1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232
|
/*
* Copyright (c) 2016 Martin Storsjo
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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.
*/
#include <string.h>
#include "checkasm.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/h264dsp.h"
#include "libavutil/common.h"
#include "libavutil/internal.h"
#include "libavutil/intreadwrite.h"
static const uint32_t pixel_mask[3] = { 0xffffffff, 0x01ff01ff, 0x03ff03ff };
#define SIZEOF_PIXEL ((bit_depth + 7) / 8)
#define SIZEOF_COEF (2 * ((bit_depth + 7) / 8))
#define PIXEL_STRIDE 16
#define randomize_buffers() \
do { \
uint32_t mask = pixel_mask[bit_depth - 8]; \
for (y = 0; y < sz; y++) { \
for (x = 0; x < PIXEL_STRIDE; x += 4) { \
AV_WN32A(src + y * PIXEL_STRIDE + x, rnd() & mask); \
AV_WN32A(dst + y * PIXEL_STRIDE + x, rnd() & mask); \
} \
for (x = 0; x < sz; x++) { \
if (bit_depth == 8) { \
coef[y * sz + x] = src[y * PIXEL_STRIDE + x] - \
dst[y * PIXEL_STRIDE + x]; \
} else { \
((int32_t *)coef)[y * sz + x] = \
((uint16_t *)src)[y * (PIXEL_STRIDE/2) + x] - \
((uint16_t *)dst)[y * (PIXEL_STRIDE/2) + x]; \
} \
} \
} \
} while (0)
#define dct4x4_impl(size, dctcoef) \
static void dct4x4_##size(dctcoef *coef) \
{ \
int i, y, x; \
dctcoef tmp[16]; \
for (i = 0; i < 4; i++) { \
const int z0 = coef[i*4 + 0] + coef[i*4 + 3]; \
const int z1 = coef[i*4 + 1] + coef[i*4 + 2]; \
const int z2 = coef[i*4 + 0] - coef[i*4 + 3]; \
const int z3 = coef[i*4 + 1] - coef[i*4 + 2]; \
tmp[i + 4*0] = z0 + z1; \
tmp[i + 4*1] = 2*z2 + z3; \
tmp[i + 4*2] = z0 - z1; \
tmp[i + 4*3] = z2 - 2*z3; \
} \
for (i = 0; i < 4; i++) { \
const int z0 = tmp[i*4 + 0] + tmp[i*4 + 3]; \
const int z1 = tmp[i*4 + 1] + tmp[i*4 + 2]; \
const int z2 = tmp[i*4 + 0] - tmp[i*4 + 3]; \
const int z3 = tmp[i*4 + 1] - tmp[i*4 + 2]; \
coef[i*4 + 0] = z0 + z1; \
coef[i*4 + 1] = 2*z2 + z3; \
coef[i*4 + 2] = z0 - z1; \
coef[i*4 + 3] = z2 - 2*z3; \
} \
for (y = 0; y < 4; y++) { \
for (x = 0; x < 4; x++) { \
static const int scale[] = { 13107 * 10, 8066 * 13, 5243 * 16 }; \
const int idx = (y & 1) + (x & 1); \
coef[y*4 + x] = (coef[y*4 + x] * scale[idx] + (1 << 14)) >> 15; \
} \
} \
}
#define DCT8_1D(src, srcstride, dst, dststride) do { \
const int a0 = (src)[srcstride * 0] + (src)[srcstride * 7]; \
const int a1 = (src)[srcstride * 0] - (src)[srcstride * 7]; \
const int a2 = (src)[srcstride * 1] + (src)[srcstride * 6]; \
const int a3 = (src)[srcstride * 1] - (src)[srcstride * 6]; \
const int a4 = (src)[srcstride * 2] + (src)[srcstride * 5]; \
const int a5 = (src)[srcstride * 2] - (src)[srcstride * 5]; \
const int a6 = (src)[srcstride * 3] + (src)[srcstride * 4]; \
const int a7 = (src)[srcstride * 3] - (src)[srcstride * 4]; \
const int b0 = a0 + a6; \
const int b1 = a2 + a4; \
const int b2 = a0 - a6; \
const int b3 = a2 - a4; \
const int b4 = a3 + a5 + (a1 + (a1 >> 1)); \
const int b5 = a1 - a7 - (a5 + (a5 >> 1)); \
const int b6 = a1 + a7 - (a3 + (a3 >> 1)); \
const int b7 = a3 - a5 + (a7 + (a7 >> 1)); \
(dst)[dststride * 0] = b0 + b1; \
(dst)[dststride * 1] = b4 + (b7 >> 2); \
