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shader: Implement NDC [-1, 1], attribute types and default varying initialization

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This commit is contained in:
ReinUsesLisp 2021-03-24 01:33:45 -03:00 • committed by ameerj
parent 1d2db78398
commit 68a9505d8a
15 changed files with 186 additions and 43 deletions
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35
src/shader_recompiler/backend/spirv/emit_context.cpp
View file

@ -67,6 +67,18 @@ Id DefineInput(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin =
Id DefineOutput(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin = std::nullopt) {
return DefineVariable(ctx, type, builtin, spv::StorageClass::Output);
}
Id GetAttributeType(EmitContext& ctx, AttributeType type) {
switch (type) {
case AttributeType::Float:
return ctx.F32[4];
case AttributeType::SignedInt:
return ctx.TypeVector(ctx.TypeInt(32, true), 4);
case AttributeType::UnsignedInt:
return ctx.U32[4];
}
throw InvalidArgument("Invalid attribute type {}", type);
}
} // Anonymous namespace
void VectorTypes::Define(Sirit::Module& sirit_ctx, Id base_type, std::string_view name) {
@ -82,11 +94,11 @@ void VectorTypes::Define(Sirit::Module& sirit_ctx, Id base_type, std::string_vie
}
EmitContext::EmitContext(const Profile& profile_, IR::Program& program, u32& binding)
: Sirit::Module(0x00010000), profile{profile_} {
: Sirit::Module(0x00010000), profile{profile_}, stage{program.stage} {
AddCapability(spv::Capability::Shader);
DefineCommonTypes(program.info);
DefineCommonConstants();
DefineInterfaces(program.info, program.stage);
DefineInterfaces(program.info);
DefineConstantBuffers(program.info, binding);
DefineStorageBuffers(program.info, binding);
DefineTextures(program.info, binding);
@ -130,6 +142,9 @@ void EmitContext::DefineCommonTypes(const Info& info) {
U32.Define(*this, TypeInt(32, false), "u32");
input_f32 = Name(TypePointer(spv::StorageClass::Input, F32[1]), "input_f32");
input_u32 = Name(TypePointer(spv::StorageClass::Input, U32[1]), "input_u32");
input_s32 = Name(TypePointer(spv::StorageClass::Input, TypeInt(32, true)), "input_s32");
output_f32 = Name(TypePointer(spv::StorageClass::Output, F32[1]), "output_f32");
if (info.uses_int8) {
@ -162,9 +177,9 @@ void EmitContext::DefineCommonConstants() {
u32_zero_value = Constant(U32[1], 0U);
}
void EmitContext::DefineInterfaces(const Info& info, Stage stage) {
DefineInputs(info, stage);
DefineOutputs(info, stage);
void EmitContext::DefineInterfaces(const Info& info) {
DefineInputs(info);
DefineOutputs(info);
}
void EmitContext::DefineConstantBuffers(const Info& info, u32& binding) {
@ -252,7 +267,7 @@ void EmitContext::DefineLabels(IR::Program& program) {
}
}
void EmitContext::DefineInputs(const Info& info, Stage stage) {
void EmitContext::DefineInputs(const Info& info) {
if (info.uses_workgroup_id) {
workgroup_id = DefineInput(*this, U32[3], spv::BuiltIn::WorkgroupId);
}
@ -288,8 +303,8 @@ void EmitContext::DefineInputs(const Info& info, Stage stage) {
if (!info.loads_generics[index]) {
continue;
}
// FIXME: Declare size from input
const Id id{DefineInput(*this, F32[4])};
const Id type{GetAttributeType(*this, profile.generic_input_types[index])};
const Id id{DefineInput(*this, type)};
Decorate(id, spv::Decoration::Location, static_cast<u32>(index));
Name(id, fmt::format("in_attr{}", index));
input_generics[index] = id;
@ -323,8 +338,8 @@ void EmitContext::DefineConstantBuffers(const Info& info, Id UniformDefinitions:
}
}
void EmitContext::DefineOutputs(const Info& info, Stage stage) {
if (info.stores_position) {
void EmitContext::DefineOutputs(const Info& info) {
if (info.stores_position || stage == Stage::VertexB) {
output_position = DefineOutput(*this, F32[4], spv::BuiltIn::Position);
}
for (size_t i = 0; i < info.stores_generics.size(); ++i) {

