2 * Copyright 2011, The Android Open Source Project
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27 #include "TiledTexture.h"
29 #include "TilesManager.h"
30 #include "TilesTracker.h"
32 #include "PaintedSurface.h"
33 #include "PaintTileOperation.h"
38 #include <cutils/log.h>
39 #include <wtf/CurrentTime.h>
40 #include <wtf/text/CString.h>
43 #define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "TiledTexture", __VA_ARGS__)
54 void TiledTexture::prepare(GLWebViewState* state, bool repaint)
59 // first, how many tiles do we need
60 IntRect visibleArea = m_surface->visibleArea();
61 IntRect area(visibleArea.x() * m_surface->scale(),
62 visibleArea.y() * m_surface->scale(),
63 visibleArea.width() * m_surface->scale(),
64 visibleArea.height() * m_surface->scale());
66 for (unsigned int i = 0; i < m_tiles.size(); i++) {
67 BaseTile* tile = m_tiles[i];
68 tile->setUsedLevel(-1);
71 if (area.width() == 0 && area.height() == 0) {
77 int tileWidth = TilesManager::instance()->layerTileWidth();
78 int tileHeight = TilesManager::instance()->layerTileHeight();
80 m_area.setX(area.x() / tileWidth);
81 m_area.setY(area.y() / tileHeight);
82 m_area.setWidth(area.width() / tileWidth);
83 m_area.setHeight(area.height() / tileHeight);
85 if (m_area.width() * tileWidth < area.width())
86 m_area.setWidth(m_area.width() + 1);
87 if (m_area.height() * tileHeight < area.height())
88 m_area.setHeight(m_area.height() + 1);
90 XLOG("for TiledTexture %x, we have a visible area of %d x %d, corresponding to %d x %d tiles",
91 this, visibleArea.width(), visibleArea.height(),
92 m_area.width(), m_area.height());
94 bool goingDown = m_prevTileY < m_area.y();
95 m_prevTileY = m_area.y();
97 if (m_surface->scale() != m_prevScale)
98 TilesManager::instance()->removeOperationsForFilter(new ScaleFilter(m_surface->scale()));
100 m_prevScale = m_surface->scale();
102 for (int i = 0; i < m_area.width(); i++) {
104 for (int j = 0; j < m_area.height(); j++) {
105 prepareTile(repaint, m_area.x() + i, m_area.y() + j);
108 for (int j = m_area.height() - 1; j >= 0; j--) {
109 prepareTile(repaint, m_area.x() + i, m_area.y() + j);
115 void TiledTexture::prepareTile(bool repaint, int x, int y)
117 BaseTile* tile = getTile(x, y);
119 tile = new BaseTile(true);
120 m_tiles.append(tile);
122 tile->reserveTexture();
123 if (!tile->texture())
126 tile->setContents(this, x, y, m_surface->scale());
127 tile->setUsedLevel(0);
129 bool schedule = false;
132 if (!tile->isTileReady())
134 if (repaint || tile->isDirty())
137 if (schedule && !tile->isRepaintPending()) {
138 PaintTileOperation *operation = new PaintTileOperation(tile);
139 TilesManager::instance()->scheduleOperation(operation);
143 BaseTile* TiledTexture::getTile(int x, int y)
145 for (unsigned int i = 0; i <m_tiles.size(); i++) {
146 BaseTile* tile = m_tiles[i];
147 if (tile->x() == x && tile->y() == y)
153 bool TiledTexture::draw()
156 TilesManager::instance()->getTilesTracker()->trackLayer();
159 bool askRedraw = false;
160 if (m_area.width() == 0 || m_area.height() == 0)
164 TilesManager::instance()->getTilesTracker()->trackVisibleLayer();
167 float m_invScale = 1 / m_surface->scale();
168 const float tileWidth = TilesManager::layerTileWidth() * m_invScale;
169 const float tileHeight = TilesManager::layerTileHeight() * m_invScale;
170 XLOG("draw tile %x, tiles %d", this, m_tiles.size());
171 for (unsigned int i = 0; i <m_tiles.size(); i++) {
172 BaseTile* tile = m_tiles[i];
173 if (tile->x() >= m_area.x()
174 && tile->x() < m_area.x() + m_area.width()
175 && tile->y() >= m_area.y()
176 && tile->y() < m_area.y() + m_area.height()) {
178 rect.fLeft = tile->x() * tileWidth;
179 rect.fTop = tile->y() * tileHeight;
180 rect.fRight = rect.fLeft + tileWidth;
181 rect.fBottom = rect.fTop + tileHeight;
182 XLOG(" - [%d], { painter %x vs %x }, tile %x %d,%d at scale %.2f [ready: %d]", i, this, tile->painter(), tile, tile->x(), tile->y(), tile->scale(), tile->isTileReady());
183 askRedraw |= !tile->isTileReady();
184 tile->draw(m_surface->opacity(), rect, m_surface->scale());
186 TilesManager::instance()->getTilesTracker()->track(tile->isTileReady(), tile->texture());
193 bool TiledTexture::paint(BaseTile* tile, SkCanvas* canvas, unsigned int* pictureUsed)
198 XLOG("painting scheduled tile(%x : %d, %d, %.2f, %x) for %x",
199 tile, tile->x(), tile->y(), tile->scale(), tile->painter(), this);
200 return m_surface->paint(tile, canvas, pictureUsed);
203 void TiledTexture::paintExtra(SkCanvas* canvas)
205 m_surface->paintExtra(canvas);
208 const TransformationMatrix* TiledTexture::transform()
210 return m_surface->transform();
213 void TiledTexture::removeTiles()
215 TilesManager::instance()->removeOperationsForPainter(this, true);
216 for (unsigned int i = 0; i < m_tiles.size(); i++) {
221 bool TiledTexture::owns(BaseTileTexture* texture)
223 for (unsigned int i = 0; i < m_tiles.size(); i++) {
224 BaseTile* tile = m_tiles[i];
225 if (tile->texture() == texture)
231 } // namespace WebCore