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shader: Decode SUST and implement backing image functionality

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This commit is contained in:
ReinUsesLisp
2019-04-27 02:07:18 -03:00
parent 007ffbef1c
commit 06c4ce8645
10 changed files with 284 additions and 3 deletions
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1
src/video_core/CMakeLists.txt
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@@ -90,6 +90,7 @@ add_library(video_core STATIC
shader/decode/conversion.cpp
shader/decode/memory.cpp
shader/decode/texture.cpp
shader/decode/image.cpp
shader/decode/float_set_predicate.cpp
shader/decode/integer_set_predicate.cpp
shader/decode/half_set_predicate.cpp

66
src/video_core/engines/shader_bytecode.h
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@@ -126,6 +126,15 @@ union Sampler {
u64 value{};
};
union Image {
Image() = default;
constexpr explicit Image(u64 value) : value{value} {}
BitField<36, 13, u64> index;
u64 value;
};
} // namespace Tegra::Shader
namespace std {
@@ -344,6 +353,26 @@ enum class TextureMiscMode : u64 {
PTP,
};
enum class SurfaceDataMode : u64 {
P = 0,
D_BA = 1,
};
enum class OutOfBoundsStore : u64 {
Ignore = 0,
Clamp = 1,
Trap = 2,
};
enum class ImageType : u64 {
Texture1D = 0,
TextureBuffer = 1,
Texture1DArray = 2,
Texture2D = 3,
Texture2DArray = 4,
Texture3D = 5,
};
enum class IsberdMode : u64 {
None = 0,
Patch = 1,
@@ -398,7 +427,7 @@ enum class LmemLoadCacheManagement : u64 {
CV = 3,
};
enum class LmemStoreCacheManagement : u64 {
enum class StoreCacheManagement : u64 {
Default = 0,
CG = 1,
CS = 2,
@@ -811,7 +840,7 @@ union Instruction {
} ld_l;
union {
BitField<44, 2, LmemStoreCacheManagement> cache_management;
BitField<44, 2, StoreCacheManagement> cache_management;
} st_l;
union {
@@ -1294,6 +1323,35 @@ union Instruction {
}
} tlds;
union {
BitField<24, 2, StoreCacheManagement> cache_management;
BitField<33, 3, ImageType> image_type;
BitField<49, 2, OutOfBoundsStore> out_of_bounds_store;
BitField<51, 1, u64> is_immediate;
BitField<52, 1, SurfaceDataMode> mode;
BitField<20, 3, StoreType> store_data_layout;
BitField<20, 4, u64> component_mask_selector;
bool IsComponentEnabled(std::size_t component) const {
ASSERT(mode == SurfaceDataMode::P);
constexpr u8 R = 0b0001;
constexpr u8 G = 0b0010;
constexpr u8 B = 0b0100;
constexpr u8 A = 0b1000;
constexpr std::array<u8, 16> mask = {
0, (R), (G), (R | G), (B), (R | B),
(G | B), (R | G | B), (A), (R | A), (G | A), (R | G | A),
(B | A), (R | B | A), (G | B | A), (R | G | B | A)};
return std::bitset<4>{mask.at(component_mask_selector)}.test(component);
}
StoreType GetStoreDataLayout() const {
ASSERT(mode == SurfaceDataMode::D_BA);
return store_data_layout;
}
} sust;
union {
BitField<20, 24, u64> target;
BitField<5, 1, u64> constant_buffer;
@@ -1385,6 +1443,7 @@ union Instruction {
Attribute attribute;
Sampler sampler;
Image image;
u64 value;
};
@@ -1428,6 +1487,7 @@ public:
TLD4S, // Texture Load 4 with scalar / non - vec4 source / destinations
TMML_B, // Texture Mip Map Level
TMML, // Texture Mip Map Level
SUST, // Surface Store
EXIT,
IPA,
OUT_R, // Emit vertex/primitive
@@ -1558,6 +1618,7 @@ public:
Synch,
Memory,
Texture,
Image,
FloatSet,
FloatSetPredicate,
IntegerSet,
@@ -1703,6 +1764,7 @@ private:
INST("1101111100------", Id::TLD4S, Type::Texture, "TLD4S"),
INST("110111110110----", Id::TMML_B, Type::Texture, "TMML_B"),
INST("1101111101011---", Id::TMML, Type::Texture, "TMML"),
INST("11101011001-----", Id::SUST, Type::Image, "SUST"),
INST("11100000--------", Id::IPA, Type::Trivial, "IPA"),
INST("1111101111100---", Id::OUT_R, Type::Trivial, "OUT_R"),
INST("1110111111010---", Id::ISBERD, Type::Trivial, "ISBERD"),

