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GS/GL: Make sure we always insert a barrier when tex is rt/ds.

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lightningterror
2026-04-01 23:05:31 +02:00
parent 7561f7ef70
commit 5cb7abf10c
1 changed files with 6 additions and 2 deletions
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pcsx2/GS/Renderers/OpenGL/GSDeviceOGL.cpp
+6 -2
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@@ -2726,10 +2726,14 @@ void GSDeviceOGL::RenderHW(GSHWDrawConfig& config)
// 2. Fullscreen sprite writes gray, rta hw blend blends based on dst alpha.
// On Nvidia, 2 seems to not pick up the data written by 1 unless we add a second barrier.
// Pretty sure GL is supposed to guarantee that the blend unit is coherent with previous pixel write out, so calling this a bug.
bool broken_blend_coherency_barrier = false;
if (m_bugs.broken_blend_coherency)
rt_hazard_barrier |= (psel.ps.IsFeedbackLoopRT() || psel.ps.blend_c == 1) && GLState::rt == config.rt;
broken_blend_coherency_barrier = (psel.ps.IsFeedbackLoopRT() || psel.ps.blend_c == 1) && GLState::rt == config.rt;
if (config.require_one_barrier || !m_features.texture_barrier)
{
rt_hazard_barrier = false; // Already in place or not available
broken_blend_coherency_barrier = false;
}
// additional non-pipeline config stuff
const bool point_size_enabled = config.vs.point_size;
@@ -2821,7 +2825,7 @@ void GSDeviceOGL::RenderHW(GSHWDrawConfig& config)
}
// Be careful of the rt already being bound and the blend using the RT without a barrier.
if (fb_optimization_needs_barrier && rt_hazard_barrier)
if ((fb_optimization_needs_barrier && broken_blend_coherency_barrier) || rt_hazard_barrier)
{
// Ensure all depth writes are finished before sampling
GL_INS("GL: Texture barrier to flush depth or rt before reading");