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nishbox/engine/gf_audio.c
NishiOwO 03290d0553
add more func
2025-04-21 00:52:23 +09:00

276 lines
8.2 KiB
C
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#define GF_EXPOSE_AUDIO
#include <gf_pre.h>
/* External library */
#include <miniaudio.h>
#include <jar_xm.h>
#include <jar_mod.h>
/* Interface */
#include <gf_audio.h>
/* Engine */
#include <gf_log.h>
/* Standard */
#include <stdlib.h>
#include <string.h>
#include <math.h>
const char* gf_audio_mod_sig[] = {"M!K!", "M.K.", "FLT4", "FLT8", "4CHN", "6CHN", "8CHN", "10CH", "12CH", "14CH", "16CH", "18CH", "20CH", "22CH", "24CH", "26CH", "28CH", "30CH", "32CH"};
void gf_audio_callback(ma_device* dev, void* output, const void* input, ma_uint32 frame) {
gf_audio_id_t i;
gf_audio_t* audio = dev->pUserData;
ma_int16* out = (ma_int16*)output;
float* tmp = malloc(sizeof(*tmp) * frame * 2);
int unlocked = 0;
for(i = 0; i < frame; i++) {
tmp[2 * i + 0] = 0;
tmp[2 * i + 1] = 0;
}
ma_mutex_lock(audio->mutex);
for(i = 0; i < GF_AUDIO_MAX_DECODERS; i++) {
if(audio->decoder[i].used == 1 && audio->decoder[i].decoder != NULL) {
ma_uint64 readframe;
int j;
ma_int16* r = malloc(sizeof(*r) * frame * 2);
ma_decoder_read_pcm_frames(audio->decoder[i].decoder, r, frame, &readframe);
for(j = 0; j < readframe; j++) {
tmp[2 * j + 0] += (double)r[2 * j + 0] / 32768.0;
tmp[2 * j + 1] += (double)r[2 * j + 1] / 32768.0;
}
free(r);
if(frame > readframe) {
ma_mutex_unlock(audio->mutex);
unlocked = 1;
gf_audio_decoder_destroy(&audio->decoder[i]);
}
} else if(audio->decoder[i].used == 1 && audio->decoder[i].xm != NULL) {
int j;
int gotframe;
float* r = malloc(sizeof(*r) * frame * 2);
jar_xm_generate_samples(audio->decoder[i].xm, r, frame);
gotframe = audio->decoder[i].samples > frame ? frame : audio->decoder[i].samples;
for(j = 0; j < gotframe; j++) {
tmp[2 * j + 0] += (double)r[2 * j + 0];
tmp[2 * j + 1] += (double)r[2 * j + 1];
}
free(r);
audio->decoder[i].samples -= frame;
if(audio->decoder[i].samples <= 0) {
ma_mutex_unlock(audio->mutex);
unlocked = 1;
gf_audio_decoder_destroy(&audio->decoder[i]);
}
} else if(audio->decoder[i].used == 1 && audio->decoder[i].mod != NULL) {
int j;
int gotframe;
ma_int16* r = malloc(sizeof(*r) * frame * 2);
jar_mod_fillbuffer(audio->decoder[i].mod, r, frame, NULL);
gotframe = audio->decoder[i].samples > frame ? frame : audio->decoder[i].samples;
for(j = 0; j < gotframe; j++) {
tmp[2 * j + 0] += (double)r[2 * j + 0] / 32768.0;
tmp[2 * j + 1] += (double)r[2 * j + 1] / 32768.0;
}
free(r);
audio->decoder[i].samples -= frame;
if(audio->decoder[i].samples <= 0) {
ma_mutex_unlock(audio->mutex);
unlocked = 1;
gf_audio_decoder_destroy(&audio->decoder[i]);
}
}
}
if(!unlocked) ma_mutex_unlock(audio->mutex);
for(i = 0; i < frame; i++) {
out[2 * i + 0] = tmp[2 * i + 0] * 32768;
out[2 * i + 1] = tmp[2 * i + 1] * 32768;
}
free(tmp);
}
gf_audio_id_t gf_audio_load(gf_audio_t* audio, const void* data, size_t size) {
gf_audio_id_t i;
ma_mutex_lock(audio->mutex);
for(i = 0; i < GF_AUDIO_MAX_DECODERS; i++) {
if(audio->decoder[i].used == 0) {
int xm_cond = size > 37 && memcmp(data, "Extended Module: ", 17) == 0 && ((char*)data)[37] == 0x1a;
int mod_cond = size > 1080;
if(mod_cond) {
int j;
int mod_sig_cond = 0;
for(j = 0; j < sizeof(gf_audio_mod_sig) / sizeof(gf_audio_mod_sig[0]); j++) {
mod_sig_cond = mod_sig_cond || (memcmp(data + 1080, gf_audio_mod_sig[j], 4) == 0);
}
mod_cond = mod_cond && mod_sig_cond;
}
if(xm_cond) {
if(jar_xm_create_context_safe(&audio->decoder[i].xm, data, size, audio->device_config.sampleRate) == 0) {
audio->decoder[i].samples = jar_xm_get_remaining_samples(audio->decoder[i].xm);
audio->decoder[i].used = -1;
ma_mutex_unlock(audio->mutex);
return i;
}
audio->decoder[i].xm = NULL;
} else if(mod_cond) {
audio->decoder[i].mod = malloc(sizeof(*audio->decoder[i].mod));
jar_mod_init(audio->decoder[i].mod);
jar_mod_setcfg(audio->decoder[i].mod, audio->device_config.sampleRate, 16, 1, 0, 0);
if(jar_mod_load(audio->decoder[i].mod, (void*)data, size)) {
