593 lines
20 KiB
Java
593 lines
20 KiB
Java
package org.libsdl.app;
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import javax.microedition.khronos.egl.EGL10;
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import javax.microedition.khronos.egl.EGLConfig;
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import javax.microedition.khronos.egl.EGLContext;
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import javax.microedition.khronos.opengles.GL10;
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import javax.microedition.khronos.egl.*;
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import android.app.*;
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import android.content.*;
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import android.view.*;
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import android.os.*;
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import android.util.Log;
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import android.graphics.*;
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import android.text.method.*;
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import android.text.*;
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import android.media.*;
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import android.hardware.*;
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import android.content.*;
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import java.lang.*;
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/**
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SDL Activity
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*/
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public class SDLActivity extends Activity {
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// Keep track of the paused state
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public static boolean mIsPaused;
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// Main components
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private static SDLActivity mSingleton;
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private static SDLSurface mSurface;
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// This is what SDL runs in. It invokes SDL_main(), eventually
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private static Thread mSDLThread;
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// Audio
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private static Thread mAudioThread;
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private static AudioTrack mAudioTrack;
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// EGL private objects
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private static EGLContext mEGLContext;
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private static EGLSurface mEGLSurface;
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private static EGLDisplay mEGLDisplay;
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private static EGLConfig mEGLConfig;
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private static int mGLMajor, mGLMinor;
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// Load the .so
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static {
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System.loadLibrary("SDL2");
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//System.loadLibrary("SDL2_image");
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//System.loadLibrary("SDL2_mixer");
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//System.loadLibrary("SDL2_ttf");
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System.loadLibrary("main");
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}
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// Setup
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protected void onCreate(Bundle savedInstanceState) {
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//Log.v("SDL", "onCreate()");
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super.onCreate(savedInstanceState);
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// So we can call stuff from static callbacks
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mSingleton = this;
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// Keep track of the paused state
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mIsPaused = false;
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// Set up the surface
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mSurface = new SDLSurface(getApplication());
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setContentView(mSurface);
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SurfaceHolder holder = mSurface.getHolder();
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}
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// Events
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/*protected void onPause() {
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Log.v("SDL", "onPause()");
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super.onPause();
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// Don't call SDLActivity.nativePause(); here, it will be called by SDLSurface::surfaceDestroyed
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}
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protected void onResume() {
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Log.v("SDL", "onResume()");
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super.onResume();
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// Don't call SDLActivity.nativeResume(); here, it will be called via SDLSurface::surfaceChanged->SDLActivity::startApp
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}*/
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protected void onDestroy() {
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super.onDestroy();
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Log.v("SDL", "onDestroy()");
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// Send a quit message to the application
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SDLActivity.nativeQuit();
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// Now wait for the SDL thread to quit
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if (mSDLThread != null) {
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try {
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mSDLThread.join();
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} catch(Exception e) {
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Log.v("SDL", "Problem stopping thread: " + e);
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}
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mSDLThread = null;
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//Log.v("SDL", "Finished waiting for SDL thread");
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}
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}
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// Messages from the SDLMain thread
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static int COMMAND_CHANGE_TITLE = 1;
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// Handler for the messages
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Handler commandHandler = new Handler() {
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public void handleMessage(Message msg) {
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if (msg.arg1 == COMMAND_CHANGE_TITLE) {
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setTitle((String)msg.obj);
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}
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}
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};
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// Send a message from the SDLMain thread
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void sendCommand(int command, Object data) {
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Message msg = commandHandler.obtainMessage();
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msg.arg1 = command;
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msg.obj = data;
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commandHandler.sendMessage(msg);
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}
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// C functions we call
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public static native void nativeInit();
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public static native void nativeQuit();
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public static native void nativePause();
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public static native void nativeResume();
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public static native void onNativeResize(int x, int y, int format);
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public static native void onNativeKeyDown(int keycode);
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public static native void onNativeKeyUp(int keycode);
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public static native void onNativeTouch(int touchDevId, int pointerFingerId,
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int action, float x,
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float y, float p);
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public static native void onNativeAccel(float x, float y, float z);
