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Removed the need for libSDL2main.a on Android, and separated JNI initialization out for other integrations

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This commit is contained in:
Sam Lantinga 2017-08-28 14:34:15 -07:00
parent 9341589925
commit dbb0a2aa74
6 changed files with 165 additions and 146 deletions
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122
android-project/src/org/libsdl/app/SDLActivity.java
View file

@ -136,10 +136,11 @@ public class SDLActivity extends Activity {
protected void onCreate(Bundle savedInstanceState) {
Log.v(TAG, "Device: " + android.os.Build.DEVICE);
Log.v(TAG, "Model: " + android.os.Build.MODEL);
Log.v(TAG, "onCreate(): " + mSingleton);
Log.v(TAG, "onCreate()");
super.onCreate(savedInstanceState);
SDLActivity.initialize();
// So we can call stuff from static callbacks
mSingleton = this;
@ -179,18 +180,16 @@ public class SDLActivity extends Activity {
return;
}
// Set up the surface
mSurface = new SDLSurface(getApplication());
// Set up JNI
SDLActivity.nativeSetupJNI();
if(Build.VERSION.SDK_INT >= 16) {
if (Build.VERSION.SDK_INT >= 16) {
mJoystickHandler = new SDLJoystickHandler_API16();
} else if(Build.VERSION.SDK_INT >= 12) {
} else if (Build.VERSION.SDK_INT >= 12) {
mJoystickHandler = new SDLJoystickHandler_API12();
} else {
mJoystickHandler = new SDLJoystickHandler();
}
mHapticHandler = new SDLHapticHandler();
if (Build.VERSION.SDK_INT >= 11) {
@ -200,6 +199,9 @@ public class SDLActivity extends Activity {
mClipboardHandler = new SDLClipboardHandler_Old();
}
// Set up the surface
mSurface = new SDLSurface(getApplication());
mLayout = new RelativeLayout(this);
mLayout.addView(mSurface);
@ -207,7 +209,6 @@ public class SDLActivity extends Activity {
// Get filename from "Open with" of another application
Intent intent = getIntent();
if (intent != null && intent.getData() != null) {
String filename = intent.getData().getPath();
if (filename != null) {
@ -309,6 +310,7 @@ public class SDLActivity extends Activity {
}
super.onDestroy();
// Reset everything in case the user re opens the app
SDLActivity.initialize();
}
@ -358,43 +360,42 @@ public class SDLActivity extends Activity {
// Try a transition to resumed state
if (mNextNativeState == NativeState.RESUMED) {
if (mIsSurfaceReady && mHasFocus && mIsResumedCalled) {
if (mSDLThread == null) {
// This is the entry point to the C app.
// Start up the C app thread and enable sensor input for the first time
// FIXME: Why aren't we enabling sensor input at start?
if (mIsSurfaceReady && mHasFocus && mIsResumedCalled) {
final Thread sdlThread = new Thread(new SDLMain(), "SDLThread");
mSurface.enableSensor(Sensor.TYPE_ACCELEROMETER, true);
sdlThread.start();
if (mSDLThread == null) {
// This is the entry point to the C app.
// Start up the C app thread and enable sensor input for the first time
// Set up a listener thread to catch when the native thread ends
mSDLThread = new Thread(new Runnable() {
@Override
public void run() {
try {
sdlThread.join();
} catch (Exception e) {
// Ignore any exception
} finally {
// Native thread has finished
if (!mExitCalledFromJava) {
handleNativeExit();
}
}
}
}, "SDLThreadListener");
final Thread sdlThread = new Thread(new SDLMain(), "SDLThread");
mSurface.enableSensor(Sensor.TYPE_ACCELEROMETER, true);
sdlThread.start();
mSDLThread.start();
}
// Set up a listener thread to catch when the native thread ends
mSDLThread = new Thread(new Runnable(){
@Override
public void run(){
try {
sdlThread.join();
}
catch(Exception e){}
finally{
// Native thread has finished
if (! mExitCalledFromJava) {
handleNativeExit();
}
}
}
}, "SDLThreadListener");
mSDLThread.start();
}
nativeResume();
mSurface.handleResume();
mCurrentNativeState = mNextNativeState;
}
return;
}
nativeResume();
mSurface.handleResume();
mCurrentNativeState = mNextNativeState;
}
return;
}
}
/* The native thread has finished */
@ -460,12 +461,14 @@ public class SDLActivity extends Activity {
break;
case COMMAND_SET_KEEP_SCREEN_ON:
{
Window window = ((Activity) context).getWindow();
if (window != null) {
if ((msg.obj instanceof Integer) && (((Integer) msg.obj).intValue() != 0)) {
window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
} else {
window.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
if (context instanceof Activity) {
Window window = ((Activity) context).getWindow();
if (window != null) {
if ((msg.obj instanceof Integer) && (((Integer) msg.obj).intValue() != 0)) {
window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
} else {
window.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
}
}
break;
@ -490,7 +493,8 @@ public class SDLActivity extends Activity {
}
// C functions we call
public static native int nativeInit(Object arguments);
public static native int nativeSetupJNI();
public static native int nativeRunMain(String library, String function, Object arguments);
public static native void nativeLowMemory();
public static native void nativeQuit();
public static native void nativePause();
@ -1208,15 +1212,25 @@ public class SDLActivity extends Activity {
}
/**
Simple nativeInit() runnable
Simple runnable to start the SDL application
*/
class SDLMain implements Runnable {
@Override
public void run() {
// Runs SDL_main()
SDLActivity.nativeInit(SDLActivity.mSingleton.getArguments());
String library;
String[] libraries = SDLActivity.mSingleton.getLibraries();
if (libraries.length > 0) {
library = "lib" + libraries[libraries.length - 1] + ".so";
} else {
library = "libmain.so";
}
String function = "SDL_main";
//Log.v("SDL", "SDL thread terminated");
Log.v("SDL", "Running main function " + function + " from library " + library);
SDLActivity.nativeRunMain(library, function, SDLActivity.mSingleton.getArguments());
Log.v("SDL", "Finished main function");
}
}
@ -1251,7 +1265,7 @@ class SDLSurface extends SurfaceView implements SurfaceHolder.Callback,
mDisplay = ((WindowManager)context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
mSensorManager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
if(Build.VERSION.SDK_INT >= 12) {
if (Build.VERSION.SDK_INT >= 12) {
setOnGenericMotionListener(new SDLGenericMotionListener_API12());
}
@ -1964,8 +1978,8 @@ class SDLHapticHandler {
SDLHaptic haptic = getHaptic(deviceIds[i]);
if (haptic == null) {
InputDevice device = InputDevice.getDevice(deviceIds[i]);
Vibrator vib = device.getVibrator ();
if(vib.hasVibrator ()) {
Vibrator vib = device.getVibrator();
if (vib.hasVibrator()) {
haptic = new SDLHaptic();
haptic.device_id = deviceIds[i];
haptic.name = device.getName();

