franklinblanco
/
yuzu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

shader: Implement transform feedbacks and define file format

This commit is contained in:
ReinUsesLisp 2021-04-14 01:04:59 -03:00 committed by ameerj
parent a83579b50a
commit b126987c59
11 changed files with 272 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
src/shader_recompiler/backend/spirv/emit_context.cpp
View File

@ -135,6 +135,45 @@ Id DefineOutput(EmitContext& ctx, Id type, std::optional<spv::BuiltIn> builtin =
return DefineVariable(ctx, type, builtin, spv::StorageClass::Output);
}
void DefineGenericOutput(EmitContext& ctx, size_t index) {
static constexpr std::string_view swizzle{"xyzw"};
const size_t base_attr_index{static_cast<size_t>(IR::Attribute::Generic0X) + index * 4};
u32 element{0};
while (element < 4) {
const u32 remainder{4 - element};
const TransformFeedbackVarying* xfb_varying{};
if (!ctx.profile.xfb_varyings.empty()) {
xfb_varying = &ctx.profile.xfb_varyings[base_attr_index + element];
xfb_varying = xfb_varying && xfb_varying->components > 0 ? xfb_varying : nullptr;
}
const u32 num_components{xfb_varying ? xfb_varying->components : remainder};
const Id id{DefineOutput(ctx, ctx.F32[num_components])};
ctx.Decorate(id, spv::Decoration::Location, static_cast<u32>(index));
if (element > 0) {
ctx.Decorate(id, spv::Decoration::Component, element);
}
if (xfb_varying) {
ctx.Decorate(id, spv::Decoration::XfbBuffer, xfb_varying->buffer);
ctx.Decorate(id, spv::Decoration::XfbStride, xfb_varying->stride);
ctx.Decorate(id, spv::Decoration::Offset, xfb_varying->offset);
}
if (num_components < 4 || element > 0) {
ctx.Name(id, fmt::format("out_attr{}", index));
} else {
const std::string_view subswizzle{swizzle.substr(element, num_components)};
ctx.Name(id, fmt::format("out_attr{}_{}", index, subswizzle));
}
const GenericElementInfo info{
.id = id,
.first_element = element,
.num_components = num_components,
};
std::fill_n(ctx.output_generics[index].begin(), num_components, info);
element += num_components;
}
}
Id GetAttributeType(EmitContext& ctx, AttributeType type) {
switch (type) {
case AttributeType::Float:
@ -663,12 +702,15 @@ void EmitContext::DefineAttributeMemAccess(const Info& info) {
OpReturn();
++label_index;
}
for (size_t i = 0; i < info.stores_generics.size(); i++) {
for (size_t i = 0; i < info.stores_generics.size(); ++i) {
if (!info.stores_generics[i]) {
continue;
}
if (output_generics[i][0].num_components != 4) {
throw NotImplementedException("Physical stores and transform feedbacks");
}
AddLabel(labels[label_index]);
const Id generic_id{output_generics.at(i)};
const Id generic_id{output_generics[i][0].id};
const Id pointer{OpAccessChain(output_f32, generic_id, masked_index)};
OpStore(pointer, store_value);
OpReturn();
@ -1015,11 +1057,9 @@ void EmitContext::DefineOutputs(const Info& info) {
}
viewport_index = DefineOutput(*this, U32[1], spv::BuiltIn::ViewportIndex);
}
for (size_t i = 0; i < info.stores_generics.size(); ++i) {
if (info.stores_generics[i]) {
output_generics[i] = DefineOutput(*this, F32[4]);
Decorate(output_generics[i], spv::Decoration::Location, static_cast<u32>(i));
Name(output_generics[i], fmt::format("out_attr{}", i));
for (size_t index = 0; index < info.stores_generics.size(); ++index) {
if (info.stores_generics[index]) {
DefineGenericOutput(*this, index);
}
}
if (stage == Stage::Fragment) {

