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-rw-r--r--compton.c2604
-rw-r--r--compton.h355
2 files changed, 2959 insertions, 0 deletions
diff --git a/compton.c b/compton.c
new file mode 100644
index 000000000..2b33575d5
--- /dev/null
+++ b/compton.c
@@ -0,0 +1,2604 @@
+/*
+ * Compton - a compositor for X11
+ *
+ * Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
+ *
+ * Copyright (c) 2011, Christopher Jeffrey
+ * See LICENSE for more information.
+ *
+ */
+
+#include "compton.h"
+
+/**
+ * Shared
+ */
+
+win *list;
+fade *fades;
+Display *dpy;
+int scr;
+
+Window root;
+Picture root_picture;
+Picture root_buffer;
+Picture black_picture;
+Picture root_tile;
+XserverRegion all_damage;
+Bool clip_changed;
+#if HAS_NAME_WINDOW_PIXMAP
+Bool has_name_pixmap;
+#endif
+int root_height, root_width;
+
+/* errors */
+ignore *ignore_head, **ignore_tail = &ignore_head;
+int xfixes_event, xfixes_error;
+int damage_event, damage_error;
+int composite_event, composite_error;
+int render_event, render_error;
+int composite_opcode;
+
+/* shadows */
+conv *gaussian_map;
+
+/* for shadow precomputation */
+int Gsize = -1;
+unsigned char *shadow_corner = NULL;
+unsigned char *shadow_top = NULL;
+
+/* for root tile */
+static const char *background_props[] = {
+ "_XROOTPMAP_ID",
+ "_XSETROOT_ID",
+ 0,
+};
+
+/* for expose events */
+XRectangle *expose_rects = 0;
+int size_expose = 0;
+int n_expose = 0;
+
+/* atoms */
+Atom extents_atom;
+Atom opacity_atom;
+Atom win_type_atom;
+Atom win_type[NUM_WINTYPES];
+double win_type_opacity[NUM_WINTYPES];
+Bool win_type_shadow[NUM_WINTYPES];
+Bool win_type_fade[NUM_WINTYPES];
+
+/**
+ * Macros
+ */
+
+#define INACTIVE_OPACITY \
+(unsigned long)((double)inactive_opacity * OPAQUE)
+
+#define IS_NORMAL_WIN(w) \
+((w) && ((w)->window_type == WINTYPE_NORMAL \
+ || (w)->window_type == WINTYPE_UTILITY))
+
+#define HAS_FRAME_OPACITY(w) (frame_opacity && (w)->top_width)
+
+/**
+ * Options
+ */
+
+int shadow_radius = 12;
+int shadow_offset_x = -15;
+int shadow_offset_y = -15;
+double shadow_opacity = .75;
+
+double fade_in_step = 0.028;
+double fade_out_step = 0.03;
+int fade_delta = 10;
+int fade_time = 0;
+Bool fade_trans = False;
+
+Bool clear_shadow = False;
+
+double inactive_opacity = 0;
+double frame_opacity = 0;
+
+Bool synchronize = False;
+
+/**
+ * Fades
+ */
+
+static int
+get_time_in_milliseconds() {
+ struct timeval tv;
+
+ gettimeofday(&tv, NULL);
+
+ return tv.tv_sec * 1000 + tv.tv_usec / 1000;
+}
+
+static fade *
+find_fade(win *w) {
+ fade *f;
+
+ for (f = fades; f; f = f->next) {
+ if (f->w == w) return f;
+ }
+
+ return 0;
+}
+
+static void
+dequeue_fade(Display *dpy, fade *f) {
+ fade **prev;
+
+ for (prev = &fades; *prev; prev = &(*prev)->next) {
+ if (*prev == f) {
+ *prev = f->next;
+ if (f->callback) {
+ (*f->callback)(dpy, f->w);
+ }
+ free(f);
+ break;
+ }
+ }
+}
+
+static void
+cleanup_fade(Display *dpy, win *w) {
+ fade *f = find_fade (w);
+ if (f) {
+ dequeue_fade(dpy, f);
+ }
+}
+
+static void
+enqueue_fade(Display *dpy, fade *f) {
+ if (!fades) {
+ fade_time = get_time_in_milliseconds() + fade_delta;
+ }
+ f->next = fades;
+ fades = f;
+}
+
+static void
+set_fade(Display *dpy, win *w, double start,
+ double finish, double step,
+ void(*callback) (Display *dpy, win *w),
+ Bool exec_callback, Bool override) {
+ fade *f;
+
+ f = find_fade(w);
+ if (!f) {
+ f = malloc(sizeof(fade));
+ f->next = 0;
+ f->w = w;
+ f->cur = start;
+ enqueue_fade(dpy, f);
+ } else if (!override) {
+ return;
+ } else {
+ if (exec_callback && f->callback) {
+ (*f->callback)(dpy, f->w);
+ }
+ }
+
+ if (finish < 0) finish = 0;
+ if (finish > 1) finish = 1;
+ f->finish = finish;
+
+ if (f->cur < finish) {
+ f->step = step;
+ } else if (f->cur > finish) {
+ f->step = -step;
+ }
+
+ f->callback = callback;
+ w->opacity = f->cur * OPAQUE;
+
+ determine_mode(dpy, w);
+
+ if (w->shadow) {
+ XRenderFreePicture(dpy, w->shadow);
+ w->shadow = None;
+
+ if (w->extents != None) {
+ XFixesDestroyRegion(dpy, w->extents);
+ }
+
+ /* rebuild the shadow */
+ w->extents = win_extents(dpy, w);
+ }
+
+ /* fading windows need to be drawn, mark
+ them as damaged. when a window maps,
+ if it tries to fade in but it already
+ at the right opacity (map/unmap/map fast)
+ then it will never get drawn without this
+ until it repaints */
+ w->damaged = 1;
+}
+
+static int
+fade_timeout(void) {
+ int now;
+ int delta;
+
+ if (!fades) return -1;
+
+ now = get_time_in_milliseconds();
+ delta = fade_time - now;
+
+ if (delta < 0) delta = 0;
+
+ return delta;
+}
+
+static void
+run_fades(Display *dpy) {
+ int now = get_time_in_milliseconds();
+ fade *next = fades;
+ int steps;
+ Bool need_dequeue;
+
+ if (fade_time - now > 0) return;
+ steps = 1 + (now - fade_time) / fade_delta;
+
+ while (next) {
+ fade *f = next;
+ win *w = f->w;
+ next = f->next;
+
+ f->cur += f->step * steps;
+ if (f->cur >= 1) {
+ f->cur = 1;
+ } else if (f->cur < 0) {
+ f->cur = 0;
+ }
+
+ w->opacity = f->cur * OPAQUE;
+ need_dequeue = False;
+ if (f->step > 0) {
+ if (f->cur >= f->finish) {
+ w->opacity = f->finish * OPAQUE;
+ need_dequeue = True;
+ }
+ } else {
+ if (f->cur <= f->finish) {
+ w->opacity = f->finish * OPAQUE;
+ need_dequeue = True;
+ }
+ }
+
+ determine_mode(dpy, w);
+
+ if (w->shadow) {
+ XRenderFreePicture(dpy, w->shadow);
+ w->shadow = None;
+
+ if (w->extents != None) {
+ XFixesDestroyRegion(dpy, w->extents);
+ }
+
+ /* rebuild the shadow */
+ w->extents = win_extents(dpy, w);
+ }
+
+ /* Must do this last as it might
+ destroy f->w in callbacks */
+ if (need_dequeue) dequeue_fade(dpy, f);
+ }
+
+ fade_time = now + fade_delta;
+}
+
+/**
+ * Shadows
+ */
+
+static double
+gaussian(double r, double x, double y) {
+ return ((1 / (sqrt(2 * M_PI * r))) *
+ exp((- (x * x + y * y)) / (2 * r * r)));
+}
+
+static conv *
+make_gaussian_map(Display *dpy, double r) {
+ conv *c;
+ int size = ((int) ceil((r * 3)) + 1) & ~1;
+ int center = size / 2;
+ int x, y;
+ double t;
+ double g;
+
+ c = malloc(sizeof(conv) + size * size * sizeof(double));
+ c->size = size;
+ c->data = (double *) (c + 1);
+ t = 0.0;
+
+ for (y = 0; y < size; y++) {
+ for (x = 0; x < size; x++) {
+ g = gaussian(r, (double) (x - center), (double) (y - center));
+ t += g;
+ c->data[y * size + x] = g;
+ }
+ }
+
+ for (y = 0; y < size; y++) {
+ for (x = 0; x < size; x++) {
+ c->data[y * size + x] /= t;
+ }
+ }
+
+ return c;
+}
+
+/*
+ * A picture will help
+ *
+ * -center 0 width width+center
+ * -center +-----+-------------------+-----+
+ * | | | |
+ * | | | |
+ * 0 +-----+-------------------+-----+
+ * | | | |
+ * | | | |
+ * | | | |
+ * height +-----+-------------------+-----+
+ * | | | |
+ * height+ | | | |
+ * center +-----+-------------------+-----+
+ */
+
+static unsigned char
+sum_gaussian(conv *map, double opacity,
+ int x, int y, int width, int height) {
+ int fx, fy;
+ double *g_data;
+ double *g_line = map->data;
+ int g_size = map->size;
+ int center = g_size / 2;
+ int fx_start, fx_end;
+ int fy_start, fy_end;
+ double v;
+
+ /*
+ * Compute set of filter values which are "in range",
+ * that's the set with:
+ * 0 <= x + (fx-center) && x + (fx-center) < width &&
+ * 0 <= y + (fy-center) && y + (fy-center) < height
+ *
+ * 0 <= x + (fx - center) x + fx - center < width
+ * center - x <= fx fx < width + center - x
+ */
+
+ fx_start = center - x;
+ if (fx_start < 0) fx_start = 0;
+ fx_end = width + center - x;
+ if (fx_end > g_size) fx_end = g_size;
+
+ fy_start = center - y;
+ if (fy_start < 0) fy_start = 0;
+ fy_end = height + center - y;
+ if (fy_end > g_size) fy_end = g_size;
+
+ g_line = g_line + fy_start * g_size + fx_start;
+
+ v = 0;
+
+ for (fy = fy_start; fy < fy_end; fy++) {
+ g_data = g_line;
+ g_line += g_size;
+
+ for (fx = fx_start; fx < fx_end; fx++) {
+ v += *g_data++;
+ }
+ }
+
+ if (v > 1) v = 1;
+
+ return ((unsigned char) (v * opacity * 255.0));
+}
+
+/* precompute shadow corners and sides
+ to save time for large windows */
+static void
