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// Copyright 2012 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_QUADS_SHARED_QUAD_STATE_H_
#define CC_QUADS_SHARED_QUAD_STATE_H_
#include "base/memory/scoped_ptr.h"
#include "cc/base/cc_export.h"
#include "third_party/skia/include/core/SkXfermode.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/transform.h"
namespace base {
namespace trace_event {
class TracedValue;
}
class Value;
}
namespace cc {
// SharedQuadState holds a set of properties that are common across multiple
// DrawQuads. It's purely an optimization - the properties behave in exactly the
// same way as if they were replicated on each DrawQuad. A given SharedQuadState
// can only be shared by DrawQuads that are adjacent in their RenderPass'
// QuadList.
class CC_EXPORT SharedQuadState {
public:
SharedQuadState();
~SharedQuadState();
void CopyFrom(const SharedQuadState* other);
void SetAll(const gfx::Transform& quad_to_target_transform,
const gfx::Size& layer_bounds,
const gfx::Rect& visible_layer_rect,
const gfx::Rect& clip_rect,
bool is_clipped,
float opacity,
SkXfermode::Mode blend_mode,
int sorting_context_id);
void AsValueInto(base::trace_event::TracedValue* dict) const;
// Transforms quad rects into the target content space.
gfx::Transform quad_to_target_transform;
// The size of the quads' originating layer in the space of the quad rects.
gfx::Size quad_layer_bounds;
// The size of the visible area in the quads' originating layer, in the space
// of the quad rects.
gfx::Rect visible_quad_layer_rect;
// This rect lives in the target content space.
gfx::Rect clip_rect;
bool is_clipped;
float opacity;
SkXfermode::Mode blend_mode;
int sorting_context_id;
};
} // namespace cc
#endif // CC_QUADS_SHARED_QUAD_STATE_H_
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