frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2011 The LibYuv 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 "libyuv/basic_types.h" |
fbarchard@google.com | 15c3d45 | 2011-11-17 22:13:17 +0000 | [diff] [blame] | 12 | #include "row.h" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 13 | |
fbarchard@google.com | fe5ff7e | 2011-12-10 07:45:58 +0000 | [diff] [blame^] | 14 | #ifdef __cplusplus |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 15 | namespace libyuv { |
fbarchard@google.com | fe5ff7e | 2011-12-10 07:45:58 +0000 | [diff] [blame^] | 16 | extern "C" { |
| 17 | #endif |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 18 | |
fbarchard@google.com | 15c3d45 | 2011-11-17 22:13:17 +0000 | [diff] [blame] | 19 | #if defined(__ARM_NEON__) && !defined(YUV_DISABLE_ASM) |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 20 | |
fbarchard@google.com | 2430e04 | 2011-11-11 21:57:06 +0000 | [diff] [blame] | 21 | void ReverseRow_NEON(const uint8* src, uint8* dst, int width) { |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 22 | asm volatile ( |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 23 | // compute where to start writing destination |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 24 | "add %1, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 25 | |
| 26 | // work on segments that are multiples of 16 |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 27 | "lsrs r3, %2, #4 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 28 | |
| 29 | // the output is written in two block. 8 bytes followed |
| 30 | // by another 8. reading is done sequentially, from left to |
| 31 | // right. writing is done from right to left in block sizes |
| 32 | // %1, the destination pointer is incremented after writing |
| 33 | // the first of the two blocks. need to subtract that 8 off |
| 34 | // along with 16 to get the next location. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 35 | "mov r3, #-24 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 36 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 37 | "beq 2f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 38 | |
| 39 | // back of destination by the size of the register that is |
| 40 | // going to be reversed |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 41 | "sub %1, #16 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 42 | |
| 43 | // the loop needs to run on blocks of 16. what will be left |
| 44 | // over is either a negative number, the residuals that need |
| 45 | // to be done, or 0. if this isn't subtracted off here the |
| 46 | // loop will run one extra time. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 47 | "sub %2, #16 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 48 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 49 | "1: \n" |
| 50 | "vld1.8 {q0}, [%0]! \n" // src += 16 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 51 | |
| 52 | // reverse the bytes in the 64 bit segments. unable to reverse |
| 53 | // the bytes in the entire 128 bits in one go. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 54 | "vrev64.8 q0, q0 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 55 | |
| 56 | // because of the inability to reverse the entire 128 bits |
| 57 | // reverse the writing out of the two 64 bit segments. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 58 | "vst1.8 {d1}, [%1]! \n" |
| 59 | "vst1.8 {d0}, [%1], r3 \n" // dst -= 16 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 60 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 61 | "subs %2, #16 \n" |
| 62 | "bge 1b \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 63 | |
| 64 | // add 16 back to the counter. if the result is 0 there is no |
| 65 | // residuals so jump past |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 66 | "adds %2, #16 \n" |
