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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 /* PresetReverb implementation */
     18 
     19 #include "sles_allinclusive.h"
     20 
     21 #if defined(ANDROID)
     22 /**
     23  * returns true if this interface is not associated with an initialized PresetReverb effect
     24  */
     25 static inline bool NO_PRESETREVERB(IPresetReverb* ipr) {
     26     return (ipr->mPresetReverbEffect == 0);
     27 }
     28 #endif
     29 
     30 static SLresult IPresetReverb_SetPreset(SLPresetReverbItf self, SLuint16 preset)
     31 {
     32     SL_ENTER_INTERFACE
     33 
     34     IPresetReverb *thiz = (IPresetReverb *) self;
     35     switch (preset) {
     36     case SL_REVERBPRESET_NONE:
     37     case SL_REVERBPRESET_SMALLROOM:
     38     case SL_REVERBPRESET_MEDIUMROOM:
     39     case SL_REVERBPRESET_LARGEROOM:
     40     case SL_REVERBPRESET_MEDIUMHALL:
     41     case SL_REVERBPRESET_LARGEHALL:
     42     case SL_REVERBPRESET_PLATE:
     43         interface_lock_exclusive(thiz);
     44         thiz->mPreset = preset;
     45 #if !defined(ANDROID)
     46         result = SL_RESULT_SUCCESS;
     47 #else
     48         if (NO_PRESETREVERB(thiz)) {
     49             result = SL_RESULT_CONTROL_LOST;
     50         } else {
     51             android::status_t status = android_prev_setPreset(thiz->mPresetReverbEffect, preset);
     52             result = android_fx_statusToResult(status);
     53         }
     54 #endif
     55         interface_unlock_exclusive(thiz);
     56         break;
     57     default:
     58         result = SL_RESULT_PARAMETER_INVALID;
     59         break;
     60     }
     61 
     62     SL_LEAVE_INTERFACE
     63 }
     64 
     65 static SLresult IPresetReverb_GetPreset(SLPresetReverbItf self, SLuint16 *pPreset)
     66 {
     67     SL_ENTER_INTERFACE
     68 
     69     if (NULL == pPreset) {
     70         result = SL_RESULT_PARAMETER_INVALID;
     71     } else {
     72         IPresetReverb *thiz = (IPresetReverb *) self;
     73         interface_lock_shared(thiz);
     74         SLuint16 preset = SL_REVERBPRESET_NONE;
     75 #if !defined(ANDROID)
     76         preset = thiz->mPreset;
     77         result = SL_RESULT_SUCCESS;
     78 #else
     79         if (NO_PRESETREVERB(thiz)) {
     80             preset = thiz->mPreset;
     81             result = SL_RESULT_CONTROL_LOST;
     82         } else {
     83             android::status_t status = android_prev_getPreset(thiz->mPresetReverbEffect, &preset);
     84             result = android_fx_statusToResult(status);
     85         }
     86         // OpenSL ES 1.0.1 spec and conformance test do not permit SL_RESULT_CONTROL_LOST
     87         if (SL_RESULT_CONTROL_LOST == result) {
     88             result = SL_RESULT_SUCCESS;
     89         }
     90 #endif
     91         interface_unlock_shared(thiz);
     92         *pPreset = preset;
     93     }
     94 
     95     SL_LEAVE_INTERFACE
     96 }
     97 
     98 static const struct SLPresetReverbItf_ IPresetReverb_Itf = {
     99     IPresetReverb_SetPreset,
    100     IPresetReverb_GetPreset
    101 };
    102 
    103 void IPresetReverb_init(void *self)
    104 {
    105     IPresetReverb *thiz = (IPresetReverb *) self;
    106     thiz->mItf = &IPresetReverb_Itf;
    107     thiz->mPreset = SL_REVERBPRESET_NONE;
    108 #if defined(ANDROID)
    109     memset(&thiz->mPresetReverbDescriptor, 0, sizeof(effect_descriptor_t));
    110     // placement new (explicit constructor)
    111     (void) new (&thiz->mPresetReverbEffect) android::sp<android::AudioEffect>();
    112 #endif
    113 }
    114 
    115 void IPresetReverb_deinit(void *self)
    116 {
    117 #if defined(ANDROID)
    118     IPresetReverb *thiz = (IPresetReverb *) self;
    119     // explicit destructor
    120     thiz->mPresetReverbEffect.~sp();
    121 #endif
    122 }
    123 
    124 bool IPresetReverb_Expose(void *self)
    125 {
    126 #if defined(ANDROID)
    127     IPresetReverb *thiz = (IPresetReverb *) self;
    128     if (!android_fx_initEffectDescriptor(SL_IID_PRESETREVERB, &thiz->mPresetReverbDescriptor)) {
    129         SL_LOGE("PresetReverb initialization failed.");
    130         return false;
    131     }
    132 #endif
    133     return true;
    134 }
    135