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

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• Hash : da3db87e
  Author :
  Date : 2021-07-06T14:00:58
  

  Upstream latest changes to Metal backend from Apple to 7/1/2021
  
  This CL merges in the ANGLE changes between these two WebKit commits:
  https://git.webkit.org/?p=WebKit.git;a=commit;h=8648b353ab1d7730438c2e08319e1a4d64982c31
  https://git.webkit.org/?p=WebKit.git;a=commit;h=166e4924a52971d6a32ad48247a439b16c00e062
  
  Include provoking vertex buffer out of bounds fix
  from https://bugs.webkit.org/show_bug.cgi?id=230107
  
  Fix bad merge of resetting of dirty bits, breaking
  DepthStencilFormatsTest.DepthTextureRender test and perhaps others.
  
  Disable GL_APPLE_clip_distance when the direct-to-Metal compiler is
  active. It can not yet handle the gl_ClipDistance array.
  
  Disable use of rectangular textures for IOSurfaces. Metal can bind
  IOSurfaces to 2D textures, and this was passing all tests in the
  SPIR-V Metal backend. Introducing rectangular textures breaks the
  SPIR-V Metal backend, and the tests currently fail on the
  direct-to-Metal backend.
  
  Fix several bugs with ProvokingVertex, which was causing
  both the SpirV and Direct backends to incorrectly draw
  indices.
  (https://bugs.webkit.org/show_bug.cgi?id=230107)
  
  Skip the following tests on the Metal backend which is still failing
    RobustResourceInitTestES3.BlitDepthStencilAfterClearBuffer
    GLSLTest_ES3.GLVertexIDIntegerTextureDrawArrays/ES3_Metal
  
  With these changes, angle_end2end_tests again runs to completion.
  
  Bug: angleproject:6395
  Change-Id: I3cc58f531426a95fc8f177a4ad87f56c1855a546
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3167010
  Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
  Reviewed-by: Kenneth Russell <kbr@chromium.org>
  Commit-Queue: Kyle Piddington <kpiddington@apple.com>
  

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• src/compiler/translator/TranslatorMetal.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.
  //
  // 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.
  //   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/DriverUniformMetal.h"
  #include "compiler/translator/TranslatorVulkan.h"
  #include "compiler/translator/tree_util/DriverUniform.h"
  #include "compiler/translator/tree_util/SpecializationConstant.h"
  
  namespace sh
  {
  
  // TODO: http://anglebug.com/5339 Implement it using actual specialization constant. For now we are
  // redirecting to driver uniforms
  class SpecConstMetal : public SpecConst
  {
    public:
      SpecConstMetal(TSymbolTable *symbolTable, ShCompileOptions compileOptions, GLenum shaderType)
          : SpecConst(symbolTable, compileOptions, shaderType)
      {}
      ~SpecConstMetal() override {}
  
    private:
  };
  
  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 DriverUniform *driverUniforms) override;
  
      ANGLE_NO_DISCARD bool insertSampleMaskWritingLogic(TInfoSinkBase &sink,
                                                         TIntermBlock *root,
                                                         const DriverUniformMetal *driverUniforms);
      ANGLE_NO_DISCARD bool insertRasterizerDiscardLogic(TInfoSinkBase &sink, TIntermBlock *root);
  };
  
  }  // namespace sh
  
  #endif /* LIBANGLE_RENDERER_METAL_TRANSLATORMETAL_H_ */
  

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