1 /* 2 * Copyright (c) 2015 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_ 12 #define VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_ 13 14 #include <emmintrin.h> // SSE2 15 16 #include "./vpx_config.h" 17 #include "vpx/vpx_integer.h" 18 #include "vpx_dsp/inv_txfm.h" 19 #include "vpx_dsp/x86/transpose_sse2.h" 20 #include "vpx_dsp/x86/txfm_common_sse2.h" 21 22 static INLINE void extend_64bit(const __m128i in, 23 __m128i *const out /*out[2]*/) { 24 out[0] = _mm_unpacklo_epi32(in, in); // 0, 0, 1, 1 25 out[1] = _mm_unpackhi_epi32(in, in); // 2, 2, 3, 3 26 } 27 28 static INLINE __m128i wraplow_16bit_shift4(const __m128i in0, const __m128i in1, 29 const __m128i rounding) { 30 __m128i temp[2]; 31 temp[0] = _mm_add_epi32(in0, rounding); 32 temp[1] = _mm_add_epi32(in1, rounding); 33 temp[0] = _mm_srai_epi32(temp[0], 4); 34 temp[1] = _mm_srai_epi32(temp[1], 4); 35 return _mm_packs_epi32(temp[0], temp[1]); 36 } 37 38 static INLINE __m128i wraplow_16bit_shift5(const __m128i in0, const __m128i in1, 39 const __m128i rounding) { 40 __m128i temp[2]; 41 temp[0] = _mm_add_epi32(in0, rounding); 42 temp[1] = _mm_add_epi32(in1, rounding); 43 temp[0] = _mm_srai_epi32(temp[0], 5); 44 temp[1] = _mm_srai_epi32(temp[1], 5); 45 return _mm_packs_epi32(temp[0], temp[1]); 46 } 47 48 static INLINE __m128i dct_const_round_shift_64bit(const __m128i in) { 49 const __m128i t = 50 _mm_add_epi64(in, pair_set_epi32(DCT_CONST_ROUNDING << 2, 0)); 51 return _mm_srli_si128(t, 2); 52 } 53 54 static INLINE __m128i pack_4(const __m128i in0, const __m128i in1) { 55 const __m128i t0 = _mm_unpacklo_epi32(in0, in1); // 0, 2 56 const __m128i t1 = _mm_unpackhi_epi32(in0, in1); // 1, 3 57 return _mm_unpacklo_epi32(t0, t1); // 0, 1, 2, 3 58 } 59 60 static INLINE void abs_extend_64bit_sse2(const __m128i in, 61 __m128i *const out /*out[2]*/, 62 __m128i *const sign /*sign[2]*/) { 63 sign[0] = _mm_srai_epi32(in, 31); 64 out[0] = _mm_xor_si128(in, sign[0]); 65 out[0] = _mm_sub_epi32(out[0], sign[0]); 66 sign[1] = _mm_unpackhi_epi32(sign[0], sign[0]); // 64-bit sign of 2, 3 67 sign[0] = _mm_unpacklo_epi32(sign[0], sign[0]); // 64-bit sign of 0, 1 68 out[1] = _mm_unpackhi_epi32(out[0], out[0]); // 2, 3 69 out[0] = _mm_unpacklo_epi32(out[0], out[0]); // 0, 1 70 } 71 72 // Note: cospi must be non negative. 73 static INLINE __m128i multiply_apply_sign_sse2(const __m128i in, 74 const __m128i sign, 75 const __m128i cospi) { 76 __m128i out = _mm_mul_epu32(in, cospi); 77 out = _mm_xor_si128(out, sign); 78 return _mm_sub_epi64(out, sign); 79 } 80 81 // Note: c must be non negative. 82 static INLINE __m128i multiplication_round_shift_sse2( 83 const __m128i *const in /*in[2]*/, const __m128i *const sign /*sign[2]*/, 84 const int c) { 85 const __m128i pair_c = pair_set_epi32(c << 2, 0); 86 __m128i t0, t1; 87 88 assert(c >= 0); 89 t0 = multiply_apply_sign_sse2(in[0], sign[0], pair_c); 90 t1 = multiply_apply_sign_sse2(in[1], sign[1], pair_c); 91 t0 = dct_const_round_shift_64bit(t0); 92 t1 = dct_const_round_shift_64bit(t1); 93 94 return pack_4(t0, t1); 95 } 96 97 // Note: c must be non negative. 