fx.c File Reference

#include "magick/studio.h"
#include "magick/accelerate-private.h"
#include "magick/annotate.h"
#include "magick/artifact.h"
#include "magick/attribute.h"
#include "magick/cache.h"
#include "magick/cache-view.h"
#include "magick/channel.h"
#include "magick/color.h"
#include "magick/color-private.h"
#include "magick/colorspace.h"
#include "magick/colorspace-private.h"
#include "magick/composite.h"
#include "magick/decorate.h"
#include "magick/distort.h"
#include "magick/draw.h"
#include "magick/effect.h"
#include "magick/enhance.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/fx.h"
#include "magick/fx-private.h"
#include "magick/gem.h"
#include "magick/geometry.h"
#include "magick/layer.h"
#include "magick/list.h"
#include "magick/log.h"
#include "magick/image.h"
#include "magick/image-private.h"
#include "magick/magick.h"
#include "magick/memory_.h"
#include "magick/memory-private.h"
#include "magick/monitor.h"
#include "magick/monitor-private.h"
#include "magick/opencl-private.h"
#include "magick/option.h"
#include "magick/pixel-accessor.h"
#include "magick/pixel-private.h"
#include "magick/property.h"
#include "magick/quantum.h"
#include "magick/quantum-private.h"
#include "magick/random_.h"
#include "magick/random-private.h"
#include "magick/resample.h"
#include "magick/resample-private.h"
#include "magick/resize.h"
#include "magick/resource_.h"
#include "magick/splay-tree.h"
#include "magick/statistic.h"
#include "magick/string_.h"
#include "magick/string-private.h"
#include "magick/thread-private.h"
#include "magick/threshold.h"
#include "magick/token.h"
#include "magick/transform.h"
#include "magick/utility.h"

Include dependency graph for fx.c:

Go to the source code of this file.

Data Structures
struct	_FxInfo

Macros
#define	FxMaxFunctionDepth   200
#define	FxMaxParenthesisDepth   58
#define	FxMaxSubexpressionDepth   200
#define	FxReturn(value)
#define	FxParseConditional(subexpression, sentinal, p, q)
#define	FxImageTag   "Fx/Image"

Enumerations
enum	FxOperator {   BitwiseAndAssignmentOperator = 0xd9U , BitwiseOrAssignmentOperator , LeftShiftAssignmentOperator , RightShiftAssignmentOperator ,   PowerAssignmentOperator , ModuloAssignmentOperator , PlusAssignmentOperator , SubtractAssignmentOperator ,   MultiplyAssignmentOperator , DivideAssignmentOperator , IncrementAssignmentOperator , DecrementAssignmentOperator ,   LeftShiftOperator , RightShiftOperator , LessThanEqualOperator , GreaterThanEqualOperator ,   EqualOperator , NotEqualOperator , LogicalAndOperator , LogicalOrOperator ,   ExponentialNotation }

Functions
MagickExport FxInfo *	AcquireFxInfo (const Image *images, const char *expression)
MagickExport FxInfo *	DestroyFxInfo (FxInfo *fx_info)
static const double *	GetFxSymbolValue (FxInfo *fx_info, const char *symbol)
static MagickBooleanType	SetFxSymbolValue (FxInfo *magick_restrict fx_info, const char *magick_restrict symbol, const double value)
static double	FxChannelStatistics (FxInfo *fx_info, const Image *image, ChannelType channel, const char *symbol, ExceptionInfo *exception)
static double	FxEvaluateSubexpression (FxInfo *, const ChannelType, const ssize_t, const ssize_t, const char *, const size_t, double *, ExceptionInfo *)
static MagickBooleanType	IsFxFunction (const char *expression, const char *name, const size_t length)
static double	FxGCD (const double alpha, const double beta, const size_t depth)
static const char *	FxSubexpression (const char *expression, ExceptionInfo *exception)
static double	FxGetSymbol (FxInfo *fx_info, const ChannelType channel, const ssize_t x, const ssize_t y, const char *expression, const size_t depth, ExceptionInfo *exception)
static const char *	FxOperatorPrecedence (const char *expression, ExceptionInfo *exception)
MagickExport MagickBooleanType	FxEvaluateExpression (FxInfo *fx_info, double *alpha, ExceptionInfo *exception)
MagickExport MagickBooleanType	FxPreprocessExpression (FxInfo *fx_info, double *alpha, ExceptionInfo *exception)
MagickExport MagickBooleanType	FxEvaluateChannelExpression (FxInfo *fx_info, const ChannelType channel, const ssize_t x, const ssize_t y, double *alpha, ExceptionInfo *exception)
static FxInfo **	DestroyFxTLS (FxInfo **fx_info)
static FxInfo **	AcquireFxTLS (const Image *image, const char *expression, ExceptionInfo *exception)
MagickExport Image *	FxImage (const Image *image, const char *expression, ExceptionInfo *exception)
MagickExport Image *	FxImageChannel (const Image *image, const ChannelType channel, const char *expression, ExceptionInfo *exception)

