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Use paletized textures on systems that support them 

Not many systems support paletized textures, so for the majority this
commit doesn't add anythings but a confirmation. But for those that do,
this avoids an unneeded conversion.
This commit is contained in:
PatrickvL 2017-07-19 15:05:41 +01:00
parent d7e1f628b4
commit 25fc00ba6d
1 changed files with 9 additions and 5 deletions
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14
src/CxbxKrnl/EmuD3D8.cpp
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@ -90,6 +90,7 @@ static void EmuAdjustPower2(UINT *dwWidth, UINT *dwHeigh
// Static Variable(s)
static HMONITOR g_hMonitor = NULL; // Handle to DirectDraw monitor
static BOOL g_bSupportsYUY2 = FALSE;// Does device support YUY2 overlays?
static BOOL g_bSupportsP8 = FALSE;// Does device support palette textures?
static XTL::LPDIRECTDRAW7 g_pDD7 = NULL; // DirectDraw7
static XTL::DDCAPS g_DriverCaps = { 0 };
static DWORD g_dwOverlayW = 640; // Cached Overlay Width
@ -1649,6 +1650,9 @@ static DWORD WINAPI EmuCreateDeviceProxy(LPVOID)
g_dwVertexShaderUsage = D3DUSAGE_SOFTWAREPROCESSING;
}
// Does this device support paletized textures?
g_bSupportsP8 = g_D3DCaps.RasterCaps & RC_PALETTE;
// Dxbx addition : Prevent Direct3D from changing the FPU Control word :
g_EmuCDPD.BehaviorFlags |= D3DCREATE_FPU_PRESERVE;
@ -3782,7 +3786,7 @@ HRESULT WINAPI XTL::EMUPATCH(D3DDevice_CreateTexture)
PCFormat = D3DFMT_R5G6B5;
}
//*
else if(PCFormat == D3DFMT_P8)
else if(PCFormat == D3DFMT_P8 && !g_bSupportsP8)
{
EmuWarning("D3DFMT_P8 is an unsupported texture format!");
PCFormat = D3DFMT_L8;
@ -3933,7 +3937,7 @@ HRESULT WINAPI XTL::EMUPATCH(D3DDevice_CreateVolumeTexture)
EmuWarning("D3DFMT_D16 is an unsupported texture format!");
PCFormat = D3DFMT_X8R8G8B8; // TODO : Use D3DFMT_R5G6B5 ?
}
else if (PCFormat == D3DFMT_P8)
else if (PCFormat == D3DFMT_P8 && !g_bSupportsP8)
{
EmuWarning("D3DFMT_P8 is an unsupported texture format!");
PCFormat = D3DFMT_L8;
@ -4004,7 +4008,7 @@ HRESULT WINAPI XTL::EMUPATCH(D3DDevice_CreateCubeTexture)
EmuWarning("D3DFMT_D16 is an unsupported texture format!");
PCFormat = D3DFMT_X8R8G8B8; // TODO : Use D3DFMT_R5G6B5?
}
else if(PCFormat == D3DFMT_P8)
else if(PCFormat == D3DFMT_P8 && !g_bSupportsP8)
{
EmuWarning("D3DFMT_P8 is an unsupported texture format!");
PCFormat = D3DFMT_L8;
@ -5220,7 +5224,7 @@ HRESULT WINAPI XTL::EMUPATCH(D3DResource_Register)
// Since most modern graphics cards does not support
// palette based textures we need to expand it to
// ARGB texture format
if (PCFormat == D3DFMT_P8 || EmuXBFormatRequiresConversionToARGB(X_Format))
if ((PCFormat == D3DFMT_P8 && !g_bSupportsP8) || EmuXBFormatRequiresConversionToARGB(X_Format))
{
if (PCFormat == D3DFMT_P8) //Palette
EmuWarning("D3DFMT_P8 -> D3DFMT_A8R8G8B8");
@ -8911,7 +8915,7 @@ HRESULT WINAPI XTL::EMUPATCH(Direct3D_CheckDeviceMultiSampleType)
EmuWarning("D3DFMT_D16 is an unsupported texture format!");
PCSurfaceFormat = D3DFMT_X8R8G8B8;
}
else if(PCSurfaceFormat == D3DFMT_P8)
else if(PCSurfaceFormat == D3DFMT_P8 && !g_bSupportsP8)
{
EmuWarning("D3DFMT_P8 is an unsupported texture format!");
PCSurfaceFormat = D3DFMT_X8R8G8B8;