1 /*=========================================================================
4 Module: $RCSfile: gdcmJpeg2000.cxx,v $
6 Date: $Date: 2006/01/24 20:25:23 $
7 Version: $Revision: 1.35 $
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 /* JPEG-2000 codestream */
98 assert(parameters.decod_format == J2K_CFMT);
100 /* get a decoder handle */
101 dinfo = opj_create_decompress(CODEC_J2K);
103 /* catch events using our callbacks and give a local context */
104 opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
106 /* setup the decoder decoding parameters using user parameters */
107 opj_setup_decoder(dinfo, ¶meters);
109 /* open a byte stream */
110 cio = opj_cio_open((opj_common_ptr)dinfo, src, file_length);
112 /* decode the stream and fill the image structure */
113 image = opj_decode(dinfo, cio);
115 fprintf(stderr, "ERROR -> j2k_to_image: failed to decode image!\n");
116 opj_destroy_decompress(dinfo);
121 /* close the byte stream */
124 /* free the memory containing the code-stream */
125 delete[] src; //FIXME
129 for (int compno = 0; compno < image->numcomps; compno++)
131 opj_image_comp_t *comp = &image->comps[compno];
133 int w = image->comps[compno].w;
134 int wr = int_ceildivpow2(image->comps[compno].w, image->comps[compno].factor);
136 //int h = image.comps[compno].h;
137 int hr = int_ceildivpow2(image->comps[compno].h, image->comps[compno].factor);
141 uint8_t *data8 = (uint8_t*)raw;
142 for (int i = 0; i < wr * hr; i++)
144 int v = image->comps[compno].data[i / wr * w + i % wr];
145 *data8++ = (uint8_t)v;
148 else if (comp->prec <= 16)
150 uint16_t *data16 = (uint16_t*)raw;
151 for (int i = 0; i < wr * hr; i++)
153 int v = image->comps[compno].data[i / wr * w + i % wr];
154 *data16++ = (uint16_t)v;
159 uint32_t *data32 = (uint32_t*)raw;
160 for (int i = 0; i < wr * hr; i++)
162 int v = image->comps[compno].data[i / wr * w + i % wr];
163 *data32++ = (uint32_t)v;
166 //free(image.comps[compno].data);
170 /* free remaining structures */
172 opj_destroy_decompress(dinfo);
175 /* free image data structure */
176 opj_image_destroy(image);
182 bool gdcm_read_JPEG2000_file (void* raw, char *inputdata, size_t inputlength)
187 // default blindly copied
193 cp.cod_format=J2K_CFMT;
194 cp.decod_format = PGX_DFMT;
195 int len = inputlength;
196 unsigned char *src = (unsigned char*)inputdata;
199 if (!j2k_decode(src, len, &img, &cp))
201 gdcmStaticErrorMacro( "ERROR -> j2k_to_image: failed to decode image!" );
206 for (int compno = 0; compno < img.numcomps; compno++)
208 j2k_comp_t *comp = &img.comps[compno];
210 int w = img.comps[compno].w;
211 int wr = int_ceildivpow2(img.comps[compno].w, img.comps[compno].factor);
213 //int h = img.comps[compno].h;
214 int hr = int_ceildivpow2(img.comps[compno].h, img.comps[compno].factor);
218 uint8_t *data8 = (uint8_t*)raw;
219 for (int i = 0; i < wr * hr; i++)
221 int v = img.comps[compno].data[i / wr * w + i % wr];
222 *data8++ = (uint8_t)v;
225 else if (comp->prec <= 16)
227 uint16_t *data16 = (uint16_t*)raw;
228 for (int i = 0; i < wr * hr; i++)
230 int v = img.comps[compno].data[i / wr * w + i % wr];
231 *data16++ = (uint16_t)v;
236 uint32_t *data32 = (uint32_t*)raw;
237 for (int i = 0; i < wr * hr; i++)
239 int v = img.comps[compno].data[i / wr * w + i % wr];
240 *data32++ = (uint32_t)v;
243 free(img.comps[compno].data);
246 // Free remaining structures
256 bool gdcm_read_JASPER_file (void* raw, char *inputdata, size_t inputlength)
259 std::cerr << "Inputlenght=" << inputlength << std::endl;
260 std::ofstream out("/tmp/jpeg2000.jpc", std::ios::binary);
261 out.write((char*)inputdata,inputlength);
264 jas_init(); //important...
265 jas_stream_t *jasStream =
266 jas_stream_memopen((char *)inputdata, inputlength);
269 if ((fmtid = jas_image_getfmt(jasStream)) < 0)
271 gdcmErrorMacro("unknown image format");
276 jas_image_t *jasImage /* = NULL*/; // Useless assignation
277 if (!(jasImage = jas_image_decode(jasStream, fmtid, 0)))
279 gdcmErrorMacro("cannot decode image");
284 jas_stream_close(jasStream);
285 int numcmpts = jas_image_numcmpts(jasImage);
286 int width = jas_image_cmptwidth(jasImage, 0);
287 int height = jas_image_cmptheight(jasImage, 0);
288 int prec = jas_image_cmptprec(jasImage, 0);
291 // The following should serioulsy be rewritten I cannot believe we need to
292 // do a per pixel decompression, there should be a way to read a full
296 uint8_t *data8 = (uint8_t*)raw;
297 for ( i = 0; i < height; i++)
298 for ( j = 0; j < width; j++)
299 for ( k= 0; k < numcmpts; k++)
300 *data8++ = (uint8_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
304 uint16_t *data16 = (uint16_t*)raw;
305 for ( i = 0; i < height; i++)
306 for ( j = 0; j < width; j++)
307 for ( k= 0; k < numcmpts; k++)
308 *data16++ = (uint16_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
312 uint32_t *data32 = (uint32_t*)raw;
313 for ( i = 0; i < height; i++)
314 for ( j = 0; j < width; j++)
315 for ( k= 0; k < numcmpts; k++)
316 *data32++ = (uint32_t)(jas_image_readcmptsample(jasImage, k, j ,i ));
319 jas_image_destroy(jasImage);
320 jas_image_clearfmts();
323 //delete the jpeg temp buffer
325 std::ofstream rawout("/tmp/jpeg2000.raw");
326 rawout.write((char*)raw,height*width*numcmpts*((prec+4)/8));
335 //-----------------------------------------------------------------------------
336 } // end namespace gdcm