Rename libavcodec/i386/ --> libavcodec/x86/.

It contains optimizations that are not specific to i386 and
libavutil uses this naming scheme already.

Originally committed as revision 16270 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 580 insertions, 0 deletions

diff --git a/libavcodec/x86/fdct_mmx.c b/libavcodec/x86/fdct_mmx.c
new file mode 100644
index 0000000000..c87c1a78f3
--- /dev/null
+++ b/libavcodec/x86/fdct_mmx.c
@@ -0,0 +1,580 @@
+/*
+ * MMX optimized forward DCT
+ * The gcc porting is Copyright (c) 2001 Fabrice Bellard.
+ * cleanup/optimizations are Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
+ * SSE2 optimization is Copyright (c) 2004 Denes Balatoni.
+ *
+ * from  fdctam32.c - AP922 MMX(3D-Now) forward-DCT
+ *
+ *  Intel Application Note AP-922 - fast, precise implementation of DCT
+ *        http://developer.intel.com/vtune/cbts/appnotes.htm
+ *
+ * Also of inspiration:
+ * a page about fdct at http://www.geocities.com/ssavekar/dct.htm
+ * Skal's fdct at http://skal.planet-d.net/coding/dct.html
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/common.h"
+#include "libavcodec/dsputil.h"
+
+#define ATTR_ALIGN(align) __attribute__ ((__aligned__ (align)))
+
+//////////////////////////////////////////////////////////////////////
+//
+// constants for the forward DCT
+// -----------------------------
+//
+// Be sure to check that your compiler is aligning all constants to QWORD
+// (8-byte) memory boundaries!  Otherwise the unaligned memory access will
+// severely stall MMX execution.
+//
+//////////////////////////////////////////////////////////////////////
+
+#define BITS_FRW_ACC   3 //; 2 or 3 for accuracy
+#define SHIFT_FRW_COL  BITS_FRW_ACC
+#define SHIFT_FRW_ROW  (BITS_FRW_ACC + 17 - 3)
+#define RND_FRW_ROW    (1 << (SHIFT_FRW_ROW-1))
+//#define RND_FRW_COL    (1 << (SHIFT_FRW_COL-1))
+
+#define X8(x) x,x,x,x,x,x,x,x
+
+//concatenated table, for forward DCT transformation
+static const int16_t fdct_tg_all_16[24] ATTR_ALIGN(16) = {
+    X8(13036),  // tg * (2<<16) + 0.5
+    X8(27146),  // tg * (2<<16) + 0.5
+    X8(-21746)  // tg * (2<<16) + 0.5
+};
+
+static const int16_t ocos_4_16[8] ATTR_ALIGN(16) = {
+    X8(23170)   //cos * (2<<15) + 0.5
+};
+
+static const int16_t fdct_one_corr[8] ATTR_ALIGN(16) = { X8(1) };
+
+static const int32_t fdct_r_row[2] ATTR_ALIGN(8) = {RND_FRW_ROW, RND_FRW_ROW };
+
+static struct
+{
+ const int32_t fdct_r_row_sse2[4] ATTR_ALIGN(16);
+} fdct_r_row_sse2 ATTR_ALIGN(16)=
+{{
+ RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW
+}};
+//static const long fdct_r_row_sse2[4] ATTR_ALIGN(16) = {RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW};
+
+static const int16_t tab_frw_01234567[] ATTR_ALIGN(8) = {  // forward_dct coeff table
+  16384,   16384,   22725,   19266,
+  16384,   16384,   12873,    4520,
+  21407,    8867,   19266,   -4520,
+  -8867,  -21407,  -22725,  -12873,
+  16384,  -16384,   12873,  -22725,
+ -16384,   16384,    4520,   19266,
+   8867,  -21407,    4520,  -12873,
+  21407,   -8867,   19266,  -22725,
+
