diff options
Diffstat (limited to 'OpenAL32/alMidi.c')
| -rw-r--r-- | OpenAL32/alMidi.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/OpenAL32/alMidi.c b/OpenAL32/alMidi.c new file mode 100644 index 00000000..0679b64c --- /dev/null +++ b/OpenAL32/alMidi.c @@ -0,0 +1,221 @@ + +#include "config.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <limits.h> + +#include "alMain.h" +#include "alMidi.h" +#include "alError.h" +#include "alThunk.h" +#include "evtqueue.h" +#include "rwlock.h" +#include "alu.h" + +#include "midi/base.h" + + +MidiSynth *SynthCreate(ALCdevice *device) +{ + MidiSynth *synth = FSynth_create(device); + if(!synth) synth = DSynth_create(device); + return synth; +} + + +AL_API void AL_APIENTRY alMidiSoundfontSOFT(ALuint id) +{ + alMidiSoundfontvSOFT(1, &id); +} + +AL_API void AL_APIENTRY alMidiSoundfontvSOFT(ALsizei count, const ALuint *ids) +{ + ALCdevice *device; + ALCcontext *context; + MidiSynth *synth; + ALenum err; + + context = GetContextRef(); + if(!context) return; + + if(count < 0) + SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); + + device = context->Device; + synth = device->Synth; + + WriteLock(&synth->Lock); + if(synth->State == AL_PLAYING || synth->State == AL_PAUSED) + alSetError(context, AL_INVALID_OPERATION); + else + { + err = V(synth,selectSoundfonts)(context, count, ids); + if(err != AL_NO_ERROR) + alSetError(context, err); + } + WriteUnlock(&synth->Lock); + +done: + ALCcontext_DecRef(context); +} + + +AL_API void AL_APIENTRY alMidiEventSOFT(ALuint64SOFT time, ALenum event, ALsizei channel, ALsizei param1, ALsizei param2) +{ + ALCdevice *device; + ALCcontext *context; + ALenum err; + + context = GetContextRef(); + if(!context) return; + + if(!(event == AL_NOTEOFF_SOFT || event == AL_NOTEON_SOFT || + event == AL_KEYPRESSURE_SOFT || event == AL_CONTROLLERCHANGE_SOFT || + event == AL_PROGRAMCHANGE_SOFT || event == AL_CHANNELPRESSURE_SOFT || + event == AL_PITCHBEND_SOFT)) + SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done); + if(!(channel >= 0 && channel <= 15)) + SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); + if(!(param1 >= 0 && param1 <= 127)) + SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); + if(!(param2 >= 0 && param2 <= 127)) + SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); + + device = context->Device; + ALCdevice_Lock(device); + err = MidiSynth_insertEvent(device->Synth, time, event|channel, param1, param2); + ALCdevice_Unlock(device); + if(err != AL_NO_ERROR) + alSetError(context, err); + +done: + ALCcontext_DecRef(context); +} + +AL_API void AL_APIENTRY alMidiSysExSOFT(ALuint64SOFT time, const ALbyte *data, ALsizei size) +{ + ALCdevice *device; + ALCcontext *context; + ALenum err; + ALsizei i; + + context = GetContextRef(); + if(!context) return; + + if(!data || size < 0) + SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); + for(i = 0;i < size;i++) + { + if((data[i]&0x80)) + SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); + } + + device = context->Device; + ALCdevice_Lock(device); + err = MidiSynth_insertSysExEvent(device->Synth, time, data, size); + ALCdevice_Unlock(device); + if(err != AL_NO_ERROR) + alSetError(context, err); + +done: + ALCcontext_DecRef(context); +} + +AL_API void AL_APIENTRY alMidiPlaySOFT(void) +{ + ALCcontext *context; + MidiSynth *synth; + + context = GetContextRef(); + if(!context) return; + + synth = context->Device->Synth; + WriteLock(&synth->Lock); + V(synth,setState)(AL_PLAYING); + WriteUnlock(&synth->Lock); + + ALCcontext_DecRef(context); +} + +AL_API void AL_APIENTRY alMidiPauseSOFT(void) +{ + ALCcontext *context; + MidiSynth *synth; + + context = GetContextRef(); + if(!context) return; + + synth = context->Device->Synth; + WriteLock(&synth->Lock); + V(synth,setState)(AL_PAUSED); + WriteUnlock(&synth->Lock); + + ALCcontext_DecRef(context); +} + +AL_API void AL_APIENTRY alMidiStopSOFT(void) +{ + ALCdevice *device; + ALCcontext *context; + MidiSynth *synth; + + context = GetContextRef(); + if(!context) return; + + device = context->Device; + synth = device->Synth; + + WriteLock(&synth->Lock); + V(synth,setState)(AL_STOPPED); + + ALCdevice_Lock(device); + V0(synth,stop)(); + ALCdevice_Unlock(device); + WriteUnlock(&synth->Lock); + + ALCcontext_DecRef(context); +} + +AL_API void AL_APIENTRY alMidiResetSOFT(void) +{ + ALCdevice *device; + ALCcontext *context; + MidiSynth *synth; + + context = GetContextRef(); + if(!context) return; + + device = context->Device; + synth = device->Synth; + + WriteLock(&synth->Lock); + V(synth,setState)(AL_INITIAL); + + ALCdevice_Lock(device); + V0(synth,reset)(); + ALCdevice_Unlock(device); + WriteUnlock(&synth->Lock); + + ALCcontext_DecRef(context); +} + + +AL_API void AL_APIENTRY alMidiGainSOFT(ALfloat value) +{ + ALCdevice *device; + ALCcontext *context; + + context = GetContextRef(); + if(!context) return; + + if(!(value >= 0.0f && isfinite(value))) + SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); + + device = context->Device; + V(device->Synth,setGain)(value); + +done: + ALCcontext_DecRef(context); +} |