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 | |
fbarchard@google.com | 15c3d45 | 2011-11-17 22:13:17 +0000 | [diff] [blame] | 11 | #include "row.h" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 12 | |
fbarchard@google.com | 17f198c | 2012-01-04 02:21:05 +0000 | [diff] [blame^] | 13 | #include "libyuv/basic_types.h" |
| 14 | |
fbarchard@google.com | fe5ff7e | 2011-12-10 07:45:58 +0000 | [diff] [blame] | 15 | #ifdef __cplusplus |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 16 | namespace libyuv { |
fbarchard@google.com | fe5ff7e | 2011-12-10 07:45:58 +0000 | [diff] [blame] | 17 | extern "C" { |
| 18 | #endif |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 19 | |
fbarchard@google.com | 15c3d45 | 2011-11-17 22:13:17 +0000 | [diff] [blame] | 20 | #if defined(__ARM_NEON__) && !defined(YUV_DISABLE_ASM) |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 21 | |
fbarchard@google.com | 2430e04 | 2011-11-11 21:57:06 +0000 | [diff] [blame] | 22 | void ReverseRow_NEON(const uint8* src, uint8* dst, int width) { |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 23 | asm volatile ( |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 24 | // compute where to start writing destination |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 25 | "add %1, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 26 | |
| 27 | // work on segments that are multiples of 16 |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 28 | "lsrs r3, %2, #4 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 29 | |
| 30 | // the output is written in two block. 8 bytes followed |
| 31 | // by another 8. reading is done sequentially, from left to |
| 32 | // right. writing is done from right to left in block sizes |
| 33 | // %1, the destination pointer is incremented after writing |
| 34 | // the first of the two blocks. need to subtract that 8 off |
| 35 | // along with 16 to get the next location. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 36 | "mov r3, #-24 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 37 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 38 | "beq 2f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 39 | |
| 40 | // back of destination by the size of the register that is |
| 41 | // going to be reversed |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 42 | "sub %1, #16 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 43 | |
| 44 | // the loop needs to run on blocks of 16. what will be left |
| 45 | // over is either a negative number, the residuals that need |
| 46 | // to be done, or 0. if this isn't subtracted off here the |
| 47 | // loop will run one extra time. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 48 | "sub %2, #16 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 49 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 50 | "1: \n" |
| 51 | "vld1.8 {q0}, [%0]! \n" // src += 16 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 52 | |
| 53 | // reverse the bytes in the 64 bit segments. unable to reverse |
| 54 | // the bytes in the entire 128 bits in one go. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 55 | "vrev64.8 q0, q0 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 56 | |
| 57 | // because of the inability to reverse the entire 128 bits |
| 58 | // reverse the writing out of the two 64 bit segments. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 59 | "vst1.8 {d1}, [%1]! \n" |
| 60 | "vst1.8 {d0}, [%1], r3 \n" // dst -= 16 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 61 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 62 | "subs %2, #16 \n" |
| 63 | "bge 1b \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 64 | |
| 65 | // add 16 back to the counter. if the result is 0 there is no |
| 66 | // residuals so jump past |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 67 | "adds %2, #16 \n" |
