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fix viewport not correctly reset when alt+tabbing out of and back into full-screen opengl

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This commit is contained in:
Chris Danford
2005-11-24 10:40:23 +00:00
parent 92c3de82d6
commit b3c7b9c99d
4 changed files with 41 additions and 7 deletions
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stepmania/src/RageDisplay_OGL.cpp
+12 -4
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@@ -598,6 +598,8 @@ void SetupExtensions()
void RageDisplay_OGL::ResolutionChanged()
{
//LOG->Warn( "RageDisplay_OGL::ResolutionChanged" );
SetViewport(0,0);
/* Clear any junk that's in the framebuffer. */
@@ -610,7 +612,8 @@ void RageDisplay_OGL::ResolutionChanged()
// need to be reloaded.
CString RageDisplay_OGL::TryVideoMode( VideoModeParams p, bool &bNewDeviceOut )
{
// LOG->Trace( "RageDisplay_OGL::SetVideoMode( %d, %d, %d, %d, %d, %d )", windowed, width, height, bpp, rate, vsync );
//LOG->Warn( "RageDisplay_OGL::TryVideoMode( %d, %d, %d, %d, %d, %d )", p.windowed, p.width, p.height, p.bpp, p.rate, p.vsync );
CString err;
err = g_pWind->TryVideoMode( p, bNewDeviceOut );
if( err != "" )
@@ -645,12 +648,17 @@ CString RageDisplay_OGL::TryVideoMode( VideoModeParams p, bool &bNewDeviceOut )
void RageDisplay_OGL::SetViewport(int shift_left, int shift_down)
{
int width = g_pWind->GetActualVideoModeParams().width;
int height = g_pWind->GetActualVideoModeParams().height;
//LOG->Warn( "RageDisplay_OGL::SetViewport( %d, %d )", width, height );
/* left and down are on a 0..SCREEN_WIDTH, 0..SCREEN_HEIGHT scale.
* Scale them to the actual viewport range. */
shift_left = int( shift_left * float(g_pWind->GetActualVideoModeParams().width) / SCREEN_WIDTH );
shift_down = int( shift_down * float(g_pWind->GetActualVideoModeParams().height) / SCREEN_HEIGHT );
shift_left = int( shift_left * float(width) / SCREEN_WIDTH );
shift_down = int( shift_down * float(height) / SCREEN_HEIGHT );
glViewport( shift_left, -shift_down, g_pWind->GetActualVideoModeParams().width, g_pWind->GetActualVideoModeParams().height );
glViewport( shift_left, -shift_down, width, height );
}
int RageDisplay_OGL::GetMaxTextureSize() const