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11//                For Open Source Computer Vision Library
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41
42/* ////////////////////////////////////////////////////////////////////
43//
44//  C++ classes for image and matrices
45//
46// */
47
48#include "_cxcore.h"
49
50/////////////////////////////// CvImage implementation //////////////////////////////////
51
52static CvLoadImageFunc load_image = 0;
53static CvLoadImageMFunc load_image_m = 0;
54static CvSaveImageFunc save_image = 0;
55static CvShowImageFunc show_image = NULL;
56
57static bool
58icvIsXmlOrYaml( const char* filename )
59{
60    const char* suffix = strrchr( filename, '.' );
61    return suffix &&
62        (strcmp( suffix, ".xml" ) == 0 ||
63        strcmp( suffix, ".Xml" ) == 0 ||
64        strcmp( suffix, ".XML" ) == 0 ||
65        strcmp( suffix, ".yml" ) == 0 ||
66        strcmp( suffix, ".Yml" ) == 0 ||
67        strcmp( suffix, ".YML" ) == 0 ||
68        strcmp( suffix, ".yaml" ) == 0 ||
69        strcmp( suffix, ".Yaml" ) == 0 ||
70        strcmp( suffix, ".YAML" ) == 0);
71}
72
73
74static IplImage*
75icvRetrieveImage( void* obj )
76{
77    IplImage* img = 0;
78
79    CV_FUNCNAME( "icvRetrieveImage" );
80
81    __BEGIN__;
82
83    if( CV_IS_IMAGE(obj) )
84        img = (IplImage*)obj;
85    else if( CV_IS_MAT(obj) )
86    {
87        CvMat* m = (CvMat*)obj;
88        CV_CALL( img = cvCreateImageHeader( cvSize(m->cols,m->rows),
89                        CV_MAT_DEPTH(m->type), CV_MAT_CN(m->type) ));
90        cvSetData( img, m->data.ptr, m->step );
91        img->imageDataOrigin = (char*)m->refcount;
92        m->data.ptr = 0; m->step = 0;
93        cvReleaseMat( &m );
94    }
95    else if( obj )
96    {
97        cvRelease( &obj );
98        CV_ERROR( CV_StsUnsupportedFormat, "The object is neither an image, nor a matrix" );
99    }
100
101    __END__;
102
103    return img;
104}
105
106
107bool CvImage::load( const char* filename, const char* imgname, int color )
108{
109    IplImage* img = 0;
110
111    CV_FUNCNAME( "CvImage::read" );
112
113    __BEGIN__;
114
115    if( icvIsXmlOrYaml(filename) )
116    {
117        img = icvRetrieveImage(cvLoad(filename,0,imgname));
118        if( (img->nChannels > 1) != (color == 0) )
119            CV_ERROR( CV_StsNotImplemented,
120            "RGB<->Grayscale conversion is not implemented for images stored in XML/YAML" );
121        /*{
122            IplImage* temp_img = 0;
123            CV_CALL( temp_img = cvCreateImage( cvGetSize(img), img->depth, color > 0 ? 3 : 1 ));
124            cvCvtColor( img, temp_img, color > 0 ? CV_GRAY2BGR : CV_BGR2GRAY );
125            cvReleaseImage( &img );
126            img = temp_img;
127        }*/
128    }
129    else
130    {
131        if( load_image )
132            img = load_image( filename, color );
133        else
134            CV_ERROR( CV_StsNotImplemented,
135            "Loading an image stored in such a format requires HigGUI.\n"
136            "Link it to your program and call any function from it\n" );
137    }
138
139    attach( img );
140
141    __END__;
142
143    return img != 0;
144}
145
146
147bool CvImage::read( CvFileStorage* fs, const char* mapname, const char* imgname )
148{
149    void* obj = 0;
150    IplImage* img = 0;
151
152    if( mapname )
153    {
154        CvFileNode* mapnode = cvGetFileNodeByName( fs, 0, mapname );
155        if( !mapnode )
156            obj = cvReadByName( fs, mapnode, imgname );
157    }
158    else
159        obj = cvReadByName( fs, 0, imgname );
160
161    img = icvRetrieveImage(obj);
162    attach( img );
163    return img != 0;
164}
165
166
167bool CvImage::read( CvFileStorage* fs, const char* seqname, int idx )
168{
169    void* obj = 0;