| 68 | "beq 5f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 69 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 70 | "add %1, #16 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 71 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 72 | "2: \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 73 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 74 | "mov r3, #-3 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 75 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 76 | "sub %1, #2 \n" |
| 77 | "subs %2, #2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 78 | // check for 16*n+1 scenarios where segments_of_2 should not |
| 79 | // be run, but there is something left over. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 80 | "blt 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 81 | |
| 82 | // do this in neon registers as per |
| 83 | // 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] | 84 | "3: \n" |
| 85 | "vld2.8 {d0[0], d1[0]}, [%0]! \n" // src += 2 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 86 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 87 | "vst1.8 {d1[0]}, [%1]! \n" |
| 88 | "vst1.8 {d0[0]}, [%1], r3 \n" // dst -= 2 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 89 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 90 | "subs %2, #2 \n" |
| 91 | "bge 3b \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 92 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 93 | "adds %2, #2 \n" |
| 94 | "beq 5f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 95 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 96 | "4: \n" |
| 97 | "add %1, #1 \n" |
| 98 | "vld1.8 {d0[0]}, [%0] \n" |
| 99 | "vst1.8 {d0[0]}, [%1] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 100 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 101 | "5: \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 102 | : "+r"(src), // %0 |
| 103 | "+r"(dst), // %1 |
| 104 | "+r"(width) // %2 |
| 105 | : |
| 106 | : "memory", "cc", "r3", "q0" |
| 107 | ); |
| 108 | } |
| 109 | |
| 110 | static const uint8 vtbl_4x4_transpose[16] __attribute__((vector_size(16))) = |
| 111 | { 0, 4, 8, 12, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15 }; |
| 112 | |
| 113 | void TransposeWx8_NEON(const uint8* src, int src_stride, |
| 114 | uint8* dst, int dst_stride, |
| 115 | int width) { |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 116 | asm volatile ( |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 117 | // loops are on blocks of 8. loop will stop when |
| 118 | // counter gets to or below 0. starting the counter |
| 119 | // at w-8 allow for this |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 120 | "sub %4, #8 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 121 | |
| 122 | // handle 8x8 blocks. this should be the majority of the plane |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 123 | "1: \n" |
| 124 | "mov r9, %0 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 125 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 126 | "vld1.8 {d0}, [r9], %1 \n" |
| 127 | "vld1.8 {d1}, [r9], %1 \n" |
| 128 | "vld1.8 {d2}, [r9], %1 \n" |
| 129 | "vld1.8 {d3}, [r9], %1 \n" |
| 130 | "vld1.8 {d4}, [r9], %1 \n" |
| 131 | "vld1.8 {d5}, [r9], %1 \n" |
| 132 | "vld1.8 {d6}, [r9], %1 \n" |
| 133 | "vld1.8 {d7}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 134 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 135 | "vtrn.8 d1, d0 \n" |
| 136 | "vtrn.8 d3, d2 \n" |
| 137 | "vtrn.8 d5, d4 \n" |
| 138 | "vtrn.8 d7, d6 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 139 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 140 | "vtrn.16 d1, d3 \n" |
| 141 | "vtrn.16 d0, d2 \n" |
| 142 | "vtrn.16 d5, d7 \n" |
| 143 | "vtrn.16 d4, d6 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 144 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 145 | "vtrn.32 d1, d5 \n" |
| 146 | "vtrn.32 d0, d4 \n" |
| 147 | "vtrn.32 d3, d7 \n" |
| 148 | "vtrn.32 d2, d6 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 149 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 150 | "vrev16.8 q0, q0 \n" |
| 151 | "vrev16.8 q1, q1 \n" |
| 152 | "vrev16.8 q2, q2 \n" |
