| // 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_TYPE_MATRIX_H_ |
| #define SRC_TINT_TYPE_MATRIX_H_ |
| |
| #include <string> |
| |
| #include "src/tint/type/type.h" |
| |
| // Forward declarations |
| namespace tint::type { |
| class Vector; |
| } // namespace tint::type |
| |
| namespace tint::type { |
| |
| /// A matrix type |
| class Matrix final : public Castable<Matrix, Type> { |
| public: |
| /// Constructor |
| /// @param column_type the type of a column of the matrix |
| /// @param columns the number of columns in the matrix |
| Matrix(const Vector* column_type, uint32_t columns); |
| /// Move constructor |
| Matrix(Matrix&&); |
| ~Matrix() override; |
| |
| /// @returns a hash of the type. |
| size_t Hash() const override; |
| |
| /// @param other the other type to compare against |
| /// @returns true if the this type is equal to the given type |
| bool Equals(const Type& other) const override; |
| |
| /// @returns the type of the matrix |
| const Type* type() const { return subtype_; } |
| /// @returns the number of rows in the matrix |
| uint32_t rows() const { return rows_; } |
| /// @returns the number of columns in the matrix |
| uint32_t columns() const { return columns_; } |
| |
| /// @returns the column-vector type of the matrix |
| const Vector* ColumnType() const { return column_type_; } |
| |
| /// @param symbols the program's symbol table |
| /// @returns the name for this type that closely resembles how it would be |
| /// declared in WGSL. |
| std::string FriendlyName(const SymbolTable& symbols) const override; |
| |
| /// @returns the size in bytes of the type. This may include tail padding. |
| uint32_t Size() const override; |
| |
| /// @returns the alignment in bytes of the type. This may include tail |
| /// padding. |
| uint32_t Align() const override; |
| |
| /// @returns the number of bytes between columns of the matrix |
| uint32_t ColumnStride() const; |
| |
| private: |
| const Type* const subtype_; |
| const Vector* const column_type_; |
| const uint32_t rows_; |
| const uint32_t columns_; |
| }; |
| |
| } // namespace tint::type |
| |
| #endif // SRC_TINT_TYPE_MATRIX_H_ |