LCOV - code coverage report
Current view: top level - src/tests/checkasm - h264dsp.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 57 58 98.3 %
Date: 2017-01-19 23:52:33 Functions: 8 8 100.0 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2016 Martin Storsjo
       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             : #include "checkasm.h"
      23             : #include "libavcodec/avcodec.h"
      24             : #include "libavcodec/h264dsp.h"
      25             : #include "libavutil/common.h"
      26             : #include "libavutil/internal.h"
      27             : #include "libavutil/intreadwrite.h"
      28             : 
      29             : static const uint32_t pixel_mask[3] = { 0xffffffff, 0x01ff01ff, 0x03ff03ff };
      30             : 
      31             : #define SIZEOF_PIXEL ((bit_depth + 7) / 8)
      32             : #define SIZEOF_COEF  (2 * ((bit_depth + 7) / 8))
      33             : #define PIXEL_STRIDE 16
      34             : 
      35             : #define randomize_buffers()                                                  \
      36             :     do {                                                                     \
      37             :         int x, y;                                                            \
      38             :         uint32_t mask = pixel_mask[bit_depth - 8];                           \
      39             :         for (y = 0; y < sz; y++) {                                           \
      40             :             for (x = 0; x < PIXEL_STRIDE; x += 4) {                          \
      41             :                 AV_WN32A(src + y * PIXEL_STRIDE + x, rnd() & mask);          \
      42             :                 AV_WN32A(dst + y * PIXEL_STRIDE + x, rnd() & mask);          \
      43             :             }                                                                \
      44             :             for (x = 0; x < sz; x++) {                                       \
      45             :                 if (bit_depth == 8) {                                        \
      46             :                     coef[y * sz + x] = src[y * PIXEL_STRIDE + x] -           \
      47             :                                        dst[y * PIXEL_STRIDE + x];            \
      48             :                 } else {                                                     \
      49             :                     ((int32_t *)coef)[y * sz + x] =                          \
      50             :                         ((uint16_t *)src)[y * (PIXEL_STRIDE/2) + x] -        \
      51             :                         ((uint16_t *)dst)[y * (PIXEL_STRIDE/2) + x];         \
      52             :                 }                                                            \
      53             :             }                                                                \
      54             :         }                                                                    \
      55             :     } while (0)
      56             : 
      57             : #define dct4x4_impl(size, dctcoef)                                           \
      58             : static void dct4x4_##size(dctcoef *coef)                                     \
      59             : {                                                                            \
      60             :     int i, y, x;                                                             \
      61             :     dctcoef tmp[16];                                                         \
      62             :     for (i = 0; i < 4; i++) {                                                \
      63             :         const int z0 = coef[i*4 + 0] + coef[i*4 + 3];                        \
      64             :         const int z1 = coef[i*4 + 1] + coef[i*4 + 2];                        \
      65             :         const int z2 = coef[i*4 + 0] - coef[i*4 + 3];                        \
      66             :         const int z3 = coef[i*4 + 1] - coef[i*4 + 2];                        \
      67             :         tmp[i + 4*0] =   z0 +   z1;                                          \
      68             :         tmp[i + 4*1] = 2*z2 +   z3;                                          \
      69             :         tmp[i + 4*2] =   z0 -   z1;                                          \
      70             :         tmp[i + 4*3] =   z2 - 2*z3;                                          \
      71             :     }                                                                        \
      72             :     for (i = 0; i < 4; i++) {                                                \
      73             :         const int z0 = tmp[i*4 + 0] + tmp[i*4 + 3];                          \
      74             :         const int z1 = tmp[i*4 + 1] + tmp[i*4 + 2];                          \
      75             :         const int z2 = tmp[i*4 + 0] - tmp[i*4 + 3];                          \
      76             :         const int z3 = tmp[i*4 + 1] - tmp[i*4 + 2];                          \
      77             :         coef[i*4 + 0] =   z0 +   z1;                                         \
      78             :         coef[i*4 + 1] = 2*z2 +   z3;                                         \
      79             :         coef[i*4 + 2] =   z0 -   z1;                                         \
      80             :         coef[i*4 + 3] =   z2 - 2*z3;                                         \
      81             :     }                                                                        \
