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b9ff394182
Instead, make Layer::Paint take a new PaintContext that has just exactly the state that it needs, mirroring PrerollContext. Also, rename PaintContext to CompositorContext because it holds the context for the whole compositor.
89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef FLOW_LAYERS_LAYER_H_
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#define FLOW_LAYERS_LAYER_H_
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#include <memory>
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#include <vector>
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#include "base/logging.h"
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#include "base/macros.h"
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#include "flow/instrumentation.h"
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#include "flow/raster_cache.h"
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#include "skia/ext/refptr.h"
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#include "third_party/skia/include/core/SkCanvas.h"
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#include "third_party/skia/include/core/SkColor.h"
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#include "third_party/skia/include/core/SkColorFilter.h"
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#include "third_party/skia/include/core/SkMatrix.h"
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#include "third_party/skia/include/core/SkPath.h"
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#include "third_party/skia/include/core/SkPicture.h"
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#include "third_party/skia/include/core/SkRect.h"
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#include "third_party/skia/include/core/SkRRect.h"
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#include "third_party/skia/include/core/SkXfermode.h"
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namespace mojo {
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namespace gfx {
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namespace composition {
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class SceneUpdate;
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class Node;
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} // composition
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} // namespace gfx
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} // namespace mojo
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namespace flow {
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class ContainerLayer;
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class Layer {
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public:
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Layer();
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virtual ~Layer();
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struct PrerollContext {
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RasterCache& raster_cache;
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GrContext* gr_context;
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SkRect child_paint_bounds;
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};
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virtual void Preroll(PrerollContext* context, const SkMatrix& matrix);
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struct PaintContext {
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SkCanvas& canvas;
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const Stopwatch& frame_time;
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const Stopwatch& engine_time;
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};
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virtual void Paint(PaintContext& context) = 0;
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virtual void UpdateScene(mojo::gfx::composition::SceneUpdate* update,
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mojo::gfx::composition::Node* container);
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ContainerLayer* parent() const { return parent_; }
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void set_parent(ContainerLayer* parent) { parent_ = parent; }
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// subclasses should assume this will be true by the time Paint() is called
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const bool has_paint_bounds() const { return has_paint_bounds_; }
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const SkRect& paint_bounds() const {
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DCHECK(has_paint_bounds_);
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return paint_bounds_;
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}
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void set_paint_bounds(const SkRect& paint_bounds) {
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has_paint_bounds_ = true;
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paint_bounds_ = paint_bounds;
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}
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private:
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ContainerLayer* parent_;
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bool has_paint_bounds_; // if false, paint_bounds_ is not valid
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SkRect paint_bounds_;
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DISALLOW_COPY_AND_ASSIGN(Layer);
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};
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} // namespace flow
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#endif // FLOW_LAYERS_LAYER_H_
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