/*----------------------------------------------------------------------------
*
* File:
* jet.c
*
* Contents and purpose:
* Implementation for JET sound engine
*
* Copyright (c) 2006 Sonic Network Inc.
* 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.
*----------------------------------------------------------------------------
* Revision Control:
* $Revision: 563 $
* $Date: 2007-02-13 20:26:23 -0800 (Tue, 13 Feb 2007) $
*----------------------------------------------------------------------------
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "JET_C"
//#define DEBUG_JET
#include "eas_data.h"
#include "eas_smf.h"
#include "jet_data.h"
#include "eas_host.h"
#include "eas_report.h"
/* default configuration */
static const S_JET_CONFIG jetDefaultConfig =
{
JET_EVENT_APP_LOW,
JET_EVENT_APP_HIGH
};
/* function prototypes */
extern EAS_RESULT EAS_IntSetStrmParam (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS_INT param, EAS_I32 value);
extern EAS_RESULT EAS_OpenJETStream (EAS_DATA_HANDLE pEASData, EAS_FILE_HANDLE fileHandle, EAS_I32 offset, EAS_HANDLE *ppStream);
extern EAS_RESULT DLSParser (EAS_HW_DATA_HANDLE hwInstData, EAS_FILE_HANDLE fileHandle, EAS_I32 offset, EAS_DLSLIB_HANDLE *ppDLS);
/*----------------------------------------------------------------------------
* JET_ParseEvent()
*----------------------------------------------------------------------------
* Returns current status
*----------------------------------------------------------------------------
*/
EAS_PUBLIC void JET_ParseEvent (EAS_U32 event, S_JET_EVENT *pEvent)
{
pEvent->segment = (EAS_U8) ((event & JET_EVENT_SEG_MASK) >> JET_EVENT_SEG_SHIFT);
pEvent->track = (EAS_U8) ((event & JET_EVENT_TRACK_MASK) >> JET_EVENT_TRACK_SHIFT);
pEvent->channel = (EAS_U8) ((event & JET_EVENT_CHAN_MASK) >> JET_EVENT_CHAN_SHIFT);
pEvent->controller = (EAS_U8) ((event & JET_EVENT_CTRL_MASK) >> JET_EVENT_CTRL_SHIFT);
pEvent->value = (EAS_U8) (event & JET_EVENT_VAL_MASK);
}
#ifdef DEBUG_JET
/*----------------------------------------------------------------------------
* JET_DumpEvent
*----------------------------------------------------------------------------
* Advances queue read/write index
*----------------------------------------------------------------------------
*/
static void JET_DumpEvent (const char *procName, EAS_U32 event)
{
S_JET_EVENT sEvent;
JET_ParseEvent(event, &sEvent);
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "%s: SegID=%d, TrkID=%d, channel=%d, ctrl=%d, val=%d\n",
procName, sEvent.segment, sEvent.track, sEvent.channel, sEvent.controller, sEvent.value); */ }
}
#endif
/*----------------------------------------------------------------------------
* JET_IncQueueIndex
*----------------------------------------------------------------------------
* Advances queue read/write index
*----------------------------------------------------------------------------
*/
EAS_INLINE EAS_U8 JET_IncQueueIndex (EAS_U8 index, EAS_U8 queueSize)
{
if (++index == queueSize)
index = 0;
return index;
}
/*----------------------------------------------------------------------------
* JET_WriteQueue
*----------------------------------------------------------------------------
* Save event to queue
*----------------------------------------------------------------------------
*/
EAS_INLINE void JET_WriteQueue (EAS_U32 *pEventQueue, EAS_U8 *pWriteIndex, EAS_U8 readIndex, EAS_U8 queueSize, EAS_U32 event)
{
EAS_U8 temp;
/* check for queue overflow */
temp = JET_IncQueueIndex(*pWriteIndex, queueSize);
if (temp == readIndex)
{
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "JET_Event: Event queue overflow --- event ignored!\n"); */ }
return;
}
/* save in queue and advance write index */
pEventQueue[*pWriteIndex] = event;
*pWriteIndex = temp;
}
/*----------------------------------------------------------------------------
* JET_ReadQueue
*----------------------------------------------------------------------------
* Read event to queue
*----------------------------------------------------------------------------
*/
EAS_INLINE EAS_BOOL JET_ReadQueue (EAS_U32 *pEventQueue, EAS_U8 *pReadIndex, EAS_U8 writeIndex, EAS_U8 queueSize, EAS_U32 *pEvent)
{
/* check for empty queue */
if (*pReadIndex == writeIndex)
return EAS_FALSE;
/* save in queue and advance write index */
*pEvent = pEventQueue[*pReadIndex];
*pReadIndex = JET_IncQueueIndex(*pReadIndex, queueSize);
return EAS_TRUE;
}
/*----------------------------------------------------------------------------
* JET_NextSegment
*----------------------------------------------------------------------------
* Advances segment number
*----------------------------------------------------------------------------
*/
EAS_INLINE EAS_INT JET_NextSegment (EAS_INT seg_num)
{
if (++seg_num == SEG_QUEUE_DEPTH)
seg_num = 0;
return seg_num;
}
/*----------------------------------------------------------------------------