+presum_gaussian(conv *map) {
+ int center = map->size/2;
+ int opacity, x, y;
+
+ Gsize = map->size;
+
+ if (shadow_corner) free((void *)shadow_corner);
+ if (shadow_top) free((void *)shadow_top);
+
+ shadow_corner = (unsigned char *)(malloc((Gsize + 1) * (Gsize + 1) * 26));
+ shadow_top = (unsigned char *)(malloc((Gsize + 1) * 26));
+
+ for (x = 0; x <= Gsize; x++) {
+ shadow_top[25 * (Gsize + 1) + x] =
+ sum_gaussian(map, 1, x - center, center, Gsize * 2, Gsize * 2);
+
+ for (opacity = 0; opacity < 25; opacity++) {
+ shadow_top[opacity * (Gsize + 1) + x] =
+ shadow_top[25 * (Gsize + 1) + x] * opacity / 25;
+ }
+
+ for (y = 0; y <= x; y++) {
+ shadow_corner[25 * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x]
+ = sum_gaussian(map, 1, x - center, y - center, Gsize * 2, Gsize * 2);
+ shadow_corner[25 * (Gsize + 1) * (Gsize + 1) + x * (Gsize + 1) + y]
+ = shadow_corner[25 * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x];
+
+ for (opacity = 0; opacity < 25; opacity++) {
+ shadow_corner[opacity * (Gsize + 1) * (Gsize + 1)
+ + y * (Gsize + 1) + x]
+ = shadow_corner[opacity * (Gsize + 1) * (Gsize + 1)
+ + x * (Gsize + 1) + y]
+ = shadow_corner[25 * (Gsize + 1) * (Gsize + 1)
+ + y * (Gsize + 1) + x] * opacity / 25;
+ }
+ }
+ }
+}
+
+static XImage *
+make_shadow(Display *dpy, double opacity,
+ int width, int height) {
+ XImage *ximage;
+ unsigned char *data;
+ int gsize = gaussian_map->size;
+ int ylimit, xlimit;
+ int swidth = width + gsize;
+ int sheight = height + gsize;
+ int center = gsize / 2;
+ int x, y;
+ unsigned char d;
+ int x_diff;
+ int opacity_int = (int)(opacity * 25);
+
+ data = malloc(swidth * sheight * sizeof(unsigned char));
+ if (!data) return 0;
+
+ ximage = XCreateImage(
+ dpy, DefaultVisual(dpy, DefaultScreen(dpy)), 8,
+ ZPixmap, 0, (char *) data, swidth, sheight, 8,
+ swidth * sizeof(unsigned char));
+
+ if (!ximage) {
+ free(data);
+ return 0;
+ }
+
+ /*
+ * Build the gaussian in sections
+ */
+
+ /*
+ * center (fill the complete data array)
+ */
+
+ if (!clear_shadow) {
+ if (Gsize > 0) {
+ d = shadow_top[opacity_int * (Gsize + 1) + Gsize];
+ } else {
+ d = sum_gaussian(gaussian_map,
+ opacity, center, center, width, height);
+ }
+
+ memset(data, d, sheight * swidth);
+ } else {
+ // zero the pixmap
+ memset(data, 0, sheight * swidth);
+ }
+
+ /*
+ * corners
+ */
+
+ ylimit = gsize;
+ if (ylimit > sheight / 2) ylimit = (sheight + 1) / 2;
+
+ xlimit = gsize;
+ if (xlimit > swidth / 2) xlimit = (swidth + 1) / 2;
+
+ for (y = 0; y < ylimit; y++) {
+ for (x = 0; x < xlimit; x++) {
+ if (xlimit == Gsize && ylimit == Gsize) {
+ d = shadow_corner[opacity_int * (Gsize + 1) * (Gsize + 1)
+ + y * (Gsize + 1) + x];
+ } else {
+ d = sum_gaussian(gaussian_map,
+ opacity, x - center, y - center, width, height);
+ }
+ data[y * swidth + x] = d;
+ data[(sheight - y - 1) * swidth + x] = d;
+ data[(sheight - y - 1) * swidth + (swidth - x - 1)] = d;
+ data[y * swidth + (swidth - x - 1)] = d;
+ }
+ }
+
+ /*
+ * top/bottom
+ */
+
+ x_diff = swidth - (gsize * 2);
+ if (x_diff > 0 && ylimit > 0) {
+ for (y = 0; y < ylimit; y++) {
+ if (ylimit == Gsize) {
+ d = shadow_top[opacity_int * (Gsize + 1) + y];
+ } else {
+ d = sum_gaussian(gaussian_map,
+ opacity, center, y - center, width, height);
+ }
+ memset(&data[y * swidth + gsize], d, x_diff);
+ memset(&data[(sheight - y - 1) * swidth + gsize], d, x_diff);
+ }
+ }
+
+ /*
+ * sides
+ */
+
+ for (x = 0; x < xlimit; x++) {
+ if (xlimit == Gsize) {
+ d = shadow_top[opacity_int * (Gsize + 1) + x];
+ } else {
+ d = sum_gaussian(gaussian_map,
+ opacity, x - center, center, width, height);
+ }
+ for (y = gsize; y < sheight - gsize; y++) {
+ data[y * swidth + x] = d;
+ data[y * swidth + (swidth - x - 1)] = d;
+ }
+ }
+
+ // zero extra pixels
+ if (clear_shadow && width > gsize && height > gsize) {
+ int r = gsize / 2;
+ int sr = r - 2;
+ int er = r + 4;
+ for (y = sr; y < (sheight - er); y++) {
+ for (x = sr; x < (swidth - er); x++) {
+ data[y * swidth + x] = 0;
+ }
+ }
+ }
+
+ return ximage;
+}
+
+static Picture
+shadow_picture(Display *dpy, double opacity, Picture alpha_pict,
+ int width, int height, int *wp, int *hp) {
+ XImage *shadowImage;
+ Pixmap shadowPixmap;
+ Picture shadow_picture;
+ GC gc;
+
+ shadowImage = make_shadow(dpy, opacity, width, height);
+ if (!shadowImage) return None;
+
+ shadowPixmap = XCreatePixmap(dpy, root,
+ shadowImage->width, shadowImage->height, 8);
+
+ if (!shadowPixmap) {
+ XDestroyImage(shadowImage);
+ return None;
+ }
+
+ shadow_picture = XRenderCreatePicture(dpy, shadowPixmap,
+ XRenderFindStandardFormat(dpy, PictStandardA8), 0, 0);
+
+ if (!shadow_picture) {
+ XDestroyImage(shadowImage);
+ XFreePixmap(dpy, shadowPixmap);
+ return None;
+ }
+
+ gc = XCreateGC(dpy, shadowPixmap, 0, 0);
+ if (!gc) {
+ XDestroyImage(shadowImage);
+ XFreePixmap(dpy, shadowPixmap);
+ XRenderFreePicture(dpy, shadow_picture);
+ return None;
+ }
+
+ XPutImage(
+ dpy, shadowPixmap, gc, shadowImage, 0, 0, 0, 0,
+ shadowImage->width, shadowImage->height);
+
+ *wp = shadowImage->width;
+ *hp = shadowImage->height;
+ XFreeGC(dpy, gc);
+ XDestroyImage(shadowImage);
+ XFreePixmap(dpy, shadowPixmap);
+
+ return shadow_picture;
+}
+
+static Picture
+solid_picture(Display *dpy, Bool argb, double a,
+ double r, double g, double b) {
+ Pixmap pixmap;
+ Picture picture;
+ XRenderPictureAttributes pa;
+ XRenderColor c;
+
+ pixmap = XCreatePixmap(dpy, root, 1, 1, argb ? 32 : 8);
+
+ if (!pixmap) return None;
+
+ pa.repeat = True;
+ picture = XRenderCreatePicture(dpy, pixmap,
+ XRenderFindStandardFormat(dpy, argb
+ ? PictStandardARGB32 : PictStandardA8),
+ CPRepeat,
+ &pa);
+
+ if (!picture) {
+ XFreePixmap(dpy, pixmap);
+ return None;
+ }
+
+ c.alpha = a * 0xffff;
+ c.red = r * 0xffff;
+ c.green = g * 0xffff;
+ c.blue = b * 0xffff;
+
+ XRenderFillRectangle(dpy, PictOpSrc, picture, &c, 0, 0, 1, 1);
+ XFreePixmap(dpy, pixmap);
+
+ return picture;
+}
+
+/**
+ * Errors
+ */
+
+static void
+discard_ignore(Display *dpy, unsigned long sequence) {
+ while (ignore_head) {
+ if ((long) (sequence - ignore_head->sequence) > 0) {
+ ignore *next = ignore_head->next;
+ free(ignore_head);
+ ignore_head = next;
+ if (!ignore_head) {
+ ignore_tail = &ignore_head;
+ }
+ } else {
+ break;
+ }
+ }
+}
+
+static void
+set_ignore(Display *dpy, unsigned long sequence) {
+ ignore *i = malloc(sizeof(ignore));
+ if (!i) return;
+
+ i->sequence = sequence;
+ i->next = 0;
+ *ignore_tail = i;
+ ignore_tail = &i->next;
+}
+
+static int
+should_ignore(Display *dpy, unsigned long sequence) {
+ discard_ignore(dpy, sequence);
+ return ignore_head && ignore_head->sequence == sequence;
+}
+
+/**
+ * Windows
+ */
+
+static win *
+find_win(Display *dpy, Window id) {
+ win *w;
+
+ for (w = list; w; w = w->next) {
+ if (w->id == id && !w->destroyed)
+ return w;
+ }
+
+ return 0;
+}
+
+static win *
+find_toplevel(Display *dpy, Window id) {
+ win *w;
+
+ for (w = list; w; w = w->next) {
+ if (w->client_win == id && !w->destroyed)
+ return w;
+ }
+
+ return 0;
+}
+
+static Picture
+root_tile_f(Display *dpy) {
+ Picture picture;
+ Atom actual_type;
+ Pixmap pixmap;
+ int actual_format;
+ unsigned long nitems;
+ unsigned long bytes_after;
+ unsigned char *prop;
+ Bool fill;
+ XRenderPictureAttributes pa;
+ int p;
+
+ pixmap = None;
+
+ for (p = 0; background_props[p]; p++) {
+ if (XGetWindowProperty(dpy, root,
+ XInternAtom(dpy, background_props[p], False),
+ 0, 4, False, AnyPropertyType, &actual_type,
+ &actual_format, &nitems, &bytes_after, &prop
+ ) == Success
+ && actual_type == XInternAtom(dpy, "PIXMAP", False)
+ && actual_format == 32 && nitems == 1) {
+ memcpy(&pixmap, prop, 4);
+ XFree(prop);
+ fill = False;
+ break;
+ }
+ }
+
+ if (!pixmap) {
+ pixmap = XCreatePixmap(dpy, root, 1, 1, DefaultDepth(dpy, scr));
+ fill = True;
+ }
+
+ pa.repeat = True;
+ picture = XRenderCreatePicture(
+ dpy, pixmap, XRenderFindVisualFormat(dpy, DefaultVisual(dpy, scr)),
+ CPRepeat, &pa);
+
+ if (fill) {
+ XRenderColor c;
+
