Mon 21 Jul 22:43:21 CEST 2025

js/x11/examples/smoketest/putimage.js

@@ -0,0 +1,53 @@
+var Buffer = require('buffer').Buffer;
+var x11 = require('../../lib');
+var fs = require('fs');
+var logo1bit = fs.readFileSync('./nodejs-black.bmp');
+var pixmap = require('./bmp').decodeBuffer(logo1bit);
+
+var xclient = x11.createClient();
+var Exposure = x11.eventMask.Exposure;
+var PointerMotion = x11.eventMask.PointerMotion;
+
+var bitmap = new Buffer(128*128/8); // 16384 bits, 2048 bytes bitmap
+for (var i=0; i < bitmap.length; ++i)
+{
+    bitmap[i] = i % 256;
+}
+
+xclient.on('connect', function(err, display) {
+    var X = this;
+    var root = display.screen[0].root;
+    var white = display.screen[0].white_pixel;
+    var black = display.screen[0].black_pixel;
+    //console.log(display.screen[0]);
+
+    var wid = X.AllocID();
+    X.CreateWindow(
+       wid, root, 
+       10, 10, 400, 300, 
+       1, 1, 0,
+       { 
+           backgroundPixel: white, eventMask: Exposure|PointerMotion  
+       wid, root,
+       10, 10, 400, 300,
+       0, 0, 0, 0,
+       {
+           backgroundPixel: white, eventMask: Exposure|PointerMotion
+       }
+    );
+    X.MapWindow(wid);
+  
+    var gc = X.AllocID();
+    X.CreateGC(gc, wid, { foreground: black, background: white } );
+
+    X.on('event', function(ev) {
+        if (ev.type == 12) // expose
+        {
+            //X.PutImage(0, wid, gc, 128, 128, 20, 20, 0, 1, bitmap);
+            X.PutImage(0, wid, gc, pixmap.width, pixmap.height, 20, 20, 0, pixmap.depth, pixmap.data);
+        } 
+    });
+    X.on('error', function(e) {
+        console.log(e);
+    });
+});