openh264/codec/decoder/core/x86/dct.asm
Sindre Aamås 98042f1600 [Decoder] Use encoder x86 IDCT routines
Move asm routines to common. Delete obsolete decoder routines.

Use wider routines where applicable.

~1.07x overall faster decode on a quick 720p30 4Mbps test on Haswell.
2016-03-09 10:41:42 +01:00

73 lines
2.2 KiB
NASM

;*!
;* \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:
;*
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;* 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
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;* 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
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;* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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;*
;*
;* dct.asm
;*
;* Abstract
;* WelsDctFourT4_sse2
;*
;* History
;* 8/4/2009 Created
;*
;*
;*************************************************************************/
%include "asm_inc.asm"
SECTION .text
;void WelsBlockZero16x16_sse2(int16_t * block, int32_t stride);
WELS_EXTERN WelsBlockZero16x16_sse2
%assign push_num 0
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
shl r1, 1
pxor xmm0, xmm0
%rep 16
movdqa [r0], xmm0
movdqa [r0+16], xmm0
add r0, r1
%endrep
ret
;void WelsBlockZero8x8_sse2(int16_t * block, int32_t stride);
WELS_EXTERN WelsBlockZero8x8_sse2
%assign push_num 0
LOAD_2_PARA
SIGN_EXTENSION r1, r1d
shl r1, 1
pxor xmm0, xmm0
%rep 8
movdqa [r0], xmm0
add r0, r1
%endrep
ret