IBassBoost.c revision 8b565a4139cb37b0682b44cf9a16525ebf6c2058 
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/* BassBoost implementation */
18
19#include "sles_allinclusive.h"
20#ifdef ANDROID
21#include "media/EffectBassBoostApi.h"
22#endif
23
24#define BASSBOOST_STRENGTH_MIN 0
25#define BASSBOOST_STRENGTH_MAX 1000
26
27
28#if defined(ANDROID)
29/**
30 * returns true if this interface is not associated with an initialized BassBoost effect
31 */
32static inline bool NO_BASSBOOST(IBassBoost* v) {
33    return (v->mBassBoostEffect == 0);
34}
35#endif
36
37
38static SLresult IBassBoost_SetEnabled(SLBassBoostItf self, SLboolean enabled)
39{
40    SL_ENTER_INTERFACE
41
42    IBassBoost *thiz = (IBassBoost *) self;
43    interface_lock_exclusive(thiz);
44    thiz->mEnabled = (SLboolean) enabled;
45#if !defined(ANDROID)
46    result = SL_RESULT_SUCCESS;
47#else
48    if (NO_BASSBOOST(thiz)) {
49        result = SL_RESULT_CONTROL_LOST;
50    } else {
51        android::status_t status = thiz->mBassBoostEffect->setEnabled((bool) thiz->mEnabled);
52        result = android_fx_statusToResult(status);
53    }
54#endif
55    interface_unlock_exclusive(thiz);
56
57    SL_LEAVE_INTERFACE
58}
59
60
61static SLresult IBassBoost_IsEnabled(SLBassBoostItf self, SLboolean *pEnabled)
62{
63    SL_ENTER_INTERFACE
64
65    if (NULL == pEnabled) {
66        result = SL_RESULT_PARAMETER_INVALID;
67    } else {
68        IBassBoost *thiz = (IBassBoost *) self;
69        interface_lock_exclusive(thiz);
70        SLboolean enabled = thiz->mEnabled;
71#if !defined(ANDROID)
72        *pEnabled = enabled;
73        result = SL_RESULT_SUCCESS;
74#else
75        if (NO_BASSBOOST(thiz)) {
76            result = SL_RESULT_CONTROL_LOST;
77        } else {
78            *pEnabled = (SLboolean) thiz->mBassBoostEffect->getEnabled();
79            result = SL_RESULT_SUCCESS;
80        }
81#endif
82        interface_unlock_exclusive(thiz);
83    }
84
85    SL_LEAVE_INTERFACE
86}
87
88
89static SLresult IBassBoost_SetStrength(SLBassBoostItf self, SLpermille strength)
90{
91    SL_ENTER_INTERFACE
92
93    if ((BASSBOOST_STRENGTH_MIN > strength) || (BASSBOOST_STRENGTH_MAX < strength)) {
94        result = SL_RESULT_PARAMETER_INVALID;
95    } else {
96        IBassBoost *thiz = (IBassBoost *) self;
97        interface_lock_exclusive(thiz);
98#if !defined(ANDROID)
99        thiz->mStrength = strength;
100        result = SL_RESULT_SUCCESS;
101#else
102        if (NO_BASSBOOST(thiz)) {
103            result = SL_RESULT_CONTROL_LOST;
104        } else {
105            android::status_t status =
106                android_bb_setParam(thiz->mBassBoostEffect, BASSBOOST_PARAM_STRENGTH, &strength);
107            result = android_fx_statusToResult(status);
108        }
109#endif
110        interface_unlock_exclusive(thiz);
111    }
112
113    SL_LEAVE_INTERFACE
114}
115
116
117static SLresult IBassBoost_GetRoundedStrength(SLBassBoostItf self, SLpermille *pStrength)
118{
119    SL_ENTER_INTERFACE
120
121    if (NULL == pStrength) {
122        result = SL_RESULT_PARAMETER_INVALID;
123    } else {
124        IBassBoost *thiz = (IBassBoost *) self;
125        interface_lock_exclusive(thiz);
126        SLpermille strength = thiz->mStrength;;
127#if !defined(ANDROID)
128        result = SL_RESULT_SUCCESS;
129#else
130        if (NO_BASSBOOST(thiz)) {
131            result = SL_RESULT_CONTROL_LOST;
132        } else {
133            android::status_t status =
134                   android_bb_getParam(thiz->mBassBoostEffect, BASSBOOST_PARAM_STRENGTH, &strength);
135            result = android_fx_statusToResult(status);
136        }
137#endif
138        interface_unlock_exclusive(thiz);
139        *pStrength = strength;
140    }
141
142    SL_LEAVE_INTERFACE
143}
144
145
146static SLresult IBassBoost_IsStrengthSupported(SLBassBoostItf self, SLboolean *pSupported)
147{
148    SL_ENTER_INTERFACE
149
150    if (NULL == pSupported) {
151        result = SL_RESULT_PARAMETER_INVALID;
152    } else {
153#if !defined(ANDROID)
154        *pSupported = SL_BOOLEAN_TRUE;
155        result = SL_RESULT_SUCCESS;
156#else
157        IBassBoost *thiz = (IBassBoost *) self;
158        int32_t supported = 0;
159        interface_lock_exclusive(thiz);
160        if (NO_BASSBOOST(thiz)) {
161            result = SL_RESULT_CONTROL_LOST;
162        } else {
163            android::status_t status =
164                android_bb_getParam(thiz->mBassBoostEffect, BASSBOOST_PARAM_STRENGTH_SUPPORTED,
165                        &supported);
166            result = android_fx_statusToResult(status);
167        }
168        interface_unlock_exclusive(thiz);
169        *pSupported = (SLboolean) (supported != 0);
170#endif
171    }
172
173    SL_LEAVE_INTERFACE
174}
175
176
177static const struct SLBassBoostItf_ IBassBoost_Itf = {
178    IBassBoost_SetEnabled,
179    IBassBoost_IsEnabled,
180    IBassBoost_SetStrength,
181    IBassBoost_GetRoundedStrength,
182    IBassBoost_IsStrengthSupported
183};
184
185void IBassBoost_init(void *self)
186{
187    IBassBoost *thiz = (IBassBoost *) self;
188    thiz->mItf = &IBassBoost_Itf;
189    thiz->mEnabled = SL_BOOLEAN_FALSE;
190    thiz->mStrength = 0;
191#if defined(ANDROID)
192    memset(&thiz->mBassBoostDescriptor, 0, sizeof(effect_descriptor_t));
193    // placement new (explicit constructor)
194    (void) new (&thiz->mBassBoostEffect) android::sp<android::AudioEffect>();
195#endif
196}
197
198void IBassBoost_deinit(void *self)
199{
200#if defined(ANDROID)
201    IBassBoost *thiz = (IBassBoost *) self;
202    // explicit destructor
203    thiz->mBassBoostEffect.~sp();
204#endif
205}
206
207bool IBassBoost_Expose(void *self)
208{
209#if defined(ANDROID)
210    IBassBoost *thiz = (IBassBoost *) self;
211    if (!android_fx_initEffectDescriptor(SL_IID_BASSBOOST, &thiz->mBassBoostDescriptor)) {
212        SL_LOGE("BassBoost initialization failed.");
213        return false;
214    }
215#endif
216    return true;
217}
218