libaudioHAL: reduce version specific code am: 00538f18b8
am: ddfa210b93
Change-Id: I231a5f2a351157dce8884f5e1093fdef1671c5d0
diff --git a/media/libaudiohal/Android.bp b/media/libaudiohal/Android.bp
index 5e22322..5837fcf 100644
--- a/media/libaudiohal/Android.bp
+++ b/media/libaudiohal/Android.bp
@@ -13,12 +13,6 @@
],
shared_libs: [
- "android.hardware.audio.effect@2.0",
- "android.hardware.audio.effect@4.0",
- "android.hardware.audio.effect@5.0",
- "android.hardware.audio@2.0",
- "android.hardware.audio@4.0",
- "android.hardware.audio@5.0",
"libaudiohal@2.0",
"libaudiohal@4.0",
"libaudiohal@5.0",
@@ -26,7 +20,8 @@
],
header_libs: [
- "libaudiohal_headers"
+ "libaudiohal_headers",
+ "libbase_headers",
]
}
diff --git a/media/libaudiohal/DevicesFactoryHalInterface.cpp b/media/libaudiohal/DevicesFactoryHalInterface.cpp
index 5068d23..d5336fa 100644
--- a/media/libaudiohal/DevicesFactoryHalInterface.cpp
+++ b/media/libaudiohal/DevicesFactoryHalInterface.cpp
@@ -22,10 +22,8 @@
// static
sp<DevicesFactoryHalInterface> DevicesFactoryHalInterface::create() {
- return V5_0::createDevicesFactoryHal() ?:
- V4_0::createDevicesFactoryHal() ?:
- V2_0::createDevicesFactoryHal() ?:
- nullptr;
+ return createPreferedImpl<DevicesFactoryHalInterface>();
}
} // namespace android
+
diff --git a/media/libaudiohal/EffectsFactoryHalInterface.cpp b/media/libaudiohal/EffectsFactoryHalInterface.cpp
index 1cbe5e6..d15b14e 100644
--- a/media/libaudiohal/EffectsFactoryHalInterface.cpp
+++ b/media/libaudiohal/EffectsFactoryHalInterface.cpp
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2016 The Android Open Source Project
+ * 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.
@@ -14,20 +14,15 @@
* limitations under the License.
*/
-#include <android/hardware/audio/effect/2.0/IEffectsFactory.h>
-#include <android/hardware/audio/effect/4.0/IEffectsFactory.h>
-#include <android/hardware/audio/effect/5.0/IEffectsFactory.h>
-
#include <libaudiohal/FactoryHalHidl.h>
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+
namespace android {
// static
sp<EffectsFactoryHalInterface> EffectsFactoryHalInterface::create() {
- return effect::V5_0::createEffectsFactoryHal() ?:
- effect::V4_0::createEffectsFactoryHal() ?:
- effect::V2_0::createEffectsFactoryHal() ?:
- nullptr;
+ return createPreferedImpl<EffectsFactoryHalInterface>();
}
// static
diff --git a/media/libaudiohal/impl/DevicesFactoryHalHybrid.cpp b/media/libaudiohal/impl/DevicesFactoryHalHybrid.cpp
index 3f68d07..0e1f1bb 100644
--- a/media/libaudiohal/impl/DevicesFactoryHalHybrid.cpp
+++ b/media/libaudiohal/impl/DevicesFactoryHalHybrid.cpp
@@ -17,9 +17,10 @@
#define LOG_TAG "DevicesFactoryHalHybrid"
//#define LOG_NDEBUG 0
+#include "DevicesFactoryHalHidl.h"
#include "DevicesFactoryHalHybrid.h"
#include "DevicesFactoryHalLocal.h"
-#include "DevicesFactoryHalHidl.h"
+#include <libaudiohal/FactoryHalHidl.h>
namespace android {
namespace CPP_VERSION {
@@ -36,6 +37,12 @@
}
return mLocalFactory->openDevice(name, device);
}
-
} // namespace CPP_VERSION
+
+template <>
+sp<DevicesFactoryHalInterface> createFactoryHal<AudioHALVersion::CPP_VERSION>() {
+ auto service = hardware::audio::CPP_VERSION::IDevicesFactory::getService();
+ return service ? new CPP_VERSION::DevicesFactoryHalHybrid(service) : nullptr;
+}
+
} // namespace android
diff --git a/media/libaudiohal/impl/DevicesFactoryHalHybrid.h b/media/libaudiohal/impl/DevicesFactoryHalHybrid.h
index 8b335a3..545bb70 100644
--- a/media/libaudiohal/impl/DevicesFactoryHalHybrid.h
+++ b/media/libaudiohal/impl/DevicesFactoryHalHybrid.h
@@ -41,11 +41,6 @@
sp<DevicesFactoryHalInterface> mHidlFactory;
};
-sp<DevicesFactoryHalInterface> createDevicesFactoryHal() {
- auto service = IDevicesFactory::getService();
- return service ? new DevicesFactoryHalHybrid(service) : nullptr;
-}
-
} // namespace CPP_VERSION
