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      1 /*
      2  * Copyright (C) 2010 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 /* Android Effect implementation */
     18 
     19 #include "sles_allinclusive.h"
     20 
     21 #include <system/audio.h>
     22 
     23 static SLresult IAndroidEffect_CreateEffect(SLAndroidEffectItf self,
     24         SLInterfaceID effectImplementationId) {
     25 
     26     SL_ENTER_INTERFACE
     27 
     28     IAndroidEffect *thiz = (IAndroidEffect *) self;
     29     if (SL_OBJECTID_AUDIOPLAYER == IObjectToObjectID(thiz->mThis)) {
     30         CAudioPlayer *ap = (CAudioPlayer *)thiz->mThis;
     31         if (ap->mAudioTrack != 0) {
     32             result = android_genericFx_createEffect(thiz, effectImplementationId, ap->mSessionId);
     33         } else {
     34             result = SL_RESULT_RESOURCE_ERROR;
     35         }
     36     } else if (SL_OBJECTID_OUTPUTMIX == IObjectToObjectID(thiz->mThis)) {
     37         result = android_genericFx_createEffect(thiz, effectImplementationId,
     38                 AUDIO_SESSION_OUTPUT_MIX);
     39     } else {
     40         // the interface itself is invalid because it is not attached to an AudioPlayer or
     41         // an OutputMix
     42         result = SL_RESULT_PARAMETER_INVALID;
     43     }
     44 
     45     SL_LEAVE_INTERFACE
     46 }
     47 
     48 
     49 static SLresult IAndroidEffect_ReleaseEffect(SLAndroidEffectItf self,
     50         SLInterfaceID effectImplementationId) {
     51 
     52     SL_ENTER_INTERFACE
     53 
     54     IAndroidEffect *thiz = (IAndroidEffect *) self;
     55     result = android_genericFx_releaseEffect(thiz, effectImplementationId);
     56 
     57     SL_LEAVE_INTERFACE
     58 }
     59 
     60 
     61 static SLresult IAndroidEffect_SetEnabled(SLAndroidEffectItf self,
     62         SLInterfaceID effectImplementationId, SLboolean enabled) {
     63 
     64     SL_ENTER_INTERFACE
     65 
     66     IAndroidEffect *thiz = (IAndroidEffect *) self;
     67     result = android_genericFx_setEnabled(thiz, effectImplementationId, enabled);
     68 
     69     SL_LEAVE_INTERFACE
     70 }
     71 
     72 
     73 static SLresult IAndroidEffect_IsEnabled(SLAndroidEffectItf self,
     74         SLInterfaceID effectImplementationId, SLboolean * pEnabled) {
     75 
     76     SL_ENTER_INTERFACE
     77 
     78     IAndroidEffect *thiz = (IAndroidEffect *) self;
     79     result = android_genericFx_isEnabled(thiz, effectImplementationId, pEnabled);
     80 
     81     SL_LEAVE_INTERFACE
     82 }
     83 
     84 
     85 static SLresult IAndroidEffect_SendCommand(SLAndroidEffectItf self,
     86         SLInterfaceID effectImplementationId, SLuint32 command, SLuint32 commandSize,
     87         void* pCommand, SLuint32 *replySize, void *pReply) {
     88 
     89     SL_ENTER_INTERFACE
     90 
     91     IAndroidEffect *thiz = (IAndroidEffect *) self;
     92     result = android_genericFx_sendCommand(thiz, effectImplementationId, command, commandSize,
     93             pCommand, replySize, pReply);
     94 
     95     SL_LEAVE_INTERFACE
     96 }
     97 
     98 
     99 static const struct SLAndroidEffectItf_ IAndroidEffect_Itf = {
    100         IAndroidEffect_CreateEffect,
    101         IAndroidEffect_ReleaseEffect,
    102         IAndroidEffect_SetEnabled,
    103         IAndroidEffect_IsEnabled,
    104         IAndroidEffect_SendCommand
    105 };
    106 
    107 void IAndroidEffect_init(void *self)
    108 {
    109     IAndroidEffect *thiz = (IAndroidEffect *) self;
    110     thiz->mItf = &IAndroidEffect_Itf;
    111     thiz->mEffects = new android::KeyedVector<SLuint32, android::AudioEffect* >();
    112 }
    113 
    114 void IAndroidEffect_deinit(void *self)
    115 {
    116     IAndroidEffect *thiz = (IAndroidEffect *) self;
    117     if (NULL != thiz->mEffects) {
    118         if (!thiz->mEffects->isEmpty()) {
    119             for (size_t i = 0 ; i < thiz->mEffects->size() ; i++) {
    120                 delete thiz->mEffects->valueAt(i);
    121             }
    122             thiz->mEffects->clear();
    123         }
    124         delete thiz->mEffects;
    125         thiz->mEffects = NULL;
    126     }
    127 }
    128