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, 461 insertions, 0 deletions

diff --git a/libavcodec/x86/motion_est_mmx.c b/libavcodec/x86/motion_est_mmx.c
new file mode 100644
index 0000000000..c866e8ad7b
--- /dev/null
+++ b/libavcodec/x86/motion_est_mmx.c
@@ -0,0 +1,461 @@
+/*
+ * MMX optimized motion estimation
+ * Copyright (c) 2001 Fabrice Bellard.
+ * Copyright (c) 2002-2004 Michael Niedermayer
+ *
+ * mostly by Michael Niedermayer <michaelni@gmx.at>
+ *
+ * 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/x86_cpu.h"
+#include "libavcodec/dsputil.h"
+
+DECLARE_ASM_CONST(8, uint64_t, round_tab[3])={
+0x0000000000000000ULL,
+0x0001000100010001ULL,
+0x0002000200020002ULL,
+};
+
+DECLARE_ASM_CONST(8, uint64_t, bone)= 0x0101010101010101LL;
+
+static inline void sad8_1_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
+{
+    x86_reg len= -(stride*h);
+    __asm__ volatile(
+        ASMALIGN(4)
+        "1:                             \n\t"
+        "movq (%1, %%"REG_a"), %%mm0    \n\t"
+        "movq (%2, %%"REG_a"), %%mm2    \n\t"
+        "movq (%2, %%"REG_a"), %%mm4    \n\t"
+        "add %3, %%"REG_a"              \n\t"
+        "psubusb %%mm0, %%mm2           \n\t"
+        "psubusb %%mm4, %%mm0           \n\t"
+        "movq (%1, %%"REG_a"), %%mm1    \n\t"
+        "movq (%2, %%"REG_a"), %%mm3    \n\t"
+        "movq (%2, %%"REG_a"), %%mm5    \n\t"
+        "psubusb %%mm1, %%mm3           \n\t"
+        "psubusb %%mm5, %%mm1           \n\t"
+        "por %%mm2, %%mm0               \n\t"
+        "por %%mm1, %%mm3               \n\t"
+        "movq %%mm0, %%mm1              \n\t"
+        "movq %%mm3, %%mm2              \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpckhbw %%mm7, %%mm1         \n\t"
+        "punpcklbw %%mm7, %%mm3         \n\t"
+        "punpckhbw %%mm7, %%mm2         \n\t"
+        "paddw %%mm1, %%mm0             \n\t"
+        "paddw %%mm3, %%mm2             \n\t"
+        "paddw %%mm2, %%mm0             \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "add %3, %%"REG_a"              \n\t"
+        " js 1b                         \n\t"
+        : "+a" (len)
+        : "r" (blk1 - len), "r" (blk2 - len), "r" ((x86_reg)stride)
+    );
+}
+
+static inline void sad8_1_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
+{
+    __asm__ volatile(
+        ASMALIGN(4)
+        "1:                             \n\t"
+        "movq (%1), %%mm0               \n\t"
+        "movq (%1, %3), %%mm1           \n\t"
+        "psadbw (%2), %%mm0             \n\t"
+        "psadbw (%2, %3), %%mm1         \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "paddw %%mm1, %%mm6             \n\t"
+        "lea (%1,%3,2), %1              \n\t"
+        "lea (%2,%3,2), %2              \n\t"
+        "sub $2, %0                     \n\t"
+        " jg 1b                         \n\t"
+        : "+r" (h), "+r" (blk1), "+r" (blk2)
+        : "r" ((x86_reg)stride)
+    );
+}
+
+static int sad16_sse2(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)
+{
+    int ret;
+    __asm__ volatile(
+        "pxor %%xmm6, %%xmm6            \n\t"
+        ASMALIGN(4)
+        "1:                             \n\t"
+        "movdqu (%1), %%xmm0            \n\t"
+        "movdqu (%1, %3), %%xmm1        \n\t"
+        "psadbw (%2), %%xmm0            \n\t"
+        "psadbw (%2, %3), %%xmm1        \n\t"
+        "paddw %%xmm0, %%xmm6           \n\t"
+        "paddw %%xmm1, %%xmm6           \n\t"
+        "lea (%1,%3,2), %1              \n\t"
+        "lea (%2,%3,2), %2              \n\t"
+        "sub $2, %0                     \n\t"
+        " jg 1b                         \n\t"
+        : "+r" (h), "+r" (blk1), "+r" (blk2)
+        : "r" ((x86_reg)stride)
+    );
+    __asm__ volatile(
+        "movhlps %%xmm6, %%xmm0         \n\t"
+        "paddw   %%xmm0, %%xmm6         \n\t"
+        "movd    %%xmm6, %0             \n\t"
