/*
Method: Info#page=<aString> or <aGeometry>
Purpose: store the Postscript page geometry
*/
VALUE
Info_page_eq(VALUE self, VALUE page_arg)
{
Info *info;
volatile VALUE geom_str;
char *geometry;
Data_Get_Struct(self, Info, info);
if (NIL_P(page_arg))
{
magick_free(info->page);
info->page = NULL;
return self;
}
geom_str = rm_to_s(page_arg);
geometry=GetPageGeometry(StringValuePtr(geom_str));
if (*geometry == '\0')
{
magick_free(info->page);
info->page = NULL;
return self;
}
magick_clone_string(&info->page, geometry);
(void) SetImageOption(info, "page", StringValuePtr(geom_str));
return self;
}
/*
Method: Info#origin=+-x+-y
Purpose: Set origin geometry. Argument may be a Geometry object as well
as a geometry string.
*/
VALUE
Info_origin_eq(VALUE self, VALUE origin_arg)
{
Info *info;
volatile VALUE origin_str;
char *origin;
Data_Get_Struct(self, Info, info);
if (NIL_P(origin_arg))
{
(void) RemoveImageOption(info, "origin");
return self;
}
origin_str = rm_to_s(origin_arg);
origin = GetPageGeometry(StringValuePtr(origin_str));
if (IsGeometry(origin) == MagickFalse)
{
rb_raise(rb_eArgError, "invalid origin geometry: %s", origin);
}
(void) SetImageOption(info, "origin", origin);
return self;
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d C A C H E I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadMPCImage() reads an Magick Persistent Cache image file and returns
% it. It allocates the memory necessary for the new Image structure and
% returns a pointer to the new image.
%
% The format of the ReadMPCImage method is:
%
% Image *ReadMPCImage(const ImageInfo *image_info,ExceptionInfo *exception)
%
% Decompression code contributed by Kyle Shorter.
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o exception: return any errors or warnings in this structure.
%
*/
static Image *ReadMPCImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
char
cache_filename[MaxTextExtent],
id[MaxTextExtent],
keyword[MaxTextExtent],
*options;
const unsigned char
*p;
GeometryInfo
geometry_info;
Image
*image;
int
c;
LinkedListInfo
*profiles;
MagickBooleanType
status;
MagickOffsetType
offset;
MagickStatusType
flags;
register long
i;
size_t
length;
ssize_t
count;
StringInfo
*profile;
unsigned long
depth,
quantum_depth;
/*
Open image file.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
image_info->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
image=AcquireImage(image_info);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
(void) CopyMagickString(cache_filename,image->filename,MaxTextExtent);
AppendImageFormat("cache",cache_filename);
c=ReadBlobByte(image);
if (c == EOF)
{
image=DestroyImage(image);
return((Image *) NULL);
}
*id='\0';
(void) ResetMagickMemory(keyword,0,sizeof(keyword));
offset=0;
do
{
/*
Decode image header; header terminates one character beyond a ':'.
*/
profiles=(LinkedListInfo *) NULL;
length=MaxTextExtent;
options=AcquireString((char *) NULL);
quantum_depth=MAGICKCORE_QUANTUM_DEPTH;
image->depth=8;
image->compression=NoCompression;
while ((isgraph(c) != MagickFalse) && (c != (int) ':'))
{
register char
*p;
if (c == (int) '{')
{
char
*comment;
/*
Read comment-- any text between { }.
*/
length=MaxTextExtent;
comment=AcquireString((char *) NULL);
for (p=comment; comment != (char *) NULL; p++)
{
c=ReadBlobByte(image);
if ((c == EOF) || (c == (int) '}'))
break;
if ((size_t) (p-comment+1) >= length)
{
*p='\0';
length<<=1;
comment=(char *) ResizeQuantumMemory(comment,length+
MaxTextExtent,sizeof(*comment));
if (comment == (char *) NULL)
break;
p=comment+strlen(comment);
}
*p=(char) c;
}
if (comment == (char *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
*p='\0';
(void) SetImageProperty(image,"comment",comment);
comment=DestroyString(comment);
c=ReadBlobByte(image);
}
else
if (isalnum(c) != MagickFalse)
{
/*
Get the keyword.
