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glimagesink: Upload and draw overlays with GstGLOverlayCompositor

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Receives the GstOverlayComposition buffer in the glimagesink and draws them.

https://bugzilla.gnome.org/show_bug.cgi?id=745107
This commit is contained in:
Lubosz Sarnecki 2015-06-18 06:04:37 +02:00 committed by Tim-Philipp Müller
parent 4d010efea1
commit 1c0ddbd9a8
2 changed files with 19 additions and 0 deletions
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17
ext/gl/gstglimagesink.c
View file

@ -549,6 +549,7 @@ gst_glimage_sink_init (GstGLImageSink * glimage_sink)
glimage_sink->redisplay_texture = 0;
glimage_sink->handle_events = TRUE;
glimage_sink->ignore_alpha = TRUE;
glimage_sink->overlay_compositor = NULL;
glimage_sink->mview_output_mode = DEFAULT_MULTIVIEW_MODE;
glimage_sink->mview_output_flags = DEFAULT_MULTIVIEW_FLAGS;
@ -619,6 +620,8 @@ gst_glimage_sink_finalize (GObject * object)
glimage_sink = GST_GLIMAGE_SINK (object);
gst_object_unref (glimage_sink->overlay_compositor);
g_mutex_clear (&glimage_sink->drawing_lock);
GST_DEBUG ("finalized");
@ -908,6 +911,8 @@ gst_glimage_sink_change_state (GstElement * element, GstStateChange transition)
g_atomic_int_set (&glimage_sink->to_quit, 0);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
glimage_sink->overlay_compositor =
gst_gl_overlay_compositor_new (glimage_sink->context);
break;
default:
break;
@ -1273,6 +1278,12 @@ prepare_next_buffer (GstGLImageSink * glimage_sink)
next_buffer = in_buffer;
info = &glimage_sink->in_info;
}
if (glimage_sink->overlay_compositor)
gst_gl_overlay_compositor_upload_overlays (glimage_sink->overlay_compositor,
next_buffer, glimage_sink->attr_position, glimage_sink->attr_texture,
glimage_sink->window_width, glimage_sink->window_height);
/* in_buffer invalid now */
if (!gst_video_frame_map (&gl_frame, info, next_buffer,
GST_MAP_READ | GST_MAP_GL)) {
@ -1668,6 +1679,8 @@ gst_glimage_sink_cleanup_glthread (GstGLImageSink * gl_sink)
gl->DeleteBuffers (1, &gl_sink->vbo_indices);
gl_sink->vbo_indices = 0;
}
gst_gl_overlay_compositor_free_overlays (gl_sink->overlay_compositor);
}
static void
@ -1835,6 +1848,10 @@ gst_glimage_sink_on_draw (GstGLImageSink * gl_sink)
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
if (gl_sink->overlay_compositor)
gst_gl_overlay_compositor_draw_overlays (gl_sink->overlay_compositor,
gl_sink->redisplay_shader);
gst_gl_context_clear_shader (gl_sink->context);
if (gl->GenVertexArrays)

2
ext/gl/gstglimagesink.h
View file

@ -116,6 +116,8 @@ struct _GstGLImageSink
GstVideoMultiviewFlags mview_output_flags;
gboolean output_mode_changed;
GstGLStereoDownmix mview_downmix_mode;
GstGLOverlayCompositor *overlay_compositor;
};
struct _GstGLImageSinkClass