/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R e a d G R A D I E N T I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ReadGRADIENTImage creates a gradient image and initializes it to
% the color range as specified by the filename. It allocates the memory
% necessary for the new Image structure and returns a pointer to the new
% image.
%
% The format of the ReadGRADIENTImage method is:
%
% Image *ReadGRADIENTImage(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 *ReadGRADIENTImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
char
colorname[MaxTextExtent];
MagickBooleanType
icc_color,
status;
MagickPixelPacket
start_pixel,
stop_pixel;
PixelPacket
start_color,
stop_color;
Image
*image;
/*
Initialize Image structure.
*/
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);
if ((image->columns == 0) || (image->rows == 0))
ThrowReaderException(OptionError,"MustSpecifyImageSize");
(void) SetImageOpacity(image,(Quantum) TransparentOpacity);
(void) CopyMagickString(image->filename,image_info->filename,MaxTextExtent);
(void) CopyMagickString(colorname,image_info->filename,MaxTextExtent);
(void) sscanf(image_info->filename,"%[^-]",colorname);
icc_color=MagickFalse;
if (LocaleCompare(colorname,"icc") == 0)
{
(void) ConcatenateMagickString(colorname,"-",MaxTextExtent);
(void) sscanf(image_info->filename,"%*[^-]-%[^-]",colorname+4);
icc_color=MagickTrue;
}
if (QueryColorDatabase(colorname,&start_color,exception) == MagickFalse)
{
image=DestroyImage(image);
return((Image *) NULL);
}
(void) QueryMagickColor(colorname,&start_pixel,exception);
(void) CopyMagickString(colorname,"white",MaxTextExtent);
if (GetPixelLuma(image,&start_color) > (QuantumRange/2))
(void) CopyMagickString(colorname,"black",MaxTextExtent);
if (icc_color == MagickFalse)
(void) sscanf(image_info->filename,"%*[^-]-%s",colorname);
else
(void) sscanf(image_info->filename,"%*[^-]-%*[^-]-%s",colorname);
if (QueryColorDatabase(colorname,&stop_color,exception) == MagickFalse)
{
image=DestroyImage(image);
return((Image *) NULL);
}
(void) QueryMagickColor(colorname,&stop_pixel,exception);
(void) SetImageColorspace(image,start_pixel.colorspace);
status=GradientImage(image,LocaleCompare(image_info->magick,"GRADIENT") == 0 ?
LinearGradient : RadialGradient,PadSpread,&start_color,&stop_color);
if (status == MagickFalse)
{
image=DestroyImageList(image);
return((Image *) NULL);
}
if ((start_pixel.matte == MagickFalse) && (stop_pixel.matte == MagickFalse))
(void) SetImageAlphaChannel(image,DeactivateAlphaChannel);
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% S e t I m a g e A l p h a C h a n n e l %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% SetImageAlphaChannel() activates, deactivates, resets, or sets the alpha
% channel.
%
% The format of the SetImageAlphaChannel method is:
%
% MagickBooleanType SetImageAlphaChannel(Image *image,
% const AlphaChannelType alpha_type)
%
% A description of each parameter follows:
%
% o image: the image.
%
% o alpha_type: The alpha channel type: ActivateAlphaChannel,
% CopyAlphaChannel, DeactivateAlphaChannel, ExtractAlphaChannel,
% OpaqueAlphaChannel, ResetAlphaChannel, SetAlphaChannel,
% ShapeAlphaChannel, and TransparentAlphaChannel.
%
*/
MagickExport MagickBooleanType SetImageAlphaChannel(Image *image,
const AlphaChannelType alpha_type)
{
MagickBooleanType
status;
assert(image != (Image *) NULL);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
assert(image->signature == MagickSignature);
status=MagickTrue;
switch (alpha_type)
{
case ActivateAlphaChannel:
{
image->matte=MagickTrue;
break;
}
case BackgroundAlphaChannel:
{
CacheView
*image_view;
ExceptionInfo
*exception;
IndexPacket
index;
MagickBooleanType
status;
MagickPixelPacket
background;
PixelPacket
pixel;
ssize_t
y;
/*
Set transparent pixels to background color.
*/
if (image->matte == MagickFalse)
break;
if (SetImageStorageClass(image,DirectClass) == MagickFalse)
break;
GetMagickPixelPacket(image,&background);
SetMagickPixelPacket(image,&image->background_color,(const IndexPacket *)
NULL,&background);
if (image->colorspace == CMYKColorspace)
ConvertRGBToCMYK(&background);
index=0;
SetPixelPacket(image,&background,&pixel,&index);
status=MagickTrue;
exception=(&image->exception);
image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(status) \
magick_threads(image,image,image->rows,1)
#endif
for (y=0; y < (ssize_t) image->rows; y++)
{
register IndexPacket
*restrict indexes;
register PixelPacket
*restrict q;
register ssize_t
x;
if (status == MagickFalse)
continue;
q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
{
status=MagickFalse;
continue;
}
for (x=0; x < (ssize_t) image->columns; x++)
{
if (q->opacity == TransparentOpacity)
{
SetPixelRed(q,pixel.red);
SetPixelGreen(q,pixel.green);
SetPixelBlue(q,pixel.blue);
}
q++;
}
if (image->colorspace == CMYKColorspace)
{
indexes=GetCacheViewAuthenticIndexQueue(image_view);
for (x=0; x < (ssize_t) image->columns; x++)
SetPixelIndex(indexes+x,index);
}
if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
status=MagickFalse;
}
image_view=DestroyCacheView(image_view);
return(status);
}
case CopyAlphaChannel:
case ShapeAlphaChannel:
{
/*
Special usage case for SeparateImageChannel(): copy grayscale color to
the alpha channel.
*/
status=SeparateImageChannel(image,GrayChannels);
image->matte=MagickTrue; /* make sure transparency is now on! */
if (alpha_type == ShapeAlphaChannel)
{
MagickPixelPacket
background;
/*
Reset all color channels to background color.