8
src/shader_recompiler/backend/spirv/emit_context.h
View File

@ -79,6 +79,12 @@ struct StorageDefinitions {
Id U32x4{};
};
struct GenericElementInfo {
Id id{};
u32 first_element{};
u32 num_components{};
};
class EmitContext final : public Sirit::Module {
public:
explicit EmitContext(const Profile& profile, IR::Program& program, u32& binding);
@ -189,7 +195,7 @@ public:
Id output_point_size{};
Id output_position{};
std::array<Id, 32> output_generics{};
std::array<std::array<GenericElementInfo, 4>, 32> output_generics{};
std::array<Id, 8> frag_color{};
Id frag_depth{};

3
src/shader_recompiler/backend/spirv/emit_spirv.cpp
View File

@ -288,6 +288,9 @@ void SetupCapabilities(const Profile& profile, const Info& info, EmitContext& ct
if (info.uses_typeless_image_writes) {
ctx.AddCapability(spv::Capability::StorageImageWriteWithoutFormat);
}
if (!ctx.profile.xfb_varyings.empty()) {
ctx.AddCapability(spv::Capability::TransformFeedback);
}
// TODO: Track this usage
ctx.AddCapability(spv::Capability::ImageGatherExtended);
ctx.AddCapability(spv::Capability::ImageQuery);

19
src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
View File

@ -40,11 +40,17 @@ Id AttrPointer(EmitContext& ctx, Id pointer_type, Id vertex, Id base, Args&&...
}
std::optional<Id> OutputAttrPointer(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.output_f32, ctx.output_generics.at(index), element_id());
const u32 element{IR::GenericAttributeElement(attr)};
const GenericElementInfo& info{ctx.output_generics.at(index).at(element)};
if (info.num_components == 1) {
return info.id;
} else {
const u32 index_element{element - info.first_element};
const Id index_id{ctx.Constant(ctx.U32[1], index_element)};
return ctx.OpAccessChain(ctx.output_f32, info.id, index_id);
}
}
switch (attr) {
case IR::Attribute::PointSize:
@ -52,8 +58,11 @@ std::optional<Id> OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
case IR::Attribute::PositionX:
case IR::Attribute::PositionY:
case IR::Attribute::PositionZ:
case IR::Attribute::PositionW:
return ctx.OpAccessChain(ctx.output_f32, ctx.output_position, element_id());
case IR::Attribute::PositionW: {
const u32 element{static_cast<u32>(attr) % 4};
const Id element_id{ctx.Constant(ctx.U32[1], element)};
return ctx.OpAccessChain(ctx.output_f32, ctx.output_position, element_id);
}
case IR::Attribute::ClipDistance0:
case IR::Attribute::ClipDistance1:
case IR::Attribute::ClipDistance2:

29
src/shader_recompiler/backend/spirv/emit_spirv_special.cpp
View File

@ -22,6 +22,21 @@ void SetFixedPipelinePointSize(EmitContext& ctx) {
ctx.OpStore(ctx.output_point_size, ctx.Constant(ctx.F32[1], point_size));
}
}
Id DefaultVarying(EmitContext& ctx, u32 num_components, u32 element, Id zero, Id one,
Id default_vector) {
switch (num_components) {
case 1:
return element == 3 ? one : zero;
case 2:
return ctx.ConstantComposite(ctx.F32[2], zero, element + 1 == 3 ? one : zero);
case 3:
return ctx.ConstantComposite(ctx.F32[3], zero, zero, element + 2 == 3 ? one : zero);
case 4:
return default_vector;
}
throw InvalidArgument("Bad element");
}
} // Anonymous namespace
void EmitPrologue(EmitContext& ctx) {
@ -30,9 +45,17 @@ void EmitPrologue(EmitContext& ctx) {
const Id one{ctx.Constant(ctx.F32[1], 1.0f)};
const Id default_vector{ctx.ConstantComposite(ctx.F32[4], zero, zero, zero, one)};
ctx.OpStore(ctx.output_position, default_vector);
for (const Id generic_id : ctx.output_generics) {
if (Sirit::ValidId(generic_id)) {
ctx.OpStore(generic_id, default_vector);
for (const auto& info : ctx.output_generics) {
if (info[0].num_components == 0) {
continue;
}
u32 element{0};
while (element < 4) {
const auto& element_info{info[element]};
const u32 num{element_info.num_components};
const Id value{DefaultVarying(ctx, num, element, zero, one, default_vector)};
ctx.OpStore(element_info.id, value);
element += num;
}
}
}

