Merge pull request #1006 from degasus/stream_buffer
GL renderer: Pick the streambuffer from citra and use them.
This commit is contained in:
bunnei
GitHub
commit
b8c1dca62f
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@ -36,30 +36,21 @@ MICROPROFILE_DEFINE(OpenGL_Drawing, "OpenGL", "Drawing", MP_RGB(128, 128, 192));
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MICROPROFILE_DEFINE(OpenGL_Blits, "OpenGL", "Blits", MP_RGB(100, 100, 255));
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MICROPROFILE_DEFINE(OpenGL_CacheManagement, "OpenGL", "Cache Mgmt", MP_RGB(100, 255, 100));
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RasterizerOpenGL::RasterizerOpenGL(Core::Frontend::EmuWindow& window) : emu_window{window} {
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RasterizerOpenGL::RasterizerOpenGL(Core::Frontend::EmuWindow& window)
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: emu_window{window}, stream_buffer(GL_ARRAY_BUFFER, STREAM_BUFFER_SIZE) {
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// Create sampler objects
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for (size_t i = 0; i < texture_samplers.size(); ++i) {
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texture_samplers[i].Create();
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state.texture_units[i].sampler = texture_samplers[i].sampler.handle;
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}
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// Create SSBOs
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for (size_t stage = 0; stage < ssbos.size(); ++stage) {
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for (size_t buffer = 0; buffer < ssbos[stage].size(); ++buffer) {
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ssbos[stage][buffer].Create();
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state.draw.const_buffers[stage][buffer].ssbo = ssbos[stage][buffer].handle;
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}
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}
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GLint ext_num;
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glGetIntegerv(GL_NUM_EXTENSIONS, &ext_num);
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for (GLint i = 0; i < ext_num; i++) {
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const std::string_view extension{
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reinterpret_cast<const char*>(glGetStringi(GL_EXTENSIONS, i))};
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if (extension == "GL_ARB_buffer_storage") {
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has_ARB_buffer_storage = true;
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} else if (extension == "GL_ARB_direct_state_access") {
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if (extension == "GL_ARB_direct_state_access") {
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has_ARB_direct_state_access = true;
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} else if (extension == "GL_ARB_separate_shader_objects") {
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has_ARB_separate_shader_objects = true;
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@ -86,47 +77,31 @@ RasterizerOpenGL::RasterizerOpenGL(Core::Frontend::EmuWindow& window) : emu_wind
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hw_vao.Create();
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stream_buffer = OGLStreamBuffer::MakeBuffer(has_ARB_buffer_storage, GL_ARRAY_BUFFER);
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stream_buffer->Create(STREAM_BUFFER_SIZE, STREAM_BUFFER_SIZE / 2);
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state.draw.vertex_buffer = stream_buffer->GetHandle();
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state.draw.vertex_buffer = stream_buffer.GetHandle();
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shader_program_manager = std::make_unique<GLShader::ProgramManager>();
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state.draw.shader_program = 0;
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state.draw.vertex_array = hw_vao.handle;
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state.Apply();
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, stream_buffer->GetHandle());
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for (unsigned index = 0; index < uniform_buffers.size(); ++index) {
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auto& buffer = uniform_buffers[index];
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buffer.Create();
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glBindBuffer(GL_UNIFORM_BUFFER, buffer.handle);
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glBufferData(GL_UNIFORM_BUFFER, sizeof(GLShader::MaxwellUniformData), nullptr,
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GL_STREAM_COPY);
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glBindBufferBase(GL_UNIFORM_BUFFER, index, buffer.handle);
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}
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, stream_buffer.GetHandle());
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glEnable(GL_BLEND);
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glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &uniform_buffer_alignment);
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LOG_CRITICAL(Render_OpenGL, "Sync fixed function OpenGL state here!");
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}
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RasterizerOpenGL::~RasterizerOpenGL() {
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if (stream_buffer != nullptr) {
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state.draw.vertex_buffer = stream_buffer->GetHandle();
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state.Apply();
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stream_buffer->Release();
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}
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}
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RasterizerOpenGL::~RasterizerOpenGL() {}
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std::pair<u8*, GLintptr> RasterizerOpenGL::SetupVertexArrays(u8* array_ptr,
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GLintptr buffer_offset) {
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MICROPROFILE_SCOPE(OpenGL_VAO);
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const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs;
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const auto& memory_manager = Core::System::GetInstance().GPU().memory_manager;
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state.draw.vertex_array = hw_vao.handle;
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state.draw.vertex_buffer = stream_buffer->GetHandle();
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state.draw.vertex_buffer = stream_buffer.GetHandle();
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state.Apply();
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// Upload all guest vertex arrays sequentially to our buffer
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@ -141,16 +116,15 @@ std::pair<u8*, GLintptr> RasterizerOpenGL::SetupVertexArrays(u8* array_ptr,
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ASSERT(end > start);
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u64 size = end - start + 1;
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// Copy vertex array data
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Memory::ReadBlock(*memory_manager->GpuToCpuAddress(start), array_ptr, size);
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GLintptr vertex_buffer_offset;
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std::tie(array_ptr, buffer_offset, vertex_buffer_offset) =
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UploadMemory(array_ptr, buffer_offset, start, size);
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// Bind the vertex array to the buffer at the current offset.