Macro Definition Documentation

FxImageTag

#define FxImageTag   "Fx/Image"

FxMaxFunctionDepth

#define FxMaxFunctionDepth   200

FxMaxParenthesisDepth

#define FxMaxParenthesisDepth   58

FxMaxSubexpressionDepth

#define FxMaxSubexpressionDepth   200

FxParseConditional

#define FxParseConditional	(		subexpression,
			sentinal,
			p,
			q
	)

Value:

{ \
  p=subexpression; \
  for (q=(char *) p; (*q != (sentinal)) && (*q != '\0'); q++) \
    if (*q == '(') \
      { \
        for (q++; (*q != ')') && (*q != '\0'); q++); \
        if (*q == '\0') \
          break; \
      } \
  if (*q == '\0') \
    { \
      (void) ThrowMagickException(exception,GetMagickModule(), \
        OptionError,"UnableToParseExpression","`%s'",subexpression); \
      FxReturn(0.0); \
    } \
  if (strlen(q) == 1) \
    *(q+1)='\0'; \
  *q='\0'; \
}

FxReturn

#define FxReturn

(

value

)

Value:

{ \
  subexpression=DestroyString(subexpression); \
  return(value); \
}

Enumeration Type Documentation

FxOperator

enum FxOperator

Enumerator
BitwiseAndAssignmentOperator
BitwiseOrAssignmentOperator
LeftShiftAssignmentOperator
RightShiftAssignmentOperator
PowerAssignmentOperator
ModuloAssignmentOperator
PlusAssignmentOperator
SubtractAssignmentOperator
MultiplyAssignmentOperator
DivideAssignmentOperator
IncrementAssignmentOperator
DecrementAssignmentOperator
LeftShiftOperator
RightShiftOperator
LessThanEqualOperator
GreaterThanEqualOperator
EqualOperator
NotEqualOperator
LogicalAndOperator
LogicalOrOperator
ExponentialNotation

Definition at line 103 of file fx.c.

Function Documentation

AcquireFxInfo()

MagickExport FxInfo * AcquireFxInfo	(	const Image *	images,
		const char *	expression
	)

Definition at line 177 of file fx.c.

References AcquireCriticalMemory(), AcquireExceptionInfo(), AcquireQuantumMemory(), AcquireRandomInfo(), AcquireVirtualCacheView(), BitwiseAndAssignmentOperator, BitwiseOrAssignmentOperator, _FxInfo::colors, CompareSplayTreeString(), ConstantString(), DecrementAssignmentOperator, DivideAssignmentOperator, EqualOperator, _FxInfo::exception, ExponentialNotation, _FxInfo::expression, _FxInfo::file, GetFirstImageInList(), GetImageListLength(), GreaterThanEqualOperator, _FxInfo::images, IncrementAssignmentOperator, LeftShiftAssignmentOperator, LeftShiftOperator, LessThanEqualOperator, LogicalAndOperator, LogicalOrOperator, ModuloAssignmentOperator, MultiplyAssignmentOperator, NewSplayTree(), _Image::next, NotEqualOperator, PlusAssignmentOperator, PowerAssignmentOperator, _FxInfo::random_info, RelinquishMagickMemory(), ResourceLimitFatalError, RightShiftAssignmentOperator, RightShiftOperator, SubstituteString(), SubtractAssignmentOperator, _FxInfo::symbols, ThrowFatalException, and _FxInfo::view.

