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Merge pull request #1987 from ReinUsesLisp/explicit-shader-ldg

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gl_shader_cache: Use explicit bindings
This commit is contained in:
bunnei 2019-01-29 22:15:55 -05:00 committed by GitHub
parent 52bb524526 52c326c301
commit 4c818b60e3
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 204 additions and 259 deletions
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130
src/video_core/renderer_opengl/gl_rasterizer.cpp
View file

@ -297,11 +297,7 @@ void RasterizerOpenGL::SetupShaders(GLenum primitive_mode) {
MICROPROFILE_SCOPE(OpenGL_Shader);
auto& gpu = Core::System::GetInstance().GPU().Maxwell3D();
// Next available bindpoints to use when uploading the const buffers and textures to the GLSL
// shaders. The constbuffer bindpoint starts after the shader stage configuration bind points.
u32 current_constbuffer_bindpoint = Tegra::Engines::Maxwell3D::Regs::MaxShaderStage;
u32 current_gmem_bindpoint = 0;
u32 current_texture_bindpoint = 0;
BaseBindings base_bindings;
std::array<bool, Maxwell::NumClipDistances> clip_distances{};
for (std::size_t index = 0; index < Maxwell::MaxShaderProgram; ++index) {
@ -325,47 +321,35 @@ void RasterizerOpenGL::SetupShaders(GLenum primitive_mode) {
const GLintptr offset = buffer_cache.UploadHostMemory(
&ubo, sizeof(ubo), static_cast<std::size_t>(uniform_buffer_alignment));
// Bind the buffer
glBindBufferRange(GL_UNIFORM_BUFFER, static_cast<GLuint>(stage), buffer_cache.GetHandle(),
offset, static_cast<GLsizeiptr>(sizeof(ubo)));
// Bind the emulation info buffer
glBindBufferRange(GL_UNIFORM_BUFFER, base_bindings.cbuf, buffer_cache.GetHandle(), offset,
static_cast<GLsizeiptr>(sizeof(ubo)));
Shader shader{shader_cache.GetStageProgram(program)};
const auto [program_handle, next_bindings] =
shader->GetProgramHandle(primitive_mode, base_bindings);
switch (program) {
case Maxwell::ShaderProgram::VertexA:
case Maxwell::ShaderProgram::VertexB: {
shader_program_manager->UseProgrammableVertexShader(
shader->GetProgramHandle(primitive_mode));
case Maxwell::ShaderProgram::VertexB:
shader_program_manager->UseProgrammableVertexShader(program_handle);
break;
}
case Maxwell::ShaderProgram::Geometry: {
shader_program_manager->UseProgrammableGeometryShader(
shader->GetProgramHandle(primitive_mode));
case Maxwell::ShaderProgram::Geometry:
shader_program_manager->UseProgrammableGeometryShader(program_handle);
break;
}
case Maxwell::ShaderProgram::Fragment: {
shader_program_manager->UseProgrammableFragmentShader(
shader->GetProgramHandle(primitive_mode));
case Maxwell::ShaderProgram::Fragment:
shader_program_manager->UseProgrammableFragmentShader(program_handle);
break;
}
default:
LOG_CRITICAL(HW_GPU, "Unimplemented shader index={}, enable={}, offset=0x{:08X}", index,
shader_config.enable.Value(), shader_config.offset);
UNREACHABLE();
}
// Configure the const buffers for this shader stage.
current_constbuffer_bindpoint =
SetupConstBuffers(static_cast<Maxwell::ShaderStage>(stage), shader, primitive_mode,
current_constbuffer_bindpoint);
// Configure global memory regions for this shader stage.
current_gmem_bindpoint = SetupGlobalRegions(static_cast<Maxwell::ShaderStage>(stage),
shader, primitive_mode, current_gmem_bindpoint);
// Configure the textures for this shader stage.
current_texture_bindpoint = SetupTextures(static_cast<Maxwell::ShaderStage>(stage), shader,
primitive_mode, current_texture_bindpoint);
const auto stage_enum = static_cast<Maxwell::ShaderStage>(stage);
SetupConstBuffers(stage_enum, shader, program_handle, base_bindings);
SetupGlobalRegions(stage_enum, shader, program_handle, base_bindings);
SetupTextures(stage_enum, shader, program_handle, base_bindings);
// Workaround for Intel drivers.
