18db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten/* 28db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * Copyright (C) 2010 The Android Open Source Project 38db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * 48db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * Licensed under the Apache License, Version 2.0 (the "License"); 58db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * you may not use this file except in compliance with the License. 68db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * You may obtain a copy of the License at 78db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * 88db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * http://www.apache.org/licenses/LICENSE-2.0 98db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * 108db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * Unless required by applicable law or agreed to in writing, software 118db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * distributed under the License is distributed on an "AS IS" BASIS, 128db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * See the License for the specific language governing permissions and 148db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten * limitations under the License. 158db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten */ 168db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 178db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten/* Initial global entry points */ 188db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 198db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten#include "sles_allinclusive.h" 208db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 214ee246c55533bdab8ab5fa0f0581744fe58e7c91Jean-Michel Trivi#ifdef ANDROID 224ee246c55533bdab8ab5fa0f0581744fe58e7c91Jean-Michel Trivi#include <media/stagefright/DataSource.h> 234ee246c55533bdab8ab5fa0f0581744fe58e7c91Jean-Michel Trivi#include <binder/ProcessState.h> 244ee246c55533bdab8ab5fa0f0581744fe58e7c91Jean-Michel Trivi#endif 258db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 268db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten/** \brief Internal code shared by slCreateEngine and xaCreateEngine */ 278db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 28527f8ca99f2938d6569fc25dcf3256985a54dec6Glenn KastenLI_API SLresult liCreateEngine(SLObjectItf *pEngine, SLuint32 numOptions, 298db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten const SLEngineOption *pEngineOptions, SLuint32 numInterfaces, 308db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten const SLInterfaceID *pInterfaceIds, const SLboolean *pInterfaceRequired, 318db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten const ClassTable *pCEngine_class) 328db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten{ 338db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten SLresult result; 348db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 358db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten int ok; 368db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten ok = pthread_mutex_lock(&theOneTrueMutex); 378db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten assert(0 == ok); 381d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten bool needToUnlockTheOneTrueMutex = true; 398db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 408db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten do { 418db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 428db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten if (NULL == pEngine) { 438db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten result = SL_RESULT_PARAMETER_INVALID; 448db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 458db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 468db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten *pEngine = NULL; 478db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 488db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten if ((0 < numOptions) && (NULL == pEngineOptions)) { 49a8179ea15c4ff78db589d742b135649f0eda7ef2Glenn Kasten SL_LOGE("numOptions=%u and pEngineOptions=NULL", numOptions); 508db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten result = SL_RESULT_PARAMETER_INVALID; 518db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 528db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 538db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 548db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten // default values 558db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten SLboolean threadSafe = SL_BOOLEAN_TRUE; 568db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten SLboolean lossOfControlGlobal = SL_BOOLEAN_FALSE; 578db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 588db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten // process engine options 598db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten SLuint32 i; 608db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten const SLEngineOption *option = pEngineOptions; 618db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten result = SL_RESULT_SUCCESS; 628db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten for (i = 0; i < numOptions; ++i, ++option) { 638db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten switch (option->feature) { 648db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case SL_ENGINEOPTION_THREADSAFE: 658db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten threadSafe = SL_BOOLEAN_FALSE != (SLboolean) option->data; // normalize 668db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 678db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case SL_ENGINEOPTION_LOSSOFCONTROL: 688db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten lossOfControlGlobal = SL_BOOLEAN_FALSE != (SLboolean) option->data; // normalize 698db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 708db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten default: 71a8179ea15c4ff78db589d742b135649f0eda7ef2Glenn Kasten SL_LOGE("unknown engine option: feature=%u data=%u", 728db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten option->feature, option->data); 738db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten result = SL_RESULT_PARAMETER_INVALID; 748db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 758db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 768db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 778db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten if (SL_RESULT_SUCCESS != result) { 788db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 798db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 808db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 818db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten unsigned exposedMask; 828db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten assert(NULL != pCEngine_class); 838db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten result = checkInterfaces(pCEngine_class, numInterfaces, 8405c7b2d09d54b9260ff7f3f5e491f38d0097c406Glenn Kasten pInterfaceIds, pInterfaceRequired, &exposedMask, NULL); 858db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten if (SL_RESULT_SUCCESS != result) { 868db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 878db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 888db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 891d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten // if an engine already exists, then increment its ref count 90bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten CEngine *thiz = theOneTrueEngine; 91bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten if (NULL != thiz) { 921d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten assert(0 < theOneTrueRefCount); 931d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten ++theOneTrueRefCount; 941d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten 951d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten // In order to update the engine object, we need to lock it, 961d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten // but that would violate the lock order and potentially deadlock. 