+ c.red = c.green = c.blue = 0x8080;
+ c.alpha = 0xffff;
+ XRenderFillRectangle(
+ dpy, PictOpSrc, picture, &c, 0, 0, 1, 1);
+ }
+
+ return picture;
+}
+
+static void
+paint_root(Display *dpy) {
+ if (!root_tile) {
+ root_tile = root_tile_f(dpy);
+ }
+
+ XRenderComposite(
+ dpy, PictOpSrc, root_tile, None,
+ root_buffer, 0, 0, 0, 0, 0, 0,
+ root_width, root_height);
+}
+
+static XserverRegion
+win_extents(Display *dpy, win *w) {
+ XRectangle r;
+
+ r.x = w->a.x;
+ r.y = w->a.y;
+ r.width = w->a.width + w->a.border_width * 2;
+ r.height = w->a.height + w->a.border_width * 2;
+
+ if (win_type_shadow[w->window_type]) {
+ XRectangle sr;
+
+ w->shadow_dx = shadow_offset_x;
+ w->shadow_dy = shadow_offset_y;
+
+ if (!w->shadow) {
+ double opacity = shadow_opacity;
+
+ if (!clear_shadow) {
+ if (w->mode != WINDOW_SOLID) {
+ opacity = opacity * ((double)w->opacity) / ((double)OPAQUE);
+ }
+
+ if (HAS_FRAME_OPACITY(w)) {
+ opacity = opacity * frame_opacity;
+ }
+ }
+
+ w->shadow = shadow_picture(
+ dpy, opacity, w->alpha_pict,
+ w->a.width + w->a.border_width * 2,
+ w->a.height + w->a.border_width * 2,
+ &w->shadow_width, &w->shadow_height);
+ }
+
+ sr.x = w->a.x + w->shadow_dx;
+ sr.y = w->a.y + w->shadow_dy;
+ sr.width = w->shadow_width;
+ sr.height = w->shadow_height;
+
+ if (sr.x < r.x) {
+ r.width = (r.x + r.width) - sr.x;
+ r.x = sr.x;
+ }
+
+ if (sr.y < r.y) {
+ r.height = (r.y + r.height) - sr.y;
+ r.y = sr.y;
+ }
+
+ if (sr.x + sr.width > r.x + r.width) {
+ r.width = sr.x + sr.width - r.x;
+ }
+
+ if (sr.y + sr.height > r.y + r.height) {
+ r.height = sr.y + sr.height - r.y;
+ }
+ }
+
+ return XFixesCreateRegion(dpy, &r, 1);
+}
+
+static XserverRegion
+border_size(Display *dpy, win *w) {
+ XserverRegion border;
+
+ /*
+ * if window doesn't exist anymore, this will generate an error
+ * as well as not generate a region. Perhaps a better XFixes
+ * architecture would be to have a request that copies instead
+ * of creates, that way you'd just end up with an empty region
+ * instead of an invalid XID.
+ */
+
+ set_ignore(dpy, NextRequest(dpy));
+ border = XFixesCreateRegionFromWindow(
+ dpy, w->id, WindowRegionBounding);
+
+ /* translate this */
+ set_ignore(dpy, NextRequest(dpy));
+ XFixesTranslateRegion(dpy, border,
+ w->a.x + w->a.border_width,
+ w->a.y + w->a.border_width);
+
+ return border;
+}
+
+static Window
+find_client_win(Display *dpy, Window win) {
+ Atom WM_STATE = XInternAtom(dpy, "WM_STATE", False);
+
+ Window root, parent;
+ Window *children;
+ unsigned int nchildren;
+ unsigned int i;
+ Atom type = None;
+ int format;
+ unsigned long nitems, after;
+ unsigned char *data;
+ Window client = 0;
+
+ XGetWindowProperty(
+ dpy, win, WM_STATE, 0, 0, False,
+ AnyPropertyType, &type, &format, &nitems,
+ &after, &data);
+
+ if (type) return win;
+
+ if (!XQueryTree(dpy, win, &root,
+ &parent, &children, &nchildren)) {
+ return 0;
+ }
+
+ for (i = 0; i < nchildren; i++) {
+ client = find_client_win(dpy, children[i]);
+ if (client) break;
+ }
+
+ if (children) XFree((char *)children);
+
+ return client;
+}
+
+static void
+get_frame_extents(Display *dpy, Window w,
+ unsigned int *left,
+ unsigned int *right,
+ unsigned int *top,
+ unsigned int *bottom) {
+ long *extents;
+ Atom type;
+ int format;
+ unsigned long nitems, after;
+ unsigned char *data = NULL;
+ int result;
+
+ *left = 0;
+ *right = 0;
+ *top = 0;
+ *bottom = 0;
+
+ // w = find_client_win(dpy, w);
+ if (!w) return;
+
+ result = XGetWindowProperty(
+ dpy, w, XInternAtom(dpy, "_NET_FRAME_EXTENTS", False),
+ 0L, 4L, False, AnyPropertyType,
+ &type, &format, &nitems, &after,
+ (unsigned char **)&data);
+
+ if (result == Success) {
+ if (nitems == 4 && after == 0) {
+ extents = (long *)data;
+ *left =
+ (unsigned int)extents[0];
+ *right =
+ (unsigned int)extents[1];
+ *top =
+ (unsigned int)extents[2];
+ *bottom =
+ (unsigned int)extents[3];
+ }
+ XFree(data);
+ }
+}
+
+static void
+paint_all(Display *dpy, XserverRegion region) {
+ win *w;
+ win *t = 0;
+
+ if (!region) {
+ XRectangle r;
+ r.x = 0;
+ r.y = 0;
+ r.width = root_width;
+ r.height = root_height;
+ region = XFixesCreateRegion(dpy, &r, 1);
+ }
+
+#if MONITOR_REPAINT
+ root_buffer = root_picture;
+#else
+ if (!root_buffer) {
+ Pixmap rootPixmap = XCreatePixmap(
+ dpy, root, root_width, root_height,
+ DefaultDepth(dpy, scr));
+
+ root_buffer = XRenderCreatePicture(dpy, rootPixmap,
+ XRenderFindVisualFormat(dpy, DefaultVisual(dpy, scr)),
+ 0, 0);
+
+ XFreePixmap(dpy, rootPixmap);
+ }
+#endif
+
+ XFixesSetPictureClipRegion(dpy, root_picture, 0, 0, region);
+
+#if MONITOR_REPAINT
+ XRenderComposite(
+ dpy, PictOpSrc, black_picture, None,
+ root_picture, 0, 0, 0, 0, 0, 0,
+ root_width, root_height);
+#endif
+
+#if DEBUG_REPAINT
+ printf("paint:");
+#endif
+
+ for (w = list; w; w = w->next) {
+
+#if CAN_DO_USABLE
+ if (!w->usable) continue;
+#endif
+
+ /* never painted, ignore it */
+ if (!w->damaged) continue;
+
+ /* if invisible, ignore it */
+ if (w->a.x + w->a.width < 1 || w->a.y + w->a.height < 1
+ || w->a.x >= root_width || w->a.y >= root_height) {
+ continue;
+ }
+
+ if (!w->picture) {
+ XRenderPictureAttributes pa;
+ XRenderPictFormat *format;
+ Drawable draw = w->id;
+
+#if HAS_NAME_WINDOW_PIXMAP
+ if (has_name_pixmap && !w->pixmap) {
+ set_ignore(dpy, NextRequest(dpy));
+ w->pixmap = XCompositeNameWindowPixmap(dpy, w->id);
+ }
+ if (w->pixmap) draw = w->pixmap;
+#endif
+
+ format = XRenderFindVisualFormat(dpy, w->a.visual);
+ pa.subwindow_mode = IncludeInferiors;
+ w->picture = XRenderCreatePicture(
+ dpy, draw, format, CPSubwindowMode, &pa);
+ }
+
+#if DEBUG_REPAINT
+ printf(" 0x%x", w->id);
+#endif
+
+ if (clip_changed) {
+ if (w->border_size) {
+ set_ignore(dpy, NextRequest(dpy));
+ XFixesDestroyRegion(dpy, w->border_size);
+ w->border_size = None;
+ }
+ if (w->extents) {
+ XFixesDestroyRegion(dpy, w->extents);
+ w->extents = None;
+ }
+ if (w->border_clip) {
+ XFixesDestroyRegion(dpy, w->border_clip);
+ w->border_clip = None;
+ }
+ }
+
+ if (!w->border_size) {
+ w->border_size = border_size (dpy, w);
+ }
+
+ if (!w->extents) {
+ w->extents = win_extents(dpy, w);
+ }
+
+ if (w->mode == WINDOW_SOLID && !HAS_FRAME_OPACITY(w)) {
+ int x, y, wid, hei;
+
+#if HAS_NAME_WINDOW_PIXMAP
+ x = w->a.x;
+ y = w->a.y;
+ wid = w->a.width + w->a.border_width * 2;
+ hei = w->a.height + w->a.border_width * 2;
+#else
+ x = w->a.x + w->a.border_width;
+ y = w->a.y + w->a.border_width;
+ wid = w->a.width;
+ hei = w->a.height;
+#endif
+
+ XFixesSetPictureClipRegion(dpy, root_buffer, 0, 0, region);
+ set_ignore(dpy, NextRequest(dpy));
+
+ XFixesSubtractRegion(dpy, region, region, w->border_size);
+ set_ignore(dpy, NextRequest(dpy));
+
+ XRenderComposite(
+ dpy, PictOpSrc, w->picture,
+ None, root_buffer, 0, 0, 0, 0,
+ x, y, wid, hei);
+ }
+
+ if (!w->border_clip) {
+ w->border_clip = XFixesCreateRegion(dpy, 0, 0);
+ XFixesCopyRegion(dpy, w->border_clip, region);
+ }
+
+ w->prev_trans = t;
+ t = w;
+ }
+
+#if DEBUG_REPAINT
+ printf("\n");
+ fflush(stdout);
+#endif
+
+ XFixesSetPictureClipRegion(dpy,
+ root_buffer, 0, 0, region);
+ paint_root(dpy);
+
+ for (w = t; w; w = w->prev_trans) {
+ XFixesSetPictureClipRegion(dpy,
+ root_buffer, 0, 0, w->border_clip);
+
+ if (win_type_shadow[w->window_type]) {
+ XRenderComposite(
+ dpy, PictOpOver, black_picture, w->shadow,
+ root_buffer, 0, 0, 0, 0,
+ w->a.x + w->shadow_dx, w->a.y + w->shadow_dy,
+ w->shadow_width, w->shadow_height);
+ }
+
+ if (w->opacity != OPAQUE && !w->alpha_pict) {
+ w->alpha_pict = solid_picture(
+ dpy, False, (double)w->opacity / OPAQUE, 0, 0, 0);
+ }
+ if (HAS_FRAME_OPACITY(w) && !w->alpha_border_pict) {
+ w->alpha_border_pict = solid_picture(
+ dpy, False, frame_opacity, 0, 0, 0);
+ }
+
+ if (w->mode != WINDOW_SOLID || HAS_FRAME_OPACITY(w)) {
+ int x, y, wid, hei;
+
+#if HAS_NAME_WINDOW_PIXMAP
+ x = w->a.x;
+ y = w->a.y;
+ wid = w->a.width + w->a.border_width * 2;
+ hei = w->a.height + w->a.border_width * 2;
+#else
+ x = w->a.x + w->a.border_width;