*/
p=keyword;
do
{
if (isspace((int) ((unsigned char) c)) != 0)
break;
if (c == (int) '=')
break;
if ((size_t) (p-keyword) < (MaxTextExtent-1))
*p++=(char) c;
c=ReadBlobByte(image);
} while (c != EOF);
*p='\0';
p=options;
while (isspace((int) ((unsigned char) c)) != 0)
c=ReadBlobByte(image);
if (c == (int) '=')
{
/*
Get the keyword value.
*/
c=ReadBlobByte(image);
while ((c != (int) '}') && (c != EOF))
{
if ((size_t) (p-options+1) >= length)
{
*p='\0';
length<<=1;
options=(char *) ResizeQuantumMemory(options,length+
MaxTextExtent,sizeof(*options));
if (options == (char *) NULL)
break;
p=options+strlen(options);
}
if (options == (char *) NULL)
ThrowReaderException(ResourceLimitError,
"MemoryAllocationFailed");
*p++=(char) c;
c=ReadBlobByte(image);
if (*options != '{')
if (isspace((int) ((unsigned char) c)) != 0)
break;
}
}
*p='\0';
if (*options == '{')
(void) CopyMagickString(options,options+1,MaxTextExtent);
/*
Assign a value to the specified keyword.
*/
switch (*keyword)
{
case 'b':
case 'B':
{
if (LocaleCompare(keyword,"background-color") == 0)
{
(void) QueryColorDatabase(options,&image->background_color,
exception);
break;
}
if (LocaleCompare(keyword,"blue-primary") == 0)
{
flags=ParseGeometry(options,&geometry_info);
image->chromaticity.blue_primary.x=geometry_info.rho;
image->chromaticity.blue_primary.y=geometry_info.sigma;
if ((flags & SigmaValue) == 0)
image->chromaticity.blue_primary.y=
image->chromaticity.blue_primary.x;
break;
}
if (LocaleCompare(keyword,"border-color") == 0)
{
(void) QueryColorDatabase(options,&image->border_color,
exception);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'c':
case 'C':
{
if (LocaleCompare(keyword,"class") == 0)
{
long
storage_class;
storage_class=ParseMagickOption(MagickClassOptions,
MagickFalse,options);
if (storage_class < 0)
break;
image->storage_class=(ClassType) storage_class;
break;
}
if (LocaleCompare(keyword,"colors") == 0)
{
image->colors=StringToUnsignedLong(options);
break;
}
if (LocaleCompare(keyword,"colorspace") == 0)
{
long
colorspace;
colorspace=ParseMagickOption(MagickColorspaceOptions,
MagickFalse,options);
if (colorspace < 0)
break;
image->colorspace=(ColorspaceType) colorspace;
break;
}
if (LocaleCompare(keyword,"compression") == 0)
{
long
compression;
compression=ParseMagickOption(MagickCompressOptions,
MagickFalse,options);
if (compression < 0)
break;
image->compression=(CompressionType) compression;
break;
}
if (LocaleCompare(keyword,"columns") == 0)
{
image->columns=StringToUnsignedLong(options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'd':
case 'D':
{
if (LocaleCompare(keyword,"delay") == 0)
{
image->delay=StringToUnsignedLong(options);
break;
}
if (LocaleCompare(keyword,"depth") == 0)
{
image->depth=StringToUnsignedLong(options);
break;
}
if (LocaleCompare(keyword,"dispose") == 0)
{
long
dispose;
dispose=ParseMagickOption(MagickDisposeOptions,MagickFalse,
options);
if (dispose < 0)
break;
image->dispose=(DisposeType) dispose;
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'e':
case 'E':
{
if (LocaleCompare(keyword,"endian") == 0)
{
long
endian;
endian=ParseMagickOption(MagickEndianOptions,MagickFalse,
options);
if (endian < 0)
break;
image->endian=(EndianType) endian;
break;
}
if (LocaleCompare(keyword,"error") == 0)
{
image->error.mean_error_per_pixel=StringToDouble(options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'g':
case 'G':
{
if (LocaleCompare(keyword,"gamma") == 0)
{
image->gamma=StringToDouble(options);
break;
}
if (LocaleCompare(keyword,"green-primary") == 0)
{
flags=ParseGeometry(options,&geometry_info);
image->chromaticity.green_primary.x=geometry_info.rho;
image->chromaticity.green_primary.y=geometry_info.sigma;
if ((flags & SigmaValue) == 0)
image->chromaticity.green_primary.y=
image->chromaticity.green_primary.x;
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'i':
case 'I':
{
if (LocaleCompare(keyword,"id") == 0)
{
(void) CopyMagickString(id,options,MaxTextExtent);
break;
}
if (LocaleCompare(keyword,"iterations") == 0)
{
image->iterations=StringToUnsignedLong(options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'm':
case 'M':
{
if (LocaleCompare(keyword,"matte") == 0)
{
long
matte;
matte=ParseMagickOption(MagickBooleanOptions,MagickFalse,
options);
if (matte < 0)
break;
image->matte=(MagickBooleanType) matte;
break;
}
if (LocaleCompare(keyword,"matte-color") == 0)
{
