Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(110)

Side by Side Diff: patched-ffmpeg-mt/libavutil/arm/bswap.h

Issue 789004: ffmpeg roll of source to mar 9 version... (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/ffmpeg/
Patch Set: '' Created 10 years, 9 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
OLDNEW
1 /* 1 /*
2 * This file is part of FFmpeg. 2 * This file is part of FFmpeg.
3 * 3 *
4 * FFmpeg is free software; you can redistribute it and/or 4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public 5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either 6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version. 7 * version 2.1 of the License, or (at your option) any later version.
8 * 8 *
9 * FFmpeg is distributed in the hope that it will be useful, 9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details. 12 * Lesser General Public License for more details.
13 * 13 *
14 * You should have received a copy of the GNU Lesser General Public 14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software 15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */ 17 */
18 18
19 #ifndef AVUTIL_ARM_BSWAP_H 19 #ifndef AVUTIL_ARM_BSWAP_H
20 #define AVUTIL_ARM_BSWAP_H 20 #define AVUTIL_ARM_BSWAP_H
21 21
22 #include <stdint.h> 22 #include <stdint.h>
23 #include "config.h" 23 #include "config.h"
24 #include "libavutil/common.h" 24 #include "libavutil/common.h"
25 25
26 #ifdef __ARMCC_VERSION 26 #ifdef __ARMCC_VERSION
27 27
28 #if HAVE_ARMV6 28 #if HAVE_ARMV6
29 #define bswap_16 bswap_16 29 #define bswap_16 bswap_16
30 static av_always_inline av_const uint16_t bswap_16(uint16_t x) 30 static av_always_inline av_const unsigned bswap_16(unsigned x)
31 { 31 {
32 __asm { rev16 x, x } 32 __asm { rev16 x, x }
33 return x; 33 return x;
34 } 34 }
35 35
36 #define bswap_32 bswap_32 36 #define bswap_32 bswap_32
37 static av_always_inline av_const uint32_t bswap_32(uint32_t x) 37 static av_always_inline av_const uint32_t bswap_32(uint32_t x)
38 { 38 {
39 return __rev(x); 39 return __rev(x);
40 } 40 }
41 #endif /* HAVE_ARMV6 */ 41 #endif /* HAVE_ARMV6 */
42 42
43 #elif HAVE_INLINE_ASM 43 #elif HAVE_INLINE_ASM
44 44
45 #if HAVE_ARMV6 45 #if HAVE_ARMV6
46 #define bswap_16 bswap_16 46 #define bswap_16 bswap_16
47 static av_always_inline av_const uint16_t bswap_16(uint16_t x) 47 static av_always_inline av_const unsigned bswap_16(unsigned x)
48 { 48 {
49 __asm__("rev16 %0, %0" : "+r"(x)); 49 __asm__("rev16 %0, %0" : "+r"(x));
50 return x; 50 return x;
51 } 51 }
52 #endif 52 #endif
53 53
54 #define bswap_32 bswap_32 54 #define bswap_32 bswap_32
55 static av_always_inline av_const uint32_t bswap_32(uint32_t x) 55 static av_always_inline av_const uint32_t bswap_32(uint32_t x)
56 { 56 {
57 #if HAVE_ARMV6 57 #if HAVE_ARMV6
58 __asm__("rev %0, %0" : "+r"(x)); 58 __asm__("rev %0, %0" : "+r"(x));
59 #else 59 #else
60 uint32_t t; 60 uint32_t t;
61 __asm__ ("eor %1, %0, %0, ror #16 \n\t" 61 __asm__ ("eor %1, %0, %0, ror #16 \n\t"
62 "bic %1, %1, #0xFF0000 \n\t" 62 "bic %1, %1, #0xFF0000 \n\t"
63 "mov %0, %0, ror #8 \n\t" 63 "mov %0, %0, ror #8 \n\t"
64 "eor %0, %0, %1, lsr #8 \n\t" 64 "eor %0, %0, %1, lsr #8 \n\t"
65 : "+r"(x), "=&r"(t)); 65 : "+r"(x), "=&r"(t));
66 #endif /* HAVE_ARMV6 */ 66 #endif /* HAVE_ARMV6 */
67 return x; 67 return x;
68 } 68 }
69 69
70 #endif /* __ARMCC_VERSION */ 70 #endif /* __ARMCC_VERSION */
71 71
72 #endif /* AVUTIL_ARM_BSWAP_H */ 72 #endif /* AVUTIL_ARM_BSWAP_H */
OLDNEW

Powered by Google App Engine
This is Rietveld 408576698