X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=output%2Fgnuplot.c;h=631fefdaa3535e5ca7283138c1f22486bf54e203;hb=HEAD;hp=7c033a91c3136f9016c7355605b5c129121c6a1d;hpb=90f680ff006e5ae2fd4935bd885a14bd9927fd99;p=libsigrok.git diff --git a/output/gnuplot.c b/output/gnuplot.c deleted file mode 100644 index 7c033a91..00000000 --- a/output/gnuplot.c +++ /dev/null @@ -1,282 +0,0 @@ -/* - * This file is part of the libsigrok project. - * - * Copyright (C) 2010 Uwe Hermann - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include -#include -#include -#include "config.h" /* Needed for PACKAGE_STRING and others. */ -#include "libsigrok.h" -#include "libsigrok-internal.h" - -/* Message logging helpers with driver-specific prefix string. */ -#define DRIVER_LOG_DOMAIN "output/gnuplot: " -#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args) -#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args) -#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args) -#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args) -#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args) -#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args) - -struct context { - unsigned int num_enabled_probes; - unsigned int unitsize; - char *header; - uint8_t *old_sample; -}; - -static const char *gnuplot_header = "\ -# Sample data in space-separated columns format usable by gnuplot\n\ -#\n\ -# Generated by: %s on %s%s\ -# Period: %s\n\ -#\n\ -# Column\tProbe\n\ -# -------------------------------------\ -----------------------------------------\n\ -# 0\t\tSample counter (for internal gnuplot purposes)\n%s\n"; - -static const char *gnuplot_header_comment = "\ -# Comment: Acquisition with %d/%d probes at %s\n"; - -static int init(struct sr_output *o) -{ - struct context *ctx; - struct sr_probe *probe; - GSList *l; - GVariant *gvar; - uint64_t samplerate; - unsigned int i; - int num_probes; - char *c, *frequency_s; - char wbuf[1000], comment[128]; - time_t t; - - if (!o) { - sr_err("%s: o was NULL", __func__); - return SR_ERR_ARG; - } - - if (!o->sdi) { - sr_err("%s: o->sdi was NULL", __func__); - return SR_ERR_ARG; - } - - if (!o->sdi->driver) { - sr_err("%s: o->sdi->driver was NULL", __func__); - return SR_ERR_ARG; - } - - if (!(ctx = g_try_malloc0(sizeof(struct context)))) { - sr_err("%s: ctx malloc failed", __func__); - return SR_ERR_MALLOC; - } - - o->internal = ctx; - ctx->num_enabled_probes = 0; - for (l = o->sdi->probes; l; l = l->next) { - probe = l->data; - if (probe->enabled) - ctx->num_enabled_probes++; - } - ctx->unitsize = (ctx->num_enabled_probes + 7) / 8; - - num_probes = g_slist_length(o->sdi->probes); - comment[0] = '\0'; - samplerate = 0; - if (sr_dev_has_option(o->sdi, SR_CONF_SAMPLERATE)) { - o->sdi->driver->config_get(SR_CONF_SAMPLERATE, &gvar, o->sdi); - samplerate = g_variant_get_uint64(gvar); - if (!(frequency_s = sr_samplerate_string(samplerate))) { - sr_err("%s: sr_samplerate_string failed", __func__); - g_free(ctx); - g_variant_unref(gvar); - return SR_ERR; - } - snprintf(comment, 127, gnuplot_header_comment, - ctx->num_enabled_probes, num_probes, frequency_s); - g_free(frequency_s); - g_variant_unref(gvar); - } - - /* Columns / channels */ - wbuf[0] = '\0'; - for (i = 0, l = o->sdi->probes; l; l = l->next, i++) { - probe = l->data; - if (!probe->enabled) - continue; - c = (char *)&wbuf + strlen((const char *)&wbuf); - sprintf(c, "# %d\t\t%s\n", i + 1, probe->name); - } - - if (!