Initial revision

Originally committed as revision 5 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 1061 insertions, 0 deletions

diff --git a/libavcodec/i386/dsputil_mmx.c b/libavcodec/i386/dsputil_mmx.c
new file mode 100644
index 0000000000..701b70283d
--- /dev/null
+++ b/libavcodec/i386/dsputil_mmx.c
@@ -0,0 +1,1061 @@
+/*
+ * MMX optimized DSP utils
+ * 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.
+ *
+ * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
+ */
+
+#include "../dsputil.h"
+
+int pix_abs16x16_mmx(UINT8 *blk1, UINT8 *blk2, int lx, int h);
+int pix_abs16x16_sse(UINT8 *blk1, UINT8 *blk2, int lx, int h);
+int pix_abs16x16_x2_mmx(UINT8 *blk1, UINT8 *blk2, int lx, int h);
+int pix_abs16x16_y2_mmx(UINT8 *blk1, UINT8 *blk2, int lx, int h);
+int pix_abs16x16_xy2_mmx(UINT8 *blk1, UINT8 *blk2, int lx, int h);
+
+/* pixel operations */
+static const unsigned short mm_wone[4] __attribute__ ((aligned(8))) = { 0x1, 0x1, 0x1, 0x1 };
+static const unsigned short mm_wtwo[4] __attribute__ ((aligned(8))) = { 0x2, 0x2, 0x2, 0x2 };
+
+/***********************************/
+/* 3Dnow specific */
+
+#define DEF(x) x ## _3dnow
+/* for Athlons PAVGUSB is prefered */
+#define PAVGB "pavgusb"
+
+#include "dsputil_mmx_avg.h"
+
+#undef DEF
+#undef PAVGB
+
+/***********************************/
+/* MMX2 specific */
+
+#define DEF(x) x ## _sse
+
+/* Introduced only in MMX2 set */
+#define PAVGB "pavgb"
+
+#include "dsputil_mmx_avg.h"
+
+#undef DEF
+#undef PAVGB
+
+/***********************************/
+/* standard MMX */
+
+static void get_pixels_mmx(DCTELEM *block, const UINT8 *pixels, int line_size)
+{
+    DCTELEM *p;
+    const UINT8 *pix;
+    int i;
+
+    /* read the pixels */
+    p = block;
+    pix = pixels;
+    __asm __volatile("pxor %%mm7, %%mm7":::"memory");
+    for(i=0;i<4;i++) {
+	__asm __volatile(
+		"movq	%1, %%mm0\n\t"
+		"movq	%2, %%mm1\n\t"
+		"movq	%%mm0, %%mm2\n\t"
+		"movq	%%mm1, %%mm3\n\t"
+		"punpcklbw %%mm7, %%mm0\n\t"
+		"punpckhbw %%mm7, %%mm2\n\t"
+		"punpcklbw %%mm7, %%mm1\n\t"
+		"punpckhbw %%mm7, %%mm3\n\t"
+		"movq	%%mm0, %0\n\t"
+		"movq	%%mm2, 8%0\n\t"
+		"movq	%%mm1, 16%0\n\t"
+		"movq	%%mm3, 24%0\n\t"
+		:"=m"(*p)
+		:"m"(*pix), "m"(*(pix+line_size))
+		:"memory");
+        pix += line_size*2;
+        p += 16;
+    }
+    emms();
+}
+
+static void put_pixels_clamped_mmx(const DCTELEM *block, UINT8 *pixels, int line_size)
+{
+    const DCTELEM *p;
+    UINT8 *pix;
+    int i;
+
+    /* read the pixels */
+    p = block;
+    pix = pixels;
+    for(i=0;i<2;i++) {
+	__asm __volatile(
+		"movq	%4, %%mm0\n\t"
+		"movq	8%4, %%mm1\n\t"
+		"movq	16%4, %%mm2\n\t"
+		"movq	24%4, %%mm3\n\t"
+		"movq	32%4, %%mm4\n\t"
+		"movq	40%4, %%mm5\n\t"
+		"movq	48%4, %%mm6\n\t"
+		"movq	56%4, %%mm7\n\t"
+		"packuswb %%mm1, %%mm0\n\t"
+		"packuswb %%mm3, %%mm2\n\t"
+		"packuswb %%mm5, %%mm4\n\t"
+		"packuswb %%mm7, %%mm6\n\t"
+		"movq	%%mm0, %0\n\t"
+		"movq	%%mm2, %1\n\t"
+		"movq	%%mm4, %2\n\t"
+		"movq	%%mm6, %3\n\t"
+		:"=m"(*pix), "=m"(*(pix+line_size))