+        : "=r"(ret)
+    );
+    return ret;
+}
+
+static inline void sad8_x2a_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
+{
+    __asm__ volatile(
+        ASMALIGN(4)
+        "1:                             \n\t"
+        "movq (%1), %%mm0               \n\t"
+        "movq (%1, %3), %%mm1           \n\t"
+        "pavgb 1(%1), %%mm0             \n\t"
+        "pavgb 1(%1, %3), %%mm1         \n\t"
+        "psadbw (%2), %%mm0             \n\t"
+        "psadbw (%2, %3), %%mm1         \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "paddw %%mm1, %%mm6             \n\t"
+        "lea (%1,%3,2), %1              \n\t"
+        "lea (%2,%3,2), %2              \n\t"
+        "sub $2, %0                     \n\t"
+        " jg 1b                         \n\t"
+        : "+r" (h), "+r" (blk1), "+r" (blk2)
+        : "r" ((x86_reg)stride)
+    );
+}
+
+static inline void sad8_y2a_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
+{
+    __asm__ volatile(
+        "movq (%1), %%mm0               \n\t"
+        "add %3, %1                     \n\t"
+        ASMALIGN(4)
+        "1:                             \n\t"
+        "movq (%1), %%mm1               \n\t"
+        "movq (%1, %3), %%mm2           \n\t"
+        "pavgb %%mm1, %%mm0             \n\t"
+        "pavgb %%mm2, %%mm1             \n\t"
+        "psadbw (%2), %%mm0             \n\t"
+        "psadbw (%2, %3), %%mm1         \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "paddw %%mm1, %%mm6             \n\t"
+        "movq %%mm2, %%mm0              \n\t"
+        "lea (%1,%3,2), %1              \n\t"
+        "lea (%2,%3,2), %2              \n\t"
+        "sub $2, %0                     \n\t"
+        " jg 1b                         \n\t"
+        : "+r" (h), "+r" (blk1), "+r" (blk2)
+        : "r" ((x86_reg)stride)
+    );
+}
+
+static inline void sad8_4_mmx2(uint8_t *blk1, uint8_t *blk2, int stride, int h)
+{
+    __asm__ volatile(
+        "movq "MANGLE(bone)", %%mm5     \n\t"
+        "movq (%1), %%mm0               \n\t"
+        "pavgb 1(%1), %%mm0             \n\t"
+        "add %3, %1                     \n\t"
+        ASMALIGN(4)
+        "1:                             \n\t"
+        "movq (%1), %%mm1               \n\t"
+        "movq (%1,%3), %%mm2            \n\t"
+        "pavgb 1(%1), %%mm1             \n\t"
+        "pavgb 1(%1,%3), %%mm2          \n\t"
+        "psubusb %%mm5, %%mm1           \n\t"
+        "pavgb %%mm1, %%mm0             \n\t"
+        "pavgb %%mm2, %%mm1             \n\t"
+        "psadbw (%2), %%mm0             \n\t"
+        "psadbw (%2,%3), %%mm1          \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "paddw %%mm1, %%mm6             \n\t"
+        "movq %%mm2, %%mm0              \n\t"
+        "lea (%1,%3,2), %1              \n\t"
+        "lea (%2,%3,2), %2              \n\t"
+        "sub $2, %0                     \n\t"
+        " jg 1b                         \n\t"
+        : "+r" (h), "+r" (blk1), "+r" (blk2)
+        : "r" ((x86_reg)stride)
+    );
+}
+
+static inline void sad8_2_mmx(uint8_t *blk1a, uint8_t *blk1b, uint8_t *blk2, int stride, int h)
+{
+    x86_reg len= -(stride*h);
+    __asm__ volatile(
+        ASMALIGN(4)
+        "1:                             \n\t"
+        "movq (%1, %%"REG_a"), %%mm0    \n\t"
+        "movq (%2, %%"REG_a"), %%mm1    \n\t"
+        "movq (%1, %%"REG_a"), %%mm2    \n\t"
+        "movq (%2, %%"REG_a"), %%mm3    \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpcklbw %%mm7, %%mm1         \n\t"
+        "punpckhbw %%mm7, %%mm2         \n\t"
+        "punpckhbw %%mm7, %%mm3         \n\t"
+        "paddw %%mm0, %%mm1             \n\t"
+        "paddw %%mm2, %%mm3             \n\t"
+        "movq (%3, %%"REG_a"), %%mm4    \n\t"
+        "movq (%3, %%"REG_a"), %%mm2    \n\t"
+        "paddw %%mm5, %%mm1             \n\t"
+        "paddw %%mm5, %%mm3             \n\t"
