mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-08-03 02:35:55 +00:00
8626c9ee87
This CL moves the constants into the constant namespace. Bug: tint:1718 Change-Id: Id8f98ca6c16085136c06d98bbd8b755b36cb2409 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/114161 Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Dan Sinclair <dsinclair@chromium.org> Reviewed-by: Ben Clayton <bclayton@google.com>
81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
// Copyright 2022 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.
|
|
|
|
#ifndef SRC_TINT_CONSTANT_COMPOSITE_H_
|
|
#define SRC_TINT_CONSTANT_COMPOSITE_H_
|
|
|
|
#include "src/tint/castable.h"
|
|
#include "src/tint/constant/constant.h"
|
|
#include "src/tint/number.h"
|
|
#include "src/tint/type/type.h"
|
|
#include "src/tint/utils/hash.h"
|
|
#include "src/tint/utils/vector.h"
|
|
|
|
namespace tint::constant {
|
|
|
|
/// Composite holds a number of mixed child Constant values.
|
|
/// Composite may be of a vector, matrix or array type.
|
|
/// If each element is the same type and value, then a Splat would be a more efficient constant
|
|
/// implementation. Use CreateComposite() to create the appropriate Constant type.
|
|
/// Composite implements the Constant interface.
|
|
class Composite : public Castable<Composite, constant::Constant> {
|
|
public:
|
|
/// Constructor
|
|
/// @param t the compsite type
|
|
/// @param els the composite elements
|
|
/// @param all_0 true if all elements are 0
|
|
/// @param any_0 true if any element is 0
|
|
Composite(const type::Type* t,
|
|
utils::VectorRef<const constant::Constant*> els,
|
|
bool all_0,
|
|
bool any_0);
|
|
~Composite() override;
|
|
|
|
const type::Type* Type() const override { return type; }
|
|
|
|
std::variant<std::monostate, AInt, AFloat> Value() const override { return {}; }
|
|
const constant::Constant* Index(size_t i) const override {
|
|
return i < elements.Length() ? elements[i] : nullptr;
|
|
}
|
|
|
|
bool AllZero() const override { return all_zero; }
|
|
bool AnyZero() const override { return any_zero; }
|
|
bool AllEqual() const override { return false; }
|
|
size_t Hash() const override { return hash; }
|
|
|
|
/// The composite type
|
|
type::Type const* const type;
|
|
/// The composite elements
|
|
const utils::Vector<const constant::Constant*, 8> elements;
|
|
/// True if all elements are zero
|
|
const bool all_zero;
|
|
/// True if any element is zero
|
|
const bool any_zero;
|
|
/// The hash of the composite
|
|
const size_t hash;
|
|
|
|
private:
|
|
size_t CalcHash() {
|
|
auto h = utils::Hash(type, all_zero, any_zero);
|
|
for (auto* el : elements) {
|
|
h = utils::HashCombine(h, el->Hash());
|
|
}
|
|
return h;
|
|
}
|
|
};
|
|
|
|
} // namespace tint::constant
|
|
|
|
#endif // SRC_TINT_CONSTANT_COMPOSITE_H_
|