| 67 | "beq 5f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 68 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 69 | "add %1, #16 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 70 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 71 | "2: \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 72 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 73 | "mov r3, #-3 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 74 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 75 | "sub %1, #2 \n" |
| 76 | "subs %2, #2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 77 | // check for 16*n+1 scenarios where segments_of_2 should not |
| 78 | // be run, but there is something left over. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 79 | "blt 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 80 | |
| 81 | // do this in neon registers as per |
| 82 | // http://blogs.arm.com/software-enablement/196-coding-for-neon-part-2-dealing-with-leftovers/ |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 83 | "3: \n" |
| 84 | "vld2.8 {d0[0], d1[0]}, [%0]! \n" // src += 2 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 85 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 86 | "vst1.8 {d1[0]}, [%1]! \n" |
| 87 | "vst1.8 {d0[0]}, [%1], r3 \n" // dst -= 2 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 88 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 89 | "subs %2, #2 \n" |
| 90 | "bge 3b \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 91 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 92 | "adds %2, #2 \n" |
| 93 | "beq 5f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 94 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 95 | "4: \n" |
| 96 | "add %1, #1 \n" |
| 97 | "vld1.8 {d0[0]}, [%0] \n" |
| 98 | "vst1.8 {d0[0]}, [%1] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 99 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 100 | "5: \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 101 | : "+r"(src), // %0 |
| 102 | "+r"(dst), // %1 |
| 103 | "+r"(width) // %2 |
| 104 | : |
| 105 | : "memory", "cc", "r3", "q0" |
| 106 | ); |
| 107 | } |
| 108 | |
| 109 | static const uint8 vtbl_4x4_transpose[16] __attribute__((vector_size(16))) = |
| 110 | { 0, 4, 8, 12, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15 }; |
| 111 | |
| 112 | void TransposeWx8_NEON(const uint8* src, int src_stride, |
| 113 | uint8* dst, int dst_stride, |
| 114 | int width) { |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 115 | asm volatile ( |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 116 | // loops are on blocks of 8. loop will stop when |
| 117 | // counter gets to or below 0. starting the counter |
| 118 | // at w-8 allow for this |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 119 | "sub %4, #8 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 120 | |
| 121 | // handle 8x8 blocks. this should be the majority of the plane |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 122 | "1: \n" |
| 123 | "mov r9, %0 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 124 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 125 | "vld1.8 {d0}, [r9], %1 \n" |
| 126 | "vld1.8 {d1}, [r9], %1 \n" |
| 127 | "vld1.8 {d2}, [r9], %1 \n" |
| 128 | "vld1.8 {d3}, [r9], %1 \n" |
| 129 | "vld1.8 {d4}, [r9], %1 \n" |
| 130 | "vld1.8 {d5}, [r9], %1 \n" |
| 131 | "vld1.8 {d6}, [r9], %1 \n" |
| 132 | "vld1.8 {d7}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 133 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 134 | "vtrn.8 d1, d0 \n" |
| 135 | "vtrn.8 d3, d2 \n" |
| 136 | "vtrn.8 d5, d4 \n" |
| 137 | "vtrn.8 d7, d6 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 138 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 139 | "vtrn.16 d1, d3 \n" |
| 140 | "vtrn.16 d0, d2 \n" |
| 141 | "vtrn.16 d5, d7 \n" |
| 142 | "vtrn.16 d4, d6 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 143 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 144 | "vtrn.32 d1, d5 \n" |
| 145 | "vtrn.32 d0, d4 \n" |
| 146 | "vtrn.32 d3, d7 \n" |
| 147 | "vtrn.32 d2, d6 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 148 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 149 | "vrev16.8 q0, q0 \n" |
| 150 | "vrev16.8 q1, q1 \n" |
| 151 | "vrev16.8 q2, q2 \n" |
