tests/checkasm/llviddsp.c

   1 /*
   2  * Copyright (c) 2016 Alexandra Hájková
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include <string.h>
  22
  23 #include "libavutil/common.h"
  24 #include "libavutil/intreadwrite.h"
  25 #include "libavutil/mem.h"
  26
  27 #include "libavcodec/lossless_videodsp.h"
  28
  29 #include "checkasm.h"
  30
  31 #define randomize_buffers(buf, size)     \
  32     do {                                 \
  33         int j;                           \
  34         uint8_t *tmp_buf = (uint8_t *)buf;\
  35         for (j = 0; j < size; j++)       \
  36             tmp_buf[j] = rnd() & 0xFF;       \
  37     } while (0)
  38
  39 #define init_buffer(a0, a1, type, width)\
  40     if (!a0 || !a1)\
  41         fail();\
  42     randomize_buffers(a0, width * sizeof(type));\
  43     memcpy(a1, a0, width*sizeof(type));\
  44
  45 static void check_add_bytes(LLVidDSPContext *c, int width)
  46 {
  47     uint8_t *dst0 = av_mallocz(width);
  48     uint8_t *dst1 = av_mallocz(width);
  49     uint8_t *src0 = av_calloc(width, sizeof(*src0));
  50     uint8_t *src1 = av_calloc(width, sizeof(*src1));
  51     declare_func(void, uint8_t *dst, uint8_t *src, ptrdiff_t w);
  52
  53     init_buffer(src0, src1, uint8_t, width);
  54
  55     if (!dst0 || !dst1)
  56         fail();
  57
  58
  59     if (check_func(c->add_bytes, "add_bytes")) {
  60         call_ref(dst0, src0, width);
  61         call_new(dst1, src1, width);
  62         if (memcmp(dst0, dst1, width))
  63             fail();
  64         bench_new(dst1, src1, width);
  65     }
  66
  67     av_free(src0);
  68     av_free(src1);
  69     av_free(dst0);
  70     av_free(dst1);
  71 }
  72
  73 static void check_add_median_pred(LLVidDSPContext *c, int width) {
  74     int a0, a1, b0, b1;
  75     uint8_t *dst0 = av_mallocz(width);
  76     uint8_t *dst1 = av_mallocz(width);
  77     uint8_t *src0  = av_calloc(width, sizeof(*src0));
  78     uint8_t *src1  = av_calloc(width, sizeof(*src1));
  79     uint8_t *diff0 = av_calloc(width, sizeof(*diff0));
  80     uint8_t *diff1 = av_calloc(width, sizeof(*diff1));
  81     declare_func(void, uint8_t *dst, const uint8_t *src1,
  82                  const uint8_t *diff, ptrdiff_t w,
  83                  int *left, int *left_top);
  84
  85     init_buffer(src0, src1, uint8_t, width);
  86     init_buffer(diff0, diff1, uint8_t, width);
  87
  88     a0 = rnd() & 0xFF;
  89     b0 = rnd() & 0xFF;
  90     a1 = a0;
  91     b1 = b0;
  92
  93
  94     if (check_func(c->add_median_pred, "add_median_pred")) {
  95         call_ref(dst0, src0, diff0, width, &a0, &b0);
  96         call_new(dst1, src1, diff1, width, &a1, &b1);
  97         if (memcmp(dst0, dst1, width) || (a0 != a1) || (b0 != b1))
  98             fail();
  99         bench_new(dst1, src1, diff1, width, &a1, &b1);
 100     }
 101
 102     av_free(src0);
 103     av_free(src1);
 104     av_free(diff0);
 105     av_free(diff1);
 106     av_free(dst0);
 107     av_free(dst1);
 108 }
 109
 110 static void check_add_left_pred(LLVidDSPContext *c, int width, int acc, const char * report)
 111 {
 112     int res0, res1;
 113     uint8_t *dst0 = av_mallocz(width);
 114     uint8_t *dst1 = av_mallocz(width);
 115     uint8_t *src0 = av_calloc(width, sizeof(*src0));
 116     uint8_t *src1 = av_calloc(width, sizeof(*src1));
 117     declare_func(int, uint8_t *dst, const uint8_t *src, ptrdiff_t w, int acc);
 118