* JET_PrepareSegment()
*----------------------------------------------------------------------------
* Prepare a segment for playback
*----------------------------------------------------------------------------
*/
static EAS_RESULT JET_PrepareSegment (EAS_DATA_HANDLE easHandle, EAS_I32 queueNum)
{
EAS_RESULT result;
S_JET_SEGMENT *p;
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_PrepareSegment: %d\n", queueNum); */ }
p = &easHandle->jetHandle->segQueue[queueNum];
result = EAS_Prepare(easHandle, p->streamHandle);
if (result != EAS_SUCCESS)
return result;
/* pause segment - must be triggered by play or end of previous segment */
result = EAS_Pause(easHandle, p->streamHandle);
if (result != EAS_SUCCESS)
return result;
p->state = JET_STATE_READY;
/* set calback data */
result = EAS_IntSetStrmParam(easHandle, p->streamHandle, PARSER_DATA_JET_CB, queueNum);
if (result != EAS_SUCCESS)
return result;
/* set DLS collection */
if (p->libNum >= 0)
{
result = EAS_IntSetStrmParam(easHandle, p->streamHandle,
PARSER_DATA_DLS_COLLECTION, (EAS_I32) easHandle->jetHandle->libHandles[p->libNum]);
if (result != EAS_SUCCESS)
return result;
}
/* set transposition */
if (p->transpose)
{
result = EAS_SetTransposition(easHandle, p->streamHandle, p->transpose);
if (result != EAS_SUCCESS)
return result;
}
return result;
}
/*----------------------------------------------------------------------------
* JET_StartPlayback()
*----------------------------------------------------------------------------
* Start segment playback
*----------------------------------------------------------------------------
*/
static EAS_RESULT JET_StartPlayback (EAS_DATA_HANDLE easHandle, EAS_I32 queueNum)
{
EAS_RESULT result = EAS_SUCCESS;
S_JET_SEGMENT *pSeg;
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_StartPlayback %d\n", queueNum); */ }
/* if next segment is queued, start playback */
pSeg = &easHandle->jetHandle->segQueue[queueNum];
if (pSeg->streamHandle != NULL)
{
result = EAS_Resume(easHandle, pSeg->streamHandle);
easHandle->jetHandle->segQueue[queueNum].state = JET_STATE_PLAYING;
/* set mute flags */
if ((result == EAS_SUCCESS) && (pSeg->muteFlags != 0))
result = EAS_IntSetStrmParam(easHandle, pSeg->streamHandle, PARSER_DATA_MUTE_FLAGS, (EAS_I32) pSeg->muteFlags);
}
return result;
}
/*----------------------------------------------------------------------------
* JET_CloseSegment
*----------------------------------------------------------------------------
* Closes stream associated with a segment
*----------------------------------------------------------------------------
*/
EAS_INLINE EAS_INT JET_CloseSegment (EAS_DATA_HANDLE easHandle, EAS_INT queueNum)
{
EAS_RESULT result;
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_CloseSegment %d\n", queueNum); */ }
/* close the segment */
result = EAS_CloseFile(easHandle, easHandle->jetHandle->segQueue[queueNum].streamHandle);
if (result != EAS_SUCCESS)
return result;
easHandle->jetHandle->segQueue[queueNum].streamHandle = NULL;
easHandle->jetHandle->segQueue[queueNum].state = JET_STATE_CLOSED;
easHandle->jetHandle->numQueuedSegments--;
return result;
}
/*----------------------------------------------------------------------------
* JetParseInfoChunk()
*----------------------------------------------------------------------------
* Parses the JET info chunk
*----------------------------------------------------------------------------
*/
static EAS_RESULT JetParseInfoChunk (EAS_DATA_HANDLE easHandle, EAS_I32 pos, EAS_I32 chunkSize)
{
EAS_RESULT result;
EAS_U32 infoType;
EAS_U32 temp;
/* offset to data */
result = EAS_HWFileSeek(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, pos);
if (result != EAS_SUCCESS)
return result;
/* read the entire chunk */
result = EAS_SUCCESS;
while ((result == EAS_SUCCESS) && (chunkSize > 0))
{
/* get info infoType */
result = EAS_HWGetDWord(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &infoType, EAS_TRUE);
if (result != EAS_SUCCESS)
break;
/* get info field */
result = EAS_HWGetDWord(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &temp, EAS_FALSE);
if (result == EAS_SUCCESS)
switch (infoType)
{
case INFO_NUM_SMF_CHUNKS:
if (temp >= JET_MAX_SEGMENTS) {
return EAS_ERROR_INCOMPATIBLE_VERSION;
}
easHandle->jetHandle->numSegments = (EAS_U8) temp;
break;
case INFO_NUM_DLS_CHUNKS:
if (temp >= JET_MAX_DLS_COLLECTIONS) {
return EAS_ERROR_INCOMPATIBLE_VERSION;
}
easHandle->jetHandle->numLibraries = (EAS_U8) temp;
break;
case INFO_JET_VERSION:
/* check major version number */
if ((temp & 0xff000000) != (JET_VERSION & 0xff000000))
return EAS_ERROR_INCOMPATIBLE_VERSION;
break;
default:
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "Ignoring unrecognized JET info type 0x%08x", infoType); */ }
break;
}
chunkSize -= 8;
}
/* allocate pointers for chunks to follow */
return result;
}
