public static void GenerateKernels(string kernelDirectory)
{
string baseKernelPath = $"{kernelDirectory}/BaseKernel.cs";
if (!File.Exists(baseKernelPath))
{
throw new Exception("No base kernel detected!");
}
string[] code = File.ReadAllLines(baseKernelPath);
var constantMapping = new ConstantMapping(code);
var functionMappings = new FunctionMapping(code);
string[] kerenelFiles = Directory.GetFiles(kernelDirectory);
foreach (string kernelPath in kerenelFiles)
{
string kernelName = Path.GetFileNameWithoutExtension(kernelPath);
if (kernelName == "BaseKernel")
{
continue;
}
KernelFile kernelFile = CreateKernel(kernelPath, constantMapping, functionMappings);
KernelCache.Add(kernelName, kernelFile);
}
}
private static KernelFile CreateKernel(string codePath, ConstantMapping constants, FunctionMapping functions)
{
string[] lines = File.ReadAllLines(codePath);
int kernelIndex = SourceHelper.ParseDown(lines, "public void Run", 0);
string kernelFunction = lines[kernelIndex];
string kernelParameters = SourceHelper.ExtractFunctionHeader(kernelFunction);
kernelParameters = kernelParameters.Replace("int[]", "global int*");
kernelParameters = kernelParameters.Replace("float[]", "global float*");
var clCode = new List <string>();
if (IsFP64(kernelFunction))
{
clCode.Add("#pragma OPENCL EXTENSION cl_khr_fp64 : enable");
}
clCode.Add("kernel void Run " + kernelParameters);
int codeEnd = lines.Length;
for (int i = 0; i < 3; i++)
{
codeEnd = SourceHelper.ParseUp(lines, "}", codeEnd - 1);
}
for (int i = kernelIndex + 1; i < codeEnd + 1; i++)
{
clCode.Add(lines[i].Trim());
}
// Replace constants and inline functions
functions.Inline(clCode);
constants.Replace(clCode);
return(new KernelFile {
Code = string.Join("\n", clCode)
});
}