From daeeeb86760f5571e283e579e2cac66919a2e15d Mon Sep 17 00:00:00 2001
From: Hatef <hatefesfahani77@gmail.com>
Date: Mon, 11 Jul 2022 10:48:45 +0430
Subject: [PATCH] Successfully running kernel first time

---
 main.cpp | 98 ++++++++++++++++++--------------------------------------
 test1.cl |  5 +++
 2 files changed, 37 insertions(+), 66 deletions(-)
 create mode 100644 test1.cl

diff --git a/main.cpp b/main.cpp
index 52b16ed..f6f5198 100644
--- a/main.cpp
+++ b/main.cpp
@@ -2,6 +2,8 @@
 #define CL_HPP_TARGET_OPENCL_VERSION 120
 
 #include <QCoreApplication>
+#include <QFile>
+#include <QTextStream>
 #include <CL/cl2.hpp>
 #include <QDebug>
 
@@ -9,84 +11,48 @@ int main(int argc, char* argv[])
 {
     QCoreApplication a(argc, argv);
 
-//std::vector<cl::Platform> all_platforms;
-////std::vector<cl::Device> all_dev;
-//cl::Platform::get(&all_platforms);
-////cl::Device::get(&all_dev);
+    std::vector<cl::Platform> all_platforms;
+    cl::Platform::get(&all_platforms);
 
-//qDebug() << "Number of platforms found:" << all_platforms.size();
+    qDebug() << "Number of platforms found:" << all_platforms.size();
 
-//foreach(auto platform, all_platforms)
-//{
-//qDebug() << platform.getInfo<CL_PLATFORM_NAME>().data();
-//}
-
-//std::vector<cl::Device> all_devices;
-//all_platforms.front().getDevices(CL_DEVICE_TYPE_GPU, &all_devices);
-
-//foreach(auto device, all_devices)
-//{
-//qDebug() << device.getInfo<CL_DEVICE_NAME>().data();
-//}
-
-////cl::Context main_context(all_devices.front());
+    foreach(auto platform, all_platforms)
+    {
+        qDebug() << platform.getInfo<CL_PLATFORM_NAME>().data();
+    }
 
-////cl::Program program(main_context)
-///
-///
-///
-    std::vector<cl::Platform> platforms;
-    cl::Platform::get(&platforms);
+    std::vector<cl::Device> all_devices;
+    all_platforms.front().getDevices(CL_DEVICE_TYPE_GPU, &all_devices);
 
-    int platform_id = 0;
-    int device_id = 0;
+    foreach(auto device, all_devices)
+    {
+        qDebug() << device.getInfo<CL_DEVICE_NAME>().data();
+    }
 
-    qDebug() << "Number of Platforms: " << platforms.size();
+    cl::Context main_context(all_devices.front());
 
-    for(std::vector<cl::Platform>::iterator it = platforms.begin(); it != platforms.end(); ++it)
+    QFile cl_file("../OpenCL/test1.cl");
+    if(!cl_file.open(QIODevice::ReadOnly))
     {
-        cl::Platform platform(*it);
-
-        qDebug() << "Platform ID: " << platform_id++;
-        qDebug() << "Platform Name: " << platform.getInfo<CL_PLATFORM_NAME>().data();
-        qDebug() << "Platform Vendor: " << platform.getInfo<CL_PLATFORM_VENDOR>().data();
+        qDebug() << cl_file.errorString();
+    }
+    auto script = cl_file.readAll();
+    qDebug() << script;
+    cl_file.close();
 
-        std::vector<cl::Device> devices;
-        platform.getDevices(CL_DEVICE_TYPE_GPU | CL_DEVICE_TYPE_CPU, &devices);
+    cl_int error;
+    cl::Program program(main_context, script.toStdString(), CL_TRUE, &error);
+    qDebug() << error;
 
-        for(std::vector<cl::Device>::iterator it2 = devices.begin(); it2 != devices.end(); ++it2)
-        {
-            cl::Device device(*it2);
+    cl::Kernel kernel(program, "myVeryFirstFinction", &error);
+    qDebug() << error;
 
-            qDebug() << "\tDevice " << device_id++ << ": ";
-            qDebug() << "\t\tDevice Name: " << device.getInfo<CL_DEVICE_NAME>().data();
-            qDebug() << "\t\tDevice Vendor: " << device.getInfo<CL_DEVICE_VENDOR>().data();
-            qDebug() << "\t\tDevice Version: " << device.getInfo<CL_DEVICE_VERSION>().data();
-            switch(device.getInfo<CL_DEVICE_TYPE>())
-            {
-                case 4:
-                    qDebug() << "\t\tDevice Type: GPU";
-                    break;
+    cl::KernelFunctor<> Functor(kernel);
 
-                case 2:
-                    qDebug() << "\t\tDevice Type: CPU";
-                    break;
+    cl::CommandQueue queue(main_context, all_devices.front());
+    cl::EnqueueArgs enargs(queue, cl::NDRange(5));
 
-                default:
-                    qDebug() << "\t\tDevice Type: unknown";
-            }
-            qDebug() << "\t\tDevice Max Compute Units: " <<
-            device.getInfo<CL_DEVICE_MAX_COMPUTE_UNITS>();
-            qDebug() << "\t\tDevice Global Memory: " << device.getInfo<CL_DEVICE_GLOBAL_MEM_SIZE>();
-            qDebug() << "\t\tDevice Max Clock Frequency: " <<
-            device.getInfo<CL_DEVICE_MAX_CLOCK_FREQUENCY>();
-            qDebug() << "\t\tDevice Max Memory Allocation: " <<
-            device.getInfo<CL_DEVICE_MAX_MEM_ALLOC_SIZE>();
-            qDebug() << "\t\tDevice Local Memory: " << device.getInfo<CL_DEVICE_LOCAL_MEM_SIZE>();
-            qDebug() << "\t\tDevice Available: " << device.getInfo<CL_DEVICE_AVAILABLE>();
-        }
-        qDebug();
-    }
+    Functor(enargs);
 
     return a.exec();
 }
diff --git a/test1.cl b/test1.cl
new file mode 100644
index 0000000..d5f92e3
--- /dev/null
+++ b/test1.cl
@@ -0,0 +1,5 @@
+void __kernel myVeryFirstFinction()
+{
+   if(get_global_id(0))
+      printf("Success!");
+}