diff -r cd9b7b170fbf -r 16477d1c12b1 project_files/Android-build/SDL-android-project/jni/SDL/src/core/android/SDL_android.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/project_files/Android-build/SDL-android-project/jni/SDL/src/core/android/SDL_android.cpp Thu Jun 23 21:57:53 2011 +0200 @@ -0,0 +1,263 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2011 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" +#include "SDL_stdinc.h" + +#include "SDL_android.h" + +extern "C" { +#include "../../events/SDL_events_c.h" +#include "../../video/android/SDL_androidkeyboard.h" +#include "../../video/android/SDL_androidtouch.h" +#include "../../video/android/SDL_androidvideo.h" + +/* Impelemented in audio/android/SDL_androidaudio.c */ +extern void Android_RunAudioThread(); +} // C + +/******************************************************************************* + This file links the Java side of Android with libsdl +*******************************************************************************/ +#include +#include + + +/******************************************************************************* + Globals +*******************************************************************************/ +static JNIEnv* mEnv = NULL; +static JNIEnv* mAudioEnv = NULL; + +// Main activity +static jclass mActivityClass; + +// method signatures +static jmethodID midCreateGLContext; +static jmethodID midFlipBuffers; +static jmethodID midAudioInit; +static jmethodID midAudioWriteShortBuffer; +static jmethodID midAudioWriteByteBuffer; +static jmethodID midAudioQuit; + +// Accelerometer data storage +static float fLastAccelerometer[3]; + + +/******************************************************************************* + Functions called by JNI +*******************************************************************************/ + +// Library init +extern "C" jint JNI_OnLoad(JavaVM* vm, void* reserved) +{ + return JNI_VERSION_1_4; +} + +// Called before SDL_main() to initialize JNI bindings +extern "C" void SDL_Android_Init(JNIEnv* env, jclass cls) +{ + __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL_Android_Init()"); + + mEnv = env; + mActivityClass = cls; + + midCreateGLContext = mEnv->GetStaticMethodID(mActivityClass, + "createGLContext","(II)Z"); + midFlipBuffers = mEnv->GetStaticMethodID(mActivityClass, + "flipBuffers","()V"); + midAudioInit = mEnv->GetStaticMethodID(mActivityClass, + "audioInit", "(IZZI)Ljava/lang/Object;"); + midAudioWriteShortBuffer = mEnv->GetStaticMethodID(mActivityClass, + "audioWriteShortBuffer", "([S)V"); + midAudioWriteByteBuffer = mEnv->GetStaticMethodID(mActivityClass, + "audioWriteByteBuffer", "([B)V"); + midAudioQuit = mEnv->GetStaticMethodID(mActivityClass, + "audioQuit", "()V"); + + if(!midCreateGLContext || !midFlipBuffers || !midAudioInit || + !midAudioWriteShortBuffer || !midAudioWriteByteBuffer || !midAudioQuit) { + __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL: Couldn't locate Java callbacks, check that they're named and typed correctly"); + } +} + +// Resize +extern "C" void Java_org_hedgewars_SDLActivity_onNativeResize( + JNIEnv* env, jclass jcls, + jint width, jint height, jint format) +{ + Android_SetScreenResolution(width, height, format); +} + +// Keydown +extern "C" void Java_org_hedgewars_SDLActivity_onNativeKeyDown( + JNIEnv* env, jclass jcls, jint keycode) +{ + Android_OnKeyDown(keycode); +} + +// Keyup +extern "C" void Java_org_hedgewars_SDLActivity_onNativeKeyUp( + JNIEnv* env, jclass jcls, jint keycode) +{ + Android_OnKeyUp(keycode); +} + +// Touch +extern "C" void Java_org_hedgewars_SDLActivity_onNativeTouch( + JNIEnv* env, jclass jcls, + jint action, jfloat x, jfloat y, jfloat p) +{ + Android_OnTouch(action, x, y, p); +} + +// Accelerometer +extern "C" void