lavc: VP9 decoder

Originally written by Ronald S. Bultje <rsbultje@gmail.com> and
Clément Bœsch <u@pkh.me>

Further contributions by:
Anton Khirnov <anton@khirnov.net>
Diego Biurrun <diego@biurrun.de>
Luca Barbato <lu_zero@gentoo.org>
Martin Storsjö <martin@martin.st>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

1 files changed, 245 insertions, 0 deletions

diff --git a/libavcodec/x86/vp9dsp_init.c b/libavcodec/x86/vp9dsp_init.c
new file mode 100644
index 0000000000..540dc3882f
--- /dev/null
+++ b/libavcodec/x86/vp9dsp_init.c
@@ -0,0 +1,245 @@
+/*
+ * VP9 SIMD optimizations
+ *
+ * Copyright (c) 2013 Ronald S. Bultje <rsbultje@gmail.com>
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/cpu.h"
+#include "libavutil/internal.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/asm.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/vp9.h"
+
+#if HAVE_YASM
+
+#define fpel_func(avg, sz, opt)                                         \
+void ff_ ## avg ## sz ## _ ## opt(uint8_t *dst, const uint8_t *src,     \
+                                  ptrdiff_t dst_stride,                 \
+                                  ptrdiff_t src_stride,                 \
+                                  int h, int mx, int my)
+
+fpel_func(put,  4, mmx);
+fpel_func(put,  8, mmx);
+fpel_func(put, 16, sse);
+fpel_func(put, 32, sse);
+fpel_func(put, 64, sse);
+fpel_func(avg,  4, sse);
+fpel_func(avg,  8, sse);
+fpel_func(avg, 16, sse2);
+fpel_func(avg, 32, sse2);
+fpel_func(avg, 64, sse2);
+#undef fpel_func
+
+#define mc_func(avg, sz, dir, opt)                                          \
+void                                                                        \
+ff_ ## avg ## _8tap_1d_ ## dir ## _ ## sz ## _ ## opt(uint8_t *dst,         \
+                                                      const uint8_t *src,   \
+                                                      ptrdiff_t dst_stride, \
+                                                      ptrdiff_t src_stride, \
+                                                      int h,                \
+                                                      const int8_t (*filter)[16])
+
+#define mc_funcs(sz)            \
+    mc_func(put, sz, h, ssse3); \
+    mc_func(avg, sz, h, ssse3); \
+    mc_func(put, sz, v, ssse3); \
+    mc_func(avg, sz, v, ssse3)
+
+mc_funcs(4);
+mc_funcs(8);
+
+#undef mc_funcs
+#undef mc_func
+
+#define mc_rep_func(avg, sz, hsz, dir, opt)                                 \
+static av_always_inline void                                                \
+ff_ ## avg ## _8tap_1d_ ## dir ## _ ## sz ## _ ## opt(uint8_t *dst,         \
+                                                      const uint8_t *src,   \
+                                                      ptrdiff_t dst_stride, \
+                                                      ptrdiff_t src_stride, \
+                                                      int h,                \
+                                                      const int8_t (*filter)[16]) \
+{                                                                           \
+    ff_ ## avg ## _8tap_1d_ ## dir ## _ ## hsz ## _ ## opt(dst, src,        \
+                                                           dst_stride,      \
+                                                           src_stride,      \
+                                                           h,               \