+ y = w->a.y + w->a.border_width;
+ wid = w->a.width;
+ hei = w->a.height;
+#endif
+
+ set_ignore(dpy, NextRequest(dpy));
+
+ if (!HAS_FRAME_OPACITY(w)) {
+ XRenderComposite(
+ dpy, PictOpOver, w->picture, w->alpha_pict,
+ root_buffer, 0, 0, 0, 0, x, y, wid, hei);
+ } else {
+ unsigned int t = w->top_width;
+ unsigned int l = w->left_width;
+ unsigned int b = w->bottom_width;
+ unsigned int r = w->right_width;
+
+ /* top */
+ XRenderComposite(
+ dpy, PictOpOver, w->picture, w->alpha_border_pict, root_buffer,
+ 0, 0, 0, 0, x, y, wid, t);
+
+ /* left */
+ XRenderComposite(
+ dpy, PictOpOver, w->picture, w->alpha_border_pict, root_buffer,
+ 0, t, 0, t, x, y + t, l, hei - t);
+
+ /* bottom */
+ XRenderComposite(
+ dpy, PictOpOver, w->picture, w->alpha_border_pict, root_buffer,
+ l, hei - b, l, hei - b, x + l, y + hei - b, wid - l - r, b);
+
+ /* right */
+ XRenderComposite(
+ dpy, PictOpOver, w->picture, w->alpha_border_pict, root_buffer,
+ wid - r, t, wid - r, t, x + wid - r, y + t, r, hei - t);
+
+ /* body */
+ XRenderComposite(
+ dpy, PictOpOver, w->picture, w->alpha_pict, root_buffer,
+ l, t, l, t, x + l, y + t, wid - l - r, hei - t - b);
+ }
+ }
+
+ XFixesDestroyRegion(dpy, w->border_clip);
+ w->border_clip = None;
+ }
+
+ XFixesDestroyRegion(dpy, region);
+
+ if (root_buffer != root_picture) {
+ XFixesSetPictureClipRegion(dpy, root_buffer, 0, 0, None);
+ XRenderComposite(
+ dpy, PictOpSrc, root_buffer, None,
+ root_picture, 0, 0, 0, 0,
+ 0, 0, root_width, root_height);
+ }
+}
+
+static void
+add_damage(Display *dpy, XserverRegion damage) {
+ if (all_damage) {
+ XFixesUnionRegion(dpy, all_damage, all_damage, damage);
+ XFixesDestroyRegion(dpy, damage);
+ } else {
+ all_damage = damage;
+ }
+}
+
+static void
+repair_win(Display *dpy, win *w) {
+ XserverRegion parts;
+
+ if (!w->damaged) {
+ parts = win_extents(dpy, w);
+ set_ignore(dpy, NextRequest(dpy));
+ XDamageSubtract(dpy, w->damage, None, None);
+ } else {
+ parts = XFixesCreateRegion(dpy, 0, 0);
+ set_ignore(dpy, NextRequest(dpy));
+ XDamageSubtract(dpy, w->damage, None, parts);
+ XFixesTranslateRegion(dpy, parts,
+ w->a.x + w->a.border_width,
+ w->a.y + w->a.border_width);
+ }
+
+ add_damage(dpy, parts);
+ w->damaged = 1;
+}
+
+#if DEBUG_WINTYPE
+static const char*
+wintype_name(wintype type) {
+ const char *t;
+
+ switch (type) {
+ case WINTYPE_DESKTOP:
+ t = "desktop";
+ break;
+ case WINTYPE_DOCK:
+ t = "dock";
+ break;
+ case WINTYPE_TOOLBAR:
+ t = "toolbar";
+ break;
+ case WINTYPE_MENU:
+ t = "menu";
+ break;
+ case WINTYPE_UTILITY:
+ t = "utility";
+ break;
+ case WINTYPE_SPLASH:
+ t = "slash";
+ break;
+ case WINTYPE_DIALOG:
+ t = "dialog";
+ break;
+ case WINTYPE_NORMAL:
+ t = "normal";
+ break;
+ case WINTYPE_DROPDOWN_MENU:
+ t = "dropdown";
+ break;
+ case WINTYPE_POPUP_MENU:
+ t = "popup";
+ break;
+ case WINTYPE_TOOLTIP:
+ t = "tooltip";
+ break;
+ case WINTYPE_NOTIFY:
+ t = "notification";
+ break;
+ case WINTYPE_COMBO:
+ t = "combo";
+ break;
+ case WINTYPE_DND:
+ t = "dnd";
+ break;
+ default:
+ t = "unknown";
+ break;
+ }
+
+ return t;
+}
+#endif
+
+static wintype
+get_wintype_prop(Display * dpy, Window w) {
+ Atom actual;
+ wintype ret;
+ int format;
+ unsigned long n, left, off;
+ unsigned char *data;
+
+ ret = WINTYPE_UNKNOWN;
+ off = 0;
+
+ do {
+ set_ignore(dpy, NextRequest(dpy));
+
+ int result = XGetWindowProperty(
+ dpy, w, win_type_atom, off, 1L, False, XA_ATOM,
+ &actual, &format, &n, &left, &data);
+
+ if (result != Success) break;
+
+ if (data != None) {
+ int i;
+
+ for (i = 1; i < NUM_WINTYPES; ++i) {
+ Atom a;
+ memcpy(&a, data, sizeof(Atom));
+ if (a == win_type[i]) {
+ /* known type */
+ ret = i;
+ break;
+ }
+ }
+
+ XFree((void *) data);
+ }
+
+ ++off;
+ } while (left >= 4 && ret == WINTYPE_UNKNOWN);
+
+ return ret;
+}
+
+static wintype
+determine_wintype(Display *dpy, Window w, Window top) {
+ Window root_return, parent_return;
+ Window *children = NULL;
+ unsigned int nchildren, i;
+ wintype type;
+
+ type = get_wintype_prop(dpy, w);
+ if (type != WINTYPE_UNKNOWN) return type;
+
+ set_ignore(dpy, NextRequest(dpy));
+ if (!XQueryTree(dpy, w, &root_return, &parent_return,
+ &children, &nchildren)) {
+ /* XQueryTree failed. */
+ if (children) XFree((void *)children);
+ return WINTYPE_UNKNOWN;
+ }
+
+ for (i = 0; i < nchildren; i++) {
+ type = determine_wintype(dpy, children[i], top);
+ if (type != WINTYPE_UNKNOWN) return type;
+ }
+
+ if (children) {
+ XFree((void *)children);
+ }
+
+ if (w != top) {
+ return WINTYPE_UNKNOWN;
+ } else {
+ return WINTYPE_NORMAL;
+ }
+}
+
+static void
+map_win(Display *dpy, Window id,
+ unsigned long sequence, Bool fade,
+ Bool override_redirect) {
+ win *w = find_win(dpy, id);
+
+ if (!w) return;
+
+ w->a.map_state = IsViewable;
+ w->window_type = determine_wintype(dpy, w->id, w->id);
+
+#if DEBUG_WINTYPE
+ printf("window 0x%x type %s\n",
+ w->id, wintype_name(w->window_type));
+#endif
+
+ /* select before reading the property
+ so that no property changes are lost */
+ if (!override_redirect) {
+ XSelectInput(dpy, id, PropertyChangeMask | FocusChangeMask);
+ }
+
+ // this causes problems for inactive transparency
+ //w->opacity = get_opacity_prop(dpy, w, OPAQUE);
+
+ determine_mode(dpy, w);
+
+#if CAN_DO_USABLE
+ w->damage_bounds.x = w->damage_bounds.y = 0;
+ w->damage_bounds.width = w->damage_bounds.height = 0;
+#endif
+ w->damaged = 0;
+
+ if (fade && win_type_fade[w->window_type]) {
+ set_fade(
+ dpy, w, 0, get_opacity_percent(dpy, w),
+ fade_in_step, 0, True, True);
+ }
+
+ /* if any configure events happened while
+ the window was unmapped, then configure
+ the window to its correct place */
+ if (w->need_configure) {
+ configure_win(dpy, &w->queue_configure);
+ }
+}
+
+static void
+finish_unmap_win(Display *dpy, win *w) {
+ w->damaged = 0;
+#if CAN_DO_USABLE
+ w->usable = False;
+#endif
+
+ if (w->extents != None) {
+ /* destroys region */
+ add_damage(dpy, w->extents);
+ w->extents = None;
+ }
+
+#if HAS_NAME_WINDOW_PIXMAP
+ if (w->pixmap) {
+ XFreePixmap(dpy, w->pixmap);
+ w->pixmap = None;
+ }
+#endif
+
+ if (w->picture) {
+ set_ignore(dpy, NextRequest(dpy));
+ XRenderFreePicture(dpy, w->picture);
+ w->picture = None;
+ }
+
+ if (w->border_size) {
+ set_ignore(dpy, NextRequest(dpy));
+ XFixesDestroyRegion(dpy, w->border_size);
+ w->border_size = None;
+ }
+
+ if (w->shadow) {
+ XRenderFreePicture(dpy, w->shadow);
+ w->shadow = None;
+ }
+
+ if (w->border_clip) {
+ XFixesDestroyRegion(dpy, w->border_clip);
+ w->border_clip = None;
+ }
+
+ clip_changed = True;
+}
+
+#if HAS_NAME_WINDOW_PIXMAP
+static void
+unmap_callback(Display *dpy, win *w) {
+ finish_unmap_win(dpy, w);
+}
+#endif
+
+static void
+unmap_win(Display *dpy, Window id, Bool fade) {
+ win *w = find_win(dpy, id);
+
+ if (!w) return;
+
+ w->a.map_state = IsUnmapped;
+
+ /* don't care about properties anymore */
+ set_ignore(dpy, NextRequest(dpy));
+ XSelectInput(dpy, w->id, 0);
+
+#if HAS_NAME_WINDOW_PIXMAP
+ if (w->pixmap && fade && win_type_fade[w->window_type]) {
+ set_fade(dpy, w, w->opacity * 1.0 / OPAQUE, 0.0,
+ fade_out_step, unmap_callback, False, True);
+ } else
+#endif
+ finish_unmap_win(dpy, w);
+}
+
+static unsigned int
+get_opacity_prop(Display *dpy, win *w, unsigned int def) {
+ Atom actual;
+ int format;
+ unsigned long n, left;
+
+ unsigned char *data;
+ int result = XGetWindowProperty(
+ dpy, w->id, opacity_atom, 0L, 1L, False,
+ XA_CARDINAL, &actual, &format, &n, &left, &data);
+
+ if (result == Success && data != NULL) {
+ unsigned int i;
+ memcpy(&i, data, sizeof(unsigned int));
+ XFree((void *)data);
+ return i;
+ }
+
+ return def;
+}
+
+static double
+get_opacity_percent(Display *dpy, win *w) {
+ double def = win_type_opacity[w->window_type];
+ unsigned int opacity =
+ get_opacity_prop(dpy, w, (unsigned int)(OPAQUE * def));
+
+ return opacity * 1.0 / OPAQUE;
+}
+
+static void
+determine_mode(Display *dpy, win *w) {
+ int mode;
+ XRenderPictFormat *format;
+
+ /* if trans prop == -1 fall back on previous tests*/
+