3
configure vendored
View file

@ -1616,7 +1616,7 @@ Optional Features:
include OpenGL ES 1.1 support [[default=yes]]
--enable-video-opengles2
include OpenGL ES 2.0 support [[default=yes]]
--enable-video-vulkan include Vulkan surface support [[default=yes]]
--enable-video-vulkan include Vulkan support [[default=yes]]
--enable-libudev enable libudev support [[default=yes]]
--enable-dbus enable D-Bus support [[default=yes]]
--enable-ime enable IME support [[default=yes]]
@ -23641,7 +23641,6 @@ case "$host" in
ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
CFLAGS="$CFLAGS $ANDROID_CFLAGS"
SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
SDL_LIBS="$SDL_LIBS -lSDL2main -Wl,-u,SDL_main_dummy"
EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
SDLMAIN_SOURCES="$srcdir/src/main/android/*.c"

1
configure.in
View file

@ -3201,7 +3201,6 @@ case "$host" in
ANDROID_CFLAGS="-DGL_GLEXT_PROTOTYPES"
CFLAGS="$CFLAGS $ANDROID_CFLAGS"
SDL_CFLAGS="$SDL_CFLAGS $ANDROID_CFLAGS"
SDL_LIBS="$SDL_LIBS -lSDL2main -Wl,-u,SDL_main_dummy"
EXTRA_CFLAGS="$EXTRA_CFLAGS $ANDROID_CFLAGS"
EXTRA_LDFLAGS="$EXTRA_LDFLAGS -ldl -lGLESv1_CM -lGLESv2 -llog -landroid"
SDLMAIN_SOURCES="$srcdir/src/main/android/*.c"