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public static native void nativeRunAudioThread();
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// Java functions called from C
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public static boolean createGLContext(int majorVersion, int minorVersion) {
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return initEGL(majorVersion, minorVersion);
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}
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public static void flipBuffers() {
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flipEGL();
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}
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public static void setActivityTitle(String title) {
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// Called from SDLMain() thread and can't directly affect the view
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mSingleton.sendCommand(COMMAND_CHANGE_TITLE, title);
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}
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public static Context getContext() {
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return mSingleton;
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}
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public static void startApp() {
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// Start up the C app thread
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if (mSDLThread == null) {
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mSDLThread = new Thread(new SDLMain(), "SDLThread");
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mSDLThread.start();
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}
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else {
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/*
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* Some Android variants may send multiple surfaceChanged events, so we don't need to resume every time
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* every time we get one of those events, only if it comes after surfaceDestroyed
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*/
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if (mIsPaused) {
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SDLActivity.nativeResume();
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SDLActivity.mIsPaused = false;
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}
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}
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}
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// EGL functions
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public static boolean initEGL(int majorVersion, int minorVersion) {
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if (SDLActivity.mEGLDisplay == null) {
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//Log.v("SDL", "Starting up OpenGL ES " + majorVersion + "." + minorVersion);
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try {
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EGL10 egl = (EGL10)EGLContext.getEGL();
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EGLDisplay dpy = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
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int[] version = new int[2];
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egl.eglInitialize(dpy, version);
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int EGL_OPENGL_ES_BIT = 1;
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int EGL_OPENGL_ES2_BIT = 4;
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int renderableType = 0;
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if (majorVersion == 2) {
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renderableType = EGL_OPENGL_ES2_BIT;
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} else if (majorVersion == 1) {
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renderableType = EGL_OPENGL_ES_BIT;
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}
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int[] configSpec = {
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//EGL10.EGL_DEPTH_SIZE, 16,
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EGL10.EGL_RENDERABLE_TYPE, renderableType,
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EGL10.EGL_NONE
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};
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EGLConfig[] configs = new EGLConfig[1];
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int[] num_config = new int[1];
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if (!egl.eglChooseConfig(dpy, configSpec, configs, 1, num_config) || num_config[0] == 0) {
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Log.e("SDL", "No EGL config available");
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return false;
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}
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EGLConfig config = configs[0];
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/*int EGL_CONTEXT_CLIENT_VERSION=0x3098;
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int contextAttrs[] = new int[] { EGL_CONTEXT_CLIENT_VERSION, majorVersion, EGL10.EGL_NONE };
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EGLContext ctx = egl.eglCreateContext(dpy, config, EGL10.EGL_NO_CONTEXT, contextAttrs);
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if (ctx == EGL10.EGL_NO_CONTEXT) {
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Log.e("SDL", "Couldn't create context");
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return false;
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}
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SDLActivity.mEGLContext = ctx;*/
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SDLActivity.mEGLDisplay = dpy;
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SDLActivity.mEGLConfig = config;
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SDLActivity.mGLMajor = majorVersion;
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SDLActivity.mGLMinor = minorVersion;
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SDLActivity.createEGLSurface();
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} catch(Exception e) {
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Log.v("SDL", e + "");
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for (StackTraceElement s : e.getStackTrace()) {
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Log.v("SDL", s.toString());
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}
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}
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}
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else SDLActivity.createEGLSurface();
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return true;
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}
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public static boolean createEGLContext() {
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EGL10 egl = (EGL10)EGLContext.getEGL();
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int EGL_CONTEXT_CLIENT_VERSION=0x3098;
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int contextAttrs[] = new int[] { EGL_CONTEXT_CLIENT_VERSION, SDLActivity.mGLMajor, EGL10.EGL_NONE };
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SDLActivity.mEGLContext = egl.eglCreateContext(SDLActivity.mEGLDisplay, SDLActivity.mEGLConfig, EGL10.EGL_NO_CONTEXT, contextAttrs);
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if (SDLActivity.mEGLContext == EGL10.EGL_NO_CONTEXT) {
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Log.e("SDL", "Couldn't create context");
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return false;
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}
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return true;
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}
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public static boolean createEGLSurface() {
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if (SDLActivity.mEGLDisplay != null && SDLActivity.mEGLConfig != null) {
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EGL10 egl = (EGL10)EGLContext.getEGL();
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if (SDLActivity.mEGLContext == null) createEGLContext();
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Log.v("SDL", "Creating new EGL Surface");
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EGLSurface surface = egl.eglCreateWindowSurface(SDLActivity.mEGLDisplay, SDLActivity.mEGLConfig, SDLActivity.mSurface, null);
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if (surface == EGL10.EGL_NO_SURFACE) {
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Log.e("SDL", "Couldn't create surface");
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return false;
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}
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if (egl.eglGetCurrentContext() != SDLActivity.mEGLContext) {
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if (!egl.eglMakeCurrent(SDLActivity.mEGLDisplay, surface, surface, SDLActivity.mEGLContext)) {
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Log.e("SDL", "Old EGL Context doesnt work, trying with a new one");
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// TODO: Notify the user via a message that the old context could not be restored, and that textures need to be manually restored.