*/
GetMagickPixelPacket(image,&background);
SetMagickPixelPacket(image,&(image->background_color),(IndexPacket *)
NULL,&background);
(void) LevelColorsImage(image,&background,&background,MagickTrue);
}
break;
}
case DeactivateAlphaChannel:
{
image->matte=MagickFalse;
break;
}
case ExtractAlphaChannel:
{
status=SeparateImageChannel(image,TrueAlphaChannel);
image->matte=MagickFalse;
break;
}
case RemoveAlphaChannel:
case FlattenAlphaChannel:
{
CacheView
*image_view;
ExceptionInfo
*exception;
IndexPacket
index;
MagickBooleanType
status;
MagickPixelPacket
background;
PixelPacket
pixel;
ssize_t
y;
/*
Flatten image pixels over the background pixels.
*/
if (image->matte == MagickFalse)
break;
if (SetImageStorageClass(image,DirectClass) == MagickFalse)
break;
GetMagickPixelPacket(image,&background);
SetMagickPixelPacket(image,&image->background_color,(const IndexPacket *)
NULL,&background);
if (image->colorspace == CMYKColorspace)
ConvertRGBToCMYK(&background);
index=0;
SetPixelPacket(image,&background,&pixel,&index);
status=MagickTrue;
exception=(&image->exception);
image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,4) shared(status) \
magick_threads(image,image,image->rows,1)
#endif
for (y=0; y < (ssize_t) image->rows; y++)
{
register IndexPacket
*restrict indexes;
register PixelPacket
*restrict q;
register ssize_t
x;
if (status == MagickFalse)
continue;
q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
exception);
if (q == (PixelPacket *) NULL)
{
status=MagickFalse;
continue;
}
for (x=0; x < (ssize_t) image->columns; x++)
{
double
gamma,
opacity;
gamma=1.0-QuantumScale*QuantumScale*q->opacity*pixel.opacity;
opacity=(double) QuantumRange*(1.0-gamma);
gamma=PerceptibleReciprocal(gamma);
q->red=ClampToQuantum(gamma*MagickOver_((MagickRealType) q->red,
(MagickRealType) q->opacity,(MagickRealType) pixel.red,
(MagickRealType) pixel.opacity));
q->green=ClampToQuantum(gamma*MagickOver_((MagickRealType) q->green,
(MagickRealType) q->opacity,(MagickRealType) pixel.green,
(MagickRealType) pixel.opacity));
q->blue=ClampToQuantum(gamma*MagickOver_((MagickRealType) q->blue,
(MagickRealType) q->opacity,(MagickRealType) pixel.blue,
(MagickRealType) pixel.opacity));
q->opacity=ClampToQuantum(opacity);
q++;
}
if (image->colorspace == CMYKColorspace)
{
indexes=GetCacheViewAuthenticIndexQueue(image_view);
for (x=0; x < (ssize_t) image->columns; x++)
SetPixelIndex(indexes+x,index);
}
if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
status=MagickFalse;
}
image_view=DestroyCacheView(image_view);
return(status);
}
case ResetAlphaChannel: /* deprecated */
case OpaqueAlphaChannel:
{
status=SetImageOpacity(image,OpaqueOpacity);
break;
}
case SetAlphaChannel:
{
if (image->matte == MagickFalse)
status=SetImageOpacity(image,OpaqueOpacity);
break;
}
case TransparentAlphaChannel:
{
status=SetImageOpacity(image,TransparentOpacity);
break;
}
case UndefinedAlphaChannel:
break;
}
if (status == MagickFalse)
return(status);
return(SyncImagePixelCache(image,&image->exception));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e R G B I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% WriteRGBImage() writes an image to a file in red, green, and blue
% rasterfile format.
%
% The format of the WriteRGBImage method is:
%
% MagickBooleanType WriteRGBImage(const ImageInfo *image_info,Image *image)
%
% A description of each parameter follows.
%
% o image_info: The image info.
%
% o image: The image.
%
*/
static MagickBooleanType WriteRGBImage(const ImageInfo *image_info,Image *image)
{
long
y;
MagickBooleanType
status;
MagickOffsetType
scene;
QuantumInfo
quantum_info;
register const PixelPacket
*p;
size_t
packet_size;
unsigned char
*pixels;
/*
Allocate memory for pixels.
*/
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);
packet_size=(size_t) ((3*image->depth+7)/8);
if ((LocaleCompare(image_info->magick,"RGBA") == 0) ||
(LocaleCompare(image_info->magick,"RGBO") == 0))
packet_size+=(image->depth+7)/8;
pixels=(unsigned char *) AcquireQuantumMemory(image->columns,packet_size*
sizeof(*pixels));
if (pixels == (unsigned char *) NULL)
ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
if (image_info->interlace != PartitionInterlace)
{
/*
Open output image file.
*/
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == MagickFalse)
return(status);
}
scene=0;
do
{
/*
Convert MIFF to RGB raster pixels.
*/
GetQuantumInfo(image_info,&quantum_info);
if (image_info->colorspace == UndefinedColorspace)
(void) SetImageColorspace(image,RGBColorspace);
if (LocaleCompare(image_info->magick,"RGBA") == 0)
if (image->matte == MagickFalse)
(void) SetImageOpacity(image,OpaqueOpacity);
switch (image_info->interlace)
{
case NoInterlace:
default:
{
/*
No interlacing: RGBRGBRGBRGBRGBRGB...
