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When try_creating_fbo fails it returns 0 to report the error and if it succeeds it returns ‘flags’. However cogl_offscreen_new_to_texture also passes in 0 for the flags as the last fallback to create the fbo with nothing but the color buffer. In that case it will return 0 regardless of whether it succeeded so the last fallback will always be considered a failure. To fix this it now just returns a gboolean to indicate whether it succeeded and the flags used for each attempt is assigned when passing the argument rather than from the return value of the function. Also if the only configuration that succeeded was with flags==0 then it would always try all combinations because last_working_flags would also be zero. To avoid this it now uses a separate gboolean to mark whether we found a successful set of flags. http://bugzilla.openedhand.com/show_bug.cgi?id=1873 |
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