7
src/shader_recompiler/frontend/ir/attribute.cpp
View File

@ -20,6 +20,13 @@ u32 GenericAttributeIndex(Attribute attribute) {
return (static_cast<u32>(attribute) - static_cast<u32>(Attribute::Generic0X)) / 4u;
}
u32 GenericAttributeElement(Attribute attribute) {
if (!IsGeneric(attribute)) {
throw InvalidArgument("Attribute is not generic {}", attribute);
}
return static_cast<u32>(attribute) % 4;
}
std::string NameOf(Attribute attribute) {
switch (attribute) {
case Attribute::PrimitiveId:

2
src/shader_recompiler/frontend/ir/attribute.h
View File

@ -226,6 +226,8 @@ enum class Attribute : u64 {
[[nodiscard]] u32 GenericAttributeIndex(Attribute attribute);
[[nodiscard]] u32 GenericAttributeElement(Attribute attribute);
[[nodiscard]] std::string NameOf(Attribute attribute);
} // namespace Shader::IR

10
src/shader_recompiler/profile.h
View File

@ -5,6 +5,7 @@
#pragma once
#include <array>
#include <vector>
#include <optional>
#include "common/common_types.h"
@ -26,6 +27,13 @@ enum class InputTopology {
TrianglesAdjacency,
};
struct TransformFeedbackVarying {
u32 buffer{};
u32 stride{};
u32 offset{};
u32 components{};
};
struct Profile {
u32 supported_spirv{0x00010000};
@ -58,6 +66,8 @@ struct Profile {
InputTopology input_topology{};
std::optional<float> fixed_state_point_size;
std::vector<TransformFeedbackVarying> xfb_varyings;
};
} // namespace Shader

19
src/video_core/renderer_vulkan/fixed_pipeline_state.cpp
View File

@ -52,6 +52,8 @@ void FixedPipelineState::Refresh(Tegra::Engines::Maxwell3D& maxwell3d,
const u32 topology_index = static_cast<u32>(regs.draw.topology.Value());
raw1 = 0;
no_extended_dynamic_state.Assign(has_extended_dynamic_state ? 0 : 1);
xfb_enabled.Assign(regs.tfb_enabled != 0);
primitive_restart_enable.Assign(regs.primitive_restart.enabled != 0 ? 1 : 0);
depth_bias_enable.Assign(enabled_lut[POLYGON_OFFSET_ENABLE_LUT[topology_index]] != 0 ? 1 : 0);
depth_clamp_disabled.Assign(regs.view_volume_clip_control.depth_clamp_disabled.Value());
@ -113,10 +115,12 @@ void FixedPipelineState::Refresh(Tegra::Engines::Maxwell3D& maxwell3d,
return static_cast<u16>(viewport.swizzle.raw);
});
}
if (!has_extended_dynamic_state) {
no_extended_dynamic_state.Assign(1);
if (no_extended_dynamic_state != 0) {
dynamic_state.Refresh(regs);
}
if (xfb_enabled != 0) {
xfb_state.Refresh(regs);
}
}
void FixedPipelineState::BlendingAttachment::Refresh(const Maxwell& regs, size_t index) {
@ -158,6 +162,17 @@ void FixedPipelineState::BlendingAttachment::Refresh(const Maxwell& regs, size_t
enable.Assign(1);
}
void FixedPipelineState::TransformFeedbackState::Refresh(const Maxwell& regs) {
std::ranges::transform(regs.tfb_layouts, layouts.begin(), [](const auto& layout) {
return Layout{
.stream = layout.stream,
.varying_count = layout.varying_count,
.stride = layout.stride,
};
});
varyings = regs.tfb_varying_locs;
}
void FixedPipelineState::DynamicState::Refresh(const Maxwell& regs) {
u32 packed_front_face = PackFrontFace(regs.front_face);
if (regs.screen_y_control.triangle_rast_flip != 0) {

