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17eea57296
Badly-behaved consumers of DrawTargetRecording can trigger recording of draw calls that will fail to allocate required draw targets when the recording is replayed. This patch tries to guard against this by detecting these situations at record-time rather than crashing at replay-time. When such a situation is detected, it will crash (for content processes, to catch such scenarios) or gracefully fail (for other processes). Differential Revision: https://phabricator.services.mozilla.com/D11527 --HG-- extra : moz-landing-system : lando
226 lines
9.6 KiB
C++
226 lines
9.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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_SOURCESURFACESKIA_H
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#define _MOZILLA_GFX_SOURCESURFACESKIA_H
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#include "skia/include/core/SkCanvas.h"
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#include "skia/include/core/SkSurface.h"
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#include "2D.h"
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#include "HelpersSkia.h"
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#include "Rect.h"
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#include "PathSkia.h"
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#include <sstream>
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#include <vector>
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#ifdef MOZ_WIDGET_COCOA
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#include <ApplicationServices/ApplicationServices.h>
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#endif
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namespace mozilla {
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namespace gfx {
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class SourceSurfaceSkia;
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class BorrowedCGContext;
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class DrawTargetSkia : public DrawTarget
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{
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public:
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MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DrawTargetSkia, override)
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DrawTargetSkia();
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virtual ~DrawTargetSkia();
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virtual DrawTargetType GetType() const override;
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virtual BackendType GetBackendType() const override { return BackendType::SKIA; }
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virtual already_AddRefed<SourceSurface> Snapshot() override;
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virtual IntSize GetSize() const override { return mSize; };
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virtual bool LockBits(uint8_t** aData, IntSize* aSize,
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int32_t* aStride, SurfaceFormat* aFormat,
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IntPoint* aOrigin = nullptr) override;
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virtual void ReleaseBits(uint8_t* aData) override;
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virtual void Flush() override;
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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 = DrawSurfaceOptions(),
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const DrawOptions &aOptions = DrawOptions()) override;
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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()) override;
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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) override;
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virtual void ClearRect(const Rect &aRect) override;
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virtual void CopySurface(SourceSurface *aSurface,
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const IntRect &aSourceRect,
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const IntPoint &aDestination) override;
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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()) override;
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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()) override;
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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()) override;
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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()) override;
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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()) override;
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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()) override;
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virtual void StrokeGlyphs(ScaledFont* aFont,
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const GlyphBuffer& aBuffer,
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const Pattern& aPattern,
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const StrokeOptions& aStrokeOptions = StrokeOptions(),
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const DrawOptions& aOptions = DrawOptions()) override;
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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()) override;
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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()) override;
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virtual bool Draw3DTransformedSurface(SourceSurface* aSurface,
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const Matrix4x4& aMatrix) override;
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virtual void PushClip(const Path *aPath) override;
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virtual void PushClipRect(const Rect& aRect) override;
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virtual void PushDeviceSpaceClipRects(const IntRect* aRects, uint32_t aCount) override;
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virtual void PopClip() override;
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virtual void PushLayer(bool aOpaque, Float aOpacity,
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SourceSurface* aMask,
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const Matrix& aMaskTransform,
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const IntRect& aBounds = IntRect(),
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bool aCopyBackground = false) override;
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virtual void PushLayerWithBlend(bool aOpaque, Float aOpacity,
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SourceSurface* aMask,
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const Matrix& aMaskTransform,
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const IntRect& aBounds = IntRect(),
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bool aCopyBackground = false,
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CompositionOp aCompositionOp = CompositionOp::OP_OVER) override;
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virtual void PopLayer() override;
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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 override;
