Mercurial > sdl-ios-xcode
annotate src/SDL_android.cpp @ 4968:379361d5e425
Jcw87 to Sam
The project files for VS 2005 are still outdated/messed up. I have a patch that will bring the VS 2005 project files up to date with the VS 2008 project files, add the x64 platform to the VS 2005 project files, fix a few issues with x64 in VS 2008, and a few other misc changes that don't really change the output at all.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 09 Jan 2011 08:35:18 -0800 |
parents | 6c645018741e |
children | d9fdff945ec9 |
rev | line source |
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4964
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Build the SDL library as a shared object on Android, so it will work correctly with SDL_image and SDL_ttf.
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2010 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
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24 /******************************************************************************* |
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25 This file links the Java side of Android with libsdl |
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26 *******************************************************************************/ |
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27 #include <jni.h> |
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28 #include <android/log.h> |
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29 |
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30 |
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31 /******************************************************************************* |
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32 Globals |
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33 *******************************************************************************/ |
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34 JavaVM* mVM = NULL; |
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35 JNIEnv* mEnv = NULL; |
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36 JNIEnv* mAudioThreadEnv = NULL; //See the note below for why this is necessary |
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37 |
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38 //Main activity |
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39 jclass mActivityInstance; |
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40 |
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41 //method signatures |
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42 jmethodID midCreateGLContext; |
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43 jmethodID midFlipBuffers; |
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44 jmethodID midEnableFeature; |
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45 jmethodID midUpdateAudio; |
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46 |
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47 extern "C" int Android_OnKeyDown(int keycode); |
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48 extern "C" int Android_OnKeyUp(int keycode); |
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49 extern "C" void Android_SetScreenResolution(int width, int height); |
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50 extern "C" void Android_OnResize(int width, int height, int format); |
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51 extern "C" int SDL_SendQuit(); |
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52 extern "C" void Android_EnableFeature(int featureid, bool enabled); |
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53 |
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54 //If we're not the active app, don't try to render |
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55 bool bRenderingEnabled = false; |
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56 |
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57 //Feature IDs |
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58 static const int FEATURE_AUDIO = 1; |
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59 static const int FEATURE_ACCEL = 2; |
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60 |
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61 //Accelerometer data storage |
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62 float fLastAccelerometer[3]; |
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63 |
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64 |
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65 /******************************************************************************* |
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66 Functions called by JNI |
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67 *******************************************************************************/ |
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68 |
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69 // Library init |
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70 extern "C" jint JNI_OnLoad(JavaVM* vm, void* reserved) |
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71 { |
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72 mVM = vm; |
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73 |
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74 return JNI_VERSION_1_4; |
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75 } |
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76 |
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77 // Called before SDL_main() to initialize JNI bindings |
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78 extern "C" void SDL_Android_Init(JNIEnv* env) |
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79 { |
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80 mEnv = env; |
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81 |
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82 __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL_Android_Init()"); |
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83 |
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84 jclass cls = mEnv->FindClass ("org/libsdl/app/SDLActivity"); |
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85 mActivityInstance = cls; |
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86 midCreateGLContext = mEnv->GetStaticMethodID(cls,"createGLContext","()V"); |
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87 midFlipBuffers = mEnv->GetStaticMethodID(cls,"flipBuffers","()V"); |
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88 midEnableFeature = mEnv->GetStaticMethodID(cls,"enableFeature","(II)V"); |
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89 midUpdateAudio = mEnv->GetStaticMethodID(cls,"updateAudio","([B)V"); |
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90 |
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91 if(!midCreateGLContext || !midFlipBuffers || !midEnableFeature || |
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92 !midUpdateAudio) { |
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93 __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL: Bad mids\n"); |
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94 } else { |
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95 #ifdef DEBUG |
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96 __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL: Good mids\n"); |
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97 #endif |
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98 } |
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99 } |
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100 |
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101 // Keydown |
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102 extern "C" void Java_org_libsdl_app_SDLActivity_onNativeKeyDown(JNIEnv* env, |
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103 jobject obj, jint keycode) |
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104 { |
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105 int r = Android_OnKeyDown(keycode); |
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106 #ifdef DEBUG |
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107 __android_log_print(ANDROID_LOG_INFO, "SDL", |
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108 "SDL: native key down %d, %d\n", keycode, r); |
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109 #endif |
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110 } |
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111 |
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112 // Keyup |
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113 extern "C" void Java_org_libsdl_app_SDLActivity_onNativeKeyUp(JNIEnv* env, |
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114 jobject obj, jint keycode) |
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115 { |
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116 int r = Android_OnKeyUp(keycode); |
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117 #ifdef DEBUG |
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118 __android_log_print(ANDROID_LOG_INFO, "SDL", |
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119 "SDL: native key up %d, %d\n", keycode, r); |
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120 #endif |
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121 } |
