56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
/*
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* Copyright 2021 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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*/
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#pragma once
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#include <android-base/macros.h>
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#include <ui/GraphicBuffer.h>
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namespace android::renderengine {
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class RenderEngine;
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/**
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* Manages GPU image resources on behalf of clients using RenderEngine.
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*
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* Clients of RenderEngine are required to wrap their GraphicBuffer objects as an ExternalTexture,
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* which is then mapped into GPU resources required by RenderEngine. When a client no longer needs
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* to use the GraphicBuffer as input into RenderEngine::drawLayers, then the client should delete
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* their ExternalTexture so that resources may be freed.
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*/
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class ExternalTexture {
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public:
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ExternalTexture() = default;
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virtual ~ExternalTexture() = default;
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virtual bool hasSameBuffer(const ExternalTexture& other) const = 0;
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virtual uint32_t getWidth() const = 0;
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virtual uint32_t getHeight() const = 0;
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virtual uint64_t getId() const = 0;
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virtual PixelFormat getPixelFormat() const = 0;
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virtual uint64_t getUsage() const = 0;
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// Retrieves the buffer that is bound to this texture.
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virtual const sp<GraphicBuffer>& getBuffer() const = 0;
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Rect getBounds() const {
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return {0, 0, static_cast<int32_t>(getWidth()), static_cast<int32_t>(getHeight())};
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}
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DISALLOW_COPY_AND_ASSIGN(ExternalTexture);
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};
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} // namespace android::renderengine
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