(void) QueryColorDatabase(options,&image->matte_color,
exception);
break;
}
if (LocaleCompare(keyword,"maximum-error") == 0)
{
image->error.normalized_maximum_error=StringToDouble(options);
break;
}
if (LocaleCompare(keyword,"mean-error") == 0)
{
image->error.normalized_mean_error=StringToDouble(options);
break;
}
if (LocaleCompare(keyword,"montage") == 0)
{
(void) CloneString(&image->montage,options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'o':
case 'O':
{
if (LocaleCompare(keyword,"opaque") == 0)
{
long
matte;
matte=ParseMagickOption(MagickBooleanOptions,MagickFalse,
options);
if (matte < 0)
break;
image->matte=(MagickBooleanType) matte;
break;
}
if (LocaleCompare(keyword,"orientation") == 0)
{
long
orientation;
orientation=ParseMagickOption(MagickOrientationOptions,
MagickFalse,options);
if (orientation < 0)
break;
image->orientation=(OrientationType) orientation;
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'p':
case 'P':
{
if (LocaleCompare(keyword,"page") == 0)
{
char
*geometry;
geometry=GetPageGeometry(options);
(void) ParseAbsoluteGeometry(geometry,&image->page);
geometry=DestroyString(geometry);
break;
}
if ((LocaleNCompare(keyword,"profile:",8) == 0) ||
(LocaleNCompare(keyword,"profile-",8) == 0))
{
if (profiles == (LinkedListInfo *) NULL)
profiles=NewLinkedList(0);
(void) AppendValueToLinkedList(profiles,
AcquireString(keyword+8));
profile=AcquireStringInfo((size_t) StringToLong(options));
(void) SetImageProfile(image,keyword+8,profile);
profile=DestroyStringInfo(profile);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'q':
case 'Q':
{
if (LocaleCompare(keyword,"quality") == 0)
{
image->quality=StringToUnsignedLong(options);
break;
}
if (LocaleCompare(keyword,"quantum-depth") == 0)
{
quantum_depth=StringToUnsignedLong(options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'r':
case 'R':
{
if (LocaleCompare(keyword,"red-primary") == 0)
{
flags=ParseGeometry(options,&geometry_info);
image->chromaticity.red_primary.x=geometry_info.rho;
if ((flags & SigmaValue) != 0)
image->chromaticity.red_primary.y=geometry_info.sigma;
break;
}
if (LocaleCompare(keyword,"rendering-intent") == 0)
{
long
rendering_intent;
rendering_intent=ParseMagickOption(MagickIntentOptions,
MagickFalse,options);
if (rendering_intent < 0)
break;
image->rendering_intent=(RenderingIntent) rendering_intent;
break;
}
if (LocaleCompare(keyword,"resolution") == 0)
{
flags=ParseGeometry(options,&geometry_info);
image->x_resolution=geometry_info.rho;
image->y_resolution=geometry_info.sigma;
if ((flags & SigmaValue) == 0)
image->y_resolution=image->x_resolution;
break;
}
if (LocaleCompare(keyword,"rows") == 0)
{
image->rows=StringToUnsignedLong(options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 's':
case 'S':
{
if (LocaleCompare(keyword,"scene") == 0)
{
image->scene=StringToUnsignedLong(options);
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 't':
case 'T':
{
if (LocaleCompare(keyword,"ticks-per-second") == 0)
{
image->ticks_per_second=(long) StringToLong(options);
break;
}
if (LocaleCompare(keyword,"tile-offset") == 0)
{
char
*geometry;
geometry=GetPageGeometry(options);
(void) ParseAbsoluteGeometry(geometry,&image->tile_offset);
geometry=DestroyString(geometry);
}
if (LocaleCompare(keyword,"type") == 0)
{
long
type;
type=ParseMagickOption(MagickTypeOptions,MagickFalse,
options);
if (type < 0)
break;
image->type=(ImageType) type;
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'u':
case 'U':
{
if (LocaleCompare(keyword,"units") == 0)
{
long
units;
units=ParseMagickOption(MagickResolutionOptions,MagickFalse,
options);
if (units < 0)
break;
image->units=(ResolutionType) units;
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
case 'w':
case 'W':
{
if (LocaleCompare(keyword,"white-point") == 0)
{
flags=ParseGeometry(options,&geometry_info);
image->chromaticity.white_point.x=geometry_info.rho;
image->chromaticity.white_point.y=geometry_info.sigma;
if ((flags & SigmaValue) == 0)
image->chromaticity.white_point.y=
image->chromaticity.white_point.x;
break;
}
(void) SetImageProperty(image,keyword,options);
break;
}
default:
{
(void) SetImageProperty(image,keyword,options);
break;
}
}
}
else
c=ReadBlobByte(image);
while (isspace((int) ((unsigned char) c)) != 0)
c=ReadBlobByte(image);
}
options=DestroyString(options);
(void) ReadBlobByte(image);
/*
Verify that required image information is defined.
