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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FXCODEC_CODEC_CCODEC_JPEGMODULE_H_
#define CORE_FXCODEC_CODEC_CCODEC_JPEGMODULE_H_
#include <memory>
#include "core/fxcrt/fx_system.h"
class CCodec_ScanlineDecoder;
class CFX_DIBSource;
struct FXJPEG_Context;
#ifdef PDF_ENABLE_XFA
class CFX_DIBAttribute;
#endif // PDF_ENABLE_XFA
class CCodec_JpegModule {
public:
CCodec_JpegModule() {}
std::unique_ptr<CCodec_ScanlineDecoder> CreateDecoder(const uint8_t* src_buf,
uint32_t src_size,
int width,
int height,
int nComps,
bool ColorTransform);
bool LoadInfo(const uint8_t* src_buf,
uint32_t src_size,
int* width,
int* height,
int* num_components,
int* bits_per_components,
bool* color_transform);
FXJPEG_Context* Start();
void Finish(FXJPEG_Context* pContext);
void Input(FXJPEG_Context* pContext,
const uint8_t* src_buf,
uint32_t src_size);
#ifndef PDF_ENABLE_XFA
int ReadHeader(FXJPEG_Context* pContext,
int* width,
int* height,
int* nComps);
#else // PDF_ENABLE_XFA
int ReadHeader(FXJPEG_Context* pContext,
int* width,
int* height,
int* nComps,
CFX_DIBAttribute* pAttribute);
#endif // PDF_ENABLE_XFA
bool StartScanline(FXJPEG_Context* pContext, int down_scale);
bool ReadScanline(FXJPEG_Context* pContext, uint8_t* dest_buf);
uint32_t GetAvailInput(FXJPEG_Context* pContext, uint8_t** avail_buf_ptr);
#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
static bool JpegEncode(const CFX_RetainPtr<CFX_DIBSource>& pSource,
uint8_t** dest_buf,
FX_STRSIZE* dest_size);
#endif
};
#endif // CORE_FXCODEC_CODEC_CCODEC_JPEGMODULE_H_
|
