audiohal: Re-implement effect process using FMQ and IMemory
Result: no hwbinder calls due music processing.
Added IEffect.close method for explicitly freeing up of resources
consumed by the effect before automatic server objects reaping
gets to it.
Added IEffect.setProcessBuffers method for updating the input /
output buffers on the go.
Test: make, use Play Music with effects, check traces
Bug: 30222631
Change-Id: Ia1e1bc7098fab59aa970e0ce4acdb48007409644
diff --git a/audio/effect/2.0/default/AudioBufferManager.h b/audio/effect/2.0/default/AudioBufferManager.h
new file mode 100644
index 0000000..6d65995
--- /dev/null
+++ b/audio/effect/2.0/default/AudioBufferManager.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2017 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 android_hardware_audio_effect_V2_0_AudioBufferManager_H_
+#define android_hardware_audio_effect_V2_0_AudioBufferManager_H_
+
+#include <mutex>
+
+#include <android/hardware/audio/effect/2.0/types.h>
+#include <android/hidl/memory/1.0/IMemory.h>
+#include <system/audio_effect.h>
+#include <utils/RefBase.h>
+#include <utils/KeyedVector.h>
+#include <utils/Singleton.h>
+
+using ::android::hardware::audio::effect::V2_0::AudioBuffer;
+using ::android::hidl::memory::V1_0::IMemory;
+
+namespace android {
+namespace hardware {
+namespace audio {
+namespace effect {
+namespace V2_0 {
+namespace implementation {
+
+class AudioBufferWrapper : public RefBase {
+ public:
+ explicit AudioBufferWrapper(const AudioBuffer& buffer);
+ virtual ~AudioBufferWrapper();
+ bool init();
+ audio_buffer_t* getHalBuffer() { return &mHalBuffer; }
+ private:
+ AudioBufferWrapper(const AudioBufferWrapper&) = delete;
+ void operator=(AudioBufferWrapper) = delete;
+
+ AudioBuffer mHidlBuffer;
+ sp<IMemory> mHidlMemory;
+ audio_buffer_t mHalBuffer;
+};
+
+} // namespace implementation
+} // namespace V2_0
+} // namespace effect
+} // namespace audio
+} // namespace hardware
+} // namespace android
+
+using ::android::hardware::audio::effect::V2_0::implementation::AudioBufferWrapper;
+
+namespace android {
+
+// This class needs to be in 'android' ns because Singleton macros require that.
+class AudioBufferManager : public Singleton<AudioBufferManager> {
+ public:
+ bool wrap(const AudioBuffer& buffer, sp<AudioBufferWrapper>* wrapper);
+
+ private:
+ friend class hardware::audio::effect::V2_0::implementation::AudioBufferWrapper;
+
+ // Called by AudioBufferWrapper.
+ void removeEntry(uint64_t id);
+
+ std::mutex mLock;
+ KeyedVector<uint64_t, wp<AudioBufferWrapper>> mBuffers;
+};
+
+} // namespace android
+
+#endif // android_hardware_audio_effect_V2_0_AudioBufferManager_H_