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handle 1280x1024 (dumb resolution that shouldn't exist)

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"SAR" (mpeg-centric) -> more common "PAR"
This commit is contained in:
Glenn Maynard
2005-11-29 06:12:09 +00:00
parent 7a61e70c9a
commit 8305eea9eb
1 changed files with 15 additions and 5 deletions
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stepmania/src/ScreenDimensions.cpp
+15 -5
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@@ -15,21 +15,31 @@ ThemeMetric<float> THEME_SCREEN_HEIGHT("Common","ScreenHeight");
* The theme resolution isn't necessarily 4:3; a natively widescreen
* theme would have eg. 16:9 or 16:10.
*
* Note that "aspect ratio" here always means DAR; we don't care about the SAR.
* Note that "aspect ratio" here always means DAR (display aspect ratio: the
* aspect ratio of the physical display); we don't care about the PAR (pixel
* aspect ratio: the aspect ratio of a pixel).
*/
#define THEME_NATIVE_ASPECT (THEME_SCREEN_WIDTH/THEME_SCREEN_HEIGHT)
static float GetAspect()
static float ScreenAspectRatio()
{
float fAspect = PREFSMAN->m_fDisplayAspectRatio;
if( fAspect == ASPECT_AUTO )
fAspect = PREFSMAN->m_iDisplayWidth / (float)PREFSMAN->m_iDisplayHeight;
{
/* Most PC monitor resolutions have square pixels (PAR 1:1), so the DAR
* is simply width:height. 1280x1024 is an exception; treat it as 4:3,
* not 5:4. */
if( PREFSMAN->m_iDisplayWidth == 1280 && PREFSMAN->m_iDisplayHeight == 1024 )
fAspect = 4.0f/3.0f;
else
fAspect = PREFSMAN->m_iDisplayWidth / (float)PREFSMAN->m_iDisplayHeight;
}
return fAspect;
}
float ScreenWidth()
{
float fAspect = GetAspect();
float fAspect = ScreenAspectRatio();
float fScale = 1;
if( fAspect > THEME_NATIVE_ASPECT )
fScale = fAspect / THEME_NATIVE_ASPECT;
@@ -39,7 +49,7 @@ float ScreenWidth()
float ScreenHeight()
{
float fAspect = GetAspect();
float fAspect = ScreenAspectRatio();
float fScale = 1;
if( fAspect < THEME_NATIVE_ASPECT )
fScale = THEME_NATIVE_ASPECT / fAspect;