/*
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% %
% %
% %
% W r i t e I N F O I m a g e %
% %
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%
% WriteINFOImage writes the pixel values as text numbers.
%
% The format of the WriteINFOImage method is:
%
% MagickBooleanType WriteINFOImage(const ImageInfo *image_info,
% Image *image)
%
% A description of each parameter follows.
%
% o image_info: the image info.
%
% o image: The image.
%
*/
static MagickBooleanType WriteINFOImage(const ImageInfo *image_info,
Image *image)
{
const char
*format;
MagickBooleanType
status;
MagickOffsetType
scene;
/*
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,WriteBlobMode,&image->exception);
if (status == MagickFalse)
return(status);
scene=0;
do
{
format=GetImageOption(image_info,"format");
if (format == (char *) NULL)
{
(void) CopyMagickString(image->filename,image->magick_filename,
MaxTextExtent);
image->magick_columns=image->columns;
image->magick_rows=image->rows;
(void) IdentifyImage(image,GetBlobFileHandle(image),
image_info->verbose);
}
else
{
char
*text;
text=InterpretImageProperties(image_info,image,format);
if (text != (char *) NULL)
{
(void) WriteBlobString(image,text);
text=DestroyString(text);
}
}
if (GetNextImageInList(image) == (Image *) NULL)
break;
image=SyncNextImageInList(image);
status=SetImageProgress(image,SaveImagesTag,scene++,
GetImageListLength(image));
if (status == MagickFalse)
break;
} while (image_info->adjoin != MagickFalse);
(void) CloseBlob(image);
return(MagickTrue);
}
/*
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% %
% %
% %
% R e a d D O T I m a g e %
% %
% %
% %
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%
% ReadDOTImage() reads a Graphviz 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 ReadDOTImage method is:
%
% Image *ReadDOTImage(const ImageInfo *image_info,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o exception: return any errors or warnings in this structure.
%
*/
static Image *ReadDOTImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
char
command[MaxTextExtent];
const char
*option;
graph_t
*graph;
Image
*image;
ImageInfo
*read_info;
MagickBooleanType
status;
/*
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,exception);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
return((Image *) NULL);
read_info=CloneImageInfo(image_info);
SetImageInfoBlob(read_info,(void *) NULL,0);
(void) CopyMagickString(read_info->magick,"SVG",MaxTextExtent);
(void) AcquireUniqueFilename(read_info->filename);
(void) FormatLocaleString(command,MaxTextExtent,"-Tsvg -o%s %s",
read_info->filename,image_info->filename);
graph=agread(GetBlobFileHandle(image));
if (graph == (graph_t *) NULL)
return ((Image *) NULL);
option=GetImageOption(image_info,"dot:layout-engine");
if (option == (const char *) NULL)
gvLayout(graphic_context,graph,(char *) "dot");
else
gvLayout(graphic_context,graph,(char *) option);
gvRenderFilename(graphic_context,graph,(char *) "svg",read_info->filename);
gvFreeLayout(graphic_context,graph);
/*
Read SVG graph.
*/
image=ReadImage(read_info,exception);
(void) RelinquishUniqueFileResource(read_info->filename);
read_info=DestroyImageInfo(read_info);
if (image == (Image *) NULL)
return((Image *) NULL);
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d D P S I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadDPSImage() reads a Adobe Postscript 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 ReadDPSImage method is:
%
% Image *ReadDPSImage(const ImageInfo *image_info,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o exception: return any errors or warnings in this structure.
%
*/
static Image *ReadDPSImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
const char
*client_name;
Display
*display;
float
pixels_per_point;
Image
*image;
int
sans,
status;
Pixmap
pixmap;
register ssize_t
i;
register Quantum
*q;
register size_t
pixel;
Screen
*screen;
ssize_t
x,
y;
XColor
*colors;
XImage
*dps_image;
XRectangle
page,
bits_per_pixel;
XResourceInfo
resource_info;
XrmDatabase
resource_database;
XStandardColormap
*map_info;
XVisualInfo
*visual_info;
/*
Open X server connection.