// When a clip distance is enabled but not set in the shader it crops parts of the screen
@ -380,6 +364,8 @@ void RasterizerOpenGL::SetupShaders(GLenum primitive_mode) {
// VertexB was combined with VertexA, so we skip the VertexB iteration
index++;
}
base_bindings = next_bindings;
}
SyncClipEnabled(clip_distances);
@ -929,8 +915,9 @@ void RasterizerOpenGL::SamplerInfo::SyncWithConfig(const Tegra::Texture::TSCEntr
}
}
u32 RasterizerOpenGL::SetupConstBuffers(Maxwell::ShaderStage stage, Shader& shader,
GLenum primitive_mode, u32 current_bindpoint) {
void RasterizerOpenGL::SetupConstBuffers(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage,
const Shader& shader, GLuint program_handle,
BaseBindings base_bindings) {
MICROPROFILE_SCOPE(OpenGL_UBO);
const auto& gpu = Core::System::GetInstance().GPU();
const auto& maxwell3d = gpu.Maxwell3D();
@ -978,92 +965,73 @@ u32 RasterizerOpenGL::SetupConstBuffers(Maxwell::ShaderStage stage, Shader& shad
size = Common::AlignUp(size, sizeof(GLvec4));
ASSERT_MSG(size <= MaxConstbufferSize, "Constbuffer too big");
GLintptr const_buffer_offset = buffer_cache.UploadMemory(
const GLintptr const_buffer_offset = buffer_cache.UploadMemory(
buffer.address, size, static_cast<std::size_t>(uniform_buffer_alignment));
// Now configure the bindpoint of the buffer inside the shader
glUniformBlockBinding(shader->GetProgramHandle(primitive_mode),
shader->GetProgramResourceIndex(used_buffer),
current_bindpoint + bindpoint);
// Prepare values for multibind
bind_buffers[bindpoint] = buffer_cache.GetHandle();
bind_offsets[bindpoint] = const_buffer_offset;
bind_sizes[bindpoint] = size;
}
glBindBuffersRange(GL_UNIFORM_BUFFER, current_bindpoint, static_cast<GLsizei>(entries.size()),
// The first binding is reserved for emulation values
const GLuint ubo_base_binding = base_bindings.cbuf + 1;
glBindBuffersRange(GL_UNIFORM_BUFFER, ubo_base_binding, static_cast<GLsizei>(entries.size()),
bind_buffers.data(), bind_offsets.data(), bind_sizes.data());
return current_bindpoint + static_cast<u32>(entries.size());
}
u32 RasterizerOpenGL::SetupGlobalRegions(Maxwell::ShaderStage stage, Shader& shader,
GLenum primitive_mode, u32 current_bindpoint) {
for (const auto& global_region : shader->GetShaderEntries().global_memory_entries) {
const auto& region =
global_cache.GetGlobalRegion(global_region, static_cast<Maxwell::ShaderStage>(stage));
const GLuint block_index{shader->GetProgramResourceIndex(global_region)};
ASSERT(block_index != GL_INVALID_INDEX);
void RasterizerOpenGL::SetupGlobalRegions(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage,
const Shader& shader, GLenum primitive_mode,
BaseBindings base_bindings) {
// TODO(Rodrigo): Use ARB_multi_bind here
const auto& entries = shader->GetShaderEntries().global_memory_entries;
for (u32 bindpoint = 0; bindpoint < static_cast<u32>(entries.size()); ++bindpoint) {
const auto& entry = entries[bindpoint];
const u32 current_bindpoint = base_bindings.gmem + bindpoint;
const auto& region = global_cache.GetGlobalRegion(entry, stage);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, current_bindpoint, region->GetBufferHandle());
glShaderStorageBlockBinding(shader->GetProgramHandle(primitive_mode), block_index,
current_bindpoint);
++current_bindpoint;
}
return current_bindpoint;
}
u32 RasterizerOpenGL::SetupTextures(Maxwell::ShaderStage stage, Shader& shader,
GLenum primitive_mode, u32 current_unit) {
void RasterizerOpenGL::SetupTextures(Maxwell::ShaderStage stage, const Shader& shader,
GLuint program_handle, BaseBindings base_bindings) {
MICROPROFILE_SCOPE(OpenGL_Texture);
const auto& gpu = Core::System::GetInstance().GPU();
const auto& maxwell3d = gpu.Maxwell3D();
const auto& entries = shader->GetShaderEntries().samplers;
ASSERT_MSG(current_unit + entries.size() <= std::size(state.texture_units),
ASSERT_MSG(base_bindings.sampler + entries.size() <= std::size(state.texture_units),
"Exceeded the number of active textures.");
for (u32 bindpoint = 0; bindpoint < entries.size(); ++bindpoint) {
const auto& entry = entries[bindpoint];
const u32 current_bindpoint = current_unit + bindpoint;
// Bind the uniform to the sampler.