10
src/shader_recompiler/backend/spirv/emit_context.h
View file

@ -52,6 +52,7 @@ public:
[[nodiscard]] Id Def(const IR::Value& value);
const Profile& profile;
Stage stage{};
Id void_id{};
Id U1{};
@ -72,6 +73,9 @@ public:
UniformDefinitions uniform_types;
Id input_f32{};
Id input_u32{};
Id input_s32{};
Id output_f32{};
Id storage_u32{};
@ -104,7 +108,7 @@ public:
private:
void DefineCommonTypes(const Info& info);
void DefineCommonConstants();
void DefineInterfaces(const Info& info, Stage stage);
void DefineInterfaces(const Info& info);
void DefineConstantBuffers(const Info& info, u32& binding);
void DefineStorageBuffers(const Info& info, u32& binding);
void DefineTextures(const Info& info, u32& binding);
@ -113,8 +117,8 @@ private:
void DefineConstantBuffers(const Info& info, Id UniformDefinitions::*member_type, u32 binding,
Id type, char type_char, u32 element_size);
void DefineInputs(const Info& info, Stage stage);
void DefineOutputs(const Info& info, Stage stage);
void DefineInputs(const Info& info);
void DefineOutputs(const Info& info);
};
} // namespace Shader::Backend::SPIRV

2
src/shader_recompiler/backend/spirv/emit_spirv.h
View file

@ -28,6 +28,8 @@ void EmitLoopMerge(EmitContext& ctx, Id merge_label, Id continue_label);
void EmitSelectionMerge(EmitContext& ctx, Id merge_label);
void EmitReturn(EmitContext& ctx);
void EmitDemoteToHelperInvocation(EmitContext& ctx, Id continue_label);
void EmitPrologue(EmitContext& ctx);
void EmitEpilogue(EmitContext& ctx);
void EmitGetRegister(EmitContext& ctx);
void EmitSetRegister(EmitContext& ctx);
void EmitGetPred(EmitContext& ctx);

