blob: 831fda9e99ffad5916c91a2ffa1d65f2227d64e2 [file] [log] [blame]
/*
* 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.
*/
/* MIDITempo implementation */
#include "sles_allinclusive.h"
static SLresult IMIDITempo_SetTicksPerQuarterNote(SLMIDITempoItf self, SLuint32 tpqn)
{
SL_ENTER_INTERFACE
if (!(1 <= tpqn && tpqn <= 32767)) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IMIDITempo *thiz = (IMIDITempo *) self;
interface_lock_poke(thiz);
thiz->mTicksPerQuarterNote = tpqn;
interface_unlock_poke(thiz);
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IMIDITempo_GetTicksPerQuarterNote(SLMIDITempoItf self, SLuint32 *pTpqn)
{
SL_ENTER_INTERFACE
if (NULL == pTpqn) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IMIDITempo *thiz = (IMIDITempo *) self;
interface_lock_peek(thiz);
SLuint32 ticksPerQuarterNote = thiz->mTicksPerQuarterNote;
interface_unlock_peek(thiz);
*pTpqn = ticksPerQuarterNote;
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IMIDITempo_SetMicrosecondsPerQuarterNote(SLMIDITempoItf self, SLmicrosecond uspqn)
{
SL_ENTER_INTERFACE
// spec says zero, is that correct?
if (!(1 <= uspqn && uspqn <= 16777215)) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IMIDITempo *thiz = (IMIDITempo *) self;
interface_lock_poke(thiz);
thiz->mMicrosecondsPerQuarterNote = uspqn;
interface_unlock_poke(thiz);
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IMIDITempo_GetMicrosecondsPerQuarterNote(SLMIDITempoItf self, SLmicrosecond *uspqn)
{
SL_ENTER_INTERFACE
if (NULL == uspqn) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IMIDITempo *thiz = (IMIDITempo *) self;
interface_lock_peek(thiz);
SLuint32 microsecondsPerQuarterNote = thiz->mMicrosecondsPerQuarterNote;
interface_unlock_peek(thiz);
*uspqn = microsecondsPerQuarterNote;
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static const struct SLMIDITempoItf_ IMIDITempo_Itf = {
IMIDITempo_SetTicksPerQuarterNote,
IMIDITempo_GetTicksPerQuarterNote,
IMIDITempo_SetMicrosecondsPerQuarterNote,
IMIDITempo_GetMicrosecondsPerQuarterNote
};
void IMIDITempo_init(void *self)
{
IMIDITempo *thiz = (IMIDITempo *) self;
thiz->mItf = &IMIDITempo_Itf;
thiz->mTicksPerQuarterNote = 32; // wrong
thiz->mMicrosecondsPerQuarterNote = 100; // wrong
}