First shot at VP8 optimizations:

- MMXEXT, SSE2 and SSSE3 MC functions
- MMX and SSE4 IDCT dc_add functions

Patch by Jason Garrett-Glaser <darkshikari gmail com> and myself.

Originally committed as revision 23815 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 216 insertions, 0 deletions

diff --git a/libavcodec/x86/vp8dsp-init.c b/libavcodec/x86/vp8dsp-init.c
new file mode 100644
index 0000000000..f830459534
--- /dev/null
+++ b/libavcodec/x86/vp8dsp-init.c
@@ -0,0 +1,216 @@
+/*
+ * VP8 DSP functions x86-optimized
+ * Copyright (c) 2010 Ronald S. Bultje <rsbultje@gmail.com>
+ * Copyright (c) 2010 Jason Garrett-Glaser <darkshikari@gmail.com>
+ *
+ * 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/vp8dsp.h"
+
+/*
+ * MC functions
+ */
+extern void ff_put_vp8_epel4_h4_mmxext(uint8_t *dst, int dststride,
+                                       uint8_t *src, int srcstride,
+                                       int height, int mx, int my);
+extern void ff_put_vp8_epel4_h6_mmxext(uint8_t *dst, int dststride,
+                                       uint8_t *src, int srcstride,
+                                       int height, int mx, int my);
+extern void ff_put_vp8_epel4_v4_mmxext(uint8_t *dst, int dststride,
+                                       uint8_t *src, int srcstride,
+                                       int height, int mx, int my);
+extern void ff_put_vp8_epel4_v6_mmxext(uint8_t *dst, int dststride,
+                                       uint8_t *src, int srcstride,
+                                       int height, int mx, int my);
+
+extern void ff_put_vp8_epel8_h4_sse2  (uint8_t *dst, int dststride,
+                                       uint8_t *src, int srcstride,
+                                       int height, int mx, int my);
+extern void ff_put_vp8_epel8_h6_sse2  (uint8_t *dst, int dststride,
+                                       uint8_t *src, int srcstride,
+                                       int height, int mx, int my);
+extern void ff_put_vp8_epel8_v4_sse2  (uint8_t *dst, int dststride,
+                                       uint8_t *src, int srcstride,
+                                       int height, int mx, int my);
+extern void ff_put_vp8_epel8_v6_sse2  (uint8_t *dst, int dststride,
+                                       uint8_t *src, int srcstride,
+                                       int height, int mx, int my);
+
+extern void ff_put_vp8_epel8_h4_ssse3 (uint8_t *dst, int dststride,
+                                       uint8_t *src, int srcstride,
+                                       int height, int mx, int my);
+extern void ff_put_vp8_epel8_h6_ssse3 (uint8_t *dst, int dststride,
+                                       uint8_t *src, int srcstride,
+                                       int height, int mx, int my);
+extern void ff_put_vp8_epel8_v4_ssse3 (uint8_t *dst, int dststride,
+                                       uint8_t *src, int srcstride,
+                                       int height, int mx, int my);
+extern void ff_put_vp8_epel8_v6_ssse3 (uint8_t *dst, int dststride,
+                                       uint8_t *src, int srcstride,
+                                       int height, int mx, int my);
+
+#define TAP_W16(OPT, TAPTYPE) \
+static void ff_put_vp8_epel16_ ## TAPTYPE ## _ ## OPT(uint8_t *dst, \
+                                                      int dststride, \
+                                                      uint8_t *src, \
