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/*
* Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFILTER_UNSHARP_H
#define AVFILTER_UNSHARP_H
#include "config.h"
#include "avfilter.h"
#if CONFIG_OPENCL
#include "libavutil/opencl.h"
#endif
#define MIN_MATRIX_SIZE 3
#define MAX_MATRIX_SIZE 63
/* right-shift and round-up */
#define SHIFTUP(x,shift) (-((-(x))>>(shift)))
#if CONFIG_OPENCL
typedef struct {
cl_mem cl_luma_mask;
cl_mem cl_chroma_mask;
int in_plane_size[8];
int out_plane_size[8];
int plane_num;
cl_mem cl_inbuf;
size_t cl_inbuf_size;
cl_mem cl_outbuf;
size_t cl_outbuf_size;
AVOpenCLKernelEnv kernel_env;
} UnsharpOpenclContext;
#endif
typedef struct UnsharpFilterParam {
int msize_x; ///< matrix width
int msize_y; ///< matrix height
int amount; ///< effect amount
int steps_x; ///< horizontal step count
int steps_y; ///< vertical step count
int scalebits; ///< bits to shift pixel
int32_t halfscale; ///< amount to add to pixel
uint32_t *sc[MAX_MATRIX_SIZE - 1]; ///< finite state machine storage
} UnsharpFilterParam;
typedef struct {
const AVClass *class;
int lmsize_x, lmsize_y, cmsize_x, cmsize_y;
float lamount, camount;
UnsharpFilterParam luma; ///< luma parameters (width, height, amount)
UnsharpFilterParam chroma; ///< chroma parameters (width, height, amount)
int hsub, vsub;
int opencl;
#if CONFIG_OPENCL
UnsharpOpenclContext opencl_ctx;
#endif
int (* apply_unsharp)(AVFilterContext *ctx, AVFrame *in, AVFrame *out);
} UnsharpContext;
#endif /* AVFILTER_UNSHARP_H */
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