Add warning message when buffer full @ LA RLE mode

DSView/pv/mainwindow.cpp

@@ -486,6 +486,25 @@ void MainWindow::capture_state_changed(int state)
         _sampling_bar->enable_toggle(state != SigSession::Running);
         _trig_bar->enable_toggle(state != SigSession::Running);
         _measure_dock->widget()->setEnabled(state != SigSession::Running);
+        if (_session.get_device()->dev_inst()->mode == LOGIC &&
+            state == SigSession::Stopped) {
+            GVariant *gvar = _session.get_device()->get_config(NULL, NULL, SR_CONF_RLE);
+            if (gvar != NULL) {
+                bool rle = g_variant_get_boolean(gvar);
+                g_variant_unref(gvar);
+                if (rle) {
+                    gvar = _session.get_device()->get_config(NULL, NULL, SR_CONF_ACTUAL_SAMPLES);
+                    if (gvar != NULL) {
+                        uint64_t actual_samples = g_variant_get_uint64(gvar);
+                        g_variant_unref(gvar);
+                        if (actual_samples != _session.get_device()->get_sample_limit()) {
+                            show_session_error(tr("RLE Mode Warning"),
+                                               tr("Hardware buffer is full!\nActually received samples is less than setted sample depth!"));
+                        }
+                    }
+                }
+            }
+        }
 #ifdef TEST_MODE
         if (state == SigSession::Stopped) {
             test_timer.start(100);

libsigrok4DSL/hardware/DSL/dslogic.c

@@ -1196,6 +1196,12 @@ static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
         devc = sdi->priv;
         *data = g_variant_new_uint64(devc->limit_samples);
         break;
+    case SR_CONF_ACTUAL_SAMPLES:
+        if (!sdi)
+            return SR_ERR;
+        devc = sdi->priv;
+        *data = g_variant_new_uint64(devc->actual_samples);
+        break;
     case SR_CONF_SAMPLERATE:
 		if (!sdi)
             return SR_ERR;
@@ -2530,6 +2536,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
     devc->status = DSL_INIT;
     devc->num_transfers = 0;
     devc->submitted_transfers = 0;
+    devc->actual_samples = devc->limit_samples;
 
 	/* Configures devc->trigger_* and devc->sample_wide */
     if (configure_probes(sdi) != SR_OK) {

libsigrok4DSL/hwdriver.c

@@ -59,6 +59,8 @@ static struct sr_config_info sr_config_info_data[] = {
         "Sample rate", "Sample rate", NULL},
     {SR_CONF_LIMIT_SAMPLES, SR_T_UINT64, "samplecount",
         "Sample count", "Sample count", NULL},
+    {SR_CONF_ACTUAL_SAMPLES, SR_T_UINT64, "samplecount",
+        "Sample count", "Sample count", NULL},
     {SR_CONF_CLOCK_TYPE, SR_T_BOOL, "clocktype",
         "Using External Clock", "Using External Clock", NULL},
     {SR_CONF_CLOCK_EDGE, SR_T_BOOL, "clockedge",

libsigrok4DSL/libsigrok.h

@@ -856,6 +856,11 @@ enum {
 	 */
 	SR_CONF_LIMIT_SAMPLES,
 
+    /**
+     * The actual sample count received
+     */
+    SR_CONF_ACTUAL_SAMPLES,
+
 	/**
 	 * The device supports setting a frame limit (how many
 	 * frames should be acquired).