Referenced by AcquireFxTLS().

AcquireFxTLS()

static FxInfo ** AcquireFxTLS ( const Image *  image, const char *  expression, ExceptionInfo *  exception  )

static

Definition at line 2737 of file fx.c.

References AcquireFxInfo(), AcquireQuantumMemory(), ConstantString(), DestroyFxTLS(), DestroyString(), _Image::filename, FileToString(), FxPreprocessExpression(), GetMagickModule, GetMagickResourceLimit(), MagickFalse, ResourceLimitError, ThreadResource, and ThrowMagickException().

Referenced by FxImageChannel().

DestroyFxInfo()

MagickExport FxInfo * DestroyFxInfo

(

FxInfo *

fx_info

)

Definition at line 292 of file fx.c.

References _FxInfo::colors, DestroyCacheView(), DestroyExceptionInfo(), DestroyRandomInfo(), DestroySplayTree(), DestroyString(), _FxInfo::exception, _FxInfo::expression, GetImageListLength(), _FxInfo::images, _FxInfo::random_info, RelinquishMagickMemory(), _FxInfo::symbols, and _FxInfo::view.

Referenced by DestroyFxTLS(), GetImageProperty(), and InterpretImageProperties().

DestroyFxTLS()

static FxInfo ** DestroyFxTLS ( FxInfo **  fx_info )

static

Definition at line 2724 of file fx.c.

References DestroyFxInfo(), GetMagickResourceLimit(), RelinquishMagickMemory(), and ThreadResource.

Referenced by AcquireFxTLS(), and FxImageChannel().

FxChannelStatistics()

static double FxChannelStatistics ( FxInfo *  fx_info, const Image *  image, ChannelType  channel, const char *  symbol, ExceptionInfo *  exception  )

static

Definition at line 375 of file fx.c.

References CopyMagickString(), FormatLocaleString(), GetFxSymbolValue(), GetImageChannelDepth(), GetImageChannelKurtosis(), GetImageChannelMean(), GetImageChannelRange(), LocaleNCompare(), MagickChannelOptions, MagickFalse, MagickTrue, MaxTextExtent, ParseCommandOption(), QuantumScale, and SetFxSymbolValue().

Referenced by FxGetSymbol().

FxEvaluateChannelExpression()

MagickExport MagickBooleanType FxEvaluateChannelExpression	(	FxInfo *	fx_info,
		const ChannelType	channel,
		const ssize_t	x,
		const ssize_t	y,
		double *	alpha,
		ExceptionInfo *	exception
	)

Definition at line 2679 of file fx.c.

References _FxInfo::expression, FxEvaluateSubexpression(), MagickFalse, MagickTrue, OptionError, and _ExceptionInfo::severity.

Referenced by FxEvaluateExpression(), FxImageChannel(), FxPreprocessExpression(), GetImageProperty(), and InterpretImageProperties().

FxEvaluateExpression()

MagickExport MagickBooleanType FxEvaluateExpression	(	FxInfo *	fx_info,
		double *	alpha,
		ExceptionInfo *	exception
	)

Definition at line 2653 of file fx.c.

References FxEvaluateChannelExpression(), and GrayChannel.

FxEvaluateSubexpression()

static double FxEvaluateSubexpression ( FxInfo *  fx_info, const ChannelType  channel, const ssize_t  x, const ssize_t  y, const char *  expression, const size_t  depth, double *  beta, ExceptionInfo *  exception  )

static

Definition at line 1418 of file fx.c.

