2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
13 % Read/Write JPEG-2000 Image Format %
20 % Copyright 1999-2015 ImageMagick Studio LLC, a non-profit organization %
21 % dedicated to making software imaging solutions freely available. %
23 % You may not use this file except in compliance with the License. You may %
24 % obtain a copy of the License at %
26 % http://www.imagemagick.org/script/license.php %
28 % Unless required by applicable law or agreed to in writing, software %
29 % distributed under the License is distributed on an "AS IS" BASIS, %
30 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
31 % See the License for the specific language governing permissions and %
32 % limitations under the License. %
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
42 #include "MagickCore/studio.h"
43 #include "MagickCore/artifact.h"
44 #include "MagickCore/attribute.h"
45 #include "MagickCore/blob.h"
46 #include "MagickCore/blob-private.h"
47 #include "MagickCore/cache.h"
48 #include "MagickCore/colorspace.h"
49 #include "MagickCore/colorspace-private.h"
50 #include "MagickCore/color.h"
51 #include "MagickCore/color-private.h"
52 #include "MagickCore/exception.h"
53 #include "MagickCore/exception-private.h"
54 #include "MagickCore/image.h"
55 #include "MagickCore/image-private.h"
56 #include "MagickCore/list.h"
57 #include "MagickCore/magick.h"
58 #include "MagickCore/memory_.h"
59 #include "MagickCore/monitor.h"
60 #include "MagickCore/monitor-private.h"
61 #include "MagickCore/option.h"
62 #include "MagickCore/pixel-accessor.h"
63 #include "MagickCore/profile.h"
64 #include "MagickCore/property.h"
65 #include "MagickCore/quantum-private.h"
66 #include "MagickCore/semaphore.h"
67 #include "MagickCore/static.h"
68 #include "MagickCore/statistic.h"
69 #include "MagickCore/string_.h"
70 #include "MagickCore/string-private.h"
71 #include "MagickCore/module.h"
72 #if defined(MAGICKCORE_LIBOPENJP2_DELEGATE)
79 #if defined(MAGICKCORE_LIBOPENJP2_DELEGATE)
80 static MagickBooleanType
81 WriteJP2Image(const ImageInfo *,Image *,ExceptionInfo *);
85 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
93 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
95 % IsJ2K() returns MagickTrue if the image format type, identified by the
96 % magick string, is J2K.
98 % The format of the IsJ2K method is:
100 % MagickBooleanType IsJ2K(const unsigned char *magick,const size_t length)
102 % A description of each parameter follows:
104 % o magick: compare image format pattern against these bytes.
106 % o length: Specifies the length of the magick string.
109 static MagickBooleanType IsJ2K(const unsigned char *magick,const size_t length)
113 if (memcmp(magick,"\xff\x4f\xff\x51",4) == 0)
119 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
127 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
129 % IsJP2() returns MagickTrue if the image format type, identified by the
130 % magick string, is JP2.
132 % The format of the IsJP2 method is:
134 % MagickBooleanType IsJP2(const unsigned char *magick,const size_t length)
136 % A description of each parameter follows:
138 % o magick: compare image format pattern against these bytes.
140 % o length: Specifies the length of the magick string.
143 static MagickBooleanType IsJP2(const unsigned char *magick,const size_t length)
147 if (memcmp(magick,"\x0d\x0a\x87\x0a",4) == 0)
151 if (memcmp(magick,"\x00\x00\x00\x0c\x6a\x50\x20\x20\x0d\x0a\x87\x0a",12) == 0)
157 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
161 % R e a d J P 2 I m a g e %
165 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
167 % ReadJP2Image() reads a JPEG 2000 Image file (JP2) or JPEG 2000
168 % codestream (JPC) image file and returns it. It allocates the memory
169 % necessary for the new Image structure and returns a pointer to the new
170 % image or set of images.
172 % JP2 support is originally written by Nathan Brown, nathanbrown@letu.edu.
174 % The format of the ReadJP2Image method is:
176 % Image *ReadJP2Image(const ImageInfo *image_info,
177 % ExceptionInfo *exception)
179 % A description of each parameter follows:
181 % o image_info: the image info.