| 152 | "vrev16.8 q3, q3 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 153 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 154 | "mov r9, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 155 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 156 | "vst1.8 {d1}, [r9], %3 \n" |
| 157 | "vst1.8 {d0}, [r9], %3 \n" |
| 158 | "vst1.8 {d3}, [r9], %3 \n" |
| 159 | "vst1.8 {d2}, [r9], %3 \n" |
| 160 | "vst1.8 {d5}, [r9], %3 \n" |
| 161 | "vst1.8 {d4}, [r9], %3 \n" |
| 162 | "vst1.8 {d7}, [r9], %3 \n" |
| 163 | "vst1.8 {d6}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 164 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 165 | "add %0, #8 \n" // src += 8 |
| 166 | "add %2, %2, %3, lsl #3 \n" // dst += 8 * dst_stride |
| 167 | "subs %4, #8 \n" // w -= 8 |
| 168 | "bge 1b \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 169 | |
| 170 | // add 8 back to counter. if the result is 0 there are |
| 171 | // no residuals. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 172 | "adds %4, #8 \n" |
| 173 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 174 | |
| 175 | // some residual, so between 1 and 7 lines left to transpose |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 176 | "cmp %4, #2 \n" |
| 177 | "blt 3f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 178 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 179 | "cmp %4, #4 \n" |
| 180 | "blt 2f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 181 | |
| 182 | // 4x8 block |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 183 | "mov r9, %0 \n" |
| 184 | "vld1.32 {d0[0]}, [r9], %1 \n" |
| 185 | "vld1.32 {d0[1]}, [r9], %1 \n" |
| 186 | "vld1.32 {d1[0]}, [r9], %1 \n" |
| 187 | "vld1.32 {d1[1]}, [r9], %1 \n" |
| 188 | "vld1.32 {d2[0]}, [r9], %1 \n" |
| 189 | "vld1.32 {d2[1]}, [r9], %1 \n" |
| 190 | "vld1.32 {d3[0]}, [r9], %1 \n" |
| 191 | "vld1.32 {d3[1]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 192 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 193 | "mov r9, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 194 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 195 | "vld1.8 {q3}, [%5] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 196 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 197 | "vtbl.8 d4, {d0, d1}, d6 \n" |
| 198 | "vtbl.8 d5, {d0, d1}, d7 \n" |
| 199 | "vtbl.8 d0, {d2, d3}, d6 \n" |
| 200 | "vtbl.8 d1, {d2, d3}, d7 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 201 | |
| 202 | // TODO: rework shuffle above to write |
| 203 | // out with 4 instead of 8 writes |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 204 | "vst1.32 {d4[0]}, [r9], %3 \n" |
| 205 | "vst1.32 {d4[1]}, [r9], %3 \n" |
| 206 | "vst1.32 {d5[0]}, [r9], %3 \n" |
| 207 | "vst1.32 {d5[1]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 208 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 209 | "add r9, %2, #4 \n" |
| 210 | "vst1.32 {d0[0]}, [r9], %3 \n" |
| 211 | "vst1.32 {d0[1]}, [r9], %3 \n" |
| 212 | "vst1.32 {d1[0]}, [r9], %3 \n" |
| 213 | "vst1.32 {d1[1]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 214 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 215 | "add %0, #4 \n" // src += 4 |
| 216 | "add %2, %2, %3, lsl #2 \n" // dst += 4 * dst_stride |
| 217 | "subs %4, #4 \n" // w -= 4 |
| 218 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 219 | |
| 220 | // some residual, check to see if it includes a 2x8 block, |
| 221 | // or less |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 222 | "cmp %4, #2 \n" |
| 223 | "blt 3f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 224 | |
| 225 | // 2x8 block |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 226 | "2: \n" |
| 227 | "mov r9, %0 \n" |
| 228 | "vld1.16 {d0[0]}, [r9], %1 \n" |
| 229 | "vld1.16 {d1[0]}, [r9], %1 \n" |
| 230 | "vld1.16 {d0[1]}, [r9], %1 \n" |
| 231 | "vld1.16 {d1[1]}, [r9], %1 \n" |
| 232 | "vld1.16 {d0[2]}, [r9], %1 \n" |
| 233 | "vld1.16 {d1[2]}, [r9], %1 \n" |
| 234 | "vld1.16 {d0[3]}, [r9], %1 \n" |
