Do not try to paint outside of the screen.
svn path=/branches/work/kwin_composite/; revision=606822
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3 changed files with 10 additions and 4 deletions
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@ -111,8 +111,12 @@ void Scene::paintScreen( int* mask, QRegion* region )
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*mask &= ~PAINT_SCREEN_REGION;
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*region = infiniteRegion();
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}
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else if(( *mask & PAINT_SCREEN_REGION ) == 0 )
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{ // force region to be full
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else if( *mask & PAINT_SCREEN_REGION )
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{ // make sure not to go outside visible screen
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*region &= QRegion( 0, 0, displayWidth(), displayHeight());
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}
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else
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{ // whole screen, not transformed, force region to be full
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*region = QRegion( 0, 0, displayWidth(), displayHeight());
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}
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ScreenPaintData data;
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@ -467,8 +467,10 @@ void SceneOpenGL::waitSync()
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}
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// actually paint to the screen (double-buffer swap or copy from pixmap buffer)
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void SceneOpenGL::flushBuffer( int mask, const QRegion& damage )
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void SceneOpenGL::flushBuffer( int mask, QRegion damage )
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{
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if( mask & PAINT_SCREEN_REGION )// make sure not to go outside visible screen
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damage &= QRegion( 0, 0, displayWidth(), displayHeight());
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if( db )
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{
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if( mask & PAINT_SCREEN_REGION )
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@ -45,7 +45,7 @@ class SceneOpenGL
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void initRenderingContext();
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bool findConfig( const int* attrs, GLXFBConfig* config, VisualID visual = None );
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void waitSync();
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void flushBuffer( int mask, const QRegion& damage );
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void flushBuffer( int mask, QRegion damage );
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typedef GLuint Texture;
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GC gcroot;
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Drawable buffer;
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