glGetString

1 files changed, 14 insertions, 3 deletions

diff --git a/src/library_gl.js b/src/library_gl.js
index a20611c9..f69d3301 100644
--- a/src/library_gl.js
+++ b/src/library_gl.js
@@ -1,8 +1,19 @@
 mergeInto(Library, {
-  glGetString: function() {},
+  glGetString: function(name_) {
+    switch(name_) {
+      case Module.contextGL.VENDOR:
+      case Module.contextGL.RENDERER:
+      case Module.contextGL.VERSION:
+        return Pointer_make(intArrayFromString(Module.contextGL.getParameter(name_)), null, ALLOC_NORMAL);
+      case 0x1F03: // Extensions
+        return Pointer_make(intArrayFromString(Module.contextGL.getSupportedExtensions().join(' ')), null, ALLOC_NORMAL);
+      default:
+        throw 'Failure: Invalid glGetString value: ' + name_;
+    }
+  }
 
-  glGenVertexArrays: function() {},
+//  glGenVertexArrays: function() {},
 
-  glBindVertexArray: function() {},
+//  glBindVertexArray: function() {},
 });