54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/*
|
|
* Copyright (C) 2011 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
#ifndef GL_UTILS_H
|
|
#define GL_UTILS_H
|
|
|
|
#include <assert.h>
|
|
#include <inttypes.h>
|
|
#include <stdio.h>
|
|
|
|
typedef enum {
|
|
GLES_1_1 = 1,
|
|
GLES_2_0 = 2,
|
|
MAX_GLES_VERSION //Must be last
|
|
} GLESVersion;
|
|
|
|
bool isPowerOf2(int num);
|
|
|
|
// <EGL/egl.h> defines many types as 'void*' while they're really
|
|
// implemented as unsigned integers. These convenience template functions
|
|
// help casting between them safely without generating compiler warnings.
|
|
inline void* SafePointerFromUInt(unsigned int handle) {
|
|
return (void*)(uintptr_t)(handle);
|
|
}
|
|
|
|
inline unsigned int SafeUIntFromPointer(const void* ptr) {
|
|
#if 1
|
|
// Ignore the assert below to avoid crashing when running older
|
|
// system images, which might have buggy encoder libraries. Print
|
|
// an error message though.
|
|
if ((uintptr_t)(ptr) != (unsigned int)(uintptr_t)(ptr)) {
|
|
fprintf(stderr, "EmuGL:WARNING: bad generic pointer %p\n", ptr);
|
|
}
|
|
#else
|
|
// Assertion error if the pointer contains a value that does not fit
|
|
// in an unsigned integer!
|
|
assert((uintptr_t)(ptr) == (unsigned int)(uintptr_t)(ptr));
|
|
#endif
|
|
return (unsigned int)(uintptr_t)(ptr);
|
|
}
|
|
|
|
#endif
|