183 % o exception: return any errors or warnings in this structure.
186 #if defined(MAGICKCORE_LIBOPENJP2_DELEGATE)
187 static void JP2ErrorHandler(const char *message,void *client_data)
192 exception=(ExceptionInfo *) client_data;
193 (void) ThrowMagickException(exception,GetMagickModule(),CoderError,
194 message,"`%s'","OpenJP2");
197 static OPJ_SIZE_T JP2ReadHandler(void *buffer,OPJ_SIZE_T length,void *context)
205 image=(Image *) context;
206 count=ReadBlob(image,(ssize_t) length,(unsigned char *) buffer);
208 return((OPJ_SIZE_T) -1);
209 return((OPJ_SIZE_T) count);
212 static OPJ_BOOL JP2SeekHandler(OPJ_OFF_T offset,void *context)
217 image=(Image *) context;
218 return(SeekBlob(image,offset,SEEK_SET) < 0 ? OPJ_FALSE : OPJ_TRUE);
221 static OPJ_OFF_T JP2SkipHandler(OPJ_OFF_T offset,void *context)
226 image=(Image *) context;
227 return(SeekBlob(image,offset,SEEK_CUR) < 0 ? -1 : offset);
230 static void JP2WarningHandler(const char *message,void *client_data)
235 exception=(ExceptionInfo *) client_data;
236 (void) ThrowMagickException(exception,GetMagickModule(),CoderWarning,
237 message,"`%s'","OpenJP2");
240 static OPJ_SIZE_T JP2WriteHandler(void *buffer,OPJ_SIZE_T length,void *context)
248 image=(Image *) context;
249 count=WriteBlob(image,(ssize_t) length,(unsigned char *) buffer);
250 return((OPJ_SIZE_T) count);
253 static Image *ReadJP2Image(const ImageInfo *image_info,ExceptionInfo *exception)
270 opj_codestream_index_t
271 *codestream_index = (opj_codestream_index_t *) NULL;
294 assert(image_info != (const ImageInfo *) NULL);
295 assert(image_info->signature == MagickSignature);
296 if (image_info->debug != MagickFalse)
297 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
298 image_info->filename);
299 assert(exception != (ExceptionInfo *) NULL);
300 assert(exception->signature == MagickSignature);
301 image=AcquireImage(image_info,exception);
302 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
303 if (status == MagickFalse)
305 image=DestroyImageList(image);
306 return((Image *) NULL);
309 Initialize JP2 codec.
311 if (ReadBlob(image,4,sans) != 4)
313 image=DestroyImageList(image);
314 return((Image *) NULL);
316 (void) SeekBlob(image,SEEK_SET,0);
317 if (LocaleCompare(image_info->magick,"JPT") == 0)
318 jp2_codec=opj_create_decompress(OPJ_CODEC_JPT);
320 if (IsJ2K(sans,4) != MagickFalse)
321 jp2_codec=opj_create_decompress(OPJ_CODEC_J2K);
323 jp2_codec=opj_create_decompress(OPJ_CODEC_JP2);
324 opj_set_warning_handler(jp2_codec,JP2WarningHandler,exception);
325 opj_set_error_handler(jp2_codec,JP2ErrorHandler,exception);
326 opj_set_default_decoder_parameters(¶meters);
327 option=GetImageOption(image_info,"jp2:reduce-factor");
328 if (option != (const char *) NULL)
329 parameters.cp_reduce=StringToInteger(option);
330 option=GetImageOption(image_info,"jp2:quality-layers");
331 if (option != (const char *) NULL)
332 parameters.cp_layer=StringToInteger(option);
333 if (opj_setup_decoder(jp2_codec,¶meters) == 0)
335 opj_destroy_codec(jp2_codec);
336 ThrowReaderException(DelegateError,"UnableToManageJP2Stream");
338 jp2_stream=opj_stream_create(OPJ_J2K_STREAM_CHUNK_SIZE,1);
339 opj_stream_set_read_function(jp2_stream,JP2ReadHandler);
340 opj_stream_set_write_function(jp2_stream,JP2WriteHandler);
341 opj_stream_set_seek_function(jp2_stream,JP2SeekHandler);
342 opj_stream_set_skip_function(jp2_stream,JP2SkipHandler);
343 opj_stream_set_user_data(jp2_stream,image,NULL);
344 opj_stream_set_user_data_length(jp2_stream,GetBlobSize(image));
345 if (opj_read_header(jp2_stream,jp2_codec,&jp2_image) == 0)
347 opj_stream_destroy(jp2_stream);
348 opj_destroy_codec(jp2_codec);
349 ThrowReaderException(DelegateError,"UnableToDecodeImageFile");
352 if ((image->columns != 0) && (image->rows != 0))
