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; Avisynth v2.5. Copyright 2002 Ben Rudiak-Gould et al.
; http://www.avisynth.org
;
; This program is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 2 of the License, or
; (at your option) any later version.
;
; This program 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 General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program; if not, write to the Free Software
; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit
; http://www.gnu.org/copyleft/gpl.html .
;
; Linking Avisynth statically or dynamically with other modules is making a
; combined work based on Avisynth. Thus, the terms and conditions of the GNU
; General Public License cover the whole combination.
;
; As a special exception, the copyright holders of Avisynth give you
; permission to link Avisynth with independent modules that communicate with
; Avisynth solely through the interfaces defined in avisynth.h, regardless of the license
; terms of these independent modules, and to copy and distribute the
; resulting combined work under terms of your choice, provided that
; every copy of the combined work is accompanied by a complete copy of
; the source code of Avisynth (the version of Avisynth used to produce the
; combined work), being distributed under the terms of the GNU General
; Public License plus this exception. An independent module is a module
; which is not derived from or based on Avisynth, such as 3rd-party filters,
; import and export plugins, or graphical user interfaces.
.586
.mmx
.model flat
; alignment has to be 'page' so that I can use 'align 32' below
_TEXT64 segment page public use32 'CODE'
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 8
yuv2rgb_constants:
x0000_0000_0010_0010 dq 00000000000100010h
x0080_0080_0080_0080 dq 00080008000800080h
x00FF_00FF_00FF_00FF dq 000FF00FF00FF00FFh
x00002000_00002000 dq 00000200000002000h
xFF000000_FF000000 dq 0FF000000FF000000h
cy dq 000004A8500004A85h
crv dq 03313000033130000h
cgu_cgv dq 0E5FCF377E5FCF377h
cbu dq 00000408D0000408Dh
yuv2rgb_constants_rec709:
dq 00000000000100010h
dq 00080008000800080h
dq 000FF00FF00FF00FFh
dq 00000200000002000h
dq 0FF000000FF000000h
dq 000004A8500004A85h
dq 03960000039600000h
dq 0EEF5F930EEF5F930h
dq 00000439B0000439Bh
ofs_x0000_0000_0010_0010 = 0
ofs_x0080_0080_0080_0080 = 8
ofs_x00FF_00FF_00FF_00FF = 16
ofs_x00002000_00002000 = 24
ofs_xFF000000_FF000000 = 32
ofs_cy = 40
ofs_crv = 48
ofs_cgu_cgv = 56
ofs_cbu = 64
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
GET_Y MACRO mma,uyvy
IF &uyvy
psrlw mma,8
ELSE
pand mma,[edx+ofs_x00FF_00FF_00FF_00FF]
ENDIF
ENDM
GET_UV MACRO mma,uyvy
GET_Y mma,1-uyvy
ENDM
YUV2RGB_INNER_LOOP MACRO uyvy,rgb32,no_next_pixel
;; This YUV422->RGB conversion code uses only four MMX registers per
;; source dword, so I convert two dwords in parallel. Lines corresponding
;; to the "second pipe" are indented an extra space. There's almost no
;; overlap, except at the end and in the three lines marked ***.
;; revised 4july,2002 to properly set alpha in rgb32 to default "on" & other small memory optimizations
movd mm0, dword ptr [esi]
movd mm5, dword ptr [esi+4]
movq mm1,mm0
GET_Y mm0,&uyvy ; mm0 = __________Y1__Y0
movq mm4,mm5
GET_UV mm1,&uyvy ; mm1 = __________V0__U0
