xdsopl/robot36
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moved bitmap invalidation out

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This commit is contained in:
Ahmet Inan 2024-04-19 11:19:49 +02:00
parent a369d1754f
commit c4e4838cab
1 changed files with 13 additions and 13 deletions
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26
app/src/main/java/xdsopl/robot36/MainActivity.java
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@ -64,7 +64,10 @@ public class MainActivity extends AppCompatActivity {
@Override
public void onPeriodicNotification(AudioRecord audioRecord) {
audioRecord.read(recordBuffer, 0, recordBuffer.length, AudioRecord.READ_BLOCKING);
visualizeSignal(demodulator.process(recordBuffer));
if (visualizeSignal(demodulator.process(recordBuffer))) {
scopeBitmap.setPixels(scopePixels, scopeWidth * curLine, scopeWidth, 0, 0, scopeWidth, scopeHeight);
scopeView.invalidate();
}
}
};
@ -101,7 +104,7 @@ public class MainActivity extends AppCompatActivity {
}
}
private void processSyncPulse(int[] pulses, int[] lines, int index) {
private boolean processSyncPulse(int[] pulses, int[] lines, int index) {
for (int i = 1; i < lines.length; ++i)
lines[i - 1] = lines[i];
lines[lines.length - 1] = index - pulses[pulses.length - 1];
@ -109,9 +112,9 @@ public class MainActivity extends AppCompatActivity {
pulses[i - 1] = pulses[i];
pulses[pulses.length - 1] = index;
if (lines[0] == 0)
return;
return false;
if (scanLineStdDev(lines) > scanLineToleranceSamples)
return;
return false;
if (pulses[0] >= lines[0]) {
int lineSamples = lines[0];
int endPulse = pulses[0];
@ -133,11 +136,10 @@ public class MainActivity extends AppCompatActivity {
for (int i = 0; i < scopeWidth; ++i)
scopePixels[scopeWidth * (curLine + scopeHeight) + i] = scopePixels[scopeWidth * curLine + i];
curLine = (curLine + 1) % scopeHeight;
scopeBitmap.setPixels(scopePixels, scopeWidth * curLine, scopeWidth, 0, 0, scopeWidth, scopeHeight);
scopeView.invalidate();
return true;
}
private void visualizeSignal(boolean syncPulseDetected) {
private boolean visualizeSignal(boolean syncPulseDetected) {
int syncPulseIndex = curSample + demodulator.syncPulseOffset;
for (float v : recordBuffer) {
scanLineBuffer[curSample++] = v;
@ -155,16 +157,14 @@ public class MainActivity extends AppCompatActivity {
if (syncPulseDetected) {
switch (demodulator.syncPulseWidth) {
case FiveMilliSeconds:
processSyncPulse(last5msSyncPulses, last5msScanLines, syncPulseIndex);
break;
return processSyncPulse(last5msSyncPulses, last5msScanLines, syncPulseIndex);
case NineMilliSeconds:
processSyncPulse(last9msSyncPulses, last9msScanLines, syncPulseIndex);
break;
return processSyncPulse(last9msSyncPulses, last9msScanLines, syncPulseIndex);
case TwentyMilliSeconds:
processSyncPulse(last20msSyncPulses, last20msScanLines, syncPulseIndex);
break;
return processSyncPulse(last20msSyncPulses, last20msScanLines, syncPulseIndex);
}
}
return false;
}
void initTools(int sampleRate) {