1/*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
19#include <float.h>
20#include <string.h>
21#include "checkasm.h"
22#include "libavfilter/vf_gblur_init.h"
23
24#define WIDTH 256
25#define HEIGHT 256
26#define PIXELS (WIDTH * HEIGHT)
27#define BUF_SIZE (PIXELS * 4)
28
29#define randomize_buffers(buf, size)             \
30    do {                                         \
31        int j;                                   \
32        float *tmp_buf = (float *)buf;           \
33        for (j = 0; j < size; j++)               \
34            tmp_buf[j] = (float)(rnd() & 0xFF); \
35    } while (0)
36
37static void check_horiz_slice(float *dst_ref, float *dst_new, float *localbuf)
38{
39    int steps = 2;
40    float nu = 0.101f;
41    float bscale = 1.112f;
42
43    declare_func(void, float *dst, int w, int h, int steps, float nu, float bscale, float *localbuf);
44    call_ref(dst_ref, WIDTH, HEIGHT, steps, nu, bscale, localbuf);
45    call_new(dst_new, WIDTH, HEIGHT, steps, nu, bscale, localbuf);
46    if (!float_near_abs_eps_array(dst_ref, dst_new, 0.01f, PIXELS)) {
47         fail();
48    }
49    bench_new(dst_new, WIDTH, HEIGHT, 1, nu, bscale, localbuf);
50}
51
52static void check_verti_slice(float *dst_ref, float *dst_new)
53{
54    int steps = 2;
55    float nu = 0.101f;
56    float bscale = 1.112f;
57
58    declare_func(void, float *buffer, int width, int height, int column_begin,
59                int column_end, int steps, float nu, float bscale);
60    call_ref(dst_ref, WIDTH, HEIGHT, 0, WIDTH, steps, nu, bscale);
61    call_new(dst_new, WIDTH, HEIGHT, 0, WIDTH, steps, nu, bscale);
62    if (!float_near_abs_eps_array(dst_ref, dst_new, 0.01f, PIXELS)) {
63         fail();
64    }
65    bench_new(dst_new, WIDTH, HEIGHT, 0, WIDTH, 1, nu, bscale);
66}
67
68static void check_postscale_slice(float *dst_ref, float *dst_new)
69{
70    float postscale = 0.0603f;
71
72    declare_func(void, float *dst, int len, float postscale, float min, float max);
73    call_ref(dst_ref, PIXELS, postscale, -FLT_MAX, FLT_MAX);
74    call_new(dst_new, PIXELS, postscale, -FLT_MAX, FLT_MAX);
75    if (!float_near_abs_eps_array(dst_ref, dst_new, FLT_EPSILON, PIXELS)) {
76        fail();
77    }
78    bench_new(dst_new, PIXELS, postscale, -FLT_MAX, FLT_MAX);
79}
80
81void checkasm_check_vf_gblur(void)
82{
83    float *dst_ref = av_malloc(BUF_SIZE);
84    float *dst_new = av_malloc(BUF_SIZE);
85    GBlurContext s;
86
87    randomize_buffers(dst_ref, PIXELS);
88    memcpy(dst_new, dst_ref, BUF_SIZE);
89
90    s.planewidth[0] = WIDTH;
91    s.planeheight[0] = HEIGHT;
92    ff_gblur_init(&s);
93
94    if (check_func(s.horiz_slice, "horiz_slice")) {
95        check_horiz_slice(dst_ref, dst_new, s.localbuf);
96    }
97    report("horiz_slice");
98
99    randomize_buffers(dst_ref, PIXELS);
100    memcpy(dst_new, dst_ref, BUF_SIZE);
101    if (check_func(s.postscale_slice, "postscale_slice")) {
102        check_postscale_slice(dst_ref, dst_new);
103    }
104    report("postscale_slice");
105
106    randomize_buffers(dst_ref, PIXELS);
107    memcpy(dst_new, dst_ref, BUF_SIZE);
108    if (check_func(s.verti_slice, "verti_slice")) {
109        check_verti_slice(dst_ref, dst_new);
110    }
111    report("verti_slice");
112
113    if (s.localbuf)
114        av_free(s.localbuf);
115
116    av_freep(&dst_ref);
117    av_freep(&dst_new);
118}
119