forked from openkylin/imagemagick
613 lines
21 KiB
C
613 lines
21 KiB
C
/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% EEEEE X X RRRR %
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% E X X R R %
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% EEE X RRRR %
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% E X X R R %
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% EEEEE X X R R %
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% %
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% %
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% Read/Write High Dynamic-Range (HDR) Image File Format %
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% %
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% Software Design %
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% Cristy %
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% April 2007 %
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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 "magick/studio.h"
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#include "magick/blob.h"
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#include "magick/blob-private.h"
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#include "magick/cache.h"
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#include "magick/exception.h"
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#include "magick/exception-private.h"
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#include "magick/image.h"
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#include "magick/image-private.h"
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#include "magick/list.h"
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#include "magick/magick.h"
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#include "magick/memory_.h"
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#include "magick/option.h"
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#include "magick/pixel-accessor.h"
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#include "magick/property.h"
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#include "magick/quantum-private.h"
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#include "magick/static.h"
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#include "magick/string_.h"
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#include "magick/module.h"
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#include "magick/resource_.h"
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#include "magick/utility.h"
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#if defined(MAGICKCORE_OPENEXR_DELEGATE)
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#include <ImfCRgbaFile.h>
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#if IMF_VERSION_NUMBER > 1
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#include <OpenEXRConfig.h>
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#endif
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/*
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Typedef declaractions.
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*/
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typedef struct _EXRWindowInfo
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{
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int
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max_x,
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max_y,
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min_x,
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min_y;
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} EXRWindowInfo;
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/*
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Forward declarations.
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*/
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static MagickBooleanType
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WriteEXRImage(const ImageInfo *,Image *);
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#endif
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% I s E X R %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% IsEXR() returns MagickTrue if the image format type, identified by the
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% magick string, is EXR.
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%
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% The format of the IsEXR method is:
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%
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% MagickBooleanType IsEXR(const unsigned char *magick,const size_t length)
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%
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% A description of each parameter follows:
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%
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% o magick: compare image format pattern against these bytes.
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%
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% o length: Specifies the length of the magick string.
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%
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*/
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static MagickBooleanType IsEXR(const unsigned char *magick,const size_t length)
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{
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if (length < 4)
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return(MagickFalse);
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if (memcmp(magick,"\166\057\061\001",4) == 0)
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return(MagickTrue);
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return(MagickFalse);
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}
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#if defined(MAGICKCORE_OPENEXR_DELEGATE)
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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 E X R 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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% ReadEXRImage reads an image in the high dynamic-range (HDR) file format
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% developed by Industrial Light & Magic. It allocates the memory necessary
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% for the new Image structure and returns a pointer to the new image.
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%
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% The format of the ReadEXRImage method is:
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%
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% Image *ReadEXRImage(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 *ReadEXRImage(const ImageInfo *image_info,ExceptionInfo *exception)
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{
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const ImfHeader
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*hdr_info;
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EXRWindowInfo
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data_window,
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display_window;
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Image
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*image;
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ImfInputFile
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*file;
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ImfRgba
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*scanline;
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MagickBooleanType
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status;
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PixelPacket
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*q;
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size_t
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columns;
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ssize_t
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y;
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/*
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Open image.
