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Diffstat (limited to 'core/fxcodec/codec/ccodec_progressivedecoder.h')
| -rw-r--r-- | core/fxcodec/codec/ccodec_progressivedecoder.h | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/core/fxcodec/codec/ccodec_progressivedecoder.h b/core/fxcodec/codec/ccodec_progressivedecoder.h new file mode 100644 index 0000000000..8540493648 --- /dev/null +++ b/core/fxcodec/codec/ccodec_progressivedecoder.h @@ -0,0 +1,238 @@ +// Copyright 2014 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_PROGRESSIVEDECODER_H_ +#define CORE_FXCODEC_CODEC_CCODEC_PROGRESSIVEDECODER_H_ + +#include <vector> + +#include "core/fxcodec/fx_codec_def.h" +#include "core/fxcrt/include/fx_system.h" +#include "core/fxge/include/fx_dib.h" + +class CCodec_BmpModule; +class CCodec_GifContext; +class CCodec_GifModule; +class CCodec_JpegModule; +class CCodec_ModuleMgr; +class CCodec_PngContext; +class CCodec_TiffContext; +class CFX_DIBAttribute; +class IFX_FileRead; +class IFX_Pause; +struct FXBMP_Context; +struct FXGIF_Context; +struct FXJPEG_Context; +struct FXPNG_Context; + +class CCodec_ProgressiveDecoder { + public: + enum FXCodec_Format { + FXCodec_Invalid = 0, + FXCodec_1bppGray = 0x101, + FXCodec_1bppRgb = 0x001, + FXCodec_8bppGray = 0x108, + FXCodec_8bppRgb = 0x008, + FXCodec_Rgb = 0x018, + FXCodec_Rgb32 = 0x020, + FXCodec_Argb = 0x220, + FXCodec_Cmyk = 0x120 + }; + + explicit CCodec_ProgressiveDecoder(CCodec_ModuleMgr* pCodecMgr); + ~CCodec_ProgressiveDecoder(); + + FXCODEC_STATUS LoadImageInfo(IFX_FileRead* pFile, + FXCODEC_IMAGE_TYPE imageType, + CFX_DIBAttribute* pAttribute, + bool bSkipImageTypeCheck); + + FXCODEC_IMAGE_TYPE GetType() const { return m_imagType; } + int32_t GetWidth() const { return m_SrcWidth; } + int32_t GetHeight() const { return m_SrcHeight; } + int32_t GetNumComponents() const { return m_SrcComponents; } + int32_t GetBPC() const { return m_SrcBPC; } + void SetClipBox(FX_RECT* clip); + + FXCODEC_STATUS GetFrames(int32_t& frames, IFX_Pause* pPause = nullptr); + FXCODEC_STATUS StartDecode(CFX_DIBitmap* pDIBitmap, + int start_x, + int start_y, + int size_x, + int size_y, + int32_t frames = 0, + FX_BOOL bInterpol = TRUE); + + FXCODEC_STATUS ContinueDecode(IFX_Pause* pPause = nullptr); + + struct PixelWeight { + int m_SrcStart; + int m_SrcEnd; + int m_Weights[1]; + }; + + class CFXCODEC_WeightTable { + public: + CFXCODEC_WeightTable(); + ~CFXCODEC_WeightTable(); + + void Calc(int dest_len, + int dest_min, + int dest_max, + int src_len, + int src_min, + int src_max, + FX_BOOL bInterpol); + PixelWeight* GetPixelWeight(int pixel) { + return reinterpret_cast<PixelWeight*>(m_pWeightTables.data() + + (pixel - m_DestMin) * m_ItemSize); + } + + int m_DestMin; + int m_ItemSize; + std::vector<uint8_t> m_pWeightTables; + }; + + class CFXCODEC_HorzTable { + public: + CFXCODEC_HorzTable(); + ~CFXCODEC_HorzTable(); + + void Calc(int dest_len, int src_len, FX_BOOL bInterpol); + PixelWeight* GetPixelWeight(int pixel) { + return reinterpret_cast<PixelWeight*>(m_pWeightTables.data() + + pixel * m_ItemSize); + } + + int m_ItemSize; + std::vector<uint8_t> m_pWeightTables; + }; + + class CFXCODEC_VertTable { + public: + CFXCODEC_VertTable(); + ~CFXCODEC_VertTable(); + + void Calc(int dest_len, int src_len); + PixelWeight* GetPixelWeight(int pixel) { + return reinterpret_cast<PixelWeight*>(m_pWeightTables.data() + + pixel * m_ItemSize); + } + int m_ItemSize; + std::vector<uint8_t> m_pWeightTables; + }; + + IFX_FileRead* m_pFile; + CCodec_ModuleMgr* m_pCodecMgr; + FXJPEG_Context* m_pJpegContext; + FXPNG_Context* m_pPngContext; + FXGIF_Context* m_pGifContext; + FXBMP_Context* m_pBmpContext; + CCodec_TiffContext* m_pTiffContext; + FXCODEC_IMAGE_TYPE m_imagType; + uint32_t m_offSet; + uint8_t* m_pSrcBuf; + uint32_t m_SrcSize; + uint8_t* m_pDecodeBuf; + int m_ScanlineSize; + CFX_DIBitmap* m_pDeviceBitmap; + FX_BOOL m_bInterpol; + CFXCODEC_WeightTable m_WeightHorz; + CFXCODEC_VertTable m_WeightVert; + CFXCODEC_HorzTable m_WeightHorzOO; + int m_SrcWidth; + int m_SrcHeight; + int m_SrcComponents; + int m_SrcBPC; + FX_RECT m_clipBox; + int m_startX; + int m_startY; + int m_sizeX; + int m_sizeY; + int m_TransMethod; + FX_ARGB* m_pSrcPalette; + int m_SrcPaletteNumber; + int m_SrcRow; + FXCodec_Format m_SrcFormat; + int m_SrcPassNumber; + int m_FrameNumber; + int m_FrameCur; + int m_GifBgIndex; + uint8_t* m_pGifPalette; + int32_t m_GifPltNumber; + int m_GifTransIndex; + FX_RECT m_GifFrameRect; + FX_BOOL m_BmpIsTopBottom; + FXCODEC_STATUS m_status; + + protected: + static FX_BOOL PngReadHeaderFunc(void* pModule, + int width, + int height, + int bpc, + int pass, + int* color_type, + double* gamma); + static FX_BOOL PngAskScanlineBufFunc(void* pModule, + int line, + uint8_t*& src_buf); + static void PngFillScanlineBufCompletedFunc(void* pModule, + int pass, + int line); + static void GifRecordCurrentPositionCallback(void* pModule, + uint32_t& cur_pos); + static uint8_t* GifAskLocalPaletteBufCallback(void* pModule, + int32_t frame_num, + int32_t pal_size); + static FX_BOOL GifInputRecordPositionBufCallback(void* pModule, + uint32_t rcd_pos, + const FX_RECT& img_rc, + int32_t pal_num, + void* pal_ptr, + int32_t delay_time, + FX_BOOL user_input, + int32_t trans_index, + int32_t disposal_method, + FX_BOOL interlace); + static void GifReadScanlineCallback(void* pModule, + int32_t row_num, + uint8_t* row_buf); + static FX_BOOL BmpInputImagePositionBufCallback(void* pModule, + uint32_t rcd_pos); + static void BmpReadScanlineCallback(void* pModule, + int32_t row_num, + uint8_t* row_buf); + + FX_BOOL DetectImageType(FXCODEC_IMAGE_TYPE imageType, + CFX_DIBAttribute* pAttribute); + void GetDownScale(int& down_scale); + void GetTransMethod(FXDIB_Format des_format, FXCodec_Format src_format); + void ReSampleScanline(CFX_DIBitmap* pDeviceBitmap, + int32_t des_line, + uint8_t* src_scan, + FXCodec_Format src_format); + void Resample(CFX_DIBitmap* pDeviceBitmap, + int32_t src_line, + uint8_t* src_scan, + FXCodec_Format src_format); + void ResampleVert(CFX_DIBitmap* pDeviceBitmap, double scale_y, int des_row); + FX_BOOL JpegReadMoreData(CCodec_JpegModule* pJpegModule, + FXCODEC_STATUS& err_status); + void PngOneOneMapResampleHorz(CFX_DIBitmap* pDeviceBitmap, + int32_t des_line, + uint8_t* src_scan, + FXCodec_Format src_format); + FX_BOOL GifReadMoreData(CCodec_GifModule* pGifModule, + FXCODEC_STATUS& err_status); + void GifDoubleLineResampleVert(CFX_DIBitmap* pDeviceBitmap, + double scale_y, + int des_row); + FX_BOOL BmpReadMoreData(CCodec_BmpModule* pBmpModule, + FXCODEC_STATUS& err_status); + void ResampleVertBT(CFX_DIBitmap* pDeviceBitmap, double scale_y, int des_row); +}; + +#endif // CORE_FXCODEC_CODEC_CCODEC_PROGRESSIVEDECODER_H_ |