| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % PPPP N N M M % |
| % P P NN N MM MM % |
| % PPPP N N N M M M % |
| % P N NN M M % |
| % P N N M M % |
| % % |
| % % |
| % Read/Write PBMPlus Portable Anymap Image Format % |
| % % |
| % Software Design % |
| % Cristy % |
| % July 1992 % |
| % % |
| % % |
| % Copyright 1999-2020 ImageMagick Studio LLC, a non-profit organization % |
| % dedicated to making software imaging solutions freely available. % |
| % % |
| % You may not use this file except in compliance with the License. You may % |
| % obtain a copy of the License at % |
| % % |
| % https://imagemagick.org/script/license.php % |
| % % |
| % Unless required by applicable law or agreed to in writing, software % |
| % distributed under the License is distributed on an "AS IS" BASIS, % |
| % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| % See the License for the specific language governing permissions and % |
| % limitations under the License. % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % |
| */ |
| |
| /* |
| 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.h" |
| #include "MagickCore/color-private.h" |
| #include "MagickCore/colorspace.h" |
| #include "MagickCore/colorspace-private.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/module.h" |
| #include "MagickCore/monitor.h" |
| #include "MagickCore/monitor-private.h" |
| #include "MagickCore/pixel-accessor.h" |
| #include "MagickCore/property.h" |
| #include "MagickCore/quantum-private.h" |
| #include "MagickCore/static.h" |
| #include "MagickCore/statistic.h" |
| #include "MagickCore/string_.h" |
| #include "MagickCore/string-private.h" |
| |
| /* |
| Typedef declarations. |
| */ |
| typedef struct _CommentInfo |
| { |
| char |
| *comment; |
| |
| size_t |
| extent; |
| } CommentInfo; |
| |
| /* |
| Forward declarations. |
| */ |
| static MagickBooleanType |
| WritePNMImage(const ImageInfo *,Image *,ExceptionInfo *); |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % I s P N M % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % IsPNM() returns MagickTrue if the image format type, identified by the |
| % magick string, is PNM. |
| % |
| % The format of the IsPNM method is: |
| % |
| % MagickBooleanType IsPNM(const unsigned char *magick,const size_t extent) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick: compare image format pattern against these bytes. |
| % |
| % o extent: Specifies the extent of the magick string. |
| % |
| */ |
| static MagickBooleanType IsPNM(const unsigned char *magick,const size_t extent) |
| { |
| if (extent < 2) |
| return(MagickFalse); |
| if ((*magick == (unsigned char) 'P') && |
| ((magick[1] == '1') || (magick[1] == '2') || (magick[1] == '3') || |
| (magick[1] == '4') || (magick[1] == '5') || (magick[1] == '6') || |
| (magick[1] == '7') || (magick[1] == 'F') || (magick[1] == 'f'))) |
| return(MagickTrue); |
| return(MagickFalse); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e a d P N M I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % ReadPNMImage() reads a Portable Anymap 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 ReadPNMImage method is: |
| % |
| % Image *ReadPNMImage(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 int PNMComment(Image *image,CommentInfo *comment_info, |
| ExceptionInfo *exception) |
| { |
| int |
| c; |
| |
| register char |
| *p; |
| |
| /* |
| Read comment. |
| */ |
| (void) exception; |
| p=comment_info->comment+strlen(comment_info->comment); |
| for (c='#'; (c != EOF) && (c != (int) '\n') && (c != (int) '\r'); p++) |
| { |
| if ((size_t) (p-comment_info->comment+1) >= comment_info->extent) |
| { |
| comment_info->extent<<=1; |
| comment_info->comment=(char *) ResizeQuantumMemory( |
| comment_info->comment,comment_info->extent, |
| sizeof(*comment_info->comment)); |
| if (comment_info->comment == (char *) NULL) |
| return(-1); |
| p=comment_info->comment+strlen(comment_info->comment); |
| } |
| c=ReadBlobByte(image); |
| if (c != EOF) |
| { |
| *p=(char) c; |
| *(p+1)='\0'; |
| } |
| } |
| return(c); |
| } |
| |
| static unsigned int PNMInteger(Image *image,CommentInfo *comment_info, |
| const unsigned int base,ExceptionInfo *exception) |
| { |
| int |
| c; |
| |
| unsigned int |
| value; |
| |
| /* |
| Skip any leading whitespace. |
| */ |
| do |
| { |
| c=ReadBlobByte(image); |
| if (c == EOF) |
| return(0); |
| if (c == (int) '#') |
| c=PNMComment(image,comment_info,exception); |
| } while ((c == ' ') || (c == '\t') || (c == '\n') || (c == '\r')); |
| if (base == 2) |
| return((unsigned int) (c-(int) '0')); |
| /* |
| Evaluate number. |
| */ |
| value=0; |
| while (isdigit(c) != 0) |
| { |
| if (value <= (unsigned int) (INT_MAX/10)) |
| { |
| value*=10; |
| if (value <= (unsigned int) (INT_MAX-(c-(int) '0'))) |
| value+=c-(int) '0'; |
| } |
| c=ReadBlobByte(image); |
| if (c == EOF) |
| return(0); |
| } |
| if (c == (int) '#') |
| c=PNMComment(image,comment_info,exception); |
| return(value); |
| } |
| |
| static Image *ReadPNMImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| { |
| #define ThrowPNMException(exception,message) \ |
| { \ |
| if (comment_info.comment != (char *) NULL) \ |
| comment_info.comment=DestroyString(comment_info.comment); \ |
| ThrowReaderException((exception),(message)); \ |
| } |
| |
| char |
| format; |
| |
| CommentInfo |
| comment_info; |
| |
| const void |
| *stream; |
| |
| double |
| quantum_scale; |
| |
| Image |
| *image; |
| |
| MagickBooleanType |
| status; |
| |
| QuantumAny |
| max_value; |
| |
| QuantumInfo |
| *quantum_info; |
| |
| QuantumType |
| quantum_type; |
| |
| size_t |
| depth, |
| extent, |
| packet_size; |
| |
| ssize_t |
| count, |
| row, |
| y; |
| |
| unsigned char |
| *pixels; |
| |
| /* |
| Open image file. |
| */ |
| assert(image_info != (const ImageInfo *) NULL); |
| assert(image_info->signature == MagickCoreSignature); |
| if (image_info->debug != MagickFalse) |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| image_info->filename); |
| assert(exception != (ExceptionInfo *) NULL); |
| assert(exception->signature == MagickCoreSignature); |
| image=AcquireImage(image_info,exception); |
| status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| if (status == MagickFalse) |
| { |
| image=DestroyImageList(image); |
| return((Image *) NULL); |
| } |
| /* |
| Read PNM image. |
| */ |
| count=ReadBlob(image,1,(unsigned char *) &format); |
| do |
| { |
| /* |
| Initialize image structure. |
| */ |
| comment_info.comment=AcquireString(NULL); |
| comment_info.extent=MagickPathExtent; |
| if ((count != 1) || (format != 'P')) |
| ThrowPNMException(CorruptImageError,"ImproperImageHeader"); |
| max_value=1; |
| quantum_type=UndefinedQuantum; |
| quantum_scale=1.0; |
| format=(char) ReadBlobByte(image); |
| if (format != '7') |
| { |
| /* |
| PBM, PGM, PPM, and PNM. |
| */ |
