| /* |
| // Copyright (c) 2014 Intel Corporation |
| // |
| // 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 BUFFERMAPPER_H__ |
| #define BUFFERMAPPER_H__ |
| |
| #include <DataBuffer.h> |
| |
| namespace android { |
| namespace intel { |
| |
| class BufferMapper : public DataBuffer { |
| public: |
| BufferMapper(DataBuffer& buffer) |
| : DataBuffer(buffer), |
| mRefCount(0) |
| { |
| } |
| virtual ~BufferMapper() {} |
| public: |
| int incRef() |
| { |
| mRefCount++; |
| return mRefCount; |
| } |
| int decRef() |
| { |
| mRefCount--; |
| return mRefCount; |
| } |
| |
| int getRef() const |
| { |
| return mRefCount; |
| } |
| |
| // map the given buffer into both DC & CPU MMU |
| virtual bool map() = 0; |
| // unmap the give buffer from both DC & CPU MMU |
| virtual bool unmap() = 0; |
| |
| // return gtt page offset |
| virtual uint32_t getGttOffsetInPage(int subIndex) const = 0; |
| virtual void* getCpuAddress(int subIndex) const = 0; |
| virtual uint32_t getSize(int subIndex) const = 0; |
| virtual uint32_t getKHandle(int subIndex) = 0; |
| virtual uint32_t getFbHandle(int subIndex) = 0; |
| virtual void putFbHandle() = 0; |
| private: |
| int mRefCount; |
| }; |
| |
| } // namespace intel |
| } // namespace android |
| |
| #endif /* BUFFERMAPPER_H__ */ |