| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % M M AAA TTTTT L AAA BBBB % |
| % MM MM A A T L A A B B % |
| % M M M AAAAA T L AAAAA BBBB % |
| % M M A A T L A A B B % |
| % M M A A T LLLLL A A BBBB % |
| % % |
| % % |
| % Read MATLAB Image Format % |
| % % |
| % Software Design % |
| % Jaroslav Fojtik % |
| % 2001-2008 % |
| % % |
| % % |
| % Permission is hereby granted, free of charge, to any person obtaining a % |
| % copy of this software and associated documentation files ("ImageMagick"), % |
| % to deal in ImageMagick without restriction, including without limitation % |
| % the rights to use, copy, modify, merge, publish, distribute, sublicense, % |
| % and/or sell copies of ImageMagick, and to permit persons to whom the % |
| % ImageMagick is furnished to do so, subject to the following conditions: % |
| % % |
| % The above copyright notice and this permission notice shall be included in % |
| % all copies or substantial portions of ImageMagick. % |
| % % |
| % The software is provided "as is", without warranty of any kind, express or % |
| % implied, including but not limited to the warranties of merchantability, % |
| % fitness for a particular purpose and noninfringement. In no event shall % |
| % ImageMagick Studio be liable for any claim, damages or other liability, % |
| % whether in an action of contract, tort or otherwise, arising from, out of % |
| % or in connection with ImageMagick or the use or other dealings in % |
| % ImageMagick. % |
| % % |
| % Except as contained in this notice, the name of the ImageMagick Studio % |
| % shall not be used in advertising or otherwise to promote the sale, use or % |
| % other dealings in ImageMagick without prior written authorization from the % |
| % ImageMagick Studio. % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % |
| */ |
| |
| /* |
| Include declarations. |
| */ |
| #include "MagickCore/studio.h" |
| #include "MagickCore/attribute.h" |
| #include "MagickCore/blob.h" |
| #include "MagickCore/blob-private.h" |
| #include "MagickCore/cache.h" |
| #include "MagickCore/color-private.h" |
| #include "MagickCore/colormap.h" |
| #include "MagickCore/colorspace-private.h" |
| #include "MagickCore/distort.h" |
| #include "MagickCore/exception.h" |
| #include "MagickCore/exception-private.h" |
| #include "MagickCore/image.h" |
| #include "MagickCore/image-private.h" |
| #include "MagickCore/list.h" |
| #include "MagickCore/magick.h" |
| #include "MagickCore/memory_.h" |
| #include "MagickCore/monitor.h" |
| #include "MagickCore/monitor-private.h" |
| #include "MagickCore/pixel-accessor.h" |
| #include "MagickCore/quantum.h" |
| #include "MagickCore/quantum-private.h" |
| #include "MagickCore/option.h" |
| #include "MagickCore/pixel.h" |
| #include "MagickCore/resource_.h" |
| #include "MagickCore/static.h" |
| #include "MagickCore/string_.h" |
| #include "MagickCore/module.h" |
| #include "MagickCore/transform.h" |
| #include "MagickCore/utility-private.h" |
| #if defined(MAGICKCORE_ZLIB_DELEGATE) |
| #include "zlib.h" |
| #endif |
| |
| /* |
| Forward declaration. |
| */ |
| static MagickBooleanType |
| WriteMATImage(const ImageInfo *,Image *,ExceptionInfo *); |
| |
| |
| /* Auto coloring method, sorry this creates some artefact inside data |
| MinReal+j*MaxComplex = red MaxReal+j*MaxComplex = black |
| MinReal+j*0 = white MaxReal+j*0 = black |
| MinReal+j*MinComplex = blue MaxReal+j*MinComplex = black |
| */ |
| |
| typedef struct |
| { |
| char identific[124]; |
| unsigned short Version; |
| char EndianIndicator[2]; |
| unsigned long DataType; |
| unsigned long ObjectSize; |
| unsigned long unknown1; |
| unsigned long unknown2; |
| |
| unsigned short unknown5; |
| unsigned char StructureFlag; |
| unsigned char StructureClass; |
| unsigned long unknown3; |
| unsigned long unknown4; |
| unsigned long DimFlag; |
| |
| unsigned long SizeX; |
| unsigned long SizeY; |
| unsigned short Flag1; |
| unsigned short NameFlag; |
| } |
| MATHeader; |
| |
| static const char *MonthsTab[12]={"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"}; |
| static const char *DayOfWTab[7]={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"}; |
| static const char *OsDesc= |
| #if defined(MAGICKCORE_WINDOWS_SUPPORT) |
| "PCWIN"; |
| #else |
| #ifdef __APPLE__ |
| "MAC"; |
| #else |
| "LNX86"; |
| #endif |
| #endif |
| |
| typedef enum |
| { |
| miINT8 = 1, /* 8 bit signed */ |
| miUINT8, /* 8 bit unsigned */ |
| miINT16, /* 16 bit signed */ |
| miUINT16, /* 16 bit unsigned */ |
| miINT32, /* 32 bit signed */ |
| miUINT32, /* 32 bit unsigned */ |
| miSINGLE, /* IEEE 754 single precision float */ |
| miRESERVE1, |
| miDOUBLE, /* IEEE 754 double precision float */ |
| miRESERVE2, |
| miRESERVE3, |
| miINT64, /* 64 bit signed */ |
| miUINT64, /* 64 bit unsigned */ |
| miMATRIX, /* MATLAB array */ |
| miCOMPRESSED, /* Compressed Data */ |
| miUTF8, /* Unicode UTF-8 Encoded Character Data */ |
| miUTF16, /* Unicode UTF-16 Encoded Character Data */ |
| miUTF32 /* Unicode UTF-32 Encoded Character Data */ |
| } mat5_data_type; |
| |
| typedef enum |
| { |
| mxCELL_CLASS=1, /* cell array */ |
| mxSTRUCT_CLASS, /* structure */ |
| mxOBJECT_CLASS, /* object */ |
| mxCHAR_CLASS, /* character array */ |
| mxSPARSE_CLASS, /* sparse array */ |
| mxDOUBLE_CLASS, /* double precision array */ |
| mxSINGLE_CLASS, /* single precision floating point */ |
| mxINT8_CLASS, /* 8 bit signed integer */ |
