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.
196 lines
5.7 KiB
196 lines
5.7 KiB
;****************************************************************************** |
|
;* MMX/SSE2-optimized functions for the RV30 and RV40 decoders |
|
;* Copyright (C) 2012 Christophe Gisquet <christophe.gisquet@gmail.com> |
|
;* |
|
;* This file is part of Libav. |
|
;* |
|
;* Libav 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. |
|
;* |
|
;* Libav 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 Libav; if not, write to the Free Software |
|
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
;****************************************************************************** |
|
|
|
%include "x86inc.asm" |
|
%include "x86util.asm" |
|
|
|
SECTION_RODATA |
|
pw_row_coeffs: times 4 dw 13 |
|
times 4 dw 17 |
|
times 4 dw 7 |
|
pd_512: times 2 dd 0x200 |
|
pw_col_coeffs: dw 13, 13, 13, -13 |
|
dw 17, 7, 7, -17 |
|
dw 13, -13, 13, 13 |
|
dw -7, 17, -17, -7 |
|
|
|
SECTION .text |
|
|
|
%macro IDCT_DC_NOROUND 1 |
|
imul %1, 13*13*3 |
|
sar %1, 11 |
|
%endmacro |
|
|
|
%macro IDCT_DC_ROUND 1 |
|
imul %1, 13*13 |
|
add %1, 0x200 |
|
sar %1, 10 |
|
%endmacro |
|
|
|
%macro rv34_idct 1 |
|
cglobal rv34_idct_%1_mmx2, 1, 2, 0 |
|
movsx r1, word [r0] |
|
IDCT_DC r1 |
|
movd m0, r1 |
|
pshufw m0, m0, 0 |
|
movq [r0+ 0], m0 |
|
movq [r0+ 8], m0 |
|
movq [r0+16], m0 |
|
movq [r0+24], m0 |
|
REP_RET |
|
%endmacro |
|
|
|
INIT_MMX |
|
%define IDCT_DC IDCT_DC_ROUND |
|
rv34_idct dc |
|
%define IDCT_DC IDCT_DC_NOROUND |
|
rv34_idct dc_noround |
|
|
|
; ff_rv34_idct_dc_add_mmx(uint8_t *dst, int stride, int dc); |
|
cglobal rv34_idct_dc_add_mmx, 3, 3 |
|
; calculate DC |
|
IDCT_DC_ROUND r2 |
|
pxor m1, m1 |
|
movd m0, r2 |
|
psubw m1, m0 |
|
packuswb m0, m0 |
|
packuswb m1, m1 |
|
punpcklbw m0, m0 |
|
punpcklbw m1, m1 |
|
punpcklwd m0, m0 |
|
punpcklwd m1, m1 |
|
|
|
; add DC |
|
lea r2, [r0+r1*2] |
|
movh m2, [r0] |
|
movh m3, [r0+r1] |
|
movh m4, [r2] |
|
movh m5, [r2+r1] |
|
paddusb m2, m0 |
|
paddusb m3, m0 |
|
paddusb m4, m0 |
|
paddusb m5, m0 |
|
psubusb m2, m1 |
|
psubusb m3, m1 |
|
psubusb m4, m1 |
|
psubusb m5, m1 |
|
movh [r0], m2 |
|
movh [r0+r1], m3 |
|
movh [r2], m4 |
|
movh [r2+r1], m5 |
|
RET |
|
|
|
; Load coeffs and perform row transform |
|
; Output: coeffs in mm[0467], rounder in mm5 |
|
%macro ROW_TRANSFORM 1 |
|
pxor mm7, mm7 |
|
mova mm0, [%1+ 0*8] |
|
mova mm1, [%1+ 1*8] |
|
mova mm2, [%1+ 2*8] |
