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Merge pull request #3039 from ReinUsesLisp/cleanup-samplers

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shader/node: Unpack bindless texture encoding
This commit is contained in:
Rodrigo Locatti 2019-11-06 04:54:11 +00:00 committed by GitHub
commit 654b77d2ec
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GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 118 additions and 144 deletions
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19
src/video_core/renderer_opengl/gl_rasterizer.cpp
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@ -935,10 +935,9 @@ TextureBufferUsage RasterizerOpenGL::SetupDrawTextures(Maxwell::ShaderStage stag
if (!entry.IsBindless()) {
return maxwell3d.GetStageTexture(stage, entry.GetOffset());
}
const auto cbuf = entry.GetBindlessCBuf();
Tegra::Texture::TextureHandle tex_handle;
Tegra::Engines::ShaderType shader_type = static_cast<Tegra::Engines::ShaderType>(stage);
tex_handle.raw = maxwell3d.AccessConstBuffer32(shader_type, cbuf.first, cbuf.second);
const auto shader_type = static_cast<Tegra::Engines::ShaderType>(stage);
const Tegra::Texture::TextureHandle tex_handle =
maxwell3d.AccessConstBuffer32(shader_type, entry.GetBuffer(), entry.GetOffset());
return maxwell3d.GetTextureInfo(tex_handle);
}();
@ -966,10 +965,8 @@ TextureBufferUsage RasterizerOpenGL::SetupComputeTextures(const Shader& kernel)
if (!entry.IsBindless()) {
return compute.GetTexture(entry.GetOffset());
}
const auto cbuf = entry.GetBindlessCBuf();
Tegra::Texture::TextureHandle tex_handle;
tex_handle.raw = compute.AccessConstBuffer32(Tegra::Engines::ShaderType::Compute,
cbuf.first, cbuf.second);
const Tegra::Texture::TextureHandle tex_handle = compute.AccessConstBuffer32(
Tegra::Engines::ShaderType::Compute, entry.GetBuffer(), entry.GetOffset());
return compute.GetTextureInfo(tex_handle);
}();
@ -1012,10 +1009,8 @@ void RasterizerOpenGL::SetupComputeImages(const Shader& shader) {
if (!entry.IsBindless()) {
return compute.GetTexture(entry.GetOffset()).tic;
}
const auto cbuf = entry.GetBindlessCBuf();
Tegra::Texture::TextureHandle tex_handle;
tex_handle.raw = compute.AccessConstBuffer32(Tegra::Engines::ShaderType::Compute,
cbuf.first, cbuf.second);
const Tegra::Texture::TextureHandle tex_handle = compute.AccessConstBuffer32(
Tegra::Engines::ShaderType::Compute, entry.GetBuffer(), entry.GetOffset());
return compute.GetTextureInfo(tex_handle).tic;
}();
SetupImage(bindpoint, tic, entry);

14
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
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@ -735,7 +735,7 @@ private:
void DeclareImages() {
const auto& images{ir.GetImages()};
for (const auto& [offset, image] : images) {
for (const auto& image : images) {
std::string qualifier = "coherent volatile";
if (image.IsRead() && !image.IsWritten()) {
qualifier += " readonly";
@ -2466,16 +2466,16 @@ ShaderEntries GetEntries(const VideoCommon::Shader::ShaderIR& ir) {
entries.const_buffers.emplace_back(cbuf.second.GetMaxOffset(), cbuf.second.IsIndirect(),
cbuf.first);
}
for (const auto& sampler : ir.GetSamplers()) {
entries.samplers.emplace_back(sampler);
}
for (const auto& [offset, image] : ir.GetImages()) {
entries.images.emplace_back(image);
}
for (const auto& [base, usage] : ir.GetGlobalMemory()) {
entries.global_memory_entries.emplace_back(base.cbuf_index, base.cbuf_offset, usage.is_read,
usage.is_written);
}
for (const auto& sampler : ir.GetSamplers()) {
entries.samplers.emplace_back(sampler);
}
for (const auto& image : ir.GetImages()) {
entries.images.emplace_back(image);
}
entries.clip_distances = ir.GetClipDistances();
entries.shader_length = ir.GetLength();
return entries;

