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SDLActivity.java
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SDLActivity.java
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package org.libsdl.android;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;
import javax.microedition.khronos.egl.*;
import android.app.*;
import android.content.*;
import android.view.*;
import android.os.*;
import android.util.Log;
import android.graphics.*;
import android.text.method.*;
import android.text.*;
import java.lang.*;
/**
SDL Activity
*/
public class SDLActivity extends Activity {
//Main components
private static SDLActivity mSingleton;
private static SDLSurface mSurface;
//Load the .so
static {
System.loadLibrary("sdltest");
}
//Setup
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//So we can call stuff from static callbacks
mSingleton = this;
//Set up the surface
mSurface = new SDLSurface(getApplication());
setContentView(mSurface);
SurfaceHolder holder = mSurface.getHolder();
holder.setType(SurfaceHolder.SURFACE_TYPE_GPU);
}
//Events
protected void onPause() {
super.onPause();
}
protected void onResume() {
super.onResume();
}
//C functions we call
public static native void nativeInit();
public static native void onNativeKeyDown(int keycode);
public static native void onNativeKeyUp(int keycode);
//Java functions called from C
private static void createGLContext(){
mSurface.initEGL();
}
public static void flipBuffers(){
mSurface.flipEGL();
}
}
/**
Simple nativeInit() runnable
*/
class SDLRunner implements Runnable{
public void run(){
//Runs SDL_main()
SDLActivity.nativeInit();
}
}
/**
SDLSurface. This is what we draw on, so we need to know when it's created
in order to do anything useful.
Because of this, that's where we set up the SDL thread
*/
class SDLSurface extends SurfaceView implements SurfaceHolder.Callback, View.OnKeyListener {
//This is what SDL runs in. It invokes SDL_main(), eventually
private Thread mSDLThread;
//EGL private objects
private EGLContext mEGLContext;
private EGLSurface mEGLSurface;
private EGLDisplay mEGLDisplay;
//Startup
public SDLSurface(Context context) {
super(context);
getHolder().addCallback(this);
setFocusable(true);
setFocusableInTouchMode(true);
requestFocus();
setOnKeyListener(this);
}
//Called when we have a valid drawing surface
public void surfaceCreated(SurfaceHolder holder) {
Log.v("SDL","Surface created");
mSDLThread = new Thread(new SDLRunner(), "SDLThread");
mSDLThread.start();
}
//Called when we lose the surface
public void surfaceDestroyed(SurfaceHolder holder) {
Log.v("SDL","Surface destroyed");
}
//Called when the surface is resized
public void surfaceChanged(SurfaceHolder holder, int format,
int width, int height) {
Log.v("SDL","Surface resized");
}
//unused
public void onDraw(Canvas canvas) {}
//EGL functions
public boolean initEGL(){
Log.v("SDL","Starting up");
try{
EGL10 egl = (EGL10)EGLContext.getEGL();
EGLDisplay dpy = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
int[] version = new int[2];
egl.eglInitialize(dpy, version);
int[] configSpec = {
//EGL10.EGL_DEPTH_SIZE, 16,
EGL10.EGL_NONE
};
EGLConfig[] configs = new EGLConfig[1];
int[] num_config = new int[1];
egl.eglChooseConfig(dpy, configSpec, configs, 1, num_config);
EGLConfig config = configs[0];
EGLContext ctx = egl.eglCreateContext(dpy, config, EGL10.EGL_NO_CONTEXT, null);
EGLSurface surface = egl.eglCreateWindowSurface(dpy, config, this, null);
egl.eglMakeCurrent(dpy, surface, surface, ctx);
mEGLContext = ctx;
mEGLDisplay = dpy;
mEGLSurface = surface;
}catch(Exception e){
Log.v("SDL", e + "");
for(StackTraceElement s : e.getStackTrace()){
Log.v("SDL", s.toString());
}
}
Log.v("SDL","Done making!");
return true;
}
//EGL buffer flip
public void flipEGL(){
try{
EGL10 egl = (EGL10)EGLContext.getEGL();
GL10 gl = (GL10)mEGLContext.getGL();
egl.eglWaitNative(EGL10.EGL_NATIVE_RENDERABLE, null);
//drawing here
egl.eglWaitGL();
egl.eglSwapBuffers(mEGLDisplay, mEGLSurface);
}catch(Exception e){
Log.v("SDL", "flipEGL(): " + e);
for(StackTraceElement s : e.getStackTrace()){
Log.v("SDL", s.toString());
}
}
}
public boolean onKey(View v, int keyCode, KeyEvent event){
if(event.getAction() == KeyEvent.ACTION_DOWN){
SDLActivity.onNativeKeyDown(keyCode);
return true;
}
else if(event.getAction() == KeyEvent.ACTION_UP){
SDLActivity.onNativeKeyUp(keyCode);
return true;
}
return false;
}
}