gfx/2d/DrawTargetTiled.h

   1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef MOZILLA_GFX_DRAWTARGETTILED_H_
   7 #define MOZILLA_GFX_DRAWTARGETTILED_H_
   8
   9 #include "2D.h"
  10 #include "Filters.h"
  11
  12 #include <vector>
  13
  14 namespace mozilla {
  15 namespace gfx {
  16
  17 struct TileInternal : public Tile {
  18   TileInternal()
  19     : mClippedOut(false)
  20   {}
  21
  22   explicit TileInternal(const Tile& aOther)
  23     : Tile(aOther)
  24     , mClippedOut(false)
  25   {}
  26
  27   bool mClippedOut;
  28 };
  29
  30
  31 class DrawTargetTiled : public DrawTarget
  32 {
  33 public:
  34   DrawTargetTiled();
  35
  36   bool Init(const TileSet& mTiles);
  37
  38   virtual bool IsTiledDrawTarget() const { return true; }
  39
  40   virtual DrawTargetType GetType() const MOZ_OVERRIDE { return mTiles[0].mDrawTarget->GetType(); }
  41   virtual BackendType GetBackendType() const { return mTiles[0].mDrawTarget->GetBackendType(); }
  42   virtual TemporaryRef<SourceSurface> Snapshot();
  43   virtual IntSize GetSize() { return IntSize(mRect.XMost(), mRect.YMost()); }
  44
  45   virtual void Flush();
  46   virtual void DrawSurface(SourceSurface *aSurface,
  47                            const Rect &aDest,
  48                            const Rect &aSource,
  49                            const DrawSurfaceOptions &aSurfOptions,
  50                            const DrawOptions &aOptions);
  51   virtual void DrawFilter(FilterNode *aNode,
  52                           const Rect &aSourceRect,
  53                           const Point &aDestPoint,
  54                           const DrawOptions &aOptions = DrawOptions());
  55   virtual void DrawSurfaceWithShadow(SourceSurface *aSurface,
  56                                      const Point &aDest,
  57                                      const Color &aColor,
  58                                      const Point &aOffset,
  59                                      Float aSigma,
  60                                      CompositionOp aOperator) { /* Not implemented */ MOZ_CRASH(); }
  61
  62   virtual void ClearRect(const Rect &aRect);
  63   virtual void MaskSurface(const Pattern &aSource,
  64                            SourceSurface *aMask,
  65                            Point aOffset,
  66                            const DrawOptions &aOptions = DrawOptions());
  67
  68   virtual void CopySurface(SourceSurface *aSurface,
  69                            const IntRect &aSourceRect,
  70                            const IntPoint &aDestination);
  71
  72   virtual void FillRect(const Rect &aRect,
  73                         const Pattern &aPattern,
  74                         const DrawOptions &aOptions = DrawOptions());
  75   virtual void StrokeRect(const Rect &aRect,
  76                           const Pattern &aPattern,
  77                           const StrokeOptions &aStrokeOptions = StrokeOptions(),
  78                           const DrawOptions &aOptions = DrawOptions());
  79   virtual void StrokeLine(const Point &aStart,
  80                           const Point &aEnd,
  81                           const Pattern &aPattern,
  82                           const StrokeOptions &aStrokeOptions = StrokeOptions(),
  83                           const DrawOptions &aOptions = DrawOptions());
  84   virtual void Stroke(const Path *aPath,
  85                       const Pattern &aPattern,
  86                       const StrokeOptions &aStrokeOptions = StrokeOptions(),
  87                       const DrawOptions &aOptions = DrawOptions());
  88   virtual void Fill(const Path *aPath,
  89                     const Pattern &aPattern,
  90                     const DrawOptions &aOptions = DrawOptions());
  91   virtual void FillGlyphs(ScaledFont *aFont,
  92                           const GlyphBuffer &aBuffer,
  93                           const Pattern &aPattern,
  94                           const DrawOptions &aOptions = DrawOptions(),
