resample.c File Reference

#include "MagickCore/studio.h"
#include "MagickCore/artifact.h"
#include "MagickCore/color-private.h"
#include "MagickCore/cache.h"
#include "MagickCore/draw.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/gem.h"
#include "MagickCore/image.h"
#include "MagickCore/image-private.h"
#include "MagickCore/log.h"
#include "MagickCore/magick.h"
#include "MagickCore/memory_.h"
#include "MagickCore/pixel.h"
#include "MagickCore/pixel-accessor.h"
#include "MagickCore/quantum.h"
#include "MagickCore/random_.h"
#include "MagickCore/resample.h"
#include "MagickCore/resize.h"
#include "MagickCore/resize-private.h"
#include "MagickCore/transform.h"
#include "MagickCore/signature-private.h"
#include "MagickCore/utility.h"
#include "MagickCore/utility-private.h"

Include dependency graph for resample.c:

Go to the source code of this file.

Data Structures
struct	_ResampleFilter
Defines
#define	EWA   1
#define	EWA_CLAMP   1
#define	FILTER_LUT   1
#define	DEBUG_ELLIPSE   0
#define	DEBUG_HIT_MISS   0
#define	DEBUG_NO_PIXEL_HIT   0
#define	WLUT_WIDTH   1024
#define	DEBUG_HIT_MISS   0
Functions
MagickExport ResampleFilter *	AcquireResampleFilter (const Image *image, ExceptionInfo *exception)
MagickExport ResampleFilter *	DestroyResampleFilter (ResampleFilter *resample_filter)
MagickExport MagickBooleanType	ResamplePixelColor (ResampleFilter *resample_filter, const double u0, const double v0, PixelInfo *pixel)
static void	ClampUpAxes (const double dux, const double dvx, const double duy, const double dvy, double *major_mag, double *minor_mag, double *major_unit_x, double *major_unit_y, double *minor_unit_x, double *minor_unit_y)
MagickExport void	ScaleResampleFilter (ResampleFilter *resample_filter, const double dux, const double duy, const double dvx, const double dvy)
MagickExport void	SetResampleFilter (ResampleFilter *resample_filter, const FilterTypes filter, const double blur)
MagickExport MagickBooleanType	SetResampleFilterInterpolateMethod (ResampleFilter *resample_filter, const PixelInterpolateMethod method)
MagickExport MagickBooleanType	SetResampleFilterVirtualPixelMethod (ResampleFilter *resample_filter, const VirtualPixelMethod method)

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Define Documentation

#define DEBUG_ELLIPSE   0

Definition at line 78 of file resample.c.

#define DEBUG_HIT_MISS   0

Definition at line 79 of file resample.c.

#define DEBUG_HIT_MISS   0

Definition at line 79 of file resample.c.

#define DEBUG_NO_PIXEL_HIT   0

Definition at line 80 of file resample.c.

#define EWA   1

Definition at line 71 of file resample.c.

#define EWA_CLAMP   1

Definition at line 73 of file resample.c.

#define FILTER_LUT   1

Definition at line 75 of file resample.c.

#define WLUT_WIDTH   1024

Definition at line 83 of file resample.c.

Referenced by ResamplePixelColor(), ScaleResampleFilter(), and SetResampleFilter().

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Function Documentation

MagickExport ResampleFilter* AcquireResampleFilter	(	const Image *	image,
		ExceptionInfo *	exception
	)

Definition at line 204 of file resample.c.

References _Image::signature, MagickSignature, _Image::debug, MagickFalse, LogMagickEvent(), TraceEvent, GetMagickModule, _Image::filename, _ExceptionInfo::signature, AcquireMagickMemory(), ThrowFatalException, ResourceLimitFatalError, ResetMagickMemory(), _ResampleFilter::exception, _ResampleFilter::image, ReferenceImage(), _ResampleFilter::view, AcquireCacheView(), _ResampleFilter::debug, IsEventLogging(), _ResampleFilter::signature, _ResampleFilter::image_area, _Image::columns, _Image::rows, _ResampleFilter::average_defined, SetResampleFilter(), _Image::filter, _Image::blur, SetResampleFilterInterpolateMethod(), _Image::interpolate, SetResampleFilterVirtualPixelMethod(), and GetImageVirtualPixelMethod().

Referenced by CompositeImage(), and AcquireResampleFilterThreadSet().

static void ClampUpAxes	(	const double	dux,
		const double	dvx,
		const double	duy,
		const double	dvy,
		double *	major_mag,
		double *	minor_mag,
		double *	major_unit_x,
		double *	major_unit_y,
		double *	minor_unit_x,
		double *	minor_unit_y
	)		[inline, static]

Definition at line 698 of file resample.c.

Referenced by ScaleResampleFilter().

MagickExport ResampleFilter* DestroyResampleFilter

(

ResampleFilter *

resample_filter

)

Definition at line 267 of file resample.c.

References _ResampleFilter::signature, MagickSignature, _ResampleFilter::image, _ResampleFilter::debug, MagickFalse, LogMagickEvent(), TraceEvent, GetMagickModule, _Image::filename, _ResampleFilter::view, DestroyCacheView(), DestroyImage(), DestroyResizeFilter(), and RelinquishMagickMemory().

Referenced by CompositeImage(), and DestroyResampleFilterThreadSet().

MagickExport MagickBooleanType ResamplePixelColor	(	ResampleFilter *	resample_filter,
		const double	u0,
		const double	v0,
		PixelInfo *	pixel
	)

Definition at line 317 of file resample.c.

