Merge commit '1a8d0cf77ed2611e542ae98f341d4c43a04467bd'

* commit '1a8d0cf77ed2611e542ae98f341d4c43a04467bd':
  x86: dsputil: Move inline assembly macros to a separate header

Conflicts:
	libavcodec/x86/dsputil_mmx.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 100 insertions, 0 deletions

diff --git a/libavcodec/x86/inline_asm.h b/libavcodec/x86/inline_asm.h
new file mode 100644
index 0000000000..c2f1bf0f9c
--- /dev/null
+++ b/libavcodec/x86/inline_asm.h
@@ -0,0 +1,100 @@
+/*
+ * inline assembly helper macros
+ *
+ * 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
+ */
+
+#ifndef AVCODEC_X86_INLINE_ASM_H
+#define AVCODEC_X86_INLINE_ASM_H
+
+#include "constants.h"
+
+#define MOVQ_WONE(regd) \
+    __asm__ volatile ( \
+    "pcmpeqd %%" #regd ", %%" #regd " \n\t" \
+    "psrlw $15, %%" #regd ::)
+
+#define JUMPALIGN()     __asm__ volatile (".p2align 3"::)
+#define MOVQ_ZERO(regd) __asm__ volatile ("pxor %%"#regd", %%"#regd ::)
+
+#define MOVQ_BFE(regd)                                  \
+    __asm__ volatile (                                  \
+        "pcmpeqd %%"#regd", %%"#regd"   \n\t"           \
+        "paddb   %%"#regd", %%"#regd"   \n\t" ::)
+
+#ifndef PIC
+#define MOVQ_WTWO(regd) __asm__ volatile ("movq %0, %%"#regd" \n\t" :: "m"(ff_wtwo))
+#else
+// for shared library it's better to use this way for accessing constants
+// pcmpeqd -> -1
+#define MOVQ_WTWO(regd)                                 \
+    __asm__ volatile (                                  \
+        "pcmpeqd %%"#regd", %%"#regd"   \n\t"           \
+        "psrlw         $15, %%"#regd"   \n\t"           \
+        "psllw          $1, %%"#regd"   \n\t"::)
+
+#endif
+
+// using regr as temporary and for the output result
+// first argument is unmodifed and second is trashed
+// regfe is supposed to contain 0xfefefefefefefefe
+#define PAVGB_MMX_NO_RND(rega, regb, regr, regfe)                \
+    "movq   "#rega", "#regr"            \n\t"                    \
+    "pand   "#regb", "#regr"            \n\t"                    \
+    "pxor   "#rega", "#regb"            \n\t"                    \
+    "pand  "#regfe", "#regb"            \n\t"                    \
+    "psrlq       $1, "#regb"            \n\t"                    \
+    "paddb  "#regb", "#regr"            \n\t"
+
+#define PAVGB_MMX(rega, regb, regr, regfe)                       \
+    "movq   "#rega", "#regr"            \n\t"                    \
+    "por    "#regb", "#regr"            \n\t"                    \
+    "pxor   "#rega", "#regb"            \n\t"                    \
+    "pand  "#regfe", "#regb"            \n\t"                    \
+    "psrlq       $1, "#regb"            \n\t"                    \
+    "psubb  "#regb", "#regr"            \n\t"
+
+// mm6 is supposed to contain 0xfefefefefefefefe
+#define PAVGBP_MMX_NO_RND(rega, regb, regr,  regc, regd, regp)   \
+    "movq  "#rega", "#regr"             \n\t"                    \
+    "movq  "#regc", "#regp"             \n\t"                    \
+    "pand  "#regb", "#regr"             \n\t"                    \
+    "pand  "#regd", "#regp"             \n\t"                    \
+    "pxor  "#rega", "#regb"             \n\t"                    \
+    "pxor  "#regc", "#regd"             \n\t"                    \
+    "pand    %%mm6, "#regb"             \n\t"                    \
+    "pand    %%mm6, "#regd"             \n\t"                    \
+    "psrlq      $1, "#regb"             \n\t"                    \
+    "psrlq      $1, "#regd"             \n\t"                    \
+    "paddb "#regb", "#regr"             \n\t"                    \
+    "paddb "#regd", "#regp"             \n\t"
+
+#define PAVGBP_MMX(rega, regb, regr, regc, regd, regp)           \
+    "movq  "#rega", "#regr"             \n\t"                    \
+    "movq  "#regc", "#regp"             \n\t"                    \
+    "por   "#regb", "#regr"             \n\t"                    \
+    "por   "#regd", "#regp"             \n\t"                    \
+    "pxor  "#rega", "#regb"             \n\t"                    \
+    "pxor  "#regc", "#regd"             \n\t"                    \
+    "pand    %%mm6, "#regb"             \n\t"                    \
+    "pand    %%mm6, "#regd"             \n\t"                    \
+    "psrlq      $1, "#regd"             \n\t"                    \
+    "psrlq      $1, "#regb"             \n\t"                    \
+    "psubb "#regb", "#regr"             \n\t"                    \
+    "psubb "#regd", "#regp"             \n\t"
+
+#endif /* AVCODEC_X86_INLINE_ASM_H */