+		,"=m"(*(pix+line_size*2)), "=m"(*(pix+line_size*3))
+		:"m"(*p)
+		:"memory");
+        pix += line_size*4;
+        p += 32;
+    }
+    emms();
+}
+
+static void add_pixels_clamped_mmx(const DCTELEM *block, UINT8 *pixels, int line_size)
+{
+    const DCTELEM *p;
+    UINT8 *pix;
+    int i;
+
+    /* read the pixels */
+    p = block;
+    pix = pixels;
+	__asm __volatile("pxor	%%mm7, %%mm7":::"memory");
+    for(i=0;i<4;i++) {
+	__asm __volatile(
+		"movq	%2, %%mm0\n\t"
+		"movq	8%2, %%mm1\n\t"
+		"movq	16%2, %%mm2\n\t"
+		"movq	24%2, %%mm3\n\t"
+		"movq	%0, %%mm4\n\t"
+		"movq	%1, %%mm6\n\t"
+		"movq	%%mm4, %%mm5\n\t"
+		"punpcklbw %%mm7, %%mm4\n\t"
+		"punpckhbw %%mm7, %%mm5\n\t"
+		"paddsw	%%mm4, %%mm0\n\t"
+		"paddsw	%%mm5, %%mm1\n\t"
+		"movq	%%mm6, %%mm5\n\t"
+		"punpcklbw %%mm7, %%mm6\n\t"
+		"punpckhbw %%mm7, %%mm5\n\t"
+		"paddsw	%%mm6, %%mm2\n\t"
+		"paddsw	%%mm5, %%mm3\n\t"
+		"packuswb %%mm1, %%mm0\n\t"
+		"packuswb %%mm3, %%mm2\n\t"
+		"movq	%%mm0, %0\n\t"
+		"movq	%%mm2, %1\n\t"
+		:"=m"(*pix), "=m"(*(pix+line_size))
+		:"m"(*p)
+		:"memory");
+        pix += line_size*2;
+        p += 16;
+    }
+    emms();
+}
+
+static void put_pixels_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h)
+{
+    int dh, hh;
+    UINT8 *p;
+    const UINT8 *pix;
+    p   = block;
+    pix = pixels;
+    hh=h>>2;
+    dh=h&3;
+    while(hh--) {
+    __asm __volatile(
+	"movq	%4, %%mm0\n\t"
+	"movq	%5, %%mm1\n\t"
+	"movq	%6, %%mm2\n\t"
+	"movq	%7, %%mm3\n\t"
+	"movq	%%mm0, %0\n\t"
+	"movq	%%mm1, %1\n\t"
+	"movq	%%mm2, %2\n\t"
+	"movq	%%mm3, %3\n\t"
+	:"=m"(*p), "=m"(*(p+line_size)), "=m"(*(p+line_size*2)), "=m"(*(p+line_size*3))
+	:"m"(*pix), "m"(*(pix+line_size)), "m"(*(pix+line_size*2)), "m"(*(pix+line_size*3))
+	:"memory");
+        pix = pix + line_size*4;
+        p =   p   + line_size*4;
+    }
+    while(dh--) {
+     __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix)
+	:"memory");
+        pix = pix + line_size;
+        p =   p   + line_size;
+    }
+    emms();
+}
+
+static void put_pixels_x2_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8 *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+	"pxor	%%mm7, %%mm7\n\t"
+	"movq	%0, %%mm4\n\t"
+	::"m"(mm_wone[0]):"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	1%1, %%mm1\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"paddusw %%mm4, %%mm0\n\t"
+	"paddusw %%mm4, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix)
+	:"memory");
+   pix += line_size; p += line_size;
+  } while (--h);
+  emms();
+}
+
+static void put_pixels_y2_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8 *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+	"pxor	%%mm7, %%mm7\n\t"
+	"movq	%0, %%mm4\n\t"
+	::"m"(mm_wone[0]):"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	%2, %%mm1\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"paddusw %%mm4, %%mm0\n\t"
+	"paddusw %%mm4, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix),
+	 "m"(*(pix+line_size))
+	:"memory");
+   pix += line_size;
+   p += line_size;
+  } while (--h);
+  emms();
+}
+
