projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| 8414a40c VZ |
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 |