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GS: fbfetch full_barrier and one_barrier are identical

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TellowKrinkle 2022-04-13 02:04:02 -05:00 committed by tellowkrinkle
parent d3faa05479
commit 6b1e483d28
1 changed files with 14 additions and 4 deletions
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16
pcsx2/GS/Renderers/HW/GSRendererNew.cpp
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@ -640,12 +640,14 @@ void GSRendererNew::EmulateBlending(bool& DATE_PRIMID, bool& DATE_BARRIER, bool&
const bool prefer_sw_blend = m_conf.require_full_barrier || (m_conf.require_one_barrier && m_prim_overlap == PRIM_OVERLAP_NO);
// SW Blend is (nearly) free. Let's use it.
const bool one_barrier = m_conf.require_one_barrier || blend_ad_alpha_masked;
const bool no_prim_overlap = features.framebuffer_fetch ? (m_vt.m_primclass == GS_SPRITE_CLASS) : (m_prim_overlap == PRIM_OVERLAP_NO);
const bool impossible_or_free_blend = (blend_flag & BLEND_A_MAX) // Impossible blending
|| blend_non_recursive // Free sw blending, doesn't require barriers or reading fb
|| accumulation_blend // Mix of hw/sw blending
|| no_prim_overlap // Blend can be done in a single draw
|| (m_conf.require_full_barrier); // Another effect (for example fbmask) already requires a full barrier
|| (m_conf.require_full_barrier) // Another effect (for example fbmask) already requires a full barrier
|| (one_barrier && features.framebuffer_fetch); // On fbfetch, one barrier is like full barrier
switch (GSConfig.AccurateBlendingUnit)
{
@ -1713,9 +1715,17 @@ void GSRendererNew::DrawPrims(GSTexture* rt, GSTexture* ds, GSTextureCache::Sour
}
}
if (features.framebuffer_fetch)
{
// Intel GPUs on Metal lock up if you try to use DSB and framebuffer fetch at once
// We should never need to do that (since using framebuffer fetch means you should be able to do all blending in shader), but sometimes it slips through
if (m_conf.require_one_barrier || m_conf.require_full_barrier)
ASSERT(!m_conf.blend.enable);
// Barriers aren't needed with fbfetch.
m_conf.require_one_barrier &= !features.framebuffer_fetch;
m_conf.require_full_barrier &= !features.framebuffer_fetch;
m_conf.require_one_barrier = false;
m_conf.require_full_barrier = false;
}
// Swap full barrier for one barrier when there's no overlap.
if (m_conf.require_full_barrier && m_prim_overlap == PRIM_OVERLAP_NO)