From fdcb9bb1f85ade64cad0bcd0edce019ce76a7cf9 Mon Sep 17 00:00:00 2001
From: sbosse <sbosse@uni-bremen.de>
Date: Mon, 21 Jul 2025 23:00:13 +0200
Subject: [PATCH] Mon 21 Jul 22:43:21 CEST 2025

---
 js/x11/core/examples/opengl/triangle.js | 85 +++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 js/x11/core/examples/opengl/triangle.js

diff --git a/js/x11/core/examples/opengl/triangle.js b/js/x11/core/examples/opengl/triangle.js
new file mode 100644
index 0000000..7abbc85
--- /dev/null
+++ b/js/x11/core/examples/opengl/triangle.js
@@ -0,0 +1,85 @@
+var x11 = require('../../lib');
+
+var randomarr = [];
+for(var i=0; i < 20000; ++i) {
+    randomarr.push([Math.random()*30-15, Math.random()*30-15, Math.random()*30-15]);
+}
+
+var xclient = x11.createClient(function(err, display) {
+    var X = display.client;
+    var root = display.screen[0].root;
+    X.require('glx', function(err, GLX) {
+        var screen = 0;
+        var isDirect = 0;
+        var ctx = X.AllocID();
+        var visual = 0xa1;
+        var shareListCtx = 0;
+        var width = 800;
+        var height = 800;
+        GLX.CreateContext(ctx, visual, screen, shareListCtx, isDirect);
+        var win = X.AllocID();
+        X.CreateWindow(win, root, 0, 0, width, height, 0, 0, 0, 0, { eventMask: x11.eventMask.PointerMotion });
+        X.MapWindow(win);
+        GLX.MakeCurrent(win, ctx, 0, function(err, res) {
+
+
+GLX.NewList(ctx, 1, 0x00001300);
+var gl = GLX.renderPipeline();
+gl.Begin(0x0004);
+for (var i=0; i < 10000; ++i)
+{
+    gl.Vertex3f(randomarr[i][0], randomarr[i][1], randomarr[i][2]);
+    gl.Color3f((randomarr[i+10000][0]+15/30), (randomarr[i+10000][1]+15)/30, (randomarr[i+10000][2]+15)/30);
+}
+gl.End();
+gl.render(ctx);
+GLX.EndList(ctx);
+
+            var i = 0.0;
+            X.on('event', function(ev) {
+                var gl = GLX.renderPipeline();
+
+  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.Rotatef(ev.y, 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.Translatef(ev.x/100+-15.0, ev.y/100+-15.0, 0.0);
+  gl.Scalef(0.1, 0.1, 1);
+
+  gl.Translatef(-15.0, -15.0, 0.0);
+  //gl.Rotatef(ev.y, 0, 0, 1);
+  gl.Begin(0x0004);
+  gl.Color3f(1.0, 0.0, 0.0);
+  gl.Vertex3f(0.0, 0.0, 0.0);
+  gl.Color3f(0.0, 1.0, 0.0);
+  gl.Vertex3f(30.0, 0.0, 0.0);
+  gl.Color3f(0.0, 0.0, 1.0);
+  gl.Vertex3f(0.0, 30.0, 0);
+
+  var list = false;
+  if (list) {
+    gl.CallList(1);
+  } else {
+    for (var i=0; i < 500; ++i)
+    {
+      gl.Vertex3f(randomarr[i][0], randomarr[i][1], randomarr[i][2]);
+      gl.Color3f((randomarr[i+500][0]+15/30), (randomarr[i+500][1]+15)/30, (randomarr[i+500][2]+15)/30);
+    }
+  }
+
+  gl.End();
+                gl.render(ctx);
+                GLX.SwapBuffers(ctx, win);
+            //}, 30);
+            });
+        });
+    });
+    X.on('error', function(err) { console.log(err); });
+});