| ;***************************************************************************** |
| ;* dct-64.asm: h264 encoder library |
| ;***************************************************************************** |
| ;* Copyright (C) 2003-2008 x264 project |
| ;* |
| ;* Authors: Laurent Aimar <fenrir@via.ecp.fr> (initial version) |
| ;* Loren Merritt <lorenm@u.washington.edu> (dct8, misc) |
| ;* Min Chen <chenm001.163.com> (converted to nasm) |
| ;* |
| ;* This program is free software; you can redistribute it and/or modify |
| ;* it under the terms of the GNU General Public License as published by |
| ;* the Free Software Foundation; either version 2 of the License, or |
| ;* (at your option) any later version. |
| ;* |
| ;* This program 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 General Public License for more details. |
| ;* |
| ;* You should have received a copy of the GNU General Public License |
| ;* along with this program; if not, write to the Free Software |
| ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. |
| ;***************************************************************************** |
| |
| %include "x86inc.asm" |
| %include "x86util.asm" |
| |
| SECTION_RODATA |
| pw_32: times 8 dw 32 |
| |
| SECTION .text |
| INIT_XMM |
| |
| %macro DCT8_1D 10 |
| SUMSUB_BA m%8, m%1 ; %8=s07, %1=d07 |
| SUMSUB_BA m%7, m%2 ; %7=s16, %2=d16 |
| SUMSUB_BA m%6, m%3 ; %6=s25, %3=d25 |
| SUMSUB_BA m%5, m%4 ; %5=s34, %4=d34 |
| |
| SUMSUB_BA m%5, m%8 ; %5=a0, %8=a2 |
| SUMSUB_BA m%6, m%7 ; %6=a1, %7=a3 |
| |
| movdqa m%9, m%1 |
| psraw m%9, 1 |
| paddw m%9, m%1 |
| paddw m%9, m%2 |
| paddw m%9, m%3 ; %9=a4 |
| |
| movdqa m%10, m%4 |
| psraw m%10, 1 |
| paddw m%10, m%4 |
| paddw m%10, m%2 |
| psubw m%10, m%3 ; %10=a7 |
| |
| SUMSUB_BA m%4, m%1 |
| psubw m%1, m%3 |
| psubw m%4, m%2 |
| psraw m%3, 1 |
| psraw m%2, 1 |
| psubw m%1, m%3 ; %1=a5 |
| psubw m%4, m%2 ; %4=a6 |
| |
| SUMSUB_BA m%6, m%5 ; %6=b0, %5=b4 |
| |
| movdqa m%2, m%10 |
| psraw m%2, 2 |
| paddw m%2, m%9 ; %2=b1 |
| psraw m%9, 2 |
| psubw m%9, m%10 ; %9=b7 |
| |
| movdqa m%3, m%7 |
| psraw m%3, 1 |
| paddw m%3, m%8 ; %3=b2 |
| psraw m%8, 1 |
| psubw m%8, m%7 ; %8=b6 |
| |
| movdqa m%7, m%4 |
| psraw m%7, 2 |
| paddw m%7, m%1 ; %7=b3 |
| psraw m%1, 2 |
| psubw m%4, m%1 ; %4=b5 |
| |
| SWAP %1, %6, %4, %7, %8, %9 |
| %endmacro |
| |
| ;----------------------------------------------------------------------------- |
| ; void x264_sub8x8_dct8_sse2( int16_t dct[8][8], uint8_t *pix1, uint8_t *pix2 ) |
| ;----------------------------------------------------------------------------- |
| cglobal x264_sub8x8_dct8_sse2 |
| LOAD_DIFF m0, m8, m9, [r1+0*FENC_STRIDE], [r2+0*FDEC_STRIDE] |
| LOAD_DIFF m1, m8, m9, [r1+1*FENC_STRIDE], [r2+1*FDEC_STRIDE] |
| LOAD_DIFF m2, m8, m9, [r1+2*FENC_STRIDE], [r2+2*FDEC_STRIDE] |