audio->decoder[i].samples = jar_mod_max_samples(audio->decoder[i].mod);
audio->decoder[i].used = -1;
ma_mutex_unlock(audio->mutex);
return i;
}
free(audio->decoder[i].mod);
audio->decoder[i].mod = NULL;
}
audio->decoder[i].decoder = malloc(sizeof(*audio->decoder[i].decoder));
if(ma_decoder_init_memory(data, size, &audio->decoder[i].decoder_config, audio->decoder[i].decoder) == MA_SUCCESS) {
audio->decoder[i].used = -1;
ma_mutex_unlock(audio->mutex);
return i;
}
free(audio->decoder[i].decoder);
audio->decoder[i].decoder = NULL;
ma_mutex_unlock(audio->mutex);
return -1;
}
}
ma_mutex_unlock(audio->mutex);
return -1;
}
gf_audio_id_t gf_audio_load_file(gf_audio_t* audio, const char* path) {
FILE* f = fopen(path, "rb");
size_t sz;
unsigned char* data;
gf_audio_id_t st;
if(f == NULL) return -1;
fseek(f, 0, SEEK_END);
sz = ftell(f);
fseek(f, 0, SEEK_SET);
data = malloc(sz);
fread(data, sz, 1, f);
st = gf_audio_load(audio, data, sz);
fclose(f);
return st;
}
gf_audio_t* gf_audio_create(gf_engine_t* engine) {
gf_audio_t* audio = malloc(sizeof(*audio));
int i;
memset(audio, 0, sizeof(*audio));
audio->engine = engine;
audio->device_config = ma_device_config_init(ma_device_type_playback);
audio->device_config.playback.format = ma_format_s16;
audio->device_config.playback.channels = 2;
audio->device_config.sampleRate = 44100;
audio->device_config.dataCallback = gf_audio_callback;
audio->device_config.pUserData = audio;
for(i = 0; i < GF_AUDIO_MAX_DECODERS; i++) {
audio->decoder[i].used = 0;
audio->decoder[i].audio = NULL;
audio->decoder[i].decoder = NULL;
audio->decoder[i].xm = NULL;
audio->decoder[i].mod = NULL;
audio->decoder[i].decoder_config = ma_decoder_config_init(audio->device_config.playback.format, audio->device_config.playback.channels, audio->device_config.sampleRate);
}
audio->device = malloc(sizeof(*audio->device));
if(ma_device_init(NULL, &audio->device_config, audio->device) != MA_SUCCESS) {
gf_log_function(engine, "Failed to open playback device", "");
free(audio->device);
audio->device = NULL;
gf_audio_destroy(audio);
return NULL;
}
audio->mutex = malloc(sizeof(*audio->mutex));
if(ma_mutex_init(audio->mutex) != MA_SUCCESS) {
gf_log_function(engine, "Failed to create mutex", "");
free(audio->mutex);
audio->mutex = NULL;
gf_audio_destroy(audio);
return NULL;
}
if(ma_device_start(audio->device) != MA_SUCCESS) {
gf_log_function(engine, "Failed to start playback device", "");
gf_audio_destroy(audio);
return NULL;
}
for(i = 0; i < GF_AUDIO_MAX_DECODERS; i++) {
audio->decoder[i].audio = audio;
}
gf_log_function(engine, "Audio interface started, max %d decoders", GF_AUDIO_MAX_DECODERS);
return audio;
}
void gf_audio_decoder_destroy(gf_audio_decoder_t* decoder) {
ma_mutex_lock(decoder->audio->mutex);
if(decoder->decoder != NULL) {
ma_decoder_uninit(decoder->decoder);
free(decoder->decoder);
decoder->decoder = NULL;
}
if(decoder->xm != NULL) {
jar_xm_free_context(decoder->xm);
decoder->xm = NULL;
}
if(decoder->mod != NULL) {
jar_mod_unload(decoder->mod);
free(decoder->mod);
decoder->mod = NULL;
}
decoder->used = 0;
ma_mutex_unlock(decoder->audio->mutex);
}
void gf_audio_destroy(gf_audio_t* audio) {
int i;
if(audio->device != NULL) {
ma_device_uninit(audio->device);
free(audio->device);
}
if(audio->mutex != NULL) {
ma_mutex_uninit(audio->mutex);
free(audio->mutex);
}
for(i = 0; i < GF_AUDIO_MAX_DECODERS; i++) {
gf_audio_decoder_destroy(&audio->decoder[i]);
}
gf_log_function(audio->engine, "Destroyed audio interface", "");
free(audio);
}
void gf_audio_resume(gf_audio_t* audio, gf_audio_id_t id) {
ma_mutex_lock(audio->mutex);
if(audio->decoder[id].used != 0) audio->decoder[id].used = 1;
ma_mutex_unlock(audio->mutex);
}
void gf_audio_pause(gf_audio_t* audio, gf_audio_id_t id) {
ma_mutex_lock(audio->mutex);
if(audio->decoder[id].used != 0) audio->decoder[id].used = -1;
ma_mutex_unlock(audio->mutex);
}
void gf_audio_stop(gf_audio_t* audio, gf_audio_id_t id) { gf_audio_decoder_destroy(&audio->decoder[id]); }
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