/*----------------------------------------------------------------------------
* JET_OpenFile()
*----------------------------------------------------------------------------
* Opens a JET content file for playback
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT JET_OpenFile (EAS_DATA_HANDLE easHandle, EAS_FILE_LOCATOR locator)
{
EAS_RESULT result;
EAS_U32 chunkType;
EAS_I32 pos;
EAS_I32 chunkSize;
EAS_INT smfChunkNum;
EAS_INT dlsChunkNum;
EAS_I32 dataSize = 0; /* make lint happy */
/* make sure that we don't have an open file */
if (easHandle->jetHandle->jetFileHandle != NULL)
return EAS_ERROR_FILE_ALREADY_OPEN;
/* open the media file */
result = EAS_HWOpenFile(easHandle->hwInstData, locator, &easHandle->jetHandle->jetFileHandle, EAS_FILE_READ);
if (result != EAS_SUCCESS)
return result;
/* check header */
result = EAS_HWGetDWord(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &chunkType, EAS_TRUE);
if (result == EAS_SUCCESS)
{
if (chunkType != JET_HEADER_TAG)
{
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "File is not JET format\n"); */ }
result = EAS_ERROR_UNRECOGNIZED_FORMAT;
}
}
/* get the file data size */
if (result == EAS_SUCCESS)
result = EAS_HWGetDWord(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &dataSize, EAS_FALSE);
/* parse through the file to find contents */
smfChunkNum = dlsChunkNum = 0;
pos = chunkSize = 8;
while ((result == EAS_SUCCESS) && (pos < dataSize))
{
/* offset to chunk data */
result = EAS_HWFileSeek(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, pos);
if (result != EAS_SUCCESS)
break;
/* get chunk size and type */
result = EAS_HWGetDWord(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &chunkType, EAS_TRUE);
if (result != EAS_SUCCESS)
break;
result = EAS_HWGetDWord(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &chunkSize, EAS_FALSE);
if (result != EAS_SUCCESS)
break;
pos += 8;
switch (chunkType)
{
case JET_INFO_CHUNK:
result = JetParseInfoChunk(easHandle, pos, chunkSize);
break;
case JET_SMF_CHUNK:
if (smfChunkNum < easHandle->jetHandle->numSegments)
easHandle->jetHandle->segmentOffsets[smfChunkNum++] = pos;
else
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "Ignoring extraneous SMF chunk"); */ }
break;
case JET_DLS_CHUNK:
if (dlsChunkNum < easHandle->jetHandle->numLibraries)
result = DLSParser(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, pos, &easHandle->jetHandle->libHandles[dlsChunkNum++]);
else
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "Ignoring extraneous DLS chunk"); */ }
break;
case JET_APP_DATA_CHUNK:
easHandle->jetHandle->appDataOffset = pos;
easHandle->jetHandle->appDataSize = chunkSize;
break;
case INFO_JET_COPYRIGHT:
break;
default:
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "Ignoring unrecognized JET chunk type 0x%08x", chunkType); */ }
break;
}
/* offset to next chunk */
pos += chunkSize;
}
/* close file if something went wrong */
if (result != EAS_SUCCESS)
EAS_HWCloseFile(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle);
return result;
}
/*----------------------------------------------------------------------------
* JET_GetAppData()
*----------------------------------------------------------------------------
* Returns location and size of application data in the JET file
*----------------------------------------------------------------------------
*/
EAS_RESULT JET_GetAppData (EAS_DATA_HANDLE easHandle, EAS_I32 *pAppDataOffset, EAS_I32 *pAppDataSize)
{
/* check for app chunk */
if (easHandle->jetHandle->appDataSize == 0)
{
*pAppDataOffset = *pAppDataSize = 0;
return EAS_FAILURE;
}
/* return app data */
*pAppDataOffset = easHandle->jetHandle->appDataOffset;
*pAppDataSize = easHandle->jetHandle->appDataSize;
return EAS_SUCCESS;
}
/*----------------------------------------------------------------------------
* JET_CloseFile()
*----------------------------------------------------------------------------
* Closes a JET content file and releases associated resources
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT JET_CloseFile (EAS_DATA_HANDLE easHandle)
{
EAS_INT index;
EAS_RESULT result = EAS_SUCCESS;
/* close open streams */
for (index = 0; index < SEG_QUEUE_DEPTH; index++)
{
if (easHandle->jetHandle->segQueue[index].streamHandle != NULL)
{
result = JET_CloseSegment(easHandle, index);
if (result != EAS_SUCCESS)
break;
}
}
/* close the main file handle */
if ((result == EAS_SUCCESS) && (easHandle->jetHandle->jetFileHandle != NULL))
{
result = EAS_HWCloseFile(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle);
if (result == EAS_SUCCESS)
easHandle->jetHandle->jetFileHandle = NULL;
}
return result;
}
/*----------------------------------------------------------------------------
* JET_Init()
*----------------------------------------------------------------------------
* Initializes the JET library, allocates memory, etc. Call
* JET_Shutdown to de-allocate memory.
