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authorMichael Niedermayer <michaelni@gmx.at>2014-07-10 00:56:05 +0200
committerMichael Niedermayer <michaelni@gmx.at>2014-07-10 01:22:14 +0200
commit2d5e9451de3c7ab00cac6ec4aff290e12a2f190d (patch)
tree9934a09e3ad1f63796274ee59f216df19cd9ca02 /libavcodec/arm/pixblockdsp_armv6.S
parent6cc1fec41263add956b35af96d7c4a81c9436a65 (diff)
parentf46bb608d9d76c543e4929dc8cffe36b84bd789e (diff)
Merge commit 'f46bb608d9d76c543e4929dc8cffe36b84bd789e'
* commit 'f46bb608d9d76c543e4929dc8cffe36b84bd789e': dsputil: Split off pixel block routines into their own context Conflicts: configure libavcodec/dsputil.c libavcodec/mpegvideo_enc.c libavcodec/pixblockdsp_template.c libavcodec/x86/dsputilenc.asm libavcodec/x86/dsputilenc_mmx.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/arm/pixblockdsp_armv6.S')
-rw-r--r--libavcodec/arm/pixblockdsp_armv6.S76
1 files changed, 76 insertions, 0 deletions
diff --git a/libavcodec/arm/pixblockdsp_armv6.S b/libavcodec/arm/pixblockdsp_armv6.S
new file mode 100644
index 0000000000..b10ea78e88
--- /dev/null
+++ b/libavcodec/arm/pixblockdsp_armv6.S
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2009 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 "libavutil/arm/asm.S"
+
+function ff_get_pixels_armv6, export=1
+ pld [r1, r2]
+ push {r4-r8, lr}
+ mov lr, #8
+1:
+ ldrd_post r4, r5, r1, r2
+ subs lr, lr, #1
+ uxtb16 r6, r4
+ uxtb16 r4, r4, ror #8
+ uxtb16 r12, r5
+ uxtb16 r8, r5, ror #8
+ pld [r1, r2]
+ pkhbt r5, r6, r4, lsl #16
+ pkhtb r6, r4, r6, asr #16
+ pkhbt r7, r12, r8, lsl #16
+ pkhtb r12, r8, r12, asr #16
+ stm r0!, {r5,r6,r7,r12}
+ bgt 1b
+
+ pop {r4-r8, pc}
+endfunc
+
+function ff_diff_pixels_armv6, export=1
+ pld [r1, r3]
+ pld [r2, r3]
+ push {r4-r9, lr}
+ mov lr, #8
+1:
+ ldrd_post r4, r5, r1, r3
+ ldrd_post r6, r7, r2, r3
+ uxtb16 r8, r4
+ uxtb16 r4, r4, ror #8
+ uxtb16 r9, r6
+ uxtb16 r6, r6, ror #8
+ pld [r1, r3]
+ ssub16 r9, r8, r9
+ ssub16 r6, r4, r6
+ uxtb16 r8, r5
+ uxtb16 r5, r5, ror #8
+ pld [r2, r3]
+ pkhbt r4, r9, r6, lsl #16
+ pkhtb r6, r6, r9, asr #16
+ uxtb16 r9, r7
+ uxtb16 r7, r7, ror #8
+ ssub16 r9, r8, r9
+ ssub16 r5, r5, r7
+ subs lr, lr, #1
+ pkhbt r8, r9, r5, lsl #16
+ pkhtb r9, r5, r9, asr #16
+ stm r0!, {r4,r6,r8,r9}
+ bgt 1b
+
+ pop {r4-r9, pc}
+endfunc