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Do not try to paint outside of the screen. 

svn path=/branches/work/kwin_composite/; revision=606822
icc-effect-5.14.5
Luboš Luňák 2006-11-21 22:22:48 +00:00
parent 9c4218d4bf
commit 2c9dd370d9
3 changed files with 10 additions and 4 deletions
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8
scene.cpp
View File

@ -111,8 +111,12 @@ void Scene::paintScreen( int* mask, QRegion* region )
*mask &= ~PAINT_SCREEN_REGION;
*region = infiniteRegion();
}
else if(( *mask & PAINT_SCREEN_REGION ) == 0 )
{ // force region to be full
else if( *mask & PAINT_SCREEN_REGION )
{ // make sure not to go outside visible screen
*region &= QRegion( 0, 0, displayWidth(), displayHeight());
}
else
{ // whole screen, not transformed, force region to be full
*region = QRegion( 0, 0, displayWidth(), displayHeight());
}
ScreenPaintData data;

4
scene_opengl.cpp
View File

@ -467,8 +467,10 @@ void SceneOpenGL::waitSync()
}
// actually paint to the screen (double-buffer swap or copy from pixmap buffer)
void SceneOpenGL::flushBuffer( int mask, const QRegion& damage )
void SceneOpenGL::flushBuffer( int mask, QRegion damage )
{
if( mask & PAINT_SCREEN_REGION )// make sure not to go outside visible screen
damage &= QRegion( 0, 0, displayWidth(), displayHeight());
if( db )
{
if( mask & PAINT_SCREEN_REGION )

2
scene_opengl.h
View File

@ -45,7 +45,7 @@ class SceneOpenGL
void initRenderingContext();
bool findConfig( const int* attrs, GLXFBConfig* config, VisualID visual = None );
void waitSync();
void flushBuffer( int mask, const QRegion& damage );
void flushBuffer( int mask, QRegion damage );
typedef GLuint Texture;
GC gcroot;
Drawable buffer;