| LOAD_DIFF m3, m8, m9, [r1+3*FENC_STRIDE], [r2+3*FDEC_STRIDE] |
| LOAD_DIFF m4, m8, m9, [r1+4*FENC_STRIDE], [r2+4*FDEC_STRIDE] |
| LOAD_DIFF m5, m8, m9, [r1+5*FENC_STRIDE], [r2+5*FDEC_STRIDE] |
| LOAD_DIFF m6, m8, m9, [r1+6*FENC_STRIDE], [r2+6*FDEC_STRIDE] |
| LOAD_DIFF m7, m8, m9, [r1+7*FENC_STRIDE], [r2+7*FDEC_STRIDE] |
| |
| DCT8_1D 0,1,2,3,4,5,6,7,8,9 |
| TRANSPOSE8x8W 0,1,2,3,4,5,6,7,8 |
| DCT8_1D 0,1,2,3,4,5,6,7,8,9 |
| |
| movdqa [r0+0x00], m0 |
| movdqa [r0+0x10], m1 |
| movdqa [r0+0x20], m2 |
| movdqa [r0+0x30], m3 |
| movdqa [r0+0x40], m4 |
| movdqa [r0+0x50], m5 |
| movdqa [r0+0x60], m6 |
| movdqa [r0+0x70], m7 |
| ret |
| |
| |
| %macro IDCT8_1D 10 |
| SUMSUB_BA m%5, m%1 ; %5=a0, %1=a2 |
| movdqa m%10, m%3 |
| psraw m%3, 1 |
| psubw m%3, m%7 ; %3=a4 |
| psraw m%7, 1 |
| paddw m%7, m%10 ; %7=a6 |
| |
| movdqa m%9, m%2 |
| psraw m%9, 1 |
| paddw m%9, m%2 |
| paddw m%9, m%4 |
| paddw m%9, m%6 ; %9=a7 |
| |
| movdqa m%10, m%6 |
| psraw m%10, 1 |
| paddw m%10, m%6 |
| paddw m%10, m%8 |
| psubw m%10, m%2 ; %10=a5 |
| |
| psubw m%2, m%4 |
| psubw m%6, m%4 |
| paddw m%2, m%8 |
| psubw m%6, m%8 |
| psraw m%4, 1 |
| psraw m%8, 1 |
| psubw m%2, m%4 ; %2=a3 |
| psubw m%6, m%8 ; %6=a1 |
| |
| SUMSUB_BA m%7, m%5 ; %7=b0, %5=b6 |
| SUMSUB_BA m%3, m%1 ; %3=b2, %1=b4 |
| |
| movdqa m%4, m%9 |
| psraw m%4, 2 |
| paddw m%4, m%6 ; %4=b1 |
| psraw m%6, 2 |
| psubw m%9, m%6 ; %9=b7 |
| |
| movdqa m%8, m%10 |
| psraw m%8, 2 |
| paddw m%8, m%2 ; %8=b3 |
| psraw m%2, 2 |
| psubw m%2, m%10 ; %2=b5 |
| |
| SUMSUB_BA m%9, m%7 ; %9=c0, %7=c7 |
| SUMSUB_BA m%2, m%3 ; %2=c1, %3=c6 |
| SUMSUB_BA m%8, m%1 ; %8=c2, %1=c5 |
| SUMSUB_BA m%4, m%5 ; %4=c3, %5=c4 |
| |
| SWAP %1, %9, %6 |
| SWAP %3, %8, %7 |
| %endmacro |
| |
| ;----------------------------------------------------------------------------- |
| ; void x264_add8x8_idct8_sse2( uint8_t *p_dst, int16_t dct[8][8] ) |
| ;----------------------------------------------------------------------------- |
| cglobal x264_add8x8_idct8_sse2 |
| movdqa m0, [r1+0x00] |
| movdqa m1, [r1+0x10] |
| movdqa m2, [r1+0x20] |
| movdqa m3, [r1+0x30] |
| movdqa m4, [r1+0x40] |
| movdqa m5, [r1+0x50] |
| movdqa m6, [r1+0x60] |
| movdqa m7, [r1+0x70] |
| |
| IDCT8_1D 0,1,2,3,4,5,6,7,8,9 |
| TRANSPOSE8x8W 0,1,2,3,4,5,6,7,8 |
| paddw m0, [pw_32 GLOBAL] ; rounding for the >>6 at the end |
| IDCT8_1D 0,1,2,3,4,5,6,7,8,9 |
| |
| pxor m9, m9 |
| STORE_DIFF m0, m8, m9, [r0+0*FDEC_STRIDE] |
| STORE_DIFF m1, m8, m9, [r0+1*FDEC_STRIDE] |
| STORE_DIFF m2, m8, m9, [r0+2*FDEC_STRIDE] |
| STORE_DIFF m3, m8, m9, [r0+3*FDEC_STRIDE] |
| STORE_DIFF m4, m8, m9, [r0+4*FDEC_STRIDE] |
| STORE_DIFF m5, m8, m9, [r0+5*FDEC_STRIDE] |
| STORE_DIFF m6, m8, m9, [r0+6*FDEC_STRIDE] |
| STORE_DIFF m7, m8, m9, [r0+7*FDEC_STRIDE] |
| ret |
| |
| |
