filter_base.hpp

#ifndef DEWOBBLE_FILTER_BASE_HPP
#define DEWOBBLE_FILTER_BASE_HPP
 
#include <CL/opencl.hpp>
#include <opencv2/core.hpp>
#include <queue>
 
#include "filter_config.hpp"
 
namespace dewobble
{
 
class FilterBase
{
    FilterConfig m_config;
    std::queue<cl_mem> m_preallocated_input_buffers;
    std::queue<cl_mem> m_preallocated_output_buffers;
    cl_mem get_frame_buffer(
        std::queue<cl_mem> &preallocated_buffers,
        cl_mem_flags flags);
    void free_preallocated_buffers(std::queue<cl_mem> &preallocated_buffers);
    void release_frame_buffer(
        std::queue<cl_mem> &preallocated_buffers,
        cl_mem *output_buffer);
 
  protected:
    virtual cl_mem get_output_frame_buffer();
 
  public:
    FilterBase(FilterConfig config);
    virtual ~FilterBase();
    virtual cl_mem get_input_frame_buffer();
 
    virtual void release_input_frame_buffer(cl_mem *input_buffer);
 
    virtual void push_frame(cl_mem input_buffer, void *extra) = 0;
 
    virtual void end_input() = 0;
 
    virtual bool frame_ready() = 0;
 
    virtual void release_output_frame_buffer(cl_mem *output_buffer);
 
    virtual void
    pull_frame(cl_mem *output_buffer, cl_mem *input_buffer, void **extra) = 0;
};
} // namespace dewobble
 
#endif // DEWOBBLE_FILTER_BASE_HPP