Add ColorBehavior to GraphicsLayer and GraphicsContext

third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 92 matching lines @@
                                       client->isTrackingRasterInvalidations()),
       m_paintingPhase(GraphicsLayerPaintAllWithOverflowClip),
       m_parent(0),
       m_maskLayer(0),
       m_contentsClippingMaskLayer(0),
       m_paintCount(0),
       m_contentsLayer(0),
       m_contentsLayerId(0),
       m_scrollableArea(nullptr),
       m_renderingContext3d(0),
+      m_colorBehavior(ColorBehavior::transformToGlobalTarget()),
       m_hasPreferredRasterBounds(false) {
 #if ENABLE(ASSERT)
   if (m_client)
     m_client->verifyNotPainting();
 #endif
 
+  // In true color mode, no inputs are adjusted, and all colors are converted
+  // at rasterization time.
+  if (RuntimeEnabledFeatures::trueColorRenderingEnabled())
+    m_colorBehavior = ColorBehavior::tag();
+
   m_contentLayerDelegate = WTF::makeUnique<ContentLayerDelegate>(this);
   m_layer = Platform::current()->compositorSupport()->createContentLayer(
       m_contentLayerDelegate.get());
   m_layer->layer()->setDrawsContent(m_drawsContent && m_contentsVisible);
   m_layer->layer()->setLayerClient(this);
 }
 
 GraphicsLayer::~GraphicsLayer() {
   for (size_t i = 0; i < m_linkHighlights.size(); ++i)
     m_linkHighlights[i]->clearCurrentGraphicsLayer();
@@ skipping 191 matching lines @@
         m_client->computeInterestRect(this, m_previousInterestRect);
     interestRect = &newInterestRect;
   }
 
   if (!getPaintController().subsequenceCachingIsDisabled() &&
       !m_client->needsRepaint(*this) && !getPaintController().cacheIsEmpty() &&
       m_previousInterestRect == *interestRect) {
     return false;
   }
 
-  GraphicsContext context(getPaintController(), disabledMode);
+  GraphicsContext context(getPaintController(), disabledMode, nullptr,
+                          m_colorBehavior);
 
   m_previousInterestRect = *interestRect;
   m_client->paintContents(this, context, m_paintingPhase, *interestRect);
   notifyFirstPaintToClient();
   return true;
 }
 
 void GraphicsLayer::notifyFirstPaintToClient() {
   bool isFirstPaint = false;
   if (!m_painted) {
@@ skipping 886 matching lines @@
 void GraphicsLayer::setCompositorMutableProperties(uint32_t properties) {
   if (WebLayer* layer = platformLayer())
     layer->setCompositorMutableProperties(properties);
 }
 
 sk_sp<SkPicture> GraphicsLayer::capturePicture() {
   if (!drawsContent())
     return nullptr;
 
   IntSize intSize = expandedIntSize(size());
-  GraphicsContext graphicsContext(getPaintController());
+  GraphicsContext graphicsContext(getPaintController(),
+                                  GraphicsContext::NothingDisabled, nullptr,
+                                  m_colorBehavior);
   graphicsContext.beginRecording(IntRect(IntPoint(0, 0), intSize));
   getPaintController().paintArtifact().replay(graphicsContext);
   return graphicsContext.endRecording();
 }
 
 static bool pixelComponentsDiffer(int c1, int c2) {
   // Compare strictly for saturated values.
   if (c1 == 0 || c1 == 255 || c2 == 0 || c2 == 255)
     return c1 != c2;
   // Tolerate invisible differences that may occur in gradients etc.
@@ skipping 95 matching lines @@
 void showGraphicsLayerTree(const blink::GraphicsLayer* layer) {
   if (!layer) {
     LOG(INFO) << "Cannot showGraphicsLayerTree for (nil).";
     return;
   }
 
   String output = layer->layerTreeAsText(blink::LayerTreeIncludesDebugInfo);
   LOG(INFO) << output.utf8().data();
 }
 #endif