69
src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
View file

@ -2,30 +2,26 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <tuple>
#include "shader_recompiler/backend/spirv/emit_spirv.h"
#pragma optimize("", off)
namespace Shader::Backend::SPIRV {
namespace {
Id InputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
const u32 element{static_cast<u32>(attr) % 4};
const auto element_id{[&] { return ctx.Constant(ctx.U32[1], element); }};
if (IR::IsGeneric(attr)) {
const u32 index{IR::GenericAttributeIndex(attr)};
return ctx.OpAccessChain(ctx.input_f32, ctx.input_generics.at(index), element_id());
}
switch (attr) {
case IR::Attribute::PositionX:
case IR::Attribute::PositionY:
case IR::Attribute::PositionZ:
case IR::Attribute::PositionW:
return ctx.OpAccessChain(ctx.input_f32, ctx.input_position, element_id());
case IR::Attribute::InstanceId:
return ctx.OpLoad(ctx.U32[1], ctx.instance_id);
case IR::Attribute::VertexId:
return ctx.OpLoad(ctx.U32[1], ctx.vertex_id);
default:
throw NotImplementedException("Read attribute {}", attr);
std::tuple<Id, Id, bool> AttrTypes(EmitContext& ctx, u32 index) {
const bool is_first_reader{ctx.stage == Stage::VertexB};
const AttributeType type{ctx.profile.generic_input_types.at(index)};
switch (type) {
case AttributeType::Float:
return {ctx.input_f32, ctx.F32[1], false};
case AttributeType::UnsignedInt:
return {ctx.input_u32, ctx.U32[1], true};
case AttributeType::SignedInt:
return {ctx.input_s32, ctx.TypeInt(32, true), true};
}
throw InvalidArgument("Invalid attribute type {}", type);
}
Id OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
@ -129,19 +125,40 @@ Id EmitGetCbufU64(EmitContext& ctx, const IR::Value& binding, const IR::Value& o
}
Id EmitGetAttribute(EmitContext& ctx, IR::Attribute attr) {
if (!ctx.profile.support_vertex_instance_id) {
switch (attr) {
case IR::Attribute::InstanceId:
const u32 element{static_cast<u32>(attr) % 4};
const auto element_id{[&] { return ctx.Constant(ctx.U32[1], element); }};
if (IR::IsGeneric(attr)) {
const u32 index{IR::GenericAttributeIndex(attr)};
const auto [pointer_type, type, needs_cast]{AttrTypes(ctx, index)};
const Id generic_id{ctx.input_generics.at(index)};
const Id pointer{ctx.OpAccessChain(pointer_type, generic_id, element_id())};
const Id value{ctx.OpLoad(type, pointer)};
return needs_cast ? ctx.OpBitcast(ctx.F32[1], value) : value;
}
switch (attr) {
case IR::Attribute::PositionX:
case IR::Attribute::PositionY:
case IR::Attribute::PositionZ:
case IR::Attribute::PositionW:
return ctx.OpLoad(ctx.F32[1],
ctx.OpAccessChain(ctx.input_f32, ctx.input_position, element_id()));
case IR::Attribute::InstanceId:
if (ctx.profile.support_vertex_instance_id) {
return ctx.OpLoad(ctx.U32[1], ctx.instance_id);
} else {
return ctx.OpISub(ctx.U32[1], ctx.OpLoad(ctx.U32[1], ctx.instance_index),
ctx.OpLoad(ctx.U32[1], ctx.base_instance));
case IR::Attribute::VertexId:
}
case IR::Attribute::VertexId:
if (ctx.profile.support_vertex_instance_id) {
return ctx.OpLoad(ctx.U32[1], ctx.vertex_id);
} else {
return ctx.OpISub(ctx.U32[1], ctx.OpLoad(ctx.U32[1], ctx.vertex_index),
ctx.OpLoad(ctx.U32[1], ctx.base_vertex));
default:
break;
}
default:
throw NotImplementedException("Read attribute {}", attr);
}
return ctx.OpLoad(ctx.F32[1], InputAttrPointer(ctx, attr));
}
void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, Id value) {

35
src/shader_recompiler/backend/spirv/emit_spirv_special.cpp Normal file
View file

@ -0,0 +1,35 @@
// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "shader_recompiler/backend/spirv/emit_spirv.h"
namespace Shader::Backend::SPIRV {
void EmitPrologue(EmitContext& ctx) {
if (ctx.stage == Stage::VertexB) {
const Id zero{ctx.Constant(ctx.F32[1], 0.0f)};
const Id one{ctx.Constant(ctx.F32[1], 1.0f)};
const Id null_vector{ctx.ConstantComposite(ctx.F32[4], zero, zero, zero, zero)};
ctx.OpStore(ctx.output_position, ctx.ConstantComposite(ctx.F32[4], zero, zero, zero, one));
for (const Id generic_id : ctx.output_generics) {
if (Sirit::ValidId(generic_id)) {
ctx.OpStore(generic_id, null_vector);
}
}
}
}
void EmitEpilogue(EmitContext& ctx) {
if (ctx.profile.convert_depth_mode) {
const Id type{ctx.F32[1]};
const Id position{ctx.OpLoad(ctx.F32[4], ctx.output_position)};
const Id z{ctx.OpCompositeExtract(type, position, 2u)};
const Id w{ctx.OpCompositeExtract(type, position, 3u)};
const Id screen_depth{ctx.OpFMul(type, ctx.OpFAdd(type, z, w), ctx.Constant(type, 0.5f))};
const Id vector{ctx.OpCompositeInsert(ctx.F32[4], screen_depth, position, 2u)};
ctx.OpStore(ctx.output_position, vector);
}
}
} // namespace Shader::Backend::SPIRV