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suyu/src/video_core/shader/decode/image.cpp
ReinUsesLisp fbc232426d video_core: Rearrange pixel format names 
Normalizes pixel format names to match Vulkan names. Previous to this
commit pixel formats had no convention, leading to confusion and
potential bugs.
2020-07-13 01:44:23 -03:00

528 lines
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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <vector>
#include <fmt/format.h>
#include "common/assert.h"
#include "common/bit_field.h"
#include "common/common_types.h"
#include "common/logging/log.h"
#include "video_core/engines/shader_bytecode.h"
#include "video_core/shader/node_helper.h"
#include "video_core/shader/shader_ir.h"
#include "video_core/textures/texture.h"
namespace VideoCommon::Shader {
using Tegra::Shader::Instruction;
using Tegra::Shader::OpCode;
using Tegra::Shader::PredCondition;
using Tegra::Shader::StoreType;
using Tegra::Texture::ComponentType;
using Tegra::Texture::TextureFormat;
using Tegra::Texture::TICEntry;
namespace {
ComponentType GetComponentType(Tegra::Engines::SamplerDescriptor descriptor,
std::size_t component) {
const TextureFormat format{descriptor.format};
switch (format) {
case TextureFormat::R16G16B16A16:
case TextureFormat::R32G32B32A32:
case TextureFormat::R32G32B32:
case TextureFormat::R32G32:
case TextureFormat::R16G16:
case TextureFormat::R32:
case TextureFormat::R16:
case TextureFormat::R8:
case TextureFormat::R1:
if (component == 0) {
return descriptor.r_type;
}
if (component == 1) {
return descriptor.g_type;
}
if (component == 2) {
return descriptor.b_type;
}
if (component == 3) {
return descriptor.a_type;
}
break;
case TextureFormat::A8R8G8B8:
if (component == 0) {
return descriptor.a_type;
}
if (component == 1) {
return descriptor.r_type;
}
if (component == 2) {
return descriptor.g_type;
}
if (component == 3) {
return descriptor.b_type;
}
break;
case TextureFormat::A2B10G10R10:
case TextureFormat::A4B4G4R4:
case TextureFormat::A5B5G5R1:
case TextureFormat::A1B5G5R5:
if (component == 0) {
return descriptor.a_type;
}
if (component == 1) {
return descriptor.b_type;
}
if (component == 2) {
return descriptor.g_type;
}
if (component == 3) {
return descriptor.r_type;
}
break;
case TextureFormat::R32_B24G8:
if (component == 0) {
return descriptor.r_type;
}
if (component == 1) {
return descriptor.b_type;
}
if (component == 2) {
return descriptor.g_type;
}
break;
case TextureFormat::B5G6R5:
case TextureFormat::B6G5R5:
case TextureFormat::B10G11R11:
if (component == 0) {
return descriptor.b_type;
}
if (component == 1) {
return descriptor.g_type;
}
if (component == 2) {
return descriptor.r_type;
}
break;
case TextureFormat::R24G8:
case TextureFormat::R8G24:
case TextureFormat::R8G8:
case TextureFormat::G4R4:
if (component == 0) {
return descriptor.g_type;
}
if (component == 1) {
return descriptor.r_type;
}
break;
}
UNIMPLEMENTED_MSG("Texture format not implemented={}", format);
return ComponentType::FLOAT;
}
bool IsComponentEnabled(std::size_t component_mask, std::size_t component) {
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)}.test(component);
}
u32 GetComponentSize(TextureFormat format, std::size_t component) {
switch (format) {
case TextureFormat::R32G32B32A32:
return 32;
case TextureFormat::R16G16B16A16:
return 16;
case TextureFormat::R32G32B32:
return component <= 2 ? 32 : 0;
case TextureFormat::R32G32:
return component <= 1 ? 32 : 0;
case TextureFormat::R16G16:
return component <= 1 ? 16 : 0;
case TextureFormat::R32:
