4b6ffc2880
The only systems which benefit from these are truely ancient 32bit x86s as all other systems use at least the SSE2 versions (this includes all x64 cpus (which is why this code is restricted to x86-32)). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
144 lines
3.8 KiB
NASM
144 lines
3.8 KiB
NASM
;******************************************************************************
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;* SIMD-optimized HuffYUV functions
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;* Copyright (c) 2008 Loren Merritt
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;* Copyright (c) 2014 Christophe Gisquet
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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SECTION .text
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%include "libavcodec/x86/huffyuvdsp_template.asm"
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;------------------------------------------------------------------------------
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; void (*add_int16)(uint16_t *dst, const uint16_t *src, unsigned mask, int w);
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;------------------------------------------------------------------------------
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%macro ADD_INT16 0
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cglobal add_int16, 4,4,5, dst, src, mask, w, tmp
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test srcq, mmsize-1
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jnz .unaligned
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test dstq, mmsize-1
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jnz .unaligned
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INT16_LOOP a, add
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.unaligned:
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INT16_LOOP u, add
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%endmacro
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INIT_XMM sse2
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ADD_INT16
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%if HAVE_AVX2_EXTERNAL
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INIT_YMM avx2
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ADD_INT16
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%endif
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; void add_hfyu_left_pred_bgr32(uint8_t *dst, const uint8_t *src,
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; intptr_t w, uint8_t *left)
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INIT_XMM sse2
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cglobal add_hfyu_left_pred_bgr32, 4,4,3, dst, src, w, left
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shl wq, 2
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movd m0, [leftq]
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lea dstq, [dstq + wq]
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lea srcq, [srcq + wq]
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LSHIFT m0, mmsize-4
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neg wq
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.loop:
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movu m1, [srcq+wq]
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mova m2, m1
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LSHIFT m1, 4
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paddb m1, m2
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pshufd m0, m0, q3333
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mova m2, m1
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LSHIFT m1, 8
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paddb m1, m2
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paddb m0, m1
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movu [dstq+wq], m0
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add wq, mmsize
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jl .loop
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movd m0, [dstq-4]
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movd [leftq], m0
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REP_RET
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; void add_hfyu_median_prediction_mmxext(uint8_t *dst, const uint8_t *top, const uint8_t *diff, int mask, int w, int *left, int *left_top)
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INIT_MMX mmxext
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cglobal add_hfyu_median_pred_int16, 7,7,0, dst, top, diff, mask, w, left, left_top
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add wd, wd
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movd mm6, maskd
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SPLATW mm6, mm6
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movq mm0, [topq]
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movq mm2, mm0
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movd mm4, [left_topq]
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psllq mm2, 16
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movq mm1, mm0
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por mm4, mm2
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movd mm3, [leftq]
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psubw mm0, mm4 ; t-tl
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add dstq, wq
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add topq, wq
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add diffq, wq
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neg wq
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jmp .skip
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.loop:
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movq mm4, [topq+wq]
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movq mm0, mm4
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psllq mm4, 16
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por mm4, mm1
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movq mm1, mm0 ; t
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psubw mm0, mm4 ; t-tl
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.skip:
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movq mm2, [diffq+wq]
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%assign i 0
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%rep 4
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movq mm4, mm0
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paddw mm4, mm3 ; t-tl+l
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pand mm4, mm6
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movq mm5, mm3
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pmaxsw mm3, mm1
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pminsw mm5, mm1
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pminsw mm3, mm4
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pmaxsw mm3, mm5 ; median
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paddw mm3, mm2 ; +residual
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pand mm3, mm6
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%if i==0
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movq mm7, mm3
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psllq mm7, 48
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%else
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movq mm4, mm3
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psrlq mm7, 16
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psllq mm4, 48
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por mm7, mm4
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%endif
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%if i<3
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psrlq mm0, 16
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psrlq mm1, 16
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psrlq mm2, 16
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%endif
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%assign i i+1
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%endrep
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movq [dstq+wq], mm7
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add wq, 8
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jl .loop
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movzx r2d, word [dstq-2]
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mov [leftq], r2d
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movzx r2d, word [topq-2]
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mov [left_topq], r2d
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RET
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