// 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/render_surface_impl.h" #include #include "base/logging.h" #include "base/stringprintf.h" #include "cc/damage_tracker.h" #include "cc/debug_border_draw_quad.h" #include "cc/delegated_renderer_layer_impl.h" #include "cc/layer_impl.h" #include "cc/math_util.h" #include "cc/quad_sink.h" #include "cc/render_pass.h" #include "cc/render_pass_draw_quad.h" #include "cc/render_pass_sink.h" #include "cc/shared_quad_state.h" #include "ui/gfx/rect_conversions.h" #include using WebKit::WebTransformationMatrix; namespace cc { static const int debugSurfaceBorderWidth = 2; static const int debugSurfaceBorderAlpha = 100; static const int debugSurfaceBorderColorRed = 0; static const int debugSurfaceBorderColorGreen = 0; static const int debugSurfaceBorderColorBlue = 255; static const int debugReplicaBorderColorRed = 160; static const int debugReplicaBorderColorGreen = 0; static const int debugReplicaBorderColorBlue = 255; RenderSurfaceImpl::RenderSurfaceImpl(LayerImpl* owningLayer) : m_owningLayer(owningLayer) , m_surfacePropertyChanged(false) , m_drawOpacity(1) , m_drawOpacityIsAnimating(false) , m_targetSurfaceTransformsAreAnimating(false) , m_screenSpaceTransformsAreAnimating(false) , m_nearestAncestorThatMovesPixels(0) , m_targetRenderSurfaceLayerIndexHistory(0) , m_currentLayerIndexHistory(0) { m_damageTracker = DamageTracker::create(); } RenderSurfaceImpl::~RenderSurfaceImpl() { } gfx::RectF RenderSurfaceImpl::drawableContentRect() const { gfx::RectF drawableContentRect = MathUtil::mapClippedRect(m_drawTransform, m_contentRect); if (m_owningLayer->hasReplica()) drawableContentRect.Union(MathUtil::mapClippedRect(m_replicaDrawTransform, m_contentRect)); return drawableContentRect; } std::string RenderSurfaceImpl::name() const { return base::StringPrintf("RenderSurfaceImpl(id=%i,owner=%s)", m_owningLayer->id(), m_owningLayer->debugName().data()); } static std::string indentString(int indent) { std::string str; for (int i = 0; i != indent; ++i) str.append(" "); return str; } void RenderSurfaceImpl::dumpSurface(std::string* str, int indent) const { std::string indentStr = indentString(indent); str->append(indentStr); base::StringAppendF(str, "%s\n", name().data()); indentStr.append(" "); str->append(indentStr); base::StringAppendF(str, "contentRect: (%d, %d, %d, %d)\n", m_contentRect.x(), m_contentRect.y(), m_contentRect.width(), m_contentRect.height()); str->append(indentStr); base::StringAppendF(str, "drawTransform: %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f\n", m_drawTransform.m11(), m_drawTransform.m12(), m_drawTransform.m13(), m_drawTransform.m14(), m_drawTransform.m21(), m_drawTransform.m22(), m_drawTransform.m23(), m_drawTransform.m24(), m_drawTransform.m31(), m_drawTransform.m32(), m_drawTransform.m33(), m_drawTransform.m34(), m_drawTransform.m41(), m_drawTransform.m42(), m_drawTransform.m43(), m_drawTransform.m44()); str->append(indentStr); base::StringAppendF(str, "damageRect is pos(%f, %f), size(%f, %f)\n", m_damageTracker->currentDamageRect().x(), m_damageTracker->currentDamageRect().y(), m_damageTracker->currentDamageRect().width(), m_damageTracker->currentDamageRect().height()); } int RenderSurfaceImpl::owningLayerId() const { return m_owningLayer ? m_owningLayer->id() : 0; } void RenderSurfaceImpl::setClipRect(const gfx::Rect& clipRect) { if (m_clipRect == clipRect) return; m_surfacePropertyChanged = true; m_clipRect = clipRect; } bool RenderSurfaceImpl::contentsChanged() const { return !m_damageTracker->currentDamageRect().IsEmpty(); } void RenderSurfaceImpl::setContentRect(const gfx::Rect& contentRect) { if (m_contentRect == contentRect) return; m_surfacePropertyChanged = true; m_contentRect = contentRect; } bool RenderSurfaceImpl::surfacePropertyChanged() const { // Surface property changes are tracked as follows: // // - m_surfacePropertyChanged is flagged when the clipRect or contentRect change. As // of now, these are the only two properties that can be affected by descendant layers. // // - all other property changes come from the owning layer (or some ancestor layer // that propagates its change to the owning layer). // DCHECK(m_owningLayer); return m_surfacePropertyChanged || m_owningLayer->layerPropertyChanged(); } bool RenderSurfaceImpl::surfacePropertyChangedOnlyFromDescendant() const { return m_surfacePropertyChanged && !m_owningLayer->layerPropertyChanged(); } void RenderSurfaceImpl::addContributingDelegatedRenderPassLayer(LayerImpl* layer) { DCHECK(std::find(m_layerList.begin(), m_layerList.end(), layer) != m_layerList.end()); DelegatedRendererLayerImpl* delegatedRendererLayer = static_cast(layer); m_contributingDelegatedRenderPassLayerList.push_back(delegatedRendererLayer); } void