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glBindVertexBuffer(index, stream_buffer->GetHandle(), buffer_offset, vertex_array.stride);
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glBindVertexBuffer(index, stream_buffer.GetHandle(), vertex_buffer_offset,
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vertex_array.stride);
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ASSERT_MSG(vertex_array.divisor == 0, "Vertex buffer divisor unimplemented");
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array_ptr += size;
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buffer_offset += size;
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}
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// Use the vertex array as-is, assumes that the data is formatted correctly for OpenGL.
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@ -201,22 +175,12 @@ static GLShader::ProgramCode GetShaderProgramCode(Maxwell::ShaderProgram program
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return program_code;
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}
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void RasterizerOpenGL::SetupShaders(u8* buffer_ptr, GLintptr buffer_offset) {
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// Helper function for uploading uniform data
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const auto copy_buffer = [&](GLuint handle, GLintptr offset, GLsizeiptr size) {
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if (has_ARB_direct_state_access) {
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glCopyNamedBufferSubData(stream_buffer->GetHandle(), handle, offset, 0, size);
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} else {
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glBindBuffer(GL_COPY_WRITE_BUFFER, handle);
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glCopyBufferSubData(GL_ARRAY_BUFFER, GL_COPY_WRITE_BUFFER, offset, 0, size);
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}
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};
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std::pair<u8*, GLintptr> RasterizerOpenGL::SetupShaders(u8* buffer_ptr, GLintptr buffer_offset) {
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auto& gpu = Core::System::GetInstance().GPU().Maxwell3D();
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// Next available bindpoints to use when uploading the const buffers and textures to the GLSL
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// shaders. The constbuffer bindpoint starts after the shader stage configuration bind points.
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u32 current_constbuffer_bindpoint = static_cast<u32>(uniform_buffers.size());
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u32 current_constbuffer_bindpoint = Tegra::Engines::Maxwell3D::Regs::MaxShaderStage;
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u32 current_texture_bindpoint = 0;
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for (size_t index = 0; index < Maxwell::MaxShaderProgram; ++index) {
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@ -228,22 +192,21 @@ void RasterizerOpenGL::SetupShaders(u8* buffer_ptr, GLintptr buffer_offset) {
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continue;
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}
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std::tie(buffer_ptr, buffer_offset) =
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AlignBuffer(buffer_ptr, buffer_offset, static_cast<size_t>(uniform_buffer_alignment));
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const size_t stage{index == 0 ? 0 : index - 1}; // Stage indices are 0 - 5
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GLShader::MaxwellUniformData ubo{};
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ubo.SetFromRegs(gpu.state.shader_stages[stage]);
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std::memcpy(buffer_ptr, &ubo, sizeof(ubo));
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// Flush the buffer so that the GPU can see the data we just wrote.
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glFlushMappedBufferRange(GL_ARRAY_BUFFER, buffer_offset, sizeof(ubo));
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// Bind the buffer
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glBindBufferRange(GL_UNIFORM_BUFFER, stage, stream_buffer.GetHandle(), buffer_offset,
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sizeof(ubo));
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// Upload uniform data as one UBO per stage
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const GLintptr ubo_offset = buffer_offset;
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copy_buffer(uniform_buffers[stage].handle, ubo_offset,
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sizeof(GLShader::MaxwellUniformData));
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buffer_ptr += sizeof(GLShader::MaxwellUniformData);
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buffer_offset += sizeof(GLShader::MaxwellUniformData);
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buffer_ptr += sizeof(ubo);
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buffer_offset += sizeof(ubo);
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GLShader::ShaderSetup setup{GetShaderProgramCode(program)};
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GLShader::ShaderEntries shader_resources;
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@ -282,8 +245,8 @@ void RasterizerOpenGL::SetupShaders(u8* buffer_ptr, GLintptr buffer_offset) {
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static_cast<Maxwell::ShaderStage>(stage));
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// Configure the const buffers for this shader stage.
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current_constbuffer_bindpoint =
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SetupConstBuffers(static_cast<Maxwell::ShaderStage>(stage), gl_stage_program,
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std::tie(buffer_ptr, buffer_offset, current_constbuffer_bindpoint) = SetupConstBuffers(
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buffer_ptr, buffer_offset, static_cast<Maxwell::ShaderStage>(stage), gl_stage_program,
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current_constbuffer_bindpoint, shader_resources.const_buffer_entries);
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// Configure the textures for this shader stage.
