Merge changes Ia63685ac,I9c32ac17,I6ca17dda into main (a559a12b) · Commits · e / os / platform_frameworks_native

libs/bufferstreams/aidl/Android.bp

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		// Copyright (C) 2024 The Android Open Source Project
		//
		// Licensed under the Apache License, Version 2.0 (the "License");
		// you may not use this file except in compliance with the License.
		// You may obtain a copy of the License at
		//
		// http://www.apache.org/licenses/LICENSE-2.0
		//
		// Unless required by applicable law or agreed to in writing, software
		// distributed under the License is distributed on an "AS IS" BASIS,
		// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		// See the License for the specific language governing permissions and
		// limitations under the License.

		aidl_interface {
		name: "android.graphics.bufferstreams",
		unstable: true,
		flags: ["-Werror"],
		srcs: ["android/graphics/bufferstreams/*.aidl"],
		headers: [
		"HardwareBuffer_aidl",
		],
		imports: [
		"android.hardware.common-V2",
		],
		backend: {
		cpp: {
		enabled: false,
		},
		java: {
		enabled: false,
		},
		ndk: {
		enabled: false,
		},
		rust: {
		enabled: true,
		additional_rustlibs: [
		"libnativewindow_rs",
		],
		},
		},
		}

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		/*
		* Copyright (C) 2024 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package android.graphics.bufferstreams;

		import android.graphics.bufferstreams.IBufferOwner;
		import android.hardware.HardwareBuffer;

		// Single mapping between a buffer reference and heavy-weight data (like the
		// buffer itself) and data that is stable between frames.
		parcelable BufferAttachment {
		// The HardwareBuffer itself.
		//
		// This field is @nullable for codegen, since HardwareBuffer doesn't implement Default in Rust.
		// In practice, it should never be null.
		@nullable HardwareBuffer buffer;
		// The buffer owner to which this buffer should be returned.
		IBufferOwner owner;
		}

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		/*
		* Copyright (C) 2024 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package android.graphics.bufferstreams;

		import android.graphics.bufferstreams.BufferAttachment;

		// A event that changes the state downstream buffer caches. Clients are responsible for forwarding
		// these messages to their clients.
		union BufferCacheUpdate {
		// Event requiring downstream caches to add new entries.
		CacheBuffers cacheBuffers;
		// Event requiring downstream caches to remove entries.
		ForgetBuffers forgetBuffers;

		parcelable CacheBuffers {
		// Attachments to add.
		List<BufferAttachment> attachments;
		}

		parcelable ForgetBuffers {
		// References to remove.
		long[] bufferIds;
		}
		}

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		/*
		* Copyright (C) 2024 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package android.graphics.bufferstreams;

		import android.os.ParcelFileDescriptor;

		// A Frame represents a single buffer passing through the stream.
		parcelable Frame {
		// The service must have provided an associated BufferAttachment and the client is required to
		// maintain a cache between the two.
		long bufferId;
		// The expected present time of this frame, or -1 if immediate.
		long presentTimeNs;
		// The acquire fence of the buffer for this frame.
		@nullable ParcelFileDescriptor fence;
		}

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		/*
		* Copyright (C) 2024 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package android.graphics.bufferstreams;

		import android.os.ParcelFileDescriptor;

		// Interface from a client back to the owner of a buffer.
		interface IBufferOwner {
		// Called when the buffer is done being processed by the stream to return its owner.
		oneway void onBufferReleased(in long bufferId, in @nullable ParcelFileDescriptor releaseFence);
		}