355 Extract an area from the image.
357 jp2_status=opj_set_decode_area(jp2_codec,jp2_image,
358 (OPJ_INT32) image->extract_info.x,(OPJ_INT32) image->extract_info.y,
359 (OPJ_INT32) (image->extract_info.x+(ssize_t) image->columns),
360 (OPJ_INT32) (image->extract_info.y+(ssize_t) image->rows));
363 opj_stream_destroy(jp2_stream);
364 opj_destroy_codec(jp2_codec);
365 opj_image_destroy(jp2_image);
366 ThrowReaderException(DelegateError,"UnableToDecodeImageFile");
369 if (image_info->number_scenes != 0)
370 jp2_status=opj_get_decoded_tile(jp2_codec,jp2_stream,jp2_image,
371 (unsigned int) image_info->scene);
373 if (image->ping == MagickFalse)
375 jp2_status=opj_decode(jp2_codec,jp2_stream,jp2_image);
377 jp2_status=opj_end_decompress(jp2_codec,jp2_stream);
381 opj_stream_destroy(jp2_stream);
382 opj_destroy_codec(jp2_codec);
383 opj_image_destroy(jp2_image);
384 ThrowReaderException(DelegateError,"UnableToDecodeImageFile");
386 opj_stream_destroy(jp2_stream);
387 for (i=0; i < (ssize_t) jp2_image->numcomps; i++)
389 if ((jp2_image->comps[i].dx == 0) || (jp2_image->comps[i].dy == 0))
391 opj_destroy_codec(jp2_codec);
392 opj_image_destroy(jp2_image);
393 ThrowReaderException(CoderError,"IrregularChannelGeometryNotSupported")
399 image->columns=(size_t) jp2_image->comps[0].w;
400 image->rows=(size_t) jp2_image->comps[0].h;
401 image->depth=jp2_image->comps[0].prec;
402 status=SetImageExtent(image,image->columns,image->rows,exception);
403 if (status == MagickFalse)
404 return(DestroyImageList(image));
405 image->compression=JPEG2000Compression;
406 if (jp2_image->numcomps <= 2)
408 SetImageColorspace(image,GRAYColorspace,exception);
409 if (jp2_image->numcomps > 1)
410 image->alpha_trait=BlendPixelTrait;
412 if (jp2_image->numcomps > 3)
413 image->alpha_trait=BlendPixelTrait;
414 for (i=0; i < (ssize_t) jp2_image->numcomps; i++)
415 if ((jp2_image->comps[i].dx > 1) || (jp2_image->comps[i].dy > 1))
416 SetImageColorspace(image,YUVColorspace,exception);
417 if (jp2_image->icc_profile_buf != (unsigned char *) NULL)
422 profile=BlobToStringInfo(jp2_image->icc_profile_buf,
423 jp2_image->icc_profile_len);
424 if (profile != (StringInfo *) NULL)
425 SetImageProfile(image,"icc",profile,exception);
427 if (image->ping != MagickFalse)
429 opj_destroy_codec(jp2_codec);
430 opj_image_destroy(jp2_image);
431 opj_destroy_cstr_index(&codestream_index);
432 return(GetFirstImageInList(image));
434 for (y=0; y < (ssize_t) image->rows; y++)
442 q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
443 if (q == (Quantum *) NULL)
445 for (x=0; x < (ssize_t) image->columns; x++)
450 for (i=0; i < (ssize_t) jp2_image->numcomps; i++)
456 scale=QuantumRange/(double) ((1UL << jp2_image->comps[i].prec)-1);
457 pixel=scale*(jp2_image->comps[i].data[y/jp2_image->comps[i].dy*
458 image->columns/jp2_image->comps[i].dx+x/jp2_image->comps[i].dx]+
459 (jp2_image->comps[i].sgnd ? 1UL << (jp2_image->comps[i].prec-1) : 0));
464 SetPixelRed(image,ClampToQuantum(pixel),q);