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@ -299,6 +262,8 @@ void RasterizerOpenGL::SetupShaders(u8* buffer_ptr, GLintptr buffer_offset) {
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}
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shader_program_manager->UseTrivialGeometryShader();
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return {buffer_ptr, buffer_offset};
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}
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size_t RasterizerOpenGL::CalculateVertexArraysSize() const {
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@ -432,6 +397,31 @@ void RasterizerOpenGL::Clear() {
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}
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}
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std::pair<u8*, GLintptr> RasterizerOpenGL::AlignBuffer(u8* buffer_ptr, GLintptr buffer_offset,
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size_t alignment) {
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// Align the offset, not the mapped pointer
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GLintptr offset_aligned =
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static_cast<GLintptr>(Common::AlignUp(static_cast<size_t>(buffer_offset), alignment));
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return {buffer_ptr + (offset_aligned - buffer_offset), offset_aligned};
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}
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std::tuple<u8*, GLintptr, GLintptr> RasterizerOpenGL::UploadMemory(u8* buffer_ptr,
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GLintptr buffer_offset,
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Tegra::GPUVAddr gpu_addr,
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size_t size, size_t alignment) {
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std::tie(buffer_ptr, buffer_offset) = AlignBuffer(buffer_ptr, buffer_offset, alignment);
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GLintptr uploaded_offset = buffer_offset;
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const auto& memory_manager = Core::System::GetInstance().GPU().memory_manager;
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const boost::optional<VAddr> cpu_addr{memory_manager->GpuToCpuAddress(gpu_addr)};
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Memory::ReadBlock(*cpu_addr, buffer_ptr, size);
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buffer_ptr += size;
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buffer_offset += size;
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return {buffer_ptr, buffer_offset, uploaded_offset};
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}
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void RasterizerOpenGL::DrawArrays() {
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if (accelerate_draw == AccelDraw::Disabled)
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return;
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@ -456,7 +446,7 @@ void RasterizerOpenGL::DrawArrays() {
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const u64 index_buffer_size{regs.index_array.count * regs.index_array.FormatSizeInBytes()};
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const unsigned vertex_num{is_indexed ? regs.index_array.count : regs.vertex_buffer.count};
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state.draw.vertex_buffer = stream_buffer->GetHandle();
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state.draw.vertex_buffer = stream_buffer.GetHandle();
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state.Apply();
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size_t buffer_size = CalculateVertexArraysSize();
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@ -466,41 +456,31 @@ void RasterizerOpenGL::DrawArrays() {
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}
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// Uniform space for the 5 shader stages
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buffer_size = Common::AlignUp<size_t>(buffer_size, 4) +
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sizeof(GLShader::MaxwellUniformData) * Maxwell::MaxShaderStage;
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buffer_size =
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Common::AlignUp<size_t>(buffer_size, 4) +
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(sizeof(GLShader::MaxwellUniformData) + uniform_buffer_alignment) * Maxwell::MaxShaderStage;
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// Add space for at least 18 constant buffers
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buffer_size += Maxwell::MaxConstBuffers * (MaxConstbufferSize + uniform_buffer_alignment);
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u8* buffer_ptr;
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GLintptr buffer_offset;
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std::tie(buffer_ptr, buffer_offset) =
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stream_buffer->Map(static_cast<GLsizeiptr>(buffer_size), 4);
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std::tie(buffer_ptr, buffer_offset, std::ignore) =
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stream_buffer.Map(static_cast<GLsizeiptr>(buffer_size), 4);
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u8* buffer_ptr_base = buffer_ptr;
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u8* offseted_buffer;
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std::tie(offseted_buffer, buffer_offset) = SetupVertexArrays(buffer_ptr, buffer_offset);
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offseted_buffer =
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reinterpret_cast<u8*>(Common::AlignUp(reinterpret_cast<size_t>(offseted_buffer), 4));
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buffer_offset = Common::AlignUp<size_t>(buffer_offset, 4);
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std::tie(buffer_ptr, buffer_offset) = SetupVertexArrays(buffer_ptr, buffer_offset);
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// If indexed mode, copy the index buffer
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GLintptr index_buffer_offset = 0;
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if (is_indexed) {
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const auto& memory_manager = Core::System::GetInstance().GPU().memory_manager;
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const boost::optional<VAddr> index_data_addr{
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memory_manager->GpuToCpuAddress(regs.index_array.StartAddress())};
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Memory::ReadBlock(*index_data_addr, offseted_buffer, index_buffer_size);
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index_buffer_offset = buffer_offset;
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offseted_buffer += index_buffer_size;
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buffer_offset += index_buffer_size;
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std::tie(buffer_ptr, buffer_offset, index_buffer_offset) = UploadMemory(
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buffer_ptr, buffer_offset, regs.index_array.StartAddress(), index_buffer_size);
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}
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offseted_buffer =