glProgramUniform1i(shader->GetProgramHandle(primitive_mode),
shader->GetUniformLocation(entry), current_bindpoint);
const u32 current_bindpoint = base_bindings.sampler + bindpoint;
auto& unit = state.texture_units[current_bindpoint];
const auto texture = maxwell3d.GetStageTexture(entry.GetStage(), entry.GetOffset());
if (!texture.enabled) {
state.texture_units[current_bindpoint].texture = 0;
unit.texture = 0;
continue;
}
texture_samplers[current_bindpoint].SyncWithConfig(texture.tsc);
Surface surface = res_cache.GetTextureSurface(texture, entry);
if (surface != nullptr) {
const GLuint handle =
unit.texture =
entry.IsArray() ? surface->TextureLayer().handle : surface->Texture().handle;
const GLenum target = entry.IsArray() ? surface->TargetLayer() : surface->Target();
state.texture_units[current_bindpoint].texture = handle;
state.texture_units[current_bindpoint].target = target;
state.texture_units[current_bindpoint].swizzle.r =
MaxwellToGL::SwizzleSource(texture.tic.x_source);
state.texture_units[current_bindpoint].swizzle.g =
MaxwellToGL::SwizzleSource(texture.tic.y_source);
state.texture_units[current_bindpoint].swizzle.b =
MaxwellToGL::SwizzleSource(texture.tic.z_source);
state.texture_units[current_bindpoint].swizzle.a =
MaxwellToGL::SwizzleSource(texture.tic.w_source);
unit.target = entry.IsArray() ? surface->TargetLayer() : surface->Target();
unit.swizzle.r = MaxwellToGL::SwizzleSource(texture.tic.x_source);
unit.swizzle.g = MaxwellToGL::SwizzleSource(texture.tic.y_source);
unit.swizzle.b = MaxwellToGL::SwizzleSource(texture.tic.z_source);
unit.swizzle.a = MaxwellToGL::SwizzleSource(texture.tic.w_source);
} else {
// Can occur when texture addr is null or its memory is unmapped/invalid
state.texture_units[current_bindpoint].texture = 0;
unit.texture = 0;
}
}
return current_unit + static_cast<u32>(entries.size());
}
void RasterizerOpenGL::SyncViewport(OpenGLState& current_state) {

37
src/video_core/renderer_opengl/gl_rasterizer.h
View file

@ -127,35 +127,18 @@ private:
bool using_depth_fb = true, bool preserve_contents = true,
std::optional<std::size_t> single_color_target = {});
/**
* Configures the current constbuffers to use for the draw command.
* @param stage The shader stage to configure buffers for.
* @param shader The shader object that contains the specified stage.
* @param current_bindpoint The offset at which to start counting new buffer bindpoints.
* @returns The next available bindpoint for use in the next shader stage.
*/
u32 SetupConstBuffers(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage, Shader& shader,
GLenum primitive_mode, u32 current_bindpoint);
/// Configures the current constbuffers to use for the draw command.
void SetupConstBuffers(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage, const Shader& shader,
GLuint program_handle, BaseBindings base_bindings);
/**
* Configures the current global memory regions to use for the draw command.
* @param stage The shader stage to configure buffers for.
