2 * This file is part of the libsigrok project.
4 * Copyright (C) 2010-2012 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/>.
24 #include "libsigrok.h"
25 #include "libsigrok-internal.h"
28 #define LOG_PREFIX "output/hex"
30 SR_PRIV int init_hex(struct sr_output *o)
32 return init(o, DEFAULT_BPL_HEX, MODE_HEX);
35 SR_PRIV int data_hex(struct sr_output *o, const uint8_t *data_in,
36 uint64_t length_in, uint8_t **data_out,
40 unsigned int outsize, offset, p;
42 const uint8_t *sample;
46 max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
47 + ctx->samples_per_line / 2;
48 outsize = length_in / ctx->unitsize * ctx->num_enabled_channels
49 / ctx->samples_per_line * max_linelen + 512;
51 if (!(outbuf = g_try_malloc0(outsize + 1))) {
52 sr_err("%s: outbuf malloc failed", __func__);
58 /* The header is still here, this must be the first packet. */
59 strncpy((char *)outbuf, ctx->header, outsize);
65 for (offset = 0; offset <= length_in - ctx->unitsize;
66 offset += ctx->unitsize) {
67 sample = data_in + offset;
68 for (p = 0; p < ctx->num_enabled_channels; p++) {
69 ctx->linevalues[p] <<= 1;
70 if (sample[p / 8] & ((uint8_t) 1 << (p % 8)))
71 ctx->linevalues[p] |= 1;
72 sprintf((char *)ctx->linebuf + (p * ctx->linebuf_len) +
73 ctx->line_offset, "%.2x", ctx->linevalues[p]);
77 /* Add a space after every complete hex byte. */
78 if ((ctx->spl_cnt & 7) == 0) {
79 for (p = 0; p < ctx->num_enabled_channels; p++)
80 ctx->linebuf[p * ctx->linebuf_len +
81 ctx->line_offset + 2] = ' ';
82 ctx->line_offset += 3;
86 if (ctx->spl_cnt >= ctx->samples_per_line) {
87 flush_linebufs(ctx, outbuf);
88 ctx->line_offset = ctx->spl_cnt = 0;
93 *length_out = strlen((const char *)outbuf);
98 SR_PRIV struct sr_output_format output_text_hex = {
100 .description = "Hexadecimal",
101 .df_type = SR_DF_LOGIC,
105 .cleanup = text_cleanup,