98 static INLINE __m128i multiplication_neg_round_shift_sse2( 99 const __m128i *const in /*in[2]*/, const __m128i *const sign /*sign[2]*/, 100 const int c) { 101 const __m128i pair_c = pair_set_epi32(c << 2, 0); 102 __m128i t0, t1; 103 104 assert(c >= 0); 105 t0 = multiply_apply_sign_sse2(in[0], sign[0], pair_c); 106 t1 = multiply_apply_sign_sse2(in[1], sign[1], pair_c); 107 t0 = _mm_sub_epi64(_mm_setzero_si128(), t0); 108 t1 = _mm_sub_epi64(_mm_setzero_si128(), t1); 109 t0 = dct_const_round_shift_64bit(t0); 110 t1 = dct_const_round_shift_64bit(t1); 111 112 return pack_4(t0, t1); 113 } 114 115 // Note: c0 and c1 must be non negative. 116 static INLINE void highbd_butterfly_sse2(const __m128i in0, const __m128i in1, 117 const int c0, const int c1, 118 __m128i *const out0, 119 __m128i *const out1) { 120 const __m128i pair_c0 = pair_set_epi32(c0 << 2, 0); 121 const __m128i pair_c1 = pair_set_epi32(c1 << 2, 0); 122 __m128i temp1[4], temp2[4], sign1[2], sign2[2]; 123 124 assert(c0 >= 0); 125 assert(c1 >= 0); 126 abs_extend_64bit_sse2(in0, temp1, sign1); 127 abs_extend_64bit_sse2(in1, temp2, sign2); 128 temp1[2] = multiply_apply_sign_sse2(temp1[0], sign1[0], pair_c1); 129 temp1[3] = multiply_apply_sign_sse2(temp1[1], sign1[1], pair_c1); 130 temp1[0] = multiply_apply_sign_sse2(temp1[0], sign1[0], pair_c0); 131 temp1[1] = multiply_apply_sign_sse2(temp1[1], sign1[1], pair_c0); 132 temp2[2] = multiply_apply_sign_sse2(temp2[0], sign2[0], pair_c0); 133 temp2[3] = multiply_apply_sign_sse2(temp2[1], sign2[1], pair_c0); 134 temp2[0] = multiply_apply_sign_sse2(temp2[0], sign2[0], pair_c1); 135 temp2[1] = multiply_apply_sign_sse2(temp2[1], sign2[1], pair_c1); 136 temp1[0] = _mm_sub_epi64(temp1[0], temp2[0]); 137 temp1[1] = _mm_sub_epi64(temp1[1], temp2[1]); 138 temp2[0] = _mm_add_epi64(temp1[2], temp2[2]); 139 temp2[1] = _mm_add_epi64(temp1[3], temp2[3]); 140 temp1[0] = dct_const_round_shift_64bit(temp1[0]); 141 temp1[1] = dct_const_round_shift_64bit(temp1[1]); 142 temp2[0] = dct_const_round_shift_64bit(temp2[0]); 143 temp2[1] = dct_const_round_shift_64bit(temp2[1]); 144 *out0 = pack_4(temp1[0], temp1[1]); 145 *out1 = pack_4(temp2[0], temp2[1]); 146 } 147 148 // Note: c0 and c1 must be non negative. 149 static INLINE void highbd_partial_butterfly_sse2(const __m128i in, const int c0, 150 const int c1, 151 __m128i *const out0, 152 __m128i *const out1) { 153 __m128i temp[2], sign[2]; 154 155 assert(c0 >= 0); 156 assert(c1 >= 0); 157 abs_extend_64bit_sse2(in, temp, sign); 158 *out0 = multiplication_round_shift_sse2(temp, sign, c0); 159 *out1 = multiplication_round_shift_sse2(temp, sign, c1); 160 } 161 162 // Note: c0 and c1 must be non negative. 