/* * 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 (w->client_win) { set_ignore(dpy, NextRequest(dpy)); XSelectInput(dpy, w->client_win, 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" "-d display\n" " Which display should be managed.\n" "-r radius\n" " The blur radius for shadows. (default 12)\n" "-o opacity\n" " The translucency for shadows. (default .75)\n" "-l left-offset\n" " The left offset for shadows. (default -15)\n" "-t top-offset\n" " The top offset for shadows. (default -15)\n" "-I fade-in-step\n" " Opacity change between steps while fading in. (default 0.028)\n" "-O fade-out-step\n" " Opacity change between steps while fading out. (default 0.03)\n" "-D fade-delta-time\n" " The time between steps in a fade in milliseconds. (default 10)\n" "-m opacity\n" " The opacity for menus. (default 1.0)\n" "-c\n" " Enabled client-side shadows on windows.\n" "-C\n" " Avoid drawing shadows on dock/panel windows.\n" "-z\n" " Zero the part of the shadow's mask behind the window (experimental).\n" "-f\n" " Fade windows in/out when opening/closing.\n" "-F\n" " Fade windows during opacity changes.\n" "-i opacity\n" " Opacity of inactive windows. (0.1 - 1.0)\n" "-e opacity\n" " Opacity of window titlebars and borders. (0.1 - 1.0)\n" "-G\n" " Don't draw shadows on DND windows\n" "-b daemonize\n" " Daemonize process.\n" "-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; } } }