cc: handling debug settings in new LayerTreeDebugState structure

cc/heads_up_display_layer.cc

 // Copyright 2012 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/heads_up_display_layer.h"
 
 #include "base/debug/trace_event.h"
 #include "cc/heads_up_display_layer_impl.h"
 #include "cc/layer_tree_host.h"
 
 namespace cc {
 
+HeadsUpDisplayLayerSettings::HeadsUpDisplayLayerSettings()
+    : showFPSCounter(false)
+    , showPlatformLayerTree(false)
+    , showPaintRects(false)
+    , showPropertyChangedRects(false)
+    , showSurfaceDamageRects(false)
+    , showScreenSpaceRects(false)
+    , showReplicaScreenSpaceRects(false)
+    , showOccludingRects(false)
+    , showNonOccludingRects(false)
+{
+}
+
+bool HeadsUpDisplayLayerSettings::showDebugInfo() const
+{
+    return showFPSCounter || showPlatformLayerTree || showDebugRects();
+}
+
+bool HeadsUpDisplayLayerSettings::showDebugRects() const
+{
+    return showPaintRects || showPropertyChangedRects || showSurfaceDamageRects || showScreenSpaceRects || showReplicaScreenSpaceRects || showOccludingRects || showNonOccludingRects;
+}
+
+HeadsUpDisplayLayerSettings HeadsUpDisplayLayerSettings::merge(HeadsUpDisplayLayerSettings& other)
+{
+    HeadsUpDisplayLayerSettings settings;
+
+    settings.showFPSCounter = showFPSCounter | other.showFPSCounter;
+    settings.showPlatformLayerTree = showPlatformLayerTree | other.showPlatformLayerTree;
+
+    settings.showPaintRects = showPaintRects | other.showPaintRects;
+    settings.showPropertyChangedRects = showPropertyChangedRects | other.showPropertyChangedRects;
+    settings.showSurfaceDamageRects = showSurfaceDamageRects | other.showSurfaceDamageRects;
+    settings.showScreenSpaceRects = showScreenSpaceRects | other.showScreenSpaceRects;
+    settings.showReplicaScreenSpaceRects = showReplicaScreenSpaceRects | other.showReplicaScreenSpaceRects;
+    settings.showNonOccludingRects = showNonOccludingRects | other.showNonOccludingRects;
+
+    return settings;
+}
+
 scoped_refptr<HeadsUpDisplayLayer> HeadsUpDisplayLayer::create()
 {
     return make_scoped_refptr(new HeadsUpDisplayLayer());
 }
 
 HeadsUpDisplayLayer::HeadsUpDisplayLayer()
     : Layer()
-    , m_showFPSCounter(false)
 {
     setBounds(gfx::Size(256, 128));
 }
 
 HeadsUpDisplayLayer::~HeadsUpDisplayLayer()
 {
 }
 
 void HeadsUpDisplayLayer::update(ResourceUpdateQueue&, const OcclusionTracker*, RenderingStats&)
 {
-    const LayerTreeSettings& settings = layerTreeHost()->settings();
     int maxTextureSize = layerTreeHost()->rendererCapabilities().maxTextureSize;
 
     gfx::Size bounds;
     WebKit::WebTransformationMatrix matrix;
     matrix.makeIdentity();
 
-    if (settings.showPlatformLayerTree || settings.showDebugRects()) {
+    if (m_settings.showPlatformLayerTree || m_settings.showDebugRects()) {
         int width = std::min(maxTextureSize, layerTreeHost()->deviceViewportSize().width());
         int height = std::min(maxTextureSize, layerTreeHost()->deviceViewportSize().height());
         bounds = gfx::Size(width, height);
     } else {
         bounds = gfx::Size(256, 128);
         matrix.translate(layerTreeHost()->deviceViewportSize().width() - 256, 0);
     }
 
     setBounds(bounds);
     setTransform(matrix);
 }
 
 bool HeadsUpDisplayLayer::drawsContent() const
 {
-    return true;
+    return m_settings.showDebugInfo();

[egraether, 2012/11/20 21:30:30]

prevent drawing when nothing is displayed.

 }
 
 void HeadsUpDisplayLayer::setFontAtlas(scoped_ptr<FontAtlas> fontAtlas)
 {
     m_fontAtlas = fontAtlas.Pass();
     setNeedsCommit();
 }
 
-void HeadsUpDisplayLayer::setShowFPSCounter(bool show)
-{
-    m_showFPSCounter = show;
-    setNeedsCommit();
-}
-
 scoped_ptr<LayerImpl> HeadsUpDisplayLayer::createLayerImpl()
 {
     return HeadsUpDisplayLayerImpl::create(m_layerId).PassAs<LayerImpl>();
 }
 
 void HeadsUpDisplayLayer::pushPropertiesTo(LayerImpl* layerImpl)
 {
     Layer::pushPropertiesTo(layerImpl);
 
     HeadsUpDisplayLayerImpl* hudLayerImpl = static_cast<HeadsUpDisplayLayerImpl*>(layerImpl);
-    hudLayerImpl->setShowFPSCounter(m_showFPSCounter);
+    hudLayerImpl->setSettings(m_settings);
 
     if (m_fontAtlas.get())
         hudLayerImpl->setFontAtlas(m_fontAtlas.Pass());
 }
 
 }  // namespace cc