*/
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);
display=XOpenDisplay(image_info->server_name);
if (display == (Display *) NULL)
return((Image *) NULL);
/*
Set our forgiving exception handler.
*/
(void) XSetErrorHandler(XError);
/*
Open image file.
*/
image=AcquireImage(image_info,exception);
status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
if (status == MagickFalse)
return((Image *) NULL);
/*
Get user defaults from X resource database.
*/
client_name=GetClientName();
resource_database=XGetResourceDatabase(display,client_name);
XGetResourceInfo(image_info,resource_database,client_name,&resource_info);
/*
Allocate standard colormap.
*/
map_info=XAllocStandardColormap();
visual_info=(XVisualInfo *) NULL;
if (map_info == (XStandardColormap *) NULL)
ThrowReaderException(ResourceLimitError,"UnableToCreateStandardColormap")
else
{
/*
Initialize visual info.
*/
(void) CloneString(&resource_info.visual_type,"default");
visual_info=XBestVisualInfo(display,map_info,&resource_info);
map_info->colormap=(Colormap) NULL;
}
if ((map_info == (XStandardColormap *) NULL) ||
(visual_info == (XVisualInfo *) NULL))
{
image=DestroyImage(image);
XFreeResources(display,visual_info,map_info,(XPixelInfo *) NULL,
(XFontStruct *) NULL,&resource_info,(XWindowInfo *) NULL);
return((Image *) NULL);
}
/*
Create a pixmap the appropriate size for the image.
*/
screen=ScreenOfDisplay(display,visual_info->screen);
pixels_per_point=XDPSPixelsPerPoint(screen);
if ((image->resolution.x != 0.0) && (image->resolution.y != 0.0))
pixels_per_point=MagickMin(image->resolution.x,image->resolution.y)/
DefaultResolution;
status=XDPSCreatePixmapForEPSF((DPSContext) NULL,screen,
GetBlobFileHandle(image),visual_info->depth,pixels_per_point,&pixmap,
&bits_per_pixel,&page);
if ((status == dps_status_failure) || (status == dps_status_no_extension))
{
image=DestroyImage(image);
XFreeResources(display,visual_info,map_info,(XPixelInfo *) NULL,
(XFontStruct *) NULL,&resource_info,(XWindowInfo *) NULL);
return((Image *) NULL);
}
/*
Rasterize the file into the pixmap.
*/
status=XDPSImageFileIntoDrawable((DPSContext) NULL,screen,pixmap,
GetBlobFileHandle(image),(int) bits_per_pixel.height,visual_info->depth,
&page,-page.x,-page.y,pixels_per_point,MagickTrue,MagickFalse,MagickTrue,
&sans);
if (status != dps_status_success)
{
image=DestroyImage(image);
XFreeResources(display,visual_info,map_info,(XPixelInfo *) NULL,
(XFontStruct *) NULL,&resource_info,(XWindowInfo *) NULL);
return((Image *) NULL);
}
/*
Initialize DPS X image.
*/
dps_image=XGetImage(display,pixmap,0,0,bits_per_pixel.width,
bits_per_pixel.height,AllPlanes,ZPixmap);
(void) XFreePixmap(display,pixmap);
if (dps_image == (XImage *) NULL)
{
image=DestroyImage(image);
XFreeResources(display,visual_info,map_info,(XPixelInfo *) NULL,
(XFontStruct *) NULL,&resource_info,(XWindowInfo *) NULL);
return((Image *) NULL);
}
/*
Get the colormap colors.
*/
colors=(XColor *) AcquireQuantumMemory(visual_info->colormap_size,
sizeof(*colors));
if (colors == (XColor *) NULL)
{
image=DestroyImage(image);
XDestroyImage(dps_image);
XFreeResources(display,visual_info,map_info,(XPixelInfo *) NULL,
(XFontStruct *) NULL,&resource_info,(XWindowInfo *) NULL);
return((Image *) NULL);
}
if ((visual_info->klass != DirectColor) && (visual_info->klass != TrueColor))
for (i=0; i < visual_info->colormap_size; i++)
{
colors[i].pixel=(size_t) i;
colors[i].pad=0;
}
else
{
size_t
blue,
blue_bit,
green,
green_bit,
red,
red_bit;
/*
DirectColor or TrueColor visual.
