- Types changed, SDL_Mixer version included

jail_audio.cpp

@@ -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_volume = 128;
-int             JA_soundvolume = 64;
 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_t *JA_NewSound(Uint8* buffer, Uint32 length) {
-    JA_Sound sound = new JA_Sound_t();
+    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_t *JA_LoadSound(const char* filename) {
-    JA_Sound sound = new JA_Sound_t();
+    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_volume = volume > 128 ? 128 : volume < 0 ? 0 : volume;
-    JA_soundvolume = JA_musicvolume/2;
+    return JA_volume;
-    return JA_musicvolume;
 }
+#endif

jail_audio.h

@@ -4,30 +4,27 @@
 enum JA_Channel_state { JA_CHANNEL_INVALID, JA_CHANNEL_FREE, JA_CHANNEL_PLAYING, JA_CHANNEL_PAUSED };
 enum JA_Music_state { JA_MUSIC_INVALID, JA_MUSIC_PLAYING, JA_MUSIC_PAUSED, JA_MUSIC_STOPPED };
 
-typedef struct JA_Sound_t *JA_Sound;
+struct JA_Sound_t;
-typedef struct JA_Music_t *JA_Music;
+struct JA_Music_t;
 
 void JA_Init(const int freq, const SDL_AudioFormat format, const int channels);
 void JA_Quit();
 
-JA_Music JA_LoadMusic(const char* filename);
+JA_Music_t *JA_LoadMusic(const char* filename);
-void JA_PlayMusic(JA_Music music, const int loop = -1);
+void JA_PlayMusic(JA_Music_t *music, const int loop = -1);
 void JA_PauseMusic();
 void JA_ResumeMusic();
 void JA_StopMusic();
-int JA_SetVolume(int volume);
-int JA_SetMusicVolume(int volume);
 JA_Music_state JA_GetMusicState();
-void JA_DeleteMusic(JA_Music music);
+void JA_DeleteMusic(JA_Music_t *music);
-
-JA_Sound JA_NewSound(Uint8* buffer, Uint32 length);
-JA_Sound JA_LoadSound(const char* filename);
-int JA_PlaySound(JA_Sound sound, const int loop = 0);
-void JA_DeleteSound(JA_Sound sound);
-int JA_SetSoundVolume(int volume);
 
+JA_Sound_t *JA_NewSound(Uint8* buffer, Uint32 length);
+JA_Sound_t *JA_LoadSound(const char* filename);
+int JA_PlaySound(JA_Sound_t *sound, const int loop = 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);
 
+int JA_SetVolume(int volume);

jail_audio_sdlmixer.cpp

@@ -0,0 +1,101 @@
+#ifdef JA_USESDLMIXER
+#include "jail_audio.h"
+#include <SDL2/SDL.h>
+#include <SDL2/SDL_mixer.h>
+#include <stdio.h>
+
+struct JA_Sound_t {}; // Dummy structs
+struct JA_Music_t {};
+
+int             JA_freq {48000};
+SDL_AudioFormat JA_format {AUDIO_S16};
+Uint8           JA_channels {2};
+
+void JA_Init(const int freq, const SDL_AudioFormat format, const int channels) {
+    JA_freq = freq;
+    JA_format = format;
+    JA_channels = channels;
+    Mix_OpenAudio(JA_freq, JA_format, JA_channels, 1024);
+}
+
+void JA_Quit() {
+    Mix_CloseAudio();
+}
+
+JA_Music_t *JA_LoadMusic(const char* filename) {
+    return (JA_Music_t*)Mix_LoadMUS(filename);
+}
+
+void JA_PlayMusic(JA_Music_t *music, const int loop) {
+    Mix_PlayMusic((Mix_Music*)music, loop);
+}
+
+void JA_PauseMusic() {
+    Mix_PauseMusic();
+}
+
+void JA_ResumeMusic() {
+    Mix_ResumeMusic();
+}
+
+void JA_StopMusic() {
+    Mix_HaltMusic();
+}
+
+JA_Music_state JA_GetMusicState() {
+    if (Mix_PausedMusic()) {
+        return JA_MUSIC_PAUSED;
+    } else if (Mix_PlayingMusic()) {
+        return JA_MUSIC_PLAYING;
+    } else {
+        return JA_MUSIC_STOPPED;
+    }
+}
+
+void JA_DeleteMusic(JA_Music_t *music) {
+    Mix_FreeMusic((Mix_Music*)music);
+}
+
+JA_Sound_t *JA_NewSound(Uint8* buffer, Uint32 length) {
+    return NULL;
+}
+
+JA_Sound_t *JA_LoadSound(const char* filename) {
+    JA_Sound_t *sound = (JA_Sound_t*)Mix_LoadWAV(filename);
+    return sound;
+}
+
+int JA_PlaySound(JA_Sound_t *sound, const int loop) {
+    return Mix_PlayChannel(-1, (Mix_Chunk*)sound, loop);
+}
+
+void JA_DeleteSound(JA_Sound_t *sound) {
+    Mix_FreeChunk((Mix_Chunk*)sound);
+}
+
+void JA_PauseChannel(const int channel) {
+    Mix_Pause(channel);
+}
+
+void JA_ResumeChannel(const int channel) {
+    Mix_Resume(channel);
+}
+
+void JA_StopChannel(const int channel) {
+    Mix_HaltChannel(channel);
+}
+
+JA_Channel_state JA_GetChannelState(const int channel) {
+    if (Mix_Paused(channel)) {
+        return JA_CHANNEL_PAUSED;
+    } else if (Mix_Playing(channel)) {
+        return JA_CHANNEL_PLAYING;
+    } else {
+        return JA_CHANNEL_FREE;
+    }
+}
+
+int JA_SetVolume(int volume) {
+    return Mix_Volume(-1, volume);
+}
+#endif