The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/gpu/GrRectanizer.h
gfx/skia/trunk/src/gpu/GrRectanizer.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:6262f2729126 |
|---|---|
| 1 /* | |
| 2 * Copyright 2010 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef GrRectanizer_DEFINED | |
| 9 #define GrRectanizer_DEFINED | |
| 10 | |
| 11 #include "GrPoint.h" | |
| 12 | |
| 13 class GrRectanizerPurgeListener { | |
| 14 public: | |
| 15 virtual ~GrRectanizerPurgeListener() {} | |
| 16 | |
| 17 virtual void notifyPurgeStrip(void*, int yCoord) = 0; | |
| 18 }; | |
| 19 | |
| 20 class GrRectanizer { | |
| 21 public: | |
| 22 GrRectanizer(int width, int height) : fWidth(width), fHeight(height) { | |
| 23 SkASSERT(width >= 0); | |
| 24 SkASSERT(height >= 0); | |
| 25 } | |
| 26 | |
| 27 virtual ~GrRectanizer() {} | |
| 28 | |
| 29 virtual void reset() = 0; | |
| 30 | |
| 31 int width() const { return fWidth; } | |
| 32 int height() const { return fHeight; } | |
| 33 | |
| 34 virtual bool addRect(int width, int height, GrIPoint16* loc) = 0; | |
| 35 virtual float percentFull() const = 0; | |
| 36 | |
| 37 // return the Y-coordinate of a strip that should be purged, given height | |
| 38 // i.e. return the oldest such strip, or some other criteria. Return -1 | |
| 39 // if there is no candidate | |
| 40 virtual int stripToPurge(int height) const = 0; | |
| 41 virtual void purgeStripAtY(int yCoord) = 0; | |
| 42 | |
| 43 /** | |
| 44 * Our factory, which returns the subclass du jour | |
| 45 */ | |
| 46 static GrRectanizer* Factory(int width, int height); | |
| 47 | |
| 48 private: | |
| 49 int fWidth; | |
| 50 int fHeight; | |
| 51 }; | |
| 52 | |
| 53 #endif |