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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);
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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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file=ImfOpenInputFile(image->filename);
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if (file == (ImfInputFile *) NULL)
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{
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ThrowFileException(exception,BlobError,"UnableToOpenBlob",
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ImfErrorMessage());
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image=DestroyImageList(image);
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return((Image *) NULL);
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}
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hdr_info=ImfInputHeader(file);
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ImfHeaderDisplayWindow(hdr_info,&display_window.min_x,&display_window.min_y,
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&display_window.max_x,&display_window.max_y);
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image->columns=(size_t) (display_window.max_x-display_window.min_x+1UL);
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image->rows=(size_t) (display_window.max_y-display_window.min_y+1UL);
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image->matte=MagickTrue;
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(void) SetImageColorspace(image,RGBColorspace);
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image->gamma=1.0;
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if (image_info->ping != MagickFalse)
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{
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(void) ImfCloseInputFile(file);
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(void) CloseBlob(image);
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return(GetFirstImageInList(image));
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}
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status=SetImageExtent(image,image->columns,image->rows);
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if (status == MagickFalse)
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{
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InheritException(exception,&image->exception);
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return(DestroyImageList(image));
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}
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ImfHeaderDataWindow(hdr_info,&data_window.min_x,&data_window.min_y,
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&data_window.max_x,&data_window.max_y);
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columns=(size_t) (data_window.max_x-data_window.min_x+1UL);
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if ((display_window.min_x > data_window.max_x) ||
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(display_window.min_x+(int) image->columns <= data_window.min_x))
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scanline=(ImfRgba *) NULL;
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else
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{
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scanline=(ImfRgba *) AcquireQuantumMemory(columns,sizeof(*scanline));
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if (scanline == (ImfRgba *) NULL)
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{
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(void) ImfCloseInputFile(file);
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image=DestroyImageList(image);
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ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
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}
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}
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for (y=0; y < (ssize_t) image->rows; y++)
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{
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int
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yy;
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ssize_t
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x;
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q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
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if (q == (PixelPacket *) NULL)
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break;
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yy=(int) (display_window.min_y+y);
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if ((yy < data_window.min_y) || (yy > data_window.max_y) ||
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(scanline == (ImfRgba *) NULL))
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{
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for (x=0; x < (ssize_t) image->columns; x++)
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{
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SetPixelRed(q,image->background_color.red);
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SetPixelGreen(q,image->background_color.green);
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SetPixelBlue(q,image->background_color.blue);
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SetPixelOpacity(q,image->background_color.opacity);
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q++;
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}
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if (SyncAuthenticPixels(image,exception) == MagickFalse)
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break;
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continue;
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}
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(void) memset(scanline,0,columns*sizeof(*scanline));
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ImfInputSetFrameBuffer(file,scanline-data_window.min_x-columns*yy,1,
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columns);
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ImfInputReadPixels(file,yy,yy);
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for (x=0; x < (ssize_t) image->columns; x++)
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{
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int
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xx;
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xx=(int) (display_window.min_x+x-data_window.min_x);
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if ((xx < 0) || (display_window.min_x+(int) x > data_window.max_x))
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{
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SetPixelRed(q,image->background_color.red);
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SetPixelGreen(q,image->background_color.green);
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SetPixelBlue(q,image->background_color.blue);
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SetPixelOpacity(q,image->background_color.opacity);
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}
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else
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{
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SetPixelRed(q,ClampToQuantum((MagickRealType) QuantumRange*
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ImfHalfToFloat(scanline[xx].r)));
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SetPixelGreen(q,ClampToQuantum((MagickRealType) QuantumRange*
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ImfHalfToFloat(scanline[xx].g)));
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SetPixelBlue(q,ClampToQuantum((MagickRealType) QuantumRange*
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ImfHalfToFloat(scanline[xx].b)));
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SetPixelAlpha(q,ClampToQuantum((MagickRealType) QuantumRange*
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ImfHalfToFloat(scanline[xx].a)));
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}
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q++;
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}
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if (SyncAuthenticPixels(image,exception) == MagickFalse)
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break;
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}
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scanline=(ImfRgba *) RelinquishMagickMemory(scanline);
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(void) ImfCloseInputFile(file);
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(void) CloseBlob(image);
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return(GetFirstImageInList(image));
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}
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#endif
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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 g i s t e r E X R 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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% RegisterEXRImage() adds properties for the EXR image format
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% to the list of supported formats. The properties include the image format
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% tag, a method to read and/or write the format, whether the format
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% supports the saving of more than one frame to the same file or blob,
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% whether the format supports native in-memory I/O, and a brief
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% description of the format.
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%
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% The format of the RegisterEXRImage method is:
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%
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% size_t RegisterEXRImage(void)
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%
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*/
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ModuleExport size_t RegisterEXRImage(void)
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{
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char
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version[MagickPathExtent];
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MagickInfo
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*entry;
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*version='\0';
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entry=SetMagickInfo("EXR");
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#if defined(MAGICKCORE_OPENEXR_DELEGATE)
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entry->decoder=(DecodeImageHandler *) ReadEXRImage;
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entry->encoder=(EncodeImageHandler *) WriteEXRImage;
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#if defined( OPENEXR_PACKAGE_STRING)
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(void) FormatLocaleString(version,MagickPathExtent,OPENEXR_PACKAGE_STRING);
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#endif
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#endif
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entry->magick=(IsImageFormatHandler *) IsEXR;
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if (*version != '\0')
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entry->version=ConstantString(version);
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entry->adjoin=MagickFalse;
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entry->description=ConstantString("High Dynamic-range (HDR)");
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entry->blob_support=MagickFalse;
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entry->seekable_stream=MagickTrue;
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entry->magick_module=ConstantString("EXR");
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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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% %
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% U n r e g i s t e r E X R 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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% UnregisterEXRImage() removes format registrations made by the
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% EXR module from the list of supported formats.
