bc86b7a8a1
and use it to validate decoder allocations. fixes a crash in jpegdec at least. BUG=webp:312 Change-Id: Ia940590098f29510add6aad10a8dfe9e9ea46bf4
62 lines
2.3 KiB
C
62 lines
2.3 KiB
C
// Copyright 2016 Google Inc. All Rights Reserved.
|
|
//
|
|
// Use of this source code is governed by a BSD-style license
|
|
// that can be found in the COPYING file in the root of the source
|
|
// tree. An additional intellectual property rights grant can be found
|
|
// in the file PATENTS. All contributing project authors may
|
|
// be found in the AUTHORS file in the root of the source tree.
|
|
// -----------------------------------------------------------------------------
|
|
//
|
|
// Utility functions used by the image decoders.
|
|
//
|
|
|
|
#ifndef WEBP_IMAGEIO_IMAGEIO_UTIL_H_
|
|
#define WEBP_IMAGEIO_IMAGEIO_UTIL_H_
|
|
|
|
#include <stdio.h>
|
|
#include "webp/types.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
//------------------------------------------------------------------------------
|
|
// File I/O
|
|
|
|
// Reopen file in binary (O_BINARY) mode.
|
|
// Returns 'file' on success, NULL otherwise.
|
|
FILE* ImgIoUtilSetBinaryMode(FILE* file);
|
|
|
|
// Allocates storage for entire file 'file_name' and returns contents and size
|
|
// in 'data' and 'data_size'. Returns 1 on success, 0 otherwise. '*data' should
|
|
// be deleted using free().
|
|
// If 'file_name' is NULL or equal to "-", input is read from stdin by calling
|
|
// the function ImgIoUtilReadFromStdin().
|
|
int ImgIoUtilReadFile(const char* const file_name,
|
|
const uint8_t** data, size_t* data_size);
|
|
|
|
// Same as ImgIoUtilReadFile(), but reads until EOF from stdin instead.
|
|
int ImgIoUtilReadFromStdin(const uint8_t** data, size_t* data_size);
|
|
|
|
// Write a data segment into a file named 'file_name'. Returns true if ok.
|
|
// If 'file_name' is NULL or equal to "-", output is written to stdout.
|
|
int ImgIoUtilWriteFile(const char* const file_name,
|
|
const uint8_t* data, size_t data_size);
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
// Copy width x height pixels from 'src' to 'dst' honoring the strides.
|
|
void ImgIoUtilCopyPlane(const uint8_t* src, int src_stride,
|
|
uint8_t* dst, int dst_stride, int width, int height);
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
// Returns 0 in case of overflow of nmemb * size.
|
|
int ImgIoUtilCheckSizeArgumentsOverflow(uint64_t nmemb, size_t size);
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
#endif
|
|
|
|
#endif // WEBP_IMAGEIO_IMAGEIO_UTIL_H_
|