* @param shader The shader object that contains the specified stage.
* @param current_bindpoint The offset at which to start counting new buffer bindpoints.
* @returns The next available bindpoint for use in the next shader stage.
*/
u32 SetupGlobalRegions(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage, Shader& shader,
GLenum primitive_mode, u32 current_bindpoint);
/// Configures the current global memory entries to use for the draw command.
void SetupGlobalRegions(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage,
const Shader& shader, GLenum primitive_mode,
BaseBindings base_bindings);
/**
* Configures the current textures to use for the draw command.
* @param stage The shader stage to configure textures for.
* @param shader The shader object that contains the specified stage.
* @param current_unit The offset at which to start counting unused texture units.
* @returns The next available bindpoint for use in the next shader stage.
*/
u32 SetupTextures(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage, Shader& shader,
GLenum primitive_mode, u32 current_unit);
/// Configures the current textures to use for the draw command.
void SetupTextures(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage, const Shader& shader,
GLuint program_handle, BaseBindings base_bindings);
/// Syncs the viewport and depth range to match the guest state
void SyncViewport(OpenGLState& current_state);

166
src/video_core/renderer_opengl/gl_shader_cache.cpp
View file

@ -34,36 +34,25 @@ static ProgramCode GetShaderCode(VAddr addr) {
return program_code;
}
/// Helper function to set shader uniform block bindings for a single shader stage
static void SetShaderUniformBlockBinding(GLuint shader, const char* name,
Maxwell::ShaderStage binding, std::size_t expected_size) {
const GLuint ub_index = glGetUniformBlockIndex(shader, name);
if (ub_index == GL_INVALID_INDEX) {
return;
/// Gets the shader type from a Maxwell program type
constexpr GLenum GetShaderType(Maxwell::ShaderProgram program_type) {
switch (program_type) {
case Maxwell::ShaderProgram::VertexA:
case Maxwell::ShaderProgram::VertexB:
return GL_VERTEX_SHADER;
case Maxwell::ShaderProgram::Geometry:
return GL_GEOMETRY_SHADER;
case Maxwell::ShaderProgram::Fragment:
return GL_FRAGMENT_SHADER;
default:
return GL_NONE;
}
GLint ub_size = 0;
glGetActiveUniformBlockiv(shader, ub_index, GL_UNIFORM_BLOCK_DATA_SIZE, &ub_size);
ASSERT_MSG(static_cast<std::size_t>(ub_size) == expected_size,
"Uniform block size did not match! Got {}, expected {}", ub_size, expected_size);
glUniformBlockBinding(shader, ub_index, static_cast<GLuint>(binding));
}
/// Sets shader uniform block bindings for an entire shader program
static void SetShaderUniformBlockBindings(GLuint shader) {
SetShaderUniformBlockBinding(shader, "vs_config", Maxwell::ShaderStage::Vertex,
sizeof(GLShader::MaxwellUniformData));
SetShaderUniformBlockBinding(shader, "gs_config", Maxwell::ShaderStage::Geometry,
sizeof(GLShader::MaxwellUniformData));
SetShaderUniformBlockBinding(shader, "fs_config", Maxwell::ShaderStage::Fragment,
sizeof(GLShader::MaxwellUniformData));
}
CachedShader::CachedShader(VAddr addr, Maxwell::ShaderProgram program_type)
: addr{addr}, program_type{program_type}, setup{GetShaderCode(addr)} {
GLShader::ProgramResult program_result;
GLenum gl_type{};
switch (program_type) {
case Maxwell::ShaderProgram::VertexA:
@ -74,17 +63,14 @@ CachedShader::CachedShader(VAddr addr, Maxwell::ShaderProgram program_type)
case Maxwell::ShaderProgram::VertexB:
CalculateProperties();
