dsputil: Split off *_8x8basis to a separate context

1 files changed, 125 insertions, 0 deletions

diff --git a/libavcodec/x86/mpegvideoencdsp_init.c b/libavcodec/x86/mpegvideoencdsp_init.c
new file mode 100644
index 0000000..db2c37f
--- /dev/null
+++ b/libavcodec/x86/mpegvideoencdsp_init.c
@@ -0,0 +1,125 @@
+/*
+ * 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/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/x86/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/mpegvideoencdsp.h"
+
+#if HAVE_INLINE_ASM
+
+#define PHADDD(a, t)                            \
+    "movq  " #a ", " #t "               \n\t"   \
+    "psrlq    $32, " #a "               \n\t"   \
+    "paddd " #t ", " #a "               \n\t"
+
+/*
+ * pmulhw:   dst[0 - 15] = (src[0 - 15] * dst[0 - 15])[16 - 31]
+ * pmulhrw:  dst[0 - 15] = (src[0 - 15] * dst[0 - 15] + 0x8000)[16 - 31]
+ * pmulhrsw: dst[0 - 15] = (src[0 - 15] * dst[0 - 15] + 0x4000)[15 - 30]
+ */
+#define PMULHRW(x, y, s, o)                     \
+    "pmulhw " #s ", " #x "              \n\t"   \
+    "pmulhw " #s ", " #y "              \n\t"   \
+    "paddw  " #o ", " #x "              \n\t"   \
+    "paddw  " #o ", " #y "              \n\t"   \
+    "psraw      $1, " #x "              \n\t"   \
+    "psraw      $1, " #y "              \n\t"
+#define DEF(x) x ## _mmx
+#define SET_RND MOVQ_WONE
+#define SCALE_OFFSET 1
+
+#include "mpegvideoenc_qns_template.c"
+
+#undef DEF
+#undef SET_RND
+#undef SCALE_OFFSET
+#undef PMULHRW
+
+#define DEF(x) x ## _3dnow
+#define SET_RND(x)
+#define SCALE_OFFSET 0
+#define PMULHRW(x, y, s, o)                     \
+    "pmulhrw " #s ", " #x "             \n\t"   \
+    "pmulhrw " #s ", " #y "             \n\t"
+
+#include "mpegvideoenc_qns_template.c"
+
+#undef DEF
+#undef SET_RND
+#undef SCALE_OFFSET
+#undef PMULHRW
+
+#if HAVE_SSSE3_INLINE
+#undef PHADDD
+#define DEF(x) x ## _ssse3
+#define SET_RND(x)
+#define SCALE_OFFSET -1
+
+#define PHADDD(a, t)                            \
+    "pshufw $0x0E, " #a ", " #t "       \n\t"   \
+    /* faster than phaddd on core2 */           \
+    "paddd " #t ", " #a "               \n\t"
+
+#define PMULHRW(x, y, s, o)                     \
+    "pmulhrsw " #s ", " #x "            \n\t"   \
+    "pmulhrsw " #s ", " #y "            \n\t"
+
+#include "mpegvideoenc_qns_template.c"
+
+#undef DEF
+#undef SET_RND
+#undef SCALE_OFFSET
+#undef PMULHRW
+#undef PHADDD
+#endif /* HAVE_SSSE3_INLINE */
+
+#endif /* HAVE_INLINE_ASM */
+
+av_cold void ff_mpegvideoencdsp_init_x86(MpegvideoEncDSPContext *c,
+                                         AVCodecContext *avctx)
+{
+#if HAVE_INLINE_ASM
+    int cpu_flags = av_get_cpu_flags();
+
+    if (INLINE_MMX(cpu_flags)) {
+        if (!(avctx->flags & CODEC_FLAG_BITEXACT)) {
+            c->try_8x8basis = try_8x8basis_mmx;
+        }
+        c->add_8x8basis = add_8x8basis_mmx;
+    }
+
+    if (INLINE_AMD3DNOW(cpu_flags)) {
+        if (!(avctx->flags & CODEC_FLAG_BITEXACT)) {
+            c->try_8x8basis = try_8x8basis_3dnow;
+        }
+        c->add_8x8basis = add_8x8basis_3dnow;
+    }
+
+#if HAVE_SSSE3_INLINE
+    if (INLINE_SSSE3(cpu_flags)) {
+        if (!(avctx->flags & CODEC_FLAG_BITEXACT)) {
+            c->try_8x8basis = try_8x8basis_ssse3;
+        }
+        c->add_8x8basis = add_8x8basis_ssse3;
+    }
+#endif /* HAVE_SSSE3_INLINE */
+
+#endif /* HAVE_INLINE_ASM */
+}