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- ;*****************************************************************************
- ;* SSE2-optimized weighted prediction code
- ;*****************************************************************************
- ;* Copyright (c) 2004-2005 Michael Niedermayer, Loren Merritt
- ;* Copyright (C) 2010 Eli Friedman <eli.friedman@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
- ;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- ;******************************************************************************
-
- %include "x86inc.asm"
-
- SECTION .text
- INIT_XMM
-
- ;-----------------------------------------------------------------------------
- ; biweight pred:
- ;
- ; void h264_biweight_16x16_sse2(uint8_t *dst, uint8_t *src, int stride,
- ; int log2_denom, int weightd, int weights,
- ; int offset);
- ;-----------------------------------------------------------------------------
-
- %macro BIWEIGHT_SSE2_SETUP 0
- add r6, 1
- or r6, 1
- add r3, 1
- movd m3, r4
- movd m4, r5
- movd m5, r6
- movd m6, r3
- pslld m5, m6
- psrld m5, 1
- pshuflw m3, m3, 0
- pshuflw m4, m4, 0
- pshuflw m5, m5, 0
- punpcklqdq m3, m3
- punpcklqdq m4, m4
- punpcklqdq m5, m5
- pxor m7, m7
- %endmacro
-
- %macro BIWEIGHT_SSE2_STEPA 3
- movh m%1, [r0+%3]
- movh m%2, [r1+%3]
- punpcklbw m%1, m7
- punpcklbw m%2, m7
- pmullw m%1, m3
- pmullw m%2, m4
- paddsw m%1, m%2
- %endmacro
-
- %macro BIWEIGHT_SSE2_STEPB 0
- paddsw m0, m5
- paddsw m1, m5
- psraw m0, m6
- psraw m1, m6
- packuswb m0, m1
- %endmacro
-
- cglobal h264_biweight_16x16_sse2, 7, 7, 8
- BIWEIGHT_SSE2_SETUP
- mov r3, 16
-
- .nextrow
- BIWEIGHT_SSE2_STEPA 0, 1, 0
- BIWEIGHT_SSE2_STEPA 1, 2, 8
- BIWEIGHT_SSE2_STEPB
- mova [r0], m0
- add r0, r2
- add r1, r2
- dec r3
- jnz .nextrow
- REP_RET
-
- cglobal h264_biweight_8x8_sse2, 7, 7, 8
- BIWEIGHT_SSE2_SETUP
- mov r3, 4
- lea r4, [r2*2]
-
- .nextrow
- BIWEIGHT_SSE2_STEPA 0, 1, 0
- BIWEIGHT_SSE2_STEPA 1, 2, r2
- BIWEIGHT_SSE2_STEPB
- movh [r0], m0
- movhps [r0+r2], m0
- add r0, r4
- add r1, r4
- dec r3
- jnz .nextrow
- REP_RET
-
- %macro BIWEIGHT_SSSE3_SETUP 0
- add r6, 1
- or r6, 1
- add r3, 1
- movd m4, r4
- movd m0, r5
- movd m5, r6
- movd m6, r3
- pslld m5, m6
- psrld m5, 1
- punpcklbw m4, m0
- pshuflw m4, m4, 0
- pshuflw m5, m5, 0
- punpcklqdq m4, m4
- punpcklqdq m5, m5
- %endmacro
-
- %macro BIWEIGHT_SSSE3_OP 0
- pmaddubsw m0, m4
- pmaddubsw m2, m4
- paddsw m0, m5
- paddsw m2, m5
- psraw m0, m6
- psraw m2, m6
- packuswb m0, m2
- %endmacro
-
- cglobal h264_biweight_16x16_ssse3, 7, 7, 8
- BIWEIGHT_SSSE3_SETUP
- mov r3, 16
-
- .nextrow
- movh m0, [r0]
- movh m2, [r0+8]
- movh m3, [r1+8]
- punpcklbw m0, [r1]
- punpcklbw m2, m3
- BIWEIGHT_SSSE3_OP
- mova [r0], m0
- add r0, r2
- add r1, r2
- dec r3
- jnz .nextrow
- REP_RET
-
- cglobal h264_biweight_8x8_ssse3, 7, 7, 8
- BIWEIGHT_SSSE3_SETUP
- mov r3, 4
- lea r4, [r2*2]
-
- .nextrow
- movh m0, [r0]
- movh m1, [r1]
- movh m2, [r0+r2]
- movh m3, [r1+r2]
- punpcklbw m0, m1
- punpcklbw m2, m3
- BIWEIGHT_SSSE3_OP
- movh [r0], m0
- movhps [r0+r2], m0
- add r0, r4
- add r1, r4
- dec r3
- jnz .nextrow
- REP_RET
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