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OPENGL: Restrict window scaling if current desktop resolution is not big enough.

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svn-id: r52057
This commit is contained in:
Alejandro Marzini 2010-08-13 05:26:23 +00:00
parent 610f041930
commit 503578ac10
1 changed files with 7 additions and 0 deletions
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7
backends/graphics/openglsdl/openglsdl-graphics.cpp
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@ -433,6 +433,13 @@ bool OpenGLSdlGraphicsManager::handleScalerHotkeys(Common::KeyCode key) {
int factor = _videoMode.scaleFactor;
factor += (sdlKey == SDLK_MINUS || sdlKey == SDLK_KP_MINUS) ? -1 : +1;
if (0 < factor && factor < 4) {
// Check if the desktop resolution has been detected
if (_desktopWidth > 0 && _desktopHeight > 0)
// If the new scale factor is too big, do not scale
if (_videoMode.screenWidth * factor > _desktopWidth ||
_videoMode.screenHeight * factor > _desktopHeight)
return false;
beginGFXTransaction();
setScale(factor);
endGFXTransaction();