static EGLBoolean dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy, _EGLDisplay *disp) { xcb_screen_iterator_t s; xcb_depth_iterator_t d; xcb_visualtype_t *visuals; int i, j, id; EGLint surface_type; EGLint config_attrs[] = { EGL_NATIVE_VISUAL_ID, 0, EGL_NATIVE_VISUAL_TYPE, 0, EGL_NONE }; s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); d = xcb_screen_allowed_depths_iterator(s.data); id = 1; surface_type = EGL_WINDOW_BIT | EGL_PIXMAP_BIT | EGL_PBUFFER_BIT | EGL_SWAP_BEHAVIOR_PRESERVED_BIT; while (d.rem > 0) { EGLBoolean class_added[6] = { 0, }; visuals = xcb_depth_visuals(d.data); for (i = 0; i < xcb_depth_visuals_length(d.data); i++) { if (class_added[visuals[i]._class]) continue; class_added[visuals[i]._class] = EGL_TRUE; for (j = 0; dri2_dpy->driver_configs[j]; j++) { config_attrs[1] = visuals[i].visual_id; config_attrs[3] = visuals[i]._class; dri2_add_config(disp, dri2_dpy->driver_configs[j], id++, d.data->depth, surface_type, config_attrs, NULL); } } xcb_depth_next(&d); } if (!_eglGetArraySize(disp->Configs)) { _eglLog(_EGL_WARNING, "DRI2: failed to create any config"); return EGL_FALSE; } return EGL_TRUE; }
void GlxBackend::initVisualDepthHashTable() { const xcb_setup_t *setup = xcb_get_setup(connection()); for (auto screen = xcb_setup_roots_iterator(setup); screen.rem; xcb_screen_next(&screen)) { for (auto depth = xcb_screen_allowed_depths_iterator(screen.data); depth.rem; xcb_depth_next(&depth)) { const int len = xcb_depth_visuals_length(depth.data); const xcb_visualtype_t *visuals = xcb_depth_visuals(depth.data); for (int i = 0; i < len; i++) m_visualDepthHash.insert(visuals[i].visual_id, depth.data->depth); } } }
static EGLBoolean dri2_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy, _EGLDisplay *disp) { xcb_screen_iterator_t s; xcb_depth_iterator_t d; xcb_visualtype_t *visuals; int i, j, id; unsigned int rgba_masks[4]; EGLint surface_type; EGLint config_attrs[] = { EGL_NATIVE_VISUAL_ID, 0, EGL_NATIVE_VISUAL_TYPE, 0, EGL_NONE }; s = xcb_setup_roots_iterator(xcb_get_setup(dri2_dpy->conn)); d = xcb_screen_allowed_depths_iterator(s.data); id = 1; surface_type = EGL_WINDOW_BIT | EGL_PIXMAP_BIT | EGL_PBUFFER_BIT | EGL_SWAP_BEHAVIOR_PRESERVED_BIT; while (d.rem > 0) { EGLBoolean class_added[6] = { 0, }; visuals = xcb_depth_visuals(d.data); for (i = 0; i < xcb_depth_visuals_length(d.data); i++) { if (class_added[visuals[i]._class]) continue; class_added[visuals[i]._class] = EGL_TRUE; for (j = 0; dri2_dpy->driver_configs[j]; j++) { config_attrs[1] = visuals[i].visual_id; config_attrs[3] = visuals[i]._class; rgba_masks[0] = visuals[i].red_mask; rgba_masks[1] = visuals[i].green_mask; rgba_masks[2] = visuals[i].blue_mask; rgba_masks[3] = 0; dri2_add_config(disp, dri2_dpy->driver_configs[j], id++, surface_type, config_attrs, rgba_masks); /* Allow a 24-bit RGB visual to match a 32-bit RGBA EGLConfig. * Otherwise it will only match a 32-bit RGBA visual. On a * composited window manager on X11, this will make all of the * EGLConfigs with destination alpha get blended by the * compositor. This is probably not what the application * wants... especially on drivers that only have 32-bit RGBA * EGLConfigs! */ if (d.data->depth == 24) { rgba_masks[3] = ~(rgba_masks[0] | rgba_masks[1] | rgba_masks[2]); dri2_add_config(disp, dri2_dpy->driver_configs[j], id++, surface_type, config_attrs, rgba_masks); } } } xcb_depth_next(&d); } if (!_eglGetArraySize(disp->Configs)) { _eglLog(_EGL_WARNING, "DRI2: failed to create any config"); return EGL_FALSE; } return EGL_TRUE; }