| image->columns=(size_t) PNMInteger(image,&comment_info,10,exception); |
| image->rows=(size_t) PNMInteger(image,&comment_info,10,exception); |
| if ((format == 'f') || (format == 'F')) |
| { |
| char |
| scale[MagickPathExtent]; |
| |
| if (ReadBlobString(image,scale) != (char *) NULL) |
| quantum_scale=StringToDouble(scale,(char **) NULL); |
| } |
| else |
| { |
| if ((format == '1') || (format == '4')) |
| max_value=1; /* bitmap */ |
| else |
| max_value=(QuantumAny) PNMInteger(image,&comment_info,10, |
| exception); |
| } |
| } |
| else |
| { |
| char |
| keyword[MagickPathExtent], |
| value[MagickPathExtent]; |
| |
| int |
| c; |
| |
| register char |
| *p; |
| |
| /* |
| PAM. |
| */ |
| for (c=ReadBlobByte(image); c != EOF; c=ReadBlobByte(image)) |
| { |
| while (isspace(c) != 0) |
| c=ReadBlobByte(image); |
| if (c == '#') |
| { |
| /* |
| Comment. |
| */ |
| c=PNMComment(image,&comment_info,exception); |
| c=ReadBlobByte(image); |
| while (isspace(c) != 0) |
| c=ReadBlobByte(image); |
| } |
| p=keyword; |
| do |
| { |
| if ((size_t) (p-keyword) < (MagickPathExtent-1)) |
| *p++=c; |
| c=ReadBlobByte(image); |
| } while (isalnum(c)); |
| *p='\0'; |
| if (LocaleCompare(keyword,"endhdr") == 0) |
| break; |
| while (isspace(c) != 0) |
| c=ReadBlobByte(image); |
| p=value; |
| while (isalnum(c) || (c == '_')) |
| { |
| if ((size_t) (p-value) < (MagickPathExtent-1)) |
| *p++=c; |
| c=ReadBlobByte(image); |
| } |
| *p='\0'; |
| /* |
| Assign a value to the specified keyword. |
| */ |
| if (LocaleCompare(keyword,"depth") == 0) |
| packet_size=StringToUnsignedLong(value); |
| (void) packet_size; |
| if (LocaleCompare(keyword,"height") == 0) |
| image->rows=StringToUnsignedLong(value); |
| if (LocaleCompare(keyword,"maxval") == 0) |
| max_value=StringToUnsignedLong(value); |
| if ((quantum_type == UndefinedQuantum) && |
| (LocaleCompare(keyword,"TUPLTYPE") == 0)) |
| { |
| if (LocaleCompare(value,"BLACKANDWHITE") == 0) |
| { |
| (void) SetImageColorspace(image,GRAYColorspace,exception); |
| quantum_type=GrayQuantum; |
| } |
| if (LocaleCompare(value,"BLACKANDWHITE_ALPHA") == 0) |
| { |
| (void) SetImageColorspace(image,GRAYColorspace,exception); |
| image->alpha_trait=BlendPixelTrait; |
| quantum_type=GrayAlphaQuantum; |
| } |
| if (LocaleCompare(value,"GRAYSCALE") == 0) |
| { |
| quantum_type=GrayQuantum; |
| (void) SetImageColorspace(image,GRAYColorspace,exception); |
| } |
| if (LocaleCompare(value,"GRAYSCALE_ALPHA") == 0) |
| { |
| (void) SetImageColorspace(image,GRAYColorspace,exception); |
| image->alpha_trait=BlendPixelTrait; |
| quantum_type=GrayAlphaQuantum; |
| } |
| if (LocaleCompare(value,"RGB_ALPHA") == 0) |
| { |
| image->alpha_trait=BlendPixelTrait; |
| quantum_type=RGBAQuantum; |
| } |
| if (LocaleCompare(value,"CMYK") == 0) |
| { |
| (void) SetImageColorspace(image,CMYKColorspace,exception); |
| quantum_type=CMYKQuantum; |
| } |
| if (LocaleCompare(value,"CMYK_ALPHA") == 0) |
| { |
| (void) SetImageColorspace(image,CMYKColorspace,exception); |
| image->alpha_trait=BlendPixelTrait; |
| quantum_type=CMYKAQuantum; |
| } |
| } |
| if (LocaleCompare(keyword,"width") == 0) |
| image->columns=StringToUnsignedLong(value); |
| } |
| } |
| if (quantum_type == UndefinedQuantum) |
| quantum_type=RGBQuantum; |
| if ((image->columns == 0) || (image->rows == 0)) |
| ThrowPNMException(CorruptImageError,"NegativeOrZeroImageSize"); |
| if ((max_value == 0) || (max_value > 4294967295UL)) |
| ThrowPNMException(CorruptImageError,"ImproperImageHeader"); |
| for (depth=1; GetQuantumRange(depth) < max_value; depth++) ; |
| image->depth=depth; |
| if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0)) |
| if (image->scene >= (image_info->scene+image_info->number_scenes-1)) |
| break; |
| if ((MagickSizeType) (image->columns*image->rows/8) > GetBlobSize(image)) |
| ThrowPNMException(CorruptImageError,"InsufficientImageDataInFile"); |
| status=SetImageExtent(image,image->columns,image->rows,exception); |
| if (status == MagickFalse) |
| { |
| comment_info.comment=DestroyString(comment_info.comment); \ |
| return(DestroyImageList(image)); |
| } |
| (void) ResetImagePixels(image,exception); |
| /* |
| Convert PNM pixels to runextent-encoded MIFF packets. |
| */ |
| row=0; |
| y=0; |
| switch (format) |
| { |
| case '1': |
| { |
| /* |
| Convert PBM image to pixel packets. |
| */ |
| (void) SetImageColorspace(image,GRAYColorspace,exception); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| register ssize_t |
| x; |
| |
| register Quantum |
| *magick_restrict q; |
| |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| SetPixelGray(image,PNMInteger(image,&comment_info,2,exception) == |
| 0 ? QuantumRange : 0,q); |
| if (EOFBlob(image) != MagickFalse) |
| break; |
| q+=GetPixelChannels(image); |
| } |
| if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| break; |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| if (EOFBlob(image) != MagickFalse) |
| break; |
| } |
| image->type=BilevelType; |
| break; |
| } |
| case '2': |
| { |
| Quantum |
| intensity; |
| |
| /* |
| Convert PGM image to pixel packets. |
| */ |
| (void) SetImageColorspace(image,GRAYColorspace,exception); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| register ssize_t |
| x; |
| |
| register Quantum |
| *magick_restrict q; |
| |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| intensity=ScaleAnyToQuantum(PNMInteger(image,&comment_info,10, |
| exception),max_value); |
| if (EOFBlob(image) != MagickFalse) |
| break; |
| SetPixelGray(image,intensity,q); |
| q+=GetPixelChannels(image); |
| } |
| if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| break; |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| if (EOFBlob(image) != MagickFalse) |
| break; |
| } |
| image->type=GrayscaleType; |
| break; |
| } |
| case '3': |
| { |
| /* |
| Convert PNM image to pixel packets. |
| */ |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| register ssize_t |
| x; |
| |
| register Quantum |
| *magick_restrict q; |
| |
| q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| Quantum |
| pixel; |
| |
| pixel=ScaleAnyToQuantum(PNMInteger(image,&comment_info,10, |
| exception),max_value); |
| if (EOFBlob(image) != MagickFalse) |
| break; |
| SetPixelRed(image,pixel,q); |
| pixel=ScaleAnyToQuantum(PNMInteger(image,&comment_info,10, |
| exception),max_value); |
| SetPixelGreen(image,pixel,q); |
| pixel=ScaleAnyToQuantum(PNMInteger(image,&comment_info,10, |
| exception),max_value); |
| SetPixelBlue(image,pixel,q); |
| q+=GetPixelChannels(image); |
| } |
| if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| break; |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| if (EOFBlob(image) != MagickFalse) |
| break; |
| } |
| break; |
| } |
| case '4': |
| { |
| /* |
| Convert PBM raw image to pixel packets. |
| */ |
| (void) SetImageColorspace(image,GRAYColorspace,exception); |
| quantum_type=GrayQuantum; |
