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      1 /*
      2  * cl_image_bo_buffer.h - cl image bo buffer
      3  *
      4  *  Copyright (c) 2015 Intel Corporation
      5  *
      6  * Licensed under the Apache License, Version 2.0 (the "License");
      7  * you may not use this file except in compliance with the License.
      8  * You may obtain a copy of the License at
      9  *
     10  *      http://www.apache.org/licenses/LICENSE-2.0
     11  *
     12  * Unless required by applicable law or agreed to in writing, software
     13  * distributed under the License is distributed on an "AS IS" BASIS,
     14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15  * See the License for the specific language governing permissions and
     16  * limitations under the License.
     17  *
     18  * Author: Wind Yuan <feng.yuan (at) intel.com>
     19  */
     20 
     21 #ifndef XCAM_CL_IMAGE_BO_BUFFER_H
     22 #define XCAM_CL_IMAGE_BO_BUFFER_H
     23 
     24 #include <xcam_std.h>
     25 #include <drm_bo_buffer.h>
     26 #include <ocl/cl_memory.h>
     27 #include <ocl/cl_context.h>
     28 
     29 namespace XCam {
     30 
     31 class CLImageBoBuffer;
     32 class CLBoBufferPool;
     33 
     34 class CLImageBoData
     35     : public DrmBoData
     36 {
     37     friend class CLBoBufferPool;
     38     friend class CLImageBoBuffer;
     39 public:
     40     virtual int get_fd ();
     41 
     42 private:
     43     explicit CLImageBoData (SmartPtr<DrmDisplay> &display, SmartPtr<CLImage> &image, drm_intel_bo *bo);
     44     XCAM_DEAD_COPY (CLImageBoData);
     45 
     46     SmartPtr<CLImage> &get_image () {
     47         return _image;
     48     }
     49 
     50 private:
     51     SmartPtr<CLImage>          _image;
     52 };
     53 
     54 class CLImageBoBuffer
     55     : public DrmBoBuffer
     56 {
     57     friend class CLBoBufferPool;
     58 public:
     59     SmartPtr<CLImage> get_cl_image ();
     60 
     61 protected:
     62     CLImageBoBuffer (const VideoBufferInfo &info, const SmartPtr<CLImageBoData> &data);
     63 
     64     //derived from SwappedBuffer
     65     virtual SmartPtr<SwappedBuffer> create_new_swap_buffer (
     66         const VideoBufferInfo &info, SmartPtr<BufferData> &data);
     67 };
     68 
     69 class CLBoBufferPool
     70     : public DrmBoBufferPool
     71 {
     72 public:
     73     explicit CLBoBufferPool (SmartPtr<DrmDisplay> &display, SmartPtr<CLContext> &context);
     74     ~CLBoBufferPool ();
     75 
     76 protected:
     77     // derived from BufferPool
     78     virtual bool fixate_video_info (VideoBufferInfo &info);
     79     virtual SmartPtr<BufferData> allocate_data (const VideoBufferInfo &buffer_info);
     80     virtual SmartPtr<BufferProxy> create_buffer_from_data (SmartPtr<BufferData> &data);
     81 
     82 private:
     83     SmartPtr<CLImageBoData> create_image_bo (const VideoBufferInfo &buffer_info);
     84     XCAM_DEAD_COPY (CLBoBufferPool);
     85 
     86 private:
     87     SmartPtr<CLContext>     _context;
     88 };
     89 
     90 
     91 };
     92 #endif // XCAM_CL_IMAGE_BO_BUFFER_H
     93