program_result = GLShader::GenerateVertexShader(setup);
gl_type = GL_VERTEX_SHADER;
break;
case Maxwell::ShaderProgram::Geometry:
CalculateProperties();
program_result = GLShader::GenerateGeometryShader(setup);
gl_type = GL_GEOMETRY_SHADER;
break;
case Maxwell::ShaderProgram::Fragment:
CalculateProperties();
program_result = GLShader::GenerateFragmentShader(setup);
gl_type = GL_FRAGMENT_SHADER;
break;
default:
LOG_CRITICAL(HW_GPU, "Unimplemented program_type={}", static_cast<u32>(program_type));
@ -92,71 +78,105 @@ CachedShader::CachedShader(VAddr addr, Maxwell::ShaderProgram program_type)
return;
}
code = program_result.first;
entries = program_result.second;
shader_length = entries.shader_length;
}
if (program_type != Maxwell::ShaderProgram::Geometry) {
OGLShader shader;
shader.Create(program_result.first.c_str(), gl_type);
program.Create(true, shader.handle);
SetShaderUniformBlockBindings(program.handle);
LabelGLObject(GL_PROGRAM, program.handle, addr);
std::tuple<GLuint, BaseBindings> CachedShader::GetProgramHandle(GLenum primitive_mode,
BaseBindings base_bindings) {
GLuint handle{};
if (program_type == Maxwell::ShaderProgram::Geometry) {
handle = GetGeometryShader(primitive_mode, base_bindings);
} else {
// Store shader's code to lazily build it on draw
geometry_programs.code = program_result.first;
const auto [entry, is_cache_miss] = programs.try_emplace(base_bindings);
auto& program = entry->second;
if (is_cache_miss) {
std::string source = AllocateBindings(base_bindings);
source += code;
OGLShader shader;
shader.Create(source.c_str(), GetShaderType(program_type));
program.Create(true, shader.handle);
LabelGLObject(GL_PROGRAM, program.handle, addr);
}
handle = program.handle;
}
// Add const buffer and samplers offset reserved by this shader. One UBO binding is reserved for
// emulation values
base_bindings.cbuf += static_cast<u32>(entries.const_buffers.size()) + 1;
base_bindings.gmem += static_cast<u32>(entries.global_memory_entries.size());
base_bindings.sampler += static_cast<u32>(entries.samplers.size());
return {handle, base_bindings};
}
std::string CachedShader::AllocateBindings(BaseBindings base_bindings) {
std::string code = "#version 430 core\n";
code += fmt::format("#define EMULATION_UBO_BINDING {}\n", base_bindings.cbuf++);
for (const auto& cbuf : entries.const_buffers) {
code += fmt::format("#define CBUF_BINDING_{} {}\n", cbuf.GetIndex(), base_bindings.cbuf++);
}
for (const auto& gmem : entries.global_memory_entries) {
code += fmt::format("#define GMEM_BINDING_{}_{} {}\n", gmem.GetCbufIndex(),
gmem.GetCbufOffset(), base_bindings.gmem++);
}
for (const auto& sampler : entries.samplers) {
code += fmt::format("#define SAMPLER_BINDING_{} {}\n", sampler.GetIndex(),
base_bindings.sampler++);
}
return code;
}
GLuint CachedShader::GetGeometryShader(GLenum primitive_mode, BaseBindings base_bindings) {
const auto [entry, is_cache_miss] = geometry_programs.try_emplace(base_bindings);
auto& programs = entry->second;
switch (primitive_mode) {
case GL_POINTS:
return LazyGeometryProgram(programs.points, base_bindings, "points", 1, "ShaderPoints");
case GL_LINES:
case GL_LINE_STRIP:
return LazyGeometryProgram(programs.lines, base_bindings, "lines", 2, "ShaderLines");
case GL_LINES_ADJACENCY:
case GL_LINE_STRIP_ADJACENCY:
return LazyGeometryProgram(programs.lines_adjacency, base_bindings, "lines_adjacency", 4,
"ShaderLinesAdjacency");
case GL_TRIANGLES:
case GL_TRIANGLE_STRIP:
case GL_TRIANGLE_FAN:
return LazyGeometryProgram(programs.triangles, base_bindings, "triangles", 3,