| if (image->storage_class == PseudoClass) |
| quantum_type=IndexQuantum; |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| ThrowPNMException(ResourceLimitError,"MemoryAllocationFailed"); |
| SetQuantumMinIsWhite(quantum_info,MagickTrue); |
| extent=GetQuantumExtent(image,quantum_info,quantum_type); |
| pixels=GetQuantumPixels(quantum_info); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| MagickBooleanType |
| sync; |
| |
| register Quantum |
| *magick_restrict q; |
| |
| ssize_t |
| offset; |
| |
| size_t |
| length; |
| |
| stream=ReadBlobStream(image,extent,pixels,&count); |
| if (count != (ssize_t) extent) |
| break; |
| if ((image->progress_monitor != (MagickProgressMonitor) NULL) && |
| (image->previous == (Image *) NULL)) |
| { |
| MagickBooleanType |
| proceed; |
| |
| proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType) |
| row,image->rows); |
| if (proceed == MagickFalse) |
| break; |
| } |
| offset=row++; |
| q=QueueAuthenticPixels(image,0,offset,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| length=ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| quantum_type,(unsigned char *) stream,exception); |
| if (length != extent) |
| break; |
| sync=SyncAuthenticPixels(image,exception); |
| if (sync == MagickFalse) |
| break; |
| } |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| SetQuantumImageType(image,quantum_type); |
| break; |
| } |
| case '5': |
| { |
| /* |
| Convert PGM raw image to pixel packets. |
| */ |
| (void) SetImageColorspace(image,GRAYColorspace,exception); |
| quantum_type=GrayQuantum; |
| extent=(image->depth <= 8 ? 1 : image->depth <= 16 ? 2 : 4)* |
| image->columns; |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| ThrowPNMException(ResourceLimitError,"MemoryAllocationFailed"); |
| pixels=GetQuantumPixels(quantum_info); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| MagickBooleanType |
| sync; |
| |
| register const unsigned char |
| *magick_restrict p; |
| |
| register ssize_t |
| x; |
| |
| register Quantum |
| *magick_restrict q; |
| |
| ssize_t |
| offset; |
| |
| stream=ReadBlobStream(image,extent,pixels,&count); |
| if (count != (ssize_t) extent) |
| break; |
| if ((image->progress_monitor != (MagickProgressMonitor) NULL) && |
| (image->previous == (Image *) NULL)) |
| { |
| MagickBooleanType |
| proceed; |
| |
| proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType) |
| row,image->rows); |
| if (proceed == MagickFalse) |
| break; |
| } |
| offset=row++; |
| q=QueueAuthenticPixels(image,0,offset,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| p=(unsigned char *) stream; |
| switch (image->depth) |
| { |
| case 8: |
| case 16: |
| case 32: |
| { |
| (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| quantum_type,(unsigned char *) stream,exception); |
| break; |
| } |
| default: |
| { |
| if (image->depth <= 8) |
| { |
| unsigned char |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushCharPixel(p,&pixel); |
| SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),q); |
| q+=GetPixelChannels(image); |
| } |
| } |
| else if (image->depth <= 16) |
| { |
| unsigned short |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),q); |
| q+=GetPixelChannels(image); |
| } |
| } |
| else |
| { |
| unsigned int |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value),q); |
| q+=GetPixelChannels(image); |
| } |
| } |
| break; |
| } |
| } |
| sync=SyncAuthenticPixels(image,exception); |
| if (sync == MagickFalse) |
| break; |
| } |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| SetQuantumImageType(image,quantum_type); |
| break; |
| } |
| case '6': |
| { |
| /* |
| Convert PNM raster image to pixel packets. |
| */ |
| quantum_type=RGBQuantum; |
| extent=3*(image->depth <= 8 ? 1 : image->depth <= 16 ? 2 : 4)* |
| image->columns; |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| ThrowPNMException(ResourceLimitError,"MemoryAllocationFailed"); |
| (void) SetQuantumEndian(image,quantum_info,MSBEndian); |
| pixels=GetQuantumPixels(quantum_info); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| MagickBooleanType |
| sync; |
| |
| register const unsigned char |
| *magick_restrict p; |
| |
| register ssize_t |
| x; |
| |
| register Quantum |
| *magick_restrict q; |
| |
| ssize_t |
| offset; |
| |
| stream=ReadBlobStream(image,extent,pixels,&count); |
| if (count != (ssize_t) extent) |
| break; |
| if ((image->progress_monitor != (MagickProgressMonitor) NULL) && |
| (image->previous == (Image *) NULL)) |
| { |
| MagickBooleanType |
| proceed; |
| |
| proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType) |
| row,image->rows); |
| if (proceed == MagickFalse) |
| break; |
| } |
| offset=row++; |
| q=QueueAuthenticPixels(image,0,offset,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| p=(unsigned char *) stream; |
| switch (image->depth) |
| { |
| case 8: |
| { |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| SetPixelRed(image,ScaleCharToQuantum(*p++),q); |
| SetPixelGreen(image,ScaleCharToQuantum(*p++),q); |
| SetPixelBlue(image,ScaleCharToQuantum(*p++),q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| q+=GetPixelChannels(image); |
| } |
| break; |
| } |
| case 16: |
| { |
| unsigned short |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelRed(image,ScaleShortToQuantum(pixel),q); |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelGreen(image,ScaleShortToQuantum(pixel),q); |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelBlue(image,ScaleShortToQuantum(pixel),q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| q+=GetPixelChannels(image); |
| } |
| break; |
| } |
| case 32: |
| { |
| unsigned int |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelRed(image,ScaleLongToQuantum(pixel),q); |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelGreen(image,ScaleLongToQuantum(pixel),q); |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelBlue(image,ScaleLongToQuantum(pixel),q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| q+=GetPixelChannels(image); |
| } |
| break; |
| } |
| default: |
| { |
| if (image->depth <= 8) |
| { |
| unsigned char |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushCharPixel(p,&pixel); |
| SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q); |
| p=PushCharPixel(p,&pixel); |
| SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),q); |
| p=PushCharPixel(p,&pixel); |
| SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| q+=GetPixelChannels(image); |
| } |
| } |
| else if (image->depth <= 16) |
| { |
| unsigned short |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q); |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),q); |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| q+=GetPixelChannels(image); |
| } |
| } |
| else |
| { |
