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Report delta times for vblank misses.

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For debugging purposes, report time from PageFlip is queued, till it
actually happens.
This commit is contained in:
Themaister 2012-09-19 00:44:50 +02:00
parent 145bf19208
commit 580cf1c07e
1 changed files with 11 additions and 6 deletions
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17
gfx/context/drm_egl_ctx.c
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@ -32,6 +32,7 @@
#include <signal.h>
#include <unistd.h>
#include <sched.h>
#include <sys/time.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
@ -108,15 +109,14 @@ static unsigned last_page_flip;
static uint64_t first_usec;
static uint64_t last_usec;
static uint64_t flip_request_usec;
static unsigned missed_vblanks;
static unsigned hit_vblanks;
static void page_flip_handler(int fd, unsigned frame, unsigned sec, unsigned usec, void *data)
{
(void)fd;
(void)frame;
(void)sec;
(void)usec;
uint64_t current_usec = (uint64_t)sec * 1000000 + usec;
if (!first_page_flip)
@ -135,15 +135,16 @@ static void page_flip_handler(int fd, unsigned frame, unsigned sec, unsigned use
RARCH_LOG("[KMS/EGL]: Missed %u VBlank(s) (Frame: %u).\n",
missed, frame - first_page_flip);
missed_vblanks += missed;
unsigned flip_time = current_usec - flip_request_usec;
RARCH_LOG("\tDelta request => flip: %.5f ms.\n", flip_time / 1000.0);
}
}
last_page_flip = frame;
last_usec = current_usec;
bool *waiting = (bool*)data;
*waiting = false;
*(bool*)data = false;
}
static bool waiting_for_flip;
@ -196,6 +197,10 @@ static void queue_flip(void)
return;
}
struct timeval tv;
gettimeofday(&tv, NULL);
flip_request_usec = (uint64_t)tv.tv_sec * 1000000 + tv.tv_usec;
waiting_for_flip = true;
}