1 /*=========================================================================
4 Module: $RCSfile: gdcmJpeg2000.cxx,v $
6 Date: $Date: 2006/01/24 20:56:13 $
7 Version: $Revision: 1.39 $
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;
68 * Divide an integer by a power of 2 and round upwards.
72 inline int int_ceildivpow2(int a, int b) {
73 return (a + (1 << b) - 1) >> b;
77 * The following function was copy paste from j2k_to_image.c with part from convert.c
79 bool gdcm_read_JPEG2000_file (void* raw, char *inputdata, size_t inputlength)
81 opj_dparameters_t parameters; /* decompression parameters */
82 opj_event_mgr_t event_mgr; /* event manager */
83 opj_image_t *image = NULL;
84 opj_dinfo_t* dinfo = NULL; /* handle to a decompressor */
85 opj_cio_t *cio = NULL;
86 unsigned char *src = (unsigned char*)inputdata;
87 int file_length = inputlength;
89 /* configure the event callbacks (not required) */
90 memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
91 event_mgr.error_handler = error_callback;
92 event_mgr.warning_handler = warning_callback;
93 event_mgr.info_handler = info_callback;
95 /* set decoding parameters to default values */
96 opj_set_default_decoder_parameters(¶meters);
98 // default blindly copied
99 parameters.cp_layer=0;
100 parameters.cp_reduce=0;
101 // parameters.decod_format=-1;
102 // parameters.cod_format=-1;
104 /* JPEG-2000 codestream */
105 parameters.decod_format = J2K_CFMT;
106 assert(parameters.decod_format == J2K_CFMT);
107 parameters.cod_format = PGX_DFMT;
108 assert(parameters.cod_format == PGX_DFMT);
110 /* get a decoder handle */
111 dinfo = opj_create_decompress(CODEC_J2K);
113 /* catch events using our callbacks and give a local context */
114 opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, NULL);
116 /* setup the decoder decoding parameters using user parameters */
117 opj_setup_decoder(dinfo, ¶meters);
119 /* open a byte stream */
120 cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
122 /* decode the stream and fill the image structure */
123 image = opj_decode(dinfo, cio);
125 opj_destroy_decompress(dinfo);
130 /* close the byte stream */
133 /* free the memory containing the code-stream */
134 delete[] src; //FIXME
139 for (int compno = 0; compno < image->numcomps; compno++)
141 opj_image_comp_t *comp = &image->comps[compno];
143 int w = image->comps[compno].w;
144 int wr = int_ceildivpow2(image->comps[compno].w, image->comps[compno].factor);
146 //int h = image.comps[compno].h;
147 int hr = int_ceildivpow2(image->comps[compno].h, image->comps[compno].factor);
151 uint8_t *data8 = (uint8_t*)raw;
152 for (int i = 0; i < wr * hr; i++)
154 int v = image->comps[compno].data[i / wr * w + i % wr];
155 *data8++ = (uint8_t)v;
158 else if (comp->prec <= 16)
160 uint16_t *data16 = (uint16_t*)raw;
161 for (int i = 0; i < wr * hr; i++)
163 int v = image->comps[compno].data[i / wr * w + i % wr];
164 *data16++ = (uint16_t)v;
169 uint32_t *data32 = (uint32_t*)raw;
170 for (int i = 0; i < wr * hr; i++)
172 int v = image->comps[compno].data[i / wr * w + i % wr];
173 *data32++ = (uint32_t)v;
176 //free(image.comps[compno].data);
180 /* free remaining structures */
182 opj_destroy_decompress(dinfo);
185 /* free image data structure */
186 opj_image_destroy(image);
193 bool gdcm_read_JPEG2000_file (void* raw, char *inputdata, size_t inputlength)
198 // default blindly copied
204 cp.cod_format=J2K_CFMT;
205 cp.decod_format = PGX_DFMT;
206 int len = inputlength;
207 unsigned char *src = (unsigned char*)inputdata;
210 if (!j2k_decode(src, len, &img, &cp))
212 gdcmStaticErrorMacro( "ERROR -> j2k_to_image: failed to decode image!" );
217 for (int compno = 0; compno < img.numcomps; compno++)
219 j2k_comp_t *comp = &img.comps[compno];
221 int w = img.comps[compno].w;
222 int wr = int_ceildivpow2(img.comps[compno].w, img.comps[compno].factor);
224 //int h = img.comps[compno].h;
225 int hr = int_ceildivpow2(img.comps[compno].h, img.comps[compno].factor);
229 uint8_t *data8 = (uint8_t*)raw;
230 for (int i = 0; i < wr * hr; i++)
232 int v = img.comps[compno].data[i / wr * w + i % wr];
233 *data8++ = (uint8_t)v;
236 else if (comp->prec <= 16)
238 uint16_t *data16 = (uint16_t*)raw;
239 for (int i = 0; i < wr * hr; i++)
241 int v = img.comps[compno].data[i / wr * w + i % wr];
242 *data16++ = (uint16_t)v;
247 uint32_t *data32 = (uint32_t*)raw;
248 for (int i = 0; i < wr * hr; i++)
250 int v = img.comps[compno].data[i / wr * w + i % wr];
251 *data32++ = (uint32_t)v;
254 free(img.comps[compno].data);
257 // Free remaining structures
267 bool gdcm_read_JASPER_file (void* raw, char *inputdata, size_t inputlength)
270 std::cerr << "Inputlenght=" << inputlength << std::endl;
271 std::ofstream out("/tmp/jpeg2000.jpc", std::ios::binary);
272 out.write((char*)inputdata,inputlength);
275 jas_init(); //important...
276 jas_stream_t *jasStream =
277 jas_stream_memopen((char *)inputdata, inputlength);
280 if ((fmtid = jas_image_getfmt(jasStream)) < 0)
282 gdcmErrorMacro("unknown image format");
287 jas_image_t *jasImage /* = NULL*/; // Useless assignation
288 if (!(jasImage = jas_image_decode(jasStream, fmtid, 0)))
290 gdcmErrorMacro("cannot decode image");
295 jas_stream_close(jasStream);
296 int numcmpts = jas_image_numcmpts(jasImage);
297 int width = jas_image_cmptwidth(jasImage, 0);
298 int height = jas_image_cmptheight(jasImage, 0);
299 int prec = jas_image_cmptprec(jasImage, 0);
302 // The following should serioulsy be rewritten I cannot believe we need to
303 // do a per pixel decompression, there should be a way to read a full
307 uint8_t *data8 = (uint8_t*)raw;
308 for ( i = 0; i < height; i++)
309 for ( j = 0; j < width; j++)
310 for ( k= 0; k < numcmpts; k++)
311 *data8++ = (uint8_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
315 uint16_t *data16 = (uint16_t*)raw;
316 for ( i = 0; i < height; i++)
317 for ( j = 0; j < width; j++)
318 for ( k= 0; k < numcmpts; k++)
319 *data16++ = (uint16_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
323 uint32_t *data32 = (uint32_t*)raw;
324 for ( i = 0; i < height; i++)
325 for ( j = 0; j < width; j++)
326 for ( k= 0; k < numcmpts; k++)
327 *data32++ = (uint32_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
330 jas_image_destroy(jasImage);
331 jas_image_clearfmts();
334 //delete the jpeg temp buffer
336 std::ofstream rawout("/tmp/jpeg2000.raw");
337 rawout.write((char*)raw,height*width*numcmpts*((prec+4)/8));
346 //-----------------------------------------------------------------------------
347 } // end namespace gdcm