From e712fdb0a5d28fb1ea4958ef961c7114a128c6ff Mon Sep 17 00:00:00 2001
From: Andrey Sidorov <sidorares@yandex.ru>
Date: Tue, 11 Dec 2012 14:13:39 +1100
Subject: [PATCH] draw first frame immediately

---
 examples/opengl/test1.js | 46 ++++++++++++++++++++++------------------
 1 file changed, 25 insertions(+), 21 deletions(-)

diff --git a/examples/opengl/test1.js b/examples/opengl/test1.js
index 3b1e1d2..9b0207b 100644
--- a/examples/opengl/test1.js
+++ b/examples/opengl/test1.js
@@ -18,7 +18,7 @@ x11.createClient(function(display) {
         var visuals = display.screen[0].depths[24];
         for (visual in visuals) {
           if (visuals[visual].class == 4 || visuals[visual].class == 5)
-            break;  
+            break;
         }
 
         var win = X.AllocID();
@@ -27,6 +27,28 @@ x11.createClient(function(display) {
         var ctx = X.AllocID();
         GLX.CreateContext(ctx, visual, 0, 0, 0);
         GLX.MakeCurrent(win, ctx, 0, function(err, ctx) {}); // do we need to wait for reply here?
+
+        function draw(ev) {
+            var gl = GLX.renderPipeline();
+            gl.Enable(0x0B71);
+            gl.Viewport(0, 0, 800, 800);
+            gl.MatrixMode(0x1701);
+            gl.LoadIdentity();
+            gl.Ortho(-30.0, 30.0, -30.0, 30.0, -300.0, 300.0);
+            //gl.Frustum(-30.0, 30.0, -30.0, 30.0, 30, 300.0);
+
+            gl.Rotatef(ev.y, 0, 0, 1);
+            gl.Rotatef(ev.x, 1, 0, 0);
+            gl.MatrixMode(0x1700);
+            gl.ClearColor(0.3,0.3,0.3,0.0);
+            gl.Clear(0x00004000|0x00000100);
+            gl.ShadeModel(0x1D01);
+            gl.LoadIdentity();
+            gl.CallList(listId);
+            gl.render(ctx);
+            GLX.SwapBuffers(ctx, win);
+        }
+
         GLX.GenLists(ctx, 1, function(err, startListIndex) {
             listId = startListIndex;
             GLX.NewList(ctx, listId, 0x00001300);
@@ -40,28 +62,10 @@ x11.createClient(function(display) {
             gl.End();
             gl.render(ctx);
             GLX.EndList(ctx);
+            draw({x: 10, y: 10});
         });
 
-        X.on('event', function(ev) {
-            var gl = GLX.renderPipeline();
-            gl.Enable(0x0B71);
-	    gl.Viewport(0, 0, 800, 800);
-	    gl.MatrixMode(0x1701);
-	    gl.LoadIdentity();
-	    gl.Ortho(-30.0, 30.0, -30.0, 30.0, -300.0, 300.0);
-	    //gl.Frustum(-30.0, 30.0, -30.0, 30.0, 30, 300.0);
-
-	    gl.Rotatef(ev.y, 0, 0, 1);
-	    gl.Rotatef(ev.x, 1, 0, 0);
-	    gl.MatrixMode(0x1700);
-	    gl.ClearColor(0.3,0.3,0.3,0.0);
-	    gl.Clear(0x00004000|0x00000100);
-	    gl.ShadeModel(0x1D01);
-	    gl.LoadIdentity();
-	    gl.CallList(listId);
-	    gl.render(ctx);
-	    GLX.SwapBuffers(ctx, win);
-        });
+        X.on('event', draw);
     });
     X.on('error', function(err) { console.log(err); });
 });