| 1 | /* |
| 2 | * Copyright (c) 2009 Mans Rullgard <mans@mansr.com> |
| 3 | * |
| 4 | * This file is part of FFmpeg. |
| 5 | * |
| 6 | * FFmpeg is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or (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 GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with FFmpeg; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | */ |
| 20 | |
| 21 | #include "libavutil/arm/asm.S" |
| 22 | |
| 23 | function ff_pix_abs16_armv6, export=1 |
| 24 | ldr r0, [sp] |
| 25 | push {r4-r9, lr} |
| 26 | mov r12, #0 |
| 27 | mov lr, #0 |
| 28 | ldm r1, {r4-r7} |
| 29 | ldr r8, [r2] |
| 30 | 1: |
| 31 | ldr r9, [r2, #4] |
| 32 | pld [r1, r3] |
| 33 | usada8 r12, r4, r8, r12 |
| 34 | ldr r8, [r2, #8] |
| 35 | pld [r2, r3] |
| 36 | usada8 lr, r5, r9, lr |
| 37 | ldr r9, [r2, #12] |
| 38 | usada8 r12, r6, r8, r12 |
| 39 | subs r0, r0, #1 |
| 40 | usada8 lr, r7, r9, lr |
| 41 | beq 2f |
| 42 | add r1, r1, r3 |
| 43 | ldm r1, {r4-r7} |
| 44 | add r2, r2, r3 |
| 45 | ldr r8, [r2] |
| 46 | b 1b |
| 47 | 2: |
| 48 | add r0, r12, lr |
| 49 | pop {r4-r9, pc} |
| 50 | endfunc |
| 51 | |
| 52 | function ff_pix_abs16_x2_armv6, export=1 |
| 53 | ldr r12, [sp] |
| 54 | push {r4-r11, lr} |
| 55 | mov r0, #0 |
| 56 | mov lr, #1 |
| 57 | orr lr, lr, lr, lsl #8 |
| 58 | orr lr, lr, lr, lsl #16 |
| 59 | 1: |
| 60 | ldr r8, [r2] |
| 61 | ldr r9, [r2, #4] |
| 62 | lsr r10, r8, #8 |
| 63 | ldr r4, [r1] |
| 64 | lsr r6, r9, #8 |
| 65 | orr r10, r10, r9, lsl #24 |
| 66 | ldr r5, [r2, #8] |
| 67 | eor r11, r8, r10 |
| 68 | uhadd8 r7, r8, r10 |
| 69 | orr r6, r6, r5, lsl #24 |
| 70 | and r11, r11, lr |
| 71 | uadd8 r7, r7, r11 |
| 72 | ldr r8, [r1, #4] |
| 73 | usada8 r0, r4, r7, r0 |
| 74 | eor r7, r9, r6 |
| 75 | lsr r10, r5, #8 |
| 76 | and r7, r7, lr |
| 77 | uhadd8 r4, r9, r6 |
| 78 | ldr r6, [r2, #12] |
| 79 | uadd8 r4, r4, r7 |
| 80 | pld [r1, r3] |
| 81 | orr r10, r10, r6, lsl #24 |
| 82 | usada8 r0, r8, r4, r0 |
| 83 | ldr r4, [r1, #8] |
| 84 | eor r11, r5, r10 |
| 85 | ldrb r7, [r2, #16] |
| 86 | and r11, r11, lr |
| 87 | uhadd8 r8, r5, r10 |
| 88 | ldr r5, [r1, #12] |
| 89 | uadd8 r8, r8, r11 |
| 90 | pld [r2, r3] |
| 91 | lsr r10, r6, #8 |
| 92 | usada8 r0, r4, r8, r0 |
| 93 | orr r10, r10, r7, lsl #24 |
| 94 | subs r12, r12, #1 |
| 95 | eor r11, r6, r10 |
| 96 | add r1, r1, r3 |
| 97 | uhadd8 r9, r6, r10 |
| 98 | and r11, r11, lr |
| 99 | uadd8 r9, r9, r11 |
| 100 | add r2, r2, r3 |
| 101 | usada8 r0, r5, r9, r0 |
| 102 | bgt 1b |
| 103 | |
| 104 | pop {r4-r11, pc} |
| 105 | endfunc |
| 106 | |
| 107 | .macro usad_y2 p0, p1, p2, p3, n0, n1, n2, n3 |
| 108 | ldr \n0, [r2] |
| 109 | eor \n1, \p0, \n0 |
| 110 | uhadd8 \p0, \p0, \n0 |
| 111 | and \n1, \n1, lr |
| 112 | ldr \n2, [r1] |
| 113 | uadd8 \p0, \p0, \n1 |
| 114 | ldr \n1, [r2, #4] |
| 115 | usada8 r0, \p0, \n2, r0 |
| 116 | pld [r1, r3] |
| 117 | eor \n3, \p1, \n1 |
| 118 | uhadd8 \p1, \p1, \n1 |
| 119 | and \n3, \n3, lr |
| 120 | ldr \p0, [r1, #4] |
| 121 | uadd8 \p1, \p1, \n3 |
| 122 | ldr \n2, [r2, #8] |
| 123 | usada8 r0, \p1, \p0, r0 |
| 124 | pld [r2, r3] |
| 125 | eor \p0, \p2, \n2 |
| 126 | uhadd8 \p2, \p2, \n2 |
