X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2FgdcmJpeg2000.cxx;h=0064240c19a0fcaeeca7e18fe3a38cb5e4dc3b8a;hb=3406c4fd40fed23d938a1c72d985417ce46c3bc0;hp=d8505c26243c27c4ec43f397bfa44ee8ef22973e;hpb=29bdd1e88a28b6267618f633f304e1154537ce7b;p=gdcm.git diff --git a/src/gdcmJpeg2000.cxx b/src/gdcmJpeg2000.cxx index d8505c26..0064240c 100644 --- a/src/gdcmJpeg2000.cxx +++ b/src/gdcmJpeg2000.cxx @@ -1,19 +1,193 @@ +/*========================================================================= + + Program: gdcm + Module: $RCSfile: gdcmJpeg2000.cxx,v $ + Language: C++ + Date: $Date: 2005/11/04 15:20:13 $ + Version: $Revision: 1.33 $ + + Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de + l'Image). All rights reserved. See Doc/License.txt or + http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details. + + This software is distributed WITHOUT ANY WARRANTY; without even + the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR + PURPOSE. See the above copyright notices for more information. + +=========================================================================*/ +#include "gdcmFileHelper.h" +#include "gdcmDebug.h" + +#include +#include + +extern "C" { + #include +} + +namespace gdcm +{ +//----------------------------------------------------------------------------- + /** + * \brief routine for JPEG decompression + * @param raw raw + * @param inputdata inputdata + * @param inputlength inputlength + * @return 1 on success, 0 on error + */ + +bool gdcm_read_JPEG2000_file (void* raw, char *inputdata, size_t inputlength) +{ + j2k_image_t img; + j2k_cp_t cp; + + // default blindly copied + cp.layer=0; + cp.reduce=0; + cp.decod_format=-1; + cp.cod_format=-1; + + cp.cod_format=J2K_CFMT; + cp.decod_format = PGX_DFMT; + int len = inputlength; + unsigned char *src = (unsigned char*)inputdata; - /* -------------------------------------------------------------------- */ - // - // JPEG 2000 Files - // - /* -------------------------------------------------------------------- */ + // Decompression + if (!j2k_decode(src, len, &img, &cp)) + { + gdcmErrorMacro( "ERROR -> j2k_to_image: failed to decode image!" ); + return false; + } + + // Copy buffer + for (int compno = 0; compno < img.numcomps; compno++) + { + j2k_comp_t *comp = &img.comps[compno]; + + int w = img.comps[compno].w; + int wr = int_ceildivpow2(img.comps[compno].w, img.comps[compno].factor); + + //int h = img.comps[compno].h; + int hr = int_ceildivpow2(img.comps[compno].h, img.comps[compno].factor); + + if (comp->prec <= 8) + { + uint8_t *data8 = (uint8_t*)raw; + for (int i = 0; i < wr * hr; i++) + { + int v = img.comps[compno].data[i / wr * w + i % wr]; + *data8++ = (uint8_t)v; + } + } + else if (comp->prec <= 16) + { + uint16_t *data16 = (uint16_t*)raw; + for (int i = 0; i < wr * hr; i++) + { + int v = img.comps[compno].data[i / wr * w + i % wr]; + *data16++ = (uint16_t)v; + } + } + else + { + uint32_t *data32 = (uint32_t*)raw; + for (int i = 0; i < wr * hr; i++) + { + int v = img.comps[compno].data[i / wr * w + i % wr]; + *data32++ = (uint32_t)v; + } + } + free(img.comps[compno].data); + } + + // Free remaining structures + j2k_dec_release(); + // FIXME + delete[] inputdata; + + return true; +} + +#if 0 +bool gdcm_read_JASPER_file (void* raw, char *inputdata, size_t inputlength) +{ +#if 0 + std::cerr << "Inputlenght=" << inputlength << std::endl; + std::ofstream out("/tmp/jpeg2000.jpc", std::ios::binary); + out.write((char*)inputdata,inputlength); + out.close(); +#endif + jas_init(); //important... + jas_stream_t *jasStream = + jas_stream_memopen((char *)inputdata, inputlength); + + int fmtid; + if ((fmtid = jas_image_getfmt(jasStream)) < 0) + { + gdcmErrorMacro("unknown image format"); + return false; + } + + // Decode the image. + jas_image_t *jasImage /* = NULL*/; // Useless assignation + if (!(jasImage = jas_image_decode(jasStream, fmtid, 0))) + { + gdcmErrorMacro("cannot decode image"); + return false; + } + + // close the stream. + jas_stream_close(jasStream); + int numcmpts = jas_image_numcmpts(jasImage); + int width = jas_image_cmptwidth(jasImage, 0); + int height = jas_image_cmptheight(jasImage, 0); + int prec = jas_image_cmptprec(jasImage, 0); + int i, j, k; -#include -#include "gdcmFile.h" + // The following should serioulsy be rewritten I cannot believe we need to + // do a per pixel decompression, there should be a way to read a full + // scanline... + if (prec == 8) + { + uint8_t *data8 = (uint8_t*)raw; + for ( i = 0; i < height; i++) + for ( j = 0; j < width; j++) + for ( k= 0; k < numcmpts; k++) + *data8++ = (uint8_t)(jas_image_readcmptsample(jasImage, k, j ,i )); + } + else if (prec <= 16) + { + uint16_t *data16 = (uint16_t*)raw; + for ( i = 0; i < height; i++) + for ( j = 0; j < width; j++) + for ( k= 0; k < numcmpts; k++) + *data16++ = (uint16_t)(jas_image_readcmptsample(jasImage, k, j ,i )); + } + else if (prec <= 32) + { + uint32_t *data32 = (uint32_t*)raw; + for ( i = 0; i < height; i++) + for ( j = 0; j < width; j++) + for ( k= 0; k < numcmpts; k++) + *data32++ = (uint32_t)(jas_image_readcmptsample(jasImage, k, j ,i )); + } -int -gdcmFile::gdcm_read_JPEG2000_file (void * image_buffer) { + jas_image_destroy(jasImage); + jas_image_clearfmts(); + //FIXME + //delete the jpeg temp buffer +#if 0 + std::ofstream rawout("/tmp/jpeg2000.raw"); + rawout.write((char*)raw,height*width*numcmpts*((prec+4)/8)); + rawout.close(); +#endif + delete[] inputdata; - printf("Sorry JPEG 2000 File not yet taken into account\n"); - return 0; + return true; } +#endif +//----------------------------------------------------------------------------- +} // end namespace gdcm