X-Git-Url: https://sigrok.org/gitweb/?p=libsigrok.git;a=blobdiff_plain;f=output%2Foutput.c;h=4cf78f60a8b201d2ba6c60a9d6e50702d750ba5e;hp=457a80c3a886b18cb398cfdef1523a233ccc97bd;hb=43cd4637285833706f8a404ca027bcf0ee75b9ae;hpb=7b870c38e3040fec1165a623ae3986e4fb342218

diff --git a/output/output.c b/output/output.c
index 457a80c3..4cf78f60 100644
--- a/output/output.c
+++ b/output/output.c
@@ -1,5 +1,5 @@
 /*
- * This file is part of the sigrok project.
+ * This file is part of the libsigrok project.
  *
  * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
  *
@@ -20,48 +20,101 @@
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
 
+/**
+ * @file
+ *
+ * Output file/data format handling.
+ */
+
 /**
  * @defgroup grp_output Output formats
  *
  * Output file/data format handling.
  *
+ * libsigrok supports several output (file) formats, e.g. binary, VCD,
+ * gnuplot, and so on. It provides an output API that frontends can use.
+ * New output formats can be added/implemented in libsigrok without having
+ * to change the frontends at all.
+ *
+ * All output modules are fed data in a stream. Devices that can stream data
+ * into libsigrok, instead of storing and then transferring the whole buffer,
+ * can thus generate output live.
+ *
+ * Output modules generate a newly allocated GString. The caller is then
+ * expected to free this with g_string_free() when finished with it.
+ *
  * @{
  */
 
 /** @cond PRIVATE */
-extern SR_PRIV struct sr_output_format output_text_bits;
-extern SR_PRIV struct sr_output_format output_text_hex;
-extern SR_PRIV struct sr_output_format output_text_ascii;
+extern SR_PRIV struct sr_output_format output_bits;
+extern SR_PRIV struct sr_output_format output_hex;
+extern SR_PRIV struct sr_output_format output_ascii;
 extern SR_PRIV struct sr_output_format output_binary;
 extern SR_PRIV struct sr_output_format output_vcd;
 extern SR_PRIV struct sr_output_format output_ols;
 extern SR_PRIV struct sr_output_format output_gnuplot;
 extern SR_PRIV struct sr_output_format output_chronovu_la8;
 extern SR_PRIV struct sr_output_format output_csv;
-extern SR_PRIV struct sr_output_format output_float;
 extern SR_PRIV struct sr_output_format output_analog;
-/* extern SR_PRIV struct sr_output_format output_analog_gnuplot; */
 /* @endcond */
 
 static struct sr_output_format *output_module_list[] = {
-	&output_text_bits,
-	&output_text_hex,
-	&output_text_ascii,
+	&output_ascii,
 	&output_binary,
-	&output_vcd,
-	&output_ols,
+	&output_bits,
+	&output_csv,
 	&output_gnuplot,
+	&output_hex,
+	&output_ols,
+	&output_vcd,
 	&output_chronovu_la8,
-	&output_csv,
-	&output_float,
 	&output_analog,
-	/* &output_analog_gnuplot, */
 	NULL,
 };
 
+/** @since 0.1.0 */
 SR_API struct sr_output_format **sr_output_list(void)
 {
 	return output_module_list;
 }
 
+/** @since 0.3.0 */
+SR_API struct sr_output *sr_output_new(struct sr_output_format *of,
+		GHashTable *params, const struct sr_dev_inst *sdi)
+{
+	struct sr_output *o;
+
+	o = g_malloc(sizeof(struct sr_output));
+	o->format = of;
+	o->sdi = sdi;
+	o->params = params;
+	if (o->format->init && o->format->init(o) != SR_OK) {
+		g_free(o);
+		o = NULL;
+	}
+
+	return o;
+}
+
+/** @since 0.3.0 */
+SR_API int sr_output_send(struct sr_output *o,
+		const struct sr_datafeed_packet *packet, GString **out)
+{
+	return o->format->receive(o, packet, out);
+}
+
+/** @since 0.3.0 */
+SR_API int sr_output_free(struct sr_output *o)
+{
+	int ret;
+
+	ret = SR_OK;
+	if (o->format->cleanup)
+		ret = o->format->cleanup(o);
+	g_free(o);
+
+	return ret;
+}
+
 /** @} */