[Mplayer-cvslog] CVS: main/libavcodec/i386 mpegvideo.c,NONE,1.1 dsputil_mmx.c,1.1,1.2

[Nick Kurshev]

Update of /cvsroot/mplayer/main/libavcodec/i386
In directory mplayer:/var/tmp.root/cvs-serv25971/main/libavcodec/i386

Modified Files:
	dsputil_mmx.c 
Added Files:
	mpegvideo.c 
Log Message:
Minor x86 & MMX optimization

--- NEW FILE ---
/*
 * The simplest mpeg encoder (well, it was the simplest!)
 * Copyright (c) 2000,2001 Gerard Lantau.
 *
 * 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.
 *
 * Optimized for ia32 cpus by Nick Kurshev <nickols_k at mail.ru>
 */

void MPV_frame_start(MpegEncContext *s)
{
    if (s->pict_type == B_TYPE) {
	__asm __volatile(
	    "movl	(%1), %%eax\n\t"
	    "movl	4(%1), %%edx\n\t"
	    "movl	8(%1), %%ecx\n\t"
	    "movl	%%eax, (%0)\n\t"
	    "movl	%%edx, 4(%0)\n\t"
	    "movl	%%ecx, 8(%0)\n\t"
	    :
	    :"r"(s->current_picture), "r"(s->aux_picture)
	    :"eax","edx","ecx","memory");
    } else {
            /* swap next and last */
	__asm __volatile(
	    "movl	(%1), %%eax\n\t"
	    "movl	4(%1), %%edx\n\t"
	    "movl	8(%1), %%ecx\n\t"
	    "xchgl	(%0), %%eax\n\t"
	    "xchgl	4(%0), %%edx\n\t"
	    "xchgl	8(%0), %%ecx\n\t"
	    "movl	%%eax, (%1)\n\t"
	    "movl	%%edx, 4(%1)\n\t"
	    "movl	%%ecx, 8(%1)\n\t"
	    "movl	%%eax, (%2)\n\t"
	    "movl	%%edx, 4(%2)\n\t"
	    "movl	%%ecx, 8(%2)\n\t"
	    :
	    :"r"(s->last_picture), "r"(s->next_picture), "r"(s->current_picture)
	    :"eax","edx","ecx","memory");
    }
}

Index: dsputil_mmx.c
===================================================================
RCS file: /cvsroot/mplayer/main/libavcodec/i386/dsputil_mmx.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- dsputil_mmx.c	10 Jul 2001 21:34:14 -0000	1.1
+++ dsputil_mmx.c	16 Jul 2001 09:16:20 -0000	1.2
@@ -103,3 +103,22 @@
     }
     emms();
 }
+
+static void put_pixels_long(UINT8 *block, const UINT8 *pixels, int line_size, int h)
+{
+    UINT32 *p;
+    const UINT32 *pix;
+    p   = (UINT32*)block;
+    pix = (UINT32*)pixels;
+    do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(p[0])
+	:"m"(pix[0])
+	:"memory");
+        pix = (UINT32*) ((char*)pix + line_size);
+        p =   (UINT32*) ((char*)p   + line_size);
+    } while (--h);
+    emms();
+}