| 1 | ;****************************************************************************** |
| 2 | ;* MMX-optimized H.263 loop filter |
| 3 | ;* Copyright (c) 2003-2013 Michael Niedermayer |
| 4 | ;* Copyright (c) 2013 Daniel Kang |
| 5 | ;* |
| 6 | ;* This file is part of FFmpeg. |
| 7 | ;* |
| 8 | ;* FFmpeg is free software; you can redistribute it and/or |
| 9 | ;* modify it under the terms of the GNU Lesser General Public |
| 10 | ;* License as published by the Free Software Foundation; either |
| 11 | ;* version 2.1 of the License, or (at your option) any later version. |
| 12 | ;* |
| 13 | ;* FFmpeg is distributed in the hope that it will be useful, |
| 14 | ;* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | ;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | ;* Lesser General Public License for more details. |
| 17 | ;* |
| 18 | ;* You should have received a copy of the GNU Lesser General Public |
| 19 | ;* License along with FFmpeg; if not, write to the Free Software |
| 20 | ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | ;****************************************************************************** |
| 22 | |
| 23 | %include "libavutil/x86/x86util.asm" |
| 24 | |
| 25 | SECTION_RODATA |
| 26 | cextern pb_FC |
| 27 | cextern h263_loop_filter_strength |
| 28 | |
| 29 | SECTION_TEXT |
| 30 | |
| 31 | %macro H263_LOOP_FILTER 5 |
| 32 | pxor m7, m7 |
| 33 | mova m0, [%1] |
| 34 | mova m1, [%1] |
| 35 | mova m2, [%4] |
| 36 | mova m3, [%4] |
| 37 | punpcklbw m0, m7 |
| 38 | punpckhbw m1, m7 |
| 39 | punpcklbw m2, m7 |
| 40 | punpckhbw m3, m7 |
| 41 | psubw m0, m2 |
| 42 | psubw m1, m3 |
| 43 | mova m2, [%2] |
| 44 | mova m3, [%2] |
| 45 | mova m4, [%3] |
| 46 | mova m5, [%3] |
| 47 | punpcklbw m2, m7 |
| 48 | punpckhbw m3, m7 |
| 49 | punpcklbw m4, m7 |
| 50 | punpckhbw m5, m7 |
| 51 | psubw m4, m2 |
| 52 | psubw m5, m3 |
| 53 | psllw m4, 2 |
| 54 | psllw m5, 2 |
| 55 | paddw m4, m0 |
| 56 | paddw m5, m1 |
| 57 | pxor m6, m6 |
| 58 | pcmpgtw m6, m4 |
| 59 | pcmpgtw m7, m5 |
| 60 | pxor m4, m6 |
| 61 | pxor m5, m7 |
| 62 | psubw m4, m6 |
| 63 | psubw m5, m7 |
| 64 | psrlw m4, 3 |
| 65 | psrlw m5, 3 |
| 66 | packuswb m4, m5 |
| 67 | packsswb m6, m7 |
| 68 | pxor m7, m7 |
| 69 | movd m2, %5 |
| 70 | punpcklbw m2, m2 |
| 71 | punpcklbw m2, m2 |
| 72 | punpcklbw m2, m2 |
| 73 | psubusb m2, m4 |
| 74 | mova m3, m2 |
| 75 | psubusb m3, m4 |
| 76 | psubb m2, m3 |
| 77 | mova m3, [%2] |
| 78 | mova m4, [%3] |
| 79 | pxor m3, m6 |
| 80 | pxor m4, m6 |
| 81 | paddusb m3, m2 |
| 82 | psubusb m4, m2 |
| 83 | pxor m3, m6 |
| 84 | pxor m4, m6 |
| 85 | paddusb m2, m2 |
| 86 | packsswb m0, m1 |
