;/**************************************************************************; *; *  XVID MPEG-4 VIDEO CODEC; *  sse2 cbp calc; *; *  This file is part of XviD, a free MPEG-4 video encoder/decoder; *; *  XviD 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.; *; *  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; *; *  Under section 8 of the GNU General Public License, the copyright; *  holders of XVID explicitly forbid distribution in the following; *  countries:; *; *    - Japan; *    - United States of America; *; *  Linking XviD statically or dynamically with other modules is making a; *  combined work based on XviD.  Thus, the terms and conditions of the; *  GNU General Public License cover the whole combination.; *; *  As a special exception, the copyright holders of XviD give you; *  permission to link XviD with independent modules that communicate with; *  XviD solely through the VFW1.1 and DShow interfaces, regardless of the; *  license terms of these independent modules, and to copy and distribute; *  the resulting combined work under terms of your choice, provided that; *  every copy of the combined work is accompanied by a complete copy of; *  the source code of XviD (the version of XviD used to produce the; *  combined work), being distributed under the terms of the GNU General; *  Public License plus this exception.  An independent module is a module; *  which is not derived from or based on XviD.; *; *  Note that people who make modified versions of XviD are not obligated; *  to grant this special exception for their modified versions; it is; *  their choice whether to do so.  The GNU General Public License gives; *  permission to release a modified version without this exception; this; *  exception also makes it possible to release a modified version which; *  carries forward this exception.; *; * $Id: cbp_sse2.asm,v 1.2 2002/11/17 00:57:58 edgomez Exp $; *; *************************************************************************/bits 32section .data%macro cglobal 1	%ifdef PREFIX		global _%1		%define %1 _%1	%else		global %1	%endif%endmacroalign 16ignore_dc	dw		0, -1, -1, -1, -1, -1, -1, -1section .textcglobal calc_cbp_sse2;===========================================================================;; uint32_t calc_cbp_sse2(const int16_t coeff[6][64]);;; not enabled - slower than mmx?;;===========================================================================%macro LOOP_SSE2 1    movdqa	xmm0, [edx+(%1)*128]	pand	xmm0, xmm7	movdqa	xmm1, [edx+(%1)*128+16]	por		xmm0, [edx+(%1)*128+32]	por		xmm1, [edx+(%1)*128+48]	por		xmm0, [edx+(%1)*128+64]	por		xmm1, [edx+(%1)*128+80]	por		xmm0, [edx+(%1)*128+96]	por		xmm1, [edx+(%1)*128+112]	por		xmm0, xmm1     ; xmm0 = xmm1 = 128 bits worth of info	psadbw	xmm0, xmm6     ; contains 2 dwords with sums	movhlps	xmm1, xmm0     ; move high dword from xmm0 to low xmm1	por		xmm0, xmm1     ; combine	movd	ecx, xmm0      ; if ecx set, values were found	test    ecx, ecx%endmacroalign 16calc_cbp_sse2:    mov     edx, [esp+4]        ; coeff[]    xor		eax, eax		    ; cbp = 0	movdqu	xmm7, [ignore_dc]	; mask to ignore dc value	pxor	xmm6, xmm6          ; zero  LOOP_SSE2 0	test ecx, ecx		jz		.blk2    or eax, (1<<5).blk2  LOOP_SSE2 1	test ecx, ecx		jz		.blk3  or eax, (1<<4).blk3  LOOP_SSE2 2	test ecx, ecx		jz		.blk4  or eax, (1<<3).blk4  LOOP_SSE2 3	test ecx, ecx		jz		.blk5  or eax, (1<<2).blk5  LOOP_SSE2 4	test ecx, ecx		jz		.blk6  or eax, (1<<1).blk6  LOOP_SSE2 5	test ecx, ecx		jz		.finished  or eax, (1<<0).finished				  ret