+static void put_pixels_xy2_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8 *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+	"pxor	%%mm7, %%mm7\n\t"
+	"movq	%0, %%mm6\n\t"
+	::"m"(mm_wtwo[0]):"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	%2, %%mm1\n\t"
+	"movq	1%1, %%mm4\n\t"
+	"movq	1%2, %%mm5\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"movq	%%mm4, %%mm1\n\t"
+	"movq	%%mm5, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm4\n\t"
+	"punpcklbw %%mm7, %%mm5\n\t"
+	"punpckhbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm5, %%mm4\n\t"
+	"paddusw %%mm3, %%mm1\n\t"
+	"paddusw %%mm6, %%mm4\n\t"
+	"paddusw %%mm6, %%mm1\n\t"
+	"paddusw %%mm4, %%mm0\n\t"
+	"paddusw %%mm1, %%mm2\n\t"
+	"psrlw	$2, %%mm0\n\t"
+	"psrlw	$2, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix),
+	 "m"(*(pix+line_size))
+	:"memory");
+   pix += line_size;
+   p += line_size;
+  } while(--h);
+  emms();
+}
+
+static void   put_no_rnd_pixels_x2_mmx( UINT8  *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile("pxor %%mm7, %%mm7\n\t":::"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	1%1, %%mm1\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix)
+	:"memory");
+   pix += line_size;
+   p +=   line_size;
+  } while (--h);
+  emms();
+}
+
+static void put_no_rnd_pixels_y2_mmx( UINT8  *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile("pxor %%mm7, %%mm7\n\t":::"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	%2, %%mm1\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix),
+	 "m"(*(pix+line_size))
+	:"memory");
+   pix += line_size;
+   p +=   line_size;
+  } while(--h);
+  emms();
+}
+
+static void   put_no_rnd_pixels_xy2_mmx( UINT8  *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+	"pxor	%%mm7, %%mm7\n\t"
+	"movq	%0, %%mm6\n\t"
+	::"m"(mm_wone[0]):"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	%2, %%mm1\n\t"
+	"movq	1%1, %%mm4\n\t"
+	"movq	1%2, %%mm5\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"movq	%%mm4, %%mm1\n\t"
+	"movq	%%mm5, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm4\n\t"
+	"punpcklbw %%mm7, %%mm5\n\t"
+	"punpckhbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm5, %%mm4\n\t"
+	"paddusw %%mm3, %%mm1\n\t"
+	"paddusw %%mm6, %%mm4\n\t"
+	"paddusw %%mm6, %%mm1\n\t"
+	"paddusw %%mm4, %%mm0\n\t"
+	"paddusw %%mm1, %%mm2\n\t"
+	"psrlw	$2, %%mm0\n\t"
+	"psrlw	$2, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix),
+	 "m"(*(pix+line_size))
+	:"memory");
+   pix += line_size;
+   p +=   line_size;
+  } while(--h);
+  emms();
+}
+
+static void avg_pixels_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+	"pxor	%%mm7, %%mm7\n\t"
+	"movq	%0, %%mm6\n\t"
+	::"m"(mm_wone[0]):"memory");
+  do {
+    __asm __volatile(
+	"movq	%0, %%mm0\n\t"
+	"movq	%1, %%mm1\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"paddusw %%mm6, %%mm0\n\t"
+	"paddusw %%mm6, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix)
+	:"memory");
+   pix += line_size;
+   p +=   line_size;
+  }
+  while (--h);
+  emms();
+}
+
