466 lines
15 KiB
C++
466 lines
15 KiB
C++
#ifndef JA_USESDLMIXER
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#include "jail_audio.h"
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#include <SDL3/SDL.h> // Para SDL_AudioFormat, SDL_BindAudioStream, SDL_Se...
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#include <stdint.h> // Para uint32_t, uint8_t
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#include <stdio.h> // Para NULL, fseek, printf, fclose, fopen, fread
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#include <stdlib.h> // Para free, malloc
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#include <string.h> // Para strcpy, strlen
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#include "stb_vorbis.h" // Para stb_vorbis_decode_memory
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#define JA_MAX_SIMULTANEOUS_CHANNELS 20
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#define JA_MAX_GROUPS 2
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struct JA_Sound_t {
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SDL_AudioSpec spec{SDL_AUDIO_S16, 2, 48000};
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Uint32 length{0};
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Uint8 *buffer{NULL};
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};
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struct JA_Channel_t {
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JA_Sound_t *sound{nullptr};
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int pos{0};
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int times{0};
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int group{0};
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SDL_AudioStream *stream{nullptr};
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JA_Channel_state state{JA_CHANNEL_FREE};
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};
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struct JA_Music_t {
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SDL_AudioSpec spec{SDL_AUDIO_S16, 2, 48000};
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Uint32 length{0};
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Uint8 *buffer{nullptr};
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char *filename{nullptr};
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int pos{0};
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int times{0};
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SDL_AudioStream *stream{nullptr};
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JA_Music_state state{JA_MUSIC_INVALID};
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};
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JA_Music_t *current_music{nullptr};
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JA_Channel_t channels[JA_MAX_SIMULTANEOUS_CHANNELS];
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SDL_AudioSpec JA_audioSpec{SDL_AUDIO_S16, 2, 48000};
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float JA_musicVolume{1.0f};
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float JA_soundVolume[JA_MAX_GROUPS];
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bool JA_musicEnabled{true};
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bool JA_soundEnabled{true};
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SDL_AudioDeviceID sdlAudioDevice{0};
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SDL_TimerID JA_timerID{0};
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bool fading = false;
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int fade_start_time;
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int fade_duration;
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int fade_initial_volume;
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Uint32 JA_UpdateCallback(void *userdata, SDL_TimerID timerID, Uint32 interval) {
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if (JA_musicEnabled && current_music && current_music->state == JA_MUSIC_PLAYING) {
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if (fading) {
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int time = SDL_GetTicks();
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if (time > (fade_start_time + fade_duration)) {
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fading = false;
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JA_StopMusic();
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return 30;
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} else {
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const int time_passed = time - fade_start_time;
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const float percent = (float)time_passed / (float)fade_duration;
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SDL_SetAudioStreamGain(current_music->stream, JA_musicVolume * (1.0 - percent));
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}
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}
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if (current_music->times != 0) {
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if ((Uint32)SDL_GetAudioStreamAvailable(current_music->stream) < (current_music->length / 2)) {
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SDL_PutAudioStreamData(current_music->stream, current_music->buffer, current_music->length);
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}
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if (current_music->times > 0)
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current_music->times--;
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} else {
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if (SDL_GetAudioStreamAvailable(current_music->stream) == 0)
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JA_StopMusic();
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}
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}
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if (JA_soundEnabled) {
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for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; ++i)
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if (channels[i].state == JA_CHANNEL_PLAYING) {
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if (channels[i].times != 0) {
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if ((Uint32)SDL_GetAudioStreamAvailable(channels[i].stream) < (channels[i].sound->length / 2)) {
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SDL_PutAudioStreamData(channels[i].stream, channels[i].sound->buffer, channels[i].sound->length);
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if (channels[i].times > 0)
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channels[i].times--;
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}
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} else {
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if (SDL_GetAudioStreamAvailable(channels[i].stream) == 0)
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JA_StopChannel(i);
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}
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}
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}
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return 30;
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}
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void JA_Init(const int freq, const SDL_AudioFormat format, const int num_channels) {
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#ifdef DEBUG
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SDL_SetLogPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_DEBUG);
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#endif
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SDL_Log("Iniciant JailAudio...");
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JA_audioSpec = {format, num_channels, freq};
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if (!sdlAudioDevice)
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SDL_CloseAudioDevice(sdlAudioDevice);
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sdlAudioDevice = SDL_OpenAudioDevice(SDL_AUDIO_DEVICE_DEFAULT_PLAYBACK, &JA_audioSpec);
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SDL_Log((sdlAudioDevice == 0) ? "Failed to initialize SDL audio!\n" : "OK!\n");