163 static INLINE void highbd_partial_butterfly_neg_sse2(const __m128i in, 164 const int c0, const int c1, 165 __m128i *const out0, 166 __m128i *const out1) { 167 __m128i temp[2], sign[2]; 168 169 assert(c0 >= 0); 170 assert(c1 >= 0); 171 abs_extend_64bit_sse2(in, temp, sign); 172 *out0 = multiplication_neg_round_shift_sse2(temp, sign, c1); 173 *out1 = multiplication_round_shift_sse2(temp, sign, c0); 174 } 175 176 static INLINE void highbd_butterfly_cospi16_sse2(const __m128i in0, 177 const __m128i in1, 178 __m128i *const out0, 179 __m128i *const out1) { 180 __m128i temp1[2], temp2, sign[2]; 181 182 temp2 = _mm_add_epi32(in0, in1); 183 abs_extend_64bit_sse2(temp2, temp1, sign); 184 *out0 = multiplication_round_shift_sse2(temp1, sign, cospi_16_64); 185 temp2 = _mm_sub_epi32(in0, in1); 186 abs_extend_64bit_sse2(temp2, temp1, sign); 187 *out1 = multiplication_round_shift_sse2(temp1, sign, cospi_16_64); 188 } 189 190 // Only do addition and subtraction butterfly, size = 16, 32 191 static INLINE void highbd_add_sub_butterfly(const __m128i *in, __m128i *out, 192 int size) { 193 int i = 0; 194 const int num = size >> 1; 195 const int bound = size - 1; 196 while (i < num) { 197 out[i] = _mm_add_epi32(in[i], in[bound - i]); 198 out[bound - i] = _mm_sub_epi32(in[i], in[bound - i]); 199 i++; 200 } 201 } 202 203 static INLINE void highbd_idct8_stage4(const __m128i *const in, 204 __m128i *const out) { 205 out[0] = _mm_add_epi32(in[0], in[7]); 206 out[1] = _mm_add_epi32(in[1], in[6]); 207 out[2] = _mm_add_epi32(in[2], in[5]); 208 out[3] = _mm_add_epi32(in[3], in[4]); 209 out[4] = _mm_sub_epi32(in[3], in[4]); 210 out[5] = _mm_sub_epi32(in[2], in[5]); 211 out[6] = _mm_sub_epi32(in[1], in[6]); 212 out[7] = _mm_sub_epi32(in[0], in[7]); 213 } 214 215 static INLINE void highbd_idct8x8_final_round(__m128i *const io) { 216 io[0] = wraplow_16bit_shift5(io[0], io[8], _mm_set1_epi32(16)); 217 io[1] = wraplow_16bit_shift5(io[1], io[9], _mm_set1_epi32(16)); 218 io[2] = wraplow_16bit_shift5(io[2], io[10], _mm_set1_epi32(16)); 219 io[3] = wraplow_16bit_shift5(io[3], io[11], _mm_set1_epi32(16)); 220 io[4] = wraplow_16bit_shift5(io[4], io[12], _mm_set1_epi32(16)); 221 io[5] = wraplow_16bit_shift5(io[5], io[13], _mm_set1_epi32(16)); 222 io[6] = wraplow_16bit_shift5(io[6], io[14], _mm_set1_epi32(16)); 223 io[7] = wraplow_16bit_shift5(io[7], io[15], _mm_set1_epi32(16)); 224 } 225 226 static INLINE void highbd_idct16_4col_stage7(const __m128i *const in, 227 __m128i *const out) { 228 out[0] = _mm_add_epi32(in[0], in[15]); 229 out[1] = _mm_add_epi32(in[1], in[14]); 230 out[2] = _mm_add_epi32(in[2], in[13]); 231 out[3] = _mm_add_epi32(in[3], in[12]); 232 out[4] = _mm_add_epi32(in[4], in[11]); 233 out[5] = _mm_add_epi32(in[5], in[10]); 234 out[6] = _mm_add_epi32(in[6], in[9]); 235 out[7] = _mm_add_epi32(in[7], in[8]); 236 out[8] = _mm_sub_epi32(in[7], in[8]); 237 out[9] = _mm_sub_epi32(in[6], in[9]); 238 out[10] = _mm_sub_epi32(in[5], in[10]); 239 out[11] = _mm_sub_epi32(in[4], in[11]); 240 out[12] = _mm_sub_epi32(in[3], in[12]); 241 out[13] = _mm_sub_epi32(in[2], in[13]); 242 out[14] = _mm_sub_epi32(in[1], in[14]); 243 out[15] = _mm_sub_epi32(in[0], in[15]); 244 } 245 246 static INLINE __m128i add_clamp(const __m128i in0, const __m128i in1, 247 const int bd) { 248 const __m128i zero = _mm_set1_epi16(0); 249 // Faster than _mm_set1_epi16((1 << bd) - 1). 