ffmpeg-2.8.5

git-svn-id: svn://kolibrios.org@6147 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/x86/svq1enc.asm

@@ -0,0 +1,61 @@
+;******************************************************************************
+;* SIMD-optimized SVQ1 encoder functions
+;* Copyright (c) 2007 Loren Merritt
+;*
+;* 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/x86util.asm"
+
+SECTION .text
+
+%macro SSD_INT8_VS_INT16 0
+cglobal ssd_int8_vs_int16, 3, 3, 3, pix1, pix2, size
+    pxor m0, m0
+.loop:
+    sub       sizeq, 8
+    movq      m1, [pix1q + sizeq]
+    mova      m2, [pix2q + sizeq*2]
+%if mmsize == 8
+    movq      m3, [pix2q + sizeq*2 + mmsize]
+    punpckhbw m4, m1
+    punpcklbw m1, m1
+    psraw     m4, 8
+    psraw     m1, 8
+    psubw     m3, m4
+    psubw     m2, m1
+    pmaddwd   m3, m3
+    pmaddwd   m2, m2
+    paddd     m0, m3
+    paddd     m0, m2
+%else
+    punpcklbw m1, m1
+    psraw     m1, 8
+    psubw     m2, m1
+    pmaddwd   m2, m2
+    paddd     m0, m2
+%endif
+    jg .loop
+    HADDD     m0, m1
+    movd     eax, m0
+    RET
+%endmacro
+
+INIT_MMX mmx
+SSD_INT8_VS_INT16
+INIT_XMM sse2
+SSD_INT8_VS_INT16