From 862cb7f77757a8bed17e80881282b01f7fa308cd Mon Sep 17 00:00:00 2001
From: Simon Hailes <btsimonh@googlemail.com>
Date: Sat, 4 Nov 2017 15:01:26 +0000
Subject: [PATCH] Update examples/readimage.js for readImageAsync.

---
 examples/readimage.js | 55 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 54 insertions(+), 1 deletion(-)

diff --git a/examples/readimage.js b/examples/readimage.js
index 6017e1e..d0d49b9 100644
--- a/examples/readimage.js
+++ b/examples/readimage.js
@@ -7,7 +7,6 @@ var imgdata = fs.readFileSync("./files/mona.png");
 
 
 
-
 var img = cv.readImage("./files/mona.png");
 console.log('Synchronous readImage("./files/mona.png")'+img.width()+'x'+img.height());
 
@@ -56,3 +55,57 @@ cv.readImage(imgdata, 1, function(err, im){
 
 
 
+
+
+// try with readImageAsync
+console.log('Now with readImageAsync');
+
+img = cv.readImageAsync("./files/mona.png");
+console.log('Synchronous readImageAsync("./files/mona.png")'+img.width()+'x'+img.height());
+
+cv.readImageAsync("./files/mona.png", function(err, im){
+	console.log('Asynchronous callback readImageAsync("./files/mona.png", fn(){})'+im.width()+'x'+im.height());
+});
+
+img = cv.readImageAsync( 100, 100 );
+console.log('Synchronous readImageAsync(100, 100) (create mat)'+img.width()+'x'+img.height()+' type '+img.type());
+
+cv.readImageAsync(100, 100, function(err, im){
+	console.log('!!Synchronous!! callback readImageAsync(100, 100, fn(){}) (create mat)'+im.width()+'x'+im.height());
+});
+
+img = cv.readImageAsync(imgdata);
+console.log('Synchronous readImageAsync(imgdata:Buffer)'+img.width()+'x'+img.height());
+
+cv.readImageAsync(imgdata, function(err, im){
+	console.log('Asynchronous callback readImageAsync(imgdata:Buffer, fn(){})'+im.width()+'x'+im.height());
+});
+
+
+
+// try with flags now
+console.log('Now Async with flags');
+
+img = cv.readImageAsync("./files/mona.png", 0);
+console.log('Synchronous readImageAsync("./files/mona.png", 0) (monochrome)'+img.width()+'x'+img.height()+' type '+img.type());
+
+cv.readImageAsync("./files/mona.png", 1, function(err, im){
+	console.log('Asynchronous callback readImageAsync("./files/mona.png", 1, fn(){}) (colour)'+im.width()+'x'+im.height()+' type '+im.type());
+});
+
+img = cv.readImageAsync( 100, 100, cv.Constants.CV_8UC3 );
+console.log('Synchronous readImageAsync(100, 100, cv.Constants.CV_8UC3) (create 8 bit 3 channel mat)'+img.width()+'x'+img.height()+' type '+img.type());
+
+cv.readImageAsync(100, 100, cv.Constants.CV_8UC1, function(err, im){
+	console.log('!!Synchronous!! callback readImageAsync(100, 100, cv.Constants.CV_8UC1, fn(){}) (create mat)'+im.width()+'x'+im.height()+' type '+im.type());
+});
+
+img = cv.readImageAsync(imgdata, 0);
+console.log('Synchronous readImageAsync(imgdata:Buffer, 0) (monochrome)'+img.width()+'x'+img.height()+' type '+img.type());
+
+cv.readImageAsync(imgdata, 1, function(err, im){
+	console.log('Asynchronous callback readImageAsync(imgdata:Buffer, 1, fn(){}) (colour)'+im.width()+'x'+im.height()+' type '+im.type());
+});
+
+console.log('\nTruely Async callbacks should be after this line\n');
+