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reinterpret_cast<u8*>(Common::AlignUp(reinterpret_cast<size_t>(offseted_buffer), 4));
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buffer_offset = Common::AlignUp<size_t>(buffer_offset, 4);
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std::tie(buffer_ptr, buffer_offset) = SetupShaders(buffer_ptr, buffer_offset);
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SetupShaders(offseted_buffer, buffer_offset);
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stream_buffer->Unmap();
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stream_buffer.Unmap(buffer_ptr - buffer_ptr_base);
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shader_program_manager->ApplyTo(state);
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state.Apply();
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@ -647,36 +627,23 @@ void RasterizerOpenGL::SamplerInfo::SyncWithConfig(const Tegra::Texture::TSCEntr
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}
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}
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u32 RasterizerOpenGL::SetupConstBuffers(Maxwell::ShaderStage stage, GLuint program,
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u32 current_bindpoint,
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const std::vector<GLShader::ConstBufferEntry>& entries) {
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std::tuple<u8*, GLintptr, u32> RasterizerOpenGL::SetupConstBuffers(
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u8* buffer_ptr, GLintptr buffer_offset, Maxwell::ShaderStage stage, GLuint program,
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u32 current_bindpoint, const std::vector<GLShader::ConstBufferEntry>& entries) {
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const auto& gpu = Core::System::GetInstance().GPU();
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const auto& maxwell3d = gpu.Maxwell3D();
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// Reset all buffer draw state for this stage.
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for (auto& buffer : state.draw.const_buffers[static_cast<size_t>(stage)]) {
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buffer.bindpoint = 0;
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buffer.enabled = false;
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}
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// Upload only the enabled buffers from the 16 constbuffers of each shader stage
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const auto& shader_stage = maxwell3d.state.shader_stages[static_cast<size_t>(stage)];
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for (u32 bindpoint = 0; bindpoint < entries.size(); ++bindpoint) {
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const auto& used_buffer = entries[bindpoint];
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const auto& buffer = shader_stage.const_buffers[used_buffer.GetIndex()];
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auto& buffer_draw_state =
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state.draw.const_buffers[static_cast<size_t>(stage)][used_buffer.GetIndex()];
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if (!buffer.enabled) {
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continue;
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}
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buffer_draw_state.enabled = true;
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buffer_draw_state.bindpoint = current_bindpoint + bindpoint;
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boost::optional<VAddr> addr = gpu.memory_manager->GpuToCpuAddress(buffer.address);
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size_t size = 0;
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if (used_buffer.IsIndirect()) {
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@ -698,25 +665,26 @@ u32 RasterizerOpenGL::SetupConstBuffers(Maxwell::ShaderStage stage, GLuint progr
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size = Common::AlignUp(size, sizeof(GLvec4));
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ASSERT_MSG(size <= MaxConstbufferSize, "Constbuffer too big");
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std::vector<u8> data(size);
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Memory::ReadBlock(*addr, data.data(), data.size());
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GLintptr const_buffer_offset;
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std::tie(buffer_ptr, buffer_offset, const_buffer_offset) =
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UploadMemory(buffer_ptr, buffer_offset, buffer.address, size,
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static_cast<size_t>(uniform_buffer_alignment));
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glBindBuffer(GL_UNIFORM_BUFFER, buffer_draw_state.ssbo);
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glBufferData(GL_UNIFORM_BUFFER, data.size(), data.data(), GL_DYNAMIC_DRAW);
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glBindBuffer(GL_UNIFORM_BUFFER, 0);
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glBindBufferRange(GL_UNIFORM_BUFFER, current_bindpoint + bindpoint,
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stream_buffer.GetHandle(), const_buffer_offset, size);
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// Now configure the bindpoint of the buffer inside the shader
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const std::string buffer_name = used_buffer.GetName();
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const GLuint index =
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glGetProgramResourceIndex(program, GL_UNIFORM_BLOCK, buffer_name.c_str());
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if (index != GL_INVALID_INDEX) {
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glUniformBlockBinding(program, index, buffer_draw_state.bindpoint);
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glUniformBlockBinding(program, index, current_bindpoint + bindpoint);
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}
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}
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state.Apply();
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return current_bindpoint + static_cast<u32>(entries.size());
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return {buffer_ptr, buffer_offset, current_bindpoint + static_cast<u32>(entries.size())};
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}
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u32 RasterizerOpenGL::SetupTextures(Maxwell::ShaderStage stage, GLuint program, u32 current_unit,
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@ -7,6 +7,7 @@
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#include <array>
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#include <cstddef>
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#include <memory>
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#include <tuple>
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#include <utility>
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#include <vector>
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#include <glad/glad.h>
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@ -100,8 +101,9 @@ private:
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* @param entries Vector describing the buffers that are actually used in the guest shader.
