const char *gnuplot_header = "\
# Sample data in space-separated columns format usable by gnuplot\n\
#\n\
-# Generated by: %s on %s\n%s\
+# Generated by: %s on %s%s\
# Timescale: %d %s\n\
-# Column assignment:\n%s\n";
+#\n\
+# Column\tProbe\n\
+# -------------------------------------\
+----------------------------------------\n\
+# 0\t\tSample counter (for internal gnuplot purposes)\n%s\n";
const char *gnuplot_header_comment = "\
# Comment: Acquisition with %d/%d probes at %s\n";
int b, num_probes;
char *c, *samplerate_s;
char wbuf[1000], comment[128];
+ time_t t;
if (!(ctx = calloc(1, sizeof(struct context))))
return SIGROK_ERR_MALLOC;
wbuf[0] = '\0';
for (i = 0; i < ctx->num_enabled_probes; i++) {
c = (char *)&wbuf + strlen((char *)&wbuf);
- sprintf(c, "# Column %d: channel %s\n", i, ctx->probelist[i]);
+ sprintf(c, "# %d\t\t%s\n", i + 1, ctx->probelist[i]);
}
/* TODO: date: File or signals? Make y/n configurable. */
/* TODO: Timescale */
+ t = time(NULL);
b = snprintf(ctx->header, MAX_HEADER_LEN, gnuplot_header,
- PACKAGE_STRING, "TODO", comment, 1, "ns", (char *)&wbuf);
+ PACKAGE_STRING, ctime(&t), comment, 1, "ns",
+ (char *)&wbuf);
/* TODO: Handle snprintf errors. */
uint64_t *length_out)
{
struct context *ctx;
- char *outbuf;
- int outlen = 1; /* FIXME */
ctx = o->internal;
switch (event_type) {
/* TODO */
break;
case DF_END:
- outbuf = calloc(1, 1); /* FIXME */
- if (outbuf == NULL)
- return SIGROK_ERR_MALLOC;
- *data_out = outbuf;
- *length_out = outlen;
+ *data_out = NULL;
+ *length_out = 0;
free(o->internal);
o->internal = NULL;
break;
{
struct context *ctx;
unsigned int i, outsize, p, curbit;
- uint64_t sample, count = 0;
+ uint64_t sample;
+ static uint64_t samplecount = 0;
char *outbuf, *c;
ctx = o->internal;
outsize = strlen(ctx->header);
/* FIXME: Use realloc(). */
- if (!(outbuf = calloc(1, outsize + 1 + 10000)))
+ if (!(outbuf = calloc(1, outsize + 1 + 1000000)))
return SIGROK_ERR_MALLOC; /* TODO: free()? What to free? */
outbuf[0] = '\0';
/* The first column is a counter (needed for gnuplot). */
c = outbuf + strlen(outbuf);
- sprintf(c, "%" PRIu64 "\t\t", count++);
+ sprintf(c, "%" PRIu64 "\t\t", samplecount++);
/* The next columns are the values of all channels. */
for (p = 0; p < ctx->num_enabled_probes; p++) {
- curbit = (sample & ((uint64_t) (1 << p))) != 0;
+ curbit = (sample & ((uint64_t) (1 << p))) >> p;
c = outbuf + strlen(outbuf);
sprintf(c, "%d ", curbit);
}