*/
if ((LocaleCompare(id,"MagickCache") != 0) ||
(image->storage_class == UndefinedClass) ||
(image->compression == UndefinedCompression) || (image->columns == 0) ||
(image->rows == 0))
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
if (quantum_depth != MAGICKCORE_QUANTUM_DEPTH)
ThrowReaderException(CacheError,"InconsistentPersistentCacheDepth");
if (image->montage != (char *) NULL)
{
register char
*p;
/*
Image directory.
*/
length=MaxTextExtent;
image->directory=AcquireString((char *) NULL);
p=image->directory;
do
{
*p='\0';
if ((strlen(image->directory)+MaxTextExtent) >= length)
{
/*
Allocate more memory for the image directory.
*/
length<<=1;
image->directory=(char *) ResizeQuantumMemory(image->directory,
length+MaxTextExtent,sizeof(*image->directory));
if (image->directory == (char *) NULL)
ThrowReaderException(CorruptImageError,"UnableToReadImageData");
p=image->directory+strlen(image->directory);
}
c=ReadBlobByte(image);
*p++=(char) c;
} while (c != (int) '\0');
}
if (profiles != (LinkedListInfo *) NULL)
{
const char
*name;
const StringInfo
*profile;
register unsigned char
*p;
/*
Read image profiles.
*/
ResetLinkedListIterator(profiles);
name=(const char *) GetNextValueInLinkedList(profiles);
while (name != (const char *) NULL)
{
profile=GetImageProfile(image,name);
if (profile != (StringInfo *) NULL)
{
p=GetStringInfoDatum(profile);
count=ReadBlob(image,GetStringInfoLength(profile),p);
}
name=(const char *) GetNextValueInLinkedList(profiles);
}
profiles=DestroyLinkedList(profiles,RelinquishMagickMemory);
}
depth=GetImageQuantumDepth(image,MagickFalse);
if (image->storage_class == PseudoClass)
{
/*
Create image colormap.
*/
if (AcquireImageColormap(image,image->colors) == MagickFalse)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
if (image->colors != 0)
{
size_t
packet_size;
unsigned char
*colormap;
/*
Read image colormap from file.