+ if (w->alpha_pict) {
+ XRenderFreePicture(dpy, w->alpha_pict);
+ w->alpha_pict = None;
+ }
+
+ if (w->alpha_border_pict) {
+ XRenderFreePicture(dpy, w->alpha_border_pict);
+ w->alpha_border_pict = None;
+ }
+
+ if (w->shadow_pict) {
+ XRenderFreePicture(dpy, w->shadow_pict);
+ w->shadow_pict = None;
+ }
+
+ if (w->a.class == InputOnly) {
+ format = 0;
+ } else {
+ format = XRenderFindVisualFormat(dpy, w->a.visual);
+ }
+
+ if (format && format->type == PictTypeDirect
+ && format->direct.alphaMask) {
+ mode = WINDOW_ARGB;
+ } else if (w->opacity != OPAQUE) {
+ mode = WINDOW_TRANS;
+ } else {
+ mode = WINDOW_SOLID;
+ }
+
+ w->mode = mode;
+
+ if (w->extents) {
+ XserverRegion damage;
+ damage = XFixesCreateRegion(dpy, 0, 0);
+ XFixesCopyRegion(dpy, damage, w->extents);
+ add_damage(dpy, damage);
+ }
+}
+
+static void
+set_opacity(Display *dpy, win *w, unsigned long opacity) {
+ w->opacity = opacity;
+ determine_mode(dpy, w);
+ if (w->shadow) {
+ XRenderFreePicture(dpy, w->shadow);
+ w->shadow = None;
+
+ if (w->extents != None) {
+ XFixesDestroyRegion(dpy, w->extents);
+ }
+
+ /* rebuild the shadow */
+ w->extents = win_extents(dpy, w);
+ }
+}
+
+static void
+add_win(Display *dpy, Window id, Window prev, Bool override_redirect) {
+ win *new = malloc(sizeof(win));
+ win **p;
+
+ if (!new) return;
+
+ if (prev) {
+ for (p = &list; *p; p = &(*p)->next) {
+ if ((*p)->id == prev && !(*p)->destroyed)
+ break;
+ }
+ } else {
+ p = &list;
+ }
+
+ new->id = id;
+ set_ignore(dpy, NextRequest(dpy));
+
+ if (!XGetWindowAttributes(dpy, id, &new->a)) {
+ free(new);
+ return;
+ }
+
+ new->damaged = 0;
+#if CAN_DO_USABLE
+ new->usable = False;
+#endif
+#if HAS_NAME_WINDOW_PIXMAP
+ new->pixmap = None;
+#endif
+ new->picture = None;
+
+ if (new->a.class == InputOnly) {
+ new->damage_sequence = 0;
+ new->damage = None;
+ } else {
+ new->damage_sequence = NextRequest(dpy);
+ set_ignore(dpy, NextRequest(dpy));
+ new->damage = XDamageCreate(dpy, id, XDamageReportNonEmpty);
+ }
+
+ new->alpha_pict = None;
+ new->alpha_border_pict = None;
+ new->shadow_pict = None;
+ new->border_size = None;
+ new->extents = None;
+ new->shadow = None;
+ new->shadow_dx = 0;
+ new->shadow_dy = 0;
+ new->shadow_width = 0;
+ new->shadow_height = 0;
+ new->opacity = OPAQUE;
+ new->destroyed = False;
+ new->need_configure = False;
+ new->window_type = WINTYPE_UNKNOWN;
+
+ new->border_clip = None;
+ new->prev_trans = 0;
+
+ new->left_width = 0;
+ new->right_width = 0;
+ new->top_width = 0;
+ new->bottom_width = 0;
+
+ new->client_win = 0;
+ if (!override_redirect) {
+ Window cw = find_client_win(dpy, new->id);
+ if (cw) {
+ get_frame_extents(dpy, cw,
+ &new->left_width, &new->right_width,
+ &new->top_width, &new->bottom_width);
+ new->client_win = cw;
+ XSelectInput(dpy, cw, PropertyChangeMask);
+ }
+ }
+
+ new->next = *p;
+ *p = new;
+
+ if (new->a.map_state == IsViewable) {
+ new->window_type = determine_wintype(dpy, id, id);
+ if (inactive_opacity && IS_NORMAL_WIN(new)) {
+ new->opacity = INACTIVE_OPACITY;
+ }
+ map_win(dpy, id, new->damage_sequence - 1, True, override_redirect);
+ }
+}
+
+static void
+restack_win(Display *dpy, win *w, Window new_above) {
+ Window old_above;
+
+ if (w->next) {
+ old_above = w->next->id;
+ } else {
+ old_above = None;
+ }
+
+ if (old_above != new_above) {
+ win **prev;
+
+ /* unhook */
+ for (prev = &list; *prev; prev = &(*prev)->next) {
+ if ((*prev) == w) break;
+ }
+
+ *prev = w->next;
+
+ /* rehook */
+ for (prev = &list; *prev; prev = &(*prev)->next) {
+ if ((*prev)->id == new_above && !(*prev)->destroyed)
+ break;
+ }
+
+ w->next = *prev;
+ *prev = w;
+ }
+}
+
+static void
+configure_win(Display *dpy, XConfigureEvent *ce) {
+ win *w = find_win(dpy, ce->window);
+ XserverRegion damage = None;
+
+ if (!w) {
+ if (ce->window == root) {
+ if (root_buffer) {
+ XRenderFreePicture(dpy, root_buffer);
+ root_buffer = None;
+ }
+ root_width = ce->width;
+ root_height = ce->height;
+ }
+ return;
+ }
+
+ if (w->a.map_state == IsUnmapped) {
+ /* save the configure event for when the window maps */
+ w->need_configure = True;
+ w->queue_configure = *ce;
+ } else {
+ w->need_configure = False;
+
+#if CAN_DO_USABLE
+ if (w->usable)
+#endif
+ {
+ damage = XFixesCreateRegion(dpy, 0, 0);
+ if (w->extents != None)
+ XFixesCopyRegion(dpy, damage, w->extents);
+ }
+
+ w->a.x = ce->x;
+ w->a.y = ce->y;
+
+ if (w->a.width != ce->width || w->a.height != ce->height) {
+#if HAS_NAME_WINDOW_PIXMAP
+ if (w->pixmap) {
+ XFreePixmap(dpy, w->pixmap);
+ w->pixmap = None;
+ if (w->picture) {
+ XRenderFreePicture(dpy, w->picture);
+ w->picture = None;
+ }
+ }
+#endif
+
+ if (w->shadow) {
+ XRenderFreePicture(dpy, w->shadow);
+ w->shadow = None;
+ }
+ }
+
+ w->a.width = ce->width;
+ w->a.height = ce->height;
+ w->a.border_width = ce->border_width;
+
+ if (w->a.map_state != IsUnmapped && damage) {
+ XserverRegion extents = win_extents(dpy, w);
+ XFixesUnionRegion(dpy, damage, damage, extents);
+ XFixesDestroyRegion(dpy, extents);
+ add_damage(dpy, damage);
+ }
+
+ clip_changed = True;
+ }
+
+ w->a.override_redirect = ce->override_redirect;
+ restack_win(dpy, w, ce->above);
+}
+
+static void
+circulate_win(Display *dpy, XCirculateEvent *ce) {
+ win *w = find_win(dpy, ce->window);
+ Window new_above;
+
+ if (!w) return;
+
+ if (ce->place == PlaceOnTop) {
+ new_above = list->id;
+ } else {
+ new_above = None;
+ }
+
+ restack_win(dpy, w, new_above);
+ clip_changed = True;
+}
+
+static void
+finish_destroy_win(Display *dpy, Window id) {
+ win **prev, *w;
+
+ for (prev = &list; (w = *prev); prev = &w->next) {
+ if (w->id == id && w->destroyed) {
+ finish_unmap_win(dpy, w);
+ *prev = w->next;
+
+ if (w->alpha_pict) {
+ XRenderFreePicture(dpy, w->alpha_pict);
+ w->alpha_pict = None;
+ }
+
+ if (w->alpha_border_pict) {
+ XRenderFreePicture(dpy, w->alpha_border_pict);
+ w->alpha_border_pict = None;
+ }
+
+ if (w->shadow_pict) {
+ XRenderFreePicture(dpy, w->shadow_pict);
+ w->shadow_pict = None;
+ }
+
+ /* fix leak, from freedesktop repo */
+ if (w->shadow) {
+ XRenderFreePicture (dpy, w->shadow);
+ w->shadow = None;
+ }
+
+ if (w->damage != None) {
+ set_ignore(dpy, NextRequest(dpy));
+ XDamageDestroy(dpy, w->damage);
+ w->damage = None;
+ }
+
+ cleanup_fade(dpy, w);
+ free(w);
+ break;
+ }
+ }
+}
+
+#if HAS_NAME_WINDOW_PIXMAP
+static void
+destroy_callback(Display *dpy, win *w) {
+ finish_destroy_win(dpy, w->id);
+}
+#endif
+
+static void
+destroy_win(Display *dpy, Window id, Bool fade) {
+ win *w = find_win(dpy, id);
+
+ if (w) w->destroyed = True;
+
+#if HAS_NAME_WINDOW_PIXMAP
+ if (w && w->pixmap && fade && win_type_fade[w->window_type]) {
+ set_fade(dpy, w, w->opacity * 1.0 / OPAQUE,
+ 0.0, fade_out_step, destroy_callback,
+ False, True);
+ } else
+#endif
+ {
+ finish_destroy_win(dpy, id);
+ }
+}
+
+static void
+damage_win(Display *dpy, XDamageNotifyEvent *de) {
+ win *w = find_win(dpy, de->drawable);
+
+ if (!w) return;
+
+#if CAN_DO_USABLE
+ if (!w->usable) {
+ if (w->damage_bounds.width == 0 || w->damage_bounds.height == 0) {
+ w->damage_bounds = de->area;
+ } else {
+ if (de->area.x < w->damage_bounds.x) {
+ w->damage_bounds.width += (w->damage_bounds.x - de->area.x);
+ w->damage_bounds.x = de->area.x;
+ }
+ if (de->area.y < w->damage_bounds.y) {
+ w->damage_bounds.height += (w->damage_bounds.y - de->area.y);
+ w->damage_bounds.y = de->area.y;
+ }
+ if (de->area.x + de->area.width
+ > w->damage_bounds.x + w->damage_bounds.width) {
+ w->damage_bounds.width =
+ de->area.x + de->area.width - w->damage_bounds.x;
+ }
+ if (de->area.y + de->area.height
+ > w->damage_bounds.y + w->damage_bounds.height) {
+ w->damage_bounds.height =
+ de->area.y + de->area.height - w->damage_bounds.y;
+ }
+ }
+
+ if (w->damage_bounds.x <= 0
+ && w->damage_bounds.y <= 0
+ && w->a.width <= w->damage_bounds.x + w->damage_bounds.width
+ && w->a.height <= w->damage_bounds.y + w->damage_bounds.height) {
+ clip_changed = True;
+ if (win_type_fade[w->window_type]) {
