1 files changed, 61 insertions, 0 deletions
diff --git a/libavcodec/x86/h264_idct_sse2.asm b/libavcodec/x86/h264_idct_sse2.asm
new file mode 100755
index 0000000000..a46cd975de
--- /dev/null
+++ b/libavcodec/x86/h264_idct_sse2.asm
@@ -0,0 +1,61 @@
+;*****************************************************************************
+;* dct-a.asm: h264 encoder library
+;*****************************************************************************
+;* Copyright (C) 2003-2008 x264 project
+;*
+;* Authors: Laurent Aimar <fenrir@via.ecp.fr>
+;*          Loren Merritt <lorenm@u.washington.edu>
+;*          Holger Lubitz <hal@duncan.ol.sub.de>
+;*          Min Chen <chenm001.163.com>
+;*
+;* This program is free software; you can redistribute it and/or modify
+;* it under the terms of the GNU General Public License as published by
+;* the Free Software Foundation; either version 2 of the License, or
+;* (at your option) any later version.
+;*
+;* This program 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 General Public License for more details.
+;*
+;* You should have received a copy of the GNU General Public License
+;* along with this program; if not, write to the Free Software
+;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
+;*****************************************************************************
+
+%include "x86inc.asm"
+%include "x86util.asm"
+
+SECTION_RODATA
+pw_32: times 8 dw 32
+
+SECTION .text
+
+%macro IDCT4_1D 6
+    SUMSUB_BA   m%3, m%1
+    SUMSUBD2_AB m%2, m%4, m%6, m%5
+    SUMSUB_BADC m%2, m%3, m%5, m%1
+    SWAP %1, %2, %5, %4, %3
+%endmacro
+
+INIT_XMM
+cglobal x264_add8x4_idct_sse2, 3,3
+    movq   m0, [r1+ 0]
+    movq   m1, [r1+ 8]
+    movq   m2, [r1+16]
+    movq   m3, [r1+24]
+    movhps m0, [r1+32]
+    movhps m1, [r1+40]
+    movhps m2, [r1+48]
+    movhps m3, [r1+56]
+    IDCT4_1D 0,1,2,3,4,5
+    TRANSPOSE2x4x4W 0,1,2,3,4
+    paddw m0, [pw_32 GLOBAL]
+    IDCT4_1D 0,1,2,3,4,5
+    pxor  m7, m7
+    STORE_DIFF  m0, m4, m7, [r0]
+    STORE_DIFF  m1, m4, m7, [r0+r2]
+    lea   r0, [r0+r2*2]
+    STORE_DIFF  m2, m4, m7, [r0]
+    STORE_DIFF  m3, m4, m7, [r0+r2]
+    RET