diff options
Diffstat (limited to 'src/Dolphin/dtk.c')
| -rw-r--r-- | src/Dolphin/dtk.c | 357 |
1 files changed, 357 insertions, 0 deletions
diff --git a/src/Dolphin/dtk.c b/src/Dolphin/dtk.c new file mode 100644 index 0000000..b59a850 --- /dev/null +++ b/src/Dolphin/dtk.c @@ -0,0 +1,357 @@ +#include <dolphin/ai.h> +#include <dolphin/dtk.h> + +static DVDCommandBlock __block_for_run_callback; +static DVDCommandBlock __block_for_prep_callback; +static DVDCommandBlock __block_for_stream_status; +static DVDCommandBlock __block_for_ais_isr; +static DVDCommandBlock __block_for_flushtracks; +static DVDCommandBlock __block_for_set_state; +static DVDCommandBlock __block_for_next_track; + +static DTKTrack* __DTKCurrentTrack; +static DTKTrack* __DTKPlayListHead; +static DTKTrack* __DTKPlayListTail; +static vu32 __DTKState; +static vu32 __DTKTempState; +static vu32 __DTKRepeatMode; +static vu32 __DTKPosition; +static vu32 __DTKInterruptFrequency; +static vu8 __DTKVolumeL; +static vu8 __DTKVolumeR; +static volatile u32 __DTKShutdownFlag; +static volatile u32 __DTKTrackEnded; +static DTKFlushCallback __DTKFlushCallback; + +static void __DTKStartAi() { + AISetStreamVolLeft(__DTKVolumeL); + AISetStreamVolRight(__DTKVolumeR); + AIResetStreamSampleCount(); + AISetStreamTrigger(__DTKInterruptFrequency); + AISetStreamPlayState(1); +} + +static void __DTKStopAi() { + AISetStreamVolLeft(0); + AISetStreamVolRight(0); + AISetStreamPlayState(0); +} + +static void __DTKCheckUserCallback(DTKTrack* track, u32 event) { + if (track == NULL) { + return; + } + + if (track->callback != NULL && (track->eventMask & event) != 0) { + track->callback(track->eventMask & event); + } +} + +static void __DTKForward() { + BOOL enabled; + enabled = OSDisableInterrupts(); + if (__DTKCurrentTrack != NULL && __DTKCurrentTrack->next != nullptr) { + __DTKCurrentTrack = __DTKCurrentTrack->next; + } + + OSRestoreInterrupts(enabled); +} + +static void __DTKBackward() { + BOOL enabled; + enabled = OSDisableInterrupts(); + if (__DTKCurrentTrack != NULL && __DTKCurrentTrack->prev != nullptr) { + __DTKCurrentTrack = __DTKCurrentTrack->prev; + } + + OSRestoreInterrupts(enabled); +} + +static void __DTKCallbackForStreamStatus(s32 result, DVDCommandBlock* block) { + if ((u8)result) { + return; + } + __DTKTrackEnded = TRUE; + __DTKPosition = 0; +} + +static void __DTKCallbackForRun(s32 result, DVDFileInfo* fileInfo) { + __DTKStartAi(); + DVDStopStreamAtEndAsync(&__block_for_run_callback, NULL); + __DTKState = 1; + __DTKCheckUserCallback(__DTKCurrentTrack, 1); +} + +static void __DTKCallbackForPreparePaused(s32 result, DVDFileInfo* fileInfo) { + __DTKStopAi(); + DVDStopStreamAtEndAsync(&__block_for_prep_callback, NULL); + __DTKState = 2; + __DTKCheckUserCallback(__DTKCurrentTrack, 32); +} + +static void __DTKPrepareCurrentTrack(DVDCallback callback) { + DVDPrepareStreamAsync(&__DTKCurrentTrack->dvdFileInfo, 0, 0, callback); +} +static void __DTKCallbackForPlaylist(s32 result, DVDCommandBlock* block) { + __DTKPosition = result; + + if (__DTKTrackEnded != FALSE) { + __DTKTrackEnded = FALSE; + __DTKCheckUserCallback(__DTKCurrentTrack, 16); + __DTKState = 3; + switch (__DTKRepeatMode) { + case 0: + if (__DTKCurrentTrack == NULL) { + break; + } + + if (__DTKCurrentTrack->next != NULL) { + __DTKCurrentTrack = __DTKCurrentTrack->next; + __DTKStopAi(); + __DTKPrepareCurrentTrack(__DTKCallbackForRun); + } else { + __DTKCurrentTrack = __DTKPlayListHead; + __DTKStopAi(); + __DTKState = 0; + } + break; + case 1: { + if (__DTKCurrentTrack == NULL) { + break; + } + if (__DTKCurrentTrack->next != NULL) { + __DTKCurrentTrack = __DTKCurrentTrack->next; + __DTKStopAi(); + __DTKPrepareCurrentTrack(__DTKCallbackForRun); + } else { + __DTKCurrentTrack = __DTKPlayListHead; + __DTKStopAi(); + __DTKPrepareCurrentTrack(__DTKCallbackForRun); + } + break; + } + case 2: { + if (__DTKCurrentTrack == NULL) { + break; + } + + __DTKStopAi(); + __DTKPrepareCurrentTrack(__DTKCallbackForRun); + break; + } + } + return; + } + + DVDGetStreamErrorStatusAsync(&__block_for_stream_status, __DTKCallbackForStreamStatus); +} + +static void __DTKCallbackForAIInterrupt(u32 result) { + AISetStreamTrigger(result + __DTKInterruptFrequency); + + if (__DTKCurrentTrack != NULL) { + DVDGetStreamPlayAddrAsync(&__block_for_ais_isr, __DTKCallbackForPlaylist); + } +} + +static