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annotate android-project/src/org/libsdl/app/SDLActivity.java @ 4980:d9fdff945ec9

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A bit of cleanup in the Android driver
author Sam Lantinga <slouken@libsdl.org>
date Wed, 12 Jan 2011 13:52:41 -0800
parents 91d0085b7560
children 55b82067815b
rev   line source
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1 package org.libsdl.app;
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2
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3 import javax.microedition.khronos.egl.EGLConfig;
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4 import javax.microedition.khronos.opengles.GL10;
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5 import javax.microedition.khronos.egl.*;
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6
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7 import android.app.*;
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8 import android.content.*;
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9 import android.view.*;
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10 import android.os.*;
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11 import android.util.Log;
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12 import android.graphics.*;
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13 import android.text.method.*;
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14 import android.text.*;
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15 import android.media.*;
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16 import android.hardware.*;
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17 import android.content.*;
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18
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19 import java.lang.*;
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20
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21
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22 /**
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23 SDL Activity
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24 */
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25 public class SDLActivity extends Activity {
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26
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27 //Main components
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28 private static SDLActivity mSingleton;
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29 private static SDLSurface mSurface;
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30
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31 //Audio
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32 private static AudioTrack mAudioTrack;
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33 private static boolean bAudioIsEnabled;
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34
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35 //Sensors
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36 private static boolean bAccelIsEnabled;
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37
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38 //feature IDs. Must match up on the C side as well.
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39 private static int FEATURE_AUDIO = 1;
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40 private static int FEATURE_ACCEL = 2;
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41
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42 //Load the .so
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43 static {
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44 System.loadLibrary("SDL");
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45 System.loadLibrary("main");
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46 }
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47
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48 //Setup
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49 protected void onCreate(Bundle savedInstanceState) {
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50 super.onCreate(savedInstanceState);
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51
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52 //So we can call stuff from static callbacks
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53 mSingleton = this;
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54
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55 //Set up the surface
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56 mSurface = new SDLSurface(getApplication());
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57 setContentView(mSurface);
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58 SurfaceHolder holder = mSurface.getHolder();
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59 holder.setType(SurfaceHolder.SURFACE_TYPE_GPU);
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60
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61 }
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62
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63 //Audio
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64 public static boolean initAudio(){
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65
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66 //blah. Hardcoded things are bad. FIXME when we have more sound stuff
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67 //working properly.
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68 mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC,
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69 11025,
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70 AudioFormat.CHANNEL_CONFIGURATION_MONO,
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71 AudioFormat.ENCODING_PCM_8BIT,
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72 2048,
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73 AudioTrack.MODE_STREAM);
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74 bAudioIsEnabled = true;
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75 return true;
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76 }
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77
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78 //Accel
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79 public static boolean initAccel(){
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80 mSurface.enableSensor(Sensor.TYPE_ACCELEROMETER, true);
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81 bAccelIsEnabled = true;
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82 return true;
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83 }
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84
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85 public static boolean closeAccel(){
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86 mSurface.enableSensor(Sensor.TYPE_ACCELEROMETER, false);
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87 bAccelIsEnabled = false;
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88 return true;
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89 }
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90
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91
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92 //Events
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93 protected void onPause() {
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94 super.onPause();
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95 }
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96
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97 protected void onResume() {
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98 super.onResume();
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99 }
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100
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101
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102
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103
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104
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105 //C functions we call
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106 public static native void nativeInit();
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107 public static native void nativeQuit();
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108 public static native void nativeSetScreenSize(int width, int height);
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109 public static native void onNativeKeyDown(int keycode);
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110 public static native void onNativeKeyUp(int keycode);
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111 public static native void onNativeTouch(int action, float x,
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112 float y, float p);
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113 public static native void onNativeResize(int x, int y, int format);
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114 public static native void onNativeAccel(float x, float y, float z);
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115
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116
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117
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118 //Java functions called from C
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119 private static void createGLContext(){
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120 mSurface.initEGL();
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121 }
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122
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123 public static void flipBuffers(){
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124 mSurface.flipEGL();
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125 }
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126
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127 public static void updateAudio(byte [] buf){
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128
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129 if(mAudioTrack == null){
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130 return;
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131 }
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132
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133 mAudioTrack.write(buf, 0, buf.length);
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134 mAudioTrack.play();
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135
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136 Log.v("SDL","Played some audio");
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137 }
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138
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139 public static void enableFeature(int featureid, int enabled){
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140 Log.v("SDL","Feature " + featureid + " = " + enabled);
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141
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142 //Yuck. This is all horribly inelegent. If it gets to more than a few
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143 //'features' I'll rip this out and make something nicer, I promise :)
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144 if(featureid == FEATURE_AUDIO){
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145 if(enabled == 1){
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146 initAudio();
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147 }else{
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148 //We don't have one of these yet...
