mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
2.6 KiB
80 lines
2.6 KiB
;****************************************************************************** |
|
;* SIMD-optimized IDCT-related routines |
|
;* Copyright (c) 2008 Loren Merritt |
|
;* Copyright (c) 2003-2013 Michael Niedermayer |
|
;* Copyright (c) 2013 Daniel Kang |
|
;* |
|
;* 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_RODATA |
|
|
|
cextern pb_80 |
|
|
|
SECTION_TEXT |
|
|
|
;-------------------------------------------------------------------------- |
|
;void ff_put_signed_pixels_clamped(const int16_t *block, uint8_t *pixels, |
|
; int line_size) |
|
;-------------------------------------------------------------------------- |
|
|
|
%macro PUT_SIGNED_PIXELS_CLAMPED_HALF 1 |
|
mova m1, [blockq+mmsize*0+%1] |
|
mova m2, [blockq+mmsize*2+%1] |
|
%if mmsize == 8 |
|
mova m3, [blockq+mmsize*4+%1] |
|
mova m4, [blockq+mmsize*6+%1] |
|
%endif |
|
packsswb m1, [blockq+mmsize*1+%1] |
|
packsswb m2, [blockq+mmsize*3+%1] |
|
%if mmsize == 8 |
|
packsswb m3, [blockq+mmsize*5+%1] |
|
packsswb m4, [blockq+mmsize*7+%1] |
|
%endif |
|
paddb m1, m0 |
|
paddb m2, m0 |
|
%if mmsize == 8 |
|
paddb m3, m0 |
|
paddb m4, m0 |
|
movq [pixelsq+lsizeq*0], m1 |
|
movq [pixelsq+lsizeq*1], m2 |
|
movq [pixelsq+lsizeq*2], m3 |
|
movq [pixelsq+lsize3q ], m4 |
|
%else |
|
movq [pixelsq+lsizeq*0], m1 |
|
movhps [pixelsq+lsizeq*1], m1 |
|
movq [pixelsq+lsizeq*2], m2 |
|
movhps [pixelsq+lsize3q ], m2 |
|
%endif |
|
%endmacro |
|
|
|
%macro PUT_SIGNED_PIXELS_CLAMPED 1 |
|
cglobal put_signed_pixels_clamped, 3, 4, %1, block, pixels, lsize, lsize3 |
|
mova m0, [pb_80] |
|
lea lsize3q, [lsizeq*3] |
|
PUT_SIGNED_PIXELS_CLAMPED_HALF 0 |
|
lea pixelsq, [pixelsq+lsizeq*4] |
|
PUT_SIGNED_PIXELS_CLAMPED_HALF 64 |
|
RET |
|
%endmacro |
|
|
|
INIT_MMX mmx |
|
PUT_SIGNED_PIXELS_CLAMPED 0 |
|
INIT_XMM sse2 |
|
PUT_SIGNED_PIXELS_CLAMPED 3
|
|
|