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Side by Side Diff: Source/core/platform/graphics/GraphicsLayer.cpp

Issue 99103006: Moving GraphicsContext and dependencies from core to platform. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Final patch - fixes Android Created 7 years ago
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1 /*
2 * Copyright (C) 2009 Apple Inc. All rights reserved.
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 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. 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 APPLE INC. ``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 APPLE COMPUTER, INC. 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 #include "config.h"
27
28 #include "core/platform/graphics/GraphicsLayer.h"
29
30 #include "SkImageFilter.h"
31 #include "SkMatrix44.h"
32 #include "core/platform/ScrollableArea.h"
33 #include "core/platform/graphics/GraphicsContext.h"
34 #include "core/platform/graphics/GraphicsLayerFactory.h"
35 #include "core/platform/graphics/filters/SkiaImageFilterBuilder.h"
36 #include "core/platform/graphics/skia/NativeImageSkia.h"
37 #include "platform/geometry/FloatRect.h"
38 #include "platform/geometry/LayoutRect.h"
39 #include "platform/text/TextStream.h"
40 #include "wtf/CurrentTime.h"
41 #include "wtf/HashMap.h"
42 #include "wtf/HashSet.h"
43 #include "wtf/text/WTFString.h"
44
45 #include "public/platform/Platform.h"
46 #include "public/platform/WebAnimation.h"
47 #include "public/platform/WebCompositorSupport.h"
48 #include "public/platform/WebFilterOperations.h"
49 #include "public/platform/WebFloatPoint.h"
50 #include "public/platform/WebFloatRect.h"
51 #include "public/platform/WebGraphicsLayerDebugInfo.h"
52 #include "public/platform/WebLayer.h"
53 #include "public/platform/WebPoint.h"
54 #include "public/platform/WebSize.h"
55
56 #ifndef NDEBUG
57 #include <stdio.h>
58 #endif
59
60 using blink::Platform;
61 using blink::WebAnimation;
62 using blink::WebFilterOperations;
63 using blink::WebLayer;
64 using blink::WebPoint;
65
66 namespace WebCore {
67
68 typedef HashMap<const GraphicsLayer*, Vector<FloatRect> > RepaintMap;
69 static RepaintMap& repaintRectMap()
70 {
71 DEFINE_STATIC_LOCAL(RepaintMap, map, ());
72 return map;
73 }
74
75 PassOwnPtr<GraphicsLayer> GraphicsLayer::create(GraphicsLayerFactory* factory, G raphicsLayerClient* client)
76 {
77 return factory->createGraphicsLayer(client);
78 }
79
80 GraphicsLayer::GraphicsLayer(GraphicsLayerClient* client)
81 : m_client(client)
82 , m_anchorPoint(0.5f, 0.5f, 0)
83 , m_opacity(1)
84 , m_zPosition(0)
85 , m_blendMode(blink::WebBlendModeNormal)
86 , m_contentsOpaque(false)
87 , m_preserves3D(false)
88 , m_backfaceVisibility(true)
89 , m_masksToBounds(false)
90 , m_drawsContent(false)
91 , m_contentsVisible(true)
92 , m_isRootForIsolatedGroup(false)
93 , m_hasScrollParent(false)
94 , m_hasClipParent(false)
95 , m_paintingPhase(GraphicsLayerPaintAllWithOverflowClip)
96 , m_contentsOrientation(CompositingCoordinatesTopDown)
97 , m_parent(0)
98 , m_maskLayer(0)
99 , m_contentsClippingMaskLayer(0)
100 , m_replicaLayer(0)
101 , m_replicatedLayer(0)
102 , m_paintCount(0)
103 , m_contentsLayer(0)
104 , m_contentsLayerId(0)
105 , m_scrollableArea(0)
106 , m_compositingReasons(blink::CompositingReasonUnknown)
107 , m_debugInfo(0)
108 {
109 #ifndef NDEBUG
110 if (m_client)
111 m_client->verifyNotPainting();
112 #endif
113
114 m_opaqueRectTrackingContentLayerDelegate = adoptPtr(new OpaqueRectTrackingCo ntentLayerDelegate(this));
115 m_layer = adoptPtr(Platform::current()->compositorSupport()->createContentLa yer(m_opaqueRectTrackingContentLayerDelegate.get()));
116 m_layer->layer()->setDrawsContent(m_drawsContent && m_contentsVisible);
117 m_layer->layer()->setWebLayerClient(this);
118 m_layer->setAutomaticallyComputeRasterScale(true);
119 }
120
121 GraphicsLayer::~GraphicsLayer()
122 {
123 for (size_t i = 0; i < m_linkHighlights.size(); ++i)
124 m_linkHighlights[i]->clearCurrentGraphicsLayer();
125 m_linkHighlights.clear();
126
127 #ifndef NDEBUG
128 if (m_client)
129 m_client->verifyNotPainting();
130 #endif
131
132 if (m_replicaLayer)
133 m_replicaLayer->setReplicatedLayer(0);
134
135 if (m_replicatedLayer)
136 m_replicatedLayer->setReplicatedByLayer(0);
137
138 removeAllChildren();
139 removeFromParent();
140
141 resetTrackedRepaints();
142 ASSERT(!m_parent);
143 }
144
145 void GraphicsLayer::setParent(GraphicsLayer* layer)
146 {
147 ASSERT(!layer || !layer->hasAncestor(this));
148 m_parent = layer;
149 }
150
151 bool GraphicsLayer::hasAncestor(GraphicsLayer* ancestor) const
152 {
153 for (GraphicsLayer* curr = parent(); curr; curr = curr->parent()) {
154 if (curr == ancestor)
155 return true;
156 }
157
158 return false;
159 }
160
161 bool GraphicsLayer::setChildren(const Vector<GraphicsLayer*>& newChildren)
162 {
163 // If the contents of the arrays are the same, nothing to do.
