kc3-lang/angle/src/libANGLE/renderer/metal/ProgramMtl.h

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• Hash : c5b5cf6c
  Author :
  Date : 2020-09-10T16:58:18
  

  Refactor to pass ProgramMergedVaryings to link impl
  
  Follow-on CL needs the ProgramMergedVaryings in the Vulkan backend to
  generate valid SPIRV.
  
  Bug: angleproject:3078
  Change-Id: Ic442a3e0bd713fec36bd6b9420f67f3b1118e5ad
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2404336
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com>
  

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• src/libANGLE/renderer/metal/ProgramMtl.h

• //
  // Copyright 2019 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // ProgramMtl.h:
  //    Defines the class interface for ProgramMtl, implementing ProgramImpl.
  //
  
  #ifndef LIBANGLE_RENDERER_METAL_PROGRAMMTL_H_
  #define LIBANGLE_RENDERER_METAL_PROGRAMMTL_H_
  
  #import <Metal/Metal.h>
  
  #include <array>
  
  #include "common/Optional.h"
  #include "common/utilities.h"
  #include "libANGLE/renderer/ProgramImpl.h"
  #include "libANGLE/renderer/glslang_wrapper_utils.h"
  #include "libANGLE/renderer/metal/mtl_command_buffer.h"
  #include "libANGLE/renderer/metal/mtl_glslang_utils.h"
  #include "libANGLE/renderer/metal/mtl_resources.h"
  #include "libANGLE/renderer/metal/mtl_state_cache.h"
  
  namespace rx
  {
  class ContextMtl;
  
  // Represents a specialized shader variant. For example, a shader variant with fragment coverage
  // mask enabled and a shader variant without.
  struct ProgramShaderVariantMtl
  {
      void reset(ContextMtl *contextMtl);
  
      mtl::AutoObjCPtr<id<MTLFunction>> metalShader;
      // NOTE(hqle): might need additional info such as uniform buffer encoder, fragment coverage mask
      // enabled or not, etc.
  };
  
  class ProgramMtl : public ProgramImpl, public mtl::RenderPipelineCacheSpecializeShaderFactory
  {
    public:
      ProgramMtl(const gl::ProgramState &state);
      ~ProgramMtl() override;
  
      void destroy(const gl::Context *context) override;
  
      std::unique_ptr<LinkEvent> load(const gl::Context *context,
                                      gl::BinaryInputStream *stream,
                                      gl::InfoLog &infoLog) override;
      void save(const gl::Context *context, gl::BinaryOutputStream *stream) override;
      void setBinaryRetrievableHint(bool retrievable) override;
      void setSeparable(bool separable) override;
  
      std::unique_ptr<LinkEvent> link(const gl::Context *context,
                                      const gl::ProgramLinkedResources &resources,
                                      gl::InfoLog &infoLog,
                                      const gl::ProgramMergedVaryings &mergedVaryings) override;
      GLboolean validate(const gl::Caps &caps, gl::InfoLog *infoLog) override;
  
      void setUniform1fv(GLint location, GLsizei count, const GLfloat *v) override;
      void setUniform2fv(GLint location, GLsizei count, const GLfloat *v) override;
      void setUniform3fv(GLint location, GLsizei count, const GLfloat *v) override;
      void setUniform4fv(GLint location, GLsizei count, const GLfloat *v) override;
      void setUniform1iv(GLint location, GLsizei count, const GLint *v) override;
      void setUniform2iv(GLint location, GLsizei count, const GLint *v) override;
      void setUniform3iv(GLint location, GLsizei count, const GLint *v) override;
      void setUniform4iv(GLint location, GLsizei count, const GLint *v) override;
      void setUniform1uiv(GLint location, GLsizei count, const GLuint *v) override;
      void setUniform2uiv(GLint location, GLsizei count, const GLuint *v) override;
      void setUniform3uiv(GLint location, GLsizei count, const GLuint *v) override;
      void setUniform4uiv(GLint location, GLsizei count, const GLuint *v) override;
      void setUniformMatrix2fv(GLint location,
                               GLsizei count,
                               GLboolean transpose,
                               const GLfloat *value) override;
      void setUniformMatrix3fv(GLint location,
                               GLsizei count,
                               GLboolean transpose,
                               const GLfloat *value) override;
      void setUniformMatrix4fv(GLint location,
                               GLsizei count,
                               GLboolean transpose,
                               const GLfloat *value) override;
      void setUniformMatrix2x3fv(GLint location,
                                 GLsizei count,
                                 GLboolean transpose,
                                 const GLfloat *value) override;
      void setUniformMatrix3x2fv(GLint location,
                                 GLsizei count,
                                 GLboolean transpose,
                                 const GLfloat *value) override;
      void setUniformMatrix2x4fv(GLint location,
                                 GLsizei count,
                                 GLboolean transpose,
                                 const GLfloat *value) override;
      void setUniformMatrix4x2fv(GLint location,
                                 GLsizei count,
                                 GLboolean transpose,
                                 const GLfloat *value) override;
      void setUniformMatrix3x4fv(GLint location,
                                 GLsizei count,
                                 GLboolean transpose,
                                 const GLfloat *value) override;
      void setUniformMatrix4x3fv(GLint location,
                                 GLsizei count,
                                 GLboolean transpose,
                                 const GLfloat *value) override;
  
