[Mesa-dev] [PATCH] llvmpipe: Implement PIPE_QUERY_TIMESTAMP and PIPE_QUERY_TIME_ELAPSED.
airlied at gmail.com
Mon Dec 3 02:08:10 PST 2012
On Mon, Dec 3, 2012 at 7:33 PM, Dave Airlie <airlied at gmail.com> wrote:
>> diff --git a/src/gallium/auxiliary/os/os_time.c b/src/gallium/auxiliary/os/os_time.c
>> index 3e9d50a..4055125 100644
>> --- a/src/gallium/auxiliary/os/os_time.c
>> +++ b/src/gallium/auxiliary/os/os_time.c
>> @@ -36,6 +36,7 @@
>> #include "pipe/p_config.h"
>> #if defined(PIPE_OS_UNIX)
>> +# include <time.h> /* timeval */
>> # include <sys/time.h> /* timeval */
>> #elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
>> # include <windows.h>
>> @@ -68,6 +69,20 @@ os_time_get(void)
>> +#if defined(PIPE_OS_UNIX)
>> + struct timespec tv;
>> + clock_gettime(CLOCK_REALTIME, &tv);
>> + return tv.tv_nsec + tv.tv_sec * 1000000000LL;
>> +#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
>> + return os_time_get() * 1000;
> I wonder if we should be using CLOCK_MONOTONIC_RAW (on new Linux) or
> CLOCK_MONOTONIC here, but I also wonder if we should do the same for
> os_time_get so they are the same clock.
> I ran some piglits on this, and it found it doesn't provide the
> screen->get_timestamp callback, but that looks like a trivial
> addition, though with that it still fails a test, I'll see if I can
> spot the problem.
Okay the attached patch fixes up the piglit fails I see with this patch.
feel free to merge it in.
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