RenderSurfaceImpl::clearLayerLists() { m_layerList.clear(); m_contributingDelegatedRenderPassLayerList.clear(); } static inline gfx::Rect computeClippedRectInTarget(const LayerImpl* owningLayer) { DCHECK(owningLayer->parent()); const LayerImpl* renderTarget = owningLayer->parent()->renderTarget(); const RenderSurfaceImpl* self = owningLayer->renderSurface(); gfx::Rect clippedRectInTarget = self->clipRect(); if (owningLayer->backgroundFilters().hasFilterThatMovesPixels()) { // If the layer has background filters that move pixels, we cannot scissor as tightly. // FIXME: this should be able to be a tighter scissor, perhaps expanded by the filter outsets? clippedRectInTarget = renderTarget->renderSurface()->contentRect(); } else if (clippedRectInTarget.IsEmpty()) { // For surfaces, empty clipRect means that the surface does not clip anything. clippedRectInTarget = renderTarget->renderSurface()->contentRect(); clippedRectInTarget.Intersect(gfx::ToEnclosingRect(self->drawableContentRect())); } else clippedRectInTarget.Intersect(gfx::ToEnclosingRect(self->drawableContentRect())); return clippedRectInTarget; } RenderPass::Id RenderSurfaceImpl::renderPassId() { int layerId = m_owningLayer->id(); int subId = 0; DCHECK(layerId > 0); return RenderPass::Id(layerId, subId); } void RenderSurfaceImpl::appendRenderPasses(RenderPassSink& passSink) { for (size_t i = 0; i < m_contributingDelegatedRenderPassLayerList.size(); ++i) m_contributingDelegatedRenderPassLayerList[i]->appendContributingRenderPasses(passSink); scoped_ptr pass = RenderPass::create(renderPassId(), m_contentRect, m_screenSpaceTransform); pass->setDamageRect(m_damageTracker->currentDamageRect()); pass->setFilters(m_owningLayer->filters()); pass->setFilter(m_owningLayer->filter()); pass->setBackgroundFilters(m_owningLayer->backgroundFilters()); passSink.appendRenderPass(pass.Pass()); } void RenderSurfaceImpl::appendQuads(QuadSink& quadSink, AppendQuadsData& appendQuadsData, bool forReplica, RenderPass::Id renderPassId) { DCHECK(!forReplica || m_owningLayer->hasReplica()); gfx::Rect clippedRectInTarget = computeClippedRectInTarget(m_owningLayer); bool isOpaque = false; const WebTransformationMatrix& drawTransform = forReplica ? m_replicaDrawTransform : m_drawTransform; SharedQuadState* sharedQuadState = quadSink.useSharedQuadState(SharedQuadState::create(drawTransform, m_contentRect, clippedRectInTarget, m_drawOpacity, isOpaque).Pass()); if (m_owningLayer->hasDebugBorders()) { int red = forReplica ? debugReplicaBorderColorRed : debugSurfaceBorderColorRed; int green = forReplica ? debugReplicaBorderColorGreen : debugSurfaceBorderColorGreen; int blue = forReplica ? debugReplicaBorderColorBlue : debugSurfaceBorderColorBlue; SkColor color = SkColorSetARGB(debugSurfaceBorderAlpha, red, green, blue); quadSink.append(DebugBorderDrawQuad::create(sharedQuadState, contentRect(), color, debugSurfaceBorderWidth).PassAs(), appendQuadsData); } // FIXME: By using the same RenderSurfaceImpl for both the content and its reflection, // it's currently not possible to apply a separate mask to the reflection layer // or correctly handle opacity in reflections (opacity must be applied after drawing // both the layer and its reflection). The solution is to introduce yet another RenderSurfaceImpl // to draw the layer and its reflection in. For now we only apply a separate reflection // mask if the contents don't have a mask of their own. LayerImpl* maskLayer = m_owningLayer->maskLayer(); if (maskLayer && (!maskLayer->drawsContent() || maskLayer->bounds().IsEmpty())) maskLayer = 0; if (!maskLayer && forReplica) { maskLayer = m_owningLayer->replicaLayer()->maskLayer(); if (maskLayer && (!maskLayer->drawsContent() || maskLayer->bounds().IsEmpty())) maskLayer = 0; } float maskTexCoordScaleX = 1; float maskTexCoordScaleY = 1; float maskTexCoordOffsetX = 0; float maskTexCoordOffsetY = 0; if (maskLayer) { maskTexCoordScaleX = contentRect().width() / maskLayer->contentsScaleX() / maskLayer->bounds().width(); maskTexCoordScaleY = contentRect().height() / maskLayer->contentsScaleY() / maskLayer->bounds().height(); maskTexCoordOffsetX = static_cast(contentRect().x()) / contentRect().width() * maskTexCoordScaleX; maskTexCoordOffsetY = static_cast(contentRect().y()) / contentRect().height() * maskTexCoordScaleY; } ResourceProvider::ResourceId maskResourceId = maskLayer ? maskLayer->contentsResourceId() : 0; gfx::Rect contentsChangedSinceLastFrame = contentsChanged() ? m_contentRect : gfx::Rect(); quadSink.append(RenderPassDrawQuad::create(sharedQuadState, contentRect(), renderPassId, forReplica, maskResourceId, contentsChangedSinceLastFrame, maskTexCoordScaleX, maskTexCoordScaleY, maskTexCoordOffsetX, maskTexCoordOffsetY).PassAs(), appendQuadsData); } } // namespace cc