164 if (newChildren == m_children)
165 return false;
166
167 removeAllChildren();
168
169 size_t listSize = newChildren.size();
170 for (size_t i = 0; i < listSize; ++i)
171 addChildInternal(newChildren[i]);
172
173 updateChildList();
174
175 return true;
176 }
177
178 void GraphicsLayer::addChildInternal(GraphicsLayer* childLayer)
179 {
180 ASSERT(childLayer != this);
181
182 if (childLayer->parent())
183 childLayer->removeFromParent();
184
185 childLayer->setParent(this);
186 m_children.append(childLayer);
187
188 // Don't call updateChildList here, this function is used in cases where it
189 // should not be called until all children are processed.
190 }
191
192 void GraphicsLayer::addChild(GraphicsLayer* childLayer)
193 {
194 addChildInternal(childLayer);
195 updateChildList();
196 }
197
198 void GraphicsLayer::addChildAtIndex(GraphicsLayer* childLayer, int index)
199 {
200 ASSERT(childLayer != this);
201
202 if (childLayer->parent())
203 childLayer->removeFromParent();
204
205 childLayer->setParent(this);
206 m_children.insert(index, childLayer);
207
208 updateChildList();
209 }
210
211 void GraphicsLayer::addChildBelow(GraphicsLayer* childLayer, GraphicsLayer* sibl ing)
212 {
213 ASSERT(childLayer != this);
214 childLayer->removeFromParent();
215
216 bool found = false;
217 for (unsigned i = 0; i < m_children.size(); i++) {
218 if (sibling == m_children[i]) {
219 m_children.insert(i, childLayer);
220 found = true;
221 break;
222 }
223 }
224
225 childLayer->setParent(this);
226
227 if (!found)
228 m_children.append(childLayer);
229
230 updateChildList();
231 }
232
233 void GraphicsLayer::addChildAbove(GraphicsLayer* childLayer, GraphicsLayer* sibl ing)
234 {
235 childLayer->removeFromParent();
236 ASSERT(childLayer != this);
237
238 bool found = false;
239 for (unsigned i = 0; i < m_children.size(); i++) {
240 if (sibling == m_children[i]) {
241 m_children.insert(i+1, childLayer);
242 found = true;
243 break;
244 }
245 }
246
247 childLayer->setParent(this);
248
249 if (!found)
250 m_children.append(childLayer);
251
252 updateChildList();
253 }
254
255 bool GraphicsLayer::replaceChild(GraphicsLayer* oldChild, GraphicsLayer* newChil d)
256 {
257 ASSERT(!newChild->parent());
258 bool found = false;
259 for (unsigned i = 0; i < m_children.size(); i++) {
260 if (oldChild == m_children[i]) {
261 m_children[i] = newChild;
262 found = true;
263 break;
264 }
265 }
266
267 if (found) {
268 oldChild->setParent(0);
269
270 newChild->removeFromParent();
271 newChild->setParent(this);
272
273 updateChildList();
274 return true;
275 }
276
277 return false;
278 }
279
280 void GraphicsLayer::removeAllChildren()
281 {
282 while (m_children.size()) {
283 GraphicsLayer* curLayer = m_children[0];
284 ASSERT(curLayer->parent());
285 curLayer->removeFromParent();
286 }
287 }
288
289 void GraphicsLayer::removeFromParent()
290 {
291 if (m_parent) {
292 unsigned i;
293 for (i = 0; i < m_parent->m_children.size(); i++) {
294 if (this == m_parent->m_children[i]) {
295 m_parent->m_children.remove(i);
296 break;
297 }
298 }
299
300 setParent(0);
301 }
302
303 platformLayer()->removeFromParent();
304 }
305
306 void GraphicsLayer::setReplicatedByLayer(GraphicsLayer* layer)
307 {
308 // FIXME: this could probably be a full early exit.
309 if (m_replicaLayer != layer) {
310 if (m_replicaLayer)
311 m_replicaLayer->setReplicatedLayer(0);
312
313 if (layer)
314 layer->setReplicatedLayer(this);
315
316 m_replicaLayer = layer;
317 }
318
319 WebLayer* webReplicaLayer = layer ? layer->platformLayer() : 0;
320 platformLayer()->setReplicaLayer(webReplicaLayer);
321 }
322
323 void GraphicsLayer::setOffsetFromRenderer(const IntSize& offset, ShouldSetNeedsD isplay shouldSetNeedsDisplay)
324 {
325 if (offset == m_offsetFromRenderer)
326 return;
327
328 m_offsetFromRenderer = offset;
329
330 // If the compositing layer offset changes, we need to repaint.
331 if (shouldSetNeedsDisplay == SetNeedsDisplay)
332 setNeedsDisplay();
333 }
334
335 void GraphicsLayer::paintGraphicsLayerContents(GraphicsContext& context, const I ntRect& clip)
336 {
337 if (!m_client)
338 return;
339 incrementPaintCount();
340 m_client->paintContents(this, context, m_paintingPhase, clip);
341 }
342
343 void GraphicsLayer::setZPosition(float position)
344 {
345 m_zPosition = position;
346 }
347
348 float GraphicsLayer::accumulatedOpacity() const
349 {
350 if (!preserves3D())
351 return 1;
352
353 return m_opacity * (parent() ? parent()->accumulatedOpacity() : 1);
354 }
355
356 void GraphicsLayer::distributeOpacity(float accumulatedOpacity)
357 {
358 // If this is a transform layer we need to distribute our opacity to all our children
359
360 // Incoming accumulatedOpacity is the contribution from our parent(s). We mu tiply this by our own
361 // opacity to get the total contribution
362 accumulatedOpacity *= m_opacity;
363
364 if (preserves3D()) {
365 size_t numChildren = children().size();
366 for (size_t i = 0; i < numChildren; ++i)
367 children()[i]->distributeOpacity(accumulatedOpacity);
368 }
369 }
370
371 void GraphicsLayer::updateChildList()
372 {
373 WebLayer* childHost = m_layer->layer();
374 childHost->removeAllChildren();
375
376 clearContentsLayerIfUnregistered();
377
378 if (m_contentsLayer) {
379 // FIXME: add the contents layer in the correct order with negative z-or der children.