*/
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
if (LocaleCompare(image_info->magick,"RGBA") != 0)
{
(void) ImportQuantumPixels(image,&quantum_info,RGBQuantum,pixels);
(void) WriteBlob(image,packet_size*image->columns,pixels);
}
else
{
if (LocaleCompare(image_info->magick,"RGBA") == 0)
(void) ImportQuantumPixels(image,&quantum_info,RGBAQuantum,
pixels);
else
(void) ImportQuantumPixels(image,&quantum_info,RGBOQuantum,
pixels);
(void) WriteBlob(image,packet_size*image->columns,pixels);
}
if (image->previous == (Image *) NULL)
if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
(QuantumTick(y,image->rows) != MagickFalse))
{
status=image->progress_monitor(SaveImageTag,y,image->rows,
image->client_data);
if (status == MagickFalse)
break;
}
}
break;
}
case LineInterlace:
{
/*
Line interlacing: RRR...GGG...BBB...RRR...GGG...BBB...
*/
packet_size=(image->depth+7)/8;
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
(void) ImportQuantumPixels(image,&quantum_info,RedQuantum,pixels);
(void) WriteBlob(image,packet_size*image->columns,pixels);
(void) ImportQuantumPixels(image,&quantum_info,GreenQuantum,pixels);
(void) WriteBlob(image,packet_size*image->columns,pixels);
(void) ImportQuantumPixels(image,&quantum_info,BlueQuantum,pixels);
(void) WriteBlob(image,packet_size*image->columns,pixels);
if (LocaleCompare(image_info->magick,"RGBA") == 0)
{
if (LocaleCompare(image_info->magick,"RGBA") == 0)
(void) ImportQuantumPixels(image,&quantum_info,AlphaQuantum,
pixels);
else
(void) ImportQuantumPixels(image,&quantum_info,OpacityQuantum,
pixels);
(void) WriteBlob(image,packet_size*image->columns,pixels);
}
if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
(QuantumTick(y,image->rows) != MagickFalse))
{
status=image->progress_monitor(SaveImageTag,y,image->rows,
image->client_data);
if (status == MagickFalse)
break;
}
}
break;
}
case PlaneInterlace:
case PartitionInterlace:
{
/*
Plane interlacing: RRRRRR...GGGGGG...BBBBBB...
*/
packet_size=(image->depth+7)/8;
if (image_info->interlace == PartitionInterlace)
{
AppendImageFormat("R",image->filename);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,
&image->exception);
if (status == MagickFalse)
return(status);
}
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
(void) ImportQuantumPixels(image,&quantum_info,RedQuantum,pixels);
(void) WriteBlob(image,packet_size*image->columns,pixels);
}
if (image_info->interlace == PartitionInterlace)
{
CloseBlob(image);
AppendImageFormat("G",image->filename);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,
&image->exception);
if (status == MagickFalse)
return(status);
}
if (image->progress_monitor != (MagickProgressMonitor) NULL)
{
status=image->progress_monitor(LoadImageTag,100,400,
image->client_data);
if (status == MagickFalse)
break;
}
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
(void) ImportQuantumPixels(image,&quantum_info,GreenQuantum,pixels);
(void) WriteBlob(image,packet_size*image->columns,pixels);
}
if (image_info->interlace == PartitionInterlace)
{
CloseBlob(image);
AppendImageFormat("B",image->filename);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,
&image->exception);
if (status == MagickFalse)
return(status);
}
if (image->progress_monitor != (MagickProgressMonitor) NULL)
{
status=image->progress_monitor(LoadImageTag,200,400,
image->client_data);
if (status == MagickFalse)
break;
}
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
(void) ImportQuantumPixels(image,&quantum_info,BlueQuantum,pixels);
(void) WriteBlob(image,packet_size*image->columns,pixels);
}
if (LocaleCompare(image_info->magick,"RGBA") == 0)
{
if (image->progress_monitor != (MagickProgressMonitor) NULL)
{
status=image->progress_monitor(LoadImageTag,300,400,
image->client_data);
if (status == MagickFalse)
break;
}
if (image_info->interlace == PartitionInterlace)
{
CloseBlob(image);
AppendImageFormat("A",image->filename);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,
&image->exception);
if (status == MagickFalse)
return(status);
}
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,
&image->exception);
if (p == (const PixelPacket *) NULL)
break;
if (LocaleCompare(image_info->magick,"RGBA") == 0)
(void) ImportQuantumPixels(image,&quantum_info,AlphaQuantum,
pixels);
else
(void) ImportQuantumPixels(image,&quantum_info,OpacityQuantum,
pixels);
(void) WriteBlob(image,packet_size*image->columns,pixels);
}
}
if (image_info->interlace == PartitionInterlace)
(void) CopyMagickString(image->filename,image_info->filename,
MaxTextExtent);
if (image->progress_monitor != (MagickProgressMonitor) NULL)
{
status=image->progress_monitor(LoadImageTag,400,400,
image->client_data);
if (status == MagickFalse)
break;
}
break;
}
}
if (GetNextImageInList(image) == (Image *) NULL)
break;
image=SyncNextImageInList(image);
if (image->progress_monitor != (MagickProgressMonitor) NULL)
{
status=image->progress_monitor(SaveImagesTag,scene,
GetImageListLength(image),image->client_data);
if (status == MagickFalse)
break;
}
scene++;
} while (image_info->adjoin != MagickFalse);
pixels=(unsigned char *) RelinquishMagickMemory(pixels);
CloseBlob(image);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% W r i t e C M Y K I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Method WriteCMYKImage writes an image to a file in red, green, and blue
% rasterfile format.
%
% The format of the WriteCMYKImage method is:
%
% unsigned int WriteCMYKImage(const ImageInfo *image_info,Image *image)
%
% A description of each parameter follows.
%
% o status: Method WriteCMYKImage return True if the image is written.
% False is returned is there is a memory shortage or if the image file
% fails to write.
%
% o image_info: Specifies a pointer to a ImageInfo structure.
%
% o image: A pointer to an Image structure.
%
%
*/
static unsigned int WriteCMYKImage(const ImageInfo *image_info,Image *image)
{
int
y;
register const PixelPacket
*p;
unsigned char
*pixels;
unsigned int
packet_size,
quantum_size,
scene,
status;
ExportPixelAreaOptions
export_options;
ExportPixelAreaInfo
export_info;
if (image->depth <= 8)
quantum_size=8;
else if (image->depth <= 16)
quantum_size=16;
else
quantum_size=32;
/*
Allocate memory for pixels.
