2 * Copyright 2010, The Android Open Source Project
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27 #include "GLWebViewState.h"
29 #if USE(ACCELERATED_COMPOSITING)
31 #include "BaseLayerAndroid.h"
32 #include "ClassTracker.h"
34 #include "ImagesManager.h"
35 #include "LayerAndroid.h"
36 #include "ScrollableLayerAndroid.h"
38 #include "TilesManager.h"
39 #include "TilesTracker.h"
40 #include "TreeManager.h"
41 #include <wtf/CurrentTime.h>
45 #include <cutils/log.h>
46 #include <wtf/text/CString.h>
49 #define XLOGC(...) android_printLog(ANDROID_LOG_DEBUG, "GLWebViewState", __VA_ARGS__)
54 #define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "GLWebViewState", __VA_ARGS__)
63 #define FIRST_TILED_PAGE_ID 1
64 #define SECOND_TILED_PAGE_ID 2
66 #define FRAMERATE_CAP 0.01666 // We cap at 60 fps
68 // log warnings if scale goes outside this range
69 #define MIN_SCALE_WARNING 0.1
70 #define MAX_SCALE_WARNING 10
74 using namespace android;
76 GLWebViewState::GLWebViewState()
78 , m_currentPictureCounter(0)
80 , m_frameworkInval(0, 0, 0, 0)
81 , m_frameworkLayersInval(0, 0, 0, 0)
82 , m_isScrolling(false)
85 , m_expandedTileBoundsX(0)
86 , m_expandedTileBoundsY(0)
89 , m_layersRenderingMode(kAllTextures)
91 m_viewport.setEmpty();
92 m_futureViewportTileBounds.setEmpty();
93 m_viewportTileBounds.setEmpty();
94 m_preZoomBounds.setEmpty();
96 m_tiledPageA = new TiledPage(FIRST_TILED_PAGE_ID, this);
97 m_tiledPageB = new TiledPage(SECOND_TILED_PAGE_ID, this);
100 ClassTracker::instance()->increment("GLWebViewState");
104 m_totalTimeCounter = 0;
105 m_measurePerfs = false;
109 GLWebViewState::~GLWebViewState()
111 // Take care of the transfer queue such that Tex Gen thread will not stuck
112 TilesManager::instance()->unregisterGLWebViewState(this);
114 // We have to destroy the two tiled pages first as their destructor
115 // may depend on the existence of this GLWebViewState and some of its
116 // instance variables in order to complete.
117 // Explicitely, currently we need to have the m_paintingBaseLayer around
118 // in order to complete any pending paint operations (the tiled pages
119 // will remove any pending operations, and wait if one is underway).
123 ClassTracker::instance()->decrement("GLWebViewState");
128 void GLWebViewState::setBaseLayer(BaseLayerAndroid* layer, const SkRegion& inval,
129 bool showVisualIndicator, bool isPictureAfterFirstLayout)
131 if (!layer || isPictureAfterFirstLayout) {
132 // TODO: move this into TreeManager
133 m_tiledPageA->discardTextures();
134 m_tiledPageB->discardTextures();
137 XLOG("new base layer %p, (inval region empty %d) with child %p", layer, inval.isEmpty(), layer->getChild(0));
138 layer->setState(this);
139 layer->markAsDirty(inval); // TODO: set in webview.cpp
141 m_treeManager.updateWithTree(layer, isPictureAfterFirstLayout);
142 m_glExtras.setDrawExtra(0);
145 if (m_measurePerfs && !showVisualIndicator)
147 m_measurePerfs = showVisualIndicator;
150 TilesManager::instance()->setShowVisualIndicator(showVisualIndicator);
153 void GLWebViewState::scrolledLayer(ScrollableLayerAndroid*)
155 // TODO: only inval the area of the scrolled layer instead of
156 // doing a fullInval()
157 if (m_layersRenderingMode == kSingleSurfaceRendering)
