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| 1 ; | |
| 2 ; Copyright (c) 2010 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 | |
| 12 EXPORT |vp8_yv12_copy_src_frame_func_neon| | |
| 13 ARM | |
| 14 REQUIRE8 | |
| 15 PRESERVE8 | |
| 16 | |
| 17 INCLUDE vpx_scale_asm_offsets.asm | |
| 18 | |
| 19 AREA ||.text||, CODE, READONLY, ALIGN=2 | |
| 20 ;Note: This function is used to copy source data in src_buffer[i] at beginning | |
| 21 ;of the encoding. The buffer has a width and height of cpi->oxcf.Width and | |
| 22 ;cpi->oxcf.Height, which can be ANY numbers(NOT always multiples of 16 or 4). | |
| 23 | |
| 24 ;void vp8_yv12_copy_src_frame_func_neon(const YV12_BUFFER_CONFIG *src_ybc, | |
| 25 ; YV12_BUFFER_CONFIG *dst_ybc); | |
| 26 | |
| 27 |vp8_yv12_copy_src_frame_func_neon| PROC | |
| 28 push {r4 - r11, lr} | |
| 29 vpush {d8 - d15} | |
| 30 | |
| 31 ;Copy Y plane | |
| 32 ldr r4, [r0, #yv12_buffer_config_y_height] | |
| 33 ldr r5, [r0, #yv12_buffer_config_y_width] | |
| 34 ldr r6, [r0, #yv12_buffer_config_y_stride] | |
| 35 ldr r7, [r1, #yv12_buffer_config_y_stride] | |
| 36 ldr r2, [r0, #yv12_buffer_config_y_buffer] ;srcptr1 | |
| 37 ldr r3, [r1, #yv12_buffer_config_y_buffer] ;dstptr1 | |
| 38 | |
| 39 add r10, r2, r6 ;second row src | |
| 40 add r11, r3, r7 ;second row dst | |
| 41 mov r6, r6, lsl #1 | |
| 42 mov r7, r7, lsl #1 | |
| 43 sub r6, r6, r5 ;adjust stride | |
| 44 sub r7, r7, r5 | |
| 45 | |
| 46 ; copy two rows at one time | |
| 47 mov lr, r4, lsr #1 | |
| 48 | |
| 49 cp_src_to_dst_height_loop | |
| 50 mov r12, r5 | |
| 51 | |
| 52 cp_width_128_loop | |
| 53 vld1.8 {q0, q1}, [r2]! | |
| 54 vld1.8 {q4, q5}, [r10]! | |
| 55 vld1.8 {q2, q3}, [r2]! | |
| 56 vld1.8 {q6, q7}, [r10]! | |
| 57 vld1.8 {q8, q9}, [r2]! | |
| 58 vld1.8 {q12, q13}, [r10]! | |
| 59 vld1.8 {q10, q11}, [r2]! | |
| 60 vld1.8 {q14, q15}, [r10]! | |
| 61 sub r12, r12, #128 | |
| 62 cmp r12, #128 | |
| 63 vst1.8 {q0, q1}, [r3]! | |
| 64 vst1.8 {q4, q5}, [r11]! | |
| 65 vst1.8 {q2, q3}, [r3]! | |
| 66 vst1.8 {q6, q7}, [r11]! | |
| 67 vst1.8 {q8, q9}, [r3]! | |
| 68 vst1.8 {q12, q13}, [r11]! | |
| 69 vst1.8 {q10, q11}, [r3]! | |
| 70 vst1.8 {q14, q15}, [r11]! | |
| 71 bhs cp_width_128_loop | |
| 72 | |
| 73 cmp r12, #0 | |
| 74 beq cp_width_done | |
| 75 | |
| 76 cp_width_8_loop | |
| 77 vld1.8 {d0}, [r2]! | |
| 78 vld1.8 {d1}, [r10]! | |
| 79 sub r12, r12, #8 | |
| 80 cmp r12, #8 | |
| 81 vst1.8 {d0}, [r3]! | |
| 82 vst1.8 {d1}, [r11]! | |
| 83 bhs cp_width_8_loop | |
| 84 | |
