1 files changed, 77 insertions, 0 deletions
diff --git a/libs/hwui/apex/include/android/graphics/region.h b/libs/hwui/apex/include/android/graphics/region.h
new file mode 100644
index 000000000000..0756d6dd63f6
--- /dev/null
+++ b/libs/hwui/apex/include/android/graphics/region.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef ANDROID_GRAPHICS_REGION_H
+#define ANDROID_GRAPHICS_REGION_H
+
+#include <cutils/compiler.h>
+#include <android/rect.h>
+#include <sys/cdefs.h>
+#include <jni.h>
+
+__BEGIN_DECLS
+
+/**
+* Opaque handle for a native graphics region iterator.
+*/
+typedef struct ARegionIterator ARegionIterator;
+
+/**
+ * Returns a iterator for a Java android.graphics.Region
+ *
+ * @param env
+ * @param region
+ * @return ARegionIterator that must be closed and must not live longer than the life
+ *         of the jobject.  It returns nullptr if the region is not a valid object.
+ */
+ANDROID_API ARegionIterator* ARegionIterator_acquireIterator(JNIEnv* env, jobject region);
+
+ANDROID_API void ARegionIterator_releaseIterator(ARegionIterator* iterator);
+
+ANDROID_API bool ARegionIterator_isComplex(ARegionIterator* iterator);
+
+ANDROID_API bool ARegionIterator_isDone(ARegionIterator* iterator);
+
+ANDROID_API void ARegionIterator_next(ARegionIterator* iterator);
+
+ANDROID_API ARect ARegionIterator_getRect(ARegionIterator* iterator);
+
+ANDROID_API ARect ARegionIterator_getTotalBounds(ARegionIterator* iterator);
+
+__END_DECLS
+
+#ifdef	__cplusplus
+namespace android {
+namespace graphics {
+    class RegionIterator {
+    public:
+        RegionIterator(JNIEnv* env, jobject region)
+                : mIterator(ARegionIterator_acquireIterator(env, region)) {}
+        ~RegionIterator() { ARegionIterator_releaseIterator(mIterator); }
+
+        bool isValid() const { return mIterator != nullptr; }
+        bool isComplex() { return ARegionIterator_isComplex(mIterator); }
+        bool isDone() { return ARegionIterator_isDone(mIterator); }
+        void next() { ARegionIterator_next(mIterator); }
+        ARect getRect() { return ARegionIterator_getRect(mIterator); }
+        ARect getTotalBounds() const { return ARegionIterator_getTotalBounds(mIterator); }
+    private:
+        ARegionIterator* mIterator;
+    };
+}; // namespace graphics
+}; // namespace android
+
+#endif // __cplusplus
+#endif // ANDROID_GRAPHICS_REGION_H
+\ No newline at end of file