384 lines
7.9 KiB
C
Executable file
384 lines
7.9 KiB
C
Executable file
#include "sound.h"
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#include "resources.h"
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#include <stdlib.h>
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#include "log.h"
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#include "string.h"
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#include "math.h"
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#include "limits.h"
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#include "time.h"
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#include "music.h"
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#include "SDL2/SDL.h"
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#include "mix.h"
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#include "dsp.h"
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#define DR_WAV_IMPLEMENTATION
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#include "dr_wav.h"
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#define DR_MP3_IMPLEMENTATION
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#include "dr_mp3.h"
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#include "portaudio.h"
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#include "circbuf.h"
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#define TSF_IMPLEMENTATION
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#include "tsf.h"
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#define TML_IMPLEMENTATION
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#include "tml.h"
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const char *audioDriver;
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struct sound *mus_cur;
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struct circbuf vidbuf;
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drmp3 mp3;
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struct wav mwav;
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struct sound wavsound;
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struct wav sin440;
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struct sound a440;
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int vidplaying = 0;
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struct wav change_samplerate(struct wav w, int rate)
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{
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printf("Going from sr %i to sr %i.\n", w.samplerate, rate);
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SDL_AudioStream *stream = SDL_NewAudioStream(AUDIO_S16, w.ch, w.samplerate, AUDIO_S16, w.ch, rate);
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SDL_AudioStreamPut(stream, w.data, w.frames*w.ch*sizeof(short));
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int oldframes = w.frames;
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w.frames *= (float)rate/w.samplerate;
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printf("Went from %i to %i frames.\n", oldframes, w.frames);
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w.samplerate = rate;
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int samples = sizeof(short)*w.ch*w.frames;
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short *new = malloc(samples);
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SDL_AudioStreamGet(stream, new, samples);
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free(w.data);
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w.data = new;
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SDL_FreeAudioStream(stream);
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return w;
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}
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static int patestCallback(const void *inputBuffer, void *outputBuffer, unsigned long framesPerBuffer, const PaStreamCallbackTimeInfo *timeInfo, PaStreamCallbackFlags statusFlags, void *userData)
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{
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/* Cast data passed through stream to our structure. */
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short *out = (short*)outputBuffer;
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bus_fill_buffers(outputBuffer, framesPerBuffer);
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return 0;
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}
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void check_pa_err(PaError e)
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{
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if (e != paNoError) {
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YughError("PA Error: %s", Pa_GetErrorText(e));
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exit(1);
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}
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}
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static PaStream *stream_def;
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void normalize_gain(struct wav *w, double lv)
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{
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short tarmax = pow(10, lv/20.f) * SHRT_MAX;
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short max = 0;
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short *s = w->data;
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for (int i = 0; i < w->frames; i++) {
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for (int j = 0; j < w->ch; j++) {
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max = (abs(s[i*w->ch + j]) > max) ? abs(s[i*w->ch + j]) : max;
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}
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}
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w->gain = log10((float)tarmax/max) * 20;
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}
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struct osc sin600;
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struct osc sin20;
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struct dsp_ammod dspammod;
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struct dsp_delay dspdel;
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struct wav s600wav;
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struct sound s600wavsound;
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void sound_init()
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{
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vidbuf = circbuf_init(sizeof(short), 262144);
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mwav.data = drwav_open_file_and_read_pcm_frames_s16("sounds/alert.wav", &mwav.ch, &mwav.samplerate, &mwav.frames, NULL);
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mwav.gain = 0;
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printf("Loaded wav: ch %i, sr %i, fr %i.\n", mwav.ch, mwav.samplerate, mwav.frames);
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// mwav = change_samplerate(mwav, 48000);
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//mwav = gen_square(1, 150, 48000, 2);
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wavsound.data = &mwav;
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wavsound.loop = 1;
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normalize_gain(&mwav, -3);
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//play_sound(&wavsound);
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sin440 = gen_sine(0.4f, 30, SAMPLERATE, 2);
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a440.data = &sin440;
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a440.loop = 1;
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//play_sound(&a440);
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printf("Playing wav with %i frames.\n", wavsound.data->frames);
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sin600.f = tri_phasor;
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sin600.p = phasor_make(SAMPLERATE, 200);
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sin20.f = square_phasor;
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sin20.p.sr = SAMPLERATE;
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sin20.p.freq = 4;
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s600wav = gen_sine(0.6f, 600, SAMPLERATE, CHANNELS);
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s600wavsound.loop = -1;
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s600wavsound.data = &s600wav;
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struct dsp_filter s600;
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s600.data = &s600wavsound;
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s600.filter = sound_fillbuf;
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struct dsp_filter s20;
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s20.data = &sin20;
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s20.filter = osc_fillbuf;
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struct dsp_filter am_filter;
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am_filter.filter = am_mod;
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am_filter.data = &dspammod;
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dspdel = dsp_delay_make(150);
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dspdel.in = am_filter;
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struct dsp_filter del_filter;
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del_filter.filter = dsp_delay_filbuf;
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del_filter.data = &dspdel;
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struct dsp_filter ad = make_adsr(50, 200, 500, 100);
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dspammod.ina = s600;
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dspammod.inb = ad;
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first_free_bus(am_filter);
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struct dsp_filter wn;
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wn.filter = gen_pinknoise;
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//first_free_bus(wn);
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/*
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if (!drmp3_init_file(&mp3, "sounds/circus.mp3", NULL)) {
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YughError("Could not open mp3.",0);
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}
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printf("CIrcus mp3 channels: %ui, samplerate: %ui\n", mp3.channels, mp3.sampleRate);
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*/
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PaError err = Pa_Initialize();
