histogram fix, use_thumbnails fix, zoom popup width tweak, cut/paste for mixer apply...

[goodguy/cinelerra.git] / cinelerra-5.1 / plugins / histogram / histogram.C

diff --git a/cinelerra-5.1/plugins/histogram/histogram.C b/cinelerra-5.1/plugins/histogram/histogram.C
index da67c208694425820ffdc42af07f0949562086d7..1d24200135994d351b7620d087c85760f0b58b0e 100644 (file)
--- a/cinelerra-5.1/plugins/histogram/histogram.C
+++ b/cinelerra-5.1/plugins/histogram/histogram.C
@@ -280,7 +280,8 @@ float HistogramMain::calculate_level(float input,
 // Scale to input range
        if(!EQUIV(config.high_input[mode], config.low_input[mode]))
        {
-               output = (input - config.low_input[mode]) /
+               output = input < config.low_input[mode] ? 0 :
+                   (input - config.low_input[mode]) /
                        (config.high_input[mode] - config.low_input[mode]);
        }
        else