70
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@@ -180,6 +180,7 @@ public:
DeclareGlobalMemory();
DeclareSamplers();
DeclarePhysicalAttributeReader();
DeclareImages();
code.AddLine("void execute_{}() {{", suffix);
++code.scope;
@@ -531,6 +532,36 @@ private:
code.AddNewLine();
}
void DeclareImages() {
const auto& images{ir.GetImages()};
for (const auto& image : images) {
const std::string image_type = [&]() {
switch (image.GetType()) {
case Tegra::Shader::ImageType::Texture1D:
return "image1D";
case Tegra::Shader::ImageType::TextureBuffer:
return "bufferImage";
case Tegra::Shader::ImageType::Texture1DArray:
return "image1DArray";
case Tegra::Shader::ImageType::Texture2D:
return "image2D";
case Tegra::Shader::ImageType::Texture2DArray:
return "image2DArray";
case Tegra::Shader::ImageType::Texture3D:
return "image3D";
default:
UNREACHABLE();
return "image1D";
}
}();
code.AddLine("layout (binding = IMAGE_BINDING_" + std::to_string(image.GetIndex()) +
") coherent volatile writeonly uniform " + image_type + ' ' +
GetImage(image) + ';');
}
if (!images.empty())
code.AddNewLine();
}
void VisitBlock(const NodeBlock& bb) {
for (const auto& node : bb) {
if (const std::string expr = Visit(node); !expr.empty()) {
@@ -1478,6 +1509,39 @@ private:
return tmp;
}
std::string ImageStore(Operation operation) {
constexpr std::array<const char*, 4> constructors{"int(", "ivec2(", "ivec3(", "ivec4("};
const auto meta{std::get<MetaImage>(operation.GetMeta())};
std::string expr = "imageStore(";
expr += GetImage(meta.image);
expr += ", ";
const std::size_t coords_count{operation.GetOperandsCount()};
expr += constructors.at(coords_count - 1);
for (std::size_t i = 0; i < coords_count; ++i) {
expr += VisitOperand(operation, i, Type::Int);
if (i + 1 < coords_count) {
expr += ", ";
}
}
expr += "), ";
const std::size_t values_count{meta.values.size()};
UNIMPLEMENTED_IF(values_count != 4);
expr += "vec4(";
for (std::size_t i = 0; i < values_count; ++i) {
expr += Visit(meta.values.at(i));
if (i + 1 < values_count) {
expr += ", ";
}
}
expr += "));";
code.AddLine(expr);
return {};
}
std::string Branch(Operation operation) {
const auto target = std::get_if<ImmediateNode>(&*operation[0]);
UNIMPLEMENTED_IF(!target);
@@ -1718,6 +1782,8 @@ private:
&GLSLDecompiler::TextureQueryLod,
&GLSLDecompiler::TexelFetch,
&GLSLDecompiler::ImageStore,
&GLSLDecompiler::Branch,
&GLSLDecompiler::PushFlowStack,
&GLSLDecompiler::PopFlowStack,
@@ -1786,6 +1852,10 @@ private:
return GetDeclarationWithSuffix(static_cast<u32>(sampler.GetIndex()), "sampler");
}
std::string GetImage(const Image& image) const {
return GetDeclarationWithSuffix(static_cast<u32>(image.GetIndex()), "image");
}
void EmitIfdefIsBuffer(const Sampler& sampler) {
code.AddLine(fmt::format("#ifdef SAMPLER_{}_IS_BUFFER", sampler.GetIndex()));
}

