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glasm: Set transform feedback state

This commit is contained in:
ReinUsesLisp 2021-05-21 18:17:53 -03:00 committed by ameerj
parent 69b910e9e7
commit 6bc54e12a0
5 changed files with 132 additions and 113 deletions
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90
src/video_core/renderer_opengl/gl_graphics_program.cpp
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@ -12,7 +12,7 @@
#include "video_core/texture_cache/texture_cache.h"
namespace OpenGL {
namespace {
using Shader::ImageBufferDescriptor;
using Tegra::Texture::TexturePair;
using VideoCommon::ImageId;
@ -20,6 +20,35 @@ using VideoCommon::ImageId;
constexpr u32 MAX_TEXTURES = 64;
constexpr u32 MAX_IMAGES = 8;
/// Translates hardware transform feedback indices
/// @param location Hardware location
/// @return Pair of ARB_transform_feedback3 token stream first and third arguments
/// @note Read https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_transform_feedback3.txt
std::pair<GLint, GLint> TransformFeedbackEnum(u8 location) {
const u8 index = location / 4;
if (index >= 8 && index <= 39) {
return {GL_GENERIC_ATTRIB_NV, index - 8};
}
if (index >= 48 && index <= 55) {
return {GL_TEXTURE_COORD_NV, index - 48};
}
switch (index) {
case 7:
return {GL_POSITION, 0};
case 40:
return {GL_PRIMARY_COLOR_NV, 0};
case 41:
return {GL_SECONDARY_COLOR_NV, 0};
case 42:
return {GL_BACK_PRIMARY_COLOR_NV, 0};
case 43:
return {GL_BACK_SECONDARY_COLOR_NV, 0};
}
UNIMPLEMENTED_MSG("index={}", index);
return {GL_POSITION, 0};
}
} // Anonymous namespace
size_t GraphicsProgramKey::Hash() const noexcept {
return static_cast<size_t>(Common::CityHash64(reinterpret_cast<const char*>(this), Size()));
}
@ -34,7 +63,8 @@ GraphicsProgram::GraphicsProgram(TextureCache& texture_cache_, BufferCache& buff
ProgramManager& program_manager_, StateTracker& state_tracker_,
OGLProgram program_,
std::array<OGLAssemblyProgram, 5> assembly_programs_,
const std::array<const Shader::Info*, 5>& infos)
const std::array<const Shader::Info*, 5>& infos,
const VideoCommon::TransformFeedbackState* xfb_state)
: texture_cache{texture_cache_}, buffer_cache{buffer_cache_},
gpu_memory{gpu_memory_}, maxwell3d{maxwell3d_}, program_manager{program_manager_},
state_tracker{state_tracker_}, program{std::move(program_)}, assembly_programs{std::move(
@ -74,6 +104,10 @@ GraphicsProgram::GraphicsProgram(TextureCache& texture_cache_, BufferCache& buff
}
ASSERT(num_textures <= MAX_TEXTURES);
ASSERT(num_images <= MAX_IMAGES);
if (assembly_programs[0].handle != 0 && xfb_state) {
GenerateTransformFeedbackState(*xfb_state);
}
}
struct Spec {
@ -302,4 +336,56 @@ void GraphicsProgram::Configure(bool is_indexed) {
}
}
void GraphicsProgram::GenerateTransformFeedbackState(
const VideoCommon::TransformFeedbackState& xfb_state) {
// TODO(Rodrigo): Inject SKIP_COMPONENTS*_NV when required. An unimplemented message will signal
// when this is required.
const auto& regs{maxwell3d.regs};
GLint* cursor{xfb_attribs.data()};
GLint* current_stream{xfb_streams.data()};
for (size_t feedback = 0; feedback < Maxwell::NumTransformFeedbackBuffers; ++feedback) {
const auto& layout = regs.tfb_layouts[feedback];
UNIMPLEMENTED_IF_MSG(layout.stride != layout.varying_count * 4, "Stride padding");
if (layout.varying_count == 0) {
continue;
}
*current_stream = static_cast<GLint>(feedback);
if (current_stream != xfb_streams.data()) {
// When stepping one stream, push the expected token
cursor[0] = GL_NEXT_BUFFER_NV;
cursor[1] = 0;
cursor[2] = 0;
cursor += XFB_ENTRY_STRIDE;
}
++current_stream;
const auto& locations = regs.tfb_varying_locs[feedback];
std::optional<u8> current_index;
for (u32 offset = 0; offset < layout.varying_count; ++offset) {
const u8 location = locations[offset];
const u8 index = location / 4;
if (current_index == index) {
// Increase number of components of the previous attachment
++cursor[-2];
continue;
}
current_index = index;
std::tie(cursor[0], cursor[2]) = TransformFeedbackEnum(location);
cursor[1] = 1;
cursor += XFB_ENTRY_STRIDE;
}
}
num_xfb_attribs = static_cast<GLsizei>((cursor - xfb_attribs.data()) / XFB_ENTRY_STRIDE);
num_xfb_strides = static_cast<GLsizei>(current_stream - xfb_streams.data());
}
void GraphicsProgram::ConfigureTransformFeedbackImpl() const {
glTransformFeedbackStreamAttribsNV(num_xfb_attribs, xfb_attribs.data(), num_xfb_strides,
xfb_streams.data(), GL_INTERLEAVED_ATTRIBS);
}
} // namespace OpenGL

