void gst_wl_window_render (GstWlWindow * window, GstWlBuffer * buffer, const GstVideoInfo * info) { if (G_UNLIKELY (info)) { window->video_width = gst_util_uint64_scale_int_round (info->width, info->par_n, info->par_d); window->video_height = info->height; wl_subsurface_set_sync (window->video_subsurface); gst_wl_window_resize_video_surface (window, FALSE); gst_wl_window_set_opaque (window, info); } if (G_LIKELY (buffer)) gst_wl_buffer_attach (buffer, window->video_surface_wrapper); else wl_surface_attach (window->video_surface_wrapper, NULL, 0, 0); wl_surface_damage (window->video_surface_wrapper, 0, 0, window->video_rectangle.w, window->video_rectangle.h); wl_surface_commit (window->video_surface_wrapper); if (G_UNLIKELY (info)) { /* commit also the parent (area_surface) in order to change * the position of the video_subsurface */ wl_surface_damage (window->area_surface_wrapper, 0, 0, window->render_rectangle.w, window->render_rectangle.h); wl_surface_commit (window->area_surface_wrapper); wl_subsurface_set_desync (window->video_subsurface); } wl_display_flush (window->display->display); }
/* Update the buffer used to draw black borders. When we have viewporter * support, this is a scaled up 1x1 image, and without we need an black image * the size of the rendering areay. */ static void gst_wl_window_update_borders (GstWlWindow * window) { GstVideoFormat format; GstVideoInfo info; gint width, height; GstBuffer *buf; struct wl_buffer *wlbuf; GstWlBuffer *gwlbuf; GstAllocator *alloc; if (window->no_border_update) return; if (window->display->viewporter) { width = height = 1; window->no_border_update = TRUE; } else { width = window->render_rectangle.w; height = window->render_rectangle.h; } /* we want WL_SHM_FORMAT_XRGB8888 */ #if G_BYTE_ORDER == G_BIG_ENDIAN format = GST_VIDEO_FORMAT_xRGB; #else format = GST_VIDEO_FORMAT_BGRx; #endif /* draw the area_subsurface */ gst_video_info_set_format (&info, format, width, height); alloc = gst_wl_shm_allocator_get (); buf = gst_buffer_new_allocate (alloc, info.size, NULL); gst_buffer_memset (buf, 0, 0, info.size); wlbuf = gst_wl_shm_memory_construct_wl_buffer (gst_buffer_peek_memory (buf, 0), window->display, &info); gwlbuf = gst_buffer_add_wl_buffer (buf, wlbuf, window->display); gst_wl_buffer_attach (gwlbuf, window->area_surface_wrapper); /* at this point, the GstWlBuffer keeps the buffer * alive and will free it on wl_buffer::release */ gst_buffer_unref (buf); g_object_unref (alloc); }
static GstWlWindow * gst_wl_window_new_internal (GstWlDisplay * display) { GstWlWindow *window; GstVideoInfo info; GstBuffer *buf; GstMapInfo mapinfo; struct wl_buffer *wlbuf; GstWlBuffer *gwlbuf; struct wl_region *region; window = g_object_new (GST_TYPE_WL_WINDOW, NULL); window->display = g_object_ref (display); window->area_surface = wl_compositor_create_surface (display->compositor); window->video_surface = wl_compositor_create_surface (display->compositor); wl_proxy_set_queue ((struct wl_proxy *) window->area_surface, display->queue); wl_proxy_set_queue ((struct wl_proxy *) window->video_surface, display->queue); /* embed video_surface in area_surface */ window->video_subsurface = wl_subcompositor_get_subsurface (display->subcompositor, window->video_surface, window->area_surface); wl_subsurface_set_desync (window->video_subsurface); window->area_viewport = wl_scaler_get_viewport (display->scaler, window->area_surface); window->video_viewport = wl_scaler_get_viewport (display->scaler, window->video_surface); /* draw the area_subsurface */ gst_video_info_set_format (&info, /* we want WL_SHM_FORMAT_XRGB8888 */ #if G_BYTE_ORDER == G_BIG_ENDIAN GST_VIDEO_FORMAT_xRGB, #else GST_VIDEO_FORMAT_BGRx, #endif 1, 1); buf = gst_buffer_new_allocate (gst_wl_shm_allocator_get (), info.size, NULL); gst_buffer_map (buf, &mapinfo, GST_MAP_WRITE); *((guint32 *) mapinfo.data) = 0; /* paint it black */ gst_buffer_unmap (buf, &mapinfo); wlbuf = gst_wl_shm_memory_construct_wl_buffer (gst_buffer_peek_memory (buf, 0), display, &info); gwlbuf = gst_buffer_add_wl_buffer (buf, wlbuf, display); gst_wl_buffer_attach (gwlbuf, window->area_surface); /* at this point, the GstWlBuffer keeps the buffer * alive and will free it on wl_buffer::release */ gst_buffer_unref (buf); /* do not accept input */ region = wl_compositor_create_region (display->compositor); wl_surface_set_input_region (window->area_surface, region); wl_region_destroy (region); region = wl_compositor_create_region (display->compositor); wl_surface_set_input_region (window->video_surface, region); wl_region_destroy (region); return window; }