cc: Remove cc::settings, move them to LayerTreeSettings.

cc/layer_tree_host_impl.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layer_tree_host_impl.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/debug/trace_event.h"
@@ skipping 10 matching lines @@
 #include "cc/layer_tree_host.h"
 #include "cc/layer_tree_host_common.h"
 #include "cc/math_util.h"
 #include "cc/overdraw_metrics.h"
 #include "cc/page_scale_animation.h"
 #include "cc/prioritized_resource_manager.h"
 #include "cc/render_pass_draw_quad.h"
 #include "cc/rendering_stats.h"
 #include "cc/scrollbar_animation_controller.h"
 #include "cc/scrollbar_layer_impl.h"
-#include "cc/settings.h"
 #include "cc/single_thread_proxy.h"
 #include "cc/software_renderer.h"
 #include "cc/texture_uploader.h"
 #include "ui/gfx/size_conversions.h"
 #include "ui/gfx/vector2d_conversions.h"
 
 using WebKit::WebTransformationMatrix;
 
 namespace {
 
@@ skipping 84 matching lines @@
 
     if (pinchedBounds.bottom() > m_layoutViewportSize.height()) {
         overflow.set_y(pinchedBounds.bottom() - m_layoutViewportSize.height());
         pinchedBounds += gfx::Vector2dF(0, m_layoutViewportSize.height() - pinchedBounds.bottom());
     }
     m_pinchViewportScrollDelta = pinchedBounds.OffsetFromOrigin();
 
     return overflow;
 }
 
-WebTransformationMatrix PinchZoomViewport::implTransform() const
+WebTransformationMatrix PinchZoomViewport::implTransform(bool pageScalePinchZoomEnabled) const
 {
     WebTransformationMatrix transform;
     transform.scale(m_pageScaleDelta);
 
     // If the pinch state is applied in the impl, then push it to the
     // impl transform, otherwise the scale is handled by WebCore.
-    if (Settings::pageScalePinchZoomEnabled()) {
+    if (pageScalePinchZoomEnabled) {
         transform.scale(m_pageScaleFactor);
         transform.translate(-m_pinchViewportScrollDelta.x(),
                             -m_pinchViewportScrollDelta.y());
     }
 
     return transform;
 }
 
 class LayerTreeHostImplTimeSourceAdapter : public TimeSourceClient {
 public:
@@ skipping 134 matching lines @@
     animateScrollbars(monotonicTime);
 }
 
 void LayerTreeHostImpl::startPageScaleAnimation(gfx::Vector2d targetPosition, bool anchorPoint, float pageScale, base::TimeTicks startTime, base::TimeDelta duration)
 {
     if (!m_rootScrollLayerImpl)
         return;
 
     gfx::Vector2dF scrollTotal = m_rootScrollLayerImpl->scrollOffset() + m_rootScrollLayerImpl->scrollDelta();
     gfx::SizeF scaledContentSize = contentSize();
-    if (!Settings::pageScalePinchZoomEnabled()) {
+    if (!m_settings.pageScalePinchZoomEnabled) {
         scrollTotal.Scale(1 / m_pinchZoomViewport.pageScaleFactor());
         scaledContentSize.Scale(1 / m_pinchZoomViewport.pageScaleFactor());
     }
     gfx::SizeF viewportSize = gfx::ScaleSize(m_deviceViewportSize, 1 / m_deviceScaleFactor);
 
     double startTimeSeconds = (startTime - base::TimeTicks()).InSecondsF();
     m_pageScaleAnimation = PageScaleAnimation::create(scrollTotal, m_pinchZoomViewport.totalPageScaleFactor(), viewportSize, scaledContentSize, startTimeSeconds);
 
     if (anchorPoint) {
         gfx::Vector2dF anchor(targetPosition);
-        if (!Settings::pageScalePinchZoomEnabled())
+        if (!m_settings.pageScalePinchZoomEnabled)
             anchor.Scale(1 / pageScale);
         m_pageScaleAnimation->zoomWithAnchor(anchor, pageScale, duration.InSecondsF());
     } else {
         gfx::Vector2dF scaledTargetPosition = targetPosition;
-        if (!Settings::pageScalePinchZoomEnabled())
+        if (!m_settings.pageScalePinchZoomEnabled)
             scaledTargetPosition.Scale(1 / pageScale);
         m_pageScaleAnimation->zoomTo(scaledTargetPosition, pageScale, duration.InSecondsF());
     }
 
     m_client->setNeedsRedrawOnImplThread();
     m_client->setNeedsCommitOnImplThread();
 }
 
 void LayerTreeHostImpl::scheduleAnimation()
 {
@@ skipping 52 matching lines @@
     calculateRenderSurfaceLayerList(*frame.renderSurfaceLayerList);
 
