113 lines
3.9 KiB
C++
113 lines
3.9 KiB
C++
/*
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* Copyright 2019 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 <renderengine/ExternalTexture.h>
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#include <ui/Fence.h>
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#include <ui/GraphicTypes.h>
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#include <ui/Size.h>
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#include <utils/Errors.h>
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#include <utils/StrongPointer.h>
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#include <cstdint>
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#include <vector>
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namespace android {
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class GraphicBuffer;
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namespace compositionengine {
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/**
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* Encapsulates everything for composing to a render surface with RenderEngine
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*/
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class RenderSurface {
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public:
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virtual ~RenderSurface();
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// Returns true if the render surface is valid. This is meant to be checked
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// post-construction and prior to use, as not everything is set up by the
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// constructor.
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virtual bool isValid() const = 0;
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// Performs one-time initialization of the render surface. This is meant
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// to be called after the validation check.
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virtual void initialize() = 0;
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// Returns the bounds of the surface
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virtual const ui::Size& getSize() const = 0;
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// Returns whether the surface is protected.
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virtual bool isProtected() const = 0;
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// Gets the latest fence to pass to the HWC to signal that the surface
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// buffer is done rendering
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virtual const sp<Fence>& getClientTargetAcquireFence() const = 0;
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// Sets the size of the surface
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virtual void setDisplaySize(const ui::Size&) = 0;
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// Sets the dataspace used for rendering the surface
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virtual void setBufferDataspace(ui::Dataspace) = 0;
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// Sets the pixel format used for rendering the surface.
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// Changing the pixel format of the buffer will result in buffer
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// reallocation as well as some reconfiguration of the graphics context,
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// which are both expensive operations.
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virtual void setBufferPixelFormat(ui::PixelFormat) = 0;
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// Configures the protected rendering on the surface
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virtual void setProtected(bool useProtected) = 0;
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// Called to signal that rendering has started. 'mustRecompose' should be
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// true if the entire frame must be recomposed.
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virtual status_t beginFrame(bool mustRecompose) = 0;
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// Prepares the frame for rendering
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virtual void prepareFrame(bool usesClientComposition, bool usesDeviceComposition) = 0;
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// Allocates a buffer as scratch space for GPU composition
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virtual std::shared_ptr<renderengine::ExternalTexture> dequeueBuffer(
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base::unique_fd* bufferFence) = 0;
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// RK: Call NativeWindows perform interface
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virtual int perform(int operation, uint64_t usage) = 0;
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// Queues the drawn buffer for consumption by HWC. readyFence is the fence
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// which will fire when the buffer is ready for consumption.
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virtual void queueBuffer(base::unique_fd readyFence) = 0;
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// Called after the HWC calls are made to present the display
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virtual void onPresentDisplayCompleted() = 0;
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// Called after the surface has been rendering to signal the surface should
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// be made ready for displaying
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virtual void flip() = 0;
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// Debugging - Dumps the state of the RenderSurface to a string
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virtual void dump(std::string& result) const = 0;
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// Debugging - gets the page flip count for the RenderSurface
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virtual std::uint32_t getPageFlipCount() const = 0;
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// Returns true if the render surface supports client composition prediction.
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virtual bool supportsCompositionStrategyPrediction() const = 0;
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};
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} // namespace compositionengine
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} // namespace android
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