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4349 | Serge | 1 | ;****************************************************************************** |
2 | ;* x86-SIMD-optimized IDCT for prores |
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3 | ;* this is identical to "simple" IDCT written by Michael Niedermayer |
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4 | ;* except for the clip range |
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5 | ;* |
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6 | ;* Copyright (c) 2011 Ronald S. Bultje |
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7 | ;* |
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8 | ;* This file is part of FFmpeg. |
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9 | ;* |
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10 | ;* FFmpeg is free software; you can redistribute it and/or |
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11 | ;* modify it under the terms of the GNU Lesser General Public |
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12 | ;* License as published by the Free Software Foundation; either |
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13 | ;* version 2.1 of the License, or (at your option) any later version. |
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14 | ;* |
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15 | ;* FFmpeg is distributed in the hope that it will be useful, |
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16 | ;* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 | ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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18 | ;* Lesser General Public License for more details. |
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19 | ;* |
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20 | ;* You should have received a copy of the GNU Lesser General Public |
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21 | ;* License along with FFmpeg; if not, write to the Free Software |
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22 | ;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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23 | ;****************************************************************************** |
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24 | |||
25 | %include "libavutil/x86/x86util.asm" |
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26 | |||
27 | %define W1sh2 22725 ; W1 = 90901 = 22725<<2 + 1 |
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28 | %define W2sh2 21407 ; W2 = 85627 = 21407<<2 - 1 |
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29 | %define W3sh2 19265 ; W3 = 77062 = 19265<<2 + 2 |
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30 | %define W4sh2 16384 ; W4 = 65535 = 16384<<2 - 1 |
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31 | %define W5sh2 12873 ; W5 = 51491 = 12873<<2 - 1 |
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32 | %define W6sh2 8867 ; W6 = 35468 = 8867<<2 |
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33 | %define W7sh2 4520 ; W7 = 18081 = 4520<<2 + 1 |
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34 | |||
35 | %if ARCH_X86_64 |
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36 | |||
37 | SECTION_RODATA |
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38 | |||
39 | w4_plus_w2: times 4 dw W4sh2, +W2sh2 |
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40 | w4_min_w2: times 4 dw W4sh2, -W2sh2 |
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41 | w4_plus_w6: times 4 dw W4sh2, +W6sh2 |
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42 | w4_min_w6: times 4 dw W4sh2, -W6sh2 |
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43 | w1_plus_w3: times 4 dw W1sh2, +W3sh2 |
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44 | w3_min_w1: times 4 dw W3sh2, -W1sh2 |
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45 | w7_plus_w3: times 4 dw W7sh2, +W3sh2 |
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46 | w3_min_w7: times 4 dw W3sh2, -W7sh2 |
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47 | w1_plus_w5: times 4 dw W1sh2, +W5sh2 |
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48 | w5_min_w1: times 4 dw W5sh2, -W1sh2 |
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49 | w5_plus_w7: times 4 dw W5sh2, +W7sh2 |
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50 | w7_min_w5: times 4 dw W7sh2, -W5sh2 |
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51 | pw_88: times 8 dw 0x2008 |
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52 | |||
53 | cextern pw_1 |
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54 | cextern pw_4 |
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55 | cextern pw_512 |
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56 | cextern pw_1019 |
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57 | |||
58 | section .text align=16 |
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59 | |||
60 | ; interleave data while maintaining source |
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61 | ; %1=type, %2=dstlo, %3=dsthi, %4=src, %5=interleave |
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62 | %macro SBUTTERFLY3 5 |
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63 | punpckl%1 m%2, m%4, m%5 |
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64 | punpckh%1 m%3, m%4, m%5 |
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65 | %endmacro |
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66 | |||
67 | ; %1/%2=src1/dst1, %3/%4=dst2, %5/%6=src2, %7=shift |
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68 | ; action: %3/%4 = %1/%2 - %5/%6; %1/%2 += %5/%6 |
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69 | ; %1/%2/%3/%4 >>= %7; dword -> word (in %1/%3) |
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70 | %macro SUMSUB_SHPK 7 |
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71 | psubd %3, %1, %5 ; { a0 - b0 }[0-3] |
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72 | psubd %4, %2, %6 ; { a0 - b0 }[4-7] |
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73 | paddd %1, %5 ; { a0 + b0 }[0-3] |
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74 | paddd %2, %6 ; { a0 + b0 }[4-7] |
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75 | psrad %1, %7 |
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76 | psrad %2, %7 |
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77 | psrad %3, %7 |