161 void GLWebViewState::invalRegion(const SkRegion& region)
163 if (m_layersRenderingMode == kSingleSurfaceRendering) {
164 // TODO: do the union of both layers tree to compute
165 //the minimum inval instead of doing a fullInval()
169 SkRegion::Iterator iterator(region);
170 while (!iterator.done()) {
171 SkIRect r = iterator.rect();
172 IntRect ir(r.fLeft, r.fTop, r.width(), r.height());
178 void GLWebViewState::inval(const IntRect& rect)
180 m_currentPictureCounter++;
181 if (!rect.isEmpty()) {
182 // find which tiles fall within the invalRect and mark them as dirty
183 m_tiledPageA->invalidateRect(rect, m_currentPictureCounter);
184 m_tiledPageB->invalidateRect(rect, m_currentPictureCounter);
185 if (m_frameworkInval.isEmpty())
186 m_frameworkInval = rect;
188 m_frameworkInval.unite(rect);
189 XLOG("intermediate invalRect(%d, %d, %d, %d) after unite with rect %d %d %d %d", m_frameworkInval.x(),
190 m_frameworkInval.y(), m_frameworkInval.width(), m_frameworkInval.height(),
191 rect.x(), rect.y(), rect.width(), rect.height());
193 TilesManager::instance()->getProfiler()->nextInval(rect, zoomManager()->currentScale());
196 unsigned int GLWebViewState::paintBaseLayerContent(SkCanvas* canvas)
198 m_treeManager.drawCanvas(canvas, m_layersRenderingMode == kSingleSurfaceRendering);
199 return m_currentPictureCounter;
202 TiledPage* GLWebViewState::sibling(TiledPage* page)
204 return (page == m_tiledPageA) ? m_tiledPageB : m_tiledPageA;
207 TiledPage* GLWebViewState::frontPage()
209 android::Mutex::Autolock lock(m_tiledPageLock);
210 return m_usePageA ? m_tiledPageA : m_tiledPageB;
213 TiledPage* GLWebViewState::backPage()
215 android::Mutex::Autolock lock(m_tiledPageLock);
216 return m_usePageA ? m_tiledPageB : m_tiledPageA;
219 void GLWebViewState::swapPages()
221 android::Mutex::Autolock lock(m_tiledPageLock);
223 TiledPage* oldPage = m_usePageA ? m_tiledPageB : m_tiledPageA;
224 zoomManager()->swapPages();
225 oldPage->discardTextures();
228 int GLWebViewState::baseContentWidth()
230 return m_treeManager.baseContentWidth();
232 int GLWebViewState::baseContentHeight()
234 return m_treeManager.baseContentHeight();
237 void GLWebViewState::setViewport(SkRect& viewport, float scale)
239 if ((m_viewport == viewport) &&
240 (zoomManager()->futureScale() == scale))
243 m_goingDown = m_viewport.fTop - viewport.fTop <= 0;
244 m_goingLeft = m_viewport.fLeft - viewport.fLeft >= 0;
245 m_viewport = viewport;
247 XLOG("New VIEWPORT %.2f - %.2f %.2f - %.2f (w: %2.f h: %.2f scale: %.2f currentScale: %.2f futureScale: %.2f)",
248 m_viewport.fLeft, m_viewport.fTop, m_viewport.fRight, m_viewport.fBottom,
249 m_viewport.width(), m_viewport.height(), scale,
250 zoomManager()->currentScale(), zoomManager()->futureScale());
252 const float invTileContentWidth = scale / TilesManager::tileWidth();
253 const float invTileContentHeight = scale / TilesManager::tileHeight();
255 m_viewportTileBounds.set(
256 static_cast<int>(floorf(viewport.fLeft * invTileContentWidth)),
257 static_cast<int>(floorf(viewport.fTop * invTileContentHeight)),
258 static_cast<int>(ceilf(viewport.fRight * invTileContentWidth)),
259 static_cast<int>(ceilf(viewport.fBottom * invTileContentHeight)));
261 // allocate max possible number of tiles visible with this viewport
