src/Android/NativeBMP085Listener.cpp

   1 /*
   2 Copyright_License {
   3
   4   XCSoar Glide Computer - http://www.xcsoar.org/
   5   Copyright (C) 2000-2013 The XCSoar Project
   6   A detailed list of copyright holders can be found in the file "AUTHORS".
   7
   8   This program is free software; you can redistribute it and/or
   9   modify it under the terms of the GNU General Public License
  10   as published by the Free Software Foundation; either version 2
  11   of the License, or (at your option) any later version.
  12
  13   This program is distributed in the hope that it will be useful,
  14   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16   GNU General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with this program; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 }
  22 */
  23
  24 #include "NativeBMP085Listener.hpp"
  25 #include "BMP085Listener.hpp"
  26 #include "Atmosphere/Temperature.hpp"
  27 #include "Atmosphere/Pressure.hpp"
  28 #include "Java/Class.hpp"
  29 #include "org_xcsoar_NativeBMP085Listener.h"
  30
  31 #include <stddef.h>
  32
  33 namespace NativeBMP085Listener {
  34   static Java::TrivialClass cls;
  35   static jmethodID ctor;
  36   static jfieldID ptr_field;
  37 };
  38
  39 JNIEXPORT void JNICALL
  40 Java_org_xcsoar_NativeBMP085Listener_onBMP085Values(JNIEnv *env, jobject obj,
  41                                                     jdouble temperature,
  42                                                     jint pressure)
  43 {
  44   jlong ptr = env->GetLongField(obj, NativeBMP085Listener::ptr_field);
  45   if (ptr == 0)
  46     return;
  47
  48   BMP085Listener &listener = *(BMP085Listener *)(void *)ptr;
  49   listener.onBMP085Values(CelsiusToKelvin(fixed(temperature)),
  50                           AtmosphericPressure::Pascal(fixed(pressure)));
  51 }
  52
  53 JNIEXPORT void JNICALL
  54 Java_org_xcsoar_NativeBMP085Listener_onBMP085Error(JNIEnv *env, jobject obj)
  55 {
  56   jlong ptr = env->GetLongField(obj, NativeBMP085Listener::ptr_field);
  57   if (ptr == 0)
  58     return;
  59
  60   BMP085Listener &listener = *(BMP085Listener *)(void *)ptr;
  61   listener.onBMP085Error();
  62 }
  63
  64 void
  65 NativeBMP085Listener::Initialise(JNIEnv *env)
  66 {
  67   cls.Find(env, "org/xcsoar/NativeBMP085Listener");
  68
  69   ctor = env->GetMethodID(cls, "<init>", "(J)V");
  70   ptr_field = env->GetFieldID(cls, "ptr", "J");
  71 }
  72
  73 void
  74 NativeBMP085Listener::Deinitialise(JNIEnv *env)
  75 {
  76   cls.Clear(env);
  77 }
  78
  79 jobject
  80 NativeBMP085Listener::Create(JNIEnv *env, BMP085Listener &listener)
  81 {
  82   assert(cls != NULL);
  83
  84   return env->NewObject(cls, ctor, (jlong)&listener);
  85 }