jailers/JailAudioSDL3
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- Types changed, SDL_Mixer version included

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JailDoctor
2022-12-01 19:42:20 +01:00
parent bf1925bb3a
commit c79150b24a
3 changed files with 132 additions and 44 deletions
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52
jail_audio.cpp
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@@ -1,3 +1,4 @@
#ifndef JA_USESDLMIXER
#include "jail_audio.h"
#include "stb_vorbis.c"
#include <SDL2/SDL.h>
@@ -11,7 +12,7 @@ struct JA_Sound_t {
};
struct JA_Channel_t {
JA_Sound sound;
JA_Sound_t *sound;
int pos {0};
int times {0};
JA_Channel_state state { JA_CHANNEL_FREE };
@@ -25,25 +26,24 @@ struct JA_Music_t {
JA_Music_state state {JA_MUSIC_INVALID};
};
JA_Music current_music{NULL};
JA_Music_t *current_music{NULL};
JA_Channel_t channels[JA_MAX_SIMULTANEOUS_CHANNELS];
int JA_freq {48000};
SDL_AudioFormat JA_format {AUDIO_S16};
Uint8 JA_channels {2};
int JA_musicvolume = 128;
int JA_soundvolume = 64;
int JA_volume = 128;
SDL_AudioDeviceID sdlAudioDevice = 0;
void audioCallback(void * userdata, uint8_t * stream, int len) {
SDL_memset(stream, 0, len);
if (current_music != NULL && current_music->state == JA_MUSIC_PLAYING) {
const int size = SDL_min(len, current_music->samples*2-current_music->pos);
SDL_MixAudioFormat(stream, (Uint8*)(current_music->output+current_music->pos), AUDIO_S16, size, JA_musicvolume);
SDL_MixAudioFormat(stream, (Uint8*)(current_music->output+current_music->pos), AUDIO_S16, size, JA_volume);
current_music->pos += size/2;
if (size < len) {
if (current_music->times != 0) {
SDL_MixAudioFormat(stream+size, (Uint8*)current_music->output, AUDIO_S16, len-size, JA_musicvolume);
SDL_MixAudioFormat(stream+size, (Uint8*)current_music->output, AUDIO_S16, len-size, JA_volume);
current_music->pos = (len-size)/2;
if (current_music->times > 0) current_music->times--;
} else {
@@ -56,11 +56,11 @@ void audioCallback(void * userdata, uint8_t * stream, int len) {
for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) {
if (channels[i].state == JA_CHANNEL_PLAYING) {
const int size = SDL_min(len, channels[i].sound->length - channels[i].pos);
SDL_MixAudioFormat(stream, channels[i].sound->buffer + channels[i].pos, AUDIO_S16, size, JA_soundvolume);
SDL_MixAudioFormat(stream, channels[i].sound->buffer + channels[i].pos, AUDIO_S16, size, JA_volume/2);
channels[i].pos += size;
if (size < len) {
if (channels[i].times != 0) {
SDL_MixAudioFormat(stream + size, channels[i].sound->buffer, AUDIO_S16, len-size, JA_soundvolume);
SDL_MixAudioFormat(stream + size, channels[i].sound->buffer, AUDIO_S16, len-size, JA_volume/2);
channels[i].pos = len-size;
if (channels[i].times > 0) channels[i].times--;
} else {
@@ -87,7 +87,7 @@ void JA_Quit() {
sdlAudioDevice = 0;
}
JA_Music JA_LoadMusic(const char* filename) {
JA_Music_t *JA_LoadMusic(const char* filename) {
int chan, samplerate;
// [RZC 28/08/22] Carreguem primer el arxiu en memòria i després el descomprimim. Es algo més rapid.
@@ -99,7 +99,7 @@ JA_Music JA_LoadMusic(const char* filename) {
if (fread(buffer, fsize, 1, f)!=1) return NULL;
fclose(f);
JA_Music music = new JA_Music_t();
JA_Music_t *music = new JA_Music_t();
music->samples = stb_vorbis_decode_memory(buffer, fsize, &chan, &samplerate, &music->output);
free(buffer);
@@ -122,7 +122,7 @@ JA_Music JA_LoadMusic(const char* filename) {
return music;
}
void JA_PlayMusic(JA_Music music, const int loop) {
void JA_PlayMusic(JA_Music_t *music, const int loop) {
if (current_music != NULL) {
current_music->pos = 0;
current_music->state = JA_MUSIC_STOPPED;
@@ -154,21 +154,21 @@ JA_Music_state JA_GetMusicState() {
return current_music->state;
}
void JA_DeleteMusic(JA_Music music) {
void JA_DeleteMusic(JA_Music_t *music) {
if (current_music == music) current_music = NULL;
free(music->output);
delete music;
}
JA_Sound JA_NewSound(Uint8* buffer, Uint32 length) {
JA_Sound sound = new JA_Sound_t();
JA_Sound_t *JA_NewSound(Uint8* buffer, Uint32 length) {
JA_Sound_t *sound = new JA_Sound_t();
sound->buffer = buffer;
sound->length = length;
return sound;
}
JA_Sound JA_LoadSound(const char* filename) {
JA_Sound sound = new JA_Sound_t();
JA_Sound_t *JA_LoadSound(const char* filename) {
JA_Sound_t *sound = new JA_Sound_t();
SDL_AudioSpec wavSpec;
SDL_LoadWAV(filename, &wavSpec, &sound->buffer, &sound->length);
@@ -185,7 +185,7 @@ JA_Sound JA_LoadSound(const char* filename) {
return sound;
}
int JA_PlaySound(JA_Sound sound, const int loop) {
int JA_PlaySound(JA_Sound_t *sound, const int loop) {
int channel = 0;
while (channel < JA_MAX_SIMULTANEOUS_CHANNELS && channels[channel].state != JA_CHANNEL_FREE) { channel++; }
if (channel == JA_MAX_SIMULTANEOUS_CHANNELS) channel = 0;
@@ -197,7 +197,7 @@ int JA_PlaySound(JA_Sound sound, const int loop) {
return channel;
}
void JA_DeleteSound(JA_Sound sound) {
void JA_DeleteSound(JA_Sound_t *sound) {
for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) {
if (channels[i].sound == sound) JA_StopChannel(i);
}
@@ -244,18 +244,8 @@ JA_Channel_state JA_GetChannelState(const int channel) {
return channels[channel].state;
}
int JA_SetSoundVolume(int volume) {
JA_soundvolume = volume > 128 ? 128 : volume < 0 ? 0 : volume;
return JA_soundvolume;
}
int JA_SetMusicVolume(int volume) {
JA_musicvolume = volume > 128 ? 128 : volume < 0 ? 0 : volume;
return JA_musicvolume;
}
int JA_SetVolume(int volume) {
JA_musicvolume = volume > 128 ? 128 : volume < 0 ? 0 : volume;
JA_soundvolume = JA_musicvolume/2;
return JA_musicvolume;
JA_volume = volume > 128 ? 128 : volume < 0 ? 0 : volume;
return JA_volume;
}
#endif