170    IplImage* img = 0;
171    CvFileNode* seqnode = seqname ?
172        cvGetFileNodeByName( fs, 0, seqname ) : cvGetRootFileNode(fs,0);
173
174    if( seqnode && CV_NODE_IS_SEQ(seqnode->tag) )
175        obj = cvRead( fs, (CvFileNode*)cvGetSeqElem( seqnode->data.seq, idx ));
176    img = icvRetrieveImage(obj);
177    attach( img );
178    return img != 0;
179}
180
181
182void CvImage::save( const char* filename, const char* imgname )
183{
184    CV_FUNCNAME( "CvImage::write" );
185    __BEGIN__;
186
187    if( !image )
188        return;
189    if( icvIsXmlOrYaml( filename ) )
190        cvSave( filename, image, imgname );
191    else
192    {
193        if( save_image )
194            save_image( filename, image );
195        else
196            CV_ERROR( CV_StsNotImplemented,
197            "Saving an image in such a format requires HigGUI.\n"
198            "Link it to your program and call any function from it\n" );
199    }
200
201    __END__;
202}
203
204
205void CvImage::write( CvFileStorage* fs, const char* imgname )
206{
207    if( image )
208        cvWrite( fs, imgname, image );
209}
210
211
212
213/////////////////////////////// CvMatrix implementation //////////////////////////////////
214
215CvMatrix::CvMatrix( int rows, int cols, int type, CvMemStorage* storage, bool alloc_data )
216{
217    if( storage )
218    {
219        matrix = (CvMat*)cvMemStorageAlloc( storage, sizeof(*matrix) );
220        cvInitMatHeader( matrix, rows, cols, type, alloc_data ?
221            cvMemStorageAlloc( storage, rows*cols*CV_ELEM_SIZE(type) ) : 0 );
222    }
223    else
224        matrix = 0;
225}
226
227static CvMat*
228icvRetrieveMatrix( void* obj )
229{
230    CvMat* m = 0;
231
232    CV_FUNCNAME( "icvRetrieveMatrix" );
233
234    __BEGIN__;
235
236    if( CV_IS_MAT(obj) )
237        m = (CvMat*)obj;
238    else if( CV_IS_IMAGE(obj) )
239    {
240        IplImage* img = (IplImage*)obj;
241        CvMat hdr, *src = cvGetMat( img, &hdr );
242        CV_CALL( m = cvCreateMat( src->rows, src->cols, src->type ));
243        CV_CALL( cvCopy( src, m ));
244        cvReleaseImage( &img );
245    }
246    else if( obj )
247    {
248        cvRelease( &obj );
249        CV_ERROR( CV_StsUnsupportedFormat, "The object is neither an image, nor a matrix" );
250    }
251
252    __END__;
253
254    return m;
255}
256
257
258bool CvMatrix::load( const char* filename, const char* matname, int color )
259{
260    CvMat* m = 0;
261
262    CV_FUNCNAME( "CvMatrix::read" );
263
264    __BEGIN__;
265
266    if( icvIsXmlOrYaml(filename) )
267    {
268        m = icvRetrieveMatrix(cvLoad(filename,0,matname));
269
270        if( (CV_MAT_CN(m->type) > 1) != (color == 0) )
271            CV_ERROR( CV_StsNotImplemented,
272            "RGB<->Grayscale conversion is not implemented for matrices stored in XML/YAML" );
273        /*{
274            CvMat* temp_mat;
275            CV_CALL( temp_mat = cvCreateMat( m->rows, m->cols,
276                CV_MAKETYPE(CV_MAT_DEPTH(m->type), color > 0 ? 3 : 1 )));
277            cvCvtColor( m, temp_mat, color > 0 ? CV_GRAY2BGR : CV_BGR2GRAY );
