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GS/HW: Update cached source alpha if linked to target

This commit is contained in:
refractionpcsx2 2024-01-10 17:05:21 +00:00
parent 2b47254bdd
commit 56a950a074
1 changed files with 25 additions and 0 deletions
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25
pcsx2/GS/Renderers/HW/GSTextureCache.cpp
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@ -1675,6 +1675,31 @@ GSTextureCache::Source* GSTextureCache::LookupSource(const bool is_color, const
TEX0.TBP0, psm_s.pal > 0 ? TEX0.CBP : 0,
psm_str(TEX0.PSM));
// If it's from a target, we need to make sure the alpha information is up to date, especially in 16/24 bit formats where it can change draw to draw.
// Guard against merged targets which don't actually link.
if (src->m_target && src->m_from_target)
{
if ((src->m_TEX0.PSM & 0xf) == PSMCT24)
{
src->m_alpha_minmax.first = TEXA.AEM ? 0 : TEXA.TA0;
src->m_alpha_minmax.second = TEXA.TA0;
}
else
{
src->m_alpha_minmax.first = src->m_from_target->m_alpha_min;
src->m_alpha_minmax.second = src->m_from_target->m_alpha_max;
if (!src->m_32_bits_fmt)
{
const bool using_both = (src->m_alpha_minmax.first ^ src->m_alpha_minmax.second) & 128;
const bool using_ta1 = (src->m_alpha_minmax.second & 128);
src->m_alpha_minmax.first = TEXA.AEM ? 0 : (using_both ? std::min(TEXA.TA1, TEXA.TA0) : (using_ta1 ? TEXA.TA1 : TEXA.TA0));
src->m_alpha_minmax.second = (using_both ? std::max(TEXA.TA1, TEXA.TA0) : (using_ta1 ? TEXA.TA1 : TEXA.TA0));
}
}
}
if (gpu_clut)
AttachPaletteToSource(src, gpu_clut);
else if (src->m_palette && (!src->m_palette_obj || !src->ClutMatch({ clut, psm_s.pal })))