References _ResampleFilter::signature, MagickSignature, MagickTrue, _ResampleFilter::do_interpolate, InterpolatePixelInfo(), _ResampleFilter::image, _ResampleFilter::view, _ResampleFilter::interpolate, _ResampleFilter::exception, FormatLocaleFile(), _ResampleFilter::virtual_pixel, BackgroundVirtualPixelMethod, TransparentVirtualPixelMethod, BlackVirtualPixelMethod, GrayVirtualPixelMethod, WhiteVirtualPixelMethod, MaskVirtualPixelMethod, _ResampleFilter::limit_reached, _ResampleFilter::Ulimit, _Image::columns, _ResampleFilter::Vlimit, _Image::rows, UndefinedVirtualPixelMethod, EdgeVirtualPixelMethod, HorizontalTileVirtualPixelMethod, VerticalTileVirtualPixelMethod, DitherVirtualPixelMethod, TileVirtualPixelMethod, MirrorVirtualPixelMethod, RandomVirtualPixelMethod, HorizontalTileEdgeVirtualPixelMethod, VerticalTileEdgeVirtualPixelMethod, CheckerTileVirtualPixelMethod, IntegerInterpolatePixel, AverageInterpolatePixel, _ResampleFilter::average_defined, MagickFalse, GetPixelInfo(), _ResampleFilter::average_pixel, ResizeImage(), BoxFilter, AcquireCacheView(), GetCacheViewVirtualPixels(), DestroyCacheView(), DestroyImage(), GetPixelInfoPixel(), QuantumScale, _PixelInfo::alpha, _PixelInfo::red, _PixelInfo::green, _PixelInfo::blue, _Image::background_color, _PixelInfo::colorspace, CMYKColorspace, _PixelInfo::black, _PixelInfo::matte, _ResampleFilter::slope, _ResampleFilter::Uwidth, _ResampleFilter::A, _ResampleFilter::B, _ResampleFilter::C, WLUT_WIDTH, _ResampleFilter::filter_lut, GetResizeFilterWeight(), GetPixelAlpha(), GetPixelRed(), GetPixelGreen(), GetPixelBlue(), GetPixelBlack(), GetPixelChannels(), QuantumRange, and ClampToQuantum().

Referenced by CompositeImage(), and DistortImage().

MagickExport void ScaleResampleFilter	(	ResampleFilter *	resample_filter,
		const double	dux,
		const double	duy,
		const double	dvx,
		const double	dvy
	)

Definition at line 1021 of file resample.c.

References _ResampleFilter::signature, MagickSignature, _ResampleFilter::limit_reached, MagickFalse, _ResampleFilter::filter, PointFilter, FormatLocaleFile(), ClampUpAxes(), MagickEpsilon, MagickHuge, MagickPI, RadiansToDegrees(), MagickTrue, _ResampleFilter::support, _ResampleFilter::Ulimit, _ResampleFilter::Vlimit, _ResampleFilter::Uwidth, _ResampleFilter::slope, _ResampleFilter::image_area, WLUT_WIDTH, _ResampleFilter::A, _ResampleFilter::B, and _ResampleFilter::C.

Referenced by CompositeImage(), and SetResampleFilter().

MagickExport void SetResampleFilter	(	ResampleFilter *	resample_filter,
		const FilterTypes	filter,
		const double	blur
	)

Definition at line 1229 of file resample.c.

References _ResampleFilter::signature, MagickSignature, _ResampleFilter::do_interpolate, MagickFalse, _ResampleFilter::filter, PointFilter, MagickTrue, UndefinedFilter, RobidouxFilter, AcquireResizeFilter(), _ResampleFilter::image, _ResampleFilter::exception, ThrowMagickException(), GetMagickModule, ModuleError, _ResampleFilter::support, GetResizeFilterSupport(), WLUT_WIDTH, _ResampleFilter::filter_lut, GetResizeFilterWeight(), DestroyResizeFilter(), ScaleResampleFilter(), IsMagickTrue(), GetImageArtifact(), GetMagickPrecision(), and DeleteImageArtifact().

Referenced by CompositeImage(), AcquireResampleFilterThreadSet(), and AcquireResampleFilter().

MagickExport MagickBooleanType SetResampleFilterInterpolateMethod	(	ResampleFilter *	resample_filter,
		const PixelInterpolateMethod	method
	)

Definition at line 1383 of file resample.c.

References _ResampleFilter::signature, MagickSignature, _ResampleFilter::image, _ResampleFilter::debug, MagickFalse, LogMagickEvent(), TraceEvent, GetMagickModule, _Image::filename, _ResampleFilter::interpolate, and MagickTrue.

Referenced by AcquireResampleFilter().

MagickExport MagickBooleanType SetResampleFilterVirtualPixelMethod	(	ResampleFilter *	resample_filter,
		const VirtualPixelMethod	method
	)

Definition at line 1422 of file resample.c.

References _ResampleFilter::signature, MagickSignature, _ResampleFilter::image, _ResampleFilter::debug, MagickFalse, LogMagickEvent(), TraceEvent, GetMagickModule, _Image::filename, _ResampleFilter::virtual_pixel, UndefinedVirtualPixelMethod, SetCacheViewVirtualPixelMethod(), _ResampleFilter::view, and MagickTrue.

Referenced by AcquireResampleFilterThreadSet(), and AcquireResampleFilter().