/// <summary>
/// Constructs a new compiled kernel in OpenCL source form.
/// </summary>
/// <param name="context">The associated context.</param>
/// <param name="entryPoint">The entry point.</param>
/// <param name="source">The source code.</param>
/// <param name="version">The OpenCL C version.</param>
public CLCompiledKernel(
Context context,
SeparateViewEntryPoint entryPoint,
string source,
CLCVersion version)
: base(context, entryPoint)
{
Source = source;
CVersion = version;
}
/// <summary>
/// Tries to parse the given string expression into an OpenCL C version.
/// </summary>
/// <param name="expression">The expression to parse.</param>
/// <param name="version">The parsed version (if any).</param>
/// <returns>True, if the given expression could be parsed into an OpenCL C version.</returns>
public static bool TryParse(string expression, out CLCVersion version)
{
version = default;
var match = VersionRegex.Match(expression);
if (!match.Success)
{
return(false);
}
version = new CLCVersion(
int.Parse(match.Groups[2].Value),
int.Parse(match.Groups[3].Value));
return(true);
}
/// <summary>
/// Constructs a new OpenCL source backend.
/// </summary>
/// <param name="context">The context to use.</param>
/// <param name="capabilities">The supported capabilities.</param>
/// <param name="vendor">The associated major vendor.</param>
/// <param name="clStdVersion">The OpenCL C version passed to -cl-std.</param>
public CLBackend(
Context context,
CLCapabilityContext capabilities,
CLDeviceVendor vendor,
CLCVersion clStdVersion)
: base(
context,
capabilities,
BackendType.OpenCL,
new CLArgumentMapper(context))
{
Vendor = vendor;
CLStdVersion = clStdVersion;
InitIntrinsicProvider();
InitializeKernelTransformers(builder =>
{
var transformerBuilder = Transformer.CreateBuilder(
TransformerConfiguration.Empty);
transformerBuilder.AddBackendOptimizations <CodePlacement.GroupOperands>(
new CLAcceleratorSpecializer(
PointerType,
Context.Properties.EnableIOOperations),
context.Properties.InliningMode,
context.Properties.OptimizationLevel);
builder.Add(transformerBuilder.ToTransformer());
});
// Build a list of extensions to enable for each OpenCL kernel.
var extensionBuilder = new StringBuilder();
foreach (var extensionName in Capabilities.Extensions)
{
extensionBuilder.Append("#pragma OPENCL EXTENSION ");
extensionBuilder.Append(extensionName);
extensionBuilder.AppendLine(" : enable");
}
extensions = extensionBuilder.ToString();
}