| 235 | "vld1.16 {d1[3]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 236 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 237 | "vtrn.8 d0, d1 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 238 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 239 | "mov r9, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 240 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 241 | "vst1.64 {d0}, [r9], %3 \n" |
| 242 | "vst1.64 {d1}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 243 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 244 | "add %0, #2 \n" // src += 2 |
| 245 | "add %2, %2, %3, lsl #1 \n" // dst += 2 * dst_stride |
| 246 | "subs %4, #2 \n" // w -= 2 |
| 247 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 248 | |
| 249 | // 1x8 block |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 250 | "3: \n" |
| 251 | "vld1.8 {d0[0]}, [%0], %1 \n" |
| 252 | "vld1.8 {d0[1]}, [%0], %1 \n" |
| 253 | "vld1.8 {d0[2]}, [%0], %1 \n" |
| 254 | "vld1.8 {d0[3]}, [%0], %1 \n" |
| 255 | "vld1.8 {d0[4]}, [%0], %1 \n" |
| 256 | "vld1.8 {d0[5]}, [%0], %1 \n" |
| 257 | "vld1.8 {d0[6]}, [%0], %1 \n" |
| 258 | "vld1.8 {d0[7]}, [%0] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 259 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 260 | "vst1.64 {d0}, [%2] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 261 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 262 | "4: \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 263 | |
| 264 | : "+r"(src), // %0 |
| 265 | "+r"(src_stride), // %1 |
| 266 | "+r"(dst), // %2 |
| 267 | "+r"(dst_stride), // %3 |
| 268 | "+r"(width) // %4 |
| 269 | : "r"(vtbl_4x4_transpose) // %5 |
| 270 | : "memory", "cc", "r9", "q0", "q1", "q2", "q3" |
| 271 | ); |
| 272 | } |
| 273 | |
fbarchard@google.com | 2430e04 | 2011-11-11 21:57:06 +0000 | [diff] [blame] | 274 | void ReverseRowUV_NEON(const uint8* src, |
| 275 | uint8* dst_a, uint8* dst_b, |
| 276 | int width) { |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 277 | asm volatile ( |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 278 | // compute where to start writing destination |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 279 | "add %1, %3 \n" // dst_a + width |
| 280 | "add %2, %3 \n" // dst_b + width |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 281 | |
| 282 | // work on input segments that are multiples of 16, but |
| 283 | // width that has been passed is output segments, half |
| 284 | // the size of input. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 285 | "lsrs r12, %3, #3 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 286 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 287 | "beq 2f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 288 | |
| 289 | // the output is written in to two blocks. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 290 | "mov r12, #-8 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 291 | |
| 292 | // back of destination by the size of the register that is |
| 293 | // going to be reversed |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 294 | "sub %1, #8 \n" |
| 295 | "sub %2, #8 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 296 | |
| 297 | // the loop needs to run on blocks of 8. what will be left |
| 298 | // over is either a negative number, the residuals that need |
| 299 | // to be done, or 0. if this isn't subtracted off here the |
| 300 | // loop will run one extra time. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 301 | "sub %3, #8 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 302 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 303 | "1: \n" |
| 304 | "vld2.8 {d0, d1}, [%0]! \n" // src += 16 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 305 | |
| 306 | // reverse the bytes in the 64 bit segments |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 307 | "vrev64.8 q0, q0 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 308 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 309 | "vst1.8 {d0}, [%1], r12 \n" // dst_a -= 8 |
| 310 | "vst1.8 {d1}, [%2], r12 \n" // dst_b -= 8 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 311 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 312 | "subs %3, #8 \n" |
