blob: 4b3f1ab23b19f4a4944a552147f96797e0f3e02f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkJpegUtility_codec_DEFINED
#define SkJpegUtility_codec_DEFINED
#include "SkStream.h"
#include <setjmp.h>
// stdio is needed for jpeglib
#include <stdio.h>
extern "C" {
#include "jpeglibmangler.h"
#include "jpeglib.h"
#include "jerror.h"
}
/*
* Error handling struct
*/
struct skjpeg_error_mgr : jpeg_error_mgr {
jmp_buf fJmpBuf;
};
/*
* Error handling function
*/
void skjpeg_err_exit(j_common_ptr cinfo);
/*
* Source handling struct for that allows libjpeg to use our stream object
*/
struct skjpeg_source_mgr : jpeg_source_mgr {
skjpeg_source_mgr(SkStream* stream);
SkStream* fStream; // unowned
enum {
// TODO (msarett): Experiment with different buffer sizes.
// This size was chosen because it matches SkImageDecoder.
kBufferSize = 1024
};
uint8_t fBuffer[kBufferSize];
};
#endif
|