| unsigned int |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q); |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value),q); |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value),q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| q+=GetPixelChannels(image); |
| } |
| } |
| break; |
| } |
| } |
| sync=SyncAuthenticPixels(image,exception); |
| if (sync == MagickFalse) |
| break; |
| } |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| break; |
| } |
| case '7': |
| { |
| size_t |
| channels; |
| |
| /* |
| Convert PAM raster image to pixel packets. |
| */ |
| switch (quantum_type) |
| { |
| case GrayQuantum: |
| case GrayAlphaQuantum: |
| { |
| channels=1; |
| break; |
| } |
| case CMYKQuantum: |
| case CMYKAQuantum: |
| { |
| channels=4; |
| break; |
| } |
| default: |
| { |
| channels=3; |
| break; |
| } |
| } |
| if (image->alpha_trait != UndefinedPixelTrait) |
| channels++; |
| extent=channels*(image->depth <= 8 ? 1 : image->depth <= 16 ? 2 : 4)* |
| image->columns; |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| ThrowPNMException(ResourceLimitError,"MemoryAllocationFailed"); |
| pixels=GetQuantumPixels(quantum_info); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| MagickBooleanType |
| sync; |
| |
| register const unsigned char |
| *magick_restrict p; |
| |
| register ssize_t |
| x; |
| |
| register Quantum |
| *magick_restrict q; |
| |
| ssize_t |
| offset; |
| |
| stream=ReadBlobStream(image,extent,pixels,&count); |
| if (count != (ssize_t) extent) |
| break; |
| if ((image->progress_monitor != (MagickProgressMonitor) NULL) && |
| (image->previous == (Image *) NULL)) |
| { |
| MagickBooleanType |
| proceed; |
| |
| proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType) |
| row,image->rows); |
| if (proceed == MagickFalse) |
| break; |
| } |
| offset=row++; |
| q=QueueAuthenticPixels(image,0,offset,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| p=(unsigned char *) stream; |
| switch (image->depth) |
| { |
| case 8: |
| case 16: |
| case 32: |
| { |
| (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| quantum_type,(unsigned char *) stream,exception); |
| break; |
| } |
| default: |
| { |
| switch (quantum_type) |
| { |
| case GrayQuantum: |
| case GrayAlphaQuantum: |
| { |
| if (image->depth <= 8) |
| { |
| unsigned char |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushCharPixel(p,&pixel); |
| SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| p=PushCharPixel(p,&pixel); |
| if (image->depth != 1) |
| SetPixelAlpha(image,ScaleAnyToQuantum(pixel, |
| max_value),q); |
| else |
| SetPixelAlpha(image,QuantumRange- |
| ScaleAnyToQuantum(pixel,max_value),q); |
| } |
| q+=GetPixelChannels(image); |
| } |
| } |
| else if (image->depth <= 16) |
| { |
| unsigned short |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelAlpha(image,ScaleAnyToQuantum(pixel, |
| max_value),q); |
| } |
| q+=GetPixelChannels(image); |
| } |
| } |
| else |
| { |
| unsigned int |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelGray(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelAlpha(image,ScaleAnyToQuantum(pixel, |
| max_value),q); |
| } |
| q+=GetPixelChannels(image); |
| } |
| } |
| break; |
| } |
| case CMYKQuantum: |
| case CMYKAQuantum: |
| { |
| if (image->depth <= 8) |
| { |
| unsigned char |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushCharPixel(p,&pixel); |
| SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q); |
| p=PushCharPixel(p,&pixel); |
| SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| p=PushCharPixel(p,&pixel); |
| SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| p=PushCharPixel(p,&pixel); |
| SetPixelBlack(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| p=PushCharPixel(p,&pixel); |
| SetPixelAlpha(image,ScaleAnyToQuantum(pixel, |
| max_value),q); |
| } |
| q+=GetPixelChannels(image); |
| } |
| } |
| else if (image->depth <= 16) |
| { |
| unsigned short |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q); |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelBlack(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelAlpha(image,ScaleAnyToQuantum(pixel, |
| max_value),q); |
| } |
| q+=GetPixelChannels(image); |
| } |
| } |
| else |
| { |
| unsigned int |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelBlack(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelAlpha(image,ScaleAnyToQuantum(pixel, |
| max_value),q); |
| } |
| q+=GetPixelChannels(image); |
| } |
| } |
| break; |
| } |
| default: |
| { |
| if (image->depth <= 8) |
| { |
| unsigned char |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushCharPixel(p,&pixel); |
| SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q); |
| p=PushCharPixel(p,&pixel); |
| SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| p=PushCharPixel(p,&pixel); |
| SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| p=PushCharPixel(p,&pixel); |
| SetPixelAlpha(image,ScaleAnyToQuantum(pixel, |
| max_value),q); |
| } |
| q+=GetPixelChannels(image); |
| } |
| } |
| else if (image->depth <= 16) |
| { |
| unsigned short |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value),q); |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| p=PushShortPixel(MSBEndian,p,&pixel); |
| SetPixelAlpha(image,ScaleAnyToQuantum(pixel, |
| max_value),q); |
| } |
| q+=GetPixelChannels(image); |
| } |
| } |
| else |
| { |
| unsigned int |
| pixel; |
| |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelRed(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelGreen(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelBlue(image,ScaleAnyToQuantum(pixel,max_value), |
| q); |
| SetPixelAlpha(image,OpaqueAlpha,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| p=PushLongPixel(MSBEndian,p,&pixel); |
| SetPixelAlpha(image,ScaleAnyToQuantum(pixel, |
| max_value),q); |
| } |
| q+=GetPixelChannels(image); |
| } |
| } |
| break; |
| } |
| } |
| } |
| } |
| sync=SyncAuthenticPixels(image,exception); |
| if (sync == MagickFalse) |
| break; |
| } |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| SetQuantumImageType(image,quantum_type); |
| break; |
| } |
| case 'F': |
| case 'f': |
| { |
| /* |
| Convert PFM raster image to pixel packets. |
| */ |
| if (format == 'f') |
| (void) SetImageColorspace(image,GRAYColorspace,exception); |
| quantum_type=format == 'f' ? GrayQuantum : RGBQuantum; |
| image->endian=quantum_scale < 0.0 ? LSBEndian : MSBEndian; |
| image->depth=32; |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| ThrowPNMException(ResourceLimitError,"MemoryAllocationFailed"); |
| status=SetQuantumDepth(image,quantum_info,32); |
| if (status == MagickFalse) |
| ThrowPNMException(ResourceLimitError,"MemoryAllocationFailed"); |
| status=SetQuantumFormat(image,quantum_info,FloatingPointQuantumFormat); |
| if (status == MagickFalse) |
| ThrowPNMException(ResourceLimitError,"MemoryAllocationFailed"); |
| SetQuantumScale(quantum_info,(double) QuantumRange*fabs(quantum_scale)); |