*/
packet_size=(size_t) (3UL*depth/8UL);
colormap=(unsigned char *) AcquireQuantumMemory(image->colors,
packet_size*sizeof(*colormap));
if (colormap == (unsigned char *) NULL)
ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
count=ReadBlob(image,packet_size*image->colors,colormap);
if (count != (ssize_t) (packet_size*image->colors))
ThrowReaderException(CorruptImageError,
"InsufficientImageDataInFile");
p=colormap;
switch (depth)
{
default:
ThrowReaderException(CorruptImageError,
"ImageDepthNotSupported");
case 8:
{
unsigned char
pixel;
for (i=0; i < (long) image->colors; i++)
{
p=PushCharPixel(p,&pixel);
image->colormap[i].red=ScaleCharToQuantum(pixel);
p=PushCharPixel(p,&pixel);
image->colormap[i].green=ScaleCharToQuantum(pixel);
p=PushCharPixel(p,&pixel);
image->colormap[i].blue=ScaleCharToQuantum(pixel);
}
break;
}
case 16:
{
unsigned short
pixel;
for (i=0; i < (long) image->colors; i++)
{
p=PushShortPixel(MSBEndian,p,&pixel);
image->colormap[i].red=ScaleShortToQuantum(pixel);
p=PushShortPixel(MSBEndian,p,&pixel);
image->colormap[i].green=ScaleShortToQuantum(pixel);
p=PushShortPixel(MSBEndian,p,&pixel);
image->colormap[i].blue=ScaleShortToQuantum(pixel);
}
break;
}
case 32:
{
unsigned long
pixel;
for (i=0; i < (long) image->colors; i++)
{
p=PushLongPixel(MSBEndian,p,&pixel);
image->colormap[i].red=ScaleLongToQuantum(pixel);
p=PushLongPixel(MSBEndian,p,&pixel);
image->colormap[i].green=ScaleLongToQuantum(pixel);
p=PushLongPixel(MSBEndian,p,&pixel);
image->colormap[i].blue=ScaleLongToQuantum(pixel);
}
break;
}
}
colormap=(unsigned char *) RelinquishMagickMemory(colormap);
}
}
if (EOFBlob(image) != MagickFalse)
{
ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
image->filename);
break;
}
if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
if (image->scene >= (image_info->scene+image_info->number_scenes-1))
break;
/*
Attach persistent pixel cache.
*/
status=PersistPixelCache(image,cache_filename,MagickTrue,&offset,exception);
if (status == MagickFalse)
ThrowReaderException(CacheError,"UnableToPersistPixelCache");
/*
Proceed to next image.
*/
do
{
c=ReadBlobByte(image);
} while ((isgraph(c) == MagickFalse) && (c != EOF));
if (c != EOF)
{
/*
Allocate next image structure.
*/
AcquireNextImage(image_info,image);
if (GetNextImageInList(image) == (Image *) NULL)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
image=SyncNextImageInList(image);
status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
GetBlobSize(image));
if (status == MagickFalse)
break;
}
} while (c != EOF);
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
static Image *ReadEMFImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
BITMAPINFO
DIBinfo;
HBITMAP
hBitmap,
hOldBitmap;
HDC
hDC;
HENHMETAFILE
hemf;
Image
*image;
long
height,
width,
y;
RECT
rect;
register long
x;
register PixelPacket
*q;
RGBQUAD
*pBits,
*ppBits;
image=AcquireImage(image_info);
hemf=ReadEnhMetaFile(image_info->filename,&width,&height);
if (hemf == (HENHMETAFILE) NULL)
ThrowReaderException(CorruptImageError,"ImproperImageHeader");
if ((image->columns == 0) || (image->rows == 0))
{
double
y_resolution,
x_resolution;
y_resolution=DefaultResolution;
x_resolution=DefaultResolution;
if (image->y_resolution > 0)
{
y_resolution=image->y_resolution;
if (image->units == PixelsPerCentimeterResolution)
y_resolution*=CENTIMETERS_INCH;
}
if (image->x_resolution > 0)
{
x_resolution=image->x_resolution;
if (image->units == PixelsPerCentimeterResolution)
x_resolution*=CENTIMETERS_INCH;
}
image->rows=(unsigned long) ((height/1000.0/CENTIMETERS_INCH)*
y_resolution+0.5);
image->columns=(unsigned long) ((width/1000.0/CENTIMETERS_INCH)*
x_resolution+0.5);
}
if (image_info->size != (char *) NULL)
{
long
x;
image->columns=width;
image->rows=height;
x=0;
y=0;
(void) GetGeometry(image_info->size,&x,&y,&image->columns,&image->rows);
}
if (image_info->page != (char *) NULL)
{
char
*geometry;
long
sans;
register char
*p;
MagickStatusType
flags;
geometry=GetPageGeometry(image_info->page);
p=strchr(geometry,'>');
if (p == (char *) NULL)
{
flags=ParseMetaGeometry(geometry,&sans,&sans,&image->columns,
&image->rows);
if (image->x_resolution != 0.0)
image->columns=(unsigned long) ((image->columns*
image->x_resolution)+0.5);
if (image->y_resolution != 0.0)
image->rows=(unsigned long) ((image->rows*image->y_resolution)+0.5);
}
else
{
*p='\0';
flags=ParseMetaGeometry(geometry,&sans,&sans,&image->columns,
&image->rows);
if (image->x_resolution != 0.0)
image->columns=(unsigned long) (((image->columns*
image->x_resolution)/DefaultResolution)+0.5);
if (image->y_resolution != 0.0)
image->rows=(unsigned long) (((image->rows*image->y_resolution)/
DefaultResolution)+0.5);
}
geometry=DestroyString(geometry);
}
hDC=GetDC(NULL);
if (hDC == (HDC) NULL)
{
DeleteEnhMetaFile(hemf);
ThrowReaderException(ResourceLimitError,"UnableToCreateADC");
}
/*
Initialize the bitmap header info.