References AcquireString(), AlphaChannel, BitwiseAndAssignmentOperator, BitwiseOrAssignmentOperator, BlackChannel, BlueChannel, ClearMagickException(), CMYKColorspace, _Image::colorspace, CopyMagickString(), CyanChannel, DecrementAssignmentOperator, DivideAssignmentOperator, EqualOperator, ErrorException, ExponentialNotation, _FxInfo::file, _Image::filename, FormatLocaleFile(), FxEvaluateSubexpression(), FxGCD(), FxGetSymbol(), FxMaxParenthesisDepth, FxMaxSubexpressionDepth, FxOperatorPrecedence(), FxParseConditional, FxReturn, GetMagickModule, GetMagickPrecision(), GetPseudoRandomValue(), GRAYColorspace, GreaterThanEqualOperator, GreenChannel, _FxInfo::images, IncrementAssignmentOperator, InterpretSiPrefixValue(), IsFxFunction(), IsNaN, LeftShiftAssignmentOperator, LeftShiftOperator, LessThanEqualOperator, LocaleCompare(), LocaleNCompare(), LogicalAndOperator, LogicalOrOperator, MagentaChannel, MagickEpsilon, MagickFalse, MagickPathExtent, MagickPHI, MagickPI, MaxTextExtent, ModuloAssignmentOperator, MultiplyAssignmentOperator, NotEqualOperator, OptionError, PerceptibleReciprocal(), PlusAssignmentOperator, PowerAssignmentOperator, QuantumRange, QuantumScale, _FxInfo::random_info, RedChannel, RightShiftAssignmentOperator, RightShiftOperator, SetFxSymbolValue(), _ExceptionInfo::severity, SubtractAssignmentOperator, ThrowMagickException(), and YellowChannel.

Referenced by FxEvaluateChannelExpression(), FxEvaluateSubexpression(), and FxGetSymbol().

FxGCD()

static double FxGCD ( const double  alpha, const double  beta, const size_t  depth  )

inlinestatic

Definition at line 503 of file fx.c.

References FxGCD(), and FxMaxFunctionDepth.

Referenced by FxEvaluateSubexpression(), and FxGCD().

FxGetSymbol()

static double FxGetSymbol ( FxInfo *  fx_info, const ChannelType  channel, const ssize_t  x, const ssize_t  y, const char *  expression, const size_t  depth, ExceptionInfo *  exception  )

static

Definition at line 542 of file fx.c.

References AcquireString(), AddValueToSplayTree(), BlackChannel, _MagickPixelPacket::blue, BlueChannel, _GeometryInfo::chi, ChiValue, ClampToQuantum(), CloneMagickPixelPacket(), CMYKColorspace, _FxInfo::colors, _Image::colorspace, _Image::columns, ConstantString(), ConvertRGBToHSL(), CopyMagickString(), CyanChannel, DefaultChannels, DestroyString(), _FxInfo::exception, _Image::extent, _Image::filename, FxChannelStatistics(), FxEvaluateSubexpression(), GetBlobSize(), GetFxSymbolValue(), GetImageArtifact(), GetImageChannelDepth(), GetImageFromList(), GetImageIndexInList(), GetImageListLength(), GetMagickModule, GetMagickPixelIntensity(), GetMagickPixelPacket(), GetPixelAlpha, GetValueFromSplayTree(), _MagickPixelPacket::green, GreenChannel, _RectangleInfo::height, ImageError, _FxInfo::images, _MagickPixelPacket::index, IndexChannel, _Image::interpolate, InterpolateMagickPixelPacket(), IsFxFunction(), LocaleCompare(), LocaleNCompare(), MagentaChannel, MagickFalse, _MagickPixelPacket::matte, MaxTextExtent, _MagickPixelPacket::opacity, OpacityChannel, OptionError, _Image::page, ParseGeometry(), PerceptibleReciprocal(), _GeometryInfo::psi, PsiValue, _Image::quality, QuantumScale, QueryMagickColor(), _MagickPixelPacket::red, RedChannel, _GeometryInfo::rho, RhoValue, _Image::rows, SetFxSymbolValue(), _GeometryInfo::sigma, SigmaValue, StringToDouble(), StripString(), ThrowMagickException(), _FxInfo::view, _RectangleInfo::width, _PointInfo::x, _RectangleInfo::x, _Image::x_resolution, _GeometryInfo::xi, XiValue, _PointInfo::y, _RectangleInfo::y, _Image::y_resolution, and YellowChannel.

Referenced by FxEvaluateSubexpression().

