private IEmitVal EmitExpImpl(
MidBuiltinApp app,
IEmitBlock block,
EmitEnv env)
{
var template = app.Decl.GetTemplate(Target.TargetName);
if (template == null)
{
Diagnostics.Add(
Severity.Error,
new SourceRange(),
"No builtin function implementation defined for \"{0}\" for target \"{1}\"",
app.Decl.Name,
Target.TargetName);
return(block.Local("error", EmitType(app.Type, env)));
}
var args = (from a in app.Args
select EmitExp(a, block, env)).ToArray();
return(block.BuiltinApp(
EmitType(app.Type, env),
template,
args));
}
private AttrInfo DecomposeAttrImpl(
MidBuiltinApp app,
DecomposeAttrContext context)
{
string template = app.Decl.GetTemplate("blend");
if (template == null)
{
throw OperationTooComplexError(app.Range);
}
var args = app.Args.ToArray();
switch (template)
{
case "AddFloat4":
{
var left = DecomposeAttr(args[0], context);
var right = DecomposeAttr(args[1], context);
return(new OpInfo(
app.Range,
D3D11_BLEND_OP.D3D11_BLEND_OP_ADD,
left,
right));
}
case "MulFloat4": {
var left = DecomposeAttr(args[0], context);
var right = DecomposeAttr(args[1], context);
return(new TermInfo(app.Range, left, right));
}
case "MulFloat_Float4": {
var left = DecomposeAttr(args[0], context.SwitchToAlpha());
var right = DecomposeAttr(args[1], context);
return(new TermInfo(app.Range, left, right));
}
case "MulFloat4_Float": {
var left = DecomposeAttr(args[0], context);
var right = DecomposeAttr(args[1], context.SwitchToAlpha());
return(new TermInfo(app.Range, left, right));
}
case "GetAlpha": {
var arg = DecomposeAttr(args[0], context.SwitchToAlpha());
return(arg);
}
case "SubFloat":
{
var left = DecomposeAttr(args[0], context);
var right = DecomposeAttr(args[1], context);
return(new SubInfo(app.Range, left, right));
}
case "IntToFloat":
{
var arg = DecomposeAttr(args[0], context);
return(arg);
}
default:
throw OperationTooComplexError(app.Range);
}
}
