2017-11-30 22:03:06 +00:00
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// Copyright (c) 2017 Google Inc.
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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 LIBSPIRV_OPT_FEATURE_MANAGER_H_
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#define LIBSPIRV_OPT_FEATURE_MANAGER_H_
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2017-12-19 19:18:13 +00:00
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#include "assembly_grammar.h"
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2017-11-30 22:03:06 +00:00
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#include "extensions.h"
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#include "module.h"
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namespace spvtools {
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namespace opt {
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// Tracks features enabled by a module. The IRContext has a FeatureManager.
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class FeatureManager {
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public:
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2017-12-19 19:18:13 +00:00
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explicit FeatureManager(const libspirv::AssemblyGrammar& grammar)
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: grammar_(grammar) {}
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2017-11-30 22:03:06 +00:00
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// Returns true if |ext| is an enabled extension in the module.
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bool HasExtension(libspirv::Extension ext) const {
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return extensions_.Contains(ext);
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}
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2017-12-19 19:18:13 +00:00
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// Returns true if |cap| is an enabled capability in the module.
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bool HasCapability(SpvCapability cap) const {
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return capabilities_.Contains(cap);
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}
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// Analyzes |module| and records enabled extensions and capabilities.
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2017-11-30 22:03:06 +00:00
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void Analyze(ir::Module* module);
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2018-02-02 23:57:39 +00:00
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libspirv::CapabilitySet* GetCapabilities() { return &capabilities_; }
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const libspirv::CapabilitySet* GetCapabilities() const {
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return &capabilities_;
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}
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2017-11-30 22:03:06 +00:00
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private:
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2017-12-19 19:18:13 +00:00
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// Analyzes |module| and records enabled extensions.
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void AddExtensions(ir::Module* module);
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// Adds the given |capability| and all implied capabilities into the current
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// FeatureManager.
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void AddCapability(SpvCapability capability);
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// Analyzes |module| and records enabled capabilities.
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void AddCapabilities(ir::Module* module);
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// Auxiliary object for querying SPIR-V grammar facts.
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const libspirv::AssemblyGrammar& grammar_;
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2017-11-30 22:03:06 +00:00
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// The enabled extensions.
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libspirv::ExtensionSet extensions_;
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2017-12-19 19:18:13 +00:00
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// The enabled capabilities.
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libspirv::CapabilitySet capabilities_;
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2017-11-30 22:03:06 +00:00
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};
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} // namespace opt
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} // namespace spvtools
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#endif // LIBSPIRV_OPT_FEATURE_MANAGER_H_
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