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| author | Måns Rullgård <mans@mansr.com> | 2008-12-17 00:54:54 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2008-12-17 00:54:54 +0000 |
| commit | a2fc0f6a6ddf884ace3c96a0d4f09f0932e6db32 (patch) | |
| tree | 44b807b924e29465a6aed924fcb53c719a83a956 /libavcodec/arm/h264idct_neon.S | |
| parent | 2600f8c86dcaa411a0485b1518e5e1592374aaf6 (diff) | |
| download | ffmpeg-a2fc0f6a6ddf884ace3c96a0d4f09f0932e6db32.tar.gz | |
ARM: replace "armv4l" with "arm"
Originally committed as revision 16179 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/arm/h264idct_neon.S')
| -rw-r--r-- | libavcodec/arm/h264idct_neon.S | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/libavcodec/arm/h264idct_neon.S b/libavcodec/arm/h264idct_neon.S new file mode 100644 index 0000000000..b7ef2f4519 --- /dev/null +++ b/libavcodec/arm/h264idct_neon.S @@ -0,0 +1,96 @@ +/* + * Copyright (c) 2008 Mans Rullgard <mans@mansr.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 "asm.S" + + .fpu neon + + .text + +function ff_h264_idct_add_neon, export=1 + mov r3, #(1<<5) + vmov.i16 d16, #0 + vmov.16 d16[0], r3 + vld1.64 {d0-d3}, [r1,:128] + vadd.i16 d0, d0, d16 + + vswp d1, d2 + vadd.i16 d4, d0, d1 + vshr.s16 q8, q1, #1 + vsub.i16 d5, d0, d1 + vadd.i16 d6, d2, d17 + vsub.i16 d7, d16, d3 + vadd.i16 q0, q2, q3 + vsub.i16 q1, q2, q3 + + vtrn.16 d0, d1 + vtrn.16 d3, d2 + vtrn.32 d0, d3 + vtrn.32 d1, d2 + + vadd.i16 d4, d0, d3 + vld1.32 {d18[0]}, [r0,:32], r2 + vswp d1, d3 + vshr.s16 q8, q1, #1 + vld1.32 {d19[1]}, [r0,:32], r2 + vsub.i16 d5, d0, d1 + vld1.32 {d18[1]}, [r0,:32], r2 + vadd.i16 d6, d16, d3 + vld1.32 {d19[0]}, [r0,:32], r2 + vsub.i16 d7, d2, d17 + sub r0, r0, r2, lsl #2 + vadd.i16 q0, q2, q3 + vsub.i16 q1, q2, q3 + + vshr.s16 q0, q0, #6 + vshr.s16 q1, q1, #6 + + vaddw.u8 q0, q0, d18 + vaddw.u8 q1, q1, d19 + + vqmovun.s16 d0, q0 + vqmovun.s16 d1, q1 + + vst1.32 {d0[0]}, [r0,:32], r2 + vst1.32 {d1[1]}, [r0,:32], r2 + vst1.32 {d0[1]}, [r0,:32], r2 + vst1.32 {d1[0]}, [r0,:32], r2 + + bx lr + .endfunc + +function ff_h264_idct_dc_add_neon, export=1 + vld1.16 {d2[],d3[]}, [r1,:16] + vrshr.s16 q1, q1, #6 + vld1.32 {d0[0]}, [r0,:32], r2 + vld1.32 {d0[1]}, [r0,:32], r2 + vaddw.u8 q2, q1, d0 + vld1.32 {d1[0]}, [r0,:32], r2 + vld1.32 {d1[1]}, [r0,:32], r2 + vaddw.u8 q1, q1, d1 + vqmovun.s16 d0, q2 + vqmovun.s16 d1, q1 + sub r0, r0, r2, lsl #2 + vst1.32 {d0[0]}, [r0,:32], r2 + vst1.32 {d0[1]}, [r0,:32], r2 + vst1.32 {d1[0]}, [r0,:32], r2 + vst1.32 {d1[1]}, [r0,:32], r2 + bx lr + .endfunc |