| 153 | "vrev16.8 q3, q3 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 154 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 155 | "mov r9, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 156 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 157 | "vst1.8 {d1}, [r9], %3 \n" |
| 158 | "vst1.8 {d0}, [r9], %3 \n" |
| 159 | "vst1.8 {d3}, [r9], %3 \n" |
| 160 | "vst1.8 {d2}, [r9], %3 \n" |
| 161 | "vst1.8 {d5}, [r9], %3 \n" |
| 162 | "vst1.8 {d4}, [r9], %3 \n" |
| 163 | "vst1.8 {d7}, [r9], %3 \n" |
| 164 | "vst1.8 {d6}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 165 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 166 | "add %0, #8 \n" // src += 8 |
| 167 | "add %2, %2, %3, lsl #3 \n" // dst += 8 * dst_stride |
| 168 | "subs %4, #8 \n" // w -= 8 |
| 169 | "bge 1b \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 170 | |
| 171 | // add 8 back to counter. if the result is 0 there are |
| 172 | // no residuals. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 173 | "adds %4, #8 \n" |
| 174 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 175 | |
| 176 | // some residual, so between 1 and 7 lines left to transpose |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 177 | "cmp %4, #2 \n" |
| 178 | "blt 3f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 179 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 180 | "cmp %4, #4 \n" |
| 181 | "blt 2f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 182 | |
| 183 | // 4x8 block |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 184 | "mov r9, %0 \n" |
| 185 | "vld1.32 {d0[0]}, [r9], %1 \n" |
| 186 | "vld1.32 {d0[1]}, [r9], %1 \n" |
| 187 | "vld1.32 {d1[0]}, [r9], %1 \n" |
| 188 | "vld1.32 {d1[1]}, [r9], %1 \n" |
| 189 | "vld1.32 {d2[0]}, [r9], %1 \n" |
| 190 | "vld1.32 {d2[1]}, [r9], %1 \n" |
| 191 | "vld1.32 {d3[0]}, [r9], %1 \n" |
| 192 | "vld1.32 {d3[1]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 193 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 194 | "mov r9, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 195 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 196 | "vld1.8 {q3}, [%5] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 197 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 198 | "vtbl.8 d4, {d0, d1}, d6 \n" |
| 199 | "vtbl.8 d5, {d0, d1}, d7 \n" |
| 200 | "vtbl.8 d0, {d2, d3}, d6 \n" |
| 201 | "vtbl.8 d1, {d2, d3}, d7 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 202 | |
| 203 | // TODO: rework shuffle above to write |
| 204 | // out with 4 instead of 8 writes |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 205 | "vst1.32 {d4[0]}, [r9], %3 \n" |
| 206 | "vst1.32 {d4[1]}, [r9], %3 \n" |
| 207 | "vst1.32 {d5[0]}, [r9], %3 \n" |
| 208 | "vst1.32 {d5[1]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 209 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 210 | "add r9, %2, #4 \n" |
| 211 | "vst1.32 {d0[0]}, [r9], %3 \n" |
| 212 | "vst1.32 {d0[1]}, [r9], %3 \n" |
| 213 | "vst1.32 {d1[0]}, [r9], %3 \n" |
| 214 | "vst1.32 {d1[1]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 215 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 216 | "add %0, #4 \n" // src += 4 |
| 217 | "add %2, %2, %3, lsl #2 \n" // dst += 4 * dst_stride |
| 218 | "subs %4, #4 \n" // w -= 4 |
| 219 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 220 | |
| 221 | // some residual, check to see if it includes a 2x8 block, |
| 222 | // or less |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 223 | "cmp %4, #2 \n" |
| 224 | "blt 3f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 225 | |
| 226 | // 2x8 block |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 227 | "2: \n" |
| 228 | "mov r9, %0 \n" |
| 229 | "vld1.16 {d0[0]}, [r9], %1 \n" |
| 230 | "vld1.16 {d1[0]}, [r9], %1 \n" |
| 231 | "vld1.16 {d0[1]}, [r9], %1 \n" |
| 232 | "vld1.16 {d1[1]}, [r9], %1 \n" |
| 233 | "vld1.16 {d0[2]}, [r9], %1 \n" |
| 234 | "vld1.16 {d1[2]}, [r9], %1 \n" |
| 235 | "vld1.16 {d0[3]}, [r9], %1 \n" |