      82             :     for (y = 0; y < 4; y++) {                                                \
      83             :         for (x = 0; x < 4; x++) {                                            \
      84             :             static const int scale[] = { 13107 * 10, 8066 * 13, 5243 * 16 }; \
      85             :             const int idx = (y & 1) + (x & 1);                               \
      86             :             coef[y*4 + x] = (coef[y*4 + x] * scale[idx] + (1 << 14)) >> 15;  \
      87             :         }                                                                    \
      88             :     }                                                                        \
      89             : }
      90             : 
      91             : #define DCT8_1D(src, srcstride, dst, dststride) do {                         \
      92             :     const int a0 = (src)[srcstride * 0] + (src)[srcstride * 7];              \
      93             :     const int a1 = (src)[srcstride * 0] - (src)[srcstride * 7];              \
      94             :     const int a2 = (src)[srcstride * 1] + (src)[srcstride * 6];              \
      95             :     const int a3 = (src)[srcstride * 1] - (src)[srcstride * 6];              \
      96             :     const int a4 = (src)[srcstride * 2] + (src)[srcstride * 5];              \
      97             :     const int a5 = (src)[srcstride * 2] - (src)[srcstride * 5];              \
      98             :     const int a6 = (src)[srcstride * 3] + (src)[srcstride * 4];              \
      99             :     const int a7 = (src)[srcstride * 3] - (src)[srcstride * 4];              \
     100             :     const int b0 = a0 + a6;                                                  \
     101             :     const int b1 = a2 + a4;                                                  \
     102             :     const int b2 = a0 - a6;                                                  \
     103             :     const int b3 = a2 - a4;                                                  \
     104             :     const int b4 = a3 + a5 + (a1 + (a1 >> 1));                               \
     105             :     const int b5 = a1 - a7 - (a5 + (a5 >> 1));                               \
     106             :     const int b6 = a1 + a7 - (a3 + (a3 >> 1));                               \
     107             :     const int b7 = a3 - a5 + (a7 + (a7 >> 1));                               \
     108             :     (dst)[dststride * 0] =  b0 +  b1;                                        \
     109             :     (dst)[dststride * 1] =  b4 + (b7 >> 2);                                  \
     110             :     (dst)[dststride * 2] =  b2 + (b3 >> 1);                                  \
     111             :     (dst)[dststride * 3] =  b5 + (b6 >> 2);                                  \
     112             :     (dst)[dststride * 4] =  b0  - b1;                                        \
     113             :     (dst)[dststride * 5] =  b6 - (b5 >> 2);                                  \
     114             :     (dst)[dststride * 6] = (b2 >> 1) - b3;                                   \
     115             :     (dst)[dststride * 7] = (b4 >> 2) - b7;                                   \
     116             : } while (0)
     117             : 
     118             : #define dct8x8_impl(size, dctcoef)                                           \
     119             : static void dct8x8_##size(dctcoef *coef)                                     \
     120             : {                                                                            \
     121             :     int i, x, y;                                                             \
     122             :     dctcoef tmp[64];                                                         \
     123             :     for (i = 0; i < 8; i++)                                                  \
     124             :         DCT8_1D(coef + i, 8, tmp + i, 8);                                    \
     125             :                                                                              \
     126             :     for (i = 0; i < 8; i++)                                                  \
     127             :         DCT8_1D(tmp + 8*i, 1, coef + i, 8);                                  \
     128             :                                                                              \
     129             :     for (y = 0; y < 8; y++) {                                                \
     130             :         for (x = 0; x < 8; x++) {                                            \
     131             :             static const int scale[] = {                                     \
     132             :                 13107 * 20, 11428 * 18, 20972 * 32,                          \
     133             :                 12222 * 19, 16777 * 25, 15481 * 24,                          \
     134             :             };                                                               \
     135             :             static const int idxmap[] = {                                    \
     136             :                 0, 3, 4, 3,                                                  \
     137             :                 3, 1, 5, 1,                                                  \
     138             :                 4, 5, 2, 5,                                                  \
     139             :                 3, 1, 5, 1,                                                  \
