57f6bcc4b0
Previously the assembly sources had mixed indentation consisting of both spaces and tabs, making it quite hard to read unless the right tab size was used in the editor. Tabs have been interpreted as 4 spaces in most cases, matching the surrounding code.
116 lines
3.5 KiB
NASM
116 lines
3.5 KiB
NASM
;*!
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;* \copy
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;* Copyright (c) 2009-2013, Cisco Systems
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;* All rights reserved.
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;*
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;* Redistribution and use in source and binary forms, with or without
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;* modification, are permitted provided that the following conditions
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;* are met:
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;*
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;* ?Redistributions of source code must retain the above copyright
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;* notice, this list of conditions and the following disclaimer.
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;*
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;* ?Redistributions in binary form must reproduce the above copyright
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;* notice, this list of conditions and the following disclaimer in
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;* the documentation and/or other materials provided with the
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;* distribution.
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;*
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;* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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;* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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;* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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;* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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;* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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;* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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;* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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;* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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;* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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;* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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;* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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;* POSSIBILITY OF SUCH DAMAGE.
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;*
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;*
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;* dct.asm
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;*
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;* Abstract
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;* WelsDctFourT4_sse2
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;*
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;* History
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;* 8/4/2009 Created
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;*
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;*
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;*************************************************************************/
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%include "asm_inc.asm"
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;*******************************************************************************
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; Macros and other preprocessor constants
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;*******************************************************************************
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%macro MMX_SumSubDiv2 3
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movq %3, %2
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psraw %3, $01
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paddw %3, %1
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psraw %1, $01
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psubw %1, %2
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%endmacro
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%macro MMX_SumSub 3
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movq %3, %2
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psubw %2, %1
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paddw %1, %3
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%endmacro
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%macro MMX_IDCT 6
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MMX_SumSub %4, %5, %6
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MMX_SumSubDiv2 %3, %2, %1
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MMX_SumSub %1, %4, %6
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MMX_SumSub %3, %5, %6
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%endmacro
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%macro MMX_StoreDiff4P 5
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movd %2, %5
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punpcklbw %2, %4
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paddw %1, %3
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psraw %1, $06
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paddsw %1, %2
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packuswb %1, %2
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movd %5, %1
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%endmacro
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;*******************************************************************************
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; Code
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;*******************************************************************************
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SECTION .text
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;*******************************************************************************
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; void IdctResAddPred_mmx( uint8_t *pPred, const int32_t kiStride, int16_t *pRs )
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;*******************************************************************************
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WELS_EXTERN IdctResAddPred_mmx
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%assign push_num 0
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LOAD_3_PARA
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SIGN_EXTENSION r1, r1d
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movq mm0, [r2+ 0]
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movq mm1, [r2+ 8]
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movq mm2, [r2+16]
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movq mm3, [r2+24]
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MMX_Trans4x4W mm0, mm1, mm2, mm3, mm4
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MMX_IDCT mm1, mm2, mm3, mm4, mm0, mm6
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MMX_Trans4x4W mm1, mm3, mm0, mm4, mm2
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MMX_IDCT mm3, mm0, mm4, mm2, mm1, mm6
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WELS_Zero mm7
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WELS_DW32 mm6
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MMX_StoreDiff4P mm3, mm0, mm6, mm7, [r0]
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MMX_StoreDiff4P mm4, mm0, mm6, mm7, [r0+r1]
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lea r0, [r0+2*r1]
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MMX_StoreDiff4P mm1, mm0, mm6, mm7, [r0]
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MMX_StoreDiff4P mm2, mm0, mm6, mm7, [r0+r1]
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emms
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ret
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