From 2d1f054c61f71656a72eedbd8bda7693e950ab94 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Fri, 5 Apr 2019 18:31:24 -0300 Subject: [PATCH] gl_rasterizer: Use ARB_multi_bind to update UBOs across stages --- .../renderer_opengl/gl_rasterizer.cpp | 32 ++++++------------- .../renderer_opengl/gl_rasterizer.h | 3 ++ src/video_core/renderer_opengl/utils.cpp | 25 +++++++++++++++ src/video_core/renderer_opengl/utils.h | 20 ++++++++++++ 4 files changed, 58 insertions(+), 22 deletions(-) diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp index 7ff1e6737..148692943 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer.cpp +++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp @@ -299,6 +299,9 @@ void RasterizerOpenGL::SetupShaders(GLenum primitive_mode) { BaseBindings base_bindings; std::array clip_distances{}; + // Prepare UBO bindings + bind_ubo_pushbuffer.Setup(base_bindings.cbuf); + for (std::size_t index = 0; index < Maxwell::MaxShaderProgram; ++index) { const auto& shader_config = gpu.regs.shader_config[index]; const Maxwell::ShaderProgram program{static_cast(index)}; @@ -321,8 +324,8 @@ void RasterizerOpenGL::SetupShaders(GLenum primitive_mode) { &ubo, sizeof(ubo), static_cast(uniform_buffer_alignment)); // Bind the emulation info buffer - glBindBufferRange(GL_UNIFORM_BUFFER, base_bindings.cbuf, buffer_cache.GetHandle(), offset, - static_cast(sizeof(ubo))); + bind_ubo_pushbuffer.Push(buffer_cache.GetHandle(), offset, + static_cast(sizeof(ubo))); Shader shader{shader_cache.GetStageProgram(program)}; const auto [program_handle, next_bindings] = @@ -366,6 +369,8 @@ void RasterizerOpenGL::SetupShaders(GLenum primitive_mode) { base_bindings = next_bindings; } + bind_ubo_pushbuffer.Bind(); + SyncClipEnabled(clip_distances); gpu.dirty_flags.shaders = false; @@ -900,23 +905,14 @@ void RasterizerOpenGL::SetupConstBuffers(Tegra::Engines::Maxwell3D::Regs::Shader const auto& shader_stage = maxwell3d.state.shader_stages[static_cast(stage)]; const auto& entries = shader->GetShaderEntries().const_buffers; - constexpr u64 max_binds = Tegra::Engines::Maxwell3D::Regs::MaxConstBuffers; - std::array bind_buffers; - std::array bind_offsets; - std::array bind_sizes; - - ASSERT_MSG(entries.size() <= max_binds, "Exceeded expected number of binding points."); - // Upload only the enabled buffers from the 16 constbuffers of each shader stage for (u32 bindpoint = 0; bindpoint < entries.size(); ++bindpoint) { const auto& used_buffer = entries[bindpoint]; const auto& buffer = shader_stage.const_buffers[used_buffer.GetIndex()]; if (!buffer.enabled) { - // With disabled buffers set values as zero to unbind them - bind_buffers[bindpoint] = 0; - bind_offsets[bindpoint] = 0; - bind_sizes[bindpoint] = 0; + // Set values to zero to unbind buffers + bind_ubo_pushbuffer.Push(0, 0, 0); continue; } @@ -944,16 +940,8 @@ void RasterizerOpenGL::SetupConstBuffers(Tegra::Engines::Maxwell3D::Regs::Shader const GLintptr const_buffer_offset = buffer_cache.UploadMemory( buffer.address, size, static_cast(uniform_buffer_alignment)); - // Prepare values for multibind - bind_buffers[bindpoint] = buffer_cache.GetHandle(); - bind_offsets[bindpoint] = const_buffer_offset; - bind_sizes[bindpoint] = size; + bind_ubo_pushbuffer.Push(buffer_cache.GetHandle(), const_buffer_offset, 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(entries.size()), - bind_buffers.data(), bind_offsets.data(), bind_sizes.data()); } void RasterizerOpenGL::SetupGlobalRegions(Tegra::Engines::Maxwell3D::Regs::ShaderStage stage, diff --git a/src/video_core/renderer_opengl/gl_rasterizer.h b/src/video_core/renderer_opengl/gl_rasterizer.h index 54fbf48aa..72a399e3d 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer.h +++ b/src/video_core/renderer_opengl/gl_rasterizer.h @@ -28,6 +28,7 @@ #include "video_core/renderer_opengl/gl_shader_cache.h" #include "video_core/renderer_opengl/gl_shader_manager.h" #include "video_core/renderer_opengl/gl_state.h" +#include "video_core/renderer_opengl/utils.h" namespace Core { class System; @@ -229,6 +230,8 @@ private: PrimitiveAssembler primitive_assembler{buffer_cache}; GLint uniform_buffer_alignment; + BindBuffersRangePushBuffer bind_ubo_pushbuffer{GL_UNIFORM_BUFFER}; + std::size_t CalculateVertexArraysSize() const; std::size_t CalculateIndexBufferSize() const; diff --git a/src/video_core/renderer_opengl/utils.cpp b/src/video_core/renderer_opengl/utils.cpp index d84634cb3..79bda54c1 100644 --- a/src/video_core/renderer_opengl/utils.cpp +++ b/src/video_core/renderer_opengl/utils.cpp @@ -5,11 +5,36 @@ #include #include #include +#include "common/assert.h" #include "common/common_types.h" #include "video_core/renderer_opengl/utils.h" namespace OpenGL { +BindBuffersRangePushBuffer::BindBuffersRangePushBuffer(GLenum target) : target{target} {} + +BindBuffersRangePushBuffer::~BindBuffersRangePushBuffer() = default; + +void BindBuffersRangePushBuffer::Setup(GLuint first_) { + first = first_; + buffers.clear(); + offsets.clear(); + sizes.clear(); +} + +void BindBuffersRangePushBuffer::Push(GLuint buffer, GLintptr offset, GLsizeiptr size) { + buffers.push_back(buffer); + offsets.push_back(offset); + sizes.push_back(size); +} + +void BindBuffersRangePushBuffer::Bind() const { + const std::size_t count{buffers.size()}; + DEBUG_ASSERT(count == offsets.size() && count == sizes.size()); + glBindBuffersRange(target, first, static_cast(count), buffers.data(), offsets.data(), + sizes.data()); +} + void LabelGLObject(GLenum identifier, GLuint handle, VAddr addr, std::string extra_info) { if (!GLAD_GL_KHR_debug) { return; // We don't need to throw an error as this is just for debugging diff --git a/src/video_core/renderer_opengl/utils.h b/src/video_core/renderer_opengl/utils.h index 1fcb6fc11..aef45c9dc 100644 --- a/src/video_core/renderer_opengl/utils.h +++ b/src/video_core/renderer_opengl/utils.h @@ -5,11 +5,31 @@ #pragma once #include +#include #include #include "common/common_types.h" namespace OpenGL { +class BindBuffersRangePushBuffer { +public: + BindBuffersRangePushBuffer(GLenum target); + ~BindBuffersRangePushBuffer(); + + void Setup(GLuint first_); + + void Push(GLuint buffer, GLintptr offset, GLsizeiptr size); + + void Bind() const; + +private: + GLenum target; + GLuint first; + std::vector buffers; + std::vector offsets; + std::vector sizes; +}; + void LabelGLObject(GLenum identifier, GLuint handle, VAddr addr, std::string extra_info = ""); } // namespace OpenGL \ No newline at end of file