# HG changeset patch
# User Chris Cannam
# Date 1409740269 -3600
# Node ID db0759e4c6c3df00235cb5aed6b8bf8f7478f2fb
# Parent  532302d0457188ecb4479c08e71a7dbea14a18fd
Fix some (probably benign) uninitialised members (from coverity scan)

diff -r 532302d04571 -r db0759e4c6c3 layer/Colour3DPlotLayer.cpp
--- a/layer/Colour3DPlotLayer.cpp	Tue Sep 02 16:18:26 2014 +0100
+++ b/layer/Colour3DPlotLayer.cpp	Wed Sep 03 11:31:09 2014 +0100
@@ -109,7 +109,7 @@
 void
 Colour3DPlotLayer::cacheInvalid(int startFrame, int endFrame)
 {
-    if (!m_cache) return;
+    if (!m_cache || !m_model) return;
 
     int modelResolution = m_model->getResolution();
     int start = startFrame / modelResolution;
@@ -1529,7 +1529,9 @@
                 int sx0i = int(sx0 + epsilon);
                 if (sx0i >= sw) break;
 
-                float a, b, value;
+                float a = float(sourceLine[sx0i]);
+                float b = a;
+                float value;
 
                 float sx1 = sxa[x*2+1];
                 if (sx1 > sx0 + 1.f) {