  95                           const GlyphRenderingOptions *aRenderingOptions = nullptr);
  96   virtual void Mask(const Pattern &aSource,
  97                     const Pattern &aMask,
  98                     const DrawOptions &aOptions = DrawOptions());
  99   virtual void PushClip(const Path *aPath);
 100   virtual void PushClipRect(const Rect &aRect);
 101   virtual void PopClip();
 102
 103   virtual void SetTransform(const Matrix &aTransform);
 104
 105   virtual TemporaryRef<SourceSurface> CreateSourceSurfaceFromData(unsigned char *aData,
 106                                                                   const IntSize &aSize,
 107                                                                   int32_t aStride,
 108                                                                   SurfaceFormat aFormat) const
 109   {
 110     return mTiles[0].mDrawTarget->CreateSourceSurfaceFromData(aData, aSize, aStride, aFormat);
 111   }
 112   virtual TemporaryRef<SourceSurface> OptimizeSourceSurface(SourceSurface *aSurface) const
 113   {
 114     return mTiles[0].mDrawTarget->OptimizeSourceSurface(aSurface);
 115   }
 116
 117   virtual TemporaryRef<SourceSurface>
 118     CreateSourceSurfaceFromNativeSurface(const NativeSurface &aSurface) const
 119   {
 120     return mTiles[0].mDrawTarget->CreateSourceSurfaceFromNativeSurface(aSurface);
 121   }
 122
 123   virtual TemporaryRef<DrawTarget>
 124     CreateSimilarDrawTarget(const IntSize &aSize, SurfaceFormat aFormat) const
 125   {
 126     return mTiles[0].mDrawTarget->CreateSimilarDrawTarget(aSize, aFormat);
 127   }
 128
 129   virtual TemporaryRef<PathBuilder> CreatePathBuilder(FillRule aFillRule = FillRule::FILL_WINDING) const
 130   {
 131     return mTiles[0].mDrawTarget->CreatePathBuilder(aFillRule);
 132   }
 133
 134   virtual TemporaryRef<GradientStops>
 135     CreateGradientStops(GradientStop *aStops,
 136                         uint32_t aNumStops,
 137                         ExtendMode aExtendMode = ExtendMode::CLAMP) const
 138   {
 139     return mTiles[0].mDrawTarget->CreateGradientStops(aStops, aNumStops, aExtendMode);
 140   }
 141   virtual TemporaryRef<FilterNode> CreateFilter(FilterType aType)
 142   {
 143     return mTiles[0].mDrawTarget->CreateFilter(aType);
 144   }
 145
 146 private:
 147   std::vector<TileInternal> mTiles;
 148   std::vector<std::vector<uint32_t> > mClippedOutTilesStack;
 149   IntRect mRect;
 150 };
 151
 152 class SnapshotTiled : public SourceSurface
 153 {
 154 public:
 155   SnapshotTiled(const std::vector<TileInternal>& aTiles, const IntRect& aRect)
 156     : mRect(aRect)
 157   {
 158     for (size_t i = 0; i < aTiles.size(); i++) {
 159       mSnapshots.push_back(aTiles[i].mDrawTarget->Snapshot());
 160       mOrigins.push_back(aTiles[i].mTileOrigin);
 161     }
 162   }
 163
 164   virtual SurfaceType GetType() const { return SurfaceType::TILED; }
 165   virtual IntSize GetSize() const { return IntSize(mRect.XMost(), mRect.YMost()); }
 166   virtual SurfaceFormat GetFormat() const { return mSnapshots[0]->GetFormat(); }
 167
 168   virtual TemporaryRef<DataSourceSurface> GetDataSurface()
 169   {
 170     RefPtr<DataSourceSurface> surf = Factory::CreateDataSourceSurface(GetSize(), GetFormat());
 171
 172     DataSourceSurface::MappedSurface mappedSurf;
 173     surf->Map(DataSourceSurface::MapType::WRITE, &mappedSurf);
 174
 175     {
 176       RefPtr<DrawTarget> dt =
 177         Factory::CreateDrawTargetForData(BackendType::CAIRO, mappedSurf.mData,
 178         GetSize(), mappedSurf.mStride, GetFormat());
 179
 180       for (size_t i = 0; i < mSnapshots.size(); i++) {
 181         RefPtr<DataSourceSurface> dataSurf = mSnapshots[i]->GetDataSurface();
 182         dt->CopySurface(dataSurf, IntRect(IntPoint(0, 0), mSnapshots[i]->GetSize()), mOrigins[i]);
 183       }
 184     }
 185     surf->Unmap();
 186
 187     return surf.forget();
 188   }
 189
 190   std::vector<RefPtr<SourceSurface>> mSnapshots;
 191   std::vector<IntPoint> mOrigins;
 192   IntRect mRect;
 193 };
 194
 195 }
 196 }
 197
 198 #endif