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;/************************************************************************** |
;/**************************************************************************** |
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; * |
; * |
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; * XVID MPEG-4 VIDEO CODEC |
; * XVID MPEG-4 VIDEO CODEC |
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; * mmx cbp calc |
; * - MMX CBP computation - |
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; * |
; * |
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; * This file is part of XviD, a free MPEG-4 video encoder/decoder |
; * Copyright (C) 2005 Carlo Bramini <carlo.bramix@libero.it> |
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; * 2001-2003 Peter Ross <pross@xvid.org> |
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; * 2002-2003 Pascal Massimino <skal@planet-d.net> |
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; * |
; * |
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; * XviD is free software; you can redistribute it and/or modify it |
; * This program is free software ; you can redistribute it and/or modify |
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; * under the terms of the GNU General Public License as published by |
; * it under the terms of the GNU General Public License as published by |
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; * the Free Software Foundation; either version 2 of the License, or |
; * the Free Software Foundation; either version 2 of the License, or |
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; * (at your option) any later version. |
; * (at your option) any later version. |
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; * |
; * |
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; * along with this program; if not, write to the Free Software |
; * along with this program; if not, write to the Free Software |
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; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
; * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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; * |
; * |
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; * Under section 8 of the GNU General Public License, the copyright |
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; * holders of XVID explicitly forbid distribution in the following |
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; * countries: |
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; * |
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; * - Japan |
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; * - United States of America |
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; * |
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; * Linking XviD statically or dynamically with other modules is making a |
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; * combined work based on XviD. Thus, the terms and conditions of the |
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; * GNU General Public License cover the whole combination. |
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; * |
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; * As a special exception, the copyright holders of XviD give you |
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; * permission to link XviD with independent modules that communicate with |
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; * XviD solely through the VFW1.1 and DShow interfaces, regardless of the |
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; * license terms of these independent modules, and to copy and distribute |
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; * the resulting combined work under terms of your choice, provided that |
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; * every copy of the combined work is accompanied by a complete copy of |
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; * the source code of XviD (the version of XviD used to produce the |
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; * combined work), being distributed under the terms of the GNU General |
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; * Public License plus this exception. An independent module is a module |
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; * which is not derived from or based on XviD. |
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; * |
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; * Note that people who make modified versions of XviD are not obligated |
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; * to grant this special exception for their modified versions; it is |
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; * their choice whether to do so. The GNU General Public License gives |
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; * permission to release a modified version without this exception; this |
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; * exception also makes it possible to release a modified version which |
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; * carries forward this exception. |
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; * |
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; * $Id$ |
; * $Id$ |
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; * |
; * |
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; *************************************************************************/ |
; ***************************************************************************/ |
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bits 32 |
BITS 32 |
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section .data |
;============================================================================= |
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; Macros |
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;============================================================================= |
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%macro cglobal 1 |
%macro cglobal 1 |
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%ifdef PREFIX |
%ifdef PREFIX |
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%ifdef MARK_FUNCS |
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global _%1:function %1.endfunc-%1 |
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%define %1 _%1:function %1.endfunc-%1 |
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%else |
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global _%1 |
global _%1 |
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%define %1 _%1 |
%define %1 _%1 |
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%endif |
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%else |
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%ifdef MARK_FUNCS |
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global %1:function %1.endfunc-%1 |
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%else |
%else |
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global %1 |
global %1 |
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%endif |
%endif |
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%endif |
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%endmacro |
%endmacro |
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align 16 |
;============================================================================= |
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; Local data |
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;============================================================================= |
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ignore_dc dw 0, -1, -1, -1, -1, -1, -1, -1 |
%ifdef FORMAT_COFF |
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SECTION .rodata |
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%else |
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SECTION .rodata align=16 |
