kc3-lang/angle/src/compiler/translator/TranslatorMetal.h

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• Hash : 9277ee74
  Author :
  Date : 2020-07-06T12:40:58
  

  Metal: Implement MSAA default framebuffer.
  
  GL_SAMPLE_COVERAGE_VALUE is implemented by inserting gl_SampleMask
  writing logic to fragment shader.
  
  New test added: MultisampleTest.ContentPresevedAfterInterruption.
  - Skip on D3D11 (Bug: angleproject:4609)
  
  Bug: angleproject:2634
  Change-Id: Ib44daf0baccc36ea320596d81713156047da059c
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2281783
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/compiler/translator/TranslatorMetal.h

• //
  // Copyright (c) 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.
  //
  // TranslatorMetal:
  //   A GLSL-based translator that outputs shaders that fit GL_KHR_vulkan_glsl.
  //   It takes into account some considerations for Metal backend also.
  //   The shaders are then fed into glslang to spit out SPIR-V (libANGLE-side).
  //   See: https://www.khronos.org/registry/vulkan/specs/misc/GL_KHR_vulkan_glsl.txt
  //
  //   The SPIR-V will then be translated to Metal Shading Language later in Metal backend.
  //
  
  #ifndef LIBANGLE_RENDERER_METAL_TRANSLATORMETAL_H_
  #define LIBANGLE_RENDERER_METAL_TRANSLATORMETAL_H_
  
  #include "compiler/translator/TranslatorVulkan.h"
  
  namespace sh
  {
  
  class TranslatorMetal : public TranslatorVulkan
  {
    public:
      TranslatorMetal(sh::GLenum type, ShShaderSpec spec);
  
    protected:
      ANGLE_NO_DISCARD bool translate(TIntermBlock *root,
                                      ShCompileOptions compileOptions,
                                      PerformanceDiagnostics *perfDiagnostics) override;
  
      ANGLE_NO_DISCARD bool transformDepthBeforeCorrection(TIntermBlock *root,
                                                           const TVariable *driverUniforms) override;
  
      void createAdditionalGraphicsDriverUniformFields(std::vector<TField *> *fieldsOut) override;
  
      ANGLE_NO_DISCARD bool insertSampleMaskWritingLogic(TIntermBlock *root,
                                                         const TVariable *driverUniforms);
  };
  
  }  // namespace sh
  
  #endif /* LIBANGLE_RENDERER_METAL_TRANSLATORMETAL_H_ */
  

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