| 236 | "vld1.16 {d1[3]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 237 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 238 | "vtrn.8 d0, d1 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 239 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 240 | "mov r9, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 241 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 242 | "vst1.64 {d0}, [r9], %3 \n" |
| 243 | "vst1.64 {d1}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 244 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 245 | "add %0, #2 \n" // src += 2 |
| 246 | "add %2, %2, %3, lsl #1 \n" // dst += 2 * dst_stride |
| 247 | "subs %4, #2 \n" // w -= 2 |
| 248 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 249 | |
| 250 | // 1x8 block |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 251 | "3: \n" |
| 252 | "vld1.8 {d0[0]}, [%0], %1 \n" |
| 253 | "vld1.8 {d0[1]}, [%0], %1 \n" |
| 254 | "vld1.8 {d0[2]}, [%0], %1 \n" |
| 255 | "vld1.8 {d0[3]}, [%0], %1 \n" |
| 256 | "vld1.8 {d0[4]}, [%0], %1 \n" |
| 257 | "vld1.8 {d0[5]}, [%0], %1 \n" |
| 258 | "vld1.8 {d0[6]}, [%0], %1 \n" |
| 259 | "vld1.8 {d0[7]}, [%0] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 260 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 261 | "vst1.64 {d0}, [%2] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 262 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 263 | "4: \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 264 | |
| 265 | : "+r"(src), // %0 |
| 266 | "+r"(src_stride), // %1 |
| 267 | "+r"(dst), // %2 |
| 268 | "+r"(dst_stride), // %3 |
| 269 | "+r"(width) // %4 |
| 270 | : "r"(vtbl_4x4_transpose) // %5 |
| 271 | : "memory", "cc", "r9", "q0", "q1", "q2", "q3" |
| 272 | ); |
| 273 | } |
| 274 | |
fbarchard@google.com | 2430e04 | 2011-11-11 21:57:06 +0000 | [diff] [blame] | 275 | void ReverseRowUV_NEON(const uint8* src, |
| 276 | uint8* dst_a, uint8* dst_b, |
| 277 | int width) { |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 278 | asm volatile ( |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 279 | // compute where to start writing destination |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 280 | "add %1, %3 \n" // dst_a + width |
| 281 | "add %2, %3 \n" // dst_b + width |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 282 | |
| 283 | // work on input segments that are multiples of 16, but |
| 284 | // width that has been passed is output segments, half |
| 285 | // the size of input. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 286 | "lsrs r12, %3, #3 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 287 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 288 | "beq 2f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 289 | |
| 290 | // the output is written in to two blocks. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 291 | "mov r12, #-8 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 292 | |
| 293 | // back of destination by the size of the register that is |
| 294 | // going to be reversed |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 295 | "sub %1, #8 \n" |
| 296 | "sub %2, #8 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 297 | |
| 298 | // the loop needs to run on blocks of 8. what will be left |
| 299 | // over is either a negative number, the residuals that need |
| 300 | // to be done, or 0. if this isn't subtracted off here the |
| 301 | // loop will run one extra time. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 302 | "sub %3, #8 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 303 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 304 | "1: \n" |
| 305 | "vld2.8 {d0, d1}, [%0]! \n" // src += 16 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 306 | |
| 307 | // reverse the bytes in the 64 bit segments |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 308 | "vrev64.8 q0, q0 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 309 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 310 | "vst1.8 {d0}, [%1], r12 \n" // dst_a -= 8 |
| 311 | "vst1.8 {d1}, [%2], r12 \n" // dst_b -= 8 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 312 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 313 | "subs %3, #8 \n" |
| 314 | "bge 1b \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 315 | |