/** * Probe the X server. */ static int Open (vlc_object_t *obj) { vout_display_t *vd = (vout_display_t *)obj; vout_display_sys_t *sys = malloc (sizeof (*sys)); if (unlikely(sys == NULL)) return VLC_ENOMEM; vd->sys = sys; sys->pool = NULL; /* Get window, connect to X server */ xcb_connection_t *conn; const xcb_screen_t *scr; uint16_t width, height; sys->embed = XCB_parent_Create (vd, &conn, &scr, &width, &height); if (sys->embed == NULL) { free (sys); return VLC_EGENERIC; } sys->conn = conn; const xcb_setup_t *setup = xcb_get_setup (conn); /* Determine our pixel format */ video_format_t fmt_pic; xcb_visualid_t vid; sys->depth = 0; for (const xcb_format_t *fmt = xcb_setup_pixmap_formats (setup), *end = fmt + xcb_setup_pixmap_formats_length (setup); fmt < end; fmt++) { if (fmt->depth <= sys->depth) continue; /* no better than earlier format */ fmt_pic = vd->fmt; /* Check that the pixmap format is supported by VLC. */ switch (fmt->depth) { case 32: if (fmt->bits_per_pixel != 32) continue; fmt_pic.i_chroma = VLC_CODEC_ARGB; break; case 24: if (fmt->bits_per_pixel == 32) fmt_pic.i_chroma = VLC_CODEC_RGB32; else if (fmt->bits_per_pixel == 24) fmt_pic.i_chroma = VLC_CODEC_RGB24; else continue; break; case 16: if (fmt->bits_per_pixel != 16) continue; fmt_pic.i_chroma = VLC_CODEC_RGB16; break; case 15: if (fmt->bits_per_pixel != 16) continue; fmt_pic.i_chroma = VLC_CODEC_RGB15; break; case 8: if (fmt->bits_per_pixel != 8) continue; fmt_pic.i_chroma = VLC_CODEC_RGB8; break; default: continue; } /* Byte sex is a non-issue for 8-bits. It can be worked around with * RGB masks for 24-bits. Too bad for 15-bits and 16-bits. */ if (fmt->bits_per_pixel == 16 && setup->image_byte_order != ORDER) continue; /* Make sure the X server is sane */ assert (fmt->bits_per_pixel > 0); if (unlikely(fmt->scanline_pad % fmt->bits_per_pixel)) continue; /* Check that the selected screen supports this depth */ const xcb_depth_t *d = FindDepth (scr, fmt->depth); if (d == NULL) continue; /* Find a visual type for the selected depth */ const xcb_visualtype_t *vt = xcb_depth_visuals (d); /* First try True Color class */ for (int i = xcb_depth_visuals_length (d); i > 0; i--) { if (vt->_class == XCB_VISUAL_CLASS_TRUE_COLOR) { fmt_pic.i_rmask = vt->red_mask; fmt_pic.i_gmask = vt->green_mask; fmt_pic.i_bmask = vt->blue_mask; found_visual: vid = vt->visual_id; msg_Dbg (vd, "using X11 visual ID 0x%"PRIx32, vid); sys->depth = fmt->depth; msg_Dbg (vd, " %"PRIu8" bits depth", sys->depth); msg_Dbg (vd, " %"PRIu8" bits per pixel", fmt->bits_per_pixel); msg_Dbg (vd, " %"PRIu8" bits line pad", fmt->scanline_pad); goto found_format; } vt++; } /* Then try Static Gray class */ if (fmt->depth != 8) continue; vt = xcb_depth_visuals (d); for (int i = xcb_depth_visuals_length (d); i > 0 && !vid; i--) { if (vt->_class == XCB_VISUAL_CLASS_STATIC_GRAY) { fmt_pic.i_chroma = VLC_CODEC_GREY; goto found_visual; } vt++; } } msg_Err (obj, "no supported pixel format & visual"); goto error; found_format:; /* Create colormap (needed to select non-default visual) */ xcb_colormap_t cmap; if (vid != scr->root_visual) { cmap = xcb_generate_id (conn); xcb_create_colormap (conn, XCB_COLORMAP_ALLOC_NONE, cmap, scr->root, vid); } else cmap = scr->default_colormap; /* Create window */ sys->window = xcb_generate_id (conn); sys->gc = xcb_generate_id (conn); xcb_pixmap_t pixmap = xcb_generate_id (conn); { const uint32_t mask = XCB_CW_BACK_PIXMAP | XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXMAP | XCB_CW_BORDER_PIXEL | XCB_CW_EVENT_MASK | XCB_CW_COLORMAP; const uint32_t values[] = { /* XCB_CW_BACK_PIXMAP */ pixmap, /* XCB_CW_BACK_PIXEL */ scr->black_pixel, /* XCB_CW_BORDER_PIXMAP */ pixmap, /* XCB_CW_BORDER_PIXEL */ scr->black_pixel, /* XCB_CW_EVENT_MASK */ XCB_EVENT_MASK_VISIBILITY_CHANGE, /* XCB_CW_COLORMAP */ cmap, }; xcb_void_cookie_t c; xcb_create_pixmap (conn, sys->depth, pixmap, scr->root, 1, 1); c = xcb_create_window_checked (conn, sys->depth, sys->window, sys->embed->handle.xid, 0, 0, width, height, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT, vid, mask, values); xcb_map_window (conn, sys->window); /* Create graphic context (I wonder why the heck do we need this) */ xcb_create_gc (conn, sys->gc, sys->window, 0, NULL); if (XCB_error_Check (vd, conn, "cannot create X11 window", c)) goto error; } msg_Dbg (vd, "using X11 window %08"PRIx32, sys->window); msg_Dbg (vd, "using X11 graphic context %08"PRIx32, sys->gc); sys->cursor = XCB_cursor_Create (conn, scr); sys->visible = false; if (XCB_shm_Check (obj, conn)) { sys->seg_base = xcb_generate_id (conn); for (unsigned i = 1; i < MAX_PICTURES; i++) xcb_generate_id (conn); } else sys->seg_base = 0; /* Setup vout_display_t once everything is fine */ vd->info.has_pictures_invalid = true; vd->info.has_event_thread = true; vd->fmt = fmt_pic; vd->pool = Pool; vd->prepare = NULL; vd->display = Display; vd->control = Control; vd->manage = Manage; /* */ bool is_fullscreen = vd->cfg->is_fullscreen; if (is_fullscreen && vout_window_SetFullScreen (sys->embed, true)) is_fullscreen = false; vout_display_SendEventFullscreen (vd, is_fullscreen); vout_display_SendEventDisplaySize (vd, width, height, is_fullscreen); return VLC_SUCCESS; error: Close (obj); return VLC_EGENERIC; }
static EGLBoolean dri2_x11_add_configs_for_visuals(struct dri2_egl_display *dri2_dpy, _EGLDisplay *disp, bool supports_preserved) { xcb_depth_iterator_t d; xcb_visualtype_t *visuals; int config_count = 0; EGLint surface_type; d = xcb_screen_allowed_depths_iterator(dri2_dpy->screen); surface_type = EGL_WINDOW_BIT | EGL_PIXMAP_BIT | EGL_PBUFFER_BIT; if (supports_preserved) surface_type |= EGL_SWAP_BEHAVIOR_PRESERVED_BIT; while (d.rem > 0) { EGLBoolean class_added[6] = { 0, }; visuals = xcb_depth_visuals(d.data); for (int i = 0; i < xcb_depth_visuals_length(d.data); i++) { if (class_added[visuals[i]._class]) continue; class_added[visuals[i]._class] = EGL_TRUE; for (int j = 0; dri2_dpy->driver_configs[j]; j++) { struct dri2_egl_config *dri2_conf; const __DRIconfig *config = dri2_dpy->driver_configs[j]; const EGLint config_attrs[] = { EGL_NATIVE_VISUAL_ID, visuals[i].visual_id, EGL_NATIVE_VISUAL_TYPE, visuals[i]._class, EGL_NONE }; unsigned int rgba_masks[4] = { visuals[i].red_mask, visuals[i].green_mask, visuals[i].blue_mask, 0, }; dri2_conf = dri2_add_config(disp, config, config_count + 1, surface_type, config_attrs, rgba_masks); if (dri2_conf) if (dri2_conf->base.ConfigID == config_count + 1) config_count++; /* Allow a 24-bit RGB visual to match a 32-bit RGBA EGLConfig. * Ditto for 30-bit RGB visuals to match a 32-bit RGBA EGLConfig. * Otherwise it will only match a 32-bit RGBA visual. On a * composited window manager on X11, this will make all of the * EGLConfigs