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* @returns The next available bindpoint for use in the next shader stage.
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*/
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u32 SetupConstBuffers(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage, GLuint program,
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u32 current_bindpoint,
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std::tuple<u8*, GLintptr, u32> SetupConstBuffers(
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u8* buffer_ptr, GLintptr buffer_offset, Tegra::Engines::Maxwell3D::Regs::ShaderStage stage,
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GLuint program, u32 current_bindpoint,
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const std::vector<GLShader::ConstBufferEntry>& entries);
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/*
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@ -139,7 +141,6 @@ private:
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/// Syncs the blend state to match the guest state
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void SyncBlendState();
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bool has_ARB_buffer_storage = false;
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bool has_ARB_direct_state_access = false;
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bool has_ARB_separate_shader_objects = false;
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bool has_ARB_vertex_attrib_binding = false;
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@ -155,22 +156,24 @@ private:
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OGLVertexArray hw_vao;
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|
||||
std::array<SamplerInfo, GLShader::NumTextureSamplers> texture_samplers;
|
||||
std::array<std::array<OGLBuffer, Tegra::Engines::Maxwell3D::Regs::MaxConstBuffers>,
|
||||
Tegra::Engines::Maxwell3D::Regs::MaxShaderStage>
|
||||
ssbos;
|
||||
|
||||
static constexpr size_t STREAM_BUFFER_SIZE = 128 * 1024 * 1024;
|
||||
std::unique_ptr<OGLStreamBuffer> stream_buffer;
|
||||
OGLStreamBuffer stream_buffer;
|
||||
OGLBuffer uniform_buffer;
|
||||
OGLFramebuffer framebuffer;
|
||||
GLint uniform_buffer_alignment;
|
||||
|
||||
size_t CalculateVertexArraysSize() const;
|
||||
|
||||
std::pair<u8*, GLintptr> SetupVertexArrays(u8* array_ptr, GLintptr buffer_offset);
|
||||
|
||||
std::array<OGLBuffer, Tegra::Engines::Maxwell3D::Regs::MaxShaderStage> uniform_buffers;
|
||||
std::pair<u8*, GLintptr> SetupShaders(u8* buffer_ptr, GLintptr buffer_offset);
|
||||
|
||||
void SetupShaders(u8* buffer_ptr, GLintptr buffer_offset);
|
||||
std::pair<u8*, GLintptr> AlignBuffer(u8* buffer_ptr, GLintptr buffer_offset, size_t alignment);
|
||||
|
||||
std::tuple<u8*, GLintptr, GLintptr> UploadMemory(u8* buffer_ptr, GLintptr buffer_offset,
|
||||
Tegra::GPUVAddr gpu_addr, size_t size,
|
||||
size_t alignment = 4);
|
||||
|
||||
enum class AccelDraw { Disabled, Arrays, Indexed };
|
||||
AccelDraw accelerate_draw = AccelDraw::Disabled;
|
||||
|
|
|
|||
|
|
@ -203,21 +203,6 @@ void OpenGLState::Apply() const {
|
|||
}
|
||||
}
|
||||
|
||||
// Constbuffers
|
||||
for (std::size_t stage = 0; stage < draw.const_buffers.size(); ++stage) {
|
||||
for (std::size_t buffer_id = 0; buffer_id < draw.const_buffers[stage].size(); ++buffer_id) {
|
||||
const auto& current = cur_state.draw.const_buffers[stage][buffer_id];
|
||||
const auto& new_state = draw.const_buffers[stage][buffer_id];
|
||||
|
||||
if (current.enabled != new_state.enabled || current.bindpoint != new_state.bindpoint ||
|
||||
current.ssbo != new_state.ssbo) {
|
||||
if (new_state.enabled) {
|
||||