7
src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
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@@ -935,6 +935,11 @@ private:
return {};
}
Id ImageStore(Operation operation) {
UNIMPLEMENTED();
return {};
}
Id Branch(Operation operation) {
const auto target = std::get_if<ImmediateNode>(&*operation[0]);
UNIMPLEMENTED_IF(!target);
@@ -1326,6 +1331,8 @@ private:
&SPIRVDecompiler::TextureQueryLod,
&SPIRVDecompiler::TexelFetch,
&SPIRVDecompiler::ImageStore,
&SPIRVDecompiler::Branch,
&SPIRVDecompiler::PushFlowStack,
&SPIRVDecompiler::PopFlowStack,

1
src/video_core/shader/decode.cpp
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@@ -169,6 +169,7 @@ u32 ShaderIR::DecodeInstr(NodeBlock& bb, u32 pc) {
{OpCode::Type::Conversion, &ShaderIR::DecodeConversion},
{OpCode::Type::Memory, &ShaderIR::DecodeMemory},
{OpCode::Type::Texture, &ShaderIR::DecodeTexture},
{OpCode::Type::Image, &ShaderIR::DecodeImage},
{OpCode::Type::FloatSetPredicate, &ShaderIR::DecodeFloatSetPredicate},
{OpCode::Type::IntegerSetPredicate, &ShaderIR::DecodeIntegerSetPredicate},
{OpCode::Type::HalfSetPredicate, &ShaderIR::DecodeHalfSetPredicate},

89
src/video_core/shader/decode/image.cpp Normal file
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@@ -0,0 +1,89 @@
// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include "common/assert.h"
#include "common/common_types.h"
#include "video_core/engines/shader_bytecode.h"
#include "video_core/shader/shader_ir.h"
namespace VideoCommon::Shader {
using Tegra::Shader::Instruction;
using Tegra::Shader::OpCode;
namespace {
std::size_t GetImageTypeNumCoordinates(Tegra::Shader::ImageType image_type) {
switch (image_type) {
case Tegra::Shader::ImageType::Texture1D:
case Tegra::Shader::ImageType::TextureBuffer:
return 1;
case Tegra::Shader::ImageType::Texture1DArray:
case Tegra::Shader::ImageType::Texture2D:
return 2;
case Tegra::Shader::ImageType::Texture2DArray:
case Tegra::Shader::ImageType::Texture3D:
return 3;
}
UNREACHABLE();
return 1;
}
} // Anonymous namespace
u32 ShaderIR::DecodeImage(NodeBlock& bb, u32 pc) {
const Instruction instr = {program_code[pc]};
const auto opcode = OpCode::Decode(instr);
switch (opcode->get().GetId()) {
case OpCode::Id::SUST: {
UNIMPLEMENTED_IF(instr.sust.mode != Tegra::Shader::SurfaceDataMode::P);
UNIMPLEMENTED_IF(instr.sust.image_type == Tegra::Shader::ImageType::TextureBuffer);
UNIMPLEMENTED_IF(instr.sust.out_of_bounds_store != Tegra::Shader::OutOfBoundsStore::Ignore);
UNIMPLEMENTED_IF(instr.sust.component_mask_selector != 0xf); // Ensure we have an RGBA store
std::vector<Node> values;
constexpr std::size_t hardcoded_size{4};
for (std::size_t i = 0; i < hardcoded_size; ++i) {
values.push_back(GetRegister(instr.gpr0.Value() + i));
}
std::vector<Node> coords;
const std::size_t num_coords{GetImageTypeNumCoordinates(instr.sust.image_type)};
for (std::size_t i = 0; i < num_coords; ++i) {
coords.push_back(GetRegister(instr.gpr8.Value() + i));
}
ASSERT(instr.sust.is_immediate);
const auto& image{GetImage(instr.image, instr.sust.image_type)};
MetaImage meta{image, values};
const Node store{Operation(OperationCode::ImageStore, meta, std::move(coords))};
bb.push_back(store);
break;
}
default:
UNIMPLEMENTED_MSG("Unhandled conversion instruction: {}", opcode->get().GetName());
}
return pc;
}
const Image& ShaderIR::GetImage(Tegra::Shader::Image image, Tegra::Shader::ImageType type) {
const auto offset{static_cast<std::size_t>(image.index.Value())};
// If this image has already been used, return the existing mapping.
const auto itr{std::find_if(used_images.begin(), used_images.end(),
[=](const Image& entry) { return entry.GetOffset() == offset; })};
if (itr != used_images.end()) {
ASSERT(itr->GetType() == type);
return *itr;
}
// Otherwise create a new mapping for this image.
const std::size_t next_index{used_images.size()};
const Image entry{offset, next_index, type};
return *used_images.emplace(entry).first;
}
} // namespace VideoCommon::Shader

