diff options
| -rw-r--r-- | ChangeLog | 2 | ||||
| -rw-r--r-- | README | 14 | ||||
| -rw-r--r-- | art_config.h | 6 | ||||
| -rw-r--r-- | art_render_gradient.c | 28 | ||||
| -rw-r--r-- | art_render_gradient.h | 1 | ||||
| -rw-r--r-- | art_vpath_bpath.c | 119 | ||||
| -rw-r--r-- | gen_art_config.sh.in | 6 | ||||
| -rw-r--r-- | libart-config.in | 13 | ||||
| -rw-r--r-- | testart.c | 6 |
9 files changed, 132 insertions, 63 deletions
@@ -1,3 +1,5 @@ +*** PLEASE SEE THE GIT COMMIT LOG FOR NEWER CHANGES *** + 2009-01-14 Fridrich Strba <[email protected]> * gen_art_config.c: remove @@ -17,3 +17,17 @@ For more information about libart, see the web page: There's also a libart tutorial available at http://www.gnome.org/~mathieu/libart/libart.html +====================================================================== + +NOTE: The TDE project has take over maintinance of this library, +starting with the sources from the final upstream release v2.3.21. + +This allows the TDE project to resolve remaining issues that cause +problems or crashes within TDE. + +This patched library is only available under the terms of the +GPL/LGPL, and is NOT for sale by the original author as mentioned +above, as patch copyright has NOT been transferred to the original +author and we have no plans to do so. + +====================================================================== diff --git a/art_config.h b/art_config.h index 2954e55..0e4c948 100644 --- a/art_config.h +++ b/art_config.h @@ -1,5 +1,8 @@ /* Automatically generated by gen_art_config */ +#ifndef _ART_CONFIG_H_ +#define _ART_CONFIG_H_ + #define ART_SIZEOF_CHAR 1 #define ART_SIZEOF_SHORT 2 #define ART_SIZEOF_INT 4 @@ -8,3 +11,6 @@ typedef unsigned char art_u8; typedef unsigned short art_u16; typedef unsigned int art_u32; + +#endif /* _ART_CONFIG_H_ */ + diff --git a/art_render_gradient.c b/art_render_gradient.c index bf93c6f..008d61a 100644 --- a/art_render_gradient.c +++ b/art_render_gradient.c @@ -30,7 +30,9 @@ #include <stdlib.h> #include <stdio.h> #include <string.h> +#if 0 #include <assert.h> +#endif /* Hack to find out how to define alloca on different platforms. * Modified version of glib/galloca.h. @@ -203,7 +205,9 @@ calc_color_at (ArtGradientStop *stops, } printf ("WARNING! bad ix %d in calc_color_at() [internal error]\n", ix); +#if 0 assert (0); +#endif } static void @@ -331,6 +335,7 @@ art_render_gradient_linear_render_8 (ArtRenderCallback *self, printf ("Initial ix: %d\n", ix); #endif +#if 0 assert (ix > 0); assert (ix < n_stops); assert ((stops[ix-1].offset <= offset_fraction + EPSILON) || @@ -344,6 +349,17 @@ art_render_gradient_linear_render_8 (ArtRenderCallback *self, assert ((offset_fraction != stops[ix].offset) || (d_offset <= 0.0)); */ +#else + if (!( (ix > 0) && (ix < n_stops) + && ((stops[ix-1].offset <= offset_fraction + EPSILON) || + ((stops[ix].offset > (1.0 - EPSILON)) + && (offset_fraction < EPSILON /* == 0.0*/))) + && (offset_fraction <= stops[ix].offset))) + { + printf ("art_render_gradient.c:%d: Old assert() failed!