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97554432 BV |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2011 Bert Vermeulen <bert@biot.com> | |
5 | * Copyright (C) 2011 HÃ¥vard Espeland <gus@ping.uio.no> | |
6 | * | |
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. | |
11 | * | |
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. | |
16 | * | |
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/>. | |
19 | */ | |
20 | ||
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <glib.h> | |
24 | #include <sigrok.h> | |
25 | #include "text.h" | |
26 | ||
f50f3f40 | 27 | int init_ascii(struct sr_output *o) |
97554432 BV |
28 | { |
29 | return init(o, DEFAULT_BPL_ASCII, MODE_ASCII); | |
30 | } | |
31 | ||
54ac5277 UH |
32 | int data_ascii(struct sr_output *o, const char *data_in, uint64_t length_in, |
33 | char **data_out, uint64_t *length_out) | |
97554432 BV |
34 | { |
35 | struct context *ctx; | |
36 | unsigned int outsize, offset, p; | |
37 | int max_linelen; | |
38 | uint64_t sample; | |
39 | char *outbuf; | |
40 | ||
41 | ctx = o->internal; | |
9688b443 | 42 | max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line |
97554432 BV |
43 | + ctx->samples_per_line / 8; |
44 | /* | |
45 | * Calculate space needed for probes. Set aside 512 bytes for | |
46 | * extra output, e.g. trigger. | |
47 | */ | |
48 | outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line) | |
49 | * (ctx->num_enabled_probes * max_linelen); | |
50 | ||
51 | if (!(outbuf = calloc(1, outsize + 1))) | |
e46b8fb1 | 52 | return SR_ERR_MALLOC; |
97554432 BV |
53 | |
54 | outbuf[0] = '\0'; | |
55 | if (ctx->header) { | |
56 | /* The header is still here, this must be the first packet. */ | |
57 | strncpy(outbuf, ctx->header, outsize); | |
58 | free(ctx->header); | |
59 | ctx->header = NULL; | |
60 | } | |
61 | ||
62 | if (length_in >= ctx->unitsize) { | |
63 | for (offset = 0; offset <= length_in - ctx->unitsize; | |
64 | offset += ctx->unitsize) { | |
65 | memcpy(&sample, data_in + offset, ctx->unitsize); | |
66 | ||
67 | char tmpval[ctx->num_enabled_probes]; | |
68 | ||
69 | for (p = 0; p < ctx->num_enabled_probes; p++) { | |
70 | uint64_t curbit = (sample & ((uint64_t) 1 << p)); | |
71 | uint64_t prevbit = (ctx->prevsample & | |
72 | ((uint64_t) 1 << p)); | |
73 | ||
74 | if (curbit < prevbit && ctx->line_offset > 0) { | |
75 | ctx->linebuf[p * ctx->linebuf_len + | |
76 | ctx->line_offset-1] = '\\'; | |
77 | } | |
78 | ||
79 | if (curbit > prevbit) { | |
80 | tmpval[p] = '/'; | |
81 | } else { | |
82 | if (curbit) | |
83 | tmpval[p] = '"'; | |
84 | else | |
85 | tmpval[p] = '.'; | |
86 | } | |
87 | } | |
88 | ||
89 | /* End of line. */ | |
90 | if (ctx->spl_cnt >= ctx->samples_per_line) { | |
91 | flush_linebufs(ctx, outbuf); | |
92 | ctx->line_offset = ctx->spl_cnt = 0; | |
93 | ctx->mark_trigger = -1; | |
94 | } | |
95 | ||
96 | for (p = 0; p < ctx->num_enabled_probes; p++) { | |
97 | ctx->linebuf[p * ctx->linebuf_len + | |
98 | ctx->line_offset] = tmpval[p]; | |
99 | } | |
100 | ||
101 | ctx->line_offset++; | |
102 | ctx->spl_cnt++; | |
103 | ||
104 | ctx->prevsample = sample; | |
105 | } | |
106 | } else { | |
107 | g_message("short buffer (length_in=%" PRIu64 ")", length_in); | |
108 | } | |
109 | ||
110 | *data_out = outbuf; | |
111 | *length_out = strlen(outbuf); | |
112 | ||
e46b8fb1 | 113 | return SR_OK; |
97554432 BV |
114 | } |
115 | ||
f50f3f40 | 116 | struct sr_output_format output_text_ascii = { |
cdb3573c | 117 | .id = "ascii", |
d494a4aa UH |
118 | .description = "ASCII (takes argument, default 74)", |
119 | .df_type = SR_DF_LOGIC, | |
120 | .init = init_ascii, | |
121 | .data = data_ascii, | |
122 | .event = event, | |
97554432 | 123 | }; |