(frequency_s = sr_period_string(samplerate))) { - sr_err("%s: sr_period_string failed", __func__); - g_free(ctx); - return SR_ERR; - } - - t = time(NULL); - ctx->header = g_strdup_printf(gnuplot_header, PACKAGE_STRING, - ctime(&t), comment, frequency_s, (char *)&wbuf); - g_free(frequency_s); - - if (!(ctx->old_sample = g_try_malloc0(ctx->unitsize))) { - sr_err("%s: ctx->old_sample malloc failed", __func__); - g_free(ctx->header); - g_free(ctx); - return SR_ERR_MALLOC; - } - - return 0; -} - -static int event(struct sr_output *o, int event_type, uint8_t **data_out, - uint64_t *length_out) -{ - if (!o) { - sr_err("%s: o was NULL", __func__); - return SR_ERR_ARG; - } - - if (!data_out) { - sr_err("%s: data_out was NULL", __func__); - return SR_ERR_ARG; - } - - if (!length_out) { - sr_err("%s: length_out was NULL", __func__); - return SR_ERR_ARG; - } - - switch (event_type) { - case SR_DF_TRIGGER: - /* TODO: Can a trigger mark be in a gnuplot data file? */ - break; - case SR_DF_END: - g_free(o->internal); - o->internal = NULL; - break; - default: - sr_err("%s: unsupported event type: %d", __func__, event_type); - break; - } - - *data_out = NULL; - *length_out = 0; - - return SR_OK; -} - -static int data(struct sr_output *o, const uint8_t *data_in, - uint64_t length_in, uint8_t **data_out, uint64_t *length_out) -{ - struct context *ctx; - unsigned int max_linelen, outsize, p, curbit, i; - const uint8_t *sample; - static uint64_t samplecount = 0; - uint8_t *outbuf, *c; - - if (!o) { - sr_err("%s: o was NULL", __func__); - return SR_ERR_ARG; - } - - if (!o->internal) { - sr_err("%s: o->internal was NULL", __func__); - return SR_ERR_ARG; - } - - if (!data_in) { - sr_err("%s: data_in was NULL", __func__); - return SR_ERR_ARG; - } - - if (!data_out) { - sr_err("%s: data_out was NULL", __func__); - return SR_ERR_ARG; - } - - if (!length_out) { - sr_err("%s: length_out was NULL", __func__); - return SR_ERR_ARG; - } - - ctx = o->internal; - max_linelen = 16 + ctx->num_enabled_probes * 2; - outsize = length_in / ctx->unitsize * max_linelen; - if (ctx->header) - outsize += strlen(ctx->header); - - if (!(outbuf = g_try_malloc0(outsize))) { - sr_err("%s: outbuf malloc failed", __func__); - return SR_ERR_MALLOC; - } - - outbuf[0] = '\0'; - if (ctx->header) { - /* The header is still here, this must be the first packet. */ - strncpy((char *)outbuf, ctx->header, outsize); - g_free(ctx->header); - ctx->header = NULL; - } - - for (i = 0; i <= length_in - ctx->unitsize; i += ctx->unitsize) { - - sample = data_in + i; - - /* - * Don't output the same samples multiple times. However, make - * sure to output at least the first and last sample. - */ - if (samplecount++ != 0 && - !memcmp(sample, ctx->old_sample, ctx->unitsize)) { - if (i != (length_in - ctx->unitsize)) - continue; - } - memcpy(ctx->old_sample, sample, ctx->unitsize); - - /* The first column is a counter (needed for gnuplot). */ - c = outbuf + strlen((const char *)outbuf); - sprintf((char *)c, "%" PRIu64 "\t", samplecount++); - - /* The next columns are the values of all channels. */ - for (p = 0; p < ctx->num_enabled_probes; p++) { - curbit = (sample[p / 8] & ((uint8_t) (1 << (p % 8)))) >> (p % 8); - c = outbuf + strlen((const char *)outbuf); - sprintf((char *)c, "%d ", curbit); - } - - c = outbuf + strlen((const char *)outbuf); - sprintf((char *)c, "\n"); - } - - *data_out = outbuf; - *length_out = strlen((const char *)outbuf); - - return SR_OK; -} - -SR_PRIV struct sr_output_format output_gnuplot = { - .id = "gnuplot", - .description = "Gnuplot", - .df_type = SR_DF_LOGIC, - .init = init, - .data = data, - .event = event, -};