     TRACE_EVENT1("cc", "LayerTreeHostImpl::calculateRenderPasses", "renderSurfaceLayerList.size()", static_cast<long long unsigned>(frame.renderSurfaceLayerList->size()));
 
     // Create the render passes in dependency order.
     for (int surfaceIndex = frame.renderSurfaceLayerList->size() - 1; surfaceIndex >= 0 ; --surfaceIndex) {
         LayerImpl* renderSurfaceLayer = (*frame.renderSurfaceLayerList)[surfaceIndex];
         renderSurfaceLayer->renderSurface()->appendRenderPasses(frame);
     }
 
-    bool recordMetricsForFrame = Settings::traceOverdraw() && base::debug::TraceLog::GetInstance() && base::debug::TraceLog::GetInstance()->IsEnabled();
+    bool recordMetricsForFrame = m_settings.showOverdrawInTracing && base::debug::TraceLog::GetInstance() && base::debug::TraceLog::GetInstance()->IsEnabled();
     OcclusionTrackerImpl occlusionTracker(m_rootLayerImpl->renderSurface()->contentRect(), recordMetricsForFrame);
     occlusionTracker.setMinimumTrackingSize(m_settings.minimumOcclusionTrackingSize);
 
     if (settings().showOccludingRects)
         occlusionTracker.setOccludingScreenSpaceRectsContainer(&frame.occludingScreenSpaceRects);
 
     // Add quads to the Render passes in FrontToBack order to allow for testing occlusion and performing culling during the tree walk.
     typedef LayerIterator<LayerImpl, std::vector<LayerImpl*>, RenderSurfaceImpl, LayerIteratorActions::FrontToBack> LayerIteratorType;
 
     // Typically when we are missing a texture and use a checkerboard quad, we still draw the frame. However when the layer being
@@ skipping 37 matching lines @@
 
                 targetRenderPass->appendQuadsForLayer(*it, &occlusionTracker, appendQuadsData);
             }
         }
 
         if (appendQuadsData.hadOcclusionFromOutsideTargetSurface)
             targetRenderPass->setHasOcclusionFromOutsideTargetSurface(true);
 
         if (appendQuadsData.hadMissingTiles) {
             bool layerHasAnimatingTransform = it->screenSpaceTransformIsAnimating() || it->drawTransformIsAnimating();
-            if (layerHasAnimatingTransform || Settings::jankInsteadOfCheckerboard())
+            if (layerHasAnimatingTransform || m_settings.jankInsteadOfCheckerboard)
                 drawFrame = false;
         }
 
         occlusionTracker.leaveLayer(it);
     }
 
 #ifndef NDEBUG
     for (size_t i = 0; i < frame.renderPasses.size(); ++i) {
       for (size_t j = 0; j < frame.renderPasses[i]->quadList().size(); ++j)
         DCHECK(frame.renderPasses[i]->quadList()[j]->sharedQuadStateId() >= 0);
@@ skipping 494 matching lines @@
 }
 
 void LayerTreeHostImpl::setPageScaleFactorAndLimits(float pageScaleFactor, float minPageScaleFactor, float maxPageScaleFactor)
 {
     if (!pageScaleFactor)
       return;
 
     float pageScaleChange = pageScaleFactor / m_pinchZoomViewport.pageScaleFactor();
     m_pinchZoomViewport.setPageScaleFactorAndLimits(pageScaleFactor, minPageScaleFactor, maxPageScaleFactor);
 
-    if (!Settings::pageScalePinchZoomEnabled()) {
+    if (!m_settings.pageScalePinchZoomEnabled) {
         if (pageScaleChange != 1)
             adjustScrollsForPageScaleChange(m_rootScrollLayerImpl, pageScaleChange);
     }
 
