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/*
* Copyright (C) 2010 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.
*/
/* Volume implementation */
#include "sles_allinclusive.h"
static SLresult IVolume_SetVolumeLevel(SLVolumeItf self, SLmillibel level)
{
SL_ENTER_INTERFACE
if (!((SL_MILLIBEL_MIN <= level) && (level <= PLATFORM_MILLIBEL_MAX_VOLUME))) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IVolume *thiz = (IVolume *) self;
interface_lock_exclusive(thiz);
SLmillibel oldLevel = thiz->mLevel;
if (oldLevel != level) {
thiz->mLevel = level;
interface_unlock_exclusive_attributes(thiz, ATTR_GAIN);
} else {
interface_unlock_exclusive(thiz);
}
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IVolume_GetVolumeLevel(SLVolumeItf self, SLmillibel *pLevel)
{
SL_ENTER_INTERFACE
if (NULL == pLevel) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IVolume *thiz = (IVolume *) self;
interface_lock_shared(thiz);
SLmillibel level = thiz->mLevel;
interface_unlock_shared(thiz);
*pLevel = level;
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IVolume_GetMaxVolumeLevel(SLVolumeItf self, SLmillibel *pMaxLevel)
{
SL_ENTER_INTERFACE
if (NULL == pMaxLevel) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
*pMaxLevel = PLATFORM_MILLIBEL_MAX_VOLUME;
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IVolume_SetMute(SLVolumeItf self, SLboolean mute)
{
SL_ENTER_INTERFACE
IVolume *thiz = (IVolume *) self;
mute = SL_BOOLEAN_FALSE != mute; // normalize
interface_lock_exclusive(thiz);
SLboolean oldMute = thiz->mMute;
if (oldMute != mute) {
thiz->mMute = (SLuint8) mute;
interface_unlock_exclusive_attributes(thiz, ATTR_GAIN);
} else {
interface_unlock_exclusive(thiz);
}
result = SL_RESULT_SUCCESS;
SL_LEAVE_INTERFACE
}
static SLresult IVolume_GetMute(SLVolumeItf self, SLboolean *pMute)
{
SL_ENTER_INTERFACE
if (NULL == pMute) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IVolume *thiz = (IVolume *) self;
interface_lock_shared(thiz);
SLboolean mute = thiz->mMute;
interface_unlock_shared(thiz);
*pMute = mute;
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IVolume_EnableStereoPosition(SLVolumeItf self, SLboolean enable)
{
SL_ENTER_INTERFACE
IVolume *thiz = (IVolume *) self;
enable = SL_BOOLEAN_FALSE != enable; // normalize
interface_lock_exclusive(thiz);
SLboolean oldEnable = thiz->mEnableStereoPosition;
if (oldEnable != enable) {
thiz->mEnableStereoPosition = (SLuint8) enable;
interface_unlock_exclusive_attributes(thiz, ATTR_GAIN);
} else {
interface_unlock_exclusive(thiz);
}
result = SL_RESULT_SUCCESS;
SL_LEAVE_INTERFACE
}
static SLresult IVolume_IsEnabledStereoPosition(SLVolumeItf self, SLboolean *pEnable)
{
SL_ENTER_INTERFACE
if (NULL == pEnable) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IVolume *thiz = (IVolume *) self;
interface_lock_shared(thiz);
SLboolean enable = thiz->mEnableStereoPosition;
interface_unlock_shared(thiz);
*pEnable = enable;
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IVolume_SetStereoPosition(SLVolumeItf self, SLpermille stereoPosition)
{
SL_ENTER_INTERFACE
if (!((-1000 <= stereoPosition) && (1000 >= stereoPosition))) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IVolume *thiz = (IVolume *) self;
interface_lock_exclusive(thiz);
SLpermille oldStereoPosition = thiz->mStereoPosition;
if (oldStereoPosition != stereoPosition) {
thiz->mStereoPosition = stereoPosition;
interface_unlock_exclusive_attributes(thiz, ATTR_GAIN);
} else {
interface_unlock_exclusive(thiz);
}
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IVolume_GetStereoPosition(SLVolumeItf self, SLpermille *pStereoPosition)
{
SL_ENTER_INTERFACE
if (NULL == pStereoPosition) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IVolume *thiz = (IVolume *) self;
interface_lock_shared(thiz);
SLpermille stereoPosition = thiz->mStereoPosition;
interface_unlock_shared(thiz);
*pStereoPosition = stereoPosition;
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static const struct SLVolumeItf_ IVolume_Itf = {
IVolume_SetVolumeLevel,
IVolume_GetVolumeLevel,
IVolume_GetMaxVolumeLevel,
IVolume_SetMute,
IVolume_GetMute,
IVolume_EnableStereoPosition,
IVolume_IsEnabledStereoPosition,
IVolume_SetStereoPosition,
IVolume_GetStereoPosition
};
void IVolume_init(void *self)
{
IVolume *thiz = (IVolume *) self;
thiz->mItf = &IVolume_Itf;
thiz->mLevel = 0;
thiz->mMute = SL_BOOLEAN_FALSE;
thiz->mEnableStereoPosition = SL_BOOLEAN_FALSE;
thiz->mStereoPosition = 0;
}
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