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Diffstat (limited to 'src/com/android/gallery3d/filtershow/filters/ImageFilterBwFilter.java')
-rw-r--r--src/com/android/gallery3d/filtershow/filters/ImageFilterBwFilter.java64
1 files changed, 64 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..50837ca2f
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/filters/ImageFilterBwFilter.java
@@ -0,0 +1,64 @@
+/*
+ * 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 com.android.gallery3d.R;
+
+import android.graphics.Bitmap;
+import android.graphics.Color;
+
+
+public class ImageFilterBwFilter extends SimpleImageFilter {
+ private static final String SERIALIZATION_NAME = "BWFILTER";
+
+ public ImageFilterBwFilter() {
+ mName = "BW Filter";
+ }
+
+ public FilterRepresentation getDefaultRepresentation() {
+ FilterBasicRepresentation representation = (FilterBasicRepresentation) super.getDefaultRepresentation();
+ representation.setName("BW Filter");
+ representation.setSerializationName(SERIALIZATION_NAME);
+
+ representation.setFilterClass(ImageFilterBwFilter.class);
+ representation.setMaximum(180);
+ representation.setMinimum(-180);
+ representation.setTextId(R.string.bwfilter);
+ representation.setSupportsPartialRendering(true);
+ return representation;
+ }
+
+ native protected void nativeApplyFilter(Bitmap bitmap, int w, int h, int r, int g, int b);
+
+ @Override
+ public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) {
+ if (getParameters() == null) {
+ return bitmap;
+ }
+ int w = bitmap.getWidth();
+ int h = bitmap.getHeight();
+ float[] hsv = new float[] {
+ 180 + getParameters().getValue(), 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;
+ }
+}