jailers/JailAudioSDL3
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- [NEW] Afegits grups de sons, per a fer el volum de cada grup independent.

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This commit is contained in:
Raimon Zamora
2025-07-01 09:09:12 +02:00
parent 45e14f3ff7
commit 7d591bb028
2 changed files with 21 additions and 51 deletions
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66
jail_audio.cpp
View File

@@ -5,6 +5,7 @@
#include <stdio.h>
#define JA_MAX_SIMULTANEOUS_CHANNELS 5
#define JA_MAX_GROUPS 5
struct JA_Sound_t
{
@@ -18,6 +19,7 @@ struct JA_Channel_t
JA_Sound_t *sound { nullptr };
int pos { 0 };
int times { 0 };
int group { 0 };
SDL_AudioStream *stream { nullptr };
JA_Channel_state state { JA_CHANNEL_FREE };
};
@@ -40,7 +42,7 @@ JA_Channel_t channels[JA_MAX_SIMULTANEOUS_CHANNELS];
SDL_AudioSpec JA_audioSpec { SDL_AUDIO_S16, 2, 48000 };
float JA_musicVolume { 1.0f };
float JA_soundVolume { 0.5f };
float JA_soundVolume[JA_MAX_GROUPS];
bool JA_musicEnabled { true };
bool JA_soundEnabled { true };
SDL_AudioDeviceID sdlAudioDevice { 0 };
@@ -51,43 +53,6 @@ int fade_start_time;
int fade_duration;
int fade_initial_volume;
/*
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);
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);
current_music->pos = (len-size)/2;
if (current_music->times > 0) current_music->times--;
} else {
current_music->pos = 0;
current_music->state = JA_MUSIC_STOPPED;
}
}
}
// Mixar els channels mi amol
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);
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);
channels[i].pos = len-size;
if (channels[i].times > 0) channels[i].times--;
} else {
JA_StopChannel(i);
}
}
}
}
}
*/
Uint32 JA_UpdateCallback(void *userdata, SDL_TimerID timerID, Uint32 interval)
{
@@ -153,7 +118,8 @@ void JA_Init(const int freq, const SDL_AudioFormat format, const int num_channel
if (!sdlAudioDevice) SDL_CloseAudioDevice(sdlAudioDevice);
sdlAudioDevice = SDL_OpenAudioDevice(SDL_AUDIO_DEVICE_DEFAULT_PLAYBACK, &JA_audioSpec);
SDL_Log( (sdlAudioDevice==0) ? "Failed to initialize SDL audio!\n" : "OK!\n");
for (int i=0;i<JA_MAX_SIMULTANEOUS_CHANNELS;++i) channels[i].state = JA_CHANNEL_FREE;
for (int i=0; i<JA_MAX_SIMULTANEOUS_CHANNELS; ++i) channels[i].state = JA_CHANNEL_FREE;
for (int i=0; i<JA_MAX_GROUPS; ++i) JA_soundVolume[i] = 0.5f;
//SDL_PauseAudioDevice(sdlAudioDevice);
JA_timerID = SDL_AddTimer(30, JA_UpdateCallback, nullptr);
}
@@ -345,7 +311,7 @@ JA_Sound_t *JA_LoadSound(const char* filename)
return sound;
}
int JA_PlaySound(JA_Sound_t *sound, const int loop)
int JA_PlaySound(JA_Sound_t *sound, const int loop, const int group)
{
if (!JA_soundEnabled) return -1;
@@ -360,13 +326,13 @@ int JA_PlaySound(JA_Sound_t *sound, const int loop)
channels[channel].state = JA_CHANNEL_PLAYING;
channels[channel].stream = SDL_CreateAudioStream(&channels[channel].sound->spec, &JA_audioSpec);
SDL_PutAudioStreamData(channels[channel].stream, channels[channel].sound->buffer, channels[channel].sound->length);
SDL_SetAudioStreamGain(channels[channel].stream, JA_soundVolume);
SDL_SetAudioStreamGain(channels[channel].stream, JA_soundVolume[group]);
SDL_BindAudioStream(sdlAudioDevice, channels[channel].stream);
return channel;
}
int JA_PlaySoundOnChannel(JA_Sound_t *sound, const int channel, const int loop)
int JA_PlaySoundOnChannel(JA_Sound_t *sound, const int channel, const int loop, const int group)
{
if (!JA_soundEnabled) return -1;
@@ -379,7 +345,7 @@ int JA_PlaySoundOnChannel(JA_Sound_t *sound, const int channel, const int loop)
channels[channel].state = JA_CHANNEL_PLAYING;
channels[channel].stream = SDL_CreateAudioStream(&channels[channel].sound->spec, &JA_audioSpec);
SDL_PutAudioStreamData(channels[channel].stream, channels[channel].sound->buffer, channels[channel].sound->length);
SDL_SetAudioStreamGain(channels[channel].stream, JA_soundVolume);
SDL_SetAudioStreamGain(channels[channel].stream, JA_soundVolume[group]);
SDL_BindAudioStream(sdlAudioDevice, channels[channel].stream);
return channel;
@@ -477,15 +443,19 @@ JA_Channel_state JA_GetChannelState(const int channel)
return channels[channel].state;
}
float JA_SetSoundVolume(float volume)
float JA_SetSoundVolume(float volume, const int group)
{
JA_soundVolume = SDL_clamp( volume, 0.0f, 1.0f );
const float v = SDL_clamp( volume, 0.0f, 1.0f );
for (int i = 0; i < JA_MAX_GROUPS; ++i) {
if (group==-1 || group==i) JA_soundVolume[i]=v;
}
for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++)
if ( (channels[i].state == JA_CHANNEL_PLAYING) || (channels[i].state == JA_CHANNEL_PAUSED) )
SDL_SetAudioStreamGain(channels[i].stream, JA_soundVolume);
if ( ((channels[i].state == JA_CHANNEL_PLAYING) || (channels[i].state == JA_CHANNEL_PAUSED)) &&
((group==-1) || (channels[i].group==group)) )
SDL_SetAudioStreamGain(channels[i].stream, JA_soundVolume[i]);
return JA_soundVolume;
return v;
}
void JA_EnableSound(const bool value)

6
jail_audio.h
View File

@@ -28,14 +28,14 @@ void JA_EnableMusic(const bool value);
JA_Sound_t *JA_NewSound(Uint8* buffer, Uint32 length);
JA_Sound_t *JA_LoadSound(Uint8* buffer, Uint32 length);
JA_Sound_t *JA_LoadSound(const char* filename);
int JA_PlaySound(JA_Sound_t *sound, const int loop = 0);
int JA_PlaySoundOnChannel(JA_Sound_t *sound, const int channel, const int loop = 0);
int JA_PlaySound(JA_Sound_t *sound, const int loop = 0, const int group=0);
int JA_PlaySoundOnChannel(JA_Sound_t *sound, const int channel, const int loop = 0, const int group=0);
void JA_PauseChannel(const int channel);
void JA_ResumeChannel(const int channel);
void JA_StopChannel(const int channel);
JA_Channel_state JA_GetChannelState(const int channel);
void JA_DeleteSound(JA_Sound_t *sound);
float JA_SetSoundVolume(float volume);
float JA_SetSoundVolume(float volume, const int group=0);
void JA_EnableSound(const bool value);
float JA_SetVolume(float volume);