with destination alpha get blended by the * compositor. This is probably not what the application * wants... especially on drivers that only have 32-bit RGBA * EGLConfigs! */ if (d.data->depth == 24 || d.data->depth == 30) { rgba_masks[3] = ~(rgba_masks[0] | rgba_masks[1] | rgba_masks[2]); dri2_conf = dri2_add_config(disp, config, config_count + 1, surface_type, config_attrs, rgba_masks); if (dri2_conf) if (dri2_conf->base.ConfigID == config_count + 1) config_count++; } } } xcb_depth_next(&d); } /* Add a 565-no-depth-no-stencil pbuffer-only config. If X11 is depth 24, * we wouldn't have 565 available, which the CTS demands. */ for (int j = 0; dri2_dpy->driver_configs[j]; j++) { const __DRIconfig *config = dri2_dpy->driver_configs[j]; const EGLint config_attrs[] = { EGL_NATIVE_VISUAL_ID, 0, EGL_NATIVE_VISUAL_TYPE, EGL_NONE, EGL_NONE }; EGLint surface_type = EGL_PBUFFER_BIT; unsigned int rgba_masks[4] = { 0x1f << 11, 0x3f << 5, 0x1f << 0, 0, }; /* Check that we've found single-sample, no depth, no stencil. */ if (!dri2_x11_config_match_attrib(dri2_dpy, config, __DRI_ATTRIB_DEPTH_SIZE, 0) || !dri2_x11_config_match_attrib(dri2_dpy, config, __DRI_ATTRIB_STENCIL_SIZE, 0) || !dri2_x11_config_match_attrib(dri2_dpy, config, __DRI_ATTRIB_SAMPLES, 0)) { continue; } if (dri2_add_config(disp, config, config_count + 1, surface_type, config_attrs, rgba_masks)) { config_count++; break; } } if (!config_count) { _eglLog(_EGL_WARNING, "DRI2: failed to create any config"); return EGL_FALSE; } return EGL_TRUE; }
/** * Probe the X server. */ static int Open (vlc_object_t *obj) { vout_display_t *vd = (vout_display_t *)obj; vout_display_sys_t *p_sys = malloc (sizeof (*p_sys)); if (p_sys == NULL) return VLC_ENOMEM; vd->sys = p_sys; p_sys->pool = NULL; /* Get window, connect to X server */ const xcb_screen_t *scr; p_sys->embed = GetWindow (vd, &p_sys->conn, &scr, &(uint8_t){ 0 }); if (p_sys->embed == NULL) { free (p_sys); return VLC_EGENERIC; } const xcb_setup_t *setup = xcb_get_setup (p_sys->conn); p_sys->byte_order = setup->image_byte_order; /* Determine our pixel format */ xcb_visualid_t vid = 0; p_sys->depth = 0; for (const xcb_format_t *fmt = xcb_setup_pixmap_formats (setup), *end = fmt + xcb_setup_pixmap_formats_length (setup); fmt < end; fmt++) { if (fmt->depth <= p_sys->depth) continue; /* no better than earlier format */ video_format_t fmt_pic = vd->fmt; /* Check that the pixmap format is supported by VLC. */ switch (fmt->depth) { case 32: if (fmt->bits_per_pixel != 32) continue; #ifdef FIXED_VLC_RGBA_MASK fmt_pic.i_chroma = VLC_CODEC_RGBA; break; #else msg_Dbg (vd, "X11 visual with alpha-channel not supported"); continue; #endif case 24: if (fmt->bits_per_pixel == 32) fmt_pic.i_chroma = VLC_CODEC_RGB32; else if (fmt->bits_per_pixel == 24) fmt_pic.i_chroma = VLC_CODEC_RGB24; else continue; break; case 16: if (fmt->bits_per_pixel != 16) continue; fmt_pic.i_chroma = VLC_CODEC_RGB16; break; case 15: if (fmt->bits_per_pixel != 16) continue; fmt_pic.i_chroma = VLC_CODEC_RGB15; break; case 8: if (fmt->bits_per_pixel != 8) continue; fmt_pic.i_chroma = VLC_CODEC_RGB8; break; default: continue; } /* VLC pads lines to 16 pixels internally */ if ((fmt->bits_per_pixel << 4) % fmt->scanline_pad) continue; /* Byte sex is a non-issue for 8-bits. It can be worked around with * RGB masks for 24-bits. Too bad for 15-bits and 16-bits. */ if (fmt->bits_per_pixel == 16 && setup->image_byte_order != ORDER) continue; /* Check that the selected screen supports this depth */ const xcb_depth_t *d = FindDepth (scr, fmt->depth); if (d == NULL) continue; /* Find a visual type for the selected depth */ const xcb_visualtype_t *vt = xcb_depth_visuals (d); /* First try True Color class */ for (int i = xcb_depth_visuals_length (d); i > 0; i--) { if (vt->_class == XCB_VISUAL_CLASS_TRUE_COLOR) { fmt_pic.i_rmask = vt->red_mask; fmt_pic.i_gmask = vt->green_mask; fmt_pic.i_bmask = vt->blue_mask; goto found_visual; } vt++; } /* Then try Static Gray class */ if (fmt->depth == 8) for (int i = xcb_depth_visuals_length (d); i > 0 && !vid; i--) { if (vt->_class == XCB_VISUAL_CLASS_STATIC_GRAY) goto found_grey; vt++; } continue; /* Fail: unusable pixel format */ found_grey: fmt_pic.i_chroma = VLC_CODEC_GREY; found_visual: p_sys->bpp = fmt->bits_per_pixel; p_sys->pad = fmt->scanline_pad; p_sys->depth = fmt->depth; vd->fmt = fmt_pic; vid = vt->visual_id; } if (!vid) { msg_Err (obj, "no supported pixel format & visual"); goto error; } msg_Dbg (vd, "using X11 visual ID 0x%"PRIx32, vid); msg_Dbg (vd, " %"PRIu8" bits depth", p_sys->depth); msg_Dbg (vd, " %"PRIu8" bits per pixel", p_sys->bpp); msg_Dbg (vd, " %"PRIu8" bits line pad", p_sys->pad); /* Create colormap (needed to select non-default visual) */ xcb_colormap_t cmap; if (vid != scr->root_visual) { cmap = xcb_generate_id (p_sys->conn); xcb_create_colormap (p_sys->conn, XCB_COLORMAP_ALLOC_NONE, cmap, scr->root, vid); } else cmap = scr->default_colormap; /* Create window */ unsigned width, height; if (GetWindowSize (p_sys->embed, p_sys->conn, &width, &height)) goto error; p_sys->window = xcb_generate_id (p_sys->conn); p_sys->gc = xcb_generate_id (p_sys->conn); xcb_pixmap_t pixmap = xcb_generate_id (p_sys->conn); { const uint32_t mask = XCB_CW_BACK_PIXMAP | XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXMAP | XCB_CW_BORDER_PIXEL | XCB_CW_EVENT_MASK | XCB_CW_COLORMAP; const uint32_t values[] = { /* XCB_CW_BACK_PIXMAP */ pixmap, /* XCB_CW_BACK_PIXEL */ scr->black_pixel, /* XCB_CW_BORDER_PIXMAP */ pixmap, /* XCB_CW_BORDER_PIXEL */ scr->black_pixel, /* XCB_CW_EVENT_MASK */ XCB_EVENT_MASK_VISIBILITY_CHANGE, /* XCB_CW_COLORMAP */ cmap, }; xcb_void_cookie_t c; xcb_create_pixmap (p_sys->conn, p_sys->depth, pixmap, scr->root, 1, 1); c = xcb_create_window_checked (p_sys->conn, p_sys->depth, p_sys->window, p_sys->embed->handle.xid, 0, 0, width, height, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT, vid, mask, values); xcb_map_window (p_sys->conn, p_sys->window); /* Create graphic context (I wonder why the heck do we need this) */ xcb_create_gc (p_sys->conn, p_sys->gc, p_sys->window, 0, NULL); if (CheckError (vd, p_sys->conn, "cannot create X11 window", c)) goto error; } msg_Dbg (vd, "using X11 window %08"PRIx32, p_sys->window); msg_Dbg (vd, "using X11 graphic context %08"PRIx32, p_sys->gc); p_sys->cursor = CreateBlankCursor (p_sys->conn, scr); p_sys->visible = false; CheckSHM (obj, p_sys->conn, &p_sys->shm); /* */ vout_display_info_t info = vd->info; info.has_pictures_invalid = true; /* Setup vout_display_t once everything is fine */ vd->info = info; vd->pool = Pool; vd->prepare = NULL; vd->display = Display; vd->control = Control; vd->manage = Manage; /* */ vout_display_SendEventFullscreen (vd, false); vout_display_SendEventDisplaySize (vd, width, height, false); return VLC_SUCCESS; error: Close (obj); return VLC_EGENERIC; }