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for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; ++i)
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channels[i].state = JA_CHANNEL_FREE;
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for (int i = 0; i < JA_MAX_GROUPS; ++i)
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JA_soundVolume[i] = 0.5f;
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// SDL_PauseAudioDevice(sdlAudioDevice);
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JA_timerID = SDL_AddTimer(30, JA_UpdateCallback, nullptr);
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}
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void JA_Quit() {
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if (JA_timerID)
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SDL_RemoveTimer(JA_timerID);
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if (!sdlAudioDevice)
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SDL_CloseAudioDevice(sdlAudioDevice);
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sdlAudioDevice = 0;
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}
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JA_Music_t *JA_LoadMusic(Uint8 *buffer, Uint32 length) {
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JA_Music_t *music = new JA_Music_t();
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int chan, samplerate;
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short *output;
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music->length = stb_vorbis_decode_memory(buffer, length, &chan, &samplerate, &output) * chan * 2;
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music->spec.channels = chan;
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music->spec.freq = samplerate;
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music->spec.format = SDL_AUDIO_S16;
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music->buffer = (Uint8 *)SDL_malloc(music->length);
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SDL_memcpy(music->buffer, output, music->length);
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free(output);
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music->pos = 0;
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music->state = JA_MUSIC_STOPPED;
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return music;
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}
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JA_Music_t *JA_LoadMusic(const char *filename) {
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// [RZC 28/08/22] Carreguem primer el arxiu en memòria i després el descomprimim. Es algo més rapid.
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FILE *f = fopen(filename, "rb");
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fseek(f, 0, SEEK_END);
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long fsize = ftell(f);
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fseek(f, 0, SEEK_SET);
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Uint8 *buffer = (Uint8 *)malloc(fsize + 1);
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if (fread(buffer, fsize, 1, f) != 1)
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return NULL;
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fclose(f);
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JA_Music_t *music = JA_LoadMusic(buffer, fsize);
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music->filename = (char *)malloc(strlen(filename) + 1);
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strcpy(music->filename, filename);
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free(buffer);
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return music;
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}
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void JA_PlayMusic(JA_Music_t *music, const int loop) {
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if (!JA_musicEnabled)
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return;
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JA_StopMusic();
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current_music = music;
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current_music->pos = 0;
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current_music->state = JA_MUSIC_PLAYING;
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current_music->times = loop;
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current_music->stream = SDL_CreateAudioStream(¤t_music->spec, &JA_audioSpec);
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if (!SDL_PutAudioStreamData(current_music->stream, current_music->buffer, current_music->length))
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printf("[ERROR] SDL_PutAudioStreamData failed!\n");
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SDL_SetAudioStreamGain(current_music->stream, JA_musicVolume);
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if (!SDL_BindAudioStream(sdlAudioDevice, current_music->stream))
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printf("[ERROR] SDL_BindAudioStream failed!\n");
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// SDL_ResumeAudioStreamDevice(current_music->stream);
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}
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char *JA_GetMusicFilename(JA_Music_t *music) {
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if (!music)
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music = current_music;
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return music->filename;
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}
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void JA_PauseMusic() {
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if (!JA_musicEnabled)
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return;
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if (!current_music || current_music->state == JA_MUSIC_INVALID)
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return;
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current_music->state = JA_MUSIC_PAUSED;
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// SDL_PauseAudioStreamDevice(current_music->stream);
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SDL_UnbindAudioStream(current_music->stream);
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}
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void JA_ResumeMusic() {
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if (!JA_musicEnabled)
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return;
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if (!current_music || current_music->state == JA_MUSIC_INVALID)
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return;
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current_music->state = JA_MUSIC_PLAYING;
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// SDL_ResumeAudioStreamDevice(current_music->stream);
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SDL_BindAudioStream(sdlAudioDevice, current_music->stream);
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}
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void JA_StopMusic() {
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if (!JA_musicEnabled)
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return;
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if (!current_music || current_music->state == JA_MUSIC_INVALID)
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return;
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current_music->pos = 0;
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current_music->state = JA_MUSIC_STOPPED;
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// SDL_PauseAudioStreamDevice(current_music->stream);
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SDL_DestroyAudioStream(current_music->stream);
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current_music->stream = nullptr;
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free(current_music->filename);
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current_music->filename = nullptr;
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}