      void getUniformfv(const gl::Context *context, GLint location, GLfloat *params) const override;
      void getUniformiv(const gl::Context *context, GLint location, GLint *params) const override;
      void getUniformuiv(const gl::Context *context, GLint location, GLuint *params) const override;
  
      // Override mtl::RenderPipelineCacheSpecializeShaderFactory
      angle::Result getSpecializedShader(mtl::Context *context,
                                         gl::ShaderType shaderType,
                                         const mtl::RenderPipelineDesc &renderPipelineDesc,
                                         id<MTLFunction> *shaderOut) override;
      bool hasSpecializedShader(gl::ShaderType shaderType,
                                const mtl::RenderPipelineDesc &renderPipelineDesc) override;
  
      // Calls this before drawing, changedPipelineDesc is passed when vertex attributes desc and/or
      // shader program changed.
      angle::Result setupDraw(const gl::Context *glContext,
                              mtl::RenderCommandEncoder *cmdEncoder,
                              const Optional<mtl::RenderPipelineDesc> &changedPipelineDesc,
                              bool forceTexturesSetting);
  
    private:
      template <int cols, int rows>
      void setUniformMatrixfv(GLint location,
                              GLsizei count,
                              GLboolean transpose,
                              const GLfloat *value);
      template <class T>
      void getUniformImpl(GLint location, T *v, GLenum entryPointType) const;
  
      template <typename T>
      void setUniformImpl(GLint location, GLsizei count, const T *v, GLenum entryPointType);
  
      angle::Result initDefaultUniformBlocks(const gl::Context *glContext);
  
      angle::Result commitUniforms(ContextMtl *context, mtl::RenderCommandEncoder *cmdEncoder);
      angle::Result updateTextures(const gl::Context *glContext,
                                   mtl::RenderCommandEncoder *cmdEncoder,
                                   bool forceUpdate);
  
      void reset(ContextMtl *context);
      void linkResources(const gl::ProgramLinkedResources &resources);
      angle::Result linkImpl(const gl::Context *glContext,
                             const gl::ProgramLinkedResources &resources,
                             gl::InfoLog &infoLog);
  
      angle::Result createMslShaderLib(const gl::Context *glContext,
                                       gl::ShaderType shaderType,
                                       gl::InfoLog &infoLog,
                                       const std::string &translatedSource);
  
      // State for the default uniform blocks.
      struct DefaultUniformBlock final : private angle::NonCopyable
      {
          DefaultUniformBlock();
          ~DefaultUniformBlock();
  
          // Shadow copies of the shader uniform data.
          angle::MemoryBuffer uniformData;
  
          // Since the default blocks are laid out in std140, this tells us where to write on a call
          // to a setUniform method. They are arranged in uniform location order.
          std::vector<sh::BlockMemberInfo> uniformLayout;
      };
  
      gl::ShaderBitSet mDefaultUniformBlocksDirty;
      gl::ShaderBitSet mSamplerBindingsDirty;
      gl::ShaderMap<DefaultUniformBlock> mDefaultUniformBlocks;
  
      gl::ShaderMap<std::string> mTranslatedMslShader;
  
      gl::ShaderMap<mtl::TranslatedShaderInfo> mMslShaderTranslateInfo;
      gl::ShaderMap<mtl::AutoObjCPtr<id<MTLLibrary>>> mMslShaderLibrary;
  
      // Shader variants:
      // - Vertex shader: One variant for now.
      std::array<ProgramShaderVariantMtl, 1> mVertexShaderVariants;
      // - Fragment shader: One with sample coverage mask enabled, one with it disabled.
      std::array<ProgramShaderVariantMtl, 2> mFragmentShaderVariants;
  
      mtl::RenderPipelineCache mMetalRenderPipelineCache;
  };
  
  }  // namespace rx
  
  #endif /* LIBANGLE_RENDERER_METAL_PROGRAMMTL_H_ */
  

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