recorder: Always initialize prev when computing the run-length

We need to initialize prev when we handle the initial pixel in a
rectangle, or we may detect the following pixel as identical or different
when it's not.  This causes the top-left pixel in a rectangle to
occasionally be wrong leaving a trail of "dirty pixels" in the capture.
dev
Kristian Høgsberg 13 years ago
parent e0f832b4f0
commit 9c9b3a4b46
  1. 2
      src/screenshooter.c

@ -307,8 +307,8 @@ weston_recorder_frame_notify(struct wl_listener *listener, void *data)
} else {
p = output_run(p, prev, run);
run = 1;
prev = delta;
}
prev = delta;
}
}

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