, height, + buf, rowstride, + x_align, y_align, image_info->gray_cmap); +} + +#if 0 +static void +xlib_rgb_convert_gray_cmap_d (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + (*image_info->conv_indexed_d) (image, ax, ay, width, height, + buf, rowstride, + x_align, y_align, image_info->gray_cmap); +} +#endif + +/* This is slow. Speed me up, please. */ +static void +xlib_rgb_indexed_to_stage (unsigned char *buf, int rowstride, int width, int height, + XlibRgbCmap *cmap) +{ + int x, y; + unsigned char *pi_start, *po_start; + unsigned char *pi, *po; + int rgb; + + pi_start = buf; + po_start = xlib_rgb_ensure_stage (); + for (y = 0; y < height; y++) + { + pi = pi_start; + po = po_start; + for (x = 0; x < width; x++) + { + rgb = cmap->colors[*pi++]; + *po++ = rgb >> 16; + *po++ = (rgb >> 8) & 0xff; + *po++ = rgb & 0xff; + } + pi_start += rowstride; + po_start += STAGE_ROWSTRIDE; + } +} + +/* Generic gray conversion function - convert to 24bit packed, then go + from there. */ +static void +xlib_rgb_convert_indexed_generic (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, XlibRgbCmap *cmap) +{ + xlib_rgb_indexed_to_stage (buf, rowstride, width, height, cmap); + + (*image_info->conv) (image, ax, ay, width, height, + image_info->stage_buf, STAGE_ROWSTRIDE, + x_align, y_align, cmap); +} + +static void +xlib_rgb_convert_indexed_generic_d (XImage *image, + int ax, int ay, int width, int height, + unsigned char *buf, int rowstride, + int x_align, int y_align, + XlibRgbCmap *cmap) +{ + xlib_rgb_indexed_to_stage (buf, rowstride, width, height, cmap); + + (*image_info->conv_d) (image, ax, ay, width, height, + image_info->stage_buf, STAGE_ROWSTRIDE, + x_align, y_align, cmap); +} + +/* Select a conversion function based on the visual and a + representative image. */ +static void +xlib_rgb_select_conv (XImage *image, ByteOrder byte_order) +{ + int depth, byterev; + int vtype; /* visual type */ + int bpp; /* bits per pixel - from the visual */ + unsigned int red_mask, green_mask, blue_mask; + XlibRgbConvFunc conv, conv_d; + XlibRgbConvFunc conv_32, conv_32_d; + XlibRgbConvFunc conv_gray, conv_gray_d; + XlibRgbConvFunc conv_indexed, conv_indexed_d; + Bool mask_rgb, mask_bgr; + + depth = image_info->x_visual_info->depth; + bpp = image->bits_per_pixel; + if (xlib_rgb_verbose) + printf ("Chose visual 0x%x, image bpp=%d, %s first\n", + (int)image_info->x_visual_info->visual->visualid, + bpp, byte_order == LSB_FIRST ? "lsb" : "msb"); + +#if X_BYTE_ORDER == X_BIG_ENDIAN + byterev = (byte_order == LSB_FIRST); +#else + byterev = (byte_order == MSB_FIRST); +#endif + + vtype = image_info->x_visual_info->class; + if (vtype == DirectColor) + vtype = TrueColor; + + red_mask = image_info->x_visual_info->red_mask; + green_mask = image_info->x_visual_info->green_mask; + blue_mask = image_info->x_visual_info->blue_mask; + + mask_rgb = red_mask == 0xff0000 && green_mask == 0xff00 && blue_mask == 0xff; + mask_bgr = red_mask == 0xff && green_mask == 0xff00 && blue_mask == 0xff0000; + + conv = NULL; + conv_d = NULL; + + conv_32 = xlib_rgb_convert_32_generic; + conv_32_d = xlib_rgb_convert_32_generic_d; + + conv_gray = xlib_rgb_convert_gray_generic; + conv_gray_d = xlib_rgb_convert_gray_generic_d; + + conv_indexed = xlib_rgb_convert_indexed_generic; + conv_indexed_d = xlib_rgb_convert_indexed_generic_d; + + image_info->dith_default = FALSE; + + if (image_info->bitmap) + conv = xlib_rgb_convert_1; + else if (bpp == 16 && depth == 16 && !byterev && + red_mask == 0xf800 && green_mask == 0x7e0 && blue_mask == 0x1f) + { + conv = xlib_rgb_convert_565; + conv_d = xlib_rgb_convert_565_d; + conv_gray = xlib_rgb_convert_565_gray; + xlib_rgb_preprocess_dm_565 (); + } + else if (bpp == 16 && depth == 16 && + vtype == TrueColor&& byterev && + red_mask == 0xf800 && green_mask == 