return component == 0 ? 32 : 0;
case TextureFormat::R16:
return component == 0 ? 16 : 0;
case TextureFormat::R8:
return component == 0 ? 8 : 0;
case TextureFormat::R1:
return component == 0 ? 1 : 0;
case TextureFormat::A8R8G8B8:
return 8;
case TextureFormat::A2B10G10R10:
return (component == 3 || component == 2 || component == 1) ? 10 : 2;
case TextureFormat::A4B4G4R4:
return 4;
case TextureFormat::A5B5G5R1:
return (component == 0 || component == 1 || component == 2) ? 5 : 1;
case TextureFormat::A1B5G5R5:
return (component == 1 || component == 2 || component == 3) ? 5 : 1;
case TextureFormat::R32_B24G8:
if (component == 0) {
return 32;
}
if (component == 1) {
return 24;
}
if (component == 2) {
return 8;
}
return 0;
case TextureFormat::B5G6R5:
if (component == 0 || component == 2) {
return 5;
}
if (component == 1) {
return 6;
}
return 0;
case TextureFormat::B6G5R5:
if (component == 1 || component == 2) {
return 5;
}
if (component == 0) {
return 6;
}
return 0;
case TextureFormat::B10G11R11:
if (component == 1 || component == 2) {
return 11;
}
if (component == 0) {
return 10;
}
return 0;
case TextureFormat::R24G8:
if (component == 0) {
return 8;
}
if (component == 1) {
return 24;
}
return 0;
case TextureFormat::R8G24:
if (component == 0) {
return 8;
}
if (component == 1) {
return 24;
}
return 0;
case TextureFormat::R8G8:
return (component == 0 || component == 1) ? 8 : 0;
case TextureFormat::G4R4:
return (component == 0 || component == 1) ? 4 : 0;
}
UNIMPLEMENTED_MSG("Texture format not implemented={}", format);
return 0;
}
std::size_t GetImageComponentMask(TextureFormat format) {
constexpr u8 R = 0b0001;
constexpr u8 G = 0b0010;
constexpr u8 B = 0b0100;
constexpr u8 A = 0b1000;
switch (format) {
case TextureFormat::R32G32B32A32:
case TextureFormat::R16G16B16A16:
case TextureFormat::A8R8G8B8:
case TextureFormat::A2B10G10R10:
case TextureFormat::A4B4G4R4:
case TextureFormat::A5B5G5R1:
case TextureFormat::A1B5G5R5:
return std::size_t{R | G | B | A};
case TextureFormat::R32G32B32:
case TextureFormat::R32_B24G8:
case TextureFormat::B5G6R5:
case TextureFormat::B6G5R5:
case TextureFormat::B10G11R11:
return std::size_t{R | G | B};
case TextureFormat::R32G32:
case TextureFormat::R16G16:
case TextureFormat::R24G8:
case TextureFormat::R8G24:
case TextureFormat::R8G8:
case TextureFormat::G4R4:
return std::size_t{R | G};
case TextureFormat::R32:
case TextureFormat::R16:
case TextureFormat::R8:
case TextureFormat::R1:
return std::size_t{R};
}
UNIMPLEMENTED_MSG("Texture format not implemented={}", format);
return std::size_t{R | G | B | A};
}
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
std::pair<Node, bool> ShaderIR::GetComponentValue(ComponentType component_type, u32 component_size,
Node original_value) {
switch (component_type) {
case ComponentType::SNORM: {
// range [-1.0, 1.0]
auto cnv_value = Operation(OperationCode::FMul, original_value,
Immediate(static_cast<float>(1 << component_size) / 2.f - 1.f));
cnv_value = Operation(OperationCode::ICastFloat, std::move(cnv_value));
return {BitfieldExtract(std::move(cnv_value), 0, component_size), true};
}
case ComponentType::SINT:
case ComponentType::UNORM: {
bool is_signed = component_type == ComponentType::SINT;
// range [0.0, 1.0]
auto cnv_value = Operation(OperationCode::FMul, original_value,
Immediate(static_cast<float>(1 << component_size) - 1.f));
return {SignedOperation(OperationCode::ICastFloat, is_signed, std::move(cnv_value)),
is_signed};
}
case ComponentType::UINT: // range [0, (1 << component_size) - 1]
return {std::move(original_value), false};
