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GS/HW: Handle GT4 alpha channel shuffle

This commit is contained in:
Stenzek 2023-12-10 14:43:31 +10:00 committed by Connor McLaughlin
parent cb703a6ce5
commit b0c3a1e23f
1 changed files with 59 additions and 11 deletions
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70
pcsx2/GS/Renderers/HW/GSHwHack.cpp
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@ -676,10 +676,8 @@ bool GSHwHack::GSC_PolyphonyDigitalGames(GSRendererHW& r, int& skip)
return false;
}
GL_PUSH("GSC_PolyphonyDigitalGames(): HLE Gran Turismo RGB channel shuffle");
GSTextureCache::Target* tex = g_texture_cache->LookupTarget(RTEX0, GSVector2i(1, 1), r.GetTextureScaleFactor(), GSTextureCache::RenderTarget);
if (!tex)
GSTextureCache::Target* src = g_texture_cache->LookupTarget(RTEX0, GSVector2i(1, 1), r.GetTextureScaleFactor(), GSTextureCache::RenderTarget);
if (!src)
return false;
// have to set up the palette ourselves too, since GSC executes before it does
@ -693,14 +691,64 @@ bool GSHwHack::GSC_PolyphonyDigitalGames(GSRendererHW& r, int& skip)
shuffle_hle_active = true;
skip = 1;
GSHWDrawConfig& config = r.BeginHLEHardwareDraw(
tex->GetTexture(), nullptr, tex->GetScale(), tex->GetTexture(), tex->GetScale(), tex->GetUnscaledRect());
config.pal = palette->GetPaletteGSTexture();
config.ps.channel = ChannelFetch_RGB;
config.colormask.wrgba = 1 | 2 | 4;
r.EndHLEHardwareDraw(false);
const u32 fbmsk = RFBMSK;
if (RFBMSK != 0x00FFFFFFu)
{
GL_PUSH("GSC_PolyphonyDigitalGames(): HLE Gran Turismo RGB channel shuffle");
return true;
GSHWDrawConfig& config = r.BeginHLEHardwareDraw(
src->GetTexture(), nullptr, src->GetScale(), src->GetTexture(), src->GetScale(), src->GetUnscaledRect());
config.pal = palette->GetPaletteGSTexture();
config.ps.channel = ChannelFetch_RGB;
config.colormask.wrgba = 1 | 2 | 4;
r.EndHLEHardwareDraw(false);
return true;
}
else
{
// There's a second variant of this shuffle which gets used in the fade on some setups. See issue #10144.
// Instead of extracting the RGB channels, then immediately applying the brightness effect, it extracts
// each channel to a separate buffer, then applies them a few hundred draws later. So, we can replicate
// that in HLE by creating 3 targets, extracting the corresponding channel to each.
// Can't use the valid of src, because it gets converted from depth at some point..
// Use the drawn, it's 640x256, which should be correct. The 3 targets get stacked up immediately after
// each other, in NTSC, that's 0x0, 0xA00, 0x1400, but try to compute it dynamically in case it differs.
const GSVector2i size = GSVector2i(src->m_drawn_since_read.z, src->m_drawn_since_read.w);
const u32 page_offset = (size.y / 32) * src->m_TEX0.TBW * BLOCKS_PER_PAGE;
GL_PUSH("GSC_PolyphonyDigitalGames(): HLE Gran Turismo A channel shuffle");
GL_INS("Src: %x %s TBW %u, Dst: %x, %x, %x", src->m_TEX0.TBP0, psm_str(src->m_TEX0.PSM), src->m_TEX0.TBW,
src->m_TEX0.TBP0, src->m_TEX0.TBP0 + page_offset, src->m_TEX0.TBP0 + page_offset * 2);
GL_INS("Rect: %d,%d => %d,%d", src->m_drawn_since_read.x, src->m_drawn_since_read.y,
src->m_drawn_since_read.z, src->m_drawn_since_read.w);
for (u32 channel = 0; channel < 3; channel++)
{
const GIFRegTEX0 TEX0 = GIFRegTEX0::Create(RTEX0.TBP0 + channel * page_offset, RTEX0.TBW, PSMCT32);
GSTextureCache::Target* dst = g_texture_cache->LookupTarget(TEX0, src->GetUnscaledSize(), src->GetScale(), GSTextureCache::RenderTarget, true, fbmsk);
if (!dst)
{
dst = g_texture_cache->CreateTarget(TEX0, size, size, src->GetScale(), GSTextureCache::RenderTarget, true, fbmsk);
if (!dst)
continue;
}
dst->m_TEX0.PSM = PSMCT32;
dst->UpdateValidChannels(PSMCT32, fbmsk);
dst->UpdateValidity(GSVector4i::loadh(size));
GSHWDrawConfig& config = r.BeginHLEHardwareDraw(
dst->GetTexture(), nullptr, dst->GetScale(), src->GetTexture(), src->GetScale(), src->GetUnscaledRect());
config.pal = palette->GetPaletteGSTexture();
config.ps.channel = ChannelFetch_RED + channel;
config.colormask.wrgba = 8;
r.EndHLEHardwareDraw(false);
}
return true;
}
}
bool GSHwHack::GSC_BlueTongueGames(GSRendererHW& r, int& skip)