repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * QNS functions are compiled 3 times for MMX/3DNOW/SSSE3 | |
| 3 | * Copyright (c) 2004 Michael Niedermayer | |
| 4 | * | |
| 5 | * MMX optimization by Michael Niedermayer <michaelni@gmx.at> | |
| 6 | * 3DNow! and SSSE3 optimization by Zuxy Meng <zuxy.meng@gmail.com> | |
| 7 | * | |
| 8 | * This file is part of FFmpeg. | |
| 9 | * | |
| 10 | * FFmpeg is free software; you can redistribute it and/or | |
| 11 | * modify it under the terms of the GNU Lesser General Public | |
| 12 | * License as published by the Free Software Foundation; either | |
| 13 | * version 2.1 of the License, or (at your option) any later version. | |
| 14 | * | |
| 15 | * FFmpeg is distributed in the hope that it will be useful, | |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 18 | * Lesser General Public License for more details. | |
| 19 | * | |
| 20 | * You should have received a copy of the GNU Lesser General Public | |
| 21 | * License along with FFmpeg; if not, write to the Free Software | |
| 22 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 23 | */ | |
| 24 | ||
| 25 | #include <stdint.h> | |
| 26 | ||
| 27 | #include "libavutil/avassert.h" | |
| 28 | #include "libavutil/common.h" | |
| 29 | #include "libavutil/x86/asm.h" | |
| 30 | ||
| 31 | #include "inline_asm.h" | |
| 32 | ||
| 33 | #define MAX_ABS (512 >> (SCALE_OFFSET>0 ? SCALE_OFFSET : 0)) | |
| 34 | ||
| 35 | static int DEF(try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale) | |
| 36 | { | |
| 37 | x86_reg i=0; | |
| 38 | ||
| 39 | av_assert2(FFABS(scale) < MAX_ABS); | |
| 40 | scale<<= 16 + SCALE_OFFSET - BASIS_SHIFT + RECON_SHIFT; | |
| 41 | ||
| 42 | SET_RND(mm6); | |
| 43 | __asm__ volatile( | |
| 44 | "pxor %%mm7, %%mm7 \n\t" | |
| 45 | "movd %4, %%mm5 \n\t" | |
| 46 | "punpcklwd %%mm5, %%mm5 \n\t" | |
| 47 | "punpcklwd %%mm5, %%mm5 \n\t" | |
| 48 | ".p2align 4 \n\t" | |
| 49 | "1: \n\t" | |
| 50 | "movq (%1, %0), %%mm0 \n\t" | |
| 51 | "movq 8(%1, %0), %%mm1 \n\t" | |
| 52 | PMULHRW(%%mm0, %%mm1, %%mm5, %%mm6) | |
| 53 | "paddw (%2, %0), %%mm0 \n\t" | |
| 54 | "paddw 8(%2, %0), %%mm1 \n\t" | |
| 55 | "psraw $6, %%mm0 \n\t" | |
| 56 | "psraw $6, %%mm1 \n\t" | |
| 57 | "pmullw (%3, %0), %%mm0 \n\t" | |
| 58 | "pmullw 8(%3, %0), %%mm1 \n\t" | |
| 59 | "pmaddwd %%mm0, %%mm0 \n\t" | |
| 60 | "pmaddwd %%mm1, %%mm1 \n\t" | |
| 61 | "paddd %%mm1, %%mm0 \n\t" | |
| 62 | "psrld $4, %%mm0 \n\t" | |
| 63 | "paddd %%mm0, %%mm7 \n\t" | |
| 64 | "add $16, %0 \n\t" | |
| 65 | "cmp $128, %0 \n\t" //FIXME optimize & bench | |
| 66 | " jb 1b \n\t" | |
| 67 | PHADDD(%%mm7, %%mm6) | |
| 68 | "psrld $2, %%mm7 \n\t" | |
| 69 | "movd %%mm7, %0 \n\t" | |
| 70 | ||
| 71 | : "+r" (i) | |
| 72 | : "r"(basis), "r"(rem), "r"(weight), "g"(scale) | |
| 73 | ); | |
| 74 | return i; | |
| 75 | } | |
| 76 | ||
| 77 | static void DEF(add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale) | |
| 78 | { | |
| 79 | x86_reg i=0; | |
| 80 | ||
| 81 | if(FFABS(scale) < MAX_ABS){ | |
| 82 | scale<<= 16 + SCALE_OFFSET - BASIS_SHIFT + RECON_SHIFT; | |
| 83 | SET_RND(mm6); | |
| 84 | __asm__ volatile( | |
| 85 | "movd %3, %%mm5 \n\t" | |
| 86 | "punpcklwd %%mm5, %%mm5 \n\t" | |
| 87 | "punpcklwd %%mm5, %%mm5 \n\t" | |
| 88 | ".p2align 4 \n\t" | |
| 89 | "1: \n\t" | |
| 90 | "movq (%1, %0), %%mm0 \n\t" | |
| 91 | "movq 8(%1, %0), %%mm1 \n\t" | |
| 92 | PMULHRW(%%mm0, %%mm1, %%mm5, %%mm6) | |
| 93 | "paddw (%2, %0), %%mm0 \n\t" | |
| 94 | "paddw 8(%2, %0), %%mm1 \n\t" | |
| 95 | "movq %%mm0, (%2, %0) \n\t" | |
| 96 | "movq %%mm1, 8(%2, %0) \n\t" | |
| 97 | "add $16, %0 \n\t" | |
| 98 | "cmp $128, %0 \n\t" // FIXME optimize & bench | |
| 99 | " jb 1b \n\t" | |
| 100 | ||
| 101 | : "+r" (i) | |
| 102 | : "r"(basis), "r"(rem), "g"(scale) | |
| 103 | ); | |
| 104 | }else{ | |
| 105 | for(i=0; i<8*8; i++){ | |
| 106 | rem[i] += (basis[i]*scale + (1<<(BASIS_SHIFT - RECON_SHIFT-1)))>>(BASIS_SHIFT - RECON_SHIFT); | |
| 107 | } | |
| 108 | } | |
| 109 | } |