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createEGLContext();
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if (!egl.eglMakeCurrent(SDLActivity.mEGLDisplay, surface, surface, SDLActivity.mEGLContext)) {
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Log.e("SDL", "Failed making EGL Context current");
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return false;
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}
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}
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}
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SDLActivity.mEGLSurface = surface;
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return true;
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}
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return false;
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}
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// EGL buffer flip
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public static void flipEGL() {
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try {
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EGL10 egl = (EGL10)EGLContext.getEGL();
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egl.eglWaitNative(EGL10.EGL_CORE_NATIVE_ENGINE, null);
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// drawing here
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egl.eglWaitGL();
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egl.eglSwapBuffers(SDLActivity.mEGLDisplay, SDLActivity.mEGLSurface);
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} catch(Exception e) {
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Log.v("SDL", "flipEGL(): " + e);
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for (StackTraceElement s : e.getStackTrace()) {
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Log.v("SDL", s.toString());
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}
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}
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}
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// Audio
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private static Object buf;
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public static Object audioInit(int sampleRate, boolean is16Bit, boolean isStereo, int desiredFrames) {
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int channelConfig = isStereo ? AudioFormat.CHANNEL_CONFIGURATION_STEREO : AudioFormat.CHANNEL_CONFIGURATION_MONO;
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int audioFormat = is16Bit ? AudioFormat.ENCODING_PCM_16BIT : AudioFormat.ENCODING_PCM_8BIT;
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int frameSize = (isStereo ? 2 : 1) * (is16Bit ? 2 : 1);
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Log.v("SDL", "SDL audio: wanted " + (isStereo ? "stereo" : "mono") + " " + (is16Bit ? "16-bit" : "8-bit") + " " + ((float)sampleRate / 1000f) + "kHz, " + desiredFrames + " frames buffer");
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// Let the user pick a larger buffer if they really want -- but ye
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// gods they probably shouldn't, the minimums are horrifyingly high
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// latency already
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desiredFrames = Math.max(desiredFrames, (AudioTrack.getMinBufferSize(sampleRate, channelConfig, audioFormat) + frameSize - 1) / frameSize);
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mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate,
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channelConfig, audioFormat, desiredFrames * frameSize, AudioTrack.MODE_STREAM);
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audioStartThread();
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Log.v("SDL", "SDL audio: got " + ((mAudioTrack.getChannelCount() >= 2) ? "stereo" : "mono") + " " + ((mAudioTrack.getAudioFormat() == AudioFormat.ENCODING_PCM_16BIT) ? "16-bit" : "8-bit") + " " + ((float)mAudioTrack.getSampleRate() / 1000f) + "kHz, " + desiredFrames + " frames buffer");
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if (is16Bit) {
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buf = new short[desiredFrames * (isStereo ? 2 : 1)];
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} else {
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buf = new byte[desiredFrames * (isStereo ? 2 : 1)];
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}
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return buf;
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}
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public static void audioStartThread() {
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mAudioThread = new Thread(new Runnable() {
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public void run() {
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mAudioTrack.play();
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nativeRunAudioThread();
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}
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});
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// I'd take REALTIME if I could get it!
