1 @*****************************************************************************
2 @ i420_yuyv.S : ARM NEONv1 I420 to YUYV chroma conversion
3 @*****************************************************************************
4 @ Copyright (C) 2009-2011 RĂ©mi Denis-Courmont
6 @ This program is free software; you can redistribute it and/or modify
7 @ it under the terms of the GNU General Public License as published by
8 @ the Free Software Foundation; either version 2 of the License, or
9 @ (at your option) any later version.
11 @ This program is distributed in the hope that it will be useful,
12 @ but WITHOUT ANY WARRANTY; without even the implied warranty of
13 @ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 @ GNU General Public License for more details.
16 @ You should have received a copy of the GNU General Public License
17 @ along with this program; if not, write to the Free Software Foundation,
18 @ Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
19 @****************************************************************************/
39 .global i420_yuyv_neon
40 .type i420_yuyv_neon, %function
42 push {r4-r8,r10-r11,lr}
43 ldmia r0, {O1, OPITCH}
44 ldmia r1, {Y1, U, V, YPITCH}
46 sub OPAD, OPITCH, WIDTH, lsl #1
47 sub YPAD, YPITCH, WIDTH
52 pople {r4-r8,r10-r11,pc}
55 vld1.u8 {d2}, [U,:64]!
57 vld1.u8 {d3}, [V,:64]!
60 subs COUNT, COUNT, #16
61 vld1.u8 {q0}, [Y1,:128]!
65 vld1.u8 {q2}, [Y2,:128]!
67 vst1.u8 {q0-q1}, [O1,:128]!
68 vst1.u8 {q2-q3}, [O2,:128]!
74 add U, U, YPAD, lsr #1
75 add V, V, YPAD, lsr #1
78 .global i420_uyvy_neon
79 .type i420_uyvy_neon, %function
81 push {r4-r8,r10-r11,lr}
82 ldmia r0, {O1, OPITCH}
83 ldmia r1, {Y1, U, V, YPITCH}
85 sub OPAD, OPITCH, WIDTH, lsl #1
86 sub YPAD, YPITCH, WIDTH
91 pople {r4-r8,r10-r11,pc}
94 vld1.u8 {d0}, [U,:64]!
96 vld1.u8 {d1}, [V,:64]!
99 subs COUNT, COUNT, #16
100 vld1.u8 {q1}, [Y1,:128]!
104 vld1.u8 {q3}, [Y2,:128]!
106 vst1.u8 {q0-q1}, [O1,:128]!
107 vst1.u8 {q2-q3}, [O2,:128]!
113 add U, U, YPAD, lsr #1
114 add V, V, YPAD, lsr #1