Enable setting kernel args

README.md

@@ -32,7 +32,7 @@ It is mainly developed and tested on Linux and with Intel and Nvidia GPUs. It sh
   - [ ] querying program (build) info
 - [ ] kernel objects
   - [x] creating and releasing kernels
-  - [ ] setting arguments
+  - [x] setting arguments
   - [ ] querying kernel, work group and argument info
   - [ ] executing kernels
 - [ ] event objects

kernel.go

@@ -37,3 +37,15 @@ func (k Kernel) Release() error {
 	}
 	return nil
 }
+
+func (k Kernel) SetArg(index uint, size uintptr, value unsafe.Pointer) error {
+	err := C.clSetKernelArg(k.kernel, C.cl_uint(index), C.size_t(size), value)
+	if err != C.CL_SUCCESS {
+		return fmt.Errorf("error setting kernel argument: %d", err)
+	}
+	return nil
+}
+
+func (k Kernel) SetArgBuffer(index uint, buffer Memory) error {
+	return k.SetArg(index, unsafe.Sizeof(buffer.memory), unsafe.Pointer(&buffer.memory))
+}