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Shader: implement RDNA2 image atomic float maximum

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Shader: implement RDNA2 image atomic float minimum

Co-authored-by: foufouadi <attar.foued@gmail.com>
Co-authored-by: frans <francois.att@gmail.com>
Co-authored-by: fxpw <fxpw@outlook.com>
Co-authored-by: Matthew Hurley <171001439+theantipopau@users.noreply.github.com>
This commit is contained in:
nmzik
2026-09-26 14:04:22 +04:00
parent fd2e15ee73
commit cf268af839
11 changed files with 161 additions and 6 deletions
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterImage.cpp
+10 -1
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@@ -877,7 +877,7 @@ void EmitImage(ValueEmitContext& ctx, const IR::Inst& inst) {
return;
}
const auto atomic_opcode = ImageAtomicOpcode(op);
if (atomic_opcode != spv::OpNop) {
if (image_info.access == IR::ImageAccess::Atomic) {
const auto dimension = image.dimension;
ctx.Define(inst, EmitValueOrZeroIfCondition(state, ctx.Arg(inst, 3), [&]() {
const auto pointer = state.builder.AllocateId();
@@ -887,6 +887,15 @@ void EmitImage(ValueEmitContext& ctx, const IR::Inst& inst) {
StorageImageDescriptorPointer(state, mem.resource),
CoordU32(ctx, mem, *address, dimension),
ConstantU32(state, 0));
if (op == IR::ValueOpcode::ImageAtomicFMin32 ||
op == IR::ValueOpcode::ImageAtomicFMax32) {
return AtomicUpdate(state, pointer, IR::ResourceKind::Image,
[&](uint32_t old) {
return EmitFloatAtomicReplacement(
state, old, ctx.Arg(inst, 2),
op == IR::ValueOpcode::ImageAtomicFMax32);
});
}
const auto old = state.builder.AllocateId();
state.builder.AddFunction(atomic_opcode, TypeU32(state), old, pointer,
ConstantU32(state, spv::ScopeDevice),