42
src/video_core/shader/node.h
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@@ -146,6 +146,8 @@ enum class OperationCode {
TextureQueryLod, /// (MetaTexture, float[N] coords) -> float4
TexelFetch, /// (MetaTexture, int[N], int) -> float4
ImageStore, /// (MetaImage, float[N] coords) -> void
Branch, /// (uint branch_target) -> void
PushFlowStack, /// (uint branch_target) -> void
PopFlowStack, /// () -> void
@@ -263,6 +265,39 @@ private:
bool is_bindless{}; ///< Whether this sampler belongs to a bindless texture or not.
};
class Image {
public:
explicit Image(std::size_t offset, std::size_t index, Tegra::Shader::ImageType type)
: offset{offset}, index{index}, type{type}, is_bindless{false} {}
std::size_t GetOffset() const {
return offset;
}
std::size_t GetIndex() const {
return index;
}
Tegra::Shader::ImageType GetType() const {
return type;
}
bool IsBindless() const {
return is_bindless;
}
bool operator<(const Image& rhs) const {
return std::tie(offset, index, type, is_bindless) <
std::tie(rhs.offset, rhs.index, rhs.type, rhs.is_bindless);
}
private:
std::size_t offset{};
std::size_t index{};
Tegra::Shader::ImageType type{};
bool is_bindless{};
};
struct GlobalMemoryBase {
u32 cbuf_index{};
u32 cbuf_offset{};
@@ -289,8 +324,13 @@ struct MetaTexture {
u32 element{};
};
struct MetaImage {
const Image& image;
std::vector<Node> values;
};
/// Parameters that modify an operation but are not part of any particular operand
using Meta = std::variant<MetaArithmetic, MetaTexture, MetaStackClass, Tegra::Shader::HalfType>;
using Meta = std::variant<MetaArithmetic, MetaTexture, MetaImage, MetaStackClass, Tegra::Shader::HalfType>;
/// Holds any kind of operation that can be done in the IR
class OperationNode final {

9
src/video_core/shader/shader_ir.h
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@@ -104,6 +104,10 @@ public:
return used_samplers;
}
const std::set<Image>& GetImages() const {
return used_images;
}
const std::array<bool, Tegra::Engines::Maxwell3D::Regs::NumClipDistances>& GetClipDistances()
const {
return used_clip_distances;
@@ -154,6 +158,7 @@ private:
u32 DecodeConversion(NodeBlock& bb, u32 pc);
u32 DecodeMemory(NodeBlock& bb, u32 pc);
u32 DecodeTexture(NodeBlock& bb, u32 pc);
u32 DecodeImage(NodeBlock& bb, u32 pc);
u32 DecodeFloatSetPredicate(NodeBlock& bb, u32 pc);
u32 DecodeIntegerSetPredicate(NodeBlock& bb, u32 pc);
u32 DecodeHalfSetPredicate(NodeBlock& bb, u32 pc);
@@ -254,6 +259,9 @@ private:
Tegra::Shader::TextureType type, bool is_array,
bool is_shadow);
/// Accesses an image.
const Image& GetImage(Tegra::Shader::Image image, Tegra::Shader::ImageType type);
/// Extracts a sequence of bits from a node
Node BitfieldExtract(Node value, u32 offset, u32 bits);
@@ -329,6 +337,7 @@ private:
std::set<Tegra::Shader::Attribute::Index> used_output_attributes;
std::map<u32, ConstBuffer> used_cbufs;
std::set<Sampler> used_samplers;
std::set<Image> used_images;
std::array<bool, Tegra::Engines::Maxwell3D::Regs::NumClipDistances> used_clip_distances{};
std::map<GlobalMemoryBase, GlobalMemoryUsage> used_global_memory;
bool uses_physical_attributes{}; // Shader uses AL2P or physical attribute read/writes