Merge commit '5b59a9fc6152169599561f04b4f66370edda5c9c'

* commit '5b59a9fc6152169599561f04b4f66370edda5c9c':
  x86: dcadsp: implement int8x8_fmul_int32

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

1 files changed, 90 insertions, 0 deletions

diff --git a/libavcodec/x86/dcadsp.asm b/libavcodec/x86/dcadsp.asm
new file mode 100644
index 0000000000..a0995c909f
--- /dev/null
+++ b/libavcodec/x86/dcadsp.asm
@@ -0,0 +1,90 @@
+;******************************************************************************
+;* SSE-optimized functions for the DCA decoder
+;* Copyright (C) 2012-2014 Christophe Gisquet <christophe.gisquet@gmail.com>
+;*
+;* 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_RODATA
+pf_inv16:  times 4 dd 0x3D800000 ; 1/16
+
+SECTION_TEXT
+
+; void int8x8_fmul_int32_sse2(float *dst, const int8_t *src, int scale)
+%macro INT8X8_FMUL_INT32 0
+cglobal int8x8_fmul_int32, 3,3,5, dst, src, scale
+    cvtsi2ss    m0, scalem
+    mulss       m0, [pf_inv16]
+    shufps      m0, m0, 0
+%if cpuflag(sse2)
+%if cpuflag(sse4)
+    pmovsxbd    m1, [srcq+0]
+    pmovsxbd    m2, [srcq+4]
+%else
+    movq        m1, [srcq]
+    punpcklbw   m1, m1
+    mova        m2, m1
+    punpcklwd   m1, m1
+    punpckhwd   m2, m2
+    psrad       m1, 24
+    psrad       m2, 24
+%endif
+    cvtdq2ps    m1, m1
+    cvtdq2ps    m2, m2
+%else
+    movd       mm0, [srcq+0]
+    movd       mm1, [srcq+4]
+    punpcklbw  mm0, mm0
+    punpcklbw  mm1, mm1
+    movq       mm2, mm0
+    movq       mm3, mm1
+    punpcklwd  mm0, mm0
+    punpcklwd  mm1, mm1
+    punpckhwd  mm2, mm2
+    punpckhwd  mm3, mm3
+    psrad      mm0, 24
+    psrad      mm1, 24
+    psrad      mm2, 24
+    psrad      mm3, 24
+    cvtpi2ps    m1, mm0
+    cvtpi2ps    m2, mm1
+    cvtpi2ps    m3, mm2
+    cvtpi2ps    m4, mm3
+    shufps      m0, m0, 0
+    emms
+    shufps      m1, m3, q1010
+    shufps      m2, m4, q1010
+%endif
+    mulps       m1, m0
+    mulps       m2, m0
+    mova [dstq+ 0], m1
+    mova [dstq+16], m2
+    REP_RET
+%endmacro
+
+%if ARCH_X86_32
+INIT_XMM sse
+INT8X8_FMUL_INT32
+%endif
+
+INIT_XMM sse2
+INT8X8_FMUL_INT32
+
+INIT_XMM sse4
+INT8X8_FMUL_INT32