380 // This does not cause visible rendering issues because currently conten ts layers are only used
381 // for replaced elements that don't have children.
382 childHost->addChild(m_contentsLayer);
383 }
384
385 const Vector<GraphicsLayer*>& childLayers = children();
386 size_t numChildren = childLayers.size();
387 for (size_t i = 0; i < numChildren; ++i) {
388 GraphicsLayer* curChild = childLayers[i];
389
390 childHost->addChild(curChild->platformLayer());
391 }
392
393 for (size_t i = 0; i < m_linkHighlights.size(); ++i)
394 childHost->addChild(m_linkHighlights[i]->layer());
395 }
396
397 void GraphicsLayer::updateLayerIsDrawable()
398 {
399 // For the rest of the accelerated compositor code, there is no reason to ma ke a
400 // distinction between drawsContent and contentsVisible. So, for m_layer->la yer(), these two
401 // flags are combined here. m_contentsLayer shouldn't receive the drawsConte nt flag
402 // so it is only given contentsVisible.
403
404 m_layer->layer()->setDrawsContent(m_drawsContent && m_contentsVisible);
405 if (WebLayer* contentsLayer = contentsLayerIfRegistered())
406 contentsLayer->setDrawsContent(m_contentsVisible);
407
408 if (m_drawsContent) {
409 m_layer->layer()->invalidate();
410 for (size_t i = 0; i < m_linkHighlights.size(); ++i)
411 m_linkHighlights[i]->invalidate();
412 }
413 }
414
415 void GraphicsLayer::updateContentsRect()
416 {
417 WebLayer* contentsLayer = contentsLayerIfRegistered();
418 if (!contentsLayer)
419 return;
420
421 contentsLayer->setPosition(FloatPoint(m_contentsRect.x(), m_contentsRect.y() ));
422 contentsLayer->setBounds(IntSize(m_contentsRect.width(), m_contentsRect.heig ht()));
423
424 if (m_contentsClippingMaskLayer) {
425 if (m_contentsClippingMaskLayer->size() != m_contentsRect.size()) {
426 m_contentsClippingMaskLayer->setSize(m_contentsRect.size());
427 m_contentsClippingMaskLayer->setNeedsDisplay();
428 }
429 m_contentsClippingMaskLayer->setPosition(FloatPoint());
430 m_contentsClippingMaskLayer->setOffsetFromRenderer(offsetFromRenderer() + IntSize(m_contentsRect.location().x(), m_contentsRect.location().y()));
431 }
432 }
433
434 static HashSet<int>* s_registeredLayerSet;
435
436 void GraphicsLayer::registerContentsLayer(WebLayer* layer)
437 {
438 if (!s_registeredLayerSet)
439 s_registeredLayerSet = new HashSet<int>;
440 if (s_registeredLayerSet->contains(layer->id()))
441 CRASH();
442 s_registeredLayerSet->add(layer->id());
443 }
444
445 void GraphicsLayer::unregisterContentsLayer(WebLayer* layer)
446 {
447 ASSERT(s_registeredLayerSet);
448 if (!s_registeredLayerSet->contains(layer->id()))
449 CRASH();
450 s_registeredLayerSet->remove(layer->id());
451 }
452
453 void GraphicsLayer::setContentsTo(WebLayer* layer)
454 {
455 bool childrenChanged = false;
456 if (layer) {
457 ASSERT(s_registeredLayerSet);
458 if (!s_registeredLayerSet->contains(layer->id()))
459 CRASH();
460 if (m_contentsLayerId != layer->id()) {
461 setupContentsLayer(layer);
462 childrenChanged = true;
463 }
464 updateContentsRect();
465 } else {
466 if (m_contentsLayer) {
467 childrenChanged = true;
468
469 // The old contents layer will be removed via updateChildList.
470 m_contentsLayer = 0;
471 m_contentsLayerId = 0;
472 }
473 }
474
475 if (childrenChanged)
476 updateChildList();
477 }
478
479 void GraphicsLayer::setupContentsLayer(WebLayer* contentsLayer)
480 {
481 ASSERT(contentsLayer);
482 m_contentsLayer = contentsLayer;
483 m_contentsLayerId = m_contentsLayer->id();
484
485 m_contentsLayer->setWebLayerClient(this);
486 m_contentsLayer->setAnchorPoint(FloatPoint(0, 0));
487 m_contentsLayer->setUseParentBackfaceVisibility(true);
488
489 // It is necessary to call setDrawsContent as soon as we receive the new con tentsLayer, for
490 // the correctness of early exit conditions in setDrawsContent() and setCont entsVisible().
491 m_contentsLayer->setDrawsContent(m_contentsVisible);
492
493 // Insert the content layer first. Video elements require this, because they have
494 // shadow content that must display in front of the video.
495 m_layer->layer()->insertChild(m_contentsLayer, 0);
496 WebLayer* borderWebLayer = m_contentsClippingMaskLayer ? m_contentsClippingM askLayer->platformLayer() : 0;
497 m_contentsLayer->setMaskLayer(borderWebLayer);
498 }
499
500 void GraphicsLayer::clearContentsLayerIfUnregistered()
501 {
502 if (!m_contentsLayerId || s_registeredLayerSet->contains(m_contentsLayerId))
503 return;
504
505 m_contentsLayer = 0;
506 m_contentsLayerId = 0;
507 }
508
509 void GraphicsLayer::setDebugInfo(blink::WebGraphicsLayerDebugInfo* debugInfo)
510 {
511 if (m_debugInfo)
512 delete m_debugInfo;
513 m_debugInfo = debugInfo;
514 }
515
516 blink::WebGraphicsLayerDebugInfo* GraphicsLayer::takeDebugInfo()
517 {
518 blink::WebGraphicsLayerDebugInfo* tempDebugInfo = m_debugInfo;
519 m_debugInfo = 0;
520 return tempDebugInfo;
521 }
522
523 WebLayer* GraphicsLayer::contentsLayerIfRegistered()
524 {
525 clearContentsLayerIfUnregistered();
526 return m_contentsLayer;
527 }
528
529 double GraphicsLayer::backingStoreMemoryEstimate() const
530 {
531 if (!drawsContent())
532 return 0;
533
534 // Effects of page and device scale are ignored; subclasses should override to take these into account.
