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DrawTargetTiled.h
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DrawTargetTiled.h
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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_DRAWTARGETTILED_H_
#define MOZILLA_GFX_DRAWTARGETTILED_H_
#include "2D.h"
#include "mozilla/Vector.h"
#include "Filters.h"
#include "Logging.h"
#include <vector>
namespace mozilla {
namespace gfx {
struct TileInternal : public Tile {
TileInternal() : mClippedOut(false) {}
explicit TileInternal(const Tile &aOther)
: Tile(aOther), mClippedOut(false) {}
bool mClippedOut;
};
class DrawTargetTiled : public DrawTarget {
public:
DrawTargetTiled();
bool Init(const TileSet &mTiles);
virtual bool IsTiledDrawTarget() const override { return true; }
virtual bool IsCaptureDT() const override {
return mTiles[0].mDrawTarget->IsCaptureDT();
}
virtual DrawTargetType GetType() const override {
return mTiles[0].mDrawTarget->GetType();
}
virtual BackendType GetBackendType() const override {
return mTiles[0].mDrawTarget->GetBackendType();
}
virtual already_AddRefed<SourceSurface> Snapshot() override;
virtual void DetachAllSnapshots() override;
virtual IntSize GetSize() const override {
MOZ_ASSERT(mRect.Width() > 0 && mRect.Height() > 0);
return IntSize(mRect.XMost(), mRect.YMost());
}
virtual IntRect GetRect() const override { return mRect; }
virtual void Flush() override;
virtual void DrawSurface(SourceSurface *aSurface, const Rect &aDest,
const Rect &aSource,
const DrawSurfaceOptions &aSurfOptions,
const DrawOptions &aOptions) override;
virtual void DrawFilter(FilterNode *aNode, const Rect &aSourceRect,
const Point &aDestPoint,
const DrawOptions &aOptions = DrawOptions()) override;
virtual void DrawSurfaceWithShadow(
SourceSurface *aSurface, const Point &aDest, const Color &aColor,
const Point &aOffset, Float aSigma,
CompositionOp aOperator) override { /* Not implemented */
MOZ_CRASH("GFX: DrawSurfaceWithShadow");
}
virtual void ClearRect(const Rect &aRect) override;
virtual void MaskSurface(
const Pattern &aSource, SourceSurface *aMask, Point aOffset,
const DrawOptions &aOptions = DrawOptions()) override;
virtual void CopySurface(SourceSurface *aSurface, const IntRect &aSourceRect,
const IntPoint &aDestination) override;
virtual void FillRect(const Rect &aRect, const Pattern &aPattern,
const DrawOptions &aOptions = DrawOptions()) override;
virtual void StrokeRect(const Rect &aRect, const Pattern &aPattern,
const StrokeOptions &aStrokeOptions = StrokeOptions(),
const DrawOptions &aOptions = DrawOptions()) override;
virtual void StrokeLine(const Point &aStart, const Point &aEnd,
const Pattern &aPattern,
const StrokeOptions &aStrokeOptions = StrokeOptions(),
const DrawOptions &aOptions = DrawOptions()) override;
virtual void Stroke(const Path *aPath, const Pattern &aPattern,
const StrokeOptions &aStrokeOptions = StrokeOptions(),
const DrawOptions &aOptions = DrawOptions()) override;
virtual void Fill(const Path *aPath, const Pattern &aPattern,
const DrawOptions &aOptions = DrawOptions()) override;
virtual void FillGlyphs(ScaledFont *aFont, const GlyphBuffer &aBuffer,
const Pattern &aPattern,
const DrawOptions &aOptions = DrawOptions()) override;
virtual void Mask(const Pattern &aSource, const Pattern &aMask,
const DrawOptions &aOptions = DrawOptions()) override;
virtual void PushClip(const Path *aPath) override;
virtual void PushClipRect(const Rect &aRect) override;
virtual void PopClip() override;
virtual void PushLayer(bool aOpaque, Float aOpacity, SourceSurface *aMask,
const Matrix &aMaskTransform,
const IntRect &aBounds = IntRect(),
bool aCopyBackground = false) override;
virtual void PushLayerWithBlend(
bool aOpaque, Float aOpacity, SourceSurface *aMask,
const Matrix &aMaskTransform, const IntRect &aBounds = IntRect(),
bool aCopyBackground = false,
CompositionOp = CompositionOp::OP_OVER) override;
virtual void PopLayer() override;
virtual void PadEdges(const IntRegion &aRegion) override;