*/
assert(image_info != (const ImageInfo *) NULL);
assert(image_info->signature == MagickSignature);
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
packet_size=(quantum_size*4)/8;
if (LocaleCompare(image_info->magick,"CMYKA") == 0)
packet_size=(quantum_size*5)/8;
pixels=MagickAllocateArray(unsigned char *,packet_size,image->columns);
if (pixels == (unsigned char *) NULL)
ThrowWriterException(ResourceLimitError,MemoryAllocationFailed,image);
if (image_info->interlace != PartitionInterlace)
{
/*
Open output image file.
*/
status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == False)
ThrowWriterException(FileOpenError,UnableToOpenFile,image);
}
scene=0;
do
{
/*
Convert MIFF to CMYK raster pixels.
*/
(void) TransformColorspace(image,CMYKColorspace);
if (LocaleCompare(image_info->magick,"CMYKA") == 0)
if (!image->matte)
SetImageOpacity(image,OpaqueOpacity);
/*
Initialize export options.
*/
ExportPixelAreaOptionsInit(&export_options);
if (image->endian != UndefinedEndian)
export_options.endian=image->endian;
else if (image_info->endian != UndefinedEndian)
export_options.endian=image_info->endian;
if (image->logging)
(void) LogMagickEvent(CoderEvent,GetMagickModule(),
"Image depth %u bits, Endian %s",quantum_size,
EndianTypeToString(export_options.endian));
switch (image_info->interlace)
{
case NoInterlace:
default:
{
/*
No interlacing: CMYKCMYKCMYKCMYKCMYKCMYK...
*/
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
if (LocaleCompare(image_info->magick,"CMYKA") != 0)
{
(void) ExportImagePixelArea(image,CMYKQuantum,quantum_size,pixels,
&export_options,&export_info);
(void) WriteBlob(image,export_info.bytes_exported,pixels);
}
else
{
(void) ExportImagePixelArea(image,CMYKAQuantum,quantum_size,pixels,
&export_options,&export_info);
(void) WriteBlob(image,export_info.bytes_exported,pixels);
}
if (image->previous == (Image *) NULL)
if (QuantumTick(y,image->rows))
if (!MagickMonitorFormatted(y,image->rows,&image->exception,
SaveImageText,image->filename,
image->columns,image->rows))
break;
}
break;
}
case LineInterlace:
{
/*
Line interlacing: CCC...MMM...YYY...KKK...CCC...MMM...YYY...KKK...
*/
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
(void) ExportImagePixelArea(image,CyanQuantum,quantum_size,pixels,
&export_options,&export_info);
(void) WriteBlob(image,export_info.bytes_exported,pixels);
(void) ExportImagePixelArea(image,MagentaQuantum,quantum_size,pixels,
&export_options,&export_info);
(void) WriteBlob(image,export_info.bytes_exported,pixels);
(void) ExportImagePixelArea(image,YellowQuantum,quantum_size,pixels,
&export_options,&export_info);
(void) WriteBlob(image,export_info.bytes_exported,pixels);
(void) ExportImagePixelArea(image,BlackQuantum,quantum_size,pixels,
&export_options,&export_info);
(void) WriteBlob(image,export_info.bytes_exported,pixels);
if (LocaleCompare(image_info->magick,"CMYKA") == 0)
{
(void) ExportImagePixelArea(image,AlphaQuantum,quantum_size,pixels,
&export_options,&export_info);
(void) WriteBlob(image,export_info.bytes_exported,pixels);
}
if (QuantumTick(y,image->rows))
if (!MagickMonitorFormatted(y,image->rows,&image->exception,
SaveImageText,image->filename,
image->columns,image->rows))
break;
}
break;
}
case PlaneInterlace:
case PartitionInterlace:
{
/*
Plane interlacing: CCCCCC...MMMMMM...YYYYYY...KKKKKK...
*/
if (image_info->interlace == PartitionInterlace)
{
AppendImageFormat("C",image->filename);
status=
OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
if (status == False)
ThrowWriterException(FileOpenError,UnableToOpenFile,image);
}
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
(void) ExportImagePixelArea(image,CyanQuantum,quantum_size,pixels,
&export_options,&export_info);
(void) WriteBlob(image,export_info.bytes_exported,pixels);
}
if (image_info->interlace == PartitionInterlace)
{
CloseBlob(image);
AppendImageFormat("M",image->filename);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,
&image->exception);
if (status == False)
ThrowWriterException(FileOpenError,UnableToOpenFile,image);
}
if (!MagickMonitorFormatted(100,400,&image->exception,
SaveImageText,image->filename,
image->columns,image->rows))
break;
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
(void) ExportImagePixelArea(image,MagentaQuantum,quantum_size,pixels,
&export_options,&export_info);
(void) WriteBlob(image,export_info.bytes_exported,pixels);
}
if (image_info->interlace == PartitionInterlace)
{
CloseBlob(image);
AppendImageFormat("Y",image->filename);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,
&image->exception);
if (status == False)
ThrowWriterException(FileOpenError,UnableToOpenFile,image);
}
if (!MagickMonitorFormatted(200,400,&image->exception,
SaveImageText,image->filename,
image->columns,image->rows))
break;
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
(void) ExportImagePixelArea(image,YellowQuantum,quantum_size,pixels,
&export_options,&export_info);
(void) WriteBlob(image,export_info.bytes_exported,pixels);
}
if (image_info->interlace == PartitionInterlace)
{
CloseBlob(image);
AppendImageFormat("K",image->filename);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,
&image->exception);
if (status == False)
ThrowWriterException(FileOpenError,UnableToOpenFile,image);
}
if (!MagickMonitorFormatted(200,400,&image->exception,
SaveImageText,image->filename,
image->columns,image->rows))
break;
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
if (p == (const PixelPacket *) NULL)
break;
(void) ExportImagePixelArea(image,BlackQuantum,quantum_size,pixels,
&export_options,&export_info);
(void) WriteBlob(image,export_info.bytes_exported,pixels);
}
if (LocaleCompare(image_info->magick,"CMYKA") == 0)
{
if (!MagickMonitorFormatted(300,400,&image->exception,