0x7e0 && blue_mask == 0x1f) + conv = xlib_rgb_convert_565_br; + + else if (bpp == 16 && depth == 15 && + vtype == TrueColor && !byterev && + red_mask == 0x7c00 && green_mask == 0x3e0 && blue_mask == 0x1f) + conv = xlib_rgb_convert_555; + + else if (bpp == 16 && depth == 15 && + vtype == TrueColor && byterev && + red_mask == 0x7c00 && green_mask == 0x3e0 && blue_mask == 0x1f) + conv = xlib_rgb_convert_555_br; + + /* I'm not 100% sure about the 24bpp tests - but testing will show*/ + else if (bpp == 24 && depth == 24 && vtype == TrueColor && + ((mask_rgb && byte_order == LSB_FIRST) || + (mask_bgr && byte_order == MSB_FIRST))) + conv = xlib_rgb_convert_888_lsb; + else if (bpp == 24 && depth == 24 && vtype == TrueColor && + ((mask_rgb && byte_order == MSB_FIRST) || + (mask_bgr && byte_order == LSB_FIRST))) + conv = xlib_rgb_convert_888_msb; +#if X_BYTE_ORDER == X_BIG_ENDIAN + else if (bpp == 32 && depth == 24 && vtype == TrueColor && + (mask_rgb && byte_order == LSB_FIRST)) + conv = xlib_rgb_convert_0888_br; + else if (bpp == 32 && depth == 24 && vtype == TrueColor && + (mask_rgb && byte_order == MSB_FIRST)) + conv = xlib_rgb_convert_0888; + else if (bpp == 32 && depth == 24 && vtype == TrueColor && + (mask_bgr && byte_order == MSB_FIRST)) + conv = xlib_rgb_convert_8880_br; +#else + else if (bpp == 32 && depth == 24 && vtype == TrueColor && + (mask_rgb && byte_order == MSB_FIRST)) + conv = xlib_rgb_convert_0888_br; + else if (bpp == 32 && (depth == 32 || depth == 24) && vtype == TrueColor && + (mask_rgb && byte_order == LSB_FIRST)) + conv = xlib_rgb_convert_0888; + else if (bpp == 32 && depth == 24 && vtype == TrueColor && + (mask_bgr && byte_order == LSB_FIRST)) + conv = xlib_rgb_convert_8880_br; +#endif + + else if (vtype == TrueColor && byte_order == LSB_FIRST) + { + conv = xlib_rgb_convert_truecolor_lsb; + conv_d = xlib_rgb_convert_truecolor_lsb_d; + } + else if (vtype == TrueColor && byte_order == MSB_FIRST) + { + conv = xlib_rgb_convert_truecolor_msb; + conv_d = xlib_rgb_convert_truecolor_msb_d; + } + else if (bpp == 8 && depth == 8 && (vtype == PseudoColor +#ifdef ENABLE_GRAYSCALE + || vtype == GrayScale +#endif + )) + { + image_info->dith_default = TRUE; + conv = xlib_rgb_convert_8; + if (vtype != GrayScale) + { + if (image_info->nred_shades == 6 && + image_info->ngreen_shades == 6 && + image_info->nblue_shades == 6) + conv_d = xlib_rgb_convert_8_d666; + else + conv_d = xlib_rgb_convert_8_d; + } + conv_indexed = xlib_rgb_convert_8_indexed; + conv_gray = xlib_rgb_convert_gray_cmap; + } + else if (bpp == 8 && depth == 8 && (vtype == StaticGray +#ifdef not_ENABLE_GRAYSCALE + || vtype == GrayScale +#endif + )) + { + conv = xlib_rgb_convert_gray8; + conv_gray = xlib_rgb_convert_gray8_gray; + } + else if (bpp == 8 && depth < 8 && depth >= 2 && + (vtype == StaticGray + || vtype == GrayScale)) + { + conv = xlib_rgb_convert_gray4; + conv_d = xlib_rgb_convert_gray4_d; + } + else if (bpp == 8 && depth < 8 && depth >= 3) + { + conv = xlib_rgb_convert_4; + } + else if (bpp == 4 && depth <= 4 && depth >= 2 && + (vtype == StaticGray + || vtype == GrayScale)) + { + conv = xlib_rgb_convert_gray4_pack; + conv_d = xlib_rgb_convert_gray4_d_pack; + } + + if (conv_d == NULL) + conv_d = conv; + + image_info->conv = conv; + image_info->conv_d = conv_d; + + image_info->conv_32 = conv_32; + image_info->conv_32_d = conv_32_d; + + image_info->conv_gray = conv_gray; + image_info->conv_gray_d = conv_gray_d; + + image_info->conv_indexed = conv_indexed; + image_info->conv_indexed_d = conv_indexed_d; +} + +static int horiz_idx; +static int horiz_y = IMAGE_HEIGHT; +static int vert_idx; +static int vert_x = IMAGE_WIDTH; +static int tile_idx; +static int tile_x = IMAGE_WIDTH; +static int tile_y1 = IMAGE_HEIGHT; +static int tile_y2 = IMAGE_HEIGHT; + +#ifdef VERBOSE +static