kc3-lang/angle/src/tests/test_utils/gl_raii.h

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• Hash : 8c5b31c2
  Author :
  Date : 2017-09-26T18:07:44
  

  Make query extensions enableable.
  
  BUG=angleproject:1523
  
  Change-Id: If2da4bff180664de997c981165672858c19ebe78
  Reviewed-on: https://chromium-review.googlesource.com/685649
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  

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• src/tests/test_utils/gl_raii.h

• //
  // Copyright (c) 2016 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.
  //
  // gl_raii:
  //   Helper methods for containing GL objects like buffers and textures.
  
  #ifndef ANGLE_TESTS_GL_RAII_H_
  #define ANGLE_TESTS_GL_RAII_H_
  
  #include <functional>
  
  #include "angle_gl.h"
  
  namespace angle
  {
  
  // This is a bit of hack to work around a bug in MSVS intellisense, and make it very easy to
  // use the correct function pointer type without worrying about the various definitions of
  // GL_APICALL.
  using GLGen    = decltype(glGenBuffers);
  using GLDelete = decltype(glDeleteBuffers);
  
  template <GLGen GenF, GLDelete DeleteF>
  class GLWrapper : angle::NonCopyable
  {
    public:
      GLWrapper() {}
      ~GLWrapper() { DeleteF(1, &mHandle); }
  
      // The move-constructor and move-assignment operators are necessary so that the data within a
      // GLWrapper object can be relocated.
      GLWrapper(GLWrapper &&rht) : mHandle(rht.mHandle) { rht.mHandle = 0u; }
      GLWrapper &operator=(GLWrapper &&rht)
      {
          if (this != &rht)
          {
              std::swap(mHandle, rht.mHandle);
          }
          return *this;
      }
  
      void reset()
      {
          if (mHandle != 0u)
          {
              DeleteF(1, &mHandle);
              mHandle = 0u;
          }
      }
  
      GLuint get()
      {
          if (!mHandle)
          {
              GenF(1, &mHandle);
          }
          return mHandle;
      }
  
      operator GLuint() { return get(); }
  
    private:
      GLuint mHandle = 0u;
  };
  
  using GLVertexArray       = GLWrapper<glGenVertexArrays, glDeleteVertexArrays>;
  using GLBuffer            = GLWrapper<glGenBuffers, glDeleteBuffers>;
  using GLTexture           = GLWrapper<glGenTextures, glDeleteTextures>;
  using GLFramebuffer       = GLWrapper<glGenFramebuffers, glDeleteFramebuffers>;
  using GLRenderbuffer      = GLWrapper<glGenRenderbuffers, glDeleteRenderbuffers>;
  using GLSampler           = GLWrapper<glGenSamplers, glDeleteSamplers>;
  using GLTransformFeedback = GLWrapper<glGenTransformFeedbacks, glDeleteTransformFeedbacks>;
  using GLProgramPipeline   = GLWrapper<glGenProgramPipelines, glDeleteProgramPipelines>;
  using GLQueryEXT          = GLWrapper<glGenQueriesEXT, glDeleteQueriesEXT>;
  
  // Don't use GLProgram directly, use ANGLE_GL_PROGRAM.
  namespace priv
  {
  class GLProgram
  {
    public:
      GLProgram() : mHandle(0) {}
  
      ~GLProgram() { glDeleteProgram(mHandle); }
  
      void makeCompute(const std::string &computeShader)
      {
          mHandle = CompileComputeProgram(computeShader);
      }
  
      void makeRaster(const std::string &vertexShader, const std::string &fragmentShader)
      {
          mHandle = CompileProgram(vertexShader, fragmentShader);
      }
  
      void makeBinaryOES(const std::vector<uint8_t> &binary, GLenum binaryFormat)
      {
          mHandle = LoadBinaryProgramOES(binary, binaryFormat);
      }
  
      void makeBinaryES3(const std::vector<uint8_t> &binary, GLenum binaryFormat)
      {
          mHandle = LoadBinaryProgramES3(binary, binaryFormat);
      }
  
      bool valid() const { return mHandle != 0; }
  
      GLuint get()
      {
          ASSERT(valid());
          return mHandle;
      }
  
      operator GLuint() { return get(); }
  
    private:
      GLuint mHandle;
  };
  }  // namespace priv
  
  #define ANGLE_GL_PROGRAM(name, vertex, fragment) \
      priv::GLProgram name;                        \
      name.makeRaster(vertex, fragment);           \
      ASSERT_TRUE(name.valid());
  
  #define ANGLE_GL_COMPUTE_PROGRAM(name, compute) \
      priv::GLProgram name;                       \
      name.makeCompute(compute);                  \
      ASSERT_TRUE(name.valid());
  
  #define ANGLE_GL_BINARY_OES_PROGRAM(name, binary, binaryFormat) \
      priv::GLProgram name;                                       \
      name.makeBinaryOES(binary, binaryFormat);                   \
      ASSERT_TRUE(name.valid());
  
  #define ANGLE_GL_BINARY_ES3_PROGRAM(name, binary, binaryFormat) \
      priv::GLProgram name;                                       \
      name.makeBinaryES3(binary, binaryFormat);                   \
      ASSERT_TRUE(name.valid());
  
  }  // namespace angle
  
  #endif  // ANGLE_TESTS_GL_RAII_H_
  

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