;/**************************************************************************; *; *	XVID MPEG-4 VIDEO CODEC; *	mmx yuyv/uyvy to yuv planar; *; *	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.; *; *	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.; *; *	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.; *; *************************************************************************/;/**************************************************************************; *; *	History:; *; *	30.11.2001	initial version; (c)2001 peter ross <pross@cs.rmit.edu.au>; *; *************************************************************************/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