55 lines
2.1 KiB
C++
55 lines
2.1 KiB
C++
// 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.
|
|
|
|
#ifndef SRC_TRANSFORM_PAD_ARRAY_ELEMENTS_H_
|
|
#define SRC_TRANSFORM_PAD_ARRAY_ELEMENTS_H_
|
|
|
|
#include "src/transform/transform.h"
|
|
|
|
namespace tint {
|
|
namespace transform {
|
|
|
|
/// PadArrayElements is a transform that replaces array types with an explicit
|
|
/// stride that is larger than the implicit stride, with an array of a new
|
|
/// structure type. This structure holds with a single field of the element
|
|
/// type, decorated with a [[size]] decoration to pad the structure to the
|
|
/// required array stride. The new array types have no explicit stride,
|
|
/// structure size is equal to the desired stride.
|
|
/// Array index expressions and constructors are also adjusted to deal with this
|
|
/// structure element type.
|
|
/// This transform helps with backends that cannot directly return arrays or use
|
|
/// them as parameters.
|
|
class PadArrayElements : public Castable<PadArrayElements, Transform> {
|
|
public:
|
|
/// Constructor
|
|
PadArrayElements();
|
|
|
|
/// Destructor
|
|
~PadArrayElements() override;
|
|
|
|
protected:
|
|
/// Runs the transform using the CloneContext built for transforming a
|
|
/// program. Run() is responsible for calling Clone() on the CloneContext.
|
|
/// @param ctx the CloneContext primed with the input program and
|
|
/// ProgramBuilder
|
|
/// @param inputs optional extra transform-specific input data
|
|
/// @param outputs optional extra transform-specific output data
|
|
void Run(CloneContext& ctx, const DataMap& inputs, DataMap& outputs) override;
|
|
};
|
|
|
|
} // namespace transform
|
|
} // namespace tint
|
|
|
|
#endif // SRC_TRANSFORM_PAD_ARRAY_ELEMENTS_H_
|