src/tiff/contrib/addtiffo/tif_ovrcache.h

/******************************************************************************
 * tif_ovrcache.h,v 1.3 2005/05/25 09:03:16 dron Exp
 *
 * Project:  TIFF Overview Builder
 * Purpose:  Library functions to maintain two rows of tiles or two strips
 *           of data for output overviews as an output cache.
 * Author:   Frank Warmerdam, warmerdam@pobox.com
 *
 * This code could potentially be used by other applications wanting to
 * manage a once-through write cache.
 *
 ******************************************************************************
 * Copyright (c) 2000, Frank Warmerdam
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 ******************************************************************************
 */

#ifndef TIF_OVRCACHE_H_INCLUDED
#define TIF_OVRCACHE_H_INCLUDED

#include "tiffio.h"

#if defined(__cplusplus)
extern "C" {
#endif

typedef struct
{
    uint32	nXSize;
    uint32	nYSize;

    uint16	nBitsPerPixel;
    uint16	nSamples;
    uint16      nPlanarConfig;
    uint32	nBlockXSize;
    uint32	nBlockYSize;
    uint32	nBytesPerBlock;
    uint32      nBytesPerRow;

    int		nBlocksPerRow;
    int		nBlocksPerColumn;

    int	        nBlockOffset; /* what block is the first in papabyBlocks? */
    unsigned char *pabyRow1Blocks;
    unsigned char *pabyRow2Blocks;

    int		nDirOffset;
    TIFF	*hTIFF;
    int		bTiled;

} TIFFOvrCache;

TIFFOvrCache *TIFFCreateOvrCache( TIFF *hTIFF, int nDirOffset );
unsigned char *TIFFGetOvrBlock( TIFFOvrCache *psCache, int iTileX, int iTileY,
                                int iSample );
unsigned char *TIFFGetOvrBlock_Subsampled( TIFFOvrCache *psCache, int iTileX, int iTileY );
void           TIFFDestroyOvrCache( TIFFOvrCache * );

void TIFFBuildOverviews( TIFF *, int, int *, int, const char *,
                         int (*)(double,void*), void * );

void TIFF_ProcessFullResBlock( TIFF *hTIFF, int nPlanarConfig,
                               int bSubsampled, int nHorSamples, int nVerSamples,
                               int nOverviews, int * panOvList,
                               int nBitsPerPixel,
                               int nSamples, TIFFOvrCache ** papoRawBIs,
                               int nSXOff, int nSYOff,
                               unsigned char *pabySrcTile,
                               int nBlockXSize, int nBlockYSize,
                               int nSampleFormat, const char * pszResampling );

uint32 TIFF_WriteOverview( TIFF *, int, int, int, int, int, int, int,
                           int, int, int, int, unsigned short *,
                           unsigned short *, unsigned short *, int,
                           int, int);


#if defined(__cplusplus)
}
#endif

#endif /* ndef TIF_OVRCACHE_H_INCLUDED */
Commit	Line	Data
	1	/******************************************************************************
	2	* tif_ovrcache.h,v 1.3 2005/05/25 09:03:16 dron Exp
	3	*
	4	* Project: TIFF Overview Builder
	5	* Purpose: Library functions to maintain two rows of tiles or two strips
	6	* of data for output overviews as an output cache.
	7	* Author: Frank Warmerdam, warmerdam@pobox.com
	8	*
	9	* This code could potentially be used by other applications wanting to
	10	* manage a once-through write cache.
	11	*
	12	******************************************************************************
	13	* Copyright (c) 2000, Frank Warmerdam
	14	*
	15	* Permission is hereby granted, free of charge, to any person obtaining a
	16	* copy of this software and associated documentation files (the "Software"),
	17	* to deal in the Software without restriction, including without limitation
	18	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	19	* and/or sell copies of the Software, and to permit persons to whom the
	20	* Software is furnished to do so, subject to the following conditions:
	21	*
	22	* The above copyright notice and this permission notice shall be included
	23	* in all copies or substantial portions of the Software.
	24	*
	25	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	26	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	27	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	28	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	29	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	30	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	31	* DEALINGS IN THE SOFTWARE.
	32	******************************************************************************
	33	*/
	34
	35	#ifndef TIF_OVRCACHE_H_INCLUDED
	36	#define TIF_OVRCACHE_H_INCLUDED
	37
	38	#include "tiffio.h"
	39
	40	#if defined(__cplusplus)
	41	extern "C" {
	42	#endif
	43
	44	typedef struct
	45	{
	46	uint32 nXSize;
	47	uint32 nYSize;
	48
	49	uint16 nBitsPerPixel;
	50	uint16 nSamples;
	51	uint16 nPlanarConfig;
	52	uint32 nBlockXSize;
	53	uint32 nBlockYSize;
	54	uint32 nBytesPerBlock;
	55	uint32 nBytesPerRow;
	56
	57	int nBlocksPerRow;
	58	int nBlocksPerColumn;
	59
	60	int nBlockOffset; /* what block is the first in papabyBlocks? */
	61	unsigned char *pabyRow1Blocks;
	62	unsigned char *pabyRow2Blocks;
	63
	64	int nDirOffset;
	65	TIFF *hTIFF;
	66	int bTiled;
	67
	68	} TIFFOvrCache;
	69
	70	TIFFOvrCache TIFFCreateOvrCache( TIFF hTIFF, int nDirOffset );
	71	unsigned char TIFFGetOvrBlock( TIFFOvrCache psCache, int iTileX, int iTileY,
	72	int iSample );
	73	unsigned char TIFFGetOvrBlock_Subsampled( TIFFOvrCache psCache, int iTileX, int iTileY );
	74	void TIFFDestroyOvrCache( TIFFOvrCache * );
	75
	76	void TIFFBuildOverviews( TIFF , int, int , int, const char *,
	77	int ()(double,void), void * );
	78
	79	void TIFF_ProcessFullResBlock( TIFF *hTIFF, int nPlanarConfig,
	80	int bSubsampled, int nHorSamples, int nVerSamples,
	81	int nOverviews, int * panOvList,
	82	int nBitsPerPixel,
	83	int nSamples, TIFFOvrCache ** papoRawBIs,
	84	int nSXOff, int nSYOff,
	85	unsigned char *pabySrcTile,
	86	int nBlockXSize, int nBlockYSize,
	87	int nSampleFormat, const char * pszResampling );
	88
	89	uint32 TIFF_WriteOverview( TIFF *, int, int, int, int, int, int, int,
	90	int, int, int, int, unsigned short *,
	91	unsigned short , unsigned short , int,
	92	int, int);
	93
	94
	95
	96	#if defined(__cplusplus)
	97	}
	98	#endif
	99
	100	#endif /* ndef TIF_OVRCACHE_H_INCLUDED */
	101