278            cvReleaseMat( &m );
279            m = temp_mat;
280        }*/
281    }
282    else
283    {
284        if( load_image_m )
285            m = load_image_m( filename, color );
286        else
287            CV_ERROR( CV_StsNotImplemented,
288            "Loading an image stored in such a format requires HigGUI.\n"
289            "Link it to your program and call any function from it\n" );
290    }
291
292    set( m, false );
293
294    __END__;
295
296    return m != 0;
297}
298
299
300bool CvMatrix::read( CvFileStorage* fs, const char* mapname, const char* matname )
301{
302    void* obj = 0;
303    CvMat* m = 0;
304
305    if( mapname )
306    {
307        CvFileNode* mapnode = cvGetFileNodeByName( fs, 0, mapname );
308        if( !mapnode )
309            obj = cvReadByName( fs, mapnode, matname );
310    }
311    else
312        obj = cvReadByName( fs, 0, matname );
313
314    m = icvRetrieveMatrix(obj);
315    set( m, false );
316    return m != 0;
317}
318
319
320bool CvMatrix::read( CvFileStorage* fs, const char* seqname, int idx )
321{
322    void* obj = 0;
323    CvMat* m = 0;
324    CvFileNode* seqnode = seqname ?
325        cvGetFileNodeByName( fs, 0, seqname ) : cvGetRootFileNode(fs,0);
326
327    if( seqnode && CV_NODE_IS_SEQ(seqnode->tag) )
328        obj = cvRead( fs, (CvFileNode*)cvGetSeqElem( seqnode->data.seq, idx ));
329    m = icvRetrieveMatrix(obj);
330    set( m, false );
331    return m != 0;
332}
333
334
335void CvMatrix::save( const char* filename, const char* matname )
336{
337    CV_FUNCNAME( "CvMatrix::write" );
338    __BEGIN__;
339
340    if( !matrix )
341        return;
342    if( icvIsXmlOrYaml( filename ) )
343        cvSave( filename, matrix, matname );
344    else
345    {
346        if( save_image )
347            save_image( filename, matrix );
348        else
349            CV_ERROR( CV_StsNotImplemented,
350            "Saving a matrixe in such a format requires HigGUI.\n"
351            "Link it to your program and call any function from it\n" );
352    }
353
354    __END__;
355}
356
357
358void CvMatrix::write( CvFileStorage* fs, const char* matname )
359{
360    if( matrix )
361        cvWrite( fs, matname, matrix );
362}
363
364
365
366CV_IMPL int
367cvSetImageIOFunctions( CvLoadImageFunc _load_image, CvLoadImageMFunc _load_image_m,
368                       CvSaveImageFunc _save_image, CvShowImageFunc _show_image=NULL )
369{
370    load_image = _load_image;
371    load_image_m = _load_image_m;
372    save_image = _save_image;
373    show_image = _show_image;
374    return 1;
375}
376
377
378/*void main(void)
379{
380    CvImage a(cvSize(300,200),8,3), b(cvSize(300,200),8,3);
381    CvRNG rng = cvRNG(-1);
382
383    CV_SET_IMAGE_IO_FUNCTIONS();
384
385    cvNamedWindow( "test", 1 );
386    //cvZero( a );
387    cvZero( b );
388    cvRandArr( &rng, a, CV_RAND_UNI, cvScalarAll(0), cvScalarAll(100) );
389    cvCircle( b, cvPoint(100,100), 70, cvScalar(0,255,0), -1, CV_AA, 0 );
390    cvAdd( a, b, a );
391    a.show( "test" );
392
393    cvWaitKey();
394}*/
395
396/* End of file. */
397
398