author | Xeli |
Thu, 11 Aug 2011 14:56:31 +0200 | |
branch | hedgeroid |
changeset 5540 | 76392a62da2f |
parent 5389 | b3cc5b4099f1 |
child 6047 | 10011f051f9c |
permissions | -rw-r--r-- |
5337 | 1 |
/* |
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SDL - Simple DirectMedia Layer |
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Copyright (C) 1997-2011 Sam Lantinga |
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public |
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License as published by the Free Software Foundation; either |
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version 2.1 of the License, or (at your option) any later version. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Lesser General Public License for more details. |
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You should have received a copy of the GNU Lesser General Public |
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License along with this library; if not, write to the Free Software |
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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Sam Lantinga |
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slouken@libsdl.org |
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*/ |
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#include "SDL_config.h" |
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#include "SDL_stdinc.h" |
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#include "SDL_android.h" |
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extern "C" { |
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#include "../../events/SDL_events_c.h" |
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#include "../../video/android/SDL_androidkeyboard.h" |
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#include "../../video/android/SDL_androidtouch.h" |
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#include "../../video/android/SDL_androidvideo.h" |
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/* Impelemented in audio/android/SDL_androidaudio.c */ |
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extern void Android_RunAudioThread(); |
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} // C |
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/******************************************************************************* |
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This file links the Java side of Android with libsdl |
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*******************************************************************************/ |
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#include <jni.h> |
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#include <android/log.h> |
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/******************************************************************************* |
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Globals |
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*******************************************************************************/ |
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static JNIEnv* mEnv = NULL; |
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static JNIEnv* mAudioEnv = NULL; |
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// Main activity |
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static jclass mActivityClass; |
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// method signatures |
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static jmethodID midCreateGLContext; |
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static jmethodID midFlipBuffers; |
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static jmethodID midAudioInit; |
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static jmethodID midAudioWriteShortBuffer; |
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static jmethodID midAudioWriteByteBuffer; |
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static jmethodID midAudioQuit; |
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// Accelerometer data storage |
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static float fLastAccelerometer[3]; |
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/******************************************************************************* |
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Functions called by JNI |
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*******************************************************************************/ |
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// Library init |
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extern "C" jint JNI_OnLoad(JavaVM* vm, void* reserved) |
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{ |
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return JNI_VERSION_1_4; |
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} |
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// Called before SDL_main() to initialize JNI bindings |
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extern "C" void SDL_Android_Init(JNIEnv* env, jclass cls) |
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{ |
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__android_log_print(ANDROID_LOG_INFO, "SDL", "SDL_Android_Init()"); |
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mEnv = env; |
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mActivityClass = cls; |
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midCreateGLContext = mEnv->GetStaticMethodID(mActivityClass, |
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"createGLContext","(II)Z"); |
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midFlipBuffers = mEnv->GetStaticMethodID(mActivityClass, |
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"flipBuffers","()V"); |
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midAudioInit = mEnv->GetStaticMethodID(mActivityClass, |
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"audioInit", "(IZZI)Ljava/lang/Object;"); |
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midAudioWriteShortBuffer = mEnv->GetStaticMethodID(mActivityClass, |
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"audioWriteShortBuffer", "([S)V"); |
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midAudioWriteByteBuffer = mEnv->GetStaticMethodID(mActivityClass, |
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"audioWriteByteBuffer", "([B)V"); |
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midAudioQuit = mEnv->GetStaticMethodID(mActivityClass, |
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"audioQuit", "()V"); |
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if(!midCreateGLContext || !midFlipBuffers || !midAudioInit || |
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!midAudioWriteShortBuffer || !midAudioWriteByteBuffer || !midAudioQuit) { |
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__android_log_print(ANDROID_LOG_WARN, "SDL", "SDL: Couldn't locate Java callbacks, check that they're named and typed correctly"); |
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} |
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} |
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// Resize |
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changeset
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extern "C" void Java_org_hedgewars_mobile_SDLActivity_onNativeResize( |
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JNIEnv* env, jclass jcls, |
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jint width, jint height, jint format) |
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{ |
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Android_SetScreenResolution(width, height, format); |
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} |
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// Keydown |
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extern "C" void Java_org_hedgewars_mobile_SDLActivity_onNativeKeyDown( |
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JNIEnv* env, jclass jcls, jint keycode) |
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{ |
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Android_OnKeyDown(keycode); |
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} |
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// Keyup |
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extern "C" void Java_org_hedgewars_mobile_SDLActivity_onNativeKeyUp( |
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JNIEnv* env, jclass jcls, jint keycode) |
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{ |
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Android_OnKeyUp(keycode); |
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} |
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// Touch |
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extern "C" void Java_org_hedgewars_mobile_SDLActivity_onNativeTouch( |
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JNIEnv* env, jclass jcls, |
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jint action, jint pointerId, jfloat x, jfloat y, jfloat p) |
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{ |
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Android_OnTouch(action, pointerId, x, y, p); |
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} |
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// Accelerometer |
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extern "C" void Java_org_hedgewars_mobile_SDLActivity_onNativeAccel( |