} // namespace android
diff --git a/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp b/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp
index 42280a3..ba7b195 100644
--- a/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp
+++ b/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp
@@ -19,11 +19,12 @@
#include <cutils/native_handle.h>
-#include "EffectsFactoryHalHidl.h"
#include "ConversionHelperHidl.h"
#include "EffectBufferHalHidl.h"
#include "EffectHalHidl.h"
+#include "EffectsFactoryHalHidl.h"
#include "HidlUtils.h"
+#include <libaudiohal/FactoryHalHidl.h>
using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
using ::android::hardware::Return;
@@ -145,4 +146,11 @@
} // namespace CPP_VERSION
} // namespace effect
+
+template<>
+sp<EffectsFactoryHalInterface> createFactoryHal<AudioHALVersion::CPP_VERSION>() {
+ auto service = hardware::audio::effect::CPP_VERSION::IEffectsFactory::getService();
+ return service ? new effect::CPP_VERSION::EffectsFactoryHalHidl(service) : nullptr;
+}
+
} // namespace android
diff --git a/media/libaudiohal/impl/EffectsFactoryHalHidl.h b/media/libaudiohal/impl/EffectsFactoryHalHidl.h
index bed4f7e..2828513 100644
--- a/media/libaudiohal/impl/EffectsFactoryHalHidl.h
+++ b/media/libaudiohal/impl/EffectsFactoryHalHidl.h
@@ -65,11 +65,6 @@
status_t queryAllDescriptors();
};
-sp<EffectsFactoryHalInterface> createEffectsFactoryHal() {
- auto service = IEffectsFactory::getService();
- return service ? new EffectsFactoryHalHidl(service) : nullptr;
-}
-
} // namespace CPP_VERSION
} // namespace effect
} // namespace android
diff --git a/media/libaudiohal/impl/include/libaudiohal/FactoryHalHidl.h b/media/libaudiohal/impl/include/libaudiohal/FactoryHalHidl.h
index c7319d0..829f99c 100644
--- a/media/libaudiohal/impl/include/libaudiohal/FactoryHalHidl.h
+++ b/media/libaudiohal/impl/include/libaudiohal/FactoryHalHidl.h
@@ -23,33 +23,42 @@
#include <media/audiohal/EffectsFactoryHalInterface.h>
#include <utils/StrongPointer.h>
+#include <array>
+#include <utility>
+
namespace android {
-namespace effect {
-namespace V2_0 {
-sp<EffectsFactoryHalInterface> createEffectsFactoryHal();
-} // namespace V2_0
+/** Supported HAL versions, in order of preference.
+ * Implementation should use specialize the `create*FactoryHal` for their version.
+ * Client should use `createPreferedImpl<*FactoryHal>()` to instantiate
+ * the preferred available impl.
+ */
+enum class AudioHALVersion {
+ V5_0,
+ V4_0,
+ V2_0,
+ end, // used for iterating over supported versions
+};
-namespace V4_0 {
-sp<EffectsFactoryHalInterface> createEffectsFactoryHal();
-} // namespace V4_0
+/** Template function to fully specialized for each version and each Interface. */
+template <AudioHALVersion, class Interface>
+sp<Interface> createFactoryHal();
-namespace V5_0 {
-sp<EffectsFactoryHalInterface> createEffectsFactoryHal();
-} // namespace V5_0
-} // namespace effect
+/** @Return the preferred available implementation or nullptr if none are available. */
+template <class Interface, AudioHALVersion version = AudioHALVersion{}>
+static sp<Interface> createPreferedImpl() {
+ if constexpr (version == AudioHALVersion::end) {
+ return nullptr; // tried all version, all returned nullptr
+ } else {
+ if (auto created = createFactoryHal<version, Interface>(); created != nullptr) {
+ return created;
+ }
-namespace V2_0 {
-sp<DevicesFactoryHalInterface> createDevicesFactoryHal();
-} // namespace V2_0
+ using Raw = std::underlying_type_t<AudioHALVersion>; // cast as enum class do not support ++
+ return createPreferedImpl<Interface, AudioHALVersion(Raw(version) + 1)>();
+ }
+}
-namespace V4_0 {
-sp<DevicesFactoryHalInterface> createDevicesFactoryHal();
-} // namespace V4_0
-
-namespace V5_0 {
-sp<DevicesFactoryHalInterface> createDevicesFactoryHal();
-} // namespace V5_0
} // namespace android