*/
red=0;
green=0;
blue=0;
red_bit=visual_info->red_mask & (~(visual_info->red_mask)+1);
green_bit=visual_info->green_mask & (~(visual_info->green_mask)+1);
blue_bit=visual_info->blue_mask & (~(visual_info->blue_mask)+1);
for (i=0; i < visual_info->colormap_size; i++)
{
colors[i].pixel=red | green | blue;
colors[i].pad=0;
red+=red_bit;
if (red > visual_info->red_mask)
red=0;
green+=green_bit;
if (green > visual_info->green_mask)
green=0;
blue+=blue_bit;
if (blue > visual_info->blue_mask)
blue=0;
}
}
(void) XQueryColors(display,XDefaultColormap(display,visual_info->screen),
colors,visual_info->colormap_size);
/*
Convert X image to MIFF format.
*/
if ((visual_info->klass != TrueColor) && (visual_info->klass != DirectColor))
image->storage_class=PseudoClass;
image->columns=(size_t) dps_image->width;
image->rows=(size_t) dps_image->height;
if (image_info->ping != MagickFalse)
{
(void) CloseBlob(image);
return(GetFirstImageInList(image));
}
status=SetImageExtent(image,image->columns,image->rows,exception);
if (status == MagickFalse)
return(DestroyImageList(image));
switch (image->storage_class)
{
case DirectClass:
default:
{
register size_t
color,
index;
size_t
blue_mask,
blue_shift,
green_mask,
green_shift,
red_mask,
red_shift;
/*
Determine shift and mask for red, green, and blue.
*/
red_mask=visual_info->red_mask;
red_shift=0;
while ((red_mask != 0) && ((red_mask & 0x01) == 0))
{
red_mask>>=1;
red_shift++;
}
green_mask=visual_info->green_mask;
green_shift=0;
while ((green_mask != 0) && ((green_mask & 0x01) == 0))
{
green_mask>>=1;
green_shift++;
}
blue_mask=visual_info->blue_mask;
blue_shift=0;
while ((blue_mask != 0) && ((blue_mask & 0x01) == 0))
{
blue_mask>>=1;
blue_shift++;
}
/*
Convert X image to DirectClass packets.
*/
if ((visual_info->colormap_size > 0) &&
(visual_info->klass == DirectColor))
for (y=0; y < (ssize_t) image->rows; y++)
{
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (Quantum *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
pixel=XGetPixel(dps_image,x,y);
index=(pixel >> red_shift) & red_mask;
SetPixelRed(image,ScaleShortToQuantum(colors[index].red),q);
index=(pixel >> green_shift) & green_mask;
SetPixelGreen(image,ScaleShortToQuantum(colors[index].green),q);
index=(pixel >> blue_shift) & blue_mask;
SetPixelBlue(image,ScaleShortToQuantum(colors[index].blue),q);
q+=GetPixelChannels(image);
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
if (SetImageProgress(image,LoadImageTag,y,image->rows) == MagickFalse)
break;
}
else
for (y=0; y < (ssize_t) image->rows; y++)
{
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (Quantum *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
pixel=XGetPixel(dps_image,x,y);
color=(pixel >> red_shift) & red_mask;
color=(color*65535L)/red_mask;
SetPixelRed(image,ScaleShortToQuantum((unsigned short) color),q);
color=(pixel >> green_shift) & green_mask;
color=(color*65535L)/green_mask;
SetPixelGreen(image,ScaleShortToQuantum((unsigned short) color),q);
color=(pixel >> blue_shift) & blue_mask;
color=(color*65535L)/blue_mask;
SetPixelBlue(image,ScaleShortToQuantum((unsigned short) color),q);
q+=GetPixelChannels(image);
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
if (SetImageProgress(image,LoadImageTag,y,image->rows) == MagickFalse)
break;
}
break;
}
case PseudoClass:
{
/*
Create colormap.
