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// Copyright 2021 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ast/interpolate_attribute.h"
#include <string>
#include "src/tint/program_builder.h"
TINT_INSTANTIATE_TYPEINFO(tint::ast::InterpolateAttribute);
namespace tint::ast {
InterpolateAttribute::InterpolateAttribute(ProgramID pid,
NodeID nid,
const Source& src,
InterpolationType ty,
InterpolationSampling smpl)
: Base(pid, nid, src), type(ty), sampling(smpl) {}
InterpolateAttribute::~InterpolateAttribute() = default;
std::string InterpolateAttribute::Name() const {
return "interpolate";
}
const InterpolateAttribute* InterpolateAttribute::Clone(CloneContext* ctx) const {
// Clone arguments outside of create() call to have deterministic ordering
auto src = ctx->Clone(source);
return ctx->dst->create<InterpolateAttribute>(src, type, sampling);
}
std::ostream& operator<<(std::ostream& out, InterpolationType type) {
switch (type) {
case InterpolationType::kPerspective: {
out << "perspective";
break;
}
case InterpolationType::kLinear: {
out << "linear";
break;
}
case InterpolationType::kFlat: {
out << "flat";
break;
}
}
return out;
}
std::ostream& operator<<(std::ostream& out, InterpolationSampling sampling) {
switch (sampling) {
case InterpolationSampling::kNone: {
out << "none";
break;
}
case InterpolationSampling::kCenter: {
out << "center";
break;
}
case InterpolationSampling::kCentroid: {
out << "centroid";
break;
}
case InterpolationSampling::kSample: {
out << "sample";
break;
}
}
return out;
}
} // namespace tint::ast