swr: add int16_to_int32_mmx/sse

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

1 files changed, 52 insertions, 0 deletions

diff --git a/libswresample/x86/audio_convert.asm b/libswresample/x86/audio_convert.asm
new file mode 100644
index 0000000000..c7ce8c6c53
--- /dev/null
+++ b/libswresample/x86/audio_convert.asm
@@ -0,0 +1,52 @@
+;******************************************************************************
+;* Copyright (c) 2012 Michael Niedermayer
+;*
+;* 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/x86inc.asm"
+%include "libavutil/x86/x86util.asm"
+
+SECTION .text
+
+%macro INT16_TO_INT32 0
+cglobal int16_to_int32_%1, 3, 3, 0, dst, src, len
+    mov srcq, [srcq]
+    mov dstq, [dstq]
+.next
+    movu m4, [srcq]
+    pxor m0, m0
+    pxor m1, m1
+    punpcklwd m0, m4
+    punpckhwd m1, m4
+    movu [         dstq], m0
+    movu [mmsize + dstq], m1
+    add srcq, mmsize
+    add dstq, 2*mmsize
+    sub lenq, 2*mmsize
+        jg .next
+%if mmsize == 8
+    emms
+%endif
+    REP_RET
+%endmacro
+
+INIT_MMX mmx
+INT16_TO_INT32
+
+INIT_XMM sse
+INT16_TO_INT32