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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.
#ifndef CC_LAYERS_RENDER_SURFACE_H_
#define CC_LAYERS_RENDER_SURFACE_H_
#include <vector>
#include "base/basictypes.h"
#include "base/memory/ref_counted.h"
#include "cc/base/cc_export.h"
#include "cc/layers/layer_lists.h"
#include "ui/gfx/rect.h"
#include "ui/gfx/rect_f.h"
#include "ui/gfx/transform.h"
namespace cc {
class Layer;
class CC_EXPORT RenderSurface {
public:
explicit RenderSurface(Layer* owning_layer);
~RenderSurface();
// Returns the rect that encloses the RenderSurfaceImpl including any
// reflection.
gfx::RectF DrawableContentRect() const;
void SetContentRect(gfx::Rect content_rect) { content_rect_ = content_rect; }
gfx::Rect content_rect() const { return content_rect_; }
void SetDrawOpacity(float opacity) { draw_opacity_ = opacity; }
float draw_opacity() const { return draw_opacity_; }
void SetDrawOpacityIsAnimating(bool draw_opacity_is_animating) {
draw_opacity_is_animating_ = draw_opacity_is_animating;
}
bool draw_opacity_is_animating() const { return draw_opacity_is_animating_; }
void SetDrawTransform(const gfx::Transform& draw_transform) {
draw_transform_ = draw_transform;
}
const gfx::Transform& draw_transform() const { return draw_transform_; }
void SetScreenSpaceTransform(const gfx::Transform& screen_space_transform) {
screen_space_transform_ = screen_space_transform;
}
const gfx::Transform& screen_space_transform() const {
return screen_space_transform_;
}
void SetReplicaDrawTransform(const gfx::Transform& replica_draw_transform) {
replica_draw_transform_ = replica_draw_transform;
}
const gfx::Transform& replica_draw_transform() const {
return replica_draw_transform_;
}
void SetReplicaScreenSpaceTransform(
const gfx::Transform& replica_screen_space_transform) {
replica_screen_space_transform_ = replica_screen_space_transform;
}
const gfx::Transform& replica_screen_space_transform() const {
return replica_screen_space_transform_;
}
void SetTargetSurfaceTransformsAreAnimating(bool animating) {
target_surface_transforms_are_animating_ = animating;
}
bool target_surface_transforms_are_animating() const {
return target_surface_transforms_are_animating_;
}
void SetScreenSpaceTransformsAreAnimating(bool animating) {
screen_space_transforms_are_animating_ = animating;
}
bool screen_space_transforms_are_animating() const {
return screen_space_transforms_are_animating_;
}
bool is_clipped() const { return is_clipped_; }
void SetIsClipped(bool is_clipped) { is_clipped_ = is_clipped; }
gfx::Rect clip_rect() const { return clip_rect_; }
void SetClipRect(gfx::Rect clip_rect) { clip_rect_ = clip_rect; }
// When false, the RenderSurface does not contribute to another target
// RenderSurface that is being drawn for the current frame. It could still be
// drawn to as a target, but its output will not be a part of any other
// surface.
bool contributes_to_drawn_surface() const {
return contributes_to_drawn_surface_;
}
void set_contributes_to_drawn_surface(bool contributes_to_drawn_surface) {
contributes_to_drawn_surface_ = contributes_to_drawn_surface;
}
RenderSurfaceLayerList& layer_list() { return layer_list_; }
// A no-op since DelegatedRendererLayers on the main thread don't have any
// RenderPasses so they can't contribute to a surface.
void AddContributingDelegatedRenderPassLayer(Layer* layer) {}
void SetNearestAncestorThatMovesPixels(RenderSurface* surface) {
nearest_ancestor_that_moves_pixels_ = surface;
}
const RenderSurface* nearest_ancestor_that_moves_pixels() const {
return nearest_ancestor_that_moves_pixels_;
}
private:
friend struct LayerIteratorActions;
Layer* owning_layer_;
// Uses this surface's space.
gfx::Rect content_rect_;
float draw_opacity_;
bool draw_opacity_is_animating_;
gfx::Transform draw_transform_;
gfx::Transform screen_space_transform_;
gfx::Transform replica_draw_transform_;
gfx::Transform replica_screen_space_transform_;
bool target_surface_transforms_are_animating_;
bool screen_space_transforms_are_animating_;
bool is_clipped_;
bool contributes_to_drawn_surface_;
// Uses the space of the surface's target surface.
gfx::Rect clip_rect_;
RenderSurfaceLayerList layer_list_;
// The nearest ancestor target surface that will contain the contents of this
// surface, and that is going to move pixels within the surface (such as with
// a blur). This can point to itself.
RenderSurface* nearest_ancestor_that_moves_pixels_;
// For LayerIteratorActions
int target_render_surface_layer_index_history_;
int current_layer_index_history_;
DISALLOW_COPY_AND_ASSIGN(RenderSurface);
};
} // namespace cc
#endif // CC_LAYERS_RENDER_SURFACE_H_
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