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149 //closeAudio();
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150 }
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151 }
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152
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153 else if(featureid == FEATURE_ACCEL){
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154 if(enabled == 1){
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155 initAccel();
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156 }else{
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157 closeAccel();
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158 }
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159 }
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160 }
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161
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162 }
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163
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164 /**
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165 Simple nativeInit() runnable
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166 */
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167 class SDLRunner implements Runnable{
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168 public void run(){
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169 //SDLActivity.initAudio();
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170
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171 //Runs SDL_main()
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172 SDLActivity.nativeInit();
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173
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174 Log.v("SDL","SDL thread terminated");
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175 }
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176 }
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177
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178
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179 /**
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180 SDLSurface. This is what we draw on, so we need to know when it's created
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181 in order to do anything useful.
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182
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183 Because of this, that's where we set up the SDL thread
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184 */
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185 class SDLSurface extends SurfaceView implements SurfaceHolder.Callback,
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186 View.OnKeyListener, View.OnTouchListener, SensorEventListener {
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187
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188 //This is what SDL runs in. It invokes SDL_main(), eventually
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189 private Thread mSDLThread;
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190
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191 //EGL private objects
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192 private EGLContext mEGLContext;
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193 private EGLSurface mEGLSurface;
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194 private EGLDisplay mEGLDisplay;
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195
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196 //Sensors
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197 private static SensorManager mSensorManager;
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198
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199 //Startup
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200 public SDLSurface(Context context) {
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201 super(context);
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202 getHolder().addCallback(this);
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203
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204 setFocusable(true);
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205 setFocusableInTouchMode(true);
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206 requestFocus();
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207 setOnKeyListener(this);
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208 setOnTouchListener(this);
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209
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210 mSensorManager = (SensorManager)context.getSystemService("sensor");
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211 }
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212
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213 //Called when we have a valid drawing surface
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214 public void surfaceCreated(SurfaceHolder holder) {
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215 Log.v("SDL","Surface created");
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216
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217 int width = getWidth();
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218 int height = getHeight();
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219
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220 //Set the width and height variables in C before we start SDL so we have
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221 //it available on init
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222 SDLActivity.nativeSetScreenSize(width, height);
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223
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224 //Now start up the C app thread
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225 mSDLThread = new Thread(new SDLRunner(), "SDLThread");
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226 mSDLThread.start();
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227 }
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228
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229 //Called when we lose the surface
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230 public void surfaceDestroyed(SurfaceHolder holder) {
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231 Log.v("SDL","Surface destroyed");
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232
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233 SDLActivity.nativeQuit();
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234
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235 //Now wait for the SDL thread to quit
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236 try{
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237 mSDLThread.wait();
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238 }catch(Exception e){
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239 Log.v("SDL","Problem stopping thread: " + e);
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240 }
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241 }
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242
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243 //Called when the surface is resized
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244 public void surfaceChanged(SurfaceHolder holder, int format,
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245 int width, int height) {
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246 Log.v("SDL","Surface resized");
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247
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248 SDLActivity.onNativeResize(width, height, format);
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249 }
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250
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251 //unused
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252 public void onDraw(Canvas canvas) {}
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253
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254
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255 //EGL functions
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256 public boolean initEGL(){
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257 Log.v("SDL","Starting up");
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258
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259 try{
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260
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261 EGL10 egl = (EGL10)EGLContext.getEGL();
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262
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263 EGLDisplay dpy = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
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264
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265 int[] version = new int[2];