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%
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% The format of the UnregisterEXRImage method is:
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%
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% UnregisterEXRImage(void)
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%
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*/
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ModuleExport void UnregisterEXRImage(void)
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{
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(void) UnregisterMagickInfo("EXR");
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}
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#if defined(MAGICKCORE_OPENEXR_DELEGATE)
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% W r i t e E X R 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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% WriteEXRImage() writes an image to a file the in the high dynamic-range
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% (HDR) file format developed by Industrial Light & Magic.
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%
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% The format of the WriteEXRImage method is:
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%
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% MagickBooleanType WriteEXRImage(const ImageInfo *image_info,Image *image)
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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 image: The image.
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%
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*/
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static MagickBooleanType WriteEXRImage(const ImageInfo *image_info,Image *image)
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{
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const char
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*sampling_factor,
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*value;
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ImageInfo
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*write_info;
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ImfHalf
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half_quantum;
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ImfHeader
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*hdr_info;
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ImfOutputFile
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*file;
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ImfRgba
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*scanline;
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int
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channels,
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compression,
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factors[3];
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MagickBooleanType
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status;
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const PixelPacket
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*p;
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ssize_t
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x;
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ssize_t
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y;
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/*
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Open output 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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assert(image != (Image *) NULL);
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assert(image->signature == MagickCoreSignature);
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if (image->debug != MagickFalse)
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(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
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status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
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if (status == MagickFalse)
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return(status);
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(void) SetImageColorspace(image,RGBColorspace);
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write_info=CloneImageInfo(image_info);
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(void) AcquireUniqueFilename(write_info->filename);
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hdr_info=ImfNewHeader();
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ImfHeaderSetDataWindow(hdr_info,0,0,(int) image->columns-1,(int)
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image->rows-1);
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ImfHeaderSetDisplayWindow(hdr_info,0,0,(int) image->columns-1,(int)
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image->rows-1);
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compression=IMF_NO_COMPRESSION;
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if (write_info->compression == ZipSCompression)
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compression=IMF_ZIPS_COMPRESSION;
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if (write_info->compression == ZipCompression)
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compression=IMF_ZIP_COMPRESSION;
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if (write_info->compression == PizCompression)
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compression=IMF_PIZ_COMPRESSION;
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if (write_info->compression == Pxr24Compression)
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compression=IMF_PXR24_COMPRESSION;
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#if defined(B44Compression)
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if (write_info->compression == B44Compression)
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compression=IMF_B44_COMPRESSION;
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#endif
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#if defined(B44ACompression)
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if (write_info->compression == B44ACompression)
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compression=IMF_B44A_COMPRESSION;
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#endif
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channels=0;
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value=GetImageOption(image_info,"exr:color-type");
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if (value != (const char *) NULL)
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{
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if (LocaleCompare(value,"RGB") == 0)
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channels=IMF_WRITE_RGB;
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else if (LocaleCompare(value,"RGBA") == 0)
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channels=IMF_WRITE_RGBA;
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else if (LocaleCompare(value,"YC") == 0)
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channels=IMF_WRITE_YC;
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else if (LocaleCompare(value,"YCA") == 0)
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channels=IMF_WRITE_YCA;
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else if (LocaleCompare(value,"Y") == 0)
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channels=IMF_WRITE_Y;
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else if (LocaleCompare(value,"YA") == 0)
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channels=IMF_WRITE_YA;
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else if (LocaleCompare(value,"R") == 0)
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channels=IMF_WRITE_R;
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else if (LocaleCompare(value,"G") == 0)
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channels=IMF_WRITE_G;
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else if (LocaleCompare(value,"B") == 0)
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channels=IMF_WRITE_B;
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else if (LocaleCompare(value,"A") == 0)
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channels=IMF_WRITE_A;
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else
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(void) ThrowMagickException(&image->exception,GetMagickModule(),
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CoderWarning,"ignoring invalid defined exr:color-type","=%s",value);
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}
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sampling_factor=(const char *) NULL;
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factors[0]=0;
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if (image_info->sampling_factor != (char *) NULL)
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sampling_factor=image_info->sampling_factor;
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if (sampling_factor != NULL)
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{
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/*
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Sampling factors, valid values are 1x1 or 2x2.