+                                                      int srcstride, \
+                                                      int height, \
+                                                      int mx, int my) \
+{ \
+    ff_put_vp8_epel8_ ## TAPTYPE ## _ ## OPT(dst,     dststride, \
+                                             src,     srcstride, \
+                                             height, mx, my); \
+    ff_put_vp8_epel8_ ## TAPTYPE ## _ ## OPT(dst + 8, dststride, \
+                                             src + 8, srcstride, \
+                                             height, mx, my); \
+}
+#define TAP_W8(OPT, TAPTYPE) \
+static void ff_put_vp8_epel8_ ## TAPTYPE ## _ ## OPT(uint8_t *dst, \
+                                                     int dststride, \
+                                                     uint8_t *src, \
+                                                     int srcstride, \
+                                                     int height, \
+                                                     int mx, int my) \
+{ \
+    ff_put_vp8_epel4_ ## TAPTYPE ## _ ## OPT(dst,     dststride, \
+                                             src,     srcstride, \
+                                             height, mx, my); \
+    ff_put_vp8_epel4_ ## TAPTYPE ## _ ## OPT(dst + 4, dststride, \
+                                             src + 4, srcstride, \
+                                             height, mx, my); \
+}
+
+TAP_W8 (mmxext, h4)
+TAP_W8 (mmxext, h6)
+TAP_W16(mmxext, h6)
+TAP_W8 (mmxext, v4)
+TAP_W8 (mmxext, v6)
+TAP_W16(mmxext, v6)
+
+TAP_W16(sse2,   h6)
+TAP_W16(sse2,   v6)
+
+TAP_W16(ssse3,  h6)
+TAP_W16(ssse3,  v6)
+
+#define HVTAP(OPT, ALIGN, TAPNUMX, TAPNUMY, SIZE, MAXHEIGHT) \
+static void ff_put_vp8_epel ## SIZE ## _h ## TAPNUMX ## v ## TAPNUMY ## _ ## OPT \
+                                                (uint8_t *dst, int dststride, \
+                                                 uint8_t *src, int srcstride, \
+                                                 int height, int mx, int my) \
+{ \
+    DECLARE_ALIGNED(ALIGN, uint8_t, tmp)[SIZE * (MAXHEIGHT + TAPNUMY - 1)]; \
+    uint8_t *tmpptr = tmp + SIZE * (TAPNUMY / 2 - 1); \
+    src -= srcstride * (TAPNUMY / 2 - 1); \
+    ff_put_vp8_epel ## SIZE ## _h ## TAPNUMX ## _ ## OPT(tmp, SIZE, \
+                                                         src, srcstride, \
+                                                         height + TAPNUMY - 1, \
+                                                         mx, my); \
+    ff_put_vp8_epel ## SIZE ## _v ## TAPNUMY ## _ ## OPT(dst, dststride, \
+                                                         tmpptr, SIZE, \
+                                                         height, mx, my); \
+}
+
+#define HVTAPMMX(x, y) \
+HVTAP(mmxext, 8, x, y,  4,  8) \
+HVTAP(mmxext, 8, x, y,  8, 16)
+
+HVTAPMMX(4, 4)
+HVTAPMMX(4, 6)
+HVTAPMMX(6, 4)
+HVTAPMMX(6, 6)
+HVTAP(mmxext, 8, 6, 6, 16, 16)
+
+#define HVTAPSSE2(x, y, w) \
+HVTAP(sse2,  16, x, y, w, 16) \
+HVTAP(ssse3, 16, x, y, w, 16)
+
+HVTAPSSE2(4, 4, 8)
+HVTAPSSE2(4, 6, 8)
+HVTAPSSE2(6, 4, 8)
+HVTAPSSE2(6, 6, 8)
+HVTAPSSE2(6, 6, 16)
+
+extern void ff_vp8_idct_dc_add_mmx(uint8_t *dst, DCTELEM block[16], int stride);
+extern void ff_vp8_idct_dc_add_sse4(uint8_t *dst, DCTELEM block[16], int stride);
+
+av_cold void ff_vp8dsp_init_x86(VP8DSPContext* c)
+{
+    mm_flags = mm_support();
+
+    if (mm_flags & FF_MM_MMX) {
+        c->vp8_idct_dc_add                  = ff_vp8_idct_dc_add_mmx;