971d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten // So we unlock now and note that it should not be unlocked later. 981d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten ok = pthread_mutex_unlock(&theOneTrueMutex); 991d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten assert(0 == ok); 1001d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten needToUnlockTheOneTrueMutex = false; 101bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten object_lock_exclusive(&thiz->mObject); 1021d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten 1031d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten // now expose additional interfaces not requested by the earlier engine create 1041d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten const struct iid_vtable *x = pCEngine_class->mInterfaces; 105bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten SLuint8 *interfaceStateP = thiz->mObject.mInterfaceStates; 1061d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten SLuint32 index; 1071d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten for (index = 0; index < pCEngine_class->mInterfaceCount; ++index, ++x, 1081d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten exposedMask >>= 1, ++interfaceStateP) { 1091d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten switch (*interfaceStateP) { 1101d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten case INTERFACE_EXPOSED: // previously exposed 1111d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten break; 1121d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten case INTERFACE_INITIALIZED: // not exposed during the earlier create 1131d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten if (exposedMask & 1) { 1141d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten const struct MPH_init *mi = &MPH_init_table[x->mMPH]; 1151d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten BoolHook expose = mi->mExpose; 116bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten if ((NULL == expose) || (*expose)((char *) thiz + x->mOffset)) { 1171d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten *interfaceStateP = INTERFACE_EXPOSED; 1181d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten } 1191d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten // FIXME log or report to application that expose hook failed 1201d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten } 1211d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten break; 1221d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten case INTERFACE_UNINITIALIZED: // no init hook 1231d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten break; 1241d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten default: // impossible 1251d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten assert(false); 1261d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten break; 1271d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten } 1281d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten } 129bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten object_unlock_exclusive(&thiz->mObject); 1301d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten // return the shared engine object 131bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten *pEngine = &thiz->mObject.mItf; 1321d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten break; 1331d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten } 1341d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten 1351d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten // here when creating the first engine reference 1361d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten assert(0 == theOneTrueRefCount); 1371d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten 1381d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten#ifdef ANDROID 1391d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten android::ProcessState::self()->startThreadPool(); 1401d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten android::DataSource::RegisterDefaultSniffers(); 1411d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten#endif 1421d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten 143bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten thiz = (CEngine *) construct(pCEngine_class, exposedMask, NULL); 144bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten if (NULL == thiz) { 1458db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten result = SL_RESULT_MEMORY_FAILURE; 1468db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 1478db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 1488db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 1498db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten // initialize fields not associated with an interface 1508db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten // mThreadPool is initialized in CEngine_Realize 151bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten memset(&thiz->mThreadPool, 0, sizeof(ThreadPool)); 152bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten memset(&thiz->mSyncThread, 0, sizeof(pthread_t)); 153faf90312d2156acbf27c62e114fd180708aa7654Glenn Kasten#if defined(ANDROID) 154bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten thiz->mEqNumPresets = 0; 155bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten thiz->mEqPresetNames = NULL; 1568db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten#endif 1578db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten // initialize fields related to an interface 158bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten thiz->mObject.mLossOfControlMask = lossOfControlGlobal ? ~0 : 0; 159bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten thiz->mEngine.mLossOfControlGlobal = lossOfControlGlobal; 160bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten thiz->mEngineCapabilities.mThreadSafe = threadSafe; 161bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten IObject_Publish(&thiz->mObject); 162bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten