82 lines
2.8 KiB
C++
82 lines
2.8 KiB
C++
// Copyright 2021 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_TRANSFORM_BINDING_REMAPPER_H_
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#define SRC_TRANSFORM_BINDING_REMAPPER_H_
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#include <unordered_map>
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#include "src/ast/access.h"
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#include "src/sem/binding_point.h"
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#include "src/transform/transform.h"
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namespace tint {
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namespace transform {
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/// BindingPoint is an alias to sem::BindingPoint
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using BindingPoint = sem::BindingPoint;
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/// BindingRemapper is a transform used to remap resource binding points and
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/// access controls.
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class BindingRemapper : public Transform {
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public:
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/// BindingPoints is a map of old binding point to new binding point
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using BindingPoints = std::unordered_map<BindingPoint, BindingPoint>;
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/// AccessControls is a map of old binding point to new access control
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using AccessControls = std::unordered_map<BindingPoint, ast::Access>;
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/// Remappings is consumed by the BindingRemapper transform.
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/// Data holds information about shader usage and constant buffer offsets.
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struct Remappings : public Castable<Data, transform::Data> {
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/// Constructor
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/// @param bp a map of new binding points
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/// @param ac a map of new access controls
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/// @param may_collide If true, then validation will be disabled for
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/// binding point collisions generated by this transform
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Remappings(BindingPoints bp, AccessControls ac, bool may_collide = true);
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/// Copy constructor
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Remappings(const Remappings&);
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/// Destructor
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~Remappings() override;
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/// A map of old binding point to new binding point
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BindingPoints const binding_points;
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/// A map of old binding point to new access controls
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AccessControls const access_controls;
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/// If true, then validation will be disabled for binding point collisions
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/// generated by this transform
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bool const allow_collisions;
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};
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/// Constructor
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BindingRemapper();
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~BindingRemapper() override;
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/// Runs the transform on `program`, returning the transformation result.
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/// @param program the source program to transform
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/// @param data optional extra transform-specific input data
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/// @returns the transformation result
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Output Run(const Program* program, const DataMap& data = {}) override;
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};
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} // namespace transform
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} // namespace tint
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#endif // SRC_TRANSFORM_BINDING_REMAPPER_H_
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