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 #define LOG_TAG "TilesProfiler"
27 #define LOG_NDEBUG 1
28
29 #include "config.h"
30 #include "TilesProfiler.h"
31
32 #if USE(ACCELERATED_COMPOSITING)
33
34 #include "AndroidLog.h"
35 #include "Tile.h"
36 #include "TilesManager.h"
37 #include <wtf/CurrentTime.h>
38
39 // Hard limit on amount of frames (and thus memory) profiling can take
40 #define MAX_PROF_FRAMES 400
41 #define INVAL_CODE -2
42
43 namespace WebCore {
TilesProfiler()44 TilesProfiler::TilesProfiler()
45 : m_enabled(false)
46 {
47 }
48
start()49 void TilesProfiler::start()
50 {
51 m_enabled = true;
52 m_goodTiles = 0;
53 m_badTiles = 0;
54 m_records.clear();
55 m_time = currentTimeMS();
56 ALOGV("initializing tileprofiling");
57 }
58
stop()59 float TilesProfiler::stop()
60 {
61 m_enabled = false;
62 ALOGV("completed tile profiling, observed %d frames", m_records.size());
63 return (1.0 * m_goodTiles) / (m_goodTiles + m_badTiles);
64 }
65
clear()66 void TilesProfiler::clear()
67 {
68 ALOGV("clearing tile profiling of its %d frames", m_records.size());
69 m_records.clear();
70 }
71
nextFrame(int left,int top,int right,int bottom,float scale)72 void TilesProfiler::nextFrame(int left, int top, int right, int bottom, float scale)
73 {
74 if (!m_enabled || (m_records.size() > MAX_PROF_FRAMES))
75 return;
76
77 double currentTime = currentTimeMS();
78 double timeDelta = currentTime - m_time;
79 m_time = currentTime;
80
81 #ifdef DEBUG
82 if (m_records.size() != 0) {
83 ALOGD("completed tile profiling frame, observed %d tiles. %f ms since last",
84 m_records[0].size(), timeDelta);
85 }
86 #endif // DEBUG
87
88 m_records.append(WTF::Vector<TileProfileRecord>());
89
90 //first record designates viewport
91 m_records.last().append(TileProfileRecord(
92 left, top, right, bottom,
93 scale, true, (int)(timeDelta * 1000)));
94 }
95
nextTile(Tile * tile,float scale,bool inView)96 void TilesProfiler::nextTile(Tile* tile, float scale, bool inView)
97 {
98 if (!m_enabled || (m_records.size() > MAX_PROF_FRAMES) || (m_records.size() == 0))
99 return;
100
101 bool isReady = tile->isTileReady();
102 int left = tile->x() * TilesManager::tileWidth();
103 int top = tile->y() * TilesManager::tileWidth();
104 int right = left + TilesManager::tileWidth();
105 int bottom = top + TilesManager::tileWidth();
106
107 if (inView) {
108 if (isReady)
109 m_goodTiles++;
110 else
111 m_badTiles++;
112 }
113 m_records.last().append(TileProfileRecord(
114 left, top, right, bottom,
115 scale, isReady, (int)tile->drawCount()));
116 ALOGV("adding tile %d %d %d %d, scale %f", left, top, right, bottom, scale);
117 }
118
nextInval(const SkIRect & rect,float scale)119 void TilesProfiler::nextInval(const SkIRect& rect, float scale)
120 {
121 if (!m_enabled || (m_records.size() > MAX_PROF_FRAMES) || (m_records.size() == 0))
122 return;
123
124 m_records.last().append(TileProfileRecord(
125 rect.x(), rect.y(),
126 rect.right(), rect.bottom(), scale, false, INVAL_CODE));
127 ALOGV("adding inval region %d %d %d %d, scale %f", rect.x(), rect.y(),
128 rect.right(), rect.bottom(), scale);
129 }
130
131 } // namespace WebCore
132
133 #endif // USE(ACCELERATED_COMPOSITING)
134