| extent=GetQuantumExtent(image,quantum_info,quantum_type); |
| pixels=GetQuantumPixels(quantum_info); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| MagickBooleanType |
| sync; |
| |
| register Quantum |
| *magick_restrict q; |
| |
| ssize_t |
| offset; |
| |
| size_t |
| length; |
| |
| stream=ReadBlobStream(image,extent,pixels,&count); |
| if (count != (ssize_t) extent) |
| break; |
| if ((image->progress_monitor != (MagickProgressMonitor) NULL) && |
| (image->previous == (Image *) NULL)) |
| { |
| MagickBooleanType |
| proceed; |
| |
| proceed=SetImageProgress(image,LoadImageTag,(MagickOffsetType) |
| row,image->rows); |
| if (proceed == MagickFalse) |
| break; |
| } |
| offset=row++; |
| q=QueueAuthenticPixels(image,0,(ssize_t) (image->rows-offset-1), |
| image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| length=ImportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| quantum_type,(unsigned char *) stream,exception); |
| if (length != extent) |
| break; |
| sync=SyncAuthenticPixels(image,exception); |
| if (sync == MagickFalse) |
| break; |
| } |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| SetQuantumImageType(image,quantum_type); |
| break; |
| } |
| default: |
| ThrowPNMException(CorruptImageError,"ImproperImageHeader"); |
| } |
| if (*comment_info.comment != '\0') |
| (void) SetImageProperty(image,"comment",comment_info.comment,exception); |
| comment_info.comment=DestroyString(comment_info.comment); |
| if (y < (ssize_t) image->rows) |
| ThrowPNMException(CorruptImageError,"UnableToReadImageData"); |
| if (EOFBlob(image) != MagickFalse) |
| { |
| (void) ThrowMagickException(exception,GetMagickModule(), |
| CorruptImageError,"UnexpectedEndOfFile","`%s'",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; |
| if ((format == '1') || (format == '2') || (format == '3')) |
| do |
| { |
| /* |
| Skip to end of line. |
| */ |
| count=ReadBlob(image,1,(unsigned char *) &format); |
| if (count != 1) |
| break; |
| if (format == 'P') |
| break; |
| } while (format != '\n'); |
| count=ReadBlob(image,1,(unsigned char *) &format); |
| if ((count == 1) && (format == 'P')) |
| { |
| /* |
| Allocate next image structure. |
| */ |
| AcquireNextImage(image_info,image,exception); |
| if (GetNextImageInList(image) == (Image *) NULL) |
| { |
| status=MagickFalse; |
| break; |
| } |
| image=SyncNextImageInList(image); |
| status=SetImageProgress(image,LoadImagesTag,TellBlob(image), |
| GetBlobSize(image)); |
| if (status == MagickFalse) |
| break; |
| } |
| } while ((count == 1) && (format == 'P')); |
| (void) CloseBlob(image); |
| if (status == MagickFalse) |
| return(DestroyImageList(image)); |
| return(GetFirstImageInList(image)); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e g i s t e r P N M I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % RegisterPNMImage() adds properties for the PNM image format to |
| % the list of supported formats. The properties 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 RegisterPNMImage method is: |
| % |
| % size_t RegisterPNMImage(void) |
| % |
| */ |
| ModuleExport size_t RegisterPNMImage(void) |
| { |
| MagickInfo |
| *entry; |
| |
| entry=AcquireMagickInfo("PNM","PAM","Common 2-dimensional bitmap format"); |
| entry->decoder=(DecodeImageHandler *) ReadPNMImage; |
| entry->encoder=(EncodeImageHandler *) WritePNMImage; |
| entry->mime_type=ConstantString("image/x-portable-pixmap"); |
| entry->flags|=CoderDecoderSeekableStreamFlag; |
| (void) RegisterMagickInfo(entry); |
| entry=AcquireMagickInfo("PNM","PBM", |
| "Portable bitmap format (black and white)"); |
| entry->decoder=(DecodeImageHandler *) ReadPNMImage; |
| entry->encoder=(EncodeImageHandler *) WritePNMImage; |
| entry->mime_type=ConstantString("image/x-portable-bitmap"); |
| entry->flags|=CoderDecoderSeekableStreamFlag; |
| (void) RegisterMagickInfo(entry); |
| entry=AcquireMagickInfo("PNM","PFM","Portable float format"); |
| entry->decoder=(DecodeImageHandler *) ReadPNMImage; |
| entry->encoder=(EncodeImageHandler *) WritePNMImage; |
| entry->flags|=CoderEndianSupportFlag; |
| entry->flags|=CoderDecoderSeekableStreamFlag; |
| (void) RegisterMagickInfo(entry); |
| entry=AcquireMagickInfo("PNM","PGM","Portable graymap format (gray scale)"); |
| entry->decoder=(DecodeImageHandler *) ReadPNMImage; |
| entry->encoder=(EncodeImageHandler *) WritePNMImage; |
| entry->mime_type=ConstantString("image/x-portable-greymap"); |
| entry->flags|=CoderDecoderSeekableStreamFlag; |
| (void) RegisterMagickInfo(entry); |
| entry=AcquireMagickInfo("PNM","PNM","Portable anymap"); |
| entry->decoder=(DecodeImageHandler *) ReadPNMImage; |
| entry->encoder=(EncodeImageHandler *) WritePNMImage; |
| entry->magick=(IsImageFormatHandler *) IsPNM; |
| entry->mime_type=ConstantString("image/x-portable-pixmap"); |
| entry->flags|=CoderDecoderSeekableStreamFlag; |
| (void) RegisterMagickInfo(entry); |
| entry=AcquireMagickInfo("PNM","PPM","Portable pixmap format (color)"); |
| entry->decoder=(DecodeImageHandler *) ReadPNMImage; |
| entry->encoder=(EncodeImageHandler *) WritePNMImage; |
| entry->mime_type=ConstantString("image/x-portable-pixmap"); |
| entry->flags|=CoderDecoderSeekableStreamFlag; |
| (void) RegisterMagickInfo(entry); |
| return(MagickImageCoderSignature); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % U n r e g i s t e r P N M I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % UnregisterPNMImage() removes format registrations made by the |
| % PNM module from the list of supported formats. |
| % |
| % The format of the UnregisterPNMImage method is: |
| % |
| % UnregisterPNMImage(void) |
| % |
| */ |
| ModuleExport void UnregisterPNMImage(void) |
| { |
| (void) UnregisterMagickInfo("PAM"); |
| (void) UnregisterMagickInfo("PBM"); |
| (void) UnregisterMagickInfo("PGM"); |
| (void) UnregisterMagickInfo("PNM"); |
| (void) UnregisterMagickInfo("PPM"); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % W r i t e P N M I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % WritePNMImage() writes an image to a file in the PNM rasterfile format. |
| % |
| % The format of the WritePNMImage method is: |
| % |
| % MagickBooleanType WritePNMImage(const ImageInfo *image_info, |
| % Image *image,ExceptionInfo *exception) |
| % |
| % A description of each parameter follows. |
| % |
| % o image_info: the image info. |
| % |
| % o image: The image. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image, |
| ExceptionInfo *exception) |
| { |
| char |
| buffer[MagickPathExtent], |
| format, |
| magick[MagickPathExtent]; |
| |
| const char |
| *value; |
| |
| MagickBooleanType |
| status; |
| |
| MagickOffsetType |
| scene; |
| |
| Quantum |
| index; |
| |
| QuantumAny |
| pixel; |
| |
| QuantumInfo |
| *quantum_info; |
| |
| QuantumType |
| quantum_type; |
| |
| register unsigned char |
| *q; |
| |
| size_t |
| extent, |
| imageListLength, |
| packet_size; |