glBindBufferBase(GL_UNIFORM_BUFFER, new_state.bindpoint, new_state.ssbo);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Framebuffer
|
||||
if (draw.read_framebuffer != cur_state.draw.read_framebuffer) {
|
||||
glBindFramebuffer(GL_READ_FRAMEBUFFER, draw.read_framebuffer);
|
||||
|
|
|
|||
|
|
@ -119,12 +119,6 @@ public:
|
|||
GLuint uniform_buffer; // GL_UNIFORM_BUFFER_BINDING
|
||||
GLuint shader_program; // GL_CURRENT_PROGRAM
|
||||
GLuint program_pipeline; // GL_PROGRAM_PIPELINE_BINDING
|
||||
struct ConstBufferConfig {
|
||||
bool enabled = false;
|
||||
GLuint bindpoint;
|
||||
GLuint ssbo;
|
||||
};
|
||||
std::array<std::array<ConstBufferConfig, Regs::MaxConstBuffers>, 5> const_buffers;
|
||||
} draw;
|
||||
|
||||
struct {
|
||||
|
|
|
|||
|
|
@ -9,174 +9,91 @@
|
|||
#include "video_core/renderer_opengl/gl_state.h"
|
||||
#include "video_core/renderer_opengl/gl_stream_buffer.h"
|
||||
|
||||
class OrphanBuffer : public OGLStreamBuffer {
|
||||
public:
|
||||
explicit OrphanBuffer(GLenum target) : OGLStreamBuffer(target) {}
|
||||
~OrphanBuffer() override;
|
||||
OGLStreamBuffer::OGLStreamBuffer(GLenum target, GLsizeiptr size, bool prefer_coherent)
|
||||
: gl_target(target), buffer_size(size) {
|
||||
gl_buffer.Create();
|
||||
glBindBuffer(gl_target, gl_buffer.handle);
|
||||
|
||||
private:
|
||||
void Create(size_t size, size_t sync_subdivide) override;
|
||||
void Release() override;
|
||||
GLsizeiptr allocate_size = size;
|
||||
if (target == GL_ARRAY_BUFFER) {
|
||||
// On AMD GPU there is a strange crash in indexed drawing. The crash happens when the buffer
|
||||
// read position is near the end and is an out-of-bound access to the vertex buffer. This is
|
||||
// probably a bug in the driver and is related to the usage of vec3<byte> attributes in the
|
||||
// vertex array. Doubling the allocation size for the vertex buffer seems to avoid the
|
||||
// crash.
|
||||
allocate_size *= 2;
|
||||
}
|
||||
|
||||
std::pair<u8*, GLintptr> Map(size_t size, size_t alignment) override;
|
||||
void Unmap() override;
|
||||
if (GLAD_GL_ARB_buffer_storage) {
|
||||
persistent = true;
|
||||
coherent = prefer_coherent;
|
||||
GLbitfield flags =
|
||||
GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | (coherent ? GL_MAP_COHERENT_BIT : 0);
|
||||
glBufferStorage(gl_target, allocate_size, nullptr, flags);
|
||||
mapped_ptr = static_cast<u8*>(glMapBufferRange(
|
||||
gl_target, 0, buffer_size, flags | (coherent ? 0 : GL_MAP_FLUSH_EXPLICIT_BIT)));
|
||||
} else {
|
||||
glBufferData(gl_target, allocate_size, nullptr, GL_STREAM_DRAW);
|
||||
}
|
||||
}
|
||||
|
||||
std::vector<u8> data;
|
||||
};
|
||||
|
||||
class StorageBuffer : public OGLStreamBuffer {
|
||||
public:
|
||||
explicit StorageBuffer(GLenum target) : OGLStreamBuffer(target) {}
|
||||
~StorageBuffer() override;
|
||||
|
||||
private:
|
||||
void Create(size_t size, size_t sync_subdivide) override;
|
||||
void Release() override;
|
||||
|
||||
std::pair<u8*, GLintptr> Map(size_t size, size_t alignment) override;
|
||||
void Unmap() override;
|
||||
|
||||
struct Fence {
|
||||
OGLSync sync;
|
||||
size_t offset;
|
||||
};
|
||||
std::deque<Fence> head;
|
||||
std::deque<Fence> tail;
|
||||
|
||||
u8* mapped_ptr;
|
||||
};
|
||||
|
||||
OGLStreamBuffer::OGLStreamBuffer(GLenum target) {
|
||||
gl_target = target;
|
||||
OGLStreamBuffer::~OGLStreamBuffer() {
|
||||
if (persistent) {
|
||||
glBindBuffer(gl_target, gl_buffer.handle);
|
||||
glUnmapBuffer(gl_target);
|
||||
}
|
||||
gl_buffer.Release();
|
||||
}
|
||||
|
||||
GLuint OGLStreamBuffer::GetHandle() const {
|
||||
return gl_buffer.handle;
|
||||
}
|
||||
|
||||
std::unique_ptr<OGLStreamBuffer> OGLStreamBuffer::MakeBuffer(bool storage_buffer, GLenum target) {
|
