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80 lines
2.0 KiB
C++
80 lines
2.0 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 SKY_COMPOSITOR_PAINT_CONTEXT_H_
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#define SKY_COMPOSITOR_PAINT_CONTEXT_H_
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#include <memory>
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#include <string>
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#include "base/macros.h"
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#include "base/logging.h"
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#include "sky/compositor/instrumentation.h"
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#include "third_party/skia/include/core/SkCanvas.h"
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#include "third_party/skia/include/core/SkPictureRecorder.h"
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#include "ui/gfx/geometry/size.h"
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namespace sky {
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namespace compositor {
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class PaintContext {
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public:
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class ScopedFrame {
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public:
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SkCanvas& canvas() { return *canvas_; }
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PaintContext& context() const { return context_; }
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ScopedFrame(ScopedFrame&& frame);
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~ScopedFrame();
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private:
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PaintContext& context_;
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SkCanvas* canvas_;
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std::string trace_file_name_;
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std::unique_ptr<SkPictureRecorder> trace_recorder_;
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const bool instrumentation_enabled_;
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ScopedFrame(PaintContext& context, SkCanvas& canvas);
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ScopedFrame(PaintContext& context,
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const std::string& trace_file_name,
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gfx::Size frame_size);
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friend class PaintContext;
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DISALLOW_COPY_AND_ASSIGN(ScopedFrame);
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};
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PaintContext();
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~PaintContext();
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ScopedFrame AcquireFrame(SkCanvas& canvas);
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ScopedFrame AcquireFrame(const std::string& trace_file_name,
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gfx::Size frame_size);
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const instrumentation::Counter& frame_count() const { return frame_count_; }
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const instrumentation::Stopwatch& frame_time() const { return frame_time_; }
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instrumentation::Stopwatch& engine_time() { return engine_time_; };
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private:
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instrumentation::Counter frame_count_;
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instrumentation::Stopwatch frame_time_;
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instrumentation::Stopwatch engine_time_;
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void beginFrame(ScopedFrame& frame, bool enableInstrumentation);
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void endFrame(ScopedFrame& frame, bool enableInstrumentation);
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DISALLOW_COPY_AND_ASSIGN(PaintContext);
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};
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} // namespace compositor
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} // namespace sky
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#endif // SKY_COMPOSITOR_PAINT_CONTEXT_H_
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