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SDL: Fix bug #3025258

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Bug #3025258: "Cursor Leaves Trail in GUI when Screen is Shaking". Based
on patch provided by eriktorbjorn but extended with another edge case.

svn-id: r51212
This commit is contained in:
Eugene Sandulenko 2010-07-23 16:38:31 +00:00
parent 11a17b3908
commit b3f08d183b
1 changed files with 3 additions and 2 deletions
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5
backends/platform/sdl/graphics.cpp
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@ -783,7 +783,8 @@ void OSystem_SDL::internUpdateScreen() {
#endif
// If the shake position changed, fill the dirty area with blackness
if (_currentShakePos != _newShakePos) {
if (_currentShakePos != _newShakePos ||
(_mouseNeedsRedraw && _mouseBackup.y <= _currentShakePos)) {
SDL_Rect blackrect = {0, 0, _videoMode.screenWidth * _videoMode.scaleFactor, _newShakePos * _videoMode.scaleFactor};
if (_videoMode.aspectRatioCorrection && !_overlayVisible)
@ -1681,7 +1682,7 @@ void OSystem_SDL::undrawMouse() {
return;
if (_mouseBackup.w != 0 && _mouseBackup.h != 0)
addDirtyRect(x, y, _mouseBackup.w, _mouseBackup.h);
addDirtyRect(x, y - _currentShakePos, _mouseBackup.w, _mouseBackup.h);
}
void OSystem_SDL::drawMouse() {