;/*****************************************************************************; *; *  XVID MPEG-4 VIDEO CODEC; *	 mmx yuyv/uyvy to yuv planar conversion ; *; *  Copyright(C) 2002 Peter Ross <pross@xvid.org>; *; *  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: yuyv_to_yv12_mmx.asm,v 1.3 2002/11/17 00:20:30 edgomez Exp $; *; ****************************************************************************/bits 32section .data%macro cglobal 1 	%ifdef PREFIX		global _%1 		%define %1 _%1	%else		global %1	%endif%endmacroalign 16section .data;===========================================================================; masks for extracting yuv components;===========================================================================;			y     u     y     v     y     u     y     vmask1	db	0xff, 0,    0xff, 0,    0xff, 0,    0xff, 0mask2	db	0,    0xff, 0,    0xff, 0,    0xff, 0,    0xffsection .text;===========================================================================;;	void yuyv_to_yv12_mmx(uint8_t * const y_out,;						uint8_t * const u_out,;						uint8_t * const v_out,;						const uint8_t * const src,;						const uint32_t width,;						const uint32_t height,;						const uint32_t stride);;;	width must be multiple of 8;	does not flip;	~30% faster than plain c;;===========================================================================align 16cglobal yuyv_to_yv12_mmxyuyv_to_yv12_mmx		push ebx		push ecx		push esi		push edi					push ebp		; STACK BASE = 20		; some global consants		mov ecx, [esp + 20 + 20]	; width		mov eax, [esp + 20 + 28]	; stride		sub eax, ecx				; eax = stride - width		mov edx, eax		add edx, [esp + 20 + 28]	; edx = y_dif + stride		push edx					; [esp + 12] = y_dif		shr eax, 1		push eax					; [esp + 8] = uv_dif		shr ecx, 3		push ecx					; [esp + 4] = width/8		sub	esp, 4					; [esp + 0] = tmp_height_counter						; STACK_BASE = 36				movq mm6, [mask1]		movq mm7, [mask2]		mov edi, [esp + 36 + 4]		; y_out		mov ebx, [esp + 36 + 8]		; u_out		mov edx, [esp + 36 + 12]	; v_out		mov esi, [esp + 36 + 16]	; src		mov eax, [esp + 36 + 20]		mov ebp, [esp + 36 + 24]		mov ecx, [esp + 36 + 28]	; ecx = stride		shr ebp, 1					; ebp = height /= 2		add eax, eax				; eax = 2 * width.yloop		mov [esp], ebp		mov ebp, [esp + 4]			; width/8.xloop		movq mm2, [esi]				; y 1st row		movq mm3, [esi + 8]		movq mm0, mm2		movq mm1, mm3		pand mm2, mm6 ; mask1		pand mm3, mm6 ; mask1		pand mm0, mm7 ; mask2		pand mm1, mm7 ; mask2		packuswb mm2, mm3		psrlq mm0, 8		psrlq mm1, 8		movq [edi], mm2		movq mm4, [esi + eax]		; y 2nd row		movq mm5, [esi + eax + 8]		movq mm2, mm4		movq mm3, mm5		pand mm4, mm6 ; mask1		pand mm5, mm6 ; mask1		pand mm2, mm7 ; mask2		pand mm3, mm7 ; mask2		packuswb mm4, mm5		psrlq mm2, 8		psrlq mm3, 8		movq [edi + ecx], mm4		paddw mm0, mm2			; uv avg 1st & 2nd		paddw mm1, mm3		psrlw mm0, 1		psrlw mm1, 1		packuswb mm0, mm1		movq mm2, mm0		pand mm0, mm6 ; mask1		pand mm2, mm7 ; mask2		packuswb mm0, mm0		psrlq mm2, 8		movd [ebx], mm0		packuswb mm2, mm2		movd [edx], mm2		add	esi, 16		add	edi, 8		add	ebx, 4		add	edx, 4		dec ebp		jnz near .xloop		mov ebp, [esp]		add esi, eax			; += width2		add edi, [esp + 12]		; += y_dif + stride		add ebx, [esp + 8]		; += uv_dif		add edx, [esp + 8]		; += uv_dif		dec ebp		jnz near .yloop		emms		add esp, 16		pop ebp		pop edi		pop esi		pop ecx		pop ebx		ret;===========================================================================;;	void uyvy_to_yv12_mmx(uint8_t * const y_out,;						uint8_t * const u_out,;						uint8_t * const v_out,;						const uint8_t * const src,;						const uint32_t width,;						const uint32_t height,;						const uint32_t stride);;;	width must be multiple of 8;	does not flip;	~30% faster than plain c;;===========================================================================align 16cglobal uyvy_to_yv12_mmxuyvy_to_yv12_mmx		push ebx		push ecx		push esi		push edi					push ebp		; STACK BASE = 20		; some global consants		mov ecx, [esp + 20 + 20]	; width		mov eax, [esp + 20 + 28]	; stride		sub eax, ecx				; eax = stride - width		mov edx, eax		add edx, [esp + 20 + 28]	; edx = y_dif + stride		push edx					; [esp + 12] = y_dif		shr eax, 1		push eax					; [esp + 8] = uv_dif		shr ecx, 3		push ecx					; [esp + 4] = width/8		sub	esp, 4					; [esp + 0] = tmp_height_counter						; STACK_BASE = 36				movq mm6, [mask1]		movq mm7, [mask2]		mov edi, [esp + 36 + 4]		; y_out		mov ebx, [esp + 36 + 8]		; u_out		mov edx, [esp + 36 + 12]	; v_out		mov esi, [esp + 36 + 16]	; src		mov eax, [esp + 36 + 20]		mov ebp, [esp + 36 + 24]		mov ecx, [esp + 36 + 28]	; ecx = stride		shr ebp, 1					; ebp = height /= 2		add eax, eax				; eax = 2 * width.yloop		mov [esp], ebp		mov ebp, [esp + 4]			; width/8.xloop		movq mm2, [esi]				; y 1st row		movq mm3, [esi + 8]		movq mm0, mm2		movq mm1, mm3		pand mm2, mm7 ; mask2		pand mm3, mm7 ; mask2		psrlq mm2, 8		psrlq mm3, 8		pand mm0, mm6 ; mask1		pand mm1, mm6 ; mask1		packuswb mm2, mm3		movq [edi], mm2		movq mm4, [esi + eax]		; y 2nd row		movq mm5, [esi + eax + 8]		movq mm2, mm4		movq mm3, mm5		pand mm4, mm7 ; mask2		pand mm5, mm7 ; mask2		psrlq mm4, 8		psrlq mm5, 8		pand mm2, mm6 ; mask1		pand mm3, mm6 ; mask1		packuswb mm4, mm5		movq [edi + ecx], mm4		paddw mm0, mm2			; uv avg 1st & 2nd		paddw mm1, mm3		psrlw mm0, 1		psrlw mm1, 1		packuswb mm0, mm1		movq mm2, mm0		pand mm0, mm6 ; mask1		pand mm2, mm7 ; mask2		packuswb mm0, mm0		psrlq mm2, 8		movd [ebx], mm0		packuswb mm2, mm2		movd [edx], mm2		add	esi, 16		add	edi, 8		add	ebx, 4		add	edx, 4		dec ebp		jnz near .xloop		mov ebp, [esp]		add esi, eax			; += width2		add edi, [esp + 12]		; += y_dif + stride		add ebx, [esp + 8]		; += uv_dif		add edx, [esp + 8]		; += uv_dif		dec ebp		jnz near .yloop		emms		add esp, 16		pop ebp		pop edi		pop esi		pop ecx		pop ebx		ret