| mxUINT8_CLASS, /* 8 bit unsigned integer */ |
| mxINT16_CLASS, /* 16 bit signed integer */ |
| mxUINT16_CLASS, /* 16 bit unsigned integer */ |
| mxINT32_CLASS, /* 32 bit signed integer */ |
| mxUINT32_CLASS, /* 32 bit unsigned integer */ |
| mxINT64_CLASS, /* 64 bit signed integer */ |
| mxUINT64_CLASS, /* 64 bit unsigned integer */ |
| mxFUNCTION_CLASS /* Function handle */ |
| } arrayclasstype; |
| |
| #define FLAG_COMPLEX 0x8 |
| #define FLAG_GLOBAL 0x4 |
| #define FLAG_LOGICAL 0x2 |
| |
| static const QuantumType z2qtype[4] = {GrayQuantum, BlueQuantum, GreenQuantum, RedQuantum}; |
| |
| |
| static void InsertComplexDoubleRow(Image *image,double *p,int y,double MinVal, |
| double MaxVal,ExceptionInfo *exception) |
| { |
| |
| double f; |
| int x; |
| register Quantum *q; |
| |
| if (MinVal == 0) |
| MinVal = -1; |
| if (MaxVal == 0) |
| MaxVal = 1; |
| |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| return; |
| for (x = 0; x < (ssize_t) image->columns; x++) |
| { |
| if (*p > 0) |
| { |
| f = (*p / MaxVal) * (QuantumRange-GetPixelRed(image,q)); |
| if (f + GetPixelRed(image,q) > QuantumRange) |
| SetPixelRed(image,QuantumRange,q); |
| else |
| SetPixelRed(image,GetPixelRed(image,q)+(int) f,q); |
| if ((int) f / 2.0 > GetPixelGreen(image,q)) |
| { |
| SetPixelGreen(image,0,q); |
| SetPixelBlue(image,0,q); |
| } |
| else |
| { |
| SetPixelBlue(image,GetPixelBlue(image,q)-(int) (f/2.0),q); |
| SetPixelGreen(image,GetPixelBlue(image,q),q); |
| } |
| } |
| if (*p < 0) |
| { |
| f = (*p / MaxVal) * (QuantumRange-GetPixelBlue(image,q)); |
| if (f+GetPixelBlue(image,q) > QuantumRange) |
| SetPixelBlue(image,QuantumRange,q); |
| else |
| SetPixelBlue(image,GetPixelBlue(image,q)+(int) f,q); |
| if ((int) f / 2.0 > GetPixelGreen(image,q)) |
| { |
| SetPixelRed(image,0,q); |
| SetPixelGreen(image,0,q); |
| } |
| else |
| { |
| SetPixelRed(image,GetPixelRed(image,q)-(int) (f/2.0),q); |
| SetPixelGreen(image,GetPixelRed(image,q),q); |
| } |
| } |
| p++; |
| q+=GetPixelChannels(image); |
| } |
| if (!SyncAuthenticPixels(image,exception)) |
| return; |
| return; |
| } |
| |
| |
| static void InsertComplexFloatRow(Image *image,float *p,int y,double MinVal, |
| double MaxVal,ExceptionInfo *exception) |
| { |
| double f; |
| int x; |
| register Quantum *q; |
| |
| if (MinVal == 0) |
| MinVal = -1; |
| if (MaxVal == 0) |
| MaxVal = 1; |
| |
| q = QueueAuthenticPixels(image, 0, y, image->columns, 1,exception); |
| if (q == (Quantum *) NULL) |
| return; |
| for (x = 0; x < (ssize_t) image->columns; x++) |
| { |
| if (*p > 0) |
| { |
| f = (*p / MaxVal) * (QuantumRange-GetPixelRed(image,q)); |
| if (f+GetPixelRed(image,q) > QuantumRange) |
| SetPixelRed(image,QuantumRange,q); |
| else |
| SetPixelRed(image,GetPixelRed(image,q)+(int) f,q); |
| if ((int) f / 2.0 > GetPixelGreen(image,q)) |
| { |
| SetPixelGreen(image,0,q); |
| SetPixelBlue(image,0,q); |
| } |
| else |
| { |
| SetPixelBlue(image,GetPixelBlue(image,q)-(int) (f/2.0),q); |
| SetPixelGreen(image,GetPixelBlue(image,q),q); |
| } |
| } |
| if (*p < 0) |
| { |
| f = (*p / MaxVal) * (QuantumRange - GetPixelBlue(image,q)); |
| if (f + GetPixelBlue(image,q) > QuantumRange) |
| SetPixelBlue(image,QuantumRange,q); |
| else |
| SetPixelBlue(image,GetPixelBlue(image,q)+ |
| (int) f,q); |
| if ((int) f / 2.0 > GetPixelGreen(image,q)) |
| { |
| SetPixelGreen(image,0,q); |
| SetPixelRed(image,0,q); |
| } |
| else |
| { |
| SetPixelRed(image,GetPixelRed(image,q)-(int) (f/2.0),q); |
| SetPixelGreen(image,GetPixelRed(image,q),q); |
| } |
| } |
| p++; |
| q++; |
| } |
| if (!SyncAuthenticPixels(image,exception)) |
| return; |
| return; |
| } |
| |
| |
| /************** READERS ******************/ |
| |
| /* This function reads one block of floats*/ |
| static void ReadBlobFloatsLSB(Image * image, size_t len, float *data) |
| { |
| while (len >= 4) |
| { |
| *data++ = ReadBlobFloat(image); |
| len -= sizeof(float); |
| } |
| if (len > 0) |
| (void) SeekBlob(image, len, SEEK_CUR); |
| } |
| |
| static void ReadBlobFloatsMSB(Image * image, size_t len, float *data) |
| { |
| while (len >= 4) |
| { |
| *data++ = ReadBlobFloat(image); |
| len -= sizeof(float); |
| } |
| if (len > 0) |
| (void) SeekBlob(image, len, SEEK_CUR); |
| } |
| |
| /* This function reads one block of doubles*/ |
| static void ReadBlobDoublesLSB(Image * image, size_t len, double *data) |
| { |
| while (len >= 8) |
| { |
| *data++ = ReadBlobDouble(image); |
| len -= sizeof(double); |
| } |
| if (len > 0) |
| (void) SeekBlob(image, len, SEEK_CUR); |
| } |
| |
| static void ReadBlobDoublesMSB(Image * image, size_t len, double *data) |
| { |
| while (len >= 8) |
| { |
| *data++ = ReadBlobDouble(image); |
| len -= sizeof(double); |
| } |
| if (len > 0) |
| (void) SeekBlob(image, len, SEEK_CUR); |
| } |
| |
| /* Calculate minimum and maximum from a given block of data */ |
| static void CalcMinMax(Image *image, int endian_indicator, int SizeX, int SizeY, size_t CellType, unsigned ldblk, void *BImgBuff, double *Min, double *Max) |
| { |
| MagickOffsetType filepos; |
| int i, x; |
| void (*ReadBlobDoublesXXX)(Image * image, size_t len, double *data); |
| void (*ReadBlobFloatsXXX)(Image * image, size_t len, float *data); |
| double *dblrow; |
| float *fltrow; |
| |
| if (endian_indicator == LSBEndian) |
| { |
| ReadBlobDoublesXXX = ReadBlobDoublesLSB; |
| ReadBlobFloatsXXX = ReadBlobFloatsLSB; |
| } |
| else /* MI */ |
| { |
| ReadBlobDoublesXXX = ReadBlobDoublesMSB; |