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT JET_Init (EAS_DATA_HANDLE easHandle, const S_JET_CONFIG *pConfig, EAS_INT configSize)
{
S_JET_DATA *pJet;
EAS_U8 flags = 0;
/* sanity check */
if (easHandle == NULL)
return EAS_ERROR_HANDLE_INTEGRITY;
if (easHandle->jetHandle != NULL)
return EAS_ERROR_FEATURE_ALREADY_ACTIVE;
if (pConfig == NULL)
pConfig = &jetDefaultConfig;
/* allocate the JET data object */
pJet = EAS_HWMalloc(easHandle->hwInstData, sizeof(S_JET_DATA));
if (pJet == NULL)
return EAS_ERROR_MALLOC_FAILED;
/* initialize JET data structure */
EAS_HWMemSet(pJet, 0, sizeof(S_JET_DATA));
easHandle->jetHandle = pJet;
pJet->flags = flags;
/* copy config data */
if (configSize > (EAS_INT) sizeof(S_JET_CONFIG))
configSize = sizeof(S_JET_CONFIG);
EAS_HWMemCpy(&pJet->config, pConfig, configSize);
return EAS_SUCCESS;
}
/*----------------------------------------------------------------------------
* JET_Shutdown()
*----------------------------------------------------------------------------
* Frees any memory used by the JET library
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT JET_Shutdown (EAS_DATA_HANDLE easHandle)
{
EAS_RESULT result;
int i;
/* close any open files */
result = JET_CloseFile(easHandle);
/* free allocated data */
for(i = 0 ; i < easHandle->jetHandle->numLibraries ; i++) {
if(easHandle->jetHandle->libHandles[i] != NULL) {
EAS_HWFree(easHandle->hwInstData, easHandle->jetHandle->libHandles[i]);
easHandle->jetHandle->libHandles[i] = NULL;
}
}
EAS_HWFree(easHandle->hwInstData, easHandle->jetHandle);
easHandle->jetHandle = NULL;
return result;
}
/*----------------------------------------------------------------------------
* JET_Status()
*----------------------------------------------------------------------------
* Returns current status
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT JET_Status (EAS_DATA_HANDLE easHandle, S_JET_STATUS *pStatus)
{
S_JET_SEGMENT *pSeg;
pSeg = &easHandle->jetHandle->segQueue[easHandle->jetHandle->playSegment];
if (pSeg->streamHandle != NULL)
{
pStatus->currentUserID = pSeg->userID;
pStatus->segmentRepeatCount = pSeg->repeatCount;
}
else
{
pStatus->currentUserID = -1;
pStatus->segmentRepeatCount = 0;
}
pStatus->paused = !(easHandle->jetHandle->flags & JET_FLAGS_PLAYING);
pStatus->numQueuedSegments = easHandle->jetHandle->numQueuedSegments;
pStatus->currentPlayingSegment = easHandle->jetHandle->playSegment;
pStatus->currentQueuedSegment = easHandle->jetHandle->queueSegment;
if (pSeg->streamHandle != NULL)
{
EAS_RESULT result;
EAS_I32 location ;
if ((result = EAS_GetLocation(easHandle, pSeg->streamHandle, &location)) == EAS_SUCCESS)
if(location != 0)
{
pStatus->location = location;
}
}
return EAS_SUCCESS;
}
/*----------------------------------------------------------------------------
* JET_GetEvent()
*----------------------------------------------------------------------------
* Checks for application events
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_BOOL JET_GetEvent (EAS_DATA_HANDLE easHandle, EAS_U32 *pEventRaw, S_JET_EVENT *pEvent)
{
EAS_U32 jetEvent;
EAS_BOOL gotEvent;
/* process event queue */
gotEvent = JET_ReadQueue(easHandle->jetHandle->appEventQueue,
&easHandle->jetHandle->appEventQueueRead,
easHandle->jetHandle->appEventQueueWrite,
APP_EVENT_QUEUE_SIZE, &jetEvent);
if (gotEvent)
{
if (pEventRaw != NULL)
*pEventRaw = jetEvent;
if (pEvent != NULL)
JET_ParseEvent(jetEvent, pEvent);
}
return gotEvent;
}
/*----------------------------------------------------------------------------
* JET_QueueSegment()
