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// Copyright 2010 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/layers/render_surface.h"
#include "cc/base/math_util.h"
#include "cc/layers/layer.h"
#include "ui/gfx/transform.h"
namespace cc {
RenderSurface::RenderSurface(Layer* owning_layer)
: owning_layer_(owning_layer),
draw_opacity_(1),
draw_opacity_is_animating_(false),
target_surface_transforms_are_animating_(false),
screen_space_transforms_are_animating_(false),
is_clipped_(false),
contributes_to_drawn_surface_(false),
nearest_ancestor_that_moves_pixels_(NULL) {}
RenderSurface::~RenderSurface() {
for (size_t i = 0; i < layer_list_.size(); ++i) {
DCHECK(!layer_list_.at(i)->render_surface()) <<
"RenderSurfaces should be cleared from the contributing layers " <<
"before destroying this surface to avoid leaking a circular " <<
"reference on the contributing layer. Probably the " <<
"RenderSurfaceLayerList should just be destroyed before destroying " <<
"any RenderSurfaces on layers.";
}
}
gfx::RectF RenderSurface::DrawableContentRect() const {
gfx::RectF drawable_content_rect =
MathUtil::MapClippedRect(draw_transform_, content_rect_);
if (owning_layer_->has_replica())
drawable_content_rect.Union(
MathUtil::MapClippedRect(replica_draw_transform_, content_rect_));
return drawable_content_rect;
}
} // namespace cc
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