| ;****************************************************************************** |
| ;* Copyright (c) 2012 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 |
| ;****************************************************************************** |
| |
| %include "libavutil/x86/x86util.asm" |
| |
| SECTION .text |
| |
| %macro LOWPASS 3 ; prevsample, cursample, lut |
| sub %1q, %2q |
| %if lut_bits != 8 |
| sar %1q, 8-lut_bits |
| %endif |
| movsx %1q, word [%3q+%1q*2] |
| add %1q, %2q |
| %endmacro |
| |
| %macro LOAD 3 ; dstreg, x, bitdepth |
| %if %3 == 8 |
| movzx %1, byte [srcq+%2] |
| %else |
| movzx %1, word [srcq+(%2)*2] |
| %endif |
| %if %3 != 16 |
| shl %1, 16-%3 |
| add %1, (1<<(15-%3))-1 |
| %endif |
| %endmacro |
| |
| %macro HQDN3D_ROW 1 ; bitdepth |
| %if ARCH_X86_64 |
| cglobal hqdn3d_row_%1_x86, 7,10,0, src, dst, lineant, frameant, width, spatial, temporal, pixelant, t0, t1 |
| %else |
| cglobal hqdn3d_row_%1_x86, 7,7,0, src, dst, lineant, frameant, width, spatial, temporal |
| %endif |
| %assign bytedepth (%1+7)>>3 |
| %assign lut_bits 4+4*(%1/16) |
| dec widthq |
| lea srcq, [srcq+widthq*bytedepth] |
| lea dstq, [dstq+widthq*bytedepth] |
| lea frameantq, [frameantq+widthq*2] |
| lea lineantq, [lineantq+widthq*2] |
| neg widthq |
| %define xq widthq |
| %if ARCH_X86_32 |
| mov dstmp, dstq |
| mov srcmp, srcq |
| mov frameantmp, frameantq |
| mov lineantmp, lineantq |
| %define dstq r0 |
| %define frameantq r0 |
| %define lineantq r0 |
| %define pixelantq r1 |
| %define pixelantd r1d |
| DECLARE_REG_TMP 2,3 |
| %endif |
| LOAD pixelantd, xq, %1 |
| ALIGN 16 |
| .loop: |
| movifnidn srcq, srcmp |
| LOAD t0d, xq+1, %1 ; skip on the last iteration to avoid overread |
| .loop2: |
| movifnidn lineantq, lineantmp |
| movzx t1d, word [lineantq+xq*2] |
| LOWPASS t1, pixelant, spatial |
| mov [lineantq+xq*2], t1w |
| LOWPASS pixelant, t0, spatial |
| movifnidn frameantq, frameantmp |
| movzx t0d, word [frameantq+xq*2] |
| LOWPASS t0, t1, temporal |
| mov [frameantq+xq*2], t0w |
| movifnidn dstq, dstmp |
| %if %1 != 16 |
| shr t0d, 16-%1 ; could eliminate this by storing from t0h, but only with some contraints on register allocation |
| %endif |
| %if %1 == 8 |
| mov [dstq+xq], t0b |
| %else |
| mov [dstq+xq*2], t0w |
| %endif |
| inc xq |
| jl .loop |
| je .loop2 |
| REP_RET |
| %endmacro ; HQDN3D_ROW |
| |
| HQDN3D_ROW 8 |
| HQDN3D_ROW 9 |
| HQDN3D_ROW 10 |
| HQDN3D_ROW 16 |