/* // 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__ */