465 SetPixelGreen(image,ClampToQuantum(pixel),q);
466 SetPixelBlue(image,ClampToQuantum(pixel),q);
467 SetPixelAlpha(image,OpaqueAlpha,q);
472 if (jp2_image->numcomps == 2)
474 SetPixelAlpha(image,ClampToQuantum(pixel),q);
477 SetPixelGreen(image,ClampToQuantum(pixel),q);
482 SetPixelBlue(image,ClampToQuantum(pixel),q);
487 SetPixelAlpha(image,ClampToQuantum(pixel),q);
492 q+=GetPixelChannels(image);
494 if (SyncAuthenticPixels(image,exception) == MagickFalse)
496 status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
498 if (status == MagickFalse)
504 opj_destroy_codec(jp2_codec);
505 opj_image_destroy(jp2_image);
506 opj_destroy_cstr_index(&codestream_index);
507 return(GetFirstImageInList(image));
512 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
516 % R e g i s t e r J P 2 I m a g e %
520 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
522 % RegisterJP2Image() adds attributes for the JP2 image format to the list of
523 % supported formats. The attributes include the image format tag, a method
524 % method to read and/or write the format, whether the format supports the
525 % saving of more than one frame to the same file or blob, whether the format
526 % supports native in-memory I/O, and a brief description of the format.
528 % The format of the RegisterJP2Image method is:
530 % size_t RegisterJP2Image(void)
533 ModuleExport size_t RegisterJP2Image(void)
536 version[MagickPathExtent];
542 #if defined(MAGICKCORE_LIBOPENJP2_DELEGATE)
543 (void) FormatLocaleString(version,MagickPathExtent,"%s",opj_version());
545 entry=AcquireMagickInfo("JP2","JP2","JPEG-2000 File Format Syntax");
546 if (*version != '\0')
547 entry->version=ConstantString(version);
548 entry->mime_type=ConstantString("image/jp2");
549 entry->magick=(IsImageFormatHandler *) IsJP2;
550 entry->flags^=CoderAdjoinFlag;
551 entry->flags|=CoderSeekableStreamFlag;
552 #if defined(MAGICKCORE_LIBOPENJP2_DELEGATE)
553 entry->decoder=(DecodeImageHandler *) ReadJP2Image;
554 entry->encoder=(EncodeImageHandler *) WriteJP2Image;
556 (void) RegisterMagickInfo(entry);
557 entry=AcquireMagickInfo("JP2","J2C","JPEG-2000 Code Stream Syntax");
558 if (*version != '\0')
559 entry->version=ConstantString(version);
560 entry->mime_type=ConstantString("image/jp2");
561 entry->magick=(IsImageFormatHandler *) IsJ2K;
562 entry->flags^=CoderAdjoinFlag;
563 entry->flags|=CoderSeekableStreamFlag;
564 #if defined(MAGICKCORE_LIBOPENJP2_DELEGATE)
565 entry->decoder=(DecodeImageHandler *) ReadJP2Image;
566 entry->encoder=(EncodeImageHandler *) WriteJP2Image;
568 (void) RegisterMagickInfo(entry);
569 entry=AcquireMagickInfo("JP2","J2K","JPEG-2000 Code Stream Syntax");
570 if (*version != '\0')
571 entry->version=ConstantString(version);
572 entry->mime_type=ConstantString("image/jp2");
573 entry->magick=(IsImageFormatHandler *) IsJ2K;
574 entry->flags^=CoderAdjoinFlag;
575 entry->flags|=CoderSeekableStreamFlag;
576 #if defined(MAGICKCORE_LIBOPENJP2_DELEGATE)
