diff options
| author | Neil Roberts <neil@linux.intel.com> | 2013-10-29 20:13:45 +0000 |
|---|---|---|
| committer | Kristian Høgsberg <krh@bitplanet.net> | 2013-12-07 22:26:23 -0800 |
| commit | 40c0c3f91eeb747b86df64579e3b3706cc5450af (patch) | |
| tree | 6cb7746f09c17951a2aa67ad7385c60295c51fa2 /protocol | |
| parent | 65a07f8aef9538602792b33cb33fe856708173c0 (diff) | |
| download | weston-40c0c3f91eeb747b86df64579e3b3706cc5450af.tar.gz | |
tests: Test whether a simple EGL main loop uses too many buffers
This adds a test that tries to simulate a simple game loop that would
be like this:
while (1) {
draw_something();
eglSwapBuffers();
}
In this case the test is relying on eglSwapBuffers to throttle to a
sensible frame rate.
The test then verifies that only 2 EGL buffers are used. This is done
via a new request and event in the wayland-test protocol.
Currently this causes 3 buffers to be created because the release
event generated by the swap buffers is not processed by Mesa until it
blocks for the frame complete event in the next swap buffers call, but
that is too late.
This can be fixed in Mesa by issuing a sync request after the swap
buffers and blocking on it before deciding whether to allocate a new
buffer.
Diffstat (limited to 'protocol')
| -rw-r--r-- | protocol/wayland-test.xml | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/protocol/wayland-test.xml b/protocol/wayland-test.xml index 2993f087..18b66253 100644 --- a/protocol/wayland-test.xml +++ b/protocol/wayland-test.xml @@ -51,5 +51,12 @@ <arg name="x" type="fixed"/> <arg name="y" type="fixed"/> </event> + <request name="get_n_egl_buffers"> + <!-- causes a n_egl_buffers event to be sent which reports how many + buffer objects are live for the client --> + </request> + <event name="n_egl_buffers"> + <arg name="n" type="uint"/> + </event> </interface> </protocol> |