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utilize alpha-blending for a nicer frequency plot

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This commit is contained in:
Ahmet Inan 2024-05-08 08:20:21 +02:00
parent ec67367dd3
commit 0c690a156e
1 changed files with 1 additions and 1 deletions
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2
app/src/main/java/xdsopl/robot36/MainActivity.java
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@ -158,7 +158,7 @@ public class MainActivity extends AppCompatActivity {
}
int factor = 960 / samples;
for (int i = 0; i < stride; ++i)
freqPlotBuffer.pixels[line + i] = 0xff000000 | 0x00010101 * Math.min(factor * freqPlotBuffer.pixels[line + i], 255);
freqPlotBuffer.pixels[line + i] = 0x00FFFFFF & fgColor | Math.min(factor * freqPlotBuffer.pixels[line + i], 255) << 24;
System.arraycopy(freqPlotBuffer.pixels, line, freqPlotBuffer.pixels, line + stride * (freqPlotBuffer.height / 2), stride);
freqPlotBuffer.line = (freqPlotBuffer.line + 1) % (freqPlotBuffer.height / 2);
int offset = stride * (freqPlotBuffer.line + freqPlotBuffer.height / 2 - height);