Hash :
d3f0f1ec
Author :
Date :
2013-09-20T13:31:08
Expose and generalize Clear11's CompareStates function, and add methods for equality test and initialization. TRAC #23841 Signed-off-by: Geoff Lang Signed-off-by: Shannon Woods
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//
// Copyright (c) 2002-2010 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 <stddef.h>
// 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&)
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 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));
}
#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_