kc3-lang/angle/src/compiler/preprocessor/DirectiveHandlerBase.h

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• Hash : 4cbe8548
  Author :
  Date : 2023-02-28T21:12:17
  

  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>
  

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• src/compiler/preprocessor/DirectiveHandlerBase.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_PREPROCESSOR_DIRECTIVEHANDLERBASE_H_
  #define COMPILER_PREPROCESSOR_DIRECTIVEHANDLERBASE_H_
  
  #include <string>
  #include "GLSLANG/ShaderLang.h"
  #include "Macro.h"
  
  namespace angle
  {
  
  namespace pp
  {
  
  struct SourceLocation;
  
  // Base class for handling directives.
  // Preprocessor uses this class to notify the clients about certain
  // preprocessor directives. Derived classes are responsible for
  // handling them in an appropriate manner.
  class DirectiveHandler
  {
    public:
      virtual ~DirectiveHandler();
  
      virtual void handleError(const SourceLocation &loc, const std::string &msg) = 0;
  
      // Handle pragma of form: #pragma name[(value)]
      virtual void handlePragma(const SourceLocation &loc,
                                const std::string &name,
                                const std::string &value,
                                bool stdgl) = 0;
  
      virtual void handleExtension(const SourceLocation &loc,
                                   const std::string &name,
                                   const std::string &behavior) = 0;
  
      virtual void handleVersion(const SourceLocation &loc,
                                 int version,
                                 ShShaderSpec spec,
                                 MacroSet *macro_set) = 0;
  };
  
  }  // namespace pp
  
  }  // namespace angle
  
  #endif  // COMPILER_PREPROCESSOR_DIRECTIVEHANDLERBASE_H_
  

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