From d9dc6a396f415df815e5046d3692910ef74e1722 Mon Sep 17 00:00:00 2001
From: XMRig <support@xmrig.com>
Date: Mon, 23 Sep 2019 05:33:48 +0700
Subject: [PATCH] Add support for initialize OpenCL in runtime.

---
 src/backend/opencl/OclBackend.cpp | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/backend/opencl/OclBackend.cpp b/src/backend/opencl/OclBackend.cpp
index 4820ce086..9b226811f 100644
--- a/src/backend/opencl/OclBackend.cpp
+++ b/src/backend/opencl/OclBackend.cpp
@@ -135,6 +135,10 @@ public:
             return printDisabled(RED_S " (failed to load OpenCL runtime)");
         }
 
+        if (platform.isValid()) {
+            return;
+        }
+
         platform = cl.platform();
         if (!platform.isValid()) {
             return printDisabled(RED_S " (selected OpenCL platform NOT found)");
@@ -302,12 +306,15 @@ void xmrig::OclBackend::printHashrate(bool details)
 
 void xmrig::OclBackend::setJob(const Job &job)
 {
+    const OclConfig &cl = d_ptr->controller->config()->cl();
+    if (cl.isEnabled()) {
+        d_ptr->init(cl);
+    }
+
     if (!isEnabled()) {
         return stop();
     }
 
-    const OclConfig &cl = d_ptr->controller->config()->cl();
-
     std::vector<OclLaunchData> threads = cl.get(d_ptr->controller->miner(), job.algorithm(), d_ptr->platform, d_ptr->devices, tag);
     if (!d_ptr->threads.empty() && d_ptr->threads.size() == threads.size() && std::equal(d_ptr->threads.begin(), d_ptr->threads.end(), threads.begin())) {
         return;