Implement face stipples on Android

* .gitignore:

* java/Makefile.in: Fix typos.

* java/org/gnu/emacs/EmacsFillRectangle.java (perform): Call
blitOpaqueStipple if filling an unobscured rectangle with an
opaque stipple.

* java/org/gnu/emacs/EmacsGC.java (EmacsGC) <tileObject>: New
field.
(markDirty): Synchronize the current stipple with tileObject.
(prepareStipple, blitOpaqueStipple): New functions.

* java/org/gnu/emacs/EmacsService.java (EmacsService)
<resources>: New static field.
(onCreate): Set it.

* src/android.c (android_create_bitmap_from_data): Correct order
of arguments to android_create_pixmap_from_bitmap_data.
(HAS_BUILTIN_TRAP): Delete macro.
(emacs_abort): Always induce backtraces by means of a NULL
pointer deference.

* src/dispextern.h (Emacs_GC, Emacs_Rectangle, GCForeground)
(GCBackground, GCFillStyle, GCStipple, FillOpaqueStipple)
[HAVE_ANDROID]: Define to their Android counterparts rather
than simulating their existence.

* src/epaths.in: Set bitmap path to /assets/bitmaps on Android.

* src/image.c (image_bitmap_pixmap): Also enable when
HAVE_ANDROID.

* src/sfntfont-android.c (sfntfont_android_put_glyphs): Assert
that this is never called to draw a stippled background.
* src/xfaces.c (x_create_gc) [HAVE_ANDROID]: Redefine as
wrapper around android_create_gc.
(prepare_face_for_display) [HAVE_ANDROID]: Enable stipples.

1 files changed, 6 insertions, 1 deletions

diff --git a/java/org/gnu/emacs/EmacsService.java b/java/org/gnu/emacs/EmacsService.java
index 2d4079c11b0..8e459ce4cdc 100644
--- a/java/org/gnu/emacs/EmacsService.java
+++ b/java/org/gnu/emacs/EmacsService.java
@@ -64,6 +64,7 @@ import android.content.pm.PackageManager;
 
 import android.content.res.AssetManager;
 import android.content.res.Configuration;
+import android.content.res.Resources;
 
 import android.hardware.input.InputManager;
 
@@ -146,6 +147,9 @@ public final class EmacsService extends Service
      thread.  */
   private Thread mainThread;
 
+  /* "Resources" object required by GContext bookkeeping.  */
+  public static Resources resources;
+
   static
   {
     servicingQuery = new AtomicInteger ();
@@ -238,10 +242,11 @@ public final class EmacsService extends Service
     super.onCreate ();
 
     SERVICE = this;
+    resources = getResources ();
     handler = new Handler (Looper.getMainLooper ());
     manager = getAssets ();
     app_context = getApplicationContext ();
-    metrics = getResources ().getDisplayMetrics ();
+    metrics = resources.getDisplayMetrics ();
     pixelDensityX = metrics.xdpi;
     pixelDensityY = metrics.ydpi;
     tempScaledDensity = ((getScaledDensity (metrics)