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[vulkan, qcom] Fix shader float controls on QCOM driver (#4297)

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Finishes my torture to find the culprit behind the broken behavior with float controls, even if device does support flush denorm on fp32 it doesn't really support it and provokes bad rounding modes by not flushing correctly denorms; this also returns the other working rounding modes on QCOM drivers.

_Special Thanks_

1.- Smoly The Big (@Gidoly)

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4297
Reviewed-by: Samuel <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
This commit is contained in:
CamilleLaVey
2026-08-24 17:57:12 +02:00
committed by crueter
parent d9336ce6ce
commit 60a474b8df
5 changed files with 5 additions and 3 deletions
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src/shader_recompiler/backend/spirv/emit_spirv.cpp
+1 -1
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@@ -335,7 +335,7 @@ void SetupDenormControl(const Profile& profile, const IR::Program& program, Emit
if (info.uses_fp32_denorms_flush && info.uses_fp32_denorms_preserve) {
LOG_DEBUG(Shader_SPIRV, "Fp32 denorm flush and preserve on the same shader");
} else if (info.uses_fp32_denorms_flush) {
if (profile.support_fp32_denorm_flush) {
if (profile.support_fp32_denorm_flush && !profile.has_broken_fp32_denorm_flush) {
ctx.AddCapability(spv::Capability::DenormFlushToZero);
ctx.AddExecutionMode(main_func, spv::ExecutionMode::DenormFlushToZero, 32U);
} else {