262 int viewMaxTileX = static_cast<int>(ceilf((viewport.width()-1) * invTileContentWidth)) + 1;
263 int viewMaxTileY = static_cast<int>(ceilf((viewport.height()-1) * invTileContentHeight)) + 1;
265 int maxTextureCount = (viewMaxTileX + m_expandedTileBoundsX * 2) *
266 (viewMaxTileY + m_expandedTileBoundsY * 2) * (m_highEndGfx ? 4 : 2);
268 TilesManager::instance()->setMaxTextureCount(maxTextureCount);
269 m_tiledPageA->updateBaseTileSize();
270 m_tiledPageB->updateBaseTileSize();
274 void GLWebViewState::dumpMeasures()
276 for (int i = 0; i < m_timeCounter; i++) {
277 XLOGC("%d delay: %d ms", m_totalTimeCounter + i,
278 static_cast<int>(m_delayTimes[i]*1000));
281 m_totalTimeCounter += m_timeCounter;
284 #endif // MEASURES_PERF
286 void GLWebViewState::resetFrameworkInval()
288 m_frameworkInval.setX(0);
289 m_frameworkInval.setY(0);
290 m_frameworkInval.setWidth(0);
291 m_frameworkInval.setHeight(0);
294 void GLWebViewState::addDirtyArea(const IntRect& rect)
299 IntRect inflatedRect = rect;
300 inflatedRect.inflate(8);
301 if (m_frameworkLayersInval.isEmpty())
302 m_frameworkLayersInval = inflatedRect;
304 m_frameworkLayersInval.unite(inflatedRect);
307 void GLWebViewState::resetLayersDirtyArea()
309 m_frameworkLayersInval.setX(0);
310 m_frameworkLayersInval.setY(0);
311 m_frameworkLayersInval.setWidth(0);
312 m_frameworkLayersInval.setHeight(0);
315 void GLWebViewState::drawBackground(Color& backgroundColor)
317 if (TilesManager::instance()->invertedScreen()) {
318 float color = 1.0 - ((((float) backgroundColor.red() / 255.0) +
319 ((float) backgroundColor.green() / 255.0) +
320 ((float) backgroundColor.blue() / 255.0)) / 3.0);
321 glClearColor(color, color, color, 1);
323 glClearColor((float)backgroundColor.red() / 255.0,
324 (float)backgroundColor.green() / 255.0,
325 (float)backgroundColor.blue() / 255.0, 1);
327 glClear(GL_COLOR_BUFFER_BIT);
330 double GLWebViewState::setupDrawing(IntRect& viewRect, SkRect& visibleRect,
331 IntRect& webViewRect, int titleBarHeight,
332 IntRect& screenClip, float scale)
334 int left = viewRect.x();
335 int top = viewRect.y();
336 int width = viewRect.width();
337 int height = viewRect.height();
338 glViewport(left, top, width, height);
340 ShaderProgram* shader = TilesManager::instance()->shader();
341 if (shader->program() == -1) {
342 XLOG("Reinit shader");
345 shader->setViewRect(viewRect);
346 shader->setViewport(visibleRect);
347 shader->setWebViewRect(webViewRect);
348 shader->setTitleBarHeight(titleBarHeight);
349 shader->setScreenClip(screenClip);
350 shader->resetBlending();
352 double currentTime = WTF::currentTime();
354 setViewport(visibleRect, scale);
355 m_zoomManager.processNewScale(currentTime, scale);
360 bool GLWebViewState::setLayersRenderingMode(TexturesResult& nbTexturesNeeded)
362 bool invalBase = false;
364 if (!nbTexturesNeeded.full)
365 TilesManager::instance()->setMaxLayerTextureCount(0);
367 TilesManager::instance()->setMaxLayerTextureCount((2*nbTexturesNeeded.full)+1);
369 int maxTextures = TilesManager::instance()->maxLayerTextureCount();
370 LayersRenderingMode layersRenderingMode = m_layersRenderingMode;
372 m_layersRenderingMode = kSingleSurfaceRendering;
373 if (nbTexturesNeeded.fixed < maxTextures)
