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			63 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			63 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * The Python Imaging Library.
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|  * $Id$
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|  *
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|  * declarations for the ZIP codecs
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|  *
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|  * Copyright (c) Fredrik Lundh 1996.
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|  */
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| 
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| 
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| #include "zlib.h"
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| 
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| 
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| /* modes */
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| #define	ZIP_PNG	0		/* continuous, filtered image data */
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| #define	ZIP_PNG_PALETTE	1	/* non-continuous data, disable filtering */
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| #define	ZIP_TIFF_PREDICTOR 2	/* TIFF, with predictor */
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| #define	ZIP_TIFF 3		/* TIFF, without predictor */
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| 
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| 
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| typedef struct {
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| 
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|     /* CONFIGURATION */
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| 
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|     /* Codec mode */
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|     int mode;
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| 
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|     /* Optimize (max compression) SLOW!!! */
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|     int optimize;
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| 
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|     /* 0 no compression, 9 best compression, -1 default compression */
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|     int compress_level;
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|     /* compression strategy Z_XXX */
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|     int compress_type;
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| 
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|     /* Predefined dictionary (experimental) */
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|     char* dictionary;
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|     int dictionary_size;
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| 
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|     /* PRIVATE CONTEXT (set by decoder/encoder) */
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| 
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|     z_stream z_stream;		/* (de)compression stream */
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| 
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|     UINT8* previous;		/* previous line (allocated) */
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| 
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|     int last_output;		/* # bytes last output by inflate */
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| 
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|     /* Compressor specific stuff */
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|     UINT8* prior;		/* filter storage (allocated) */
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|     UINT8* up;
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|     UINT8* average;
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|     UINT8* paeth;
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| 
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|     UINT8* output;		/* output data */
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| 
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|     int prefix;			/* size of filter prefix (0 for TIFF data) */
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| 
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|     int interlaced;		/* is the image interlaced? (PNG) */
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| 
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|     int pass;			/* current pass of the interlaced image (PNG) */
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| 
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| } ZIPSTATE;
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