| |
| ssize_t |
| count, |
| y; |
| |
| /* |
| Open output image file. |
| */ |
| assert(image_info != (const ImageInfo *) NULL); |
| assert(image_info->signature == MagickCoreSignature); |
| assert(image != (Image *) NULL); |
| assert(image->signature == MagickCoreSignature); |
| if (image->debug != MagickFalse) |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| assert(exception != (ExceptionInfo *) NULL); |
| assert(exception->signature == MagickCoreSignature); |
| status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); |
| if (status == MagickFalse) |
| return(status); |
| scene=0; |
| imageListLength=GetImageListLength(image); |
| do |
| { |
| QuantumAny |
| max_value; |
| |
| /* |
| Write PNM file header. |
| */ |
| packet_size=3; |
| quantum_type=RGBQuantum; |
| (void) CopyMagickString(magick,image_info->magick,MagickPathExtent); |
| max_value=GetQuantumRange(image->depth); |
| switch (magick[1]) |
| { |
| case 'A': |
| case 'a': |
| { |
| format='7'; |
| break; |
| } |
| case 'B': |
| case 'b': |
| { |
| format='4'; |
| if (image_info->compression == NoCompression) |
| format='1'; |
| break; |
| } |
| case 'F': |
| case 'f': |
| { |
| format='F'; |
| if ((image_info->type != TrueColorType) && |
| (SetImageGray(image,exception) != MagickFalse)) |
| format='f'; |
| break; |
| } |
| case 'G': |
| case 'g': |
| { |
| format='5'; |
| if (image_info->compression == NoCompression) |
| format='2'; |
| break; |
| } |
| case 'N': |
| case 'n': |
| { |
| if ((image_info->type != TrueColorType) && |
| (SetImageGray(image,exception) != MagickFalse)) |
| { |
| format='5'; |
| if (image_info->compression == NoCompression) |
| format='2'; |
| if (SetImageMonochrome(image,exception) != MagickFalse) |
| { |
| format='4'; |
| if (image_info->compression == NoCompression) |
| format='1'; |
| } |
| break; |
| } |
| } |
| default: |
| { |
| format='6'; |
| if (image_info->compression == NoCompression) |
| format='3'; |
| break; |
| } |
| } |
| (void) FormatLocaleString(buffer,MagickPathExtent,"P%c\n",format); |
| (void) WriteBlobString(image,buffer); |
| value=GetImageProperty(image,"comment",exception); |
| if (value != (const char *) NULL) |
| { |
| register const char |
| *p; |
| |
| /* |
| Write comments to file. |
| */ |
| (void) WriteBlobByte(image,'#'); |
| for (p=value; *p != '\0'; p++) |
| { |
| (void) WriteBlobByte(image,(unsigned char) *p); |
| if ((*p == '\n') || (*p == '\r')) |
| (void) WriteBlobByte(image,'#'); |
| } |
| (void) WriteBlobByte(image,'\n'); |
| } |
| if (format != '7') |
| { |
| (void) FormatLocaleString(buffer,MagickPathExtent,"%.20g %.20g\n", |
| (double) image->columns,(double) image->rows); |
| (void) WriteBlobString(image,buffer); |
| } |
| else |
| { |
| char |
| type[MagickPathExtent]; |
| |
| /* |
| PAM header. |
| */ |
| (void) FormatLocaleString(buffer,MagickPathExtent, |
| "WIDTH %.20g\nHEIGHT %.20g\n",(double) image->columns,(double) |
| image->rows); |
| (void) WriteBlobString(image,buffer); |
| quantum_type=GetQuantumType(image,exception); |
| switch (quantum_type) |
| { |
| case CMYKQuantum: |
| case CMYKAQuantum: |
| { |
| packet_size=4; |
| (void) CopyMagickString(type,"CMYK",MagickPathExtent); |
| break; |
| } |
| case GrayQuantum: |
| case GrayAlphaQuantum: |
| { |
| packet_size=1; |
| (void) CopyMagickString(type,"GRAYSCALE",MagickPathExtent); |
| if (IdentifyImageMonochrome(image,exception) != MagickFalse) |
| (void) CopyMagickString(type,"BLACKANDWHITE",MagickPathExtent); |
| break; |
| } |
| default: |
| { |
| quantum_type=RGBQuantum; |
| if (image->alpha_trait != UndefinedPixelTrait) |
| quantum_type=RGBAQuantum; |
| packet_size=3; |
| (void) CopyMagickString(type,"RGB",MagickPathExtent); |
| break; |
| } |
| } |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| packet_size++; |
| (void) ConcatenateMagickString(type,"_ALPHA",MagickPathExtent); |
| } |
| if (image->depth > 32) |
| image->depth=32; |
| (void) FormatLocaleString(buffer,MagickPathExtent, |
| "DEPTH %.20g\nMAXVAL %.20g\n",(double) packet_size,(double) |
| ((MagickOffsetType) GetQuantumRange(image->depth))); |
| (void) WriteBlobString(image,buffer); |
| (void) FormatLocaleString(buffer,MagickPathExtent, |
| "TUPLTYPE %s\nENDHDR\n",type); |
| (void) WriteBlobString(image,buffer); |
| } |
| /* |
| Convert runextent encoded to PNM raster pixels. |
| */ |
| switch (format) |
| { |
| case '1': |
| { |
| unsigned char |
| pixels[2048]; |
| |
| /* |
| Convert image to a PBM image. |
| */ |
| (void) SetImageType(image,BilevelType,exception); |
| q=pixels; |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| register const Quantum |
| *magick_restrict p; |
| |
| register ssize_t |
| x; |
| |
| p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
| if (p == (const Quantum *) NULL) |
| break; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| *q++=(unsigned char) (GetPixelLuma(image,p) >= (QuantumRange/2.0) ? |
| '0' : '1'); |
| if ((q-pixels+2) >= (ssize_t) sizeof(pixels)) |
| { |
| *q++='\n'; |
| (void) WriteBlob(image,q-pixels,pixels); |
| q=pixels; |
| } |
| *q++=' '; |
| p+=GetPixelChannels(image); |
| } |
| *q++='\n'; |
| (void) WriteBlob(image,q-pixels,pixels); |
| q=pixels; |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| } |
| if (q != pixels) |
| { |
| *q++='\n'; |
| (void) WriteBlob(image,q-pixels,pixels); |
| } |
| break; |
| } |
| case '2': |
| { |
| unsigned char |
| pixels[2048]; |
| |
| /* |
| Convert image to a PGM image. |
| */ |
| if (image->depth <= 8) |
| (void) WriteBlobString(image,"255\n"); |
| else |
| if (image->depth <= 16) |
| (void) WriteBlobString(image,"65535\n"); |
| else |
| (void) WriteBlobString(image,"4294967295\n"); |
| q=pixels; |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| register const Quantum |
| *magick_restrict p; |
| |
| register ssize_t |
| x; |
| |
| p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
| if (p == (const Quantum *) NULL) |
| break; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| index=ClampToQuantum(GetPixelLuma(image,p)); |
| if (image->depth <= 8) |
| count=(ssize_t) FormatLocaleString(buffer,MagickPathExtent,"%u ", |
| ScaleQuantumToChar(index)); |
| else |
| if (image->depth <= 16) |
| count=(ssize_t) FormatLocaleString(buffer,MagickPathExtent, |
| "%u ",ScaleQuantumToShort(index)); |
| else |
| count=(ssize_t) FormatLocaleString(buffer,MagickPathExtent, |
| "%u ",ScaleQuantumToLong(index)); |
| extent=(size_t) count; |
| if ((q-pixels+extent+1) >= sizeof(pixels)) |
| { |
| *q++='\n'; |
| (void) WriteBlob(image,q-pixels,pixels); |
| q=pixels; |
| } |
| (void) strncpy((char *) q,buffer,extent); |
| q+=extent; |
| p+=GetPixelChannels(image); |
| } |
| *q++='\n'; |
| (void) WriteBlob(image,q-pixels,pixels); |
| q=pixels; |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| } |
| if (q != pixels) |
| { |
| *q++='\n'; |
| (void) WriteBlob(image,q-pixels,pixels); |
