1 // Copyright 2010 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "cc/layers/render_surface.h" 6 7 #include "cc/base/math_util.h" 8 #include "cc/layers/layer.h" 9 #include "ui/gfx/transform.h" 10 11 namespace cc { 12 13 RenderSurface::RenderSurface(Layer* owning_layer) 14 : owning_layer_(owning_layer), 15 draw_opacity_(1), 16 draw_opacity_is_animating_(false), 17 target_surface_transforms_are_animating_(false), 18 screen_space_transforms_are_animating_(false), 19 is_clipped_(false), 20 contributes_to_drawn_surface_(false), 21 nearest_ancestor_that_moves_pixels_(NULL) {} 22 23 RenderSurface::~RenderSurface() { 24 for (size_t i = 0; i < layer_list_.size(); ++i) { 25 DCHECK(!layer_list_.at(i)->render_surface()) << 26 "RenderSurfaces should be cleared from the contributing layers " << 27 "before destroying this surface to avoid leaking a circular " << 28 "reference on the contributing layer. Probably the " << 29 "RenderSurfaceLayerList should just be destroyed before destroying " << 30 "any RenderSurfaces on layers."; 31 } 32 } 33 34 gfx::RectF RenderSurface::DrawableContentRect() const { 35 gfx::RectF drawable_content_rect = 36 MathUtil::MapClippedRect(draw_transform_, content_rect_); 37 if (owning_layer_->has_replica()) 38 drawable_content_rect.Union( 39 MathUtil::MapClippedRect(replica_draw_transform_, content_rect_)); 40 return drawable_content_rect; 41 } 42 43 } // namespace cc 44