| 313 | "bge 1b \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 314 | |
| 315 | // add 8 back to the counter. if the result is 0 there is no |
| 316 | // residuals so return |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 317 | "adds %3, #8 \n" |
| 318 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 319 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 320 | "add %1, #8 \n" |
| 321 | "add %2, #8 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 322 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 323 | "2: \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 324 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 325 | "mov r12, #-1 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 326 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 327 | "sub %1, #1 \n" |
| 328 | "sub %2, #1 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 329 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 330 | "3: \n" |
| 331 | "vld2.8 {d0[0], d1[0]}, [%0]! \n" // src += 2 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 332 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 333 | "vst1.8 {d0[0]}, [%1], r12 \n" // dst_a -= 1 |
| 334 | "vst1.8 {d1[0]}, [%2], r12 \n" // dst_b -= 1 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 335 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 336 | "subs %3, %3, #1 \n" |
| 337 | "bgt 3b \n" |
| 338 | "4: \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 339 | : "+r"(src), // %0 |
| 340 | "+r"(dst_a), // %1 |
| 341 | "+r"(dst_b), // %2 |
| 342 | "+r"(width) // %3 |
| 343 | : |
| 344 | : "memory", "cc", "r12", "q0" |
| 345 | ); |
| 346 | } |
| 347 | |
| 348 | static const uint8 vtbl_4x4_transpose_di[16] __attribute__((vector_size(16))) = |
| 349 | { 0, 8, 1, 9, 2, 10, 3, 11, 4, 12, 5, 13, 6, 14, 7, 15 }; |
| 350 | |
| 351 | void TransposeUVWx8_NEON(const uint8* src, int src_stride, |
| 352 | uint8* dst_a, int dst_stride_a, |
| 353 | uint8* dst_b, int dst_stride_b, |
| 354 | int width) { |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 355 | asm volatile ( |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 356 | // loops are on blocks of 8. loop will stop when |
| 357 | // counter gets to or below 0. starting the counter |
| 358 | // at w-8 allow for this |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 359 | "sub %6, #8 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 360 | |
| 361 | // handle 8x8 blocks. this should be the majority of the plane |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 362 | "1: \n" |
| 363 | "mov r9, %0 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 364 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 365 | "vld2.8 {d0, d1}, [r9], %1 \n" |
| 366 | "vld2.8 {d2, d3}, [r9], %1 \n" |
| 367 | "vld2.8 {d4, d5}, [r9], %1 \n" |
| 368 | "vld2.8 {d6, d7}, [r9], %1 \n" |
| 369 | "vld2.8 {d16, d17}, [r9], %1 \n" |
| 370 | "vld2.8 {d18, d19}, [r9], %1 \n" |
| 371 | "vld2.8 {d20, d21}, [r9], %1 \n" |
| 372 | "vld2.8 {d22, d23}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 373 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 374 | "vtrn.8 q1, q0 \n" |
| 375 | "vtrn.8 q3, q2 \n" |
| 376 | "vtrn.8 q9, q8 \n" |
| 377 | "vtrn.8 q11, q10 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 378 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 379 | "vtrn.16 q1, q3 \n" |
| 380 | "vtrn.16 q0, q2 \n" |
| 381 | "vtrn.16 q9, q11 \n" |
| 382 | "vtrn.16 q8, q10 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 383 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 384 | "vtrn.32 q1, q9 \n" |
| 385 | "vtrn.32 q0, q8 \n" |
| 386 | "vtrn.32 q3, q11 \n" |
| 387 | "vtrn.32 q2, q10 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 388 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 389 | "vrev16.8 q0, q0 \n" |
| 390 | "vrev16.8 q1, q1 \n" |
| 391 | "vrev16.8 q2, q2 \n" |
| 392 | "vrev16.8 q3, q3 \n" |
| 393 | "vrev16.8 q8, q8 \n" |
| 394 | "vrev16.8 q9, q9 \n" |
| 395 | "vrev16.8 q10, q10 \n" |
