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1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #ifndef CORE_INCLUDE_FXCODEC_FX_CODEC_PROVIDER_H_ | 7 #ifndef CORE_INCLUDE_FXCODEC_FX_CODEC_PROVIDER_H_ |
8 #define CORE_INCLUDE_FXCODEC_FX_CODEC_PROVIDER_H_ | 8 #define CORE_INCLUDE_FXCODEC_FX_CODEC_PROVIDER_H_ |
9 | 9 |
10 #include "../fxcrt/fx_system.h" | 10 #include "../fxcrt/fx_system.h" |
11 | 11 |
12 class IFX_JpegProvider | 12 class IFX_JpegProvider { |
13 { | 13 public: |
14 public: | 14 virtual void Release() = 0; |
15 virtual void» » Release() = 0; | |
16 | 15 |
17 virtual void*» » CreateDecoder(const uint8_t* src_buf, FX_DWORD s
rc_size, int width, int height, int nComps, FX_BOOL ColorTransform) = 0; | 16 virtual void* CreateDecoder(const uint8_t* src_buf, |
| 17 FX_DWORD src_size, |
| 18 int width, |
| 19 int height, |
| 20 int nComps, |
| 21 FX_BOOL ColorTransform) = 0; |
18 | 22 |
| 23 virtual void DestroyDecoder(void* pDecoder) = 0; |
19 | 24 |
20 virtual void» » DestroyDecoder(void* pDecoder) = 0; | 25 virtual void DownScale(void* pDecoder, int dest_width, int dest_height) = 0; |
21 | 26 |
22 virtual void» » DownScale(void* pDecoder, int dest_width, int de
st_height) = 0; | 27 virtual FX_BOOL Rewind(void* pDecoder) = 0; |
23 | 28 |
24 virtual FX_BOOL» » Rewind(void* pDecoder) = 0; | 29 virtual uint8_t* GetNextLine(void* pDecoder) = 0; |
25 | 30 |
26 virtual uint8_t*» GetNextLine(void* pDecoder) = 0; | 31 virtual FX_DWORD GetSrcOffset(void* pDecoder) = 0; |
27 | 32 |
28 virtual FX_DWORD» GetSrcOffset(void* pDecoder) = 0; | 33 virtual FX_BOOL LoadInfo(const uint8_t* src_buf, |
| 34 FX_DWORD src_size, |
| 35 int& width, |
| 36 int& height, |
| 37 int& num_components, |
| 38 int& bits_per_components, |
| 39 FX_BOOL& color_transform, |
| 40 uint8_t** icc_buf_ptr = NULL, |
| 41 FX_DWORD* icc_length = NULL) = 0; |
29 | 42 |
| 43 virtual FX_BOOL Encode(const class CFX_DIBSource* pSource, |
| 44 uint8_t*& dest_buf, |
| 45 FX_STRSIZE& dest_size, |
| 46 int quality = 75, |
| 47 const uint8_t* icc_buf = NULL, |
| 48 FX_DWORD icc_length = 0) = 0; |
30 | 49 |
31 virtual FX_BOOL» » LoadInfo(const uint8_t* src_buf, FX_DWORD src_si
ze, int& width, int& height, | 50 virtual void* Start() = 0; |
32 int& num_components, int& bits_per_components,
FX_BOOL& color_transform, | |
33 uint8_t** icc_buf_ptr = NULL, FX_DWORD* icc_len
gth = NULL) = 0; | |
34 | 51 |
35 virtual FX_BOOL» » Encode(const class CFX_DIBSource* pSource, uint8
_t*& dest_buf, FX_STRSIZE& dest_size, int quality = 75, | 52 virtual void Finish(void* pContext) = 0; |
36 const uint8_t* icc_buf = NULL, FX_DWORD icc_lengt
h = 0) = 0; | |
37 | 53 |
38 virtual void*» » Start() = 0; | 54 virtual void Input(void* pContext, |
| 55 const uint8_t* src_buf, |
| 56 FX_DWORD src_size) = 0; |
39 | 57 |
40 virtual void» » Finish(void* pContext) = 0; | 58 virtual int ReadHeader(void* pContext, |
| 59 int* width, |
| 60 int* height, |
| 61 int* nComps) = 0; |
41 | 62 |
42 virtual void» » Input(void* pContext, const uint8_t* src_buf, FX
_DWORD src_size) = 0; | 63 virtual int StartScanline(void* pContext, int down_scale) = 0; |
43 | 64 |
44 virtual int»» » ReadHeader(void* pContext, int* width, int* heig
ht, int* nComps) = 0; | 65 virtual FX_BOOL ReadScanline(void* pContext, uint8_t* dest_buf) = 0; |
45 | 66 |
| 67 virtual FX_DWORD GetAvailInput(void* pContext, |
| 68 uint8_t** avail_buf_ptr = NULL) = 0; |
46 | 69 |
47 virtual int»» » StartScanline(void* pContext, int down_scale) =
0; | 70 protected: |
48 | 71 ~IFX_JpegProvider() {} |
49 | |
50 virtual FX_BOOL» » ReadScanline(void* pContext, uint8_t* dest_buf)
= 0; | |
51 | |
52 | |
53 virtual FX_DWORD» GetAvailInput(void* pContext, uint8_t** avail_buf_ptr =
NULL) = 0; | |
54 | |
55 protected: | |
56 ~IFX_JpegProvider() { } | |
57 }; | 72 }; |
58 | 73 |
59 #endif // CORE_INCLUDE_FXCODEC_FX_CODEC_PROVIDER_H_ | 74 #endif // CORE_INCLUDE_FXCODEC_FX_CODEC_PROVIDER_H_ |
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