kc3-lang/angle/src/common/angleutils.h

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• Hash : 10530c34
  Author :
  Date : 2014-07-02T20:37:53
  

  Add ANGLE_NO_EXCEPTIONS macro
  
  This macro allows us to hide angle's usage of try/catch so that we can
  properly hide them from compilers that do not support exceptions
  properly (such as clang-cl and gcc/clang with -fno-exceptions).
  
  Change-Id: I75f466a5322e5840e007711ea851f444bd6ca299
  Reviewed-on: https://chromium-review.googlesource.com/206562
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Tested-by: <ehsan@mozilla.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/common/angleutils.h

• //
  // Copyright (c) 2002-2014 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.
  //
  
  // angleutils.h: Common ANGLE utilities.
  
  #ifndef COMMON_ANGLEUTILS_H_
  #define COMMON_ANGLEUTILS_H_
  
  #include "common/platform.h"
  
  #include <stddef.h>
  #include <string>
  #include <set>
  
  // A macro to disallow the copy constructor and operator= functions
  // This must be used in the private: declarations for a class
  #define DISALLOW_COPY_AND_ASSIGN(TypeName) \
    TypeName(const TypeName&);               \
    void operator=(const TypeName&)
  
  // Macros for writing try catch blocks. Defining ANGLE_NO_EXCEPTIONS
  // when building angle will disable the usage of try/catch for compilers
  // without proper support for them (such as clang-cl).
  #ifdef ANGLE_NO_EXCEPTIONS
  #define ANGLE_TRY if (true)
  #define ANGLE_CATCH_ALL else
  #else
  #define ANGLE_TRY try
  #define ANGLE_CATCH_ALL catch(...)
  #endif
  
  template <typename T, unsigned int N>
  inline unsigned int ArraySize(T(&)[N])
  {
      return N;
  }
  
  template <typename T, unsigned int N>
  void SafeRelease(T (&resourceBlock)[N])
  {
      for (unsigned int i = 0; i < N; i++)
      {
          SafeRelease(resourceBlock[i]);
      }
  }
  
  template <typename T>
  void SafeRelease(T& resource)
  {
      if (resource)
      {
          resource->Release();
          resource = NULL;
      }
  }
  
  template <typename T>
  void SafeDelete(T*& resource)
  {
      delete resource;
      resource = NULL;
  }
  
  template <typename T>
  void SafeDeleteContainer(T& resource)
  {
      for (typename T::iterator i = resource.begin(); i != resource.end(); i++)
      {
          SafeDelete(*i);
      }
      resource.clear();
  }
  
  template <typename T>
  void SafeDeleteArray(T*& resource)
  {
      delete[] resource;
      resource = NULL;
  }
  
  // Provide a less-than function for comparing structs
  // Note: struct memory must be initialized to zero, because of packing gaps
  template <typename T>
  inline bool StructLessThan(const T &a, const T &b)
  {
      return (memcmp(&a, &b, sizeof(T)) < 0);
  }
  
  // Provide a less-than function for comparing structs
  // Note: struct memory must be initialized to zero, because of packing gaps
  template <typename T>
  inline bool StructEquals(const T &a, const T &b)
  {
      return (memcmp(&a, &b, sizeof(T)) == 0);
  }
  
  template <typename T>
  inline void StructZero(T *obj)
  {
      memset(obj, 0, sizeof(T));
  }
  
  inline const char* MakeStaticString(const std::string &str)
  {
      static std::set<std::string> strings;
      std::set<std::string>::iterator it = strings.find(str);
      if (it != strings.end())
      {
          return it->c_str();
      }
  
      return strings.insert(str).first->c_str();
  }
  
  #if defined(_MSC_VER)
  #define snprintf _snprintf
  #endif
  
  #define VENDOR_ID_AMD 0x1002
  #define VENDOR_ID_INTEL 0x8086
  #define VENDOR_ID_NVIDIA 0x10DE
  
  #define GL_BGRA4_ANGLEX 0x6ABC
  #define GL_BGR5_A1_ANGLEX 0x6ABD
  #define GL_INT_64_ANGLEX 0x6ABE
  #define GL_STRUCT_ANGLEX 0x6ABF
  
  #endif // COMMON_ANGLEUTILS_H_
  

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