mirror of
https://github.com/encounter/engine.git
synced 2026-03-30 11:09:55 -07:00
Jim Graham
85953615eb
Currently helps primarily on iOS when no BackdropFilter is present by lowering energy usage
75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
// Copyright 2013 The Flutter 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 FLUTTER_SHELL_COMMON_SURFACE_H_
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#define FLUTTER_SHELL_COMMON_SURFACE_H_
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#include <memory>
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#include "flutter/flow/compositor_context.h"
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#include "flutter/flow/embedded_views.h"
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#include "flutter/fml/macros.h"
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#include "third_party/skia/include/core/SkCanvas.h"
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namespace flutter {
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/// Represents a Frame that has been fully configured for the underlying client
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/// rendering API. A frame may only be submitted once.
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class SurfaceFrame {
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public:
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using SubmitCallback =
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std::function<bool(const SurfaceFrame& surface_frame, SkCanvas* canvas)>;
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SurfaceFrame(sk_sp<SkSurface> surface,
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bool supports_readback,
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const SubmitCallback& submit_callback);
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~SurfaceFrame();
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bool Submit();
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SkCanvas* SkiaCanvas();
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sk_sp<SkSurface> SkiaSurface() const;
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bool supports_readback() { return supports_readback_; }
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private:
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bool submitted_;
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sk_sp<SkSurface> surface_;
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bool supports_readback_;
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SubmitCallback submit_callback_;
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bool PerformSubmit();
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FML_DISALLOW_COPY_AND_ASSIGN(SurfaceFrame);
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};
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/// Abstract Base Class that represents where we will be rendering content.
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class Surface {
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public:
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Surface();
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virtual ~Surface();
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virtual bool IsValid() = 0;
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virtual std::unique_ptr<SurfaceFrame> AcquireFrame(const SkISize& size) = 0;
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virtual SkMatrix GetRootTransformation() const = 0;
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virtual GrContext* GetContext() = 0;
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virtual flutter::ExternalViewEmbedder* GetExternalViewEmbedder();
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virtual bool MakeRenderContextCurrent();
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private:
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FML_DISALLOW_COPY_AND_ASSIGN(Surface);
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};
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} // namespace flutter
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#endif // FLUTTER_SHELL_COMMON_SURFACE_H_
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