(Resending. I accidentally sent this to xorg rather than xorg-devel).
This series extends the DRI2 protocol by adding a new request, DRI2GetParam.
The new request effectively allows clients to perform feature detection on the
DDX.
When Intel begins adding MSAA support to its DDX, having a clean way to do
feature detection will allow us to avoid painful painful feature-detection
hacks.
I have written several functional tests in Piglit for this series. All tests
pass. You can find the tests at piglit:tests/dri2/dri2-getparam*.c. To run
the tests, you need the dri2getparam branch in the following repos:
git://people.freedesktop.org/~chadversary/xorg.proto.dri2proto.git
/xorg.xserver.git
/xorg.driver.xf86-video-intel.git
/xcb.proto.git
/xcb.libxcb.git
/piglit.git
The series touches both dri2proto and the xserver.
v2:
- Fixed typo "param_is", per anholt.
- Changed param from CARD64 to CARD32, per krh and anholt.
- Removed namespaces, per krh. Instead, there is an enum range reserved
for each the server and the ddx.
- Updated Piglit tests and verified that tests still pass.
v3:
- Moved 'is_param_recognized' into an unused byte in the packet header,
per Alan.
- Clarified, in protocol documentation, that 1) there are no server
parameters defined yet and but that they will be defined in the
dri2proto headers; and that 2) driver parameters are private to each
driver
and are defined by the respective driver's headers.
- Fixed typos, per Alan.
- Verified that tests still pass.
Chad Versace (2):
[dri2proto] dri2proto: Add DRI2GetParam request
[xserver] dri2: Add DRI2GetParam request
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