From 76f969e311920c4d1317a62d9653ce5ef52d17d0 Mon Sep 17 00:00:00 2001
From: Santiago Gimeno <santiago.gimeno@gmail.com>
Date: Mon, 10 Mar 2014 00:56:22 +0100
Subject: [PATCH] Add RANDR SetScreenConfig GetScreenInfo requests

- Also added ROTATION and CONFIGSTATUS types.
---
 lib/ext/randr.js | 92 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)

diff --git a/lib/ext/randr.js b/lib/ext/randr.js
index 2329a53..1a25a3d 100644
--- a/lib/ext/randr.js
+++ b/lib/ext/randr.js
@@ -40,6 +40,50 @@ exports.requireExt = function(display, callback)
             All: 15
         };
 
+        ext.Rotation = {
+            Rotate_0: 1,
+            Rotate_90: 2,
+            Rotate_180: 4,
+            Rotate_270: 8,
+            Reflect_X: 16,
+            Reflect_Y: 32
+        };
+
+        ext.ConfigStatus = {
+            Sucess: 0,
+            InvalidConfigTime: 1,
+            InvalidTime: 2,
+            Failed: 3
+        };
+
+        ext.SetScreenConfig = function(win, ts, configTs, sizeId, rotation, rate, cb) {
+            X.seq_num ++;
+            X.pack_stream.pack('CCSLLLSSSS', [ext.majorOpcode, 2, 6, win, ts, configTs, sizeId, rotation, rate, 0]);
+            X.replies[X.seq_num] = [
+                function(buf, opt) {
+                    var res = buf.unpack('LLLSSLL');
+                    return {
+                        status : opt,
+                        newTs : res [0],
+                        configTs : res[1],
+                        root : res[2],
+                        subpixelOrder : res[3]
+                    }
+                },
+                function(err, res) {
+                    var err;
+                    if (res.status !== 0) {
+                        err = new Error('SetScreenConfig error');
+                        err.code = res.status;
+                    }
+
+                    cb(err, res);
+                }
+            ];
+
+            X.pack_stream.flush();
+        },
+
         ext.SelectInput = function(win, mask)
         {
             X.seq_num++;
@@ -47,6 +91,54 @@ exports.requireExt = function(display, callback)
             X.pack_stream.flush();
         },
 
+        ext.GetScreenInfo = function(win, cb) {
+            X.seq_num ++;
+            X.pack_stream.pack('CCSL', [ext.majorOpcode, 5, 2, win]);
+            X.replies[X.seq_num] = [
+                function(buf, opt) {
+                    var i, j;
+                    var res = buf.unpack('LLLSSSSSS');
+                    var info = {
+                        rotations : opt,
+                        root : res [0],
+                        timestamp : res[1],
+                        config_timestamp : res[2],
+                        nSizes : res[3],
+                        sizeID : res[4],
+                        rotation : res[5],
+                        rate : res[6],
+                        nInfo : res[7]
+                    };
+
+                    var screens_len = info.nSizes * 4;
+                    var format = Array(screens_len + 1).join('S');
+                    res = buf.unpack(format, 24);
+                    info.screens = [];
+                    for (i = 0; i < screens_len; i += 4) {
+                        console.log(i);
+                        info.screens.push({
+                            px_width : res[i],
+                            px_height : res[i + 1],
+                            mm_width : res[i + 2],
+                            mm_height : res[i + 3]
+                        });
+                    }
+
+                    format = Array(info.nInfo + 1).join('S');
+                    res = buf.unpack(format, 24 + screens_len * 2);
+                    i = 0, j = 0;
+                    for (i = 0, j = 0; i < info.screens.length; ++i, j += res[j] + 1) {
+                        info.screens[i].rates = res.slice(j + 1, j + 1 + res[j]);
+                    }
+
+                    return info;
+                },
+                cb
+            ];
+
+            X.pack_stream.flush();
+        },
+
         X.eventParsers[ext.firstEvent + ext.events.RRScreenChangeNotify] = function(type, seq, extra, code, raw) 
         {
 	    var event = {};