1 /*=========================================================================
4 Module: $RCSfile: gdcmJpeg2000.cxx,v $
6 Date: $Date: 2006/01/24 20:48:10 $
7 Version: $Revision: 1.38 $
9 Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
10 l'Image). All rights reserved. See Doc/License.txt or
11 http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
13 This software is distributed WITHOUT ANY WARRANTY; without even
14 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 PURPOSE. See the above copyright notices for more information.
17 =========================================================================*/
18 #include "gdcmFileHelper.h"
19 #include "gdcmDebug.h"
30 //-----------------------------------------------------------------------------
32 * \brief routine for JPEG decompression
34 * @param inputdata inputdata
35 * @param inputlength inputlength
36 * @return 1 on success, 0 on error
40 sample error callback expecting a FILE* client object
42 void error_callback(const char *msg, void *) {
43 std::cerr << "Error in gdcmopenjpeg" << msg << std::endl;
46 sample warning callback expecting a FILE* client object
48 void warning_callback(const char *msg, void *) {
49 std::cerr << "Warning in gdcmopenjpeg" << msg << std::endl;
52 sample debug callback expecting no client object
54 void info_callback(const char *msg, void *) {
55 std::cerr << "Info in gdcmopenjpeg" << msg << std::endl;
67 * Divide an integer by a power of 2 and round upwards.
71 static int int_ceildivpow2(int a, int b) {
72 return (a + (1 << b) - 1) >> b;
76 * The following function was copy paste from j2k_to_image.c with part from convert.c
78 bool gdcm_read_JPEG2000_file (void* raw, char *inputdata, size_t inputlength)
80 opj_dparameters_t parameters; /* decompression parameters */
81 opj_event_mgr_t event_mgr; /* event manager */
82 opj_image_t *image = NULL;
83 opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
84 opj_cio_t *cio = NULL;
85 unsigned char *src = (unsigned char*)inputdata;
86 int file_length = inputlength;
88 /* configure the event callbacks (not required) */
89 memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
90 event_mgr.error_handler = error_callback;
91 event_mgr.warning_handler = warning_callback;
92 event_mgr.info_handler = info_callback;
94 /* set decoding parameters to default values */
95 opj_set_default_decoder_parameters(¶meters);
97 // default blindly copied
98 parameters.cp_layer=0;
99 parameters.cp_reduce=0;
100 // parameters.decod_format=-1;
101 // parameters.cod_format=-1;
103 /* JPEG-2000 codestream */
104 parameters.decod_format = J2K_CFMT;
105 assert(parameters.decod_format == J2K_CFMT);
106 parameters.cod_format = PGX_DFMT;
107 assert(parameters.cod_format == PGX_DFMT);
109 /* get a decoder handle */
110 dinfo = opj_create_decompress(CODEC_J2K);
112 /* catch events using our callbacks and give a local context */
113 opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, NULL);
115 /* setup the decoder decoding parameters using user parameters */
116 opj_setup_decoder(dinfo, ¶meters);
118 /* open a byte stream */
119 cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
121 /* decode the stream and fill the image structure */
122 image = opj_decode(dinfo, cio);
124 opj_destroy_decompress(dinfo);
129 /* close the byte stream */
132 /* free the memory containing the code-stream */
133 delete[] src; //FIXME
138 for (int compno = 0; compno < image->numcomps; compno++)
140 opj_image_comp_t *comp = &image->comps[compno];
142 int w = image->comps[compno].w;
143 int wr = int_ceildivpow2(image->comps[compno].w, image->comps[compno].factor);
145 //int h = image.comps[compno].h;
146 int hr = int_ceildivpow2(image->comps[compno].h, image->comps[compno].factor);
150 uint8_t *data8 = (uint8_t*)raw;
151 for (int i = 0; i < wr * hr; i++)
153 int v = image->comps[compno].data[i / wr * w + i % wr];