*----------------------------------------------------------------------------
* Queue a segment for playback
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT JET_QueueSegment (EAS_DATA_HANDLE easHandle, EAS_INT segmentNum, EAS_INT libNum, EAS_INT repeatCount, EAS_INT transpose, EAS_U32 muteFlags, EAS_U8 userID)
{
EAS_FILE_HANDLE fileHandle;
EAS_RESULT result;
S_JET_SEGMENT *p;
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_QueueSegment segNum=%d, queue=%d\n", segmentNum, easHandle->jetHandle->queueSegment); */ }
/* make sure it's a valid segment */
if (segmentNum >= easHandle->jetHandle->numSegments)
return EAS_ERROR_PARAMETER_RANGE;
/* make sure it's a valid DLS */
if (libNum >= easHandle->jetHandle->numLibraries)
return EAS_ERROR_PARAMETER_RANGE;
/* check to see if queue is full */
p = &easHandle->jetHandle->segQueue[easHandle->jetHandle->queueSegment];
if (p->streamHandle != NULL)
return EAS_ERROR_QUEUE_IS_FULL;
/* initialize data */
p->userID = userID;
p->repeatCount = (EAS_I16) repeatCount;
p->transpose = (EAS_I8) transpose;
p->libNum = (EAS_I8) libNum;
p->muteFlags = muteFlags;
p->state = JET_STATE_CLOSED;
/* open the file */
result = EAS_OpenJETStream(easHandle, easHandle->jetHandle->jetFileHandle, easHandle->jetHandle->segmentOffsets[segmentNum], &p->streamHandle);
if (result != EAS_SUCCESS)
return result;
p->state = JET_STATE_OPEN;
/* if less than SEG_QUEUE_DEPTH segments queued up, prepare file for playback */
if (++easHandle->jetHandle->numQueuedSegments < SEG_QUEUE_DEPTH)
{
result = JET_PrepareSegment(easHandle, easHandle->jetHandle->queueSegment);
if (result != EAS_SUCCESS)
return result;
}
/* create duplicate file handle */
result = EAS_HWDupHandle(easHandle->hwInstData, easHandle->jetHandle->jetFileHandle, &fileHandle);
if (result != EAS_SUCCESS)
return result;
easHandle->jetHandle->jetFileHandle = fileHandle;
easHandle->jetHandle->queueSegment = (EAS_U8) JET_NextSegment(easHandle->jetHandle->queueSegment);
return result;
}
/*----------------------------------------------------------------------------
* JET_Play()
*----------------------------------------------------------------------------
* Starts playback of the file
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT JET_Play (EAS_DATA_HANDLE easHandle)
{
EAS_RESULT result;
EAS_INT index;
EAS_INT count = 0;
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_Play\n"); */ }
/* sanity check */
if (easHandle->jetHandle->flags & JET_FLAGS_PLAYING)
return EAS_ERROR_NOT_VALID_IN_THIS_STATE;
/* resume all paused streams */
for (index = 0; index < SEG_QUEUE_DEPTH; index++)
{
if (((index == easHandle->jetHandle->playSegment) && (easHandle->jetHandle->segQueue[index].state == JET_STATE_READY)) ||
(easHandle->jetHandle->segQueue[index].state == JET_STATE_PAUSED))
{
result = JET_StartPlayback(easHandle, index);
if (result != EAS_SUCCESS)
return result;
count++;
}
}
/* if no streams are playing, return error */
if (!count)
return EAS_ERROR_QUEUE_IS_EMPTY;
easHandle->jetHandle->flags |= JET_FLAGS_PLAYING;
return EAS_SUCCESS;
}
/*----------------------------------------------------------------------------
* JET_Pause()
*----------------------------------------------------------------------------
* Pauses playback of the file
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT JET_Pause (EAS_DATA_HANDLE easHandle)
{
EAS_RESULT result;
EAS_INT index;
EAS_INT count = 0;
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_Pause\n"); */ }
/* sanity check */
if ((easHandle->jetHandle->flags & JET_FLAGS_PLAYING) == 0)
