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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% AAA V V SSSSS %
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% A A V V SS %
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% AAAAA V V SSS %
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% A A V V SS %
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% A A V SSSSS %
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% %
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% %
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% Read/Write AVS X Image Format %
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% %
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% Software Design %
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% Cristy %
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% July 1992 %
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% %
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% %
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% Copyright 1999-2021 ImageMagick Studio LLC, a non-profit organization %
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% dedicated to making software imaging solutions freely available. %
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% %
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% You may not use this file except in compliance with the License. You may %
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% obtain a copy of the License at %
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% %
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% https://imagemagick.org/script/license.php %
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% %
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% Unless required by applicable law or agreed to in writing, software %
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% distributed under the License is distributed on an "AS IS" BASIS, %
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% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
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% See the License for the specific language governing permissions and %
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% limitations under the License. %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%
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*/
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/*
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Include declarations.
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*/
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#include "MagickCore/studio.h"
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#include "MagickCore/blob.h"
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#include "MagickCore/blob-private.h"
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#include "MagickCore/cache.h"
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#include "MagickCore/colorspace.h"
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#include "MagickCore/colorspace-private.h"
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#include "MagickCore/exception.h"
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#include "MagickCore/exception-private.h"
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#include "MagickCore/image.h"
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#include "MagickCore/image-private.h"
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#include "MagickCore/list.h"
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#include "MagickCore/magick.h"
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#include "MagickCore/memory_.h"
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#include "MagickCore/monitor.h"
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#include "MagickCore/monitor-private.h"
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#include "MagickCore/pixel-accessor.h"
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#include "MagickCore/quantum-private.h"
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#include "MagickCore/static.h"
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#include "MagickCore/string_.h"
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#include "MagickCore/module.h"
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/*
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Forward declarations.
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*/
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static MagickBooleanType
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WriteAVSImage(const ImageInfo *,Image *,ExceptionInfo *);
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% R e a d A V S I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% ReadAVSImage() reads an AVS X image file and returns it. It
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% allocates the memory necessary for the new Image structure and returns a
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% pointer to the new image.
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%
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% The format of the ReadAVSImage method is:
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%
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% Image *ReadAVSImage(const ImageInfo *image_info,ExceptionInfo *exception)
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%
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% A description of each parameter follows:
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%
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% o image_info: the image info.
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%
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% o exception: return any errors or warnings in this structure.
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%
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*/
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static Image *ReadAVSImage(const ImageInfo *image_info,ExceptionInfo *exception)
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{
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Image
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*image;
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MagickBooleanType
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status;
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MemoryInfo
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*pixel_info;
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Quantum
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*q;
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ssize_t
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x;
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unsigned char
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*p;
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size_t
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height,
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length,
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width;
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ssize_t
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count,
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y;
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unsigned char
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*pixels;
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/*
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Open image file.
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*/
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assert(image_info != (const ImageInfo *) NULL);
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assert(image_info->signature == MagickCoreSignature);
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if (image_info->debug != MagickFalse)
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(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
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image_info->filename);
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assert(exception != (ExceptionInfo *) NULL);
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assert(exception->signature == MagickCoreSignature);
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image=AcquireImage(image_info,exception);
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status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
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if (status == MagickFalse)
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{
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image=DestroyImageList(image);
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return((Image *) NULL);
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}
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/*
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Read AVS X image.
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*/
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width=ReadBlobMSBLong(image);
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height=ReadBlobMSBLong(image);
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if (EOFBlob(image) != MagickFalse)
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ThrowReaderException(CorruptImageError,"ImproperImageHeader");
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if ((width == 0UL) || (height == 0UL))
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ThrowReaderException(CorruptImageError,"ImproperImageHeader");
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do
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|
{
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/*
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Convert AVS raster image to pixel packets.
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|
*/
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image->columns=width;
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image->rows=height;
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image->depth=8;
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image->alpha_trait=BlendPixelTrait;
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if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
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if (image->scene >= (image_info->scene+image_info->number_scenes-1))
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break;
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status=SetImageExtent(image,image->columns,image->rows,exception);
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if (status == MagickFalse)
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return(DestroyImageList(image));
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pixel_info=AcquireVirtualMemory(image->columns,4*sizeof(*pixels));
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if (pixel_info == (MemoryInfo *) NULL)
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ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
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pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
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length=(size_t) 4*image->columns;
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for (y=0; y < (ssize_t) image->rows; y++)
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{
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count=ReadBlob(image,length,pixels);
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if ((size_t) count != length)
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{
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pixel_info=RelinquishVirtualMemory(pixel_info);
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ThrowReaderException(CorruptImageError,"UnableToReadImageData");
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}
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p=pixels;
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q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
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if (q == (Quantum *) NULL)
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break;
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for (x=0; x < (ssize_t) image->columns; x++)
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{
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SetPixelAlpha(image,ScaleCharToQuantum(*p++),q);
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SetPixelRed(image,ScaleCharToQuantum(*p++),q);
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SetPixelGreen(image,ScaleCharToQuantum(*p++),q);
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SetPixelBlue(image,ScaleCharToQuantum(*p++),q);
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q+=GetPixelChannels(image);
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}
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if (SyncAuthenticPixels(image,exception) == MagickFalse)
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break;
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if (image->previous == (Image *) NULL)
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{
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status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
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image->rows);
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if (status == MagickFalse)
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break;
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}
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}
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pixel_info=RelinquishVirtualMemory(pixel_info);
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if (EOFBlob(image) != MagickFalse)
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{
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ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
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image->filename);
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break;
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}
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/*
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Proceed to next image.
