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1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #define LOG_TAG "EffectsFactoryHalHidl"
18 //#define LOG_NDEBUG 0
19 
20 #include <cutils/native_handle.h>
21 
22 #include "EffectsFactoryHalHidl.h"
23 #include "ConversionHelperHidl.h"
24 #include "EffectBufferHalHidl.h"
25 #include "EffectHalHidl.h"
26 #include "HidlUtils.h"
27 
28 using ::android::hardware::audio::common::CPP_VERSION::implementation::HidlUtils;
29 using ::android::hardware::Return;
30 
31 namespace android {
32 namespace effect {
33 namespace CPP_VERSION {
34 
35 using namespace ::android::hardware::audio::common::CPP_VERSION;
36 using namespace ::android::hardware::audio::effect::CPP_VERSION;
37 
EffectsFactoryHalHidl()38 EffectsFactoryHalHidl::EffectsFactoryHalHidl() : ConversionHelperHidl("EffectsFactory") {
39     mEffectsFactory = IEffectsFactory::getService();
40     if (mEffectsFactory == 0) {
41         ALOGE("Failed to obtain IEffectsFactory service, terminating process.");
42         exit(1);
43     }
44 }
45 
queryAllDescriptors()46 status_t EffectsFactoryHalHidl::queryAllDescriptors() {
47     if (mEffectsFactory == 0) return NO_INIT;
48     Result retval = Result::NOT_INITIALIZED;
49     Return<void> ret = mEffectsFactory->getAllDescriptors(
50             [&](Result r, const hidl_vec<EffectDescriptor>& result) {
51                 retval = r;
52                 if (retval == Result::OK) {
53                     mLastDescriptors = result;
54                 }
55             });
56     if (ret.isOk()) {
57         return retval == Result::OK ? OK : NO_INIT;
58     }
59     mLastDescriptors.resize(0);
60     return processReturn(__FUNCTION__, ret);
61 }
62 
queryNumberEffects(uint32_t * pNumEffects)63 status_t EffectsFactoryHalHidl::queryNumberEffects(uint32_t *pNumEffects) {
64     status_t queryResult = queryAllDescriptors();
65     if (queryResult == OK) {
66         *pNumEffects = mLastDescriptors.size();
67     }
68     return queryResult;
69 }
70 
getDescriptor(uint32_t index,effect_descriptor_t * pDescriptor)71 status_t EffectsFactoryHalHidl::getDescriptor(
72         uint32_t index, effect_descriptor_t *pDescriptor) {
73     // TODO: We need somehow to track the changes on the server side
74     // or figure out how to convert everybody to query all the descriptors at once.
75     // TODO: check for nullptr
76     if (mLastDescriptors.size() == 0) {
77         status_t queryResult = queryAllDescriptors();
78         if (queryResult != OK) return queryResult;
79     }
80     if (index >= mLastDescriptors.size()) return NAME_NOT_FOUND;
81     EffectHalHidl::effectDescriptorToHal(mLastDescriptors[index], pDescriptor);
82     return OK;
83 }
84 
getDescriptor(const effect_uuid_t * pEffectUuid,effect_descriptor_t * pDescriptor)85 status_t EffectsFactoryHalHidl::getDescriptor(
86         const effect_uuid_t *pEffectUuid, effect_descriptor_t *pDescriptor) {
87     // TODO: check for nullptr
88     if (mEffectsFactory == 0) return NO_INIT;
89     Uuid hidlUuid;
90     HidlUtils::uuidFromHal(*pEffectUuid, &hidlUuid);
91     Result retval = Result::NOT_INITIALIZED;
92     Return<void> ret = mEffectsFactory->getDescriptor(hidlUuid,
93             [&](Result r, const EffectDescriptor& result) {
94                 retval = r;
95                 if (retval == Result::OK) {
96                     EffectHalHidl::effectDescriptorToHal(result, pDescriptor);
97                 }
98             });
99     if (ret.isOk()) {
100         if (retval == Result::OK) return OK;
101         else if (retval == Result::INVALID_ARGUMENTS) return NAME_NOT_FOUND;
102         else return NO_INIT;
103     }
104     return processReturn(__FUNCTION__, ret);
105 }
106 
createEffect(const effect_uuid_t * pEffectUuid,int32_t sessionId,int32_t ioId,sp<EffectHalInterface> * effect)107 status_t EffectsFactoryHalHidl::createEffect(
108         const effect_uuid_t *pEffectUuid, int32_t sessionId, int32_t ioId,
109         sp<EffectHalInterface> *effect) {
110     if (mEffectsFactory == 0) return NO_INIT;
111     Uuid hidlUuid;
112     HidlUtils::uuidFromHal(*pEffectUuid, &hidlUuid);
113     Result retval = Result::NOT_INITIALIZED;
114     Return<void> ret = mEffectsFactory->createEffect(
115             hidlUuid, sessionId, ioId,
116             [&](Result r, const sp<IEffect>& result, uint64_t effectId) {
117                 retval = r;
118                 if (retval == Result::OK) {
119                     *effect = new EffectHalHidl(result, effectId);
120                 }
121             });
122     if (ret.isOk()) {
123         if (retval == Result::OK) return OK;
124         else if (retval == Result::INVALID_ARGUMENTS) return NAME_NOT_FOUND;
125         else return NO_INIT;
126     }
127     return processReturn(__FUNCTION__, ret);
128 }
129 
dumpEffects(int fd)130 status_t EffectsFactoryHalHidl::dumpEffects(int fd) {
131     if (mEffectsFactory == 0) return NO_INIT;
132     native_handle_t* hidlHandle = native_handle_create(1, 0);
133     hidlHandle->data[0] = fd;
134     Return<void> ret = mEffectsFactory->debug(hidlHandle, {} /* options */);
135     native_handle_delete(hidlHandle);
136     return processReturn(__FUNCTION__, ret);
137 }
138 
allocateBuffer(size_t size,sp<EffectBufferHalInterface> * buffer)139 status_t EffectsFactoryHalHidl::allocateBuffer(size_t size, sp<EffectBufferHalInterface>* buffer) {
140     return EffectBufferHalHidl::allocate(size, buffer);
141 }
142 
mirrorBuffer(void * external,size_t size,sp<EffectBufferHalInterface> * buffer)143 status_t EffectsFactoryHalHidl::mirrorBuffer(void* external, size_t size,
144                           sp<EffectBufferHalInterface>* buffer) {
145     return EffectBufferHalHidl::mirror(external, size, buffer);
146 }
147 
148 } // namespace CPP_VERSION
149 } // namespace effect
150 } // namespace android
151