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

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• Author : Mike Schuchardt
  Date : 2023-02-28 21:12:17
  Hash : 4cbe8548
  Message : Expose shader extensions based on ESSL version Previously, all suported extensions were always exposed in the preprocessor. This broke some games which relied on ESSL1-only extension macros not being defined in ESSL3 shaders. This change adds min/max version information to list of extensions so the preprocessor can conditionally expose extensions based on the shader language version, both via the extension name macros and the #extension directive. Test: angle_unittests --gtest_filter="VersionTest.*" Test: angle_end2end_tests --gtest_filter="*ESSL*ExtensionMacros*" Test: Run com.gameloft.android.ANMP.GloftGGHM on Pixel 6 Bug: b/268091452 Change-Id: I2332a6cb964f54c47d23e2ef6b24e99a0b5c8202 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4304907 Reviewed-by: Cody Northrop <cnorthrop@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Mike Schuchardt <mikes@lunarg.com>

• src/compiler/translator/DirectiveHandler.h

• //
  // Copyright 2012 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.
  //
  
  #ifndef COMPILER_TRANSLATOR_DIRECTIVEHANDLER_H_
  #define COMPILER_TRANSLATOR_DIRECTIVEHANDLER_H_
  
  #include "GLSLANG/ShaderLang.h"
  #include "common/angleutils.h"
  #include "compiler/preprocessor/DirectiveHandlerBase.h"
  #include "compiler/preprocessor/Macro.h"
  #include "compiler/translator/ExtensionBehavior.h"
  #include "compiler/translator/Pragma.h"
  
  namespace sh
  {
  class TDiagnostics;
  
  class TDirectiveHandler : public angle::pp::DirectiveHandler, angle::NonCopyable
  {
    public:
      TDirectiveHandler(TExtensionBehavior &extBehavior,
                        TDiagnostics &diagnostics,
                        int &shaderVersion,
                        sh::GLenum shaderType);
      ~TDirectiveHandler() override;
  
      const TPragma &pragma() const { return mPragma; }
      const TExtensionBehavior &extensionBehavior() const { return mExtensionBehavior; }
  
      void handleError(const angle::pp::SourceLocation &loc, const std::string &msg) override;
  
      void handlePragma(const angle::pp::SourceLocation &loc,
                        const std::string &name,
                        const std::string &value,
                        bool stdgl) override;
  
      void handleExtension(const angle::pp::SourceLocation &loc,
                           const std::string &name,
                           const std::string &behavior) override;
  
      void handleVersion(const angle::pp::SourceLocation &loc,
                         int version,
                         ShShaderSpec spec,
                         angle::pp::MacroSet *macro_set) override;
  
    private:
      TPragma mPragma;
      TExtensionBehavior &mExtensionBehavior;
      TDiagnostics &mDiagnostics;
      int &mShaderVersion;
      sh::GLenum mShaderType;
  };
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_DIRECTIVEHANDLER_H_