+    }
+
+    /* note that 4-tap width=16 functions are missing because w=16
+     * is only used for luma, and luma is always a copy or sixtap. */
+    if (mm_flags & FF_MM_MMXEXT) {
+        c->put_vp8_epel_pixels_tab[0][0][2] = ff_put_vp8_epel16_h6_mmxext;
+        c->put_vp8_epel_pixels_tab[0][2][0] = ff_put_vp8_epel16_v6_mmxext;
+        c->put_vp8_epel_pixels_tab[0][2][2] = ff_put_vp8_epel16_h6v6_mmxext;
+        c->put_vp8_epel_pixels_tab[1][0][1] = ff_put_vp8_epel8_h4_mmxext;
+        c->put_vp8_epel_pixels_tab[1][0][2] = ff_put_vp8_epel8_h6_mmxext;
+        c->put_vp8_epel_pixels_tab[1][1][0] = ff_put_vp8_epel8_v4_mmxext;
+        c->put_vp8_epel_pixels_tab[1][1][1] = ff_put_vp8_epel8_h4v4_mmxext;
+        c->put_vp8_epel_pixels_tab[1][1][2] = ff_put_vp8_epel8_h6v4_mmxext;
+        c->put_vp8_epel_pixels_tab[1][2][0] = ff_put_vp8_epel8_v6_mmxext;
+        c->put_vp8_epel_pixels_tab[1][2][1] = ff_put_vp8_epel8_h4v6_mmxext;
+        c->put_vp8_epel_pixels_tab[1][2][2] = ff_put_vp8_epel8_h6v6_mmxext;
+        c->put_vp8_epel_pixels_tab[2][0][1] = ff_put_vp8_epel4_h4_mmxext;
+        c->put_vp8_epel_pixels_tab[2][0][2] = ff_put_vp8_epel4_h6_mmxext;
+        c->put_vp8_epel_pixels_tab[2][1][0] = ff_put_vp8_epel4_v4_mmxext;
+        c->put_vp8_epel_pixels_tab[2][1][1] = ff_put_vp8_epel4_h4v4_mmxext;
+        c->put_vp8_epel_pixels_tab[2][1][2] = ff_put_vp8_epel4_h6v4_mmxext;
+        c->put_vp8_epel_pixels_tab[2][2][0] = ff_put_vp8_epel4_v6_mmxext;
+        c->put_vp8_epel_pixels_tab[2][2][1] = ff_put_vp8_epel4_h4v6_mmxext;
+        c->put_vp8_epel_pixels_tab[2][2][2] = ff_put_vp8_epel4_h6v6_mmxext;
+    }
+
+    if (mm_flags & FF_MM_SSE2) {
+        c->put_vp8_epel_pixels_tab[0][0][2] = ff_put_vp8_epel16_h6_sse2;
+        c->put_vp8_epel_pixels_tab[0][2][0] = ff_put_vp8_epel16_v6_sse2;
+        c->put_vp8_epel_pixels_tab[0][2][2] = ff_put_vp8_epel16_h6v6_sse2;
+        c->put_vp8_epel_pixels_tab[1][0][1] = ff_put_vp8_epel8_h4_sse2;
+        c->put_vp8_epel_pixels_tab[1][0][2] = ff_put_vp8_epel8_h6_sse2;
+        c->put_vp8_epel_pixels_tab[1][1][0] = ff_put_vp8_epel8_v4_sse2;
+        c->put_vp8_epel_pixels_tab[1][1][1] = ff_put_vp8_epel8_h4v4_sse2;
+        c->put_vp8_epel_pixels_tab[1][1][2] = ff_put_vp8_epel8_h6v4_sse2;
+        c->put_vp8_epel_pixels_tab[1][2][0] = ff_put_vp8_epel8_v6_sse2;
+        c->put_vp8_epel_pixels_tab[1][2][1] = ff_put_vp8_epel8_h4v6_sse2;
+        c->put_vp8_epel_pixels_tab[1][2][2] = ff_put_vp8_epel8_h6v6_sse2;
+    }
+
+    if (mm_flags & FF_MM_SSSE3) {
+        c->put_vp8_epel_pixels_tab[0][0][2] = ff_put_vp8_epel16_h6_ssse3;
+        c->put_vp8_epel_pixels_tab[0][2][0] = ff_put_vp8_epel16_v6_ssse3;
+        c->put_vp8_epel_pixels_tab[0][2][2] = ff_put_vp8_epel16_h6v6_ssse3;
+        c->put_vp8_epel_pixels_tab[1][0][1] = ff_put_vp8_epel8_h4_ssse3;
+        c->put_vp8_epel_pixels_tab[1][0][2] = ff_put_vp8_epel8_h6_ssse3;
+        c->put_vp8_epel_pixels_tab[1][1][0] = ff_put_vp8_epel8_v4_ssse3;
+        c->put_vp8_epel_pixels_tab[1][1][1] = ff_put_vp8_epel8_h4v4_ssse3;
+        c->put_vp8_epel_pixels_tab[1][1][2] = ff_put_vp8_epel8_h6v4_ssse3;
+        c->put_vp8_epel_pixels_tab[1][2][0] = ff_put_vp8_epel8_v6_ssse3;
+        c->put_vp8_epel_pixels_tab[1][2][1] = ff_put_vp8_epel8_h4v6_ssse3;
+        c->put_vp8_epel_pixels_tab[1][2][2] = ff_put_vp8_epel8_h6v6_ssse3;
+    }
+
+    if (mm_flags & FF_MM_SSE4) {
+        c->vp8_idct_dc_add                  = ff_vp8_idct_dc_add_sse4;
+    }
+}