| 316 | // add 8 back to the counter. if the result is 0 there is no |
| 317 | // residuals so return |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 318 | "adds %3, #8 \n" |
| 319 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 320 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 321 | "add %1, #8 \n" |
| 322 | "add %2, #8 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 323 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 324 | "2: \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 325 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 326 | "mov r12, #-1 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 327 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 328 | "sub %1, #1 \n" |
| 329 | "sub %2, #1 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 330 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 331 | "3: \n" |
| 332 | "vld2.8 {d0[0], d1[0]}, [%0]! \n" // src += 2 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 333 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 334 | "vst1.8 {d0[0]}, [%1], r12 \n" // dst_a -= 1 |
| 335 | "vst1.8 {d1[0]}, [%2], r12 \n" // dst_b -= 1 |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 336 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 337 | "subs %3, %3, #1 \n" |
| 338 | "bgt 3b \n" |
| 339 | "4: \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 340 | : "+r"(src), // %0 |
| 341 | "+r"(dst_a), // %1 |
| 342 | "+r"(dst_b), // %2 |
| 343 | "+r"(width) // %3 |
| 344 | : |
| 345 | : "memory", "cc", "r12", "q0" |
| 346 | ); |
| 347 | } |
| 348 | |
| 349 | static const uint8 vtbl_4x4_transpose_di[16] __attribute__((vector_size(16))) = |
| 350 | { 0, 8, 1, 9, 2, 10, 3, 11, 4, 12, 5, 13, 6, 14, 7, 15 }; |
| 351 | |
| 352 | void TransposeUVWx8_NEON(const uint8* src, int src_stride, |
| 353 | uint8* dst_a, int dst_stride_a, |
| 354 | uint8* dst_b, int dst_stride_b, |
| 355 | int width) { |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 356 | asm volatile ( |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 357 | // loops are on blocks of 8. loop will stop when |
| 358 | // counter gets to or below 0. starting the counter |
| 359 | // at w-8 allow for this |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 360 | "sub %6, #8 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 361 | |
| 362 | // handle 8x8 blocks. this should be the majority of the plane |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 363 | "1: \n" |
| 364 | "mov r9, %0 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 365 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 366 | "vld2.8 {d0, d1}, [r9], %1 \n" |
| 367 | "vld2.8 {d2, d3}, [r9], %1 \n" |
| 368 | "vld2.8 {d4, d5}, [r9], %1 \n" |
| 369 | "vld2.8 {d6, d7}, [r9], %1 \n" |
| 370 | "vld2.8 {d16, d17}, [r9], %1 \n" |
| 371 | "vld2.8 {d18, d19}, [r9], %1 \n" |
| 372 | "vld2.8 {d20, d21}, [r9], %1 \n" |
| 373 | "vld2.8 {d22, d23}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 374 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 375 | "vtrn.8 q1, q0 \n" |
| 376 | "vtrn.8 q3, q2 \n" |
| 377 | "vtrn.8 q9, q8 \n" |
| 378 | "vtrn.8 q11, q10 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 379 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 380 | "vtrn.16 q1, q3 \n" |
| 381 | "vtrn.16 q0, q2 \n" |
| 382 | "vtrn.16 q9, q11 \n" |
| 383 | "vtrn.16 q8, q10 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 384 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 385 | "vtrn.32 q1, q9 \n" |
| 386 | "vtrn.32 q0, q8 \n" |
| 387 | "vtrn.32 q3, q11 \n" |
| 388 | "vtrn.32 q2, q10 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 389 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 390 | "vrev16.8 q0, q0 \n" |
| 391 | "vrev16.8 q1, q1 \n" |
| 392 | "vrev16.8 q2, q2 \n" |
| 393 | "vrev16.8 q3, q3 \n" |
| 394 | "vrev16.8 q8, q8 \n" |
| 395 | "vrev16.8 q9, q9 \n" |
| 396 | "vrev16.8 q10, q10 \n" |
| 397 | "vrev16.8 q11, q11 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 398 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 399 | "mov r9, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 400 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 401 | "vst1.8 {d2}, [r9], %3 \n" |