| 396 | "vrev16.8 q11, q11 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 397 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 398 | "mov r9, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 399 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 400 | "vst1.8 {d2}, [r9], %3 \n" |
| 401 | "vst1.8 {d0}, [r9], %3 \n" |
| 402 | "vst1.8 {d6}, [r9], %3 \n" |
| 403 | "vst1.8 {d4}, [r9], %3 \n" |
| 404 | "vst1.8 {d18}, [r9], %3 \n" |
| 405 | "vst1.8 {d16}, [r9], %3 \n" |
| 406 | "vst1.8 {d22}, [r9], %3 \n" |
| 407 | "vst1.8 {d20}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 408 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 409 | "mov r9, %4 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 410 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 411 | "vst1.8 {d3}, [r9], %5 \n" |
| 412 | "vst1.8 {d1}, [r9], %5 \n" |
| 413 | "vst1.8 {d7}, [r9], %5 \n" |
| 414 | "vst1.8 {d5}, [r9], %5 \n" |
| 415 | "vst1.8 {d19}, [r9], %5 \n" |
| 416 | "vst1.8 {d17}, [r9], %5 \n" |
| 417 | "vst1.8 {d23}, [r9], %5 \n" |
| 418 | "vst1.8 {d21}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 419 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 420 | "add %0, #8*2 \n" // src += 8*2 |
| 421 | "add %2, %2, %3, lsl #3 \n" // dst_a += 8 * dst_stride_a |
| 422 | "add %4, %4, %5, lsl #3 \n" // dst_b += 8 * dst_stride_b |
| 423 | "subs %6, #8 \n" // w -= 8 |
| 424 | "bge 1b \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 425 | |
| 426 | // add 8 back to counter. if the result is 0 there are |
| 427 | // no residuals. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 428 | "adds %6, #8 \n" |
| 429 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 430 | |
| 431 | // some residual, so between 1 and 7 lines left to transpose |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 432 | "cmp %6, #2 \n" |
| 433 | "blt 3f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 434 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 435 | "cmp %6, #4 \n" |
| 436 | "blt 2f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 437 | |
| 438 | //TODO(frkoenig) : clean this up |
| 439 | // 4x8 block |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 440 | "mov r9, %0 \n" |
| 441 | "vld1.64 {d0}, [r9], %1 \n" |
| 442 | "vld1.64 {d1}, [r9], %1 \n" |
| 443 | "vld1.64 {d2}, [r9], %1 \n" |
| 444 | "vld1.64 {d3}, [r9], %1 \n" |
| 445 | "vld1.64 {d4}, [r9], %1 \n" |
| 446 | "vld1.64 {d5}, [r9], %1 \n" |
| 447 | "vld1.64 {d6}, [r9], %1 \n" |
| 448 | "vld1.64 {d7}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 449 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 450 | "vld1.8 {q15}, [%7] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 451 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 452 | "vtrn.8 q0, q1 \n" |
| 453 | "vtrn.8 q2, q3 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 454 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 455 | "vtbl.8 d16, {d0, d1}, d30 \n" |
| 456 | "vtbl.8 d17, {d0, d1}, d31 \n" |
| 457 | "vtbl.8 d18, {d2, d3}, d30 \n" |
| 458 | "vtbl.8 d19, {d2, d3}, d31 \n" |
| 459 | "vtbl.8 d20, {d4, d5}, d30 \n" |
| 460 | "vtbl.8 d21, {d4, d5}, d31 \n" |
| 461 | "vtbl.8 d22, {d6, d7}, d30 \n" |
| 462 | "vtbl.8 d23, {d6, d7}, d31 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 463 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 464 | "mov r9, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 465 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 466 | "vst1.32 {d16[0]}, [r9], %3 \n" |
| 467 | "vst1.32 {d16[1]}, [r9], %3 \n" |
| 468 | "vst1.32 {d17[0]}, [r9], %3 \n" |
| 469 | "vst1.32 {d17[1]}, [r9], %3 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 470 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 471 | "add r9, %2, #4 \n" |
| 472 | "vst1.32 {d20[0]}, [r9], %3 \n" |
| 473 | "vst1.32 {d20[1]}, [r9], %3 \n" |
| 474 | "vst1.32 {d21[0]}, [r9], %3 \n" |
| 475 | "vst1.32 {d21[1]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 476 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 477 | "mov r9, %4 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 478 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 479 | "vst1.32 {d18[0]}, [r9], %5 \n" |