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122 |
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123 // Touch |
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124 extern "C" void Java_org_libsdl_app_SDLActivity_onNativeTouch(JNIEnv* env, |
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125 jobject obj, jint action, jfloat x, jfloat y, jfloat p) |
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126 { |
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127 #ifdef DEBUG |
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128 __android_log_print(ANDROID_LOG_INFO, "SDL", |
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129 "SDL: native touch event %d @ %f/%f, pressure %f\n", |
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130 action, x, y, p); |
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131 #endif |
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132 |
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133 //TODO: Pass this off to the SDL multitouch stuff |
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134 } |
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135 |
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136 // Quit |
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137 extern "C" void Java_org_libsdl_app_SDLActivity_nativeQuit( JNIEnv* env, |
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138 jobject obj ) |
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139 { |
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140 // Stop rendering as we're no longer in the foreground |
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141 bRenderingEnabled = false; |
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142 |
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143 // Inject a SDL_QUIT event |
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144 SDL_SendQuit(); |
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145 } |
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146 |
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147 // Screen size |
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148 extern "C" void Java_org_libsdl_app_SDLActivity_nativeSetScreenSize( |
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149 JNIEnv* env, jobject obj, jint width, jint height) |
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150 { |
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151 __android_log_print(ANDROID_LOG_INFO, "SDL", |
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152 "SDL: Set screen size on init: %d/%d\n", width, height); |
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153 Android_SetScreenResolution(width, height); |
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154 } |
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155 |
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156 // Resize |
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157 extern "C" void Java_org_libsdl_app_SDLActivity_onNativeResize( |
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158 JNIEnv* env, jobject obj, jint width, |
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159 jint height, jint format) |
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160 { |
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161 Android_OnResize(width, height, format); |
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162 } |
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163 |
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164 extern "C" void Java_org_libsdl_app_SDLActivity_onNativeAccel( |
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165 JNIEnv* env, jobject obj, |
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166 jfloat x, jfloat y, jfloat z) |
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167 { |
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168 fLastAccelerometer[0] = x; |
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169 fLastAccelerometer[1] = y; |
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170 fLastAccelerometer[2] = z; |
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171 } |
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172 |
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173 |
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174 |
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175 /******************************************************************************* |
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176 Functions called by SDL into Java |
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177 *******************************************************************************/ |
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178 extern "C" void Android_CreateContext() |
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179 { |
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180 __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL: sdl_create_context()\n"); |
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181 |
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182 bRenderingEnabled = true; |
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183 |
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184 mEnv->CallStaticVoidMethod(mActivityInstance, midCreateGLContext ); |
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185 } |
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186 |
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187 extern "C" void Android_Render() |
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188 { |
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189 if (!bRenderingEnabled) { |
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190 return; |
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191 } |
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192 |
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193 // When we get here, we've accumulated a full frame |
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194 mEnv->CallStaticVoidMethod(mActivityInstance, midFlipBuffers); |
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195 } |
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196 |
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197 extern "C" void Android_EnableFeature(int featureid, bool enabled) |
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198 { |
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199 mEnv->CallStaticVoidMethod(mActivityInstance, midEnableFeature, |
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200 featureid, (int)enabled); |
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201 } |
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202 |
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203 extern "C" void Android_UpdateAudioBuffer(unsigned char *buf, int len) |
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204 { |
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205 //Annoyingly we can't just call into Java from any thread. Because the audio |
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206 //callback is dispatched from the SDL audio thread (that wasn't made from |
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207 //java, we have to do some magic here to let the JVM know about the thread. |
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208 //Because everything it touches on the Java side is static anyway, it's |
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209 //not a big deal, just annoying. |
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210 if(!mAudioThreadEnv) { |
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211 __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL: Need to set up audio thread env\n"); |
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212 |
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213 mVM->AttachCurrentThread(&mAudioThreadEnv, NULL); |
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214 |
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215 __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL: ok\n"); |
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216 } |
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217 |
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218 jbyteArray arr = mAudioThreadEnv->NewByteArray(len); |
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219 |
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220 //blah. We probably should rework this so we avoid the copy. |
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221 mAudioThreadEnv->SetByteArrayRegion(arr, 0, len, (jbyte *)buf); |
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222 |
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223 __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL: copied\n"); |
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224 |
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225 mAudioThreadEnv->CallStaticVoidMethod( mActivityInstance, |
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226 midUpdateAudio, arr ); |
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227 |
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228 __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL: invoked\n"); |
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229 |
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230 } |
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231 |