Add support for Android Termux build, rewrite AsyncWorker implementat…

README.md

@@ -69,6 +69,23 @@ Please note that while node-gyp should work for compilation, it is possible that
 
 You need to update your path in order to to get AMD APP SDK's OpenCL.dll first in path resolution order.
 
+## Android / Termux
+
+Install Termux (https://termux.com)
+
+Install Termux Packages
+- pkg install clang lldb lldb-dev liblldb libuv-dev
+- pkg install nodejs-lts nodejs-lts-dev
+
+Install OpenCL headers and libraries
+- Copy libOpenCL.so to /data/data/com.termux/files/usr/lib
+- Copy opencl header files to /data/data/com.termux/files/usr/include/CL
+
+npm install
+
+When running tests and examples, it may be necessary to set LD_LIBRARY_PATH
+- LD_LIBRARY_PATH=/system/lib64:$LD_LIBRARY_PATH
+
 # Usage
 
 For now you can simply require this project and call native-like functions on the global object returned.

binding.gyp

@@ -41,7 +41,7 @@
           },
           'libraries': ['-framework OpenCL'],
         }],
-        ['OS in "linux freebsd openbsd solaris android"', {
+        ['OS in "linux freebsd openbsd solaris"', {
           'variables' : {
             # AMD APP SDK
             'OPENCL_SDK' : '<!(echo $AMDAPPSDKROOT)',
@@ -54,6 +54,18 @@
           'libraries': ['-L<(OPENCL_SDK_LIB)','-lOpenCL'],
           'cflags_cc': ['-std=c++11',' -Wall','-O3']
         }],
+        ['OS=="android"', {
+          'variables' : {
+            'OPENCL_SDK' : '<!(echo $AMDAPPSDKROOT)',
+            'OPENCL_SDK_INCLUDE' : '<(OPENCL_SDK)/include',
+            'OPENCL_SDK_LIB' : '<(OPENCL_SDK)/lib/x86_64',
+          },
+          'include_dirs' : [
+            "<(OPENCL_SDK_INCLUDE)",
+          ],
+          'libraries': ['-L<(OPENCL_SDK_LIB)','-lOpenCL', '-luv'],
+          'cflags_cc': ['-std=c++11',' -Wall','-O3',' -fPIC']
+        }],
         ['OS=="win"', {
           'variables' :
             {

examples/square_events.js

@@ -1,6 +1,8 @@
 var cl = require("../lib/opencl");
 var fs = require("fs");
 
+var bcallback = false;
+
 var Square = function() {
 
   var ctx = cl.createContextFromType(
@@ -46,14 +48,19 @@ var Square = function() {
   // here we use the returned user event to associate a callback that will be called from OpenCL
   // once read buffer is complete.
   var ev = cl.enqueueReadBuffer(cq, outputsMem, true, 0, NVALUES * 4, outputs, [], true);
+  console.log('have event');
+  console.log(ev);
 
-  cl.setEventCallback(ev, cl.COMPLETE, function(){
+  cl.setEventCallback(ev, cl.COMPLETE, function(ev2,estat,userData){
+    console.log('event handler');
     console.log("\nLast value is : " + outputs.readUInt32LE(4*(NVALUES-1)));
+
+    console.log({event: ev2,error_status: estat,userData});
 
     // now the program can end
     console.log("== CL callback thread terminated ==");
-    process.exit();
-  });
+    bcallback = true;
+  },{data:"hello"});
 
 };
 
@@ -62,4 +69,13 @@ Square();
 
 // Main thread will always finish before CL callbacks are finished.
 // Calling process.exit() in the main thread would skip CL callbacks from executing
-console.log("\n== Main thread terminated ==");
+
+(function wait () {
+   if (!bcallback) {
+     setTimeout(wait, 1000);
+   }
+   else {
+    console.log("\n== Main thread terminated ==");
+   }
+})();
+