535 return static_cast<double>(4 * size().width()) * size().height();
536 }
537
538 void GraphicsLayer::resetTrackedRepaints()
539 {
540 repaintRectMap().remove(this);
541 }
542
543 void GraphicsLayer::addRepaintRect(const FloatRect& repaintRect)
544 {
545 if (m_client->isTrackingRepaints()) {
546 FloatRect largestRepaintRect(FloatPoint(), m_size);
547 largestRepaintRect.intersect(repaintRect);
548 RepaintMap::iterator repaintIt = repaintRectMap().find(this);
549 if (repaintIt == repaintRectMap().end()) {
550 Vector<FloatRect> repaintRects;
551 repaintRects.append(largestRepaintRect);
552 repaintRectMap().set(this, repaintRects);
553 } else {
554 Vector<FloatRect>& repaintRects = repaintIt->value;
555 repaintRects.append(largestRepaintRect);
556 }
557 }
558 }
559
560 void GraphicsLayer::collectTrackedRepaintRects(Vector<FloatRect>& rects) const
561 {
562 if (!m_client->isTrackingRepaints())
563 return;
564
565 RepaintMap::iterator repaintIt = repaintRectMap().find(this);
566 if (repaintIt != repaintRectMap().end())
567 rects.append(repaintIt->value);
568 }
569
570 void GraphicsLayer::dumpLayer(TextStream& ts, int indent, LayerTreeFlags flags) const
571 {
572 writeIndent(ts, indent);
573 ts << "(" << "GraphicsLayer";
574
575 if (flags & LayerTreeIncludesDebugInfo) {
576 ts << " " << static_cast<void*>(const_cast<GraphicsLayer*>(this));
577 ts << " \"" << m_client->debugName(this) << "\"";
578 }
579
580 ts << "\n";
581 dumpProperties(ts, indent, flags);
582 writeIndent(ts, indent);
583 ts << ")\n";
584 }
585
586 void GraphicsLayer::dumpProperties(TextStream& ts, int indent, LayerTreeFlags fl ags) const
587 {
588 if (m_position != FloatPoint()) {
589 writeIndent(ts, indent + 1);
590 ts << "(position " << m_position.x() << " " << m_position.y() << ")\n";
591 }
592
593 if (m_boundsOrigin != FloatPoint()) {
594 writeIndent(ts, indent + 1);
595 ts << "(bounds origin " << m_boundsOrigin.x() << " " << m_boundsOrigin.y () << ")\n";
596 }
597
598 if (m_anchorPoint != FloatPoint3D(0.5f, 0.5f, 0)) {
599 writeIndent(ts, indent + 1);
600 ts << "(anchor " << m_anchorPoint.x() << " " << m_anchorPoint.y() << ")\ n";
601 }
602
603 if (m_size != IntSize()) {
604 writeIndent(ts, indent + 1);
605 ts << "(bounds " << m_size.width() << " " << m_size.height() << ")\n";
606 }
607
608 if (m_opacity != 1) {
609 writeIndent(ts, indent + 1);
610 ts << "(opacity " << m_opacity << ")\n";
611 }
612
613 if (m_blendMode != blink::WebBlendModeNormal) {
614 writeIndent(ts, indent + 1);
615 ts << "(blendMode " << compositeOperatorName(CompositeSourceOver, m_blen dMode) << ")\n";
616 }
617
618 if (m_isRootForIsolatedGroup) {
619 writeIndent(ts, indent + 1);
620 ts << "(isolate " << m_isRootForIsolatedGroup << ")\n";
621 }
622
623 if (m_contentsOpaque) {
624 writeIndent(ts, indent + 1);
625 ts << "(contentsOpaque " << m_contentsOpaque << ")\n";
626 }
627
628 if (m_preserves3D) {
629 writeIndent(ts, indent + 1);
630 ts << "(preserves3D " << m_preserves3D << ")\n";
631 }
632
633 if (m_drawsContent) {
634 writeIndent(ts, indent + 1);
635 ts << "(drawsContent " << m_drawsContent << ")\n";
636 }
637
638 if (!m_contentsVisible) {
639 writeIndent(ts, indent + 1);
640 ts << "(contentsVisible " << m_contentsVisible << ")\n";
641 }
642
643 if (!m_backfaceVisibility) {
644 writeIndent(ts, indent + 1);
645 ts << "(backfaceVisibility " << (m_backfaceVisibility ? "visible" : "hid den") << ")\n";
646 }
647
648 if (flags & LayerTreeIncludesDebugInfo) {
649 writeIndent(ts, indent + 1);
650 ts << "(";
651 if (m_client)
652 ts << "client " << static_cast<void*>(m_client);
653 else
654 ts << "no client";
655 ts << ")\n";
656 }
657
658 if (m_backgroundColor.isValid() && m_backgroundColor != Color::transparent) {
659 writeIndent(ts, indent + 1);
660 ts << "(backgroundColor " << m_backgroundColor.nameForRenderTreeAsText() << ")\n";
661 }
662
663 if (!m_transform.isIdentity()) {
664 writeIndent(ts, indent + 1);
665 ts << "(transform ";
666 ts << "[" << m_transform.m11() << " " << m_transform.m12() << " " << m_t ransform.m13() << " " << m_transform.m14() << "] ";
667 ts << "[" << m_transform.m21() << " " << m_transform.m22() << " " << m_t ransform.m23() << " " << m_transform.m24() << "] ";
668 ts << "[" << m_transform.m31() << " " << m_transform.m32() << " " << m_t ransform.m33() << " " << m_transform.m34() << "] ";
669 ts << "[" << m_transform.m41() << " " << m_transform.m42() << " " << m_t ransform.m43() << " " << m_transform.m44() << "])\n";
670 }
671
672 // Avoid dumping the sublayer transform on the root layer, because it's used for geometry flipping, whose behavior
673 // differs between platforms.