5
src/video_core/renderer_opengl/gl_shader_decompiler.h
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@ -82,10 +82,9 @@ private:
struct ShaderEntries {
std::vector<ConstBufferEntry> const_buffers;
std::vector<SamplerEntry> samplers;
std::vector<SamplerEntry> bindless_samplers;
std::vector<ImageEntry> images;
std::vector<GlobalMemoryEntry> global_memory_entries;
std::vector<SamplerEntry> samplers;
std::vector<ImageEntry> images;
std::array<bool, Maxwell::NumClipDistances> clip_distances{};
std::size_t shader_length{};
};

48
src/video_core/shader/decode/image.cpp
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@ -143,39 +143,37 @@ u32 ShaderIR::DecodeImage(NodeBlock& bb, u32 pc) {
}
Image& ShaderIR::GetImage(Tegra::Shader::Image image, Tegra::Shader::ImageType type) {
const auto offset{static_cast<std::size_t>(image.index.Value())};
if (const auto existing_image = TryUseExistingImage(offset, type)) {
return *existing_image;
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.GetOffset() == offset; });
if (it != std::end(used_images)) {
ASSERT(!it->IsBindless() && it->GetType() == it->GetType());
return *it;
}
const std::size_t next_index{used_images.size()};
return used_images.emplace(offset, Image{offset, next_index, type}).first->second;
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 [base_image, cbuf_index, cbuf_offset]{
TrackCbuf(image_register, global_code, static_cast<s64>(global_code.size()))};
const auto cbuf_key{(static_cast<u64>(cbuf_index) << 32) | static_cast<u64>(cbuf_offset)};
const Node image_register = GetRegister(reg);
const auto [base_image, buffer, offset] =
TrackCbuf(image_register, global_code, static_cast<s64>(global_code.size()));
if (const auto image = TryUseExistingImage(cbuf_key, type)) {
return *image;
const auto it =
std::find_if(std::begin(used_images), std::end(used_images),
[buffer = buffer, offset = offset](const Image& entry) {
return entry.GetBuffer() == buffer && entry.GetOffset() == offset;
});
if (it != std::end(used_images)) {
ASSERT(it->IsBindless() && it->GetType() == it->GetType());
return *it;
}
const std::size_t next_index{used_images.size()};
return used_images.emplace(cbuf_key, Image{cbuf_index, cbuf_offset, next_index, type})
.first->second;
}
Image* ShaderIR::TryUseExistingImage(u64 offset, Tegra::Shader::ImageType type) {
auto it = used_images.find(offset);
if (it == used_images.end()) {
return nullptr;
}
auto& image = it->second;
ASSERT(image.GetType() == type);
return &image;
const auto next_index = static_cast<u32>(used_images.size());
return used_images.emplace_back(next_index, offset, buffer, type);
}
} // namespace VideoCommon::Shader