SaveImageText,image->filename,
image->columns,image->rows))
break;
if (image_info->interlace == PartitionInterlace)
{
CloseBlob(image);
AppendImageFormat("A",image->filename);
status=OpenBlob(image_info,image,WriteBinaryBlobMode,
&image->exception);
if (status == False)
ThrowWriterException(FileOpenError,UnableToOpenFile,image);
}
for (y=0; y < (long) image->rows; y++)
{
p=AcquireImagePixels(image,0,y,image->columns,1,
&image->exception);
if (p == (const PixelPacket *) NULL)
break;
(void) ExportImagePixelArea(image,AlphaQuantum,quantum_size,pixels,
&export_options,&export_info);
(void) WriteBlob(image,export_info.bytes_exported,pixels);
}
}
if (image_info->interlace == PartitionInterlace)
(void) strlcpy(image->filename,image_info->filename,MaxTextExtent);
if (!MagickMonitorFormatted(400,400,&image->exception,
SaveImageText,image->filename,
image->columns,image->rows))
break;
break;
}
}
if (image->next == (Image *) NULL)
break;
image=SyncNextImageInList(image);
status=MagickMonitorFormatted(scene++,GetImageListLength(image),
&image->exception,SaveImagesText,
image->filename);
if (status == False)
break;
} while (image_info->adjoin);
MagickFreeMemory(pixels);
if (image_info->adjoin)
while (image->previous != (Image *) NULL)
image=image->previous;
CloseBlob(image);
return(True);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% S h e a r I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ShearImage() creates a new image that is a shear_image copy of an existing
% one. Shearing slides one edge of an image along the X or Y axis, creating
% a parallelogram. An X direction shear slides an edge along the X axis,
% while a Y direction shear slides an edge along the Y axis. The amount of
% the shear is controlled by a shear angle. For X direction shears, x_shear
% is measured relative to the Y axis, and similarly, for Y direction shears
% y_shear is measured relative to the X axis. Empty triangles left over from
% shearing the image are filled with the background color defined by member
% 'background_color' of the image.. ShearImage() allocates the memory
% necessary for the new Image structure and returns a pointer to the new image.
%
% ShearImage() is based on the paper "A Fast Algorithm for General Raster
% Rotatation" by Alan W. Paeth.
%
% The format of the ShearImage method is:
%
% Image *ShearImage(const Image *image,const double x_shear,
% const double y_shear,ExceptionInfo *exception)
%
% A description of each parameter follows.
%
% o image: the image.
%
% o x_shear, y_shear: Specifies the number of degrees to shear the image.
%
% o exception: Return any errors or warnings in this structure.
%
%
*/
MagickExport Image *ShearImage(const Image *image,const double x_shear,
const double y_shear,ExceptionInfo *exception)
{
Image
*integral_image,
*shear_image;
long
x_offset,
y_offset;
PointInfo
shear;
RectangleInfo
border_info;
unsigned long
y_width;
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
if ((x_shear != 0.0) && (fmod(x_shear,90.0) == 0.0))
ThrowImageException(ImageError,"AngleIsDiscontinuous");
if ((y_shear != 0.0) && (fmod(y_shear,90.0) == 0.0))
ThrowImageException(ImageError,"AngleIsDiscontinuous");
/*
Initialize shear angle.
*/
integral_image=CloneImage(image,0,0,MagickTrue,exception);
if (integral_image == (Image *) NULL)
ThrowImageException(ResourceLimitError,"MemoryAllocationFailed");
shear.x=(-tan(DegreesToRadians(x_shear)));
shear.y=tan(DegreesToRadians(y_shear));
if ((shear.x == 0.0) && (shear.y == 0.0))
return(integral_image);
if (SetImageStorageClass(integral_image,DirectClass) == MagickFalse)
{
InheritException(exception,&integral_image->exception);
integral_image=DestroyImage(integral_image);
return(integral_image);
}
if (integral_image->matte == MagickFalse)
(void) SetImageOpacity(integral_image,OpaqueOpacity);
/*
Compute image size.
*/
y_width=image->columns+(long) (fabs(shear.x)*image->rows+0.5);
x_offset=(long) (image->columns+((fabs(shear.x)*image->rows)-
image->columns)/2.0+0.5);
y_offset=(long) (image->rows+((fabs(shear.y)*y_width+0.5)-image->rows)/2.0+
0.5);
/*
Surround image with border.
*/
integral_image->border_color=integral_image->background_color;
integral_image->compose=CopyCompositeOp;
border_info.width=(unsigned long) x_offset;
border_info.height=(unsigned long) y_offset;
shear_image=BorderImage(integral_image,&border_info,exception);
if (shear_image == (Image *) NULL)
ThrowImageException(ResourceLimitError,"MemoryAllocationFailed");
integral_image=DestroyImage(integral_image);
/*
Shear the image.
*/
if (shear_image->matte == MagickFalse)
(void) SetImageOpacity(shear_image,OpaqueOpacity);
XShearImage(shear_image,shear.x,image->columns,image->rows,x_offset,
((long) shear_image->rows-image->rows)/2);
YShearImage(shear_image,shear.y,y_width,image->rows,
((long) shear_image->columns-y_width)/2,y_offset);
CropToFitImage(&shear_image,shear.x,shear.y,(MagickRealType) image->columns,
(MagickRealType) image->rows,MagickFalse,exception);
shear_image->compose=image->compose;
shear_image->page.width=0;
shear_image->page.height=0;
return(shear_image);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% R o t a t e I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% RotateImage() creates a new image that is a rotated copy of an existing
% one. Positive angles rotate counter-clockwise (right-hand rule), while
% negative angles rotate clockwise. Rotated images are usually larger than
% the originals and have 'empty' triangular corners. X axis. Empty
% triangles left over from shearing the image are filled with the background
% color defined by member 'background_color' of the image. RotateImage
% allocates the memory necessary for the new Image structure and returns a
% pointer to the new image.
