From: Bert Vermeulen <redacted>
Date: Sun, 15 Jan 2012 22:20:39 +0000 (+0100)
Subject: srd: PDs now get a logic feed with sample numbers, not time/duration
X-Git-Tag: libsigrokdecode-0.1.0~130
X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=commitdiff_plain;h=86528298fa2abfe825d6763b806095972e8bd8f4;ds=inline

srd: PDs now get a logic feed with sample numbers, not time/duration
---

diff --git a/controller.c b/controller.c
index 963345c..9a663ff 100644
--- a/controller.c
+++ b/controller.c
@@ -283,11 +283,12 @@ int srd_instance_start(struct srd_decoder_instance *di, PyObject *args)
  *
  * @return SRD_OK upon success, a (negative) error code otherwise.
  */
-int srd_instance_decode(uint64_t timeoffset, uint64_t duration,
+int srd_instance_decode(uint64_t start_samplenum,
 		struct srd_decoder_instance *di, uint8_t *inbuf, uint64_t inbuflen)
 {
 	PyObject *py_instance, *py_res;
 	srd_logic *logic;
+	uint64_t end_samplenum;
 
 	/* Return an error upon unusable input. */
 	if (di == NULL)
@@ -304,14 +305,16 @@ int srd_instance_decode(uint64_t timeoffset, uint64_t duration,
 	logic = PyObject_New(srd_logic, &srd_logic_type);
 	Py_INCREF(logic);
 	logic->di = di;
+	logic->start_samplenum = start_samplenum;
 	logic->itercnt = 0;
 	logic->inbuf = inbuf;
 	logic->inbuflen = inbuflen;
 	logic->sample = PyList_New(2);
 	Py_INCREF(logic->sample);
 
+	end_samplenum = start_samplenum + inbuflen / di->unitsize;
 	if (!(py_res = PyObject_CallMethod(py_instance, "decode",
-			"KKO", timeoffset, duration, logic))) {
+			"KKO", logic->start_samplenum, end_samplenum, logic))) {
 		if (PyErr_Occurred())
 			PyErr_Print(); /* Returns void. */
 
@@ -360,14 +363,13 @@ int srd_session_start(int num_probes, int unitsize, uint64_t samplerate)
 }
 
 /* Feed logic samples to decoder session. */
-int srd_session_feed(uint64_t timeoffset, uint64_t duration, uint8_t *inbuf,
-		uint64_t inbuflen)
+int srd_session_feed(uint64_t start_samplenum, uint8_t *inbuf, uint64_t inbuflen)
 {
 	GSList *d;
 	int ret;
 
 	for (d = di_list; d; d = d->next) {
-		if ((ret = srd_instance_decode(timeoffset, duration, d->data, inbuf,
+		if ((ret = srd_instance_decode(start_samplenum, d->data, inbuf,
 				inbuflen)) != SRD_OK)
 			return ret;
 	}
diff --git a/sigrokdecode.h b/sigrokdecode.h
index 863608b..1d8a79b 100644
--- a/sigrokdecode.h
+++ b/sigrokdecode.h
@@ -151,6 +151,7 @@ typedef struct {
 typedef struct {
 	PyObject_HEAD
 	struct srd_decoder_instance *di;
+	uint64_t start_samplenum;
 	unsigned int itercnt;
 	uint8_t *inbuf;
 	uint64_t inbuflen;
@@ -170,13 +171,11 @@ int srd_instance_set_probe(struct srd_decoder_instance *di,
 				const char *probename, int num);
 struct srd_decoder_instance *srd_instance_find(char *instance_id);
 int srd_instance_start(struct srd_decoder_instance *di, PyObject *args);
-int srd_instance_decode(uint64_t timeoffset, uint64_t duration,
+int srd_instance_decode(uint64_t start_samplenum,
 		struct srd_decoder_instance *dec, uint8_t *inbuf, uint64_t inbuflen);
 int srd_session_start(int num_probes, int unitsize, uint64_t samplerate);
-int srd_session_feed(uint64_t timeoffset, uint64_t duration, uint8_t *inbuf,
-		uint64_t inbuflen);
-int pd_add(struct srd_decoder_instance *di, int output_type,
-		char *output_id);
+int srd_session_feed(uint64_t start_samplenum, uint8_t *inbuf, uint64_t inbuflen);
+int pd_add(struct srd_decoder_instance *di, int output_type, char *output_id);
 struct srd_decoder_instance *get_di_by_decobject(void *decobject);
 int srd_register_callback(int output_type, void *cb);
 void *srd_find_callback(int output_type);
diff --git a/type_decoder.c b/type_decoder.c
index 34b414e..e1e6796 100644
--- a/type_decoder.c
+++ b/type_decoder.c
@@ -177,7 +177,7 @@ static PyObject *Decoder_add(PyObject *self, PyObject *args)
 
 static PyMethodDef Decoder_methods[] = {
 	{"put", Decoder_put, METH_VARARGS,
-	 "Accepts a dictionary with the following keys: time, duration, data"},
+	 "Accepts a dictionary with the following keys: startsample, endsample, data"},
 	{"add", Decoder_add, METH_VARARGS, "Create a new output stream"},
 	{NULL, NULL, 0, NULL}
 };
diff --git a/type_logic.c b/type_logic.c
index 2f79234..851a42e 100644
--- a/type_logic.c
+++ b/type_logic.c
@@ -56,16 +56,14 @@ PyObject *srd_logic_iternext(PyObject *self)
 		sample >>= 1;
 	}
 
-	/* TODO: samplenum should be in the inbuf feed, instead of time/duration.
-	 * fake it for now...
-	 */
 	/* Prepare the next samplenum/sample list in this iteration. */
-	py_samplenum = PyLong_FromUnsignedLongLong(logic->itercnt++);
+	py_samplenum = PyLong_FromUnsignedLongLong(logic->start_samplenum + logic->itercnt);
 	PyList_SetItem(logic->sample, 0, py_samplenum);
 	py_samples = PyBytes_FromStringAndSize((const char *)probe_samples,
 			logic->di->num_probes);
 	PyList_SetItem(logic->sample, 1, py_samples);
 	Py_INCREF(logic->sample);
+	logic->itercnt++;
 
 	return logic->sample;
 }