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void JA_FadeOutMusic(const int milliseconds) {
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if (!JA_musicEnabled)
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return;
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if (current_music == NULL || current_music->state == JA_MUSIC_INVALID)
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return;
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fading = true;
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fade_start_time = SDL_GetTicks();
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fade_duration = milliseconds;
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fade_initial_volume = JA_musicVolume;
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}
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JA_Music_state JA_GetMusicState() {
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if (!JA_musicEnabled)
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return JA_MUSIC_DISABLED;
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if (!current_music)
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return JA_MUSIC_INVALID;
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return current_music->state;
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}
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void JA_DeleteMusic(JA_Music_t *music) {
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if (current_music == music)
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current_music = nullptr;
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SDL_free(music->buffer);
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if (music->stream)
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SDL_DestroyAudioStream(music->stream);
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delete music;
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}
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float JA_SetMusicVolume(float volume) {
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JA_musicVolume = SDL_clamp(volume, 0.0f, 1.0f);
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if (current_music)
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SDL_SetAudioStreamGain(current_music->stream, JA_musicVolume);
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return JA_musicVolume;
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}
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void JA_SetMusicPosition(float value) {
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if (!current_music)
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return;
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current_music->pos = value * current_music->spec.freq;
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}
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float JA_GetMusicPosition() {
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if (!current_music)
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return 0;
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return float(current_music->pos) / float(current_music->spec.freq);
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}
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void JA_EnableMusic(const bool value) {
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if (!value && current_music && (current_music->state == JA_MUSIC_PLAYING))
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JA_StopMusic();
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JA_musicEnabled = value;
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}
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JA_Sound_t *JA_NewSound(Uint8 *buffer, Uint32 length) {
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JA_Sound_t *sound = new JA_Sound_t();
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sound->buffer = buffer;
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sound->length = length;
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return sound;
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}
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JA_Sound_t *JA_LoadSound(uint8_t *buffer, uint32_t size) {
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JA_Sound_t *sound = new JA_Sound_t();
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SDL_LoadWAV_IO(SDL_IOFromMem(buffer, size), 1, &sound->spec, &sound->buffer, &sound->length);
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return sound;
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}
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JA_Sound_t *JA_LoadSound(const char *filename) {
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JA_Sound_t *sound = new JA_Sound_t();
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SDL_LoadWAV(filename, &sound->spec, &sound->buffer, &sound->length);
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return sound;
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}
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int JA_PlaySound(JA_Sound_t *sound, const int loop, const int group) {
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if (!JA_soundEnabled)
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return -1;
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int channel = 0;
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while (channel < JA_MAX_SIMULTANEOUS_CHANNELS && channels[channel].state != JA_CHANNEL_FREE) {
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channel++;
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}
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if (channel == JA_MAX_SIMULTANEOUS_CHANNELS)
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channel = 0;
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JA_StopChannel(channel);
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channels[channel].sound = sound;
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channels[channel].times = loop;
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channels[channel].pos = 0;
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channels[channel].state = JA_CHANNEL_PLAYING;
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channels[channel].stream = SDL_CreateAudioStream(&channels[channel].sound->spec, &JA_audioSpec);
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SDL_PutAudioStreamData(channels[channel].stream, channels[channel].sound->buffer, channels[channel].sound->length);
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SDL_SetAudioStreamGain(channels[channel].stream, JA_soundVolume[group]);
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SDL_BindAudioStream(sdlAudioDevice, channels[channel].stream);
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return channel;
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}
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int JA_PlaySoundOnChannel(JA_Sound_t *sound, const int channel, const int loop, const int group) {
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if (!JA_soundEnabled)
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return -1;
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if (channel < 0 || channel >= JA_MAX_SIMULTANEOUS_CHANNELS)
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return -1;
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JA_StopChannel(channel);
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channels[channel].sound = sound;
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channels[channel].times = loop;
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channels[channel].pos = 0;
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channels[channel].state = JA_CHANNEL_PLAYING;
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channels[channel].stream = SDL_CreateAudioStream(&channels[channel].sound->spec, &JA_audioSpec);
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SDL_PutAudioStreamData(channels[channel].stream, channels[channel].sound->buffer, channels[channel].sound->length);
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SDL_SetAudioStreamGain(channels[channel].stream, JA_soundVolume[group]);
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SDL_BindAudioStream(sdlAudioDevice, channels[channel].stream);
