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