mirror of
https://github.com/vsariola/sointu.git
synced 2025-06-04 01:28:45 -04:00
61 lines
1.7 KiB
Go
61 lines
1.7 KiB
Go
package bridge_test
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import (
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"bytes"
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"encoding/binary"
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"github.com/vsariola/sointu/bridge"
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"io/ioutil"
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"path"
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"runtime"
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"testing"
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)
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const BPM = 100
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const SAMPLE_RATE = 44100
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const TOTAL_ROWS = 16
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const SAMPLES_PER_ROW = SAMPLE_RATE * 4 * 60 / (BPM * 16)
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const su_max_samples = SAMPLES_PER_ROW * TOTAL_ROWS
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// const bufsize = su_max_samples * 2
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func TestBridge(t *testing.T) {
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commands := [2048]bridge.Opcode{
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bridge.Envelope, bridge.Envelope, bridge.Out.Stereo(), bridge.Advance}
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values := [16384]byte{64, 64, 64, 80, 128, // envelope 1
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95, 64, 64, 80, 128, // envelope 2
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128}
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s := bridge.NewSynthState()
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s.SetCommands(commands)
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s.SetValues(values)
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s.NumVoices = 1
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s.Synth.Voices[0].Note = 64
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s.SamplesPerRow = SAMPLES_PER_ROW * 8 // this song is two blocks of 8 rows, release during second
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buffer := make([]float32, 2*su_max_samples)
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n,err := s.Render(buffer,2,func() {
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s.Synth.Voices[0].Release = 1
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})
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if n < su_max_samples {
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t.Fatalf("could not fill the whole buffer, %v samples rendered, %v expected", n, su_max_samples)
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}
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_, filename, _, _ := runtime.Caller(0)
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expectedb, err := ioutil.ReadFile(path.Join(path.Dir(filename), "..", "tests", "expected_output", "test_render_samples.raw"))
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if err != nil {
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t.Fatalf("cannot read expected: %v", err)
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}
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var createdbuf bytes.Buffer
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err = binary.Write(&createdbuf, binary.LittleEndian, buffer)
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if err != nil {
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t.Fatalf("error converting buffer: %v", err)
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}
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createdb := createdbuf.Bytes()
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if len(createdb) != len(expectedb) {
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t.Fatalf("buffer length mismatch, got %v, expected %v", len(createdb), len(expectedb))
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}
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for i, v := range createdb {
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if expectedb[i] != v {
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t.Errorf("byte mismatch @ %v, got %v, expected %v", i, v, expectedb[i])
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}
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}
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}
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