GDAL
gdal_alg_priv.h
1 /******************************************************************************
2  * $Id: gdal_alg_priv.h 33757 2016-03-20 20:22:33Z goatbar $
3  *
4  * Project: GDAL Image Processing Algorithms
5  * Purpose: Prototypes and definitions for various GDAL based algorithms:
6  * private declarations.
7  * Author: Andrey Kiselev, dron@ak4719.spb.edu
8  *
9  ******************************************************************************
10  * Copyright (c) 2008, Andrey Kiselev <dron@ak4719.spb.edu>
11  * Copyright (c) 2010-2013, Even Rouault <even dot rouault at mines-paris dot org>
12  *
13  * Permission is hereby granted, free of charge, to any person obtaining a
14  * copy of this software and associated documentation files (the "Software"),
15  * to deal in the Software without restriction, including without limitation
16  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
17  * and/or sell copies of the Software, and to permit persons to whom the
18  * Software is furnished to do so, subject to the following conditions:
19  *
20  * The above copyright notice and this permission notice shall be included
21  * in all copies or substantial portions of the Software.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
24  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
25  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
26  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
27  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
28  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
29  * DEALINGS IN THE SOFTWARE.
30  ****************************************************************************/
31 
32 #ifndef GDAL_ALG_PRIV_H_INCLUDED
33 #define GDAL_ALG_PRIV_H_INCLUDED
34 
35 #include "gdal_alg.h"
36 
37 CPL_C_START
38 
40 typedef enum { GBV_UserBurnValue = 0, GBV_Z = 1, GBV_M = 2
44 } GDALBurnValueSrc;
45 
46 typedef enum {
47  GRMA_Replace = 0,
48  GRMA_Add = 1,
49 } GDALRasterMergeAlg;
50 
51 typedef struct {
52  unsigned char * pabyChunkBuf;
53  int nXSize;
54  int nYSize;
55  int nBands;
56  GDALDataType eType;
57  double *padfBurnValue;
58  GDALBurnValueSrc eBurnValueSource;
59  GDALRasterMergeAlg eMergeAlg;
61 
62 /************************************************************************/
63 /* Low level rasterizer API. */
64 /************************************************************************/
65 
66 typedef void (*llScanlineFunc)( void *, int, int, int, double );
67 typedef void (*llPointFunc)( void *, int, int, double );
68 
69 void GDALdllImagePoint( int nRasterXSize, int nRasterYSize,
70  int nPartCount, int *panPartSize,
71  double *padfX, double *padfY, double *padfVariant,
72  llPointFunc pfnPointFunc, void *pCBData );
73 
74 void GDALdllImageLine( int nRasterXSize, int nRasterYSize,
75  int nPartCount, int *panPartSize,
76  double *padfX, double *padfY, double *padfVariant,
77  llPointFunc pfnPointFunc, void *pCBData );
78 
79 void GDALdllImageLineAllTouched(int nRasterXSize, int nRasterYSize,
80  int nPartCount, int *panPartSize,
81  double *padfX, double *padfY,
82  double *padfVariant,
83  llPointFunc pfnPointFunc, void *pCBData );
84 
85 void GDALdllImageFilledPolygon(int nRasterXSize, int nRasterYSize,
86  int nPartCount, int *panPartSize,
87  double *padfX, double *padfY,
88  double *padfVariant,
89  llScanlineFunc pfnScanlineFunc, void *pCBData );
90 
91 CPL_C_END
92 
93 /************************************************************************/
94 /* Polygon Enumerator */
95 /************************************************************************/
96 
97 #define GP_NODATA_MARKER -51502112
98 
99 template<class DataType, class EqualityTest> class GDALRasterPolygonEnumeratorT
100 
101 {
102 private:
103  void MergePolygon( int nSrcId, int nDstId );
104  int NewPolygon( DataType nValue );
105 
106 public: // these are intended to be readonly.