32
src/video_core/renderer_opengl/gl_graphics_program.h
View File

@ -16,6 +16,7 @@
#include "video_core/renderer_opengl/gl_buffer_cache.h"
#include "video_core/renderer_opengl/gl_resource_manager.h"
#include "video_core/renderer_opengl/gl_texture_cache.h"
#include "video_core/transform_feedback.h"
namespace OpenGL {
@ -24,16 +25,6 @@ class ProgramManager;
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
struct GraphicsProgramKey {
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;
};
std::array<u64, 6> unique_hashes;
union {
u32 raw;
@ -45,7 +36,7 @@ struct GraphicsProgramKey {
BitField<10, 1, u32> tessellation_clockwise;
};
std::array<u32, 3> padding;
TransformFeedbackState xfb_state;
VideoCommon::TransformFeedbackState xfb_state;
size_t Hash() const noexcept;
@ -75,11 +66,22 @@ public:
ProgramManager& program_manager_, StateTracker& state_tracker_,
OGLProgram program_,
std::array<OGLAssemblyProgram, 5> assembly_programs_,
const std::array<const Shader::Info*, 5>& infos);
const std::array<const Shader::Info*, 5>& infos,
const VideoCommon::TransformFeedbackState* xfb_state);
void Configure(bool is_indexed);
void ConfigureTransformFeedback() const {
if (num_xfb_attribs != 0) {
ConfigureTransformFeedbackImpl();
}
}
private:
void GenerateTransformFeedbackState(const VideoCommon::TransformFeedbackState& xfb_state);
void ConfigureTransformFeedbackImpl() const;
TextureCache& texture_cache;
BufferCache& buffer_cache;
Tegra::MemoryManager& gpu_memory;
@ -96,6 +98,12 @@ private:
std::array<u32, 5> base_storage_bindings{};
std::array<u32, 5> num_texture_buffers{};
std::array<u32, 5> num_image_buffers{};
static constexpr std::size_t XFB_ENTRY_STRIDE = 3;
GLsizei num_xfb_attribs{};
GLsizei num_xfb_strides{};
std::array<GLint, 128 * XFB_ENTRY_STRIDE * Maxwell::NumTransformFeedbackBuffers> xfb_attribs{};
std::array<GLint, Maxwell::NumTransformFeedbackBuffers> xfb_streams{};
};
} // namespace OpenGL

