convolve2_avg_dspr2.c revision 7ce0a1d1337c01056ba24006efab21f00e179e04
1/* 2 * Copyright (c) 2013 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 <assert.h> 12#include <stdio.h> 13 14#include "./vpx_dsp_rtcd.h" 15#include "vpx_dsp/mips/convolve_common_dspr2.h" 16#include "vpx_dsp/vpx_convolve.h" 17#include "vpx_dsp/vpx_dsp_common.h" 18#include "vpx_ports/mem.h" 19 20#if HAVE_DSPR2 21static void convolve_bi_avg_vert_4_dspr2(const uint8_t *src, 22 int32_t src_stride, 23 uint8_t *dst, 24 int32_t dst_stride, 25 const int16_t *filter_y, 26 int32_t w, 27 int32_t h) { 28 int32_t x, y; 29 const uint8_t *src_ptr; 30 uint8_t *dst_ptr; 31 uint8_t *cm = vpx_ff_cropTbl; 32 uint32_t vector4a = 64; 33 uint32_t load1, load2; 34 uint32_t p1, p2; 35 uint32_t scratch1, scratch2; 36 uint32_t store1, store2; 37 int32_t Temp1, Temp2; 38 const int16_t *filter = &filter_y[3]; 39 uint32_t filter45; 40 41 filter45 = ((const int32_t *)filter)[0]; 42 43 for (y = h; y--;) { 44 /* prefetch data to cache memory */ 45 prefetch_store(dst + dst_stride); 46 47 for (x = 0; x < w; x += 4) { 48 src_ptr = src + x; 49 dst_ptr = dst + x; 50 51 __asm__ __volatile__ ( 52 "ulw %[load1], 0(%[src_ptr]) \n\t" 53 "add %[src_ptr], %[src_ptr], %[src_stride] \n\t" 54 "ulw %[load2], 0(%[src_ptr]) \n\t" 55 56 "mtlo %[vector4a], $ac0 \n\t" 57 "mtlo %[vector4a], $ac1 \n\t" 58 "mtlo %[vector4a], $ac2 \n\t" 59 "mtlo %[vector4a], $ac3 \n\t" 60 "mthi $zero, $ac0 \n\t" 61 "mthi $zero, $ac1 \n\t" 62 "mthi $zero, $ac2 \n\t" 63 "mthi $zero, $ac3 \n\t" 64 65 "preceu.ph.qbr %[scratch1], %[load1] \n\t" 66 "preceu.ph.qbr %[p1], %[load2] \n\t" 67 "precrq.ph.w %[p2], %[p1], %[scratch1] \n\t" /* pixel 2 */ 68 "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */ 69 70 "dpa.w.ph $ac0, %[p1], %[filter45] \n\t" 71 "dpa.w.ph $ac1, %[p2], %[filter45] \n\t" 72 73 "preceu.ph.qbl %[scratch1], %[load1] \n\t" 74 "preceu.ph.qbl %[p1], %[load2] \n\t" 75 "precrq.ph.w %[p2], %[p1], %[scratch1] \n\t" /* pixel 2 */ 76 "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */ 77 78 "dpa.w.ph $ac2, %[p1], %[filter45] \n\t" 79 "dpa.w.ph $ac3, %[p2], %[filter45] \n\t" 80 81 "extp %[Temp1], $ac0, 31 \n\t" 82 "extp %[Temp2], $ac1, 31 \n\t" 83 84 "lbu %[scratch1], 0(%[dst_ptr]) \n\t" 85 "lbu %[scratch2], 1(%[dst_ptr]) \n\t" 86 87 "lbux %[store1], %[Temp1](%[cm]) \n\t" 88 "addqh_r.w %[store1], %[store1], %[scratch1] \n\t" /* pixel 1 */ 89 "extp %[Temp1], $ac2, 31 \n\t" 90 91 "lbux %[store2], %[Temp2](%[cm]) \n\t" 92 "addqh_r.w %[store2], %[store2], %[scratch2] \n\t" /* pixel 2 */ 93 "extp %[Temp2], $ac3, 31 \n\t" 94 "lbu %[scratch1], 