return EAS_ERROR_NOT_VALID_IN_THIS_STATE;
/* pause all playing streams */
for (index = 0; index < SEG_QUEUE_DEPTH; index++)
{
if (easHandle->jetHandle->segQueue[index].state == JET_STATE_PLAYING)
{
result = EAS_Pause(easHandle, easHandle->jetHandle->segQueue[easHandle->jetHandle->playSegment].streamHandle);
if (result != EAS_SUCCESS)
return result;
easHandle->jetHandle->segQueue[easHandle->jetHandle->playSegment].state = JET_STATE_PAUSED;
count++;
}
}
/* if no streams are paused, return error */
if (!count)
return EAS_ERROR_QUEUE_IS_EMPTY;
easHandle->jetHandle->flags &= ~JET_FLAGS_PLAYING;
return EAS_SUCCESS;
}
/*----------------------------------------------------------------------------
* JET_SetMuteFlags()
*----------------------------------------------------------------------------
* Change the state of the mute flags
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT JET_SetMuteFlags (EAS_DATA_HANDLE easHandle, EAS_U32 muteFlags, EAS_BOOL sync)
{
S_JET_SEGMENT *pSeg;
/* get pointer to current segment */
pSeg = &easHandle->jetHandle->segQueue[easHandle->jetHandle->playSegment];
/* unsynchronized mute, set flags and return */
if (!sync)
{
if (pSeg->streamHandle == NULL)
return EAS_ERROR_QUEUE_IS_EMPTY;
pSeg->muteFlags = muteFlags;
return EAS_IntSetStrmParam(easHandle, pSeg->streamHandle, PARSER_DATA_MUTE_FLAGS, (EAS_I32) muteFlags);
}
/* check for valid stream state */
if (pSeg->state == JET_STATE_CLOSED)
return EAS_ERROR_QUEUE_IS_EMPTY;
/* save mute flags */
pSeg->muteFlags = muteFlags;
/* if repeating segment, set mute update flag */
if (sync)
pSeg->flags |= JET_SEG_FLAG_MUTE_UPDATE;
return EAS_SUCCESS;
}
/*----------------------------------------------------------------------------
* JET_SetMuteFlag()
*----------------------------------------------------------------------------
* Change the state of a single mute flag
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT JET_SetMuteFlag (EAS_DATA_HANDLE easHandle, EAS_INT trackNum, EAS_BOOL muteFlag, EAS_BOOL sync)
{
S_JET_SEGMENT *pSeg;
EAS_U32 trackMuteFlag;
/* setup flag */
if ((trackNum < 0) || (trackNum > 31))
return EAS_ERROR_PARAMETER_RANGE;
trackMuteFlag = (1 << trackNum);
/* get pointer to current segment */
pSeg = &easHandle->jetHandle->segQueue[easHandle->jetHandle->playSegment];
/* unsynchronized mute, set flags and return */
if (!sync)
{
if (pSeg->streamHandle == NULL)
return EAS_ERROR_QUEUE_IS_EMPTY;
if (muteFlag)
pSeg->muteFlags |= trackMuteFlag;
else
pSeg->muteFlags &= ~trackMuteFlag;
return EAS_IntSetStrmParam(easHandle, pSeg->streamHandle, PARSER_DATA_MUTE_FLAGS, (EAS_I32) pSeg->muteFlags);
}
/* check for valid stream state */
if (pSeg->state == JET_STATE_CLOSED)
return EAS_ERROR_QUEUE_IS_EMPTY;
/* save mute flags and set mute update flag */
if (muteFlag)
pSeg->muteFlags |= trackMuteFlag;
else
pSeg->muteFlags &= ~trackMuteFlag;
pSeg->flags |= JET_SEG_FLAG_MUTE_UPDATE;
return EAS_SUCCESS;
}
/*----------------------------------------------------------------------------
* JET_TriggerClip()
*----------------------------------------------------------------------------
* Unmute a track and then mute it when it is complete. If a clip
* is already playing, change mute event to a trigger event. The
* JET_Event function will not mute the clip, but will allow it
* to continue playing through the next clip.
*
* NOTE: We use bit 7 to indicate an entry in the queue. For a
* small queue, it is cheaper in both memory and CPU cycles to
* scan the entire queue for non-zero events than keep enqueue
* and dequeue indices.
