| /* |
| * 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. |
| */ |
| |
| /* MIDITime implementation */ |
| |
| #include "sles_allinclusive.h" |
| |
| |
| static SLresult IMIDITime_GetDuration(SLMIDITimeItf self, SLuint32 *pDuration) |
| { |
| SL_ENTER_INTERFACE |
| |
| if (NULL == pDuration) { |
| result = SL_RESULT_PARAMETER_INVALID; |
| } else { |
| IMIDITime *thiz = (IMIDITime *) self; |
| SLuint32 duration = thiz->mDuration; |
| *pDuration = duration; |
| result = SL_RESULT_SUCCESS; |
| } |
| |
| SL_LEAVE_INTERFACE |
| } |
| |
| |
| static SLresult IMIDITime_SetPosition(SLMIDITimeItf self, SLuint32 position) |
| { |
| SL_ENTER_INTERFACE |
| |
| IMIDITime *thiz = (IMIDITime *) self; |
| // const, no lock needed |
| if (!(position < thiz->mDuration)) { |
| result = SL_RESULT_PARAMETER_INVALID; |
| } else { |
| interface_lock_poke(thiz); |
| thiz->mPosition = position; |
| interface_unlock_poke(thiz); |
| result = SL_RESULT_SUCCESS; |
| } |
| |
| SL_LEAVE_INTERFACE |
| } |
| |
| |
| static SLresult IMIDITime_GetPosition(SLMIDITimeItf self, SLuint32 *pPosition) |
| { |
| SL_ENTER_INTERFACE |
| |
| if (NULL == pPosition) { |
| result = SL_RESULT_PARAMETER_INVALID; |
| } else { |
| IMIDITime *thiz = (IMIDITime *) self; |
| interface_lock_peek(thiz); |
| SLuint32 position = thiz->mPosition; |
| interface_unlock_peek(thiz); |
| *pPosition = position; |
| result = SL_RESULT_SUCCESS; |
| } |
| |
| SL_LEAVE_INTERFACE |
| } |
| |
| |
| static SLresult IMIDITime_SetLoopPoints(SLMIDITimeItf self, SLuint32 startTick, SLuint32 numTicks) |
| { |
| SL_ENTER_INTERFACE |
| |
| IMIDITime *thiz = (IMIDITime *) self; |
| // const, no lock needed |
| SLuint32 duration = thiz->mDuration; |
| if (!((startTick < duration) && (numTicks <= duration - startTick))) { |
| result = SL_RESULT_PARAMETER_INVALID; |
| } else { |
| interface_lock_exclusive(thiz); |
| thiz->mStartTick = startTick; |
| thiz->mNumTicks = numTicks; |
| interface_unlock_exclusive(thiz); |
| result = SL_RESULT_SUCCESS; |
| } |
| |
| SL_LEAVE_INTERFACE |
| } |
| |
| |
| static SLresult IMIDITime_GetLoopPoints(SLMIDITimeItf self, SLuint32 *pStartTick, |
| SLuint32 *pNumTicks) |
| { |
| SL_ENTER_INTERFACE |
| |
| if (NULL == pStartTick || NULL == pNumTicks) { |
| result = SL_RESULT_PARAMETER_INVALID; |
| } else { |
| IMIDITime *thiz = (IMIDITime *) self; |
| interface_lock_shared(thiz); |
| SLuint32 startTick = thiz->mStartTick; |
| SLuint32 numTicks = thiz->mNumTicks; |
| interface_unlock_shared(thiz); |
| *pStartTick = startTick; |
| *pNumTicks = numTicks; |
| result = SL_RESULT_SUCCESS; |
| } |
| |
| SL_LEAVE_INTERFACE |
| } |
| |
| |
| static const struct SLMIDITimeItf_ IMIDITime_Itf = { |
| IMIDITime_GetDuration, |
| IMIDITime_SetPosition, |
| IMIDITime_GetPosition, |
| IMIDITime_SetLoopPoints, |
| IMIDITime_GetLoopPoints |
| }; |
| |
| void IMIDITime_init(void *self) |
| { |
| IMIDITime *thiz = (IMIDITime *) self; |
| thiz->mItf = &IMIDITime_Itf; |
| thiz->mDuration = 0; |
| thiz->mPosition = 0; |
| thiz->mStartTick = 0; |
| thiz->mNumTicks = 0; |
| } |