||||
if (storage_buffer) {
|
||||
return std::make_unique<StorageBuffer>(target);
|
||||
}
|
||||
return std::make_unique<OrphanBuffer>(target);
|
||||
GLsizeiptr OGLStreamBuffer::GetSize() const {
|
||||
return buffer_size;
|
||||
}
|
||||
|
||||
OrphanBuffer::~OrphanBuffer() {
|
||||
Release();
|
||||
}
|
||||
|
||||
void OrphanBuffer::Create(size_t size, size_t /*sync_subdivide*/) {
|
||||
buffer_pos = 0;
|
||||
buffer_size = size;
|
||||
data.resize(buffer_size);
|
||||
|
||||
if (gl_buffer.handle == 0) {
|
||||
gl_buffer.Create();
|
||||
glBindBuffer(gl_target, gl_buffer.handle);
|
||||
}
|
||||
|
||||
glBufferData(gl_target, static_cast<GLsizeiptr>(buffer_size), nullptr, GL_STREAM_DRAW);
|
||||
}
|
||||
|
||||
void OrphanBuffer::Release() {
|
||||
gl_buffer.Release();
|
||||
}
|
||||
|
||||
std::pair<u8*, GLintptr> OrphanBuffer::Map(size_t size, size_t alignment) {
|
||||
buffer_pos = Common::AlignUp(buffer_pos, alignment);
|
||||
|
||||
if (buffer_pos + size > buffer_size) {
|
||||
Create(std::max(buffer_size, size), 0);
|
||||
}
|
||||
|
||||
mapped_size = size;
|
||||
return std::make_pair(&data[buffer_pos], static_cast<GLintptr>(buffer_pos));
|
||||
}
|
||||
|
||||
void OrphanBuffer::Unmap() {
|
||||
glBufferSubData(gl_target, static_cast<GLintptr>(buffer_pos),
|
||||
static_cast<GLsizeiptr>(mapped_size), &data[buffer_pos]);
|
||||
buffer_pos += mapped_size;
|
||||
}
|
||||
|
||||
StorageBuffer::~StorageBuffer() {
|
||||
Release();
|
||||
}
|
||||
|
||||
void StorageBuffer::Create(size_t size, size_t sync_subdivide) {
|
||||
if (gl_buffer.handle != 0)
|
||||
return;
|
||||
|
||||
buffer_pos = 0;
|
||||
buffer_size = size;
|
||||
buffer_sync_subdivide = std::max<size_t>(sync_subdivide, 1);
|
||||
|
||||
gl_buffer.Create();
|
||||
glBindBuffer(gl_target, gl_buffer.handle);
|
||||
|
||||
glBufferStorage(gl_target, static_cast<GLsizeiptr>(buffer_size), nullptr,
|
||||
GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
|
||||
mapped_ptr = reinterpret_cast<u8*>(
|
||||
glMapBufferRange(gl_target, 0, static_cast<GLsizeiptr>(buffer_size),
|
||||
GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_FLUSH_EXPLICIT_BIT));
|
||||
}
|
||||
|
||||
void StorageBuffer::Release() {
|
||||
if (gl_buffer.handle == 0)
|
||||
return;
|
||||
|
||||
glUnmapBuffer(gl_target);
|
||||
|
||||
gl_buffer.Release();
|
||||
head.clear();
|
||||
tail.clear();
|
||||
}
|
||||
|
||||
std::pair<u8*, GLintptr> StorageBuffer::Map(size_t size, size_t alignment) {
|
||||
std::tuple<u8*, GLintptr, bool> OGLStreamBuffer::Map(GLsizeiptr size, GLintptr alignment) {
|
||||
ASSERT(size <= buffer_size);
|
||||
|
||||
OGLSync sync;
|
||||
|
||||
buffer_pos = Common::AlignUp(buffer_pos, alignment);
|
||||
size_t effective_offset = Common::AlignDown(buffer_pos, buffer_sync_subdivide);
|
||||
|
||||
if (!head.empty() &&
|
||||
(effective_offset > head.back().offset || buffer_pos + size > buffer_size)) {
|
||||
ASSERT(head.back().sync.handle == 0);
|
||||
head.back().sync.Create();
|
||||
}
|
||||
|
||||
if (buffer_pos + size > buffer_size) {
|
||||
if (!tail.empty()) {
|
||||
std::swap(sync, tail.back().sync);
|
||||
tail.clear();
|
||||
}
|
||||
std::swap(tail, head);
|
||||
buffer_pos = 0;
|
||||
effective_offset = 0;
|
||||
}
|
||||
|
||||
while (!tail.empty() && buffer_pos + size > tail.front().offset) {
|
||||
std::swap(sync, tail.front().sync);
|
||||
tail.pop_front();
|
||||
}
|
||||
|
||||
if (sync.handle != 0) {
|
||||
glClientWaitSync(sync.handle, GL_SYNC_FLUSH_COMMANDS_BIT, GL_TIMEOUT_IGNORED);
|
||||
sync.Release();
|
||||
}
|
||||
|
||||
if (head.empty() || effective_offset > head.back().offset) {
|
||||
head.emplace_back();
|
||||
head.back().offset = effective_offset;
|
||||
}
|
||||
|
||||