107 
108  GInt32 *panPolyIdMap;
109  DataType *panPolyValue;
110 
111  int nNextPolygonId;
112  int nPolyAlloc;
113 
114  int nConnectedness;
115 
116 public:
117  GDALRasterPolygonEnumeratorT( int nConnectedness=4 );
119 
120  void ProcessLine( DataType *panLastLineVal, DataType *panThisLineVal,
121  GInt32 *panLastLineId, GInt32 *panThisLineId,
122  int nXSize );
123 
124  void CompleteMerges();
125 
126  void Clear();
127 };
128 
130 {
131  bool operator()(GInt32 a, GInt32 b) { return a == b; }
132 };
133 
135 
136 typedef void* (*GDALTransformDeserializeFunc)( CPLXMLNode *psTree );
137 
138 void* GDALRegisterTransformDeserializer(const char* pszTransformName,
139  GDALTransformerFunc pfnTransformerFunc,
140  GDALTransformDeserializeFunc pfnDeserializeFunc);
141 void GDALUnregisterTransformDeserializer(void* pData);
142 
143 void GDALCleanupTransformDeserializerMutex();
144 
145 /* Transformer cloning */
146 
147 void* GDALCreateTPSTransformerInt( int nGCPCount, const GDAL_GCP *pasGCPList,
148  int bReversed, char** papszOptions );
149 
150 void CPL_DLL * GDALCloneTransformer( void *pTransformerArg );
151 
152 /************************************************************************/
153 /* Color table related */
154 /************************************************************************/
155 
156 /* definitions exists for T = GUInt32 and T = GUIntBig */
157 template<class T> int
158 GDALComputeMedianCutPCTInternal( GDALRasterBandH hRed,
159  GDALRasterBandH hGreen,
160  GDALRasterBandH hBlue,
161  GByte* pabyRedBand,
162  GByte* pabyGreenBand,
163  GByte* pabyBlueBand,
164  int (*pfnIncludePixel)(int,int,void*),
165  int nColors,
166  int nBits,
167  T* panHistogram,
168  GDALColorTableH hColorTable,
169  GDALProgressFunc pfnProgress,
170  void * pProgressArg );
171 
172 int GDALDitherRGB2PCTInternal( GDALRasterBandH hRed,
173  GDALRasterBandH hGreen,
174  GDALRasterBandH hBlue,
175  GDALRasterBandH hTarget,
176  GDALColorTableH hColorTable,
177  int nBits,
178  GInt16* pasDynamicColorMap,
179  int bDither,
180  GDALProgressFunc pfnProgress,
181  void * pProgressArg );
182 
183 #define PRIME_FOR_65536 98317
184 
185 /* See HashHistogram structure in gdalmediancut.cpp and ColorIndex structure in gdaldither.cpp */
186 /* 6 * sizeof(int) should be the size of the largest of both structures */
187 #define MEDIAN_CUT_AND_DITHER_BUFFER_SIZE_65536 (6 * sizeof(int) * PRIME_FOR_65536)
188 
189 
190 /************************************************************************/
191 /* Float comparison function. */
192 /************************************************************************/
193 
200 #define MAX_ULPS 10
201 
202 GBool GDALFloatEquals(float A, float B);
203 
205 {
206  bool operator()(float a, float b) { return GDALFloatEquals(a,b) == TRUE; }
207 };
208 
209 #endif /* ndef GDAL_ALG_PRIV_H_INCLUDED */
GDALDataType
Definition: gdal.h:57
Definition: gdal_alg_priv.h:51
Document node structure.
Definition: cpl_minixml.h:65
Definition: gdal_alg_priv.h:129
void * GDALRasterBandH
Opaque type used for the C bindings of the C++ GDALRasterBand class.
Definition: gdal.h:233
Definition: gdal_alg_priv.h:99
int(* GDALTransformerFunc)(void *pTransformerArg, int bDstToSrc, int nPointCount, double *x, double *y, double *z, int *panSuccess)
Definition: gdal_alg.h:114
Definition: gdal_alg_priv.h:204
Public (C callable) GDAL algorithm entry points, and definitions.
void * GDALColorTableH
Opaque type used for the C bindings of the C++ GDALColorTable class.
Definition: gdal.h:239
Ground Control Point.
Definition: gdal.h:492

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