674 if (parent() && !m_childrenTransform.isIdentity()) {
675 writeIndent(ts, indent + 1);
676 ts << "(childrenTransform ";
677 ts << "[" << m_childrenTransform.m11() << " " << m_childrenTransform.m12 () << " " << m_childrenTransform.m13() << " " << m_childrenTransform.m14() << "] ";
678 ts << "[" << m_childrenTransform.m21() << " " << m_childrenTransform.m22 () << " " << m_childrenTransform.m23() << " " << m_childrenTransform.m24() << "] ";
679 ts << "[" << m_childrenTransform.m31() << " " << m_childrenTransform.m32 () << " " << m_childrenTransform.m33() << " " << m_childrenTransform.m34() << "] ";
680 ts << "[" << m_childrenTransform.m41() << " " << m_childrenTransform.m42 () << " " << m_childrenTransform.m43() << " " << m_childrenTransform.m44() << "] )\n";
681 }
682
683 if (m_replicaLayer) {
684 writeIndent(ts, indent + 1);
685 ts << "(replica layer";
686 if (flags & LayerTreeIncludesDebugInfo)
687 ts << " " << m_replicaLayer;
688 ts << ")\n";
689 m_replicaLayer->dumpLayer(ts, indent + 2, flags);
690 }
691
692 if (m_replicatedLayer) {
693 writeIndent(ts, indent + 1);
694 ts << "(replicated layer";
695 if (flags & LayerTreeIncludesDebugInfo)
696 ts << " " << m_replicatedLayer;
697 ts << ")\n";
698 }
699
700 if ((flags & LayerTreeIncludesRepaintRects) && repaintRectMap().contains(thi s) && !repaintRectMap().get(this).isEmpty()) {
701 writeIndent(ts, indent + 1);
702 ts << "(repaint rects\n";
703 for (size_t i = 0; i < repaintRectMap().get(this).size(); ++i) {
704 if (repaintRectMap().get(this)[i].isEmpty())
705 continue;
706 writeIndent(ts, indent + 2);
707 ts << "(rect ";
708 ts << repaintRectMap().get(this)[i].x() << " ";
709 ts << repaintRectMap().get(this)[i].y() << " ";
710 ts << repaintRectMap().get(this)[i].width() << " ";
711 ts << repaintRectMap().get(this)[i].height();
712 ts << ")\n";
713 }
714 writeIndent(ts, indent + 1);
715 ts << ")\n";
716 }
717
718 if ((flags & LayerTreeIncludesPaintingPhases) && paintingPhase()) {
719 writeIndent(ts, indent + 1);
720 ts << "(paintingPhases\n";
721 if (paintingPhase() & GraphicsLayerPaintBackground) {
722 writeIndent(ts, indent + 2);
723 ts << "GraphicsLayerPaintBackground\n";
724 }
725 if (paintingPhase() & GraphicsLayerPaintForeground) {
726 writeIndent(ts, indent + 2);
727 ts << "GraphicsLayerPaintForeground\n";
728 }
729 if (paintingPhase() & GraphicsLayerPaintMask) {
730 writeIndent(ts, indent + 2);
731 ts << "GraphicsLayerPaintMask\n";
732 }
733 if (paintingPhase() & GraphicsLayerPaintChildClippingMask) {
734 writeIndent(ts, indent + 2);
735 ts << "GraphicsLayerPaintChildClippingMask\n";
736 }
737 if (paintingPhase() & GraphicsLayerPaintOverflowContents) {
738 writeIndent(ts, indent + 2);
739 ts << "GraphicsLayerPaintOverflowContents\n";
740 }
741 if (paintingPhase() & GraphicsLayerPaintCompositedScroll) {
742 writeIndent(ts, indent + 2);
743 ts << "GraphicsLayerPaintCompositedScroll\n";
744 }
745 writeIndent(ts, indent + 1);
746 ts << ")\n";
747 }
748
749 if (flags & LayerTreeIncludesClipAndScrollParents) {
750 if (m_hasScrollParent) {
751 writeIndent(ts, indent + 1);
752 ts << "(hasScrollParent 1)\n";
753 }
754 if (m_hasClipParent) {
755 writeIndent(ts, indent + 1);
756 ts << "(hasClipParent 1)\n";
757 }
758 }
759
760 if (m_children.size()) {
761 writeIndent(ts, indent + 1);
762 ts << "(children " << m_children.size() << "\n";
763
764 unsigned i;
765 for (i = 0; i < m_children.size(); i++)
766 m_children[i]->dumpLayer(ts, indent + 2, flags);
767 writeIndent(ts, indent + 1);
768 ts << ")\n";
769 }
770 }
771
772 String GraphicsLayer::layerTreeAsText(LayerTreeFlags flags) const
773 {
774 TextStream ts;
775
776 dumpLayer(ts, 0, flags);
777 return ts.release();
778 }
779
780 blink::WebString GraphicsLayer::debugName(blink::WebLayer* webLayer)
781 {
782 String name;
783 if (!m_client)
784 return name;
785
786 String highlightDebugName;
787 for (size_t i = 0; i < m_linkHighlights.size(); ++i) {
788 if (webLayer == m_linkHighlights[i]->layer()) {
789 highlightDebugName = "LinkHighlight[" + String::number(i) + "] for " + m_client->debugName(this);
790 break;
791 }
792 }
793
794 if (webLayer == m_contentsLayer) {
795 name = "ContentsLayer for " + m_client->debugName(this);
796 } else if (!highlightDebugName.isEmpty()) {
797 name = highlightDebugName;
798 } else if (webLayer == m_layer->layer()) {
799 name = m_client->debugName(this);
800 } else {
801 ASSERT_NOT_REACHED();
802 }
803 return name;
804 }
805
806 void GraphicsLayer::setCompositingReasons(blink::WebCompositingReasons reasons)
807 {
808 m_compositingReasons = reasons;
809 m_layer->layer()->setCompositingReasons(reasons);
810 }
811
812 void GraphicsLayer::setPosition(const FloatPoint& point)
813 {
814 m_position = point;
815 platformLayer()->setPosition(m_position);
816 }
817
818 void GraphicsLayer::setAnchorPoint(const FloatPoint3D& point)
819 {
820 m_anchorPoint = point;
821 platformLayer()->setAnchorPoint(FloatPoint(m_anchorPoint.x(), m_anchorPoint. y()));
822 platformLayer()->setAnchorPointZ(m_anchorPoint.z());
823 }
824
825 void GraphicsLayer::setSize(const FloatSize& size)
826 {
827 // We are receiving negative sizes here that cause assertions to fail in the compositor. Clamp them to 0 to
828 // avoid those assertions.
