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FFmpeg/libavcodec/x86/dsputil_h264_template_ssse3.c

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/*
* Copyright (c) 2008 Loren Merritt
*
* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* SSSE3 optimized version of (put|avg)_h264_chroma_mc8.
* H264_CHROMA_MC8_TMPL must be defined to the desired function name
* H264_CHROMA_MC8_MV0 must be defined to a (put|avg)_pixels8 function
* AVG_OP must be defined to empty for put and the identify for avg
*/
static void H264_CHROMA_MC8_TMPL(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y, int rnd)
{
if(y==0 && x==0) {
/* no filter needed */
H264_CHROMA_MC8_MV0(dst, src, stride, h);
return;
}
assert(x<8 && y<8 && x>=0 && y>=0);
if(y==0 || x==0)
{
/* 1 dimensional filter only */
__asm__ volatile(
"movd %0, %%xmm7 \n\t"
"movq %1, %%xmm6 \n\t"
"pshuflw $0, %%xmm7, %%xmm7 \n\t"
"movlhps %%xmm6, %%xmm6 \n\t"
"movlhps %%xmm7, %%xmm7 \n\t"
:: "r"(255*(x+y)+8), "m"(*(rnd?&ff_pw_4:&ff_pw_3))
);
if(x) {
__asm__ volatile(
"1: \n\t"
"movq (%1), %%xmm0 \n\t"
"movq 1(%1), %%xmm1 \n\t"
"movq (%1,%3), %%xmm2 \n\t"
"movq 1(%1,%3), %%xmm3 \n\t"
"punpcklbw %%xmm1, %%xmm0 \n\t"
"punpcklbw %%xmm3, %%xmm2 \n\t"
"pmaddubsw %%xmm7, %%xmm0 \n\t"
"pmaddubsw %%xmm7, %%xmm2 \n\t"
AVG_OP("movq (%0), %%xmm4 \n\t")
AVG_OP("movhps (%0,%3), %%xmm4 \n\t")
"paddw %%xmm6, %%xmm0 \n\t"
"paddw %%xmm6, %%xmm2 \n\t"
"psrlw $3, %%xmm0 \n\t"
"psrlw $3, %%xmm2 \n\t"
"packuswb %%xmm2, %%xmm0 \n\t"
AVG_OP("pavgb %%xmm4, %%xmm0 \n\t")
"movq %%xmm0, (%0) \n\t"
"movhps %%xmm0, (%0,%3) \n\t"
"sub $2, %2 \n\t"
"lea (%1,%3,2), %1 \n\t"
"lea (%0,%3,2), %0 \n\t"
"jg 1b \n\t"
:"+r"(dst), "+r"(src), "+r"(h)
:"r"((x86_reg)stride)
);
} else {
__asm__ volatile(
"1: \n\t"
"movq (%1), %%xmm0 \n\t"
"movq (%1,%3), %%xmm1 \n\t"
"movdqa %%xmm1, %%xmm2 \n\t"
"movq (%1,%3,2), %%xmm3 \n\t"
"punpcklbw %%xmm1, %%xmm0 \n\t"
"punpcklbw %%xmm3, %%xmm2 \n\t"
"pmaddubsw %%xmm7, %%xmm0 \n\t"
"pmaddubsw %%xmm7, %%xmm2 \n\t"
AVG_OP("movq (%0), %%xmm4 \n\t")
AVG_OP("movhps (%0,%3), %%xmm4 \n\t")
"paddw %%xmm6, %%xmm0 \n\t"
"paddw %%xmm6, %%xmm2 \n\t"
"psrlw $3, %%xmm0 \n\t"
"psrlw $3, %%xmm2 \n\t"
"packuswb %%xmm2, %%xmm0 \n\t"
AVG_OP("pavgb %%xmm4, %%xmm0 \n\t")
"movq %%xmm0, (%0) \n\t"
"movhps %%xmm0, (%0,%3) \n\t"
"sub $2, %2 \n\t"
"lea (%1,%3,2), %1 \n\t"
"lea (%0,%3,2), %0 \n\t"
"jg 1b \n\t"
:"+r"(dst), "+r"(src), "+r"(h)
:"r"((x86_reg)stride)
);
}
return;
}
/* general case, bilinear */