| } |
| break; |
| } |
| case '3': |
| { |
| unsigned char |
| pixels[2048]; |
| |
| /* |
| Convert image to a PNM image. |
| */ |
| (void) TransformImageColorspace(image,sRGBColorspace,exception); |
| if (image->depth <= 8) |
| (void) WriteBlobString(image,"255\n"); |
| else |
| if (image->depth <= 16) |
| (void) WriteBlobString(image,"65535\n"); |
| else |
| (void) WriteBlobString(image,"4294967295\n"); |
| q=pixels; |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| register const Quantum |
| *magick_restrict p; |
| |
| register ssize_t |
| x; |
| |
| p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
| if (p == (const Quantum *) NULL) |
| break; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| if (image->depth <= 8) |
| count=(ssize_t) FormatLocaleString(buffer,MagickPathExtent, |
| "%u %u %u ",ScaleQuantumToChar(GetPixelRed(image,p)), |
| ScaleQuantumToChar(GetPixelGreen(image,p)), |
| ScaleQuantumToChar(GetPixelBlue(image,p))); |
| else |
| if (image->depth <= 16) |
| count=(ssize_t) FormatLocaleString(buffer,MagickPathExtent, |
| "%u %u %u ",ScaleQuantumToShort(GetPixelRed(image,p)), |
| ScaleQuantumToShort(GetPixelGreen(image,p)), |
| ScaleQuantumToShort(GetPixelBlue(image,p))); |
| else |
| count=(ssize_t) FormatLocaleString(buffer,MagickPathExtent, |
| "%u %u %u ",ScaleQuantumToLong(GetPixelRed(image,p)), |
| ScaleQuantumToLong(GetPixelGreen(image,p)), |
| ScaleQuantumToLong(GetPixelBlue(image,p))); |
| extent=(size_t) count; |
| if ((q-pixels+extent+2) >= sizeof(pixels)) |
| { |
| *q++='\n'; |
| (void) WriteBlob(image,q-pixels,pixels); |
| q=pixels; |
| } |
| (void) strncpy((char *) q,buffer,extent); |
| q+=extent; |
| p+=GetPixelChannels(image); |
| } |
| *q++='\n'; |
| (void) WriteBlob(image,q-pixels,pixels); |
| q=pixels; |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| } |
| if (q != pixels) |
| { |
| *q++='\n'; |
| (void) WriteBlob(image,q-pixels,pixels); |
| } |
| break; |
| } |
| case '4': |
| { |
| register unsigned char |
| *pixels; |
| |
| /* |
| Convert image to a PBM image. |
| */ |
| (void) SetImageType(image,BilevelType,exception); |
| image->depth=1; |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| SetQuantumMinIsWhite(quantum_info,MagickTrue); |
| (void) SetQuantumEndian(image,quantum_info,MSBEndian); |
| pixels=GetQuantumPixels(quantum_info); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| register const Quantum |
| *magick_restrict p; |
| |
| p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
| if (p == (const Quantum *) NULL) |
| break; |
| extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| GrayQuantum,pixels,exception); |
| count=WriteBlob(image,extent,pixels); |
| if (count != (ssize_t) extent) |
| break; |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| } |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| break; |
| } |
| case '5': |
| { |
| register unsigned char |
| *pixels; |
| |
| /* |
| Convert image to a PGM image. |
| */ |
| if (image->depth > 32) |
| image->depth=32; |
| (void) FormatLocaleString(buffer,MagickPathExtent,"%.20g\n",(double) |
| ((MagickOffsetType) GetQuantumRange(image->depth))); |
| (void) WriteBlobString(image,buffer); |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| (void) SetQuantumEndian(image,quantum_info,MSBEndian); |
| pixels=GetQuantumPixels(quantum_info); |
| extent=GetQuantumExtent(image,quantum_info,GrayQuantum); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| register const Quantum |
| *magick_restrict p; |
| |
| register ssize_t |
| x; |
| |
| p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
| if (p == (const Quantum *) NULL) |
| break; |
| q=pixels; |
| switch (image->depth) |
| { |
| case 8: |
| case 16: |
| case 32: |
| { |
| extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| GrayQuantum,pixels,exception); |
| break; |
| } |
| default: |
| { |
| if (image->depth <= 8) |
| { |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| if (IsPixelGray(image,p) == MagickFalse) |
| pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma( |
| image,p)),max_value); |
| else |
| { |
| if (image->depth == 8) |
| pixel=ScaleQuantumToChar(GetPixelRed(image,p)); |
| else |
| pixel=ScaleQuantumToAny(GetPixelRed(image,p), |
| max_value); |
| } |
| q=PopCharPixel((unsigned char) pixel,q); |
| p+=GetPixelChannels(image); |
| } |
| extent=(size_t) (q-pixels); |
| break; |
| } |
| if (image->depth <= 16) |
| { |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| if (IsPixelGray(image,p) == MagickFalse) |
| pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(image, |
| p)),max_value); |
| else |
| { |
| if (image->depth == 16) |
| pixel=ScaleQuantumToShort(GetPixelRed(image,p)); |
| else |
| pixel=ScaleQuantumToAny(GetPixelRed(image,p), |
| max_value); |
| } |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| p+=GetPixelChannels(image); |
| } |
| extent=(size_t) (q-pixels); |
| break; |
| } |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| if (IsPixelGray(image,p) == MagickFalse) |
| pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(image,p)), |
| max_value); |
| else |
| { |
| if (image->depth == 16) |
| pixel=ScaleQuantumToLong(GetPixelRed(image,p)); |
| else |
| pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value); |
| } |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| p+=GetPixelChannels(image); |
| } |
| extent=(size_t) (q-pixels); |
| break; |
| } |
| } |
| count=WriteBlob(image,extent,pixels); |
| if (count != (ssize_t) extent) |
| break; |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| } |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| break; |
| } |
| case '6': |
| { |
| register unsigned char |
| *pixels; |
| |
| /* |
| Convert image to a PNM image. |
| */ |
| (void) TransformImageColorspace(image,sRGBColorspace,exception); |
| if (image->depth > 32) |
| image->depth=32; |
| (void) FormatLocaleString(buffer,MagickPathExtent,"%.20g\n",(double) |
| ((MagickOffsetType) GetQuantumRange(image->depth))); |
| (void) WriteBlobString(image,buffer); |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| (void) SetQuantumEndian(image,quantum_info,MSBEndian); |
| pixels=GetQuantumPixels(quantum_info); |
| extent=GetQuantumExtent(image,quantum_info,quantum_type); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| register const Quantum |
| *magick_restrict p; |
| |
| register ssize_t |
| x; |
| |
| p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
| if (p == (const Quantum *) NULL) |
| break; |
| q=pixels; |
| switch (image->depth) |
| { |
| case 8: |
| case 16: |
| case 32: |
| { |
| extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| quantum_type,pixels,exception); |
| break; |
| } |
| default: |
| { |
| if (image->depth <= 8) |
| { |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| p+=GetPixelChannels(image); |
| } |
| extent=(size_t) (q-pixels); |