     140             :             };                                                               \
     141             :             const int idx = idxmap[(y & 3) * 4 + (x & 3)];                   \
     142             :             coef[y*8 + x] = ((int64_t)coef[y*8 + x] *                        \
     143             :                              scale[idx] + (1 << 17)) >> 18;                  \
     144             :         }                                                                    \
     145             :     }                                                                        \
     146             : }
     147             : 
     148          11 : dct4x4_impl(16, int16_t)
     149          22 : dct4x4_impl(32, int32_t)
     150             : 
     151          11 : dct8x8_impl(16, int16_t)
     152          22 : dct8x8_impl(32, int32_t)
     153             : 
     154          33 : static void dct4x4(int16_t *coef, int bit_depth)
     155             : {
     156          33 :     if (bit_depth == 8)
     157          11 :         dct4x4_16(coef);
     158             :     else
     159          22 :         dct4x4_32((int32_t *) coef);
     160          33 : }
     161             : 
     162          33 : static void dct8x8(int16_t *coef, int bit_depth)
     163             : {
     164          33 :     if (bit_depth == 8) {
     165          11 :         dct8x8_16(coef);
     166             :     } else {
     167          22 :         dct8x8_32((int32_t *) coef);
     168             :     }
     169          33 : }
     170             : 
     171             : 
     172          11 : static void check_idct(void)
     173             : {
     174          11 :     LOCAL_ALIGNED_16(uint8_t, src,  [8 * 8 * 2]);
     175          11 :     LOCAL_ALIGNED_16(uint8_t, dst,  [8 * 8 * 2]);
     176          11 :     LOCAL_ALIGNED_16(uint8_t, dst0, [8 * 8 * 2]);
     177          11 :     LOCAL_ALIGNED_16(uint8_t, dst1_base, [8 * 8 * 2 + 32]);
     178          11 :     LOCAL_ALIGNED_16(int16_t, coef, [8 * 8 * 2]);
     179          11 :     LOCAL_ALIGNED_16(int16_t, subcoef0, [8 * 8 * 2]);
     180          11 :     LOCAL_ALIGNED_16(int16_t, subcoef1, [8 * 8 * 2]);
     181             :     H264DSPContext h;
     182             :     int bit_depth, sz, align, dc;
     183          11 :     declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, int16_t *block, int stride);
     184             : 
     185          44 :     for (bit_depth = 8; bit_depth <= 10; bit_depth++) {
     186          33 :         ff_h264dsp_init(&h, bit_depth, 1);
     187          99 :         for (sz = 4; sz <= 8; sz += 4) {
     188          66 :             randomize_buffers();
     189             : 
     190          66 :             if (sz == 4)
     191          33 :                 dct4x4(coef, bit_depth);
     192             :             else
     193          33 :                 dct8x8(coef, bit_depth);
     194             : 
     195         198 :             for (dc = 0; dc <= 1; dc++) {
     196         132 :                 void (*idct)(uint8_t *, int16_t *, int) = NULL;
     197         132 :                 switch ((sz << 1) | dc) {
     198          33 :                 case (4 << 1) | 0: idct = h.h264_idct_add; break;
     199          33 :                 case (4 << 1) | 1: idct = h.h264_idct_dc_add; break;
     200          33 :                 case (8 << 1) | 0: idct = h.h264_idct8_add; break;
     201          33 :                 case (8 << 1) | 1: idct = h.h264_idct8_dc_add; break;
     202             :                 }
     203         132 :                 if (check_func(idct, "h264_idct%d_add%s_%dbpp", sz, dc ? "_dc" : "", bit_depth)) {
     204          83 :                     for (align = 0; align < 16; align += sz * SIZEOF_PIXEL) {
     205          56 :                         uint8_t *dst1 = dst1_base + align;
     206          56 :                         if (dc) {
     207          30 :                             memset(subcoef0, 0, sz * sz * SIZEOF_COEF);
     208          30 :                             memcpy(subcoef0, coef, SIZEOF_COEF);
     209             :                         } else {
     210          26 :                             memcpy(subcoef0, coef, sz * sz * SIZEOF_COEF);
     211             :                         }
     212          56 :                         memcpy(dst0, dst, sz * PIXEL_STRIDE);
     213          56 :                         memcpy(dst1, dst, sz * PIXEL_STRIDE);
     214          56 :                         memcpy(subcoef1, subcoef0, sz * sz * SIZEOF_COEF);
     215          56 :                         call_ref(dst0, subcoef0, PIXEL_STRIDE);
     216          56 :                         call_new(dst1, subcoef1, PIXEL_STRIDE);
     217         112 :                         if (memcmp(dst0, dst1, sz * PIXEL_STRIDE) ||
     218          56 :                             memcmp(subcoef0, subcoef1, sz * sz * SIZEOF_COEF))
     219           0 :                             fail();
     220          56 :                         bench_new(dst1, subcoef1, sz * SIZEOF_PIXEL);
     221             :                     }
     222             :                 }
     223             :             }
     224             :         }
     225             :     }
     226          11 :     report("idct");
     227          11 : }
     228             : 
     229          11 : void checkasm_check_h264dsp(void)
     230             : {
     231          11 :     check_idct();
     232          11 : }

Generated by: LCOV version 1.12