98
src/video_core/renderer_opengl/gl_rasterizer.cpp
View File

@ -51,37 +51,8 @@ MICROPROFILE_DEFINE(OpenGL_Blits, "OpenGL", "Blits", MP_RGB(128, 128, 192));
MICROPROFILE_DEFINE(OpenGL_CacheManagement, "OpenGL", "Cache Management", MP_RGB(100, 255, 100));
namespace {
constexpr size_t NUM_SUPPORTED_VERTEX_ATTRIBUTES = 16;
/// Translates hardware transform feedback indices
/// @param location Hardware location
/// @return Pair of ARB_transform_feedback3 token stream first and third arguments
/// @note Read https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_transform_feedback3.txt
std::pair<GLint, GLint> TransformFeedbackEnum(u8 location) {
const u8 index = location / 4;
if (index >= 8 && index <= 39) {
return {GL_GENERIC_ATTRIB_NV, index - 8};
}
if (index >= 48 && index <= 55) {
return {GL_TEXTURE_COORD_NV, index - 48};
}
switch (index) {
case 7:
return {GL_POSITION, 0};
case 40:
return {GL_PRIMARY_COLOR_NV, 0};
case 41:
return {GL_SECONDARY_COLOR_NV, 0};
case 42:
return {GL_BACK_PRIMARY_COLOR_NV, 0};
case 43:
return {GL_BACK_SECONDARY_COLOR_NV, 0};
}
UNIMPLEMENTED_MSG("index={}", index);
return {GL_POSITION, 0};
}
void oglEnable(GLenum cap, bool state) {
(state ? glEnable : glDisable)(cap);
}
@ -253,7 +224,7 @@ void RasterizerOpenGL::Draw(bool is_indexed, bool is_instanced) {
program->Configure(is_indexed);
const GLenum primitive_mode = MaxwellToGL::PrimitiveTopology(maxwell3d.regs.draw.topology);
BeginTransformFeedback(primitive_mode);
BeginTransformFeedback(program, primitive_mode);
const GLuint base_instance = static_cast<GLuint>(maxwell3d.regs.vb_base_instance);
const GLsizei num_instances =
@ -1025,68 +996,13 @@ void RasterizerOpenGL::SyncFramebufferSRGB() {
oglEnable(GL_FRAMEBUFFER_SRGB, maxwell3d.regs.framebuffer_srgb);
}
void RasterizerOpenGL::SyncTransformFeedback() {
// TODO(Rodrigo): Inject SKIP_COMPONENTS*_NV when required. An unimplemented message will signal
// when this is required.
const auto& regs = maxwell3d.regs;
static constexpr std::size_t STRIDE = 3;
std::array<GLint, 128 * STRIDE * Maxwell::NumTransformFeedbackBuffers> attribs;
std::array<GLint, Maxwell::NumTransformFeedbackBuffers> streams;
GLint* cursor = attribs.data();
GLint* current_stream = streams.data();
for (std::size_t feedback = 0; feedback < Maxwell::NumTransformFeedbackBuffers; ++feedback) {
const auto& layout = regs.tfb_layouts[feedback];
UNIMPLEMENTED_IF_MSG(layout.stride != layout.varying_count * 4, "Stride padding");
if (layout.varying_count == 0) {
continue;
}
*current_stream = static_cast<GLint>(feedback);
if (current_stream != streams.data()) {
// When stepping one stream, push the expected token
cursor[0] = GL_NEXT_BUFFER_NV;
cursor[1] = 0;
cursor[2] = 0;
cursor += STRIDE;
}
++current_stream;
const auto& locations = regs.tfb_varying_locs[feedback];
std::optional<u8> current_index;
for (u32 offset = 0; offset < layout.varying_count; ++offset) {
const u8 location = locations[offset];
const u8 index = location / 4;
if (current_index == index) {
// Increase number of components of the previous attachment
++cursor[-2];
continue;
}
current_index = index;
std::tie(cursor[0], cursor[2]) = TransformFeedbackEnum(location);
cursor[1] = 1;
cursor += STRIDE;
}
}
const GLsizei num_attribs = static_cast<GLsizei>((cursor - attribs.data()) / STRIDE);
const GLsizei num_strides = static_cast<GLsizei>(current_stream - streams.data());
glTransformFeedbackStreamAttribsNV(num_attribs, attribs.data(), num_strides, streams.data(),
GL_INTERLEAVED_ATTRIBS);
}
void RasterizerOpenGL::BeginTransformFeedback(GLenum primitive_mode) {
void RasterizerOpenGL::BeginTransformFeedback(GraphicsProgram* program, GLenum primitive_mode) {
const auto& regs = maxwell3d.regs;
if (regs.tfb_enabled == 0) {
return;
}
if (device.UseAssemblyShaders()) {
SyncTransformFeedback();
}
program->ConfigureTransformFeedback();
UNIMPLEMENTED_IF(regs.IsShaderConfigEnabled(Maxwell::ShaderProgram::TesselationControl) ||
regs.IsShaderConfigEnabled(Maxwell::ShaderProgram::TesselationEval) ||
regs.IsShaderConfigEnabled(Maxwell::ShaderProgram::Geometry));
@ -1100,12 +1016,10 @@ void RasterizerOpenGL::BeginTransformFeedback(GLenum primitive_mode) {
}
void RasterizerOpenGL::EndTransformFeedback() {
const auto& regs = maxwell3d.regs;
if (regs.tfb_enabled == 0) {
return;
}
if (maxwell3d.regs.tfb_enabled != 0) {
glEndTransformFeedback();
}
}
AccelerateDMA::AccelerateDMA(BufferCache& buffer_cache_) : buffer_cache{buffer_cache_} {}

