curioustorvald/tsvm
1
0
Fork 0
mirror of https://github.com/curioustorvald/tsvm.git synced 2026-06-10 06:54:04 +09:00
Code Issues Packages Projects Releases Wiki Activity

audio: getFreePlayhead()

Browse Source
This commit is contained in:
minjaesong
2026-06-07 02:21:21 +09:00
parent 3444bdf63b
commit aa45c2194f
11 changed files with 124 additions and 81 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
assets/disk0/tvdos/bin/playpcm.js
View File

@@ -23,10 +23,14 @@ function bytesToSec(i) { return i / byterate }
seqread.prepare(filePath)
const readPtr = sys.malloc(BLOCK_SIZE)
audio.resetParams(0)
audio.purgeQueue(0)
audio.setPcmMode(0)
audio.setMasterVolume(0, 255)
// Occupy the first idle playhead rather than always grabbing #0, so playback
// doesn't cut off audio already running on another playhead. Falls back to #0
// when all four are busy.
const PLAYHEAD = audio.getFreePlayhead(0)
audio.resetParams(PLAYHEAD)
audio.purgeQueue(PLAYHEAD)
audio.setPcmMode(PLAYHEAD)
audio.setMasterVolume(PLAYHEAD, 255)
if (interactive) {
gui.audioInit({
@@ -42,7 +46,7 @@ try {
while (!stopPlay && seqread.getReadCount() < FILE_SIZE && readLength > 0) {
if (interactive && gui.audioIsExitRequested()) { stopPlay = true; break }
const queueSize = audio.getPosition(0)
const queueSize = audio.getPosition(PLAYHEAD)
if (queueSize <= 1) {
for (let repeat = QUEUE_MAX - queueSize; repeat > 0; repeat--) {
const remainingBytes = FILE_SIZE - seqread.getReadCount()
@@ -54,13 +58,13 @@ try {
// Raw PCMu8 stereo — sampleCount = bytes / 2.
if (interactive) gui.audioFeedPcm(readPtr, readLength >> 1)
audio.putPcmDataByPtr(0, readPtr, readLength, 0)
audio.setSampleUploadLength(0, readLength)
audio.startSampleUpload(0)
audio.putPcmDataByPtr(PLAYHEAD, readPtr, readLength, 0)
audio.setSampleUploadLength(PLAYHEAD, readLength)
audio.startSampleUpload(PLAYHEAD)
if (repeat > 1) sys.sleep(10)
}
audio.play(0)
audio.play(PLAYHEAD)
}
if (interactive) {