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// All MIT/x11 Licensed Code in this file may be relicensed freely under the GPL
// or LGPL licenses.
#include <stdio.h>
#include <stdlib.h>
#include <survive.h>
#include <string.h>
#include <sys/time.h>
#include "survive_config.h"
#include "survive_default_devices.h"
#include "redist/os_generic.h"
struct SurvivePlaybackData {
SurviveContext *ctx;
const char *playback_dir;
FILE *playback_file;
int lineno;
FLT time_factor;
double next_time_us;
};
typedef struct SurvivePlaybackData SurvivePlaybackData;
double timestamp_in_us() {
static double start_time_us = 0;
if (start_time_us == 0.)
start_time_us = OGGetAbsoluteTime();
return OGGetAbsoluteTime() - start_time_us;
}
static int parse_and_run_imu(const char *line, SurvivePlaybackData *driver) {
char dev[10];
int timecode = 0;
FLT accelgyro[6];
int mask;
int id;
int rr =
sscanf(line, "I %s %d %d " FLT_format " " FLT_format " " FLT_format
" " FLT_format " " FLT_format " " FLT_format "%d",
dev, &mask, &timecode, &accelgyro[0], &accelgyro[1],
&accelgyro[2], &accelgyro[3], &accelgyro[4], &accelgyro[5], &id);
if (rr != 10) {
fprintf(stderr, "Warning: On line %d, only %d values read: '%s'\n",
driver->lineno, rr, line);
return -1;
}
SurviveObject *so = survive_get_so_by_name(driver->ctx, dev);
if (!so) {
fprintf(stderr, "Could not find device named %s from lineno %d\n", dev,
driver->lineno);
return -1;
}
driver->ctx->imuproc(so, mask, accelgyro, timecode, id);
return 0;
}
static int parse_and_run_lightcode(const char *line,
SurvivePlaybackData *driver) {
char lhn[10];
char axn[10];
char dev[10];
uint32_t timecode = 0;
int sensor = 0;
int acode = 0;
int timeinsweep = 0;
uint32_t pulselength = 0;
uint32_t lh = 0;
int rr =
sscanf(line, "%8s %8s %8s %u %d %d %d %u %u\n", lhn, axn, dev,
&timecode, &sensor, &acode, &timeinsweep, &pulselength, &lh);
if (rr != 9) {
fprintf(stderr, "Warning: On line %d, only %d values read: '%s'\n",
driver->lineno, rr, line);
return -1;
}
SurviveObject *so = survive_get_so_by_name(driver->ctx, dev);
if (!so) {
fprintf(stderr, "Could not find device named %s from lineno %d\n", dev,
driver->lineno);
return -1;
}
driver->ctx->lightproc(so, sensor, acode, timeinsweep, timecode,
pulselength, lh);
return 0;
}
static int playback_poll(struct SurviveContext *ctx, void *_driver) {
SurvivePlaybackData *driver = _driver;
FILE *f = driver->playback_file;
if (f && !feof(f) && !ferror(f)) {
int i;
driver->lineno++;
char *line;
if (driver->next_time_us == 0) {
char *buffer;
size_t n = 0;
ssize_t r = getdelim(&line, &n, ' ', f);
if (r <= 0)
return 0;
if (sscanf(line, "%lf", &driver->next_time_us) != 1) {
free(line);
return 0;
}
free(line);
line = 0;
}
if (driver->next_time_us * driver->time_factor > timestamp_in_us())
return 0;
driver->next_time_us = 0;
char *buffer;
size_t n = 0;
ssize_t r = getline(&line, &n, f);
if (r <= 0)
return 0;
if ((line[0] != 'R' && line[0] != 'L' && line[0] != 'I') ||
line[1] != ' ')
return 0;
switch (line[0]) {
case 'L':
case 'R':
parse_and_run_lightcode(line, driver);
break;
case 'I':
parse_and_run_imu(line, driver);
break;
}
free(line);
} else {
if (f) {
fclose(driver->playback_file);
}
driver->playback_file = 0;
return -1;
}
return 0;
}
static int playback_close(struct SurviveContext *ctx, void *_driver) {
SurvivePlaybackData *driver = _driver;
if (driver->playback_file)
fclose(driver->playback_file);
driver->playback_file = 0;
return 0;
}
static int LoadConfig(SurvivePlaybackData *sv, SurviveObject *so) {
SurviveContext *ctx = sv->ctx;
char *ct0conf = 0;
char fname[100];
sprintf(fname, "%s/%s_config.json", sv->playback_dir, so->codename);
FILE *f = fopen(fname, "r");
if (f == 0 || feof(f) || ferror(f))
return 1;
fseek(f, 0, SEEK_END);
int len = ftell(f);
fseek(f, 0, SEEK_SET); // same as rewind(f);
ct0conf = malloc(len + 1);
int read = fread(ct0conf, len, 1, f);
fclose(f);
ct0conf[len] = 0;
printf("Loading config: %d\n", len);
return survive_load_htc_config_format(ct0conf, len, so);
}
int DriverRegPlayback(SurviveContext *ctx) {
const char *playback_dir =
config_read_str(ctx->global_config_values, "PlaybackDir", "");
if (strlen(playback_dir) == 0) {
return 0;
}
SurvivePlaybackData *sp = calloc(1, sizeof(SurvivePlaybackData));
sp->ctx = ctx;
sp->playback_dir = playback_dir;
sp->time_factor =
config_read_float(ctx->global_config_values, "PlaybackFactor", 1.);
printf("%s\n", playback_dir);
char playback_file[100];
sprintf(playback_file, "%s/events", playback_dir);
sp->playback_file = fopen(playback_file, "r");
if (sp->playback_file == 0) {
fprintf(stderr, "Could not open playback events file %s",
playback_file);
return -1;
}
SurviveObject *hmd = survive_create_hmd(ctx, "Playback", sp);
SurviveObject *wm0 = survive_create_wm0(ctx, "Playback", sp, 0);
SurviveObject *wm1 = survive_create_wm1(ctx, "Playback", sp, 0);
SurviveObject *tr0 = survive_create_tr0(ctx, "Playback", sp);
SurviveObject *ww0 = survive_create_ww0(ctx, "Playback", sp);
if (!LoadConfig(sp, hmd)) {
survive_add_object(ctx, hmd);
}
if (!LoadConfig(sp, wm0)) {
survive_add_object(ctx, wm0);
}
if (!LoadConfig(sp, wm1)) {
survive_add_object(ctx, wm1);
}
if (!LoadConfig(sp, tr0)) {
survive_add_object(ctx, tr0);
}
if (!LoadConfig(sp, ww0)) {
survive_add_object(ctx, ww0);
}
survive_add_driver(ctx, sp, playback_poll, playback_close, 0);
return 0;
fail_gracefully:
return -1;
}
REGISTER_LINKTIME(DriverRegPlayback);
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