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GS/HW: Fix GT4/T5 CRC hacks in DirectX renderers

This commit is contained in:
Stenzek 2023-03-31 19:09:23 +10:00 committed by refractionpcsx2
parent 4af3856d15
commit fff8592b4e
1 changed files with 14 additions and 2 deletions
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16
pcsx2/GS/Renderers/HW/GSRendererHW.cpp
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@ -2742,13 +2742,22 @@ __ri bool GSRendererHW::EmulateChannelShuffle(GSTextureCache::Target* src, bool
// First let's check we really have a channel shuffle effect
if (m_game.title == CRC::PolyphonyDigitalGames)
{
// These games appear to grab red and write it to a new page-sized render target, then
// grab green and blue, with alpha blending turned on, to accumulate them to the temporary
// target, then copy the temporary target back to the main FB. The CLUT is set to an offset
// ramp texture, presumably this is for screen brightness.
GL_INS("Gran Turismo RGB Channel");
if (test_only)
{
// Since test_only gets executed when creating a source, before target lookup, we can hack
// the FBP here to point to the source, which is where it will eventually be copied back to.
pxAssertMsg((m_context->TEX0.TBP0 & 31) == 0, "TEX0 should be page aligned");
m_context->FRAME.FBP = m_context->TEX0.TBP0 >> 5;
return true;
}
m_conf.ps.channel = ChannelFetch_RGB;
m_context->TEX0.TFX = TFX_DECAL;
m_conf.rt = src->m_texture;
}
else if (m_game.title == CRC::Tekken5)
{
@ -2757,14 +2766,17 @@ __ri bool GSRendererHW::EmulateChannelShuffle(GSTextureCache::Target* src, bool
// Used in stages: Secret Garden, Acid Rain, Moonlit Wilderness
GL_INS("Tekken5 RGB Channel");
if (test_only)
{
pxAssertMsg((m_context->TEX0.TBP0 & 31) == 0, "TEX0 should be page aligned");
m_context->FRAME.FBP = m_context->TEX0.TBP0 >> 5;
return true;
}
m_conf.ps.channel = ChannelFetch_RGB;
m_context->FRAME.FBMSK = 0xFF000000;
// 12 pages: 2 calls by channel, 3 channels, 1 blit
// Minus current draw call
m_skip = 12 * (3 + 3 + 1) - 1;
m_conf.rt = src->m_texture;
}
else
{