| ReadBlobFloatsXXX = ReadBlobFloatsMSB; |
| } |
| |
| filepos = TellBlob(image); /* Please note that file seeking occurs only in the case of doubles */ |
| for (i = 0; i < SizeY; i++) |
| { |
| if (CellType==miDOUBLE) |
| { |
| ReadBlobDoublesXXX(image, ldblk, (double *)BImgBuff); |
| dblrow = (double *)BImgBuff; |
| if (i == 0) |
| { |
| *Min = *Max = *dblrow; |
| } |
| for (x = 0; x < SizeX; x++) |
| { |
| if (*Min > *dblrow) |
| *Min = *dblrow; |
| if (*Max < *dblrow) |
| *Max = *dblrow; |
| dblrow++; |
| } |
| } |
| if (CellType==miSINGLE) |
| { |
| ReadBlobFloatsXXX(image, ldblk, (float *)BImgBuff); |
| fltrow = (float *)BImgBuff; |
| if (i == 0) |
| { |
| *Min = *Max = *fltrow; |
| } |
| for (x = 0; x < (ssize_t) SizeX; x++) |
| { |
| if (*Min > *fltrow) |
| *Min = *fltrow; |
| if (*Max < *fltrow) |
| *Max = *fltrow; |
| fltrow++; |
| } |
| } |
| } |
| (void) SeekBlob(image, filepos, SEEK_SET); |
| } |
| |
| |
| static void FixSignedValues(const Image *image,Quantum *q, int y) |
| { |
| while(y-->0) |
| { |
| /* Please note that negative values will overflow |
| Q=8; QuantumRange=255: <0;127> + 127+1 = <128; 255> |
| <-1;-128> + 127+1 = <0; 127> */ |
| SetPixelRed(image,GetPixelRed(image,q)+QuantumRange/2+1,q); |
| SetPixelGreen(image,GetPixelGreen(image,q)+QuantumRange/2+1,q); |
| SetPixelBlue(image,GetPixelBlue(image,q)+QuantumRange/2+1,q); |
| q++; |
| } |
| } |
| |
| |
| /** Fix whole row of logical/binary data. It means pack it. */ |
| static void FixLogical(unsigned char *Buff,int ldblk) |
| { |
| unsigned char mask=128; |
| unsigned char *BuffL = Buff; |
| unsigned char val = 0; |
| |
| while(ldblk-->0) |
| { |
| if(*Buff++ != 0) |
| val |= mask; |
| |
| mask >>= 1; |
| if(mask==0) |
| { |
| *BuffL++ = val; |
| val = 0; |
| mask = 128; |
| } |
| |
| } |
| *BuffL = val; |
| } |
| |
| #if defined(MAGICKCORE_ZLIB_DELEGATE) |
| static voidpf AcquireZIPMemory(voidpf context,unsigned int items, |
| unsigned int size) |
| { |
| (void) context; |
| return((voidpf) AcquireQuantumMemory(items,size)); |
| } |
| |
| static void RelinquishZIPMemory(voidpf context,voidpf memory) |
| { |
| (void) context; |
| memory=RelinquishMagickMemory(memory); |
| } |
| #endif |
| |
| #if defined(MAGICKCORE_ZLIB_DELEGATE) |
| /** This procedure decompreses an image block for a new MATLAB format. */ |
| static Image *DecompressBlock(Image *orig, MagickOffsetType Size, ImageInfo *clone_info, ExceptionInfo *exception) |
| { |
| |
| Image *image2; |
| void *CacheBlock, *DecompressBlock; |
| z_stream zip_info; |
| FILE *mat_file; |
| size_t magick_size; |
| size_t extent; |
| int file; |
| |
| int status; |
| int zip_status; |
| |
| if(clone_info==NULL) return NULL; |
| if(clone_info->file) /* Close file opened from previous transaction. */ |
| { |
| fclose(clone_info->file); |
| clone_info->file = NULL; |
| (void) remove_utf8(clone_info->filename); |
| } |
| |
| CacheBlock = AcquireQuantumMemory((size_t)((Size<16384)?Size:16384),sizeof(unsigned char *)); |
| if(CacheBlock==NULL) return NULL; |
| DecompressBlock = AcquireQuantumMemory((size_t)(4096),sizeof(unsigned char *)); |
| if(DecompressBlock==NULL) |
| { |
| RelinquishMagickMemory(CacheBlock); |
| return NULL; |
| } |
| |
| mat_file=0; |
| file = AcquireUniqueFileResource(clone_info->filename); |
| if (file != -1) |
| mat_file = fdopen(file,"w"); |
| if(!mat_file) |
| { |
| RelinquishMagickMemory(CacheBlock); |
| RelinquishMagickMemory(DecompressBlock); |
| (void) LogMagickEvent(CoderEvent,GetMagickModule(),"Cannot create file stream for decompressed image"); |
| return NULL; |
| } |
| |
| zip_info.zalloc=AcquireZIPMemory; |
| zip_info.zfree=RelinquishZIPMemory; |
| zip_info.opaque = (voidpf) NULL; |
| zip_status = inflateInit(&zip_info); |
| if (zip_status != Z_OK) |
| { |
| RelinquishMagickMemory(CacheBlock); |
| RelinquishMagickMemory(DecompressBlock); |
| (void) ThrowMagickException(exception,GetMagickModule(),CorruptImageError, |
| "UnableToUncompressImage","`%s'",clone_info->filename); |
| (void) fclose(mat_file); |
| RelinquishUniqueFileResource(clone_info->filename); |
| return NULL; |
| } |
| /* zip_info.next_out = 8*4;*/ |
| |
| zip_info.avail_in = 0; |
| zip_info.total_out = 0; |
| while(Size>0 && !EOFBlob(orig)) |
| { |
| magick_size = ReadBlob(orig, (Size<16384)?Size:16384, (unsigned char *) CacheBlock); |
| zip_info.next_in = (Bytef *) CacheBlock; |
| zip_info.avail_in = (uInt) magick_size; |
| |
| while(zip_info.avail_in>0) |
| { |
| zip_info.avail_out = 4096; |
| zip_info.next_out = (Bytef *) DecompressBlock; |
| zip_status = inflate(&zip_info,Z_NO_FLUSH); |
| if ((zip_status != Z_OK) && (zip_status != Z_STREAM_END)) |
| break; |
| extent=fwrite(DecompressBlock, 4096-zip_info.avail_out, 1, mat_file); |
| (void) extent; |
| |
| if(zip_status == Z_STREAM_END) goto DblBreak; |
| } |
| if ((zip_status != Z_OK) && (zip_status != Z_STREAM_END)) |
| break; |
| |
| Size -= magick_size; |
| } |
| DblBreak: |
| |
| inflateEnd(&zip_info); |
| (void)fclose(mat_file); |
| RelinquishMagickMemory(CacheBlock); |
| RelinquishMagickMemory(DecompressBlock); |
| |
| if((clone_info->file=fopen(clone_info->filename,"rb"))==NULL) goto UnlinkFile; |
| if( (image2 = AcquireImage(clone_info,exception))==NULL ) goto EraseFile; |
| status = OpenBlob(clone_info,image2,ReadBinaryBlobMode,exception); |
| if (status == MagickFalse) |
| { |
| DeleteImageFromList(&image2); |
| EraseFile: |
| fclose(clone_info->file); |
| clone_info->file = NULL; |