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT JET_TriggerClip (EAS_DATA_HANDLE easHandle, EAS_INT clipID)
{
EAS_INT i;
EAS_INT index = -1;
/* check for valid clipID */
if ((clipID < 0) || (clipID > 63))
return EAS_ERROR_PARAMETER_RANGE;
/* set active flag */
clipID |= JET_CLIP_ACTIVE_FLAG;
/* Reverse the search so that we get the first empty element */
for (i = JET_MUTE_QUEUE_SIZE-1; i >= 0 ; i--)
{
if (easHandle->jetHandle->muteQueue[i] == clipID)
{
index = i;
break;
}
if (easHandle->jetHandle->muteQueue[i] == 0)
index = i;
}
if (index < 0)
return EAS_ERROR_QUEUE_IS_FULL;
easHandle->jetHandle->muteQueue[index] = (EAS_U8) clipID | JET_CLIP_TRIGGER_FLAG;
return EAS_SUCCESS;
}
/*----------------------------------------------------------------------------
* JET_Process()
*----------------------------------------------------------------------------
* Called during EAS_Render to process stream states
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT JET_Process (EAS_DATA_HANDLE easHandle)
{
S_JET_SEGMENT *pSeg;
EAS_STATE state;
EAS_INT index;
EAS_INT playIndex;
EAS_RESULT result = EAS_SUCCESS;
EAS_BOOL endOfLoop = EAS_FALSE;
EAS_BOOL startNextSegment = EAS_FALSE;
EAS_BOOL prepareNextSegment = EAS_FALSE;
EAS_U32 jetEvent;
/* process event queue */
while (JET_ReadQueue(easHandle->jetHandle->jetEventQueue,
&easHandle->jetHandle->jetEventQueueRead,
easHandle->jetHandle->jetEventQueueWrite,
JET_EVENT_QUEUE_SIZE, &jetEvent))
{
S_JET_EVENT event;
#ifdef DEBUG_JET
JET_DumpEvent("JET_Process", jetEvent);
#endif
JET_ParseEvent(jetEvent, &event);
/* check for end of loop */
if ((event.controller == JET_EVENT_MARKER) &&
(event.value == JET_MARKER_LOOP_END) &&
(easHandle->jetHandle->segQueue[easHandle->jetHandle->playSegment].streamHandle != NULL))
endOfLoop = EAS_TRUE;
}
/* check state of all streams */
index = playIndex = easHandle->jetHandle->playSegment;
for (;;)
{
pSeg = &easHandle->jetHandle->segQueue[index];
if (pSeg->state != JET_STATE_CLOSED)
{
/* get playback state */
result = EAS_State(easHandle, pSeg->streamHandle, &state);
if (result != EAS_SUCCESS)
return result;
/* process state */
switch (pSeg->state)
{
/* take action if this segment is stopping */
case JET_STATE_PLAYING:
if (endOfLoop || (state == EAS_STATE_STOPPING) || (state == EAS_STATE_STOPPED))
{
/* handle repeats */
if (pSeg->repeatCount != 0)
{
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_Render repeating segment %d\n", index); */ }
result = EAS_Locate(easHandle, pSeg->streamHandle, 0, EAS_FALSE);
if (result != EAS_SUCCESS)
return result;
if (pSeg->repeatCount > 0)
pSeg->repeatCount--;
/* update mute flags if necessary */
if (pSeg->flags & JET_SEG_FLAG_MUTE_UPDATE)
{
result = EAS_IntSetStrmParam(easHandle, pSeg->streamHandle, PARSER_DATA_MUTE_FLAGS, (EAS_I32) pSeg->muteFlags);
if (result != EAS_SUCCESS)
return result;
pSeg->flags &= ~JET_SEG_FLAG_MUTE_UPDATE;
}
}
/* no repeat, start next segment */
else
{
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_Render stopping queue %d\n", index); */ }
startNextSegment = EAS_TRUE;
pSeg->state = JET_STATE_STOPPING;
easHandle->jetHandle->playSegment = (EAS_U8) JET_NextSegment(index);
}
}
break;
/* if playback has stopped, close the segment */
case JET_STATE_STOPPING:
if (state == EAS_STATE_STOPPED)
{
result = JET_CloseSegment(easHandle, index);
if (result != EAS_SUCCESS)
return result;
}
break;
case JET_STATE_READY:
if (startNextSegment)
{
result = JET_StartPlayback(easHandle, index);
if (result != EAS_SUCCESS)
return result;
startNextSegment = EAS_FALSE;
prepareNextSegment = EAS_TRUE;
}
break;
case JET_STATE_OPEN:
if (prepareNextSegment)
{
result = JET_PrepareSegment(easHandle, index);
if (result != EAS_SUCCESS)
return result;
prepareNextSegment = EAS_FALSE;
}
break;
case JET_STATE_PAUSED:
break;
default:
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "JET_Render: Unexpected segment state %d\n", pSeg->state); */ }
break;
}
}
/* increment index */
index = JET_NextSegment(index);
if (index == playIndex)
break;
}