+  22725,   22725,   31521,   26722,
+  22725,   22725,   17855,    6270,
+  29692,   12299,   26722,   -6270,
+ -12299,  -29692,  -31521,  -17855,
+  22725,  -22725,   17855,  -31521,
+ -22725,   22725,    6270,   26722,
+  12299,  -29692,    6270,  -17855,
+  29692,  -12299,   26722,  -31521,
+
+  21407,   21407,   29692,   25172,
+  21407,   21407,   16819,    5906,
+  27969,   11585,   25172,   -5906,
+ -11585,  -27969,  -29692,  -16819,
+  21407,  -21407,   16819,  -29692,
+ -21407,   21407,    5906,   25172,
+  11585,  -27969,    5906,  -16819,
+  27969,  -11585,   25172,  -29692,
+
+  19266,   19266,   26722,   22654,
+  19266,   19266,   15137,    5315,
+  25172,   10426,   22654,   -5315,
+ -10426,  -25172,  -26722,  -15137,
+  19266,  -19266,   15137,  -26722,
+ -19266,   19266,    5315,   22654,
+  10426,  -25172,    5315,  -15137,
+  25172,  -10426,   22654,  -26722,
+
+  16384,   16384,   22725,   19266,
+  16384,   16384,   12873,    4520,
+  21407,    8867,   19266,   -4520,
+  -8867,  -21407,  -22725,  -12873,
+  16384,  -16384,   12873,  -22725,
+ -16384,   16384,    4520,   19266,
+   8867,  -21407,    4520,  -12873,
+  21407,   -8867,   19266,  -22725,
+
+  19266,   19266,   26722,   22654,
+  19266,   19266,   15137,    5315,
+  25172,   10426,   22654,   -5315,
+ -10426,  -25172,  -26722,  -15137,
+  19266,  -19266,   15137,  -26722,
+ -19266,   19266,    5315,   22654,
+  10426,  -25172,    5315,  -15137,
+  25172,  -10426,   22654,  -26722,
+
+  21407,   21407,   29692,   25172,
+  21407,   21407,   16819,    5906,
+  27969,   11585,   25172,   -5906,
+ -11585,  -27969,  -29692,  -16819,
+  21407,  -21407,   16819,  -29692,
+ -21407,   21407,    5906,   25172,
+  11585,  -27969,    5906,  -16819,
+  27969,  -11585,   25172,  -29692,
+
+  22725,   22725,   31521,   26722,
+  22725,   22725,   17855,    6270,
+  29692,   12299,   26722,   -6270,
+ -12299,  -29692,  -31521,  -17855,
+  22725,  -22725,   17855,  -31521,
+ -22725,   22725,    6270,   26722,
+  12299,  -29692,    6270,  -17855,
+  29692,  -12299,   26722,  -31521,
+};
+
+static struct
+{
+ const int16_t tab_frw_01234567_sse2[256] ATTR_ALIGN(16);
+} tab_frw_01234567_sse2 ATTR_ALIGN(16) =
+{{
+//static const int16_t tab_frw_01234567_sse2[] ATTR_ALIGN(16) = {  // forward_dct coeff table
+#define TABLE_SSE2 C4,  C4,  C1,  C3, -C6, -C2, -C1, -C5, \
+                   C4,  C4,  C5,  C7,  C2,  C6,  C3, -C7, \
+                  -C4,  C4,  C7,  C3,  C6, -C2,  C7, -C5, \
+                   C4, -C4,  C5, -C1,  C2, -C6,  C3, -C1,
+// c1..c7 * cos(pi/4) * 2^15
+#define C1 22725
+#define C2 21407
+#define C3 19266
+#define C4 16384
+#define C5 12873
+#define C6 8867
+#define C7 4520
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 31521
+#define C2 29692
+#define C3 26722
+#define C4 22725
+#define C5 17855
+#define C6 12299
+#define C7 6270
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 29692
+#define C2 27969
+#define C3 25172
+#define C4 21407
+#define C5 16819
+#define C6 11585
+#define C7 5906
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 26722
