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;
}
