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105 lines
3.9 KiB
105 lines
3.9 KiB
/* |
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* DSP utils : QNS functions are compiled 3 times for mmx/3dnow/ssse3 |
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* Copyright (c) 2004 Michael Niedermayer |
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* |
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* MMX optimization by Michael Niedermayer <michaelni@gmx.at> |
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* 3DNow! and SSSE3 optimization by Zuxy Meng <zuxy.meng@gmail.com> |
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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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/* This header intentionally has no multiple inclusion guards. It is meant to |
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* be included multiple times and generates different code depending on the |
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* value of certain #defines. */ |
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#define MAX_ABS (512 >> (SCALE_OFFSET>0 ? SCALE_OFFSET : 0)) |
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static int DEF(try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale) |
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{ |
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x86_reg i=0; |
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assert(FFABS(scale) < MAX_ABS); |
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scale<<= 16 + SCALE_OFFSET - BASIS_SHIFT + RECON_SHIFT; |
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SET_RND(mm6); |
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asm volatile( |
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"pxor %%mm7, %%mm7 \n\t" |
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"movd %4, %%mm5 \n\t" |
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"punpcklwd %%mm5, %%mm5 \n\t" |
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"punpcklwd %%mm5, %%mm5 \n\t" |
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ASMALIGN(4) |
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"1: \n\t" |
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"movq (%1, %0), %%mm0 \n\t" |
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"movq 8(%1, %0), %%mm1 \n\t" |
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PMULHRW(%%mm0, %%mm1, %%mm5, %%mm6) |
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"paddw (%2, %0), %%mm0 \n\t" |
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"paddw 8(%2, %0), %%mm1 \n\t" |
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"psraw $6, %%mm0 \n\t" |
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"psraw $6, %%mm1 \n\t" |
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"pmullw (%3, %0), %%mm0 \n\t" |
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"pmullw 8(%3, %0), %%mm1 \n\t" |
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"pmaddwd %%mm0, %%mm0 \n\t" |
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"pmaddwd %%mm1, %%mm1 \n\t" |
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"paddd %%mm1, %%mm0 \n\t" |
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"psrld $4, %%mm0 \n\t" |
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"paddd %%mm0, %%mm7 \n\t" |
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"add $16, %0 \n\t" |
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"cmp $128, %0 \n\t" //FIXME optimize & bench |
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" jb 1b \n\t" |
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PHADDD(%%mm7, %%mm6) |
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"psrld $2, %%mm7 \n\t" |
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"movd %%mm7, %0 \n\t" |
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: "+r" (i) |
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: "r"(basis), "r"(rem), "r"(weight), "g"(scale) |
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); |
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return i; |
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} |
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static void DEF(add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale) |
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{ |
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x86_reg i=0; |
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if(FFABS(scale) < MAX_ABS){ |
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scale<<= 16 + SCALE_OFFSET - BASIS_SHIFT + RECON_SHIFT; |
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SET_RND(mm6); |
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asm volatile( |
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"movd %3, %%mm5 \n\t" |
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"punpcklwd %%mm5, %%mm5 \n\t" |
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"punpcklwd %%mm5, %%mm5 \n\t" |
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ASMALIGN(4) |
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"1: \n\t" |
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"movq (%1, %0), %%mm0 \n\t" |
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"movq 8(%1, %0), %%mm1 \n\t" |
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PMULHRW(%%mm0, %%mm1, %%mm5, %%mm6) |
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"paddw (%2, %0), %%mm0 \n\t" |
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"paddw 8(%2, %0), %%mm1 \n\t" |
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"movq %%mm0, (%2, %0) \n\t" |
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"movq %%mm1, 8(%2, %0) \n\t" |
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"add $16, %0 \n\t" |
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"cmp $128, %0 \n\t" // FIXME optimize & bench |
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" jb 1b \n\t" |
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: "+r" (i) |
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: "r"(basis), "r"(rem), "g"(scale) |
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); |
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}else{ |
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for(i=0; i<8*8; i++){ |
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rem[i] += (basis[i]*scale + (1<<(BASIS_SHIFT - RECON_SHIFT-1)))>>(BASIS_SHIFT - RECON_SHIFT); |
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} |
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} |
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}
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