/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- * xscreensaver, Copyright (c) 2016-2017 Jamie Zawinski <jwz@jwz.org>
+ * xscreensaver, Copyright (c) 2016-2018 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
import android.graphics.Paint;
import android.graphics.Paint.FontMetrics;
import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.util.Log;
import android.view.Surface;
-
public class jwxyz
implements GestureDetector.OnGestureListener,
GestureDetector.OnDoubleTapListener {
}
- private ByteBuffer convertBitmap (String name, Bitmap bitmap,
- int target_width, int target_height,
- ExifInterface exif,
- boolean rotate_p) {
+ // Returns [ Bitmap bitmap, String name ]
+ private Object[] convertBitmap (String name, Bitmap bitmap,
+ int target_width, int target_height,
+ ExifInterface exif, boolean rotate_p) {
if (bitmap == null) return null;
- try {
+ {
int width = bitmap.getWidth();
int height = bitmap.getHeight();
+ Matrix matrix = new Matrix();
LOG ("read image %s: %d x %d", name, width, height);
}
if (deg != 0) {
LOG ("%s: EXIF rotate %d", name, deg);
- Matrix matrix = new Matrix();
matrix.preRotate (deg);
- bitmap = Bitmap.createBitmap (bitmap, 0, 0, width, height,
- matrix, true);
- width = bitmap.getWidth();
- height = bitmap.getHeight();
+ if (deg == 90 || deg == 270) {
+ int temp = width;
+ width = height;
+ height = temp;
+ }
}
}
// If the caller requested that we rotate the image to best fit the
- // screen, rotate it again. (Could combine this with the above and
- // avoid copying the image again, but I'm lazy.)
+ // screen, rotate it again.
if (rotate_p &&
(width > height) != (target_width > target_height)) {
LOG ("%s: rotated to fit screen", name);
- Matrix matrix = new Matrix();
matrix.preRotate (90);
- bitmap = Bitmap.createBitmap (bitmap, 0, 0, width, height,
- matrix, true);
- width = bitmap.getWidth();
- height = bitmap.getHeight();
+
+ int temp = width;
+ width = height;
+ height = temp;
}
// Resize the image to be not larger than the screen, potentially
float r = (r1 > r2 ? r2 : r1);
LOG ("%s: resize %.1f: %d x %d => %d x %d", name,
r, width, height, (int) (width * r), (int) (height * r));
- width = (int) (width * r);
- height = (int) (height * r);
- bitmap = Bitmap.createScaledBitmap (bitmap, width, height, true);
- width = bitmap.getWidth();
- height = bitmap.getHeight();
+ matrix.preScale (r, r);
}
- // Now convert it to a ByteBuffer in the form expected by the C caller.
-
- byte[] nameb = name.getBytes("UTF-8");
- int size = bitmap.getByteCount() + 4 + nameb.length + 1;
-
- ByteBuffer bits = ByteBuffer.allocateDirect (size);
-
- bits.put ((byte) ((width >> 8) & 0xFF));
- bits.put ((byte) ( width & 0xFF));
- bits.put ((byte) ((height >> 8) & 0xFF));
- bits.put ((byte) ( height & 0xFF));
- bits.put (nameb);
- bits.put ((byte) 0);
+ bitmap = Bitmap.createBitmap (bitmap, 0, 0,
+ bitmap.getWidth(), bitmap.getHeight(),
+ matrix, true);
- // The fourth of five copies. Good thing these are supercomputers.
- bitmap.copyPixelsToBuffer (bits);
+ if (bitmap.getConfig() != Bitmap.Config.ARGB_8888)
+ bitmap = bitmap.copy(Bitmap.Config.ARGB_8888, false);
- return bits;
+ return new Object[] { bitmap, name };
- } catch (Exception e) {
- LOG ("image %s unreadable: %s", name, e.toString());
}
-
- return null;
}
- public ByteBuffer loadRandomImage (int target_width, int target_height,
- boolean rotate_p) {
+ public Object[] loadRandomImage (int target_width, int target_height,
+ boolean rotate_p) {
int min_size = 480;
int max_size = 0x7FFF;
for (int i = 0; i < uris.length; i++) {
Cursor cursor = cr.query (uris[i], cols, null, null, null);
+ if (cursor == null)
+ continue;
int j = 0;
int path_col = cursor.getColumnIndexOrThrow (cols[j++]);
int type_col = cursor.getColumnIndexOrThrow (cols[j++]);
while (cursor.moveToNext()) {
String path = cursor.getString(path_col);
String type = cursor.getString(type_col);
- int w = Integer.parseInt (cursor.getString(width_col));
- int h = Integer.parseInt (cursor.getString(height_col));
- if (type.startsWith("image/") &&
- w > min_size && h > min_size &&
- w < max_size && h < max_size) {
- imgs.add (path);
+ if (path != null && type != null && type.startsWith("image/")) {
+ String wc = cursor.getString(width_col);
+ String hc = cursor.getString(height_col);
+ if (wc != null && hc != null) {
+ int w = Integer.parseInt (wc);
+ int h = Integer.parseInt (hc);
+ if (w > min_size && h > min_size &&
+ w < max_size && h < max_size) {
+ imgs.add (path);
+ }
+ }
}
}
cursor.close();
ExifInterface exif = null;
try {
- bitmap = MediaStore.Images.Media.getBitmap (cr, uri);
- } catch (Exception e) {
- LOG ("image %s unloadable: %s", which, e.toString());
- return null;
- }
+ try {
+ bitmap = MediaStore.Images.Media.getBitmap (cr, uri);
+ } catch (Exception e) {
+ LOG ("image %s unloadable: %s", which, e.toString());
+ return null;
+ }
- try {
- exif = new ExifInterface (uri.getPath()); // If it fails, who cares
- } catch (Exception e) {
- }
+ try {
+ exif = new ExifInterface (uri.getPath()); // If it fails, who cares
+ } catch (Exception e) {
+ }
- ByteBuffer bits = convertBitmap (name, bitmap,
- target_width, target_height,
- exif, rotate_p);
- bitmap.recycle();
- return bits;
+ return convertBitmap (name, bitmap, target_width, target_height,
+ exif, rotate_p);
+ } catch (java.lang.OutOfMemoryError e) {
+ LOG ("image %s got OutOfMemoryError: %s", which, e.toString());
+ return null;
+ }
}
- public ByteBuffer getScreenshot (int target_width, int target_height,
- boolean rotate_p) {
+ public Object[] getScreenshot (int target_width, int target_height,
+ boolean rotate_p) {
return convertBitmap ("Screenshot", screenshot,
target_width, target_height,
null, rotate_p);
}
+ public Bitmap decodePNG (byte[] data) {
+ BitmapFactory.Options opts = new BitmapFactory.Options();
+ opts.inPreferredConfig = Bitmap.Config.ARGB_8888;
+ return BitmapFactory.decodeByteArray (data, 0, data.length, opts);
+ }
+
+
// Sadly duplicated from jwxyz.h (and thence X.h and keysymdef.h)
//
private static final int ShiftMask = (1<<0);
projects / xscreensaver / blobdiff