+                                                           filter);         \
+    ff_ ## avg ## _8tap_1d_ ## dir ## _ ## hsz ## _ ## opt(dst + hsz,       \
+                                                           src + hsz,       \
+                                                           dst_stride,      \
+                                                           src_stride,      \
+                                                           h, filter);      \
+}
+
+#define mc_rep_funcs(sz, hsz)            \
+    mc_rep_func(put, sz, hsz, h, ssse3); \
+    mc_rep_func(avg, sz, hsz, h, ssse3); \
+    mc_rep_func(put, sz, hsz, v, ssse3); \
+    mc_rep_func(avg, sz, hsz, v, ssse3)
+
+mc_rep_funcs(16, 8);
+mc_rep_funcs(32, 16);
+mc_rep_funcs(64, 32);
+
+#undef mc_rep_funcs
+#undef mc_rep_func
+
+extern const int8_t ff_filters_ssse3[3][15][4][16];
+
+#define filter_8tap_2d_fn(op, sz, f, fname)                             \
+static void                                                             \
+op ## _8tap_ ## fname ## _ ## sz ## hv_ssse3(uint8_t *dst,              \
+                                             const uint8_t *src,        \
+                                             ptrdiff_t dst_stride,      \
+                                             ptrdiff_t src_stride,      \
+                                             int h, int mx, int my)     \
+{                                                                       \
+    LOCAL_ALIGNED_16(uint8_t, temp, [71 * 64]);                         \
+    ff_put_8tap_1d_h_ ## sz ## _ssse3(temp, src - 3 * src_stride,       \
+                                      64, src_stride,                   \
+                                      h + 7,                            \
+                                      ff_filters_ssse3[f][mx - 1]);     \
+    ff_ ## op ## _8tap_1d_v_ ## sz ## _ssse3(dst, temp + 3 * 64,        \
+                                             dst_stride, 64,            \
+                                             h,                         \
+                                             ff_filters_ssse3[f][my - 1]); \
+}
+
+#define filters_8tap_2d_fn(op, sz)                          \
+    filter_8tap_2d_fn(op, sz, FILTER_8TAP_REGULAR, regular) \
+    filter_8tap_2d_fn(op, sz, FILTER_8TAP_SHARP, sharp)     \
+    filter_8tap_2d_fn(op, sz, FILTER_8TAP_SMOOTH, smooth)
+
+#define filters_8tap_2d_fn2(op) \
+    filters_8tap_2d_fn(op, 64)  \
+    filters_8tap_2d_fn(op, 32)  \
+    filters_8tap_2d_fn(op, 16)  \
+    filters_8tap_2d_fn(op, 8)   \
+    filters_8tap_2d_fn(op, 4)
+
+filters_8tap_2d_fn2(put)
+filters_8tap_2d_fn2(avg)
+
+#undef filters_8tap_2d_fn2
+#undef filters_8tap_2d_fn
+#undef filter_8tap_2d_fn
+
+#define filter_8tap_1d_fn(op, sz, f, fname, dir, dvar)                  \
+static void                                                             \
+op ## _8tap_ ## fname ## _ ## sz ## dir ## _ssse3(uint8_t *dst,         \
+                                                  const uint8_t *src,   \
+                                                  ptrdiff_t dst_stride, \
+                                                  ptrdiff_t src_stride, \
+                                                  int h, int mx,        \
+                                                  int my)               \
+{                                                                       \
