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Implemented SDL_GetDisplayOrientation() on Android (thanks Rachel!)

Sam Lantinga 2018-08-23 14:05:25 -07:00
parent df5d565f48
commit a003fa0a05
2 changed files with 68 additions and 0 deletions
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56
android-project/app/src/main/java/org/libsdl/app/SDLActivity.java
View File

@ -54,6 +54,14 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
private static final int SDL_SYSTEM_CURSOR_NO = 10;
private static final int SDL_SYSTEM_CURSOR_HAND = 11;
protected static final int SDL_ORIENTATION_UNKNOWN = 0;
protected static final int SDL_ORIENTATION_LANDSCAPE = 1;
protected static final int SDL_ORIENTATION_LANDSCAPE_FLIPPED = 2;
protected static final int SDL_ORIENTATION_PORTRAIT = 3;
protected static final int SDL_ORIENTATION_PORTRAIT_FLIPPED = 4;
protected static int mCurrentOrientation;
// Handle the state of the native layer
public enum NativeState {
INIT, RESUMED, PAUSED
@ -250,6 +258,10 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
mLayout = new RelativeLayout(this);
mLayout.addView(mSurface);
// Get our current screen orientation and pass it down.
mCurrentOrientation = SDLActivity.getCurrentOrientation();
SDLActivity.onNativeOrientationChanged(mCurrentOrientation);
setContentView(mLayout);
setWindowStyle(false);
@ -304,6 +316,32 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
SDLActivity.handleNativeState();
}
public static int getCurrentOrientation() {
final Context context = SDLActivity.getContext();
final Display display = ((WindowManager) context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
int result = SDL_ORIENTATION_UNKNOWN;
switch (display.getRotation()) {
case Surface.ROTATION_0:
result = SDL_ORIENTATION_PORTRAIT;
break;
case Surface.ROTATION_90:
result = SDL_ORIENTATION_LANDSCAPE;
break;
case Surface.ROTATION_180:
result = SDL_ORIENTATION_PORTRAIT_FLIPPED;
break;
case Surface.ROTATION_270:
result = SDL_ORIENTATION_LANDSCAPE_FLIPPED;
break;
}
return result;
}
@Override
public void onWindowFocusChanged(boolean hasFocus) {
@ -628,6 +666,7 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
public static native void onNativeSurfaceDestroyed();
public static native String nativeGetHint(String name);
public static native void nativeSetenv(String name, String value);
public static native void onNativeOrientationChanged(int orientation);
/**
* This method is called by SDL using JNI.
@ -1748,28 +1787,45 @@ class SDLSurface extends SurfaceView implements SurfaceHolder.Callback,
@Override
public void onSensorChanged(SensorEvent event) {
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
// Since we may have an orientation set, we won't receive onConfigurationChanged events.
// We thus should check here.
int newOrientation = SDLActivity.SDL_ORIENTATION_UNKNOWN;
float x, y;
switch (mDisplay.getRotation()) {
case Surface.ROTATION_90:
x = -event.values[1];
y = event.values[0];
newOrientation = SDLActivity.SDL_ORIENTATION_LANDSCAPE;
break;
case Surface.ROTATION_270:
x = event.values[1];
y = -event.values[0];
newOrientation = SDLActivity.SDL_ORIENTATION_LANDSCAPE_FLIPPED;
break;
case Surface.ROTATION_180:
x = -event.values[1];
y = -event.values[0];
newOrientation = SDLActivity.SDL_ORIENTATION_PORTRAIT_FLIPPED;
break;
default:
x = event.values[0];
y = event.values[1];
newOrientation = SDLActivity.SDL_ORIENTATION_PORTRAIT;
break;
}
if (newOrientation != SDLActivity.mCurrentOrientation) {
SDLActivity.mCurrentOrientation = newOrientation;
SDLActivity.onNativeOrientationChanged(newOrientation);
}
SDLActivity.onNativeAccel(-x / SensorManager.GRAVITY_EARTH,
y / SensorManager.GRAVITY_EARTH,
event.values[2] / SensorManager.GRAVITY_EARTH);
}
}

12
src/core/android/SDL_android.c
View File

@ -135,6 +135,10 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeSetenv)(
JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeEnvironmentVariablesSet)(
JNIEnv* env, jclass cls);
JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeOrientationChanged)(
JNIEnv* env, jclass cls,
jint orientation);
/* Java class SDLInputConnection */
JNIEXPORT void JNICALL SDL_JAVA_INTERFACE_INPUT_CONNECTION(nativeCommitText)(
JNIEnv* env, jclass cls,
@ -535,6 +539,14 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeResize)(
Android_SetScreenResolution(surfaceWidth, surfaceHeight, deviceWidth, deviceHeight, format, rate);
}
JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeOrientationChanged)(
JNIEnv *env, jclass jcls,
jint orientation)
{
SDL_VideoDisplay *display = SDL_GetDisplay(0);
SDL_SendDisplayEvent(display, SDL_DISPLAYEVENT_ORIENTATION, orientation);
}
/* Paddown */
JNIEXPORT jint JNICALL SDL_JAVA_CONTROLLER_INTERFACE(onNativePadDown)(
JNIEnv* env, jclass jcls,