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| 1 : | Isibaar | 1.1 | ;/************************************************************************** |
| 2 : | ; * | ||
| 3 : | ; * XVID MPEG-4 VIDEO CODEC | ||
| 4 : | ; * mmx cbp calc | ||
| 5 : | ; * | ||
| 6 : | ; * This program is an implementation of a part of one or more MPEG-4 | ||
| 7 : | ; * Video tools as specified in ISO/IEC 14496-2 standard. Those intending | ||
| 8 : | ; * to use this software module in hardware or software products are | ||
| 9 : | ; * advised that its use may infringe existing patents or copyrights, and | ||
| 10 : | ; * any such use would be at such party's own risk. The original | ||
| 11 : | ; * developer of this software module and his/her company, and subsequent | ||
| 12 : | ; * editors and their companies, will have no liability for use of this | ||
| 13 : | ; * software or modifications or derivatives thereof. | ||
| 14 : | ; * | ||
| 15 : | ; * This program is free software; you can redistribute it and/or modify | ||
| 16 : | ; * it under the terms of the GNU General Public License as published by | ||
| 17 : | ; * the Free Software Foundation; either version 2 of the License, or | ||
| 18 : | ; * (at your option) any later version. | ||
| 19 : | ; * | ||
| 20 : | ; * This program is distributed in the hope that it will be useful, | ||
| 21 : | ; * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 22 : | ; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 23 : | ; * GNU General Public License for more details. | ||
| 24 : | ; * | ||
| 25 : | ; * You should have received a copy of the GNU General Public License | ||
| 26 : | ; * along with this program; if not, write to the Free Software | ||
| 27 : | ; * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 28 : | ; * | ||
| 29 : | ; *************************************************************************/ | ||
| 30 : | |||
| 31 : | ;/************************************************************************** | ||
| 32 : | ; * | ||
| 33 : | ; * History: | ||
| 34 : | ; * | ||
| 35 : | Isibaar | 1.5 | ; * 14.06.2002 some further tweaks by -Skal- |
| 36 : | Isibaar | 1.1 | ; * 24.11.2001 inital version; (c)2001 peter ross <pross@cs.rmit.edu.au> |
| 37 : | ; * | ||
| 38 : | ; *************************************************************************/ | ||
| 39 : | |||
| 40 : | |||
| 41 : | bits 32 | ||
| 42 : | |||
| 43 : | section .data | ||
| 44 : | |||
| 45 : | %macro cglobal 1 | ||
| 46 : | Isibaar | 1.5 | %ifdef PREFIX |
| 47 : | global _%1 | ||
| 48 : | %define %1 _%1 | ||
| 49 : | %else | ||
| 50 : | global %1 | ||
| 51 : | %endif | ||
| 52 : | Isibaar | 1.1 | %endmacro |
| 53 : | |||
| 54 : | h | 1.3 | align 16 |
| 55 : | |||
| 56 : | ignore_dc dw 0, -1, -1, -1, -1, -1, -1, -1 | ||
| 57 : | Isibaar | 1.1 | |
| 58 : | section .text | ||
| 59 : | |||
| 60 : | Isibaar | 1.5 | cglobal calc_cbp_mmx |
| 61 : | Isibaar | 1.1 | |
| 62 : | ;=========================================================================== | ||
| 63 : | ; | ||
| 64 : | ; uint32_t calc_cbp_mmx(const int16_t coeff[6][64]); | ||
| 65 : | ; | ||
| 66 : | ;=========================================================================== | ||
| 67 : | |||
| 68 : | align 16 | ||
| 69 : | Isibaar | 1.5 | calc_cbp_mmx: |
| 70 : | push ebx | ||
| 71 : | push esi | ||
| 72 : | |||
| 73 : | mov esi, [esp + 8 + 4] ; coeff | ||
| 74 : | xor eax, eax ; cbp = 0 | ||
| 75 : | mov edx, (1 << 5) | ||
| 76 : | Isibaar | 1.1 | |
| 77 : | Isibaar | 1.5 | movq mm7, [ignore_dc] |
| 78 : | Isibaar | 1.1 | |
| 79 : | .loop | ||
| 80 : | Isibaar | 1.5 | movq mm0, [esi] |
| 81 : | movq mm1, [esi+8] | ||
| 82 : | pand mm0, mm7 | ||
| 83 : | |||
| 84 : | por mm0, [esi+16] | ||
| 85 : | por mm1, [esi+24] | ||
| 86 : | Isibaar | 1.1 | |
| 87 : | Isibaar | 1.5 | por mm0, [esi+32] |
| 88 : | por mm1, [esi+40] | ||
| 89 : | Isibaar | 1.1 | |
| 90 : | Isibaar | 1.5 | por mm0, [esi+48] |
| 91 : | por mm1, [esi+56] | ||
| 92 : | Isibaar | 1.1 | |
| 93 : | Isibaar | 1.5 | por mm0, [esi+64] |
| 94 : | por mm1, [esi+72] | ||
| 95 : | Isibaar | 1.1 | |
| 96 : | Isibaar | 1.5 | por mm0, [esi+80] |
| 97 : | por mm1, [esi+88] | ||
| 98 : | Isibaar | 1.1 | |
| 99 : | Isibaar | 1.5 | por mm0, [esi+96] |
| 100 : | por mm1, [esi+104] | ||
| 101 : | Isibaar | 1.1 | |
| 102 : | Isibaar | 1.5 | por mm0, [esi+112] |
| 103 : | por mm1, [esi+120] | ||
| 104 : | Isibaar | 1.1 | |
| 105 : | Isibaar | 1.5 | por mm0, mm1 |
| 106 : | movq mm1, mm0 | ||
| 107 : | psrlq mm1, 32 | ||
| 108 : | lea esi, [esi + 128] | ||
| 109 : | Isibaar | 1.1 | |
| 110 : | Isibaar | 1.5 | por mm0, mm1 |
| 111 : | movd ebx, mm0 | ||
| 112 : | Isibaar | 1.1 | |
| 113 : | Isibaar | 1.5 | test ebx, ebx |
| 114 : | jz .next | ||
| 115 : | or eax, edx ; cbp |= 1 << (5-i) | ||
| 116 : | Isibaar | 1.1 | |
| 117 : | Isibaar | 1.5 | .next |
| 118 : | shr edx,1 | ||
| 119 : | jnc .loop | ||
| 120 : | Isibaar | 1.1 | |
| 121 : | Isibaar | 1.5 | pop esi |
| 122 : | pop ebx | ||
| 123 : | Isibaar | 1.1 | |
| 124 : | Isibaar | 1.5 | ret |
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