theOneTrueEngine = thiz; 1631d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten theOneTrueRefCount = 1; 1648db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten // return the new engine object 165bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten *pEngine = &thiz->mObject.mItf; 1668db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 1678db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } while(0); 1688db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 1691d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten if (needToUnlockTheOneTrueMutex) { 1701d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten ok = pthread_mutex_unlock(&theOneTrueMutex); 1711d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten assert(0 == ok); 1721d081e49a10543018e1ae33792bd3d30504719baGlenn Kasten } 1738db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 1748db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten return result; 1758db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten} 1768db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 1778db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 1788db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten/** Internal function for slQuerySupportedEngineInterfaces and xaQuerySupportedEngineInterfaces */ 1798db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 180527f8ca99f2938d6569fc25dcf3256985a54dec6Glenn KastenLI_API SLresult liQueryNumSupportedInterfaces(SLuint32 *pNumSupportedInterfaces, 181bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten const ClassTable *clazz) 1828db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten{ 1838db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten SLresult result; 1848db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten if (NULL == pNumSupportedInterfaces) { 1858db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten result = SL_RESULT_PARAMETER_INVALID; 1868db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } else { 187bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten assert(NULL != clazz); 1888db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten SLuint32 count = 0; 1898db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten SLuint32 i; 190bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten for (i = 0; i < clazz->mInterfaceCount; ++i) { 191bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten switch (clazz->mInterfaces[i].mInterface) { 1928db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case INTERFACE_IMPLICIT: 1938db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case INTERFACE_IMPLICIT_PREREALIZE: 1948db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case INTERFACE_EXPLICIT: 1958db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case INTERFACE_EXPLICIT_PREREALIZE: 1968db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case INTERFACE_DYNAMIC: 1978db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten ++count; 1988db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 1998db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case INTERFACE_UNAVAILABLE: 2008db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 2018db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten default: 2028db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten assert(false); 2038db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 2048db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 2058db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 2068db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten *pNumSupportedInterfaces = count; 2078db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten result = SL_RESULT_SUCCESS; 2088db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 2098db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten return result; 2108db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten} 2118db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 2128db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 2138db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten/** Internal function for slQuerySupportedEngineInterfaces and xaQuerySupportedEngineInterfaces */ 2148db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten 215527f8ca99f2938d6569fc25dcf3256985a54dec6Glenn KastenLI_API SLresult liQuerySupportedInterfaces(SLuint32 index, SLInterfaceID *pInterfaceId, 216bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten const ClassTable *clazz) 2178db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten{ 2188db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten SLresult result; 2198db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten if (NULL == pInterfaceId) { 2208db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten result = SL_RESULT_PARAMETER_INVALID; 2218db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } else { 2228db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten *pInterfaceId = NULL; 223bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten assert(NULL != clazz); 2248db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten result = SL_RESULT_PARAMETER_INVALID; // will be reset later 2258db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten SLuint32 i; 226bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten for (i = 0; i < clazz->mInterfaceCount; ++i) { 227bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten switch (clazz->mInterfaces[i].mInterface) { 2288db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case INTERFACE_IMPLICIT: 2298db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case INTERFACE_IMPLICIT_PREREALIZE: 2308db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case INTERFACE_EXPLICIT: 2318db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case INTERFACE_EXPLICIT_PREREALIZE: 2328db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case INTERFACE_DYNAMIC: 2338db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 2348db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten case INTERFACE_UNAVAILABLE: 2358db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten continue; 2368db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten default: 2378db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten assert(false); 2388db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 2398db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 2408db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten if (index == 0) { 241bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten *pInterfaceId = &SL_IID_array[clazz->mInterfaces[i].mMPH]; 2428db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten result = SL_RESULT_SUCCESS; 2438db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten break; 2448db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 2458db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten --index; 2468db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 2478db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten } 2488db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten return result; 2498db0b106cdce5f5216b1535492de7930ad738aedGlenn Kasten} 250