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 Lesser General Public License as published by
8 @ the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
16 @ You should have received a copy of the GNU Lesser 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 @****************************************************************************/
40 .global i420_yuyv_neon
41 .type i420_yuyv_neon, %function
43 push {r4-r8,r10-r11,lr}
44 ldmia r0, {O1, OPITCH}
45 ldmia r1, {Y1, U, V, YPITCH}
47 sub OPAD, OPITCH, WIDTH, lsl #1
48 sub YPAD, YPITCH, WIDTH
53 pople {r4-r8,r10-r11,pc}
56 vld1.u8 {d2}, [U,:64]!
58 vld1.u8 {d3}, [V,:64]!
61 subs COUNT, COUNT, #16
62 vld1.u8 {q0}, [Y1,:128]!
66 vld1.u8 {q2}, [Y2,:128]!
68 vst1.u8 {q0-q1}, [O1,:128]!
69 vst1.u8 {q2-q3}, [O2,:128]!
75 add U, U, YPAD, lsr #1
76 add V, V, YPAD, lsr #1
79 .global i420_uyvy_neon
80 .type i420_uyvy_neon, %function
82 push {r4-r8,r10-r11,lr}
83 ldmia r0, {O1, OPITCH}
84 ldmia r1, {Y1, U, V, YPITCH}
86 sub OPAD, OPITCH, WIDTH, lsl #1
87 sub YPAD, YPITCH, WIDTH
92 pople {r4-r8,r10-r11,pc}
95 vld1.u8 {d0}, [U,:64]!
97 vld1.u8 {d1}, [V,:64]!
100 subs COUNT, COUNT, #16
101 vld1.u8 {q1}, [Y1,:128]!
105 vld1.u8 {q3}, [Y2,:128]!
107 vst1.u8 {q0-q1}, [O1,:128]!
108 vst1.u8 {q2-q3}, [O2,:128]!
114 add U, U, YPAD, lsr #1
115 add V, V, YPAD, lsr #1