AIDL libaudiohal: adding EffectHalAidl implementation

Bug: 258124419
Test: Build, AIDL not enabled in libaudiohal yet.
Change-Id: I887076b0a54fb9c9153e964b53c91b26057b62a7
diff --git a/media/libaudiohal/impl/EffectConversionHelperAidl.h b/media/libaudiohal/impl/EffectConversionHelperAidl.h
new file mode 100644
index 0000000..5d7c1d6
--- /dev/null
+++ b/media/libaudiohal/impl/EffectConversionHelperAidl.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2023 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.
+ */
+
+#pragma once
+
+#include <cstddef>
+#include <map>
+#include <memory>
+#include <utils/Errors.h>
+
+#include <aidl/android/hardware/audio/effect/IEffect.h>
+
+#include <media/AidlConversionNdk.h>
+#include <system/audio_effect.h>
+#include <system/audio_effects/effect_aec.h>
+#include <system/audio_effects/effect_downmix.h>
+#include <system/audio_effects/effect_dynamicsprocessing.h>
+#include <system/audio_effects/effect_hapticgenerator.h>
+#include <system/audio_effects/effect_ns.h>
+#include <system/audio_effects/effect_visualizer.h>
+
+namespace android {
+namespace effect {
+
+static const size_t kEffectParamSize = sizeof(effect_param_t);
+static const size_t kEffectConfigSize = sizeof(effect_config_t);
+
+class EffectConversionHelperAidl {
+  protected:
+    EffectConversionHelperAidl(
+            std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect> effect,
+            int32_t sessionId, int32_t ioId, ::aidl::android::media::audio::common::AudioUuid uuid)
+        : mSessionId(sessionId),
+          mIoId(ioId),
+          mTypeUuid(std::move(uuid)),
+          mEffect(std::move(effect)) {}
+
+    status_t handleCommand(uint32_t cmdCode, uint32_t cmdSize, void* pCmdData, uint32_t* replySize,
+                           void* pReplyData);
+
+  private:
+    const int32_t mSessionId;
+    const int32_t mIoId;
+    ::aidl::android::media::audio::common::AudioUuid mTypeUuid;
+    const std::shared_ptr<::aidl::android::hardware::audio::effect::IEffect> mEffect;
+
+    // command handler map
+    typedef status_t (EffectConversionHelperAidl::*CommandHandler)(uint32_t /* cmdSize */,
+                                                                   const void* /* pCmdData */,
+                                                                   uint32_t* /* replySize */,
+                                                                   void* /* pReplyData */);
+    static const std::map<uint32_t /* effect_command_e */, CommandHandler> mCommandHandlerMap;
+
+    // parameter set/get handler map
+    typedef status_t (EffectConversionHelperAidl::*SetParameter)(const effect_param_t& param);
+    typedef status_t (EffectConversionHelperAidl::*GetParameter)(effect_param_t& param);
+    static const std::map<::aidl::android::media::audio::common::AudioUuid /* TypeUUID */,
+                          std::pair<SetParameter, GetParameter>>
+            mParameterHandlerMap;
+
+    // align to 32 bit boundary
+    static constexpr size_t padding(size_t size) {
+        return ((size - 1) / sizeof(int) + 1) * sizeof(int);
+    }
+    static constexpr bool validatePVsize(const effect_param_t& param, size_t p, size_t v) {
+        return padding(param.psize) == p && param.vsize == v;
+    }
+    static constexpr bool validateCommandSize(const effect_param_t& param, size_t size) {
+        return padding(param.psize) + param.vsize + kEffectParamSize <= size;
+    }
+
+    status_t handleInit(uint32_t cmdSize, const void* pCmdData, uint32_t* replySize,
+                        void* pReplyData);
+    status_t handleSetParameter(uint32_t cmdSize, const void* pCmdData, uint32_t* replySize,
+                                void* pReplyData);
+    status_t handleGetParameter(uint32_t cmdSize, const void* pCmdData, uint32_t* replySize,
+                                void* pReplyData);
+    status_t handleSetConfig(uint32_t cmdSize, const void* pCmdData, uint32_t* replySize,
+                             void* pReplyData);
+    status_t handleGetConfig(uint32_t cmdSize, const void* pCmdData, uint32_t* replySize,
+                             void* pReplyData);
+    status_t handleEnable(uint32_t cmdSize, const void* pCmdData, uint32_t* replySize,
+                          void* pReplyData);
+    status_t handleDisable(uint32_t cmdSize, const void* pCmdData, uint32_t* replySize,
+                           void* pReplyData);
+    status_t handleReset(uint32_t cmdSize, const void* pCmdData, uint32_t* replySize,
+                         void* pReplyData);
+    status_t handleSetDevice(uint32_t cmdSize, const void* pCmdData, uint32_t* replySize,
+                             void* pReplyData);
+    status_t handleSetVolume(uint32_t cmdSize, const void* pCmdData, uint32_t* replySize,
+                             void* pReplyData);
+    status_t handleSetOffload(uint32_t cmdSize, const void* pCmdData, uint32_t* replySize,
+                              void* pReplyData);
+    status_t handleFirstPriority(uint32_t cmdSize, const void* pCmdData, uint32_t* replySize,
+                                 void* pReplyData);
+
+    // AEC parameter handler
+    status_t setAecParameter(const effect_param_t& param);
+    status_t getAecParameter(effect_param_t& param);
+};
+
+}  // namespace effect
+}  // namespace android