cc/layers/render_surface_draw_properties.h

// Copyright 2015 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_DRAW_PROPERTIES_H_
#define CC_LAYERS_RENDER_SURFACE_DRAW_PROPERTIES_H_

#include "cc/base/cc_export.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/transform.h"

namespace cc {

// Container for properties that render surfaces need to compute before they can
// be drawn.
struct CC_EXPORT RenderSurfaceDrawProperties {
  RenderSurfaceDrawProperties();
  ~RenderSurfaceDrawProperties();

  float draw_opacity;

  // Transforms from the surface's own space to the space of its target surface.
  gfx::Transform draw_transform;

  // Transforms from the surface's own space to the viewport.
  gfx::Transform screen_space_transform;

  // If the surface has a replica, these transform from the replica's space to
  // the space of the target surface and the viewport.
  gfx::Transform replica_draw_transform;
  gfx::Transform replica_screen_space_transform;

  // This is in the surface's own space.
  gfx::Rect content_rect;

  // This is in the space of the surface's target surface.
  gfx::Rect clip_rect;

  // True if the surface needs to be clipped by clip_rect.
  bool is_clipped;
};

}  // namespace cc

#endif  // CC_LAYERS_RENDER_SURFACE_DRAW_PROPERTIES_H_