/*
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% %
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% N e w P i x e l R e g i o n I t e r a t o r %
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%
% NewPixelRegionIterator() returns a new pixel iterator.
%
% The format of the NewPixelRegionIterator method is:
%
% PixelIterator *NewPixelRegionIterator(MagickWand *wand,const ssize_t x,
% const ssize_t y,const size_t width,const size_t height)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o x,y,columns,rows: These values define the perimeter of a region of
% pixels.
%
*/
WandExport PixelIterator *NewPixelRegionIterator(MagickWand *wand,
const ssize_t x,const ssize_t y,const size_t width,const size_t height)
{
CacheView
*view;
const char
*quantum;
ExceptionInfo
*exception;
Image
*image;
PixelIterator
*iterator;
size_t
depth;
assert(wand != (MagickWand *) NULL);
depth=MAGICKCORE_QUANTUM_DEPTH;
quantum=GetMagickQuantumDepth(&depth);
if (depth != MAGICKCORE_QUANTUM_DEPTH)
ThrowWandFatalException(WandError,"QuantumDepthMismatch",quantum);
if ((width == 0) || (height == 0))
ThrowWandFatalException(WandError,"ZeroRegionSize",quantum);
image=GetImageFromMagickWand(wand);
if (image == (Image *) NULL)
return((PixelIterator *) NULL);
exception=AcquireExceptionInfo();
view=AcquireVirtualCacheView(image,exception);
if (view == (CacheView *) NULL)
return((PixelIterator *) NULL);
iterator=(PixelIterator *) AcquireMagickMemory(sizeof(*iterator));
if (iterator == (PixelIterator *) NULL)
ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",
wand->name);
(void) ResetMagickMemory(iterator,0,sizeof(*iterator));
iterator->id=AcquireWandId();
(void) FormatLocaleString(iterator->name,MaxTextExtent,"%s-%.20g",
PixelIteratorId,(double) iterator->id);
iterator->exception=exception;
iterator->view=view;
SetGeometry(image,&iterator->region);
iterator->region.width=width;
iterator->region.height=height;
iterator->region.x=x;
iterator->region.y=y;
iterator->pixel_wands=NewPixelWands(iterator->region.width);
iterator->y=0;
iterator->debug=IsEventLogging();
if (iterator->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",iterator->name);
iterator->signature=WandSignature;
return(iterator);
}
/*
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% N e w P i x e l R e g i o n I t e r a t o r %
% %
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% NewPixelRegionIterator() returns a new pixel iterator.
%
% The format of the NewPixelRegionIterator method is:
%
% PixelIterator NewPixelRegionIterator(MagickWand *wand,const long x,
% const long y,const unsigned long columns,const unsigned long rows,
% const MagickBooleanType modify)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o x,y,columns,rows: These values define the perimeter of a region of
% pixels.
%
*/
WandExport PixelIterator *NewPixelRegionIterator(MagickWand *wand,const long x,
const long y,const unsigned long columns,const unsigned long rows)
{
const char
*quantum;
Image
*image;
PixelIterator
*iterator;
unsigned long
depth;
ViewInfo
*view;
assert(wand != (MagickWand *) NULL);
depth=MAGICKCORE_QUANTUM_DEPTH;
quantum=GetMagickQuantumDepth(&depth);
if (depth != MAGICKCORE_QUANTUM_DEPTH)
ThrowWandFatalException(WandError,"QuantumDepthMismatch",quantum);
if ((columns == 0) || (rows == 0))
ThrowWandFatalException(WandError,"ZeroRegionSize",quantum);
image=GetImageFromMagickWand(wand);
if (image == (Image *) NULL)
return((PixelIterator *) NULL);
view=OpenCacheView(image);
if (view == (ViewInfo *) NULL)
return((PixelIterator *) NULL);
iterator=(PixelIterator *) AcquireMagickMemory(sizeof(*iterator));
if (iterator == (PixelIterator *) NULL)
ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",
wand->name);
(void) ResetMagickMemory(iterator,0,sizeof(*iterator));
iterator->id=AcquireWandId();
(void) FormatMagickString(iterator->name,MaxTextExtent,"%s-%lu",
PixelIteratorId,iterator->id);
iterator->exception=AcquireExceptionInfo();
iterator->view=view;
SetGeometry(image,&iterator->region);
iterator->region.width=columns;
iterator->region.height=rows;
iterator->region.x=x;
iterator->region.y=y;
iterator->pixel_wands=NewPixelWands(iterator->region.width);
iterator->y=0;
iterator->debug=IsEventLogging();
if (iterator->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",iterator->name);
iterator->signature=WandSignature;
return(iterator);
}
/*
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% %
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% N e w P i x e l I t e r a t o r %
% %
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% %
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%
% NewPixelIterator() returns a new pixel iterator.
