From 15e05b22afe910582a7ea55e2faad25501412349 Mon Sep 17 00:00:00 2001
From: dan <dan@sawtoothideas.com>
Date: Wed, 13 Aug 2014 13:59:54 -0600
Subject: [PATCH 1/2] Add OSMesaCreateContextExt wrapper method.

---
 src/bindings.cc |  1 +
 src/webgl.cc    | 15 +++++++++++++++
 src/webgl.h     |  1 +
 3 files changed, 17 insertions(+)

diff --git a/src/bindings.cc b/src/bindings.cc
index f4f983f..4de2220 100644
--- a/src/bindings.cc
+++ b/src/bindings.cc
@@ -17,6 +17,7 @@ void init(Handle<Object> target)
   atexit(webgl::AtExit);
 
   NODE_SET_METHOD(target, "CreateContext", webgl::CreateContext);
+  NODE_SET_METHOD(target, "CreateContextExt", webgl::CreateContextExt);
   NODE_SET_METHOD(target, "DestroyContext", webgl::DestroyContext);
   NODE_SET_METHOD(target, "MakeCurrent", webgl::MakeCurrent);
  
diff --git a/src/webgl.cc b/src/webgl.cc
index b173978..c6c237f 100644
--- a/src/webgl.cc
+++ b/src/webgl.cc
@@ -112,6 +112,21 @@ NAN_METHOD(CreateContext) {
   NanReturnValue(JS_INT((intptr_t)context));
 }
 
+NAN_METHOD(CreateContextExt) {
+  NanScope();
+
+  GLenum format = args[0]->Int32Value();
+  GLint depthBits = args[1]->Int32Value();
+  GLint stencilBits = args[2]->Int32Value();
+  GLint accumBits = args[3]->Int32Value();
+  OSMesaContext shareList = getOSMesaContext(args[4]);
+
+  OSMesaContext context = OSMesaCreateContextExt(format, depthBits, stencilBits, accumBits, shareList);
+  std::cout << "CreateContextExt: " << context << std::endl;
+
+  NanReturnValue(JS_INT((intptr_t)context));
+}
+
 NAN_METHOD(DestroyContext) {
   NanScope();
 
diff --git a/src/webgl.h b/src/webgl.h
index 8c09d23..a696aea 100644
--- a/src/webgl.h
+++ b/src/webgl.h
@@ -17,6 +17,7 @@ namespace webgl {
 void AtExit();
 
 NAN_METHOD(CreateContext);
+NAN_METHOD(CreateContextExt);
 NAN_METHOD(DestroyContext);
 NAN_METHOD(MakeCurrent);
 

From 577aa8d5d6fbfea07c662d3bf9b064b1b30b7385 Mon Sep 17 00:00:00 2001
From: dan <dan@sawtoothideas.com>
Date: Thu, 14 Aug 2014 01:43:52 -0600
Subject: [PATCH 2/2] Check for NULL shareList parameter.

---
 src/webgl.cc | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/webgl.cc b/src/webgl.cc
index c6c237f..420ed1b 100644
--- a/src/webgl.cc
+++ b/src/webgl.cc
@@ -119,9 +119,15 @@ NAN_METHOD(CreateContextExt) {
   GLint depthBits = args[1]->Int32Value();
   GLint stencilBits = args[2]->Int32Value();
   GLint accumBits = args[3]->Int32Value();
-  OSMesaContext shareList = getOSMesaContext(args[4]);
 
-  OSMesaContext context = OSMesaCreateContextExt(format, depthBits, stencilBits, accumBits, shareList);
+  OSMesaContext context;
+  if(args[4]->IsNull()) {
+    context = OSMesaCreateContextExt(format, depthBits, stencilBits, accumBits, NULL);
+  } else {
+    OSMesaContext shareList = getOSMesaContext(args[4]);
+    context = OSMesaCreateContextExt(format, depthBits, stencilBits, accumBits, shareList);
+  }
+
   std::cout << "CreateContextExt: " << context << std::endl;
 
   NanReturnValue(JS_INT((intptr_t)context));