Add m-esr52 at 52.6.0

1 files changed, 48 insertions, 0 deletions

diff --git a/media/ffvpx/libavutil/x86/fixed_dsp.asm b/media/ffvpx/libavutil/x86/fixed_dsp.asm
new file mode 100644
index 000000000..979dd5c33
--- /dev/null
+++ b/media/ffvpx/libavutil/x86/fixed_dsp.asm
@@ -0,0 +1,48 @@
+;*****************************************************************************
+;* x86-optimized Float DSP functions
+;*
+;* Copyright 2016 James Almer
+;*
+;* 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 "x86util.asm"
+
+SECTION .text
+
+;-----------------------------------------------------------------------------
+; void ff_butterflies_fixed(float *src0, float *src1, int len);
+;-----------------------------------------------------------------------------
+INIT_XMM sse2
+cglobal butterflies_fixed, 3,3,3, src0, src1, len
+    shl       lend, 2
+    add      src0q, lenq
+    add      src1q, lenq
+    neg       lenq
+
+align 16
+.loop:
+    mova        m0, [src0q + lenq]
+    mova        m1, [src1q + lenq]
+    mova        m2, m0
+    paddd       m0, m1
+    psubd       m2, m1
+    mova        [src0q + lenq], m0
+    mova        [src1q + lenq], m2
+    add       lenq, mmsize
+    jl .loop
+    RET