1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
/*
* Copyright (C) 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TileCache_h
#define TileCache_h
#include "IntPointHash.h"
#include "IntRect.h"
#include "TiledBacking.h"
#include "Timer.h"
#include <wtf/HashMap.h>
#include <wtf/Noncopyable.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/RetainPtr.h>
OBJC_CLASS CALayer;
OBJC_CLASS WebTileCacheLayer;
OBJC_CLASS WebTileLayer;
namespace WebCore {
class FloatRect;
class IntPoint;
class IntRect;
typedef Vector<RetainPtr<WebTileLayer> > WebTileLayerList;
class TileCache : public TiledBacking {
WTF_MAKE_NONCOPYABLE(TileCache);
public:
static PassOwnPtr<TileCache> create(WebTileCacheLayer*, const IntSize& tileSize);
~TileCache();
void tileCacheLayerBoundsChanged();
void setNeedsDisplay();
void setNeedsDisplayInRect(const IntRect&);
void drawLayer(WebTileLayer *, CGContextRef);
void setScale(CGFloat);
bool acceleratesDrawing() const { return m_acceleratesDrawing; }
void setAcceleratesDrawing(bool);
void setTilesOpaque(bool);
bool tilesAreOpaque() const { return m_tilesAreOpaque; }
CALayer *tileContainerLayer() const { return m_tileContainerLayer.get(); }
void setTileDebugBorderWidth(float);
void setTileDebugBorderColor(CGColorRef);
IntRect visibleRect() const { return m_visibleRect; }
unsigned blankPixelCount() const;
static unsigned blankPixelCountForTiles(const WebTileLayerList&, IntRect, IntPoint);
private:
TileCache(WebTileCacheLayer*, const IntSize& tileSize);
// TiledBacking member functions.
virtual void visibleRectChanged(const IntRect&) OVERRIDE;
virtual void setIsInWindow(bool) OVERRIDE;
virtual void setTileCoverage(TileCoverage) OVERRIDE;
virtual TileCoverage tileCoverage() const OVERRIDE { return m_tileCoverage; }
virtual void forceRepaint() OVERRIDE;
virtual void setScrollingPerformanceLoggingEnabled(bool flag) OVERRIDE { m_scrollingPerformanceLoggingEnabled = flag; }
virtual bool scrollingPerformanceLoggingEnabled() const OVERRIDE { return m_scrollingPerformanceLoggingEnabled; }
IntRect bounds() const;
typedef IntPoint TileIndex;
IntRect rectForTileIndex(const TileIndex&) const;
void getTileIndexRangeForRect(const IntRect&, TileIndex& topLeft, TileIndex& bottomRight);
IntRect tileCoverageRect() const;
void scheduleTileRevalidation(double interval);
void tileRevalidationTimerFired(Timer<TileCache>*);
void revalidateTiles();
WebTileLayer* tileLayerAtIndex(const TileIndex&) const;
RetainPtr<WebTileLayer> createTileLayer(const IntRect&);
bool shouldShowRepaintCounters() const;
void drawRepaintCounter(WebTileLayer *, CGContextRef);
WebTileCacheLayer* m_tileCacheLayer;
RetainPtr<CALayer> m_tileContainerLayer;
const IntSize m_tileSize;
IntRect m_visibleRect;
typedef HashMap<TileIndex, RetainPtr<WebTileLayer> > TileMap;
TileMap m_tiles;
Timer<TileCache> m_tileRevalidationTimer;
IntRect m_tileCoverageRect;
CGFloat m_scale;
CGFloat m_deviceScaleFactor;
TileCoverage m_tileCoverage;
bool m_isInWindow;
bool m_scrollingPerformanceLoggingEnabled;
bool m_acceleratesDrawing;
bool m_tilesAreOpaque;
RetainPtr<CGColorRef> m_tileDebugBorderColor;
float m_tileDebugBorderWidth;
};
} // namespace WebCore
#endif // TileCache_h
|