+ set_fade(dpy, w, 0, get_opacity_percent(dpy, w),
+ fade_in_step, 0, True, True);
+ }
+ w->usable = True;
+ }
+ }
+
+ if (w->usable)
+#endif
+ repair_win(dpy, w);
+}
+
+static int
+error(Display *dpy, XErrorEvent *ev) {
+ int o;
+ const char *name = "Unknown";
+
+ if (should_ignore(dpy, ev->serial)) {
+ return 0;
+ }
+
+ if (ev->request_code == composite_opcode
+ && ev->minor_code == X_CompositeRedirectSubwindows) {
+ fprintf(stderr, "Another composite manager is already running\n");
+ exit(1);
+ }
+
+ o = ev->error_code - xfixes_error;
+ switch (o) {
+ case BadRegion:
+ name = "BadRegion";
+ break;
+ default:
+ break;
+ }
+
+ o = ev->error_code - damage_error;
+ switch (o) {
+ case BadDamage:
+ name = "BadDamage";
+ break;
+ default:
+ break;
+ }
+
+ o = ev->error_code - render_error;
+ switch (o) {
+ case BadPictFormat:
+ name = "BadPictFormat";
+ break;
+ case BadPicture:
+ name = "BadPicture";
+ break;
+ case BadPictOp:
+ name = "BadPictOp";
+ break;
+ case BadGlyphSet:
+ name = "BadGlyphSet";
+ break;
+ case BadGlyph:
+ name = "BadGlyph";
+ break;
+ default:
+ break;
+ }
+
+ printf("error %d (%s) request %d minor %d serial %lu\n",
+ ev->error_code, name, ev->request_code,
+ ev->minor_code, ev->serial);
+
+ return 0;
+}
+
+static void
+expose_root(Display *dpy, Window root, XRectangle *rects, int nrects) {
+ XserverRegion region = XFixesCreateRegion(dpy, rects, nrects);
+ add_damage(dpy, region);
+}
+
+#if DEBUG_EVENTS
+static int
+ev_serial(XEvent *ev) {
+ if (ev->type & 0x7f != KeymapNotify) {
+ return ev->xany.serial;
+ }
+ return NextRequest(ev->xany.display);
+}
+
+static char *
+ev_name(XEvent *ev) {
+ static char buf[128];
+ switch (ev->type & 0x7f) {
+ case Expose:
+ return "Expose";
+ case MapNotify:
+ return "Map";
+ case UnmapNotify:
+ return "Unmap";
+ case ReparentNotify:
+ return "Reparent";
+ case CirculateNotify:
+ return "Circulate";
+ default:
+ if (ev->type == damage_event + XDamageNotify) {
+ return "Damage";
+ }
+ sprintf(buf, "Event %d", ev->type);
+ return buf;
+ }
+}
+
+static Window
+ev_window(XEvent *ev) {
+ switch (ev->type) {
+ case Expose:
+ return ev->xexpose.window;
+ case MapNotify:
+ return ev->xmap.window;
+ case UnmapNotify:
+ return ev->xunmap.window;
+ case ReparentNotify:
+ return ev->xreparent.window;
+ case CirculateNotify:
+ return ev->xcirculate.window;
+ default:
+ if (ev->type == damage_event + XDamageNotify) {
+ return ((XDamageNotifyEvent *)ev)->drawable;
+ }
+ return 0;
+ }
+}
+#endif
+
+/**
+ * Events
+ */
+
+inline static void
+ev_focus_in(XFocusChangeEvent *ev) {
+ if (!inactive_opacity) return;
+
+ win *w = find_win(dpy, ev->window);
+ if (IS_NORMAL_WIN(w)) {
+ set_opacity(dpy, w, OPAQUE);
+ }
+}
+
+inline static void
+ev_focus_out(XFocusChangeEvent *ev) {
+ if (!inactive_opacity) return;
+
+ if (ev->mode == NotifyGrab
+ || (ev->mode == NotifyNormal
+ && (ev->detail == NotifyNonlinear
+ || ev->detail == NotifyNonlinearVirtual))) {
+ ;
+ } else {
+ return;
+ }
+
+ win *w = find_win(dpy, ev->window);
+ if (IS_NORMAL_WIN(w)) {
+ set_opacity(dpy, w, INACTIVE_OPACITY);
+ }
+}
+
+inline static void
+ev_create_notify(XCreateWindowEvent *ev) {
+ add_win(dpy, ev->window, 0, ev->override_redirect);
+}
+
+inline static void
+ev_configure_notify(XConfigureEvent *ev) {
+ configure_win(dpy, ev);
+}
+
+inline static void
+ev_destroy_notify(XDestroyWindowEvent *ev) {
+ destroy_win(dpy, ev->window, True);
+}
+
+inline static void
+ev_map_notify(XMapEvent *ev) {
+ map_win(dpy, ev->window, ev->serial, True, ev->override_redirect);
+}
+
+inline static void
+ev_unmap_notify(XUnmapEvent *ev) {
+ unmap_win(dpy, ev->window, True);
+}
+
+inline static void
+ev_reparent_notify(XReparentEvent *ev) {
+ if (ev->parent == root) {
+ add_win(dpy, ev->window, 0, ev->override_redirect);
+ } else {
+ destroy_win(dpy, ev->window, True);
+ }
+}
+
+inline static void
+ev_circulate_notify(XCirculateEvent *ev) {
+ circulate_win(dpy, ev);
+}
+
+inline static void
+ev_expose(XExposeEvent *ev) {
+ if (ev->window == root) {
+ int more = ev->count + 1;
+ if (n_expose == size_expose) {
+ if (expose_rects) {
+ expose_rects = realloc(expose_rects,
+ (size_expose + more) * sizeof(XRectangle));
+ size_expose += more;
+ } else {
+ expose_rects = malloc(more * sizeof(XRectangle));
+ size_expose = more;
+ }
+ }
+
+ expose_rects[n_expose].x = ev->x;
+ expose_rects[n_expose].y = ev->y;
+ expose_rects[n_expose].width = ev->width;
+ expose_rects[n_expose].height = ev->height;
+ n_expose++;
+
+ if (ev->count == 0) {
+ expose_root(dpy, root, expose_rects, n_expose);
+ n_expose = 0;
+ }
+ }
+}
+
+inline static void
+ev_property_notify(XPropertyEvent *ev) {
+ int p;
+ for (p = 0; background_props[p]; p++) {
+ if (ev->atom == XInternAtom(dpy, background_props[p], False)) {
+ if (root_tile) {
+ XClearArea(dpy, root, 0, 0, 0, 0, True);
+ XRenderFreePicture(dpy, root_tile);
+ root_tile = None;
+ break;
+ }
+ }
+ }
+
+ /* check if Trans property was changed */
+ if (ev->atom == opacity_atom) {
+ /* reset mode and redraw window */
+ win *w = find_win(dpy, ev->window);
+ if (w) {
+ double def = win_type_opacity[w->window_type];
+ set_opacity(dpy, w,
+ get_opacity_prop(dpy, w, (unsigned long)(OPAQUE * def)));
+ }
+ }
+
+ if (frame_opacity && ev->atom == extents_atom) {
+ win *w = find_toplevel(dpy, ev->window);
+ if (w) {
+ get_frame_extents(dpy, w->client_win,
+ &w->left_width, &w->right_width,
+ &w->top_width, &w->bottom_width);
+ }
+ }
+}
+
+inline static void
+ev_damage_notify(XDamageNotifyEvent *ev) {
+ damage_win(dpy, ev);
+}
+
+inline static void
+ev_handle(XEvent *ev) {
+ if ((ev->type & 0x7f) != KeymapNotify) {
+ discard_ignore(dpy, ev->xany.serial);
+ }
+
+#if DEBUG_EVENTS
+ if (ev->type != damage_event + XDamageNotify) {
+ printf("event %10.10s serial 0x%08x window 0x%08x\n",
+ ev_name(ev), ev_serial(ev), ev_window(ev));
+ }
+#endif
+
+ switch (ev->type) {
+ case FocusIn:
+ ev_focus_in((XFocusChangeEvent *)ev);
+ break;
+ case FocusOut:
+ ev_focus_out((XFocusChangeEvent *)ev);
+ break;
+ case CreateNotify:
+ ev_create_notify((XCreateWindowEvent *)ev);
+ break;
+ case ConfigureNotify:
+ ev_configure_notify((XConfigureEvent *)ev);
+ break;
+ case DestroyNotify:
+ ev_destroy_notify((XDestroyWindowEvent *)ev);
+ break;
+ case MapNotify:
+ ev_map_notify((XMapEvent *)ev);
+ break;
+ case UnmapNotify:
+ ev_unmap_notify((XUnmapEvent *)ev);
+ break;
+ case ReparentNotify:
+ ev_reparent_notify((XReparentEvent *)ev);
+ break;
+ case CirculateNotify:
+ ev_circulate_notify((XCirculateEvent *)ev);
+ break;
+ case Expose:
+ ev_expose((XExposeEvent *)ev);
+ break;
+ case PropertyNotify:
+ ev_property_notify((XPropertyEvent *)ev);
+ break;
+ default:
+ if (ev->type == damage_event + XDamageNotify) {
+ ev_damage_notify((XDamageNotifyEvent *)ev);
+ }
+ break;
+ }
+}
+
+/**
+ * Main
+ */
+
+static void
+usage() {
+ fprintf(stderr, "compton v0.0.1\n");
+ fprintf(stderr, "usage: compton [options]\n");
+
+ fprintf(stderr, "Options\n");
+ fprintf(stderr,
+ " -d display\n "
+ "Which display should be managed.\n");
+ fprintf(stderr,
+ " -r radius\n "
+ "The blur radius for shadows. (default 12)\n");
+ fprintf(stderr,
+ " -o opacity\n "
+ "The translucency for shadows. (default .75)\n");
+ fprintf(stderr,
+ " -l left-offset\n "
+ "The left offset for shadows. (default -15)\n");
+ fprintf(stderr,
+ " -t top-offset\n "
+ "The top offset for shadows. (default -15)\n");
+ fprintf(stderr,
+ " -I fade-in-step\n "
+ "Opacity change between steps while fading in. (default 0.028)\n");
+ fprintf(stderr,
+ " -O fade-out-step\n "
+ "Opacity change between steps while fading out. (default 0.03)\n");
+ fprintf(stderr,
+ " -D fade-delta-time\n "
+ "The time between steps in a fade in milliseconds. (default 10)\n");
+ fprintf(stderr,
+ " -m opacity\n "
+ "The opacity for menus. (default 1.0)\n");
+ fprintf(stderr,
+ " -c\n "
+ "Enabled client-side shadows on windows.\n");
+ fprintf(stderr,
+ " -C\n "
+ "Avoid drawing shadows on dock/panel windows.\n");
+ fprintf(stderr,
+ " -z\n "
