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GS/TC: Improve single pixel overlap detection in RT in RT

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refractionpcsx2
2026-08-15 14:26:15 +02:00
committed by lightningterror
parent ca03806a4c
commit ffa5690656
1 changed files with 10 additions and 1 deletions
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pcsx2/GS/Renderers/HW/GSTextureCache.cpp
+10 -1
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@@ -2580,12 +2580,21 @@ GSTextureCache::Target* GSTextureCache::LookupDrawTarget(GIFRegTEX0 TEX0, const
{
// Some games misuse the scissor so it ends up valid 1 pixel over, which causes hell for us. So check if it still overlaps without the extra pixel.
const GSVector4i adjusted_valid = GSVector4i(t->m_valid.x, t->m_valid.y, std::min(t->m_valid.z, static_cast<int>(t->m_TEX0.TBW) * 64), t->m_valid.w - 1);
const u32 adjusted_endblock = GSLocalMemory::GetEndBlockAddress(t->m_TEX0.TBP0, t->m_TEX0.TBW, t->m_TEX0.PSM, adjusted_valid);
u32 adjusted_endblock = GSLocalMemory::GetUnwrappedEndBlockAddress(t->m_TEX0.TBP0, t->m_TEX0.TBW, t->m_TEX0.PSM, adjusted_valid);
if (adjusted_endblock <= bp)
{
i++;
continue;
}
const GSVector4i adjusted_rect = GSVector4i(min_rect.x, min_rect.y, std::min(min_rect.z, static_cast<int>(t->m_TEX0.TBW) * 64), min_rect.w - 1);
// Also check the offset from the bp to the current request to see if it overlaps the begining of the selected target.
adjusted_endblock = GSLocalMemory::GetUnwrappedEndBlockAddress(TEX0.TBP0, TEX0.TBW, TEX0.PSM, adjusted_rect);
if (adjusted_endblock <= t->m_TEX0.TBP0)
{
i++;
continue;
}
const GSLocalMemory::psm_t& s_psm = GSLocalMemory::m_psm[TEX0.PSM];
const u32 widthpage_offset = (std::abs(static_cast<int>(bp - t->m_TEX0.TBP0)) >> 5) % std::max(t->m_TEX0.TBW, 1U);
const bool is_aligned_ok = widthpage_offset == 0 || ((min_rect.width() <= static_cast<int>((t->m_TEX0.TBW - widthpage_offset) * 64) && (t->m_TEX0.TBW == TEX0.TBW || TEX0.TBW == 1)) && bp >= t->m_TEX0.TBP0);