2(%[dst_ptr]) \n\t" 95 96 "sb %[store1], 0(%[dst_ptr]) \n\t" 97 "sb %[store2], 1(%[dst_ptr]) \n\t" 98 "lbu %[scratch2], 3(%[dst_ptr]) \n\t" 99 100 "lbux %[store1], %[Temp1](%[cm]) \n\t" 101 "lbux %[store2], %[Temp2](%[cm]) \n\t" 102 "addqh_r.w %[store1], %[store1], %[scratch1] \n\t" /* pixel 3 */ 103 "addqh_r.w %[store2], %[store2], %[scratch2] \n\t" /* pixel 4 */ 104 105 "sb %[store1], 2(%[dst_ptr]) \n\t" 106 "sb %[store2], 3(%[dst_ptr]) \n\t" 107 108 : [load1] "=&r" (load1), [load2] "=&r" (load2), 109 [p1] "=&r" (p1), [p2] "=&r" (p2), 110 [scratch1] "=&r" (scratch1), [scratch2] "=&r" (scratch2), 111 [Temp1] "=&r" (Temp1), [Temp2] "=&r" (Temp2), 112 [store1] "=&r" (store1), [store2] "=&r" (store2), 113 [src_ptr] "+r" (src_ptr) 114 : [filter45] "r" (filter45), [vector4a] "r" (vector4a), 115 [src_stride] "r" (src_stride), [cm] "r" (cm), 116 [dst_ptr] "r" (dst_ptr) 117 ); 118 } 119 120 /* Next row... */ 121 src += src_stride; 122 dst += dst_stride; 123 } 124} 125 126static void convolve_bi_avg_vert_64_dspr2(const uint8_t *src, 127 int32_t src_stride, 128 uint8_t *dst, 129 int32_t dst_stride, 130 const int16_t *filter_y, 131 int32_t h) { 132 int32_t x, y; 133 const uint8_t *src_ptr; 134 uint8_t *dst_ptr; 135 uint8_t *cm = vpx_ff_cropTbl; 136 uint32_t vector4a = 64; 137 uint32_t load1, load2; 138 uint32_t p1, p2; 139 uint32_t scratch1, scratch2; 140 uint32_t store1, store2; 141 int32_t Temp1, Temp2; 142 const int16_t *filter = &filter_y[3]; 143 uint32_t filter45;; 144 145 filter45 = ((const int32_t *)filter)[0]; 146 147 for (y = h; y--;) { 148 /* prefetch data to cache memory */ 149 prefetch_store(dst + dst_stride); 150 prefetch_store(dst + dst_stride + 32); 151 152 for (x = 0; x < 64; x += 4) { 153 src_ptr = src + x; 154 dst_ptr = dst + x; 155 156 __asm__ __volatile__ ( 157 "ulw %[load1], 0(%[src_ptr]) \n\t" 158 "add %[src_ptr], %[src_ptr], %[src_stride] \n\t" 159 "ulw %[load2], 0(%[src_ptr]) \n\t" 160 161 "mtlo %[vector4a], $ac0 \n\t" 162 "mtlo %[vector4a], $ac1 \n\t" 163 "mtlo %[vector4a], $ac2 \n\t" 164 "mtlo %[vector4a], $ac3 \n\t" 165 "mthi $zero, $ac0 \n\t" 166 "mthi $zero, $ac1 \n\t" 167 "mthi $zero, $ac2 \n\t" 168 "mthi $zero, $ac3 \n\t" 169 170 "preceu.ph.qbr %[scratch1], %[load1] \n\t" 171 "preceu.ph.qbr %[p1], %[load2] \n\t" 172 "precrq.ph.w %[p2], %[p1], %[scratch1] \n\t" /* pixel 2 */ 173 "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */ 174 175 "dpa.w.ph $ac0, %[p1], %[filter45] \n\t" 176 "dpa.w.ph $ac1, %[p2], %[filter45] \n\t" 177 178 "preceu.ph.qbl %[scratch1], %[load1] \n\t" 179 "preceu.ph.qbl %[p1], %[load2] \n\t" 180 "precrq.ph.w %[p2], %[p1], %[scratch1] \n\t" /* pixel 2 */ 181 "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */ 182 183 "dpa.w.ph $ac2, %[p1], %[filter45] \n\t" 184 "dpa.w.ph $ac3, %[p2], %[filter45] \n\t" 185 186 "extp %[Temp1], $ac0, 31 \n\t" 187 "extp %[Temp2], $ac1, 31 \n\t" 188 189 "lbu %[scratch1], 0(%[dst_ptr]) \n\t" 190 "lbu %[scratch2], 1(%[dst_ptr]) \n\t" 191 192 "lbux %[store1], %[Temp1](%[cm]) \n\t" 193 "addqh_r.w %[store1], %[store1], %[scratch1] \n\t" /* pixel 1 */ 194 "extp %[Temp1], $ac2, 31 \n\t" 195 196 "lbux %[store2], %[Temp2](%[cm]) \n\t" 197 "addqh_r.w %[store2], %[store2], %[scratch2] \n\t" /* pixel 2 */ 198 "extp %[Temp2], $ac3, 31 \n\t" 199 "lbu %[scratch1], 2(%[dst_ptr]) \n\t" 200 201 "sb %[store1], 0(%[dst_ptr]) \n\t" 202 "sb %[store2], 1(%[dst_ptr]) \n\t" 203 "lbu %[scratch2], 3(%[dst_ptr]) \n\t" 204 205 "lbux %[store1], %[Temp1](%[cm]) \n\t" 206 "lbux %[store2], %[Temp2](%[cm]) \n\t" 207 "addqh_r.w %[store1], %[store1], %[scratch1] \n\t" /* pixel 3 */ 208 "addqh_r.w %[store2], %[store2], %[scratch2] \n\t" /* pixel 4 */ 209 210 "sb %[store1], 2(%[dst_ptr]) \n\t" 211 "sb %[store2], 3(%[dst_ptr]) \n\t" 212 213 : [load1] "=&r" (load1), [load2] "=&r" (load2), 214 [p1] "=&r" (p1), [p2] "=&r" (p2), 215 [scratch1] "=&r" (scratch1), [scratch2] "=&r" (scratch2), 216 [Temp1] "=&r" (Temp1), [Temp2] "=&r" (Temp2), 217 [store1] "=&r" (store1), [store2] "=&r" (store2), 218 [src_ptr] "+r" (src_ptr) 219 : [filter45] "r" (filter45), [vector4a] "r" (vector4a), 220 [src_stride] "r" (src_stride), [cm] "r" (cm), 221 [dst_ptr] "r" (dst_ptr) 222 ); 223 } 224 225 /* Next row... */ 226 src += src_stride; 227 dst += dst_stride; 228 } 229} 230 231void vpx_convolve2_avg_vert_dspr2(const uint8_t *src, ptrdiff_t src_stride, 232 uint8_t *dst, ptrdiff_t dst_stride, 233 const int16_t *filter_x, int x_step_q4, 234 const int16_t *filter_y, int y_step_q4, 235 int w, int h) { 236 uint32_t pos = 38; 237 238 assert(y_step_q4 == 16); 239 240 /* bit positon for extract from acc */ 241 __asm__ __volatile__ ( 242 "wrdsp %[pos], 1 \n\t" 243 : 244 : [pos] "r" (pos) 245 ); 246 247 prefetch_store(dst); 248 249 switch (w) { 250 case 4: 251 case 8: 252 case 16: 253 case 32: 254 convolve_bi_avg_vert_4_dspr2(src, src_stride, 255 dst, dst_stride, 256 filter_y, w, h); 257 break; 258 case 64: 259 prefetch_store(dst + 32); 260 convolve_bi_avg_vert_64_dspr2(src, src_stride, 261 dst, dst_stride, 262 filter_y, h); 263 break; 264 default: 265 vpx_convolve8_avg_vert_c(src, src_stride, 266 dst, dst_stride, 267 filter_x, x_step_q4, 268 filter_y, y_step_q4, 269 w, h); 270 break; 271 } 272} 273#endif 274