829 // FIXME: This should be an ASSERT instead, as negative sizes should not exi st in WebCore.
830 FloatSize clampedSize = size;
831 if (clampedSize.width() < 0 || clampedSize.height() < 0)
832 clampedSize = FloatSize();
833
834 if (clampedSize == m_size)
835 return;
836
837 m_size = clampedSize;
838
839 m_layer->layer()->setBounds(flooredIntSize(m_size));
840 // Note that we don't resize m_contentsLayer. It's up the caller to do that.
841 }
842
843 void GraphicsLayer::setTransform(const TransformationMatrix& transform)
844 {
845 m_transform = transform;
846 platformLayer()->setTransform(TransformationMatrix::toSkMatrix44(m_transform ));
847 }
848
849 void GraphicsLayer::setChildrenTransform(const TransformationMatrix& transform)
850 {
851 m_childrenTransform = transform;
852 platformLayer()->setSublayerTransform(TransformationMatrix::toSkMatrix44(m_c hildrenTransform));
853 }
854
855 void GraphicsLayer::setPreserves3D(bool preserves3D)
856 {
857 if (preserves3D == m_preserves3D)
858 return;
859
860 m_preserves3D = preserves3D;
861 m_layer->layer()->setPreserves3D(m_preserves3D);
862 }
863
864 void GraphicsLayer::setMasksToBounds(bool masksToBounds)
865 {
866 m_masksToBounds = masksToBounds;
867 m_layer->layer()->setMasksToBounds(m_masksToBounds);
868 }
869
870 void GraphicsLayer::setDrawsContent(bool drawsContent)
871 {
872 // Note carefully this early-exit is only correct because we also properly c all
873 // WebLayer::setDrawsContent whenever m_contentsLayer is set to a new layer in setupContentsLayer().
874 if (drawsContent == m_drawsContent)
875 return;
876
877 m_drawsContent = drawsContent;
878 updateLayerIsDrawable();
879 }
880
881 void GraphicsLayer::setContentsVisible(bool contentsVisible)
882 {
883 // Note carefully this early-exit is only correct because we also properly c all
884 // WebLayer::setDrawsContent whenever m_contentsLayer is set to a new layer in setupContentsLayer().
885 if (contentsVisible == m_contentsVisible)
886 return;
887
888 m_contentsVisible = contentsVisible;
889 updateLayerIsDrawable();
890 }
891
892 void GraphicsLayer::setClipParent(blink::WebLayer* parent)
893 {
894 m_hasClipParent = !!parent;
895 m_layer->layer()->setClipParent(parent);
896 }
897
898 void GraphicsLayer::setScrollParent(blink::WebLayer* parent)
899 {
900 m_hasScrollParent = !!parent;
901 m_layer->layer()->setScrollParent(parent);
902 }
903
904 void GraphicsLayer::setBackgroundColor(const Color& color)
905 {
906 if (color == m_backgroundColor)
907 return;
908
909 m_backgroundColor = color;
910 m_layer->layer()->setBackgroundColor(m_backgroundColor.rgb());
911 }
912
913 void GraphicsLayer::setContentsOpaque(bool opaque)
914 {
915 m_contentsOpaque = opaque;
916 m_layer->layer()->setOpaque(m_contentsOpaque);
917 m_opaqueRectTrackingContentLayerDelegate->setOpaque(m_contentsOpaque);
918 }
919
920 void GraphicsLayer::setMaskLayer(GraphicsLayer* maskLayer)
921 {
922 if (maskLayer == m_maskLayer)
923 return;
924
925 m_maskLayer = maskLayer;
926 WebLayer* maskWebLayer = m_maskLayer ? m_maskLayer->platformLayer() : 0;
927 m_layer->layer()->setMaskLayer(maskWebLayer);
928 }
929
930 void GraphicsLayer::setContentsClippingMaskLayer(GraphicsLayer* contentsClipping MaskLayer)
931 {
932 if (contentsClippingMaskLayer == m_contentsClippingMaskLayer)
933 return;
934
935 m_contentsClippingMaskLayer = contentsClippingMaskLayer;
936 WebLayer* contentsLayer = contentsLayerIfRegistered();
937 if (!contentsLayer)
938 return;
939 WebLayer* contentsClippingMaskWebLayer = m_contentsClippingMaskLayer ? m_con tentsClippingMaskLayer->platformLayer() : 0;
940 contentsLayer->setMaskLayer(contentsClippingMaskWebLayer);
941 updateContentsRect();
942 }
943
944 void GraphicsLayer::setBackfaceVisibility(bool visible)
945 {
946 m_backfaceVisibility = visible;
947 m_layer->setDoubleSided(m_backfaceVisibility);
948 }
949
950 void GraphicsLayer::setOpacity(float opacity)
951 {
952 float clampedOpacity = std::max(std::min(opacity, 1.0f), 0.0f);
953 m_opacity = clampedOpacity;
954 platformLayer()->setOpacity(opacity);
955 }
956
957 void GraphicsLayer::setBlendMode(blink::WebBlendMode blendMode)
958 {
959 if (m_blendMode == blendMode)
960 return;
961 m_blendMode = blendMode;
962 platformLayer()->setBlendMode(blink::WebBlendMode(blendMode));
963 }
964
965 void GraphicsLayer::setIsRootForIsolatedGroup(bool isolated)
966 {
967 if (m_isRootForIsolatedGroup == isolated)
968 return;