GET_Y mm4,&uyvy
movq mm2,mm5 ; *** avoid reload from [esi+4]
GET_UV mm5,&uyvy
psubw mm0, qword ptr [edx+ofs_x0000_0000_0010_0010]
movd mm6, dword ptr [esi+8-4*(no_next_pixel)]
GET_UV mm2,&uyvy ; mm2 = __________V2__U2
psubw mm4, qword ptr [edx+ofs_x0000_0000_0010_0010]
paddw mm2,mm1
GET_UV mm6,&uyvy
psubw mm1, qword ptr [edx+ofs_x0080_0080_0080_0080]
paddw mm6,mm5
psllq mm2,32
psubw mm5, qword ptr [edx+ofs_x0080_0080_0080_0080]
punpcklwd mm0,mm2 ; mm0 = ______Y1______Y0
psllq mm6,32
pmaddwd mm0, qword ptr [edx+ofs_cy]
punpcklwd mm4,mm6
paddw mm1,mm1
pmaddwd mm4, qword ptr [edx+ofs_cy]
paddw mm5,mm5
paddw mm1,mm2 ; mm1 = __V1__U1__V0__U0 * 2
paddd mm0,[edx+ofs_x00002000_00002000]
paddw mm5,mm6
movq mm2,mm1
paddd mm4,[edx+ofs_x00002000_00002000]
movq mm3,mm1
movq mm6,mm5
pmaddwd mm1,[edx+ofs_crv]
movq mm7,mm5
paddd mm1,mm0
pmaddwd mm5,[edx+ofs_crv]
psrad mm1,14 ; mm1 = RRRRRRRRrrrrrrrr
paddd mm5,mm4
pmaddwd mm2,[edx+ofs_cgu_cgv]
psrad mm5,14
paddd mm2,mm0
pmaddwd mm6,[edx+ofs_cgu_cgv]
psrad mm2,14 ; mm2 = GGGGGGGGgggggggg
paddd mm6,mm4
pmaddwd mm3,[edx+ofs_cbu]
psrad mm6,14
paddd mm3,mm0
pmaddwd mm7,[edx+ofs_cbu]
add esi,8
add edi,12+4*rgb32
IFE &no_next_pixel
cmp esi,ecx
ENDIF
psrad mm3,14 ; mm3 = BBBBBBBBbbbbbbbb
paddd mm7,mm4
pxor mm0,mm0
psrad mm7,14
packssdw mm3,mm2 ; mm3 = GGGGggggBBBBbbbb
packssdw mm7,mm6
packssdw mm1,mm0 ; mm1 = ________RRRRrrrr
packssdw mm5,mm0 ; *** avoid pxor mm4,mm4
movq mm2,mm3
movq mm6,mm7
punpcklwd mm2,mm1 ; mm2 = RRRRBBBBrrrrbbbb
punpcklwd mm6,mm5
punpckhwd mm3,mm1 ; mm3 = ____GGGG____gggg
punpckhwd mm7,mm5
movq mm0,mm2
movq mm4,mm6
punpcklwd mm0,mm3 ; mm0 = ____rrrrggggbbbb
punpcklwd mm4,mm7
IFE &rgb32
psllq mm0,16
psllq mm4,16
ENDIF
punpckhwd mm2,mm3 ; mm2 = ____RRRRGGGGBBBB
punpckhwd mm6,mm7
packuswb mm0,mm2 ; mm0 = __RRGGBB__rrggbb <- ta dah!
packuswb mm4,mm6
IF &rgb32
por mm0, [edx+ofs_xFF000000_FF000000] ; set alpha channels "on"
por mm4, [edx+ofs_xFF000000_FF000000]
movq [edi-16],mm0 ; store the quadwords independently
movq [edi-8],mm4
ELSE
psrlq mm0,8 ; pack the two quadwords into 12 bytes
psllq mm4,8 ; (note: the two shifts above leave
movd dword ptr [edi-12],mm0 ; mm0,4 = __RRGGBBrrggbb__)
psrlq mm0,32
por mm4,mm0
movd dword ptr [edi-8],mm4
psrlq mm4,32
movd dword ptr [edi-4],mm4
ENDIF
ENDM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
YUV2RGB_PROC MACRO procname,uyvy,rgb32
PUBLIC C _&procname
;;void __cdecl procname(
;; [esp+ 4] const BYTE* src,
;; [esp+ 8] BYTE* dst,
;; [esp+12] const BYTE* src_end,
;; [esp+16] int src_pitch,
;; [esp+20] int row_size,
;; [esp+24] bool rec709);
_&procname PROC
push esi
push edi
push ebx
mov eax,[esp+16+12]
mov esi,[esp+12+12] ; read source bottom-up
mov edi,[esp+8+12]
mov ebx,[esp+20+12]
mov edx,offset yuv2rgb_constants
test byte ptr [esp+24+12],1
jz loop0
mov edx,offset yuv2rgb_constants_rec709
loop0:
sub esi,eax
lea ecx,[esi+ebx-8]
align 32
loop1:
YUV2RGB_INNER_LOOP uyvy,rgb32,0
jb loop1
YUV2RGB_INNER_LOOP uyvy,rgb32,1
sub esi,ebx
cmp esi,[esp+4+12]
ja loop0
emms
pop ebx
pop edi
pop esi
retn
_&procname ENDP
ENDM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
YUV2RGB_PROC mmx_YUY2toRGB24,0,0
YUV2RGB_PROC mmx_YUY2toRGB32,0,1
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
END
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