| 402 | "vst1.8 {d0}, [r9], %3 \n" |
| 403 | "vst1.8 {d6}, [r9], %3 \n" |
| 404 | "vst1.8 {d4}, [r9], %3 \n" |
| 405 | "vst1.8 {d18}, [r9], %3 \n" |
| 406 | "vst1.8 {d16}, [r9], %3 \n" |
| 407 | "vst1.8 {d22}, [r9], %3 \n" |
| 408 | "vst1.8 {d20}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 409 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 410 | "mov r9, %4 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 411 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 412 | "vst1.8 {d3}, [r9], %5 \n" |
| 413 | "vst1.8 {d1}, [r9], %5 \n" |
| 414 | "vst1.8 {d7}, [r9], %5 \n" |
| 415 | "vst1.8 {d5}, [r9], %5 \n" |
| 416 | "vst1.8 {d19}, [r9], %5 \n" |
| 417 | "vst1.8 {d17}, [r9], %5 \n" |
| 418 | "vst1.8 {d23}, [r9], %5 \n" |
| 419 | "vst1.8 {d21}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 420 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 421 | "add %0, #8*2 \n" // src += 8*2 |
| 422 | "add %2, %2, %3, lsl #3 \n" // dst_a += 8 * dst_stride_a |
| 423 | "add %4, %4, %5, lsl #3 \n" // dst_b += 8 * dst_stride_b |
| 424 | "subs %6, #8 \n" // w -= 8 |
| 425 | "bge 1b \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 426 | |
| 427 | // add 8 back to counter. if the result is 0 there are |
| 428 | // no residuals. |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 429 | "adds %6, #8 \n" |
| 430 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 431 | |
| 432 | // some residual, so between 1 and 7 lines left to transpose |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 433 | "cmp %6, #2 \n" |
| 434 | "blt 3f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 435 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 436 | "cmp %6, #4 \n" |
| 437 | "blt 2f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 438 | |
| 439 | //TODO(frkoenig) : clean this up |
| 440 | // 4x8 block |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 441 | "mov r9, %0 \n" |
| 442 | "vld1.64 {d0}, [r9], %1 \n" |
| 443 | "vld1.64 {d1}, [r9], %1 \n" |
| 444 | "vld1.64 {d2}, [r9], %1 \n" |
| 445 | "vld1.64 {d3}, [r9], %1 \n" |
| 446 | "vld1.64 {d4}, [r9], %1 \n" |
| 447 | "vld1.64 {d5}, [r9], %1 \n" |
| 448 | "vld1.64 {d6}, [r9], %1 \n" |
| 449 | "vld1.64 {d7}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 450 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 451 | "vld1.8 {q15}, [%7] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 452 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 453 | "vtrn.8 q0, q1 \n" |
| 454 | "vtrn.8 q2, q3 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 455 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 456 | "vtbl.8 d16, {d0, d1}, d30 \n" |
| 457 | "vtbl.8 d17, {d0, d1}, d31 \n" |
| 458 | "vtbl.8 d18, {d2, d3}, d30 \n" |
| 459 | "vtbl.8 d19, {d2, d3}, d31 \n" |
| 460 | "vtbl.8 d20, {d4, d5}, d30 \n" |
| 461 | "vtbl.8 d21, {d4, d5}, d31 \n" |
| 462 | "vtbl.8 d22, {d6, d7}, d30 \n" |
| 463 | "vtbl.8 d23, {d6, d7}, d31 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 464 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 465 | "mov r9, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 466 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 467 | "vst1.32 {d16[0]}, [r9], %3 \n" |
| 468 | "vst1.32 {d16[1]}, [r9], %3 \n" |
| 469 | "vst1.32 {d17[0]}, [r9], %3 \n" |
| 470 | "vst1.32 {d17[1]}, [r9], %3 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 471 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 472 | "add r9, %2, #4 \n" |
| 473 | "vst1.32 {d20[0]}, [r9], %3 \n" |
| 474 | "vst1.32 {d20[1]}, [r9], %3 \n" |
| 475 | "vst1.32 {d21[0]}, [r9], %3 \n" |
| 476 | "vst1.32 {d21[1]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 477 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 478 | "mov r9, %4 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 479 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 480 | "vst1.32 {d18[0]}, [r9], %5 \n" |
| 481 | "vst1.32 {d18[1]}, [r9], %5 \n" |