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JNIEnv* env, jclass jcls, |
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jfloat x, jfloat y, jfloat z) |
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{ |
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fLastAccelerometer[0] = x; |
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fLastAccelerometer[1] = y; |
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fLastAccelerometer[2] = z; |
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} |
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// Quit |
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extern "C" void Java_org_hedgewars_mobile_SDLActivity_nativeQuit( |
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JNIEnv* env, jclass cls) |
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{ |
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// Inject a SDL_QUIT event |
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SDL_SendQuit(); |
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} |
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5389
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changeset
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extern "C" void Java_org_hedgewars_mobile_SDLActivity_nativeRunAudioThread( |
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JNIEnv* env, jclass cls) |
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{ |
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/* This is the audio thread, with a different environment */ |
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mAudioEnv = env; |
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Android_RunAudioThread(); |
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} |
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/******************************************************************************* |
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Functions called by SDL into Java |
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*******************************************************************************/ |
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extern "C" SDL_bool Android_JNI_CreateContext(int majorVersion, int minorVersion) |
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{ |
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if (mEnv->CallStaticBooleanMethod(mActivityClass, midCreateGLContext, majorVersion, minorVersion)) { |
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return SDL_TRUE; |
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} else { |
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return SDL_FALSE; |
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} |
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} |
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extern "C" void Android_JNI_SwapWindow() |
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{ |
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mEnv->CallStaticVoidMethod(mActivityClass, midFlipBuffers); |
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} |
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extern "C" void Android_JNI_SetActivityTitle(const char *title) |
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{ |
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jmethodID mid; |
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mid = mEnv->GetStaticMethodID(mActivityClass,"setActivityTitle","(Ljava/lang/String;)V"); |
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if (mid) { |
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mEnv->CallStaticVoidMethod(mActivityClass, mid, mEnv->NewStringUTF(title)); |
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} |
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} |
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extern "C" void Android_JNI_GetAccelerometerValues(float values[3]) |
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{ |
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int i; |
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for (i = 0; i < 3; ++i) { |
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values[i] = fLastAccelerometer[i]; |
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} |
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} |
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// |
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// Audio support |
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// |
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static jboolean audioBuffer16Bit = JNI_FALSE; |
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static jboolean audioBufferStereo = JNI_FALSE; |
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static jobject audioBuffer = NULL; |
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static void* audioBufferPinned = NULL; |
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extern "C" int Android_JNI_OpenAudioDevice(int sampleRate, int is16Bit, int channelCount, int desiredBufferFrames) |
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{ |
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int audioBufferFrames; |
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__android_log_print(ANDROID_LOG_VERBOSE, "SDL", "SDL audio: opening device"); |
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audioBuffer16Bit = is16Bit; |
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audioBufferStereo = channelCount > 1; |
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audioBuffer = mEnv->CallStaticObjectMethod(mActivityClass, midAudioInit, sampleRate, audioBuffer16Bit, audioBufferStereo, desiredBufferFrames); |
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if (audioBuffer == NULL) { |
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__android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: didn't get back a good audio buffer!"); |
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return 0; |
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} |
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audioBuffer = mEnv->NewGlobalRef(audioBuffer); |
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jboolean isCopy = JNI_FALSE; |
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if (audioBuffer16Bit) { |
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audioBufferPinned = mEnv->GetShortArrayElements((jshortArray)audioBuffer, &isCopy); |
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audioBufferFrames = mEnv->GetArrayLength((jshortArray)audioBuffer); |
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} else { |
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audioBufferPinned = mEnv->GetByteArrayElements((jbyteArray)audioBuffer, &isCopy); |
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audioBufferFrames = mEnv->GetArrayLength((jbyteArray)audioBuffer); |
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} |
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if (audioBufferStereo) { |
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audioBufferFrames /= 2; |
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} |
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return audioBufferFrames; |
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} |
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extern "C" void * Android_JNI_GetAudioBuffer() |
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{ |
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return audioBufferPinned; |
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} |
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extern "C" void Android_JNI_WriteAudioBuffer() |
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{ |
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if (audioBuffer16Bit) { |
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mAudioEnv->ReleaseShortArrayElements((jshortArray)audioBuffer, (jshort *)audioBufferPinned, JNI_COMMIT); |
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mAudioEnv->CallStaticVoidMethod(mActivityClass, midAudioWriteShortBuffer, (jshortArray)audioBuffer); |
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} else { |
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mAudioEnv->ReleaseByteArrayElements((jbyteArray)audioBuffer, (jbyte *)audioBufferPinned, JNI_COMMIT); |
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mAudioEnv->CallStaticVoidMethod(mActivityClass, midAudioWriteByteBuffer, (jbyteArray)audioBuffer); |
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} |
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/* JNI_COMMIT means the changes are committed to the VM but the buffer remains pinned */ |
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} |
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extern "C" void Android_JNI_CloseAudioDevice() |
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{ |
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mEnv->CallStaticVoidMethod(mActivityClass, midAudioQuit); |
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if (audioBuffer) { |
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mEnv->DeleteGlobalRef(audioBuffer); |
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audioBuffer = NULL; |
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audioBufferPinned = NULL; |
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} |
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} |
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/* vi: set ts=4 sw=4 expandtab: */ |