+        "psrlw $1, %%mm1                \n\t"
+        "psrlw $1, %%mm3                \n\t"
+        "packuswb %%mm3, %%mm1          \n\t"
+        "psubusb %%mm1, %%mm4           \n\t"
+        "psubusb %%mm2, %%mm1           \n\t"
+        "por %%mm4, %%mm1               \n\t"
+        "movq %%mm1, %%mm0              \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpckhbw %%mm7, %%mm1         \n\t"
+        "paddw %%mm1, %%mm0             \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "add %4, %%"REG_a"              \n\t"
+        " js 1b                         \n\t"
+        : "+a" (len)
+        : "r" (blk1a - len), "r" (blk1b -len), "r" (blk2 - len), "r" ((x86_reg)stride)
+    );
+}
+
+static inline void sad8_4_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
+{
+    x86_reg len= -(stride*h);
+    __asm__ volatile(
+        "movq (%1, %%"REG_a"), %%mm0    \n\t"
+        "movq 1(%1, %%"REG_a"), %%mm2   \n\t"
+        "movq %%mm0, %%mm1              \n\t"
+        "movq %%mm2, %%mm3              \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpckhbw %%mm7, %%mm1         \n\t"
+        "punpcklbw %%mm7, %%mm2         \n\t"
+        "punpckhbw %%mm7, %%mm3         \n\t"
+        "paddw %%mm2, %%mm0             \n\t"
+        "paddw %%mm3, %%mm1             \n\t"
+        ASMALIGN(4)
+        "1:                             \n\t"
+        "movq (%2, %%"REG_a"), %%mm2    \n\t"
+        "movq 1(%2, %%"REG_a"), %%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"
+        "paddw %%mm4, %%mm2             \n\t"
+        "paddw %%mm5, %%mm3             \n\t"
+        "movq 16+"MANGLE(round_tab)", %%mm5 \n\t"
+        "paddw %%mm2, %%mm0             \n\t"
+        "paddw %%mm3, %%mm1             \n\t"
+        "paddw %%mm5, %%mm0             \n\t"
+        "paddw %%mm5, %%mm1             \n\t"
+        "movq (%3, %%"REG_a"), %%mm4    \n\t"
+        "movq (%3, %%"REG_a"), %%mm5    \n\t"
+        "psrlw $2, %%mm0                \n\t"
+        "psrlw $2, %%mm1                \n\t"
+        "packuswb %%mm1, %%mm0          \n\t"
+        "psubusb %%mm0, %%mm4           \n\t"
+        "psubusb %%mm5, %%mm0           \n\t"
+        "por %%mm4, %%mm0               \n\t"
+        "movq %%mm0, %%mm4              \n\t"
+        "punpcklbw %%mm7, %%mm0         \n\t"
+        "punpckhbw %%mm7, %%mm4         \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "paddw %%mm4, %%mm6             \n\t"
+        "movq  %%mm2, %%mm0             \n\t"
+        "movq  %%mm3, %%mm1             \n\t"
+        "add %4, %%"REG_a"              \n\t"
+        " js 1b                         \n\t"
+        : "+a" (len)
+        : "r" (blk1 - len), "r" (blk1 -len + stride), "r" (blk2 - len), "r" ((x86_reg)stride)
+    );
+}
+
+static inline int sum_mmx(void)
+{
+    int ret;
+    __asm__ volatile(
+        "movq %%mm6, %%mm0              \n\t"
+        "psrlq $32, %%mm6               \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "movq %%mm6, %%mm0              \n\t"
+        "psrlq $16, %%mm6               \n\t"
+        "paddw %%mm0, %%mm6             \n\t"
+        "movd %%mm6, %0                 \n\t"
+        : "=r" (ret)
+    );
+    return ret&0xFFFF;
+}
+
+static inline int sum_mmx2(void)
+{
+    int ret;
+    __asm__ volatile(
+        "movd %%mm6, %0                 \n\t"
+        : "=r" (ret)
+    );
+    return ret;
+}
+
+static inline void sad8_x2a_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
+{
+    sad8_2_mmx(blk1, blk1+1, blk2, stride, h);
+}
+static inline void sad8_y2a_mmx(uint8_t *blk1, uint8_t *blk2, int stride, int h)
+{
+    sad8_2_mmx(blk1, blk1+stride, blk2, stride, h);
+}
+
+
+#define PIX_SAD(suf)\
+static int sad8_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
+{\
+    assert(h==8);\
+    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
+                 "pxor %%mm6, %%mm6     \n\t":);\
+\