+#define C2 25172
+#define C3 22654
+#define C4 19266
+#define C5 15137
+#define C6 10426
+#define C7 5315
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 22725
+#define C2 21407
+#define C3 19266
+#define C4 16384
+#define C5 12873
+#define C6 8867
+#define C7 4520
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 26722
+#define C2 25172
+#define C3 22654
+#define C4 19266
+#define C5 15137
+#define C6 10426
+#define C7 5315
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 29692
+#define C2 27969
+#define C3 25172
+#define C4 21407
+#define C5 16819
+#define C6 11585
+#define C7 5906
+TABLE_SSE2
+
+#undef C1
+#undef C2
+#undef C3
+#undef C4
+#undef C5
+#undef C6
+#undef C7
+#define C1 31521
+#define C2 29692
+#define C3 26722
+#define C4 22725
+#define C5 17855
+#define C6 12299
+#define C7 6270
+TABLE_SSE2
+}};
+
+#define S(s) AV_TOSTRING(s) //AV_STRINGIFY is too long
+
+#define FDCT_COL(cpu, mm, mov)\
+static av_always_inline void fdct_col_##cpu(const int16_t *in, int16_t *out, int offset)\
+{\
+    __asm__ volatile (\
+        #mov"      16(%0),  %%"#mm"0 \n\t" \
+        #mov"      96(%0),  %%"#mm"1 \n\t" \
+        #mov"    %%"#mm"0,  %%"#mm"2 \n\t" \
+        #mov"      32(%0),  %%"#mm"3 \n\t" \
+        "paddsw  %%"#mm"1,  %%"#mm"0 \n\t" \
+        #mov"      80(%0),  %%"#mm"4 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"0 \n\t" \
+        #mov"        (%0),  %%"#mm"5 \n\t" \
+        "paddsw  %%"#mm"3,  %%"#mm"4 \n\t" \
+        "paddsw   112(%0),  %%"#mm"5 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"4 \n\t" \
+        #mov"    %%"#mm"0,  %%"#mm"6 \n\t" \
+        "psubsw  %%"#mm"1,  %%"#mm"2 \n\t" \
+        #mov"      16(%1),  %%"#mm"1 \n\t" \
+        "psubsw  %%"#mm"4,  %%"#mm"0 \n\t" \
+        #mov"      48(%0),  %%"#mm"7 \n\t" \
+        "pmulhw  %%"#mm"0,  %%"#mm"1 \n\t" \
+        "paddsw    64(%0),  %%"#mm"7 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"5 \n\t" \
+        "paddsw  %%"#mm"4,  %%"#mm"6 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"7 \n\t" \
+        #mov"    %%"#mm"5,  %%"#mm"4 \n\t" \
+        "psubsw  %%"#mm"7,  %%"#mm"5 \n\t" \
+        "paddsw  %%"#mm"5,  %%"#mm"1 \n\t" \
+        "paddsw  %%"#mm"7,  %%"#mm"4 \n\t" \
+        "por         (%2),  %%"#mm"1 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)"+1, %%"#mm"2 \n\t" \
+        "pmulhw    16(%1),  %%"#mm"5 \n\t" \
+        #mov"    %%"#mm"4,  %%"#mm"7 \n\t" \
+        "psubsw    80(%0),  %%"#mm"3 \n\t" \
+        "psubsw  %%"#mm"6,  %%"#mm"4 \n\t" \
+        #mov"    %%"#mm"1,    32(%3) \n\t" \
+        "paddsw  %%"#mm"6,  %%"#mm"7 \n\t" \
+        #mov"      48(%0),  %%"#mm"1 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)"+1, %%"#mm"3 \n\t" \
+        "psubsw    64(%0),  %%"#mm"1 \n\t" \
+        #mov"    %%"#mm"2,  %%"#mm"6 \n\t" \
+        #mov"    %%"#mm"4,    64(%3) \n\t" \
+        "paddsw  %%"#mm"3,  %%"#mm"2 \n\t" \
+        "pmulhw      (%4),  %%"#mm"2 \n\t" \
+        "psubsw  %%"#mm"3,  %%"#mm"6 \n\t" \