577 entry->decoder=(DecodeImageHandler *) ReadJP2Image;
578 entry->encoder=(EncodeImageHandler *) WriteJP2Image;
580 (void) RegisterMagickInfo(entry);
581 entry=AcquireMagickInfo("JP2","JPM","JPEG-2000 File Format Syntax");
582 if (*version != '\0')
583 entry->version=ConstantString(version);
584 entry->mime_type=ConstantString("image/jp2");
585 entry->magick=(IsImageFormatHandler *) IsJP2;
586 entry->flags^=CoderAdjoinFlag;
587 entry->flags|=CoderSeekableStreamFlag;
588 #if defined(MAGICKCORE_LIBOPENJP2_DELEGATE)
589 entry->decoder=(DecodeImageHandler *) ReadJP2Image;
590 entry->encoder=(EncodeImageHandler *) WriteJP2Image;
592 (void) RegisterMagickInfo(entry);
593 entry=AcquireMagickInfo("JP2","JPT","JPEG-2000 File Format Syntax");
594 if (*version != '\0')
595 entry->version=ConstantString(version);
596 entry->mime_type=ConstantString("image/jp2");
597 entry->magick=(IsImageFormatHandler *) IsJP2;
598 entry->flags^=CoderAdjoinFlag;
599 entry->flags|=CoderSeekableStreamFlag;
600 #if defined(MAGICKCORE_LIBOPENJP2_DELEGATE)
601 entry->decoder=(DecodeImageHandler *) ReadJP2Image;
602 entry->encoder=(EncodeImageHandler *) WriteJP2Image;
604 (void) RegisterMagickInfo(entry);
605 entry=AcquireMagickInfo("JP2","JPC","JPEG-2000 Code Stream Syntax");
606 if (*version != '\0')
607 entry->version=ConstantString(version);
608 entry->mime_type=ConstantString("image/jp2");
609 entry->magick=(IsImageFormatHandler *) IsJP2;
610 entry->flags^=CoderAdjoinFlag;
611 entry->flags|=CoderSeekableStreamFlag;
612 #if defined(MAGICKCORE_LIBOPENJP2_DELEGATE)
613 entry->decoder=(DecodeImageHandler *) ReadJP2Image;
614 entry->encoder=(EncodeImageHandler *) WriteJP2Image;
616 (void) RegisterMagickInfo(entry);
617 return(MagickImageCoderSignature);
621 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
625 % U n r e g i s t e r J P 2 I m a g e %
629 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
631 % UnregisterJP2Image() removes format registrations made by the JP2 module
632 % from the list of supported formats.
634 % The format of the UnregisterJP2Image method is:
636 % UnregisterJP2Image(void)
639 ModuleExport void UnregisterJP2Image(void)
641 (void) UnregisterMagickInfo("JPC");
642 (void) UnregisterMagickInfo("JPT");
643 (void) UnregisterMagickInfo("JPM");
644 (void) UnregisterMagickInfo("JP2");
645 (void) UnregisterMagickInfo("J2K");
648 #if defined(MAGICKCORE_LIBOPENJP2_DELEGATE)
650 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
654 % W r i t e J P 2 I m a g e %
658 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
660 % WriteJP2Image() writes an image in the JPEG 2000 image format.
662 % JP2 support originally written by Nathan Brown, nathanbrown@letu.edu
664 % The format of the WriteJP2Image method is:
666 % MagickBooleanType WriteJP2Image(const ImageInfo *image_info,Image *image,
667 % ExceptionInfo *exception)
669 % A description of each parameter follows.
671 % o image_info: the image info.
673 % o image: The image.