| UnlinkFile: |
| RelinquishUniqueFileResource(clone_info->filename); |
| return NULL; |
| } |
| |
| return image2; |
| } |
| #endif |
| |
| static Image *ReadMATImageV4(const ImageInfo *image_info,Image *image, |
| ExceptionInfo *exception) |
| { |
| typedef struct { |
| unsigned char Type[4]; |
| unsigned int nRows; |
| unsigned int nCols; |
| unsigned int imagf; |
| unsigned int nameLen; |
| } MAT4_HDR; |
| |
| long |
| ldblk; |
| |
| EndianType |
| endian; |
| |
| Image |
| *rotate_image; |
| |
| MagickBooleanType |
| status; |
| |
| MAT4_HDR |
| HDR; |
| |
| QuantumInfo |
| *quantum_info; |
| |
| QuantumFormatType |
| format_type; |
| |
| register ssize_t |
| i; |
| |
| ssize_t |
| count, |
| y; |
| |
| unsigned char |
| *pixels; |
| |
| unsigned int |
| depth; |
| |
| (void) SeekBlob(image,0,SEEK_SET); |
| ldblk=ReadBlobLSBLong(image); |
| if ((ldblk > 9999) || (ldblk < 0)) |
| return((Image *) NULL); |
| HDR.Type[3]=ldblk % 10; ldblk /= 10; /* T digit */ |
| HDR.Type[2]=ldblk % 10; ldblk /= 10; /* P digit */ |
| HDR.Type[1]=ldblk % 10; ldblk /= 10; /* O digit */ |
| HDR.Type[0]=ldblk; /* M digit */ |
| if (HDR.Type[3] != 0) return((Image *) NULL); /* Data format */ |
| if (HDR.Type[2] != 0) return((Image *) NULL); /* Always 0 */ |
| if (HDR.Type[0] == 0) |
| { |
| HDR.nRows=ReadBlobLSBLong(image); |
| HDR.nCols=ReadBlobLSBLong(image); |
| HDR.imagf=ReadBlobLSBLong(image); |
| HDR.nameLen=ReadBlobLSBLong(image); |
| endian=LSBEndian; |
| } |
| else |
| { |
| HDR.nRows=ReadBlobMSBLong(image); |
| HDR.nCols=ReadBlobMSBLong(image); |
| HDR.imagf=ReadBlobMSBLong(image); |
| HDR.nameLen=ReadBlobMSBLong(image); |
| endian=MSBEndian; |
| } |
| if (HDR.nameLen > 0xFFFF) |
| return((Image *) NULL); |
| for (i=0; i < (ssize_t) HDR.nameLen; i++) |
| { |
| int |
| byte; |
| |
| /* |
| Skip matrix name. |
| */ |
| byte=ReadBlobByte(image); |
| if (byte == EOF) |
| return((Image *) NULL); |
| } |
| image->columns=(size_t) HDR.nRows; |
| image->rows=(size_t) HDR.nCols; |
| SetImageColorspace(image,GRAYColorspace,exception); |
| if (image_info->ping != MagickFalse) |
| { |
| Swap(image->columns,image->rows); |
| return(image); |
| } |
| status=SetImageExtent(image,image->columns,image->rows,exception); |
| if (status == MagickFalse) |
| return((Image *) NULL); |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| return((Image *) NULL); |
| switch(HDR.Type[1]) |
| { |
| case 0: |
| format_type=FloatingPointQuantumFormat; |
| depth=64; |
| break; |
| case 1: |
| format_type=FloatingPointQuantumFormat; |
| depth=32; |
| break; |
| case 2: |
| format_type=UnsignedQuantumFormat; |
| depth=16; |
| break; |
| case 3: |
| format_type=SignedQuantumFormat; |
| depth=16; |
| case 4: |
| format_type=UnsignedQuantumFormat; |
| depth=8; |
| break; |
| default: |
| format_type=UnsignedQuantumFormat; |
| depth=8; |
| break; |
| } |
| image->depth=depth; |
| if (HDR.Type[0] != 0) |
| SetQuantumEndian(image,quantum_info,MSBEndian); |
| status=SetQuantumFormat(image,quantum_info,format_type); |
| status=SetQuantumDepth(image,quantum_info,depth); |
| status=SetQuantumEndian(image,quantum_info,endian); |
| SetQuantumScale(quantum_info,1.0); |
| pixels=(unsigned char *) GetQuantumPixels(quantum_info); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| int |
| status; |
| |
| register Quantum |
| *magick_restrict q; |
| |
| count=ReadBlob(image,depth/8*image->columns,(char *) pixels); |
| if (count == -1) |
| break; |
| q=QueueAuthenticPixels(image,0,image->rows-y-1,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| GrayQuantum,pixels,exception); |
| if ((HDR.Type[1] == 2) || (HDR.Type[1] == 3)) |
| FixSignedValues(image,q,(int) image->columns); |
| if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| break; |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| } |
| if (HDR.imagf == 1) |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| /* |
| Read complex pixels. |
| */ |
| count=ReadBlob(image,depth/8*image->columns,(char *) pixels); |
| if (count == -1) |
| break; |
| if (HDR.Type[1] == 0) |
| InsertComplexDoubleRow(image,(double *) pixels,y,0,0,exception); |
| else |
| InsertComplexFloatRow(image,(float *) pixels,y,0,0,exception); |
| } |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| rotate_image=RotateImage(image,90.0,exception); |
| if (rotate_image != (Image *) NULL) |
| { |
| image=DestroyImage(image); |
| image=rotate_image; |
| } |
| return(image); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e a d M A T L A B i m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % ReadMATImage() reads an MAT X image file and returns it. It |
| % allocates the memory necessary for the new Image structure and returns a |
| % pointer to the new image. |
| % |
| % The format of the ReadMATImage method is: |
| % |
| % Image *ReadMATImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o image: Method ReadMATImage returns a pointer to the image after |
| % reading. A null image is returned if there is a memory shortage or if |
| % the image cannot be read. |
| % |
| % o image_info: Specifies a pointer to a ImageInfo structure. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| static Image *ReadMATImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| { |
| Image *image, *image2=NULL, |
| *rotated_image; |
| register Quantum *q; |
| |
| unsigned int status; |
| MATHeader MATLAB_HDR; |
| size_t size; |
| size_t CellType; |
| QuantumInfo *quantum_info; |
