FFmpeg
intreadwrite.h
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1 /*
2  * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg 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 GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef AVUTIL_MIPS_INTREADWRITE_H
22 #define AVUTIL_MIPS_INTREADWRITE_H
23 
24 #include <stdint.h>
25 #include "config.h"
26 
27 #if ARCH_MIPS64 && HAVE_INLINE_ASM && !HAVE_MIPS64R6
28 
29 #define AV_RN32 AV_RN32
30 static av_always_inline uint32_t AV_RN32(const void *p)
31 {
32  struct __attribute__((packed)) u32 { uint32_t v; };
33  const uint8_t *q = p;
34  const struct u32 *pl = (const struct u32 *)(q + 3 * !HAVE_BIGENDIAN);
35  const struct u32 *pr = (const struct u32 *)(q + 3 * HAVE_BIGENDIAN);
36  uint32_t v;
37  __asm__ ("lwl %0, %1 \n\t"
38  "lwr %0, %2 \n\t"
39  : "=&r"(v)
40  : "m"(*pl), "m"(*pr));
41  return v;
42 }
43 
44 #endif /* ARCH_MIPS64 && HAVE_INLINE_ASM && !HAVE_MIPS64R6 */
45 
46 #endif /* AVUTIL_MIPS_INTREADWRITE_H */
uint8_t
#define AV_RN32(p)
Definition: intreadwrite.h:364
__asm__(".macro parse_r var r\n\t""\\var = -1\n\t"_IFC_REG(0) _IFC_REG(1) _IFC_REG(2) _IFC_REG(3) _IFC_REG(4) _IFC_REG(5) _IFC_REG(6) _IFC_REG(7) _IFC_REG(8) _IFC_REG(9) _IFC_REG(10) _IFC_REG(11) _IFC_REG(12) _IFC_REG(13) _IFC_REG(14) _IFC_REG(15) _IFC_REG(16) _IFC_REG(17) _IFC_REG(18) _IFC_REG(19) _IFC_REG(20) _IFC_REG(21) _IFC_REG(22) _IFC_REG(23) _IFC_REG(24) _IFC_REG(25) _IFC_REG(26) _IFC_REG(27) _IFC_REG(28) _IFC_REG(29) _IFC_REG(30) _IFC_REG(31)".iflt \\var\n\t"".error \"Unable to parse register name \\r\"\n\t"".endif\n\t"".endm")
#define av_always_inline
Definition: attributes.h:45