374 m_layersRenderingMode = kFixedLayers;
375 if (nbTexturesNeeded.scrollable < maxTextures)
376 m_layersRenderingMode = kScrollableAndFixedLayers;
377 if (nbTexturesNeeded.clipped < maxTextures)
378 m_layersRenderingMode = kClippedTextures;
379 if (nbTexturesNeeded.full < maxTextures)
380 m_layersRenderingMode = kAllTextures;
382 if (!maxTextures && !nbTexturesNeeded.full)
383 m_layersRenderingMode = kAllTextures;
385 if (m_layersRenderingMode < layersRenderingMode
386 && m_layersRenderingMode != kAllTextures)
389 if (m_layersRenderingMode > layersRenderingMode
390 && m_layersRenderingMode != kClippedTextures)
394 if (m_layersRenderingMode != layersRenderingMode) {
395 char* mode[] = { "kAllTextures", "kClippedTextures",
396 "kScrollableAndFixedLayers", "kFixedLayers", "kSingleSurfaceRendering" };
397 XLOGC("Change from mode %s to %s -- We need textures: fixed: %d,"
398 " scrollable: %d, clipped: %d, full: %d, max textures: %d",
399 static_cast<char*>(mode[layersRenderingMode]),
400 static_cast<char*>(mode[m_layersRenderingMode]),
401 nbTexturesNeeded.fixed,
402 nbTexturesNeeded.scrollable,
403 nbTexturesNeeded.clipped,
404 nbTexturesNeeded.full, maxTextures);
408 // For now, anything below kClippedTextures is equivalent
409 // to kSingleSurfaceRendering
410 // TODO: implement the other rendering modes
411 if (m_layersRenderingMode > kClippedTextures)
412 m_layersRenderingMode = kSingleSurfaceRendering;
414 // update the base surface if needed
415 if (m_layersRenderingMode != layersRenderingMode
417 m_tiledPageA->discardTextures();
418 m_tiledPageB->discardTextures();
425 void GLWebViewState::fullInval()
427 // TODO -- use base layer's size.
428 IntRect ir(0, 0, 1E6, 1E6);
432 bool GLWebViewState::drawGL(IntRect& rect, SkRect& viewport, IntRect* invalRect,
433 IntRect& webViewRect, int titleBarHeight,
434 IntRect& clip, float scale,
435 bool* treesSwappedPtr, bool* newTreeHasAnimPtr)
438 TilesManager::instance()->getProfiler()->nextFrame(viewport.fLeft,
443 TilesManager::instance()->incDrawGLCount();
446 TilesManager::instance()->getTilesTracker()->clear();
449 float viewWidth = (viewport.fRight - viewport.fLeft) * TILE_PREFETCH_RATIO;
450 float viewHeight = (viewport.fBottom - viewport.fTop) * TILE_PREFETCH_RATIO;
451 bool useMinimalMemory = TilesManager::instance()->useMinimalMemory();
452 bool useHorzPrefetch = useMinimalMemory ? 0 : viewWidth < baseContentWidth();
453 bool useVertPrefetch = useMinimalMemory ? 0 : viewHeight < baseContentHeight();
454 m_expandedTileBoundsX = (useHorzPrefetch) ? TILE_PREFETCH_DISTANCE : 0;
455 m_expandedTileBoundsY = (useVertPrefetch) ? TILE_PREFETCH_DISTANCE : 0;
457 XLOG("drawGL, rect(%d, %d, %d, %d), viewport(%.2f, %.2f, %.2f, %.2f)",
458 rect.x(), rect.y(), rect.width(), rect.height(),
459 viewport.fLeft, viewport.fTop, viewport.fRight, viewport.fBottom);
461 resetLayersDirtyArea();
463 // when adding or removing layers, use the the paintingBaseLayer's tree so
464 // that content that moves to the base layer from a layer is synchronized
466 if (scale < MIN_SCALE_WARNING || scale > MAX_SCALE_WARNING)
467 XLOGC("WARNING, scale seems corrupted before update: %e", scale);
469 // Here before we draw, update the BaseTile which has updated content.