969 m_isRootForIsolatedGroup = isolated;
970 platformLayer()->setIsRootForIsolatedGroup(isolated);
971 }
972
973 void GraphicsLayer::setContentsNeedsDisplay()
974 {
975 if (WebLayer* contentsLayer = contentsLayerIfRegistered()) {
976 contentsLayer->invalidate();
977 addRepaintRect(contentsRect());
978 }
979 }
980
981 void GraphicsLayer::setNeedsDisplay()
982 {
983 if (drawsContent()) {
984 m_layer->layer()->invalidate();
985 addRepaintRect(FloatRect(FloatPoint(), m_size));
986 for (size_t i = 0; i < m_linkHighlights.size(); ++i)
987 m_linkHighlights[i]->invalidate();
988 }
989 }
990
991 void GraphicsLayer::setNeedsDisplayInRect(const FloatRect& rect)
992 {
993 if (drawsContent()) {
994 m_layer->layer()->invalidateRect(rect);
995 addRepaintRect(rect);
996 for (size_t i = 0; i < m_linkHighlights.size(); ++i)
997 m_linkHighlights[i]->invalidate();
998 }
999 }
1000
1001 void GraphicsLayer::setContentsRect(const IntRect& rect)
1002 {
1003 if (rect == m_contentsRect)
1004 return;
1005
1006 m_contentsRect = rect;
1007 updateContentsRect();
1008 }
1009
1010 void GraphicsLayer::setContentsToImage(Image* image)
1011 {
1012 RefPtr<NativeImageSkia> nativeImage = image ? image->nativeImageForCurrentFr ame() : 0;
1013 if (nativeImage) {
1014 if (!m_imageLayer) {
1015 m_imageLayer = adoptPtr(Platform::current()->compositorSupport()->cr eateImageLayer());
1016 registerContentsLayer(m_imageLayer->layer());
1017 }
1018 m_imageLayer->setBitmap(nativeImage->bitmap());
1019 m_imageLayer->layer()->setOpaque(image->currentFrameKnownToBeOpaque());
1020 updateContentsRect();
1021 } else {
1022 if (m_imageLayer) {
1023 unregisterContentsLayer(m_imageLayer->layer());
1024 m_imageLayer.clear();
1025 }
1026 }
1027
1028 setContentsTo(m_imageLayer ? m_imageLayer->layer() : 0);
1029 }
1030
1031 void GraphicsLayer::setContentsToNinePatch(Image* image, const IntRect& aperture )
1032 {
1033 if (m_ninePatchLayer) {
1034 unregisterContentsLayer(m_ninePatchLayer->layer());
1035 m_ninePatchLayer.clear();
1036 }
1037 RefPtr<NativeImageSkia> nativeImage = image ? image->nativeImageForCurrentFr ame() : 0;
1038 if (nativeImage) {
1039 m_ninePatchLayer = adoptPtr(Platform::current()->compositorSupport()->cr eateNinePatchLayer());
1040 m_ninePatchLayer->setBitmap(nativeImage->bitmap(), aperture);
1041 m_ninePatchLayer->layer()->setOpaque(image->currentFrameKnownToBeOpaque( ));
1042 registerContentsLayer(m_ninePatchLayer->layer());
1043 }
1044 setContentsTo(m_ninePatchLayer ? m_ninePatchLayer->layer() : 0);
1045 }
1046
1047 void GraphicsLayer::setContentsToSolidColor(const Color& color)
1048 {
1049 if (color == m_contentsSolidColor)
1050 return;
1051
1052 m_contentsSolidColor = color;
1053 if (color.isValid() && color.alpha()) {
1054 if (!m_solidColorLayer) {
1055 m_solidColorLayer = adoptPtr(Platform::current()->compositorSupport( )->createSolidColorLayer());
1056 registerContentsLayer(m_solidColorLayer->layer());
1057 }
1058 m_solidColorLayer->setBackgroundColor(color.rgb());
1059 } else {
1060 if (!m_solidColorLayer)
1061 return;
1062 unregisterContentsLayer(m_solidColorLayer->layer());
1063 m_solidColorLayer.clear();
1064 }
1065 setContentsTo(m_solidColorLayer ? m_solidColorLayer->layer() : 0);
1066 }
1067
1068 bool GraphicsLayer::addAnimation(PassOwnPtr<WebAnimation> popAnimation)
1069 {
1070 OwnPtr<WebAnimation> animation(popAnimation);
1071 ASSERT(animation);
1072 platformLayer()->setAnimationDelegate(this);
1073
1074 // Remove any existing animations with the same animation id and target prop erty.
1075 platformLayer()->removeAnimation(animation->id(), animation->targetProperty( ));
1076 return platformLayer()->addAnimation(animation.leakPtr());
1077 }
1078
1079 void GraphicsLayer::pauseAnimation(int animationId, double timeOffset)
1080 {
1081 platformLayer()->pauseAnimation(animationId, timeOffset);
1082 }
1083
1084 void GraphicsLayer::removeAnimation(int animationId)
1085 {
1086 platformLayer()->removeAnimation(animationId);
1087 }
1088
1089 WebLayer* GraphicsLayer::platformLayer() const
1090 {
1091 return m_layer->layer();
1092 }
1093
1094 static bool copyWebCoreFilterOperationsToWebFilterOperations(const FilterOperati ons& filters, WebFilterOperations& webFilters)
1095 {
1096 for (size_t i = 0; i < filters.size(); ++i) {
1097 const FilterOperation& op = *filters.at(i);
1098 switch (op.type()) {
1099 case FilterOperation::REFERENCE:
1100 return false; // Not supported.
