[ntsc-1.2] Match audio (#2122)

* general.c mostly ok

* match remaining audio funcs

* comments

* Finish matching audio

---------

Co-authored-by: engineer124 <engineer124engineer124@gmail.com>

src/audio/lib/seqplayer.c

@@ -435,6 +435,14 @@ void AudioSeq_SequencePlayerDisableAsFinished(SequencePlayer* seqPlayer) {
 }
 
 void AudioSeq_SequencePlayerDisable(SequencePlayer* seqPlayer) {
+    s32 finished = 0;
+
+#if PLATFORM_N64
+    if (seqPlayer->finished == 1) {
+        finished = 1;
+    }
+#endif
+
     AudioSeq_SequencePlayerDisableChannels(seqPlayer, 0xFFFF);
     Audio_NotePoolClear(&seqPlayer->notePool);
     if (!seqPlayer->enabled) {
@@ -449,6 +457,11 @@ void AudioSeq_SequencePlayerDisable(SequencePlayer* seqPlayer) {
     }
 
     if (AudioLoad_IsFontLoadComplete(seqPlayer->defaultFont)) {
+#if PLATFORM_N64
+        if (finished == 1) {
+            AudioHeap_ReleaseNotesForFont(seqPlayer->defaultFont);
+        }
+#endif
         AudioLoad_SetFontLoadStatus(seqPlayer->defaultFont, LOAD_STATUS_MAYBE_DISCARDABLE);
     }
 

src/audio/lib/synthesis.c

@@ -643,7 +643,13 @@ Acmd* AudioSynth_DoOneAudioUpdate(s16* aiBuf, s32 aiBufLen, Acmd* cmd, s32 updat
             aMix(cmd++, DMEM_2CH_SIZE >> 4, reverb->decayRatio + 0x8000, DMEM_WET_LEFT_CH, DMEM_WET_LEFT_CH);
 
             // Leak reverb between the left and right channels
-            if (reverb->leakRtl != 0 || reverb->leakLtr != 0) {
+
+#if PLATFORM_N64
+            if (((reverb->leakRtl != 0) || (reverb->leakLtr != 0)) && (gAudioCtx.soundMode != SOUNDMODE_MONO))
+#else
+            if ((reverb->leakRtl != 0) || (reverb->leakLtr != 0))
+#endif
+            {
                 cmd = AudioSynth_LeakReverb(cmd, reverb);
             }
 
@@ -778,6 +784,13 @@ Acmd* AudioSynth_ProcessNote(s32 noteIndex, NoteSubEu* noteSubEu, NoteSynthesisS
     nParts = noteSubEu->bitField1.hasTwoParts + 1;
     samplesLenFixedPoint = (resamplingRateFixedPoint * aiBufLen * 2) + synthState->samplePosFrac;
     numSamplesToLoad = samplesLenFixedPoint >> 16;
+
+#if PLATFORM_N64
+    if (numSamplesToLoad == 0) {
+        skipBytes = false;
+    }
+#endif
+
     synthState->samplePosFrac = samplesLenFixedPoint & 0xFFFF;
 
     // Partially-optimized out no-op ifs required for matching. SM64 decomp

src/audio/lib/thread.c

@@ -16,12 +16,19 @@ AudioTask* AudioThread_Update(void) {
     return AudioThread_UpdateImpl();
 }
 
+#if PLATFORM_N64
+static s32 sMaxAbiCmdCnt = 0x80;
+static AudioTask* sWaitingAudioTask = NULL;
+#endif
+
 /**
  * This is Audio_Update for the audio thread
  */
 AudioTask* AudioThread_UpdateImpl(void) {
+#if !PLATFORM_N64
     static s32 sMaxAbiCmdCnt = 0x80;
     static AudioTask* sWaitingAudioTask = NULL;
+#endif
     u32 samplesRemainingInAi;
     s32 abiCmdCnt;
     s32 pad;