1/* 2 * Copyright (c) 2014 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#include <arm_neon.h> 12#include "./vpx_config.h" 13#include "vpx_ports/arm.h" 14 15#ifdef VPX_INCOMPATIBLE_GCC 16static INLINE void write_2x4(unsigned char *dst, int pitch, 17 const uint8x8x2_t result) { 18 /* 19 * uint8x8x2_t result 20 00 01 02 03 | 04 05 06 07 21 10 11 12 13 | 14 15 16 17 22 --- 23 * after vtrn_u8 24 00 10 02 12 | 04 14 06 16 25 01 11 03 13 | 05 15 07 17 26 */ 27 const uint8x8x2_t r01_u8 = vtrn_u8(result.val[0], result.val[1]); 28 const uint16x4_t x_0_4 = vreinterpret_u16_u8(r01_u8.val[0]); 29 const uint16x4_t x_1_5 = vreinterpret_u16_u8(r01_u8.val[1]); 30 vst1_lane_u16((uint16_t *)dst, x_0_4, 0); 31 dst += pitch; 32 vst1_lane_u16((uint16_t *)dst, x_1_5, 0); 33 dst += pitch; 34 vst1_lane_u16((uint16_t *)dst, x_0_4, 1); 35 dst += pitch; 36 vst1_lane_u16((uint16_t *)dst, x_1_5, 1); 37 dst += pitch; 38 vst1_lane_u16((uint16_t *)dst, x_0_4, 2); 39 dst += pitch; 40 vst1_lane_u16((uint16_t *)dst, x_1_5, 2); 41 dst += pitch; 42 vst1_lane_u16((uint16_t *)dst, x_0_4, 3); 43 dst += pitch; 44 vst1_lane_u16((uint16_t *)dst, x_1_5, 3); 45} 46 47static INLINE void write_2x8(unsigned char *dst, int pitch, 48 const uint8x8x2_t result, 49 const uint8x8x2_t result2) { 50 write_2x4(dst, pitch, result); 51 dst += pitch * 8; 52 write_2x4(dst, pitch, result2); 53} 54#else 55static INLINE void write_2x8(unsigned char *dst, int pitch, 56 const uint8x8x2_t result, 57 const uint8x8x2_t result2) { 58 vst2_lane_u8(dst, result, 0); 59 dst += pitch; 60 vst2_lane_u8(dst, result, 1); 61 dst += pitch; 62 vst2_lane_u8(dst, result, 2); 63 dst += pitch; 64 vst2_lane_u8(dst, result, 3); 65 dst += pitch; 66 vst2_lane_u8(dst, result, 4); 67 dst += pitch; 68 vst2_lane_u8(dst, result, 5); 69 dst += pitch; 70 vst2_lane_u8(dst, result, 6); 71 dst += pitch; 72 vst2_lane_u8(dst, result, 7); 73 dst += pitch; 74 75 vst2_lane_u8(dst, result2, 0); 76 dst += pitch; 77 vst2_lane_u8(dst, result2, 1); 78 dst += pitch; 79 vst2_lane_u8(dst, result2, 2); 80 dst += pitch; 81 vst2_lane_u8(dst, result2, 3); 82 dst += pitch; 83 vst2_lane_u8(dst, result2, 4); 84 dst += pitch; 85 vst2_lane_u8(dst, result2, 5); 86 dst += pitch; 87 vst2_lane_u8(dst, result2, 6); 88 dst += pitch; 89 vst2_lane_u8(dst, result2, 7); 90} 91#endif // VPX_INCOMPATIBLE_GCC 92 93#ifdef VPX_INCOMPATIBLE_GCC 94static INLINE uint8x8x4_t read_4x8(unsigned char *src, int pitch) { 95 uint8x8x4_t x; 96 const uint8x8_t a = vld1_u8(src); 97 const uint8x8_t b = vld1_u8(src + pitch * 1); 98 const uint8x8_t c = vld1_u8(src + pitch * 2); 99 const uint8x8_t d = vld1_u8(src + pitch * 3); 100 const uint8x8_t e = vld1_u8(src + pitch * 4); 101 const uint8x8_t f = vld1_u8(src + pitch * 5); 102 const uint8x8_t g = vld1_u8(src + pitch * 6); 