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Refactoring, added postProcessScopeImage

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This commit is contained in:
Marek Ossowski 2025-08-17 00:04:06 +02:00
parent 055d62b625
commit 34d34f435c
4 changed files with 43 additions and 22 deletions
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7
app/src/main/java/xdsopl/robot36/BaseMode.java
View file

@ -1,8 +1,15 @@
package xdsopl.robot36;
import android.graphics.Bitmap;
public abstract class BaseMode implements Mode {
@Override
public int getEstimatedHorizontalShift() {
return 0;
}
@Override
public Bitmap postProcessScopeImage(Bitmap bmp) {
return Bitmap.createScaledBitmap(bmp, bmp.getWidth() / 3, bmp.getHeight() / 3, true);
}
}

26
app/src/main/java/xdsopl/robot36/HFFax.java
View file

@ -1,6 +1,9 @@
package xdsopl.robot36;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Rect;
/**
* HF Fax, IOC 576, 120 lines per minute
@ -67,6 +70,29 @@ public class HFFax extends BaseMode {
public void reset() {
}
@Override
public Bitmap postProcessScopeImage(Bitmap bmp) {
int shift = getEstimatedHorizontalShift();
if (shift > 0) {
Bitmap bmpMutable = Bitmap.createBitmap(getWidth(), bmp.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bmpMutable);
canvas.drawBitmap(
bmp,
new Rect(0, 0, shift, bmp.getHeight()),
new Rect(getWidth() - shift, 0, getWidth(), bmp.getHeight()),
null);
canvas.drawBitmap(
bmp,
new Rect(shift, 0, getWidth(), bmp.getHeight()),
new Rect(0, 1, getWidth() - shift, bmp.getHeight() + 1),
null);
return bmpMutable;
}
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)

25
app/src/main/java/xdsopl/robot36/MainActivity.java
View file

@ -15,9 +15,7 @@ import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Rect;
import android.media.AudioFormat;
import android.media.AudioRecord;
import android.media.MediaRecorder;
@ -846,27 +844,10 @@ public class MainActivity extends AppCompatActivity {
int stride = scopeBuffer.width;
int offset = stride * scopeBuffer.line;
Bitmap bmp = Bitmap.createBitmap(scopeBuffer.pixels, offset, stride, width, height, Bitmap.Config.ARGB_8888);
if (decoder != null && decoder.currentMode.getName().equals("HF Fax")) {
Mode mode = decoder.currentMode;
int shift = mode.getEstimatedHorizontalShift();
if (shift > 0) {
Bitmap bmpMutable = Bitmap.createBitmap(mode.getWidth(), bmp.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bmpMutable);
canvas.drawBitmap(
bmp,
new Rect(0, 0, shift, bmp.getHeight()),
new Rect(mode.getWidth() - shift, 0, mode.getWidth(), bmp.getHeight()),
null);
canvas.drawBitmap(
bmp,
new Rect(shift, 0, mode.getWidth(), bmp.getHeight()),
new Rect(0, 1, mode.getWidth() - shift, bmp.getHeight() + 1),
null);
bmp = bmpMutable;
}
} else {
bmp = Bitmap.createScaledBitmap(bmp, width / 3, height / 3, true);
if (decoder != null)
{
bmp = decoder.currentMode.postProcessScopeImage(bmp);
}
storeBitmap(bmp);

7
app/src/main/java/xdsopl/robot36/Mode.java
View file

@ -6,6 +6,8 @@ Copyright 2024 Ahmet Inan <xdsopl@gmail.com>
package xdsopl.robot36;
import android.graphics.Bitmap;
public interface Mode {
/**
* @return mode name
@ -47,6 +49,11 @@ public interface Mode {
*/
int getEstimatedHorizontalShift();
/**
* Adjust scope image before saving
*/
Bitmap postProcessScopeImage(Bitmap bmp);
/**
* Reset internal state.
*/