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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 _FX_CODEC_PROVIDER_H_ | 7 #ifndef _FX_CODEC_PROVIDER_H_ |
| 8 #define _FX_CODEC_PROVIDER_H_ | 8 #define _FX_CODEC_PROVIDER_H_ |
| 9 class IFX_JpegProvider | 9 class IFX_JpegProvider { |
| 10 { | 10 public: |
| 11 public: | 11 virtual void Release() = 0; |
| 12 | 12 |
| 13 virtual void» » Release() = 0; | 13 virtual void* CreateDecoder(FX_LPCBYTE src_buf, |
| 14 FX_DWORD src_size, |
| 15 int width, |
| 16 int height, |
| 17 int nComps, |
| 18 FX_BOOL ColorTransform) = 0; |
| 14 | 19 |
| 15 virtual void*» » CreateDecoder(FX_LPCBYTE src_buf, FX_DWORD src_s
ize, int width, int height, int nComps, FX_BOOL ColorTransform) = 0; | 20 virtual void DestroyDecoder(void* pDecoder) = 0; |
| 16 | 21 |
| 22 virtual void DownScale(void* pDecoder, int dest_width, int dest_height) = 0; |
| 17 | 23 |
| 18 virtual void» » DestroyDecoder(void* pDecoder) = 0; | 24 virtual FX_BOOL Rewind(void* pDecoder) = 0; |
| 19 | 25 |
| 20 virtual void» » DownScale(void* pDecoder, int dest_width, int de
st_height) = 0; | 26 virtual FX_LPBYTE GetNextLine(void* pDecoder) = 0; |
| 21 | 27 |
| 22 virtual FX_BOOL» » Rewind(void* pDecoder) = 0; | 28 virtual FX_DWORD GetSrcOffset(void* pDecoder) = 0; |
| 23 | 29 |
| 24 virtual FX_LPBYTE» GetNextLine(void* pDecoder) = 0; | 30 virtual FX_BOOL LoadInfo(FX_LPCBYTE src_buf, |
| 31 FX_DWORD src_size, |
| 32 int& width, |
| 33 int& height, |
| 34 int& num_components, |
| 35 int& bits_per_components, |
| 36 FX_BOOL& color_transform, |
| 37 FX_LPBYTE* icc_buf_ptr = NULL, |
| 38 FX_DWORD* icc_length = NULL) = 0; |
| 25 | 39 |
| 26 virtual FX_DWORD» GetSrcOffset(void* pDecoder) = 0; | 40 virtual FX_BOOL Encode(const class CFX_DIBSource* pSource, |
| 41 FX_LPBYTE& dest_buf, |
| 42 FX_STRSIZE& dest_size, |
| 43 int quality = 75, |
| 44 FX_LPCBYTE icc_buf = NULL, |
| 45 FX_DWORD icc_length = 0) = 0; |
| 27 | 46 |
| 47 virtual void* Start() = 0; |
| 28 | 48 |
| 29 virtual FX_BOOL» » LoadInfo(FX_LPCBYTE src_buf, FX_DWORD src_size,
int& width, int& height, | 49 virtual void Finish(void* pContext) = 0; |
| 30 int& num_components, int& bits_per_components,
FX_BOOL& color_transform, | |
| 31 FX_LPBYTE* icc_buf_ptr = NULL, FX_DWORD* icc_le
ngth = NULL) = 0; | |
| 32 | 50 |
| 33 virtual FX_BOOL» » Encode(const class CFX_DIBSource* pSource, FX_LP
BYTE& dest_buf, FX_STRSIZE& dest_size, int quality = 75, | 51 virtual void Input(void* pContext, FX_LPCBYTE src_buf, FX_DWORD src_size) = 0; |
| 34 FX_LPCBYTE icc_buf = NULL, FX_DWORD icc_length =
0) = 0; | |
| 35 | 52 |
| 36 virtual void*» » Start() = 0; | 53 virtual int ReadHeader(void* pContext, |
| 54 int* width, |
| 55 int* height, |
| 56 int* nComps) = 0; |
| 37 | 57 |
| 38 virtual void» » Finish(void* pContext) = 0; | 58 virtual int StartScanline(void* pContext, int down_scale) = 0; |
| 39 | 59 |
| 40 virtual void» » Input(void* pContext, FX_LPCBYTE src_buf, FX_DWO
RD src_size) = 0; | 60 virtual FX_BOOL ReadScanline(void* pContext, FX_LPBYTE dest_buf) = 0; |
| 41 | 61 |
| 42 virtual int»» » ReadHeader(void* pContext, int* width, int* heig
ht, int* nComps) = 0; | 62 virtual FX_DWORD GetAvailInput(void* pContext, |
| 43 | 63 FX_LPBYTE* avail_buf_ptr = NULL) = 0; |
| 44 | |
| 45 virtual int»» » StartScanline(void* pContext, int down_scale) =
0; | |
| 46 | |
| 47 | |
| 48 virtual FX_BOOL» » ReadScanline(void* pContext, FX_LPBYTE dest_buf)
= 0; | |
| 49 | |
| 50 | |
| 51 virtual FX_DWORD» GetAvailInput(void* pContext, FX_LPBYTE* avail_buf_ptr =
NULL) = 0; | |
| 52 }; | 64 }; |
| 53 #endif | 65 #endif |
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