void __DTKCallbackForFlush(s32 result, DVDCommandBlock* block) { + DTKTrack* iter; + AISetStreamPlayState(0); + + for (iter = __DTKPlayListHead; iter != NULL; iter = iter->next) { + DVDClose(&iter->dvdFileInfo); + } + + __DTKPlayListHead = NULL; + __DTKPlayListTail = NULL; + __DTKCurrentTrack = NULL; + __DTKState = 0; + if (__DTKFlushCallback != NULL) { + __DTKFlushCallback(); + __DTKFlushCallback = NULL; + } + + __DTKState = 0; + __DTKShutdownFlag = 0; +} + +static void __DTKCallbackForStop() { + __DTKCheckUserCallback(__DTKCurrentTrack, 2); + __DTKState = 0; +} + +static void __DTKCallbackForNextTrack() { + AISetStreamPlayState(0); + __DTKForward(); + __DTKState = 0; + DTKSetState(__DTKTempState); +} + +static void __DTKCallbackForPrevTrack() { + AISetStreamPlayState(0); + __DTKBackward(); + __DTKState = 0; + DTKSetState(__DTKTempState); +} + +void DTKInit() { + __DTKCurrentTrack = NULL; + __DTKPlayListHead = NULL; + __DTKPlayListTail = NULL; + __DTKState = 0; + __DTKRepeatMode = 0; + __DTKPosition = 0; + __DTKInterruptFrequency = 48000; + __DTKVolumeL = 255; + __DTKVolumeR = 255; + AISetStreamVolLeft(0); + AISetStreamVolRight(0); + AIRegisterStreamCallback(__DTKCallbackForAIInterrupt); + AIResetStreamSampleCount(); + AISetStreamPlayState(0); +} + +u32 DTKQueueTrack(char* fileName, DTKTrack* track, u32 eventMask, DTKCallback callback) { + BOOL enabled; + u32 prepareTrack = FALSE; + if (DVDOpen(fileName, &track->dvdFileInfo) == 0) { + return 1; + } + + enabled = OSDisableInterrupts(); + track->fileName = fileName; + track->eventMask = eventMask; + track->callback = callback; + + if (__DTKPlayListHead == NULL) { + __DTKPlayListHead = track; + __DTKPlayListTail = track; + track->prev = NULL; + track->next = NULL; + if (__DTKState == 1) { + prepareTrack = TRUE; + } + } else { + __DTKPlayListTail->next = track; + track->prev = __DTKPlayListTail; + __DTKPlayListTail = track; + track->next = NULL; + } + + if (__DTKCurrentTrack == NULL) { + __DTKCurrentTrack = track; + } + + OSRestoreInterrupts(enabled); + __DTKCheckUserCallback(track, 8); + if (prepareTrack != 0) { + __DTKState = 3; + __DTKPrepareCurrentTrack(__DTKCallbackForRun); + } + + return 0; +} + +void DTKFlushTracks(DTKFlushCallback callback) { + u32 oldState; + if (__DTKState != 3) { + oldState = __DTKState; + __DTKState = 3; + __DTKFlushCallback = callback; + if (oldState == 1) { + DVDCancelStreamAsync(&__block_for_flushtracks, __DTKCallbackForFlush); + } else { + __DTKCallbackForFlush(0, NULL); + } + } +} + +void DTKSetSampleRate(u32 rate) {} + +void DTKSetRepeatMode(u32 repeat) { __DTKRepeatMode = repeat; } + +void DTKSetState(u32 state) { + if (__DTKState == state || __DTKState == 3) { + return; + } + switch (state) { + case 0: { + if (__DTKCurrentTrack == NULL) { + break; + } + + __DTKState = 3; + AISetStreamVolLeft(0); + AISetStreamVolRight(0); + AISetStreamPlayState(0); + DVDCancelStreamAsync(&__block_for_set_state, __DTKCallbackForStop); + break; + } + case 1: { + if (__DTKState == 2) { + __DTKStartAi(); + __DTKState = 1; + if (__DTKCurrentTrack != NULL) { + __DTKCheckUserCallback(__DTKCurrentTrack, 1); + } + } else if (__DTKCurrentTrack != NULL) { + __DTKState = 3; + __DTKPrepareCurrentTrack(__DTKCallbackForRun); + + } else { + __DTKState = 1; + } + + __DTKTrackEnded = 0; + break; + } + case 4: { + if (__DTKState != 0) { + break; + } + + if (__DTKCurrentTrack != NULL) { + __DTKState = 3; + __DTKPrepareCurrentTrack(__DTKCallbackForPreparePaused); + } + + __DTKTrackEnded = FALSE; + break; + } + case 2: { + AISetStreamPlayState(0); + if (__DTKState == 1) { + __DTKState = 2; + } + __DTKCheckUserCallback(__DTKCurrentTrack, 4); + break; + } + } +} + +void DTKNextTrack() { + if (__DTKState != 3 && __DTKCurrentTrack != NULL) { + __DTKTempState = __DTKState; + __DTKState = 3; + if (__DTKTempState == 1) { + AISetStreamVolLeft(0); + AISetStreamVolRight(0); + DVDCancelStreamAsync(&__block_for_next_track, __DTKCallbackForNextTrack); + + } else { + __DTKForward(); + __DTKState = __DTKTempState; + } + } +} + +u32 DTKGetState() { return __DTKState; } + +void DTKSetVolume(u8 left, u8 right) { + __DTKVolumeL = left; + __DTKVolumeR = right; + if (__DTKState == 1) { + AISetStreamVolLeft(left); + AISetStreamVolRight(right); + } +} |