+ "Zero the part of the shadow's mask behind the window (experimental).");
+ fprintf(stderr,
+ " -f\n "
+ "Fade windows in/out when opening/closing.\n");
+ fprintf(stderr,
+ " -F\n "
+ "Fade windows during opacity changes.\n");
+ fprintf(stderr,
+ " -i opacity\n "
+ "Opacity of inactive windows. (0.1 - 1.0)\n");
+ fprintf(stderr,
+ " -e opacity\n "
+ "Opacity of window titlebars and borders. (0.1 - 1.0)\n");
+ fprintf(stderr,
+ " -G\n "
+ "Don't draw shadows on DND windows\n");
+ fprintf(stderr,
+ " -b daemonize\n "
+ "Daemonize process.\n");
+ fprintf(stderr,
+ " -S\n "
+ "Enable synchronous operation (for debugging).\n");
+
+ exit(1);
+}
+
+static void
+register_cm(int scr) {
+ Window w;
+ Atom a;
+ char *buf;
+ int len, s;
+
+ if (scr < 0) return;
+
+ w = XCreateSimpleWindow(
+ dpy, RootWindow(dpy, 0),
+ 0, 0, 1, 1, 0, None, None);
+
+ Xutf8SetWMProperties(
+ dpy, w, "xcompmgr", "xcompmgr",
+ NULL, 0, NULL, NULL, NULL);
+
+ len = strlen(REGISTER_PROP) + 2;
+ s = scr;
+
+ while (s >= 10) {
+ ++len;
+ s /= 10;
+ }
+
+ buf = malloc(len);
+ snprintf(buf, len, REGISTER_PROP"%d", scr);
+
+ a = XInternAtom(dpy, buf, False);
+ free(buf);
+
+ XSetSelectionOwner(dpy, a, w, 0);
+}
+
+static void
+fork_after() {
+ if (getppid() == 1) return;
+
+ int pid = fork();
+
+ if (pid == -1) {
+ fprintf(stderr, "Fork failed\n");
+ return;
+ }
+
+ if (pid > 0) _exit(0);
+
+ setsid();
+
+ freopen("/dev/null", "r", stdin);
+ freopen("/dev/null", "w", stdout);
+ freopen("/dev/null", "w", stderr);
+}
+
+static void
+get_atoms() {
+ extents_atom = XInternAtom(dpy,
+ "_NET_FRAME_EXTENTS", False);
+ opacity_atom = XInternAtom(dpy,
+ "_NET_WM_WINDOW_OPACITY", False);
+
+ win_type_atom = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE", False);
+ win_type[WINTYPE_UNKNOWN] = 0;
+ win_type[WINTYPE_DESKTOP] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_DESKTOP", False);
+ win_type[WINTYPE_DOCK] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_DOCK", False);
+ win_type[WINTYPE_TOOLBAR] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_TOOLBAR", False);
+ win_type[WINTYPE_MENU] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_MENU", False);
+ win_type[WINTYPE_UTILITY] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_UTILITY", False);
+ win_type[WINTYPE_SPLASH] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_SPLASH", False);
+ win_type[WINTYPE_DIALOG] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_DIALOG", False);
+ win_type[WINTYPE_NORMAL] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_NORMAL", False);
+ win_type[WINTYPE_DROPDOWN_MENU] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_DROPDOWN_MENU", False);
+ win_type[WINTYPE_POPUP_MENU] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_POPUP_MENU", False);
+ win_type[WINTYPE_TOOLTIP] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_TOOLTIP", False);
+ win_type[WINTYPE_NOTIFY] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_NOTIFICATION", False);
+ win_type[WINTYPE_COMBO] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_COMBO", False);
+ win_type[WINTYPE_DND] = XInternAtom(dpy,
+ "_NET_WM_WINDOW_TYPE_DND", False);
+}
+
+int
+main(int argc, char **argv) {
+ XEvent ev;
+ Window root_return, parent_return;
+ Window *children;
+ unsigned int nchildren;
+ int i;
+ XRenderPictureAttributes pa;
+ struct pollfd ufd;
+ int composite_major, composite_minor;
+ char *display = 0;
+ int o;
+ Bool no_dock_shadow = False;
+ Bool no_dnd_shadow = False;
+ Bool fork_after_register = False;
+
+ for (i = 0; i < NUM_WINTYPES; ++i) {
+ win_type_fade[i] = False;
+ win_type_shadow[i] = False;
+ win_type_opacity[i] = 1.0;
+ }
+
+ while ((o = getopt(argc, argv, "D:I:O:d:r:o:m:l:t:i:e:scnfFCaSzGb")) != -1) {
+ switch (o) {
+ case 'd':
+ display = optarg;
+ break;
+ case 'D':
+ fade_delta = atoi(optarg);
+ if (fade_delta < 1) {
+ fade_delta = 10;
+ }
+ break;
+ case 'I':
+ fade_in_step = atof(optarg);
+ if (fade_in_step <= 0) {
+ fade_in_step = 0.01;
+ }
+ break;
+ case 'O':
+ fade_out_step = atof(optarg);
+ if (fade_out_step <= 0) {
+ fade_out_step = 0.01;
+ }
+ break;
+ case 'c':
+ for (i = 0; i < NUM_WINTYPES; ++i) {
+ win_type_shadow[i] = True;
+ }
+ win_type_shadow[WINTYPE_DESKTOP] = False;
+ break;
+ case 'C':
+ no_dock_shadow = True;
+ break;
+ case 'm':
+ win_type_opacity[WINTYPE_DROPDOWN_MENU] = atof(optarg);
+ win_type_opacity[WINTYPE_POPUP_MENU] = atof(optarg);
+ break;
+ case 'f':
+ for (i = 0; i < NUM_WINTYPES; ++i) {
+ win_type_fade[i] = True;
+ }
+ break;
+ case 'F':
+ fade_trans = True;
+ break;
+ case 'S':
+ synchronize = True;
+ break;
+ case 'r':
+ shadow_radius = atoi(optarg);
+ break;
+ case 'o':
+ shadow_opacity = atof(optarg);
+ break;
+ case 'l':
+ shadow_offset_x = atoi(optarg);
+ break;
+ case 't':
+ shadow_offset_y = atoi(optarg);
+ break;
+ case 'i':
+ inactive_opacity = (double)atof(optarg);
+ break;
+ case 'e':
+ frame_opacity = (double)atof(optarg);
+ break;
+ case 'z':
+ clear_shadow = True;
+ break;
+ case 'n':
+ case 'a':
+ case 's':
+ fprintf(stderr, "Warning: "
+ "-n, -a, and -s have been removed.\n");
+ break;
+ case 'G':
+ no_dnd_shadow = True;
+ break;
+ case 'b':
+ fork_after_register = True;
+ break;
+ default:
+ usage();
+ break;
+ }
+ }
+
+ if (no_dock_shadow) {
+ win_type_shadow[WINTYPE_DOCK] = False;
+ }
+
+ if (no_dnd_shadow) {
+ win_type_shadow[WINTYPE_DND] = False;
+ }
+
+ dpy = XOpenDisplay(display);
+ if (!dpy) {
+ fprintf(stderr, "Can't open display\n");
+ exit(1);
+ }
+
+ XSetErrorHandler(error);
+ if (synchronize) {
+ XSynchronize(dpy, 1);
+ }
+
+ scr = DefaultScreen(dpy);
+ root = RootWindow(dpy, scr);
+
+ if (!XRenderQueryExtension(dpy, &render_event, &render_error)) {
+ fprintf(stderr, "No render extension\n");
+ exit(1);
+ }
+
+ if (!XQueryExtension(dpy, COMPOSITE_NAME, &composite_opcode,
+ &composite_event, &composite_error)) {
+ fprintf(stderr, "No composite extension\n");
+ exit(1);
+ }
+
+ XCompositeQueryVersion(dpy, &composite_major, &composite_minor);
+
+#if HAS_NAME_WINDOW_PIXMAP
+ if (composite_major > 0 || composite_minor >= 2) {
+ has_name_pixmap = True;
+ }
+#endif
+
+ if (!XDamageQueryExtension(dpy, &damage_event, &damage_error)) {
+ fprintf(stderr, "No damage extension\n");
+ exit(1);
+ }
+
+ if (!XFixesQueryExtension(dpy, &xfixes_event, &xfixes_error)) {
+ fprintf(stderr, "No XFixes extension\n");
+ exit(1);
+ }
+
+ register_cm(scr);
+
+ if (fork_after_register) fork_after();
+
+ get_atoms();
+
+ pa.subwindow_mode = IncludeInferiors;
+
+ gaussian_map = make_gaussian_map(dpy, shadow_radius);
+ presum_gaussian(gaussian_map);
+
+ root_width = DisplayWidth(dpy, scr);
+ root_height = DisplayHeight(dpy, scr);
+
+ root_picture = XRenderCreatePicture(dpy, root,
+ XRenderFindVisualFormat(dpy, DefaultVisual(dpy, scr)),
+ CPSubwindowMode, &pa);
+
+ black_picture = solid_picture(dpy, True, 1, 0, 0, 0);
+
+ all_damage = None;
+ clip_changed = True;
+ XGrabServer(dpy);
+
+ XCompositeRedirectSubwindows(
+ dpy, root, CompositeRedirectManual);
+
+ XSelectInput(dpy, root,
+ SubstructureNotifyMask
+ | ExposureMask
+ | StructureNotifyMask
+ | PropertyChangeMask);
+
+ XQueryTree(dpy, root, &root_return,
+ &parent_return, &children, &nchildren);
+
+ for (i = 0; i < nchildren; i++) {
+ add_win(dpy, children[i], i ? children[i-1] : None, False);
+ }
+
+ XFree(children);
+
+ XUngrabServer(dpy);
+
+ ufd.fd = ConnectionNumber(dpy);
+ ufd.events = POLLIN;
+
+ paint_all(dpy, None);
+
+ for (;;) {
+ do {
+ if (!QLength(dpy)) {
+ if (poll(&ufd, 1, fade_timeout()) == 0) {
+ run_fades(dpy);
+ break;
+ }
+ }
+
+ XNextEvent(dpy, &ev);
+ ev_handle((XEvent *)&ev);
+ } while (QLength(dpy));
+
+ if (all_damage) {
+ static int paint;
+ paint_all(dpy, all_damage);
+ paint++;
+ XSync(dpy, False);
+ all_damage = None;
+ clip_changed = False;
+ }
+ }
+}
diff --git a/compton.h b/compton.h
new file mode 100644
index 000000000..18e385989
--- /dev/null
+++ b/compton.h
@@ -0,0 +1,355 @@
+/**
+ * compton.h
+ */
+
+// Throw everything in here.
