ffmpeg/libavfilter/x86/hqdn3d.asm
Michael Niedermayer 17106a7c90 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  audio_frame_queue: Clean up ff_af_queue_log_state debug function
  dwt: Remove unused code.
  cavs: convert cavsdata.h to a .c file
  cavs: Move inline functions only used in one file out of the header
  cavs: Move data tables used in only one place to that file
  fate: Add a single symbol Ut Video decoder test
  vf_hqdn3d: x86 asm
  vf_hqdn3d: support 16bit colordepth
  avconv: prefer user-forced input framerate when choosing output framerate

Conflicts:
	ffmpeg.c
	libavcodec/audio_frame_queue.c
	libavcodec/dwt.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-08-26 22:40:02 +02:00

107 lines
3.0 KiB
NASM

;******************************************************************************
;* 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 "x86inc.asm"
SECTION .text
%macro LOWPASS 3 ; prevsample, cursample, lut
sub %1q, %2q
%if lut_bits != 8
sar %1q, 8-lut_bits
%endif
movsx %1d, word [%3q+%1q*2]
add %1d, %2d
%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
%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
add t0d, (1<<(15-%1))-1
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