% July 1992 %
% %
% %
-% Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization %
+% Copyright 1999-2013 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"
/*
Define declarations.
*/
-#if !defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__MINGW32__)
+#if !defined(MAGICKCORE_WINDOWS_SUPPORT) || defined(__MINGW32__) || defined(__MINGW64__)
#define BI_RGB 0
#define BI_RLE8 1
#define BI_BITFIELDS 3
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;
% 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->compression == ZipCompression)
+ 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,exception);
+ 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;
*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++;