1 /*
2  * Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
3  * Copyright (C) 2013 Lenny Wang
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVFILTER_UNSHARP_H
23 #define AVFILTER_UNSHARP_H
24 
25 #include "config.h"
26 
27 #include "avfilter.h"
28 #if CONFIG_OPENCL
29 #include "libavutil/opencl.h"
30 #endif
31 
32 #define MIN_MATRIX_SIZE 3
33 #define MAX_MATRIX_SIZE 63
34 
35 #if CONFIG_OPENCL
36 
37 typedef struct {
38     cl_command_queue command_queue;
39     cl_program program;
40     cl_kernel kernel_default;
41     cl_kernel kernel_luma;
42     cl_kernel kernel_chroma;
43     cl_mem cl_luma_mask;
44     cl_mem cl_chroma_mask;
45     int in_plane_size[8];
46     int out_plane_size[8];
47     int plane_num;
48     cl_mem cl_inbuf;
49     size_t cl_inbuf_size;
50     cl_mem cl_outbuf;
51     size_t cl_outbuf_size;
52     int use_fast_kernels;
53 } UnsharpOpenclContext;
54 
55 #endif
56 
57 typedef struct UnsharpFilterParam {
58     int msize_x;                             ///< matrix width
59     int msize_y;                             ///< matrix height
60     int amount;                              ///< effect amount
61     int steps_x;                             ///< horizontal step count
62     int steps_y;                             ///< vertical step count
63     int scalebits;                           ///< bits to shift pixel
64     int32_t halfscale;                       ///< amount to add to pixel
65     uint32_t *sc[MAX_MATRIX_SIZE - 1];       ///< finite state machine storage
66 } UnsharpFilterParam;
67 
68 typedef struct UnsharpContext {
69     const AVClass *class;
70     int lmsize_x, lmsize_y, cmsize_x, cmsize_y;
71     float lamount, camount;
72     UnsharpFilterParam luma;   ///< luma parameters (width, height, amount)
73     UnsharpFilterParam chroma; ///< chroma parameters (width, height, amount)
74     int hsub, vsub;
75     int opencl;
76 #if CONFIG_OPENCL
77     UnsharpOpenclContext opencl_ctx;
78 #endif
79     int (* apply_unsharp)(AVFilterContext *ctx, AVFrame *in, AVFrame *out);
80 } UnsharpContext;
81 
82 #endif /* AVFILTER_UNSHARP_H */
83