| 87 | pcmpgtb m7, m0 |
| 88 | pxor m0, m7 |
| 89 | psubb m0, m7 |
| 90 | mova m1, m0 |
| 91 | psubusb m0, m2 |
| 92 | psubb m1, m0 |
| 93 | pand m1, [pb_FC] |
| 94 | psrlw m1, 2 |
| 95 | pxor m1, m7 |
| 96 | psubb m1, m7 |
| 97 | mova m5, [%1] |
| 98 | mova m6, [%4] |
| 99 | psubb m5, m1 |
| 100 | paddb m6, m1 |
| 101 | %endmacro |
| 102 | |
| 103 | INIT_MMX mmx |
| 104 | ; void ff_h263_v_loop_filter_mmx(uint8_t *src, int stride, int qscale) |
| 105 | cglobal h263_v_loop_filter, 3,5 |
| 106 | movsxdifnidn r1, r1d |
| 107 | movsxdifnidn r2, r2d |
| 108 | |
| 109 | lea r4, [h263_loop_filter_strength] |
| 110 | movzx r3d, BYTE [r4+r2] |
| 111 | movsx r2, r3b |
| 112 | shl r2, 1 |
| 113 | |
| 114 | mov r3, r0 |
| 115 | sub r3, r1 |
| 116 | mov r4, r3 |
| 117 | sub r4, r1 |
| 118 | H263_LOOP_FILTER r4, r3, r0, r0+r1, r2d |
| 119 | |
| 120 | mova [r3], m3 |
| 121 | mova [r0], m4 |
| 122 | mova [r4], m5 |
| 123 | mova [r0+r1], m6 |
| 124 | RET |
| 125 | |
| 126 | %macro TRANSPOSE4X4 2 |
| 127 | movd m0, [%1] |
| 128 | movd m1, [%1+r1] |
| 129 | movd m2, [%1+r1*2] |
| 130 | movd m3, [%1+r3] |
| 131 | punpcklbw m0, m1 |
| 132 | punpcklbw m2, m3 |
| 133 | mova m1, m0 |
| 134 | punpcklwd m0, m2 |
| 135 | punpckhwd m1, m2 |
| 136 | movd [%2+ 0], m0 |
| 137 | punpckhdq m0, m0 |
| 138 | movd [%2+ 8], m0 |
| 139 | movd [%2+16], m1 |
| 140 | punpckhdq m1, m1 |
| 141 | movd [%2+24], m1 |
| 142 | %endmacro |
| 143 | |
| 144 | |
| 145 | ; void ff_h263_h_loop_filter_mmx(uint8_t *src, int stride, int qscale) |
| 146 | INIT_MMX mmx |
| 147 | cglobal h263_h_loop_filter, 3,5,0,32 |
| 148 | movsxdifnidn r1, r1d |
| 149 | movsxdifnidn r2, r2d |
| 150 | |
| 151 | lea r4, [h263_loop_filter_strength] |
| 152 | movzx r3d, BYTE [r4+r2] |
| 153 | movsx r2, r3b |
| 154 | shl r2, 1 |
| 155 | |
| 156 | sub r0, 2 |
| 157 | lea r3, [r1*3] |
| 158 | |
| 159 | TRANSPOSE4X4 r0, rsp |
| 160 | lea r4, [r0+r1*4] |
| 161 | TRANSPOSE4X4 r4, rsp+4 |
| 162 | |
| 163 | H263_LOOP_FILTER rsp, rsp+8, rsp+16, rsp+24, r2d |
| 164 | |
| 165 | mova m1, m5 |
| 166 | mova m0, m4 |
| 167 | punpcklbw m5, m3 |
| 168 | punpcklbw m4, m6 |
| 169 | punpckhbw m1, m3 |
| 170 | punpckhbw m0, m6 |
| 171 | mova m3, m5 |
| 172 | mova m6, m1 |
| 173 | punpcklwd m5, m4 |
| 174 | punpcklwd m1, m0 |
| 175 | punpckhwd m3, m4 |
| 176 | punpckhwd m6, m0 |
| 177 | movd [r0], m5 |
| 178 | punpckhdq m5, m5 |
| 179 | movd [r0+r1*1], m5 |
| 180 | movd [r0+r1*2], m3 |
| 181 | punpckhdq m3, m3 |
| 182 | movd [r0+r3], m3 |
| 183 | movd [r4], m1 |
| 184 | punpckhdq m1, m1 |
| 185 | movd [r4+r1*1], m1 |
| 186 | movd [r4+r1*2], m6 |
| 187 | punpckhdq m6, m6 |
| 188 | movd [r4+r3], m6 |
| 189 | RET |