mirror of
https://github.com/mozilla/gecko-dev.git
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173 lines
6.5 KiB
C++
173 lines
6.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_GFX_DRAWTARGETCAPTURE_H_
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#define MOZILLA_GFX_DRAWTARGETCAPTURE_H_
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#include "2D.h"
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#include <vector>
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#include "Filters.h"
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namespace mozilla {
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namespace gfx {
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class DrawingCommand;
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class DrawTargetCaptureImpl : public DrawTargetCapture
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{
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public:
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DrawTargetCaptureImpl()
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{}
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bool Init(const IntSize& aSize, DrawTarget* aRefDT);
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virtual BackendType GetBackendType() const { return mRefDT->GetBackendType(); }
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virtual DrawTargetType GetType() const { return mRefDT->GetType(); }
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virtual bool IsCaptureDT() const { return true; }
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virtual already_AddRefed<SourceSurface> Snapshot();
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virtual void DetachAllSnapshots();
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virtual IntSize GetSize() { return mSize; }
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virtual void Flush() {}
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virtual void DrawSurface(SourceSurface *aSurface,
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const Rect &aDest,
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const Rect &aSource,
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const DrawSurfaceOptions &aSurfOptions,
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const DrawOptions &aOptions);
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virtual void DrawFilter(FilterNode *aNode,
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const Rect &aSourceRect,
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const Point &aDestPoint,
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const DrawOptions &aOptions = DrawOptions());
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virtual void DrawSurfaceWithShadow(SourceSurface *aSurface,
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const Point &aDest,
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const Color &aColor,
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const Point &aOffset,
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Float aSigma,
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CompositionOp aOperator) { /* Not implemented */ }
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virtual void ClearRect(const Rect &aRect);
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virtual void MaskSurface(const Pattern &aSource,
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SourceSurface *aMask,
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Point aOffset,
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const DrawOptions &aOptions = DrawOptions());
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virtual void CopySurface(SourceSurface *aSurface,
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const IntRect &aSourceRect,
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const IntPoint &aDestination);
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virtual void FillRect(const Rect &aRect,
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const Pattern &aPattern,
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const DrawOptions &aOptions = DrawOptions());
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virtual void StrokeRect(const Rect &aRect,
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const Pattern &aPattern,
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const StrokeOptions &aStrokeOptions = StrokeOptions(),
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const DrawOptions &aOptions = DrawOptions());
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virtual void StrokeLine(const Point &aStart,
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const Point &aEnd,
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const Pattern &aPattern,
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const StrokeOptions &aStrokeOptions = StrokeOptions(),
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const DrawOptions &aOptions = DrawOptions());
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virtual void Stroke(const Path *aPath,
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const Pattern &aPattern,
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const StrokeOptions &aStrokeOptions = StrokeOptions(),
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const DrawOptions &aOptions = DrawOptions());
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virtual void Fill(const Path *aPath,
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const Pattern &aPattern,
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const DrawOptions &aOptions = DrawOptions());
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virtual void FillGlyphs(ScaledFont *aFont,
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const GlyphBuffer &aBuffer,
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const Pattern &aPattern,
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const DrawOptions &aOptions = DrawOptions(),
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const GlyphRenderingOptions *aRenderingOptions = nullptr);
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virtual void Mask(const Pattern &aSource,
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const Pattern &aMask,
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const DrawOptions &aOptions = DrawOptions());
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virtual void PushClip(const Path *aPath);
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virtual void PushClipRect(const Rect &aRect);
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virtual void PopClip();
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virtual void SetTransform(const Matrix &aTransform);
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virtual already_AddRefed<SourceSurface> CreateSourceSurfaceFromData(unsigned char *aData,
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const IntSize &aSize,
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int32_t aStride,
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SurfaceFormat aFormat) const
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{
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return mRefDT->CreateSourceSurfaceFromData(aData, aSize, aStride, aFormat);
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}
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virtual already_AddRefed<SourceSurface> OptimizeSourceSurface(SourceSurface *aSurface) const
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{
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return mRefDT->OptimizeSourceSurface(aSurface);
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}
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virtual already_AddRefed<SourceSurface>
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CreateSourceSurfaceFromNativeSurface(const NativeSurface &aSurface) const
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{
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return mRefDT->CreateSourceSurfaceFromNativeSurface(aSurface);
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}
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virtual already_AddRefed<DrawTarget>
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CreateSimilarDrawTarget(const IntSize &aSize, SurfaceFormat aFormat) const
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{
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return mRefDT->CreateSimilarDrawTarget(aSize, aFormat);
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}
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virtual already_AddRefed<PathBuilder> CreatePathBuilder(FillRule aFillRule = FillRule::FILL_WINDING) const
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{
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return mRefDT->CreatePathBuilder(aFillRule);
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}
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virtual already_AddRefed<GradientStops>
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CreateGradientStops(GradientStop *aStops,
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uint32_t aNumStops,
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ExtendMode aExtendMode = ExtendMode::CLAMP) const
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{
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return mRefDT->CreateGradientStops(aStops, aNumStops, aExtendMode);
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}
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virtual already_AddRefed<FilterNode> CreateFilter(FilterType aType)
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{
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return mRefDT->CreateFilter(aType);
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}
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void ReplayToDrawTarget(DrawTarget* aDT, const Matrix& aTransform);
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bool ContainsOnlyColoredGlyphs(RefPtr<ScaledFont>& aScaledFont, Color& aColor, std::vector<Glyph>& aGlyphs);
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protected:
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~DrawTargetCaptureImpl();
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private:
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// This storage system was used to minimize the amount of heap allocations
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// that are required while recording. It should be noted there's no
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// guarantees on the alignments of DrawingCommands allocated in this array.
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template<typename T>
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T* AppendToCommandList()
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{
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size_t oldSize = mDrawCommandStorage.size();
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mDrawCommandStorage.resize(mDrawCommandStorage.size() + sizeof(T) + sizeof(uint32_t));
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uint8_t* nextDrawLocation = &mDrawCommandStorage.front() + oldSize;
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*(uint32_t*)(nextDrawLocation) = sizeof(T) + sizeof(uint32_t);
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return reinterpret_cast<T*>(nextDrawLocation + sizeof(uint32_t));
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}
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RefPtr<DrawTarget> mRefDT;
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IntSize mSize;
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std::vector<uint8_t> mDrawCommandStorage;
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};
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} // namespace gfx
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} // namespace mozilla
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#endif /* MOZILLA_GFX_DRAWTARGETCAPTURE_H_ */
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