MagickCore 6.9.12
Data Structures | Macros | Functions
resample.c File Reference
#include "magick/studio.h"
#include "magick/artifact.h"
#include "magick/color-private.h"
#include "magick/cache.h"
#include "magick/draw.h"
#include "magick/exception-private.h"
#include "magick/gem.h"
#include "magick/image.h"
#include "magick/image-private.h"
#include "magick/log.h"
#include "magick/magick.h"
#include "magick/memory_.h"
#include "magick/pixel.h"
#include "magick/pixel-private.h"
#include "magick/quantum.h"
#include "magick/random_.h"
#include "magick/resample.h"
#include "magick/resize.h"
#include "magick/resize-private.h"
#include "magick/resource_.h"
#include "magick/transform.h"
#include "magick/signature-private.h"
#include "magick/token.h"
#include "magick/utility.h"
#include "magick/option.h"
Include dependency graph for resample.c:

Go to the source code of this file.

Data Structures

struct  _ResampleFilter
 

Macros

#define EWA   1 /* Normal EWA handling - raw or clamped */
 
#define EWA_CLAMP   1 /* EWA Clamping from Nicolas Robidoux */
 
#define FILTER_LUT   1 /* Use a LUT rather then direct filter calls */
 
#define DEBUG_ELLIPSE   0 /* output ellipse info for debug */
 
#define DEBUG_HIT_MISS   0 /* output hit/miss pixels (as gnuplot commands) */
 
#define DEBUG_NO_PIXEL_HIT   0 /* Make pixels that fail to hit anything - RED */
 
#define WLUT_WIDTH   1024 /* size of the filter cache */
 
#define DEBUG_HIT_MISS   0 /* only valid if DEBUG_ELLIPSE is enabled */
 

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

Macro Definition Documentation

◆ DEBUG_ELLIPSE

#define DEBUG_ELLIPSE   0 /* output ellipse info for debug */

Definition at line 80 of file resample.c.

◆ DEBUG_HIT_MISS [1/2]

#define DEBUG_HIT_MISS   0 /* output hit/miss pixels (as gnuplot commands) */

Definition at line 81 of file resample.c.

◆ DEBUG_HIT_MISS [2/2]

#define DEBUG_HIT_MISS   0 /* only valid if DEBUG_ELLIPSE is enabled */

Definition at line 81 of file resample.c.

◆ DEBUG_NO_PIXEL_HIT

#define DEBUG_NO_PIXEL_HIT   0 /* Make pixels that fail to hit anything - RED */

Definition at line 82 of file resample.c.

◆ EWA

#define EWA   1 /* Normal EWA handling - raw or clamped */

Definition at line 73 of file resample.c.

◆ EWA_CLAMP

#define EWA_CLAMP   1 /* EWA Clamping from Nicolas Robidoux */

Definition at line 75 of file resample.c.

◆ FILTER_LUT

#define FILTER_LUT   1 /* Use a LUT rather then direct filter calls */

Definition at line 77 of file resample.c.

◆ WLUT_WIDTH

#define WLUT_WIDTH   1024 /* size of the filter cache */

Definition at line 85 of file resample.c.

Function Documentation

◆ AcquireResampleFilter()

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

Definition at line 206 of file resample.c.

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

Referenced by AcquireResampleFilterTLS(), and CompositeImageChannel().

◆ ClampUpAxes()

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 
)
inlinestatic

Definition at line 721 of file resample.c.

Referenced by ScaleResampleFilter().

◆ DestroyResampleFilter()

MagickExport ResampleFilter * DestroyResampleFilter ( ResampleFilter *  resample_filter)

Definition at line 269 of file resample.c.

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

Referenced by CompositeImageChannel(), and DestroyResampleFilterTLS().

◆ ResamplePixelColor()

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

Definition at line 319 of file resample.c.

References _ResampleFilter::A, AcquireVirtualCacheView(), _ResampleFilter::average_defined, _ResampleFilter::average_pixel, AverageInterpolatePixel, _ResampleFilter::B, _Image::background_color, BackgroundVirtualPixelMethod, BlackVirtualPixelMethod, _MagickPixelPacket::blue, _PixelPacket::blue, BoxFilter, _ResampleFilter::C, CheckerTileVirtualPixelMethod, ClampToQuantum(), CMYKColorspace, _MagickPixelPacket::colorspace, _Image::columns, ConstantVirtualPixelMethod, DestroyCacheView(), DestroyImage(), DitherVirtualPixelMethod, _ResampleFilter::do_interpolate, EdgeVirtualPixelMethod, _Image::exception, _ResampleFilter::exception, _ResampleFilter::filter_lut, FormatLocaleFile(), GetCacheViewAuthenticIndexQueue(), GetCacheViewVirtualIndexQueue(), GetCacheViewVirtualPixels(), GetMagickPixelPacket(), GetResizeFilterWeight(), GrayVirtualPixelMethod, _MagickPixelPacket::green, _PixelPacket::green, HorizontalTileEdgeVirtualPixelMethod, HorizontalTileVirtualPixelMethod, _ResampleFilter::image, _MagickPixelPacket::index, IntegerInterpolatePixel, _ResampleFilter::interpolate, InterpolateMagickPixelPacket(), _ResampleFilter::limit_reached, MagickCoreSignature, MagickEpsilon, MagickFalse, MagickTrue, MaskVirtualPixelMethod, _MagickPixelPacket::matte, MirrorVirtualPixelMethod, _MagickPixelPacket::opacity, _PixelPacket::opacity, QuantumRange, QuantumScale, RandomVirtualPixelMethod, _MagickPixelPacket::red, _PixelPacket::red, ResizeImage(), _Image::rows, SetMagickPixelPacket(), _ResampleFilter::signature, _ResampleFilter::slope, TileVirtualPixelMethod, TransparentVirtualPixelMethod, _ResampleFilter::Ulimit, UndefinedVirtualPixelMethod, _ResampleFilter::Uwidth, VerticalTileEdgeVirtualPixelMethod, VerticalTileVirtualPixelMethod, _ResampleFilter::view, _ResampleFilter::virtual_pixel, _ResampleFilter::Vlimit, WhiteVirtualPixelMethod, and WLUT_WIDTH.

Referenced by CompositeImageChannel(), and DistortImage().

◆ ScaleResampleFilter()

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

Definition at line 1050 of file resample.c.

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

Referenced by CompositeImageChannel(), and SetResampleFilter().

◆ SetResampleFilter()

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

Definition at line 1255 of file resample.c.

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

Referenced by AcquireResampleFilter(), AcquireResampleFilterTLS(), and CompositeImageChannel().

◆ SetResampleFilterInterpolateMethod()

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

Definition at line 1418 of file resample.c.

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

Referenced by AcquireResampleFilter().

◆ SetResampleFilterVirtualPixelMethod()

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

Definition at line 1457 of file resample.c.

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

Referenced by AcquireResampleFilter(), and AcquireResampleFilterTLS().