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https://github.com/vsariola/sointu.git
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6e85ff674a
test_render_samples_api.c was added to test the api. bridge.go was modified to reflect that there is no need to check for row manually; su_render_samples already returns the information if a row has ended.
96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
package bridge
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import "fmt"
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import "unsafe"
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import "math"
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// #cgo CFLAGS: -I"${SRCDIR}/../include"
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// #cgo LDFLAGS: "${SRCDIR}/../build/src/libsointu.a"
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// #include <sointu.h>
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import "C"
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type SynthState = C.SynthState
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type Opcode byte
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var ( // cannot be const as the rhs are not known at compile-time
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Add = Opcode(C.su_add_id)
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Addp = Opcode(C.su_addp_id)
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Pop = Opcode(C.su_pop_id)
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Loadnote = Opcode(C.su_loadnote_id)
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Mul = Opcode(C.su_mul_id)
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Mulp = Opcode(C.su_mulp_id)
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Push = Opcode(C.su_push_id)
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Xch = Opcode(C.su_xch_id)
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Distort = Opcode(C.su_distort_id)
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Hold = Opcode(C.su_hold_id)
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Crush = Opcode(C.su_crush_id)
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Gain = Opcode(C.su_gain_id)
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Invgain = Opcode(C.su_invgain_id)
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Filter = Opcode(C.su_filter_id)
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Clip = Opcode(C.su_clip_id)
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Pan = Opcode(C.su_pan_id)
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Delay = Opcode(C.su_delay_id)
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Compres = Opcode(C.su_compres_id)
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Advance = Opcode(C.su_advance_id)
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Speed = Opcode(C.su_speed_id)
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Out = Opcode(C.su_out_id)
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Outaux = Opcode(C.su_outaux_id)
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Aux = Opcode(C.su_aux_id)
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Send = Opcode(C.su_send_id)
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Envelope = Opcode(C.su_envelope_id)
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Noise = Opcode(C.su_noise_id)
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Oscillat = Opcode(C.su_oscillat_id)
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Loadval = Opcode(C.su_loadval_id)
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Receive = Opcode(C.su_receive_id)
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In = Opcode(C.su_in_id)
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)
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func (o Opcode) Stereo() Opcode {
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return Opcode(byte(o) | 1) // set lowest bit
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}
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func (o Opcode) Mono() Opcode {
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return Opcode(byte(o) & 0xFE) // clear lowest bit
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}
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func (s *SynthState) Render(buffer []float32) int {
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fmt.Printf("Calling Render...\n")
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var ret = C.su_render_samples(s, C.int(len(buffer))/2, (*C.float)(&buffer[0]))
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fmt.Printf("Returning from Render...\n")
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return int(ret)
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}
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func (s *SynthState) SetCommands(c [2048]Opcode) {
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pk := *((*[2048]C.uchar)(unsafe.Pointer(&c)))
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s.Commands = pk
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}
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func (s *SynthState) SetValues(c [16384]byte) {
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pk := *((*[16384]C.uchar)(unsafe.Pointer(&c)))
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s.Values = pk
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}
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func (s *SynthState) Trigger(voice int,note int) {
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fmt.Printf("Calling Trigger...\n")
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s.Synth.Voices[voice] = C.Voice{}
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s.Synth.Voices[voice].Note = C.int(note)
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fmt.Printf("Returning from Trigger...\n")
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}
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func (s *SynthState) Release(voice int) {
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fmt.Printf("Calling Release...\n")
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s.Synth.Voices[voice].Release = 1
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fmt.Printf("Returning from Release...\n")
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}
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func NewSynthState() *SynthState {
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s := new(SynthState)
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s.RandSeed = 1
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// The default behaviour will be to have rows/beats disabled i.e.
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// fill the whole buffer every call. This is a lot better default
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// behaviour than leaving this 0 (Render would never render anything)
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s.SamplesPerRow = math.MaxInt32
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return s
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}
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