From 150c9823e71a161e97003849cf8b2f55b21520bd Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Mon, 26 Aug 2013 15:10:18 +0100
Subject: adding ffmpeg specific version

---
 ffmpeg1/libavcodec/x86/h264_weight_10bit.asm | 282 +++++++++++++++++++++++++++
 1 file changed, 282 insertions(+)
 create mode 100644 ffmpeg1/libavcodec/x86/h264_weight_10bit.asm

(limited to 'ffmpeg1/libavcodec/x86/h264_weight_10bit.asm')

diff --git a/ffmpeg1/libavcodec/x86/h264_weight_10bit.asm b/ffmpeg1/libavcodec/x86/h264_weight_10bit.asm
new file mode 100644
index 0000000..3b09e42
--- /dev/null
+++ b/ffmpeg1/libavcodec/x86/h264_weight_10bit.asm
@@ -0,0 +1,282 @@
+;*****************************************************************************
+;* MMX/SSE2/AVX-optimized 10-bit H.264 weighted prediction code
+;*****************************************************************************
+;* Copyright (C) 2005-2011 x264 project
+;*
+;* Authors: Daniel Kang <daniel.d.kang@gmail.com>
+;*
+;* This file is part of Libav.
+;*
+;* Libav 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.
+;*
+;* Libav 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 Libav; 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 32
+
+pw_pixel_max: times 8 dw ((1 << 10)-1)
+sq_1: dq 1
+      dq 0
+
+cextern pw_1
+
+SECTION .text
+
+;-----------------------------------------------------------------------------
+; void h264_weight(uint8_t *dst, int stride, int height, int log2_denom,
+;                  int weight, int offset);
+;-----------------------------------------------------------------------------
+%macro WEIGHT_PROLOGUE 0
+.prologue:
+    PROLOGUE 0,6,8
+    movifnidn  r0, r0mp
+    movifnidn r1d, r1m
+    movifnidn r2d, r2m
+    movifnidn r4d, r4m
+    movifnidn r5d, r5m
+%endmacro
+
+%macro WEIGHT_SETUP 0
+    mova       m0, [pw_1]
+    movd       m2, r3m
+    pslld      m0, m2       ; 1<<log2_denom
+    SPLATW     m0, m0
+    shl        r5, 19       ; *8, move to upper half of dword
+    lea        r5, [r5+r4*2+0x10000]
+    movd       m3, r5d      ; weight<<1 | 1+(offset<<(3))
+    pshufd     m3, m3, 0
+    mova       m4, [pw_pixel_max]
+    paddw      m2, [sq_1]   ; log2_denom+1
+%if notcpuflag(sse4)
+    pxor       m7, m7
+%endif
+%endmacro
+
+%macro WEIGHT_OP 1-2
+%if %0==1
+    mova        m5, [r0+%1]
+    punpckhwd   m6, m5, m0
+    punpcklwd   m5, m0
+%else
+    movq        m5, [r0+%1]
+    movq        m6, [r0+%2]
+    punpcklwd   m5, m0
+    punpcklwd   m6, m0
+%endif
+    pmaddwd     m5, m3
+    pmaddwd     m6, m3
+    psrad       m5, m2
+    psrad       m6, m2
+%if cpuflag(sse4)
+    packusdw    m5, m6
+    pminsw      m5, m4
+%else
+    packssdw    m5, m6
+    CLIPW       m5, m7, m4
+%endif
+%endmacro
+
+%macro WEIGHT_FUNC_DBL 0
+cglobal h264_weight_16_10
+    WEIGHT_PROLOGUE
+    WEIGHT_SETUP
+.nextrow:
+    WEIGHT_OP  0
+    mova [r0   ], m5
+    WEIGHT_OP 16
+    mova [r0+16], m5
+    add       r0, r1
+    dec       r2d
+    jnz .nextrow
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+WEIGHT_FUNC_DBL
+INIT_XMM sse4
+WEIGHT_FUNC_DBL
+
+
+%macro WEIGHT_FUNC_MM 0
+cglobal h264_weight_8_10
+    WEIGHT_PROLOGUE
+    WEIGHT_SETUP
+.nextrow:
+    WEIGHT_OP   0
+    mova     [r0], m5
+    add        r0, r1
+    dec        r2d
+    jnz .nextrow
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+WEIGHT_FUNC_MM
