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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 /* 3DDoppler implementation */
     18 
     19 #include "sles_allinclusive.h"
     20 
     21 
     22 static SLresult I3DDoppler_SetVelocityCartesian(SL3DDopplerItf self, const SLVec3D *pVelocity)
     23 {
     24     SL_ENTER_INTERFACE
     25 
     26     if (NULL == pVelocity) {
     27         result = SL_RESULT_PARAMETER_INVALID;
     28     } else {
     29         I3DDoppler *thiz = (I3DDoppler *) self;
     30         SLVec3D velocityCartesian = *pVelocity;
     31         interface_lock_exclusive(thiz);
     32         thiz->mVelocityCartesian = velocityCartesian;
     33         thiz->mVelocityActive = CARTESIAN_SET_SPHERICAL_UNKNOWN;
     34         interface_unlock_exclusive(thiz);
     35         result = SL_RESULT_SUCCESS;
     36     }
     37 
     38     SL_LEAVE_INTERFACE
     39 }
     40 
     41 
     42 static SLresult I3DDoppler_SetVelocitySpherical(SL3DDopplerItf self,
     43     SLmillidegree azimuth, SLmillidegree elevation, SLmillimeter speed)
     44 {
     45     SL_ENTER_INTERFACE
     46 
     47     I3DDoppler *thiz = (I3DDoppler *) self;
     48     interface_lock_exclusive(thiz);
     49     thiz->mVelocitySpherical.mAzimuth = azimuth;
     50     thiz->mVelocitySpherical.mElevation = elevation;
     51     thiz->mVelocitySpherical.mSpeed = speed;
     52     thiz->mVelocityActive = CARTESIAN_UNKNOWN_SPHERICAL_SET;
     53     interface_unlock_exclusive(thiz);
     54     result = SL_RESULT_SUCCESS;
     55 
     56     SL_LEAVE_INTERFACE
     57 }
     58 
     59 
     60 static SLresult I3DDoppler_GetVelocityCartesian(SL3DDopplerItf self, SLVec3D *pVelocity)
     61 {
     62     SL_ENTER_INTERFACE
     63 
     64     if (NULL == pVelocity) {
     65         result = SL_RESULT_PARAMETER_INVALID;
     66     } else {
     67         I3DDoppler *thiz = (I3DDoppler *) self;
     68         interface_lock_exclusive(thiz);
     69         for (;;) {
     70             enum CartesianSphericalActive velocityActive = thiz->mVelocityActive;
     71             switch (velocityActive) {
     72             case CARTESIAN_COMPUTED_SPHERICAL_SET:
     73             case CARTESIAN_SET_SPHERICAL_COMPUTED:  // not in 1.0.1
     74             case CARTESIAN_SET_SPHERICAL_REQUESTED: // not in 1.0.1
     75             case CARTESIAN_SET_SPHERICAL_UNKNOWN:
     76                 {
     77                 SLVec3D velocityCartesian = thiz->mVelocityCartesian;
     78                 interface_unlock_exclusive(thiz);
     79                 *pVelocity = velocityCartesian;
     80                 }
     81                 break;
     82             case CARTESIAN_UNKNOWN_SPHERICAL_SET:
     83                 thiz->mVelocityActive = CARTESIAN_REQUESTED_SPHERICAL_SET;
     84                 // fall through
     85             case CARTESIAN_REQUESTED_SPHERICAL_SET:
     86                 // matched by cond_broadcast in case multiple requesters
     87 #if 0
     88                 interface_cond_wait(thiz);
     89 #else
     90                 thiz->mVelocityActive = CARTESIAN_COMPUTED_SPHERICAL_SET;
     91 #endif
     92                 continue;
     93             default:
     94                 assert(SL_BOOLEAN_FALSE);
     95                 interface_unlock_exclusive(thiz);
     96                 pVelocity->x = 0;
     97                 pVelocity->y = 0;
     98                 pVelocity->z = 0;
     99                 break;
    100             }
    101             break;
    102         }
    103         result = SL_RESULT_SUCCESS;
    104     }
    105 
    106     SL_LEAVE_INTERFACE
    107 }
    108 
    109 
    110 static SLresult I3DDoppler_SetDopplerFactor(SL3DDopplerItf self, SLpermille dopplerFactor)
    111 {
    112     SL_ENTER_INTERFACE
    113 
    114     I3DDoppler *thiz = (I3DDoppler *) self;
    115     interface_lock_poke(thiz);
    116     thiz->mDopplerFactor = dopplerFactor;
    117     interface_unlock_poke(thiz);
    118     result = SL_RESULT_SUCCESS;
    119 
    120     SL_LEAVE_INTERFACE
    121 }
    122 
    123 
    124 static SLresult I3DDoppler_GetDopplerFactor(SL3DDopplerItf self, SLpermille *pDopplerFactor)
    125 {
    126     SL_ENTER_INTERFACE
    127 
    128     if (NULL == pDopplerFactor) {
    129         result = SL_RESULT_PARAMETER_INVALID;
    130     } else {
    131         I3DDoppler *thiz = (I3DDoppler *) self;
    132         interface_lock_peek(thiz);
    133         SLpermille dopplerFactor = thiz->mDopplerFactor;
    134         interface_unlock_peek(thiz);
    135         *pDopplerFactor = dopplerFactor;
    136         result = SL_RESULT_SUCCESS;
    137     }
    138 
    139     SL_LEAVE_INTERFACE
    140 }
    141 
    142 
    143 static const struct SL3DDopplerItf_ I3DDoppler_Itf = {
    144     I3DDoppler_SetVelocityCartesian,
    145     I3DDoppler_SetVelocitySpherical,
    146     I3DDoppler_GetVelocityCartesian,
    147     I3DDoppler_SetDopplerFactor,
    148     I3DDoppler_GetDopplerFactor
    149 };
    150 
    151 void I3DDoppler_init(void *self)
    152 {
    153     I3DDoppler *thiz = (I3DDoppler *) self;
    154     thiz->mItf = &I3DDoppler_Itf;
    155     thiz->mVelocityCartesian.x = 0;
    156     thiz->mVelocityCartesian.y = 0;
    157     thiz->mVelocityCartesian.z = 0;
    158     memset(&thiz->mVelocitySpherical, 0x55, sizeof(thiz->mVelocitySpherical));
    159     thiz->mVelocityActive = CARTESIAN_SET_SPHERICAL_UNKNOWN;
    160     thiz->mDopplerFactor = 1000;
    161 }
    162