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attempt to fix GPGX aspect ratio 

see #4042, not sure if this is fully correct yet
This commit is contained in:
Morilli 2024-09-20 18:26:15 +02:00
parent a3a051346b
commit 5acf324fdf
1 changed files with 12 additions and 0 deletions
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12
src/BizHawk.Emulation.Cores/Consoles/Sega/gpgx64/GPGX.IVideoProvider.cs
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@ -30,6 +30,14 @@ namespace BizHawk.Emulation.Cores.Consoles.Sega.gpgx
var widthHasOverscan = (_syncSettings.Overscan & LibGPGX.InitSettings.OverscanType.Horizontal) != 0;
var heightHasOverscan = (_syncSettings.Overscan & LibGPGX.InitSettings.OverscanType.Vertical) != 0;
var isPal = Region == DisplayType.PAL;
bool isVdpPal = _syncSettings.ForceVDP switch
{
LibGPGX.ForceVDP.NTSC => false,
LibGPGX.ForceVDP.PAL => true,
_ => isPal
};
double videoSampleRate = isVdpPal ? 14750000.0 : 135000000.0 / 11.0;
int clockRate = isPal ? 53203424 : 53693175;
if (SystemId == VSystemID.Raw.GEN)
{
@ -37,6 +45,8 @@ namespace BizHawk.Emulation.Cores.Consoles.Sega.gpgx
VirtualHeight = 224;
VirtualWidth += widthHasOverscan ? 28 : 0;
VirtualHeight += heightHasOverscan ? (isPal ? 48 : 0) + 16 : 0;
VirtualWidth = (int)(VirtualWidth * 4.0 * videoSampleRate / clockRate);
}
else
{
@ -53,6 +63,8 @@ namespace BizHawk.Emulation.Cores.Consoles.Sega.gpgx
VirtualWidth += widthHasOverscan ? 28 : 0;
VirtualHeight += heightHasOverscan ? (isPal ? 96 : 48) : 0;
}
VirtualWidth = (int)(VirtualWidth * 5.0 * videoSampleRate / clockRate);
}
}