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%endif |
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section .text |
ALIGN 16 |
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mult_mask: |
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db 0x10,0x20,0x04,0x08,0x01,0x02,0x00,0x00 |
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ignore_dc: |
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dw 0, -1, -1, -1 |
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;============================================================================= |
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; Code |
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;============================================================================= |
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SECTION .text |
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cglobal calc_cbp_mmx |
cglobal calc_cbp_mmx |
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;=========================================================================== |
;----------------------------------------------------------------------------- |
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; |
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; uint32_t calc_cbp_mmx(const int16_t coeff[6][64]); |
; uint32_t calc_cbp_mmx(const int16_t coeff[6][64]); |
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; |
;----------------------------------------------------------------------------- |
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;=========================================================================== |
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align 16 |
%macro MAKE_LOAD 1 |
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calc_cbp_mmx: |
por mm0, [eax-128*1+%1*8] |
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push ebx |
por mm1, [eax+128*0+%1*8] |
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push esi |
por mm2, [eax+128*1+%1*8] |
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por mm3, [eax+128*2+%1*8] |
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por mm4, [eax+128*3+%1*8] |
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por mm5, [eax+128*4+%1*8] |
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%endmacro |
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mov esi, [esp + 8 + 4] ; coeff |
ALIGN 16 |
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xor eax, eax ; cbp = 0 |
calc_cbp_mmx: |
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mov edx, (1 << 5) |
mov eax, [esp + 4] ; coeff |
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movq mm7, [ignore_dc] |
movq mm7, [ignore_dc] |
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pxor mm6, mm6 ; used only for comparing |
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.loop |
movq mm0, [eax+128*0] |
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movq mm0, [esi] |
movq mm1, [eax+128*1] |
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movq mm1, [esi+8] |
movq mm2, [eax+128*2] |
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movq mm3, [eax+128*3] |
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movq mm4, [eax+128*4] |
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movq mm5, [eax+128*5] |
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add eax, 8+128 |
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pand mm0, mm7 |
pand mm0, mm7 |
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pand mm1, mm7 |
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pand mm2, mm7 |
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pand mm3, mm7 |
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pand mm4, mm7 |
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pand mm5, mm7 |
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MAKE_LOAD 0 |
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MAKE_LOAD 1 |
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MAKE_LOAD 2 |
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MAKE_LOAD 3 |
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MAKE_LOAD 4 |
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MAKE_LOAD 5 |
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MAKE_LOAD 6 |
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MAKE_LOAD 7 |
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MAKE_LOAD 8 |
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MAKE_LOAD 9 |
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MAKE_LOAD 10 |
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MAKE_LOAD 11 |
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MAKE_LOAD 12 |
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MAKE_LOAD 13 |
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MAKE_LOAD 14 |
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movq mm7, [mult_mask] |
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packssdw mm0, mm1 |
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packssdw mm2, mm3 |
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packssdw mm4, mm5 |
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packssdw mm0, mm2 |
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packssdw mm4, mm6 |
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pcmpgtw mm0, mm6 |
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pcmpgtw mm4, mm6 |
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psrlw mm0, 15 |
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psrlw mm4, 15 |
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packuswb mm0, mm4 |
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pmaddwd mm0, mm7 |
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por mm0, [esi+16] |
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por mm1, [esi+24] |
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por mm0, [esi+32] |
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por mm1, [esi+40] |
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por mm0, [esi+48] |
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por mm1, [esi+56] |
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por mm0, [esi+64] |
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por mm1, [esi+72] |
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por mm0, [esi+80] |
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por mm1, [esi+88] |
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por mm0, [esi+96] |
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por mm1, [esi+104] |
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por mm0, [esi+112] |
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por mm1, [esi+120] |
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por mm0, mm1 |
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movq mm1, mm0 |
movq mm1, mm0 |
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psrlq mm1, 32 |
psrlq mm1, 32 |
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lea esi, [esi + 128] |
paddusb mm0, mm1 |
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por mm0, mm1 |
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movd ebx, mm0 |
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test ebx, ebx |
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jz .next |
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or eax, edx ; cbp |= 1 << (5-i) |
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.next |
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shr edx,1 |
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jnc .loop |
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pop esi |
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pop ebx |
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movd eax, mm0 |
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shr eax, 8 |
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and eax, 0x3F |
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ret |
ret |
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.endfunc |
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