1/*
2 * Copyright 2010, The Android Open Source Project
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *  * Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 *  * Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef PaintTileSetOperation_h
27#define PaintTileSetOperation_h
28
29#include "Tile.h"
30#include "QueuedOperation.h"
31#include "SkRefCnt.h"
32
33namespace WebCore {
34
35class LayerAndroid;
36class TilePainter;
37class ImageTexture;
38
39class PaintTileOperation : public QueuedOperation {
40public:
41    PaintTileOperation(Tile* tile, TilePainter* painter,
42                       GLWebViewState* state, bool isLowResPrefetch);
43    virtual ~PaintTileOperation();
44    virtual bool operator==(const QueuedOperation* operation);
45    virtual void run();
46    virtual void* uniquePtr() { return m_tile; }
47    // returns a rendering priority for m_tile, lower values are processed faster
48    virtual int priority();
49
50    TilePainter* painter() { return m_painter; }
51    void updatePainter(TilePainter* painter);
52    float scale() { return m_tile->scale(); }
53
54private:
55    Tile* m_tile;
56    TilePainter* m_painter;
57    GLWebViewState* m_state;
58    bool m_isLowResPrefetch;
59};
60
61class ScaleFilter : public OperationFilter {
62public:
63    ScaleFilter(const TilePainter* painter, float scale)
64        : m_painter(painter)
65        , m_scale(scale) {}
66    virtual bool check(QueuedOperation* operation)
67    {
68        PaintTileOperation* op = static_cast<PaintTileOperation*>(operation);
69        return ((op->painter() == m_painter) && (op->scale() != m_scale));
70    }
71private:
72    const TilePainter* m_painter;
73    float m_scale;
74};
75
76
77class TilePainterFilter : public OperationFilter {
78public:
79    TilePainterFilter(TilePainter* painter) : m_painter(painter) {}
80    virtual bool check(QueuedOperation* operation)
81    {
82        PaintTileOperation* op = static_cast<PaintTileOperation*>(operation);
83        return op->painter() == m_painter;
84    }
85private:
86    TilePainter* m_painter;
87};
88
89}
90
91#endif // PaintTileSetOperation_h
92