Go to the documentation of this file.00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021 #include <stdlib.h>
00022 #include <string.h>
00023 #include <glib.h>
00024 #include "sigrok.h"
00025 #include "sigrok-internal.h"
00026 #include "text.h"
00027
00028 SR_PRIV int init_ascii(struct sr_output *o)
00029 {
00030 return init(o, DEFAULT_BPL_ASCII, MODE_ASCII);
00031 }
00032
00033 SR_PRIV int data_ascii(struct sr_output *o, const uint8_t *data_in,
00034 uint64_t length_in, uint8_t **data_out,
00035 uint64_t *length_out)
00036 {
00037 struct context *ctx;
00038 unsigned int outsize, offset, p;
00039 int max_linelen;
00040 uint64_t sample;
00041 uint8_t *outbuf;
00042
00043 ctx = o->internal;
00044 max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
00045 + ctx->samples_per_line / 8;
00046
00047
00048
00049
00050 outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
00051 * (ctx->num_enabled_probes * max_linelen);
00052
00053 if (!(outbuf = g_try_malloc0(outsize + 1))) {
00054 sr_err("ascii out: %s: outbuf malloc failed", __func__);
00055 return SR_ERR_MALLOC;
00056 }
00057
00058 outbuf[0] = '\0';
00059 if (ctx->header) {
00060
00061 strncpy((char *)outbuf, ctx->header, outsize);
00062 g_free(ctx->header);
00063 ctx->header = NULL;
00064 }
00065
00066 if (length_in >= ctx->unitsize) {
00067 for (offset = 0; offset <= length_in - ctx->unitsize;
00068 offset += ctx->unitsize) {
00069 memcpy(&sample, data_in + offset, ctx->unitsize);
00070
00071 char tmpval[ctx->num_enabled_probes];
00072
00073 for (p = 0; p < ctx->num_enabled_probes; p++) {
00074 uint64_t curbit = (sample & ((uint64_t) 1 << p));
00075 uint64_t prevbit = (ctx->prevsample &
00076 ((uint64_t) 1 << p));
00077
00078 if (curbit < prevbit && ctx->line_offset > 0) {
00079 ctx->linebuf[p * ctx->linebuf_len +
00080 ctx->line_offset-1] = '\\';
00081 }
00082
00083 if (curbit > prevbit) {
00084 tmpval[p] = '/';
00085 } else {
00086 if (curbit)
00087 tmpval[p] = '"';
00088 else
00089 tmpval[p] = '.';
00090 }
00091 }
00092
00093
00094 if (ctx->spl_cnt >= ctx->samples_per_line) {
00095 flush_linebufs(ctx, outbuf);
00096 ctx->line_offset = ctx->spl_cnt = 0;
00097 ctx->mark_trigger = -1;
00098 }
00099
00100 for (p = 0; p < ctx->num_enabled_probes; p++) {
00101 ctx->linebuf[p * ctx->linebuf_len +
00102 ctx->line_offset] = tmpval[p];
00103 }
00104
00105 ctx->line_offset++;
00106 ctx->spl_cnt++;
00107
00108 ctx->prevsample = sample;
00109 }
00110 } else {
00111 sr_info("ascii out: short buffer (length_in=%" PRIu64 ")",
00112 length_in);
00113 }
00114
00115 *data_out = outbuf;
00116 *length_out = strlen((const char *)outbuf);
00117
00118 return SR_OK;
00119 }
00120
00121 SR_PRIV struct sr_output_format output_text_ascii = {
00122 .id = "ascii",
00123 .description = "ASCII",
00124 .df_type = SR_DF_LOGIC,
00125 .init = init_ascii,
00126 .data = data_ascii,
00127 .event = event,
00128 };