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_AOM_PORTS_ARM_H_
  13 #define AOM_AOM_PORTS_ARM_H_
  14 #include <stdlib.h>
  15
  16 #include "config/aom_config.h"
  17
  18 #ifdef __cplusplus
  19 extern "C" {
  20 #endif
  21
  22 /*ARMv5TE "Enhanced DSP" instructions.*/
  23 #define HAS_EDSP 0x01
  24 /*ARMv6 "Parallel" or "Media" instructions.*/
  25 #define HAS_MEDIA 0x02
  26 /*ARMv7 optional NEON instructions.*/
  27 #define HAS_NEON 0x04
  28
  29 int aom_arm_cpu_caps(void);
  30
  31 // Earlier gcc compilers have issues with some neon intrinsics
  32 #if !defined(__clang__) && defined(__GNUC__) && __GNUC__ == 4 && \
  33     __GNUC_MINOR__ <= 6
  34 #define AOM_INCOMPATIBLE_GCC
  35 #endif
  36
  37 #ifdef __cplusplus
  38 }  // extern "C"
  39 #endif
  40
  41 #endif  // AOM_AOM_PORTS_ARM_H_