| /* |
| * Copyright (C) 2020 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ANDROID_PLATFORM_DRM_GENERIC_H_ |
| #define ANDROID_PLATFORM_DRM_GENERIC_H_ |
| |
| #include <drm/drm_fourcc.h> |
| #include <hardware/gralloc.h> |
| |
| #include <map> |
| |
| #include "drm/DrmDevice.h" |
| #include "drmhwcgralloc.h" |
| |
| #ifndef DRM_FORMAT_INVALID |
| #define DRM_FORMAT_INVALID 0 |
| #endif |
| |
| namespace android { |
| |
| class Importer { |
| public: |
| virtual ~Importer() { |
| } |
| |
| // Imports the buffer referred to by handle into bo. |
| // |
| // Note: This can be called from a different thread than ReleaseBuffer. The |
| // implementation is responsible for ensuring thread safety. |
| virtual int ImportBuffer(hwc_drm_bo_t *bo) = 0; |
| |
| // Releases the buffer object (ie: does the inverse of ImportBuffer) |
| // |
| // Note: This can be called from a different thread than ImportBuffer. The |
| // implementation is responsible for ensuring thread safety. |
| virtual int ReleaseBuffer(hwc_drm_bo_t *bo) = 0; |
| }; |
| |
| class DrmGenericImporter : public Importer { |
| public: |
| DrmGenericImporter(DrmDevice *drm); |
| ~DrmGenericImporter() override; |
| |
| int ImportBuffer(hwc_drm_bo_t *bo) override; |
| int ReleaseBuffer(hwc_drm_bo_t *bo) override; |
| int ImportHandle(uint32_t gem_handle); |
| int ReleaseHandle(uint32_t gem_handle); |
| |
| protected: |
| DrmDevice *drm_; |
| |
| private: |
| int CloseHandle(uint32_t gem_handle); |
| std::map<uint32_t, int> gem_refcount_; |
| bool has_modifier_support_; |
| }; |
| |
| } // namespace android |
| |
| #endif |