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*/
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if (sscanf(sampling_factor,"%d:%d:%d",factors,factors+1,factors+2) == 3)
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{
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if ((factors[0] == factors[1]) && (factors[1] == factors[2]))
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factors[0]=1;
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else
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if ((factors[0] == (2*factors[1])) && (factors[2] == 0))
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factors[0]=2;
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}
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else
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||
if (sscanf(sampling_factor,"%dx%d",factors,factors+1) == 2)
|
||
{
|
||
if (factors[0] != factors[1])
|
||
factors[0]=0;
|
||
}
|
||
if ((factors[0] != 1) && (factors[0] != 2))
|
||
(void) ThrowMagickException(&image->exception,GetMagickModule(),
|
||
CoderWarning,"ignoring sampling-factor","=%s",sampling_factor);
|
||
else if (channels != 0)
|
||
{
|
||
/*
|
||
Cross check given color type and subsampling.
|
||
*/
|
||
factors[1]=((channels == IMF_WRITE_YCA) ||
|
||
(channels == IMF_WRITE_YC)) ? 2 : 1;
|
||
if (factors[0] != factors[1])
|
||
(void) ThrowMagickException(&image->exception,GetMagickModule(),
|
||
CoderWarning,"sampling-factor and color type mismatch","=%s",
|
||
sampling_factor);
|
||
}
|
||
}
|
||
if (channels == 0)
|
||
{
|
||
/*
|
||
If no color type given, select it now.
|
||
*/
|
||
if (factors[0] == 2)
|
||
channels=image->matte ? IMF_WRITE_YCA : IMF_WRITE_YC;
|
||
else
|
||
channels=image->matte ? IMF_WRITE_RGBA : IMF_WRITE_RGB;
|
||
}
|
||
ImfHeaderSetCompression(hdr_info,compression);
|
||
ImfHeaderSetLineOrder(hdr_info,IMF_INCREASING_Y);
|
||
file=ImfOpenOutputFile(write_info->filename,hdr_info,channels);
|
||
ImfDeleteHeader(hdr_info);
|
||
if (file == (ImfOutputFile *) NULL)
|
||
{
|
||
(void) RelinquishUniqueFileResource(write_info->filename);
|
||
write_info=DestroyImageInfo(write_info);
|
||
ThrowFileException(&image->exception,BlobError,"UnableToOpenBlob",
|
||
ImfErrorMessage());
|
||
return(MagickFalse);
|
||
}
|
||
scanline=(ImfRgba *) AcquireQuantumMemory(image->columns,sizeof(*scanline));
|
||
if (scanline == (ImfRgba *) NULL)
|
||
{
|
||
(void) ImfCloseOutputFile(file);
|
||
(void) RelinquishUniqueFileResource(write_info->filename);
|
||
write_info=DestroyImageInfo(write_info);
|
||
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
|
||
}
|
||
memset(scanline,0,image->columns*sizeof(*scanline));
|
||
for (y=0; y < (ssize_t) image->rows; y++)
|
||
{
|
||
p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
|
||
if (p == (const PixelPacket *) NULL)
|
||
break;
|
||
for (x=0; x < (ssize_t) image->columns; x++)
|
||
{
|
||
ImfFloatToHalf(QuantumScale*GetPixelRed(p),&half_quantum);
|
||
scanline[x].r=half_quantum;
|
||
ImfFloatToHalf(QuantumScale*GetPixelGreen(p),&half_quantum);
|
||
scanline[x].g=half_quantum;
|
||
ImfFloatToHalf(QuantumScale*GetPixelBlue(p),&half_quantum);
|
||
scanline[x].b=half_quantum;
|
||
if (image->matte == MagickFalse)
|
||
ImfFloatToHalf(1.0,&half_quantum);
|
||
else
|
||
ImfFloatToHalf(1.0-QuantumScale*GetPixelOpacity(p),&half_quantum);
|
||
scanline[x].a=half_quantum;
|
||
p++;
|
||
}
|
||
ImfOutputSetFrameBuffer(file,scanline-(y*image->columns),1,image->columns);
|
||
ImfOutputWritePixels(file,1);
|
||
}
|
||
(void) ImfCloseOutputFile(file);
|
||
scanline=(ImfRgba *) RelinquishMagickMemory(scanline);
|
||
(void) FileToImage(image,write_info->filename);
|
||
(void) RelinquishUniqueFileResource(write_info->filename);
|
||
write_info=DestroyImageInfo(write_info);
|
||
(void) CloseBlob(image);
|
||
return(MagickTrue);
|
||
}
|
||
#endif
|