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sm64pc
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Code Issues Releases Wiki Activity

created the audio thread

This commit is contained in:
KingOfSpadesJFK 2023-10-17 03:19:54 -07:00
parent 98aa0fe376
commit 2e06e25407
1 changed files with 53 additions and 20 deletions
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73
src/pc/pc_main.c
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@ -1,5 +1,9 @@
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h> //Header file for sleep(). man 3 sleep for details.
#include <pthread.h>
#include <time.h>
#include <errno.h>
#ifdef TARGET_WEB
#include <emscripten.h>
@ -56,10 +60,14 @@ static struct AudioAPI *audio_api;
static struct GfxWindowManagerAPI *wm_api;
static struct GfxRenderingAPI *rendering_api;
pthread_t audio_thread_id;
bool audio_thread_running = false;
extern void gfx_run(Gfx *commands);
extern void thread5_game_loop(void *arg);
extern void create_next_audio_buffer(s16 *samples, u32 num_samples);
void game_loop_one_iteration(void);
void* audio_thread();
void dispatch_audio_sptask(struct SPTask *spTask) {
}
@ -86,37 +94,60 @@ void send_display_list(struct SPTask *spTask) {
void produce_one_frame(void) {
gfx_start_frame();
const f32 master_mod = (f32)configMasterVolume / 127.0f;
set_sequence_player_volume(SEQ_PLAYER_LEVEL, (f32)configMusicVolume / 127.0f * master_mod);
set_sequence_player_volume(SEQ_PLAYER_SFX, (f32)configSfxVolume / 127.0f * master_mod);
set_sequence_player_volume(SEQ_PLAYER_ENV, (f32)configEnvVolume / 127.0f * master_mod);
game_loop_one_iteration();
thread6_rumble_loop(NULL);
int samples_left = audio_api->buffered();
u32 num_audio_samples = samples_left < audio_api->get_desired_buffered() ? SAMPLES_HIGH : SAMPLES_LOW;
//printf("Audio samples: %d %u\n", samples_left, num_audio_samples);
s16 audio_buffer[SAMPLES_HIGH * 2 * 2];
for (int i = 0; i < 2; i++) {
/*if (audio_cnt-- == 0) {
audio_cnt = 2;
}
u32 num_audio_samples = audio_cnt < 2 ? 528 : 544;*/
create_next_audio_buffer(audio_buffer + i * (num_audio_samples * 2), num_audio_samples);
}
//printf("Audio samples before submitting: %d\n", audio_api->buffered());
audio_api->play((u8 *)audio_buffer, 2 * num_audio_samples * 4);
gfx_end_frame();
}
// Seperate the audio thread from the main thread so that your ears won't bleed at a low framerate
// FIXME: Chance of a segfault when teleporting to a new level
void* audio_thread() {
const long framerateNano = 33333333L; // 33.333333 ms = 30 fps; run this thread 30 times a second like the original game
int napResult = 0;
struct timespec start_time;
struct timespec end_time;
while(audio_thread_running) {
clock_gettime(CLOCK_MONOTONIC, &start_time);
const f32 master_mod = (f32)configMasterVolume / 127.0f;
set_sequence_player_volume(SEQ_PLAYER_LEVEL, (f32)configMusicVolume / 127.0f * master_mod);
set_sequence_player_volume(SEQ_PLAYER_SFX, (f32)configSfxVolume / 127.0f * master_mod);
set_sequence_player_volume(SEQ_PLAYER_ENV, (f32)configEnvVolume / 127.0f * master_mod);
int samples_left = audio_api->buffered();
u32 num_audio_samples = samples_left < audio_api->get_desired_buffered() ? SAMPLES_HIGH : SAMPLES_LOW;
// printf("Audio samples: %d %u\n", samples_left, num_audio_samples);
s16 audio_buffer[SAMPLES_HIGH * 2 * 2];
for (int i = 0; i < 2; i++) {
/*if (audio_cnt-- == 0) {
audio_cnt = 2;
}
u32 num_audio_samples = audio_cnt < 2 ? 528 : 544;*/
if (!audio_thread_running) break;
create_next_audio_buffer(audio_buffer + i * (num_audio_samples * 2), num_audio_samples);
}
// printf("Audio samples before submitting: %d\n", audio_api->buffered());
if (!audio_thread_running) break;
audio_api->play((u8 *)audio_buffer, 2 * num_audio_samples * 4);
clock_gettime(CLOCK_MONOTONIC, &end_time);
long napTime = framerateNano - (end_time.tv_nsec - start_time.tv_nsec);
napResult = nanosleep((const struct timespec[]){{0, napTime}}, NULL);
if (napResult == -1) {
printf("interrupted by a signal handler\n");
}
}
return NULL;
}
void audio_shutdown(void) {
if (audio_api) {
if (audio_api->shutdown) audio_api->shutdown();
audio_api = NULL;
}
audio_thread_running = false;
pthread_join(audio_thread_id, NULL);
}
void game_deinit(void) {
@ -257,6 +288,8 @@ void main_func(void) {
emscripten_set_main_loop(em_main_loop, 0, 0);
request_anim_frame(on_anim_frame);
#else
audio_thread_running = true;
pthread_create(&audio_thread_id, NULL, audio_thread, NULL);
while (true) {
wm_api->main_loop(produce_one_frame);
#ifdef DISCORDRPC