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Change the Go bridge API to more idiomatic Go, offering a callback when the row advances.

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This commit is contained in:
Veikko Sariola
2020-10-24 14:39:10 +03:00
parent 6e85ff674a
commit 1abc6f22d5
2 changed files with 35 additions and 25 deletions
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27
bridge/bridge_test.go
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@ -26,31 +26,18 @@ func TestBridge(t *testing.T) {
95, 64, 64, 80, 128, // envelope 2
128}
s := bridge.NewSynthState()
// memcpy(synthState->Commands, commands, sizeof(commands));
s.SetCommands(commands)
// memcpy(synthState->Values, values, sizeof(values));
s.SetValues(values)
// synthState->RandSeed = 1;
// initialized in NewSynthState
// synthState->RowLen = INT32_MAX;
// synthState->NumVoices = 1;
s.NumVoices = 1
// synthState->Synth.Voices[0].Note = 64;
s.Synth.Voices[0].Note = 64
// retval = su_render_samples(buffer, su_max_samples / 2, synthState);
buffer := make([]float32, su_max_samples)
remaining := s.Render(buffer)
if remaining > 0 {
t.Fatalf("could not render full buffer, %v bytes remaining, expected <= 0", remaining)
s.SamplesPerRow = SAMPLES_PER_ROW * 8 // this song is two blocks of 8 rows, release during second
buffer := make([]float32, 2*su_max_samples)
n,err := s.Render(buffer,2,func() {
s.Synth.Voices[0].Release = 1
})
if n < su_max_samples {
t.Fatalf("could not fill the whole buffer, %v samples rendered, %v expected", n, su_max_samples)
}
// synthState->Synth.Voices[0].Release++;
s.Synth.Voices[0].Release++
sbuffer := make([]float32, su_max_samples)
remaining = s.Render(sbuffer)
if remaining > 0 {
t.Fatalf("could not render second full buffer, %v bytes remaining, expected <= 0", remaining)
}
buffer = append(buffer, sbuffer...)
_, filename, _, _ := runtime.Caller(0)
expectedb, err := ioutil.ReadFile(path.Join(path.Dir(filename), "..", "tests", "expected_output", "test_render_samples.raw"))
if err != nil {