470 // Inside this function, just do GPU blits from the transfer queue into
471 // the BaseTiles' texture.
472 TilesManager::instance()->transferQueue()->updateDirtyBaseTiles();
474 // Upload any pending ImageTexture
475 // Return true if we still have some images to upload.
476 // TODO: upload as many textures as possible within a certain time limit
477 bool ret = ImagesManager::instance()->uploadTextures();
479 if (scale < MIN_SCALE_WARNING || scale > MAX_SCALE_WARNING)
480 XLOGC("WARNING, scale seems corrupted after update: %e", scale);
482 // gather the textures we can use
483 TilesManager::instance()->gatherLayerTextures();
485 double currentTime = setupDrawing(rect, viewport, webViewRect, titleBarHeight, clip, scale);
488 TexturesResult nbTexturesNeeded;
489 bool fastSwap = isScrolling() || m_layersRenderingMode == kSingleSurfaceRendering;
490 ret |= m_treeManager.drawGL(currentTime, rect, viewport,
492 treesSwappedPtr, newTreeHasAnimPtr,
495 resetFrameworkInval();
497 ret |= setLayersRenderingMode(nbTexturesNeeded);
499 FloatRect extrasclip(0, 0, rect.width(), rect.height());
500 TilesManager::instance()->shader()->clip(extrasclip);
502 m_glExtras.drawGL(webViewRect, viewport, titleBarHeight);
504 glBindBuffer(GL_ARRAY_BUFFER, 0);
506 // Clean up GL textures for video layer.
507 TilesManager::instance()->videoLayerManager()->deleteUnusedTextures();
508 ret |= TilesManager::instance()->invertedScreenSwitch();
511 // ret==true && empty inval region means we've inval'd everything,
512 // but don't have new content. Keep redrawing full view (0,0,0,0)
513 // until tile generation catches up and we swap pages.
514 bool fullScreenInval = m_frameworkInval.isEmpty();
516 if (TilesManager::instance()->invertedScreenSwitch()) {
517 fullScreenInval = true;
518 TilesManager::instance()->setInvertedScreenSwitch(false);
521 if (!fullScreenInval) {
522 FloatRect frameworkInval = TilesManager::instance()->shader()->rectInInvScreenCoord(
524 // Inflate the invalidate rect to avoid precision lost.
525 frameworkInval.inflate(1);
526 IntRect inval(frameworkInval.x(), frameworkInval.y(),
527 frameworkInval.width(), frameworkInval.height());
529 inval.unite(m_frameworkLayersInval);
531 invalRect->setX(inval.x());
532 invalRect->setY(inval.y());
533 invalRect->setWidth(inval.width());
534 invalRect->setHeight(inval.height());
536 XLOG("invalRect(%d, %d, %d, %d)", inval.x(),
537 inval.y(), inval.width(), inval.height());
539 if (!invalRect->intersects(rect)) {
540 // invalidate is occurring offscreen, do full inval to guarantee redraw
541 fullScreenInval = true;
545 if (fullScreenInval) {
548 invalRect->setWidth(0);
549 invalRect->setHeight(0);
552 resetFrameworkInval();
556 if (m_measurePerfs) {
557 m_delayTimes[m_timeCounter++] = delta;
558 if (m_timeCounter >= MAX_MEASURES_PERF)
564 TilesManager::instance()->getTilesTracker()->showTrackTextures();
565 ImagesManager::instance()->showImages();
571 } // namespace WebCore
573 #endif // USE(ACCELERATED_COMPOSITING)