"ShaderTriangles");
case GL_TRIANGLES_ADJACENCY:
case GL_TRIANGLE_STRIP_ADJACENCY:
return LazyGeometryProgram(programs.triangles_adjacency, base_bindings,
"triangles_adjacency", 6, "ShaderTrianglesAdjacency");
default:
UNREACHABLE_MSG("Unknown primitive mode.");
return LazyGeometryProgram(programs.points, base_bindings, "points", 1, "ShaderPoints");
}
}
GLuint CachedShader::GetProgramResourceIndex(const GLShader::ConstBufferEntry& buffer) {
const auto search{cbuf_resource_cache.find(buffer.GetHash())};
if (search == cbuf_resource_cache.end()) {
const GLuint index{
glGetProgramResourceIndex(program.handle, GL_UNIFORM_BLOCK, buffer.GetName().c_str())};
cbuf_resource_cache[buffer.GetHash()] = index;
return index;
}
return search->second;
}
GLuint CachedShader::GetProgramResourceIndex(const GLShader::GlobalMemoryEntry& global_mem) {
const auto search{gmem_resource_cache.find(global_mem.GetHash())};
if (search == gmem_resource_cache.end()) {
const GLuint index{glGetProgramResourceIndex(program.handle, GL_SHADER_STORAGE_BLOCK,
global_mem.GetName().c_str())};
gmem_resource_cache[global_mem.GetHash()] = index;
return index;
}
return search->second;
}
GLint CachedShader::GetUniformLocation(const GLShader::SamplerEntry& sampler) {
const auto search{uniform_cache.find(sampler.GetHash())};
if (search == uniform_cache.end()) {
const GLint index{glGetUniformLocation(program.handle, sampler.GetName().c_str())};
uniform_cache[sampler.GetHash()] = index;
return index;
}
return search->second;
}
GLuint CachedShader::LazyGeometryProgram(OGLProgram& target_program,
GLuint CachedShader::LazyGeometryProgram(OGLProgram& target_program, BaseBindings base_bindings,
const std::string& glsl_topology, u32 max_vertices,
const std::string& debug_name) {
if (target_program.handle != 0) {
return target_program.handle;
}
std::string source = "#version 430 core\n";
std::string source = AllocateBindings(base_bindings);
source += "layout (" + glsl_topology + ") in;\n";
source += "#define MAX_VERTEX_INPUT " + std::to_string(max_vertices) + '\n';
source += geometry_programs.code;
source += code;
OGLShader shader;
shader.Create(source.c_str(), GL_GEOMETRY_SHADER);
target_program.Create(true, shader.handle);
SetShaderUniformBlockBindings(target_program.handle);
LabelGLObject(GL_PROGRAM, target_program.handle, addr, debug_name);
return target_program.handle;
};

94
src/video_core/renderer_opengl/gl_shader_cache.h
View file

@ -7,6 +7,9 @@
#include <array>
#include <map>
#include <memory>
#include <tuple>
#include <glad/glad.h>
#include "common/assert.h"
#include "common/common_types.h"
@ -23,6 +26,16 @@ class RasterizerOpenGL;
using Shader = std::shared_ptr<CachedShader>;
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
struct BaseBindings {
u32 cbuf{};
u32 gmem{};
u32 sampler{};
bool operator<(const BaseBindings& rhs) const {
return std::tie(cbuf, gmem, sampler) < std::tie(rhs.cbuf, rhs.gmem, rhs.sampler);
}
};
class CachedShader final : public RasterizerCacheObject {
public:
CachedShader(VAddr addr, Maxwell::ShaderProgram program_type);
@ -44,71 +57,42 @@ public:
}
/// Gets the GL program handle for the shader
GLuint GetProgramHandle(GLenum primitive_mode) {
if (program_type != Maxwell::ShaderProgram::Geometry) {
return program.handle;
}
switch (primitive_mode) {
case GL_POINTS:
return LazyGeometryProgram(geometry_programs.points, "points", 1, "ShaderPoints");
case GL_LINES:
case GL_LINE_STRIP:
return LazyGeometryProgram(geometry_programs.lines, "lines", 2, "ShaderLines");
case GL_LINES_ADJACENCY:
case GL_LINE_STRIP_ADJACENCY:
return LazyGeometryProgram(geometry_programs.lines_adjacency, "lines_adjacency", 4,
"ShaderLinesAdjacency");
case GL_TRIANGLES:
case GL_TRIANGLE_STRIP:
case GL_TRIANGLE_FAN:
return LazyGeometryProgram(geometry_programs.triangles, "triangles", 3,
"ShaderTriangles");
case GL_TRIANGLES_ADJACENCY:
case GL_TRIANGLE_STRIP_ADJACENCY:
return LazyGeometryProgram(geometry_programs.triangles_adjacency, "triangles_adjacency",
6, "ShaderTrianglesAdjacency");
default:
UNREACHABLE_MSG("Unknown primitive mode.");
return LazyGeometryProgram(geometry_programs.points, "points", 1, "ShaderPoints");
}
}
/// Gets the GL program resource location for the specified resource, caching as needed
GLuint GetProgramResourceIndex(const GLShader::ConstBufferEntry& buffer);
/// Gets the GL program resource location for the specified resource, caching as needed
GLuint GetProgramResourceIndex(const GLShader::GlobalMemoryEntry& global_mem);
/// Gets the GL uniform location for the specified resource, caching as needed
GLint GetUniformLocation(const GLShader::SamplerEntry& sampler);
std::tuple<GLuint, BaseBindings> GetProgramHandle(GLenum primitive_mode,
BaseBindings base_bindings);
private:
/// Generates a geometry shader or returns one that already exists.
GLuint LazyGeometryProgram(OGLProgram& target_program, const std::string& glsl_topology,
u32 max_vertices, const std::string& debug_name);
void CalculateProperties();
VAddr addr;
std::size_t shader_length;
Maxwell::ShaderProgram program_type;
GLShader::ShaderSetup setup;
GLShader::ShaderEntries entries;
// Non-geometry program.
OGLProgram program;
// Geometry programs. These are needed because GLSL needs an input topology but it's not
// declared by the hardware. Workaround this issue by generating a different shader per input
// topology class.
struct {
std::string code;
struct GeometryPrograms {
OGLProgram points;
OGLProgram lines;
OGLProgram lines_adjacency;
OGLProgram triangles;
OGLProgram triangles_adjacency;
} geometry_programs;
};
std::string AllocateBindings(BaseBindings base_bindings);
GLuint GetGeometryShader(GLenum primitive_mode, BaseBindings base_bindings);
/// Generates a geometry shader or returns one that already exists.
GLuint LazyGeometryProgram(OGLProgram& target_program, BaseBindings base_bindings,
const std::string& glsl_topology, u32 max_vertices,
const std::string& debug_name);
void CalculateProperties();
VAddr addr{};
std::size_t shader_length{};
Maxwell::ShaderProgram program_type{};
GLShader::ShaderSetup setup;
GLShader::ShaderEntries entries;
std::string code;
std::map<BaseBindings, OGLProgram> programs;
std::map<BaseBindings, GeometryPrograms> geometry_programs;
std::map<u32, GLuint> cbuf_resource_cache;
std::map<u32, GLuint> gmem_resource_cache;

11
src/video_core/renderer_opengl/gl_shader_decompiler.cpp
View file

@ -374,7 +374,8 @@ private:
void DeclareConstantBuffers() {
for (const auto& entry : ir.GetConstantBuffers()) {
const auto [index, size] = entry;
code.AddLine("layout (std140) uniform " + GetConstBufferBlock(index) + " {");
code.AddLine("layout (std140, binding = CBUF_BINDING_" + std::to_string(index) +
") uniform " + GetConstBufferBlock(index) + " {");
code.AddLine(" vec4 " + GetConstBuffer(index) + "[MAX_CONSTBUFFER_ELEMENTS];");
code.AddLine("};");
code.AddNewLine();
@ -383,7 +384,10 @@ private:
void DeclareGlobalMemory() {
for (const auto& entry : ir.GetGlobalMemoryBases()) {
code.AddLine("layout (std430) buffer " + GetGlobalMemoryBlock(entry) + " {");
const std::string binding =