     // Clamp delta to limits and refresh display matrix.
     setPageScaleDelta(m_pinchZoomViewport.pageScaleDelta() / m_pinchZoomViewport.sentPageScaleDelta());
     m_pinchZoomViewport.setSentPageScaleDelta(1);
 }
 
 void LayerTreeHostImpl::setPageScaleDelta(float delta)
 {
     m_pinchZoomViewport.setPageScaleDelta(delta);
 
     updateMaxScrollOffset();
 }
 
 void LayerTreeHostImpl::updateMaxScrollOffset()
 {
     if (!m_rootScrollLayerImpl || !m_rootScrollLayerImpl->children().size())
         return;
 
     gfx::SizeF viewBounds = m_deviceViewportSize;
     if (LayerImpl* clipLayer = m_rootScrollLayerImpl->parent()) {
         // Compensate for non-overlay scrollbars.
         if (clipLayer->masksToBounds())
             viewBounds = gfx::ScaleSize(clipLayer->bounds(), m_deviceScaleFactor);
     }
 
     gfx::Size contentBounds = contentSize();
-    if (Settings::pageScalePinchZoomEnabled()) {
+    if (m_settings.pageScalePinchZoomEnabled) {
         // Pinch with pageScale scrolls entirely in layout space.  contentSize
         // returns the bounds including the page scale factor, so calculate the
         // pre page-scale layout size here.
         float pageScaleFactor = m_pinchZoomViewport.pageScaleFactor();
         contentBounds.set_width(contentBounds.width() / pageScaleFactor);
         contentBounds.set_height(contentBounds.height() / pageScaleFactor);
     } else {
         viewBounds.Scale(1 / m_pinchZoomViewport.pageScaleDelta());
     }
 
@@ skipping 226 matching lines @@
     // position over the course of the magnify.
     float pageScaleDelta = m_pinchZoomViewport.pageScaleDelta();
     gfx::PointF previousScaleAnchor = gfx::ScalePoint(m_previousPinchAnchor, 1 / pageScaleDelta);
     setPageScaleDelta(pageScaleDelta * magnifyDelta);
     pageScaleDelta = m_pinchZoomViewport.pageScaleDelta();
     gfx::PointF newScaleAnchor = gfx::ScalePoint(anchor, 1 / pageScaleDelta);
     gfx::Vector2dF move = previousScaleAnchor - newScaleAnchor;
 
     m_previousPinchAnchor = anchor;
 
-    if (Settings::pageScalePinchZoomEnabled()) {
+    if (m_settings.pageScalePinchZoomEnabled) {
         // Compute the application of the delta with respect to the current page zoom of the page.
         move.Scale(1 / (m_pinchZoomViewport.pageScaleFactor() * m_deviceScaleFactor));
     }
 
-    gfx::Vector2dF scrollOverflow = Settings::pageScalePinchZoomEnabled() ? m_pinchZoomViewport.applyScroll(move) : move;
+    gfx::Vector2dF scrollOverflow = m_settings.pageScalePinchZoomEnabled ? m_pinchZoomViewport.applyScroll(move) : move;
     m_rootScrollLayerImpl->scrollBy(scrollOverflow);
 
     if (m_rootScrollLayerImpl->scrollbarAnimationController())
         m_rootScrollLayerImpl->scrollbarAnimationController()->didPinchGestureUpdate();
 
     m_client->setNeedsCommitOnImplThread();
     m_client->setNeedsRedrawOnImplThread();
 }
 
 void LayerTreeHostImpl::pinchGestureEnd()
 {
     m_pinchGestureActive = false;
 
     if (m_rootScrollLayerImpl && m_rootScrollLayerImpl->scrollbarAnimationController())
         m_rootScrollLayerImpl->scrollbarAnimationController()->didPinchGestureEnd();
 
     m_client->setNeedsCommitOnImplThread();
 }
 
 void LayerTreeHostImpl::computeDoubleTapZoomDeltas(ScrollAndScaleSet* scrollInfo)
 {
     gfx::Vector2dF scaledScrollOffset = m_pageScaleAnimation->targetScrollOffset();
-    if (!Settings::pageScalePinchZoomEnabled())
+    if (!m_settings.pageScalePinchZoomEnabled)
         scaledScrollOffset.Scale(m_pinchZoomViewport.pageScaleFactor());
     makeScrollAndScaleSet(scrollInfo, ToFlooredVector2d(scaledScrollOffset), m_pageScaleAnimation->targetPageScaleFactor());
 }
 
 void LayerTreeHostImpl::computePinchZoomDeltas(ScrollAndScaleSet* scrollInfo)
 {
     if (!m_rootScrollLayerImpl)
         return;
 