| 480 | "vst1.32 {d18[1]}, [r9], %5 \n" |
| 481 | "vst1.32 {d19[0]}, [r9], %5 \n" |
| 482 | "vst1.32 {d19[1]}, [r9], %5 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 483 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 484 | "add r9, %4, #4 \n" |
| 485 | "vst1.32 {d22[0]}, [r9], %5 \n" |
| 486 | "vst1.32 {d22[1]}, [r9], %5 \n" |
| 487 | "vst1.32 {d23[0]}, [r9], %5 \n" |
| 488 | "vst1.32 {d23[1]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 489 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 490 | "add %0, #4*2 \n" // src += 4 * 2 |
| 491 | "add %2, %2, %3, lsl #2 \n" // dst_a += 4 * dst_stride_a |
| 492 | "add %4, %4, %5, lsl #2 \n" // dst_b += 4 * dst_stride_b |
| 493 | "subs %6, #4 \n" // w -= 4 |
| 494 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 495 | |
| 496 | // some residual, check to see if it includes a 2x8 block, |
| 497 | // or less |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 498 | "cmp %6, #2 \n" |
| 499 | "blt 3f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 500 | |
| 501 | // 2x8 block |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 502 | "2: \n" |
| 503 | "mov r9, %0 \n" |
| 504 | "vld2.16 {d0[0], d2[0]}, [r9], %1 \n" |
| 505 | "vld2.16 {d1[0], d3[0]}, [r9], %1 \n" |
| 506 | "vld2.16 {d0[1], d2[1]}, [r9], %1 \n" |
| 507 | "vld2.16 {d1[1], d3[1]}, [r9], %1 \n" |
| 508 | "vld2.16 {d0[2], d2[2]}, [r9], %1 \n" |
| 509 | "vld2.16 {d1[2], d3[2]}, [r9], %1 \n" |
| 510 | "vld2.16 {d0[3], d2[3]}, [r9], %1 \n" |
| 511 | "vld2.16 {d1[3], d3[3]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 512 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 513 | "vtrn.8 d0, d1 \n" |
| 514 | "vtrn.8 d2, d3 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 515 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 516 | "mov r9, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 517 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 518 | "vst1.64 {d0}, [r9], %3 \n" |
| 519 | "vst1.64 {d2}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 520 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 521 | "mov r9, %4 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 522 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 523 | "vst1.64 {d1}, [r9], %5 \n" |
| 524 | "vst1.64 {d3}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 525 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 526 | "add %0, #2*2 \n" // src += 2 * 2 |
| 527 | "add %2, %2, %3, lsl #1 \n" // dst_a += 2 * dst_stride_a |
| 528 | "add %4, %4, %5, lsl #1 \n" // dst_b += 2 * dst_stride_b |
| 529 | "subs %6, #2 \n" // w -= 2 |
| 530 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 531 | |
| 532 | // 1x8 block |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 533 | "3: \n" |
| 534 | "vld2.8 {d0[0], d1[0]}, [%0], %1 \n" |
| 535 | "vld2.8 {d0[1], d1[1]}, [%0], %1 \n" |
| 536 | "vld2.8 {d0[2], d1[2]}, [%0], %1 \n" |
| 537 | "vld2.8 {d0[3], d1[3]}, [%0], %1 \n" |
| 538 | "vld2.8 {d0[4], d1[4]}, [%0], %1 \n" |
| 539 | "vld2.8 {d0[5], d1[5]}, [%0], %1 \n" |
| 540 | "vld2.8 {d0[6], d1[6]}, [%0], %1 \n" |
| 541 | "vld2.8 {d0[7], d1[7]}, [%0] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 542 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 543 | "vst1.64 {d0}, [%2] \n" |
| 544 | "vst1.64 {d1}, [%4] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 545 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 546 | "4: \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 547 | |
| 548 | : "+r"(src), // %0 |
| 549 | "+r"(src_stride), // %1 |
| 550 | "+r"(dst_a), // %2 |
| 551 | "+r"(dst_stride_a), // %3 |
| 552 | "+r"(dst_b), // %4 |
| 553 | "+r"(dst_stride_b), // %5 |
| 554 | "+r"(width) // %6 |
| 555 | : "r"(vtbl_4x4_transpose_di)// %7 |
| 556 | : "memory", "cc", "r9", |
| 557 | "q0", "q1", "q2", "q3", "q8", "q9", "q10", "q11" |
| 558 | ); |
| 559 | } |
| 560 | #endif |
fbarchard@google.com | fe5ff7e | 2011-12-10 07:45:58 +0000 | [diff] [blame^] | 561 | |
| 562 | #ifdef __cplusplus |
| 563 | } // extern "C" |
| 564 | } // namespace libyuv |
| 565 | #endif |