case ComponentType::FLOAT:
if (component_size == 16) {
return {Operation(OperationCode::HCastFloat, original_value), true};
} else {
return {std::move(original_value), true};
}
default:
UNIMPLEMENTED_MSG("Unimplemented component type={}", component_type);
return {std::move(original_value), true};
}
}
u32 ShaderIR::DecodeImage(NodeBlock& bb, u32 pc) {
const Instruction instr = {program_code[pc]};
const auto opcode = OpCode::Decode(instr);
const auto GetCoordinates = [this, instr](Tegra::Shader::ImageType image_type) {
std::vector<Node> coords;
const std::size_t num_coords{GetImageTypeNumCoordinates(image_type)};
coords.reserve(num_coords);
for (std::size_t i = 0; i < num_coords; ++i) {
coords.push_back(GetRegister(instr.gpr8.Value() + i));
}
return coords;
};
switch (opcode->get().GetId()) {
case OpCode::Id::SULD: {
UNIMPLEMENTED_IF(instr.suldst.out_of_bounds_store !=
Tegra::Shader::OutOfBoundsStore::Ignore);
const auto type{instr.suldst.image_type};
auto& image{instr.suldst.is_immediate ? GetImage(instr.image, type)
: GetBindlessImage(instr.gpr39, type)};
image.MarkRead();
if (instr.suldst.mode == Tegra::Shader::SurfaceDataMode::P) {
u32 indexer = 0;
for (u32 element = 0; element < 4; ++element) {
if (!instr.suldst.IsComponentEnabled(element)) {
continue;
}
MetaImage meta{image, {}, element};
Node value = Operation(OperationCode::ImageLoad, meta, GetCoordinates(type));
SetTemporary(bb, indexer++, std::move(value));
}
for (u32 i = 0; i < indexer; ++i) {
SetRegister(bb, instr.gpr0.Value() + i, GetTemporary(i));
}
} else if (instr.suldst.mode == Tegra::Shader::SurfaceDataMode::D_BA) {
UNIMPLEMENTED_IF(instr.suldst.GetStoreDataLayout() != StoreType::Bits32 &&
instr.suldst.GetStoreDataLayout() != StoreType::Bits64);
auto descriptor = [this, instr] {
std::optional<Tegra::Engines::SamplerDescriptor> descriptor;
if (instr.suldst.is_immediate) {
descriptor =
registry.ObtainBoundSampler(static_cast<u32>(instr.image.index.Value()));
} else {
const Node image_register = GetRegister(instr.gpr39);
const auto result = TrackCbuf(image_register, global_code,
static_cast<s64>(global_code.size()));
const auto buffer = std::get<1>(result);
const auto offset = std::get<2>(result);
descriptor = registry.ObtainBindlessSampler(buffer, offset);
}
if (!descriptor) {
UNREACHABLE_MSG("Failed to obtain image descriptor");
}
return *descriptor;
}();
const auto comp_mask = GetImageComponentMask(descriptor.format);
switch (instr.suldst.GetStoreDataLayout()) {
case StoreType::Bits32:
case StoreType::Bits64: {
u32 indexer = 0;
u32 shifted_counter = 0;
Node value = Immediate(0);
for (u32 element = 0; element < 4; ++element) {
if (!IsComponentEnabled(comp_mask, element)) {
continue;
}
const auto component_type = GetComponentType(descriptor, element);
const auto component_size = GetComponentSize(descriptor.format, element);
MetaImage meta{image, {}, element};
auto [converted_value, is_signed] = GetComponentValue(
component_type, component_size,
Operation(OperationCode::ImageLoad, meta, GetCoordinates(type)));
// shift element to correct position
const auto shifted = shifted_counter;
if (shifted > 0) {
converted_value =
SignedOperation(OperationCode::ILogicalShiftLeft, is_signed,
std::move(converted_value), Immediate(shifted));
}
shifted_counter += component_size;
// add value into result
value = Operation(OperationCode::UBitwiseOr, value, std::move(converted_value));
// if we shifted enough for 1 byte -> we save it into temp
if (shifted_counter >= 32) {
SetTemporary(bb, indexer++, std::move(value));