677 static void CinemaProfileCompliance(const opj_image_t *jp2_image,
678 opj_cparameters_t *parameters)
681 Digital Cinema 4K profile compliant codestream.
683 parameters->tile_size_on=OPJ_FALSE;
684 parameters->cp_tdx=1;
685 parameters->cp_tdy=1;
686 parameters->tp_flag='C';
688 parameters->cp_tx0=0;
689 parameters->cp_ty0=0;
690 parameters->image_offset_x0=0;
691 parameters->image_offset_y0=0;
692 parameters->cblockw_init=32;
693 parameters->cblockh_init=32;
694 parameters->csty|=0x01;
695 parameters->prog_order=OPJ_CPRL;
696 parameters->roi_compno=(-1);
697 parameters->subsampling_dx=1;
698 parameters->subsampling_dy=1;
699 parameters->irreversible=1;
700 if ((jp2_image->comps[0].w == 2048) || (jp2_image->comps[0].h == 1080))
705 parameters->cp_cinema=OPJ_CINEMA2K_24;
706 parameters->cp_rsiz=OPJ_CINEMA2K;
707 parameters->max_comp_size=1041666;
708 if (parameters->numresolution > 6)
709 parameters->numresolution=6;
712 if ((jp2_image->comps[0].w == 4096) || (jp2_image->comps[0].h == 2160))
717 parameters->cp_cinema=OPJ_CINEMA4K_24;
718 parameters->cp_rsiz=OPJ_CINEMA4K;
719 parameters->max_comp_size=1041666;
720 if (parameters->numresolution < 1)
721 parameters->numresolution=1;
722 if (parameters->numresolution > 7)
723 parameters->numresolution=7;
724 parameters->numpocs=2;
725 parameters->POC[0].tile=1;
726 parameters->POC[0].resno0=0;
727 parameters->POC[0].compno0=0;
728 parameters->POC[0].layno1=1;
729 parameters->POC[0].resno1=parameters->numresolution-1;
730 parameters->POC[0].compno1=3;
731 parameters->POC[0].prg1=OPJ_CPRL;
732 parameters->POC[1].tile=1;
733 parameters->POC[1].resno0=parameters->numresolution-1;
734 parameters->POC[1].compno0=0;
735 parameters->POC[1].layno1=1;
736 parameters->POC[1].resno1=parameters->numresolution;
737 parameters->POC[1].compno1=3;
738 parameters->POC[1].prg1=OPJ_CPRL;
740 parameters->tcp_numlayers=1;
741 parameters->tcp_rates[0]=((float) (jp2_image->numcomps*jp2_image->comps[0].w*
742 jp2_image->comps[0].h*jp2_image->comps[0].prec))/(parameters->max_comp_size*
743 8*jp2_image->comps[0].dx*jp2_image->comps[0].dy);
744 parameters->cp_disto_alloc=1;
747 static MagickBooleanType WriteJP2Image(const ImageInfo *image_info,Image *image,
748 ExceptionInfo *exception)
790 assert(image_info != (const ImageInfo *) NULL);
791 assert(image_info->signature == MagickSignature);
792 assert(image != (Image *) NULL);
793 assert(image->signature == MagickSignature);
794 if (image->debug != MagickFalse)
795 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
796 assert(exception != (ExceptionInfo *) NULL);
797 assert(exception->signature == MagickSignature);
798 status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
799 if (status == MagickFalse)