+        "pmulhw      (%4),  %%"#mm"6 \n\t" \
+        "psubsw  %%"#mm"0,  %%"#mm"5 \n\t" \
+        "por         (%2),  %%"#mm"5 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"1 \n\t" \
+        "por         (%2),  %%"#mm"2 \n\t" \
+        #mov"    %%"#mm"1,  %%"#mm"4 \n\t" \
+        #mov"        (%0),  %%"#mm"3 \n\t" \
+        "paddsw  %%"#mm"6,  %%"#mm"1 \n\t" \
+        "psubsw   112(%0),  %%"#mm"3 \n\t" \
+        "psubsw  %%"#mm"6,  %%"#mm"4 \n\t" \
+        #mov"        (%1),  %%"#mm"0 \n\t" \
+        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"3 \n\t" \
+        #mov"      32(%1),  %%"#mm"6 \n\t" \
+        "pmulhw  %%"#mm"1,  %%"#mm"0 \n\t" \
+        #mov"    %%"#mm"7,      (%3) \n\t" \
+        "pmulhw  %%"#mm"4,  %%"#mm"6 \n\t" \
+        #mov"    %%"#mm"5,    96(%3) \n\t" \
+        #mov"    %%"#mm"3,  %%"#mm"7 \n\t" \
+        #mov"      32(%1),  %%"#mm"5 \n\t" \
+        "psubsw  %%"#mm"2,  %%"#mm"7 \n\t" \
+        "paddsw  %%"#mm"2,  %%"#mm"3 \n\t" \
+        "pmulhw  %%"#mm"7,  %%"#mm"5 \n\t" \
+        "paddsw  %%"#mm"3,  %%"#mm"0 \n\t" \
+        "paddsw  %%"#mm"4,  %%"#mm"6 \n\t" \
+        "pmulhw      (%1),  %%"#mm"3 \n\t" \
+        "por         (%2),  %%"#mm"0 \n\t" \
+        "paddsw  %%"#mm"7,  %%"#mm"5 \n\t" \
+        "psubsw  %%"#mm"6,  %%"#mm"7 \n\t" \
+        #mov"    %%"#mm"0,    16(%3) \n\t" \
+        "paddsw  %%"#mm"4,  %%"#mm"5 \n\t" \
+        #mov"    %%"#mm"7,    48(%3) \n\t" \
+        "psubsw  %%"#mm"1,  %%"#mm"3 \n\t" \
+        #mov"    %%"#mm"5,    80(%3) \n\t" \
+        #mov"    %%"#mm"3,   112(%3) \n\t" \
+        : \
+        : "r" (in  + offset), "r" (fdct_tg_all_16), "r" (fdct_one_corr), \
+          "r" (out + offset), "r" (ocos_4_16)); \
+}
+
+FDCT_COL(mmx, mm, movq)
+FDCT_COL(sse2, xmm, movdqa)
+
+static av_always_inline void fdct_row_sse2(const int16_t *in, int16_t *out)
+{
+    __asm__ volatile(
+#define FDCT_ROW_SSE2_H1(i,t)                    \
+        "movq      " #i "(%0), %%xmm2      \n\t" \
+        "movq      " #i "+8(%0), %%xmm0    \n\t" \
+        "movdqa    " #t "+32(%1), %%xmm3   \n\t" \
+        "movdqa    " #t "+48(%1), %%xmm7   \n\t" \
+        "movdqa    " #t "(%1), %%xmm4      \n\t" \
+        "movdqa    " #t "+16(%1), %%xmm5   \n\t"
+
+#define FDCT_ROW_SSE2_H2(i,t)                    \
+        "movq      " #i "(%0), %%xmm2      \n\t" \
+        "movq      " #i "+8(%0), %%xmm0    \n\t" \
+        "movdqa    " #t "+32(%1), %%xmm3   \n\t" \
+        "movdqa    " #t "+48(%1), %%xmm7   \n\t"
+
+#define FDCT_ROW_SSE2(i)                      \
+        "movq      %%xmm2, %%xmm1       \n\t" \
+        "pshuflw   $27, %%xmm0, %%xmm0  \n\t" \
+        "paddsw    %%xmm0, %%xmm1       \n\t" \
+        "psubsw    %%xmm0, %%xmm2       \n\t" \
+        "punpckldq %%xmm2, %%xmm1       \n\t" \
+        "pshufd    $78, %%xmm1, %%xmm2  \n\t" \
+        "pmaddwd   %%xmm2, %%xmm3       \n\t" \
+        "pmaddwd   %%xmm1, %%xmm7       \n\t" \
+        "pmaddwd   %%xmm5, %%xmm2       \n\t" \
+        "pmaddwd   %%xmm4, %%xmm1       \n\t" \
