public void TestMethod1()
{
const string SOURCE_CODE = @"
__kernel void add_array(__global float *a, __global float *b, __global float *c)
{
int xid = get_global_id(0);
c[xid] = a[xid] + b[xid];
}";
const int length = 10;
using (OpenClCompiler builder = new OpenClCompiler(SOURCE_CODE, DeviceType.Gpu)) // <- device selector ("*GTX*")
using (OpenClBridge bridge = builder.GetMethode("add_array")) // methode capture
using (SvmPointer <float> a = builder.AllocSvmMemory <float>(length)) // buffer init
using (SvmPointer <float> b = builder.AllocSvmMemory <float>(length)) // buffer init
using (SvmPointer <float> c = builder.AllocSvmMemory <float>(length)) // buffer init
{
//init values
for (int i = 0; i < length; i++)
{
a[i] = b[i] = i;
}
bridge.Execute(new IntPtr[] { (IntPtr)length }, new SvmPointer[] { a, b, c }); // exec
//check values
for (int i = 0; i < length; i++)
{
Assert.AreEqual(a[i] + b[i], c[i]);
}
}
}
static void Main(string[] args)
{
string gpuCode = Encoding.Default.GetString(Properties.Resources.GrayScale.Skip(3).ToArray());
OpenClBridge bridge = EasyClCompiler.CompileProgramFromSource(gpuCode, "run");
using (Bitmap bmp = Properties.Resources.bild1) {
Rectangle rect = new Rectangle(Point.Empty, bmp.Size);
BitmapData bmpData = bmp.LockBits(rect, ImageLockMode.ReadWrite, bmp.PixelFormat);
int byteCount = bmpData.Stride * bmp.Height;
byte[] buffer = new byte[byteCount];
unsafe
{
fixed(byte *bufferPtr = buffer)
{
CopyMemory((IntPtr)bufferPtr, bmpData.Scan0, byteCount);
}
}
using (KernelImage kernelImageIn = new KernelImage(0, MemFlags.CopyHostPtr, buffer, bmp.Width, bmp.Height, bmp.PixelFormat)) {
using (KernelImage kernelImageOut = new KernelImage(1, MemFlags.CopyHostPtr, bmp)) {
bridge.SetKernerArgImg2D(kernelImageIn);
bridge.SetKernerArgImg2D(kernelImageOut);
bridge.Execute(kernelImageIn.WorkGroupSizePtr);
unsafe
{
fixed(byte *outBuffPtr = kernelImageOut.Source)
{
MoveMemory(bmpData.Scan0, (IntPtr)outBuffPtr, byteCount);
}
}
}
}
bmp.UnlockBits(bmpData);
bmp.Save("image-green-scale.png", ImageFormat.Png);
}
}
