| // Copyright 2020 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/ast/type/vector_type.h" |
| |
| #include <assert.h> |
| #include <cmath> |
| |
| #include "src/ast/clone_context.h" |
| #include "src/ast/module.h" |
| |
| TINT_INSTANTIATE_CLASS_ID(tint::ast::type::Vector); |
| |
| namespace tint { |
| namespace ast { |
| namespace type { |
| |
| Vector::Vector(Type* subtype, uint32_t size) : subtype_(subtype), size_(size) { |
| assert(size_ > 1); |
| assert(size_ < 5); |
| } |
| |
| Vector::Vector(Vector&&) = default; |
| |
| Vector::~Vector() = default; |
| |
| std::string Vector::type_name() const { |
| return "__vec_" + std::to_string(size_) + subtype_->type_name(); |
| } |
| |
| uint64_t Vector::MinBufferBindingSize(MemoryLayout mem_layout) const { |
| return size_ * subtype_->MinBufferBindingSize(mem_layout); |
| } |
| |
| uint64_t Vector::BaseAlignment(MemoryLayout mem_layout) const { |
| if (size_ == 2) { |
| return 2 * subtype_->BaseAlignment(mem_layout); |
| } else if (size_ == 3 || size_ == 4) { |
| return 4 * subtype_->BaseAlignment(mem_layout); |
| } |
| |
| return 0; // vectors are only supposed to have 2, 3, or 4 elements. |
| } |
| |
| Vector* Vector::Clone(CloneContext* ctx) const { |
| return ctx->mod->create<Vector>(ctx->Clone(subtype_), size_); |
| } |
| |
| } // namespace type |
| } // namespace ast |
| } // namespace tint |