*/
if (AcquireImageColormap(image,(size_t) visual_info->colormap_size,exception) == MagickFalse)
{
image=DestroyImage(image);
colors=(XColor *) RelinquishMagickMemory(colors);
XDestroyImage(dps_image);
XFreeResources(display,visual_info,map_info,(XPixelInfo *) NULL,
(XFontStruct *) NULL,&resource_info,(XWindowInfo *) NULL);
return((Image *) NULL);
}
for (i=0; i < (ssize_t) image->colors; i++)
{
image->colormap[colors[i].pixel].red=ScaleShortToQuantum(colors[i].red);
image->colormap[colors[i].pixel].green=
ScaleShortToQuantum(colors[i].green);
image->colormap[colors[i].pixel].blue=
ScaleShortToQuantum(colors[i].blue);
}
/*
Convert X image to PseudoClass packets.
*/
for (y=0; y < (ssize_t) image->rows; y++)
{
q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
if (q == (Quantum *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
SetPixelIndex(image,(unsigned short) XGetPixel(dps_image,x,y),q);
q+=GetPixelChannels(image);
}
if (SyncAuthenticPixels(image,exception) == MagickFalse)
break;
if (SetImageProgress(image,LoadImageTag,y,image->rows) == MagickFalse)
break;
}
break;
}
}
/*
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% %
% %
% %
% W r i t e I N F O I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% WriteINFOImage() writes image descriptive info to stdout.
%
% The format of the WriteINFOImage method is:
%
% MagickPassFail WriteINFOImage(const ImageInfo *image_info,Image *image)
%
% A description of each parameter follows.
%
% o image_info: The image info.
%
% o image: The image.
%
%
*/
static MagickPassFail
WriteINFOImage(const ImageInfo *image_info,Image *image)
{
MagickPassFail
status;
FILE
*file;
Image
*list_entry;
char
temporary_filename[MaxTextExtent];
const char
*format;
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
/*
Obtain optional 'identify' style output specification.
*/
format=AccessDefinition(image_info,"info","format");
if (format != (char *) NULL)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"info:format=\"%s\"",format);
/*
Open blob.
*/
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == MagickFail)
ThrowWriterException(FileOpenError,UnableToOpenFile,image);
/*
Allocate and open a temporary file to write output to.
*/
temporary_filename[0]='\0';
if ((file=GetBlobFileHandle(image)) == (FILE *) NULL)
{
if(!AcquireTemporaryFileName(temporary_filename))
ThrowWriterException(FileOpenError,UnableToCreateTemporaryFile,image);
if ((file=fopen(temporary_filename,"w")) == (FILE *) NULL)
{
(void) LiberateTemporaryFile(temporary_filename);
ThrowWriterException(FileOpenError,UnableToCreateTemporaryFile,image);
}
}
list_entry=image;
while (list_entry != (Image *) NULL)
{
/*
Avoid convert style output syntax by restoring original filename.
*/
(void) strlcpy(list_entry->filename,list_entry->magick_filename,
sizeof(list_entry->filename));
/*
Describe image.
*/
if (format != (char *) NULL)
{
char
*text;
text=TranslateText(image_info,list_entry,format);
if (text != (char *) NULL)
{
(void) fputs(text,file);
(void) fputs("\n",file);
MagickFreeMemory(text);
}
}
else
{
if ((status=DescribeImage(list_entry,file,image_info->verbose))
== MagickFail)
break;
}
list_entry=GetNextImageInList(list_entry);
}
if ('\0' != temporary_filename[0])
{
/*
Close temporary file.
*/
(void) fclose(file);
/*
Send content of temporary file to blob stream.
*/
if (WriteBlobFile(image,temporary_filename) == MagickFail)
status=MagickFail;
(void) LiberateTemporaryFile(temporary_filename);
}
CloseBlob(image);
return status;
}
