libgeotiff
geo_tiffp.h
1 /**********************************************************************
2  *
3  * geo_tiffp.h - Private interface for TIFF tag parsing.
4  *
5  * Written by: Niles D. Ritter
6  *
7  * This interface file encapsulates the interface to external TIFF
8  * file-io routines and definitions. The current configuration
9  * assumes that the "libtiff" module is used, but if you have your
10  * own TIFF reader, you may replace the definitions with your own
11  * here, and replace the implementations in geo_tiffp.c. No other
12  * modules have any explicit dependence on external TIFF modules.
13  *
14  * Revision History;
15  *
16  * 20 June, 1995 Niles D. Ritter New
17  * 6 July, 1995 Niles D. Ritter Fix prototypes
18  *
19  **********************************************************************/
20 
21 #ifndef __geo_tiffp_h_
22 #define __geo_tiffp_h_
23 
24 /**********************************************************************
25  *
26  * Private includes
27  *
28  * If you are not using libtiff and XTIFF, replace this include file
29  * with the appropriate one for your own TIFF parsing routines.
30  *
31  * Revision History
32  *
33  * 19 September 1995 ndr Demoted Intergraph trans matrix.
34  *
35  **********************************************************************/
36 
37 #include "geotiff.h"
38 #include "xtiffio.h"
39 #include "cpl_serv.h"
40 
41 /*
42  * dblparam_t is the type that a double precision
43  * floating point value will have on the parameter
44  * stack (when coerced by the compiler). You shouldn't
45  * have to change this.
46  */
47 #ifdef applec
48 typedef extended dblparam_t;
49 #else
50 typedef double dblparam_t;
51 #endif
52 
53 
54 /**********************************************************************
55  *
56  * Private defines
57  *
58  * If you are not using "libtiff"/LIBXTIFF, replace these definitions
59  * with the appropriate definitions to access the geo-tags
60  *
61  **********************************************************************/
62 
63 typedef unsigned short pinfo_t; /* SHORT ProjectionInfo tag type */
64 typedef TIFF tiff_t; /* TIFF file descriptor */
65 typedef tdata_t gdata_t; /* pointer to data */
66 typedef tsize_t gsize_t; /* data allocation size */
67 
68 #define GTIFF_GEOKEYDIRECTORY TIFFTAG_GEOKEYDIRECTORY /* from xtiffio.h */
69 #define GTIFF_DOUBLEPARAMS TIFFTAG_GEODOUBLEPARAMS
70 #define GTIFF_ASCIIPARAMS TIFFTAG_GEOASCIIPARAMS
71 #define GTIFF_PIXELSCALE TIFFTAG_GEOPIXELSCALE
72 #define GTIFF_TRANSMATRIX TIFFTAG_GEOTRANSMATRIX
73 #define GTIFF_INTERGRAPH_MATRIX TIFFTAG_INTERGRAPH_MATRIX
74 #define GTIFF_TIEPOINTS TIFFTAG_GEOTIEPOINTS
75 #define GTIFF_LOCAL 0
76 
77 #if defined(__cplusplus)
78 extern "C" {
79 #endif
80 
81 /*
82  * Method function pointer types
83  */
84 typedef int (*GTGetFunction) (tiff_t *tif, pinfo_t tag, int *count, void *value );
85 typedef int (*GTSetFunction) (tiff_t *tif, pinfo_t tag, int count, void *value );
86 typedef tagtype_t (*GTTypeFunction) (tiff_t *tif, pinfo_t tag);
87 typedef struct _TIFFMethod {
88  GTGetFunction get;
89  GTSetFunction set;
90  GTTypeFunction type;
91 } TIFFMethod_t;
92 
93 /**********************************************************************
94  *
95  * Protected Function Declarations
96  *
97  * These routines are exposed implementations, and should not
98  * be used by external GEOTIFF client programs.
99  *
100  **********************************************************************/
101 
102 extern gsize_t _gtiff_size[]; /* TIFF data sizes */
103 extern void CPL_DLL _GTIFSetDefaultTIFF(TIFFMethod *method);
104 extern gdata_t CPL_DLL _GTIFcalloc(gsize_t);
105 extern gdata_t CPL_DLL _GTIFrealloc(gdata_t,gsize_t);
106 extern void CPL_DLL _GTIFFree(gdata_t data);
107 extern void CPL_DLL _GTIFmemcpy(gdata_t out,gdata_t in,gsize_t size);
108 
109 #if defined(__cplusplus)
110 }
111 #endif
112 
113 
114 #endif /* __geo_tiffp_h_ */
Definition: geo_tiffp.h:87

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