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ImageMagick-mat.c-update.patch
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File ImageMagick-mat.c-update.patch of Package ImageMagick.8370
update of mat.c to 6.9.9-31's version Index: ImageMagick-6.8.8-1/coders/mat.c =================================================================== --- ImageMagick-6.8.8-1.orig/coders/mat.c 2018-01-15 14:05:54.715365631 +0100 +++ ImageMagick-6.8.8-1/coders/mat.c 2018-01-19 22:22:58.882937177 +0100 @@ -48,6 +48,7 @@ Include declarations. */ #include "magick/studio.h" +#include "magick/attribute.h" #include "magick/blob.h" #include "magick/blob-private.h" #include "magick/cache.h" @@ -97,7 +98,7 @@ typedef struct unsigned short Version; char EndianIndicator[2]; unsigned long DataType; - unsigned long ObjectSize; + unsigned int ObjectSize; unsigned long unknown1; unsigned long unknown2; @@ -118,7 +119,7 @@ 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= -#ifdef __WIN32__ +#if defined(MAGICKCORE_WINDOWS_SUPPORT) "PCWIN"; #else #ifdef __APPLE__ @@ -176,7 +177,6 @@ typedef enum static const QuantumType z2qtype[4] = {GrayQuantum, BlueQuantum, GreenQuantum, RedQuantum}; - static void InsertComplexDoubleRow(double *p, int y, Image * image, double MinVal, double MaxVal) { @@ -476,17 +476,20 @@ static void RelinquishZIPMemory(voidpf c #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) +static Image *decompress_block(Image *orig, unsigned int *Size, ImageInfo *clone_info, ExceptionInfo *exception) { Image *image2; -void *CacheBlock, *DecompressBlock; +void *cache_block, *decompress_block; z_stream zip_info; FILE *mat_file; size_t magick_size; size_t extent; +int file; int status; +int zip_status; +ssize_t TotalSize = 0; if(clone_info==NULL) return NULL; if(clone_info->file) /* Close file opened from previous transaction. */ @@ -496,56 +499,76 @@ int status; (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) + cache_block = AcquireQuantumMemory((size_t)(*Size< 16384) ? *Size: 16384,sizeof(unsigned char *)); + if(cache_block==NULL) return NULL; + decompress_block = AcquireQuantumMemory((size_t)(4096),sizeof(unsigned char *)); + if(decompress_block==NULL) { - RelinquishMagickMemory(CacheBlock); + RelinquishMagickMemory(cache_block); return NULL; } - mat_file = fdopen(AcquireUniqueFileResource(clone_info->filename),"w"); + 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(),"Gannot create file stream for PS image"); + RelinquishMagickMemory(cache_block); + RelinquishMagickMemory(decompress_block); + (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; - inflateInit(&zip_info); + zip_status = inflateInit(&zip_info); + if (zip_status != Z_OK) + { + RelinquishMagickMemory(cache_block); + RelinquishMagickMemory(decompress_block); + (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)) + while(*Size>0 && !EOFBlob(orig)) { - magick_size = ReadBlob(orig, (Size<16384)?Size:16384, (unsigned char *) CacheBlock); - zip_info.next_in = (Bytef *) CacheBlock; + magick_size = ReadBlob(orig, (*Size < 16384) ? *Size : 16384, (unsigned char *) cache_block); + zip_info.next_in = (Bytef *) cache_block; zip_info.avail_in = (uInt) magick_size; while(zip_info.avail_in>0) { zip_info.avail_out = 4096; - zip_info.next_out = (Bytef *) DecompressBlock; - status = inflate(&zip_info,Z_NO_FLUSH); - extent=fwrite(DecompressBlock, 4096-zip_info.avail_out, 1, mat_file); + zip_info.next_out = (Bytef *) decompress_block; + zip_status = inflate(&zip_info,Z_NO_FLUSH); + if ((zip_status != Z_OK) && (zip_status != Z_STREAM_END)) + break; + extent=fwrite(decompress_block, 4096-zip_info.avail_out, 1, mat_file); (void) extent; + TotalSize += 4096-zip_info.avail_out; - if(status == Z_STREAM_END) goto DblBreak; + if(zip_status == Z_STREAM_END) goto DblBreak; } + if ((zip_status != Z_OK) && (zip_status != Z_STREAM_END)) + break; - Size -= magick_size; + *Size -= magick_size; } DblBreak: + inflateEnd(&zip_info); (void)fclose(mat_file); - RelinquishMagickMemory(CacheBlock); - RelinquishMagickMemory(DecompressBlock); + RelinquishMagickMemory(cache_block); + RelinquishMagickMemory(decompress_block); + *Size = TotalSize; if((clone_info->file=fopen(clone_info->filename,"rb"))==NULL) goto UnlinkFile; if( (image2 = AcquireImage(clone_info))==NULL ) goto EraseFile; @@ -557,13 +580,243 @@ EraseFile: fclose(clone_info->file); clone_info->file = NULL; UnlinkFile: - (void) remove_utf8(clone_info->filename); + 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); + while (EOFBlob(image) == MagickFalse) + { + /* + Object parser. + */ + ldblk=ReadBlobLSBLong(image); + if (EOFBlob(image) != MagickFalse) + break; + if ((ldblk > 9999) || (ldblk < 0)) + break; + 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) + break; /* Data format */ + if (HDR.Type[2] != 0) + break; /* 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.imagf !=0) && (HDR.imagf !=1)) + break; + if (HDR.nameLen > 0xFFFF) + break; + for (i=0; i < (ssize_t) HDR.nameLen; i++) + { + int + byte; + + /* + Skip matrix name. + */ + byte=ReadBlobByte(image); + if (byte == EOF) + { + ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", + image->filename); + break; + } + } + image->columns=(size_t) HDR.nRows; + image->rows=(size_t) HDR.nCols; + SetImageColorspace(image,GRAYColorspace); + if (image_info->ping != MagickFalse) + { + Swap(image->columns,image->rows); + if(HDR.imagf==1) ldblk *= 2; + SeekBlob(image, HDR.nCols*ldblk, SEEK_CUR); + goto skip_reading_current; + } + status=SetImageExtent(image,image->columns,image->rows); + 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; + break; + 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++) + { + register PixelPacket + *restrict q; + + count=ReadBlob(image,depth/8*image->columns,(unsigned char *) pixels); + if (count == -1) + break; + q=QueueAuthenticPixels(image,0,image->rows-y-1,image->columns,1, + exception); + if (q == (PixelPacket *) NULL) + break; + (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, + GrayQuantum,pixels,exception); + if ((HDR.Type[1] == 2) || (HDR.Type[1] == 3)) + FixSignedValues(q,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,(unsigned char *) pixels); + if (count == -1) + break; + if (HDR.Type[1] == 0) + InsertComplexDoubleRow((double *) pixels,y,image,0,0); + else + InsertComplexFloatRow((float *) pixels,y,image,0,0); + } + quantum_info=DestroyQuantumInfo(quantum_info); + rotate_image=RotateImage(image,90.0,exception); + if (rotate_image != (Image *) NULL) + { + image=DestroyImage(image); + image=rotate_image; + } + if (EOFBlob(image) != MagickFalse) + { + ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", + image->filename); + break; + } + /* + Proceed to next image. + */ + if (image_info->number_scenes != 0) + if (image->scene >= (image_info->scene+image_info->number_scenes-1)) + break; + /* + Allocate next image structure. + */ +skip_reading_current: + AcquireNextImage(image_info,image); + if (GetNextImageInList(image) == (Image *) NULL) + { + image=DestroyImageList(image); + return((Image *) NULL); + } + image=SyncNextImageInList(image); + status=SetImageProgress(image,LoadImagesTag,TellBlob(image), + GetBlobSize(image)); + if (status == MagickFalse) + break; + } + (void) CloseBlob(image); + return(GetFirstImageInList(image)); +} /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -643,7 +896,9 @@ static Image *ReadMATImage(const ImageIn /* Open image file. */ + quantum_info=(QuantumInfo *) NULL; image = AcquireImage(image_info); + image2 = (Image *) NULL; status = OpenBlob(image_info, image, ReadBinaryBlobMode, exception); if (status == MagickFalse) @@ -654,9 +909,17 @@ static Image *ReadMATImage(const ImageIn /* Read MATLAB image. */ - clone_info=CloneImageInfo(image_info); + clone_info=(ImageInfo *) NULL; 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"); @@ -683,7 +946,14 @@ static Image *ReadMATImage(const ImageIn goto MATLAB_KO; /* unsupported endian */ if (strncmp(MATLAB_HDR.identific, "MATLAB", 6)) -MATLAB_KO: ThrowReaderException(CorruptImageError,"ImproperImageHeader"); + { +MATLAB_KO: + if ((image != image2) && (image2 != (Image *) NULL)) + image2=DestroyImage(image2); + if (clone_info != (ImageInfo *) NULL) + clone_info=DestroyImageInfo(clone_info); + ThrowReaderException(CorruptImageError,"ImproperImageHeader"); + } filepos = TellBlob(image); while(!EOFBlob(image)) /* object parser loop */ @@ -696,19 +966,30 @@ MATLAB_KO: ThrowReaderException(CorruptI if(EOFBlob(image)) break; MATLAB_HDR.ObjectSize = ReadBlobXXXLong(image); if(EOFBlob(image)) break; + if((MagickSizeType) (MATLAB_HDR.ObjectSize+filepos) > GetBlobSize(image)) + goto MATLAB_KO; filepos += MATLAB_HDR.ObjectSize + 4 + 4; + if (clone_info != (ImageInfo *) NULL) + clone_info=DestroyImageInfo(clone_info); + clone_info=CloneImageInfo(image_info); + if ((image != image2) && (image2 != (Image *) NULL)) + image2=DestroyImage(image2); image2 = image; #if defined(MAGICKCORE_ZLIB_DELEGATE) if(MATLAB_HDR.DataType == miCOMPRESSED) { - image2 = DecompressBlock(image,MATLAB_HDR.ObjectSize,clone_info,exception); + image2 = decompress_block(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. */ + if (MATLAB_HDR.DataType!=miMATRIX) + { + clone_info=DestroyImageInfo(clone_info); + continue; /* skip another objects. */ + } MATLAB_HDR.unknown1 = ReadBlobXXXLong(image2); MATLAB_HDR.unknown2 = ReadBlobXXXLong(image2); @@ -732,16 +1013,42 @@ MATLAB_KO: ThrowReaderException(CorruptI case 12: z2=z = ReadBlobXXXLong(image2); /* 3D matrix RGB*/ Unknown6 = ReadBlobXXXLong(image2); (void) Unknown6; - if(z!=3) ThrowReaderException(CoderError, "MultidimensionalMatricesAreNotSupported"); + if(z!=3) + { + if (clone_info != (ImageInfo *) NULL) + clone_info=DestroyImageInfo(clone_info); + if ((image != image2) && (image2 != (Image *) NULL)) + image2=DestroyImage(image2); + 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 (clone_info != (ImageInfo *) NULL) + clone_info=DestroyImageInfo(clone_info); + if ((image != image2) && (image2 != (Image *) NULL)) + image2=DestroyImage(image2); + ThrowReaderException(CoderError, + "MultidimensionalMatricesAreNotSupported"); + } + Frames = ReadBlobXXXLong(image2); if (Frames == 0) - ThrowReaderException(CorruptImageError,"ImproperImageHeader"); + { + if (clone_info != (ImageInfo *) NULL) + clone_info=DestroyImageInfo(clone_info); + if ((image != image2) && (image2 != (Image *) NULL)) + image2=DestroyImage(image2); + ThrowReaderException(CorruptImageError,"ImproperImageHeader"); + } break; - default: ThrowReaderException(CoderError, "MultidimensionalMatricesAreNotSupported"); + default: + if (clone_info != (ImageInfo *) NULL) + clone_info=DestroyImageInfo(clone_info); + if ((image != image2) && (image2 != (Image *) NULL)) + image2=DestroyImage(image2); + ThrowReaderException(CoderError, "MultidimensionalMatricesAreNotSupported"); } MATLAB_HDR.Flag1 = ReadBlobXXXShort(image2); @@ -760,7 +1067,16 @@ MATLAB_KO: ThrowReaderException(CorruptI MATLAB_HDR.StructureClass != mxUINT32_CLASS && /* uint32 + uint32 3D */ MATLAB_HDR.StructureClass != mxINT64_CLASS && MATLAB_HDR.StructureClass != mxUINT64_CLASS) /* uint64 + uint64 3D */ - ThrowReaderException(CoderError,"UnsupportedCellTypeInTheMatrix"); + { + if ((image2 != (Image*) NULL) && (image2 != (Image *) image)) + { + CloseBlob(image2); + DeleteImageFromList(&image2); + } + if (clone_info != (ImageInfo *) NULL) + DestroyImageInfo(clone_info); + ThrowReaderException(CoderError,"UnsupportedCellTypeInTheMatrix"); + } switch (MATLAB_HDR.NameFlag) { @@ -839,18 +1155,21 @@ RestoreMSCWarning ldblk = (ssize_t) (8 * MATLAB_HDR.SizeX); break; default: + if ((image != image2) && (image2 != (Image *) NULL)) + image2=DestroyImage(image2); + if (clone_info) + clone_info=DestroyImageInfo(clone_info); 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; + if((unsigned long)ldblk*MATLAB_HDR.SizeY > MATLAB_HDR.ObjectSize) + 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)) @@ -871,6 +1190,17 @@ RestoreMSCWarning image->rows = temp; goto done_reading; /* !!!!!! BAD !!!! */ } + status=SetImageExtent(image,image->columns,image->rows); + if (status == MagickFalse) + { + if ((image != image2) && (image2 != (Image *) NULL)) + image2=DestroyImage(image2); + InheritException(exception,&image->exception); + return(DestroyImageList(image)); + } + quantum_info=AcquireQuantumInfo(clone_info,image); + if (quantum_info == (QuantumInfo *) NULL) + ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); /* ----- Load raster data ----- */ BImgBuff = (unsigned char *) AcquireQuantumMemory((size_t) (ldblk),sizeof(double)); /* Ldblk was set in the check phase */ @@ -893,7 +1223,7 @@ RestoreMSCWarning 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 == (PixelPacket *)NULL) + if (q == (PixelPacket *) NULL) { if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(), " MAT set image pixels returns unexpected NULL on a row %u.", (unsigned)(MATLAB_HDR.SizeY-i-1)); @@ -1017,6 +1347,8 @@ done_reading: /* row scan buffer is no longer needed */ RelinquishMagickMemory(BImgBuff); BImgBuff = NULL; + if (quantum_info != (QuantumInfo *) NULL) + quantum_info=DestroyQuantumInfo(quantum_info); if(--Frames>0) { @@ -1040,11 +1372,14 @@ done_reading: } } } + if (clone_info) + clone_info=DestroyImageInfo(clone_info); } - clone_info=DestroyImageInfo(clone_info); RelinquishMagickMemory(BImgBuff); - quantum_info=DestroyQuantumInfo(quantum_info); + if (quantum_info != (QuantumInfo *) NULL) + quantum_info=DestroyQuantumInfo(quantum_info); +END_OF_READING: CloseBlob(image); @@ -1057,11 +1392,13 @@ done_reading: */ p=image; image=NULL; - while (p != (Image *)NULL) + while (p != (Image *) NULL) { Image *tmp=p; if ((p->rows == 0) || (p->columns == 0)) { p=p->previous; + if (tmp == image2) + image2=(Image *) NULL; DeleteImageFromList(&tmp); } else { image=p; @@ -1088,9 +1425,11 @@ done_reading: clone_info = NULL; } if (logging) (void)LogMagickEvent(CoderEvent,GetMagickModule(),"return"); - if(image==NULL) - ThrowReaderException(CorruptImageError,"ImproperImageHeader"); - return (image); + if ((image != image2) && (image2 != (Image *) NULL)) + image2=DestroyImage(image2); + if (image == (Image *) NULL) + ThrowReaderException(CorruptImageError,"ImproperImageHeader") + return(image); } /* @@ -1186,28 +1525,23 @@ ModuleExport void UnregisterMATImage(voi */ static MagickBooleanType WriteMATImage(const ImageInfo *image_info,Image *image) { + char + MATLAB_HDR[0x80]; + ExceptionInfo *exception; - ssize_t y; - unsigned z; - const PixelPacket *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; + MagickBooleanType + status; MagickOffsetType scene; - QuantumInfo - *quantum_info; + struct tm + local_time; + + time_t + current_time; /* Open output image file. @@ -1216,8 +1550,7 @@ static MagickBooleanType WriteMATImage(c assert(image_info->signature == MagickSignature); assert(image != (Image *) NULL); assert(image->signature == MagickSignature); - logging=LogMagickEvent(CoderEvent,GetMagickModule(),"enter MAT"); - (void) logging; + (void) LogMagickEvent(CoderEvent,GetMagickModule(),"enter MAT"); status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); if (status == MagickFalse) return(MagickFalse); @@ -1230,7 +1563,8 @@ static MagickBooleanType WriteMATImage(c (void) memcpy(&local_time,localtime(¤t_time),sizeof(local_time)); #endif (void) memset(MATLAB_HDR,' ',MagickMin(sizeof(MATLAB_HDR),124)); - FormatLocaleString(MATLAB_HDR,MaxTextExtent,"MATLAB 5.0 MAT-file, Platform: %s, Created on: %s %s %2d %2d:%2d:%2d %d", + 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); @@ -1242,38 +1576,58 @@ static MagickBooleanType WriteMATImage(c scene=0; do { + char + padding; + + MagickBooleanType + is_gray; + + QuantumInfo + *quantum_info; + + size_t + data_size; + + unsigned char + *pixels; + + unsigned int + z; + if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse) (void) TransformImageColorspace(image,sRGBColorspace); - is_gray = IsGrayImage(image,&image->exception); - z = is_gray ? 0 : 3; + is_gray=IsGrayImage(image,&image->exception); + z=(is_gray != MagickFalse) ? 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 */ + data_size=image->rows*image->columns; + if (is_gray == MagickFalse) + data_size*=3; + padding=((unsigned char)(data_size-1) & 0x7) ^ 0x7; + + (void) WriteBlobLSBLong(image,miMATRIX); + (void) WriteBlobLSBLong(image,(unsigned int) data_size+padding+ + ((is_gray != MagickFalse) ? 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 != MagickFalse) ? 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 == MagickFalse) + { + (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) data_size); /* 0xBC */ /* Store image data. @@ -1285,6 +1639,12 @@ static MagickBooleanType WriteMATImage(c pixels=GetQuantumPixels(quantum_info); do { + const PixelPacket + *p; + + ssize_t + y; + for (y=0; y < (ssize_t)image->columns; y++) { p=GetVirtualPixels(image,y,0,1,image->rows,&image->exception); @@ -1296,8 +1656,9 @@ static MagickBooleanType WriteMATImage(c } if (!SyncAuthenticPixels(image,exception)) break; - } while(z-- >= 2); - while(padding-->0) (void) WriteBlobByte(image,0); + } while (z-- >= 2); + while (padding-- > 0) + (void) WriteBlobByte(image,0); quantum_info=DestroyQuantumInfo(quantum_info); if (GetNextImageInList(image) == (Image *) NULL) break; @@ -1308,5 +1669,5 @@ static MagickBooleanType WriteMATImage(c break; } while (image_info->adjoin != MagickFalse); (void) CloseBlob(image); - return(MagickTrue); + return(status); }
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