1101 case FilterOperation::GRAYSCALE:
1102 case FilterOperation::SEPIA:
1103 case FilterOperation::SATURATE:
1104 case FilterOperation::HUE_ROTATE: {
1105 float amount = toBasicColorMatrixFilterOperation(op).amount();
1106 switch (op.type()) {
1107 case FilterOperation::GRAYSCALE:
1108 webFilters.appendGrayscaleFilter(amount);
1109 break;
1110 case FilterOperation::SEPIA:
1111 webFilters.appendSepiaFilter(amount);
1112 break;
1113 case FilterOperation::SATURATE:
1114 webFilters.appendSaturateFilter(amount);
1115 break;
1116 case FilterOperation::HUE_ROTATE:
1117 webFilters.appendHueRotateFilter(amount);
1118 break;
1119 default:
1120 ASSERT_NOT_REACHED();
1121 }
1122 break;
1123 }
1124 case FilterOperation::INVERT:
1125 case FilterOperation::OPACITY:
1126 case FilterOperation::BRIGHTNESS:
1127 case FilterOperation::CONTRAST: {
1128 float amount = toBasicComponentTransferFilterOperation(op).amount();
1129 switch (op.type()) {
1130 case FilterOperation::INVERT:
1131 webFilters.appendInvertFilter(amount);
1132 break;
1133 case FilterOperation::OPACITY:
1134 webFilters.appendOpacityFilter(amount);
1135 break;
1136 case FilterOperation::BRIGHTNESS:
1137 webFilters.appendBrightnessFilter(amount);
1138 break;
1139 case FilterOperation::CONTRAST:
1140 webFilters.appendContrastFilter(amount);
1141 break;
1142 default:
1143 ASSERT_NOT_REACHED();
1144 }
1145 break;
1146 }
1147 case FilterOperation::BLUR: {
1148 float pixelRadius = toBlurFilterOperation(op).stdDeviation().getFloa tValue();
1149 webFilters.appendBlurFilter(pixelRadius);
1150 break;
1151 }
1152 case FilterOperation::DROP_SHADOW: {
1153 const DropShadowFilterOperation& dropShadowOp = toDropShadowFilterOp eration(op);
1154 webFilters.appendDropShadowFilter(WebPoint(dropShadowOp.x(), dropSha dowOp.y()), dropShadowOp.stdDeviation(), dropShadowOp.color().rgb());
1155 break;
1156 }
1157 case FilterOperation::CUSTOM:
1158 case FilterOperation::VALIDATED_CUSTOM:
1159 return false; // Not supported.
1160 case FilterOperation::NONE:
1161 break;
1162 }
1163 }
1164 return true;
1165 }
1166
1167 bool GraphicsLayer::setFilters(const FilterOperations& filters)
1168 {
1169 SkiaImageFilterBuilder builder;
1170 OwnPtr<WebFilterOperations> webFilters = adoptPtr(Platform::current()->compo sitorSupport()->createFilterOperations());
1171 FilterOutsets outsets = filters.outsets();
1172 builder.setCropOffset(FloatSize(outsets.left(), outsets.top()));
1173 if (!builder.buildFilterOperations(filters, webFilters.get())) {
1174 // Make sure the filters are removed from the platform layer, as they ar e
1175 // going to fallback to software mode.
1176 webFilters->clear();
1177 m_layer->layer()->setFilters(*webFilters);
1178 m_filters = FilterOperations();
1179 return false;
1180 }
1181
1182 m_layer->layer()->setFilters(*webFilters);
1183 m_filters = filters;
1184 return true;
1185 }
1186
1187 void GraphicsLayer::setBackgroundFilters(const FilterOperations& filters)
1188 {
1189 OwnPtr<WebFilterOperations> webFilters = adoptPtr(Platform::current()->compo sitorSupport()->createFilterOperations());
1190 if (!copyWebCoreFilterOperationsToWebFilterOperations(filters, *webFilters))
1191 return;
1192 m_layer->layer()->setBackgroundFilters(*webFilters);
1193 }
1194
1195 void GraphicsLayer::addLinkHighlight(LinkHighlightClient* linkHighlight)
1196 {
1197 ASSERT(linkHighlight && !m_linkHighlights.contains(linkHighlight));
1198 m_linkHighlights.append(linkHighlight);
1199 linkHighlight->layer()->setWebLayerClient(this);
1200 updateChildList();
1201 }
1202
1203 void GraphicsLayer::removeLinkHighlight(LinkHighlightClient* linkHighlight)
1204 {
1205 m_linkHighlights.remove(m_linkHighlights.find(linkHighlight));
1206 updateChildList();
1207 }
1208
1209 void GraphicsLayer::setScrollableArea(ScrollableArea* scrollableArea, bool isMai nFrame)
1210 {
1211 if (m_scrollableArea == scrollableArea)
1212 return;
1213
1214 m_scrollableArea = scrollableArea;
1215
1216 // Main frame scrolling may involve pinch zoom and gets routed through
1217 // WebViewImpl explicitly rather than via GraphicsLayer::didScroll.
1218 if (isMainFrame)
1219 m_layer->layer()->setScrollClient(0);
1220 else
1221 m_layer->layer()->setScrollClient(this);
1222 }
1223
1224 void GraphicsLayer::paint(GraphicsContext& context, const IntRect& clip)
1225 {
1226 paintGraphicsLayerContents(context, clip);
1227 }
1228
1229
1230 void GraphicsLayer::notifyAnimationStarted(double startTime)
1231 {
1232 if (m_client)
1233 m_client->notifyAnimationStarted(this, startTime);
1234 }
1235
1236 void GraphicsLayer::notifyAnimationFinished(double)
1237 {
1238 // Do nothing.
1239 }
1240
1241 void GraphicsLayer::didScroll()
1242 {
1243 if (m_scrollableArea)
1244 m_scrollableArea->scrollToOffsetWithoutAnimation(m_scrollableArea->minim umScrollPosition() + toIntSize(m_layer->layer()->scrollPosition()));
1245 }
1246
1247 } // namespace WebCore
1248
1249 #ifndef NDEBUG
1250 void showGraphicsLayerTree(const WebCore::GraphicsLayer* layer)
1251 {
1252 if (!layer)
1253 return;
1254
1255 String output = layer->layerTreeAsText(WebCore::LayerTreeIncludesDebugInfo);
1256 fprintf(stderr, "%s\n", output.utf8().data());
1257 }
1258 #endif
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