26
src/video_core/renderer_vulkan/fixed_pipeline_state.h
View File

@ -130,6 +130,18 @@ struct FixedPipelineState {
}
};
struct TransformFeedbackState {
struct Layout {
u32 stream;
u32 varying_count;
u32 stride;
};
std::array<Layout, Maxwell::NumTransformFeedbackBuffers> layouts;
std::array<std::array<u8, 128>, Maxwell::NumTransformFeedbackBuffers> varyings;
void Refresh(const Maxwell& regs);
};
struct DynamicState {
union {
u32 raw1;
@ -168,6 +180,7 @@ struct FixedPipelineState {
union {
u32 raw1;
BitField<0, 1, u32> no_extended_dynamic_state;
BitField<1, 1, u32> xfb_enabled;
BitField<2, 1, u32> primitive_restart_enable;
BitField<3, 1, u32> depth_bias_enable;
BitField<4, 1, u32> depth_clamp_disabled;
@ -199,6 +212,7 @@ struct FixedPipelineState {
std::array<BlendingAttachment, Maxwell::NumRenderTargets> attachments;
std::array<u16, Maxwell::NumViewports> viewport_swizzles;
DynamicState dynamic_state;
TransformFeedbackState xfb_state;
void Refresh(Tegra::Engines::Maxwell3D& maxwell3d, bool has_extended_dynamic_state);
@ -211,8 +225,16 @@ struct FixedPipelineState {
}
size_t Size() const noexcept {
const size_t total_size = sizeof *this;
return total_size - (no_extended_dynamic_state != 0 ? 0 : sizeof(DynamicState));
if (xfb_enabled != 0) {
// When transform feedback is enabled, use the whole struct
return sizeof(*this);
} else if (no_extended_dynamic_state != 0) {
// Dynamic state is enabled, we can enable more
return offsetof(FixedPipelineState, xfb_state);
} else {
// No XFB, extended dynamic state enabled
return offsetof(FixedPipelineState, dynamic_state);
}
}
};
static_assert(std::has_unique_object_representations_v<FixedPipelineState>);

