103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
|
/*
|
||
|
|
**
|
||
|
|
** Copyright 2022, 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef INCLUDING_FROM_AUDIOFLINGER_H
|
||
|
|
#error This header file should only be included from AudioFlinger.h
|
||
|
|
#endif
|
||
|
|
|
||
|
|
class Command;
|
||
|
|
|
||
|
|
// Thread to execute create and release patch commands asynchronously. This is needed because
|
||
|
|
// PatchPanel::createAudioPatch and releaseAudioPatch are executed from audio policy service
|
||
|
|
// with mutex locked and effect management requires to call back into audio policy service
|
||
|
|
class PatchCommandThread : public Thread {
|
||
|
|
public:
|
||
|
|
|
||
|
|
enum {
|
||
|
|
CREATE_AUDIO_PATCH,
|
||
|
|
RELEASE_AUDIO_PATCH,
|
||
|
|
};
|
||
|
|
|
||
|
|
class PatchCommandListener : public virtual RefBase {
|
||
|
|
public:
|
||
|
|
virtual void onCreateAudioPatch(audio_patch_handle_t handle,
|
||
|
|
const PatchPanel::Patch& patch) = 0;
|
||
|
|
virtual void onReleaseAudioPatch(audio_patch_handle_t handle) = 0;
|
||
|
|
};
|
||
|
|
|
||
|
|
PatchCommandThread() : Thread(false /* canCallJava */) {}
|
||
|
|
~PatchCommandThread() override;
|
||
|
|
|
||
|
|
void addListener(const sp<PatchCommandListener>& listener);
|
||
|
|
|
||
|
|
void createAudioPatch(audio_patch_handle_t handle, const PatchPanel::Patch& patch);
|
||
|
|
void releaseAudioPatch(audio_patch_handle_t handle);
|
||
|
|
|
||
|
|
// Thread virtuals
|
||
|
|
void onFirstRef() override;
|
||
|
|
bool threadLoop() override;
|
||
|
|
|
||
|
|
void exit();
|
||
|
|
|
||
|
|
void createAudioPatchCommand(audio_patch_handle_t handle,
|
||
|
|
const PatchPanel::Patch& patch);
|
||
|
|
void releaseAudioPatchCommand(audio_patch_handle_t handle);
|
||
|
|
|
||
|
|
private:
|
||
|
|
class CommandData;
|
||
|
|
|
||
|
|
// Command type received from the PatchPanel
|
||
|
|
class Command: public RefBase {
|
||
|
|
public:
|
||
|
|
Command() = default;
|
||
|
|
Command(int command, const sp<CommandData>& data)
|
||
|
|
: mCommand(command), mData(data) {}
|
||
|
|
|
||
|
|
const int mCommand = -1;
|
||
|
|
const sp<CommandData> mData;
|
||
|
|
};
|
||
|
|
|
||
|
|
class CommandData: public RefBase {};
|
||
|
|
|
||
|
|
class CreateAudioPatchData : public CommandData {
|
||
|
|
public:
|
||
|
|
CreateAudioPatchData(audio_patch_handle_t handle, const PatchPanel::Patch& patch)
|
||
|
|
: mHandle(handle), mPatch(patch) {}
|
||
|
|
|
||
|
|
const audio_patch_handle_t mHandle;
|
||
|
|
const PatchPanel::Patch mPatch;
|
||
|
|
};
|
||
|
|
|
||
|
|
class ReleaseAudioPatchData : public CommandData {
|
||
|
|
public:
|
||
|
|
explicit ReleaseAudioPatchData(audio_patch_handle_t handle)
|
||
|
|
: mHandle(handle) {}
|
||
|
|
|
||
|
|
audio_patch_handle_t mHandle;
|
||
|
|
};
|
||
|
|
|
||
|
|
void sendCommand(const sp<Command>& command);
|
||
|
|
|
||
|
|
std::string mThreadName;
|
||
|
|
std::mutex mLock;
|
||
|
|
std::condition_variable mWaitWorkCV;
|
||
|
|
std::deque<sp<Command>> mCommands GUARDED_BY(mLock); // list of pending commands
|
||
|
|
|
||
|
|
std::mutex mListenerLock;
|
||
|
|
std::vector<wp<PatchCommandListener>> mListeners GUARDED_BY(mListenerLock);
|
||
|
|
};
|