--- trunk/xvidcore/src/bitstream/x86_asm/cbp_mmx.asm 2004/03/18 16:11:28 1381 +++ trunk/xvidcore/src/bitstream/x86_asm/cbp_mmx.asm 2004/03/22 22:36:25 1382 @@ -1,46 +1,34 @@ -;/************************************************************************** +;/**************************************************************************** ; * -; * XVID MPEG-4 VIDEO CODEC -; * mmx cbp calc +; * XVID MPEG-4 VIDEO CODEC +; * - MMX CBP computation - ; * -; * This program is an implementation of a part of one or more MPEG-4 -; * Video tools as specified in ISO/IEC 14496-2 standard. Those intending -; * to use this software module in hardware or software products are -; * advised that its use may infringe existing patents or copyrights, and -; * any such use would be at such party's own risk. The original -; * developer of this software module and his/her company, and subsequent -; * editors and their companies, will have no liability for use of this -; * software or modifications or derivatives thereof. +; * Copyright (C) 2001-2003 Peter Ross +; * 2002-2003 Pascal Massimino ; * -; * This program is free software; you can redistribute it and/or modify -; * it under the terms of the GNU General Public License as published by -; * the Free Software Foundation; either version 2 of the License, or -; * (at your option) any later version. +; * This program is free software ; you can redistribute it and/or modify +; * it under the terms of the GNU General Public License as published by +; * the Free Software Foundation ; either version 2 of the License, or +; * (at your option) any later version. ; * -; * This program is distributed in the hope that it will be useful, -; * but WITHOUT ANY WARRANTY; without even the implied warranty of -; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -; * GNU General Public License for more details. +; * This program is distributed in the hope that it will be useful, +; * but WITHOUT ANY WARRANTY ; without even the implied warranty of +; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +; * GNU General Public License for more details. ; * -; * You should have received a copy of the GNU General Public License -; * along with this program; if not, write to the Free Software -; * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +; * You should have received a copy of the GNU General Public License +; * along with this program ; if not, write to the Free Software +; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ; * -; *************************************************************************/ - -;/************************************************************************** -; * -; * History: -; * -; * 14.06.2002 some further tweaks by -Skal- -; * 24.11.2001 inital version; (c)2001 peter ross +; * $Id: cbp_mmx.asm,v 1.9 2004-03-22 22:36:23 edgomez Exp $ ; * -; *************************************************************************/ +; ***************************************************************************/ +BITS 32 -bits 32 - -section .data +;============================================================================= +; Macros +;============================================================================= %macro cglobal 1 %ifdef PREFIX @@ -51,74 +39,87 @@ %endif %endmacro -align 16 - -ignore_dc dw 0, -1, -1, -1, -1, -1, -1, -1 +;============================================================================= +; Local data +;============================================================================= + +%ifdef FORMAT_COFF +SECTION .rodata data +%else +SECTION .rodata data align=16 +%endif + +ALIGN 16 + +ignore_dc: + dw 0, -1, -1, -1, -1, -1, -1, -1 + +;============================================================================= +; Code +;============================================================================= -section .text +SECTION .text cglobal calc_cbp_mmx -;=========================================================================== -; +;----------------------------------------------------------------------------- ; uint32_t calc_cbp_mmx(const int16_t coeff[6][64]); -; -;=========================================================================== +;----------------------------------------------------------------------------- -align 16 +ALIGN 16 calc_cbp_mmx: - push ebx - push esi + push ebx + push esi - mov esi, [esp + 8 + 4] ; coeff - xor eax, eax ; cbp = 0 - mov edx, (1 << 5) + mov esi, [esp + 8 + 4] ; coeff + xor eax, eax ; cbp = 0 + mov edx, (1 << 5) - movq mm7, [ignore_dc] + movq mm7, [ignore_dc] .loop - movq mm0, [esi] - movq mm1, [esi+8] - pand mm0, mm7 + movq mm0, [esi] + movq mm1, [esi+8] + pand mm0, mm7 - por mm0, [esi+16] - por mm1, [esi+24] + por mm0, [esi+16] + por mm1, [esi+24] - por mm0, [esi+32] - por mm1, [esi+40] + por mm0, [esi+32] + por mm1, [esi+40] - por mm0, [esi+48] - por mm1, [esi+56] + por mm0, [esi+48] + por mm1, [esi+56] - por mm0, [esi+64] - por mm1, [esi+72] + por mm0, [esi+64] + por mm1, [esi+72] - por mm0, [esi+80] - por mm1, [esi+88] + por mm0, [esi+80] + por mm1, [esi+88] - por mm0, [esi+96] - por mm1, [esi+104] + por mm0, [esi+96] + por mm1, [esi+104] - por mm0, [esi+112] - por mm1, [esi+120] + por mm0, [esi+112] + por mm1, [esi+120] - por mm0, mm1 - movq mm1, mm0 - psrlq mm1, 32 - lea esi, [esi + 128] + por mm0, mm1 + movq mm1, mm0 + psrlq mm1, 32 + lea esi, [esi + 128] - por mm0, mm1 - movd ebx, mm0 + por mm0, mm1 + movd ebx, mm0 - test ebx, ebx - jz .next - or eax, edx ; cbp |= 1 << (5-i) + test ebx, ebx + jz .next + or eax, edx ; cbp |= 1 << (5-i) .next - shr edx,1 - jnc .loop + shr edx,1 + jnc .loop + + pop esi + pop ebx - pop esi - pop ebx - - ret \ No newline at end of file + ret