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check_pa_err(err);
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int numDevices = Pa_GetDeviceCount();
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const PaDeviceInfo *deviceInfo;
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for (int i = 0; i < numDevices; i++) {
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deviceInfo = Pa_GetDeviceInfo(i);
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// printf("Device %i: channels %i, sample rate %f, name %s\n", i, deviceInfo->maxOutputChannels, deviceInfo->defaultSampleRate, deviceInfo->name);
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}
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PaStreamParameters outparams;
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/*
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outparams.channelCount = 2;
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outparams.device = 19;
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outparams.sampleFormat = paInt16;
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outparams.suggestedLatency = Pa_GetDeviceInfo(outparams.device)->defaultLowOutputLatency;
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outparams.hostApiSpecificStreamInfo = NULL;
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*/
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//err = Pa_OpenStream(&stream_def, NULL, &outparams, 48000, 4096, paNoFlag, patestCallback, &data);
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err = Pa_OpenDefaultStream(&stream_def, 0, 2, paInt16, SAMPLERATE, BUF_FRAMES, patestCallback, NULL);
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check_pa_err(err);
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err = Pa_StartStream(stream_def);
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check_pa_err(err);
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play_song("", "");
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}
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void audio_open(const char *device)
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{
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//Mix_OpenAudioDevice(44100, MIX_DEFAULT_FORMAT, 2, 2048, device, 0);
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}
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void audio_close()
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{
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//Mix_CloseAudio();
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}
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struct sound *make_sound(const char *wav)
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{
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struct sound *new = calloc(1, sizeof(struct sound));
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/* ma_result res = ma_sound_init_from_file(&engine, wav, 0, NULL, NULL, &new->sound);
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if (res != MA_SUCCESS) {
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printf("HONO!!!!");
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}
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*/
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return new;
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}
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struct sound *make_music(const char *ogg)
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{
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struct sound *sound = calloc(1, sizeof(struct sound));
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// ma_result res = ma_sound_init_from_file(&engine, ogg, 0, NULL, &mus_grp, &sound->sound);
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return sound;
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}
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void play_music(struct sound *music)
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{
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//ma_sound_start(&music->sound);
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//music->state = MUS_PLAY;
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// mus_cur = music;
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}
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void music_set(struct sound *music)
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{
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}
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void music_volume(unsigned char vol)
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{
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// ma_sound_group_set_volume(&mus_grp, (float)vol/127);
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}
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int music_playing()
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{
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//return ma_sound_is_playing(&mus_cur->sound);
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return 0;
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}
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int music_paused()
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{
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// return mus_cur->state == MUS_PAUSE;
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return 0;
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}
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void music_resume()
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{
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// ma_sound_start(&mus_cur->sound);
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}
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void music_pause()
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{
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//ma_sound_stop(&mus_cur->sound);
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//mus_cur->state = MUS_PAUSE;
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}
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void music_stop()
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{
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// ma_sound_stop(&mus_cur->sound);
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// mus_cur->state = MUS_STOP;
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// ma_sound_seek_to_pcm_frame(&mus_cur->sound, 0);
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}
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void audio_init()
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{
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//audioDriver = SDL_GetAudioDeviceName(0,0);
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}
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void close_audio_device(int device)
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{
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//SDL_CloseAudioDevice(device);
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}
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int open_device(const char *adriver)
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{
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/*
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SDL_AudioSpec audio_spec;
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SDL_memset(&audio_spec, 0, sizeof(audio_spec));
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audio_spec.freq = SAMPLERATE;
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audio_spec.format = AUDIO_F32;
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audio_spec.channels = 2;
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audio_spec.samples = BUF_FRAMES;
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int dev = (int) SDL_OpenAudioDevice(adriver, 0, &audio_spec, NULL, 0);
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SDL_PauseAudioDevice(dev, 0);
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return dev;
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*/
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return 0;
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}
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void play_sound(struct sound *sound)
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{
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sound->frame = 0;
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//struct bus *b = first_free_bus(sound, sound_fillbuf);
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}
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void sound_fillbuf(struct sound *s, short *buf, int n)
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{
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short *in = s->data->data;
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for (int i = 0; i < n; i++) {
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for (int j = 0; j < 2; j++) {
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buf[i*2+j] = in[s->frame+j];
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}
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s->frame++;
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if (s->frame == s->data->frames) {
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s->frame = 0;
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if (s->loop > 0) {
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s->loop--;
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}
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}
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}
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}
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struct soundstream soundstream_make()
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{
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struct soundstream new;
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new.buf = circbuf_init(sizeof(short), BUF_FRAMES*CHANNELS*2);
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return new;
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}
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void soundstream_fillbuf(struct soundstream *s, short *buf, int n)
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{
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int max = s->buf.write - s->buf.read;
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int lim = (max < n*CHANNELS) ? max : n*CHANNELS;
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for (int i = 0; i < lim; i++) {
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buf[i] = cbuf_shift(&s->buf);
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}
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}
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