blob: bb4edf68b515f666a2e1f3a15ef38c9ddc0651ca [file] [log] [blame]
/*
* cl_image_scaler.h - CL image scaler
*
* Copyright (c) 2015 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: Zong Wei <wei.zong@intel.com>
*/
#ifndef XCAM_CL_IMAGE_SCALER_H
#define XCAM_CL_IMAGE_SCALER_H
#include <xcam_std.h>
#include <ocl/cl_image_handler.h>
#include <ocl/cl_memory.h>
#include <stats_callback_interface.h>
namespace XCam {
enum CLImageScalerMemoryLayout {
CL_IMAGE_SCALER_NV12_Y = 0,
CL_IMAGE_SCALER_NV12_UV = 1,
CL_IMAGE_SCALER_RGBA = 2,
};
#define XCAM_CL_IMAGE_SCALER_KERNEL_LOCAL_WORK_SIZE0 8
#define XCAM_CL_IMAGE_SCALER_KERNEL_LOCAL_WORK_SIZE1 4
class CLImageScaler;
class CLScalerKernel
: public CLImageKernel
{
public:
explicit CLScalerKernel (
const SmartPtr<CLContext> &context, CLImageScalerMemoryLayout mem_layout);
public:
CLImageScalerMemoryLayout get_mem_layout () const {
return _mem_layout;
};
protected:
virtual XCamReturn prepare_arguments (CLArgList &args, CLWorkSize &work_size);
//new virtual functions
virtual SmartPtr<VideoBuffer> get_input_buffer () = 0;
virtual SmartPtr<VideoBuffer> get_output_buffer () = 0;
protected:
CLImageScalerMemoryLayout _mem_layout;
};
class CLImageScalerKernel
: public CLScalerKernel
{
public:
explicit CLImageScalerKernel (
const SmartPtr<CLContext> &context, CLImageScalerMemoryLayout mem_layout, SmartPtr<CLImageScaler> &scaler);
protected:
virtual SmartPtr<VideoBuffer> get_input_buffer ();
virtual SmartPtr<VideoBuffer> get_output_buffer ();
private:
XCAM_DEAD_COPY (CLImageScalerKernel);
private:
SmartPtr<CLImageScaler> _scaler;
};
class CLImageScaler
: public CLImageHandler
{
friend class CLImageScalerKernel;
public:
explicit CLImageScaler (const SmartPtr<CLContext> &context);
void set_buffer_callback (SmartPtr<StatsCallback> &callback) {
_scaler_callback = callback;
}
bool set_scaler_factor (const double h_factor, const double v_factor);
bool get_scaler_factor (double &h_factor, double &v_factor) const;
SmartPtr<VideoBuffer> &get_scaler_buf () {
return _scaler_buf;
};
void emit_stop ();
protected:
virtual XCamReturn prepare_output_buf (SmartPtr<VideoBuffer> &input, SmartPtr<VideoBuffer> &output);
virtual XCamReturn execute_done (SmartPtr<VideoBuffer> &output);
private:
XCamReturn prepare_scaler_buf (const VideoBufferInfo &video_info, SmartPtr<VideoBuffer> &output);
XCamReturn post_buffer (const SmartPtr<VideoBuffer> &buffer);
private:
double _h_scaler_factor;
double _v_scaler_factor;
SmartPtr<BufferPool> _scaler_buf_pool;
SmartPtr<VideoBuffer> _scaler_buf;
SmartPtr<StatsCallback> _scaler_callback;
};
SmartPtr<CLImageHandler>
create_cl_image_scaler_handler (const SmartPtr<CLContext> &context, uint32_t format);
};
#endif // XCAM_CL_IMAGE_SCALER_H