118
src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
View File

@ -248,6 +248,10 @@ namespace {
using Shader::Backend::SPIRV::EmitSPIRV;
using Shader::Maxwell::TranslateProgram;
// TODO: Move this to a separate file
constexpr std::array<char, 8> MAGIC_NUMBER{'y', 'u', 'z', 'u', 'c', 'a', 'c', 'h'};
constexpr u32 CACHE_VERSION{1};
class GraphicsEnvironment final : public GenericEnvironment {
public:
explicit GraphicsEnvironment() = default;
@ -379,13 +383,14 @@ void SerializePipeline(const Key& key, const Envs& envs, const std::string& file
try {
std::ofstream file;
file.exceptions(std::ifstream::failbit);
Common::FS::OpenFStream(file, filename, std::ios::binary | std::ios::app);
Common::FS::OpenFStream(file, filename, std::ios::binary | std::ios::ate | std::ios::app);
if (!file.is_open()) {
LOG_ERROR(Common_Filesystem, "Failed to open pipeline cache file {}", filename);
return;
}
if (file.tellp() == 0) {
// Write header...
file.write(MAGIC_NUMBER.data(), MAGIC_NUMBER.size())
.write(reinterpret_cast<const char*>(&CACHE_VERSION), sizeof(CACHE_VERSION));
}
const std::span key_span(reinterpret_cast<const char*>(&key), sizeof(key));
SerializePipeline(key_span, MakeSpan(envs), file);
@ -520,8 +525,27 @@ void PipelineCache::LoadDiskResources(u64 title_id, std::stop_token stop_loading
file.exceptions(std::ifstream::failbit);
const auto end{file.tellg()};
file.seekg(0, std::ios::beg);
// Read header...
std::array<char, 8> magic_number;
u32 cache_version;
file.read(magic_number.data(), magic_number.size())
.read(reinterpret_cast<char*>(&cache_version), sizeof(cache_version));
if (magic_number != MAGIC_NUMBER || cache_version != CACHE_VERSION) {
file.close();
if (Common::FS::Delete(pipeline_cache_filename)) {
if (magic_number != MAGIC_NUMBER) {
LOG_ERROR(Render_Vulkan, "Invalid pipeline cache file");
}
if (cache_version != CACHE_VERSION) {
LOG_INFO(Render_Vulkan, "Deleting old pipeline cache");
}
} else {
LOG_ERROR(Render_Vulkan,
"Invalid pipeline cache file and failed to delete it in \"{}\"",
pipeline_cache_filename);
}
return;
}
while (file.tellg() != end) {
if (stop_loading) {
return;
@ -879,6 +903,88 @@ static Shader::AttributeType CastAttributeType(const FixedPipelineState::VertexA
return Shader::AttributeType::Float;
}
static std::vector<Shader::TransformFeedbackVarying> MakeTransformFeedbackVaryings(
const GraphicsPipelineCacheKey& key) {
static constexpr std::array VECTORS{
28, // gl_Position
32, // Generic 0
36, // Generic 1
40, // Generic 2
44, // Generic 3
48, // Generic 4
52, // Generic 5
56, // Generic 6
60, // Generic 7
64, // Generic 8
68, // Generic 9
72, // Generic 10
76, // Generic 11
80, // Generic 12
84, // Generic 13
88, // Generic 14
92, // Generic 15
96, // Generic 16
100, // Generic 17
104, // Generic 18
108, // Generic 19
112, // Generic 20
116, // Generic 21
120, // Generic 22
124, // Generic 23
128, // Generic 24
132, // Generic 25
136, // Generic 26
140, // Generic 27
144, // Generic 28
148, // Generic 29
152, // Generic 30
156, // Generic 31
160, // gl_FrontColor
164, // gl_FrontSecondaryColor
160, // gl_BackColor
164, // gl_BackSecondaryColor
192, // gl_TexCoord[0]
196, // gl_TexCoord[1]
200, // gl_TexCoord[2]
204, // gl_TexCoord[3]
208, // gl_TexCoord[4]
212, // gl_TexCoord[5]
216, // gl_TexCoord[6]
220, // gl_TexCoord[7]
};
std::vector<Shader::TransformFeedbackVarying> xfb(256);
for (size_t buffer = 0; buffer < Maxwell::NumTransformFeedbackBuffers; ++buffer) {
const auto& locations = key.state.xfb_state.varyings[buffer];
const auto& layout = key.state.xfb_state.layouts[buffer];
const u32 varying_count = layout.varying_count;
u32 highest = 0;
for (u32 offset = 0; offset < varying_count; ++offset) {
const u32 base_offset = offset;
const u8 location = locations[offset];
Shader::TransformFeedbackVarying varying;
varying.buffer = layout.stream;
varying.stride = layout.stride;
varying.offset = offset * 4;
varying.components = 1;
if (std::ranges::find(VECTORS, Common::AlignDown(location, 4)) != VECTORS.end()) {
UNIMPLEMENTED_IF_MSG(location % 4 != 0, "Unaligned TFB");
const u8 base_index = location / 4;
while (offset + 1 < varying_count && base_index == locations[offset + 1] / 4) {
++offset;
++varying.components;
}
}
xfb[location] = varying;
highest = std::max(highest, (base_offset + varying.components) * 4);
}
UNIMPLEMENTED_IF(highest != layout.stride);
}
return xfb;
}
Shader::Profile PipelineCache::MakeProfile(const GraphicsPipelineCacheKey& key,
const Shader::IR::Program& program) {
Shader::Profile profile{base_profile};
@ -893,6 +999,9 @@ Shader::Profile PipelineCache::MakeProfile(const GraphicsPipelineCacheKey& key,
if (key.state.topology == Maxwell::PrimitiveTopology::Points) {
profile.fixed_state_point_size = point_size;
}
if (key.state.xfb_enabled != 0) {
profile.xfb_varyings = MakeTransformFeedbackVaryings(key);
}
profile.convert_depth_mode = gl_ndc;
}
std::ranges::transform(key.state.attributes, profile.generic_input_types.begin(),
@ -902,6 +1011,9 @@ Shader::Profile PipelineCache::MakeProfile(const GraphicsPipelineCacheKey& key,
if (program.output_topology == Shader::OutputTopology::PointList) {
profile.fixed_state_point_size = point_size;
}
if (key.state.xfb_enabled != 0) {
profile.xfb_varyings = MakeTransformFeedbackVaryings(key);
}
profile.convert_depth_mode = gl_ndc;
break;
default: