/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef MOZILLA_GFX_DRAWTARGETRECORDING_H_
#define MOZILLA_GFX_DRAWTARGETRECORDING_H_
#include "2D.h"
#include "DrawEventRecorder.h"
namespace mozilla {
namespace gfx {
class DrawTargetRecording : public DrawTarget
{
public:
MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DrawTargetRecording)
DrawTargetRecording(DrawEventRecorder *aRecorder, DrawTarget *aDT, bool aHasData = false);
~DrawTargetRecording();
virtual DrawTargetType GetType() const MOZ_OVERRIDE { return mFinalDT->GetType(); }
virtual BackendType GetBackendType() const { return mFinalDT->GetBackendType(); }
virtual TemporaryRef<SourceSurface> Snapshot();
virtual IntSize GetSize() { return mFinalDT->GetSize(); }
/* Ensure that the DrawTarget backend has flushed all drawing operations to
* this draw target. This must be called before using the backing surface of
* this draw target outside of GFX 2D code.
*/
virtual void Flush() { mFinalDT->Flush(); }
/*
* Draw a surface to the draw target. Possibly doing partial drawing or
* applying scaling. No sampling happens outside the source.
*
* aSurface Source surface to draw
* aDest Destination rectangle that this drawing operation should draw to
* aSource Source rectangle in aSurface coordinates, this area of aSurface
* will be stretched to the size of aDest.
* aOptions General draw options that are applied to the operation
* aSurfOptions DrawSurface options that are applied
*/
virtual void DrawSurface(SourceSurface *aSurface,
const Rect &aDest,
const Rect &aSource,
const DrawSurfaceOptions &aSurfOptions = DrawSurfaceOptions(),
const DrawOptions &aOptions = DrawOptions());
virtual void DrawFilter(FilterNode *aNode,
const Rect &aSourceRect,
const Point &aDestPoint,
const DrawOptions &aOptions = DrawOptions());
/*
* Blend a surface to the draw target with a shadow. The shadow is drawn as a
* gaussian blur using a specified sigma. The shadow is clipped to the size
* of the input surface, so the input surface should contain a transparent
* border the size of the approximate coverage of the blur (3 * aSigma).
* NOTE: This function works in device space!
*
* aSurface Source surface to draw.
* aDest Destination point that this drawing operation should draw to.
* aColor Color of the drawn shadow
* aOffset Offset of the shadow
* aSigma Sigma used for the guassian filter kernel
* aOperator Composition operator used
*/
virtual void DrawSurfaceWithShadow(SourceSurface *aSurface,
const Point &aDest,
const Color &aColor,
const Point &aOffset,
Float aSigma,
CompositionOp aOperator);
/*
* Clear a rectangle on the draw target to transparent black. This will
* respect the clipping region and transform.
*
* aRect Rectangle to clear
*/
virtual void ClearRect(const Rect &aRect);
/*
* This is essentially a 'memcpy' between two surfaces. It moves a pixel
* aligned area from the source surface unscaled directly onto the
* drawtarget. This ignores both transform and clip.
*
* aSurface Surface to copy from
* aSourceRect Source rectangle to be copied
* aDest Destination point to copy the surface to
*/
virtual void CopySurface(SourceSurface *aSurface,
const IntRect &aSourceRect,
const IntPoint &aDestination);
/*
* Fill a rectangle on the DrawTarget with a certain source pattern.
*
* aRect Rectangle that forms the mask of this filling operation
* aPattern Pattern that forms the source of this filling operation
* aOptions Options that are applied to this operation
*/
virtual void FillRect(const Rect &aRect,
const Pattern &aPattern,
const DrawOptions &aOptions = DrawOptions());
/*
* Stroke a rectangle on the DrawTarget with a certain source pattern.
*
* aRect Rectangle that forms the mask of this stroking operation
* aPattern Pattern that forms the source of this stroking operation
* aOptions Options that are applied to this operation
*/
virtual void StrokeRect(const Rect &aRect,
const Pattern &aPattern,
const StrokeOptions &aStrokeOptions = StrokeOptions(),
const DrawOptions &aOptions = DrawOptions());
/*
* Stroke a line on the DrawTarget with a certain source pattern.
*
* aStart Starting point of the line
* aEnd End point of the line
* aPattern Pattern that forms the source of this stroking operation
* aOptions Options that are applied to this operation
*/
virtual void StrokeLine(const Point &aStart,
const Point &aEnd,
const Pattern &aPattern,
const StrokeOptions &aStrokeOptions = StrokeOptions(),
const DrawOptions &aOptions = DrawOptions());
/*
* Stroke a path on the draw target with a certain source pattern.
*
* aPath Path that is to be stroked
* aPattern Pattern that should be used for the stroke
* aStrokeOptions Stroke options used for this operation
* aOptions Draw options used for this operation
*/
virtual void Stroke(const Path *aPath,
const Pattern &aPattern,
const StrokeOptions &aStrokeOptions = StrokeOptions(),
const DrawOptions &aOptions = DrawOptions());
/*
* Fill a path on the draw target with a certain source pattern.
*
* aPath Path that is to be filled
* aPattern Pattern that should be used for the fill
* aOptions Draw options used for this operation
*/
virtual void Fill(const Path *aPath,
const Pattern &aPattern,
const DrawOptions &aOptions = DrawOptions());
/*
* Fill a series of clyphs on the draw target with a certain source pattern.
*/
virtual void FillGlyphs(ScaledFont *aFont,
const GlyphBuffer &aBuffer,
const Pattern &aPattern,
const DrawOptions &aOptions = DrawOptions(),
const GlyphRenderingOptions *aRenderingOptions = nullptr);
/*
* This takes a source pattern and a mask, and composites the source pattern
* onto the destination surface using the alpha channel of the mask pattern
* as a mask for the operation.
*
* aSource Source pattern
* aMask Mask pattern
* aOptions Drawing options
*/
virtual void Mask(const Pattern &aSource,
const Pattern &aMask,
const DrawOptions &aOptions = DrawOptions());
virtual void MaskSurface(const Pattern &aSource,
SourceSurface *aMask,
Point aOffset,
const DrawOptions &aOptions = DrawOptions());
/*
* Push a clip to the DrawTarget.
*
* aPath The path to clip to
*/
virtual void PushClip(const Path *aPath);
/*
* Push an axis-aligned rectangular clip to the DrawTarget. This rectangle
* is specified in user space.
*
* aRect The rect to clip to
*/
virtual void PushClipRect(const Rect &aRect);
/* Pop a clip from the DrawTarget. A pop without a corresponding push will
* be ignored.
*/
virtual void PopClip();
/*
* Create a SourceSurface optimized for use with this DrawTarget from
* existing bitmap data in memory.
*
* The SourceSurface does not take ownership of aData, and may be freed at any time.
*/
virtual TemporaryRef<SourceSurface> CreateSourceSurfaceFromData(unsigned char *aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat) const;
/*
* Create a SourceSurface optimized for use with this DrawTarget from
* an arbitrary other SourceSurface. This may return aSourceSurface or some
* other existing surface.
*/
virtual TemporaryRef<SourceSurface> OptimizeSourceSurface(SourceSurface *aSurface) const;
/*
* Create a SourceSurface for a type of NativeSurface. This may fail if the
* draw target does not know how to deal with the type of NativeSurface passed
* in.
*/
virtual TemporaryRef<SourceSurface>
CreateSourceSurfaceFromNativeSurface(const NativeSurface &aSurface) const;
/*
* Create a DrawTarget whose snapshot is optimized for use with this DrawTarget.
*/
virtual TemporaryRef<DrawTarget>
CreateSimilarDrawTarget(const IntSize &aSize, SurfaceFormat aFormat) const;
/*
* Create a path builder with the specified fillmode.
*
* We need the fill mode up front because of Direct2D.
* ID2D1SimplifiedGeometrySink requires the fill mode
* to be set before calling BeginFigure().
*/
virtual TemporaryRef<PathBuilder> CreatePathBuilder(FillRule aFillRule = FillRule::FILL_WINDING) const;
/*
* Create a GradientStops object that holds information about a set of
* gradient stops, this object is required for linear or radial gradient
* patterns to represent the color stops in the gradient.
*
* aStops An array of gradient stops
* aNumStops Number of stops in the array aStops
* aExtendNone This describes how to extend the stop color outside of the
* gradient area.
*/
virtual TemporaryRef<GradientStops>
CreateGradientStops(GradientStop *aStops,
uint32_t aNumStops,
ExtendMode aExtendMode = ExtendMode::CLAMP) const;
virtual TemporaryRef<FilterNode> CreateFilter(FilterType aType);
/*
* Set a transform on the surface, this transform is applied at drawing time
* to both the mask and source of the operation.
*/
virtual void SetTransform(const Matrix &aTransform);
/* Tries to get a native surface for a DrawTarget, this may fail if the
* draw target cannot convert to this surface type.
*/
virtual void *GetNativeSurface(NativeSurfaceType aType) { return mFinalDT->GetNativeSurface(aType); }
private:
Path *GetPathForPathRecording(const Path *aPath) const;
void EnsureStored(const Path *aPath);
RefPtr<DrawEventRecorderPrivate> mRecorder;
RefPtr<DrawTarget> mFinalDT;
};
}
}
#endif /* MOZILLA_GFX_DRAWTARGETRECORDING_H_ */