gfx/skia/trunk/src/core/SkQuadTreePicture.h

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/core/SkQuadTreePicture.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,29 @@
     1.4 +/*
     1.5 + * Copyright 2014 Google Inc.
     1.6 + *
     1.7 + * Use of this source code is governed by a BSD-style license that can be
     1.8 + * found in the LICENSE file.
     1.9 + */
    1.10 +
    1.11 +#ifndef SkQuadTreePicture_DEFINED
    1.12 +#define SkQuadTreePicture_DEFINED
    1.13 +
    1.14 +#include "SkPicture.h"
    1.15 +#include "SkRect.h"
    1.16 +
    1.17 +/**
    1.18 + * Subclass of SkPicture that override the behavior of the
    1.19 + * kOptimizeForClippedPlayback_RecordingFlag by creating an SkQuadGrid
    1.20 + * structure rather than an R-Tree. The quad tree has generally faster
    1.21 + * tree creation time, but slightly slower query times, as compared to
    1.22 + * R-Tree, so some cases may be faster and some cases slower.
    1.23 + */
    1.24 +class SK_API SkQuadTreePicture : public SkPicture {
    1.25 +public:
    1.26 +    SkQuadTreePicture(const SkIRect& bounds) : fBounds(bounds) {}
    1.27 +    virtual SkBBoxHierarchy* createBBoxHierarchy() const SK_OVERRIDE;
    1.28 +private:
    1.29 +    SkIRect fBounds;
    1.30 +};
    1.31 +
    1.32 +#endif

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