| 127 | and \p0, \p0, lr |
| 128 | ldr \p1, [r1, #8] |
| 129 | uadd8 \p2, \p2, \p0 |
| 130 | ldr \n3, [r2, #12] |
| 131 | usada8 r0, \p2, \p1, r0 |
| 132 | eor \p1, \p3, \n3 |
| 133 | uhadd8 \p3, \p3, \n3 |
| 134 | and \p1, \p1, lr |
| 135 | ldr \p0, [r1, #12] |
| 136 | uadd8 \p3, \p3, \p1 |
| 137 | add r1, r1, r3 |
| 138 | usada8 r0, \p3, \p0, r0 |
| 139 | add r2, r2, r3 |
| 140 | .endm |
| 141 | |
| 142 | function ff_pix_abs16_y2_armv6, export=1 |
| 143 | pld [r1] |
| 144 | pld [r2] |
| 145 | ldr r12, [sp] |
| 146 | push {r4-r11, lr} |
| 147 | mov r0, #0 |
| 148 | mov lr, #1 |
| 149 | orr lr, lr, lr, lsl #8 |
| 150 | orr lr, lr, lr, lsl #16 |
| 151 | ldr r4, [r2] |
| 152 | ldr r5, [r2, #4] |
| 153 | ldr r6, [r2, #8] |
| 154 | ldr r7, [r2, #12] |
| 155 | add r2, r2, r3 |
| 156 | 1: |
| 157 | usad_y2 r4, r5, r6, r7, r8, r9, r10, r11 |
| 158 | subs r12, r12, #2 |
| 159 | usad_y2 r8, r9, r10, r11, r4, r5, r6, r7 |
| 160 | bgt 1b |
| 161 | |
| 162 | pop {r4-r11, pc} |
| 163 | endfunc |
| 164 | |
| 165 | function ff_pix_abs8_armv6, export=1 |
| 166 | pld [r2, r3] |
| 167 | ldr r12, [sp] |
| 168 | push {r4-r9, lr} |
| 169 | mov r0, #0 |
| 170 | mov lr, #0 |
| 171 | ldrd_post r4, r5, r1, r3 |
| 172 | 1: |
| 173 | subs r12, r12, #2 |
| 174 | ldr r7, [r2, #4] |
| 175 | ldr_post r6, r2, r3 |
| 176 | ldrd_post r8, r9, r1, r3 |
| 177 | usada8 r0, r4, r6, r0 |
| 178 | pld [r2, r3] |
| 179 | usada8 lr, r5, r7, lr |
| 180 | ldr r7, [r2, #4] |
| 181 | ldr_post r6, r2, r3 |
| 182 | beq 2f |
| 183 | ldrd_post r4, r5, r1, r3 |
| 184 | usada8 r0, r8, r6, r0 |
| 185 | pld [r2, r3] |
| 186 | usada8 lr, r9, r7, lr |
| 187 | b 1b |
| 188 | 2: |
| 189 | usada8 r0, r8, r6, r0 |
| 190 | usada8 lr, r9, r7, lr |
| 191 | add r0, r0, lr |
| 192 | pop {r4-r9, pc} |
| 193 | endfunc |
| 194 | |
| 195 | function ff_sse16_armv6, export=1 |
| 196 | ldr r12, [sp] |
| 197 | push {r4-r9, lr} |
| 198 | mov r0, #0 |
| 199 | 1: |
| 200 | ldrd r4, r5, [r1] |
| 201 | ldr r8, [r2] |
| 202 | uxtb16 lr, r4 |
| 203 | uxtb16 r4, r4, ror #8 |
| 204 | uxtb16 r9, r8 |
| 205 | uxtb16 r8, r8, ror #8 |
| 206 | ldr r7, [r2, #4] |
| 207 | usub16 lr, lr, r9 |
| 208 | usub16 r4, r4, r8 |
| 209 | smlad r0, lr, lr, r0 |
| 210 | uxtb16 r6, r5 |
| 211 | uxtb16 lr, r5, ror #8 |
| 212 | uxtb16 r8, r7 |
| 213 | uxtb16 r9, r7, ror #8 |
| 214 | smlad r0, r4, r4, r0 |
| 215 | ldrd r4, r5, [r1, #8] |
| 216 | usub16 r6, r6, r8 |
| 217 | usub16 r8, lr, r9 |
| 218 | ldr r7, [r2, #8] |
| 219 | smlad r0, r6, r6, r0 |
| 220 | uxtb16 lr, r4 |
| 221 | uxtb16 r4, r4, ror #8 |
| 222 | uxtb16 r9, r7 |
| 223 | uxtb16 r7, r7, ror #8 |
| 224 | smlad r0, r8, r8, r0 |
| 225 | ldr r8, [r2, #12] |
| 226 | usub16 lr, lr, r9 |
| 227 | usub16 r4, r4, r7 |
| 228 | smlad r0, lr, lr, r0 |
| 229 | uxtb16 r6, r5 |
| 230 | uxtb16 r5, r5, ror #8 |
| 231 | uxtb16 r9, r8 |
| 232 | uxtb16 r8, r8, ror #8 |
| 233 | smlad r0, r4, r4, r0 |
| 234 | usub16 r6, r6, r9 |
| 235 | usub16 r5, r5, r8 |
| 236 | smlad r0, r6, r6, r0 |
| 237 | add r1, r1, r3 |
| 238 | add r2, r2, r3 |
| 239 | subs r12, r12, #1 |
| 240 | smlad r0, r5, r5, r0 |
| 241 | bgt 1b |
| 242 | |
| 243 | pop {r4-r9, pc} |
| 244 | endfunc |