/* if out of segments, clear playing flag */
if (easHandle->jetHandle->numQueuedSegments == 0)
easHandle->jetHandle->flags &= ~JET_FLAGS_PLAYING;
return result;
}
/*----------------------------------------------------------------------------
* JET_Event()
*----------------------------------------------------------------------------
* Called from MIDI parser when data of interest is received
*----------------------------------------------------------------------------
*/
void JET_Event (EAS_DATA_HANDLE easHandle, EAS_U32 segTrack, EAS_U8 channel, EAS_U8 controller, EAS_U8 value)
{
EAS_U32 event;
if (easHandle->jetHandle == NULL)
return;
/* handle triggers */
if (controller == JET_EVENT_TRIGGER_CLIP)
{
S_JET_SEGMENT *pSeg;
EAS_INT i;
EAS_U32 muteFlag;
for (i = 0; i < JET_MUTE_QUEUE_SIZE; i++)
{
/* search for event in queue */
if ((easHandle->jetHandle->muteQueue[i] & JET_CLIP_ID_MASK) == (value & JET_CLIP_ID_MASK))
{
/* get segment pointer and mute flag */
pSeg = &easHandle->jetHandle->segQueue[segTrack >> JET_EVENT_SEG_SHIFT];
muteFlag = 1 << ((segTrack & JET_EVENT_TRACK_MASK) >> JET_EVENT_TRACK_SHIFT);
/* un-mute the track */
if ((easHandle->jetHandle->muteQueue[i] & JET_CLIP_TRIGGER_FLAG) && ((value & 0x40) > 0))
{
pSeg->muteFlags &= ~muteFlag;
easHandle->jetHandle->muteQueue[i] &= ~JET_CLIP_TRIGGER_FLAG;
}
/* mute the track */
else
{
EAS_U32 beforeMute ;
beforeMute = pSeg->muteFlags ;
pSeg->muteFlags |= muteFlag;
if (beforeMute != pSeg->muteFlags)
easHandle->jetHandle->muteQueue[i] = 0;
}
EAS_IntSetStrmParam(easHandle, pSeg->streamHandle, PARSER_DATA_MUTE_FLAGS, (EAS_I32) pSeg->muteFlags);
return;
}
}
return;
}
/* generic event stuff */
event = (channel << JET_EVENT_CHAN_SHIFT) | (controller << JET_EVENT_CTRL_SHIFT) | value;
/* write to app queue, translate queue index to segment number */
if ((controller >= easHandle->jetHandle->config.appEventRangeLow) && (controller <= easHandle->jetHandle->config.appEventRangeHigh))
{
event |= easHandle->jetHandle->segQueue[(segTrack & JET_EVENT_SEG_MASK) >> JET_EVENT_SEG_SHIFT].userID << JET_EVENT_SEG_SHIFT;
#ifdef DEBUG_JET
JET_DumpEvent("JET_Event[app]", event);
#endif
JET_WriteQueue(easHandle->jetHandle->appEventQueue,
&easHandle->jetHandle->appEventQueueWrite,
easHandle->jetHandle->appEventQueueRead,
APP_EVENT_QUEUE_SIZE,
event);
}
/* write to JET queue */
else if ((controller >= JET_EVENT_LOW) && (controller <= JET_EVENT_HIGH))
{
event |= segTrack;
#ifdef DEBUG_JET
JET_DumpEvent("JET_Event[jet]", event);
#endif
JET_WriteQueue(easHandle->jetHandle->jetEventQueue,
&easHandle->jetHandle->jetEventQueueWrite,
easHandle->jetHandle->jetEventQueueRead,
JET_EVENT_QUEUE_SIZE,
event);
}
}
/*----------------------------------------------------------------------------
* JET_Clear_Queue()
*----------------------------------------------------------------------------
* Clears the queue and stops play without a complete shutdown
*----------------------------------------------------------------------------
*/
EAS_RESULT JET_Clear_Queue(EAS_DATA_HANDLE easHandle)
{
EAS_INT index;
EAS_RESULT result = EAS_SUCCESS;
{ /* dpp: EAS_ReportEx(_EAS_SEVERITY_INFO, "JET_Clear_Queue\n"); */ }
/* pause all playing streams */
for (index = 0; index < SEG_QUEUE_DEPTH; index++)
{
if (easHandle->jetHandle->segQueue[index].state == JET_STATE_PLAYING)
{
result = EAS_Pause(easHandle, easHandle->jetHandle->segQueue[index].streamHandle);
if (result != EAS_SUCCESS)
return result;
easHandle->jetHandle->segQueue[index].state = JET_STATE_PAUSED;
}
}
/* close all streams */
for (index = 0; index < SEG_QUEUE_DEPTH; index++)
{
if (easHandle->jetHandle->segQueue[index].streamHandle != NULL)
{
result = JET_CloseSegment(easHandle, index);
if (result != EAS_SUCCESS)
return result;
}
}
/* clear all clips */
for (index = 0; index < JET_MUTE_QUEUE_SIZE ; index++)
{
easHandle->jetHandle->muteQueue[index] = 0;
}
easHandle->jetHandle->flags &= ~JET_FLAGS_PLAYING;
easHandle->jetHandle->playSegment = easHandle->jetHandle->queueSegment = 0;
return result;
}