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virtual already_AddRefed<SourceSurface> OptimizeSourceSurface(SourceSurface *aSurface) const override;
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virtual already_AddRefed<SourceSurface> OptimizeSourceSurfaceForUnknownAlpha(SourceSurface *aSurface) const override;
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virtual already_AddRefed<SourceSurface>
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CreateSourceSurfaceFromNativeSurface(const NativeSurface &aSurface) const override;
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virtual already_AddRefed<DrawTarget>
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CreateSimilarDrawTarget(const IntSize &aSize, SurfaceFormat aFormat) const override;
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virtual bool CanCreateSimilarDrawTarget(const IntSize& aSize, SurfaceFormat aFormat) const override;
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virtual already_AddRefed<PathBuilder> CreatePathBuilder(FillRule aFillRule = FillRule::FILL_WINDING) const override;
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virtual already_AddRefed<GradientStops> CreateGradientStops(GradientStop *aStops, uint32_t aNumStops, ExtendMode aExtendMode = ExtendMode::CLAMP) const override;
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virtual already_AddRefed<FilterNode> CreateFilter(FilterType aType) override;
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virtual void SetTransform(const Matrix &aTransform) override;
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virtual void *GetNativeSurface(NativeSurfaceType aType) override;
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virtual void DetachAllSnapshots() override { MarkChanged(); }
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bool Init(const IntSize &aSize, SurfaceFormat aFormat);
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bool Init(unsigned char* aData, const IntSize &aSize, int32_t aStride, SurfaceFormat aFormat, bool aUninitialized = false);
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bool Init(SkCanvas* aCanvas);
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#ifdef USE_SKIA_GPU
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bool InitWithGrContext(GrContext* aGrContext,
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const IntSize &aSize,
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SurfaceFormat aFormat,
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bool aCached);
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virtual bool
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InitWithGrContext(GrContext* aGrContext,
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const IntSize &aSize,
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SurfaceFormat aFormat) override {
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return InitWithGrContext(aGrContext, aSize, aFormat, false);
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}
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already_AddRefed<SourceSurface> OptimizeGPUSourceSurface(SourceSurface *aSurface) const;
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#endif
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// Skia assumes that texture sizes fit in 16-bit signed integers.
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static size_t GetMaxSurfaceSize() {
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return 32767;
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}
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operator std::string() const {
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std::stringstream stream;
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stream << "DrawTargetSkia(" << this << ")";
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return stream.str();
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}
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private:
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friend class SourceSurfaceSkia;
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void MarkChanged();
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bool ShouldLCDRenderText(FontType aFontType, AntialiasMode aAntialiasMode);
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void DrawGlyphs(ScaledFont* aFont,
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const GlyphBuffer& aBuffer,
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const Pattern& aPattern,
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const StrokeOptions* aStrokeOptions = nullptr,
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const DrawOptions& aOptions = DrawOptions());
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bool UsingSkiaGPU() const;
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struct PushedLayer
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{
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PushedLayer(bool aOldPermitSubpixelAA,
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SourceSurface* aMask)
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: mOldPermitSubpixelAA(aOldPermitSubpixelAA),
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mMask(aMask)
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{}
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bool mOldPermitSubpixelAA;
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RefPtr<SourceSurface> mMask;
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};
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std::vector<PushedLayer> mPushedLayers;
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#ifdef USE_SKIA_GPU
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sk_sp<GrContext> mGrContext;
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#endif
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IntSize mSize;
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sk_sp<SkSurface> mSurface;
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SkCanvas* mCanvas;
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RefPtr<SourceSurfaceSkia> mSnapshot;
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Mutex mSnapshotLock;
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#ifdef MOZ_WIDGET_COCOA
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friend class BorrowedCGContext;
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CGContextRef BorrowCGContext(const DrawOptions &aOptions);
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void ReturnCGContext(CGContextRef);
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bool FillGlyphsWithCG(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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CGContextRef mCG;
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CGColorSpaceRef mColorSpace;
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uint8_t* mCanvasData;
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IntSize mCGSize;
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bool mNeedLayer;
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#endif
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};
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} // namespace gfx
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} // namespace mozilla
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#endif // _MOZILLA_GFX_SOURCESURFACESKIA_H
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