int sincelast; +#endif + +/* Defining NO_FLUSH can cause inconsistent screen updates, but is useful + for performance evaluation. */ + +#undef NO_FLUSH + +static int +xlib_rgb_alloc_scratch_image (void) +{ + if (static_image_idx == N_IMAGES) + { +#ifndef NO_FLUSH + XFlush(image_info->display); +#endif +#ifdef VERBOSE + printf ("flush, %d puts since last flush\n", sincelast); + sincelast = 0; +#endif + static_image_idx = 0; + horiz_y = IMAGE_HEIGHT; + vert_x = IMAGE_WIDTH; + tile_x = IMAGE_WIDTH; + tile_y1 = tile_y2 = IMAGE_HEIGHT; + } + return static_image_idx++; +} + +static XImage * +xlib_rgb_alloc_scratch (int width, int height, int *ax, int *ay) +{ + XImage *image; + int idx; + + if (width >= (IMAGE_WIDTH >> 1)) + { + if (height >= (IMAGE_HEIGHT >> 1)) + { + idx = xlib_rgb_alloc_scratch_image (); + *ax = 0; + *ay = 0; + } + else + { + if (height + horiz_y > IMAGE_HEIGHT) + { + horiz_idx = xlib_rgb_alloc_scratch_image (); + horiz_y = 0; + } + idx = horiz_idx; + *ax = 0; + *ay = horiz_y; + horiz_y += height; + } + } + else + { + if (height >= (IMAGE_HEIGHT >> 1)) + { + if (width + vert_x > IMAGE_WIDTH) + { + vert_idx = xlib_rgb_alloc_scratch_image (); + vert_x = 0; + } + idx = vert_idx; + *ax = vert_x; + *ay = 0; + /* using 3 and -4 would be slightly more efficient on 32-bit machines + with > 1bpp displays */ + vert_x += (width + 7) & -8; + } + else + { + if (width + tile_x > IMAGE_WIDTH) + { + tile_y1 = tile_y2; + tile_x = 0; + } + if (height + tile_y1 > IMAGE_HEIGHT) + { + tile_idx = xlib_rgb_alloc_scratch_image (); + tile_x = 0; + tile_y1 = 0; + tile_y2 = 0; + } + if (height + tile_y1 > tile_y2) + tile_y2 = height + tile_y1; + idx = tile_idx; + *ax = tile_x; + *ay = tile_y1; + tile_x += (width + 7) & -8; + } + } + image = static_image[idx]; +#ifdef VERBOSE + printf ("index %d, x %d, y %d (%d x %d)\n", idx, *ax, *ay, width, height); + sincelast++; +#endif + return image; +} + +static void +xlib_draw_rgb_image_core (Drawable drawable, + GC gc, + int x, + int y, + int width, + int height, + unsigned char *buf, + int pixstride, + int rowstride, + XlibRgbConvFunc conv, + XlibRgbCmap *cmap, + int xdith, + int ydith) +{ + int ay, ax; + int xs0, ys0; + XImage *image; + int width1, height1; + unsigned char *buf_ptr; + + if (image_info->bitmap) + { + if (image_info->own_gc == 0) + { + XColor color; + + image_info->own_gc = XCreateGC(image_info->display, + drawable, + 0, NULL); + color.pixel = WhitePixel(image_info->display, + image_info->screen_num); + XSetForeground(image_info->display, image_info->own_gc, color.pixel); + color.pixel = BlackPixel(image_info->display, + image_info->screen_num); + XSetBackground(image_info->display, image_info->own_gc, color.pixel); + } + gc = image_info->own_gc; + } + for (ay = 0; ay < height; ay += IMAGE_HEIGHT) + { + height1 = MIN (height - ay, IMAGE_HEIGHT); + for (ax = 0; ax < width; ax += IMAGE_WIDTH) + { + width1 = MIN (width - ax, IMAGE_WIDTH); + buf_ptr = buf + ay * rowstride + ax * pixstride; + + image = xlib_rgb_alloc_scratch (width1, height1, &xs0, &ys0); + + conv (image, xs0, ys0, width1, height1, buf_ptr, rowstride, + x + ax + xdith, y + ay + ydith, cmap); + +#ifndef DONT_ACTUALLY_DRAW + XPutImage(image_info->display, drawable, gc, image, + xs0, ys0, x + ax, y + ay, (unsigned int)width1, (unsigned int)height1); +#endif + } + } +} + + +/** + * xlib_draw_rgb_image: + * @drawable: Destination drawable. + * @gc: A graphic context. + * @x: Leftmost coordinate of the destination rectangle. + * @y: Upper coordinate of the destination rectangle. + * @width: Width of the destination rectangle, in pixels. + * @height: Height of the destination rectangle, in pixels. + * @dith: Dithering method to use. + * @rgb_buf: Pointer to the pixel in the RGB buffer that corresponds to the + * upper-left corner of the