%
% RotateImage() is based on the paper "A Fast Algorithm for General
% Raster Rotatation" by Alan W. Paeth. RotateImage is adapted from a similar
% method based on the Paeth paper written by Michael Halle of the Spatial
% Imaging Group, MIT Media Lab.
%
% The format of the RotateImage method is:
%
% Image *RotateImage(const Image *image,const double degrees,
% ExceptionInfo *exception)
%
% A description of each parameter follows.
%
% o image: the image.
%
% o degrees: Specifies the number of degrees to rotate the image.
%
% o exception: Return any errors or warnings in this structure.
%
%
*/
MagickExport Image *RotateImage(const Image *image,const double degrees,
ExceptionInfo *exception)
{
Image
*integral_image,
*rotate_image;
long
x_offset,
y_offset;
MagickRealType
angle;
PointInfo
shear;
RectangleInfo
border_info;
unsigned long
height,
rotations,
width,
y_width;
/*
Adjust rotation angle.
*/
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
assert(exception != (ExceptionInfo *) NULL);
assert(exception->signature == MagickSignature);
angle=degrees;
while (angle < -45.0)
angle+=360.0;
for (rotations=0; angle > 45.0; rotations++)
angle-=90.0;
rotations%=4;
/*
Calculate shear equations.
*/
integral_image=IntegralRotateImage(image,rotations,exception);
if (integral_image == (Image *) NULL)
ThrowImageException(ResourceLimitError,"MemoryAllocationFailed");
shear.x=(-tan((double) DegreesToRadians(angle)/2.0));
shear.y=sin((double) DegreesToRadians(angle));
if ((shear.x == 0.0) && (shear.y == 0.0))
return(integral_image);
if (SetImageStorageClass(integral_image,DirectClass) == MagickFalse)
{
InheritException(exception,&integral_image->exception);
integral_image=DestroyImage(integral_image);
return(integral_image);
}
if (integral_image->matte == MagickFalse)
(void) SetImageOpacity(integral_image,OpaqueOpacity);
/*
Compute image size.
*/
width=image->columns;
height=image->rows;
if ((rotations == 1) || (rotations == 3))
{
width=image->rows;
height=image->columns;
}
y_width=width+(long) (fabs(shear.x)*height+0.5);
x_offset=(long) (width+((fabs(shear.y)*height+0.5)-width)/2.0+0.5);
y_offset=(long) (height+((fabs(shear.y)*y_width+0.5)-height)/2.0+0.5);
/*
Surround image with a border.
*/
integral_image->border_color=integral_image->background_color;
integral_image->compose=CopyCompositeOp;
border_info.width=(unsigned long) x_offset;
border_info.height=(unsigned long) y_offset;
rotate_image=BorderImage(integral_image,&border_info,exception);
integral_image=DestroyImage(integral_image);
if (rotate_image == (Image *) NULL)
ThrowImageException(ResourceLimitError,"MemoryAllocationFailed");
/*
Rotate the image.
*/
XShearImage(rotate_image,shear.x,width,height,x_offset,
((long) rotate_image->rows-height)/2);
YShearImage(rotate_image,shear.y,y_width,height,
((long) rotate_image->columns-y_width)/2,y_offset);
XShearImage(rotate_image,shear.x,y_width,rotate_image->rows,
((long) rotate_image->columns-y_width)/2,0);
CropToFitImage(&rotate_image,shear.x,shear.y,(MagickRealType) width,
(MagickRealType) height,MagickTrue,exception);
rotate_image->compose=image->compose;
rotate_image->page.width=0;
rotate_image->page.height=0;
return(rotate_image);
}
static Image *ReadPlasmaImage(const ImageInfo *image_info,
ExceptionInfo *exception)
{
#define PlasmaImageTag "Plasma/Image"
Image
*image;
ImageInfo
*read_info;
long
y;
MagickBooleanType
status;
register long
x;
register PixelPacket
*q;
register unsigned long
i;
SegmentInfo
segment_info;
unsigned long
depth,
max_depth;
/*
Recursively apply plasma to the image.
*/
read_info=CloneImageInfo(image_info);
SetImageInfoBlob(read_info,(void *) NULL,0);
(void) FormatMagickString(read_info->filename,MaxTextExtent,
"gradient:%s",image_info->filename);
image=ReadImage(read_info,exception);
read_info=DestroyImageInfo(read_info);
if (image == (Image *) NULL)
return((Image *) NULL);
image->storage_class=DirectClass;
for (y=0; y < (long) image->rows; y++)
{
q=GetImagePixels(image,0,y,image->columns,1);
if (q == (PixelPacket *) NULL)
break;
for (x=0; x < (long) image->columns; x++)
{
q->opacity=(Quantum) (QuantumRange/2);
q++;
}
if (SyncImagePixels(image) == MagickFalse)
break;
}
segment_info.x1=0;
segment_info.y1=0;
segment_info.x2=(double) image->columns-1;
segment_info.y2=(double) image->rows-1;
if (LocaleCompare(image_info->filename,"fractal") == 0)
{
/*
Seed pixels before recursion.
