Fix progress bar not starting from 0 when verifying the data track

src/common/cd_image_hasher.cpp

@@ -46,15 +46,19 @@ static bool ReadTrack(CDImage* image, u8 track, MD5Digest* digest, ProgressCallb
 
   progress_callback->PushState();
 
-  progress_callback->SetProgressRange(2);
+  const bool dataTrack = track == 1;
+  progress_callback->SetProgressRange(dataTrack ? 1 : 2);
+
+  u8 progress = 0;
   for (u8 index = 0; index < INDICES_TO_READ; index++)
   {
-    progress_callback->SetProgressValue(index);
+    progress_callback->SetProgressValue(progress);
 
     // skip index 0 if data track
-    if (track == 1 && index == 0)
+    if (dataTrack && index == 0)
       continue;
 
+    progress++;
     progress_callback->PushState();
     if (!ReadIndex(image, track, index, digest, progress_callback))
     {
@@ -66,7 +70,7 @@ static bool ReadTrack(CDImage* image, u8 track, MD5Digest* digest, ProgressCallb
     progress_callback->PopState();
   }
 
-  progress_callback->SetProgressValue(INDICES_TO_READ);
+  progress_callback->SetProgressValue(progress);
   progress_callback->PopState();
   return true;
 }