| ImageInfo *clone_info; |
| int i; |
| ssize_t ldblk; |
| unsigned char *BImgBuff = NULL; |
| double MinVal, MaxVal; |
| unsigned z, z2; |
| unsigned Frames; |
| int logging; |
| int sample_size; |
| MagickOffsetType filepos=0x80; |
| BlobInfo *blob; |
| size_t one; |
| |
| unsigned int (*ReadBlobXXXLong)(Image *image); |
| unsigned short (*ReadBlobXXXShort)(Image *image); |
| void (*ReadBlobDoublesXXX)(Image * image, size_t len, double *data); |
| void (*ReadBlobFloatsXXX)(Image * image, size_t len, float *data); |
| |
| |
| assert(image_info != (const ImageInfo *) NULL); |
| assert(image_info->signature == MagickCoreSignature); |
| assert(exception != (ExceptionInfo *) NULL); |
| assert(exception->signature == MagickCoreSignature); |
| logging = LogMagickEvent(CoderEvent,GetMagickModule(),"enter"); |
| |
| /* |
| Open image file. |
| */ |
| image = AcquireImage(image_info,exception); |
| |
| status = OpenBlob(image_info, image, ReadBinaryBlobMode, exception); |
| if (status == MagickFalse) |
| { |
| image=DestroyImageList(image); |
| return((Image *) NULL); |
| } |
| /* |
| Read MATLAB image. |
| */ |
| clone_info=CloneImageInfo(image_info); |
| if (ReadBlob(image,124,(unsigned char *) &MATLAB_HDR.identific) != 124) |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| if (strncmp(MATLAB_HDR.identific,"MATLAB",6) != 0) |
| { |
| image2=ReadMATImageV4(image_info,image,exception); |
| if (image2 == NULL) |
| goto MATLAB_KO; |
| image=image2; |
| goto END_OF_READING; |
| } |
| MATLAB_HDR.Version = ReadBlobLSBShort(image); |
| if(ReadBlob(image,2,(unsigned char *) &MATLAB_HDR.EndianIndicator) != 2) |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| |
| if (logging) |
| (void) LogMagickEvent(CoderEvent,GetMagickModule()," Endian %c%c", |
| MATLAB_HDR.EndianIndicator[0],MATLAB_HDR.EndianIndicator[1]); |
| if (!strncmp(MATLAB_HDR.EndianIndicator, "IM", 2)) |
| { |
| ReadBlobXXXLong = ReadBlobLSBLong; |
| ReadBlobXXXShort = ReadBlobLSBShort; |
| ReadBlobDoublesXXX = ReadBlobDoublesLSB; |
| ReadBlobFloatsXXX = ReadBlobFloatsLSB; |
| image->endian = LSBEndian; |
| } |
| else if (!strncmp(MATLAB_HDR.EndianIndicator, "MI", 2)) |
| { |
| ReadBlobXXXLong = ReadBlobMSBLong; |
| ReadBlobXXXShort = ReadBlobMSBShort; |
| ReadBlobDoublesXXX = ReadBlobDoublesMSB; |
| ReadBlobFloatsXXX = ReadBlobFloatsMSB; |
| image->endian = MSBEndian; |
| } |
| else |
| goto MATLAB_KO; /* unsupported endian */ |
| |
| if (strncmp(MATLAB_HDR.identific, "MATLAB", 6)) |
| MATLAB_KO: ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| |
| filepos = TellBlob(image); |
| while(!EOFBlob(image)) /* object parser loop */ |
| { |
| Frames = 1; |
| (void) SeekBlob(image,filepos,SEEK_SET); |
| /* printf("pos=%X\n",TellBlob(image)); */ |
| |
| MATLAB_HDR.DataType = ReadBlobXXXLong(image); |
| if(EOFBlob(image)) break; |
| MATLAB_HDR.ObjectSize = ReadBlobXXXLong(image); |
| if(EOFBlob(image)) break; |
| filepos += MATLAB_HDR.ObjectSize + 4 + 4; |
| |
| image2 = image; |
| #if defined(MAGICKCORE_ZLIB_DELEGATE) |
| if(MATLAB_HDR.DataType == miCOMPRESSED) |
| { |
| image2 = DecompressBlock(image,MATLAB_HDR.ObjectSize,clone_info,exception); |
| if(image2==NULL) continue; |
| MATLAB_HDR.DataType = ReadBlobXXXLong(image2); /* replace compressed object type. */ |
| } |
| #endif |
| |
| if(MATLAB_HDR.DataType!=miMATRIX) continue; /* skip another objects. */ |
| |
| MATLAB_HDR.unknown1 = ReadBlobXXXLong(image2); |
| MATLAB_HDR.unknown2 = ReadBlobXXXLong(image2); |
| |
| MATLAB_HDR.unknown5 = ReadBlobXXXLong(image2); |
| MATLAB_HDR.StructureClass = MATLAB_HDR.unknown5 & 0xFF; |
| MATLAB_HDR.StructureFlag = (MATLAB_HDR.unknown5>>8) & 0xFF; |
| |
| MATLAB_HDR.unknown3 = ReadBlobXXXLong(image2); |
| if(image!=image2) |
| MATLAB_HDR.unknown4 = ReadBlobXXXLong(image2); /* ??? don't understand why ?? */ |
| MATLAB_HDR.unknown4 = ReadBlobXXXLong(image2); |
| MATLAB_HDR.DimFlag = ReadBlobXXXLong(image2); |
| MATLAB_HDR.SizeX = ReadBlobXXXLong(image2); |
| MATLAB_HDR.SizeY = ReadBlobXXXLong(image2); |
| |
| |
| switch(MATLAB_HDR.DimFlag) |
| { |
| case 8: z2=z=1; break; /* 2D matrix*/ |
| case 12: z2=z = ReadBlobXXXLong(image2); /* 3D matrix RGB*/ |
| (void) ReadBlobXXXLong(image2); |
| if(z!=3) ThrowReaderException(CoderError, "MultidimensionalMatricesAreNotSupported"); |
| break; |
| case 16: z2=z = ReadBlobXXXLong(image2); /* 4D matrix animation */ |
| if(z!=3 && z!=1) |
| ThrowReaderException(CoderError, "MultidimensionalMatricesAreNotSupported"); |
| Frames = ReadBlobXXXLong(image2); |
| if (Frames == 0) |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| break; |
| default: ThrowReaderException(CoderError, "MultidimensionalMatricesAreNotSupported"); |
| } |
| |
| MATLAB_HDR.Flag1 = ReadBlobXXXShort(image2); |
| MATLAB_HDR.NameFlag = ReadBlobXXXShort(image2); |
| |
| if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
| "MATLAB_HDR.StructureClass %d",MATLAB_HDR.StructureClass); |
| if (MATLAB_HDR.StructureClass != mxCHAR_CLASS && |
| MATLAB_HDR.StructureClass != mxSINGLE_CLASS && /* float + complex float */ |
| MATLAB_HDR.StructureClass != mxDOUBLE_CLASS && /* double + complex double */ |
| MATLAB_HDR.StructureClass != mxINT8_CLASS && |
| MATLAB_HDR.StructureClass != mxUINT8_CLASS && /* uint8 + uint8 3D */ |
| MATLAB_HDR.StructureClass != mxINT16_CLASS && |
| MATLAB_HDR.StructureClass != mxUINT16_CLASS && /* uint16 + uint16 3D */ |
| MATLAB_HDR.StructureClass != mxINT32_CLASS && |