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mAudioThread.setPriority(Thread.MAX_PRIORITY);
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mAudioThread.start();
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}
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public static void audioWriteShortBuffer(short[] buffer) {
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for (int i = 0; i < buffer.length; ) {
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int result = mAudioTrack.write(buffer, i, buffer.length - i);
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if (result > 0) {
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i += result;
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} else if (result == 0) {
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try {
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Thread.sleep(1);
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} catch(InterruptedException e) {
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// Nom nom
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}
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} else {
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Log.w("SDL", "SDL audio: error return from write(short)");
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return;
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}
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}
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}
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public static void audioWriteByteBuffer(byte[] buffer) {
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for (int i = 0; i < buffer.length; ) {
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int result = mAudioTrack.write(buffer, i, buffer.length - i);
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if (result > 0) {
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i += result;
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} else if (result == 0) {
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try {
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Thread.sleep(1);
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} catch(InterruptedException e) {
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// Nom nom
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}
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} else {
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Log.w("SDL", "SDL audio: error return from write(short)");
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return;
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}
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}
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}
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public static void audioQuit() {
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if (mAudioThread != null) {
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try {
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mAudioThread.join();
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} catch(Exception e) {
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Log.v("SDL", "Problem stopping audio thread: " + e);
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}
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mAudioThread = null;
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//Log.v("SDL", "Finished waiting for audio thread");
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}
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if (mAudioTrack != null) {
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mAudioTrack.stop();
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mAudioTrack = null;
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}
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}
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}
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/**
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Simple nativeInit() runnable
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*/
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class SDLMain implements Runnable {
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public void run() {
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// Runs SDL_main()
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SDLActivity.nativeInit();
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//Log.v("SDL", "SDL thread terminated");
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}
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}
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/**
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SDLSurface. This is what we draw on, so we need to know when it's created
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in order to do anything useful.
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Because of this, that's where we set up the SDL thread
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*/
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class SDLSurface extends SurfaceView implements SurfaceHolder.Callback,
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View.OnKeyListener, View.OnTouchListener, SensorEventListener {
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// Sensors
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private static SensorManager mSensorManager;
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// Startup
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public SDLSurface(Context context) {
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super(context);
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getHolder().addCallback(this);
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setFocusable(true);
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setFocusableInTouchMode(true);
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requestFocus();
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setOnKeyListener(this);
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setOnTouchListener(this);
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mSensorManager = (SensorManager)context.getSystemService("sensor");
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}
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// Called when we have a valid drawing surface
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public void surfaceCreated(SurfaceHolder holder) {
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Log.v("SDL", "surfaceCreated()");
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holder.setType(SurfaceHolder.SURFACE_TYPE_GPU);
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enableSensor(Sensor.TYPE_ACCELEROMETER, true);
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}
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// Called when we lose the surface
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public void surfaceDestroyed(SurfaceHolder holder) {
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Log.v("SDL", "surfaceDestroyed()");
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if (!SDLActivity.mIsPaused) {
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SDLActivity.mIsPaused = true;
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SDLActivity.nativePause();
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}
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enableSensor(Sensor.TYPE_ACCELEROMETER, false);
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}
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// Called when the surface is resized
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public void surfaceChanged(SurfaceHolder holder,
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int format, int width, int height) {
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Log.v("SDL", "surfaceChanged()");
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int sdlFormat = 0x85151002; // SDL_PIXELFORMAT_RGB565 by default
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switch (format) {
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case PixelFormat.A_8:
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Log.v("SDL", "pixel format A_8");
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break;
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case PixelFormat.LA_88:
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Log.v("SDL", "pixel format LA_88");
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break;
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case PixelFormat.L_8:
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Log.v("SDL", "pixel format L_8");
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break;
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case PixelFormat.RGBA_4444:
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Log.v("SDL", "pixel format RGBA_4444");
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sdlFormat = 0x85421002; // SDL_PIXELFORMAT_RGBA4444
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break;
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case PixelFormat.RGBA_5551:
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Log.v("SDL", "pixel format RGBA_5551");
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sdlFormat = 0x85441002; // SDL_PIXELFORMAT_RGBA5551
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break;
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case PixelFormat.RGBA_8888:
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Log.v("SDL", "pixel format RGBA_8888");
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sdlFormat = 0x86462004; // SDL_PIXELFORMAT_RGBA8888
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break;
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case PixelFormat.RGBX_8888:
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Log.v("SDL", "pixel format RGBX_8888");
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sdlFormat = 0x86262004; // SDL_PIXELFORMAT_RGBX8888
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break;
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case PixelFormat.RGB_332:
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Log.v("SDL", "pixel format RGB_332");
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sdlFormat = 0x84110801; // SDL_PIXELFORMAT_RGB332
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break;
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case PixelFormat.RGB_565:
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Log.v("SDL", "pixel format RGB_565");
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sdlFormat = 0x85151002; // SDL_PIXELFORMAT_RGB565
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break;
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case PixelFormat.RGB_888:
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Log.v("SDL", "pixel format RGB_888");
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// Not sure this is right, maybe SDL_PIXELFORMAT_RGB24 instead?
