/*
|
* 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
|