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78 | psrad %4, %7 |
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79 | packssdw %1, %2 ; row[0] |
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80 | packssdw %3, %4 ; row[7] |
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81 | %endmacro |
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82 | |||
83 | ; %1 = row or col (for rounding variable) |
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84 | ; %2 = number of bits to shift at the end |
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85 | %macro IDCT_1D 2 |
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86 | ; a0 = (W4 * row[0]) + (1 << (15 - 1)); |
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87 | ; a1 = a0; |
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88 | ; a2 = a0; |
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89 | ; a3 = a0; |
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90 | ; a0 += W2 * row[2]; |
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91 | ; a1 += W6 * row[2]; |
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92 | ; a2 -= W6 * row[2]; |
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93 | ; a3 -= W2 * row[2]; |
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94 | %ifidn %1, col |
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95 | paddw m10,[pw_88] |
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96 | %endif |
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97 | %ifidn %1, row |
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98 | paddw m10,[pw_1] |
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99 | %endif |
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100 | SBUTTERFLY3 wd, 0, 1, 10, 8 ; { row[0], row[2] }[0-3]/[4-7] |
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101 | pmaddwd m2, m0, [w4_plus_w6] |
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102 | pmaddwd m3, m1, [w4_plus_w6] |
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103 | pmaddwd m4, m0, [w4_min_w6] |
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104 | pmaddwd m5, m1, [w4_min_w6] |
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105 | pmaddwd m6, m0, [w4_min_w2] |
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106 | pmaddwd m7, m1, [w4_min_w2] |
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107 | pmaddwd m0, [w4_plus_w2] |
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108 | pmaddwd m1, [w4_plus_w2] |
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109 | |||
110 | ; a0: -1*row[0]-1*row[2] |
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111 | ; a1: -1*row[0] |
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112 | ; a2: -1*row[0] |
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113 | ; a3: -1*row[0]+1*row[2] |
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114 | |||
115 | ; a0 += W4*row[4] + W6*row[6]; i.e. -1*row[4] |
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116 | ; a1 -= W4*row[4] + W2*row[6]; i.e. -1*row[4]-1*row[6] |
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117 | ; a2 -= W4*row[4] - W2*row[6]; i.e. -1*row[4]+1*row[6] |
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118 | ; a3 += W4*row[4] - W6*row[6]; i.e. -1*row[4] |
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119 | SBUTTERFLY3 wd, 8, 9, 13, 12 ; { row[4], row[6] }[0-3]/[4-7] |
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120 | pmaddwd m10, m8, [w4_plus_w6] |
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121 | pmaddwd m11, m9, [w4_plus_w6] |
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122 | paddd m0, m10 ; a0[0-3] |
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123 | paddd m1, m11 ; a0[4-7] |
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124 | pmaddwd m10, m8, [w4_min_w6] |
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125 | pmaddwd m11, m9, [w4_min_w6] |
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126 | paddd m6, m10 ; a3[0-3] |
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127 | paddd m7, m11 ; a3[4-7] |
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128 | pmaddwd m10, m8, [w4_min_w2] |
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129 | pmaddwd m11, m9, [w4_min_w2] |
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130 | pmaddwd m8, [w4_plus_w2] |
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131 | pmaddwd m9, [w4_plus_w2] |
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132 | psubd m4, m10 ; a2[0-3] intermediate |
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133 | psubd m5, m11 ; a2[4-7] intermediate |
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134 | psubd m2, m8 ; a1[0-3] intermediate |
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135 | psubd m3, m9 ; a1[4-7] intermediate |
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136 | |||
137 | ; load/store |
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138 | mova [r2+ 0], m0 |
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139 | mova [r2+ 32], m2 |
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140 | mova [r2+ 64], m4 |
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141 | mova [r2+ 96], m6 |
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142 | mova m10,[r2+ 16] ; { row[1] }[0-7] |
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143 | mova m8, [r2+ 48] ; { row[3] }[0-7] |
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144 | mova m13,[r2+ 80] ; { row[5] }[0-7] |
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145 | mova m14,[r2+112] ; { row[7] }[0-7] |
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146 | mova [r2+ 16], m1 |
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147 | mova [r2+ 48], m3 |
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148 | mova [r2+ 80], m5 |
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149 | mova [r2+112], m7 |
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150 | %ifidn %1, row |
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151 | pmullw m10,[r3+ 16] |
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152 | pmullw m8, [r3+ 48] |
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153 | pmullw m13,[r3+ 80] |
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154 | pmullw m14,[r3+112] |
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155 | %endif |
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156 | |||
