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Original Path: trunk/xvidcore/src/bitstream/x86_asm/cbp_mmx.asm
| 1 : | Isibaar | 3 | ;/************************************************************************** |
| 2 : | ; * | ||
| 3 : | edgomez | 655 | ; * XVID MPEG-4 VIDEO CODEC |
| 4 : | ; * mmx cbp calc | ||
| 5 : | Isibaar | 3 | ; * |
| 6 : | edgomez | 655 | ; * This file is part of XviD, a free MPEG-4 video encoder/decoder |
| 7 : | Isibaar | 3 | ; * |
| 8 : | edgomez | 655 | ; * XviD is free software; you can redistribute it and/or modify it |
| 9 : | ; * under the terms of the GNU General Public License as published by | ||
| 10 : | ; * the Free Software Foundation; either version 2 of the License, or | ||
| 11 : | ; * (at your option) any later version. | ||
| 12 : | Isibaar | 3 | ; * |
| 13 : | edgomez | 655 | ; * This program 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 | ||
| 16 : | ; * GNU General Public License for more details. | ||
| 17 : | Isibaar | 3 | ; * |
| 18 : | edgomez | 655 | ; * You should have received a copy of the GNU General Public License |
| 19 : | ; * along with this program; if not, write to the Free Software | ||
| 20 : | ; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 21 : | Isibaar | 3 | ; * |
| 22 : | edgomez | 655 | ; * Under section 8 of the GNU General Public License, the copyright |
| 23 : | ; * holders of XVID explicitly forbid distribution in the following | ||
| 24 : | ; * countries: | ||
| 25 : | Isibaar | 3 | ; * |
| 26 : | edgomez | 655 | ; * - Japan |
| 27 : | ; * - United States of America | ||
| 28 : | Isibaar | 3 | ; * |
| 29 : | edgomez | 655 | ; * Linking XviD statically or dynamically with other modules is making a |
| 30 : | ; * combined work based on XviD. Thus, the terms and conditions of the | ||
| 31 : | ; * GNU General Public License cover the whole combination. | ||
| 32 : | Isibaar | 3 | ; * |
| 33 : | edgomez | 655 | ; * As a special exception, the copyright holders of XviD give you |
| 34 : | ; * permission to link XviD with independent modules that communicate with | ||
| 35 : | ; * XviD solely through the VFW1.1 and DShow interfaces, regardless of the | ||
| 36 : | ; * license terms of these independent modules, and to copy and distribute | ||
| 37 : | ; * the resulting combined work under terms of your choice, provided that | ||
| 38 : | ; * every copy of the combined work is accompanied by a complete copy of | ||
| 39 : | ; * the source code of XviD (the version of XviD used to produce the | ||
| 40 : | ; * combined work), being distributed under the terms of the GNU General | ||
| 41 : | ; * Public License plus this exception. An independent module is a module | ||
| 42 : | ; * which is not derived from or based on XviD. | ||
| 43 : | ; * | ||
| 44 : | ; * Note that people who make modified versions of XviD are not obligated | ||
| 45 : | ; * to grant this special exception for their modified versions; it is | ||
| 46 : | ; * their choice whether to do so. The GNU General Public License gives | ||
| 47 : | ; * permission to release a modified version without this exception; this | ||
