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shader_recompiler: Implement basic 64-bit floating point support (#915)

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* shader_recompiler: Implement basic 64-bit floating point support

* Fix formatting
This commit is contained in:
Daniel R. 2024-09-15 22:53:08 +02:00 • committed by GitHub
parent 75a4df53a5
commit dcf245b814
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GPG key ID: B5690EEEBB952194
13 changed files with 65 additions and 30 deletions
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3
src/shader_recompiler/backend/spirv/emit_spirv.cpp
View file

@ -184,6 +184,9 @@ void DefineEntryPoint(const IR::Program& program, EmitContext& ctx, Id main) {
ctx.AddCapability(spv::Capability::Float16);
ctx.AddCapability(spv::Capability::Int16);
}
if (info.uses_fp64) {
ctx.AddCapability(spv::Capability::Float64);
}
ctx.AddCapability(spv::Capability::Int64);
if (info.has_storage_images || info.has_image_buffers) {
ctx.AddCapability(spv::Capability::StorageImageExtendedFormats);

8
src/shader_recompiler/backend/spirv/emit_spirv_bitwise_conversion.cpp
View file

@ -14,8 +14,8 @@ Id EmitBitCastU32F32(EmitContext& ctx, Id value) {
return ctx.OpBitcast(ctx.U32[1], value);
}
void EmitBitCastU64F64(EmitContext&) {
UNREACHABLE_MSG("SPIR-V Instruction");
Id EmitBitCastU64F64(EmitContext& ctx, Id value) {
return ctx.OpBitcast(ctx.U64, value);
}
Id EmitBitCastF16U16(EmitContext& ctx, Id value) {
@ -38,6 +38,10 @@ Id EmitUnpackUint2x32(EmitContext& ctx, Id value) {
return ctx.OpBitcast(ctx.U32[2], value);
}
Id EmitPackFloat2x32(EmitContext& ctx, Id value) {
return ctx.OpBitcast(ctx.F64[1], value);
}
Id EmitPackFloat2x16(EmitContext& ctx, Id value) {
return ctx.OpBitcast(ctx.U32[1], value);
}

3
src/shader_recompiler/backend/spirv/emit_spirv_instructions.h
View file

@ -158,12 +158,13 @@ Id EmitSelectF32(EmitContext& ctx, Id cond, Id true_value, Id false_value);
Id EmitSelectF64(EmitContext& ctx, Id cond, Id true_value, Id false_value);
Id EmitBitCastU16F16(EmitContext& ctx, Id value);
Id EmitBitCastU32F32(EmitContext& ctx, Id value);
void EmitBitCastU64F64(EmitContext& ctx);
Id EmitBitCastU64F64(EmitContext& ctx, Id value);
Id EmitBitCastF16U16(EmitContext& ctx, Id value);
Id EmitBitCastF32U32(EmitContext& ctx, Id value);
void EmitBitCastF64U64(EmitContext& ctx);
Id EmitPackUint2x32(EmitContext& ctx, Id value);
Id EmitUnpackUint2x32(EmitContext& ctx, Id value);
Id EmitPackFloat2x32(EmitContext& ctx, Id value);
Id EmitPackFloat2x16(EmitContext& ctx, Id value);
Id EmitUnpackFloat2x16(EmitContext& ctx, Id value);
Id EmitPackHalf2x16(EmitContext& ctx, Id value);

6
src/shader_recompiler/backend/spirv/spirv_emit_context.cpp
View file

@ -85,6 +85,9 @@ void EmitContext::DefineArithmeticTypes() {
F16[1] = Name(TypeFloat(16), "f16_id");
U16 = Name(TypeUInt(16), "u16_id");
}
if (info.uses_fp64) {
F64[1] = Name(TypeFloat(64), "f64_id");
}
F32[1] = Name(TypeFloat(32), "f32_id");
S32[1] = Name(TypeSInt(32), "i32_id");
U32[1] = Name(TypeUInt(32), "u32_id");
@ -94,6 +97,9 @@ void EmitContext::DefineArithmeticTypes() {
if (info.uses_fp16) {
F16[i] = Name(TypeVector(F16[1], i), fmt::format("f16vec{}_id", i));
}
if (info.uses_fp64) {
F64[i] = Name(TypeVector(F64[1], i), fmt::format("f64vec{}_id", i));
}
F32[i] = Name(TypeVector(F32[1], i), fmt::format("f32vec{}_id", i));
S32[i] = Name(TypeVector(S32[1], i), fmt::format("i32vec{}_id", i));
U32[i] = Name(TypeVector(U32[1], i), fmt::format("u32vec{}_id", i));