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shader: interpolate f16 parameter halves (V_INTERP_P1LL_F16, V_INTERP_P2_F16) (#1792)

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shader: interpolate packed f16 attributes for v_interp_p1ll_f16 and v_interp_p2_f16

Co-authored-by: nmzik <Nmzik@mail.ru>
This commit is contained in:
Nawid3333andnmzik authored and GitHub committed 2026-10-22 04:54:10 +02:00
1 parent 8502d8a77d
commit d7c1896647
10 files changed
+181 -75
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src/graphics/shader/recompiler/ir/passes/ShaderInfoCollection.cpp
+11 -1
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@@ -373,7 +373,8 @@ void Visit(Program& program, ShaderStageInputInfo input_info, InputUsage& inputs
}
}
switch (inst.GetOpcode()) {
case ValueOpcode::GetAttribute: {
case ValueOpcode::GetAttribute:
case ValueOpcode::GetAttributeF16: {
if (!inst.Arg(0).IsImmediate() || inst.Arg(0).GetType() != Type::U32 ||
!inst.Arg(1).IsImmediate() || inst.Arg(1).GetType() != Type::U32) {
return Fail("typed attribute reference is not constant");
@@ -395,6 +396,15 @@ void Visit(Program& program, ShaderStageInputInfo input_info, InputUsage& inputs
auto& components = inputs.components[inst.Arg(0).U32()];
components = std::max(components, static_cast<uint8_t>(inst.Arg(1).U32() + 1u));
}
if (inst.GetOpcode() == ValueOpcode::GetAttributeF16) {
if (program.stage != ShaderType::Pixel || !inst.Arg(2).IsImmediate()) {
return Fail("f16 attribute reference is invalid");
}
// FP16_INTERP_MODE packs two halves per dword, so smooth inputs blend unpacked
// vertices; flat inputs unpack the provoking vertex.
const auto input = inst.Arg(0).U32();
inputs.per_vertex[input] |= !ShaderPixelParameterIsFlat(*input_info.pixel, input);
}
break;
}
case ValueOpcode::GetInterpolationParameter: {