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libretro: fix blargg par

This commit is contained in:
trinemark 2019-04-27 21:52:23 -05:00 committed by Stephen Anthony
parent 007795af8d
commit 503501a951
1 changed files with 30 additions and 10 deletions
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40
src/libretro/StellaLIBRETRO.cxx
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@ -257,19 +257,39 @@ float StellaLIBRETRO::getVideoAspectPar()
if (getVideoNTSC())
{
if (!video_aspect_ntsc)
// non-interlace square pixel clock -- 1.0 pixel @ color burst -- double-width pixels
par = (6.1363635f / 3.579545454f) / 2.0;
else
par = video_aspect_ntsc / 100.0;
if (!video_aspect_ntsc)
{
if (!video_filter)
{
// non-interlace square pixel clock -- 1.0 pixel @ color burst -- double-width pixels
par = (6.1363635f / 3.579545454f) / 2.0;
}
else
{
// blargg filter
par = 1.0;
}
}
else
par = video_aspect_ntsc / 100.0;
}
else
{
if (!video_aspect_pal)
// non-interlace square pixel clock -- 0.8 pixel @ color burst -- double-width pixels
par = (7.3750000f / (4.43361875f * 4.0f / 5.0f)) / 2.0f;
else
par = video_aspect_pal / 100.0;
if (!video_aspect_pal)
{
if (!video_filter)
{
// non-interlace square pixel clock -- 0.8 pixel @ color burst -- double-width pixels
par = (7.3750000f / (4.43361875f * 4.0f / 5.0f)) / 2.0f;
}
else
{
// blargg filter
par = 1.0;
}
}
else
par = video_aspect_pal / 100.0;
}
return par;