kc3-lang/angle/src/compiler/translator/ExtensionGLSL.cpp

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• Hash : 9d737966
  Author :
  Date : 2019-08-14T12:25:12
  

  Standardize copyright notices to project style
  
  For all "ANGLE Project" copyrights, standardize to the format specified
  by the style guide. Changes:
  - "Copyright (c)" and "Copyright(c)" changed to just "Copyright".
  - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1").
  - Fixed a small number of files that had no copyright date using the
    initial commit year from the version control history.
  - Fixed one instance of copyright being "The ANGLE Project" rather than
    "The ANGLE Project Authors"
  
  These changes are applied both to the copyright of source file, and
  where applicable to copyright statements that are generated by
  templates.
  
  BUG=angleproject:3811
  
  Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/compiler/translator/ExtensionGLSL.cpp

• //
  // Copyright 2015 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.
  //
  // ExtensionGLSL.cpp: Implements the TExtensionGLSL class that tracks GLSL extension requirements
  // of shaders.
  
  #include "compiler/translator/ExtensionGLSL.h"
  
  #include "compiler/translator/VersionGLSL.h"
  
  namespace sh
  {
  
  TExtensionGLSL::TExtensionGLSL(ShShaderOutput output)
      : TIntermTraverser(true, false, false), mTargetVersion(ShaderOutputTypeToGLSLVersion(output))
  {}
  
  const std::set<std::string> &TExtensionGLSL::getEnabledExtensions() const
  {
      return mEnabledExtensions;
  }
  
  const std::set<std::string> &TExtensionGLSL::getRequiredExtensions() const
  {
      return mRequiredExtensions;
  }
  
  bool TExtensionGLSL::visitUnary(Visit, TIntermUnary *node)
  {
      checkOperator(node);
  
      return true;
  }
  
  bool TExtensionGLSL::visitAggregate(Visit, TIntermAggregate *node)
  {
      checkOperator(node);
  
      return true;
  }
  
  void TExtensionGLSL::checkOperator(TIntermOperator *node)
  {
      if (mTargetVersion < GLSL_VERSION_130)
      {
          return;
      }
  
      switch (node->getOp())
      {
          case EOpAbs:
              break;
  
          case EOpSign:
              break;
  
          case EOpMix:
              break;
  
          case EOpFloatBitsToInt:
          case EOpFloatBitsToUint:
          case EOpIntBitsToFloat:
          case EOpUintBitsToFloat:
              if (mTargetVersion < GLSL_VERSION_330)
              {
                  // Bit conversion functions cannot be emulated.
                  mRequiredExtensions.insert("GL_ARB_shader_bit_encoding");
              }
              break;
  
          case EOpPackSnorm2x16:
          case EOpPackHalf2x16:
          case EOpUnpackSnorm2x16:
          case EOpUnpackHalf2x16:
              if (mTargetVersion < GLSL_VERSION_420)
              {
                  mEnabledExtensions.insert("GL_ARB_shading_language_packing");
  
                  if (mTargetVersion < GLSL_VERSION_330)
                  {
                      // floatBitsToUint and uintBitsToFloat are needed to emulate
                      // packHalf2x16 and unpackHalf2x16 respectively and cannot be
                      // emulated themselves.
                      mRequiredExtensions.insert("GL_ARB_shader_bit_encoding");
                  }
              }
              break;
  
          case EOpPackUnorm2x16:
          case EOpUnpackUnorm2x16:
              if (mTargetVersion < GLSL_VERSION_410)
              {
                  mEnabledExtensions.insert("GL_ARB_shading_language_packing");
              }
              break;
  
          default:
              break;
      }
  }
  
  }  // namespace sh
  

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