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caopengllayersink: render black when we don't have a texture to display

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Like when the winsys asks us to redraw before the pipeline has started
This commit is contained in:
Matthew Waters 2015-02-24 23:52:39 +11:00 committed by Tim-Philipp Müller
parent fba2a2093f
commit b09971445e
1 changed files with 2 additions and 0 deletions
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ext/gl/caopengllayersink.m
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@ -983,6 +983,8 @@ gst_ca_opengl_layer_sink_on_draw (GstCAOpenGLLayerSink * ca_sink)
/* check if texture is ready for being drawn */
if (!ca_sink->redisplay_texture) {
gl->ClearColor (0.0f, 0.0f, 0.0f, 1.0f);
gl->Clear (GL_COLOR_BUFFER_BIT);
GST_CA_OPENGL_LAYER_SINK_UNLOCK (ca_sink);
return;
}