+INIT_XMM sse4
+WEIGHT_FUNC_MM
+
+
+%macro WEIGHT_FUNC_HALF_MM 0
+cglobal h264_weight_4_10
+    WEIGHT_PROLOGUE
+    sar         r2d, 1
+    WEIGHT_SETUP
+    lea         r3, [r1*2]
+.nextrow:
+    WEIGHT_OP    0, r1
+    movh      [r0], m5
+    movhps [r0+r1], m5
+    add         r0, r3
+    dec         r2d
+    jnz .nextrow
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+WEIGHT_FUNC_HALF_MM
+INIT_XMM sse4
+WEIGHT_FUNC_HALF_MM
+
+
+;-----------------------------------------------------------------------------
+; void h264_biweight(uint8_t *dst, uint8_t *src, int stride, int height,
+;                    int log2_denom, int weightd, int weights, int offset);
+;-----------------------------------------------------------------------------
+%if ARCH_X86_32
+DECLARE_REG_TMP 3
+%else
+DECLARE_REG_TMP 7
+%endif
+
+%macro BIWEIGHT_PROLOGUE 0
+.prologue:
+    PROLOGUE 0,8,8
+    movifnidn  r0, r0mp
+    movifnidn  r1, r1mp
+    movifnidn r2d, r2m
+    movifnidn r5d, r5m
+    movifnidn r6d, r6m
+    movifnidn t0d, r7m
+%endmacro
+
+%macro BIWEIGHT_SETUP 0
+    lea        t0, [t0*4+1] ; (offset<<2)+1
+    or         t0, 1
+    shl        r6, 16
+    or         r5, r6
+    movd       m4, r5d      ; weightd | weights
+    movd       m5, t0d      ; (offset+1)|1
+    movd       m6, r4m      ; log2_denom
+    pslld      m5, m6       ; (((offset<<2)+1)|1)<<log2_denom
+    paddd      m6, [sq_1]
+    pshufd     m4, m4, 0
+    pshufd     m5, m5, 0
+    mova       m3, [pw_pixel_max]
+    movifnidn r3d, r3m
+%if notcpuflag(sse4)
+    pxor       m7, m7
+%endif
+%endmacro
+
+%macro BIWEIGHT 1-2
+%if %0==1
+    mova       m0, [r0+%1]
+    mova       m1, [r1+%1]
+    punpckhwd  m2, m0, m1
+    punpcklwd  m0, m1
+%else
+    movq       m0, [r0+%1]
+    movq       m1, [r1+%1]
+    punpcklwd  m0, m1
+    movq       m2, [r0+%2]
+    movq       m1, [r1+%2]
+    punpcklwd  m2, m1
+%endif
+    pmaddwd    m0, m4
+    pmaddwd    m2, m4
+    paddd      m0, m5
+    paddd      m2, m5
+    psrad      m0, m6
+    psrad      m2, m6
+%if cpuflag(sse4)
+    packusdw   m0, m2
+    pminsw     m0, m3
+%else
+    packssdw   m0, m2
+    CLIPW      m0, m7, m3
+%endif
+%endmacro
+
+%macro BIWEIGHT_FUNC_DBL 0
+cglobal h264_biweight_16_10
+    BIWEIGHT_PROLOGUE
+    BIWEIGHT_SETUP
+.nextrow:
+    BIWEIGHT   0
+    mova [r0   ], m0
+    BIWEIGHT  16
+    mova [r0+16], m0
+    add       r0, r2
+    add       r1, r2
+    dec       r3d
+    jnz .nextrow
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+BIWEIGHT_FUNC_DBL
+INIT_XMM sse4
+BIWEIGHT_FUNC_DBL
+
+%macro BIWEIGHT_FUNC 0
+cglobal h264_biweight_8_10
+    BIWEIGHT_PROLOGUE
+    BIWEIGHT_SETUP
+.nextrow:
+    BIWEIGHT  0
+    mova   [r0], m0
+    add      r0, r2
+    add      r1, r2
+    dec      r3d
+    jnz .nextrow
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+BIWEIGHT_FUNC
+INIT_XMM sse4
+BIWEIGHT_FUNC
+
+%macro BIWEIGHT_FUNC_HALF 0
+cglobal h264_biweight_4_10
+    BIWEIGHT_PROLOGUE
+    BIWEIGHT_SETUP
+    sar        r3d, 1
+    lea        r4, [r2*2]
+.nextrow:
+    BIWEIGHT     0, r2
+    movh   [r0   ], m0
+    movhps [r0+r2], m0
+    add         r0, r4
+    add         r1, r4
+    dec         r3d
+    jnz .nextrow
+    REP_RET
+%endmacro
+
+INIT_XMM sse2
+BIWEIGHT_FUNC_HALF
+INIT_XMM sse4
+BIWEIGHT_FUNC_HALF
-- 
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