+    ff_ ## op ## _8tap_1d_ ## dir ## _ ## sz ## _ssse3(dst, src,        \
+                                                       dst_stride,      \
+                                                       src_stride, h,   \
+                                                       ff_filters_ssse3[f][dvar - 1]); \
+}
+
+#define filters_8tap_1d_fn(op, sz, dir, dvar)                          \
+    filter_8tap_1d_fn(op, sz, FILTER_8TAP_REGULAR, regular, dir, dvar) \
+    filter_8tap_1d_fn(op, sz, FILTER_8TAP_SHARP, sharp, dir, dvar)     \
+    filter_8tap_1d_fn(op, sz, FILTER_8TAP_SMOOTH, smooth, dir, dvar)
+
+#define filters_8tap_1d_fn2(op, sz)             \
+    filters_8tap_1d_fn(op, sz, h, mx)           \
+    filters_8tap_1d_fn(op, sz, v, my)
+
+#define filters_8tap_1d_fn3(op) \
+    filters_8tap_1d_fn2(op, 64) \
+    filters_8tap_1d_fn2(op, 32) \
+    filters_8tap_1d_fn2(op, 16) \
+    filters_8tap_1d_fn2(op,  8) \
+    filters_8tap_1d_fn2(op,  4)
+
+filters_8tap_1d_fn3(put)
+filters_8tap_1d_fn3(avg)
+
+#undef filters_8tap_1d_fn
+#undef filters_8tap_1d_fn2
+#undef filters_8tap_1d_fn3
+#undef filter_8tap_1d_fn
+
+#endif /* HAVE_YASM */
+
+av_cold void ff_vp9dsp_init_x86(VP9DSPContext *dsp)
+{
+#if HAVE_YASM
+    int cpu_flags = av_get_cpu_flags();
+
+#define init_fpel(idx1, idx2, sz, type, opt)                            \
+    dsp->mc[idx1][FILTER_8TAP_SMOOTH ][idx2][0][0] =                    \
+    dsp->mc[idx1][FILTER_8TAP_REGULAR][idx2][0][0] =                    \
+    dsp->mc[idx1][FILTER_8TAP_SHARP  ][idx2][0][0] =                    \
+    dsp->mc[idx1][FILTER_BILINEAR    ][idx2][0][0] = ff_ ## type ## sz ## _ ## opt
+
+
+#define init_subpel1(idx1, idx2, idxh, idxv, sz, dir, type, opt) \
+    dsp->mc[idx1][FILTER_8TAP_SMOOTH][idx2][idxh][idxv]  = type ## _8tap_smooth_  ## sz ## dir ## _ ## opt; \
+    dsp->mc[idx1][FILTER_8TAP_REGULAR][idx2][idxh][idxv] = type ## _8tap_regular_ ## sz ## dir ## _ ## opt; \
+    dsp->mc[idx1][FILTER_8TAP_SHARP][idx2][idxh][idxv]   = type ## _8tap_sharp_   ## sz ## dir ## _ ## opt
+
+#define init_subpel2(idx, idxh, idxv, dir, type, opt)     \
+    init_subpel1(0, idx, idxh, idxv, 64, dir, type, opt); \
+    init_subpel1(1, idx, idxh, idxv, 32, dir, type, opt); \
+    init_subpel1(2, idx, idxh, idxv, 16, dir, type, opt); \
+    init_subpel1(3, idx, idxh, idxv,  8, dir, type, opt); \
+    init_subpel1(4, idx, idxh, idxv,  4, dir, type, opt)
+
+#define init_subpel3(idx, type, opt)        \
+    init_subpel2(idx, 1, 1, hv, type, opt); \
+    init_subpel2(idx, 0, 1,  v, type, opt); \
+    init_subpel2(idx, 1, 0,  h, type, opt)
+
+    if (EXTERNAL_MMX(cpu_flags)) {
+        init_fpel(4, 0,  4, put, mmx);
+        init_fpel(3, 0,  8, put, mmx);
+    }
+
+    if (EXTERNAL_SSE(cpu_flags)) {
+        init_fpel(2, 0, 16, put, sse);
+        init_fpel(1, 0, 32, put, sse);
+        init_fpel(0, 0, 64, put, sse);
+        init_fpel(4, 1,  4, avg, sse);
+        init_fpel(3, 1,  8, avg, sse);
+    }
+
+    if (EXTERNAL_SSE2(cpu_flags)) {
+        init_fpel(2, 1, 16, avg, sse2);
+        init_fpel(1, 1, 32, avg, sse2);
+        init_fpel(0, 1, 64, avg, sse2);
+    }
+
+    if (EXTERNAL_SSSE3(cpu_flags)) {
+        init_subpel3(0, put, ssse3);
+        init_subpel3(1, avg, ssse3);
+    }
+
+#undef init_fpel
+#undef init_subpel1
+#undef init_subpel2
+#undef init_subpel3
+
+#endif /* HAVE_YASM */
+}