*/
PlasmaPixel(image,segment_info.x1,segment_info.y1);
PlasmaPixel(image,segment_info.x1,(segment_info.y1+segment_info.y2)/2);
PlasmaPixel(image,segment_info.x1,segment_info.y2);
PlasmaPixel(image,(segment_info.x1+segment_info.x2)/2,segment_info.y1);
PlasmaPixel(image,(segment_info.x1+segment_info.x2)/2,
(segment_info.y1+segment_info.y2)/2);
PlasmaPixel(image,(segment_info.x1+segment_info.x2)/2,segment_info.y2);
PlasmaPixel(image,segment_info.x2,segment_info.y1);
PlasmaPixel(image,segment_info.x2,(segment_info.y1+segment_info.y2)/2);
PlasmaPixel(image,segment_info.x2,segment_info.y2);
}
i=(unsigned long) MagickMax(image->columns,image->rows)/2;
for (max_depth=0; i != 0; max_depth++)
i>>=1;
for (depth=1; ; depth++)
{
if (PlasmaImage(image,&segment_info,0,depth) != MagickFalse)
break;
if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
(QuantumTick((MagickOffsetType) depth,max_depth) != MagickFalse))
{
status=image->progress_monitor(PlasmaImageTag,(MagickOffsetType) depth,
max_depth,image->client_data);
if (status == MagickFalse)
break;
}
}
(void) SetImageOpacity(image,OpaqueOpacity);
return(GetFirstImageInList(image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% P a i n t T r a n s p a r e n t I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% PaintTransparentImage() changes the opacity value associated with any pixel
% that matches color to the value defined by opacity.
%
% By default color must match a particular pixel color exactly. However,
% in many cases two colors may differ by a small amount. Fuzz defines
% how much tolerance is acceptable to consider two colors as the same.
% For example, set fuzz to 10 and the color red at intensities of 100 and
% 102 respectively are now interpreted as the same color.
%
% The format of the PaintTransparentImage method is:
%
% MagickBooleanType PaintTransparentImage(Image *image,
% const MagickPixelPacket *target,const Quantum opacity)
%
% A description of each parameter follows:
%
% o image: The image.
%
% o target: The RGB value of the target color.
%
% o opacity: The replacement opacity value.
%
*/
MagickExport MagickBooleanType PaintTransparentImage(Image *image,
const MagickPixelPacket *target,const Quantum opacity)
{
#define PaintTransparentImageTag "Transparent/Image"
long
y;
MagickBooleanType
status;
MagickPixelPacket
pixel;
register IndexPacket
*indexes;
register long
x;
register PixelPacket
*q;
/*
Make image color transparent.
*/
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
assert(target != (MagickPixelPacket *) NULL);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
if (SetImageStorageClass(image,DirectClass) == MagickFalse)
return(MagickFalse);
if (image->matte == MagickFalse)
(void) SetImageOpacity(image,OpaqueOpacity);
GetMagickPixelPacket(image,&pixel);
for (y=0; y < (long) image->rows; y++)
{
q=GetImagePixels(image,0,y,image->columns,1);
if (q == (PixelPacket *) NULL)
break;
indexes=GetIndexes(image);
for (x=0; x < (long) image->columns; x++)
{
SetMagickPixelPacket(image,q,indexes+x,&pixel);
if (IsMagickColorSimilar(&pixel,target) != MagickFalse)
q->opacity=opacity;
q++;
}
if (SyncImagePixels(image) == MagickFalse)
break;
if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
(QuantumTick(y,image->rows) != MagickFalse))
{
status=image->progress_monitor(PaintTransparentImageTag,y,image->rows,
image->client_data);
if (status == MagickFalse)
break;
}
}
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% P a i n t F l o o d f i l l I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% PaintFloodfill() changes the color value of any pixel that matches
% target and is an immediate neighbor. If the method FillToBorderMethod is
% specified, the color value is changed for any neighbor pixel that does not
% match the bordercolor member of image.
%
% By default target must match a particular pixel color exactly.
% However, in many cases two colors may differ by a small amount. The
% fuzz member of image defines how much tolerance is acceptable to
% consider two colors as the same. For example, set fuzz to 10 and the
% color red at intensities of 100 and 102 respectively are now
% interpreted as the same color for the purposes of the floodfill.
%
% The format of the PaintFloodfillImage method is:
%
% MagickBooleanType PaintFloodfillImage(Image *image,
% const ChannelType channel,const MagickPixelPacket target,
% const long x_offset,const long y_offset,const DrawInfo *draw_info,
% const PaintMethod method)
%
% A description of each parameter follows:
%
% o image: The image.
%
% o channel: The channel(s).
%
% o target: The RGB value of the target color.
%
% o x_offset,y_offset: The starting location of the operation.
%
% o draw_info: The draw info.
%
% o method: Choose either FloodfillMethod or FillToBorderMethod.
%
*/
MagickExport MagickBooleanType PaintFloodfillImage(Image *image,
const ChannelType channel,const MagickPixelPacket *target,
const long x_offset,const long y_offset,const DrawInfo *draw_info,
const PaintMethod method)
{
#define MaxStacksize (1UL << 15)
#define PushSegmentStack(up,left,right,delta) \
{ \
if (s >= (segment_stack+MaxStacksize)) \
ThrowBinaryException(DrawError,"SegmentStackOverflow",image->filename) \
else \
{ \
if ((((up)+(delta)) >= 0) && (((up)+(delta)) < (long) image->rows)) \
{ \
s->x1=(double) (left); \
s->y1=(double) (up); \
s->x2=(double) (right); \
s->y2=(double) (delta); \
s++; \
} \
} \
}
Image
*floodplane_image;
long
offset,
start,
x1,
x2,
y;
MagickBooleanType
skip;
MagickPixelPacket
fill,
pixel;
PixelPacket
fill_color;
register const PixelPacket
*p;
register IndexPacket
*indexes;
register long
x;
register PixelPacket
*q;
register SegmentInfo
*s;
SegmentInfo
*segment_stack;
/*
Check boundary conditions.