 119     init_buffer(src0, src1, uint8_t, width);
 120
 121     if (!dst0 || !dst1)
 122         fail();
 123
 124     if (check_func(c->add_left_pred, "%s", report)) {
 125         res0 = call_ref(dst0, src0, width, acc);
 126         res1 = call_new(dst1, src1, width, acc);
 127         if ((res0 & 0xFF) != (res1 & 0xFF)||\
 128             memcmp(dst0, dst1, width))
 129             fail();
 130         bench_new(dst1, src1, width, acc);
 131     }
 132
 133     av_free(src0);
 134     av_free(src1);
 135     av_free(dst0);
 136     av_free(dst1);
 137 }
 138
 139 static void check_add_left_pred_16(LLVidDSPContext *c, unsigned mask, int width, unsigned acc, const char * report)
 140 {
 141     int res0, res1;
 142     uint16_t *dst0 = av_calloc(width, sizeof(*dst0));
 143     uint16_t *dst1 = av_calloc(width, sizeof(*dst1));
 144     uint16_t *src0 = av_calloc(width, sizeof(*src0));
 145     uint16_t *src1 = av_calloc(width, sizeof(*src1));
 146     declare_func(int, uint16_t *dst, const uint16_t *src, unsigned mask, ptrdiff_t w, unsigned acc);
 147
 148     init_buffer(src0, src1, uint16_t, width);
 149
 150     if (!dst0 || !dst1)
 151         fail();
 152
 153     if (check_func(c->add_left_pred_int16, "%s", report)) {
 154         res0 = call_ref(dst0, src0, mask, width, acc);
 155         res1 = call_new(dst1, src1, mask, width, acc);
 156         if ((res0 &0xFFFF) != (res1 &0xFFFF)||\
 157             memcmp(dst0, dst1, width))
 158             fail();
 159         bench_new(dst1, src1, mask, width, acc);
 160     }
 161
 162     av_free(src0);
 163     av_free(src1);
 164     av_free(dst0);
 165     av_free(dst1);
 166 }
 167
 168 static void check_add_gradient_pred(LLVidDSPContext *c, int w) {
 169     int src_size, stride;
 170     uint8_t *src0, *src1;
 171     declare_func(void, uint8_t *src, const ptrdiff_t stride,
 172                  const ptrdiff_t width);
 173
 174     stride = w + 32;
 175     src_size = (stride + 32) * 2; /* dsp need previous line, and ignore the start of the line */
 176     src0 = av_mallocz(src_size);
 177     src1 = av_mallocz(src_size);
 178
 179     init_buffer(src0, src1, uint8_t, src_size);
 180
 181     if (check_func(c->add_gradient_pred, "add_gradient_pred")) {
 182         call_ref(src0 + stride + 32, stride, w);
 183         call_new(src1 + stride + 32, stride, w);
 184         if (memcmp(src0, src1, stride)||/* previous line doesn't change */
 185             memcmp(src0+stride, src1 + stride, w + 32)) {
 186             fail();
 187         }
 188         bench_new(src1 + stride + 32, stride, w);
 189     }
 190
 191     av_free(src0);
 192     av_free(src1);
 193 }
 194
 195 void checkasm_check_llviddsp(void)
 196 {
 197     LLVidDSPContext c;
 198     int width = 16 * av_clip(rnd(), 16, 128);
 199     int accRnd = rnd() & 0xFF;
 200
 201     ff_llviddsp_init(&c);
 202
 203     check_add_bytes(&c, width);
 204     report("add_bytes");
 205
 206     check_add_median_pred(&c, width);
 207     report("add_median_pred");
 208
 209     check_add_left_pred(&c, width, 0, "add_left_pred_zero");
 210     report("add_left_pred_zero");
 211
 212     check_add_left_pred(&c, width, accRnd, "add_left_pred_rnd_acc");
 213     report("add_left_pred_rnd_acc");
 214
 215     check_add_left_pred_16(&c, 255, width, accRnd, "add_left_pred_int16");
 216     report("add_left_pred_int16");
 217
 218     check_add_gradient_pred(&c, width);
 219     report("add_gradient_pred");
 220 }