802 Initialize JPEG 2000 API.
804 opj_set_default_encoder_parameters(¶meters);
805 for (i=1; i < 6; i++)
806 if (((1U << (i+2)) > image->columns) && ((1U << (i+2)) > image->rows))
808 parameters.numresolution=i;
809 option=GetImageOption(image_info,"jp2:number-resolutions");
810 if (option != (const char *) NULL)
811 parameters.numresolution=StringToInteger(option);
812 parameters.tcp_numlayers=1;
813 parameters.tcp_rates[0]=0; /* lossless */
814 parameters.cp_disto_alloc=1;
815 if (image->quality != 0)
817 parameters.tcp_distoratio[0]=(double) image->quality;
818 parameters.cp_fixed_quality=OPJ_TRUE;
820 if (image_info->extract != (char *) NULL)
831 flags=ParseAbsoluteGeometry(image_info->extract,&geometry);
832 parameters.cp_tdx=(int) geometry.width;
833 parameters.cp_tdy=(int) geometry.width;
834 if ((flags & HeightValue) != 0)
835 parameters.cp_tdy=(int) geometry.height;
836 if ((flags & XValue) != 0)
837 parameters.cp_tx0=geometry.x;
838 if ((flags & YValue) != 0)
839 parameters.cp_ty0=geometry.y;
840 parameters.tile_size_on=OPJ_TRUE;
842 option=GetImageOption(image_info,"jp2:quality");
843 if (option != (const char *) NULL)
852 for (i=0; sscanf(p,"%f",¶meters.tcp_distoratio[i]) == 1; i++)
856 while ((*p != '\0') && (*p != ','))
862 parameters.tcp_numlayers=i+1;
863 parameters.cp_fixed_quality=OPJ_TRUE;
865 option=GetImageOption(image_info,"jp2:progression-order");
866 if (option != (const char *) NULL)
868 if (LocaleCompare(option,"LRCP") == 0)
869 parameters.prog_order=OPJ_LRCP;
870 if (LocaleCompare(option,"RLCP") == 0)
871 parameters.prog_order=OPJ_RLCP;
872 if (LocaleCompare(option,"RPCL") == 0)
873 parameters.prog_order=OPJ_RPCL;
874 if (LocaleCompare(option,"PCRL") == 0)
875 parameters.prog_order=OPJ_PCRL;
876 if (LocaleCompare(option,"CPRL") == 0)
877 parameters.prog_order=OPJ_CPRL;
879 option=GetImageOption(image_info,"jp2:rate");
880 if (option != (const char *) NULL)
886 Set compression rate.
889 for (i=0; sscanf(p,"%f",¶meters.tcp_rates[i]) == 1; i++)
893 while ((*p != '\0') && (*p != ','))
899 parameters.tcp_numlayers=i+1;
900 parameters.cp_disto_alloc=OPJ_TRUE;
902 if (image_info->sampling_factor != (const char *) NULL)
903 (void) sscanf(image_info->sampling_factor,"%d,%d",
904 ¶meters.subsampling_dx,¶meters.subsampling_dy);
905 property=GetImageProperty(image,"comment",exception);
906 if (property != (const char *) NULL)
907 parameters.cp_comment=ConstantString(property);
909 jp2_colorspace=OPJ_CLRSPC_SRGB;
910 if (image->colorspace == YUVColorspace)
912 jp2_colorspace=OPJ_CLRSPC_SYCC;
913 parameters.subsampling_dx=2;
917 (void) TransformImageColorspace(image,sRGBColorspace,exception);
918 if (IsGrayColorspace(image->colorspace) != MagickFalse)
921 jp2_colorspace=OPJ_CLRSPC_GRAY;
923 if (image->alpha_trait != UndefinedPixelTrait)
926 parameters.tcp_mct=channels == 3 ? 1 : 0;
927 ResetMagickMemory(jp2_info,0,sizeof(jp2_info));
928 for (i=0; i < (ssize_t) channels; i++)
930 jp2_info[i].prec=(OPJ_UINT32) image->depth;
931 jp2_info[i].bpp=(OPJ_UINT32) image->depth;
932 if ((image->depth == 1) &&
933 ((LocaleCompare(image_info->magick,"JPT") == 0) ||
934 (LocaleCompare(image_info->magick,"JP2") == 0)))
936 jp2_info[i].prec++; /* OpenJPEG returns exception for depth @ 1 */
940 jp2_info[i].dx=parameters.subsampling_dx;
941 jp2_info[i].dy=parameters.subsampling_dy;
942 jp2_info[i].w=(OPJ_UINT32) image->columns;
943 jp2_info[i].h=(OPJ_UINT32) image->rows;
945 jp2_image=opj_image_create((OPJ_UINT32) channels,jp2_info,jp2_colorspace);
946 if (jp2_image == (opj_image_t *) NULL)
947 ThrowWriterException(DelegateError,"UnableToEncodeImageFile");
948 jp2_image->x0=parameters.image_offset_x0;
949 jp2_image->y0=parameters.image_offset_y0;
950 jp2_image->x1=(unsigned int) (2*parameters.image_offset_x0+(image->columns-1)*
951 parameters.subsampling_dx+1);
952 jp2_image->y1=(unsigned int) (2*parameters.image_offset_y0+(image->rows-1)*
953 parameters.subsampling_dx+1);
954 if ((image->depth == 12) &&
955 ((image->columns == 2048) || (image->rows == 1080) ||
956 (image->columns == 4096) || (image->rows == 2160)))
957 CinemaProfileCompliance(jp2_image,¶meters);
959 jp2_image->comps[3].alpha=1;
961 if ((channels == 2) && (jp2_colorspace == OPJ_CLRSPC_GRAY))
962 jp2_image->comps[1].alpha=1;