154 *data8++ = (uint8_t)v;
157 else if (comp->prec <= 16)
159 uint16_t *data16 = (uint16_t*)raw;
160 for (int i = 0; i < wr * hr; i++)
162 int v = image->comps[compno].data[i / wr * w + i % wr];
163 *data16++ = (uint16_t)v;
168 uint32_t *data32 = (uint32_t*)raw;
169 for (int i = 0; i < wr * hr; i++)
171 int v = image->comps[compno].data[i / wr * w + i % wr];
172 *data32++ = (uint32_t)v;
175 //free(image.comps[compno].data);
179 /* free remaining structures */
181 opj_destroy_decompress(dinfo);
184 /* free image data structure */
185 opj_image_destroy(image);
192 bool gdcm_read_JPEG2000_file (void* raw, char *inputdata, size_t inputlength)
197 // default blindly copied
203 cp.cod_format=J2K_CFMT;
204 cp.decod_format = PGX_DFMT;
205 int len = inputlength;
206 unsigned char *src = (unsigned char*)inputdata;
209 if (!j2k_decode(src, len, &img, &cp))
211 gdcmStaticErrorMacro( "ERROR -> j2k_to_image: failed to decode image!" );
216 for (int compno = 0; compno < img.numcomps; compno++)
218 j2k_comp_t *comp = &img.comps[compno];
220 int w = img.comps[compno].w;
221 int wr = int_ceildivpow2(img.comps[compno].w, img.comps[compno].factor);
223 //int h = img.comps[compno].h;
224 int hr = int_ceildivpow2(img.comps[compno].h, img.comps[compno].factor);
228 uint8_t *data8 = (uint8_t*)raw;
229 for (int i = 0; i < wr * hr; i++)
231 int v = img.comps[compno].data[i / wr * w + i % wr];
232 *data8++ = (uint8_t)v;
235 else if (comp->prec <= 16)
237 uint16_t *data16 = (uint16_t*)raw;
238 for (int i = 0; i < wr * hr; i++)
240 int v = img.comps[compno].data[i / wr * w + i % wr];
241 *data16++ = (uint16_t)v;
246 uint32_t *data32 = (uint32_t*)raw;
247 for (int i = 0; i < wr * hr; i++)
249 int v = img.comps[compno].data[i / wr * w + i % wr];
250 *data32++ = (uint32_t)v;
253 free(img.comps[compno].data);
256 // Free remaining structures
266 bool gdcm_read_JASPER_file (void* raw, char *inputdata, size_t inputlength)
269 std::cerr << "Inputlenght=" << inputlength << std::endl;
270 std::ofstream out("/tmp/jpeg2000.jpc", std::ios::binary);
271 out.write((char*)inputdata,inputlength);
274 jas_init(); //important...
275 jas_stream_t *jasStream =
276 jas_stream_memopen((char *)inputdata, inputlength);
279 if ((fmtid = jas_image_getfmt(jasStream)) < 0)
281 gdcmErrorMacro("unknown image format");
286 jas_image_t *jasImage /* = NULL*/; // Useless assignation
287 if (!(jasImage = jas_image_decode(jasStream, fmtid, 0)))
289 gdcmErrorMacro("cannot decode image");
294 jas_stream_close(jasStream);
295 int numcmpts = jas_image_numcmpts(jasImage);
296 int width = jas_image_cmptwidth(jasImage, 0);
297 int height = jas_image_cmptheight(jasImage, 0);
298 int prec = jas_image_cmptprec(jasImage, 0);
301 // The following should serioulsy be rewritten I cannot believe we need to
302 // do a per pixel decompression, there should be a way to read a full
306 uint8_t *data8 = (uint8_t*)raw;
307 for ( i = 0; i < height; i++)
308 for ( j = 0; j < width; j++)
309 for ( k= 0; k < numcmpts; k++)
310 *data8++ = (uint8_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
314 uint16_t *data16 = (uint16_t*)raw;
315 for ( i = 0; i < height; i++)
316 for ( j = 0; j < width; j++)
317 for ( k= 0; k < numcmpts; k++)
318 *data16++ = (uint16_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
322 uint32_t *data32 = (uint32_t*)raw;
323 for ( i = 0; i < height; i++)
324 for ( j = 0; j < width; j++)
325 for ( k= 0; k < numcmpts; k++)
326 *data32++ = (uint32_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
329 jas_image_destroy(jasImage);
330 jas_image_clearfmts();
333 //delete the jpeg temp buffer
335 std::ofstream rawout("/tmp/jpeg2000.raw");
336 rawout.write((char*)raw,height*width*numcmpts*((prec+4)/8));
345 //-----------------------------------------------------------------------------
346 } // end namespace gdcm