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266 egl.eglInitialize(dpy, version);
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267
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268 int[] configSpec = {
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269 //EGL10.EGL_DEPTH_SIZE, 16,
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270 EGL10.EGL_NONE
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271 };
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272 EGLConfig[] configs = new EGLConfig[1];
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273 int[] num_config = new int[1];
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274 egl.eglChooseConfig(dpy, configSpec, configs, 1, num_config);
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275 EGLConfig config = configs[0];
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276
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277 EGLContext ctx = egl.eglCreateContext(dpy, config, EGL10.EGL_NO_CONTEXT, null);
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278
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279 EGLSurface surface = egl.eglCreateWindowSurface(dpy, config, this, null);
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280
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281 egl.eglMakeCurrent(dpy, surface, surface, ctx);
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282
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283 mEGLContext = ctx;
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284 mEGLDisplay = dpy;
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285 mEGLSurface = surface;
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286
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287
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288 }catch(Exception e){
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289 Log.v("SDL", e + "");
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290 for(StackTraceElement s : e.getStackTrace()){
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291 Log.v("SDL", s.toString());
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292 }
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293 }
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294 Log.v("SDL","Done making!");
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295
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296 return true;
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297 }
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298
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299 //EGL buffer flip
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300 public void flipEGL(){
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301 try{
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302
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303 EGL10 egl = (EGL10)EGLContext.getEGL();
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304 GL10 gl = (GL10)mEGLContext.getGL();
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305
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306 egl.eglWaitNative(EGL10.EGL_NATIVE_RENDERABLE, null);
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307
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308 //drawing here
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309
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310 egl.eglWaitGL();
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311
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312 egl.eglSwapBuffers(mEGLDisplay, mEGLSurface);
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313
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314
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315 }catch(Exception e){
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316 Log.v("SDL", "flipEGL(): " + e);
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317
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318 for(StackTraceElement s : e.getStackTrace()){
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319 Log.v("SDL", s.toString());
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320 }
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321 }
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322 }
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323
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324
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325
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326 //Key events
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327 public boolean onKey(View v, int keyCode, KeyEvent event){
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328
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329 if(event.getAction() == KeyEvent.ACTION_DOWN){
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330 SDLActivity.onNativeKeyDown(keyCode);
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331 return true;
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332 }
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333
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334 else if(event.getAction() == KeyEvent.ACTION_UP){
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335 SDLActivity.onNativeKeyUp(keyCode);
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336 return true;
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337 }
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338
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339 return false;
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340 }
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341
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342 //Touch events
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343 public boolean onTouch(View v, MotionEvent event){
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344
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345 int action = event.getAction();
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346 float x = event.getX();
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347 float y = event.getY();
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348 float p = event.getPressure();
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349
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350 //TODO: Anything else we need to pass?
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351 SDLActivity.onNativeTouch(action, x, y, p);
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352 return true;
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353 }
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354
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355 //Sensor events
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356 public void enableSensor(int sensortype, boolean enabled){
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357 //TODO: This uses getDefaultSensor - what if we have >1 accels?
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358 if(enabled){
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359 mSensorManager.registerListener(this,
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360 mSensorManager.getDefaultSensor(sensortype),
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361 SensorManager.SENSOR_DELAY_GAME, null);
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362 }else{
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363 mSensorManager.unregisterListener(this,
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364 mSensorManager.getDefaultSensor(sensortype));
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365 }
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366 }
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367
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368 public void onAccuracyChanged(Sensor sensor, int accuracy){
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369 //TODO
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370 }
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371
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372 public void onSensorChanged(SensorEvent event){
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373 if(event.sensor.getType() == Sensor.TYPE_ACCELEROMETER){
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374 SDLActivity.onNativeAccel( event.values[0],
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375 event.values[1],
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376 event.values[2] );
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377 }
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378 }
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379
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380
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381 }
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382
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383