69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
// Copyright (C) 2022 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <cstdint>
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#include <memory>
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#include <mutex>
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#include <unordered_set>
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namespace gfxstream {
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class DisplaySurface;
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class DisplaySurfaceUser;
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// Base class used for controlling the lifetime of a particular surface
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// used for a display (e.g. EGLSurface or VkSurfaceKHR).
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class DisplaySurfaceImpl {
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public:
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virtual ~DisplaySurfaceImpl() {}
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};
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class DisplaySurface {
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public:
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DisplaySurface(uint32_t width,
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uint32_t height,
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std::unique_ptr<DisplaySurfaceImpl> impl);
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~DisplaySurface();
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DisplaySurface(const DisplaySurface&) = delete;
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DisplaySurface& operator=(const DisplaySurface&) = delete;
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// Return the API specific implementation of a DisplaySurface. This
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// should only be called by API specific components such as DisplayGl
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// or DisplayVk.
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const DisplaySurfaceImpl* getImpl() const { return mImpl.get(); }
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uint32_t getWidth() const;
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uint32_t getHeight() const;
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void updateSize(uint32_t newWidth, uint32_t newHeight);
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private:
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friend class DisplaySurfaceUser;
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void registerUser(DisplaySurfaceUser* user);
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void unregisterUser(DisplaySurfaceUser* user);
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mutable std::mutex mParamsMutex;
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uint32_t mWidth = 0;
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uint32_t mHeight = 0;
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std::unique_ptr<DisplaySurfaceImpl> mImpl;
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std::unordered_set<DisplaySurfaceUser*> mBoundUsers;
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};
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} // namespace gfxstream
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