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https://gitlab.freedesktop.org/wayland/weston
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![Alexandros Frantzis](/assets/img/avatar_default.png)
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>
305 lines
6.5 KiB
C
305 lines
6.5 KiB
C
/*
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* Copyright © 2014 Pekka Paalanen <pq@iki.fi>
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* Copyright © 2014 Collabora, Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <time.h>
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#include <assert.h>
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#include "timeline.h"
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#include "compositor.h"
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#include "file-util.h"
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struct timeline_log {
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clock_t clk_id;
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FILE *file;
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unsigned series;
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struct wl_listener compositor_destroy_listener;
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};
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WL_EXPORT int weston_timeline_enabled_;
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static struct timeline_log timeline_ = { CLOCK_MONOTONIC, NULL, 0 };
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static int
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weston_timeline_do_open(void)
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{
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const char *prefix = "weston-timeline-";
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const char *suffix = ".log";
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char fname[1000];
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timeline_.file = file_create_dated(prefix, suffix,
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fname, sizeof(fname));
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if (!timeline_.file) {
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const char *msg;
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switch (errno) {
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case ETIME:
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msg = "failure in datetime formatting";
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break;
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default:
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msg = strerror(errno);
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}
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weston_log("Cannot open '%s*%s' for writing: %s\n",
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prefix, suffix, msg);
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return -1;
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}
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weston_log("Opened timeline file '%s'\n", fname);
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return 0;
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}
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static void
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timeline_notify_destroy(struct wl_listener *listener, void *data)
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{
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weston_timeline_close();
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}
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void
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weston_timeline_open(struct weston_compositor *compositor)
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{
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if (weston_timeline_enabled_)
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return;
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if (weston_timeline_do_open() < 0)
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return;
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timeline_.compositor_destroy_listener.notify = timeline_notify_destroy;
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wl_signal_add(&compositor->destroy_signal,
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&timeline_.compositor_destroy_listener);
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if (++timeline_.series == 0)
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++timeline_.series;
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weston_timeline_enabled_ = 1;
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}
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void
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weston_timeline_close(void)
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{
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if (!weston_timeline_enabled_)
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return;
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weston_timeline_enabled_ = 0;
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wl_list_remove(&timeline_.compositor_destroy_listener.link);
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fclose(timeline_.file);
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timeline_.file = NULL;
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weston_log("Timeline log file closed.\n");
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}
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struct timeline_emit_context {
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FILE *cur;
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FILE *out;
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unsigned series;
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};
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static unsigned
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timeline_new_id(void)
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{
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static unsigned idc;
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if (++idc == 0)
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++idc;
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return idc;
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}
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static int
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check_series(struct timeline_emit_context *ctx,
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struct weston_timeline_object *to)
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{
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if (to->series == 0 || to->series != ctx->series) {
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to->series = ctx->series;
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to->id = timeline_new_id();
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return 1;
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}
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if (to->force_refresh) {
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to->force_refresh = 0;
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return 1;
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}
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return 0;
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}
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static void
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fprint_quoted_string(FILE *fp, const char *str)
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{
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if (!str) {
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fprintf(fp, "null");
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return;
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}
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fprintf(fp, "\"%s\"", str);
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}
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static int
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emit_weston_output(struct timeline_emit_context *ctx, void *obj)
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{
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struct weston_output *o = obj;
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if (check_series(ctx, &o->timeline)) {
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fprintf(ctx->out, "{ \"id\":%u, "
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"\"type\":\"weston_output\", \"name\":",
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o->timeline.id);
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fprint_quoted_string(ctx->out, o->name);
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fprintf(ctx->out, " }\n");
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}
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fprintf(ctx->cur, "\"wo\":%u", o->timeline.id);
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return 1;
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}
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static void
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check_weston_surface_description(struct timeline_emit_context *ctx,
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struct weston_surface *s)
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{
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struct weston_surface *mains;
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char d[512];
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char mainstr[32];
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if (!check_series(ctx, &s->timeline))
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return;
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mains = weston_surface_get_main_surface(s);
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if (mains != s) {
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check_weston_surface_description(ctx, mains);
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if (snprintf(mainstr, sizeof(mainstr),
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", \"main_surface\":%u", mains->timeline.id) < 0)
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mainstr[0] = '\0';
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} else {
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mainstr[0] = '\0';
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}
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if (!s->get_label || s->get_label(s, d, sizeof(d)) < 0)
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d[0] = '\0';
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fprintf(ctx->out, "{ \"id\":%u, "
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"\"type\":\"weston_surface\", \"desc\":", s->timeline.id);
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fprint_quoted_string(ctx->out, d[0] ? d : NULL);
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fprintf(ctx->out, "%s }\n", mainstr);
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}
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static int
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emit_weston_surface(struct timeline_emit_context *ctx, void *obj)
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{
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struct weston_surface *s = obj;
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check_weston_surface_description(ctx, s);
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fprintf(ctx->cur, "\"ws\":%u", s->timeline.id);
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return 1;
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}
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static int
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emit_vblank_timestamp(struct timeline_emit_context *ctx, void *obj)
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{
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struct timespec *ts = obj;
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fprintf(ctx->cur, "\"vblank\":[%" PRId64 ", %ld]",
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(int64_t)ts->tv_sec, ts->tv_nsec);
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return 1;
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}
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static int
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emit_gpu_timestamp(struct timeline_emit_context *ctx, void *obj)
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{
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struct timespec *ts = obj;
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fprintf(ctx->cur, "\"gpu\":[%" PRId64 ", %ld]",
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(int64_t)ts->tv_sec, ts->tv_nsec);
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return 1;
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}
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typedef int (*type_func)(struct timeline_emit_context *ctx, void *obj);
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static const type_func type_dispatch[] = {
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[TLT_OUTPUT] = emit_weston_output,
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[TLT_SURFACE] = emit_weston_surface,
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[TLT_VBLANK] = emit_vblank_timestamp,
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[TLT_GPU] = emit_gpu_timestamp,
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};
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WL_EXPORT void
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weston_timeline_point(const char *name, ...)
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{
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va_list argp;
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struct timespec ts;
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enum timeline_type otype;
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void *obj;
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char buf[512];
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struct timeline_emit_context ctx;
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clock_gettime(timeline_.clk_id, &ts);
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ctx.out = timeline_.file;
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ctx.cur = fmemopen(buf, sizeof(buf), "w");
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ctx.series = timeline_.series;
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if (!ctx.cur) {
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weston_log("Timeline error in fmemopen, closing.\n");
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weston_timeline_close();
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return;
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}
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fprintf(ctx.cur, "{ \"T\":[%" PRId64 ", %ld], \"N\":\"%s\"",
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(int64_t)ts.tv_sec, ts.tv_nsec, name);
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va_start(argp, name);
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while (1) {
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otype = va_arg(argp, enum timeline_type);
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if (otype == TLT_END)
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break;
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obj = va_arg(argp, void *);
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if (type_dispatch[otype]) {
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fprintf(ctx.cur, ", ");
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type_dispatch[otype](&ctx, obj);
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}
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}
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va_end(argp);
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fprintf(ctx.cur, " }\n");
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fflush(ctx.cur);
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if (ferror(ctx.cur)) {
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weston_log("Timeline error in constructing entry, closing.\n");
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weston_timeline_close();
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} else {
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fprintf(ctx.out, "%s", buf);
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}
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fclose(ctx.cur);
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}
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