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+#include <sys/poll.h>
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xatom.h>
+#include <X11/extensions/Xcomposite.h>
+#include <X11/extensions/Xdamage.h>
+#include <X11/extensions/Xrender.h>
+
+#if COMPOSITE_MAJOR > 0 || COMPOSITE_MINOR >= 2
+#define HAS_NAME_WINDOW_PIXMAP 1
+#endif
+
+#define CAN_DO_USABLE 0
+#define DEBUG_REPAINT 0
+#define DEBUG_EVENTS 0
+#define DEBUG_WINTYPE 0
+#define MONITOR_REPAINT 0
+
+#define OPAQUE 0xffffffff
+#define REGISTER_PROP "_NET_WM_CM_S"
+
+#define WINDOW_SOLID 0
+#define WINDOW_TRANS 1
+#define WINDOW_ARGB 2
+
+/**
+ * Types
+ */
+
+typedef enum {
+ WINTYPE_UNKNOWN,
+ WINTYPE_DESKTOP,
+ WINTYPE_DOCK,
+ WINTYPE_TOOLBAR,
+ WINTYPE_MENU,
+ WINTYPE_UTILITY,
+ WINTYPE_SPLASH,
+ WINTYPE_DIALOG,
+ WINTYPE_NORMAL,
+ WINTYPE_DROPDOWN_MENU,
+ WINTYPE_POPUP_MENU,
+ WINTYPE_TOOLTIP,
+ WINTYPE_NOTIFY,
+ WINTYPE_COMBO,
+ WINTYPE_DND,
+ NUM_WINTYPES
+} wintype;
+
+typedef struct _ignore {
+ struct _ignore *next;
+ unsigned long sequence;
+} ignore;
+
+typedef struct _win {
+ struct _win *next;
+ Window id;
+ Window client_win;
+#if HAS_NAME_WINDOW_PIXMAP
+ Pixmap pixmap;
+#endif
+ XWindowAttributes a;
+#if CAN_DO_USABLE
+ Bool usable; /* mapped and all damaged at one point */
+ XRectangle damage_bounds; /* bounds of damage */
+#endif
+ int mode;
+ int damaged;
+ Damage damage;
+ Picture picture;
+ Picture alpha_pict;
+ Picture alpha_border_pict;
+ Picture shadow_pict;
+ XserverRegion border_size;
+ XserverRegion extents;
+ Picture shadow;
+ int shadow_dx;
+ int shadow_dy;
+ int shadow_width;
+ int shadow_height;
+ unsigned int opacity;
+ wintype window_type;
+ unsigned long damage_sequence; /* sequence when damage was created */
+ Bool destroyed;
+ unsigned int left_width;
+ unsigned int right_width;
+ unsigned int top_width;
+ unsigned int bottom_width;
+
+ Bool need_configure;
+ XConfigureEvent queue_configure;
+
+ /* for drawing translucent windows */
+ XserverRegion border_clip;
+ struct _win *prev_trans;
+} win;
+
+typedef struct _conv {
+ int size;
+ double *data;
+} conv;
+
+typedef struct _fade {
+ struct _fade *next;
+ win *w;
+ double cur;
+ double finish;
+ double step;
+ void (*callback) (Display *dpy, win *w);
+ Display *dpy;
+} fade;
+
+/**
+ * Functions
+ */
+
+static int
+get_time_in_milliseconds();
+
+static fade *
+find_fade(win *w);
+
+static void
+dequeue_fade(Display *dpy, fade *f);
+
+static void
+cleanup_fade(Display *dpy, win *w);
+
+static void
+enqueue_fade(Display *dpy, fade *f);
+
+static void
+set_fade(Display *dpy, win *w, double start,
+ double finish, double step,
+ void(*callback) (Display *dpy, win *w),
+ Bool exec_callback, Bool override);
+
+static int
+fade_timeout(void);
+
+static void
+run_fades(Display *dpy);
+
+static double
+gaussian(double r, double x, double y);
+
+static conv *
+make_gaussian_map(Display *dpy, double r);
+
+static unsigned char
+sum_gaussian(conv *map, double opacity,
+ int x, int y, int width, int height);
+
+static void
+presum_gaussian(conv *map);
+
+static XImage *
+make_shadow(Display *dpy, double opacity,
+ int width, int height);
+
+static Picture
+shadow_picture(Display *dpy, double opacity, Picture alpha_pict,
+ int width, int height, int *wp, int *hp);
+
+static Picture
+solid_picture(Display *dpy, Bool argb, double a,
+ double r, double g, double b);
+
+static void
+discard_ignore(Display *dpy, unsigned long sequence);
+
+static void
+set_ignore(Display *dpy, unsigned long sequence);
+
+static int
+should_ignore(Display *dpy, unsigned long sequence);
+
+static win *
+find_win(Display *dpy, Window id);
+
+static win *
+find_toplevel(Display *dpy, Window id);
+
+static Picture
+root_tile_f(Display *dpy);
+
+static void
+paint_root(Display *dpy);
+
+static XserverRegion
+win_extents(Display *dpy, win *w);
+
+static XserverRegion
+border_size(Display *dpy, win *w);
+
+static Window
+find_client_win(Display *dpy, Window win);
+
+static void
+get_frame_extents(Display *dpy, Window w,
+ unsigned int *left,
+ unsigned int *right,
+ unsigned int *top,
+ unsigned int *bottom);
+
+static void
+paint_all(Display *dpy, XserverRegion region);
+
+static void
+add_damage(Display *dpy, XserverRegion damage);
+
+static void
+repair_win(Display *dpy, win *w);
+
+static wintype
+get_wintype_prop(Display * dpy, Window w);
+
+static wintype
+determine_wintype(Display *dpy, Window w, Window top);
+
+static void
+map_win(Display *dpy, Window id,
+ unsigned long sequence, Bool fade,
+ Bool override_redirect);
+
+static void
+finish_unmap_win(Display *dpy, win *w);
+
+#if HAS_NAME_WINDOW_PIXMAP
+static void
+unmap_callback(Display *dpy, win *w);
+#endif
+
+static void
+unmap_win(Display *dpy, Window id, Bool fade);
+
+static unsigned int
+get_opacity_prop(Display *dpy, win *w, unsigned int def);
+
+static double
+get_opacity_percent(Display *dpy, win *w);
+
+static void
+determine_mode(Display *dpy, win *w);
+
+static void
+set_opacity(Display *dpy, win *w, unsigned long opacity);
+
+static void
+add_win(Display *dpy, Window id, Window prev, Bool override_redirect);
+
+static void
+restack_win(Display *dpy, win *w, Window new_above);
+
+static void
+configure_win(Display *dpy, XConfigureEvent *ce);
+
+static void
+circulate_win(Display *dpy, XCirculateEvent *ce);
+
+static void
+finish_destroy_win(Display *dpy, Window id);
+
+#if HAS_NAME_WINDOW_PIXMAP
+static void
+destroy_callback(Display *dpy, win *w);
+#endif
+
+static void
+destroy_win(Display *dpy, Window id, Bool fade);
+
+static void
+damage_win(Display *dpy, XDamageNotifyEvent *de);
+
+static int
+error(Display *dpy, XErrorEvent *ev);
+
+static void
+expose_root(Display *dpy, Window root, XRectangle *rects, int nrects);
+
+#if DEBUG_EVENTS
+static int
+ev_serial(XEvent *ev);
+
+static char *
+ev_name(XEvent *ev);
+
+static Window
+ev_window(XEvent *ev);
+#endif
+
+static void
+usage();
+
+static void
+register_cm(int scr);
+
+inline static void
+ev_focus_in(XFocusChangeEvent *ev);
+
+inline static void
+ev_focus_out(XFocusChangeEvent *ev);
+
+inline static void
+ev_create_notify(XCreateWindowEvent *ev);
+
+inline static void
+ev_configure_notify(XConfigureEvent *ev);
+
+inline static void
+ev_destroy_notify(XDestroyWindowEvent *ev);
+
+inline static void
+ev_map_notify(XMapEvent *ev);
+
+inline static void
+ev_unmap_notify(XUnmapEvent *ev);
+
+inline static void
+ev_reparent_notify(XReparentEvent *ev);
+
+inline static void
+ev_circulate_notify(XCirculateEvent *ev);
+
+inline static void
+ev_expose(XExposeEvent *ev);
+
+inline static void
+ev_property_notify(XPropertyEvent *ev);
+
+inline static void
+ev_damage_notify(XDamageNotifyEvent *ev);
+
+inline static void
+ev_handle(XEvent *ev);
+
+static void
+fork_after();
+
+static void
+get_atoms();
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-21 04:47:49 +0000