| Index: include/core/SkBBHFactory.h
|
| ===================================================================
|
| --- include/core/SkBBHFactory.h (revision 0)
|
| +++ include/core/SkBBHFactory.h (revision 0)
|
| @@ -0,0 +1,69 @@
|
| +/*
|
| + * Copyright 2014 Google Inc.
|
| + *
|
| + * Use of this source code is governed by a BSD-style license that can be
|
| + * found in the LICENSE file.
|
| + */
|
| +
|
| +#ifndef SkBBHFactory_DEFINED
|
| +#define SkBBHFactory_DEFINED
|
| +
|
| +#include "SkSize.h"
|
| +#include "SkPoint.h"
|
| +
|
| +class SkBBoxHierarchy;
|
| +
|
| +class SkBBHFactory {
|
| +public:
|
| + /**
|
| + * Allocate a new SkBBoxHierarchy. Return NULL on failure.
|
| + */
|
| + virtual SkBBoxHierarchy* operator()(int width, int height) const = 0;
|
| + virtual ~SkBBHFactory() {};
|
| +};
|
| +
|
| +class SkQuadTreeFactory : public SkBBHFactory {
|
| +public:
|
| + virtual SkBBoxHierarchy* operator()(int width, int height) const SK_OVERRIDE;
|
| +private:
|
| + typedef SkBBHFactory INHERITED;
|
| +};
|
| +
|
| +
|
| +class SkRTreeFactory : public SkBBHFactory {
|
| +public:
|
| + virtual SkBBoxHierarchy* operator()(int width, int height) const SK_OVERRIDE;
|
| +private:
|
| + typedef SkBBHFactory INHERITED;
|
| +};
|
| +
|
| +class SkTileGridFactory : public SkBBHFactory {
|
| +public:
|
| + struct TileGridInfo {
|
| + /** Tile placement interval */
|
| + SkISize fTileInterval;
|
| +
|
| + /** Pixel coverage overlap between adjacent tiles */
|
| + SkISize fMargin;
|
| +
|
| + /** Offset added to device-space bounding box positions to convert
|
| + * them to tile-grid space. This can be used to adjust the "phase"
|
| + * of the tile grid to match probable query rectangles that will be
|
| + * used to search into the tile grid. As long as the offset is smaller
|
| + * or equal to the margin, there is no need to extend the domain of
|
| + * the tile grid to prevent data loss.
|
| + */
|
| + SkIPoint fOffset;
|
| + };
|
| +
|
| + SkTileGridFactory(const TileGridInfo& info) : fInfo(info) { }
|
| +
|
| + virtual SkBBoxHierarchy* operator()(int width, int height) const SK_OVERRIDE;
|
| +
|
| +private:
|
| + TileGridInfo fInfo;
|
| +
|
| + typedef SkBBHFactory INHERITED;
|
| +};
|
| +
|
| +#endif
|
|
|
| Property changes on: include\core\SkBBHFactory.h
|
| ___________________________________________________________________
|
| Added: svn:eol-style
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| + LF
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|
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|
|