%
% The format of the NewPixelIterator method is:
%
% PixelIterator *NewPixelIterator(MagickWand *wand)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
*/
WandExport PixelIterator *NewPixelIterator(MagickWand *wand)
{
const char
*quantum;
Image
*image;
PixelIterator
*iterator;
size_t
depth;
CacheView
*view;
depth=MAGICKCORE_QUANTUM_DEPTH;
quantum=GetMagickQuantumDepth(&depth);
if (depth != MAGICKCORE_QUANTUM_DEPTH)
ThrowWandFatalException(WandError,"QuantumDepthMismatch",quantum);
assert(wand != (MagickWand *) NULL);
image=GetImageFromMagickWand(wand);
if (image == (Image *) NULL)
return((PixelIterator *) NULL);
view=AcquireCacheView(image);
if (view == (CacheView *) NULL)
return((PixelIterator *) NULL);
iterator=(PixelIterator *) AcquireMagickMemory(sizeof(*iterator));
if (iterator == (PixelIterator *) NULL)
ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",
GetExceptionMessage(errno));
(void) ResetMagickMemory(iterator,0,sizeof(*iterator));
iterator->id=AcquireWandId();
(void) FormatMagickString(iterator->name,MaxTextExtent,"%s-%.20g",
PixelIteratorId,(double) iterator->id);
iterator->exception=AcquireExceptionInfo();
iterator->view=view;
SetGeometry(image,&iterator->region);
iterator->region.width=image->columns;
iterator->region.height=image->rows;
iterator->region.x=0;
iterator->region.y=0;
iterator->pixel_wands=NewPixelWands(iterator->region.width);
iterator->y=0;
iterator->debug=IsEventLogging();
if (iterator->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",iterator->name);
iterator->signature=WandSignature;
return(iterator);
}
/*
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% %
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% N e w M a g i c k W a n d %
% %
% %
% %
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%
% NewMagickWand() returns a wand required for all other methods in the API.
%
% The format of the NewMagickWand method is:
%
% MagickWand *NewMagickWand(void)
%
*/
WandExport MagickWand *NewMagickWand(void)
{
const char
*quantum;
MagickWand
*wand;
unsigned long
depth;
depth=QuantumDepth;
quantum=GetMagickQuantumDepth(&depth);
if (depth != QuantumDepth)
ThrowWandFatalException(WandError,"QuantumDepthMismatch",quantum);
wand=(MagickWand *) AcquireMagickMemory(sizeof(*wand));
if (wand == (MagickWand *) NULL)
{
char
*message;
message=GetExceptionMessage(errno);
ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",
message);
message=DestroyString(message);
}
(void) ResetMagickMemory(wand,0,sizeof(*wand));
wand->id=AcquireWandId();
(void) FormatMagickString(wand->name,MaxTextExtent,"%s-%lu",MagickWandId,
wand->id);
wand->exception=AcquireExceptionInfo();
wand->image_info=AcquireImageInfo();
wand->quantize_info=CloneQuantizeInfo((QuantizeInfo *) NULL);
wand->images=NewImageList();
wand->debug=IsEventLogging();
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
wand->signature=WandSignature;
return(wand);
}
/*
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+ A c q u i r e W a n d C L I %
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% AcquireMagickCLI() creates a new CLI wand (an expanded form of Magick
% Wand). The given image_info and exception is included as is if provided.
%
% Use DestroyMagickCLI() to dispose of the CLI wand when it is no longer
% needed.
%
% The format of the NewMagickWand method is:
%
% MagickCLI *AcquireMagickCLI(ImageInfo *image_info,
% ExceptionInfo *exception)
%
*/
WandExport MagickCLI *AcquireMagickCLI(ImageInfo *image_info,
ExceptionInfo *exception)
{
MagickCLI
*cli_wand;
/* precaution - as per NewMagickWand() */
{
size_t depth = MAGICKCORE_QUANTUM_DEPTH;
const char *quantum = GetMagickQuantumDepth(&depth);
if (depth != MAGICKCORE_QUANTUM_DEPTH)
ThrowWandFatalException(WandError,"QuantumDepthMismatch",quantum);
}
/* allocate memory for MgaickCLI */
cli_wand=(MagickCLI *) AcquireMagickMemory(sizeof(*cli_wand));
if (cli_wand == (MagickCLI *) NULL)
{
ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",
GetExceptionMessage(errno));
return((MagickCLI *)NULL);
}
/* Initialize Wand Part of MagickCLI
FUTURE: this is a repeat of code from NewMagickWand()
However some parts may be given fro man external source!
*/
cli_wand->wand.id=AcquireWandId();
(void) FormatLocaleString(cli_wand->wand.name,MaxTextExtent,
"%s-%.20g","MagickWandCLI", (double) cli_wand->wand.id);
cli_wand->wand.images=NewImageList();
if ( image_info == (ImageInfo *)NULL)
cli_wand->wand.image_info=AcquireImageInfo();
else
cli_wand->wand.image_info=image_info;
if ( exception == (ExceptionInfo *)NULL)
cli_wand->wand.exception=AcquireExceptionInfo();
else
cli_wand->wand.exception=exception;
cli_wand->wand.debug=IsEventLogging();
cli_wand->wand.signature=WandSignature;
/* Initialize CLI Part of MagickCLI */
cli_wand->draw_info=CloneDrawInfo(cli_wand->wand.image_info,(DrawInfo *) NULL);
cli_wand->quantize_info=AcquireQuantizeInfo(cli_wand->wand.image_info);
cli_wand->process_flags=MagickCommandOptionFlags; /* assume "magick" CLI */
cli_wand->command=(const OptionInfo *)NULL; /* no option at this time */
cli_wand->image_list_stack=(Stack *)NULL;
cli_wand->image_info_stack=(Stack *)NULL;
/* default exception location...
EG: sprintf(locaiton, filename, line, column);
*/
cli_wand->location="from \"%s\""; /* location format using arguments: */
/* filename, line, column */
cli_wand->filename="unknown"; /* script filename, unknown source */
cli_wand->line=0; /* line from script OR CLI argument */
cli_wand->column=0; /* column from script */
cli_wand->signature=WandSignature;
if (IfMagickTrue(cli_wand->wand.debug))
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",cli_wand->wand.name);
return(cli_wand);
}