+static void   avg_pixels_x2_mmx( UINT8  *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+	"pxor	%%mm7, %%mm7\n\t"
+	"movq	%0, %%mm6\n\t"
+	::"m"(mm_wone[0]):"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm1\n\t"
+	"movq	%0, %%mm0\n\t"
+	"movq	1%1, %%mm4\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"movq	%%mm4, %%mm5\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm4\n\t"
+	"punpckhbw %%mm7, %%mm5\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"paddusw %%mm4, %%mm1\n\t"
+	"paddusw %%mm5, %%mm3\n\t"
+	"paddusw %%mm6, %%mm1\n\t"
+	"paddusw %%mm6, %%mm3\n\t"
+	"psrlw	$1, %%mm1\n\t"
+	"psrlw	$1, %%mm3\n\t"
+	"paddusw %%mm6, %%mm0\n\t"
+	"paddusw %%mm6, %%mm2\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix)
+	:"memory");
+   pix += line_size;
+   p +=   line_size;
+  } while (--h);
+  emms();
+}
+
+static void   avg_pixels_y2_mmx( UINT8  *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+	"pxor	%%mm7, %%mm7\n\t"
+	"movq	%0, %%mm6\n\t"
+	::"m"(mm_wone[0]):"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm1\n\t"
+	"movq	%0, %%mm0\n\t"
+	"movq	%2, %%mm4\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"movq	%%mm4, %%mm5\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm4\n\t"
+	"punpckhbw %%mm7, %%mm5\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"paddusw %%mm4, %%mm1\n\t"
+	"paddusw %%mm5, %%mm3\n\t"
+	"paddusw %%mm6, %%mm1\n\t"
+	"paddusw %%mm6, %%mm3\n\t"
+	"psrlw	$1, %%mm1\n\t"
+	"psrlw	$1, %%mm3\n\t"
+	"paddusw %%mm6, %%mm0\n\t"
+	"paddusw %%mm6, %%mm2\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix), "m"(*(pix+line_size))
+	:"memory");
+   pix += line_size;
+   p +=   line_size ;
+  } while(--h);
+  emms();
+}
+
+static void   avg_pixels_xy2_mmx( UINT8  *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+	"pxor	%%mm7, %%mm7\n\t"
+	"movq	%0, %%mm6\n\t"
+	::"m"(mm_wtwo[0]):"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	%2, %%mm1\n\t"
+	"movq	1%1, %%mm4\n\t"
+	"movq	1%2, %%mm5\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"movq	%%mm4, %%mm1\n\t"
+	"movq	%%mm5, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm4\n\t"
+	"punpcklbw %%mm7, %%mm5\n\t"
+	"punpckhbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm5, %%mm4\n\t"
+	"paddusw %%mm3, %%mm1\n\t"
+	"paddusw %%mm6, %%mm4\n\t"
+	"paddusw %%mm6, %%mm1\n\t"
+	"paddusw %%mm4, %%mm0\n\t"
+	"paddusw %%mm1, %%mm2\n\t"
+	"movq	%3, %%mm5\n\t"
+	"psrlw	$2, %%mm0\n\t"
+	"movq	%0, %%mm1\n\t"
+	"psrlw	$2, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"paddusw %%mm5, %%mm0\n\t"
+	"paddusw %%mm5, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix),
+	 "m"(*(pix+line_size)), "m"(mm_wone[0])
+	:"memory");
+   pix += line_size;
+   p +=   line_size ;
+  } while(--h);
+  emms();
+}
+
+static void avg_no_rnd_pixels_mmx( UINT8  *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile("pxor %%mm7, %%mm7\n\t":::"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	%0, %%mm1\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix)
+	:"memory");
+   pix += line_size;
+   p +=   line_size ;
+  } while (--h);
+  emms();
+}