rectangular region to render. + * @rowstride: Offset between pixel rows in the RGB buffer, in bytes. + * + * Renders an RGB buffer to a drawable. Pixels are specified as RGB triplets + * with 8 bits per channel. An image will thus look like an RGBRGBRGBRGB + * sequence of 8-bit values. This function does not let you specify dither + * offsets; applications that need to render partial regions of a buffer to + * build the final image should use xlib_draw_rgb_image_dithalign() instead. + **/ +void +xlib_draw_rgb_image (Drawable drawable, + GC gc, + int x, + int y, + int width, + int height, + XlibRgbDither dith, + unsigned char *rgb_buf, + int rowstride) +{ + if (dith == XLIB_RGB_DITHER_NONE || (dith == XLIB_RGB_DITHER_NORMAL && + !image_info->dith_default)) + xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, + rgb_buf, 3, rowstride, image_info->conv, NULL, + 0, 0); + else + xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, + rgb_buf, 3, rowstride, image_info->conv_d, NULL, + 0, 0); +} + + + +/** + * xlib_rgb_cmap_free: + * @cmap: An XlibRGB colormap. + * + * Frees an XlibRGB colormap. + **/ +void +xlib_rgb_cmap_free (XlibRgbCmap *cmap) +{ + free (cmap); +} + +/** + * xlib_draw_indexed_image: + * @drawable: FIXME + * @gc: FIXME + * @x: FIXME + * @y: FIXME + * @width: FIXME + * @height: FIXME + * @dith: FIXME + * @buf: FIXME + * @rowstride: FIXME + * @cmap: FIXME + * + * FIXME + **/ +void +xlib_draw_indexed_image (Drawable drawable, + GC gc, + int x, + int y, + int width, + int height, + XlibRgbDither dith, + unsigned char *buf, + int rowstride, + XlibRgbCmap *cmap) +{ + if (dith == XLIB_RGB_DITHER_NONE || (dith == XLIB_RGB_DITHER_NORMAL && + !image_info->dith_default)) + xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, + buf, 1, rowstride, + image_info->conv_indexed, cmap, 0, 0); + else + xlib_draw_rgb_image_core (drawable, gc, x, y, width, height, + buf, 1, rowstride, + image_info->conv_indexed_d, cmap, 0, 0); +} + +/** + * xlib_rgb_ditherable: + * + * Queries whether XlibRGB supports dithering for its chosen visual. + * + * Return value: TRUE if dithering can be performed for the visual that XlibRGB + * is using, FALSE otherwise. + **/ +Bool +xlib_rgb_ditherable (void) +{ + return (image_info->conv != image_info->conv_d); +} + +/** + * xlib_rgb_get_cmap: + * + * Queries the X colormap that XlibRGB is using. + * + * Return value: An X colormap. + **/ +Colormap +xlib_rgb_get_cmap (void) +{ + /* xlib_rgb_init (); */ + if (image_info) + return image_info->cmap; + else + return 0; +} + +/** + * xlib_rgb_get_visual: + * + * Queries the visual that XlibRGB is using. + * + * Return value: An X visual. + **/ +Visual * +xlib_rgb_get_visual (void) +{ + /* xlib_rgb_init (); */ + if (image_info) + return image_info->x_visual_info->visual; + else + return 0; +} + +/** + * xlib_rgb_get_visual_info: + * + * Queries the visual info structure for the visual that XlibRGB is using. + * + * Return value: An XVisualInfo structure. + **/ +XVisualInfo * +xlib_rgb_get_visual_info (void) +{ + /* xlib_rgb_init (); */ + if (image_info) + return image_info->x_visual_info; + else + return 0; +} + +/** + * xlib_rgb_get_depth: + * + * Queries the depth of the visual that XlibRGB is using. + * + * Return value: Bit depth. + **/ +int +xlib_rgb_get_depth (void) +{ + XVisualInfo * v = xlib_rgb_get_visual_info(); + + if (v) + { + return v->depth; + } + + return 0; +} + +/** + * xlib_rgb_get_display: + * + * Queries the X display that XlibRGB is using. + * + * Return value: An X display. + **/ +Display * +xlib_rgb_get_display (void) +{ + if (image_info) + return image_info->display; + + return NULL; +} + +/** + * xlib_rgb_get_screen: + * + * Queries the screen that XlibRGB is using. + * + * Return value: An X screen. + **/ +Screen * +xlib_rgb_get_screen (void) +{ + if (image_info) + return image_info->screen; + + return NULL; +} diff --git a/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlibrgb.h b/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlibrgb.h new file mode 100644 index 00000000..afde174e --- /dev/null +++ b/ksvg/impl/libs/xrgbrender/gdk-pixbuf-xlibrgb.h @@ -0,0 +1,145 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "MPL"); you may not use this file except in + * compliance with the MPL. You may obtain a copy of the MPL at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the MPL is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the MPL + * for the specific language governing rights and limitations under the + * MPL. + * + * Alternatively, the contents of this file may be used under the + * terms of the GNU Library General Public License (the "LGPL"), in + * which case the provisions of the LGPL are applicable instead of + * those above. If you wish to allow use of your version of this file + * only under the terms of the LGPL and not to allow others to use + * your version of this file under the MPL, indicate your decision by + * deleting the provisions above and replace them with the notice and + * other provisions required by the LGPL. If you do not delete the + * provisions above, a recipient may use your version of this file + * under either the MPL or the LGPL. + */ + +/* + * This code is derived from GdkRgb. + * For more information on GdkRgb, see http://www.levien.com/gdkrgb/ + * Raph Levien <[email protected]> + */ + +/* Ported by Christopher Blizzard to Xlib. With permission from the + * original authors of this file, the contents of this file are also + * redistributable under the terms of the Mozilla Public license. For + * information about the Mozilla Public License, please see the + * license information at http://www.mozilla.org/MPL/ + */ + +/* This code is copyright the following authors: + * Raph Levien <[email protected]> + * Manish Singh <[email protected]> + * Tim Janik <[email protected]> + * Peter Mattis <[email protected]> + * Spencer Kimball <[email protected]> + * Josh MacDonald <[email protected]> + * Christopher Blizzard <[email protected]> + * Owen Taylor <[email protected]> + * Shawn T. Amundson <[email protected]> +*/ + + +#ifndef __XLIB_RGB_H__ +#define __XLIB_RGB_H__ + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/Xos.h> +#include <X11/Intrinsic.h> + + +typedef struct _XlibRgbCmap XlibRgbCmap; + +struct _XlibRgbCmap { + unsigned int colors[256]; + unsigned char lut[256]; /* for 8-bit modes */ +}; + +void +xlib_rgb_init_with_depth (Display *display, Screen *screen, int prefDepth); + +typedef enum +{ + XLIB_RGB_DITHER_NONE, + XLIB_RGB_DITHER_NORMAL, + XLIB_RGB_DITHER_MAX +} XlibRgbDither; + +void +xlib_draw_rgb_image (Drawable drawable, + GC gc, + int x, + int y, + int width, + int height, + XlibRgbDither dith, + unsigned char *rgb_buf, + int rowstride); + +void +xlib_rgb_cmap_free (XlibRgbCmap *cmap); + +void +xlib_draw_indexed_image (Drawable drawable, + GC gc, + int x, + int y, + int width, + int height, + XlibRgbDither dith, + unsigned char *buf, + int rowstride, + XlibRgbCmap *cmap); + +/* Below are some functions which are primarily useful for debugging + and experimentation. */ +Bool +xlib_rgb_ditherable (void); + +void +xlib_rgb_set_verbose (Bool verbose); + +/* experimental colormap stuff */ +void +xlib_rgb_set_install (Bool install); + +void +xlib_rgb_set_min_colors (int min_colors); + +Colormap +xlib_rgb_get_cmap (void); + +Visual * +xlib_rgb_get_visual (void); + +XVisualInfo * +xlib_rgb_get_visual_info (void); + +int +xlib_rgb_get_depth (void); + +Display * +xlib_rgb_get_display (void); + +Screen * +xlib_rgb_get_screen (void); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + + +#endif /* __XLIB_RGB_H__ */ |