Verified that audio has been initialized before playing sounds or ticking audio.

src/libsm64.c

@@ -144,6 +144,11 @@ SM64_LIB_FN void sm64_audio_init( uint8_t *rom ) {
 #define SAMPLES_LOW 528
 
 extern SM64_LIB_FN uint32_t sm64_audio_tick( uint32_t numQueuedSamples, uint32_t numDesiredSamples, int16_t *audio_buffer ) {
+    if ( !is_audio_initialized ) {
+        DEBUG_PRINT("Attempted to tick audio, but sm64_audio_init() has not been called yet.");
+        return 0;
+    }
+    
     update_game_sound();
 	
     u32 num_audio_samples = numQueuedSamples < numDesiredSamples ? SAMPLES_HIGH : SAMPLES_LOW;

src/load_audio_data.c

@@ -4,6 +4,8 @@
 #include "decomp/audio/load.h"
 #include "decomp/audio/load_dat.h"
 
+bool is_audio_initialized = false;
+
 extern void load_audio_banks( uint8_t *rom ) {
     uint8_t *rom2 = malloc( 0x800000 );
 
@@ -20,4 +22,6 @@ extern void load_audio_banks( uint8_t *rom ) {
     audio_init();  
     sound_init();
     sound_reset( 0 );
+    
+    is_audio_initialized = true;
 }

src/load_audio_data.h

@@ -2,4 +2,6 @@
 
 #include <stdint.h>
 
+extern bool is_audio_initialized;
+
 extern void load_audio_banks( uint8_t *rom );

src/play_sound.c

@@ -2,14 +2,17 @@
 
 #include "decomp/audio/external.h"
 #include "debug_print.h"
+#include "load_audio_data.h"
 
 SM64PlaySoundFunctionPtr g_play_sound_func = NULL;
 
 extern void play_sound( uint32_t soundBits, f32 *pos ) {
-    DEBUG_PRINT("$ play_sound(%d) request %d; pos %f %f %f\n", soundBits,sSoundRequestCount,pos[0],pos[1],pos[2]);
-    sSoundRequests[sSoundRequestCount].soundBits = soundBits;
-    sSoundRequests[sSoundRequestCount].position = pos;
-    sSoundRequestCount++;
+    if ( is_audio_initialized ) {
+        DEBUG_PRINT("$ play_sound(%d) request %d; pos %f %f %f\n", soundBits,sSoundRequestCount,pos[0],pos[1],pos[2]);
+        sSoundRequests[sSoundRequestCount].soundBits = soundBits;
+        sSoundRequests[sSoundRequestCount].position = pos;
+        sSoundRequestCount++;
+    }
 
     if ( g_play_sound_func ) {
         g_play_sound_func(soundBits, pos);