| MATLAB_HDR.StructureClass != mxUINT32_CLASS && /* uint32 + uint32 3D */ |
| MATLAB_HDR.StructureClass != mxINT64_CLASS && |
| MATLAB_HDR.StructureClass != mxUINT64_CLASS) /* uint64 + uint64 3D */ |
| ThrowReaderException(CoderError,"UnsupportedCellTypeInTheMatrix"); |
| |
| switch (MATLAB_HDR.NameFlag) |
| { |
| case 0: |
| size = ReadBlobXXXLong(image2); /* Object name string size */ |
| size = 4 * (ssize_t) ((size + 3 + 1) / 4); |
| (void) SeekBlob(image2, size, SEEK_CUR); |
| break; |
| case 1: |
| case 2: |
| case 3: |
| case 4: |
| (void) ReadBlob(image2, 4, (unsigned char *) &size); /* Object name string */ |
| break; |
| default: |
| goto MATLAB_KO; |
| } |
| |
| CellType = ReadBlobXXXLong(image2); /* Additional object type */ |
| if (logging) |
| (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
| "MATLAB_HDR.CellType: %.20g",(double) CellType); |
| |
| (void) ReadBlob(image2, 4, (unsigned char *) &size); /* data size */ |
| |
| NEXT_FRAME: |
| switch (CellType) |
| { |
| case miINT8: |
| case miUINT8: |
| sample_size = 8; |
| if(MATLAB_HDR.StructureFlag & FLAG_LOGICAL) |
| image->depth = 1; |
| else |
| image->depth = 8; /* Byte type cell */ |
| ldblk = (ssize_t) MATLAB_HDR.SizeX; |
| break; |
| case miINT16: |
| case miUINT16: |
| sample_size = 16; |
| image->depth = 16; /* Word type cell */ |
| ldblk = (ssize_t) (2 * MATLAB_HDR.SizeX); |
| break; |
| case miINT32: |
| case miUINT32: |
| sample_size = 32; |
| image->depth = 32; /* Dword type cell */ |
| ldblk = (ssize_t) (4 * MATLAB_HDR.SizeX); |
| break; |
| case miINT64: |
| case miUINT64: |
| sample_size = 64; |
| image->depth = 64; /* Qword type cell */ |
| ldblk = (ssize_t) (8 * MATLAB_HDR.SizeX); |
| break; |
| case miSINGLE: |
| sample_size = 32; |
| image->depth = 32; /* double type cell */ |
| (void) SetImageOption(clone_info,"quantum:format","floating-point"); |
| if (MATLAB_HDR.StructureFlag & FLAG_COMPLEX) |
| { /* complex float type cell */ |
| } |
| ldblk = (ssize_t) (4 * MATLAB_HDR.SizeX); |
| break; |
| case miDOUBLE: |
| sample_size = 64; |
| image->depth = 64; /* double type cell */ |
| (void) SetImageOption(clone_info,"quantum:format","floating-point"); |
| DisableMSCWarning(4127) |
| if (sizeof(double) != 8) |
| RestoreMSCWarning |
| ThrowReaderException(CoderError, "IncompatibleSizeOfDouble"); |
| if (MATLAB_HDR.StructureFlag & FLAG_COMPLEX) |
| { /* complex double type cell */ |
| } |
| ldblk = (ssize_t) (8 * MATLAB_HDR.SizeX); |
| break; |
| default: |
| ThrowReaderException(CoderError, "UnsupportedCellTypeInTheMatrix"); |
| } |
| (void) sample_size; |
| image->columns = MATLAB_HDR.SizeX; |
| image->rows = MATLAB_HDR.SizeY; |
| quantum_info=AcquireQuantumInfo(clone_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| one=1; |
| image->colors = one << image->depth; |
| if (image->columns == 0 || image->rows == 0) |
| goto MATLAB_KO; |
| /* Image is gray when no complex flag is set and 2D Matrix */ |
| if ((MATLAB_HDR.DimFlag == 8) && |
| ((MATLAB_HDR.StructureFlag & FLAG_COMPLEX) == 0)) |
| { |
| image->type=GrayscaleType; |
| SetImageColorspace(image,GRAYColorspace,exception); |
| } |
| |
| |
| /* |
| If ping is true, then only set image size and colors without |
| reading any image data. |
| */ |
| if (image_info->ping) |
| { |
| size_t temp = image->columns; |
| image->columns = image->rows; |
| image->rows = temp; |
| goto done_reading; /* !!!!!! BAD !!!! */ |
| } |
| status=SetImageExtent(image,image->columns,image->rows,exception); |
| if (status == MagickFalse) |
| return(DestroyImageList(image)); |
| |
| /* ----- Load raster data ----- */ |
| BImgBuff = (unsigned char *) AcquireQuantumMemory((size_t) (ldblk),sizeof(double)); /* Ldblk was set in the check phase */ |
| if (BImgBuff == NULL) |
| ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); |
| |
| MinVal = 0; |
| MaxVal = 0; |
| if (CellType==miDOUBLE || CellType==miSINGLE) /* Find Min and Max Values for floats */ |
| { |
| CalcMinMax(image2, image_info->endian, MATLAB_HDR.SizeX, MATLAB_HDR.SizeY, CellType, ldblk, BImgBuff, &quantum_info->minimum, &quantum_info->maximum); |
| } |
| |
| /* Main loop for reading all scanlines */ |
| if(z==1) z=0; /* read grey scanlines */ |
| /* else read color scanlines */ |
| do |
| { |
| for (i = 0; i < (ssize_t) MATLAB_HDR.SizeY; i++) |
| { |
| q=GetAuthenticPixels(image,0,MATLAB_HDR.SizeY-i-1,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| { |
| if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
| " MAT set image pixels returns unexpected NULL on a row %u.", (unsigned)(MATLAB_HDR.SizeY-i-1)); |
| goto done_reading; /* Skip image rotation, when cannot set image pixels */ |
| } |
| if(ReadBlob(image2,ldblk,(unsigned char *)BImgBuff) != (ssize_t) ldblk) |
| { |
| if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
| " MAT cannot read scanrow %u from a file.", (unsigned)(MATLAB_HDR.SizeY-i-1)); |
| goto ExitLoop; |
| } |
| if((CellType==miINT8 || CellType==miUINT8) && (MATLAB_HDR.StructureFlag & FLAG_LOGICAL)) |
| { |
| FixLogical((unsigned char *)BImgBuff,ldblk); |
| if(ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,z2qtype[z],BImgBuff,exception) <= 0) |
| { |
| ImportQuantumPixelsFailed: |
| if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
| " MAT failed to ImportQuantumPixels for a row %u", (unsigned)(MATLAB_HDR.SizeY-i-1)); |
| break; |
| } |
| } |
| else |
| { |
| if(ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,z2qtype[z],BImgBuff,exception) <= 0) |