+        "paddd     %%xmm7, %%xmm3       \n\t" \
+        "paddd     %%xmm2, %%xmm1       \n\t" \
+        "paddd     %%xmm6, %%xmm3       \n\t" \
+        "paddd     %%xmm6, %%xmm1       \n\t" \
+        "psrad     %3, %%xmm3           \n\t" \
+        "psrad     %3, %%xmm1           \n\t" \
+        "packssdw  %%xmm3, %%xmm1       \n\t" \
+        "movdqa    %%xmm1, " #i "(%4)   \n\t"
+
+        "movdqa    (%2), %%xmm6         \n\t"
+        FDCT_ROW_SSE2_H1(0,0)
+        FDCT_ROW_SSE2(0)
+        FDCT_ROW_SSE2_H2(64,0)
+        FDCT_ROW_SSE2(64)
+
+        FDCT_ROW_SSE2_H1(16,64)
+        FDCT_ROW_SSE2(16)
+        FDCT_ROW_SSE2_H2(112,64)
+        FDCT_ROW_SSE2(112)
+
+        FDCT_ROW_SSE2_H1(32,128)
+        FDCT_ROW_SSE2(32)
+        FDCT_ROW_SSE2_H2(96,128)
+        FDCT_ROW_SSE2(96)
+
+        FDCT_ROW_SSE2_H1(48,192)
+        FDCT_ROW_SSE2(48)
+        FDCT_ROW_SSE2_H2(80,192)
+        FDCT_ROW_SSE2(80)
+        :
+        : "r" (in), "r" (tab_frw_01234567_sse2.tab_frw_01234567_sse2), "r" (fdct_r_row_sse2.fdct_r_row_sse2), "i" (SHIFT_FRW_ROW), "r" (out)
+    );
+}
+
+static av_always_inline void fdct_row_mmx2(const int16_t *in, int16_t *out, const int16_t *table)
+{
+    __asm__ volatile (
+        "pshufw    $0x1B, 8(%0), %%mm5 \n\t"
+        "movq       (%0), %%mm0 \n\t"
+        "movq      %%mm0, %%mm1 \n\t"
+        "paddsw    %%mm5, %%mm0 \n\t"
+        "psubsw    %%mm5, %%mm1 \n\t"
+        "movq      %%mm0, %%mm2 \n\t"
+        "punpckldq %%mm1, %%mm0 \n\t"
+        "punpckhdq %%mm1, %%mm2 \n\t"
+        "movq       (%1), %%mm1 \n\t"
+        "movq      8(%1), %%mm3 \n\t"
+        "movq     16(%1), %%mm4 \n\t"
+        "movq     24(%1), %%mm5 \n\t"
+        "movq     32(%1), %%mm6 \n\t"
+        "movq     40(%1), %%mm7 \n\t"
+        "pmaddwd   %%mm0, %%mm1 \n\t"
+        "pmaddwd   %%mm2, %%mm3 \n\t"
+        "pmaddwd   %%mm0, %%mm4 \n\t"
+        "pmaddwd   %%mm2, %%mm5 \n\t"
+        "pmaddwd   %%mm0, %%mm6 \n\t"
+        "pmaddwd   %%mm2, %%mm7 \n\t"
+        "pmaddwd  48(%1), %%mm0 \n\t"
+        "pmaddwd  56(%1), %%mm2 \n\t"
+        "paddd     %%mm1, %%mm3 \n\t"
+        "paddd     %%mm4, %%mm5 \n\t"
+        "paddd     %%mm6, %%mm7 \n\t"
+        "paddd     %%mm0, %%mm2 \n\t"
+        "movq       (%2), %%mm0 \n\t"
+        "paddd     %%mm0, %%mm3 \n\t"
+        "paddd     %%mm0, %%mm5 \n\t"
+        "paddd     %%mm0, %%mm7 \n\t"
+        "paddd     %%mm0, %%mm2 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm3 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm5 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm7 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm2 \n\t"
+        "packssdw  %%mm5, %%mm3 \n\t"
+        "packssdw  %%mm2, %%mm7 \n\t"
+        "movq      %%mm3,  (%3) \n\t"
+        "movq      %%mm7, 8(%3) \n\t"
+        :
+        : "r" (in), "r" (table), "r" (fdct_r_row), "r" (out));
+}
+
+static av_always_inline void fdct_row_mmx(const int16_t *in, int16_t *out, const int16_t *table)
+{
+    //FIXME reorder (I do not have an old MMX-only CPU here to benchmark ...)
