xdsopl/robot36
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Fixed indents to tabs

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This commit is contained in:
Marek Ossowski 2025-08-19 23:19:26 +02:00
parent 02018686b6
commit 5aa3be6cc9
2 changed files with 105 additions and 105 deletions
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8
app/src/main/java/xdsopl/robot36/BaseMode.java
View file

@ -3,8 +3,8 @@ package xdsopl.robot36;
import android.graphics.Bitmap;
public abstract class BaseMode implements Mode {
@Override
public Bitmap postProcessScopeImage(Bitmap bmp) {
return Bitmap.createScaledBitmap(bmp, bmp.getWidth() / 3, bmp.getHeight() / 3, true);
}
@Override
public Bitmap postProcessScopeImage(Bitmap bmp) {
return Bitmap.createScaledBitmap(bmp, bmp.getWidth() / 3, bmp.getHeight() / 3, true);
}
}

202
app/src/main/java/xdsopl/robot36/HFFax.java
View file

@ -9,123 +9,123 @@ import android.graphics.Rect;
* HF Fax, IOC 576, 120 lines per minute
*/
public class HFFax extends BaseMode {
private final ExponentialMovingAverage lowPassFilter;
private final String name;
private final int sampleRate;
private final float[] cumulated;
private int horizontalShift = 0;
private final ExponentialMovingAverage lowPassFilter;
private final String name;
private final int sampleRate;
private final float[] cumulated;
private int horizontalShift = 0;
HFFax(String name, int sampleRate) {
this.name = name;
lowPassFilter = new ExponentialMovingAverage();
this.sampleRate = sampleRate;
cumulated = new float[getWidth()];
}
HFFax(String name, int sampleRate) {
this.name = name;
lowPassFilter = new ExponentialMovingAverage();
this.sampleRate = sampleRate;
cumulated = new float[getWidth()];
}
private float freqToLevel(float frequency, float offset) {
return 0.5f * (frequency - offset + 1.f);
}
private float freqToLevel(float frequency, float offset) {
return 0.5f * (frequency - offset + 1.f);
}
@Override
public String getName() {
return name;
}
@Override
public String getName() {
return name;
}
@Override
public int getCode() {
return -1;
}
@Override
public int getCode() {
return -1;
}
@Override
public int getWidth() {
return 1808;
}
@Override
public int getWidth() {
return 1808;
}
@Override
public int getHeight() {
return 1200;
}
@Override
public int getHeight() {
return 1200;
}
@Override
public int getBegin() {
return 0;
}
@Override
public int getBegin() {
return 0;
}
@Override
public int getFirstSyncPulseIndex() {
return -1;
}
@Override
public int getFirstSyncPulseIndex() {
return -1;
}
@Override
public int getScanLineSamples() {
return sampleRate / 2;
}
@Override
public int getScanLineSamples() {
return sampleRate / 2;
}
@Override
public void reset() {
}
@Override
public void reset() {
}
@Override
public Bitmap postProcessScopeImage(Bitmap bmp) {
if (horizontalShift > 0) {
Bitmap bmpMutable = Bitmap.createBitmap(getWidth(), bmp.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bmpMutable);
canvas.drawBitmap(
bmp,
new Rect(0, 0, horizontalShift, bmp.getHeight()),
new Rect(getWidth() - horizontalShift, 0, getWidth(), bmp.getHeight()),
null);
canvas.drawBitmap(
bmp,
new Rect(horizontalShift, 0, getWidth(), bmp.getHeight()),
new Rect(0, 1, getWidth() - horizontalShift, bmp.getHeight() + 1),
null);
@Override
public Bitmap postProcessScopeImage(Bitmap bmp) {
if (horizontalShift > 0) {
Bitmap bmpMutable = Bitmap.createBitmap(getWidth(), bmp.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bmpMutable);
canvas.drawBitmap(
bmp,
new Rect(0, 0, horizontalShift, bmp.getHeight()),
new Rect(getWidth() - horizontalShift, 0, getWidth(), bmp.getHeight()),
null);
canvas.drawBitmap(
bmp,
new Rect(horizontalShift, 0, getWidth(), bmp.getHeight()),
new Rect(0, 1, getWidth() - horizontalShift, bmp.getHeight() + 1),
null);
return bmpMutable;
}
return bmpMutable;
}
return bmp;
}
return bmp;
}
@Override
public boolean decodeScanLine(PixelBuffer pixelBuffer, float[] scratchBuffer, float[] scanLineBuffer, int scopeBufferWidth, int syncPulseIndex, int scanLineSamples, float frequencyOffset) {
if (syncPulseIndex < 0 || syncPulseIndex + scanLineSamples > scanLineBuffer.length)
return false;
int horizontalPixels = getWidth();
lowPassFilter.cutoff(horizontalPixels, 2 * scanLineSamples, 2);
lowPassFilter.reset();
for (int i = 0; i < scanLineSamples; ++i)
scratchBuffer[i] = lowPassFilter.avg(scanLineBuffer[i]);
lowPassFilter.reset();
for (int i = scanLineSamples - 1; i >= 0; --i)
scratchBuffer[i] = freqToLevel(lowPassFilter.avg(scratchBuffer[i]), frequencyOffset);
for (int i = 0; i < horizontalPixels; ++i) {
int position = (i * scanLineSamples) / horizontalPixels;
int color = ColorConverter.GRAY(scratchBuffer[position]);
pixelBuffer.pixels[i] = color;
@Override
public boolean decodeScanLine(PixelBuffer pixelBuffer, float[] scratchBuffer, float[] scanLineBuffer, int scopeBufferWidth, int syncPulseIndex, int scanLineSamples, float frequencyOffset) {
if (syncPulseIndex < 0 || syncPulseIndex + scanLineSamples > scanLineBuffer.length)
return false;
int horizontalPixels = getWidth();
lowPassFilter.cutoff(horizontalPixels, 2 * scanLineSamples, 2);
lowPassFilter.reset();
for (int i = 0; i < scanLineSamples; ++i)
scratchBuffer[i] = lowPassFilter.avg(scanLineBuffer[i]);
lowPassFilter.reset();
for (int i = scanLineSamples - 1; i >= 0; --i)
scratchBuffer[i] = freqToLevel(lowPassFilter.avg(scratchBuffer[i]), frequencyOffset);
for (int i = 0; i < horizontalPixels; ++i) {
int position = (i * scanLineSamples) / horizontalPixels;
int color = ColorConverter.GRAY(scratchBuffer[position]);
pixelBuffer.pixels[i] = color;
//accumulate recent values, forget old
float decay = 0.99f;
cumulated[i] = cumulated[i] * decay + Color.luminance(color) * (1 - decay);
}
//accumulate recent values, forget old
float decay = 0.99f;
cumulated[i] = cumulated[i] * decay + Color.luminance(color) * (1 - decay);
}
//try to detect "sync": thick white margin
int bestIndex = 0;
float bestValue = 0;
for (int x = 0; x < getWidth(); ++x)
{
float val = cumulated[x];
if (val > bestValue)
{
bestIndex = x;
bestValue = val;
}
}
//try to detect "sync": thick white margin
int bestIndex = 0;
float bestValue = 0;
for (int x = 0; x < getWidth(); ++x)
{
float val = cumulated[x];
if (val > bestValue)
{
bestIndex = x;
bestValue = val;
}
}
horizontalShift = bestIndex;
horizontalShift = bestIndex;
pixelBuffer.width = horizontalPixels;
pixelBuffer.height = 1;
return true;
}
pixelBuffer.width = horizontalPixels;
pixelBuffer.height = 1;
return true;
}
}