| /*****************************************************************************/ |
| // Copyright 2006-2012 Adobe Systems Incorporated |
| // All Rights Reserved. |
| // |
| // NOTICE: Adobe permits you to use, modify, and distribute this file in |
| // accordance with the terms of the Adobe license agreement accompanying it. |
| /*****************************************************************************/ |
| |
| /* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_read_image.h#2 $ */ |
| /* $DateTime: 2012/06/05 11:05:39 $ */ |
| /* $Change: 833352 $ */ |
| /* $Author: tknoll $ */ |
| |
| /** \file |
| * Support for DNG image reading. |
| */ |
| |
| /*****************************************************************************/ |
| |
| #ifndef __dng_read_image__ |
| #define __dng_read_image__ |
| |
| /*****************************************************************************/ |
| |
| #include "dng_auto_ptr.h" |
| #include "dng_classes.h" |
| #include "dng_image.h" |
| #include "dng_memory.h" |
| #include "dng_types.h" |
| |
| /******************************************************************************/ |
| |
| bool DecodePackBits (dng_stream &stream, |
| uint8 *dPtr, |
| int32 dstCount); |
| |
| /*****************************************************************************/ |
| |
| class dng_row_interleaved_image: public dng_image |
| { |
| |
| private: |
| |
| dng_image &fImage; |
| |
| uint32 fFactor; |
| |
| public: |
| |
| dng_row_interleaved_image (dng_image &image, |
| uint32 factor); |
| |
| virtual void DoGet (dng_pixel_buffer &buffer) const; |
| |
| virtual void DoPut (const dng_pixel_buffer &buffer); |
| |
| private: |
| |
| int32 MapRow (int32 row) const; |
| |
| }; |
| |
| /*****************************************************************************/ |
| |
| /// \brief |
| /// |
| /// |
| |
| class dng_read_image |
| { |
| |
| friend class dng_read_tiles_task; |
| |
| protected: |
| |
| enum |
| { |
| |
| // Target size for buffer used to copy data to the image. |
| |
| kImageBufferSize = 128 * 1024 |
| |
| }; |
| |
| AutoPtr<dng_memory_block> fJPEGTables; |
| |
| public: |
| |
| dng_read_image (); |
| |
| virtual ~dng_read_image (); |
| |
| /// |
| /// \param |
| |
| virtual bool CanRead (const dng_ifd &ifd); |
| |
| /// |
| /// \param host Host used for memory allocation, progress updating, and abort testing. |
| /// \param ifd |
| /// \param stream Stream to read image data from. |
| /// \param image Result image to populate. |
| |
| virtual void Read (dng_host &host, |
| const dng_ifd &ifd, |
| dng_stream &stream, |
| dng_image &image, |
| dng_jpeg_image *jpegImage, |
| dng_fingerprint *jpegDigest); |
| |
| protected: |
| |
| virtual bool ReadUncompressed (dng_host &host, |
| const dng_ifd &ifd, |
| dng_stream &stream, |
| dng_image &image, |
| const dng_rect &tileArea, |
| uint32 plane, |
| uint32 planes, |
| AutoPtr<dng_memory_block> &uncompressedBuffer, |
| AutoPtr<dng_memory_block> &subTileBlockBuffer); |
| |
| virtual void DecodeLossyJPEG (dng_host &host, |
| dng_image &image, |
| const dng_rect &tileArea, |
| uint32 plane, |
| uint32 planes, |
| uint32 photometricInterpretation, |
| uint32 jpegDataSize, |
| uint8 *jpegDataInMemory); |
| |
| virtual bool ReadBaselineJPEG (dng_host &host, |
| const dng_ifd &ifd, |
| dng_stream &stream, |
| dng_image &image, |
| const dng_rect &tileArea, |
| uint32 plane, |
| uint32 planes, |
| uint32 tileByteCount, |
| uint8 *jpegDataInMemory); |
| |
| virtual bool ReadLosslessJPEG (dng_host &host, |
| const dng_ifd &ifd, |
| dng_stream &stream, |
| dng_image &image, |
| const dng_rect &tileArea, |
| uint32 plane, |
| uint32 planes, |
| uint32 tileByteCount, |
| AutoPtr<dng_memory_block> &uncompressedBuffer, |
| AutoPtr<dng_memory_block> &subTileBlockBuffer); |
| |
| virtual bool CanReadTile (const dng_ifd &ifd); |
| |
| virtual bool NeedsCompressedBuffer (const dng_ifd &ifd); |
| |
| virtual void ByteSwapBuffer (dng_host &host, |
| dng_pixel_buffer &buffer); |
| |
| virtual void DecodePredictor (dng_host &host, |
| const dng_ifd &ifd, |
| dng_pixel_buffer &buffer); |
| |
| virtual void ReadTile (dng_host &host, |
| const dng_ifd &ifd, |
| dng_stream &stream, |
| dng_image &image, |
| const dng_rect &tileArea, |
| uint32 plane, |
| uint32 planes, |
| uint32 tileByteCount, |
| AutoPtr<dng_memory_block> &compressedBuffer, |
| AutoPtr<dng_memory_block> &uncompressedBuffer, |
| AutoPtr<dng_memory_block> &subTileBlockBuffer); |
| |
| }; |
| |
| /*****************************************************************************/ |
| |
| #endif |
| |
| /*****************************************************************************/ |