157 | ; b0 = MUL(W1, row[1]); |
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158 | ; MAC(b0, W3, row[3]); |
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159 | ; b1 = MUL(W3, row[1]); |
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160 | ; MAC(b1, -W7, row[3]); |
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161 | ; b2 = MUL(W5, row[1]); |
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162 | ; MAC(b2, -W1, row[3]); |
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163 | ; b3 = MUL(W7, row[1]); |
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164 | ; MAC(b3, -W5, row[3]); |
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165 | SBUTTERFLY3 wd, 0, 1, 10, 8 ; { row[1], row[3] }[0-3]/[4-7] |
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166 | pmaddwd m2, m0, [w3_min_w7] |
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167 | pmaddwd m3, m1, [w3_min_w7] |
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168 | pmaddwd m4, m0, [w5_min_w1] |
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169 | pmaddwd m5, m1, [w5_min_w1] |
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170 | pmaddwd m6, m0, [w7_min_w5] |
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171 | pmaddwd m7, m1, [w7_min_w5] |
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172 | pmaddwd m0, [w1_plus_w3] |
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173 | pmaddwd m1, [w1_plus_w3] |
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174 | |||
175 | ; b0: +1*row[1]+2*row[3] |
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176 | ; b1: +2*row[1]-1*row[3] |
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177 | ; b2: -1*row[1]-1*row[3] |
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178 | ; b3: +1*row[1]+1*row[3] |
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179 | |||
180 | ; MAC(b0, W5, row[5]); |
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181 | ; MAC(b0, W7, row[7]); |
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182 | ; MAC(b1, -W1, row[5]); |
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183 | ; MAC(b1, -W5, row[7]); |
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184 | ; MAC(b2, W7, row[5]); |
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185 | ; MAC(b2, W3, row[7]); |
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186 | ; MAC(b3, W3, row[5]); |
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187 | ; MAC(b3, -W1, row[7]); |
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188 | SBUTTERFLY3 wd, 8, 9, 13, 14 ; { row[5], row[7] }[0-3]/[4-7] |
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189 | |||
190 | ; b0: -1*row[5]+1*row[7] |
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191 | ; b1: -1*row[5]+1*row[7] |
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192 | ; b2: +1*row[5]+2*row[7] |
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193 | ; b3: +2*row[5]-1*row[7] |
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194 | |||
195 | pmaddwd m10, m8, [w1_plus_w5] |
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196 | pmaddwd m11, m9, [w1_plus_w5] |
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197 | pmaddwd m12, m8, [w5_plus_w7] |
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198 | pmaddwd m13, m9, [w5_plus_w7] |
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199 | psubd m2, m10 ; b1[0-3] |
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200 | psubd m3, m11 ; b1[4-7] |
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201 | paddd m0, m12 ; b0[0-3] |
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202 | paddd m1, m13 ; b0[4-7] |
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203 | pmaddwd m12, m8, [w7_plus_w3] |
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204 | pmaddwd m13, m9, [w7_plus_w3] |
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205 | pmaddwd m8, [w3_min_w1] |
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206 | pmaddwd m9, [w3_min_w1] |
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207 | paddd m4, m12 ; b2[0-3] |
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208 | paddd m5, m13 ; b2[4-7] |
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209 | paddd m6, m8 ; b3[0-3] |
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210 | paddd m7, m9 ; b3[4-7] |
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211 | |||
212 | ; row[0] = (a0 + b0) >> 15; |
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213 | ; row[7] = (a0 - b0) >> 15; |
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214 | ; row[1] = (a1 + b1) >> 15; |
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215 | ; row[6] = (a1 - b1) >> 15; |
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216 | ; row[2] = (a2 + b2) >> 15; |
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217 | ; row[5] = (a2 - b2) >> 15; |
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218 | ; row[3] = (a3 + b3) >> 15; |
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219 | ; row[4] = (a3 - b3) >> 15; |
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220 | mova m8, [r2+ 0] ; a0[0-3] |
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221 | mova m9, [r2+16] ; a0[4-7] |
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222 | SUMSUB_SHPK m8, m9, m10, m11, m0, m1, %2 |
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223 | mova m0, [r2+32] ; a1[0-3] |
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224 | mova m1, [r2+48] ; a1[4-7] |
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225 | SUMSUB_SHPK m0, m1, m9, m11, m2, m3, %2 |
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226 | mova m1, [r2+64] ; a2[0-3] |
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227 | mova m2, [r2+80] ; a2[4-7] |
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228 | SUMSUB_SHPK m1, m2, m11, m3, m4, m5, %2 |
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229 | mova m2, [r2+96] ; a3[0-3] |
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230 | mova m3, [r2+112] ; a3[4-7] |
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231 | SUMSUB_SHPK m2, m3, m4, m5, m6, m7, %2 |
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232 | %endmacro |
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233 | |||
234 | ; void prores_idct_put_10_ |
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235 | ; int16_t *block, const int16_t *qmat); |
