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GraphicsMagick.9389
GraphicsMagick-dcm.c-update.patch
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File GraphicsMagick-dcm.c-update.patch of Package GraphicsMagick.9389
Index: GraphicsMagick-1.3.29/coders/dcm.c =================================================================== --- GraphicsMagick-1.3.29.orig/coders/dcm.c 2018-04-29 20:01:26.000000000 +0200 +++ GraphicsMagick-1.3.29/coders/dcm.c 2018-06-13 20:03:24.671464110 +0200 @@ -183,7 +183,7 @@ typedef struct _DicomStream lower_lim; Quantum - *rescale_map; + *rescale_map; /* Allocated with dcm->max_value_in+1 entries */ #if defined(USE_GRAYMAP) unsigned short @@ -3336,6 +3336,10 @@ static MagickPassFail funcDCM_Palette(Im return MagickFail; } + if (image->logging) + (void) LogMagickEvent(CoderEvent,GetMagickModule(), + "Palette with %" MAGICK_SIZE_T_F "u entries...", + (MAGICK_SIZE_T) dcm->length); /* Initialize colormap (entries are always 16 bit) 1201/2/3 = red/green/blue palette @@ -3781,21 +3785,38 @@ static MagickPassFail DCM_SetupRescaleMa Xw_min, Xw_max; - unsigned long + unsigned int i; if (dcm->rescaling == DCM_RS_NONE) return MagickPass; + if (image->logging) + (void) LogMagickEvent(CoderEvent,GetMagickModule(), + "Set up rescale map for input range of %u" + " (%u entries)...", + dcm->max_value_in+1,MaxMap+1); + + /* + The rescale map must be limited to MaxMap+1 entries, which is 256 + or 65536, depending on QuantumDepth. Using a QuantumDepth less + than 16 for DICOM is a bad idea. + + The dcm->significant_bits value is limited to 16 (larger values + are outright rejected) so dcm->max_value_in and dcm->max_value_out + are limited to 65535. + */ + if (dcm->rescale_map == (Quantum *) NULL) { - dcm->rescale_map=MagickAllocateArray(Quantum *,dcm->max_value_in+1,sizeof(Quantum)); + size_t num_entries = Max(MaxMap+1,dcm->max_value_in+1); + dcm->rescale_map=MagickAllocateArray(Quantum *,num_entries,sizeof(Quantum)); if (dcm->rescale_map == NULL) { ThrowException(exception,ResourceLimitError,MemoryAllocationFailed,image->filename); return MagickFail; } - (void) memset(dcm->rescale_map,0,(size_t) dcm->max_value_in+1*sizeof(Quantum)); + (void) memset(dcm->rescale_map,0,num_entries*sizeof(Quantum)); } if (dcm->window_width == 0) @@ -3837,8 +3858,9 @@ static MagickPassFail DCM_SetupRescaleMa dcm->rescale_map[i]=(Quantum)(((Xr-Xw_min)/(win_width-1))*dcm->max_value_out+0.5); } if (dcm->phot_interp == DCM_PI_MONOCHROME1) - for (i=0; i < (dcm->max_value_in+1); i++) + for (i=0; i <= dcm->max_value_in; i++) dcm->rescale_map[i]=dcm->max_value_out-dcm->rescale_map[i]; + return MagickPass; } @@ -3904,7 +3926,6 @@ void DCM_SetRescaling(DicomStream *dcm,i dcm->rescaling=DCM_RS_PRE; } -#if 0 /* FIXME: This code is totally broken since DCM_SetupRescaleMap populates dcm->rescale_map and dcm->rescale_map has @@ -4023,14 +4044,13 @@ static MagickPassFail DCM_PostRescaleIma } return MagickPass; } -#endif static MagickPassFail DCM_ReadPaletteImage(Image *image,DicomStream *dcm,ExceptionInfo *exception) { - long + unsigned long y; - register long + register unsigned long x; register PixelPacket @@ -4051,13 +4071,13 @@ static MagickPassFail DCM_ReadPaletteIma (void) LogMagickEvent(CoderEvent,GetMagickModule(), "Reading Palette image..."); - for (y=0; y < (long) image->rows; y++) + for (y=0; y < image->rows; y++) { q=SetImagePixels(image,0,y,image->columns,1); if (q == (PixelPacket *) NULL) return MagickFail; indexes=AccessMutableIndexes(image); - for (x=0; x < (long) image->columns; x++) + for (x=0; x < image->columns; x++) { if (dcm->bytes_per_pixel == 1) { @@ -4113,6 +4133,8 @@ static MagickPassFail DCM_ReadPaletteIma index=(IndexPacket) (index); VerifyColormapIndex(image,index); indexes[x]=index; + *q=image->colormap[index]; + q++; } if (EOFBlob(image)) @@ -4135,16 +4157,16 @@ static MagickPassFail DCM_ReadPaletteIma static MagickPassFail DCM_ReadGrayscaleImage(Image *image,DicomStream *dcm,ExceptionInfo *exception) { - long + unsigned long y; - register long + register unsigned long x; register PixelPacket *q; -#if defined(GRAYSCALE_USES_PALETTE) +#if defined(GRAYSCALE_USES_PALETTE) /* not used */ register IndexPacket *indexes; #endif @@ -4157,20 +4179,27 @@ static MagickPassFail DCM_ReadGrayscaleI if (image->logging) (void) LogMagickEvent(CoderEvent,GetMagickModule(), - "Reading Grayscale image..."); + "Reading Grayscale %lux%lu image...",image->columns,image->rows); + +#if !defined(GRAYSCALE_USES_PALETTE) + /* + If a palette was provided, the image may be in PseudoClass + */ + image->storage_class=DirectClass; +#endif dcm->lower_lim = dcm->max_value_in; dcm->upper_lim = -(dcm->lower_lim); byte=0; - for (y=0; y < (long) image->rows; y++) + for (y=0; y < image->rows; y++) { - q=SetImagePixels(image,0,y,image->columns,1); + q=SetImagePixelsEx(image,0,y,image->columns,1,exception); if (q == (PixelPacket *) NULL) return MagickFail; -#if defined(GRAYSCALE_USES_PALETTE) +#if defined(GRAYSCALE_USES_PALETTE) /* not used */ indexes=AccessMutableIndexes(image); #endif - for (x=0; x < (long) image->columns; x++) + for (x=0; x < image->columns; x++) { if (dcm->bytes_per_pixel == 1) { @@ -4223,7 +4252,7 @@ static MagickPassFail DCM_ReadGrayscaleI if ((int) l > dcm->upper_lim) dcm->upper_lim = l; } -#if defined(GRAYSCALE_USES_PALETTE) +#if defined(GRAYSCALE_USES_PALETTE) /* not used */ if (dcm->rescaling == DCM_RS_PRE) indexes[x]=dcm->rescale_map[index]; else @@ -4231,10 +4260,13 @@ static MagickPassFail DCM_ReadGrayscaleI #else if ((dcm->rescaling == DCM_RS_PRE) && (dcm->rescale_map != (Quantum *) NULL)) - index=dcm->rescale_map[index]; + { + index=dcm->rescale_map[index]; + } q->red=index; q->green=index; q->blue=index; + q->opacity=OpaqueOpacity; q++; #endif if (EOFBlob(image)) @@ -4243,7 +4275,7 @@ static MagickPassFail DCM_ReadGrayscaleI return MagickFail; } } - if (!SyncImagePixels(image)) + if (!SyncImagePixelsEx(image,exception)) return MagickFail; if (image->previous == (Image *) NULL) if (QuantumTick(y,image->rows)) @@ -4270,6 +4302,12 @@ static MagickPassFail DCM_ReadPlanarRGBI "Reading Planar RGB %s compressed image with %u planes...", (dcm->transfer_syntax == DCM_TS_RLE ? "RLE" : "not"), dcm->samples_per_pixel); + /* + Force image to DirectClass since we are only updating DirectClass + representation. The image may be in PseudoClass if we were + previously provided with a Palette. + */ + image->storage_class=DirectClass; for (plane=0; plane < dcm->samples_per_pixel; plane++) { @@ -4353,6 +4391,13 @@ static MagickPassFail DCM_ReadRGBImage(I (void) LogMagickEvent(CoderEvent,GetMagickModule(), "Reading RGB image..."); + /* + Force image to DirectClass since we are only updating DirectClass + representation. The image may be in PseudoClass if we were + previously provided with a Palette. + */ + image->storage_class=DirectClass; + for (y=0; y < image->rows; y++) { q=GetImagePixels(image,0,y,image->columns,1); @@ -4406,6 +4451,7 @@ static MagickPassFail DCM_ReadRGBImage(I q->red=(Quantum) red; q->green=(Quantum) green; q->blue=(Quantum) blue; + q->opacity=OpaqueOpacity; q++; if (EOFBlob(image)) { @@ -4622,7 +4668,7 @@ static MagickPassFail DCM_ReadNonNativeI dcm->bytes_per_pixel=2; dcm->max_value_in=MaxValueGivenBits(dcm->significant_bits); dcm->max_value_out=dcm->max_value_in; - /*status=DCM_PostRescaleImage(next_image,dcm,True,exception);*/ + status=DCM_PostRescaleImage(next_image,dcm,True,exception); } if (status == MagickPass) { @@ -4928,9 +4974,9 @@ static Image *ReadDCMImage(const ImageIn if (image->logging) (void) LogMagickEvent(CoderEvent,GetMagickModule(), "Rescaling image channels..."); - /*status = DCM_PostRescaleImage(image,&dcm,False,exception); - if (status != MagickPass) - break;*/ + status = DCM_PostRescaleImage(image,&dcm,False,exception); + if (status != MagickPass) + break; } }
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