*/
(void) ResetMagickMemory(&DIBinfo,0,sizeof(BITMAPINFO));
DIBinfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
DIBinfo.bmiHeader.biWidth=image->columns;
DIBinfo.bmiHeader.biHeight=(-1)*image->rows;
DIBinfo.bmiHeader.biPlanes=1;
DIBinfo.bmiHeader.biBitCount=32;
DIBinfo.bmiHeader.biCompression=BI_RGB;
hBitmap=CreateDIBSection(hDC,&DIBinfo,DIB_RGB_COLORS,(void **) &ppBits,
NULL,0);
ReleaseDC(NULL,hDC);
if (hBitmap == (HBITMAP) NULL)
{
DeleteEnhMetaFile(hemf);
ThrowReaderException(ResourceLimitError,"UnableToCreateBitmap");
}
hDC=CreateCompatibleDC(NULL);
if (hDC == (HDC) NULL)
{
DeleteEnhMetaFile(hemf);
DeleteObject(hBitmap);
ThrowReaderException(ResourceLimitError,"UnableToCreateADC");
}
hOldBitmap=(HBITMAP) SelectObject(hDC,hBitmap);
if (hOldBitmap == (HBITMAP) NULL)
{
DeleteEnhMetaFile(hemf);
DeleteDC(hDC);
DeleteObject(hBitmap);
ThrowReaderException(ResourceLimitError,"UnableToCreateBitmap");
}
/*
Initialize the bitmap to the image background color.
*/
pBits=ppBits;
for (y=0; y < (long) image->rows; y++)
{
for (x=0; x < (long) image->columns; x++)
{
pBits->rgbRed=ScaleQuantumToChar(image->background_color.red);
pBits->rgbGreen=ScaleQuantumToChar(image->background_color.green);
pBits->rgbBlue=ScaleQuantumToChar(image->background_color.blue);
pBits++;
}
}
rect.top=0;
rect.left=0;
rect.right=image->columns;
rect.bottom=image->rows;
/*
Convert metafile pixels.
*/
PlayEnhMetaFile(hDC,hemf,&rect);
pBits=ppBits;
for (y=0; y < (long) image->rows; y++)
{
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (PixelPacket *) NULL)
break;
for (x=0; x < (long) image->columns; x++)
{
q->red=ScaleCharToQuantum(pBits->rgbRed);
q->green=ScaleCharToQuantum(pBits->rgbGreen);
q->blue=ScaleCharToQuantum(pBits->rgbBlue);
q->opacity=OpaqueOpacity;
pBits++;
q++;
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
}
DeleteEnhMetaFile(hemf);
SelectObject(hDC,hOldBitmap);
DeleteDC(hDC);
DeleteObject(hBitmap);
return(GetFirstImageInList(image));
}
static Image *ReadEMFImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
BITMAPINFO
DIBinfo;
HBITMAP
hBitmap,
hOldBitmap;
HDC
hDC;
HENHMETAFILE
hemf;
Image
*image;
long
height,
width,
y;
RECT
rect;
register long
x;
register PixelPacket
*q;
RGBQUAD
*pBits,
*ppBits;
image=AllocateImage(image_info);
hemf=ReadEnhMetaFile(image_info->filename,&width,&height);
if (!hemf)
ThrowReaderException(CorruptImageError,ImproperImageHeader,image);
if ((image->columns == 0) || (image->rows == 0))
{
double
y_resolution = 72.0,
x_resolution = 72.0;
if (image->y_resolution > 0)
{
y_resolution=image->y_resolution;
if (image->units == PixelsPerCentimeterResolution)
y_resolution*=CENTIMETERS_INCH;
}
if (image->x_resolution > 0)
{
x_resolution=image->x_resolution;
if (image->units == PixelsPerCentimeterResolution)
x_resolution*=CENTIMETERS_INCH;
}
image->rows=ceil((height*CENTIMETERS_INCH)/1000*y_resolution);
image->columns=ceil((width*CENTIMETERS_INCH)/1000*x_resolution);
}