__asm__ volatile(
"movd %0, %%xmm7 \n\t"
"movd %1, %%xmm6 \n\t"
"movdqa %2, %%xmm5 \n\t"
"pshuflw $0, %%xmm7, %%xmm7 \n\t"
"pshuflw $0, %%xmm6, %%xmm6 \n\t"
"movlhps %%xmm7, %%xmm7 \n\t"
"movlhps %%xmm6, %%xmm6 \n\t"
:: "r"((x*255+8)*(8-y)), "r"((x*255+8)*y), "m"(*(rnd?&ff_pw_32:&ff_pw_28))
);
__asm__ volatile(
"movq (%1), %%xmm0 \n\t"
"movq 1(%1), %%xmm1 \n\t"
"punpcklbw %%xmm1, %%xmm0 \n\t"
"add %3, %1 \n\t"
"1: \n\t"
"movq (%1), %%xmm1 \n\t"
"movq 1(%1), %%xmm2 \n\t"
"movq (%1,%3), %%xmm3 \n\t"
"movq 1(%1,%3), %%xmm4 \n\t"
"lea (%1,%3,2), %1 \n\t"
"punpcklbw %%xmm2, %%xmm1 \n\t"
"punpcklbw %%xmm4, %%xmm3 \n\t"
"movdqa %%xmm1, %%xmm2 \n\t"
"movdqa %%xmm3, %%xmm4 \n\t"
"pmaddubsw %%xmm7, %%xmm0 \n\t"
"pmaddubsw %%xmm6, %%xmm1 \n\t"
"pmaddubsw %%xmm7, %%xmm2 \n\t"
"pmaddubsw %%xmm6, %%xmm3 \n\t"
"paddw %%xmm5, %%xmm0 \n\t"
"paddw %%xmm5, %%xmm2 \n\t"
"paddw %%xmm0, %%xmm1 \n\t"
"paddw %%xmm2, %%xmm3 \n\t"
"movdqa %%xmm4, %%xmm0 \n\t"
"psrlw $6, %%xmm1 \n\t"
"psrlw $6, %%xmm3 \n\t"
AVG_OP("movq (%0), %%xmm2 \n\t")
AVG_OP("movhps (%0,%3), %%xmm2 \n\t")
"packuswb %%xmm3, %%xmm1 \n\t"
AVG_OP("pavgb %%xmm2, %%xmm1 \n\t")
"movq %%xmm1, (%0)\n\t"
"movhps %%xmm1, (%0,%3)\n\t"
"sub $2, %2 \n\t"
"lea (%0,%3,2), %0 \n\t"
"jg 1b \n\t"
:"+r"(dst), "+r"(src), "+r"(h)
:"r"((x86_reg)stride)
);
}
static void H264_CHROMA_MC4_TMPL(uint8_t *dst/*align 4*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
{
__asm__ volatile(
"movd %0, %%mm7 \n\t"
"movd %1, %%mm6 \n\t"
"movq %2, %%mm5 \n\t"
"pshufw $0, %%mm7, %%mm7 \n\t"
"pshufw $0, %%mm6, %%mm6 \n\t"
:: "r"((x*255+8)*(8-y)), "r"((x*255+8)*y), "m"(ff_pw_32)
);
__asm__ volatile(
"movd (%1), %%mm0 \n\t"
"punpcklbw 1(%1), %%mm0 \n\t"
"add %3, %1 \n\t"
"1: \n\t"
"movd (%1), %%mm1 \n\t"
"movd (%1,%3), %%mm3 \n\t"
"punpcklbw 1(%1), %%mm1 \n\t"
"punpcklbw 1(%1,%3), %%mm3 \n\t"
"lea (%1,%3,2), %1 \n\t"
"movq %%mm1, %%mm2 \n\t"
"movq %%mm3, %%mm4 \n\t"
"pmaddubsw %%mm7, %%mm0 \n\t"
"pmaddubsw %%mm6, %%mm1 \n\t"
"pmaddubsw %%mm7, %%mm2 \n\t"
"pmaddubsw %%mm6, %%mm3 \n\t"
"paddw %%mm5, %%mm0 \n\t"
"paddw %%mm5, %%mm2 \n\t"
"paddw %%mm0, %%mm1 \n\t"
"paddw %%mm2, %%mm3 \n\t"
"movq %%mm4, %%mm0 \n\t"
"psrlw $6, %%mm1 \n\t"
"psrlw $6, %%mm3 \n\t"
"packuswb %%mm1, %%mm1 \n\t"
"packuswb %%mm3, %%mm3 \n\t"
AVG_OP("pavgb (%0), %%mm1 \n\t")
AVG_OP("pavgb (%0,%3), %%mm3 \n\t")
"movd %%mm1, (%0)\n\t"
"movd %%mm3, (%0,%3)\n\t"
"sub $2, %2 \n\t"
"lea (%0,%3,2), %0 \n\t"
"jg 1b \n\t"
:"+r"(dst), "+r"(src), "+r"(h)
:"r"((x86_reg)stride)
);
}