[TF][FIX] the inverse color QR code scanned without vision

Telegram-FOSS-Team · Jun 26, 2021 · 0d27018 · 0d27018
1 parent 53049f5
commit 0d27018
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/TMessagesProj/src/main/java/org/telegram/ui/CameraScanActivity.java b/TMessagesProj/src/main/java/org/telegram/ui/CameraScanActivity.java
@@ -35,6 +35,7 @@
 
 import com.google.zxing.BinaryBitmap;
 import com.google.zxing.LuminanceSource;
+import com.google.zxing.NotFoundException;
 import com.google.zxing.PlanarYUVLuminanceSource;
 import com.google.zxing.RGBLuminanceSource;
 import com.google.zxing.Result;
@@ -616,7 +617,15 @@ private String tryReadQr(byte[] data, Size size, int x, int y, int side, Bitmap
                     source = new PlanarYUVLuminanceSource(data, size.getWidth(), size.getHeight(), x, y, side, side, false);
                 }
 
-                Result result = qrReader.decode(new BinaryBitmap(new GlobalHistogramBinarizer(source)));
+                Result result = null;
+                try {
+                    result = qrReader.decode(new BinaryBitmap(new GlobalHistogramBinarizer(source)));
+                } catch (NotFoundException e) {
+                    try {
+                        result = qrReader.decode(new BinaryBitmap(new GlobalHistogramBinarizer(source.invert())));
+                    } catch (NotFoundException ignore) {
+                    }
+                }
                 if (result == null) {
                     onNoQrFound();
                     return null;