109 lines
2.7 KiB
C++
109 lines
2.7 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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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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*/
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#ifndef ANDROID_DRM_PROPERTY_H_
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#define ANDROID_DRM_PROPERTY_H_
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#include <xf86drmMode.h>
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#include <cstdint>
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#include <map>
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#include <string>
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#include <vector>
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namespace android {
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enum DrmPropertyType {
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DRM_PROPERTY_TYPE_INT,
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DRM_PROPERTY_TYPE_ENUM,
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DRM_PROPERTY_TYPE_OBJECT,
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DRM_PROPERTY_TYPE_BLOB,
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DRM_PROPERTY_TYPE_BITMASK,
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DRM_PROPERTY_TYPE_INVALID,
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};
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class DrmProperty {
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public:
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DrmProperty() = default;
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DrmProperty(uint32_t obj_id, drmModePropertyPtr p, uint64_t value);
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DrmProperty(const DrmProperty &) = delete;
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DrmProperty &operator=(const DrmProperty &) = delete;
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auto Init(uint32_t obj_id, drmModePropertyPtr p, uint64_t value) -> void;
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std::tuple<uint64_t, int> GetEnumValueWithName(const std::string &name) const;
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uint32_t id() const;
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std::string name() const;
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std::tuple<int, uint64_t> value() const;
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bool is_immutable() const;
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bool is_range() const;
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std::tuple<int, uint64_t> range_min() const;
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std::tuple<int, uint64_t> range_max() const;
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[[nodiscard]] auto AtomicSet(drmModeAtomicReq &pset, uint64_t value) const
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-> bool;
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template <class E>
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auto AddEnumToMap(const std::string &name, E key, std::map<E, uint64_t> &map)
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-> bool;
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explicit operator bool() const {
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return id_ != 0;
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}
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private:
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class DrmPropertyEnum {
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public:
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explicit DrmPropertyEnum(drm_mode_property_enum *e);
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~DrmPropertyEnum() = default;
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uint64_t value_;
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std::string name_;
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};
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uint32_t obj_id_ = 0;
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uint32_t id_ = 0;
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DrmPropertyType type_ = DRM_PROPERTY_TYPE_INVALID;
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uint32_t flags_ = 0;
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std::string name_;
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uint64_t value_ = 0;
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std::vector<uint64_t> values_;
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std::vector<DrmPropertyEnum> enums_;
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std::vector<uint32_t> blob_ids_;
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};
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template <class E>
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auto DrmProperty::AddEnumToMap(const std::string &name, E key,
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std::map<E, uint64_t> &map) -> bool {
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uint64_t enum_value = UINT64_MAX;
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int err = 0;
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std::tie(enum_value, err) = GetEnumValueWithName(name);
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if (err == 0) {
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map[key] = enum_value;
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return true;
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}
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return false;
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}
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} // namespace android
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#endif // ANDROID_DRM_PROPERTY_H_
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