| 85 cmp r12, #0 | |
| 86 beq cp_width_done | |
| 87 | |
| 88 cp_width_1_loop | |
| 89 ldrb r8, [r2], #1 | |
| 90 subs r12, r12, #1 | |
| 91 strb r8, [r3], #1 | |
| 92 ldrb r8, [r10], #1 | |
| 93 strb r8, [r11], #1 | |
| 94 bne cp_width_1_loop | |
| 95 | |
| 96 cp_width_done | |
| 97 subs lr, lr, #1 | |
| 98 add r2, r2, r6 | |
| 99 add r3, r3, r7 | |
| 100 add r10, r10, r6 | |
| 101 add r11, r11, r7 | |
| 102 bne cp_src_to_dst_height_loop | |
| 103 | |
| 104 ;copy last line for Y if y_height is odd | |
| 105 tst r4, #1 | |
| 106 beq cp_width_done_1 | |
| 107 mov r12, r5 | |
| 108 | |
| 109 cp_width_128_loop_1 | |
| 110 vld1.8 {q0, q1}, [r2]! | |
| 111 vld1.8 {q2, q3}, [r2]! | |
| 112 vld1.8 {q8, q9}, [r2]! | |
| 113 vld1.8 {q10, q11}, [r2]! | |
| 114 sub r12, r12, #128 | |
| 115 cmp r12, #128 | |
| 116 vst1.8 {q0, q1}, [r3]! | |
| 117 vst1.8 {q2, q3}, [r3]! | |
| 118 vst1.8 {q8, q9}, [r3]! | |
| 119 vst1.8 {q10, q11}, [r3]! | |
| 120 bhs cp_width_128_loop_1 | |
| 121 | |
| 122 cmp r12, #0 | |
| 123 beq cp_width_done_1 | |
| 124 | |
| 125 cp_width_8_loop_1 | |
| 126 vld1.8 {d0}, [r2]! | |
| 127 sub r12, r12, #8 | |
| 128 cmp r12, #8 | |
| 129 vst1.8 {d0}, [r3]! | |
| 130 bhs cp_width_8_loop_1 | |
| 131 | |
| 132 cmp r12, #0 | |
| 133 beq cp_width_done_1 | |
| 134 | |
| 135 cp_width_1_loop_1 | |
| 136 ldrb r8, [r2], #1 | |
| 137 subs r12, r12, #1 | |
| 138 strb r8, [r3], #1 | |
| 139 bne cp_width_1_loop_1 | |
| 140 cp_width_done_1 | |
| 141 | |
| 142 ;Copy U & V planes | |
| 143 ldr r4, [r0, #yv12_buffer_config_uv_height] | |
| 144 ldr r5, [r0, #yv12_buffer_config_uv_width] | |
| 145 ldr r6, [r0, #yv12_buffer_config_uv_stride] | |
| 146 ldr r7, [r1, #yv12_buffer_config_uv_stride] | |
| 147 ldr r2, [r0, #yv12_buffer_config_u_buffer] ;srcptr1 | |
| 148 ldr r3, [r1, #yv12_buffer_config_u_buffer] ;dstptr1 | |
| 149 | |
| 150 add r10, r2, r6 ;second row src | |
| 151 add r11, r3, r7 ;second row dst | |
| 152 mov r6, r6, lsl #1 | |
| 153 mov r7, r7, lsl #1 | |
| 154 sub r6, r6, r5 ;adjust stride | |
| 155 sub r7, r7, r5 | |
| 156 | |
| 157 mov r9, #2 | |
| 158 | |
| 159 cp_uv_loop | |
| 160 ;copy two rows at one time | |
| 161 mov lr, r4, lsr #1 | |
| 162 | |
| 163 cp_src_to_dst_height_uv_loop | |
| 164 mov r12, r5 | |
| 165 | |
| 166 cp_width_uv_64_loop | |
| 167 vld1.8 {q0, q1}, [r2]! | |
| 168 vld1.8 {q4, q5}, [r10]! | |
| 169 vld1.8 {q2, q3}, [r2]! | |
| 170 vld1.8 {q6, q7}, [r10]! | |
| 171 sub r12, r12, #64 | |
| 172 cmp r12, #64 | |
| 173 vst1.8 {q0, q1}, [r3]! | |
