/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % W r i t e E X R I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % WriteEXRImage() writes an image to a file the in the high dynamic-range % (HDR) file format developed by Industrial Light & Magic. % % The format of the WriteEXRImage method is: % % MagickBooleanType WriteEXRImage(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 WriteEXRImage(const ImageInfo *image_info,Image *image, ExceptionInfo *exception) { ImageInfo *write_info; ImfHalf half_quantum; ImfHeader *hdr_info; ImfOutputFile *file; ImfRgba *scanline; int compression; MagickBooleanType status; register const Quantum *p; register ssize_t x; ssize_t y; /* Open output image file. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); assert(image != (Image *) NULL); assert(image->signature == MagickSignature); if (image->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); assert(exception != (ExceptionInfo *) NULL); assert(exception->signature == MagickSignature); status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); if (status == MagickFalse) return(status); write_info=CloneImageInfo(image_info); (void) AcquireUniqueFilename(write_info->filename); hdr_info=ImfNewHeader(); ImfHeaderSetDataWindow(hdr_info,0,0,(int) image->columns-1,(int) image->rows-1); ImfHeaderSetDisplayWindow(hdr_info,0,0,(int) image->columns-1,(int) image->rows-1); compression=IMF_NO_COMPRESSION; if (write_info->compression == ZipSCompression) compression=IMF_ZIPS_COMPRESSION; if (write_info->compression == ZipCompression) compression=IMF_ZIP_COMPRESSION; if (write_info->compression == PizCompression) compression=IMF_PIZ_COMPRESSION; if (write_info->compression == Pxr24Compression) compression=IMF_PXR24_COMPRESSION; #if defined(B44Compression) if (write_info->compression == B44Compression) compression=IMF_B44_COMPRESSION; #endif #if defined(B44ACompression) if (write_info->compression == B44ACompression) compression=IMF_B44A_COMPRESSION; #endif ImfHeaderSetCompression(hdr_info,compression); ImfHeaderSetLineOrder(hdr_info,IMF_INCREASING_Y); file=ImfOpenOutputFile(write_info->filename,hdr_info,IMF_WRITE_RGBA); ImfDeleteHeader(hdr_info); if (file == (ImfOutputFile *) NULL) { ThrowFileException(exception,BlobError,"UnableToOpenBlob", ImfErrorMessage()); write_info=DestroyImageInfo(write_info); return(MagickFalse); } scanline=(ImfRgba *) AcquireQuantumMemory(image->columns,sizeof(*scanline)); if (scanline == (ImfRgba *) NULL) { (void) ImfCloseOutputFile(file); ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); } for (y=0; y < (ssize_t) image->rows; y++) { p=GetVirtualPixels(image,0,y,image->columns,1,exception); if (p == (const Quantum *) NULL) break; for (x=0; x < (ssize_t) image->columns; x++) { ImfFloatToHalf(QuantumScale*GetPixelRed(image,p),&half_quantum); scanline[x].r=half_quantum; ImfFloatToHalf(QuantumScale*GetPixelGreen(image,p),&half_quantum); scanline[x].g=half_quantum; ImfFloatToHalf(QuantumScale*GetPixelBlue(image,p),&half_quantum); scanline[x].b=half_quantum; if (image->matte == MagickFalse) ImfFloatToHalf(1.0,&half_quantum); else ImfFloatToHalf(QuantumScale*GetPixelAlpha(image,p),&half_quantum); scanline[x].a=half_quantum; p+=GetPixelChannels(image); } 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,exception); (void) RelinquishUniqueFileResource(write_info->filename); write_info=DestroyImageInfo(write_info); (void) CloseBlob(image); return(MagickTrue); }
/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % W r i t e E X R I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % WriteEXRImage() writes an image to a file the in the high dynamic-range % (HDR) file format developed by Industrial Light & Magic. % % The format of the WriteEXRImage method is: % % MagickBooleanType WriteEXRImage(const ImageInfo *image_info,Image *image) % % A description of each parameter follows. % % o image_info: the image info. % % o image: The image. % */ static MagickBooleanType WriteEXRImage(const ImageInfo *image_info,Image *image) { ImageInfo *write_info; ImfHalf half_quantum; ImfHeader *hdr_info; ImfOutputFile *file; ImfRgba *scanline; long y; MagickBooleanType status; register const PixelPacket *p; register long x; /* Open output image file. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); assert(image != (Image *) NULL); assert(image->signature == MagickSignature); if (image->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception); if (status == MagickFalse) return(status); write_info=CloneImageInfo(image_info); (void) AcquireUniqueFilename(write_info->filename); hdr_info=ImfNewHeader(); ImfHeaderSetDataWindow(hdr_info,0,0,(int) image->columns-1,(int) image->rows-1); ImfHeaderSetDisplayWindow(hdr_info,0,0,(int) image->columns-1,(int) image->rows-1); ImfHeaderSetCompression(hdr_info,write_info->compression == NoCompression ? IMF_NO_COMPRESSION : IMF_PIZ_COMPRESSION); ImfHeaderSetLineOrder(hdr_info,IMF_INCREASING_Y); file=ImfOpenOutputFile(write_info->filename,hdr_info,IMF_WRITE_RGBA); ImfDeleteHeader(hdr_info); if (file == (ImfOutputFile *) NULL) { ThrowFileException(&image->exception,BlobError,"UnableToOpenBlob", ImfErrorMessage()); write_info=DestroyImageInfo(write_info); return(MagickFalse); } scanline=(ImfRgba *) AcquireQuantumMemory(image->columns,sizeof(*scanline)); if (scanline == (ImfRgba *) NULL) { (void) ImfCloseOutputFile(file); ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); } for (y=0; y < (long) image->rows; y++) { p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception); if (p == (const PixelPacket *) NULL) break; for (x=0; x < (long) image->columns; x++) { ImfFloatToHalf(QuantumScale*p->red,&half_quantum); scanline[x].r=half_quantum; ImfFloatToHalf(QuantumScale*p->green,&half_quantum); scanline[x].g=half_quantum; ImfFloatToHalf(QuantumScale*p->blue,&half_quantum); scanline[x].b=half_quantum; if (image->matte == MagickFalse) ImfFloatToHalf(1.0,&half_quantum); else ImfFloatToHalf(1.0-QuantumScale*p->opacity,&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); }