Java_org_hedgewars_SDLActivity_onNativeAccel( + JNIEnv* env, jclass jcls, + jfloat x, jfloat y, jfloat z) +{ + fLastAccelerometer[0] = x; + fLastAccelerometer[1] = y; + fLastAccelerometer[2] = z; +} + +// Quit +extern "C" void Java_org_hedgewars_SDLActivity_nativeQuit( + JNIEnv* env, jclass cls) +{ + // Inject a SDL_QUIT event + SDL_SendQuit(); +} + +extern "C" void Java_org_hedgewars_SDLActivity_nativeRunAudioThread( + JNIEnv* env, jclass cls) +{ + /* This is the audio thread, with a different environment */ + mAudioEnv = env; + + Android_RunAudioThread(); +} + + +/******************************************************************************* + Functions called by SDL into Java +*******************************************************************************/ +extern "C" SDL_bool Android_JNI_CreateContext(int majorVersion, int minorVersion) +{ + if (mEnv->CallStaticBooleanMethod(mActivityClass, midCreateGLContext, majorVersion, minorVersion)) { + return SDL_TRUE; + } else { + return SDL_FALSE; + } +} + +extern "C" void Android_JNI_SwapWindow() +{ + mEnv->CallStaticVoidMethod(mActivityClass, midFlipBuffers); +} + +extern "C" void Android_JNI_SetActivityTitle(const char *title) +{ + jmethodID mid; + + mid = mEnv->GetStaticMethodID(mActivityClass,"setActivityTitle","(Ljava/lang/String;)V"); + if (mid) { + mEnv->CallStaticVoidMethod(mActivityClass, mid, mEnv->NewStringUTF(title)); + } +} + +extern "C" void Android_JNI_GetAccelerometerValues(float values[3]) +{ + int i; + for (i = 0; i < 3; ++i) { + values[i] = fLastAccelerometer[i]; + } +} + +// +// Audio support +// +static jboolean audioBuffer16Bit = JNI_FALSE; +static jboolean audioBufferStereo = JNI_FALSE; +static jobject audioBuffer = NULL; +static void* audioBufferPinned = NULL; + +extern "C" int Android_JNI_OpenAudioDevice(int sampleRate, int is16Bit, int channelCount, int desiredBufferFrames) +{ + int audioBufferFrames; + + __android_log_print(ANDROID_LOG_VERBOSE, "SDL", "SDL audio: opening device"); + audioBuffer16Bit = is16Bit; + audioBufferStereo = channelCount > 1; + + audioBuffer = mEnv->CallStaticObjectMethod(mActivityClass, midAudioInit, sampleRate, audioBuffer16Bit, audioBufferStereo, desiredBufferFrames); + + if (audioBuffer == NULL) { + __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL audio: didn't get back a good audio buffer!"); + return 0; + } + audioBuffer = mEnv->NewGlobalRef(audioBuffer); + + jboolean isCopy = JNI_FALSE; + if (audioBuffer16Bit) { + audioBufferPinned = mEnv->GetShortArrayElements((jshortArray)audioBuffer, &isCopy); + audioBufferFrames = mEnv->GetArrayLength((jshortArray)audioBuffer); + } else { + audioBufferPinned = mEnv->GetByteArrayElements((jbyteArray)audioBuffer, &isCopy); + audioBufferFrames = mEnv->GetArrayLength((jbyteArray)audioBuffer); + } + if (audioBufferStereo) { + audioBufferFrames /= 2; + } + + return audioBufferFrames; +} + +extern "C" void * Android_JNI_GetAudioBuffer() +{ + return audioBufferPinned; +} + +extern "C" void Android_JNI_WriteAudioBuffer() +{ + if (audioBuffer16Bit) { + mAudioEnv->ReleaseShortArrayElements((jshortArray)audioBuffer, (jshort *)audioBufferPinned, JNI_COMMIT); + mAudioEnv->CallStaticVoidMethod(mActivityClass, midAudioWriteShortBuffer, (jshortArray)audioBuffer); + } else { + mAudioEnv->ReleaseByteArrayElements((jbyteArray)audioBuffer, (jbyte *)audioBufferPinned, JNI_COMMIT); + mAudioEnv->CallStaticVoidMethod(mActivityClass, midAudioWriteByteBuffer, (jbyteArray)audioBuffer); + } + + /* JNI_COMMIT means the changes are committed to the VM but the buffer remains pinned */ +} + +extern "C" void Android_JNI_CloseAudioDevice() +{ + mEnv->CallStaticVoidMethod(mActivityClass, midAudioQuit); + + if (audioBuffer) { + mEnv->DeleteGlobalRef(audioBuffer); + audioBuffer = NULL; + audioBufferPinned = NULL; + } +} + +/* vi: set ts=4 sw=4 expandtab: */