Replace host provided features that match Suil implemented features, rather

than passing UIs duplicate features.


git-svn-id: http://svn.drobilla.net/lad/trunk/suil@4599 a436a847-0d15-0410-975c-d299462d15a1

4 files changed, 27 insertions, 17 deletions

diff --git a/src/instance.c b/src/instance.c
index ca15ffe..5b53328 100644
--- a/src/instance.c
+++ b/src/instance.c
@@ -193,30 +193,31 @@ suil_instance_new(SuilHost*                 host,
 	instance->features[0] = NULL;
 
 	// Copy user provided features
-	unsigned n_features = 0;
-	for (; features && features[n_features]; ++n_features) {
-		const LV2_Feature* f = features[n_features];
-		suil_add_feature(&instance->features, n_features, f->URI, f->data);
+	const LV2_Feature* const* fi         = features;
+	unsigned                  n_features = 0;
+	while (fi && *fi) {
+		const LV2_Feature* f = *fi++;
+		suil_add_feature(&instance->features, &n_features, f->URI, f->data);
 	}
 
 	// Add additional features implemented by SuilHost functions
 	if (host->index_func) {
 		instance->port_map.handle     = controller;
 		instance->port_map.port_index = host->index_func;
-		suil_add_feature(&instance->features, n_features++,
+		suil_add_feature(&instance->features, &n_features,
 		                 LV2_UI__portMap, &instance->port_map);
 	}
 	if (host->subscribe_func && host->unsubscribe_func) {
 		instance->port_subscribe.handle      = controller;
 		instance->port_subscribe.subscribe   = host->subscribe_func;
 		instance->port_subscribe.unsubscribe = host->unsubscribe_func;
-		suil_add_feature(&instance->features, n_features++,
+		suil_add_feature(&instance->features, &n_features,
 		                 LV2_UI__portSubscribe, &instance->port_subscribe);
 	}
 	if (host->touch_func) {
 		instance->touch.handle = controller;
 		instance->touch.touch  = host->touch_func;
-		suil_add_feature(&instance->features, n_features++,
+		suil_add_feature(&instance->features, &n_features,
 		                 LV2_UI__touch, &instance->touch);
 	}
 
diff --git a/src/suil_internal.h b/src/suil_internal.h
index cca12fa..385dc26 100644
--- a/src/suil_internal.h
+++ b/src/suil_internal.h
@@ -19,6 +19,7 @@
 
 #include <assert.h>
 #include <stdlib.h>
+#include <string.h>
 
 #ifdef _WIN32
 #include <windows.h>
@@ -101,17 +102,25 @@ suil_dlfunc(void* handle, const char* symbol)
 /** Add a feature to a (mutable) LV2 feature array. */
 static inline void
 suil_add_feature(LV2_Feature*** features,
-                 unsigned       n,
+                 unsigned*      n,
                  const char*    uri,
                  void*          data)
 {
+	for (unsigned i = 0; i < *n && (*features)[i]; ++i) {
+		if (!strcmp((*features)[i]->URI, uri)) {
+			(*features)[i]->data = data;
+			return;
+		}
+	}
+
 	*features = (LV2_Feature**)realloc(*features,
-	                                   sizeof(LV2_Feature*) * (n + 2));
+	                                   sizeof(LV2_Feature*) * (*n + 2));
 
-	(*features)[n]       = (LV2_Feature*)malloc(sizeof(LV2_Feature));
-	(*features)[n]->URI  = uri;
-	(*features)[n]->data = data;
-	(*features)[n + 1]   = NULL;
+	(*features)[*n]       = (LV2_Feature*)malloc(sizeof(LV2_Feature));
+	(*features)[*n]->URI  = uri;
+	(*features)[*n]->data = data;
+	(*features)[*n + 1]   = NULL;
+	*n += 1;
 }
 
 #endif  // SUIL_INTERNAL_H
diff --git a/src/x11_in_gtk2.c b/src/x11_in_gtk2.c
index 14b0ea2..abb58f6 100644
--- a/src/x11_in_gtk2.c
+++ b/src/x11_in_gtk2.c
@@ -150,10 +150,10 @@ suil_wrapper_new(SuilHost*      host,
 	wrapper->resize.handle    = wrap;
 	wrapper->resize.ui_resize = wrapper_resize;
 
-	suil_add_feature(features, n_features++, LV2_UI__parent,
+	suil_add_feature(features, &n_features, LV2_UI__parent,
 	                 (void*)(intptr_t)gtk_plug_get_id(wrap->plug));
 
-	suil_add_feature(features, n_features++, LV2_UI__resize,
+	suil_add_feature(features, &n_features, LV2_UI__resize,
 	                 &wrapper->resize);
 
 	return wrapper;
diff --git a/src/x11_in_qt4.cpp b/src/x11_in_qt4.cpp
index dafb384..669c9b4 100644
--- a/src/x11_in_qt4.cpp
+++ b/src/x11_in_qt4.cpp
@@ -62,10 +62,10 @@ suil_wrapper_new(SuilHost*      host,
 	wrapper->resize.handle    = ew;
 	wrapper->resize.ui_resize = wrapper_resize;
 
-	suil_add_feature(features, n_features++, LV2_UI__parent,
+	suil_add_feature(features, &n_features, LV2_UI__parent,
 	                 (void*)(intptr_t)ew->winId());
 
-	suil_add_feature(features, n_features++, LV2_UI__resize,
+	suil_add_feature(features, &n_features, LV2_UI__resize,
 	                 &wrapper->resize);
 
 	return wrapper;