*/
assert(image != (Image *) NULL);
assert(image->signature == MagickSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
assert(draw_info != (DrawInfo *) NULL);
assert(draw_info->signature == MagickSignature);
if ((x_offset < 0) || (x_offset >= (long) image->columns))
return(MagickFalse);
if ((y_offset < 0) || (y_offset >= (long) image->rows))
return(MagickFalse);
if (SetImageStorageClass(image,DirectClass) == MagickFalse)
return(MagickFalse);
if (image->matte == MagickFalse)
(void) SetImageOpacity(image,OpaqueOpacity);
/*
Set floodfill state.
*/
floodplane_image=CloneImage(image,image->columns,image->rows,MagickTrue,
&image->exception);
if (floodplane_image == (Image *) NULL)
return(MagickFalse);
(void) SetImageOpacity(floodplane_image,OpaqueOpacity);
segment_stack=(SegmentInfo *) AcquireQuantumMemory(MaxStacksize,
sizeof(*segment_stack));
if (segment_stack == (SegmentInfo *) NULL)
{
floodplane_image=DestroyImage(floodplane_image);
ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
image->filename);
}
/*
Push initial segment on stack.
*/
x=x_offset;
y=y_offset;
start=0;
s=segment_stack;
PushSegmentStack(y,x,x,1);
PushSegmentStack(y+1,x,x,-1);
GetMagickPixelPacket(image,&fill);
GetMagickPixelPacket(image,&pixel);
while (s > segment_stack)
{
/*
Pop segment off stack.
*/
s--;
x1=(long) s->x1;
x2=(long) s->x2;
offset=(long) s->y2;
y=(long) s->y1+offset;
/*
Recolor neighboring pixels.
*/
p=AcquireImagePixels(image,0,y,(unsigned long) (x1+1),1,&image->exception);
q=GetImagePixels(floodplane_image,0,y,(unsigned long) (x1+1),1);
if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL))
break;
indexes=GetIndexes(image);
p+=x1;
q+=x1;
for (x=x1; x >= 0; x--)
{
if (q->opacity == (Quantum) TransparentOpacity)
break;
SetMagickPixelPacket(image,p,indexes+x,&pixel);
if (method == FloodfillMethod)
{
if (IsMagickColorSimilar(&pixel,target) == MagickFalse)
break;
}
else
if (IsMagickColorSimilar(&pixel,target) != MagickFalse)
break;
q->opacity=(Quantum) TransparentOpacity;
p--;
q--;
}
if (SyncImagePixels(floodplane_image) == MagickFalse)
break;
skip=x >= x1 ? MagickTrue : MagickFalse;
if (skip == MagickFalse)
{
start=x+1;
if (start < x1)
PushSegmentStack(y,start,x1-1,-offset);
x=x1+1;
}
do
{
if (skip == MagickFalse)
{
if (x < (long) image->columns)
{
p=AcquireImagePixels(image,x,y,image->columns-x,1,
&image->exception);
q=GetImagePixels(floodplane_image,x,y,image->columns-x,1);
if ((p == (const PixelPacket *) NULL) ||
(q == (PixelPacket *) NULL))
break;
indexes=GetIndexes(image);
for ( ; x < (long) image->columns; x++)
{
if (q->opacity == (Quantum) TransparentOpacity)
break;
SetMagickPixelPacket(image,p,indexes+x,&pixel);
if (method == FloodfillMethod)
{
if (IsMagickColorSimilar(&pixel,target) == MagickFalse)
break;
}
else
if (IsMagickColorSimilar(&pixel,target) != MagickFalse)
break;
q->opacity=(Quantum) TransparentOpacity;
p++;
q++;
}
if (SyncImagePixels(floodplane_image) == MagickFalse)
break;
}
PushSegmentStack(y,start,x-1,offset);
if (x > (x2+1))
PushSegmentStack(y,x2+1,x-1,-offset);
}
skip=MagickFalse;
x++;
if (x <= x2)
{
p=AcquireImagePixels(image,x,y,(unsigned long) (x2-x+1),1,
&image->exception);
q=GetImagePixels(floodplane_image,x,y,(unsigned long) (x2-x+1),1);
if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL))
break;
indexes=GetIndexes(image);
for ( ; x <= x2; x++)
{
if (q->opacity == (Quantum) TransparentOpacity)
break;
SetMagickPixelPacket(image,p,indexes+x,&pixel);
if (method == FloodfillMethod)
{
if (IsMagickColorSimilar(&pixel,target) != MagickFalse)
break;
}
else
if (IsMagickColorSimilar(&pixel,target) == MagickFalse)
break;
p++;
q++;
}
}
start=x;
} while (x <= x2);
}
for (y=0; y < (long) image->rows; y++)
{
/*
Tile fill color onto floodplane.
*/
p=AcquireImagePixels(floodplane_image,0,y,image->columns,1,
&image->exception);
q=GetImagePixels(image,0,y,image->columns,1);
if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL))
break;
indexes=GetIndexes(image);
for (x=0; x < (long) image->columns; x++)
{
if (p->opacity != OpaqueOpacity)
{
fill_color=GetFillColor(draw_info,x,y);
SetMagickPixelPacket(image,&fill_color,(IndexPacket *) NULL,&fill);
if (image->colorspace == CMYKColorspace)
ConvertRGBToCMYK(&fill);
if ((channel & RedChannel) != 0)
q->red=RoundToQuantum(fill.red);
if ((channel & GreenChannel) != 0)
q->green=RoundToQuantum(fill.green);
if ((channel & BlueChannel) != 0)
q->blue=RoundToQuantum(fill.blue);
if ((channel & OpacityChannel) != 0)
q->opacity=RoundToQuantum(fill.opacity);
if (((channel & IndexChannel) != 0) &&
(image->colorspace == CMYKColorspace))
indexes[x]=RoundToQuantum(fill.index);
}
p++;
q++;
}
if (SyncImagePixels(image) == MagickFalse)
break;
}
segment_stack=(SegmentInfo *) RelinquishMagickMemory(segment_stack);
floodplane_image=DestroyImage(floodplane_image);
return(y == (long) image->rows ? MagickTrue : MagickFalse);
}