59
src/video_core/shader/decode/texture.cpp
View File

@ -262,7 +262,7 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
break;
}
case OpCode::Id::TLDS: {
const Tegra::Shader::TextureType texture_type{instr.tlds.GetTextureType()};
const TextureType texture_type{instr.tlds.GetTextureType()};
const bool is_array{instr.tlds.IsArrayTexture()};
UNIMPLEMENTED_IF_MSG(instr.tlds.UsesMiscMode(TextureMiscMode::AOFFI),
@ -293,77 +293,80 @@ const Sampler& ShaderIR::GetSampler(const Tegra::Shader::Sampler& sampler,
std::optional<SamplerInfo> sampler_info) {
const auto offset = static_cast<u32>(sampler.index.Value());
Tegra::Shader::TextureType type;
TextureType type;
bool is_array;
bool is_shadow;
if (sampler_info) {
type = sampler_info->type;
is_array = sampler_info->is_array;
is_shadow = sampler_info->is_shadow;
} else if (auto sampler = locker.ObtainBoundSampler(offset); sampler) {
} else if (const auto sampler = locker.ObtainBoundSampler(offset)) {
type = sampler->texture_type.Value();
is_array = sampler->is_array.Value() != 0;
is_shadow = sampler->is_shadow.Value() != 0;
} else {
type = Tegra::Shader::TextureType::Texture2D;
LOG_WARNING(HW_GPU, "Unknown sampler info");
type = TextureType::Texture2D;
is_array = false;
is_shadow = false;
}
// If this sampler has already been used, return the existing mapping.
const auto itr =
const auto it =
std::find_if(used_samplers.begin(), used_samplers.end(),
[&](const Sampler& entry) { return entry.GetOffset() == offset; });
if (itr != used_samplers.end()) {
ASSERT(itr->GetType() == type && itr->IsArray() == is_array &&
itr->IsShadow() == is_shadow);
return *itr;
[offset](const Sampler& entry) { return entry.GetOffset() == offset; });
if (it != used_samplers.end()) {
ASSERT(!it->IsBindless() && it->GetType() == type && it->IsArray() == is_array &&
it->IsShadow() == is_shadow);
return *it;
}
// Otherwise create a new mapping for this sampler
const std::size_t next_index = used_samplers.size();
const Sampler entry{offset, next_index, type, is_array, is_shadow};
return *used_samplers.emplace(entry).first;
} // namespace VideoCommon::Shader
const auto next_index = static_cast<u32>(used_samplers.size());
return used_samplers.emplace_back(Sampler(next_index, offset, type, is_array, is_shadow));
}
const Sampler& ShaderIR::GetBindlessSampler(const Tegra::Shader::Register& reg,
std::optional<SamplerInfo> sampler_info) {
const Node sampler_register = GetRegister(reg);
const auto [base_sampler, cbuf_index, cbuf_offset] =
const auto [base_sampler, buffer, offset] =
TrackCbuf(sampler_register, global_code, static_cast<s64>(global_code.size()));
ASSERT(base_sampler != nullptr);
const auto cbuf_key = (static_cast<u64>(cbuf_index) << 32) | static_cast<u64>(cbuf_offset);
Tegra::Shader::TextureType type;
TextureType type;
bool is_array;
bool is_shadow;
if (sampler_info) {
type = sampler_info->type;
is_array = sampler_info->is_array;
is_shadow = sampler_info->is_shadow;
} else if (auto sampler = locker.ObtainBindlessSampler(cbuf_index, cbuf_offset); sampler) {
} else if (const auto sampler = locker.ObtainBindlessSampler(buffer, offset)) {
type = sampler->texture_type.Value();
is_array = sampler->is_array.Value() != 0;
is_shadow = sampler->is_shadow.Value() != 0;
} else {
type = Tegra::Shader::TextureType::Texture2D;
LOG_WARNING(HW_GPU, "Unknown sampler info");
type = TextureType::Texture2D;
is_array = false;
is_shadow = false;
}
// If this sampler has already been used, return the existing mapping.
const auto itr =
const auto it =
std::find_if(used_samplers.begin(), used_samplers.end(),
[&](const Sampler& entry) { return entry.GetOffset() == cbuf_key; });
if (itr != used_samplers.end()) {
ASSERT(itr->GetType() == type && itr->IsArray() == is_array &&
itr->IsShadow() == is_shadow);
return *itr;
[buffer = buffer, offset = offset](const Sampler& entry) {
return entry.GetBuffer() == buffer && entry.GetOffset() == offset;
});
if (it != used_samplers.end()) {
ASSERT(it->IsBindless() && it->GetType() == type && it->IsArray() == is_array &&
it->IsShadow() == is_shadow);
return *it;
}
// Otherwise create a new mapping for this sampler
const std::size_t next_index = used_samplers.size();
const Sampler entry{cbuf_index, cbuf_offset, next_index, type, is_array, is_shadow};
return *used_samplers.emplace(entry).first;
const auto next_index = static_cast<u32>(used_samplers.size());
return used_samplers.emplace_back(
Sampler(next_index, offset, buffer, type, is_array, is_shadow));
}
void ShaderIR::WriteTexInstructionFloat(NodeBlock& bb, Instruction instr, const Node4& components) {