| 482 | "vst1.32 {d19[0]}, [r9], %5 \n" |
| 483 | "vst1.32 {d19[1]}, [r9], %5 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 484 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 485 | "add r9, %4, #4 \n" |
| 486 | "vst1.32 {d22[0]}, [r9], %5 \n" |
| 487 | "vst1.32 {d22[1]}, [r9], %5 \n" |
| 488 | "vst1.32 {d23[0]}, [r9], %5 \n" |
| 489 | "vst1.32 {d23[1]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 490 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 491 | "add %0, #4*2 \n" // src += 4 * 2 |
| 492 | "add %2, %2, %3, lsl #2 \n" // dst_a += 4 * dst_stride_a |
| 493 | "add %4, %4, %5, lsl #2 \n" // dst_b += 4 * dst_stride_b |
| 494 | "subs %6, #4 \n" // w -= 4 |
| 495 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 496 | |
| 497 | // some residual, check to see if it includes a 2x8 block, |
| 498 | // or less |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 499 | "cmp %6, #2 \n" |
| 500 | "blt 3f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 501 | |
| 502 | // 2x8 block |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 503 | "2: \n" |
| 504 | "mov r9, %0 \n" |
| 505 | "vld2.16 {d0[0], d2[0]}, [r9], %1 \n" |
| 506 | "vld2.16 {d1[0], d3[0]}, [r9], %1 \n" |
| 507 | "vld2.16 {d0[1], d2[1]}, [r9], %1 \n" |
| 508 | "vld2.16 {d1[1], d3[1]}, [r9], %1 \n" |
| 509 | "vld2.16 {d0[2], d2[2]}, [r9], %1 \n" |
| 510 | "vld2.16 {d1[2], d3[2]}, [r9], %1 \n" |
| 511 | "vld2.16 {d0[3], d2[3]}, [r9], %1 \n" |
| 512 | "vld2.16 {d1[3], d3[3]}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 513 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 514 | "vtrn.8 d0, d1 \n" |
| 515 | "vtrn.8 d2, d3 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 516 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 517 | "mov r9, %2 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 518 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 519 | "vst1.64 {d0}, [r9], %3 \n" |
| 520 | "vst1.64 {d2}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 521 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 522 | "mov r9, %4 \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 523 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 524 | "vst1.64 {d1}, [r9], %5 \n" |
| 525 | "vst1.64 {d3}, [r9] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 526 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 527 | "add %0, #2*2 \n" // src += 2 * 2 |
| 528 | "add %2, %2, %3, lsl #1 \n" // dst_a += 2 * dst_stride_a |
| 529 | "add %4, %4, %5, lsl #1 \n" // dst_b += 2 * dst_stride_b |
| 530 | "subs %6, #2 \n" // w -= 2 |
| 531 | "beq 4f \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 532 | |
| 533 | // 1x8 block |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 534 | "3: \n" |
| 535 | "vld2.8 {d0[0], d1[0]}, [%0], %1 \n" |
| 536 | "vld2.8 {d0[1], d1[1]}, [%0], %1 \n" |
| 537 | "vld2.8 {d0[2], d1[2]}, [%0], %1 \n" |
| 538 | "vld2.8 {d0[3], d1[3]}, [%0], %1 \n" |
| 539 | "vld2.8 {d0[4], d1[4]}, [%0], %1 \n" |
| 540 | "vld2.8 {d0[5], d1[5]}, [%0], %1 \n" |
| 541 | "vld2.8 {d0[6], d1[6]}, [%0], %1 \n" |
| 542 | "vld2.8 {d0[7], d1[7]}, [%0] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 543 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 544 | "vst1.64 {d0}, [%2] \n" |
| 545 | "vst1.64 {d1}, [%4] \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 546 | |
fbarchard@google.com | f7a5048 | 2011-11-10 22:41:20 +0000 | [diff] [blame] | 547 | "4: \n" |
frkoenig@google.com | f7e74a1 | 2011-11-03 22:41:59 +0000 | [diff] [blame] | 548 | |
| 549 | : "+r"(src), // %0 |
| 550 | "+r"(src_stride), // %1 |
| 551 | "+r"(dst_a), // %2 |
| 552 | "+r"(dst_stride_a), // %3 |
| 553 | "+r"(dst_b), // %4 |
| 554 | "+r"(dst_stride_b), // %5 |
| 555 | "+r"(width) // %6 |
| 556 | : "r"(vtbl_4x4_transpose_di)// %7 |
| 557 | : "memory", "cc", "r9", |
| 558 | "q0", "q1", "q2", "q3", "q8", "q9", "q10", "q11" |
| 559 | ); |
| 560 | } |
| 561 | #endif |
fbarchard@google.com | fe5ff7e | 2011-12-10 07:45:58 +0000 | [diff] [blame] | 562 | |
| 563 | #ifdef __cplusplus |
| 564 | } // extern "C" |
| 565 | } // namespace libyuv |
| 566 | #endif |