|
mova mm3, [%1+ 3*8] |
|
mova [%1+ 0*8], mm7 |
|
mova [%1+ 1*8], mm7 |
|
mova [%1+ 2*8], mm7 |
|
mova [%1+ 3*8], mm7 |
|
mova mm4, mm0 |
|
mova mm6, [pw_row_coeffs+ 0] |
|
paddsw mm0, mm2 ; b0 + b2 |
|
psubsw mm4, mm2 ; b0 - b2 |
|
pmullw mm0, mm6 ; *13 = z0 |
|
pmullw mm4, mm6 ; *13 = z1 |
|
mova mm5, mm1 |
|
pmullw mm1, [pw_row_coeffs+ 8] ; b1*17 |
|
pmullw mm5, [pw_row_coeffs+16] ; b1* 7 |
|
mova mm7, mm3 |
|
pmullw mm3, [pw_row_coeffs+ 8] ; b3*17 |
|
pmullw mm7, [pw_row_coeffs+16] ; b3* 7 |
|
paddsw mm1, mm7 ; z3 = b1*17 + b3* 7 |
|
psubsw mm5, mm3 ; z2 = b1* 7 - b3*17 |
|
mova mm7, mm0 |
|
mova mm6, mm4 |
|
paddsw mm0, mm1 ; z0 + z3 |
|
psubsw mm7, mm1 ; z0 - z3 |
|
paddsw mm4, mm5 ; z1 + z2 |
|
psubsw mm6, mm5 ; z1 - z2 |
|
mova mm5, [pd_512] ; 0x200 |
|
%endmacro |
|
|
|
; ff_rv34_idct_add_mmx2(uint8_t *dst, ptrdiff_t stride, DCTELEM *block); |
|
%macro COL_TRANSFORM 4 |
|
pshufw mm3, %2, 0xDD ; col. 1,3,1,3 |
|
pshufw %2, %2, 0x88 ; col. 0,2,0,2 |
|
pmaddwd %2, %3 ; 13*c0+13*c2 | 13*c0-13*c2 = z0 | z1 |
|
pmaddwd mm3, %4 ; 17*c1+ 7*c3 | 7*c1-17*c3 = z3 | z2 |
|
paddd %2, mm5 |
|
pshufw mm1, %2, 01001110b ; z1 | z0 |
|
pshufw mm2, mm3, 01001110b ; z2 | z3 |
|
paddd %2, mm3 ; z0+z3 | z1+z2 |
|
psubd mm1, mm2 ; z1-z2 | z0-z3 |
|
movd mm3, %1 |
|
psrad %2, 10 |
|
pxor mm2, mm2 |
|
psrad mm1, 10 |
|
punpcklbw mm3, mm2 |
|
packssdw %2, mm1 |
|
paddw %2, mm3 |
|
packuswb %2, %2 |
|
movd %1, %2 |
|
%endmacro |
|
INIT_MMX mmx2 |
|
cglobal rv34_idct_add, 3,3,0, d, s, b |
|
ROW_TRANSFORM bq |
|
COL_TRANSFORM [dq], mm0, [pw_col_coeffs+ 0], [pw_col_coeffs+ 8] |
|
mova mm0, [pw_col_coeffs+ 0] |
|
COL_TRANSFORM [dq+sq], mm4, mm0, [pw_col_coeffs+ 8] |
|
mova mm4, [pw_col_coeffs+ 8] |
|
lea dq, [dq + 2*sq] |
|
COL_TRANSFORM [dq], mm6, mm0, mm4 |
|
COL_TRANSFORM [dq+sq], mm7, mm0, mm4 |
|
ret |
|
|
|
; ff_rv34_idct_dc_add_sse4(uint8_t *dst, int stride, int dc); |
|
INIT_XMM |
|
cglobal rv34_idct_dc_add_sse4, 3, 3, 6 |
|
; load data |
|
IDCT_DC_ROUND r2 |
|
pxor m1, m1 |
|
|
|
; calculate DC |
|
movd m0, r2 |
|
lea r2, [r0+r1*2] |
|
movd m2, [r0] |
|
movd m3, [r0+r1] |
|
pshuflw m0, m0, 0 |
|
movd m4, [r2] |
|
movd m5, [r2+r1] |
|
punpcklqdq m0, m0 |
|
punpckldq m2, m3 |
|
punpckldq m4, m5 |
|
punpcklbw m2, m1 |
|
punpcklbw m4, m1 |
|
paddw m2, m0 |
|
paddw m4, m0 |
|
packuswb m2, m4 |
|
movd [r0], m2 |
|
pextrd [r0+r1], m2, 1 |
|
pextrd [r2], m2, 2 |
|
pextrd [r2+r1], m2, 3 |
|
RET
|
|
|