modules/ocl/cl_wire_frame_handler.h

/*
 * cl_wire_frame_handler.h - CL wire frame handler
 *
 *  Copyright (c) 2016 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.
 *
 * Author: Yinhang Liu <yinhangx.liu@intel.com>
 */

#ifndef XCAM_CL_WIRE_FRAME_H
#define XCAM_CL_WIRE_FRAME_H

#include "ocl/cl_image_handler.h"

#define XCAM_WIRE_FRAME_MAX_COUNT 160

namespace XCam {

typedef struct _CLWireFrame {
    uint32_t pos_x;
    uint32_t pos_y;
    uint32_t width;
    uint32_t height;
} CLWireFrame;

class CLWireFrameImageHandler;

class CLWireFrameImageKernel
    : public CLImageKernel
{
public:
    explicit CLWireFrameImageKernel (
        const SmartPtr<CLContext> &context,
        const SmartPtr<CLWireFrameImageHandler> &handler,
        const char *name);
    ~CLWireFrameImageKernel ();

protected:
    virtual XCamReturn prepare_arguments (
        CLArgList &args, CLWorkSize &work_size);

private:
    SmartPtr<CLWireFrameImageHandler>        _handler;
    uint32_t                                 _wire_frames_coords_num;
    uint32_t                                 *_wire_frames_coords;
};

class CLWireFrameImageHandler
    : public CLImageHandler
{
public:
    explicit CLWireFrameImageHandler (const SmartPtr<CLContext> &context, const char *name);
    bool set_wire_frame_kernel (SmartPtr<CLWireFrameImageKernel> &kernel);
    bool set_wire_frame_config (const XCamFDResult *config, double scaler_factor = 1.0);

    bool check_wire_frames_validity (uint32_t image_width, uint32_t image_height);
    uint32_t get_border_coordinates_num ();
    bool get_border_coordinates (uint32_t *coords);

protected:
    virtual XCamReturn prepare_output_buf (SmartPtr<VideoBuffer> &input, SmartPtr<VideoBuffer> &output);

private:
    XCAM_DEAD_COPY (CLWireFrameImageHandler);
    SmartPtr<CLWireFrameImageKernel>         _wire_frame_kernel;

    uint32_t                                 _wire_frames_num;
    CLWireFrame                              _wire_frames [XCAM_WIRE_FRAME_MAX_COUNT];
};

SmartPtr<CLImageHandler>
create_cl_wire_frame_image_handler (const SmartPtr<CLContext> &context);

};

#endif // XCAM_CL_WIRE_FRAME_H