static Image *ReadCINImage(const ImageInfo *image_info, ExceptionInfo *exception) { #define MonoColorType 1 #define RGBColorType 3 char magick[4]; CINInfo cin; Image *image; ssize_t y; MagickBooleanType status; MagickOffsetType offset; QuantumInfo *quantum_info; QuantumType quantum_type; register ssize_t i; register PixelPacket *q; size_t length; ssize_t count; unsigned char *pixels; size_t lsb_first; /* Open image file. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); if (image_info->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", image_info->filename); assert(exception != (ExceptionInfo *) NULL); assert(exception->signature == MagickSignature); image=AcquireImage(image_info); status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); if (status == MagickFalse) { image=DestroyImageList(image); return((Image *) NULL); } /* File information. */ offset=0; count=ReadBlob(image,4,(unsigned char *) magick); offset+=count; if ((count != 4) || ((LocaleNCompare((char *) magick,"\200\052\137\327",4) != 0))) ThrowReaderException(CorruptImageError,"ImproperImageHeader"); image->endian=LSBEndian; lsb_first=1; if ((int) (*(char *) &lsb_first) != 0) image->endian=MSBEndian; cin.file.image_offset=ReadBlobLong(image); offset+=4; cin.file.generic_length=ReadBlobLong(image); offset+=4; cin.file.industry_length=ReadBlobLong(image); offset+=4; cin.file.user_length=ReadBlobLong(image); offset+=4; cin.file.file_size=ReadBlobLong(image); offset+=4; offset+=ReadBlob(image,sizeof(cin.file.version),(unsigned char *) cin.file.version); (void) SetImageProperty(image,"dpx:file.version",cin.file.version); offset+=ReadBlob(image,sizeof(cin.file.filename),(unsigned char *) cin.file.filename); (void) SetImageProperty(image,"dpx:file.filename",cin.file.filename); offset+=ReadBlob(image,sizeof(cin.file.create_date),(unsigned char *) cin.file.create_date); (void) SetImageProperty(image,"dpx:file.create_date",cin.file.create_date); offset+=ReadBlob(image,sizeof(cin.file.create_time),(unsigned char *) cin.file.create_time); (void) SetImageProperty(image,"dpx:file.create_time",cin.file.create_time); offset+=ReadBlob(image,sizeof(cin.file.reserve),(unsigned char *) cin.file.reserve); /* Image information. */ cin.image.orientation=(unsigned char) ReadBlobByte(image); offset++; if (cin.image.orientation != (unsigned char) (~0U)) (void) FormatImageProperty(image,"dpx:image.orientation","%d", cin.image.orientation); switch (cin.image.orientation) { default: case 0: image->orientation=TopLeftOrientation; break; case 1: image->orientation=TopRightOrientation; break; case 2: image->orientation=BottomLeftOrientation; break; case 3: image->orientation=BottomRightOrientation; break; case 4: image->orientation=LeftTopOrientation; break; case 5: image->orientation=RightTopOrientation; break; case 6: image->orientation=LeftBottomOrientation; break; case 7: image->orientation=RightBottomOrientation; break; } cin.image.number_channels=(unsigned char) ReadBlobByte(image); offset++; offset+=ReadBlob(image,sizeof(cin.image.reserve1),(unsigned char *) cin.image.reserve1); for (i=0; i < 8; i++) { cin.image.channel[i].designator[0]=(unsigned char) ReadBlobByte(image); offset++; cin.image.channel[i].designator[1]=(unsigned char) ReadBlobByte(image); offset++; cin.image.channel[i].bits_per_pixel=(unsigned char) ReadBlobByte(image); offset++; cin.image.channel[i].reserve=(unsigned