     // Only send fake scroll/zoom deltas if we're pinch zooming out by a
@@ skipping 57 matching lines @@
 
 scoped_ptr<ScrollAndScaleSet> LayerTreeHostImpl::processScrollDeltas()
 {
     scoped_ptr<ScrollAndScaleSet> scrollInfo(new ScrollAndScaleSet());
 
     if (m_pinchGestureActive || m_pageScaleAnimation) {
         scrollInfo->pageScaleDelta = 1;
         m_pinchZoomViewport.setSentPageScaleDelta(1);
         // FIXME(aelias): Make pinch-zoom painting optimization compatible with
         // compositor-side scaling.
-        if (!Settings::pageScalePinchZoomEnabled() && m_pinchGestureActive)
+        if (!m_settings.pageScalePinchZoomEnabled && m_pinchGestureActive)
             computePinchZoomDeltas(scrollInfo.get());
         else if (m_pageScaleAnimation.get())
             computeDoubleTapZoomDeltas(scrollInfo.get());
         return scrollInfo.Pass();
     }
 
     collectScrollDeltas(scrollInfo.get(), m_rootLayerImpl.get());
     scrollInfo->pageScaleDelta = m_pinchZoomViewport.pageScaleDelta();
     m_pinchZoomViewport.setSentPageScaleDelta(scrollInfo->pageScaleDelta);
 
     return scrollInfo.Pass();
 }
 
 WebTransformationMatrix LayerTreeHostImpl::implTransform() const
 {
-    return m_pinchZoomViewport.implTransform();
+    return m_pinchZoomViewport.implTransform(m_settings.pageScalePinchZoomEnabled);
 }
 
 void LayerTreeHostImpl::setFullRootLayerDamage()
 {
     if (m_rootLayerImpl) {
         RenderSurfaceImpl* renderSurface = m_rootLayerImpl->renderSurface();
         if (renderSurface)
             renderSurface->damageTracker()->forceFullDamageNextUpdate();
     }
 }
 
 void LayerTreeHostImpl::animatePageScale(base::TimeTicks time)
 {
     if (!m_pageScaleAnimation || !m_rootScrollLayerImpl)
         return;
 
     double monotonicTime = (time - base::TimeTicks()).InSecondsF();
     gfx::Vector2dF scrollTotal = m_rootScrollLayerImpl->scrollOffset() + m_rootScrollLayerImpl->scrollDelta();
 
     setPageScaleDelta(m_pageScaleAnimation->pageScaleFactorAtTime(monotonicTime) / m_pinchZoomViewport.pageScaleFactor());
     gfx::Vector2dF nextScroll = m_pageScaleAnimation->scrollOffsetAtTime(monotonicTime);
 
-    if (!Settings::pageScalePinchZoomEnabled())
+    if (!m_settings.pageScalePinchZoomEnabled)
         nextScroll.Scale(m_pinchZoomViewport.pageScaleFactor());
     m_rootScrollLayerImpl->scrollBy(nextScroll - scrollTotal);
     m_client->setNeedsRedrawOnImplThread();
 
     if (m_pageScaleAnimation->isAnimationCompleteAtTime(monotonicTime)) {
         m_pageScaleAnimation.reset();
         m_client->setNeedsCommitOnImplThread();
     }
 }
 
 void LayerTreeHostImpl::animateLayers(base::TimeTicks monotonicTime, base::Time wallClockTime)
 {
-    if (!Settings::acceleratedAnimationEnabled() || !m_needsAnimateLayers || !m_rootLayerImpl)
+    if (!m_settings.acceleratedAnimationEnabled || !m_needsAnimateLayers || !m_rootLayerImpl)
         return;
 
     TRACE_EVENT0("cc", "LayerTreeHostImpl::animateLayers");
 
     scoped_ptr<AnimationEventsVector> events(make_scoped_ptr(new AnimationEventsVector));
 
     bool didAnimate = false;
     animateLayersRecursive(m_rootLayerImpl.get(), monotonicTime, wallClockTime, events.get(), didAnimate, m_needsAnimateLayers);
 
     if (!events->empty())
@@ skipping 82 matching lines @@
     ScrollbarAnimationController* scrollbarController = layer->scrollbarAnimationController();
     double monotonicTime = (time - base::TimeTicks()).InSecondsF();
     if (scrollbarController && scrollbarController->animate(monotonicTime))
         m_client->setNeedsRedrawOnImplThread();
 
     for (size_t i = 0; i < layer->children().size(); ++i)
         animateScrollbarsRecursive(layer->children()[i], time);
 }
 
 }  // namespace cc