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stage: Premultiply the stage color

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In case we are using Stage:use-alpha then we need to premultiply the
stage color to get the correct blending from the compositor.
This commit is contained in:
Emmanuele Bassi 2009-12-09 01:46:09 +00:00
parent 6a3f6a460e
commit 3a3c815286
1 changed files with 1 additions and 0 deletions
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clutter/clutter-stage.c
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@ -263,6 +263,7 @@ clutter_stage_paint (ClutterActor *self)
priv->color.blue,
priv->use_alpha ? real_alpha
: 255);
cogl_color_premultiply (&stage_color);
cogl_clear (&stage_color,
COGL_BUFFER_BIT_COLOR |
COGL_BUFFER_BIT_DEPTH);