char) ReadBlobByte(image); offset++; cin.image.channel[i].pixels_per_line=ReadBlobLong(image); offset+=4; cin.image.channel[i].lines_per_image=ReadBlobLong(image); offset+=4; cin.image.channel[i].min_data=ReadBlobFloat(image); offset+=4; cin.image.channel[i].min_quantity=ReadBlobFloat(image); offset+=4; cin.image.channel[i].max_data=ReadBlobFloat(image); offset+=4; cin.image.channel[i].max_quantity=ReadBlobFloat(image); offset+=4; } cin.image.white_point[0]=ReadBlobFloat(image); offset+=4; if (IsFloatDefined(cin.image.white_point[0]) != MagickFalse) image->chromaticity.white_point.x=cin.image.white_point[0]; cin.image.white_point[1]=ReadBlobFloat(image); offset+=4; if (IsFloatDefined(cin.image.white_point[1]) != MagickFalse) image->chromaticity.white_point.y=cin.image.white_point[1]; cin.image.red_primary_chromaticity[0]=ReadBlobFloat(image); offset+=4; if (IsFloatDefined(cin.image.red_primary_chromaticity[0]) != MagickFalse) image->chromaticity.red_primary.x=cin.image.red_primary_chromaticity[0]; cin.image.red_primary_chromaticity[1]=ReadBlobFloat(image); offset+=4; if (IsFloatDefined(cin.image.red_primary_chromaticity[1]) != MagickFalse) image->chromaticity.red_primary.y=cin.image.red_primary_chromaticity[1]; cin.image.green_primary_chromaticity[0]=ReadBlobFloat(image); offset+=4; if (IsFloatDefined(cin.image.green_primary_chromaticity[0]) != MagickFalse) image->chromaticity.red_primary.x=cin.image.green_primary_chromaticity[0]; cin.image.green_primary_chromaticity[1]=ReadBlobFloat(image); offset+=4; if (IsFloatDefined(cin.image.green_primary_chromaticity[1]) != MagickFalse) image->chromaticity.green_primary.y=cin.image.green_primary_chromaticity[1]; cin.image.blue_primary_chromaticity[0]=ReadBlobFloat(image); offset+=4; if (IsFloatDefined(cin.image.blue_primary_chromaticity[0]) != MagickFalse) image->chromaticity.blue_primary.x=cin.image.blue_primary_chromaticity[0]; cin.image.blue_primary_chromaticity[1]=ReadBlobFloat(image); offset+=4; if (IsFloatDefined(cin.image.blue_primary_chromaticity[1]) != MagickFalse) image->chromaticity.blue_primary.y=cin.image.blue_primary_chromaticity[1]; offset+=ReadBlob(image,sizeof(cin.image.label),(unsigned char *) cin.image.label); (void) SetImageProperty(image,"dpx:image.label",cin.image.label); offset+=ReadBlob(image,sizeof(cin.image.reserve),(unsigned char *) cin.image.reserve); /* Image data format information. */ cin.data_format.interleave=(unsigned char) ReadBlobByte(image); offset++; cin.data_format.packing=(unsigned char) ReadBlobByte(image); offset++; cin.data_format.sign=(unsigned char) ReadBlobByte(image); offset++; cin.data_format.sense=(unsigned char) ReadBlobByte(image); offset++; cin.data_format.line_pad=ReadBlobLong(image); offset+=4; cin.data_format.channel_pad=ReadBlobLong(image); offset+=4; offset+=ReadBlob(image,sizeof(cin.data_format.reserve),(unsigned char *) cin.data_format.reserve); /* Image origination information. */ cin.origination.x_offset=(int) ReadBlobLong(image); offset+=4; if ((size_t) cin.origination.x_offset != ~0UL) (void) FormatImageProperty(image,"dpx:origination.x_offset","%.20g", (double) cin.origination.x_offset); cin.origination.y_offset=(ssize_t) ReadBlobLong(image); offset+=4; if ((size_t) cin.origination.y_offset != ~0UL) (void) FormatImageProperty(image,"dpx:origination.y_offset","%.20g", (double) cin.origination.y_offset); offset+=ReadBlob(image,sizeof(cin.origination.filename),(unsigned char *) cin.origination.filename); (void) SetImageProperty(image,"dpx:origination.filename", cin.origination.filename); offset+=ReadBlob(image,sizeof(cin.origination.create_date),(unsigned char *) cin.origination.create_date); (void) SetImageProperty(image,"dpx:origination.create_date", cin.origination.create_date); offset+=ReadBlob(image,sizeof(cin.origination.create_time),(unsigned char *) cin.origination.create_time); (void) SetImageProperty(image,"dpx:origination.create_time", cin.origination.create_time); offset+=ReadBlob(image,sizeof(cin.origination.device),(unsigned char *) cin.origination.device); (void) SetImageProperty(image,"dpx:origination.device", cin.origination.device); offset+=ReadBlob(image,sizeof(cin.origination.model),(unsigned char *) cin.origination.model); (void) SetImageProperty(image,"dpx:origination.model",cin.origination.model); offset+=ReadBlob(image,sizeof(cin.origination.serial),(unsigned char *) cin.origination.serial); (void) SetImageProperty(image,"dpx:origination.serial", cin.origination.serial); cin.origination.x_pitch=ReadBlobFloat(image); offset+=4; cin.origination.y_pitch=ReadBlobFloat(image); offset+=4; cin.origination.gamma=ReadBlobFloat(image); offset+=4; if (IsFloatDefined(cin.origination.gamma) != MagickFalse) image->gamma=cin.origination.gamma; offset+=ReadBlob(image,sizeof(cin.origination.reserve),(unsigned char *) cin.origination.reserve); if ((cin.file.image_offset > 2048) && (cin.file.user_length != 0)) { /* Image film information. */ cin.film.id=ReadBlobByte(image); offset++; if (((size_t) cin.film.id) != ~0UL) (void) FormatImageProperty(image,"dpx:film.id","%d",cin.film.id); cin.film.type=ReadBlobByte(image); offset++; if (((size_t) cin.film.type) != ~0UL) (void) FormatImageProperty(image,"dpx:film.type","%d",cin.film.type); cin.film.offset=ReadBlobByte(image); offset++; if (((size_t) cin.film.offset) != ~0UL) (void) FormatImageProperty(image,"dpx:film.offset","%d", cin.film.offset); cin.film.reserve1=ReadBlobByte(image); offset++; cin.film.prefix=ReadBlobLong(image); offset+=4; if (cin.film.prefix != ~0UL) (void) FormatImageProperty(image,"dpx:film.prefix","%.20g",(double) cin.film.prefix); cin.film.count=ReadBlobLong(image); offset+=4; offset+=ReadBlob(image,sizeof(cin.film.format),(unsigned char *) cin.film.format); (void) SetImageProperty(image,"dpx:film.format",cin.film.format); cin.film.frame_position=ReadBlobLong(image); offset+=4; if (cin.film.frame_position != ~0UL) (void) FormatImageProperty(image,"dpx:film.frame_position","%.20g", (double) cin.film.frame_position); cin.film.frame_rate=ReadBlobFloat(image); offset+=4; if (IsFloatDefined(cin.film.frame_rate) != MagickFalse) (void) FormatImageProperty(image,"dpx:film.frame_rate","%g", cin.film.frame_rate); offset+=ReadBlob(image,sizeof(cin.film.frame_id),(unsigned char *) cin.film.frame_id); (void) SetImageProperty(image,"dpx:film.frame_id",cin.film.frame_id); offset+=ReadBlob(image,sizeof(cin.film.slate_info),(unsigned char *) cin.film.slate_info); (void) SetImageProperty(image,"dpx:film.slate_info",cin.film.slate_info); offset+=ReadBlob(image,sizeof(cin.film.reserve),(unsigned char *) cin.film.reserve); } if ((cin.file.image_offset > 2048) && (cin.file.user_length != 0)) { StringInfo *profile; /* User defined data. */ profile=AcquireStringInfo(cin.file.user_length); offset+=ReadBlob(image,GetStringInfoLength(profile), GetStringInfoDatum(profile)); (void) SetImageProfile(image,"dpx:user.data",profile); profile=DestroyStringInfo(profile); } for ( ; offset < (MagickOffsetType) cin.file.image_offset; offset++) (void) ReadBlobByte(image); image->depth=cin.image.channel[0].bits_per_pixel; image->columns=cin.image.channel[0].pixels_per_line; image->rows=cin.image.channel[0].lines_per_image; if (image_info->ping) { (void) CloseBlob(image); return(image); } /* Convert CIN raster image to pixel packets. */ quantum_info=AcquireQuantumInfo(image_info,image); if (quantum_info == (QuantumInfo *) NULL) ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); quantum_info->quantum=32; quantum_info->pack=MagickFalse; quantum_type=RGBQuantum; pixels=GetQuantumPixels(quantum_info); length=GetQuantumExtent(image,quantum_info,quantum_type); length=GetBytesPerRow(image->columns,3,image->depth,MagickTrue); if (cin.image.number_channels == 1) { quantum_type=GrayQuantum; length=GetBytesPerRow(image->columns,1,image->depth,MagickTrue); } for (y=0; y < (ssize_t) image->rows; y++) { q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); if (q == (PixelPacket *) NULL) break; count=ReadBlob(image,length,pixels); if ((size_t) count != length) break; (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, quantum_type,pixels,exception); if (SyncAuthenticPixels(image,exception) == MagickFalse) break; if (image->previous == (Image *) NULL) { status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, image->rows); if (status == MagickFalse) break; } } SetQuantumImageType(image,quantum_type); quantum_info=DestroyQuantumInfo(quantum_info); if (EOFBlob(image) != MagickFalse) ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile", image->filename); image->colorspace=LogColorspace; (void) CloseBlob(image); return(GetFirstImageInList(image)); }
/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e a d J N X I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % ReadJNXImage() reads an image in the Garmin tile storage format 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 ReadJNXImage method is: % % Image *ReadJNXImage(const ImageInfo *image_info,ExceptionInfo *exception) % % A description of each parameter follows: % % o image_info: the image info. % % o exception: return any errors or warnings in this structure. % */ static Image *ReadJNXImage(const ImageInfo *image_info,ExceptionInfo *exception) { #define JNXMaxLevels 20 Image *image, *images; JNXInfo jnx_info; JNXLevelInfo jnx_level_info[JNXMaxLevels]; MagickBooleanType status; register ssize_t i; /* Open image file. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); if (image_info->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", image_info->filename); assert(exception != (ExceptionInfo *) NULL); assert(exception->signature == MagickSignature); image=AcquireImage(image_info); status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); if (status == MagickFalse) { image=DestroyImageList(image); return((Image *) NULL); } /* Read JNX header. */ (void) ResetMagickMemory(&jnx_info,0,sizeof(jnx_info)); jnx_info.version=(int) ReadBlobLSBLong(image); if ((jnx_info.version != 3) && (jnx_info.version != 4)) ThrowReaderException(CorruptImageError,"ImproperImageHeader"); jnx_info.serial=(int) ReadBlobLSBLong(image); jnx_info.northeast.x=180.0*((int) ReadBlobLSBLong(image))/0x7fffffff; jnx_info.northeast.y=180.0*((int) ReadBlobLSBLong(image))/0x7fffffff; jnx_info.southwest.x=180.0*((int) ReadBlobLSBLong(image))/0x7fffffff; jnx_info.southwest.y=180.0*((int) ReadBlobLSBLong(image))/0x7fffffff; jnx_info.levels=(int) ReadBlobLSBLong(image); if (jnx_info.levels > JNXMaxLevels) ThrowReaderException(CorruptImageError,"ImproperImageHeader"); jnx_info.expire=(int) ReadBlobLSBLong(image); jnx_info.id=(int) ReadBlobLSBLong(image); jnx_info.crc=(int) ReadBlobLSBLong(image); jnx_info.signature=(int) ReadBlobLSBLong(image); jnx_info.offset=ReadBlobLSBLong(image); if (jnx_info.version > 3) jnx_info.order=(int) ReadBlobLSBLong(image); else if (jnx_info.version == 3) jnx_info.order=30; /* Read JNX levels. */ (void) ResetMagickMemory(&jnx_level_info,0,sizeof(jnx_level_info)); for (i=0; i < (ssize_t) jnx_info.levels; i++) { jnx_level_info[i].count=(int) ReadBlobLSBLong(image); if (jnx_level_info[i].count > 50000) ThrowReaderException(CorruptImageError,"ImproperImageHeader"); jnx_level_info[i].offset=(int) ReadBlobLSBLong(image); jnx_level_info[i].scale=ReadBlobLSBLong(image); if (jnx_info.version > 3) { register ssize_t j; unsigned short c; (void) ReadBlobLSBLong(image); j=0; while ((c=ReadBlobLSBShort(image)) != 0) if (j < (MaxTextExtent-1)) jnx_level_info[i].copyright[j++]=c; jnx_level_info[i].copyright[j]=0; } } /* Read JNX tiles. */ images=NewImageList(); for (i=0; i < (ssize_t) jnx_info.levels; i++) { MagickOffsetType offset; register ssize_t j; offset=SeekBlob(image,(MagickOffsetType) jnx_level_info[i].offset,SEEK_SET); if (offset != (MagickOffsetType) jnx_level_info[i].offset) continue; for (j=0; j < (ssize_t) jnx_level_info[i].count; j++) { Image *tile_image; ImageInfo *read_info; int tile_offset; MagickOffsetType restore_offset; PointInfo northeast, southwest; ssize_t count; unsigned char *blob; unsigned int tile_length; northeast.x=180.0*((int) ReadBlobLSBLong(image))/0x7fffffff; northeast.y=180.0*((int) ReadBlobLSBLong(image))/0x7fffffff; southwest.x=180.0*((int) ReadBlobLSBLong(image))/0x7fffffff; southwest.y=180.0*((int) ReadBlobLSBLong(image))/0x7fffffff; (void) ReadBlobLSBShort(image); /* width */ (void) ReadBlobLSBShort(image); /* height */ tile_length=ReadBlobLSBLong(image); tile_offset=(int) ReadBlobLSBLong(image); restore_offset=TellBlob(image); offset=SeekBlob(image,(MagickOffsetType) tile_offset,SEEK_SET); if (offset != (MagickOffsetType) tile_offset) continue; /* Read a tile. */ blob=(unsigned char *) AcquireQuantumMemory((size_t) tile_length+2, sizeof(*blob)); if (blob == (unsigned char *) NULL) { if (images != (Image *) NULL) images=DestroyImageList(images); ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); } blob[0]=0xFF; blob[1]=0xD8; count=ReadBlob(image,tile_length,blob+2); if (count != (ssize_t) tile_length) { if (images != (Image *) NULL) images=DestroyImageList(images); blob=(unsigned char *) RelinquishMagickMemory(blob); ThrowReaderException(CorruptImageError,"UnexpectedEndOfFile"); } read_info=CloneImageInfo(image_info); (void) CopyMagickString(read_info->magick,"JPEG",MaxTextExtent); tile_image=BlobToImage(read_info,blob,tile_length+2,exception); read_info=DestroyImageInfo(read_info); blob=(unsigned char *) RelinquishMagickMemory(blob); offset=SeekBlob(image,restore_offset,SEEK_SET); if (tile_image == (Image *) NULL) continue; (void) CopyMagickString(tile_image->magick,image->magick,MaxTextExtent); (void) FormatImageProperty(tile_image,"jnx:northeast","%.20g,%.20g", northeast.x,northeast.y); (void) FormatImageProperty(tile_image,"jnx:southwest","%.20g,%.20g", southwest.x,southwest.y); AppendImageToList(&images,tile_image); } if (image->progress_monitor != (MagickProgressMonitor) NULL) { MagickBooleanType proceed; proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType) i, (MagickSizeType) jnx_info.levels); if (proceed == MagickFalse) status=MagickFalse; } } (void) CloseBlob(image); image=DestroyImage(image); if (images == (Image *) NULL) return((Image *) NULL); return(GetFirstImageInList(images)); }