1 /*
2  * Copyright (c) 2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #ifndef DRM_ALLOCATOR_H
16 #define DRM_ALLOCATOR_H
17 #include <string>
18 #include "allocator.h"
19 namespace OHOS {
20 namespace HDI {
21 namespace DISPLAY {
22 class DrmAllocator : public Allocator {
23 public:
24     int32_t Init() override;
25     int32_t Allocate(const BufferInfo &bufferInfo, BufferHandle &handle) override;
26     ~DrmAllocator() override;
27 private:
28     static constexpr const char* FILE_PATH = "/dev/dri/card0";
29     uint64_t GetPhysicalAddr(int primeFd);
30     int32_t drmFd_ = -1;
31 };
32 }
33 }
34 }
35 #endif // DRM_ALLOCATOR_H