+    __asm__ volatile(
+        "movd     12(%0), %%mm1 \n\t"
+        "punpcklwd 8(%0), %%mm1 \n\t"
+        "movq      %%mm1, %%mm2 \n\t"
+        "psrlq     $0x20, %%mm1 \n\t"
+        "movq      0(%0), %%mm0 \n\t"
+        "punpcklwd %%mm2, %%mm1 \n\t"
+        "movq      %%mm0, %%mm5 \n\t"
+        "paddsw    %%mm1, %%mm0 \n\t"
+        "psubsw    %%mm1, %%mm5 \n\t"
+        "movq      %%mm0, %%mm2 \n\t"
+        "punpckldq %%mm5, %%mm0 \n\t"
+        "punpckhdq %%mm5, %%mm2 \n\t"
+        "movq      0(%1), %%mm1 \n\t"
+        "movq      8(%1), %%mm3 \n\t"
+        "movq     16(%1), %%mm4 \n\t"
+        "movq     24(%1), %%mm5 \n\t"
+        "movq     32(%1), %%mm6 \n\t"
+        "movq     40(%1), %%mm7 \n\t"
+        "pmaddwd   %%mm0, %%mm1 \n\t"
+        "pmaddwd   %%mm2, %%mm3 \n\t"
+        "pmaddwd   %%mm0, %%mm4 \n\t"
+        "pmaddwd   %%mm2, %%mm5 \n\t"
+        "pmaddwd   %%mm0, %%mm6 \n\t"
+        "pmaddwd   %%mm2, %%mm7 \n\t"
+        "pmaddwd  48(%1), %%mm0 \n\t"
+        "pmaddwd  56(%1), %%mm2 \n\t"
+        "paddd     %%mm1, %%mm3 \n\t"
+        "paddd     %%mm4, %%mm5 \n\t"
+        "paddd     %%mm6, %%mm7 \n\t"
+        "paddd     %%mm0, %%mm2 \n\t"
+        "movq       (%2), %%mm0 \n\t"
+        "paddd     %%mm0, %%mm3 \n\t"
+        "paddd     %%mm0, %%mm5 \n\t"
+        "paddd     %%mm0, %%mm7 \n\t"
+        "paddd     %%mm0, %%mm2 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm3 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm5 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm7 \n\t"
+        "psrad $"S(SHIFT_FRW_ROW)", %%mm2 \n\t"
+        "packssdw  %%mm5, %%mm3 \n\t"
+        "packssdw  %%mm2, %%mm7 \n\t"
+        "movq      %%mm3, 0(%3) \n\t"
+        "movq      %%mm7, 8(%3) \n\t"
+        :
+        : "r" (in), "r" (table), "r" (fdct_r_row), "r" (out));
+}
+
+void ff_fdct_mmx(int16_t *block)
+{
+    int64_t align_tmp[16] ATTR_ALIGN(8);
+    int16_t * block1= (int16_t*)align_tmp;
+    const int16_t *table= tab_frw_01234567;
+    int i;
+
+    fdct_col_mmx(block, block1, 0);
+    fdct_col_mmx(block, block1, 4);
+
+    for(i=8;i>0;i--) {
+        fdct_row_mmx(block1, block, table);
+        block1 += 8;
+        table += 32;
+        block += 8;
+    }
+}
+
+void ff_fdct_mmx2(int16_t *block)
+{
+    int64_t align_tmp[16] ATTR_ALIGN(8);
+    int16_t *block1= (int16_t*)align_tmp;
+    const int16_t *table= tab_frw_01234567;
+    int i;
+
+    fdct_col_mmx(block, block1, 0);
+    fdct_col_mmx(block, block1, 4);
+
+    for(i=8;i>0;i--) {
+        fdct_row_mmx2(block1, block, table);
+        block1 += 8;
+        table += 32;
+        block += 8;
+    }
+}
+
+void ff_fdct_sse2(int16_t *block)
+{
+    int64_t align_tmp[16] ATTR_ALIGN(16);
+    int16_t * const block1= (int16_t*)align_tmp;
+
+    fdct_col_sse2(block, block1, 0);
+    fdct_row_sse2(block1, block);
+}
+