/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % AAA AAA IIIII % % A A A A I % % AAAAA AAAAA I % % A A A A I % % A A A A IIIII % % % % % % Read/Write AAI X Image Format % % % % Software Design % % Cristy % % July 1992 % % % % % % Copyright 1999-2021 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/blob.h" #include "MagickCore/blob-private.h" #include "MagickCore/cache.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/monitor.h" #include "MagickCore/monitor-private.h" #include "MagickCore/pixel.h" #include "MagickCore/pixel-accessor.h" #include "MagickCore/quantum-private.h" #include "MagickCore/static.h" #include "MagickCore/string_.h" #include "MagickCore/module.h" /* Forward declarations. */ static MagickBooleanType WriteAAIImage(const ImageInfo *,Image *,ExceptionInfo *); /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e a d A A I I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % ReadAAIImage() reads an AAI Dune 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 ReadAAIImage method is: % % Image *ReadAAIImage(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 *ReadAAIImage(const ImageInfo *image_info,ExceptionInfo *exception) { Image *image; MagickBooleanType status; ssize_t x; Quantum *q; unsigned char *p; size_t height, length, width; ssize_t count, 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 AAI Dune image. */ width=ReadBlobLSBLong(image); height=ReadBlobLSBLong(image); if (EOFBlob(image) != MagickFalse) ThrowReaderException(CorruptImageError,"ImproperImageHeader"); if ((width == 0UL) || (height == 0UL)) ThrowReaderException(CorruptImageError,"ImproperImageHeader"); do { /* Convert AAI raster image to pixel packets. */ image->columns=width; image->rows=height; image->depth=8; if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0)) if (image->scene >= (image_info->scene+image_info->number_scenes-1)) break; status=SetImageExtent(image,image->columns,image->rows,exception); if (status == MagickFalse) return(DestroyImageList(image)); pixels=(unsigned char *) AcquireQuantumMemory(image->columns, 4*sizeof(*pixels)); if (pixels == (unsigned char *) NULL) ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed"); length=(size_t) 4*image->columns; for (y=0; y < (ssize_t) image->rows; y++) { count=ReadBlob(image,length,pixels); if (count != (ssize_t) length) { pixels=(unsigned char *) RelinquishMagickMemory(pixels); ThrowReaderException(CorruptImageError,"UnableToReadImageData"); } p=pixels; q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); if (q == (Quantum *) NULL) break; for (x=0; x < (ssize_t) image->columns; x++) { SetPixelBlue(image,ScaleCharToQuantum(*p++),q); SetPixelGreen(image,ScaleCharToQuantum(*p++),q); SetPixelRed(image,ScaleCharToQuantum(*p++),q); if (*p == 254) *p=255; SetPixelAlpha(image,ScaleCharToQuantum(*p++),q); if (GetPixelAlpha(image,q) != OpaqueAlpha) image->alpha_trait=BlendPixelTrait; 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; } } pixels=(unsigned char *) RelinquishMagickMemory(pixels); 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; width=ReadBlobLSBLong(image); height=ReadBlobLSBLong(image); if ((width != 0UL) && (height != 0UL)) { /* 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 ((width != 0UL) && (height != 0UL)); (void) CloseBlob(image); if (status == MagickFalse) return(DestroyImageList(image)); return(GetFirstImageInList(image)); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e g i s t e r A A I I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % RegisterAAIImage() adds attributes for the AAI Dune image format to the list % of supported formats. The attributes include the image format tag, a % method to read and/or write the format, whether the format supports the % saving of more than one frame to the same file or blob, whether the format % supports native in-memory I/O, and a brief description of the format. % % The format of the RegisterAAIImage method is: % % size_t RegisterAAIImage(void) % */ ModuleExport size_t RegisterAAIImage(void) { MagickInfo *entry; entry=AcquireMagickInfo("AAI","AAI","AAI Dune image"); entry->decoder=(DecodeImageHandler *) ReadAAIImage; entry->encoder=(EncodeImageHandler *) WriteAAIImage; (void) RegisterMagickInfo(entry); return(MagickImageCoderSignature); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % U n r e g i s t e r A A I I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % UnregisterAAIImage() removes format registrations made by the % AAI module from the list of supported formats. % % The format of the UnregisterAAIImage method is: % % UnregisterAAIImage(void) % */ ModuleExport void UnregisterAAIImage(void) { (void) UnregisterMagickInfo("AAI"); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % W r i t e A A I I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % WriteAAIImage() writes an image to a file in AAI Dune image format. % % The format of the WriteAAIImage method is: % % MagickBooleanType WriteAAIImage(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 WriteAAIImage(const ImageInfo *image_info,Image *image, ExceptionInfo *exception) { MagickBooleanType status; MagickOffsetType scene; const Quantum *magick_restrict p; ssize_t x; unsigned char *magick_restrict q; size_t imageListLength; ssize_t count, y; unsigned char *pixels; /* 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 { /* Write AAI header. */ (void) TransformImageColorspace(image,sRGBColorspace,exception); (void) WriteBlobLSBLong(image,(unsigned int) image->columns); (void) WriteBlobLSBLong(image,(unsigned int) image->rows); /* Allocate memory for pixels. */ pixels=(unsigned char *) AcquireQuantumMemory(image->columns, 4*sizeof(*pixels)); if (pixels == (unsigned char *) NULL) ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); /* Convert MIFF to AAI raster pixels. */ for (y=0; y < (ssize_t) image->rows; y++) { p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; q=pixels; for (x=0; x < (ssize_t) image->columns; x++) { *q++=ScaleQuantumToChar(GetPixelBlue(image,p)); *q++=ScaleQuantumToChar(GetPixelGreen(image,p)); *q++=ScaleQuantumToChar(GetPixelRed(image,p)); *q=ScaleQuantumToChar((Quantum) (image->alpha_trait != UndefinedPixelTrait ? GetPixelAlpha(image,p) : OpaqueAlpha)); if (*q == 255) *q=254; p+=GetPixelChannels(image); q++; } count=WriteBlob(image,(size_t) (q-pixels),pixels); if (count != (ssize_t) (q-pixels)) break; if (image->previous == (Image *) NULL) { status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, image->rows); if (status == MagickFalse) break; } } pixels=(unsigned char *) RelinquishMagickMemory(pixels); 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); }