if (image_info->size != (char *) NULL)
{
long
x;
image->columns=width;
image->rows=height;
x=0;
y=0;
(void) GetGeometry(image_info->size,&x,&y,&image->columns,&image->rows);
}
if (image_info->page != (char *) NULL)
{
char
*geometry;
long
sans;
register char
*p;
/* unsigned int */
/* flags; */
geometry=GetPageGeometry(image_info->page);
p=strchr(geometry,'>');
if (!p)
{
/*flags=*/ (void) GetMagickGeometry(geometry,&sans,&sans,&image->columns,
&image->rows);
if (image->x_resolution != 0.0)
image->columns=(unsigned int)
((image->columns*image->x_resolution)+0.5);
if (image->y_resolution != 0.0)
image->rows=(unsigned int)
((image->rows*image->y_resolution)+0.5);
}
else
{
*p='\0';
/*flags=*/ (void) GetMagickGeometry(geometry,&sans,&sans,&image->columns,
&image->rows);
if (image->x_resolution != 0.0)
image->columns=(unsigned int)
(((image->columns*image->x_resolution)/72.0)+0.5);
if (image->y_resolution != 0.0)
image->rows=(unsigned int)
(((image->rows*image->y_resolution)/72.0)+0.5);
}
MagickFreeMemory(geometry);
}
hDC=GetDC(NULL);
if (!hDC)
ThrowReaderException(CoderError,UnableToCreateADC,image);
/*
Initialize the bitmap header info.
*/
(void) memset(&DIBinfo,0,sizeof(BITMAPINFO));
DIBinfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
DIBinfo.bmiHeader.biWidth=image->columns;
DIBinfo.bmiHeader.biHeight=(-1)*image->rows;
DIBinfo.bmiHeader.biPlanes=1;
DIBinfo.bmiHeader.biBitCount=32;
DIBinfo.bmiHeader.biCompression=BI_RGB;
hBitmap=
CreateDIBSection(hDC,&DIBinfo,DIB_RGB_COLORS,(void **) &ppBits,NULL,0);
ReleaseDC(NULL,hDC);
if (!hBitmap)
ThrowReaderException(CoderError,UnableToCreateBitmap,image);
hDC=CreateCompatibleDC(NULL);
if (!hDC)
{
DeleteObject(hBitmap);
ThrowReaderException(CoderError,UnableToCreateADC,image);
}
hOldBitmap=(HBITMAP) SelectObject(hDC,hBitmap);
if (!hOldBitmap)
{
DeleteDC(hDC);
DeleteObject(hBitmap);
ThrowReaderException(CoderError,UnableToCreateBitmap,image);
}
/*
Initialize the bitmap to the image background color.
*/
pBits=ppBits;
for (y=0; y < (long) image->rows; y++)
{
for (x=0; x < (long) image->columns; x++)
{
pBits->rgbRed=ScaleQuantumToChar(image->background_color.red);
pBits->rgbGreen=ScaleQuantumToChar(image->background_color.green);
pBits->rgbBlue=ScaleQuantumToChar(image->background_color.blue);
pBits++;
}
}
rect.top=0;
rect.left=0;
rect.right=image->columns;
rect.bottom=image->rows;
/*
Convert metafile pixels.
*/
PlayEnhMetaFile(hDC,hemf,&rect);
pBits=ppBits;
for (y=0; y < (long) image->rows; y++)
{
q=SetImagePixels(image,0,y,image->columns,1);
if (q == (PixelPacket *) NULL)
break;
for (x=0; x < (long) image->columns; x++)
{
q->red=ScaleCharToQuantum(pBits->rgbRed);
q->green=ScaleCharToQuantum(pBits->rgbGreen);
q->blue=ScaleCharToQuantum(pBits->rgbBlue);
q->opacity=OpaqueOpacity;
pBits++;
q++;
}
if (!SyncImagePixels(image))
break;
}
if (hemf)
DeleteEnhMetaFile(hemf);
SelectObject(hDC,hOldBitmap);
DeleteDC(hDC);
DeleteObject(hBitmap);
return(image);
}