1 files changed, 53 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/filtershow/filters/ImageFilterBwFilter.java b/src/com/android/gallery3d/filtershow/filters/ImageFilterBwFilter.java
new file mode 100644
index 000000000..558abe3c3
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/filters/ImageFilterBwFilter.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.gallery3d.filtershow.filters;
+
+import android.graphics.Bitmap;
+import android.graphics.Color;
+
+
+public class ImageFilterBwFilter extends ImageFilter {
+
+    public ImageFilterBwFilter() {
+        mName = "BW Filter";
+        mMaxParameter = 180;
+        mMinParameter = -180;
+    }
+
+    @Override
+    public ImageFilter clone() throws CloneNotSupportedException {
+        ImageFilterBwFilter filter = (ImageFilterBwFilter) super.clone();
+        return filter;
+    }
+
+    native protected void nativeApplyFilter(Bitmap bitmap, int w, int h, int r, int g, int b);
+
+    @Override
+    public Bitmap apply(Bitmap bitmap, float scaleFactor, boolean highQuality) {
+        int w = bitmap.getWidth();
+        int h = bitmap.getHeight();
+        float[] hsv = new float[] {
+                180 + mParameter, 1, 1
+        };
+        int rgb = Color.HSVToColor(hsv);
+        int r = 0xFF & (rgb >> 16);
+        int g = 0xFF & (rgb >> 8);
+        int b = 0xFF & (rgb >> 0);
+        nativeApplyFilter(bitmap, w, h, r, g, b);
+        return bitmap;
+    }
+}