Add a new ALsoundfont object type

Includes a basic hierarchy for presets, instruments, samples, zones,
generators, and modulators.

1 files changed, 105 insertions, 0 deletions

diff --git a/OpenAL32/Include/alMidi.h b/OpenAL32/Include/alMidi.h
index e03cad13..46dcaad5 100644
--- a/OpenAL32/Include/alMidi.h
+++ b/OpenAL32/Include/alMidi.h
@@ -8,6 +8,111 @@
 extern "C" {
 #endif
 
+typedef struct ALsfgenerator {
+    ALenum Generator;
+    ALint Value;
+} ALsfgenerator;
+
+typedef struct ALsfmodulator {
+    ALenum SourceOp;
+    ALenum DestOp;
+    ALint Amount;
+    ALenum AmountSourceOp;
+    ALenum TransformOp;
+} ALsfmodulator;
+
+typedef struct ALsfzone {
+    ALsfgenerator *Generators;
+    ALsizei NumGenerators;
+    ALsizei GeneratorsMax;
+
+    ALsfmodulator *Modulators;
+    ALsizei NumModulators;
+    ALsizei ModulatorsMax;
+
+    /* NOTE: Preset zones may have a reference to an ALsfinstrument. Instrument
+     * zones may have a reference to an ALsfsample. */
+    ALvoid *Object;
+} ALsfzone;
+
+void ALsfzone_Construct(ALsfzone *self);
+void ALsfzone_Destruct(ALsfzone *self);
+ALenum ALsfzone_addGenerator(ALsfzone *self, ALenum generator, ALint value);
+ALenum ALsfzone_addModulator(ALsfzone *self, ALenum sourceop, ALenum destop, ALint amount, ALenum amtsourceop, ALenum transop);
+/* Stores a new object pointer in the zone. Returns the old object pointer. */
+ALvoid *ALsfzone_setRefObject(ALsfzone *self, ALvoid *object);
+
+
+typedef struct ALsfsample {
+    volatile RefCount ref;
+
+    ALuint Start;
+    ALuint End;
+    ALuint LoopStart;
+    ALuint LoopEnd;
+    ALuint SampleRate;
+    ALubyte PitchKey;
+    ALbyte PitchCorrection;
+    ALushort SampleLink;
+    ALenum SampleType;
+
+    ALuint id;
+} ALsfsample;
+
+void ALsfsample_Construct(ALsfsample *self);
+void ALsfsample_Destruct(ALsfsample *self);
+
+
+typedef struct ALsfinstrument {
+    volatile RefCount ref;
+
+    ALsfzone *Zones;
+    ALsizei NumZones;
+
+    ALuint id;
+} ALsfinstrument;
+
+void ALsfinstrument_Construct(ALsfinstrument *self);
+void ALsfinstrument_Destruct(ALsfinstrument *self);
+
+
+typedef struct ALsfpreset {
+    volatile RefCount ref;
+
+    ALint Program;
+    ALint Bank;
+
+    ALsfzone *Zones;
+    ALsizei NumZones;
+
+    ALuint id;
+} ALsfpreset;
+
+void ALsfpreset_Construct(ALsfpreset *self);
+void ALsfpreset_Destruct(ALsfpreset *self);
+
+
+typedef struct ALsoundfont {
+    volatile RefCount ref;
+
+    ALsfpreset **Presets;
+    ALsizei NumPresets;
+
+    ALshort *SampleData;
+    ALint SampleDataLen;
+
+    ALuint id;
+} ALsoundfont;
+
+void ALsoundfont_Construct(ALsoundfont *self);
+void ALsoundfont_Destruct(ALsoundfont *self);
+
+inline struct ALsoundfont *LookupSfont(ALCdevice *device, ALuint id)
+{ return (struct ALsoundfont*)LookupUIntMapKey(&device->SfontMap, id); }
+inline struct ALsoundfont *RemoveSfont(ALCdevice *device, ALuint id)
+{ return (struct ALsoundfont*)RemoveUIntMapKey(&device->SfontMap, id); }
+
+
 #ifdef __cplusplus
 }
 #endif