fix memory leak

contrib/mobile/drawContext.cpp

@@ -62,6 +62,7 @@ void drawContext::load(std::string filename)
 
   // restore default options
   GmshRestoreDefaultOptions();
+  GmshSetOption("General", "Terminal", 1.0);
 
   // open the file with Gmsh
   GmshOpenProject(filename);
@@ -626,6 +627,7 @@ void drawContext::drawView()
   checkGlError("Initialize position");
 
   glEnable(GL_DEPTH_TEST);
+
   drawMesh();
   checkGlError("Draw mesh");
   drawGeom();

contrib/mobile/drawString.cpp

@@ -10,6 +10,7 @@
 
 drawString::drawString(std::string text, int size, float color[4])
 {
+  _map = 0;
   _size = size;
   if(color == NULL)
     setColor(0.0f, 0.0f, 0.0f, 1.0f);

contrib/mobile/iOS/Onelab/ModelViewController.mm

@@ -381,10 +381,11 @@ void getBitmap(void *self, const char *text, int textsize, unsigned char **map,
   i=2;
   while(i<*height) i*=2;
   *height = i;
+
   UIGraphicsBeginImageContextWithOptions(CGSizeMake(*width, *height), NO, 0.0);
   [lbl.layer renderInContext:UIGraphicsGetCurrentContext()];
   UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
-
+  UIGraphicsEndImageContext();
   CGImageRef bitmap = [img CGImage];
   CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
   unsigned char *rawData = (unsigned char*) calloc(*height * *width * 4, sizeof(unsigned char));