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1 // Copyright 2014 PDFium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
6 | |
7 #ifndef CORE_FXCODEC_CODEC_FX_CODEC_PROGRESS_H_ | |
8 #define CORE_FXCODEC_CODEC_FX_CODEC_PROGRESS_H_ | |
9 | |
10 #include "core/fxcodec/include/fx_codec.h" | |
11 #include "core/fxcrt/include/fx_memory.h" | |
12 #include "core/fxcrt/include/fx_system.h" | |
13 #include "core/fxge/include/fx_dib.h" | |
14 | |
15 #define FXCODEC_BLOCK_SIZE 4096 | |
16 #define FXCODEC_PNG_GAMMA 2.2 | |
17 | |
18 #if _FX_OS_ == _FX_MACOSX_ || _FX_OS_ == _FX_IOS_ | |
19 #undef FXCODEC_PNG_GAMMA | |
20 #define FXCODEC_PNG_GAMMA 1.7 | |
21 #endif | |
22 | |
23 struct PixelWeight { | |
24 int m_SrcStart; | |
25 int m_SrcEnd; | |
26 int m_Weights[1]; | |
27 }; | |
28 | |
29 class CFXCODEC_WeightTable { | |
30 public: | |
31 CFXCODEC_WeightTable() { m_pWeightTables = NULL; } | |
32 ~CFXCODEC_WeightTable() { FX_Free(m_pWeightTables); } | |
33 | |
34 void Calc(int dest_len, | |
35 int dest_min, | |
36 int dest_max, | |
37 int src_len, | |
38 int src_min, | |
39 int src_max, | |
40 FX_BOOL bInterpol); | |
41 PixelWeight* GetPixelWeight(int pixel) { | |
42 return (PixelWeight*)(m_pWeightTables + (pixel - m_DestMin) * m_ItemSize); | |
43 } | |
44 | |
45 int m_DestMin, m_ItemSize; | |
46 uint8_t* m_pWeightTables; | |
47 }; | |
48 class CFXCODEC_HorzTable { | |
49 public: | |
50 CFXCODEC_HorzTable() { m_pWeightTables = NULL; } | |
51 ~CFXCODEC_HorzTable() { FX_Free(m_pWeightTables); } | |
52 | |
53 void Calc(int dest_len, int src_len, FX_BOOL bInterpol); | |
54 PixelWeight* GetPixelWeight(int pixel) { | |
55 return (PixelWeight*)(m_pWeightTables + pixel * m_ItemSize); | |
56 } | |
57 | |
58 int m_ItemSize; | |
59 uint8_t* m_pWeightTables; | |
60 }; | |
61 class CFXCODEC_VertTable { | |
62 public: | |
63 CFXCODEC_VertTable() { m_pWeightTables = NULL; } | |
64 ~CFXCODEC_VertTable() { FX_Free(m_pWeightTables); } | |
65 void Calc(int dest_len, int src_len); | |
66 PixelWeight* GetPixelWeight(int pixel) { | |
67 return (PixelWeight*)(m_pWeightTables + pixel * m_ItemSize); | |
68 } | |
69 int m_ItemSize; | |
70 uint8_t* m_pWeightTables; | |
71 }; | |
72 enum FXCodec_Format { | |
73 FXCodec_Invalid = 0, | |
74 FXCodec_1bppGray = 0x101, | |
75 FXCodec_1bppRgb = 0x001, | |
76 FXCodec_8bppGray = 0x108, | |
77 FXCodec_8bppRgb = 0x008, | |
78 FXCodec_Rgb = 0x018, | |
79 FXCodec_Rgb32 = 0x020, | |
80 FXCodec_Argb = 0x220, | |
81 FXCodec_Cmyk = 0x120 | |
82 }; | |
83 class CCodec_ProgressiveDecoder : public ICodec_ProgressiveDecoder { | |
84 public: | |
85 CCodec_ProgressiveDecoder(CCodec_ModuleMgr* pCodecMgr); | |
86 ~CCodec_ProgressiveDecoder() override; | |
87 | |
88 FXCODEC_STATUS LoadImageInfo(IFX_FileRead* pFile, | |
89 FXCODEC_IMAGE_TYPE imageType, | |
90 CFX_DIBAttribute* pAttribute) override; | |
91 | |
92 FXCODEC_IMAGE_TYPE GetType() const override { return m_imagType; } | |
93 int32_t GetWidth() const override { return m_SrcWidth; } | |
94 int32_t GetHeight() const override { return m_SrcHeight; } | |
95 int32_t GetNumComponents() const override { return m_SrcComponents; } | |
96 int32_t GetBPC() const override { return m_SrcBPC; } | |
97 void SetClipBox(FX_RECT* clip) override; | |
98 | |
99 FXCODEC_STATUS GetFrames(int32_t& frames, IFX_Pause* pPause) override; | |
100 FXCODEC_STATUS StartDecode(CFX_DIBitmap* pDIBitmap, | |
101 int start_x, | |
102 int start_y, | |
103 int size_x, | |
104 int size_y, | |
105 int32_t frames, | |
106 FX_BOOL bInterpol) override; | |
107 | |
108 FXCODEC_STATUS ContinueDecode(IFX_Pause* pPause) override; | |
109 | |
110 protected: | |
111 static FX_BOOL PngReadHeaderFunc(void* pModule, | |
112 int width, | |
113 int height, | |
114 int bpc, | |
115 int pass, | |
116 int* color_type, | |