virtual void SetTransform(const Matrix &aTransform) override;
virtual void SetPermitSubpixelAA(bool aPermitSubpixelAA) override;
virtual already_AddRefed<SourceSurface> CreateSourceSurfaceFromData(
unsigned char *aData, const IntSize &aSize, int32_t aStride,
SurfaceFormat aFormat) const override {
return mTiles[0].mDrawTarget->CreateSourceSurfaceFromData(aData, aSize,
aStride, aFormat);
}
virtual already_AddRefed<SourceSurface> OptimizeSourceSurface(
SourceSurface *aSurface) const override {
return mTiles[0].mDrawTarget->OptimizeSourceSurface(aSurface);
}
virtual already_AddRefed<SourceSurface> CreateSourceSurfaceFromNativeSurface(
const NativeSurface &aSurface) const override {
return mTiles[0].mDrawTarget->CreateSourceSurfaceFromNativeSurface(
aSurface);
}
virtual already_AddRefed<DrawTarget> CreateSimilarDrawTarget(
const IntSize &aSize, SurfaceFormat aFormat) const override {
return mTiles[0].mDrawTarget->CreateSimilarDrawTarget(aSize, aFormat);
}
virtual bool CanCreateSimilarDrawTarget(
const IntSize &aSize, SurfaceFormat aFormat) const override {
return mTiles[0].mDrawTarget->CanCreateSimilarDrawTarget(aSize, aFormat);
}
virtual already_AddRefed<PathBuilder> CreatePathBuilder(
FillRule aFillRule = FillRule::FILL_WINDING) const override {
return mTiles[0].mDrawTarget->CreatePathBuilder(aFillRule);
}
virtual already_AddRefed<GradientStops> CreateGradientStops(
GradientStop *aStops, uint32_t aNumStops,
ExtendMode aExtendMode = ExtendMode::CLAMP) const override {
return mTiles[0].mDrawTarget->CreateGradientStops(aStops, aNumStops,
aExtendMode);
}
virtual already_AddRefed<FilterNode> CreateFilter(FilterType aType) override {
return mTiles[0].mDrawTarget->CreateFilter(aType);
}
private:
std::vector<TileInternal> mTiles;
// mClippedOutTilesStack[clipIndex][tileIndex] is true if the tile at
// tileIndex has become completely clipped out at the clip stack depth
// clipIndex.
Vector<std::vector<bool>, 8> mClippedOutTilesStack;
IntRect mRect;
struct PushedLayer {
explicit PushedLayer(bool aOldPermitSubpixelAA)
: mOldPermitSubpixelAA(aOldPermitSubpixelAA) {}
bool mOldPermitSubpixelAA;
};
std::vector<PushedLayer> mPushedLayers;
};
class SnapshotTiled : public SourceSurface {
public:
SnapshotTiled(const std::vector<TileInternal> &aTiles, const IntRect &aRect)
: mRect(aRect) {
for (size_t i = 0; i < aTiles.size(); i++) {
mSnapshots.push_back(aTiles[i].mDrawTarget->Snapshot());
mOrigins.push_back(aTiles[i].mTileOrigin);
}
}
virtual SurfaceType GetType() const override { return SurfaceType::TILED; }
virtual IntSize GetSize() const override {
MOZ_ASSERT(mRect.Width() > 0 && mRect.Height() > 0);
return IntSize(mRect.XMost(), mRect.YMost());
}
virtual IntRect GetRect() const override { return mRect; }
virtual SurfaceFormat GetFormat() const override {
return mSnapshots[0]->GetFormat();
}
virtual already_AddRefed<DataSourceSurface> GetDataSurface() override {
RefPtr<DataSourceSurface> surf =
Factory::CreateDataSourceSurface(mRect.Size(), GetFormat());
if (!surf) {
gfxCriticalError()
<< "DrawTargetTiled::GetDataSurface failed to allocate surface";
return nullptr;
}
DataSourceSurface::MappedSurface mappedSurf;
if (!surf->Map(DataSourceSurface::MapType::WRITE, &mappedSurf)) {
gfxCriticalError()
<< "DrawTargetTiled::GetDataSurface failed to map surface";
return nullptr;
}
{
RefPtr<DrawTarget> dt = Factory::CreateDrawTargetForData(
BackendType::CAIRO, mappedSurf.mData, mRect.Size(),
mappedSurf.mStride, GetFormat());
if (!dt) {
gfxWarning() << "DrawTargetTiled::GetDataSurface failed in "
"CreateDrawTargetForData";
surf->Unmap();
return nullptr;
}
for (size_t i = 0; i < mSnapshots.size(); i++) {
RefPtr<DataSourceSurface> dataSurf = mSnapshots[i]->GetDataSurface();
dt->CopySurface(dataSurf,
IntRect(IntPoint(0, 0), mSnapshots[i]->GetSize()),
mOrigins[i] - mRect.TopLeft());
}
}
surf->Unmap();
return surf.forget();
}
std::vector<RefPtr<SourceSurface>> mSnapshots;
std::vector<IntPoint> mOrigins;
IntRect mRect;
};
} // namespace gfx
} // namespace mozilla
#endif