Add a method to set and get soundfonts

The main purpose of this is to select soundfonts for playback, eventually,
instead of the existing method that takes a filename.

4 files changed, 52 insertions, 0 deletions

diff --git a/Alc/midi/base.c b/Alc/midi/base.c
index 6449d7fc..8b498680 100644
--- a/Alc/midi/base.c
+++ b/Alc/midi/base.c
@@ -124,6 +124,9 @@ void MidiSynth_Construct(MidiSynth *self, ALCdevice *device)
 
     RWLockInit(&self->Lock);
 
+    self->Soundfonts = NULL;
+    self->NumSoundfonts = 0;
+
     self->Gain = 1.0f;
     self->State = AL_INITIAL;
 
@@ -137,6 +140,14 @@ void MidiSynth_Construct(MidiSynth *self, ALCdevice *device)
 
 void MidiSynth_Destruct(MidiSynth *self)
 {
+    ALsizei i;
+
+    for(i = 0;i < self->NumSoundfonts;i++)
+        DecrementRef(&self->Soundfonts[i]->ref);
+    free(self->Soundfonts);
+    self->Soundfonts = NULL;
+    self->NumSoundfonts = 0;
+
     ResetEvtQueue(&self->EventQueue);
 }
 
@@ -152,6 +163,38 @@ const char *MidiSynth_getFontName(const MidiSynth* UNUSED(self), const char *fil
     return filename;
 }
 
+ALenum MidiSynth_selectSoundfonts(MidiSynth *self, ALCdevice *device, ALsizei count, const ALuint *ids)
+{
+    ALsoundfont **sfonts;
+    ALsizei i;
+
+    if(self->State != AL_INITIAL && self->State != AL_STOPPED)
+        return AL_INVALID_OPERATION;
+
+    sfonts = calloc(1, count * sizeof(sfonts[0]));
+    if(!sfonts) return AL_OUT_OF_MEMORY;
+
+    for(i = 0;i < count;i++)
+    {
+        if(!(sfonts[i]=LookupSfont(device, ids[i])))
+        {
+            free(sfonts);
+            return AL_INVALID_VALUE;
+        }
+    }
+
+    for(i = 0;i < count;i++)
+        IncrementRef(&sfonts[i]->ref);
+    sfonts = ExchangePtr((XchgPtr*)&self->Soundfonts, sfonts);
+    count = ExchangeInt(&self->NumSoundfonts, count);
+
+    for(i = 0;i < count;i++)
+        DecrementRef(&sfonts[i]->ref);
+    free(sfonts);
+
+    return AL_NO_ERROR;
+}
+
 extern inline void MidiSynth_setGain(MidiSynth *self, ALfloat gain);
 extern inline ALfloat MidiSynth_getGain(const MidiSynth *self);
 extern inline void MidiSynth_setState(MidiSynth *self, ALenum state);
diff --git a/Alc/midi/base.h b/Alc/midi/base.h
index 4f10b89b..d038eebc 100644
--- a/Alc/midi/base.h
+++ b/Alc/midi/base.h
@@ -27,6 +27,9 @@ typedef struct MidiSynth {
      */
     RWLock Lock;
 
+    struct ALsoundfont **Soundfonts;
+    ALsizei NumSoundfonts;
+
     volatile ALfloat Gain;
     volatile ALenum State;
 
@@ -36,6 +39,7 @@ typedef struct MidiSynth {
 void MidiSynth_Construct(MidiSynth *self, ALCdevice *device);
 void MidiSynth_Destruct(MidiSynth *self);
 const char *MidiSynth_getFontName(const MidiSynth *self, const char *filename);
+ALenum MidiSynth_selectSoundfonts(MidiSynth *self, ALCdevice *device, ALsizei count, const ALuint *ids);
 inline void MidiSynth_setGain(MidiSynth *self, ALfloat gain) { self->Gain = gain; }
 inline ALfloat MidiSynth_getGain(const MidiSynth *self) { return self->Gain; }
 inline void MidiSynth_setState(MidiSynth *self, ALenum state) { ExchangeInt(&self->State, state); }
@@ -60,6 +64,7 @@ struct MidiSynthVtable {
 