117 double* gamma); | |
118 static FX_BOOL PngAskScanlineBufFunc(void* pModule, | |
119 int line, | |
120 uint8_t*& src_buf); | |
121 static void PngFillScanlineBufCompletedFunc(void* pModule, | |
122 int pass, | |
123 int line); | |
124 static void GifRecordCurrentPositionCallback(void* pModule, | |
125 uint32_t& cur_pos); | |
126 static uint8_t* GifAskLocalPaletteBufCallback(void* pModule, | |
127 int32_t frame_num, | |
128 int32_t pal_size); | |
129 static FX_BOOL GifInputRecordPositionBufCallback(void* pModule, | |
130 uint32_t rcd_pos, | |
131 const FX_RECT& img_rc, | |
132 int32_t pal_num, | |
133 void* pal_ptr, | |
134 int32_t delay_time, | |
135 FX_BOOL user_input, | |
136 int32_t trans_index, | |
137 int32_t disposal_method, | |
138 FX_BOOL interlace); | |
139 static void GifReadScanlineCallback(void* pModule, | |
140 int32_t row_num, | |
141 uint8_t* row_buf); | |
142 static FX_BOOL BmpInputImagePositionBufCallback(void* pModule, | |
143 uint32_t rcd_pos); | |
144 static void BmpReadScanlineCallback(void* pModule, | |
145 int32_t row_num, | |
146 uint8_t* row_buf); | |
147 | |
148 FX_BOOL DetectImageType(FXCODEC_IMAGE_TYPE imageType, | |
149 CFX_DIBAttribute* pAttribute); | |
150 void GetDownScale(int& down_scale); | |
151 void GetTransMethod(FXDIB_Format des_format, FXCodec_Format src_format); | |
152 void ReSampleScanline(CFX_DIBitmap* pDeviceBitmap, | |
153 int32_t des_line, | |
154 uint8_t* src_scan, | |
155 FXCodec_Format src_format); | |
156 void Resample(CFX_DIBitmap* pDeviceBitmap, | |
157 int32_t src_line, | |
158 uint8_t* src_scan, | |
159 FXCodec_Format src_format); | |
160 void ResampleVert(CFX_DIBitmap* pDeviceBitmap, double scale_y, int des_row); | |
161 FX_BOOL JpegReadMoreData(ICodec_JpegModule* pJpegModule, | |
162 FXCODEC_STATUS& err_status); | |
163 void PngOneOneMapResampleHorz(CFX_DIBitmap* pDeviceBitmap, | |
164 int32_t des_line, | |
165 uint8_t* src_scan, | |
166 FXCodec_Format src_format); | |
167 FX_BOOL GifReadMoreData(ICodec_GifModule* pGifModule, | |
168 FXCODEC_STATUS& err_status); | |
169 void GifDoubleLineResampleVert(CFX_DIBitmap* pDeviceBitmap, | |
170 double scale_y, | |
171 int des_row); | |
172 FX_BOOL BmpReadMoreData(ICodec_BmpModule* pBmpModule, | |
173 FXCODEC_STATUS& err_status); | |
174 void ResampleVertBT(CFX_DIBitmap* pDeviceBitmap, double scale_y, int des_row); | |
175 | |
176 public: | |
177 IFX_FileRead* m_pFile; | |
178 CCodec_ModuleMgr* m_pCodecMgr; | |
179 void* m_pJpegContext; | |
180 void* m_pPngContext; | |
181 void* m_pGifContext; | |
182 void* m_pBmpContext; | |
183 void* m_pTiffContext; | |
184 FXCODEC_IMAGE_TYPE m_imagType; | |
185 uint32_t m_offSet; | |
186 uint8_t* m_pSrcBuf; | |
187 uint32_t m_SrcSize; | |
188 uint8_t* m_pDecodeBuf; | |
189 int m_ScanlineSize; | |
190 CFX_DIBitmap* m_pDeviceBitmap; | |
191 FX_BOOL m_bInterpol; | |
192 CFXCODEC_WeightTable m_WeightHorz; | |
193 CFXCODEC_VertTable m_WeightVert; | |
194 CFXCODEC_HorzTable m_WeightHorzOO; | |
195 int m_SrcWidth; | |
196 int m_SrcHeight; | |
197 int m_SrcComponents; | |
198 int m_SrcBPC; | |
199 FX_RECT m_clipBox; | |
200 int m_startX; | |
201 int m_startY; | |
202 int m_sizeX; | |
203 int m_sizeY; | |
204 int m_TransMethod; | |
205 FX_ARGB* m_pSrcPalette; | |
206 int m_SrcPaletteNumber; | |
207 int m_SrcRow; | |
208 FXCodec_Format m_SrcFormat; | |
209 int m_SrcPassNumber; | |
210 int m_FrameNumber; | |
211 int m_FrameCur; | |
212 int m_GifBgIndex; | |
213 uint8_t* m_pGifPalette; | |
214 int32_t m_GifPltNumber; | |
215 int m_GifTransIndex; | |
216 FX_RECT m_GifFrameRect; | |
217 FX_BOOL m_BmpIsTopBottom; | |
218 FXCODEC_STATUS m_status; | |
219 }; | |
220 | |
221 #endif // CORE_FXCODEC_CODEC_FX_CODEC_PROGRESS_H_ | |
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