diff options
Diffstat (limited to 'arm-wt-22k/lib_src/jet.c')
| -rw-r--r-- | arm-wt-22k/lib_src/jet.c | 1072 |
1 files changed, 1072 insertions, 0 deletions
diff --git a/arm-wt-22k/lib_src/jet.c b/arm-wt-22k/lib_src/jet.c new file mode 100644 index 0000000..a59ef65 --- /dev/null +++ b/arm-wt-22k/lib_src/jet.c @@ -0,0 +1,1072 @@ +/*----------------------------------------------------------------------------
+ *
+ * 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) $
+ *----------------------------------------------------------------------------
+*/
+
+#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:
+ easHandle->jetHandle->numSegments = (EAS_U8) temp;
+ break;
+
+ case INFO_NUM_DLS_CHUNKS:
+ 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;
+
+ /* close any open files */
+ result = JET_CloseFile(easHandle);
+
+ /* free allocated data */
+ 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;
+ return EAS_SUCCESS;
+}
+
+/*----------------------------------------------------------------------------
+ * JET_GetEvent()
+ *----------------------------------------------------------------------------
+ * Checks for application events
+ *----------------------------------------------------------------------------
+*/
+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 3 segments queued up, prepare file for playback */
+ if (++easHandle->jetHandle->numQueuedSegments < 3)
+ {
+ 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);
+ }
+
+ /* if this segment is not repeating, use next segment */
+ if (pSeg->repeatCount == 0)
+ {
+ EAS_INT index;
+ index = JET_NextSegment(easHandle->jetHandle->playSegment);
+ pSeg = &easHandle->jetHandle->segQueue[index];
+ sync = EAS_FALSE;
+ }
+
+ /* 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);
+ }
+
+ /* if this segment is not repeating, use next segment */
+ if (pSeg->repeatCount == 0)
+ {
+ EAS_INT index;
+ index = JET_NextSegment(easHandle->jetHandle->playSegment);
+ pSeg = &easHandle->jetHandle->segQueue[index];
+ }
+
+ /* 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;
+
+ 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)
+ {
+ pSeg->muteFlags &= ~muteFlag;
+ easHandle->jetHandle->muteQueue[i] &= ~JET_CLIP_TRIGGER_FLAG;
+ }
+
+ /* mute the track */
+ else
+ {
+ pSeg->muteFlags |= muteFlag;
+ 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);
+ }
+}
+
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