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"

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 **	DestroyFxThreadSet (FxInfo **fx_info)
static FxInfo **	AcquireFxThreadSet (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

#define FxImageTag   "Fx/Image"

Referenced by FxImageChannel().

#define FxMaxFunctionDepth   200

Referenced by FxGCD().

#define FxMaxParenthesisDepth   58

Referenced by FxEvaluateSubexpression().

#define FxMaxSubexpressionDepth   200

Referenced by FxEvaluateSubexpression().

#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'; \
}

Referenced by FxEvaluateSubexpression().

#define FxReturn

(

value

)

Value:

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

Referenced by FxEvaluateSubexpression().

Enumeration Type Documentation

enum FxOperator

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

Function Documentation

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

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.

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

static

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

Referenced by FxImageChannel().

MagickExport FxInfo* DestroyFxInfo

(

FxInfo *

fx_info

)

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 DestroyFxThreadSet(), GetImageProperty(), and InterpretImageProperties().

static FxInfo** DestroyFxThreadSet ( FxInfo **  fx_info )

static

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

Referenced by AcquireFxThreadSet(), and FxImageChannel().

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

static

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

Referenced by FxGetSymbol().

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

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

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

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

References FxEvaluateChannelExpression(), and GrayChannel.

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

References AcquireString(), AlphaChannel, BitwiseAndAssignmentOperator, BitwiseOrAssignmentOperator, BlackChannel, BlueChannel, ClearMagickException(), CMYKColorspace, _Image::colorspace, CopyMagickString(), CyanChannel, DecrementAssignmentOperator, DivideAssignmentOperator, EqualOperator, ErrorException, ExponentialNotation, _FxInfo::file, _Image::filename, FormatLocaleFile(), 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(), and FxGetSymbol().

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

inlinestatic

References FxMaxFunctionDepth.

Referenced by FxEvaluateSubexpression().

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

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, _RectangleInfo::x, _PointInfo::x, _Image::x_resolution, _GeometryInfo::xi, XiValue, _RectangleInfo::y, _PointInfo::y, _Image::y_resolution, and YellowChannel.

Referenced by FxEvaluateSubexpression().

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

References FxImageChannel(), and GrayChannel.

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

References AcquireAuthenticCacheView(), AcquireFxThreadSet(), BlueChannel, ClampToQuantum(), CloneImage(), CMYKColorspace, _Image::colorspace, _Image::columns, _Image::debug, DestroyCacheView(), DestroyFxThreadSet(), DestroyImage(), DirectClass, _Image::exception, _Image::filename, FxEvaluateChannelExpression(), FxImageTag, GetCacheViewAuthenticIndexQueue(), GetCacheViewAuthenticPixels(), GetMagickModule, GetOpenMPThreadId(), GreenChannel, IndexChannel, InheritException(), 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().

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

static

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().

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

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

Referenced by AcquireFxThreadSet().

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

inlinestatic

References GetMagickModule, OptionError, and ThrowMagickException().

Referenced by FxOperatorPrecedence().

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

inlinestatic

References GetValueFromSplayTree(), and _FxInfo::symbols.

Referenced by FxChannelStatistics(), and FxGetSymbol().

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

inlinestatic

References LocaleNCompare(), MagickFalse, and MagickTrue.

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

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

inlinestatic

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

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