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Mon 21 Jul 22:43:21 CEST 2025

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sbosse 2025-07-21 23:04:00 +02:00
parent 41bfacdfe1
commit cde8a0ce83
1 changed files with 72 additions and 0 deletions
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js/x11/examples/opengl/test1.js Normal file
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var x11 = require('../../lib');
var randomarr = [];
for(var i=0; i < 2000; ++i) {
randomarr.push([Math.random()*30-15, Math.random()*30-15, Math.random()*30-15]);
}
var width = 500;
var height = 500;
var eventmask = x11.eventMask.PointerMotion;
var listId = 1;
x11.createClient(function(err, display) {
var X = display.client;
var root = display.screen[0].root;
X.require('glx', function(err, GLX) {
var visual = 0;
var visuals = display.screen[0].depths[24];
for (visual in visuals) {
if (visuals[visual].class == 4 || visuals[visual].class == 5)
break;
}
var win = X.AllocID();
X.CreateWindow(win, root, 0, 0, width, height, 0, 0, 0, visual, { eventMask: eventmask });
X.MapWindow(win);
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);
var gl = GLX.renderPipeline();
gl.Begin(0x0004);
for (var i=0; i < 1000; ++i)
{
gl.Vertex3f(randomarr[i][0], randomarr[i][1], randomarr[i][2]);
gl.Color3f((randomarr[i+1000][0]+15/30), (randomarr[i+1000][1]+15)/30, (randomarr[i+1000][2]+15)/30);
}
gl.End();
gl.render(ctx);
GLX.EndList(ctx);
draw({x: 10, y: 10});
});
X.on('event', draw);
});
X.on('error', function(err) { console.log(err); });
});