% July 1992 %
% %
% %
-% Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization %
+% Copyright 1999-2012 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 %
Include declarations.
*/
#include "MagickCore/studio.h"
+#include "MagickCore/artifact.h"
#include "MagickCore/blob.h"
#include "MagickCore/blob-private.h"
#include "MagickCore/cache.h"
#include "MagickCore/colormap.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/memory_.h"
#include "MagickCore/monitor.h"
#include "MagickCore/monitor-private.h"
-#include "MagickCore/nt-feature.h"
+#include "MagickCore/nt-base-private.h"
#include "MagickCore/pixel-accessor.h"
#include "MagickCore/quantize.h"
#include "MagickCore/quantum-private.h"
icon_info.size=ReadBlobLSBLong(image);
icon_info.width=(unsigned char) ((int) ReadBlobLSBLong(image));
icon_info.height=(unsigned char) ((int) ReadBlobLSBLong(image)/2);
- if ((icon_file.directory[i].width == 0) &&
- (icon_file.directory[i].height == 0))
+ icon_info.planes=ReadBlobLSBShort(image);
+ icon_info.bits_per_pixel=ReadBlobLSBShort(image);
+ if ((icon_info.planes == 18505) && (icon_info.bits_per_pixel == 21060))
{
Image
*icon_image;
Icon image encoded as a compressed PNG image.
*/
length=icon_file.directory[i].size;
- png=(unsigned char *) AcquireQuantumMemory(length+12,sizeof(*png));
+ png=(unsigned char *) AcquireQuantumMemory(length+16,sizeof(*png));
if (png == (unsigned char *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
(void) CopyMagickMemory(png,"\211PNG\r\n\032\n\000\000\000\015",12);
- count=ReadBlob(image,length-12,png+12);
- if (count != (ssize_t) (length-12))
+ png[12]=(unsigned char) icon_info.planes;
+ png[13]=(unsigned char) (icon_info.planes >> 8);
+ png[14]=(unsigned char) icon_info.bits_per_pixel;
+ png[15]=(unsigned char) (icon_info.bits_per_pixel >> 8);
+ count=ReadBlob(image,length-16,png+16);
+ if (count != (ssize_t) (length-16))
{
png=(unsigned char *) RelinquishMagickMemory(png);
ThrowReaderException(CorruptImageError,
}
read_info=CloneImageInfo(image_info);
(void) CopyMagickString(read_info->magick,"PNG",MaxTextExtent);
- icon_image=BlobToImage(read_info,png,length+12,exception);
+ icon_image=BlobToImage(read_info,png,length+16,exception);
read_info=DestroyImageInfo(read_info);
png=(unsigned char *) RelinquishMagickMemory(png);
if (icon_image == (Image *) NULL)
}
else
{
- icon_info.planes=ReadBlobLSBShort(image);
- icon_info.bits_per_pixel=ReadBlobLSBShort(image);
if (icon_info.bits_per_pixel > 32)
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
icon_info.compression=ReadBlobLSBLong(image);
icon_info.y_pixels=ReadBlobLSBLong(image);
icon_info.number_colors=ReadBlobLSBLong(image);
icon_info.colors_important=ReadBlobLSBLong(image);
- image->matte=MagickTrue;
+ image->alpha_trait=BlendPixelTrait;
image->columns=(size_t) icon_file.directory[i].width;
if ((ssize_t) image->columns > icon_info.width)
image->columns=(size_t) icon_info.width;
+ if (image->columns == 0)
+ image->columns=256;
image->rows=(size_t) icon_file.directory[i].height;
if ((ssize_t) image->rows > icon_info.height)
image->rows=(size_t) icon_info.height;
+ if (image->rows == 0)
+ image->rows=256;
image->depth=icon_info.bits_per_pixel;
if (image->debug != MagickFalse)
{
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
}
if (image_info->ping == MagickFalse)
- (void) SyncImage(image);
+ (void) SyncImage(image,exception);
if (icon_info.bits_per_pixel != 32)
{
/*
% image format, version 3 for Windows or (if the image has a matte channel)
% version 4.
%
+% It encodes any subimage as a compressed PNG image ("BI_PNG)",
+% only when its dimensions are 256x256 and image->compression is
+% undefined or is defined as ZipCompression.
+%
% The format of the WriteICONImage method is:
%
% MagickBooleanType WriteICONImage(const ImageInfo *image_info,
next=image;
do
{
- if ((next->columns == 256) && (next->rows == 256))
+ if ((next->columns > 255L) && (next->rows > 255L) &&
+ ((next->compression == UndefinedCompression) ||
+ (next->compression == ZipCompression)))
{
Image
*write_image;
unsigned char
*png;
- /*
- Icon image encoded as a compressed PNG image.
- */
write_image=CloneImage(next,0,0,MagickTrue,exception);
if (write_image == (Image *) NULL)
return(MagickFalse);
write_info=CloneImageInfo(image_info);
(void) CopyMagickString(write_info->filename,"PNG:",MaxTextExtent);
+
+ /* Don't write any ancillary chunks except for gAMA */
+ (void) SetImageArtifact(write_image,"png:include-chunk","none,gama");
+
+ /* Only write PNG32 formatted PNG (32-bit RGBA), 8 bits per channel */
+ (void) SetImageArtifact(write_image,"png:format","png32");
+
png=(unsigned char *) ImageToBlob(write_info,write_image,&length,
exception);
write_image=DestroyImage(write_image);
/*
Initialize ICON raster file header.
*/
- if (next->colorspace != RGBColorspace)
- (void) TransformImageColorspace(next,RGBColorspace);
+ if (IssRGBCompatibleColorspace(next->colorspace) == MagickFalse)
+ (void) TransformImageColorspace(next,sRGBColorspace,exception);
icon_info.file_size=14+12+28;
icon_info.offset_bits=icon_info.file_size;
icon_info.compression=BI_RGB;
case UndefinedResolution:
case PixelsPerInchResolution:
{
- icon_info.x_pixels=(size_t) (100.0*next->x_resolution/2.54);
- icon_info.y_pixels=(size_t) (100.0*next->y_resolution/2.54);
+ icon_info.x_pixels=(size_t) (100.0*next->resolution.x/2.54);
+ icon_info.y_pixels=(size_t) (100.0*next->resolution.y/2.54);
break;
}
case PixelsPerCentimeterResolution:
{
- icon_info.x_pixels=(size_t) (100.0*next->x_resolution);
- icon_info.y_pixels=(size_t) (100.0*next->y_resolution);
+ icon_info.x_pixels=(size_t) (100.0*next->resolution.x);
+ icon_info.y_pixels=(size_t) (100.0*next->resolution.y);
break;
}
}
*q++=ScaleQuantumToChar(GetPixelBlue(next,p));
*q++=ScaleQuantumToChar(GetPixelGreen(next,p));
*q++=ScaleQuantumToChar(GetPixelRed(next,p));
- if (next->matte == MagickFalse)
+ if (next->alpha_trait != BlendPixelTrait)
*q++=ScaleQuantumToChar(QuantumRange);
else
*q++=ScaleQuantumToChar(GetPixelAlpha(next,p));
for (x=0; x < (ssize_t) next->columns; x++)
{
byte<<=1;
- if ((next->matte == MagickTrue) &&
+ if ((next->alpha_trait == BlendPixelTrait) &&
(GetPixelAlpha(next,p) == (Quantum) TransparentAlpha))
byte|=0x01;
bit++;
projects / imagemagick / blobdiff