mirror of https://github.com/axmolengine/axmol.git
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
// Copyright 2012 Google Inc. All Rights Reserved.
|
|
//
|
|
// This code is licensed under the same terms as WebM:
|
|
// Software License Agreement: http://www.webmproject.org/license/software/
|
|
// Additional IP Rights Grant: http://www.webmproject.org/license/additional/
|
|
// -----------------------------------------------------------------------------
|
|
//
|
|
// Misc. common utility functions
|
|
//
|
|
// Author: Skal (pascal.massimino@gmail.com)
|
|
|
|
#ifndef WEBP_UTILS_UTILS_H_
|
|
#define WEBP_UTILS_UTILS_H_
|
|
|
|
#include "../webp/types.h"
|
|
|
|
#if defined(__cplusplus) || defined(c_plusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Memory allocation
|
|
|
|
// This is the maximum memory amount that libwebp will ever try to allocate.
|
|
#define WEBP_MAX_ALLOCABLE_MEMORY (1ULL << 40)
|
|
|
|
// size-checking safe malloc/calloc: verify that the requested size is not too
|
|
// large, or return NULL. You don't need to call these for constructs like
|
|
// malloc(sizeof(foo)), but only if there's picture-dependent size involved
|
|
// somewhere (like: malloc(num_pixels * sizeof(*something))). That's why this
|
|
// safe malloc() borrows the signature from calloc(), pointing at the dangerous
|
|
// underlying multiply involved.
|
|
void* WebPSafeMalloc(uint64_t nmemb, size_t size);
|
|
// Note that WebPSafeCalloc() expects the second argument type to be 'size_t'
|
|
// in order to favor the "calloc(num_foo, sizeof(foo))" pattern.
|
|
void* WebPSafeCalloc(uint64_t nmemb, size_t size);
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
#if defined(__cplusplus) || defined(c_plusplus)
|
|
} // extern "C"
|
|
#endif
|
|
|
|
#endif /* WEBP_UTILS_UTILS_H_ */
|