| break; |
| } |
| if (image->depth <= 16) |
| { |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| p+=GetPixelChannels(image); |
| } |
| extent=(size_t) (q-pixels); |
| break; |
| } |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| p+=GetPixelChannels(image); |
| } |
| extent=(size_t) (q-pixels); |
| break; |
| } |
| } |
| count=WriteBlob(image,extent,pixels); |
| if (count != (ssize_t) extent) |
| break; |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| } |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| break; |
| } |
| case '7': |
| { |
| register unsigned char |
| *pixels; |
| |
| /* |
| Convert image to a PAM. |
| */ |
| if (image->depth > 32) |
| image->depth=32; |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| (void) SetQuantumEndian(image,quantum_info,MSBEndian); |
| pixels=GetQuantumPixels(quantum_info); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| register const Quantum |
| *magick_restrict p; |
| |
| register ssize_t |
| x; |
| |
| p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
| if (p == (const Quantum *) NULL) |
| break; |
| q=pixels; |
| switch (image->depth) |
| { |
| case 8: |
| case 16: |
| case 32: |
| { |
| extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| quantum_type,pixels,exception); |
| break; |
| } |
| default: |
| { |
| switch (quantum_type) |
| { |
| case GrayQuantum: |
| case GrayAlphaQuantum: |
| { |
| if (image->depth <= 8) |
| { |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma( |
| image,p)),max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| pixel=(unsigned char) ScaleQuantumToAny( |
| GetPixelAlpha(image,p),max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| } |
| p+=GetPixelChannels(image); |
| } |
| break; |
| } |
| if (image->depth <= 16) |
| { |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma( |
| image,p)),max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| pixel=(unsigned char) ScaleQuantumToAny( |
| GetPixelAlpha(image,p),max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| } |
| p+=GetPixelChannels(image); |
| } |
| break; |
| } |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| pixel=ScaleQuantumToAny(ClampToQuantum(GetPixelLuma(image, |
| p)),max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| pixel=(unsigned char) ScaleQuantumToAny( |
| GetPixelAlpha(image,p),max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| } |
| p+=GetPixelChannels(image); |
| } |
| break; |
| } |
| case CMYKQuantum: |
| case CMYKAQuantum: |
| { |
| if (image->depth <= 8) |
| { |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelGreen(image,p), |
| max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelBlue(image,p), |
| max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelBlack(image,p), |
| max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| pixel=ScaleQuantumToAny(GetPixelAlpha(image,p), |
| max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| } |
| p+=GetPixelChannels(image); |
| } |
| break; |
| } |
| if (image->depth <= 16) |
| { |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelGreen(image,p), |
| max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelBlue(image,p), |
| max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelBlack(image,p), |
| max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| pixel=ScaleQuantumToAny(GetPixelAlpha(image,p), |
| max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| } |
| p+=GetPixelChannels(image); |
| } |
| break; |
| } |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelBlack(image,p),max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| pixel=ScaleQuantumToAny(GetPixelAlpha(image,p), |
| max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| } |
| p+=GetPixelChannels(image); |
| } |
| break; |
| } |
| default: |
| { |
| if (image->depth <= 8) |
| { |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelGreen(image,p), |
| max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelBlue(image,p), |
| max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| pixel=ScaleQuantumToAny(GetPixelAlpha(image,p), |
| max_value); |
| q=PopCharPixel((unsigned char) pixel,q); |
| } |
| p+=GetPixelChannels(image); |
| } |
| break; |
| } |
| if (image->depth <= 16) |
| { |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelGreen(image,p), |
| max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelBlue(image,p), |
| max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| pixel=ScaleQuantumToAny(GetPixelAlpha(image,p), |
| max_value); |
| q=PopShortPixel(MSBEndian,(unsigned short) pixel,q); |
| } |
| p+=GetPixelChannels(image); |
| } |
| break; |
| } |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| pixel=ScaleQuantumToAny(GetPixelRed(image,p),max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelGreen(image,p),max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| pixel=ScaleQuantumToAny(GetPixelBlue(image,p),max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| pixel=ScaleQuantumToAny(GetPixelAlpha(image,p), |
| max_value); |
| q=PopLongPixel(MSBEndian,(unsigned int) pixel,q); |
| } |
| p+=GetPixelChannels(image); |
| } |
| break; |
| } |
| } |
| extent=(size_t) (q-pixels); |
| break; |
| } |
| } |
| count=WriteBlob(image,extent,pixels); |
| if (count != (ssize_t) extent) |
| break; |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| } |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| break; |
| } |
| case 'F': |
| case 'f': |
| { |
| register unsigned char |
| *pixels; |
| |
| (void) WriteBlobString(image,image->endian == LSBEndian ? "-1.0\n" : |
| "1.0\n"); |
| image->depth=32; |
| quantum_type=format == 'f' ? GrayQuantum : RGBQuantum; |
| quantum_info=AcquireQuantumInfo(image_info,image); |
| if (quantum_info == (QuantumInfo *) NULL) |
| ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| status=SetQuantumFormat(image,quantum_info,FloatingPointQuantumFormat); |
| if (status == MagickFalse) |
| ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); |
| pixels=GetQuantumPixels(quantum_info); |
| for (y=(ssize_t) image->rows-1; y >= 0; y--) |
| { |
| register const Quantum |
| *magick_restrict p; |
| |
| p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
| if (p == (const Quantum *) NULL) |
| break; |
| extent=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info, |
| quantum_type,pixels,exception); |
| (void) WriteBlob(image,extent,pixels); |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| } |
| quantum_info=DestroyQuantumInfo(quantum_info); |
| break; |
| } |
| } |
| if (GetNextImageInList(image) == (Image *) NULL) |
| break; |
| image=SyncNextImageInList(image); |
| status=SetImageProgress(image,SaveImagesTag,scene++,imageListLength); |
| if (status == MagickFalse) |
| break; |
| } while (image_info->adjoin != MagickFalse); |
| (void) CloseBlob(image); |
| return(MagickTrue); |
| } |
