Merge lp:~fboucault/qt-halide/fix-live-updates into lp:qt-halide

[Florian Boucault]

Fix HalideTransform::setLive not triggering a render if needed when going back to live

[lp:~fboucault/qt-halide/fix-live-updates]

273. By Florian Boucault on 2015-11-23

Merged from trunk

=== modified file 'tests/unit/tst_transform.qml'
--- tests/unit/tst_transform.qml	2015-06-09 16:34:24 +0000
+++ tests/unit/tst_transform.qml	2015-11-23 13:21:00 +0000
@@ -45,6 +45,13 @@
         property int channel: 0
     }
 
+    HalideFunction {
+        id: green
+        name: "channel"
+        property HalideImage input
+        property int channel: 1
+    }
+
     HalideImage {
         id: input
         source: "in.png"
@@ -143,6 +150,14 @@
 
             transform.live = false;
             compareAllPixelsWithColor(255, 128, 128, 255, "output changed after going off live");
+
+            spy.clear();
+            transform.functions = [green];
+            compare(spy.count, 0, "Updates should not be fired when changing functions while not live");
+
+            transform.live = true;
+            spy.waitForUpdate()
+            compareAllPixelsWithColor(128, 255, 128, 255, "new function list not rendered when going live");
         }
 
         // verify changing input will correctly be done