964 Convert to JP2 pixels.
966 for (y=0; y < (ssize_t) image->rows; y++)
968 register const Quantum
974 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
975 if (p == (const Quantum *) NULL)
977 for (x=0; x < (ssize_t) image->columns; x++)
979 for (i=0; i < (ssize_t) channels; i++)
987 scale=(double) ((1UL << jp2_image->comps[i].prec)-1)/QuantumRange;
988 q=jp2_image->comps[i].data+(y/jp2_image->comps[i].dy*
989 image->columns/jp2_image->comps[i].dx+x/jp2_image->comps[i].dx);
994 if (jp2_colorspace == OPJ_CLRSPC_GRAY)
996 *q=(int) (scale*GetPixelLuma(image,p));
999 *q=(int) (scale*GetPixelRed(image,p));
1004 if (jp2_colorspace == OPJ_CLRSPC_GRAY)
1006 *q=(int) (scale*GetPixelAlpha(image,p));
1009 *q=(int) (scale*GetPixelGreen(image,p));
1014 *q=(int) (scale*GetPixelBlue(image,p));
1019 *q=(int) (scale*GetPixelAlpha(image,p));
1024 p+=GetPixelChannels(image);
1026 status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
1028 if (status == MagickFalse)
1031 if (LocaleCompare(image_info->magick,"JPT") == 0)
1032 jp2_codec=opj_create_compress(OPJ_CODEC_JPT);
1034 if (LocaleCompare(image_info->magick,"J2K") == 0)
1035 jp2_codec=opj_create_compress(OPJ_CODEC_J2K);
1037 jp2_codec=opj_create_compress(OPJ_CODEC_JP2);
1038 opj_set_warning_handler(jp2_codec,JP2WarningHandler,exception);
1039 opj_set_error_handler(jp2_codec,JP2ErrorHandler,exception);
1040 opj_setup_encoder(jp2_codec,¶meters,jp2_image);
1041 jp2_stream=opj_stream_create(OPJ_J2K_STREAM_CHUNK_SIZE,OPJ_FALSE);
1042 opj_stream_set_read_function(jp2_stream,JP2ReadHandler);
1043 opj_stream_set_write_function(jp2_stream,JP2WriteHandler);
1044 opj_stream_set_seek_function(jp2_stream,JP2SeekHandler);
1045 opj_stream_set_skip_function(jp2_stream,JP2SkipHandler);
1046 opj_stream_set_user_data(jp2_stream,image,NULL);
1047 if (jp2_stream == (opj_stream_t *) NULL)
1048 ThrowWriterException(DelegateError,"UnableToEncodeImageFile");
1049 jp2_status=opj_start_compress(jp2_codec,jp2_image,jp2_stream);
1050 if (jp2_status == 0)
1051 ThrowWriterException(DelegateError,"UnableToEncodeImageFile");
1052 if ((opj_encode(jp2_codec,jp2_stream) == 0) ||
1053 (opj_end_compress(jp2_codec,jp2_stream) == 0))
1055 opj_stream_destroy(jp2_stream);
1056 opj_destroy_codec(jp2_codec);
1057 opj_image_destroy(jp2_image);
1058 ThrowWriterException(DelegateError,"UnableToEncodeImageFile");
1063 opj_stream_destroy(jp2_stream);
1064 opj_destroy_codec(jp2_codec);
1065 opj_image_destroy(jp2_image);
1066 (void) CloseBlob(image);