Enable logging to Matlab window using callback function

Also introduces a mex initialize function that is called
at the first invocation of any mex method.

1 files changed, 24 insertions, 0 deletions

diff --git a/matlab/mex/mexInitFunctions.cpp b/matlab/mex/mexInitFunctions.cpp
new file mode 100644
index 0000000..d8a50d7
--- /dev/null
+++ b/matlab/mex/mexInitFunctions.cpp
@@ -0,0 +1,24 @@
+#include <mex.h>
+#include "astra/Logging.h"
+
+bool mexIsInitialized=false;
+
+/**
+ * Callback to print log message to Matlab window.
+ *
+ */
+void logCallBack(const char *msg, size_t len){
+    mexPrintf(msg);
+}
+
+/**
+ * Initialize mex functions.
+ *
+ */
+void initASTRAMex(){
+    if(mexIsInitialized) return;
+    if(!astra::CLogger::setCallbackScreen(&logCallBack)){
+        mexErrMsgTxt("Error initializing mex functions.");
+    }
+    mexIsInitialized=true;
+}