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return channel;
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}
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void JA_DeleteSound(JA_Sound_t *sound) {
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for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) {
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if (channels[i].sound == sound)
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JA_StopChannel(i);
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}
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SDL_free(sound->buffer);
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delete sound;
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}
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void JA_PauseChannel(const int channel) {
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if (!JA_soundEnabled)
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return;
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if (channel == -1) {
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for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++)
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if (channels[i].state == JA_CHANNEL_PLAYING) {
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channels[i].state = JA_CHANNEL_PAUSED;
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// SDL_PauseAudioStreamDevice(channels[i].stream);
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SDL_UnbindAudioStream(channels[i].stream);
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}
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} else if (channel >= 0 && channel < JA_MAX_SIMULTANEOUS_CHANNELS) {
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if (channels[channel].state == JA_CHANNEL_PLAYING) {
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channels[channel].state = JA_CHANNEL_PAUSED;
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// SDL_PauseAudioStreamDevice(channels[channel].stream);
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SDL_UnbindAudioStream(channels[channel].stream);
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}
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}
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}
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void JA_ResumeChannel(const int channel) {
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if (!JA_soundEnabled)
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return;
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if (channel == -1) {
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for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++)
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if (channels[i].state == JA_CHANNEL_PAUSED) {
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channels[i].state = JA_CHANNEL_PLAYING;
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// SDL_ResumeAudioStreamDevice(channels[i].stream);
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SDL_BindAudioStream(sdlAudioDevice, channels[i].stream);
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}
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} else if (channel >= 0 && channel < JA_MAX_SIMULTANEOUS_CHANNELS) {
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if (channels[channel].state == JA_CHANNEL_PAUSED) {
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channels[channel].state = JA_CHANNEL_PLAYING;
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// SDL_ResumeAudioStreamDevice(channels[channel].stream);
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SDL_BindAudioStream(sdlAudioDevice, channels[channel].stream);
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}
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}
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}
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void JA_StopChannel(const int channel) {
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if (!JA_soundEnabled)
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return;
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if (channel == -1) {
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for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) {
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if (channels[i].state != JA_CHANNEL_FREE)
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SDL_DestroyAudioStream(channels[i].stream);
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channels[i].stream = nullptr;
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channels[i].state = JA_CHANNEL_FREE;
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channels[i].pos = 0;
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channels[i].sound = NULL;
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}
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} else if (channel >= 0 && channel < JA_MAX_SIMULTANEOUS_CHANNELS) {
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if (channels[channel].state != JA_CHANNEL_FREE)
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SDL_DestroyAudioStream(channels[channel].stream);
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channels[channel].stream = nullptr;
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channels[channel].state = JA_CHANNEL_FREE;
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channels[channel].pos = 0;
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channels[channel].sound = NULL;
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}
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}
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JA_Channel_state JA_GetChannelState(const int channel) {
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if (!JA_soundEnabled)
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return JA_SOUND_DISABLED;
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if (channel < 0 || channel >= JA_MAX_SIMULTANEOUS_CHANNELS)
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return JA_CHANNEL_INVALID;
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return channels[channel].state;
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}
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float JA_SetSoundVolume(float volume, const int group) {
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const float v = SDL_clamp(volume, 0.0f, 1.0f);
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for (int i = 0; i < JA_MAX_GROUPS; ++i) {
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if (group == -1 || group == i)
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JA_soundVolume[i] = v;
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}
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for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++)
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if (((channels[i].state == JA_CHANNEL_PLAYING) || (channels[i].state == JA_CHANNEL_PAUSED)) &&
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((group == -1) || (channels[i].group == group)))
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SDL_SetAudioStreamGain(channels[i].stream, JA_soundVolume[i]);
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return v;
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}
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void JA_EnableSound(const bool value) {
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for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) {
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if (channels[i].state == JA_CHANNEL_PLAYING)
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JA_StopChannel(i);
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}
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JA_soundEnabled = value;
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}
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float JA_SetVolume(float volume) {
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JA_SetSoundVolume(JA_SetMusicVolume(volume) / 2.0f);
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return JA_musicVolume;
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}
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#endif |