(dst)[dststride * 2] = b2 + (b3 >> 1); \
(dst)[dststride * 3] = b5 + (b6 >> 2); \
(dst)[dststride * 4] = b0 - b1; \
(dst)[dststride * 5] = b6 - (b5 >> 2); \
(dst)[dststride * 6] = (b2 >> 1) - b3; \
(dst)[dststride * 7] = (b4 >> 2) - b7; \
} while (0)
#define dct8x8_impl(size, dctcoef) \
static void dct8x8_##size(dctcoef *coef) \
{ \
int i, x, y; \
dctcoef tmp[64]; \
for (i = 0; i < 8; i++) \
DCT8_1D(coef + i, 8, tmp + i, 8); \
\
for (i = 0; i < 8; i++) \
DCT8_1D(tmp + 8*i, 1, coef + i, 8); \
\
for (y = 0; y < 8; y++) { \
for (x = 0; x < 8; x++) { \
static const int scale[] = { \
13107 * 20, 11428 * 18, 20972 * 32, \
12222 * 19, 16777 * 25, 15481 * 24, \
}; \
static const int idxmap[] = { \
0, 3, 4, 3, \
3, 1, 5, 1, \
4, 5, 2, 5, \
3, 1, 5, 1, \
}; \
const int idx = idxmap[(y & 3) * 4 + (x & 3)]; \
coef[y*8 + x] = ((int64_t)coef[y*8 + x] * \
scale[idx] + (1 << 17)) >> 18; \
} \
} \
}
dct4x4_impl(16, int16_t)
dct4x4_impl(32, int32_t)
dct8x8_impl(16, int16_t)
dct8x8_impl(32, int32_t)
static void dct4x4(int16_t *coef, int bit_depth)
{
if (bit_depth == 8)
dct4x4_16(coef);
else
dct4x4_32((int32_t *) coef);
}
static void dct8x8(int16_t *coef, int bit_depth)
{
if (bit_depth == 8) {
dct8x8_16(coef);
} else {
dct8x8_32((int32_t *) coef);
}
}
static void check_idct(void)
{
LOCAL_ALIGNED_16(uint8_t, src, [8 * 8 * 2]);
LOCAL_ALIGNED_16(uint8_t, dst, [8 * 8 * 2]);
LOCAL_ALIGNED_16(uint8_t, dst0, [8 * 8 * 2]);
LOCAL_ALIGNED_16(uint8_t, dst1_base, [8 * 8 * 2 + 32]);
LOCAL_ALIGNED_16(int16_t, coef, [8 * 8 * 2]);
LOCAL_ALIGNED_16(int16_t, subcoef0, [8 * 8 * 2]);
LOCAL_ALIGNED_16(int16_t, subcoef1, [8 * 8 * 2]);
H264DSPContext h;
int bit_depth, sz, align;
int x, y, dc;
declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, int16_t *block, int stride);
for (bit_depth = 8; bit_depth <= 10; bit_depth++) {
ff_h264dsp_init(&h, bit_depth, 1);
for (sz = 4; sz <= 8; sz += 4) {
randomize_buffers();
if (sz == 4)
dct4x4(coef, bit_depth);
else
dct8x8(coef, bit_depth);
for (dc = 0; dc <= 1; dc++) {
void (*idct)(uint8_t *, int16_t *, int) = NULL;
switch ((sz << 1) | dc) {
case (4 << 1) | 0: idct = h.h264_idct_add; break;
case (4 << 1) | 1: idct = h.h264_idct_dc_add; break;
case (8 << 1) | 0: idct = h.h264_idct8_add; break;
case (8 << 1) | 1: idct = h.h264_idct8_dc_add; break;
}
if (check_func(idct, "h264_idct%d_add%s_%dbpp", sz, dc ? "_dc" : "", bit_depth)) {
for (align = 0; align < 16; align += sz * SIZEOF_PIXEL) {
uint8_t *dst1 = dst1_base + align;
if (dc) {
memset(subcoef0, 0, sz * sz * SIZEOF_COEF);
memcpy(subcoef0, coef, SIZEOF_COEF);
} else {
memcpy(subcoef0, coef, sz * sz * SIZEOF_COEF);
}
memcpy(dst0, dst, sz * PIXEL_STRIDE);
memcpy(dst1, dst, sz * PIXEL_STRIDE);
memcpy(subcoef1, subcoef0, sz * sz * SIZEOF_COEF);
call_ref(dst0, subcoef0, PIXEL_STRIDE);
call_new(dst1, subcoef1, PIXEL_STRIDE);
if (memcmp(dst0, dst1, sz * PIXEL_STRIDE) ||
memcmp(subcoef0, subcoef1, sz * sz * SIZEOF_COEF))
fail();
bench_new(dst1, subcoef1, sz * SIZEOF_PIXEL);
}
}
}
}
}
report("idct");
}
void checkasm_check_h264dsp(void)
{
check_idct();
}
|