layer.c File Reference

#include "MagickCore/studio.h"
#include "MagickCore/artifact.h"
#include "MagickCore/attribute.h"
#include "MagickCore/cache.h"
#include "MagickCore/channel.h"
#include "MagickCore/color.h"
#include "MagickCore/color-private.h"
#include "MagickCore/composite.h"
#include "MagickCore/effect.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/geometry.h"
#include "MagickCore/image.h"
#include "MagickCore/layer.h"
#include "MagickCore/list.h"
#include "MagickCore/memory_.h"
#include "MagickCore/monitor.h"
#include "MagickCore/monitor-private.h"
#include "MagickCore/option.h"
#include "MagickCore/pixel-accessor.h"
#include "MagickCore/property.h"
#include "MagickCore/profile.h"
#include "MagickCore/resource_.h"
#include "MagickCore/resize.h"
#include "MagickCore/statistic.h"
#include "MagickCore/string_.h"
#include "MagickCore/thread-private.h"
#include "MagickCore/transform.h"

Include dependency graph for layer.c:

Go to the source code of this file.

Macros
#define	DupDispose   ((DisposeType)9)
#define	DelDispose   ((DisposeType)8)
#define	DEBUG_OPT_FRAME   0
#define	MergeLayersTag   "Merge/Layers"

Functions
static void	ClearBounds (Image *image, RectangleInfo *bounds, ExceptionInfo *exception)
static MagickBooleanType	IsBoundsCleared (const Image *image1, const Image *image2, RectangleInfo *bounds, ExceptionInfo *exception)
MagickExport Image *	CoalesceImages (const Image *image, ExceptionInfo *exception)
MagickExport Image *	DisposeImages (const Image *images, ExceptionInfo *exception)
static MagickBooleanType	ComparePixels (const LayerMethod method, const PixelInfo *p, const PixelInfo *q)
static RectangleInfo	CompareImagesBounds (const Image *alpha_image, const Image *beta_image, const LayerMethod method, ExceptionInfo *exception)
MagickExport Image *	CompareImagesLayers (const Image *image, const LayerMethod method, ExceptionInfo *exception)
static Image *	OptimizeLayerFrames (const Image *image, const LayerMethod method, ExceptionInfo *exception)
MagickExport Image *	OptimizeImageLayers (const Image *image, ExceptionInfo *exception)
MagickExport Image *	OptimizePlusImageLayers (const Image *image, ExceptionInfo *exception)
MagickExport void	OptimizeImageTransparency (const Image *image, ExceptionInfo *exception)
MagickExport void	RemoveDuplicateLayers (Image **images, ExceptionInfo *exception)
MagickExport void	RemoveZeroDelayLayers (Image **images, ExceptionInfo *exception)
static void	CompositeCanvas (Image *destination, const CompositeOperator compose, Image *source, ssize_t x_offset, ssize_t y_offset, ExceptionInfo *exception)
MagickExport void	CompositeLayers (Image *destination, const CompositeOperator compose, Image *source, const ssize_t x_offset, const ssize_t y_offset, ExceptionInfo *exception)
MagickExport Image *	MergeImageLayers (Image *image, const LayerMethod method, ExceptionInfo *exception)

Macro Definition Documentation

DEBUG_OPT_FRAME

#define DEBUG_OPT_FRAME   0

Definition at line 940 of file layer.c.

DelDispose

#define DelDispose   ((DisposeType)8)

Definition at line 938 of file layer.c.

DupDispose

#define DupDispose   ((DisposeType)9)

Definition at line 934 of file layer.c.

MergeLayersTag

#define MergeLayersTag   "Merge/Layers"

Function Documentation

ClearBounds()

static void ClearBounds ( Image *  image, RectangleInfo *  bounds, ExceptionInfo *  exception  )

static

Definition at line 102 of file layer.c.

References _Image::alpha_trait, GetAuthenticPixels(), GetPixelChannels(), _RectangleInfo::height, magick_restrict, MagickFalse, OpaqueAlphaChannel, SetImageAlphaChannel(), SetPixelAlpha(), SyncAuthenticPixels(), TransparentAlpha, UndefinedPixelTrait, _RectangleInfo::width, _RectangleInfo::x, and _RectangleInfo::y.

Referenced by CoalesceImages(), DisposeImages(), OptimizeImageTransparency(), and OptimizeLayerFrames().

CoalesceImages()

MagickExport Image * CoalesceImages	(	const Image *	image,
		ExceptionInfo *	exception
	)

Definition at line 231 of file layer.c.

References _PixelInfo::alpha, _Image::alpha_trait, _PixelInfo::alpha_trait, _Image::background_color, BackgroundDispose, BlendPixelTrait, ClearBounds(), CloneImage(), CloneImageArtifacts(), CloneImageProfiles(), CloneImageProperties(), _Image::columns, CompositeImage(), CopyCompositeOp, DestroyImage(), DestroyImageList(), _Image::dispose, _Image::filename, GetFirstImageInList(), GetImageProperty(), GetMagickModule, GetNextImageInList(), GetPreviousImageInList(), _RectangleInfo::height, IsBoundsCleared(), IsEventLogging(), LocaleCompare(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, _Image::next, NoneDispose, OverCompositeOp, _Image::page, _Image::previous, PreviousDispose, _Image::rows, SetImageBackgroundColor(), _ExceptionInfo::signature, _Image::signature, TraceEvent, TransparentAlpha, UndefinedPixelTrait, _RectangleInfo::width, _RectangleInfo::x, and _RectangleInfo::y.

CompareImagesBounds()

static RectangleInfo CompareImagesBounds ( const Image *  alpha_image, const Image *  beta_image, const LayerMethod  method, ExceptionInfo *  exception  )

static

Definition at line 615 of file layer.c.

References _Image::columns, ComparePixels(), _Image::filename, GetMagickModule, GetPixelChannels(), GetPixelInfo(), GetPixelInfoPixel(), GetVirtualPixels(), _RectangleInfo::height, IsEventLogging(), LogMagickEvent(), MagickFalse, _Image::rows, TraceEvent, _RectangleInfo::width, _RectangleInfo::x, and _RectangleInfo::y.

Referenced by CompareImagesLayers(), OptimizeLayerFrames(), and RemoveDuplicateLayers().

CompareImagesLayers()

MagickExport Image * CompareImagesLayers	(	const Image *	image,
		const LayerMethod	method,
		ExceptionInfo *	exception
	)

Definition at line 769 of file layer.c.

References AcquireQuantumMemory(), _PixelInfo::alpha, _PixelInfo::alpha_trait, AppendImageToList(), _Image::background_color, BlendPixelTrait, CloneImage(), CompareAnyLayer, CompareClearLayer, CompareImagesBounds(), CompareOverlayLayer, CompositeImage(), CopyCompositeOp, CropImage(), DestroyImage(), DestroyImageList(), _Image::filename, GetFirstImageInList(), GetImageListLength(), GetMagickModule, GetNextImageInList(), _RectangleInfo::height, IsEventLogging(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, _Image::page, RelinquishMagickMemory(), ResourceLimitError, SetImageBackgroundColor(), _ExceptionInfo::signature, _Image::signature, ThrowImageException, TraceEvent, TransparentAlpha, _RectangleInfo::width, _RectangleInfo::x, and _RectangleInfo::y.

ComparePixels()

static MagickBooleanType ComparePixels ( const LayerMethod  method, const PixelInfo *  p, const PixelInfo *  q  )

static

Definition at line 546 of file layer.c.

References _PixelInfo::alpha, _PixelInfo::alpha_trait, CompareAnyLayer, CompareClearLayer, CompareOverlayLayer, IsFuzzyEquivalencePixelInfo(), MagickFalse, MagickTrue, OpaqueAlpha, QuantumRange, and UndefinedPixelTrait.

Referenced by CompareImagesBounds().

CompositeCanvas()

static void CompositeCanvas ( Image *  destination, const CompositeOperator  compose, Image *  source, ssize_t  x_offset, ssize_t  y_offset, ExceptionInfo *  exception  )

inlinestatic

Definition at line 1795 of file layer.c.

References CompositeImage(), GetImageArtifact(), IsStringTrue(), MagickFalse, MagickTrue, _Image::page, _RectangleInfo::x, and _RectangleInfo::y.

Referenced by CompositeLayers().

CompositeLayers()

MagickExport void CompositeLayers	(	Image *	destination,
		const CompositeOperator	compose,
		Image *	source,
		const ssize_t	x_offset,
		const ssize_t	y_offset,
		ExceptionInfo *	exception
	)

Definition at line 1810 of file layer.c.

References _PixelInfo::alpha_trait, AppendImageToList(), _Image::background_color, BlendPixelTrait, CloneImage(), CompositeCanvas(), _Image::delay, DestroyImage(), _Image::filename, GetLastImageInList(), GetMagickModule, GetNextImageInList(), IsEventLogging(), _Image::iterations, LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, _Image::next, _ExceptionInfo::signature, _Image::signature, and TraceEvent.

DisposeImages()

MagickExport Image * DisposeImages	(	const Image *	images,
		ExceptionInfo *	exception
	)

Definition at line 398 of file layer.c.

References _PixelInfo::alpha, _Image::alpha_trait, _PixelInfo::alpha_trait, AppendImageToList(), _Image::background_color, BackgroundDispose, BlendPixelTrait, ClearBounds(), CloneImage(), CloneImageArtifacts(), CloneImageProfiles(), CloneImageProperties(), _Image::columns, CompositeImage(), CopyCompositeOp, DestroyImage(), DestroyImageList(), _Image::dispose, _Image::filename, GetFirstImageInList(), GetMagickModule, GetNextImageInList(), _RectangleInfo::height, IsEventLogging(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, NewImageList(), NoneDispose, OverCompositeOp, _Image::page, PreviousDispose, _Image::rows, SetImageBackgroundColor(), _ExceptionInfo::signature, _Image::signature, TraceEvent, TransparentAlpha, UndefinedPixelTrait, _RectangleInfo::width, _RectangleInfo::x, and _RectangleInfo::y.

IsBoundsCleared()

static MagickBooleanType IsBoundsCleared ( const Image *  image1, const Image *  image2, RectangleInfo *  bounds, ExceptionInfo *  exception  )

static

Definition at line 167 of file layer.c.

References GetPixelAlpha(), GetPixelChannels(), GetVirtualPixels(), _RectangleInfo::height, MagickFalse, MagickTrue, QuantumRange, _RectangleInfo::width, _RectangleInfo::x, and _RectangleInfo::y.

Referenced by CoalesceImages(), and OptimizeLayerFrames().

MergeImageLayers()

MagickExport Image * MergeImageLayers	(	Image *	image,
		const LayerMethod	method,
		ExceptionInfo *	exception
	)

Definition at line 1940 of file layer.c.

References _PixelInfo::alpha_trait, _Image::background_color, BlendPixelTrait, CloneImage(), _Image::columns, _Image::compose, CompositeImage(), _Image::dispose, _Image::filename, FlattenLayer, GetImageListLength(), GetMagickModule, GetNextImageInList(), _RectangleInfo::height, IsEventLogging(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, MergeLayer, MergeLayersTag, MosaicLayer, _Image::page, _Image::rows, SetImageBackgroundColor(), SetImageProgress(), _ExceptionInfo::signature, _Image::signature, TraceEvent, TrimBoundsLayer, UndefinedDispose, _RectangleInfo::width, _RectangleInfo::x, and _RectangleInfo::y.

Referenced by VignetteImage().

OptimizeImageLayers()

MagickExport Image * OptimizeImageLayers	(	const Image *	image,
		ExceptionInfo *	exception
	)

Definition at line 1422 of file layer.c.

References OptimizeImageLayer, and OptimizeLayerFrames().

OptimizeImageTransparency()

MagickExport void OptimizeImageTransparency	(	const Image *	image,
		ExceptionInfo *	exception
	)

Definition at line 1492 of file layer.c.

References _PixelInfo::alpha, _Image::alpha_trait, _PixelInfo::alpha_trait, _Image::background_color, BackgroundDispose, BlendPixelTrait, ChangeMaskCompositeOp, ClearBounds(), CloneImage(), _Image::columns, CompositeImage(), CopyCompositeOp, DestroyImage(), _Image::dispose, _Image::filename, GetFirstImageInList(), GetMagickModule, GetNextImageInList(), _RectangleInfo::height, IsEventLogging(), LogMagickEvent(), MagickCoreSignature, MagickFalse, MagickTrue, NoneDispose, OverCompositeOp, _Image::page, PreviousDispose, _Image::rows, SetImageBackgroundColor(), _ExceptionInfo::signature, _Image::signature, TraceEvent, TransparentAlpha, UndefinedPixelTrait, _RectangleInfo::width, _RectangleInfo::x, and _RectangleInfo::y.

OptimizeLayerFrames()

static Image * OptimizeLayerFrames ( const Image *  image, const LayerMethod  method, ExceptionInfo *  exception  )

static

Definition at line 942 of file layer.c.

References AcquireExceptionInfo(), AcquireQuantumMemory(), _PixelInfo::alpha, _PixelInfo::alpha_trait, AppendImageToList(), _Image::background_color, BackgroundDispose, BlendPixelTrait, ClearBounds(), CloneImage(), _Image::columns, CommandOptionToMnemonic(), CompareAnyLayer, CompareClearLayer, CompareImagesBounds(), CompareOverlayLayer, CropImage(), _Image::delay, DelDispose, DestroyExceptionInfo(), DestroyImage(), DestroyImageList(), _Image::dispose, DupDispose, _Image::filename, FormatLocaleFile(), GetFirstImageInList(), GetImageListLength(), GetMagickModule, GetNextImageInList(), _RectangleInfo::height, IsBoundsCleared(), IsEventLogging(), LogMagickEvent(), MagickCoreSignature, MagickDisposeOptions, MagickFalse, MagickTrue, NewImageList(), NoneDispose, OptimizeImageLayer, OptimizeLayer, OptimizePlusLayer, OptionError, _Image::page, PerceptibleReciprocal(), _Image::previous, PreviousDispose, ReferenceImage(), RelinquishMagickMemory(), ResourceLimitError, _Image::rows, SetImageBackgroundColor(), _ExceptionInfo::signature, _Image::signature, ThrowImageException, _Image::ticks_per_second, TraceEvent, TransparentAlpha, _RectangleInfo::width, _RectangleInfo::x, and _RectangleInfo::y.

Referenced by OptimizeImageLayers(), and OptimizePlusImageLayers().

OptimizePlusImageLayers()

MagickExport Image * OptimizePlusImageLayers	(	const Image *	image,
		ExceptionInfo *	exception
	)

Definition at line 1455 of file layer.c.

References OptimizeLayerFrames(), and OptimizePlusLayer.

RemoveDuplicateLayers()

MagickExport void RemoveDuplicateLayers	(	Image **	images,
		ExceptionInfo *	exception
	)

Definition at line 1620 of file layer.c.

References _Image::columns, CompareAnyLayer, CompareImagesBounds(), _Image::delay, DeleteImageFromList(), GetFirstImageInList(), GetMagickModule, GetNextImageInList(), IsEventLogging(), _Image::iterations, LogMagickEvent(), MagickCoreSignature, MagickFalse, _Image::page, PerceptibleReciprocal(), _Image::rows, _ExceptionInfo::signature, _Image::ticks_per_second, TraceEvent, _RectangleInfo::x, and _RectangleInfo::y.

RemoveZeroDelayLayers()

MagickExport void RemoveZeroDelayLayers	(	Image **	images,
		ExceptionInfo *	exception
	)

Definition at line 1705 of file layer.c.

References _Image::delay, DeleteImageFromList(), _Image::filename, GetFirstImageInList(), GetMagickModule, GetNextImageInList(), IsEventLogging(), LogMagickEvent(), MagickCoreSignature, MagickFalse, OptionWarning, _ExceptionInfo::signature, ThrowMagickException(), and TraceEvent.