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sdlFormat = 0x86161804; // SDL_PIXELFORMAT_RGB888
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break;
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default:
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Log.v("SDL", "pixel format unknown " + format);
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break;
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}
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SDLActivity.onNativeResize(width, height, sdlFormat);
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Log.v("SDL", "Window size:" + width + "x"+height);
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SDLActivity.startApp();
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}
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// unused
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public void onDraw(Canvas canvas) {}
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|
|
|
|
|
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// Key events
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public boolean onKey(View v, int keyCode, KeyEvent event) {
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|
|
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if (event.getAction() == KeyEvent.ACTION_DOWN) {
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//Log.v("SDL", "key down: " + keyCode);
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SDLActivity.onNativeKeyDown(keyCode);
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return true;
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}
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else if (event.getAction() == KeyEvent.ACTION_UP) {
|
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//Log.v("SDL", "key up: " + keyCode);
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SDLActivity.onNativeKeyUp(keyCode);
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return true;
|
|
}
|
|
|
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return false;
|
|
}
|
|
|
|
// Touch events
|
|
public boolean onTouch(View v, MotionEvent event) {
|
|
{
|
|
final int touchDevId = event.getDeviceId();
|
|
final int pointerCount = event.getPointerCount();
|
|
// touchId, pointerId, action, x, y, pressure
|
|
int actionPointerIndex = (event.getAction() & MotionEvent.ACTION_POINTER_ID_MASK) >> MotionEvent. ACTION_POINTER_ID_SHIFT; /* API 8: event.getActionIndex(); */
|
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int pointerFingerId = event.getPointerId(actionPointerIndex);
|
|
int action = (event.getAction() & MotionEvent.ACTION_MASK); /* API 8: event.getActionMasked(); */
|
|
|
|
float x = event.getX(actionPointerIndex);
|
|
float y = event.getY(actionPointerIndex);
|
|
float p = event.getPressure(actionPointerIndex);
|
|
|
|
if (action == MotionEvent.ACTION_MOVE && pointerCount > 1) {
|
|
// TODO send motion to every pointer if its position has
|
|
// changed since prev event.
|
|
for (int i = 0; i < pointerCount; i++) {
|
|
pointerFingerId = event.getPointerId(i);
|
|
x = event.getX(i);
|
|
y = event.getY(i);
|
|
p = event.getPressure(i);
|
|
SDLActivity.onNativeTouch(touchDevId, pointerFingerId, action, x, y, p);
|
|
}
|
|
} else {
|
|
SDLActivity.onNativeTouch(touchDevId, pointerFingerId, action, x, y, p);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Sensor events
|
|
public void enableSensor(int sensortype, boolean enabled) {
|
|
// TODO: This uses getDefaultSensor - what if we have >1 accels?
|
|
if (enabled) {
|
|
mSensorManager.registerListener(this,
|
|
mSensorManager.getDefaultSensor(sensortype),
|
|
SensorManager.SENSOR_DELAY_GAME, null);
|
|
} else {
|
|
mSensorManager.unregisterListener(this,
|
|
mSensorManager.getDefaultSensor(sensortype));
|
|
}
|
|
}
|
|
|
|
public void onAccuracyChanged(Sensor sensor, int accuracy) {
|
|
// TODO
|
|
}
|
|
|
|
public void onSensorChanged(SensorEvent event) {
|
|
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
|
|
SDLActivity.onNativeAccel(event.values[0] / SensorManager.GRAVITY_EARTH,
|
|
event.values[1] / SensorManager.GRAVITY_EARTH,
|
|
event.values[2] / SensorManager.GRAVITY_EARTH);
|
|
}
|
|
}
|
|
|
|
}
|
|
|