103
src/video_core/shader/node.h
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@ -230,62 +230,49 @@ using NodeBlock = std::vector<Node>;
class Sampler {
public:
/// This constructor is for bound samplers
explicit Sampler(std::size_t offset, std::size_t index, Tegra::Shader::TextureType type,
bool is_array, bool is_shadow)
: offset{offset}, index{index}, type{type}, is_array{is_array}, is_shadow{is_shadow},
is_bindless{false} {}
constexpr explicit Sampler(u32 index, u32 offset, Tegra::Shader::TextureType type,
bool is_array, bool is_shadow)
: index{index}, offset{offset}, type{type}, is_array{is_array}, is_shadow{is_shadow} {}
/// This constructor is for bindless samplers
explicit Sampler(u32 cbuf_index, u32 cbuf_offset, std::size_t index,
Tegra::Shader::TextureType type, bool is_array, bool is_shadow)
: offset{(static_cast<u64>(cbuf_index) << 32) | cbuf_offset}, index{index}, type{type},
is_array{is_array}, is_shadow{is_shadow}, is_bindless{true} {}
constexpr explicit Sampler(u32 index, u32 offset, u32 buffer, Tegra::Shader::TextureType type,
bool is_array, bool is_shadow)
: index{index}, offset{offset}, buffer{buffer}, type{type}, is_array{is_array},
is_shadow{is_shadow}, is_bindless{true} {}
/// This constructor is for serialization/deserialization
explicit Sampler(std::size_t offset, std::size_t index, Tegra::Shader::TextureType type,
bool is_array, bool is_shadow, bool is_bindless)
: offset{offset}, index{index}, type{type}, is_array{is_array}, is_shadow{is_shadow},
is_bindless{is_bindless} {}
std::size_t GetOffset() const {
return offset;
}
std::size_t GetIndex() const {
constexpr u32 GetIndex() const {
return index;
}
Tegra::Shader::TextureType GetType() const {
constexpr u32 GetOffset() const {
return offset;
}
constexpr u32 GetBuffer() const {
return buffer;
}
constexpr Tegra::Shader::TextureType GetType() const {
return type;
}
bool IsArray() const {
constexpr bool IsArray() const {
return is_array;
}
bool IsShadow() const {
constexpr bool IsShadow() const {
return is_shadow;
}
bool IsBindless() const {
constexpr bool IsBindless() const {
return is_bindless;
}
std::pair<u32, u32> GetBindlessCBuf() const {
return {static_cast<u32>(offset >> 32), static_cast<u32>(offset)};
}
bool operator<(const Sampler& rhs) const {
return std::tie(index, offset, type, is_array, is_shadow, is_bindless) <
std::tie(rhs.index, rhs.offset, rhs.type, rhs.is_array, rhs.is_shadow,
rhs.is_bindless);
}
private:
/// Offset in TSC memory from which to read the sampler object, as specified by the sampling
/// instruction.
std::size_t offset{};
std::size_t index{}; ///< Value used to index into the generated GLSL sampler array.
u32 index{}; ///< Emulated index given for the this sampler.
u32 offset{}; ///< Offset in the const buffer from where the sampler is being read.
u32 buffer{}; ///< Buffer where the bindless sampler is being read (unused on bound samplers).
Tegra::Shader::TextureType type{}; ///< The type used to sample this texture (Texture2D, etc)
bool is_array{}; ///< Whether the texture is being sampled as an array texture or not.
bool is_shadow{}; ///< Whether the texture is being sampled as a depth texture or not.
@ -294,18 +281,13 @@ private:
class Image final {
public:
constexpr explicit Image(std::size_t offset, std::size_t index, Tegra::Shader::ImageType type)
: offset{offset}, index{index}, type{type}, is_bindless{false} {}
/// This constructor is for bound images
constexpr explicit Image(u32 index, u32 offset, Tegra::Shader::ImageType type)
: index{index}, offset{offset}, type{type} {}
constexpr explicit Image(u32 cbuf_index, u32 cbuf_offset, std::size_t index,
Tegra::Shader::ImageType type)
: offset{(static_cast<u64>(cbuf_index) << 32) | cbuf_offset}, index{index}, type{type},
is_bindless{true} {}
constexpr explicit Image(std::size_t offset, std::size_t index, Tegra::Shader::ImageType type,
bool is_bindless, bool is_written, bool is_read, bool is_atomic)
: offset{offset}, index{index}, type{type}, is_bindless{is_bindless},
is_written{is_written}, is_read{is_read}, is_atomic{is_atomic} {}
/// This constructor is for bindless samplers
constexpr explicit Image(u32 index, u32 offset, u32 buffer, Tegra::Shader::ImageType type)
: index{index}, offset{offset}, buffer{buffer}, type{type}, is_bindless{true} {}
void MarkWrite() {
is_written = true;
@ -321,12 +303,16 @@ public:
is_atomic = true;
}
constexpr std::size_t GetOffset() const {
constexpr u32 GetIndex() const {
return index;
}
constexpr u32 GetOffset() const {
return offset;
}
constexpr std::size_t GetIndex() const {
return index;
constexpr u32 GetBuffer() const {
return buffer;
}
constexpr Tegra::Shader::ImageType GetType() const {
@ -349,18 +335,11 @@ public:
return is_atomic;
}
constexpr std::pair<u32, u32> GetBindlessCBuf() const {
return {static_cast<u32>(offset >> 32), static_cast<u32>(offset)};
}
constexpr 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:
u64 offset{};
std::size_t index{};
u32 index{};
u32 offset{};
u32 buffer{};
Tegra::Shader::ImageType type{};
bool is_bindless{};
bool is_written{};

