st/mesa: invalidate readpixels cache
authorNicolai Hähnle <nicolai.haehnle@amd.com>
Thu, 9 Jun 2016 10:16:26 +0000 (12:16 +0200)
committerNicolai Hähnle <nicolai.haehnle@amd.com>
Tue, 21 Jun 2016 08:54:19 +0000 (10:54 +0200)
Whenever a draw happens or some other function call might change the result
of future glReadPixels calls, we must invalidate the cache.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

No differences found