2
include/SDL_main.h
View file

@ -107,7 +107,7 @@
/**
* The prototype for the application's main() function
*/
extern C_LINKAGE int SDL_main(int argc, char *argv[]);
extern C_LINKAGE DECLSPEC int SDL_main(int argc, char *argv[]);
#include "begin_code.h"

98
src/core/android/SDL_android.c
View file

@ -43,6 +43,7 @@
#include <pthread.h>
#include <sys/types.h>
#include <unistd.h>
#include <dlfcn.h>
/* #define LOG_TAG "SDL_android" */
/* #define LOGI(...) __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__) */
/* #define LOGE(...) __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__) */
@ -58,6 +59,13 @@
/* Java class SDLActivity */
JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeSetupJNI)(
JNIEnv* mEnv, jclass cls);
JNIEXPORT int JNICALL SDL_JAVA_INTERFACE(nativeRunMain)(
JNIEnv* env, jclass cls,
jstring library, jstring function, jobject array);
JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeDropFile)(
JNIEnv* env, jclass jcls,
jstring filename);
@ -237,9 +245,9 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved)
}
/* Called before SDL_main() to initialize JNI bindings */
JNIEXPORT void JNICALL SDL_Android_Init(JNIEnv* mEnv, jclass cls)
JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeSetupJNI)(JNIEnv* mEnv, jclass cls)
{
__android_log_print(ANDROID_LOG_INFO, "SDL", "SDL_Android_Init()");
__android_log_print(ANDROID_LOG_VERBOSE, "SDL", "nativeSetupJNI()");
Android_JNI_SetupThread();
@ -299,16 +307,95 @@ JNIEXPORT void JNICALL SDL_Android_Init(JNIEnv* mEnv, jclass cls)
!midSetActivityTitle || !midSetOrientation || !midGetContext || !midInputGetInputDeviceIds ||
!midSendMessage || !midShowTextInput || !midIsScreenKeyboardShown ||
!midClipboardSetText || !midClipboardGetText || !midClipboardHasText) {
__android_log_print(ANDROID_LOG_WARN, "SDL", "SDL: Couldn't locate Java callbacks, check that they're named and typed correctly");
__android_log_print(ANDROID_LOG_WARN, "SDL", "Missing some Java callbacks, do you have the latest version of SDLActivity.java?");
}
fidSeparateMouseAndTouch = (*mEnv)->GetStaticFieldID(mEnv, mActivityClass, "mSeparateMouseAndTouch", "Z");
if (!fidSeparateMouseAndTouch) {
__android_log_print(ANDROID_LOG_WARN, "SDL", "SDL: Couldn't locate Java static fields, check that they're named and typed correctly");
__android_log_print(ANDROID_LOG_WARN, "SDL", "Missing some Java static fields, do you have the latest version of SDLActivity.java?");
}
__android_log_print(ANDROID_LOG_INFO, "SDL", "SDL_Android_Init() finished!");
SDL_SetMainReady();
}
/* SDL main function prototype */
typedef int (*SDL_main_func)(int argc, char *argv[]);
/* Start up the SDL app */
JNIEXPORT int JNICALL SDL_JAVA_INTERFACE(nativeRunMain)(JNIEnv* env, jclass cls, jstring library, jstring function, jobject array)
{
int status = -1;
const char *library_file;
void *library_handle;
library_file = (*env)->GetStringUTFChars(env, library, NULL);
library_handle = dlopen(library_file, RTLD_GLOBAL);
if (library_handle) {
const char *function_name;
SDL_main_func SDL_main;
function_name = (*env)->GetStringUTFChars(env, function, NULL);
SDL_main = (SDL_main_func)dlsym(library_handle, function_name);
if (SDL_main) {
int i;
int argc;
int len;
char **argv;
/* Prepare the arguments. */
len = (*env)->GetArrayLength(env, array);
argv = SDL_stack_alloc(char*, 1 + len + 1);
argc = 0;
/* Use the name "app_process" so PHYSFS_platformCalcBaseDir() works.
https://bitbucket.org/MartinFelis/love-android-sdl2/issue/23/release-build-crash-on-start
*/
argv[argc++] = SDL_strdup("app_process");
for (i = 0; i < len; ++i) {
const char* utf;
char* arg = NULL;
jstring string = (*env)->GetObjectArrayElement(env, array, i);
if (string) {
utf = (*env)->GetStringUTFChars(env, string, 0);
if (utf) {
arg = SDL_strdup(utf);
(*env)->ReleaseStringUTFChars(env, string, utf);
}
(*env)->DeleteLocalRef(env, string);
}
if (!arg) {
arg = SDL_strdup("");
}
argv[argc++] = arg;
}
argv[argc] = NULL;
/* Run the application. */
status = SDL_main(argc, argv);
/* Release the arguments. */
for (i = 0; i < argc; ++i) {
SDL_free(argv[i]);
}
SDL_stack_free(argv);
} else {
__android_log_print(ANDROID_LOG_ERROR, "SDL", "nativeRunMain(): Couldn't find function %s in library %s", function_name, library_file);
}
(*env)->ReleaseStringUTFChars(env, function, function_name);
dlclose(library_handle);
} else {
__android_log_print(ANDROID_LOG_ERROR, "SDL", "nativeRunMain(): Couldn't load library %s", library_file);
}
(*env)->ReleaseStringUTFChars(env, library, library_file);
/* Do not issue an exit or the whole application will terminate instead of just the SDL thread */
/* exit(status); */
return status;
}
/* Drop file */
@ -548,6 +635,7 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativePause)(
JNIEnv* env, jclass cls)
{
__android_log_print(ANDROID_LOG_VERBOSE, "SDL", "nativePause()");
if (Android_Window) {
SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_MINIMIZED, 0, 0);