| 174 vst1.8 {q4, q5}, [r11]! | |
| 175 vst1.8 {q2, q3}, [r3]! | |
| 176 vst1.8 {q6, q7}, [r11]! | |
| 177 bhs cp_width_uv_64_loop | |
| 178 | |
| 179 cmp r12, #0 | |
| 180 beq cp_width_uv_done | |
| 181 | |
| 182 cp_width_uv_8_loop | |
| 183 vld1.8 {d0}, [r2]! | |
| 184 vld1.8 {d1}, [r10]! | |
| 185 sub r12, r12, #8 | |
| 186 cmp r12, #8 | |
| 187 vst1.8 {d0}, [r3]! | |
| 188 vst1.8 {d1}, [r11]! | |
| 189 bhs cp_width_uv_8_loop | |
| 190 | |
| 191 cmp r12, #0 | |
| 192 beq cp_width_uv_done | |
| 193 | |
| 194 cp_width_uv_1_loop | |
| 195 ldrb r8, [r2], #1 | |
| 196 subs r12, r12, #1 | |
| 197 strb r8, [r3], #1 | |
| 198 ldrb r8, [r10], #1 | |
| 199 strb r8, [r11], #1 | |
| 200 bne cp_width_uv_1_loop | |
| 201 | |
| 202 cp_width_uv_done | |
| 203 subs lr, lr, #1 | |
| 204 add r2, r2, r6 | |
| 205 add r3, r3, r7 | |
| 206 add r10, r10, r6 | |
| 207 add r11, r11, r7 | |
| 208 bne cp_src_to_dst_height_uv_loop | |
| 209 | |
| 210 ;copy last line for U & V if uv_height is odd | |
| 211 tst r4, #1 | |
| 212 beq cp_width_uv_done_1 | |
| 213 mov r12, r5 | |
| 214 | |
| 215 cp_width_uv_64_loop_1 | |
| 216 vld1.8 {q0, q1}, [r2]! | |
| 217 vld1.8 {q2, q3}, [r2]! | |
| 218 sub r12, r12, #64 | |
| 219 cmp r12, #64 | |
| 220 vst1.8 {q0, q1}, [r3]! | |
| 221 vst1.8 {q2, q3}, [r3]! | |
| 222 bhs cp_width_uv_64_loop_1 | |
| 223 | |
| 224 cmp r12, #0 | |
| 225 beq cp_width_uv_done_1 | |
| 226 | |
| 227 cp_width_uv_8_loop_1 | |
| 228 vld1.8 {d0}, [r2]! | |
| 229 sub r12, r12, #8 | |
| 230 cmp r12, #8 | |
| 231 vst1.8 {d0}, [r3]! | |
| 232 bhs cp_width_uv_8_loop_1 | |
| 233 | |
| 234 cmp r12, #0 | |
| 235 beq cp_width_uv_done_1 | |
| 236 | |
| 237 cp_width_uv_1_loop_1 | |
| 238 ldrb r8, [r2], #1 | |
| 239 subs r12, r12, #1 | |
| 240 strb r8, [r3], #1 | |
| 241 bne cp_width_uv_1_loop_1 | |
| 242 cp_width_uv_done_1 | |
| 243 | |
| 244 subs r9, r9, #1 | |
| 245 ldrne r2, [r0, #yv12_buffer_config_v_buffer] ;srcptr1 | |
| 246 ldrne r3, [r1, #yv12_buffer_config_v_buffer] ;dstptr1 | |
| 247 ldrne r10, [r0, #yv12_buffer_config_uv_stride] | |
| 248 ldrne r11, [r1, #yv12_buffer_config_uv_stride] | |
| 249 | |
| 250 addne r10, r2, r10 ;second row src | |
| 251 addne r11, r3, r11 ;second row dst | |
| 252 | |
| 253 bne cp_uv_loop | |
| 254 | |
| 255 vpop {d8 - d15} | |
| 256 pop {r4 - r11, pc} | |
| 257 | |
| 258 ENDP | |
| 259 END | |
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Chromium Code Reviews
Issue 478033002:
libvpx: Pull from upstream (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/