+
+static void   avg_no_rnd_pixels_x2_mmx( UINT8  *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+      "pxor	%%mm7, %%mm7\n\t":::"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	1%1, %%mm1\n\t"
+	"movq	%0, %%mm4\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"movq	%%mm4, %%mm5\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm4\n\t"
+	"punpckhbw %%mm7, %%mm5\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"paddusw %%mm4, %%mm0\n\t"
+	"paddusw %%mm5, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix)
+	:"memory");
+   pix += line_size;
+   p +=   line_size;
+ } while (--h);
+ emms();
+}
+
+static void   avg_no_rnd_pixels_y2_mmx( UINT8  *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+      "pxor	%%mm7, %%mm7\n\t":::"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	%2, %%mm1\n\t"
+	"movq	%0, %%mm4\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"movq	%%mm4, %%mm5\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm4\n\t"
+	"punpckhbw %%mm7, %%mm5\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"paddusw %%mm4, %%mm0\n\t"
+	"paddusw %%mm5, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix), "m"(*(pix+line_size))
+	:"memory");
+   pix += line_size;
+   p +=   line_size ;
+  } while(--h);
+  emms();
+}
+
+static void   avg_no_rnd_pixels_xy2_mmx( UINT8  *block, const UINT8 *pixels, int line_size, int h)
+{
+  UINT8  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+	"pxor	%%mm7, %%mm7\n\t"
+	"movq	%0, %%mm6\n\t"
+	::"m"(mm_wone[0]):"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	%2, %%mm1\n\t"
+	"movq	1%1, %%mm4\n\t"
+	"movq	1%2, %%mm5\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"movq	%%mm4, %%mm1\n\t"
+	"movq	%%mm5, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm4\n\t"
+	"punpcklbw %%mm7, %%mm5\n\t"
+	"punpckhbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm5, %%mm4\n\t"
+	"paddusw %%mm3, %%mm1\n\t"
+	"paddusw %%mm6, %%mm4\n\t"
+	"paddusw %%mm6, %%mm1\n\t"
+	"paddusw %%mm4, %%mm0\n\t"
+	"paddusw %%mm1, %%mm2\n\t"
+	"movq	%0, %%mm1\n\t"
+	"psrlw	$2, %%mm0\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"psrlw	$2, %%mm2\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"psrlw	$1, %%mm0\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"packuswb  %%mm2, %%mm0\n\t"
+	"movq	%%mm0, %0\n\t"
+	:"=m"(*p)
+	:"m"(*pix),
+	 "m"(*(pix+line_size))
+	:"memory");
+   pix += line_size;
+   p += line_size;
+  } while(--h);
+  emms();
+}
+
+static void sub_pixels_mmx( DCTELEM  *block, const UINT8 *pixels, int line_size, int h)
+{
+  DCTELEM  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile("pxor %%mm7, %%mm7":::"memory");
+  do {
+    __asm __volatile(
+	"movq	%0, %%mm0\n\t"
+	"movq	%1, %%mm2\n\t"
+	"movq	8%0, %%mm1\n\t"
+	"movq	%%mm2, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"psubsw %%mm2, %%mm0\n\t"
+	"psubsw %%mm3, %%mm1\n\t"
+	"movq	%%mm0, %0\n\t"
+	"movq	%%mm1, 8%0\n\t"
+	:"=m"(*p)
+	:"m"(*pix)
+	:"memory");
+   pix += line_size;
+   p +=   8;
+  } while (--h);
+  emms();
+}
+