| goto ImportQuantumPixelsFailed; |
| |
| |
| if (z<=1 && /* fix only during a last pass z==0 || z==1 */ |
| (CellType==miINT8 || CellType==miINT16 || CellType==miINT32 || CellType==miINT64)) |
| FixSignedValues(image,q,MATLAB_HDR.SizeX); |
| } |
| |
| if (!SyncAuthenticPixels(image,exception)) |
| { |
| if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(), |
| " MAT failed to sync image pixels for a row %u", (unsigned)(MATLAB_HDR.SizeY-i-1)); |
| goto ExitLoop; |
| } |
| } |
| } while(z-- >= 2); |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| ExitLoop: |
| |
| |
| /* Read complex part of numbers here */ |
| if (MATLAB_HDR.StructureFlag & FLAG_COMPLEX) |
| { /* Find Min and Max Values for complex parts of floats */ |
| CellType = ReadBlobXXXLong(image2); /* Additional object type */ |
| i = ReadBlobXXXLong(image2); /* size of a complex part - toss away*/ |
| |
| if (CellType==miDOUBLE || CellType==miSINGLE) |
| { |
| CalcMinMax(image2, image_info->endian, MATLAB_HDR.SizeX, MATLAB_HDR.SizeY, CellType, ldblk, BImgBuff, &MinVal, &MaxVal); |
| } |
| |
| if (CellType==miDOUBLE) |
| for (i = 0; i < (ssize_t) MATLAB_HDR.SizeY; i++) |
| { |
| ReadBlobDoublesXXX(image2, ldblk, (double *)BImgBuff); |
| InsertComplexDoubleRow(image, (double *)BImgBuff, i, MinVal, MaxVal, |
| exception); |
| } |
| |
| if (CellType==miSINGLE) |
| for (i = 0; i < (ssize_t) MATLAB_HDR.SizeY; i++) |
| { |
| ReadBlobFloatsXXX(image2, ldblk, (float *)BImgBuff); |
| InsertComplexFloatRow(image,(float *)BImgBuff,i,MinVal,MaxVal, |
| exception); |
| } |
| } |
| |
| /* Image is gray when no complex flag is set and 2D Matrix AGAIN!!! */ |
| if ((MATLAB_HDR.DimFlag == 8) && |
| ((MATLAB_HDR.StructureFlag & FLAG_COMPLEX) == 0)) |
| image->type=GrayscaleType; |
| if (image->depth == 1) |
| image->type=BilevelType; |
| |
| if(image2==image) |
| image2 = NULL; /* Remove shadow copy to an image before rotation. */ |
| |
| /* Rotate image. */ |
| rotated_image = RotateImage(image, 90.0, exception); |
| if (rotated_image != (Image *) NULL) |
| { |
| /* Remove page offsets added by RotateImage */ |
| rotated_image->page.x=0; |
| rotated_image->page.y=0; |
| |
| blob = rotated_image->blob; |
| rotated_image->blob = image->blob; |
| rotated_image->colors = image->colors; |
| image->blob = blob; |
| AppendImageToList(&image,rotated_image); |
| DeleteImageFromList(&image); |
| } |
| |
| done_reading: |
| |
| if(image2!=NULL) |
| if(image2!=image) |
| { |
| DeleteImageFromList(&image2); |
| if(clone_info) |
| { |
| if(clone_info->file) |
| { |
| fclose(clone_info->file); |
| clone_info->file = NULL; |
| (void) remove_utf8(clone_info->filename); |
| } |
| } |
| } |
| |
| /* Allocate next image structure. */ |
| AcquireNextImage(image_info,image,exception); |
| if (image->next == (Image *) NULL) break; |
| image=SyncNextImageInList(image); |
| image->columns=image->rows=0; |
| image->colors=0; |
| |
| /* row scan buffer is no longer needed */ |
| RelinquishMagickMemory(BImgBuff); |
| BImgBuff = NULL; |
| |
| if(--Frames>0) |
| { |
| z = z2; |
| if(image2==NULL) image2 = image; |
| goto NEXT_FRAME; |
| } |
| if ((image2!=NULL) && (image2!=image)) /* Does shadow temporary decompressed image exist? */ |
| { |
| /* CloseBlob(image2); */ |
| DeleteImageFromList(&image2); |
| if(clone_info) |
| { |
| if(clone_info->file) |
| { |
| fclose(clone_info->file); |
| clone_info->file = NULL; |
| (void) remove_utf8(clone_info->filename); |
| } |
| } |
| } |
| } |
| |
| RelinquishMagickMemory(BImgBuff); |
| END_OF_READING: |
| clone_info=DestroyImageInfo(clone_info); |
| CloseBlob(image); |
| |
| |
| { |
| Image *p; |
| ssize_t scene=0; |
| |
| /* |
| Rewind list, removing any empty images while rewinding. |
| */ |
| p=image; |
| image=NULL; |
| while (p != (Image *) NULL) |
| { |
| Image *tmp=p; |
| if ((p->rows == 0) || (p->columns == 0)) { |
| p=p->previous; |
| DeleteImageFromList(&tmp); |
| } else { |
| image=p; |
| p=p->previous; |
| } |
| } |
| |
| /* |
| Fix scene numbers |
| */ |
| for (p=image; p != (Image *) NULL; p=p->next) |
| p->scene=scene++; |
| } |
| |
| if(clone_info != NULL) /* cleanup garbage file from compression */ |
| { |
| if(clone_info->file) |
| { |
| fclose(clone_info->file); |
| clone_info->file = NULL; |
| (void) remove_utf8(clone_info->filename); |
| } |
| DestroyImageInfo(clone_info); |
| clone_info = NULL; |
| } |
| if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(),"return"); |
| if(image==NULL) |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| return (image); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e g i s t e r M A T I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % Method RegisterMATImage adds attributes for the MAT image format to |
| % the list of supported formats. The attributes include the image format |
| % tag, a method to read and/or write the format, whether the format |
| % supports the saving of more than one frame to the same file or blob, |
| % whether the format supports native in-memory I/O, and a brief |
| % description of the format. |
| % |
| % The format of the RegisterMATImage method is: |
| % |
| % size_t RegisterMATImage(void) |
| % |
| */ |
| ModuleExport size_t RegisterMATImage(void) |
| { |
| MagickInfo |
| *entry; |
| |
| entry=AcquireMagickInfo("MAT","MAT","MATLAB level 5 image format"); |
| entry->decoder=(DecodeImageHandler *) ReadMATImage; |
| entry->encoder=(EncodeImageHandler *) WriteMATImage; |