250 const __m128i one = _mm_set1_epi16(1); 251 const __m128i max = _mm_sub_epi16(_mm_slli_epi16(one, bd), one); 252 __m128i d; 253 254 d = _mm_adds_epi16(in0, in1); 255 d = _mm_max_epi16(d, zero); 256 d = _mm_min_epi16(d, max); 257 258 return d; 259 } 260 261 static INLINE void highbd_idct_1_add_kernel(const tran_low_t *input, 262 uint16_t *dest, int stride, int bd, 263 const int size) { 264 int a1, i, j; 265 tran_low_t out; 266 __m128i dc, d; 267 268 out = HIGHBD_WRAPLOW( 269 dct_const_round_shift(input[0] * (tran_high_t)cospi_16_64), bd); 270 out = 271 HIGHBD_WRAPLOW(dct_const_round_shift(out * (tran_high_t)cospi_16_64), bd); 272 a1 = ROUND_POWER_OF_TWO(out, (size == 8) ? 5 : 6); 273 dc = _mm_set1_epi16(a1); 274 275 for (i = 0; i < size; ++i) { 276 for (j = 0; j < size; j += 8) { 277 d = _mm_load_si128((const __m128i *)(&dest[j])); 278 d = add_clamp(d, dc, bd); 279 _mm_store_si128((__m128i *)(&dest[j]), d); 280 } 281 dest += stride; 282 } 283 } 284 285 static INLINE void recon_and_store_4(const __m128i in, uint16_t *const dest, 286 const int bd) { 287 __m128i d; 288 289 d = _mm_loadl_epi64((const __m128i *)dest); 290 d = add_clamp(d, in, bd); 291 _mm_storel_epi64((__m128i *)dest, d); 292 } 293 294 static INLINE void recon_and_store_4x2(const __m128i in, uint16_t *const dest, 295 const int stride, const int bd) { 296 __m128i d; 297 298 d = _mm_loadl_epi64((const __m128i *)(dest + 0 * stride)); 299 d = _mm_castps_si128( 300 _mm_loadh_pi(_mm_castsi128_ps(d), (const __m64 *)(dest + 1 * stride))); 301 d = add_clamp(d, in, bd); 302 _mm_storel_epi64((__m128i *)(dest + 0 * stride), d); 303 _mm_storeh_pi((__m64 *)(dest + 1 * stride), _mm_castsi128_ps(d)); 304 } 305 306 static INLINE void recon_and_store_4x4(const __m128i *const in, uint16_t *dest, 307 const int stride, const int bd) { 308 recon_and_store_4x2(in[0], dest, stride, bd); 309 dest += 2 * stride; 310 recon_and_store_4x2(in[1], dest, stride, bd); 311 } 312 313 static INLINE void recon_and_store_8(const __m128i in, uint16_t **const dest, 314 const int stride, const int bd) { 315 __m128i d; 316 317 d = _mm_load_si128((const __m128i *)(*dest)); 318 d = add_clamp(d, in, bd); 319 _mm_store_si128((__m128i *)(*dest), d); 320 *dest += stride; 321 } 322 323 static INLINE void recon_and_store_8x8(const __m128i *const in, uint16_t *dest, 324 const int stride, const int bd) { 325 recon_and_store_8(in[0], &dest, stride, bd); 326 recon_and_store_8(in[1], &dest, stride, bd); 327 recon_and_store_8(in[2], &dest, stride, bd); 328 recon_and_store_8(in[3], &dest, stride, bd); 329 