fmt::format("GMEM_BINDING_{}_{}", entry.cbuf_index, entry.cbuf_offset);
code.AddLine("layout (std430, binding = " + binding + ") buffer " +
GetGlobalMemoryBlock(entry) + " {");
code.AddLine(" float " + GetGlobalMemory(entry) + "[MAX_GLOBALMEMORY_ELEMENTS];");
code.AddLine("};");
code.AddNewLine();
@ -413,7 +417,8 @@ private:
if (sampler.IsShadow())
sampler_type += "Shadow";
code.AddLine("uniform " + sampler_type + ' ' + GetSampler(sampler) + ';');
code.AddLine("layout (binding = SAMPLER_BINDING_" + std::to_string(sampler.GetIndex()) +
") uniform " + sampler_type + ' ' + GetSampler(sampler) + ';');
}
if (!samplers.empty())
code.AddNewLine();

12
src/video_core/renderer_opengl/gl_shader_decompiler.h
View file

@ -38,10 +38,6 @@ public:
return index;
}
u32 GetHash() const {
return (static_cast<u32>(stage) << 16) | index;
}
private:
std::string name;
Maxwell::ShaderStage stage{};
@ -62,10 +58,6 @@ public:
return stage;
}
u32 GetHash() const {
return (static_cast<u32>(stage) << 16) | static_cast<u32>(GetIndex());
}
private:
std::string name;
Maxwell::ShaderStage stage{};
@ -93,10 +85,6 @@ public:
return stage;
}
u32 GetHash() const {
return (static_cast<u32>(stage) << 24) | (cbuf_index << 16) | cbuf_offset;
}
private:
u32 cbuf_index{};
u32 cbuf_offset{};

13
src/video_core/renderer_opengl/gl_shader_gen.cpp
View file

@ -20,15 +20,14 @@ static constexpr u32 PROGRAM_OFFSET{10};
ProgramResult GenerateVertexShader(const ShaderSetup& setup) {
const std::string id = fmt::format("{:016x}", setup.program.unique_identifier);
std::string out = "#version 430 core\n";
out += "#extension GL_ARB_separate_shader_objects : enable\n\n";
std::string out = "#extension GL_ARB_separate_shader_objects : enable\n\n";
out += "// Shader Unique Id: VS" + id + "\n\n";
out += GetCommonDeclarations();
out += R"(
layout (location = 0) out vec4 position;
layout(std140) uniform vs_config {
layout (std140, binding = EMULATION_UBO_BINDING) uniform vs_config {
vec4 viewport_flip;
uvec4 config_pack; // instance_id, flip_stage, y_direction, padding
uvec4 alpha_test;
@ -78,7 +77,6 @@ void main() {
}
ProgramResult GenerateGeometryShader(const ShaderSetup& setup) {
// Version is intentionally skipped in shader generation, it's added by the lazy compilation.
const std::string id = fmt::format("{:016x}", setup.program.unique_identifier);
std::string out = "#extension GL_ARB_separate_shader_objects : enable\n\n";
@ -89,7 +87,7 @@ ProgramResult GenerateGeometryShader(const ShaderSetup& setup) {
layout (location = 0) in vec4 gs_position[];
layout (location = 0) out vec4 position;
layout (std140) uniform gs_config {
layout (std140, binding = EMULATION_UBO_BINDING) uniform gs_config {
vec4 viewport_flip;
uvec4 config_pack; // instance_id, flip_stage, y_direction, padding
uvec4 alpha_test;
@ -112,8 +110,7 @@ void main() {
ProgramResult GenerateFragmentShader(const ShaderSetup& setup) {
const std::string id = fmt::format("{:016x}", setup.program.unique_identifier);
std::string out = "#version 430 core\n";
out += "#extension GL_ARB_separate_shader_objects : enable\n\n";
std::string out = "#extension GL_ARB_separate_shader_objects : enable\n\n";
out += "// Shader Unique Id: FS" + id + "\n\n";
out += GetCommonDeclarations();
@ -129,7 +126,7 @@ layout (location = 7) out vec4 FragColor7;
layout (location = 0) in vec4 position;
layout (std140) uniform fs_config {
layout (std140, binding = EMULATION_UBO_BINDING) uniform fs_config {
vec4 viewport_flip;
uvec4 config_pack; // instance_id, flip_stage, y_direction, padding
uvec4 alpha_test;