| entry->flags^=CoderBlobSupportFlag; |
| entry->flags|=CoderSeekableStreamFlag; |
| (void) RegisterMagickInfo(entry); |
| return(MagickImageCoderSignature); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % U n r e g i s t e r M A T I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % Method UnregisterMATImage removes format registrations made by the |
| % MAT module from the list of supported formats. |
| % |
| % The format of the UnregisterMATImage method is: |
| % |
| % UnregisterMATImage(void) |
| % |
| */ |
| ModuleExport void UnregisterMATImage(void) |
| { |
| (void) UnregisterMagickInfo("MAT"); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % W r i t e M A T L A B I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % Function WriteMATImage writes an Matlab matrix to a file. |
| % |
| % The format of the WriteMATImage method is: |
| % |
| % MagickBooleanType WriteMATImage(const ImageInfo *image_info, |
| % Image *image,ExceptionInfo *exception) |
| % |
| % A description of each parameter follows. |
| % |
| % o image_info: Specifies a pointer to a ImageInfo structure. |
| % |
| % o image: A pointer to an Image structure. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| static MagickBooleanType WriteMATImage(const ImageInfo *image_info,Image *image, |
| ExceptionInfo *exception) |
| { |
| ssize_t y; |
| unsigned z; |
| register const Quantum *p; |
| |
| unsigned int status; |
| int logging; |
| size_t DataSize; |
| char padding; |
| char MATLAB_HDR[0x80]; |
| time_t current_time; |
| struct tm local_time; |
| unsigned char *pixels; |
| int is_gray; |
| |
| MagickOffsetType |
| scene; |
| |
| QuantumInfo |
| *quantum_info; |
| |
| /* |
| Open output image file. |
| */ |
| assert(image_info != (const ImageInfo *) NULL); |
| assert(image_info->signature == MagickCoreSignature); |
| assert(image != (Image *) NULL); |
| assert(image->signature == MagickCoreSignature); |
| logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter MAT"); |
| (void) logging; |
| assert(exception != (ExceptionInfo *) NULL); |
| assert(exception->signature == MagickCoreSignature); |
| status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); |
| if (status == MagickFalse) |
| return(MagickFalse); |
| image->depth=8; |
| |
| current_time=time((time_t *) NULL); |
| #if defined(MAGICKCORE_HAVE_LOCALTIME_R) |
| (void) localtime_r(¤t_time,&local_time); |
| #else |
| (void) memcpy(&local_time,localtime(¤t_time),sizeof(local_time)); |
| #endif |
| (void) memset(MATLAB_HDR,' ',MagickMin(sizeof(MATLAB_HDR),124)); |
| FormatLocaleString(MATLAB_HDR,sizeof(MATLAB_HDR), |
| "MATLAB 5.0 MAT-file, Platform: %s, Created on: %s %s %2d %2d:%2d:%2d %d", |
| OsDesc,DayOfWTab[local_time.tm_wday],MonthsTab[local_time.tm_mon], |
| local_time.tm_mday,local_time.tm_hour,local_time.tm_min, |
| local_time.tm_sec,local_time.tm_year+1900); |
| MATLAB_HDR[0x7C]=0; |
| MATLAB_HDR[0x7D]=1; |
| MATLAB_HDR[0x7E]='I'; |
| MATLAB_HDR[0x7F]='M'; |
| (void) WriteBlob(image,sizeof(MATLAB_HDR),(unsigned char *) MATLAB_HDR); |
| scene=0; |
| do |
| { |
| (void) TransformImageColorspace(image,sRGBColorspace,exception); |
| is_gray = SetImageGray(image,exception); |
| z = is_gray ? 0 : 3; |
| |
| /* |
| Store MAT header. |
| */ |
| DataSize = image->rows /*Y*/ * image->columns /*X*/; |
| if(!is_gray) DataSize *= 3 /*Z*/; |
| padding=((unsigned char)(DataSize-1) & 0x7) ^ 0x7; |
| |
| (void) WriteBlobLSBLong(image, miMATRIX); |
| (void) WriteBlobLSBLong(image, (unsigned int) DataSize+padding+(is_gray ? 48 : 56)); |
| (void) WriteBlobLSBLong(image, 0x6); /* 0x88 */ |
| (void) WriteBlobLSBLong(image, 0x8); /* 0x8C */ |
| (void) WriteBlobLSBLong(image, 0x6); /* 0x90 */ |
| (void) WriteBlobLSBLong(image, 0); |
| (void) WriteBlobLSBLong(image, 0x5); /* 0x98 */ |
| (void) WriteBlobLSBLong(image, is_gray ? 0x8 : 0xC); /* 0x9C - DimFlag */ |
| (void) WriteBlobLSBLong(image, (unsigned int) image->rows); /* x: 0xA0 */ |
| (void) WriteBlobLSBLong(image, (unsigned int) image->columns); /* y: 0xA4 */ |
| if(!is_gray) |
| { |
| (void) WriteBlobLSBLong(image, 3); /* z: 0xA8 */ |
| (void) WriteBlobLSBLong(image, 0); |
| } |
| (void) WriteBlobLSBShort(image, 1); /* 0xB0 */ |
| (void) WriteBlobLSBShort(image, 1); /* 0xB2 */ |
| (void) WriteBlobLSBLong(image, 'M'); /* 0xB4 */ |
| (void) WriteBlobLSBLong(image, 0x2); /* 0xB8 */ |
| (void) WriteBlobLSBLong(image, (unsigned int) DataSize); /* 0xBC */ |
| |
| /* |
| Store image data. |
| */ |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| pixels=(unsigned char *) GetQuantumPixels(quantum_info); |
| do |
| { |
| for (y=0; y < (ssize_t)image->columns; y++) |
| { |
| p=GetVirtualPixels(image,y,0,1,image->rows,exception); |
| if (p == (const Quantum *) NULL) |
| break; |
| (void) ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| z2qtype[z],pixels,exception); |
| (void) WriteBlob(image,image->rows,pixels); |
| } |
| if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| break; |
| } while(z-- >= 2); |
| while(padding-->0) (void) WriteBlobByte(image,0); |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| if (GetNextImageInList(image) == (Image *) NULL) |
| break; |
| image=SyncNextImageInList(image); |
| status=SetImageProgress(image,SaveImagesTag,scene++, |
| GetImageListLength(image)); |
| if (status == MagickFalse) |
| break; |
| } while (image_info->adjoin != MagickFalse); |
| (void) CloseBlob(image); |
| return(MagickTrue); |
| } |