recon_and_store_8(in[4], &dest, stride, bd); 330 recon_and_store_8(in[5], &dest, stride, bd); 331 recon_and_store_8(in[6], &dest, stride, bd); 332 recon_and_store_8(in[7], &dest, stride, bd); 333 } 334 335 static INLINE __m128i load_pack_8_32bit(const tran_low_t *const input) { 336 const __m128i t0 = _mm_load_si128((const __m128i *)(input + 0)); 337 const __m128i t1 = _mm_load_si128((const __m128i *)(input + 4)); 338 return _mm_packs_epi32(t0, t1); 339 } 340 341 static INLINE void highbd_load_pack_transpose_32bit_8x8(const tran_low_t *input, 342 const int stride, 343 __m128i *const in) { 344 in[0] = load_pack_8_32bit(input + 0 * stride); 345 in[1] = load_pack_8_32bit(input + 1 * stride); 346 in[2] = load_pack_8_32bit(input + 2 * stride); 347 in[3] = load_pack_8_32bit(input + 3 * stride); 348 in[4] = load_pack_8_32bit(input + 4 * stride); 349 in[5] = load_pack_8_32bit(input + 5 * stride); 350 in[6] = load_pack_8_32bit(input + 6 * stride); 351 in[7] = load_pack_8_32bit(input + 7 * stride); 352 transpose_16bit_8x8(in, in); 353 } 354 355 static INLINE void highbd_load_transpose_32bit_8x4(const tran_low_t *input, 356 const int stride, 357 __m128i *in) { 358 in[0] = _mm_load_si128((const __m128i *)(input + 0 * stride + 0)); 359 in[1] = _mm_load_si128((const __m128i *)(input + 0 * stride + 4)); 360 in[2] = _mm_load_si128((const __m128i *)(input + 1 * stride + 0)); 361 in[3] = _mm_load_si128((const __m128i *)(input + 1 * stride + 4)); 362 in[4] = _mm_load_si128((const __m128i *)(input + 2 * stride + 0)); 363 in[5] = _mm_load_si128((const __m128i *)(input + 2 * stride + 4)); 364 in[6] = _mm_load_si128((const __m128i *)(input + 3 * stride + 0)); 365 in[7] = _mm_load_si128((const __m128i *)(input + 3 * stride + 4)); 366 transpose_32bit_8x4(in, in); 367 } 368 369 static INLINE void highbd_load_transpose_32bit_4x4(const tran_low_t *input, 370 const int stride, 371 __m128i *in) { 372 in[0] = _mm_load_si128((const __m128i *)(input + 0 * stride)); 373 in[1] = _mm_load_si128((const __m128i *)(input + 1 * stride)); 374 in[2] = _mm_load_si128((const __m128i *)(input + 2 * stride)); 375 in[3] = _mm_load_si128((const __m128i *)(input + 3 * stride)); 376 transpose_32bit_4x4(in, in); 377 } 378 379 static INLINE void highbd_write_buffer_8(uint16_t *dest, const __m128i in, 380 const int bd) { 381 const __m128i final_rounding = _mm_set1_epi16(1 << 5); 382 __m128i out; 383 384 out = _mm_adds_epi16(in, final_rounding); 385 out = _mm_srai_epi16(out, 6); 386 recon_and_store_8(out, &dest, 0, bd); 387 } 388 389 static INLINE void highbd_write_buffer_4(uint16_t *const dest, const __m128i in, 390 const int bd) { 391 const __m128i final_rounding = _mm_set1_epi32(1 << 5); 392 __m128i out; 393 394 out = _mm_add_epi32(in, final_rounding); 395 out = _mm_srai_epi32(out, 6); 396 out = _mm_packs_epi32(out, out); 397 recon_and_store_4(out, dest, bd); 398 } 399 400 #endif // VPX_DSP_X86_HIGHBD_INV_TXFM_SSE2_H_ 401
