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PCRTC: Better handling of CRTC height saturation

This commit is contained in:
Akash 2016-01-10 14:17:04 +05:30
parent dd097fe361
commit aade5278d8
1 changed files with 11 additions and 5 deletions
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16
plugins/GSdx/GSState.cpp
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@ -379,12 +379,15 @@ GSVector4i GSState::GetFrameRect(int i)
int w = r.width();
int h = r.height();
if (m_regs->SMODE1.CMOD == 2 && h > 448) // NTSC: limit games to 448, higher value causes black borders on few games
{
h = 448;
}
// NTSC: Saturate higher height values for games which have CRTC width lower than 640.
// Some NTSC mode games request higher height values for accurate display size / position when width is 640
// Testcases : PS logo (640x512) , Resident Evil:CVX (640x480). potentially more test cases...
if (m_regs->SMODE2.INT && m_regs->SMODE2.FFMD && h > 1) h >>= 1;
if (m_regs->SMODE1.CMOD == 2 && h > 448 && w < 640)
h = 448;
if (m_regs->SMODE2.INT && m_regs->SMODE2.FFMD && h > 1)
h >>= 1;
//watch Disgaea2 FMV borders when changing
r.left = m_regs->DISP[i].DISPFB.DBX;
@ -462,6 +465,9 @@ bool GSState::IsEnabled(int i)
float GSState::GetTvRefreshRate()
{
// TODO: Frequencies for VESA / DTV : http://users.neoscientists.org/~blue/ps2videomodes.txt
// SMODE1 PLL Loop divider (LC) could be used for detection of other video modes. CMOD's only useful for NTSC/PAL.(2/3)
return (m_regs->SMODE1.CMOD & 1) ? 50 : (60/1.001f);
}