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author | Keith Packard <keithp@keithp.com> | 2013-07-26 18:46:45 -0700 |
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committer | Keith Packard <keithp@keithp.com> | 2020-03-29 13:47:09 -0700 |
commit | 3f2af30bd94ea3012bc1d1bde82f7c9a1c4dea27 (patch) | |
tree | 7373ec89b489d2edfe0c8c1a329cac12c932ea1e /transform.c | |
parent | 46dac260d384e034aaabd576d9b818d39f4821c6 (diff) |
Add support for the 'Present' extension. [v3]
This makes updating the eyes nicely vblank synchronized.
v2:
Ensure extensions exist before calling query_version
These calls add calls to xcb_get_extension_data before calling
query_version calls, as those calls will mark the connection
with an error if made against an X server without the
extension present.
Suggested-by: Uli Schlachter <psychon@znc.in>
v3:
check the 'present' field in the return from
xcb_get_extension_data; the xcb_get_extension_data call will
always succeed (save for out of memory), the only way to tell
if the extension is supported in the target X server is to
test the 'present' field in the query extension reply value.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'transform.c')
0 files changed, 0 insertions, 0 deletions