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[stage] Warn if perspective's z_far - z_near is 0

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Since we have to do (z_far - z_near) and use it in a division we
should check that the user is not passing a value that would
cause a division by zero.
This commit is contained in:
Emmanuele Bassi 2009-04-15 17:27:04 +01:00
parent 709bb69970
commit d4b47af153
1 changed files with 1 additions and 0 deletions
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clutter/clutter-stage.c
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@ -924,6 +924,7 @@ clutter_stage_set_perspective (ClutterStage *stage,
g_return_if_fail (CLUTTER_IS_STAGE (stage)); g_return_if_fail (CLUTTER_IS_STAGE (stage));
g_return_if_fail (perspective != NULL); g_return_if_fail (perspective != NULL);
g_return_if_fail (perspective->z_far - perspective->z_near != 0);
priv = stage->priv; priv = stage->priv;