// reset counter and value to prepare pack next byte
value = Immediate(0);
shifted_counter = 0;
}
}
for (u32 i = 0; i < indexer; ++i) {
SetRegister(bb, instr.gpr0.Value() + i, GetTemporary(i));
}
break;
}
default:
UNREACHABLE();
break;
}
}
break;
}
case OpCode::Id::SUST: {
UNIMPLEMENTED_IF(instr.suldst.mode != Tegra::Shader::SurfaceDataMode::P);
UNIMPLEMENTED_IF(instr.suldst.out_of_bounds_store !=
Tegra::Shader::OutOfBoundsStore::Ignore);
UNIMPLEMENTED_IF(instr.suldst.component_mask_selector != 0xf); // Ensure we have RGBA
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));
}
const auto type{instr.suldst.image_type};
auto& image{instr.suldst.is_immediate ? GetImage(instr.image, type)
: GetBindlessImage(instr.gpr39, type)};
image.MarkWrite();
MetaImage meta{image, std::move(values)};
bb.push_back(Operation(OperationCode::ImageStore, meta, GetCoordinates(type)));
break;
}
case OpCode::Id::SUATOM: {
UNIMPLEMENTED_IF(instr.suatom_d.is_ba != 0);
const OperationCode operation_code = [instr] {
switch (instr.suatom_d.operation_type) {
case Tegra::Shader::ImageAtomicOperationType::S32:
case Tegra::Shader::ImageAtomicOperationType::U32:
switch (instr.suatom_d.operation) {
case Tegra::Shader::ImageAtomicOperation::Add:
return OperationCode::AtomicImageAdd;
case Tegra::Shader::ImageAtomicOperation::And:
return OperationCode::AtomicImageAnd;
case Tegra::Shader::ImageAtomicOperation::Or:
return OperationCode::AtomicImageOr;
case Tegra::Shader::ImageAtomicOperation::Xor:
return OperationCode::AtomicImageXor;
case Tegra::Shader::ImageAtomicOperation::Exch:
return OperationCode::AtomicImageExchange;
}
default:
break;
}
UNIMPLEMENTED_MSG("Unimplemented operation={}, type={}",
static_cast<u64>(instr.suatom_d.operation.Value()),
static_cast<u64>(instr.suatom_d.operation_type.Value()));
return OperationCode::AtomicImageAdd;
}();
Node value = GetRegister(instr.gpr0);
const auto type = instr.suatom_d.image_type;
auto& image = GetImage(instr.image, type);
image.MarkAtomic();
MetaImage meta{image, {std::move(value)}};
SetRegister(bb, instr.gpr0, Operation(operation_code, meta, GetCoordinates(type)));
break;
}
default:
UNIMPLEMENTED_MSG("Unhandled image instruction: {}", opcode->get().GetName());
}
return pc;
}
Image& ShaderIR::GetImage(Tegra::Shader::Image image, Tegra::Shader::ImageType type) {
const auto offset = static_cast<u32>(image.index.Value());
const auto it = std::find_if(std::begin(used_images), std::end(used_images),
[offset](const Image& entry) { return entry.offset == offset; });
if (it != std::end(used_images)) {
ASSERT(!it->is_bindless && it->type == type);
return *it;
}
const auto next_index = static_cast<u32>(used_images.size());
return used_images.emplace_back(next_index, offset, type);
}
Image& ShaderIR::GetBindlessImage(Tegra::Shader::Register reg, Tegra::Shader::ImageType type) {
const Node image_register = GetRegister(reg);
const auto result =
TrackCbuf(image_register, global_code, static_cast<s64>(global_code.size()));
const auto buffer = std::get<1>(result);
const auto offset = std::get<2>(result);
const auto it = std::find_if(std::begin(used_images), std::end(used_images),
[buffer, offset](const Image& entry) {
return entry.buffer == buffer && entry.offset == offset;
});
if (it != std::end(used_images)) {
ASSERT(it->is_bindless && it->type == type);
return *it;
}
const auto next_index = static_cast<u32>(used_images.size());
return used_images.emplace_back(next_index, offset, buffer, type);
}
} // namespace VideoCommon::Shader
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