2 * This file is part of the sigrok project.
4 * Copyright (C) 2011 Bert Vermeulen <bert@biot.com>
5 * Copyright (C) 2011 HÃ¥vard Espeland <gus@ping.uio.no>
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 #include <sigrok-internal.h>
28 int init_ascii(struct sr_output *o)
30 return init(o, DEFAULT_BPL_ASCII, MODE_ASCII);
33 int data_ascii(struct sr_output *o, const char *data_in, uint64_t length_in,
34 char **data_out, uint64_t *length_out)
37 unsigned int outsize, offset, p;
43 max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
44 + ctx->samples_per_line / 8;
46 * Calculate space needed for probes. Set aside 512 bytes for
47 * extra output, e.g. trigger.
49 outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
50 * (ctx->num_enabled_probes * max_linelen);
52 if (!(outbuf = calloc(1, outsize + 1)))
57 /* The header is still here, this must be the first packet. */
58 strncpy(outbuf, ctx->header, outsize);
63 if (length_in >= ctx->unitsize) {
64 for (offset = 0; offset <= length_in - ctx->unitsize;
65 offset += ctx->unitsize) {
66 memcpy(&sample, data_in + offset, ctx->unitsize);
68 char tmpval[ctx->num_enabled_probes];
70 for (p = 0; p < ctx->num_enabled_probes; p++) {
71 uint64_t curbit = (sample & ((uint64_t) 1 << p));
72 uint64_t prevbit = (ctx->prevsample &
75 if (curbit < prevbit && ctx->line_offset > 0) {
76 ctx->linebuf[p * ctx->linebuf_len +
77 ctx->line_offset-1] = '\\';
80 if (curbit > prevbit) {
91 if (ctx->spl_cnt >= ctx->samples_per_line) {
92 flush_linebufs(ctx, outbuf);
93 ctx->line_offset = ctx->spl_cnt = 0;
94 ctx->mark_trigger = -1;
97 for (p = 0; p < ctx->num_enabled_probes; p++) {
98 ctx->linebuf[p * ctx->linebuf_len +
99 ctx->line_offset] = tmpval[p];
105 ctx->prevsample = sample;
108 sr_info("short buffer (length_in=%" PRIu64 ")", length_in);
112 *length_out = strlen(outbuf);
117 struct sr_output_format output_text_ascii = {
119 .description = "ASCII (takes argument, default 74)",
120 .df_type = SR_DF_LOGIC,