FxImage()

MagickExport Image * FxImage	(	const Image *	image,
		const char *	expression,
		ExceptionInfo *	exception
	)

Definition at line 2786 of file fx.c.

References FxImageChannel(), and GrayChannel.

FxImageChannel()

MagickExport Image * FxImageChannel	(	const Image *	image,
		const ChannelType	channel,
		const char *	expression,
		ExceptionInfo *	exception
	)

Definition at line 2796 of file fx.c.

References AcquireAuthenticCacheView(), AcquireFxTLS(), BlueChannel, ClampToQuantum(), CloneImage(), CMYKColorspace, _Image::colorspace, _Image::columns, DestroyCacheView(), DestroyFxTLS(), DestroyImage(), DirectClass, _Image::exception, _Image::filename, FxEvaluateChannelExpression(), FxImageTag, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetMagickModule, GetOpenMPThreadId(), GreenChannel, IndexChannel, InheritException(), IsEventLogging(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickTrue, _Image::matte, OpacityChannel, _Image::progress_monitor, QuantumRange, RedChannel, _Image::rows, SetImageProgress(), SetImageStorageClass(), SetPixelBlue, SetPixelGreen, SetPixelIndex, SetPixelOpacity, SetPixelRed, _Image::signature, SyncCacheViewAuthenticPixels(), and TraceEvent.

Referenced by FxImage().

FxOperatorPrecedence()

static const char * FxOperatorPrecedence ( const char *  expression, ExceptionInfo *  exception  )

static

Definition at line 1144 of file fx.c.

References BitwiseAndAssignmentOperator, BitwiseOrAssignmentOperator, DecrementAssignmentOperator, DivideAssignmentOperator, EqualOperator, ExponentialNotation, FxSubexpression(), GreaterThanEqualOperator, IncrementAssignmentOperator, IsFxFunction(), LeftShiftAssignmentOperator, LeftShiftOperator, LessThanEqualOperator, LocaleNCompare(), LogicalAndOperator, LogicalOrOperator, MagickFalse, ModuloAssignmentOperator, MultiplyAssignmentOperator, NotEqualOperator, PlusAssignmentOperator, PowerAssignmentOperator, RightShiftAssignmentOperator, RightShiftOperator, and SubtractAssignmentOperator.

Referenced by FxEvaluateSubexpression().

FxPreprocessExpression()

MagickExport MagickBooleanType FxPreprocessExpression	(	FxInfo *	fx_info,
		double *	alpha,
		ExceptionInfo *	exception
	)

Definition at line 2663 of file fx.c.

References _FxInfo::file, FxEvaluateChannelExpression(), and GrayChannel.

Referenced by AcquireFxTLS().

FxSubexpression()

static const char * FxSubexpression ( const char *  expression, ExceptionInfo *  exception  )

inlinestatic

Definition at line 515 of file fx.c.

References GetMagickModule, OptionError, and ThrowMagickException().

Referenced by FxOperatorPrecedence().

GetFxSymbolValue()

static const double * GetFxSymbolValue ( FxInfo *  fx_info, const char *  symbol  )

inlinestatic

Definition at line 345 of file fx.c.

References GetValueFromSplayTree(), and _FxInfo::symbols.

Referenced by FxChannelStatistics(), and FxGetSymbol().

IsFxFunction()

static MagickBooleanType IsFxFunction ( const char *  expression, const char *  name, const size_t  length  )

inlinestatic

Definition at line 484 of file fx.c.

References LocaleNCompare(), MagickFalse, and MagickTrue.

Referenced by FxEvaluateSubexpression(), FxGetSymbol(), and FxOperatorPrecedence().

SetFxSymbolValue()

static MagickBooleanType SetFxSymbolValue ( FxInfo *magick_restrict  fx_info, const char *magick_restrict  symbol, const double  value  )

inlinestatic

Definition at line 350 of file fx.c.

References AcquireMagickMemory(), AddValueToSplayTree(), ConstantString(), GetMagickModule, GetValueFromSplayTree(), MagickFalse, MagickTrue, ResourceLimitError, and ThrowMagickException().

Referenced by FxChannelStatistics(), FxEvaluateSubexpression(), and FxGetSymbol().