12
src/video_core/shader/shader_ir.h
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@ -5,6 +5,7 @@
#pragma once
#include <array>
#include <list>
#include <map>
#include <optional>
#include <set>
@ -95,11 +96,11 @@ public:
return used_cbufs;
}
const std::set<Sampler>& GetSamplers() const {
const std::list<Sampler>& GetSamplers() const {
return used_samplers;
}
const std::map<u64, Image>& GetImages() const {
const std::list<Image>& GetImages() const {
return used_images;
}
@ -316,9 +317,6 @@ private:
/// Access a bindless image sampler.
Image& GetBindlessImage(Tegra::Shader::Register reg, Tegra::Shader::ImageType type);
/// Tries to access an existing image, updating it's state as needed
Image* TryUseExistingImage(u64 offset, Tegra::Shader::ImageType type);
/// Extracts a sequence of bits from a node
Node BitfieldExtract(Node value, u32 offset, u32 bits);
@ -402,8 +400,8 @@ private:
std::set<Tegra::Shader::Attribute::Index> used_input_attributes;
std::set<Tegra::Shader::Attribute::Index> used_output_attributes;
std::map<u32, ConstBuffer> used_cbufs;
std::set<Sampler> used_samplers;
std::map<u64, Image> used_images;
std::list<Sampler> used_samplers;
std::list<Image> used_images;
std::array<bool, Tegra::Engines::Maxwell3D::Regs::NumClipDistances> used_clip_distances{};
std::map<GlobalMemoryBase, GlobalMemoryUsage> used_global_memory;
bool uses_layer{};

2
src/video_core/textures/texture.h
View File

@ -132,6 +132,8 @@ enum class SwizzleSource : u32 {
};
union TextureHandle {
TextureHandle(u32 raw) : raw{raw} {}
u32 raw;
BitField<0, 20, u32> tic_id;
BitField<20, 12, u32> tsc_id;