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GS/HW: Disable depth if zero clear, ZBP == FBP, and depth/RT different bpp.

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TJnotJT
2026-03-25 20:51:58 -04:00
committed by lightningterror
parent 406c2c0bbf
commit 372fadfb99
1 changed files with 14 additions and 0 deletions
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pcsx2/GS/Renderers/HW/GSRendererHW.cpp
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@@ -9101,6 +9101,20 @@ bool GSRendererHW::DetectRedundantBufferClear(bool& no_rt, bool& no_ds, u32 fm_m
if (((~m_cached_ctx.FRAME.FBMSK & fm_mask) & GSLocalMemory::m_psm[m_cached_ctx.ZBUF.PSM].fmsk) == 0)
return false;
// Frame and Z have different bit depths and we're doing a zero clear. We don't care about page alignment here.
// If we don't disable one or the other, the texture cache could get corrupted on target lookup.
// Only Tokyo Xtreme Racer 3 is know to hit this path, and draws small vertical strips with 32 bit color and 16 bit depth.
const bool is_zero_color_clear = m_vt.m_eq.rgba == 0xFFFF && GetConstantDirectWriteMemClearColor() == 0;
const bool is_zero_depth_clear = m_vt.m_eq.z && GetConstantDirectWriteMemClearDepth() == 0;
if (GSLocalMemory::m_psm[m_cached_ctx.FRAME.PSM].bpp != GSLocalMemory::m_psm[m_cached_ctx.ZBUF.PSM].bpp &&
is_zero_color_clear && is_zero_depth_clear)
{
m_cached_ctx.ZBUF.ZMSK = true;
no_ds = true;
no_rt = false;
return true;
}
// Make sure the width is page aligned, so we don't break powerdrome-style clears where Z writes the right side of the page.
// We can't check page alignment on the size entirely, because Ratchet does 256x127 clears...
// Test cases: Devil May Cry 3, Tom & Jerry.