213 lines
6 KiB
NASM
Executable file
213 lines
6 KiB
NASM
Executable file
;******************************************************************************
|
|
;* MMX/SSE2-optimized functions for the RV30 and RV40 decoders
|
|
;* Copyright (C) 2012 Christophe Gisquet <christophe.gisquet@gmail.com>
|
|
;*
|
|
;* 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
|
|
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, 1, 2, 0
|
|
movsx r1, word [r0]
|
|
IDCT_DC r1
|
|
movd m0, r1d
|
|
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 mmxext
|
|
%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);
|
|
%if ARCH_X86_32
|
|
INIT_MMX mmx
|
|
cglobal rv34_idct_dc_add, 3, 3
|
|
; calculate DC
|
|
IDCT_DC_ROUND r2
|
|
pxor m1, m1
|
|
movd m0, r2d
|
|
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
|
|
%endif
|
|
|
|
; 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_mmxext(uint8_t *dst, ptrdiff_t stride, int16_t *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 mmxext
|
|
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);
|
|
%macro RV34_IDCT_DC_ADD 0
|
|
cglobal rv34_idct_dc_add, 3, 3, 6
|
|
; load data
|
|
IDCT_DC_ROUND r2
|
|
pxor m1, m1
|
|
|
|
; calculate DC
|
|
movd m0, r2d
|
|
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
|
|
%if cpuflag(sse4)
|
|
pextrd [r0+r1], m2, 1
|
|
pextrd [r2], m2, 2
|
|
pextrd [r2+r1], m2, 3
|
|
%else
|
|
psrldq m2, 4
|
|
movd [r0+r1], m2
|
|
psrldq m2, 4
|
|
movd [r2], m2
|
|
psrldq m2, 4
|
|
movd [r2+r1], m2
|
|
%endif
|
|
RET
|
|
%endmacro
|
|
|
|
INIT_XMM sse2
|
|
RV34_IDCT_DC_ADD
|
|
INIT_XMM sse4
|
|
RV34_IDCT_DC_ADD
|