1a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten/* 2a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * Copyright (C) 2010 The Android Open Source Project 3a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * 4a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * Licensed under the Apache License, Version 2.0 (the "License"); 5a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * you may not use this file except in compliance with the License. 6a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * You may obtain a copy of the License at 7a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * 8a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * http://www.apache.org/licenses/LICENSE-2.0 9a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * 10a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * Unless required by applicable law or agreed to in writing, software 11a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * distributed under the License is distributed on an "AS IS" BASIS, 12a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * See the License for the specific language governing permissions and 14a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten * limitations under the License. 15a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten */ 16a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten 17a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten/* 3DGrouping implementation */ 18a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten 19a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten#include "sles_allinclusive.h" 20a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten 21ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten 22a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kastenstatic SLresult I3DGrouping_Set3DGroup(SL3DGroupingItf self, SLObjectItf group) 23a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten{ 24ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten SL_ENTER_INTERFACE 25ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten 266a357b8fa57b0bc1557cd5ab9f9fb86aabaaa18cGlenn Kasten // validate input parameters 276a357b8fa57b0bc1557cd5ab9f9fb86aabaaa18cGlenn Kasten C3DGroup *newGroup = (C3DGroup *) group; 28ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten result = SL_RESULT_SUCCESS; 296a357b8fa57b0bc1557cd5ab9f9fb86aabaaa18cGlenn Kasten if (NULL != newGroup) { 30928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten // check that new group has the correct object ID and is realized, and acquire a strong 31928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten // reference to it. FYI note that a deadlock will occur if application incorrectly 32928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten // specifies group as this audio player 33928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten result = AcquireStrongRef(&newGroup->mObject, SL_OBJECTID_3DGROUP); 34928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten // the new group is left unlocked, but it will be locked again below 356a357b8fa57b0bc1557cd5ab9f9fb86aabaaa18cGlenn Kasten } 36ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten if (SL_RESULT_SUCCESS == result) { 37bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten I3DGrouping *thiz = (I3DGrouping *) self; 38bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten IObject *thisObject = InterfaceToIObject(thiz); 39f51dba65751107c930759938775b75531ec1f330Glenn Kasten unsigned id = thisObject->mInstanceID; 40f51dba65751107c930759938775b75531ec1f330Glenn Kasten assert(0 != id); // player object must be published by this point 41f51dba65751107c930759938775b75531ec1f330Glenn Kasten --id; 42f51dba65751107c930759938775b75531ec1f330Glenn Kasten assert(MAX_INSTANCE > id); 43f51dba65751107c930759938775b75531ec1f330Glenn Kasten unsigned mask = 1 << id; 44bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten interface_lock_exclusive(thiz); 45bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten C3DGroup *oldGroup = thiz->mGroup; 46ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten if (newGroup != oldGroup) { 47ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten // remove this object from the old group's set of objects 48ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten if (NULL != oldGroup) { 49928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten IObject *oldGroupObject = &oldGroup->mObject; 50928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten // note that we already have a strong reference to the old group 51928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten object_lock_exclusive(oldGroupObject); 52ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten assert(oldGroup->mMemberMask & mask); 53ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten oldGroup->mMemberMask &= ~mask; 54928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten ReleaseStrongRefAndUnlockExclusive(oldGroupObject); 55ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten } 56ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten // add this object to the new group's set of objects 57ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten if (NULL != newGroup) { 58928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten IObject *newGroupObject = &newGroup->mObject; 59928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten // we already have a strong reference to the new group, but we need to re-lock it 60928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten // so that we always lock objects in the same nesting order to prevent a deadlock 61928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten object_lock_exclusive(newGroupObject); 62ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten assert(!(newGroup->mMemberMask & mask)); 63ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten newGroup->mMemberMask |= mask; 64928ea4ffff40c82987cfb1ac9e3095fdc6968709Glenn Kasten object_unlock_exclusive(newGroupObject); 65ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten } 66bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten thiz->mGroup = newGroup; 676a357b8fa57b0bc1557cd5ab9f9fb86aabaaa18cGlenn Kasten } 68bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten interface_unlock_exclusive(thiz); 696a357b8fa57b0bc1557cd5ab9f9fb86aabaaa18cGlenn Kasten } 70ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten 71ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten SL_LEAVE_INTERFACE 72a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten} 73a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten 74ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten 75d2a7f0d6883a6d3835642e7b282f05ed1c54fe63Glenn Kastenstatic SLresult I3DGrouping_Get3DGroup(SL3DGroupingItf self, SLObjectItf *pGroup) 76a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten{ 77ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten SL_ENTER_INTERFACE 78ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten 79ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten if (NULL == pGroup) { 80ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten result = SL_RESULT_PARAMETER_INVALID; 81ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten } else { 82bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten I3DGrouping *thiz = (I3DGrouping *) self; 83bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten interface_lock_shared(thiz); 84bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten C3DGroup *group = thiz->mGroup; 85ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten *pGroup = (NULL != group) ? &group->mObject.mItf : NULL; 86bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten interface_unlock_shared(thiz); 87ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten result = SL_RESULT_SUCCESS; 88ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten } 89ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten 90ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten SL_LEAVE_INTERFACE 91a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten} 92a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten 93ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten 94a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kastenstatic const struct SL3DGroupingItf_ I3DGrouping_Itf = { 95a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten I3DGrouping_Set3DGroup, 96a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten I3DGrouping_Get3DGroup 97a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten}; 98a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten 99a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kastenvoid I3DGrouping_init(void *self) 100a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten{ 101bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten I3DGrouping *thiz = (I3DGrouping *) self; 102bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten thiz->mItf = &I3DGrouping_Itf; 103bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten thiz->mGroup = NULL; 104a6d984c32855a239f7f79a3d3b7f2ddfb8cb9697Glenn Kasten} 105f51dba65751107c930759938775b75531ec1f330Glenn Kasten 106f51dba65751107c930759938775b75531ec1f330Glenn Kastenvoid I3DGrouping_deinit(void *self) 107f51dba65751107c930759938775b75531ec1f330Glenn Kasten{ 108bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten I3DGrouping *thiz = (I3DGrouping *) self; 109bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten C3DGroup *group = thiz->mGroup; 110f51dba65751107c930759938775b75531ec1f330Glenn Kasten if (NULL != group) { 111bcc5c7225e3b7a1dbf2e9e830987f69167acf06fGlenn Kasten unsigned mask = 1 << (InterfaceToIObject(thiz)->mInstanceID - 1); 112f51dba65751107c930759938775b75531ec1f330Glenn Kasten IObject *groupObject = &group->mObject; 113f51dba65751107c930759938775b75531ec1f330Glenn Kasten object_lock_exclusive(groupObject); 114f51dba65751107c930759938775b75531ec1f330Glenn Kasten assert(group->mMemberMask & mask); 115f51dba65751107c930759938775b75531ec1f330Glenn Kasten group->mMemberMask &= ~mask; 116f51dba65751107c930759938775b75531ec1f330Glenn Kasten ReleaseStrongRefAndUnlockExclusive(groupObject); 117f51dba65751107c930759938775b75531ec1f330Glenn Kasten } 118f51dba65751107c930759938775b75531ec1f330Glenn Kasten} 119