85
src/main/android/SDL_android_main.c
View file

@ -1,88 +1,7 @@
/*
SDL_android_main.c, placed in the public domain by Sam Lantinga 3/13/14
As of SDL 2.0.6 this file is no longer necessary.
*/
#include "SDL_config.h"
#include "SDL.h"
#ifdef __ANDROID__
/* Include the SDL main definition header */
#include "SDL_main.h"
/*******************************************************************************
Functions called by JNI
*******************************************************************************/
#include <jni.h>
/* Dummy symbol so '-u SDL_main_dummy' forces ld to link in libSDL2main.a */
JNIEXPORT int SDL_main_dummy;
/* Called before SDL_main() to initialize JNI bindings in SDL library */
extern void SDL_Android_Init(JNIEnv* env, jclass cls);
/* This prototype is needed to prevent a warning about the missing prototype for global function below */
JNIEXPORT int JNICALL Java_org_libsdl_app_SDLActivity_nativeInit(JNIEnv* env, jclass cls, jobject array);
/* Start up the SDL app */
JNIEXPORT int JNICALL Java_org_libsdl_app_SDLActivity_nativeInit(JNIEnv* env, jclass cls, jobject array)
{
int i;
int argc;
int status;
int len;
char** argv;
/* This interface could expand with ABI negotiation, callbacks, etc. */
SDL_Android_Init(env, cls);
SDL_SetMainReady();
/* Prepare the arguments. */
len = (*env)->GetArrayLength(env, array);
argv = SDL_stack_alloc(char*, 1 + len + 1);
argc = 0;
/* Use the name "app_process" so PHYSFS_platformCalcBaseDir() works.
https://bitbucket.org/MartinFelis/love-android-sdl2/issue/23/release-build-crash-on-start
*/
argv[argc++] = SDL_strdup("app_process");
for (i = 0; i < len; ++i) {
const char* utf;
char* arg = NULL;
jstring string = (*env)->GetObjectArrayElement(env, array, i);
if (string) {
utf = (*env)->GetStringUTFChars(env, string, 0);
if (utf) {
arg = SDL_strdup(utf);
(*env)->ReleaseStringUTFChars(env, string, utf);
}
(*env)->DeleteLocalRef(env, string);
}
if (!arg) {
arg = SDL_strdup("");
}
argv[argc++] = arg;
}
argv[argc] = NULL;
/* Run the application. */
status = SDL_main(argc, argv);
/* Release the arguments. */
for (i = 0; i < argc; ++i) {
SDL_free(argv[i]);
}
SDL_stack_free(argv);
/* Do not issue an exit or the whole application will terminate instead of just the SDL thread */
/* exit(status); */
return status;
}
#endif /* __ANDROID__ */
/* vi: set ts=4 sw=4 expandtab: */