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*/
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if (image_info->number_scenes != 0)
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if (image->scene >= (image_info->scene+image_info->number_scenes-1))
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break;
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width=ReadBlobMSBLong(image);
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height=ReadBlobMSBLong(image);
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if ((width != 0UL) && (height != 0UL))
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{
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/*
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Allocate next image structure.
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*/
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AcquireNextImage(image_info,image,exception);
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if (GetNextImageInList(image) == (Image *) NULL)
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{
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status=MagickFalse;
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break;
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}
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image=SyncNextImageInList(image);
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status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
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GetBlobSize(image));
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if (status == MagickFalse)
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break;
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}
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} while ((width != 0UL) && (height != 0UL));
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|
(void) CloseBlob(image);
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if (status == MagickFalse)
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return(DestroyImageList(image));
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return(GetFirstImageInList(image));
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}
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/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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|
|
% %
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% %
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% %
|
|
|
% R e g i s t e r A V S I m a g e %
|
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% %
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% %
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% %
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|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% RegisterAVSImage() adds attributes for the AVS X image format to the list
|
|
|
% of supported formats. The attributes include the image format tag, a
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|
|
% method to read and/or write the format, whether the format supports the
|
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|
% saving of more than one frame to the same file or blob, whether the format
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|
|
% supports native in-memory I/O, and a brief description of the format.
|
|
|
%
|
|
|
% The format of the RegisterAVSImage method is:
|
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|
%
|
|
|
% size_t RegisterAVSImage(void)
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|
%
|
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|
*/
|
|
|
ModuleExport size_t RegisterAVSImage(void)
|
|
|
{
|
|
|
MagickInfo
|
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|
*entry;
|
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|
|
entry=AcquireMagickInfo("AVS","AVS","AVS X image");
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|
entry->decoder=(DecodeImageHandler *) ReadAVSImage;
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|
entry->encoder=(EncodeImageHandler *) WriteAVSImage;
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|
(void) RegisterMagickInfo(entry);
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|
return(MagickImageCoderSignature);
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|
}
|
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|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
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|
% %
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% %
|
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% %
|
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|
% U n r e g i s t e r A V S I m a g e %
|
|
|
% %
|
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|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% UnregisterAVSImage() removes format registrations made by the
|
|
|
% AVS module from the list of supported formats.
|
|
|
%
|
|
|
% The format of the UnregisterAVSImage method is:
|
|
|
%
|
|
|
% UnregisterAVSImage(void)
|
|
|
%
|
|
|
*/
|
|
|
ModuleExport void UnregisterAVSImage(void)
|
|
|
{
|
|
|
(void) UnregisterMagickInfo("AVS");
|
|
|
}
|
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|
|
|
/*
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
% %
|
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|
% %
|
|
|
% %
|
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|
% W r i t e A V S I m a g e %
|
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|
% %
|
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|
% %
|
|
|
% %
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
%
|
|
|
% WriteAVSImage() writes an image to a file in AVS X image format.
|
|
|
%
|
|
|
% The format of the WriteAVSImage method is:
|
|
|
%
|
|
|
% MagickBooleanType WriteAVSImage(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 WriteAVSImage(const ImageInfo *image_info,Image *image,
|
|
|
ExceptionInfo *exception)
|
|
|
{
|
|
|
MagickBooleanType
|
|
|
status;
|
|
|
|
|
|
MagickOffsetType
|
|
|
scene;
|
|
|
|
|
|
MemoryInfo
|
|
|
*pixel_info;
|
|
|
|
|
|
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 AVS header.
|
|
|
*/
|
|
|
(void) TransformImageColorspace(image,sRGBColorspace,exception);
|
|
|
(void) WriteBlobMSBLong(image,(unsigned int) image->columns);
|
|
|
(void) WriteBlobMSBLong(image,(unsigned int) image->rows);
|
|
|
/*
|
|
|
Allocate memory for pixels.
|
|
|
*/
|
|
|
pixel_info=AcquireVirtualMemory(image->columns,4*sizeof(*pixels));
|
|
|
if (pixel_info == (MemoryInfo *) NULL)
|
|
|
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
|
|
|
pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);
|
|
|
/*
|
|
|
Convert MIFF to AVS 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((Quantum) (image->alpha_trait ==
|
|
|
BlendPixelTrait ? GetPixelAlpha(image,p) : OpaqueAlpha));
|
|
|
*q++=ScaleQuantumToChar(GetPixelRed(image,p));
|
|
|
*q++=ScaleQuantumToChar(GetPixelGreen(image,p));
|
|
|
*q++=ScaleQuantumToChar(GetPixelBlue(image,p));
|
|
|
p+=GetPixelChannels(image);
|
|
|
}
|
|
|
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;
|
|
|
}
|
|
|
}
|
|
|
pixel_info=RelinquishVirtualMemory(pixel_info);
|
|
|
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);
|
|
|
}
|
