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authorIan Romanick <[email protected]>2015-11-12 09:37:27 -0800
committerIan Romanick <[email protected]>2016-02-10 10:59:55 -0800
commit0ecc9d907e6a76367ddf1879d3083c794337a8b5 (patch)
tree115110ad4f46e922995867988941a8b2ecf61288 /.travis.yml
parent3aeff21fbfb33197538a30871dc054064dc0ff33 (diff)
meta/decompress: Don't pollute the renderbuffer namespace
tl;dr: For many types of GL object, we can *NEVER* use the Gen function. In OpenGL ES (all versions!) and OpenGL compatibility profile, applications don't have to call Gen functions. The GL spec is very clear about how you can mix-and-match generated names and non-generated names: you can use any name you want for a particular object type until you call the Gen function for that object type. Here's the problem scenario: - Application calls a meta function that generates a name. The first Gen will probably return 1. - Application decides to use the same name for an object of the same type without calling Gen. Many demo programs use names 1, 2, 3, etc. without calling Gen. - Application calls the meta function again, and the meta function replaces the data. The application's data is lost, and the app fails. Have fun debugging that. Fixes piglit 'object-namespace-pollution glGetTexImage-compressed renderbuffer' test. Signed-off-by: Ian Romanick <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92363 Reviewed-by: Anuj Phogat <[email protected]>
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