+    sad8_1_ ## suf(blk1, blk2, stride, 8);\
+\
+    return sum_ ## suf();\
+}\
+static int sad8_x2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
+{\
+    assert(h==8);\
+    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
+                 "pxor %%mm6, %%mm6     \n\t"\
+                 "movq %0, %%mm5        \n\t"\
+                 :: "m"(round_tab[1]) \
+                 );\
+\
+    sad8_x2a_ ## suf(blk1, blk2, stride, 8);\
+\
+    return sum_ ## suf();\
+}\
+\
+static int sad8_y2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
+{\
+    assert(h==8);\
+    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
+                 "pxor %%mm6, %%mm6     \n\t"\
+                 "movq %0, %%mm5        \n\t"\
+                 :: "m"(round_tab[1]) \
+                 );\
+\
+    sad8_y2a_ ## suf(blk1, blk2, stride, 8);\
+\
+    return sum_ ## suf();\
+}\
+\
+static int sad8_xy2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
+{\
+    assert(h==8);\
+    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
+                 "pxor %%mm6, %%mm6     \n\t"\
+                 ::);\
+\
+    sad8_4_ ## suf(blk1, blk2, stride, 8);\
+\
+    return sum_ ## suf();\
+}\
+\
+static int sad16_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
+{\
+    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
+                 "pxor %%mm6, %%mm6     \n\t":);\
+\
+    sad8_1_ ## suf(blk1  , blk2  , stride, h);\
+    sad8_1_ ## suf(blk1+8, blk2+8, stride, h);\
+\
+    return sum_ ## suf();\
+}\
+static int sad16_x2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
+{\
+    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
+                 "pxor %%mm6, %%mm6     \n\t"\
+                 "movq %0, %%mm5        \n\t"\
+                 :: "m"(round_tab[1]) \
+                 );\
+\
+    sad8_x2a_ ## suf(blk1  , blk2  , stride, h);\
+    sad8_x2a_ ## suf(blk1+8, blk2+8, stride, h);\
+\
+    return sum_ ## suf();\
+}\
+static int sad16_y2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
+{\
+    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
+                 "pxor %%mm6, %%mm6     \n\t"\
+                 "movq %0, %%mm5        \n\t"\
+                 :: "m"(round_tab[1]) \
+                 );\
+\
+    sad8_y2a_ ## suf(blk1  , blk2  , stride, h);\
+    sad8_y2a_ ## suf(blk1+8, blk2+8, stride, h);\
+\
+    return sum_ ## suf();\
+}\
+static int sad16_xy2_ ## suf(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)\
+{\
+    __asm__ volatile("pxor %%mm7, %%mm7     \n\t"\
+                 "pxor %%mm6, %%mm6     \n\t"\
+                 ::);\
+\
+    sad8_4_ ## suf(blk1  , blk2  , stride, h);\
+    sad8_4_ ## suf(blk1+8, blk2+8, stride, h);\
+\
+    return sum_ ## suf();\
+}\
+
+PIX_SAD(mmx)
+PIX_SAD(mmx2)
+
+void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx)
+{
+    if (mm_flags & FF_MM_MMX) {
+        c->pix_abs[0][0] = sad16_mmx;
+        c->pix_abs[0][1] = sad16_x2_mmx;
+        c->pix_abs[0][2] = sad16_y2_mmx;
+        c->pix_abs[0][3] = sad16_xy2_mmx;
+        c->pix_abs[1][0] = sad8_mmx;
+        c->pix_abs[1][1] = sad8_x2_mmx;
+        c->pix_abs[1][2] = sad8_y2_mmx;
+        c->pix_abs[1][3] = sad8_xy2_mmx;
+
+        c->sad[0]= sad16_mmx;
+        c->sad[1]= sad8_mmx;
+    }
+    if (mm_flags & FF_MM_MMXEXT) {
+        c->pix_abs[0][0] = sad16_mmx2;
+        c->pix_abs[1][0] = sad8_mmx2;
+
+        c->sad[0]= sad16_mmx2;
+        c->sad[1]= sad8_mmx2;
+
+        if(!(avctx->flags & CODEC_FLAG_BITEXACT)){
+            c->pix_abs[0][1] = sad16_x2_mmx2;
+            c->pix_abs[0][2] = sad16_y2_mmx2;
+            c->pix_abs[0][3] = sad16_xy2_mmx2;
+            c->pix_abs[1][1] = sad8_x2_mmx2;
+            c->pix_abs[1][2] = sad8_y2_mmx2;
+            c->pix_abs[1][3] = sad8_xy2_mmx2;
+        }
+    }
+    if ((mm_flags & FF_MM_SSE2) && !(mm_flags & FF_MM_3DNOW)) {
+        c->sad[0]= sad16_sse2;
+    }
+}