ref: 54c24dfd604ee9765bb305b610bae8e045f30391
dir: /codec/decoder/core/x86/dct.asm/
;*! ;* \copy ;* Copyright (c) 2009-2013, Cisco Systems ;* All rights reserved. ;* ;* Redistribution and use in source and binary forms, with or without ;* modification, are permitted provided that the following conditions ;* are met: ;* ;* ?Redistributions of source code must retain the above copyright ;* notice, this list of conditions and the following disclaimer. ;* ;* ?Redistributions in binary form must reproduce the above copyright ;* notice, this list of conditions and the following disclaimer in ;* the documentation and/or other materials provided with the ;* distribution. ;* ;* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ;* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ;* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS ;* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ;* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, ;* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, ;* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; ;* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER ;* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT ;* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ;* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE ;* POSSIBILITY OF SUCH DAMAGE. ;* ;* ;* dct.asm ;* ;* Abstract ;* WelsDctFourT4_sse2 ;* ;* History ;* 8/4/2009 Created ;* ;* ;*************************************************************************/ %include "asm_inc.asm" ;******************************************************************************* ; Macros and other preprocessor constants ;******************************************************************************* %macro MMX_SumSubDiv2 3 movq %3, %2 psraw %3, $01 paddw %3, %1 psraw %1, $01 psubw %1, %2 %endmacro %macro MMX_SumSub 3 movq %3, %2 psubw %2, %1 paddw %1, %3 %endmacro %macro MMX_IDCT 6 MMX_SumSub %4, %5, %6 MMX_SumSubDiv2 %3, %2, %1 MMX_SumSub %1, %4, %6 MMX_SumSub %3, %5, %6 %endmacro %macro MMX_StoreDiff4P 5 movd %2, %5 punpcklbw %2, %4 paddw %1, %3 psraw %1, $06 paddsw %1, %2 packuswb %1, %2 movd %5, %1 %endmacro ;******************************************************************************* ; Code ;******************************************************************************* SECTION .text ;******************************************************************************* ; void IdctResAddPred_mmx( uint8_t *pPred, const int32_t kiStride, int16_t *pRs ) ;******************************************************************************* WELS_EXTERN IdctResAddPred_mmx %assign push_num 0 LOAD_3_PARA SIGN_EXTENSION r1, r1d movq mm0, [r2+ 0] movq mm1, [r2+ 8] movq mm2, [r2+16] movq mm3, [r2+24] MMX_Trans4x4W mm0, mm1, mm2, mm3, mm4 MMX_IDCT mm1, mm2, mm3, mm4, mm0, mm6 MMX_Trans4x4W mm1, mm3, mm0, mm4, mm2 MMX_IDCT mm3, mm0, mm4, mm2, mm1, mm6 WELS_Zero mm7 WELS_DW32 mm6 MMX_StoreDiff4P mm3, mm0, mm6, mm7, [r0] MMX_StoreDiff4P mm4, mm0, mm6, mm7, [r0+r1] lea r0, [r0+2*r1] MMX_StoreDiff4P mm1, mm0, mm6, mm7, [r0] MMX_StoreDiff4P mm2, mm0, mm6, mm7, [r0+r1] emms ret