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3fbd1b0cb5
This automatically adjusts the number of buffers that we want based on
what swapping mode the X server is using and the current swap interval:
swap mode interval buffers
copy > 0 1
copy 0 2
flip > 0 2
flip 0 3
Note that flip with swap interval 0 is currently limited to twice the
underlying refresh rate because of how the kernel manages flipping. Moving
from 3 to 4 buffers would help, but that seems ridiculous.
v2: Just update num_back at the point that the values that change num_back
change. This means we'll have the updated value at the point that the
freeing of old going-to-be-unused backbuffers happens, which might not
have been the case before (change by anholt, acked by keithp).
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
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| egl | ||
| gallium | ||
| gbm | ||
| getopt | ||
| glsl | ||
| glx | ||
| gtest | ||
| hgl | ||
| loader | ||
| mapi | ||
| mesa | ||
| Makefile.am | ||
| SConscript | ||