ASSERT(alignment <= buffer_size);
|
||||
mapped_size = size;
|
||||
return std::make_pair(&mapped_ptr[buffer_pos], static_cast<GLintptr>(buffer_pos));
|
||||
|
||||
if (alignment > 0) {
|
||||
buffer_pos = Common::AlignUp<size_t>(buffer_pos, alignment);
|
||||
}
|
||||
|
||||
bool invalidate = false;
|
||||
if (buffer_pos + size > buffer_size) {
|
||||
buffer_pos = 0;
|
||||
invalidate = true;
|
||||
|
||||
if (persistent) {
|
||||
glUnmapBuffer(gl_target);
|
||||
}
|
||||
}
|
||||
|
||||
if (invalidate | !persistent) {
|
||||
GLbitfield flags = GL_MAP_WRITE_BIT | (persistent ? GL_MAP_PERSISTENT_BIT : 0) |
|
||||
(coherent ? GL_MAP_COHERENT_BIT : GL_MAP_FLUSH_EXPLICIT_BIT) |
|
||||
(invalidate ? GL_MAP_INVALIDATE_BUFFER_BIT : GL_MAP_UNSYNCHRONIZED_BIT);
|
||||
mapped_ptr = static_cast<u8*>(
|
||||
glMapBufferRange(gl_target, buffer_pos, buffer_size - buffer_pos, flags));
|
||||
mapped_offset = buffer_pos;
|
||||
}
|
||||
|
||||
return std::make_tuple(mapped_ptr + buffer_pos - mapped_offset, buffer_pos, invalidate);
|
||||
}
|
||||
|
||||
void StorageBuffer::Unmap() {
|
||||
glFlushMappedBufferRange(gl_target, static_cast<GLintptr>(buffer_pos),
|
||||
static_cast<GLsizeiptr>(mapped_size));
|
||||
buffer_pos += mapped_size;
|
||||
void OGLStreamBuffer::Unmap(GLsizeiptr size) {
|
||||
ASSERT(size <= mapped_size);
|
||||
|
||||
if (!coherent && size > 0) {
|
||||
glFlushMappedBufferRange(gl_target, buffer_pos - mapped_offset, size);
|
||||
}
|
||||
|
||||
if (!persistent) {
|
||||
glUnmapBuffer(gl_target);
|
||||
}
|
||||
|
||||
buffer_pos += size;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -2,35 +2,41 @@
|
|||
// Licensed under GPLv2 or any later version
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <memory>
|
||||
#include <tuple>
|
||||
#include <glad/glad.h>
|
||||
#include "common/common_types.h"
|
||||
#include "video_core/renderer_opengl/gl_resource_manager.h"
|
||||
|
||||
class OGLStreamBuffer : private NonCopyable {
|
||||
public:
|
||||
explicit OGLStreamBuffer(GLenum target);
|
||||
virtual ~OGLStreamBuffer() = default;
|
||||
|
||||
public:
|
||||
static std::unique_ptr<OGLStreamBuffer> MakeBuffer(bool storage_buffer, GLenum target);
|
||||
|
||||
virtual void Create(size_t size, size_t sync_subdivide) = 0;
|
||||
virtual void Release() {}
|
||||
explicit OGLStreamBuffer(GLenum target, GLsizeiptr size, bool prefer_coherent = false);
|
||||
~OGLStreamBuffer();
|
||||
|
||||
GLuint GetHandle() const;
|
||||
GLsizeiptr GetSize() const;
|
||||
|
||||
virtual std::pair<u8*, GLintptr> Map(size_t size, size_t alignment) = 0;
|
||||
virtual void Unmap() = 0;
|
||||
/*
|
||||
* Allocates a linear chunk of memory in the GPU buffer with at least "size" bytes
|
||||
* and the optional alignment requirement.
|
||||
* If the buffer is full, the whole buffer is reallocated which invalidates old chunks.
|
||||
* The return values are the pointer to the new chunk, the offset within the buffer,
|
||||
* and the invalidation flag for previous chunks.
|
||||
* The actual used size must be specified on unmapping the chunk.
|
||||
*/
|
||||
std::tuple<u8*, GLintptr, bool> Map(GLsizeiptr size, GLintptr alignment = 0);
|
||||
|
||||
protected:
|
||||
void Unmap(GLsizeiptr size);
|
||||
|
||||
private:
|
||||
OGLBuffer gl_buffer;
|
||||
GLenum gl_target;
|
||||
|
||||
size_t buffer_pos = 0;
|
||||
size_t buffer_size = 0;
|
||||
size_t buffer_sync_subdivide = 0;
|
||||
size_t mapped_size = 0;
|
||||
bool coherent = false;
|
||||
bool persistent = false;
|
||||
|
||||
GLintptr buffer_pos = 0;
|
||||
GLsizeiptr buffer_size = 0;
|
||||
GLintptr mapped_offset = 0;
|
||||
GLsizeiptr mapped_size = 0;
|
||||
u8* mapped_ptr = nullptr;
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in New Issue