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timeline: Add GPU timestamp timepoint argument

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The purpose of this argument is to hold timestamp information about
events that occurred on the GPU. This argument allows us to include GPU
timestamps in timepoints such as the beginning and end of frame
rendering.

Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Alexandros Frantzis 2017-09-27 15:09:13 +03:00 committed by Pekka Paalanen
parent 3052bc7e6d
commit 75d38ef1ed
2 changed files with 14 additions and 0 deletions
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12
libweston/timeline.c
View File

@ -232,12 +232,24 @@ emit_vblank_timestamp(struct timeline_emit_context *ctx, void *obj)
return 1;
}
static int
emit_gpu_timestamp(struct timeline_emit_context *ctx, void *obj)
{
struct timespec *ts = obj;
fprintf(ctx->cur, "\"gpu\":[%" PRId64 ", %ld]",
(int64_t)ts->tv_sec, ts->tv_nsec);
return 1;
}
typedef int (*type_func)(struct timeline_emit_context *ctx, void *obj);
static const type_func type_dispatch[] = {
[TLT_OUTPUT] = emit_weston_output,
[TLT_SURFACE] = emit_weston_surface,
[TLT_VBLANK] = emit_vblank_timestamp,
[TLT_GPU] = emit_gpu_timestamp,
};
WL_EXPORT void

2
libweston/timeline.h
View File

@ -42,6 +42,7 @@ enum timeline_type {
TLT_OUTPUT,
TLT_SURFACE,
TLT_VBLANK,
TLT_GPU,
};
#define TYPEVERIFY(type, arg) ({ \
@ -53,6 +54,7 @@ enum timeline_type {
#define TLP_OUTPUT(o) TLT_OUTPUT, TYPEVERIFY(struct weston_output *, (o))
#define TLP_SURFACE(s) TLT_SURFACE, TYPEVERIFY(struct weston_surface *, (s))
#define TLP_VBLANK(t) TLT_VBLANK, TYPEVERIFY(const struct timespec *, (t))
#define TLP_GPU(t) TLT_GPU, TYPEVERIFY(const struct timespec *, (t))
#define TL_POINT(...) do { \
if (weston_timeline_enabled_) \