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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/*
* Copyright 2011, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER OR
* 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.
*/
#include "config.h"
#include "PaintedSurface.h"
#include "LayerAndroid.h"
#include "TiledTexture.h"
#include "TilesManager.h"
#include "SkCanvas.h"
#include "SkPicture.h"
#include <cutils/log.h>
#include <wtf/CurrentTime.h>
#include <wtf/text/CString.h>
#undef XLOGC
#define XLOGC(...) android_printLog(ANDROID_LOG_DEBUG, "PaintedSurface", __VA_ARGS__)
#ifdef DEBUG
#undef XLOG
#define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "PaintedSurface", __VA_ARGS__)
#else
#undef XLOG
#define XLOG(...)
#endif // DEBUG
// Allows layers using less than MAX_UNCLIPPED_AREA tiles to
// schedule all of them instead of clipping the area with the visible rect.
#define MAX_UNCLIPPED_AREA 16
namespace WebCore {
PaintedSurface::PaintedSurface()
: m_drawingLayer(0)
, m_paintingLayer(0)
, m_tiledTexture(0)
, m_scale(0)
, m_pictureUsed(0)
{
TilesManager::instance()->addPaintedSurface(this);
#ifdef DEBUG_COUNT
ClassTracker::instance()->increment("PaintedSurface");
#endif
m_tiledTexture = new DualTiledTexture(this);
}
PaintedSurface::~PaintedSurface()
{
#ifdef DEBUG_COUNT
ClassTracker::instance()->decrement("PaintedSurface");
#endif
delete m_tiledTexture;
}
void PaintedSurface::prepare(GLWebViewState* state)
{
XLOG("PS %p has PL %p, DL %p", this, m_paintingLayer, m_drawingLayer);
LayerAndroid* paintingLayer = m_paintingLayer;
if (!paintingLayer)
paintingLayer = m_drawingLayer;
if (!paintingLayer)
return;
bool startFastSwap = false;
if (state->isScrolling()) {
// when scrolling, block updates and swap tiles as soon as they're ready
startFastSwap = true;
}
XLOG("prepare layer %d %x at scale %.2f",
paintingLayer->uniqueId(), paintingLayer,
paintingLayer->getScale());
IntRect visibleArea = computeVisibleArea(paintingLayer);
m_scale = state->scale();
// If we do not have text, we may as well limit ourselves to
// a scale factor of one... this saves up textures.
if (m_scale > 1 && !paintingLayer->hasText())
m_scale = 1;
m_tiledTexture->prepare(state, m_scale, m_pictureUsed != paintingLayer->pictureUsed(),
startFastSwap, visibleArea);
}
bool PaintedSurface::draw()
{
if (!m_drawingLayer || !m_drawingLayer->needsTexture())
return false;
bool askRedraw = false;
if (m_tiledTexture)
askRedraw = m_tiledTexture->draw();
return askRedraw;
}
void PaintedSurface::setPaintingLayer(LayerAndroid* layer, const SkRegion& dirtyArea)
{
m_paintingLayer = layer;
if (m_tiledTexture)
m_tiledTexture->update(dirtyArea, layer->picture());
}
bool PaintedSurface::isReady()
{
if (m_tiledTexture)
return m_tiledTexture->isReady();
return false;
}
void PaintedSurface::swapTiles()
{
if (m_tiledTexture)
m_tiledTexture->swapTiles();
}
float PaintedSurface::opacity() {
if (m_drawingLayer)
return m_drawingLayer->drawOpacity();
return 1.0;
}
const TransformationMatrix* PaintedSurface::transform() {
// used exclusively for drawing, so only use m_drawingLayer
if (!m_drawingLayer)
return 0;
return m_drawingLayer->drawTransform();
}
void PaintedSurface::computeTexturesAmount(TexturesResult* result)
{
if (!m_tiledTexture)
return;
// for now, always done on drawinglayer
LayerAndroid* layer = m_drawingLayer;
if (!layer)
return;
IntRect unclippedArea = layer->unclippedArea();
IntRect clippedVisibleArea = layer->visibleArea();
// get two numbers here:
// - textures needed for a clipped area
// - textures needed for an un-clipped area
int nbTexturesUnclipped = m_tiledTexture->nbTextures(unclippedArea, m_scale);
int nbTexturesClipped = m_tiledTexture->nbTextures(clippedVisibleArea, m_scale);
// Set kFixedLayers level
if (layer->isFixed())
result->fixed += nbTexturesClipped;
// Set kScrollableAndFixedLayers level
if (layer->contentIsScrollable()
|| layer->isFixed())
result->scrollable += nbTexturesClipped;
// Set kClippedTextures level
result->clipped += nbTexturesClipped;
// Set kAllTextures level
if (layer->contentIsScrollable())
result->full += nbTexturesClipped;
else
result->full += nbTexturesUnclipped;
}
IntRect PaintedSurface::computeVisibleArea(LayerAndroid* layer) {
IntRect area;
if (!layer)
return area;
if (!layer->contentIsScrollable()
&& layer->state()->layersRenderingMode() == GLWebViewState::kAllTextures)
area = layer->unclippedArea();
else
area = layer->visibleArea();
return area;
}
bool PaintedSurface::owns(BaseTileTexture* texture)
{
if (m_tiledTexture)
return m_tiledTexture->owns(texture);
return false;
}
} // namespace WebCore
|