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236 | %macro idct_put_fn 1 |
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237 | cglobal prores_idct_put_10, 4, 4, %1 |
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238 | movsxd r1, r1d |
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239 | pxor m15, m15 ; zero |
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240 | |||
241 | ; for (i = 0; i < 8; i++) |
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242 | ; idctRowCondDC(block + i*8); |
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243 | mova m10,[r2+ 0] ; { row[0] }[0-7] |
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244 | mova m8, [r2+32] ; { row[2] }[0-7] |
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245 | mova m13,[r2+64] ; { row[4] }[0-7] |
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246 | mova m12,[r2+96] ; { row[6] }[0-7] |
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247 | |||
248 | pmullw m10,[r3+ 0] |
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249 | pmullw m8, [r3+32] |
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250 | pmullw m13,[r3+64] |
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251 | pmullw m12,[r3+96] |
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252 | |||
253 | IDCT_1D row, 15 |
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254 | |||
255 | ; transpose for second part of IDCT |
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256 | TRANSPOSE8x8W 8, 0, 1, 2, 4, 11, 9, 10, 3 |
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257 | mova [r2+ 16], m0 |
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258 | mova [r2+ 48], m2 |
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259 | mova [r2+ 80], m11 |
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260 | mova [r2+112], m10 |
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261 | SWAP 8, 10 |
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262 | SWAP 1, 8 |
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263 | SWAP 4, 13 |
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264 | SWAP 9, 12 |
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265 | |||
266 | ; for (i = 0; i < 8; i++) |
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267 | ; idctSparseColAdd(dest + i, line_size, block + i); |
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268 | IDCT_1D col, 18 |
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269 | |||
270 | ; clip/store |
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271 | mova m3, [pw_4] |
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272 | mova m5, [pw_1019] |
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273 | pmaxsw m8, m3 |
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274 | pmaxsw m0, m3 |
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275 | pmaxsw m1, m3 |
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276 | pmaxsw m2, m3 |
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277 | pmaxsw m4, m3 |
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278 | pmaxsw m11, m3 |
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279 | pmaxsw m9, m3 |
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280 | pmaxsw m10, m3 |
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281 | pminsw m8, m5 |
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282 | pminsw m0, m5 |
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283 | pminsw m1, m5 |
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284 | pminsw m2, m5 |
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285 | pminsw m4, m5 |
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286 | pminsw m11, m5 |
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287 | pminsw m9, m5 |
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288 | pminsw m10, m5 |
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289 | |||
290 | lea r2, [r1*3] |
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291 | mova [r0 ], m8 |
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292 | mova [r0+r1 ], m0 |
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293 | mova [r0+r1*2], m1 |
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294 | mova [r0+r2 ], m2 |
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295 | lea r0, [r0+r1*4] |
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296 | mova [r0 ], m4 |
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297 | mova [r0+r1 ], m11 |
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298 | mova [r0+r1*2], m9 |
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299 | mova [r0+r2 ], m10 |
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300 | RET |
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301 | %endmacro |
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302 | |||
303 | %macro SIGNEXTEND 2-3 |
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304 | %if cpuflag(sse4) ; dstlow, dsthigh |
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305 | movhlps %2, %1 |
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306 | pmovsxwd %1, %1 |
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307 | pmovsxwd %2, %2 |
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308 | %elif cpuflag(sse2) ; dstlow, dsthigh, tmp |
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309 | pxor %3, %3 |
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310 | pcmpgtw %3, %1 |
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311 | mova %2, %1 |
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312 | punpcklwd %1, %3 |
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313 | punpckhwd %2, %3 |
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314 | %endif |
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315 | %endmacro |
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316 | |||
317 | INIT_XMM sse2 |
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318 | idct_put_fn 16 |
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319 | INIT_XMM sse4 |
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320 | idct_put_fn 16 |
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321 | %if HAVE_AVX_EXTERNAL |
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322 | INIT_XMM avx |
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323 | idct_put_fn 16 |
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324 | %endif |
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325 | |||
326 | %endif>>><>2><2>2 |