\n", __LINE__); + return; + } +#endif while (width > 0) { @@ -663,6 +679,18 @@ art_render_gradient_radial_render (ArtRenderCallback *self, ArtRender *render, z = b_a + sqrt (rad); else z = b_a; + + if (gradient->spread == ART_GRADIENT_PAD) + z = z; + else if (gradient->spread == ART_GRADIENT_REPEAT) + z = z - floor (z); + else /* (gradient->spread == ART_GRADIENT_REFLECT) */ + { + double tmp; + + tmp = z - 2 * floor (0.5 * z); + z = tmp > 1 ? 2 - tmp : tmp; + } art_render_gradient_setpix (render, bufp, n_stops, stops, z); bufp += pixstride; b_a += db_a; diff --git a/art_render_gradient.h b/art_render_gradient.h index ef5da95..d0806a4 100644 --- a/art_render_gradient.h +++ b/art_render_gradient.h @@ -60,6 +60,7 @@ struct _ArtGradientLinear { struct _ArtGradientRadial { double affine[6]; /* transforms user coordinates to unit circle */ double fx, fy; /* focal point in unit circle coords */ + ArtGradientSpread spread; int n_stops; ArtGradientStop *stops; }; diff --git a/art_vpath_bpath.c b/art_vpath_bpath.c index 3f9afe7..2459f23 100644 --- a/art_vpath_bpath.c +++ b/art_vpath_bpath.c @@ -123,18 +123,6 @@ art_vpath_render_bez (ArtVpath **p_vpath, int *pn, int *pn_max, 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 @@ -157,70 +145,79 @@ art_vpath_render_bez (ArtVpath **p_vpath, int *pn, int *pn_max, 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; - - if (z3_0_dot < 0.001) + do { - /* if start and end point are almost identical, the flatness tests - * don't work properly, so fall back on testing whether both of - * the other two control points are the same as the start point, - * too. - */ - if (hypot(x1 - x0, y1 - y0) < 0.001 - && hypot(x2 - x0, y2 - y0) < 0.001) - goto nosubdivide; - else - goto subdivide; - } + /* don't subdivide inside this */ + double x3_0, y3_0; + double z3_0_dot; + double z1_dot, z2_dot; + double z1_perp, z2_perp; + double max_perp_sq; - /* we can avoid subdivision if: + x3_0 = x3 - x0; + y3_0 = y3 - y0; - z1 has distance no more than flatness from the z0-z3 line + /* z3_0_dot is dist z0-z3 squared */ + z3_0_dot = x3_0 * x3_0 + y3_0 * y3_0; - z1 is no more z0'ward than flatness past z0-z3 + if (z3_0_dot > 0.001) + { + /* we can avoid subdivision if: - z1 is more z0'ward than z3'ward on the line traversing z0-z3 + z1 has distance no more than flatness from the z0-z3 line - and correspondingly for z2 */ + z1 is no more z0'ward than flatness past z0-z3 - /* perp is distance from line, multiplied by dist z0-z3 */ - max_perp_sq = flatness * flatness * z3_0_dot; + z1 is more z0'ward than z3'ward on the line traversing z0-z3 - z1_perp = (y1 - y0) * x3_0 - (x1 - x0) * y3_0; - if (z1_perp * z1_perp > max_perp_sq) - goto subdivide; + and correspondingly for z2 */ - z2_perp = (y3 - y2) * x3_0 - (x3 - x2) * y3_0; - if (z2_perp * z2_perp > max_perp_sq) - goto subdivide; + /* perp is distance from line, multiplied by dist z0-z3 */ + max_perp_sq = flatness * flatness * z3_0_dot; - z1_dot = (x1 - x0) * x3_0 + (y1 - y0) * y3_0; - if (z1_dot < 0 && z1_dot * z1_dot > max_perp_sq) - goto subdivide; + z1_perp = (y1 - y0) * x3_0 - (x1 - x0) * y3_0; + if (z1_perp * z1_perp > max_perp_sq) + break; - z2_dot = (x3 - x2) * x3_0 + (y3 - y2) * y3_0; - if (z2_dot < 0 && z2_dot * z2_dot > max_perp_sq) - goto subdivide; + z2_perp = (y3 - y2) * x3_0 - (x3 - x2) * y3_0; + if (z2_perp * z2_perp > max_perp_sq) + break; - if (z1_dot + z1_dot > z3_0_dot) - goto subdivide; + z1_dot = (x1 - x0) * x3_0 + (y1 - y0) * y3_0; + if (z1_dot < 0 && z1_dot * z1_dot > max_perp_sq) + break; - if (z2_dot + z2_dot > z3_0_dot) - goto subdivide; + if (z1_dot + z1_dot > z3_0_dot) + break; - - nosubdivide: - /* don't subdivide */ - art_vpath_add_point (p_vpath, pn, pn_max, - ART_LINETO, x3, y3); - return; + z2_dot = (x3 - x2) * x3_0 + (y3 - y2) * y3_0; + if (z2_dot < 0 && z2_dot * z2_dot > max_perp_sq) + break; - subdivide: + if (z2_dot + z2_dot > z3_0_dot) + break; + } + else + { + /* if start and end point are almost identical, the flatness tests + * don't work properly, so fall back on testing whether both of + * the other two control points are the same as the start point, + * too. + */ + if (hypot(x1 - x0, y1 - y0) > 0.001 + || hypot(x2 - x0, y2 - y0) > 0.001) + break; + } + + art_vpath_add_point (p_vpath, pn, pn_max, + ART_LINETO, x3, y3); + return; + } while (0); + double x_m, y_m; + double xa1, ya1; + double xa2, ya2; + double xb1, yb1; + double xb2, yb2; xa1 = (x0 + x1) * 0.5; ya1 = (y0 + y1) * 0.5; diff --git a/gen_art_config.sh.in b/gen_art_config.sh.in index 79843bc..8c525bd 100644 --- a/gen_art_config.sh.in +++ b/gen_art_config.sh.in @@ -8,6 +8,9 @@ echo "/* Automatically generated by gen_art_config */" echo +echo "#ifndef _ART_CONFIG_H_" +echo "#define _ART_CONFIG_H_" +echo echo "#define ART_SIZEOF_CHAR @ART_SIZEOF_CHAR@" echo "#define ART_SIZEOF_SHORT @ART_SIZEOF_SHORT@" echo "#define ART_SIZEOF_INT @ART_SIZEOF_INT@" @@ -39,5 +42,8 @@ else fi fi +echo +echo "#endif /* _ART_CONFIG_H_ */" + exit 0 } diff --git a/libart-config.in b/libart-config.in index 0a2f3a9..e32f010 100644 --- a/libart-config.in +++ b/libart-config.in @@ -3,6 +3,8 @@ prefix=@prefix@ exec_prefix=@exec_prefix@ exec_prefix_set=no +libs="" +output_libs=no usage="\ Usage: libart-config [--prefix[=DIR]] [--exec-prefix[=DIR]] [--version] [--libs] [--cflags]" @@ -43,8 +45,11 @@ while test $# -gt 0; do echo $includes ;; --libs) - libdirs=-L@libdir@ - echo $libdirs -lart_lgpl_2 -lm + libs="$libs -L@libdir@ -lart_lgpl_2" + output_libs=yes + ;; + --static) + libs="$libs -lm" ;; *) echo "${usage}" 1>&2 @@ -54,3 +59,7 @@ while test $# -gt 0; do shift done +if test $output_libs = yes ; then + echo $libs +fi + @@ -228,6 +228,7 @@ make_testpat (void) art_free (vpath3); #else svp2 = art_svp_from_vpath (vpath2); + art_free (vpath2); #endif #if 1 @@ -361,6 +362,7 @@ test_dist (void) 4, 0.5); #endif + art_free (vpath); art_rgb_svp_aa (svp, 0, 0, 512, 512, 0xffe0a0, 0x100040, @@ -431,10 +433,12 @@ test_render_gradient (art_u8 *buf) vpath = randstar (50); svp = art_svp_from_vpath (vpath); + art_free (vpath); render = art_render_new (0, 0, 512, 512, buf, 512 * 3, 3, 8, ART_ALPHA_NONE, NULL); art_render_svp (render, svp); + art_svp_free (svp); art_render_gradient_linear (render, &gradient, ART_FILTER_NEAREST); art_render_invoke (render); @@ -467,6 +471,7 @@ test_render_rad_gradient (art_u8 *buf) vpath = randstar (50); svp = art_svp_from_vpath (vpath); + art_free (vpath); render = art_render_new (0, 0, 512, 512, buf, 512 * 3, 3, 8, ART_ALPHA_NONE, NULL); @@ -489,6 +494,7 @@ test_gradient (void) vpath = randstar (50); svp = art_svp_from_vpath (vpath); + art_free (vpath); for (i = 0; i < n_iter; i++) { |