103 const uint8x8_t h = vld1_u8(src + pitch * 7); 104 const uint32x2x2_t r04_u32 = 105 vtrn_u32(vreinterpret_u32_u8(a), vreinterpret_u32_u8(e)); 106 const uint32x2x2_t r15_u32 = 107 vtrn_u32(vreinterpret_u32_u8(b), vreinterpret_u32_u8(f)); 108 const uint32x2x2_t r26_u32 = 109 vtrn_u32(vreinterpret_u32_u8(c), vreinterpret_u32_u8(g)); 110 const uint32x2x2_t r37_u32 = 111 vtrn_u32(vreinterpret_u32_u8(d), vreinterpret_u32_u8(h)); 112 const uint16x4x2_t r02_u16 = vtrn_u16(vreinterpret_u16_u32(r04_u32.val[0]), 113 vreinterpret_u16_u32(r26_u32.val[0])); 114 const uint16x4x2_t r13_u16 = vtrn_u16(vreinterpret_u16_u32(r15_u32.val[0]), 115 vreinterpret_u16_u32(r37_u32.val[0])); 116 const uint8x8x2_t r01_u8 = vtrn_u8(vreinterpret_u8_u16(r02_u16.val[0]), 117 vreinterpret_u8_u16(r13_u16.val[0])); 118 const uint8x8x2_t r23_u8 = vtrn_u8(vreinterpret_u8_u16(r02_u16.val[1]), 119 vreinterpret_u8_u16(r13_u16.val[1])); 120 /* 121 * after vtrn_u32 122 00 01 02 03 | 40 41 42 43 123 10 11 12 13 | 50 51 52 53 124 20 21 22 23 | 60 61 62 63 125 30 31 32 33 | 70 71 72 73 126 --- 127 * after vtrn_u16 128 00 01 20 21 | 40 41 60 61 129 02 03 22 23 | 42 43 62 63 130 10 11 30 31 | 50 51 70 71 131 12 13 32 33 | 52 52 72 73 132 133 00 01 20 21 | 40 41 60 61 134 10 11 30 31 | 50 51 70 71 135 02 03 22 23 | 42 43 62 63 136 12 13 32 33 | 52 52 72 73 137 --- 138 * after vtrn_u8 139 00 10 20 30 | 40 50 60 70 140 01 11 21 31 | 41 51 61 71 141 02 12 22 32 | 42 52 62 72 142 03 13 23 33 | 43 53 63 73 143 */ 144 x.val[0] = r01_u8.val[0]; 145 x.val[1] = r01_u8.val[1]; 146 x.val[2] = r23_u8.val[0]; 147 x.val[3] = r23_u8.val[1]; 148 149 return x; 150} 151#else 152static INLINE uint8x8x4_t read_4x8(unsigned char *src, int pitch) { 153 uint8x8x4_t x; 154 x.val[0] = x.val[1] = x.val[2] = x.val[3] = vdup_n_u8(0); 155 x = vld4_lane_u8(src, x, 0); 156 src += pitch; 157 x = vld4_lane_u8(src, x, 1); 158 src += pitch; 159 x = vld4_lane_u8(src, x, 2); 160 src += pitch; 161 x = vld4_lane_u8(src, x, 3); 162 src += pitch; 163 x = vld4_lane_u8(src, x, 4); 164 src += pitch; 165 x = vld4_lane_u8(src, x, 5); 166 src += pitch; 167 x = vld4_lane_u8(src, x, 6); 168 src += pitch; 169 x = vld4_lane_u8(src, x, 7); 170 return x; 171} 172#endif // VPX_INCOMPATIBLE_GCC 173 174static INLINE void vp8_loop_filter_simple_vertical_edge_neon( 175 unsigned char *s, int p, const unsigned char *blimit) { 176 unsigned char *src1; 177 uint8x16_t qblimit, q0u8; 178 uint8x16_t q3u8, q4u8, q5u8, q6u8, q7u8, q11u8, q12u8, q14u8, q15u8; 179 int16x8_t q2s16, q13s16, q11s16; 180 int8x8_t d28s8, d29s8; 181 int8x16_t q2s8, q3s8, q10s8, q11s8, q14s8; 182 uint8x8x4_t d0u8x4; // d6, d7, d8, d9 183 uint8x8x4_t d1u8x4; // d10, d11, d12, d13 184 uint8x8x2_t d2u8x2; // d12, d13 185 uint8x8x2_t d3u8x2; // d14, d15 186 187 qblimit = vdupq_n_u8(*blimit); 188 189 src1 = s - 2; 190 d0u8x4 = read_4x8(src1, p); 191 src1 += p * 8; 192 d1u8x4 = read_4x8(src1, p); 193 194 q3u8 = vcombine_u8(d0u8x4.val[0], d1u8x4.val[0]); // d6 d10 195 q4u8 = vcombine_u8(d0u8x4.val[2], d1u8x4.val[2]); // d8 d12 196 q5u8 = vcombine_u8(d0u8x4.val[1], d1u8x4.val[1]); // d7 d11 197 q6u8 = vcombine_u8(d0u8x4.val[3], d1u8x4.val[3]); // d9 d13 198 199 q15u8 = vabdq_u8(q5u8, q4u8); 200 q14u8 = vabdq_u8(q3u8, q6u8); 201 202 q15u8 = vqaddq_u8(q15u8, q15u8); 203 q14u8 = vshrq_n_u8(q14u8, 1); 204 q0u8 = vdupq_n_u8(0x80); 205 q11s16 = vdupq_n_s16(3); 206 q15u8 = vqaddq_u8(q15u8, q14u8); 207 208 q3u8 = veorq_u8(q3u8, q0u8); 209 q4u8 = veorq_u8(q4u8, q0u8); 210 q5u8 = veorq_u8(q5u8, q0u8); 211 q6u8 = veorq_u8(q6u8, q0u8); 212 213 q15u8 = vcgeq_u8(qblimit, q15u8); 214 215 q2s16 = vsubl_s8(vget_low_s8(vreinterpretq_s8_u8(q4u8)), 216 vget_low_s8(vreinterpretq_s8_u8(q5u8))); 217 q13s16 = vsubl_s8(vget_high_s8(vreinterpretq_s8_u8(q4u8)), 218 vget_high_s8(vreinterpretq_s8_u8(q5u8))); 219 220 q14s8 = vqsubq_s8(vreinterpretq_s8_u8(q3u8), vreinterpretq_s8_u8(q6u8)); 221 222 q2s16 = vmulq_s16(q2s16, q11s16); 223 q13s16 = vmulq_s16(q13s16, q11s16); 224 225 q11u8 = vdupq_n_u8(3); 226 q12u8 = vdupq_n_u8(4); 227 228 q2s16 = vaddw_s8(q2s16, vget_low_s8(q14s8)); 229 q13s16 = vaddw_s8(q13s16, vget_high_s8(q14s8)); 230 231 d28s8 = vqmovn_s16(q2s16); 232 d29s8 = vqmovn_s16(q13s16); 233 q14s8 = vcombine_s8(d28s8, d29s8); 234 235 q14s8 = vandq_s8(q14s8, vreinterpretq_s8_u8(q15u8)); 236 237 q2s8 = vqaddq_s8(q14s8, vreinterpretq_s8_u8(q11u8)); 238 q3s8 = vqaddq_s8(q14s8, vreinterpretq_s8_u8(q12u8)); 239 q2s8 = vshrq_n_s8(q2s8, 3); 240 q14s8 = vshrq_n_s8(q3s8, 3); 241 242 q11s8 = vqaddq_s8(vreinterpretq_s8_u8(q5u8), q2s8); 243 q10s8 = vqsubq_s8(vreinterpretq_s8_u8(q4u8), q14s8); 244 245 q6u8 = veorq_u8(vreinterpretq_u8_s8(q11s8), q0u8); 246 q7u8 = veorq_u8(vreinterpretq_u8_s8(q10s8), q0u8); 247 248 d2u8x2.val[0] = vget_low_u8(q6u8); // d12 249 d2u8x2.val[1] = vget_low_u8(q7u8); // d14 250 d3u8x2.val[0] = vget_high_u8(q6u8); // d13 251 d3u8x2.val[1] = vget_high_u8(q7u8); // d15 252 253 src1 = s - 1; 254 write_2x8(src1, p, d2u8x2, d3u8x2); 255} 256 257void vp8_loop_filter_bvs_neon(unsigned char *y_ptr, int y_stride, 258 const unsigned char *blimit) { 259 y_ptr += 4; 260 vp8_loop_filter_simple_vertical_edge_neon(y_ptr, y_stride, blimit); 261 y_ptr += 4; 262 vp8_loop_filter_simple_vertical_edge_neon(y_ptr, y_stride, blimit); 263 y_ptr += 4; 264 vp8_loop_filter_simple_vertical_edge_neon(y_ptr, y_stride, blimit); 265 return; 266} 267 268void vp8_loop_filter_mbvs_neon(unsigned char *y_ptr, int y_stride, 269 const unsigned char *blimit) { 270 vp8_loop_filter_simple_vertical_edge_neon(y_ptr, y_stride, blimit); 271 return; 272} 273