/*
- * 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>
*
*
* 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;
+}
+
/** @} */