+static void sub_pixels_x2_mmx( DCTELEM  *block, const UINT8 *pixels, int line_size, int h)
+{
+  DCTELEM  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+      "pxor	%%mm7, %%mm7\n\t"
+      "movq	%0, %%mm6"
+      ::"m"(mm_wone[0]):"memory");
+  do {
+    __asm __volatile(
+	"movq	%0, %%mm0\n\t"
+	"movq	%1, %%mm2\n\t"
+	"movq	8%0, %%mm1\n\t"
+	"movq	1%1, %%mm4\n\t"
+	"movq	%%mm2, %%mm3\n\t"
+	"movq	%%mm4, %%mm5\n\t"
+	"punpcklbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm4\n\t"
+	"punpckhbw %%mm7, %%mm5\n\t"
+	"paddusw %%mm4, %%mm2\n\t"
+	"paddusw %%mm5, %%mm3\n\t"
+	"paddusw %%mm6, %%mm2\n\t"
+	"paddusw %%mm6, %%mm3\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"psrlw	$1, %%mm3\n\t"
+	"psubsw %%mm2, %%mm0\n\t"
+	"psubsw %%mm3, %%mm1\n\t"
+	"movq	%%mm0, %0\n\t"
+	"movq	%%mm1, 8%0\n\t"
+	:"=m"(*p)
+	:"m"(*pix)
+	:"memory");
+   pix += line_size;
+   p +=   8;
+ } while (--h);
+ emms();
+}
+
+static void sub_pixels_y2_mmx( DCTELEM  *block, const UINT8 *pixels, int line_size, int h)
+{
+  DCTELEM  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+      "pxor	%%mm7, %%mm7\n\t"
+      "movq	%0, %%mm6"
+      ::"m"(mm_wone[0]):"memory");
+  do {
+    __asm __volatile(
+	"movq	%0, %%mm0\n\t"
+	"movq	%1, %%mm2\n\t"
+	"movq	8%0, %%mm1\n\t"
+	"movq	%2, %%mm4\n\t"
+	"movq	%%mm2, %%mm3\n\t"
+	"movq	%%mm4, %%mm5\n\t"
+	"punpcklbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm4\n\t"
+	"punpckhbw %%mm7, %%mm5\n\t"
+	"paddusw %%mm4, %%mm2\n\t"
+	"paddusw %%mm5, %%mm3\n\t"
+	"paddusw %%mm6, %%mm2\n\t"
+	"paddusw %%mm6, %%mm3\n\t"
+	"psrlw	$1, %%mm2\n\t"
+	"psrlw	$1, %%mm3\n\t"
+	"psubsw %%mm2, %%mm0\n\t"
+	"psubsw %%mm3, %%mm1\n\t"
+	"movq	%%mm0, %0\n\t"
+	"movq	%%mm1, 8%0\n\t"
+	:"=m"(*p)
+	:"m"(*pix), "m"(*(pix+line_size))
+	:"memory");
+   pix += line_size;
+   p +=   8;
+ } while (--h);
+ emms();
+}
+
+static void   sub_pixels_xy2_mmx( DCTELEM  *block, const UINT8 *pixels, int line_size, int h)
+{
+  DCTELEM  *p;
+  const UINT8 *pix;
+  p = block;
+  pix = pixels;
+  __asm __volatile(
+	"pxor	%%mm7, %%mm7\n\t"
+	"movq	%0, %%mm6\n\t"
+	::"m"(mm_wtwo[0]):"memory");
+  do {
+    __asm __volatile(
+	"movq	%1, %%mm0\n\t"
+	"movq	%2, %%mm1\n\t"
+	"movq	1%1, %%mm4\n\t"
+	"movq	1%2, %%mm5\n\t"
+	"movq	%%mm0, %%mm2\n\t"
+	"movq	%%mm1, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm0\n\t"
+	"punpcklbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm2\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm1, %%mm0\n\t"
+	"paddusw %%mm3, %%mm2\n\t"
+	"movq	%%mm4, %%mm1\n\t"
+	"movq	%%mm5, %%mm3\n\t"
+	"punpcklbw %%mm7, %%mm4\n\t"
+	"punpcklbw %%mm7, %%mm5\n\t"
+	"punpckhbw %%mm7, %%mm1\n\t"
+	"punpckhbw %%mm7, %%mm3\n\t"
+	"paddusw %%mm5, %%mm4\n\t"
+	"paddusw %%mm3, %%mm1\n\t"
+	"paddusw %%mm6, %%mm4\n\t"
+	"paddusw %%mm6, %%mm1\n\t"
+	"paddusw %%mm4, %%mm0\n\t"
+	"paddusw %%mm1, %%mm2\n\t"
+	"movq	%0, %%mm1\n\t"
+	"movq	8%0, %%mm3\n\t"
+	"psrlw	$2, %%mm0\n\t"
+	"psrlw	$2, %%mm2\n\t"
+	"psubsw %%mm0, %%mm1\n\t"
+	"psubsw %%mm2, %%mm3\n\t"
+	"movq	%%mm1, %0\n\t"
+	"movq	%%mm3, 8%0\n\t"
+	:"=m"(*p)
+	:"m"(*pix),
