rename project for upgrade

libsigrok4DSL/output/text/bits.c

@@ -0,0 +1,119 @@
+/*
+ * This file is part of the libsigrok project.
+ *
+ * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2011 Håvard Espeland <gus@ping.uio.no>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <glib.h>
+#include "libsigrok.h"
+#include "libsigrok-internal.h"
+#include "text.h"
+
+/* Message logging helpers with subsystem-specific prefix string. */
+#define LOG_PREFIX "output/bits: "
+#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
+#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
+#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
+#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
+#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
+#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
+
+SR_PRIV int init_bits(struct sr_output *o)
+{
+	return init(o, DEFAULT_BPL_BITS, MODE_BITS);
+}
+
+SR_PRIV int data_bits(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 outsize, offset, p;
+	int max_linelen;
+	const uint8_t *sample;
+	uint8_t *outbuf, c;
+
+	ctx = o->internal;
+	max_linelen = SR_MAX_PROBENAME_LEN + 3 + ctx->samples_per_line
+			+ ctx->samples_per_line / 8;
+        /*
+         * Calculate space needed for probes. Set aside 512 bytes for
+         * extra output, e.g. trigger.
+         */
+	outsize = 512 + (1 + (length_in / ctx->unitsize) / ctx->samples_per_line)
+            * (ctx->num_enabled_probes * max_linelen);
+
+	if (!(outbuf = g_try_malloc0(outsize + 1))) {
+		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;
+	}
+
+	if (length_in >= ctx->unitsize) {
+		for (offset = 0; offset <= length_in - ctx->unitsize;
+		     offset += ctx->unitsize) {
+			sample = data_in + offset;
+			for (p = 0; p < ctx->num_enabled_probes; p++) {
+				c = (sample[p / 8] & ((uint8_t) 1 << (p % 8))) ? '1' : '0';
+				ctx->linebuf[p * ctx->linebuf_len +
+					     ctx->line_offset] = c;
+			}
+			ctx->line_offset++;
+			ctx->spl_cnt++;
+
+			/* Add a space every 8th bit. */
+			if ((ctx->spl_cnt & 7) == 0) {
+				for (p = 0; p < ctx->num_enabled_probes; p++)
+					ctx->linebuf[p * ctx->linebuf_len +
+						     ctx->line_offset] = ' ';
+				ctx->line_offset++;
+			}
+
+			/* End of line. */
+			if (ctx->spl_cnt >= ctx->samples_per_line) {
+				flush_linebufs(ctx, outbuf);
+				ctx->line_offset = ctx->spl_cnt = 0;
+				ctx->mark_trigger = -1;
+			}
+		}
+	} else {
+		sr_info("Short buffer (length_in=%" PRIu64 ").", length_in);
+	}
+
+	*data_out = outbuf;
+	*length_out = strlen((const char *)outbuf);
+
+	return SR_OK;
+}
+
+SR_PRIV struct sr_output_format output_text_bits = {
+	.id = "bits",
+	.description = "Bits",
+	.df_type = SR_DF_LOGIC,
+	.init = init_bits,
+	.data = data_bits,
+	.event = event,
+};