     ALboolean (*const isSoundfont)(MidiSynth *self, const char *filename);
     ALenum (*const loadSoundfont)(MidiSynth *self, const char *filename);
+    ALenum (*const selectSoundfonts)(MidiSynth *self, ALCdevice *device, ALsizei count, const ALuint *ids);
 
     void (*const setGain)(MidiSynth *self, ALfloat gain);
     void (*const setState)(MidiSynth *self, ALenum state);
@@ -77,6 +82,7 @@ struct MidiSynthVtable {
 DECLARE_THUNK(T, MidiSynth, void, Destruct)                                   \
 DECLARE_THUNK1(T, MidiSynth, ALboolean, isSoundfont, const char*)             \
 DECLARE_THUNK1(T, MidiSynth, ALenum, loadSoundfont, const char*)              \
+DECLARE_THUNK3(T, MidiSynth, ALenum, selectSoundfonts, ALCdevice*, ALsizei, const ALuint*) \
 DECLARE_THUNK1(T, MidiSynth, void, setGain, ALfloat)                          \
 DECLARE_THUNK1(T, MidiSynth, void, setState, ALenum)                          \
 DECLARE_THUNK(T, MidiSynth, void, stop)                                       \
@@ -90,6 +96,7 @@ static const struct MidiSynthVtable T##_MidiSynth_vtable = {                  \
                                                                               \
     T##_MidiSynth_isSoundfont,                                                \
     T##_MidiSynth_loadSoundfont,                                              \
+    T##_MidiSynth_selectSoundfonts,                                           \
     T##_MidiSynth_setGain,                                                    \
     T##_MidiSynth_setState,                                                   \
     T##_MidiSynth_stop,                                                       \
diff --git a/Alc/midi/dummy.c b/Alc/midi/dummy.c
index 4e53270e..3b72b63f 100644
--- a/Alc/midi/dummy.c
+++ b/Alc/midi/dummy.c
@@ -22,6 +22,7 @@ static void DSynth_Construct(DSynth *self, ALCdevice *device);
 static DECLARE_FORWARD(DSynth, MidiSynth, void, Destruct)
 static ALboolean DSynth_isSoundfont(DSynth *self, const char *filename);
 static ALenum DSynth_loadSoundfont(DSynth *self, const char *filename);
+static DECLARE_FORWARD3(DSynth, MidiSynth, ALenum, selectSoundfonts, ALCdevice*, ALsizei, const ALuint*)
 static DECLARE_FORWARD1(DSynth, MidiSynth, void, setGain, ALfloat)
 static DECLARE_FORWARD1(DSynth, MidiSynth, void, setState, ALenum)
 static DECLARE_FORWARD(DSynth, MidiSynth, void, stop)
diff --git a/Alc/midi/fluidsynth.c b/Alc/midi/fluidsynth.c
index 7461cc4e..55526238 100644
--- a/Alc/midi/fluidsynth.c
+++ b/Alc/midi/fluidsynth.c
@@ -42,6 +42,7 @@ static void FSynth_Destruct(FSynth *self);
 static ALboolean FSynth_init(FSynth *self, ALCdevice *device);
 static ALboolean FSynth_isSoundfont(FSynth *self, const char *filename);
 static ALenum FSynth_loadSoundfont(FSynth *self, const char *filename);
+static DECLARE_FORWARD3(FSynth, MidiSynth, ALenum, selectSoundfonts, ALCdevice*, ALsizei, const ALuint*)
 static void FSynth_setGain(FSynth *self, ALfloat gain);
 static void FSynth_setState(FSynth *self, ALenum state);
 static void FSynth_stop(FSynth *self);