| 48 : | ; * exception also makes it possible to release a modified version which | ||
| 49 : | ; * carries forward this exception. | ||
| 50 : | ; * | ||
| 51 : | ; * $Id: cbp_mmx.asm,v 1.7 2002-11-17 00:57:57 edgomez Exp $ | ||
| 52 : | ; * | ||
| 53 : | Isibaar | 3 | ; *************************************************************************/ |
| 54 : | |||
| 55 : | bits 32 | ||
| 56 : | |||
| 57 : | section .data | ||
| 58 : | |||
| 59 : | %macro cglobal 1 | ||
| 60 : | Isibaar | 262 | %ifdef PREFIX |
| 61 : | global _%1 | ||
| 62 : | %define %1 _%1 | ||
| 63 : | %else | ||
| 64 : | global %1 | ||
| 65 : | %endif | ||
| 66 : | Isibaar | 3 | %endmacro |
| 67 : | |||
| 68 : | h | 126 | align 16 |
| 69 : | Isibaar | 3 | |
| 70 : | h | 126 | ignore_dc dw 0, -1, -1, -1, -1, -1, -1, -1 |
| 71 : | Isibaar | 3 | |
| 72 : | section .text | ||
| 73 : | |||
| 74 : | Isibaar | 262 | cglobal calc_cbp_mmx |
| 75 : | Isibaar | 3 | |
| 76 : | ;=========================================================================== | ||
| 77 : | ; | ||
| 78 : | ; uint32_t calc_cbp_mmx(const int16_t coeff[6][64]); | ||
| 79 : | ; | ||
| 80 : | ;=========================================================================== | ||
| 81 : | |||
| 82 : | align 16 | ||
| 83 : | Isibaar | 262 | calc_cbp_mmx: |
| 84 : | push ebx | ||
| 85 : | push esi | ||
| 86 : | Isibaar | 3 | |
| 87 : | Isibaar | 262 | mov esi, [esp + 8 + 4] ; coeff |
| 88 : | xor eax, eax ; cbp = 0 | ||
| 89 : | mov edx, (1 << 5) | ||
| 90 : | Isibaar | 3 | |
| 91 : | Isibaar | 262 | movq mm7, [ignore_dc] |
| 92 : | |||
| 93 : | Isibaar | 3 | .loop |
| 94 : | Isibaar | 262 | movq mm0, [esi] |
| 95 : | movq mm1, [esi+8] | ||
| 96 : | pand mm0, mm7 | ||
| 97 : | Isibaar | 3 | |
| 98 : | Isibaar | 262 | por mm0, [esi+16] |
| 99 : | por mm1, [esi+24] | ||
| 100 : | Isibaar | 3 | |
| 101 : | Isibaar | 262 | por mm0, [esi+32] |
| 102 : | por mm1, [esi+40] | ||
| 103 : | Isibaar | 3 | |
| 104 : | Isibaar | 262 | por mm0, [esi+48] |
| 105 : | por mm1, [esi+56] | ||
| 106 : | Isibaar | 3 | |
| 107 : | Isibaar | 262 | por mm0, [esi+64] |
| 108 : | por mm1, [esi+72] | ||
| 109 : | Isibaar | 3 | |
| 110 : | Isibaar | 262 | por mm0, [esi+80] |
| 111 : | por mm1, [esi+88] | ||
| 112 : | Isibaar | 3 | |
| 113 : | Isibaar | 262 | por mm0, [esi+96] |
| 114 : | por mm1, [esi+104] | ||
| 115 : | Isibaar | 3 | |
| 116 : | Isibaar | 262 | por mm0, [esi+112] |
| 117 : | por mm1, [esi+120] | ||
| 118 : | Isibaar | 3 | |
| 119 : | Isibaar | 262 | por mm0, mm1 |
| 120 : | movq mm1, mm0 | ||
| 121 : | psrlq mm1, 32 | ||
| 122 : | lea esi, [esi + 128] | ||
| 123 : | Isibaar | 3 | |
| 124 : | Isibaar | 262 | por mm0, mm1 |
| 125 : | movd ebx, mm0 | ||
| 126 : | Isibaar | 3 | |
| 127 : | Isibaar | 262 | test ebx, ebx |
| 128 : | jz .next | ||
| 129 : | or eax, edx ; cbp |= 1 << (5-i) | ||
| 130 : | Isibaar | 3 | |
| 131 : | Isibaar | 262 | .next |
| 132 : | shr edx,1 | ||
| 133 : | jnc .loop | ||
| 134 : | Isibaar | 3 | |
| 135 : | Isibaar | 262 | pop esi |
| 136 : | pop ebx | ||
| 137 : | Isibaar | 3 | |
| 138 : | Isibaar | 262 | ret |
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