6
src/video_core/renderer_opengl/gl_rasterizer.h
View File

@ -193,12 +193,8 @@ private:
/// Syncs vertex instances to match the guest state
void SyncVertexInstances();
/// Syncs transform feedback state to match guest state
/// @note Only valid on assembly shaders
void SyncTransformFeedback();
/// Begin a transform feedback
void BeginTransformFeedback(GLenum primitive_mode);
void BeginTransformFeedback(GraphicsProgram* program, GLenum primitive_mode);
/// End a transform feedback
void EndTransformFeedback();

19
src/video_core/renderer_opengl/gl_shader_cache.cpp
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@ -254,6 +254,17 @@ Shader::RuntimeInfo MakeRuntimeInfo(const GraphicsProgramKey& key,
}
return info;
}
void SetXfbState(VideoCommon::TransformFeedbackState& state, const Maxwell& regs) {
std::ranges::transform(regs.tfb_layouts, state.layouts.begin(), [](const auto& layout) {
return VideoCommon::TransformFeedbackState::Layout{
.stream = layout.stream,
.varying_count = layout.varying_count,
.stride = layout.stride,
};
});
state.varyings = regs.tfb_varying_locs;
}
} // Anonymous namespace
ShaderCache::ShaderCache(RasterizerOpenGL& rasterizer_, Core::Frontend::EmuWindow& emu_window_,
@ -282,7 +293,10 @@ GraphicsProgram* ShaderCache::CurrentGraphicsProgram() {
graphics_key.tessellation_primitive.Assign(regs.tess_mode.prim.Value());
graphics_key.tessellation_spacing.Assign(regs.tess_mode.spacing.Value());
graphics_key.tessellation_clockwise.Assign(regs.tess_mode.cw.Value());
graphics_key.xfb_enabled.Assign(regs.tfb_enabled != 0 ? 1 : 0);
if (graphics_key.xfb_enabled) {
SetXfbState(graphics_key.xfb_state, regs);
}
const auto [pair, is_new]{graphics_cache.try_emplace(graphics_key)};
auto& program{pair->second};
if (is_new) {
@ -368,7 +382,8 @@ std::unique_ptr<GraphicsProgram> ShaderCache::CreateGraphicsProgram(
}
return std::make_unique<GraphicsProgram>(
texture_cache, buffer_cache, gpu_memory, maxwell3d, program_manager, state_tracker,
std::move(source_program), std::move(assembly_programs), infos);
std::move(source_program), std::move(assembly_programs), infos,
key.xfb_enabled != 0 ? &key.xfb_state : nullptr);
}
std::unique_ptr<ComputeProgram> ShaderCache::CreateComputeProgram(