2018-08-23 23:30:27 +02:00
|
|
|
// Copyright 2018 yuzu Emulator Project
|
|
|
|
// Licensed under GPLv2 or any later version
|
|
|
|
// Refer to the license.txt file included.
|
|
|
|
|
|
|
|
#include "common/assert.h"
|
|
|
|
#include "core/core.h"
|
|
|
|
#include "core/memory.h"
|
|
|
|
#include "video_core/engines/maxwell_3d.h"
|
|
|
|
#include "video_core/renderer_opengl/gl_shader_cache.h"
|
|
|
|
#include "video_core/renderer_opengl/gl_shader_manager.h"
|
|
|
|
|
|
|
|
namespace OpenGL {
|
|
|
|
|
|
|
|
/// Gets the address for the specified shader stage program
|
|
|
|
static Tegra::GPUVAddr GetShaderAddress(Maxwell::ShaderProgram program) {
|
|
|
|
auto& gpu = Core::System::GetInstance().GPU().Maxwell3D();
|
|
|
|
auto& shader_config = gpu.regs.shader_config[static_cast<size_t>(program)];
|
2018-08-28 17:20:39 +02:00
|
|
|
|
2018-08-23 23:30:27 +02:00
|
|
|
return gpu.regs.code_address.CodeAddress() + shader_config.offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
/// Gets the shader program code from memory for the specified address
|
|
|
|
static GLShader::ProgramCode GetShaderCode(Tegra::GPUVAddr addr) {
|
|
|
|
auto& gpu = Core::System::GetInstance().GPU().Maxwell3D();
|
|
|
|
|
|
|
|
GLShader::ProgramCode program_code(GLShader::MAX_PROGRAM_CODE_LENGTH);
|
|
|
|
const boost::optional<VAddr> cpu_address{gpu.memory_manager.GpuToCpuAddress(addr)};
|
|
|
|
Memory::ReadBlock(*cpu_address, program_code.data(), program_code.size() * sizeof(u64));
|
|
|
|
|
|
|
|
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, size_t expected_size) {
|
|
|
|
const GLuint ub_index = glGetUniformBlockIndex(shader, name);
|
|
|
|
if (ub_index == GL_INVALID_INDEX) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
GLint ub_size = 0;
|
|
|
|
glGetActiveUniformBlockiv(shader, ub_index, GL_UNIFORM_BLOCK_DATA_SIZE, &ub_size);
|
|
|
|
ASSERT_MSG(static_cast<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(Tegra::GPUVAddr 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:
|
|
|
|
// VertexB is always enabled, so when VertexA is enabled, we have two vertex shaders.
|
|
|
|
// Conventional HW does not support this, so we combine VertexA and VertexB into one
|
|
|
|
// stage here.
|
|
|
|
setup.SetProgramB(GetShaderCode(GetShaderAddress(Maxwell::ShaderProgram::VertexB)));
|
|
|
|
case Maxwell::ShaderProgram::VertexB:
|
|
|
|
program_result = GLShader::GenerateVertexShader(setup);
|
|
|
|
gl_type = GL_VERTEX_SHADER;
|
|
|
|
break;
|
|
|
|
case Maxwell::ShaderProgram::Fragment:
|
|
|
|
program_result = GLShader::GenerateFragmentShader(setup);
|
|
|
|
gl_type = GL_FRAGMENT_SHADER;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
LOG_CRITICAL(HW_GPU, "Unimplemented program_type={}", static_cast<u32>(program_type));
|
|
|
|
UNREACHABLE();
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
entries = program_result.second;
|
|
|
|
|
|
|
|
OGLShader shader;
|
|
|
|
shader.Create(program_result.first.c_str(), gl_type);
|
|
|
|
program.Create(true, shader.handle);
|
|
|
|
SetShaderUniformBlockBindings(program.handle);
|
|
|
|
}
|
|
|
|
|
|
|
|
GLuint CachedShader::GetProgramResourceIndex(const std::string& name) {
|
|
|
|
auto search{resource_cache.find(name)};
|
|
|
|
if (search == resource_cache.end()) {
|
|
|
|
const GLuint index{
|
|
|
|
glGetProgramResourceIndex(program.handle, GL_UNIFORM_BLOCK, name.c_str())};
|
|
|
|
resource_cache[name] = index;
|
|
|
|
return index;
|
|
|
|
}
|
|
|
|
|
|
|
|
return search->second;
|
|
|
|
}
|
|
|
|
|
|
|
|
GLint CachedShader::GetUniformLocation(const std::string& name) {
|
|
|
|
auto search{uniform_cache.find(name)};
|
|
|
|
if (search == uniform_cache.end()) {
|
|
|
|
const GLint index{glGetUniformLocation(program.handle, name.c_str())};
|
|
|
|
uniform_cache[name] = index;
|
|
|
|
return index;
|
|
|
|
}
|
|
|
|
|
|
|
|
return search->second;
|
|
|
|
}
|
|
|
|
|
|
|
|
Shader ShaderCacheOpenGL::GetStageProgram(Maxwell::ShaderProgram program) {
|
|
|
|
const Tegra::GPUVAddr program_addr{GetShaderAddress(program)};
|
|
|
|
|
|
|
|
// Look up shader in the cache based on address
|
|
|
|
Shader shader{TryGet(program_addr)};
|
|
|
|
|
|
|
|
if (!shader) {
|
|
|
|
// No shader found - create a new one
|
|
|
|
shader = std::make_shared<CachedShader>(program_addr, program);
|
|
|
|
Register(shader);
|
|
|
|
}
|
|
|
|
|
|
|
|
return shader;
|
|
|
|
}
|
|
|
|
|
|
|
|
} // namespace OpenGL
|