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GS/HW: Don't use coverage when doing Af or Ad blend.

This commit is contained in:
lightningterror 2025-03-27 16:44:55 +01:00
parent 29cd068dbd
commit 1b4ced3e55
1 changed files with 4 additions and 9 deletions
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13
pcsx2/GS/Renderers/HW/GSRendererHW.cpp
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@ -4259,14 +4259,7 @@ void GSRendererHW::EmulateBlending(int rt_alpha_min, int rt_alpha_max, const boo
m_conf.ps.blend_d = 2;
}
}
// When AA1 is enabled and Alpha Blending is disabled, alpha blending done with coverage instead of alpha.
// We use a COV value of 128 (full coverage) in triangles (except the edge geometry, which we can't do easily).
if (IsCoverageAlpha())
{
m_conf.ps.fixed_one_a = 1;
m_conf.ps.blend_c = 0;
}
else if (m_conf.ps.blend_c == 1)
if (m_conf.ps.blend_c == 1)
{
// When both rt alpha min and max are equal replace Ad with Af, easier to manage.
if (rt_alpha_min == rt_alpha_max)
@ -6169,6 +6162,9 @@ __ri void GSRendererHW::DrawPrims(GSTextureCache::Target* rt, GSTextureCache::Ta
new_scale_rt_alpha = rt->m_rt_alpha_scale;
}
// AA1: Set alpha source to coverage 128 when there is no alpha blending.
m_conf.ps.fixed_one_a = IsCoverageAlpha();
if ((!IsOpaque() || m_context->ALPHA.IsBlack()) && rt && ((m_conf.colormask.wrgba & 0x7) || (m_texture_shuffle && !m_copy_16bit_to_target_shuffle && !m_same_group_texture_shuffle)))
{
EmulateBlending(blend_alpha_min, blend_alpha_max, DATE, DATE_PRIMID, DATE_BARRIER, rt, can_scale_rt_alpha, new_scale_rt_alpha);
@ -6177,7 +6173,6 @@ __ri void GSRendererHW::DrawPrims(GSTextureCache::Target* rt, GSTextureCache::Ta
{
m_conf.blend = {}; // No blending please
m_conf.ps.no_color1 = true;
m_conf.ps.fixed_one_a = IsCoverageAlpha();
if (can_scale_rt_alpha && !new_scale_rt_alpha && m_conf.colormask.wa)
{