aom_ports/arm.h

   1 /*
   2  * Copyright (c) 2016, Alliance for Open Media. All rights reserved
   3  *
   4  * This source code is subject to the terms of the BSD 2 Clause License and
   5  * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
   6  * was not distributed with this source code in the LICENSE file, you can
   7  * obtain it at www.aomedia.org/license/software. If the Alliance for Open
   8  * Media Patent License 1.0 was not distributed with this source code in the
   9  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
  10  */
  11
  12 #ifndef AOM_PORTS_ARM_H_
  13 #define AOM_PORTS_ARM_H_
  14 #include <stdlib.h>
  15 #include "aom_config.h"
  16
  17 #ifdef __cplusplus
  18 extern "C" {
  19 #endif
  20
  21 /*ARMv5TE "Enhanced DSP" instructions.*/
  22 #define HAS_EDSP 0x01
  23 /*ARMv6 "Parallel" or "Media" instructions.*/
  24 #define HAS_MEDIA 0x02
  25 /*ARMv7 optional NEON instructions.*/
  26 #define HAS_NEON 0x04
  27
  28 int arm_cpu_caps(void);
  29
  30 // Earlier gcc compilers have issues with some neon intrinsics
  31 #if !defined(__clang__) && defined(__GNUC__) && __GNUC__ == 4 && \
  32     __GNUC_MINOR__ <= 6
  33 #define AOM_INCOMPATIBLE_GCC
  34 #endif
  35
  36 #ifdef __cplusplus
  37 }  // extern "C"
  38 #endif
  39
  40 #endif  // AOM_PORTS_ARM_H_