+	 "m"(*(pix+line_size))
+	:"memory");
+   pix += line_size;
+   p +=   8 ;
+  } while(--h);
+  emms();
+}
+
+void dsputil_init_mmx(void)
+{
+    mm_flags = mm_support();
+#if 0
+    printf("CPU flags:");
+    if (mm_flags & MM_MMX)
+        printf(" mmx");
+    if (mm_flags & MM_MMXEXT)
+        printf(" mmxext");
+    if (mm_flags & MM_3DNOW)
+        printf(" 3dnow");
+    if (mm_flags & MM_SSE)
+        printf(" sse");
+    if (mm_flags & MM_SSE2)
+        printf(" sse2");
+    printf("\n");
+#endif
+
+    if (mm_flags & MM_MMX) {
+        get_pixels = get_pixels_mmx;
+        put_pixels_clamped = put_pixels_clamped_mmx;
+        add_pixels_clamped = add_pixels_clamped_mmx;
+        
+        pix_abs16x16 = pix_abs16x16_mmx;
+        pix_abs16x16_x2 = pix_abs16x16_x2_mmx;
+        pix_abs16x16_y2 = pix_abs16x16_y2_mmx;
+        pix_abs16x16_xy2 = pix_abs16x16_xy2_mmx;
+        av_fdct = fdct_mmx;
+
+        put_pixels_tab[0] = put_pixels_mmx;
+        put_pixels_tab[1] = put_pixels_x2_mmx;
+        put_pixels_tab[2] = put_pixels_y2_mmx;
+        put_pixels_tab[3] = put_pixels_xy2_mmx;
+
+        put_no_rnd_pixels_tab[0] = put_pixels_mmx;
+        put_no_rnd_pixels_tab[1] = put_no_rnd_pixels_x2_mmx;
+        put_no_rnd_pixels_tab[2] = put_no_rnd_pixels_y2_mmx;
+        put_no_rnd_pixels_tab[3] = put_no_rnd_pixels_xy2_mmx;
+        
+        avg_pixels_tab[0] = avg_pixels_mmx;
+        avg_pixels_tab[1] = avg_pixels_x2_mmx;
+        avg_pixels_tab[2] = avg_pixels_y2_mmx;
+        avg_pixels_tab[3] = avg_pixels_xy2_mmx;
+
+        avg_no_rnd_pixels_tab[0] = avg_no_rnd_pixels_mmx;
+        avg_no_rnd_pixels_tab[1] = avg_no_rnd_pixels_x2_mmx;
+        avg_no_rnd_pixels_tab[2] = avg_no_rnd_pixels_y2_mmx;
+        avg_no_rnd_pixels_tab[3] = avg_no_rnd_pixels_xy2_mmx;
+        
+        sub_pixels_tab[0] = sub_pixels_mmx;
+        sub_pixels_tab[1] = sub_pixels_x2_mmx;
+        sub_pixels_tab[2] = sub_pixels_y2_mmx;
+        sub_pixels_tab[3] = sub_pixels_xy2_mmx;
+
+        if (mm_flags & MM_MMXEXT) {
+            pix_abs16x16 = pix_abs16x16_sse;
+        }
+
+        if (mm_flags & MM_SSE) {
+            put_pixels_tab[1] = put_pixels_x2_sse;
+            put_pixels_tab[2] = put_pixels_y2_sse;
+            
+            avg_pixels_tab[0] = avg_pixels_sse;
+            avg_pixels_tab[1] = avg_pixels_x2_sse;
+            avg_pixels_tab[2] = avg_pixels_y2_sse;
+            avg_pixels_tab[3] = avg_pixels_xy2_sse;
+
+            sub_pixels_tab[1] = sub_pixels_x2_sse;
+            sub_pixels_tab[2] = sub_pixels_y2_sse;
+        } else if (mm_flags & MM_3DNOW) {
+            put_pixels_tab[1] = put_pixels_x2_3dnow;
+            put_pixels_tab[2] = put_pixels_y2_3dnow;
+            
+            avg_pixels_tab[0] = avg_pixels_3dnow;
+            avg_pixels_tab[1] = avg_pixels_x2_3dnow;
+            avg_pixels_tab[2] = avg_pixels_y2_3dnow;
+            avg_pixels_tab[3] = avg_pixels_xy2_3dnow;
+
+            sub_pixels_tab[1] = sub_pixels_x2_3dnow;
+            sub_pixels_tab[2] = sub_pixels_y2_3dnow;
+        }
+    }
+}