1 files changed, 74 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/filtershow/filters/ImageFilterHighlights.java b/src/com/android/gallery3d/filtershow/filters/ImageFilterHighlights.java
new file mode 100644
index 000000000..4c837e0bf
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/filters/ImageFilterHighlights.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2013 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 com.android.gallery3d.R;
+
+public class ImageFilterHighlights extends SimpleImageFilter {
+    private static final String SERIALIZATION_NAME = "HIGHLIGHTS";
+    private static final String LOGTAG = "ImageFilterVignette";
+
+    public ImageFilterHighlights() {
+        mName = "Highlights";
+    }
+
+    SplineMath mSpline = new SplineMath(5);
+    double[] mHighlightCurve = { 0.0, 0.32, 0.418, 0.476, 0.642 };
+
+    public FilterRepresentation getDefaultRepresentation() {
+        FilterBasicRepresentation representation =
+                (FilterBasicRepresentation) super.getDefaultRepresentation();
+        representation.setName("Highlights");
+        representation.setSerializationName(SERIALIZATION_NAME);
+        representation.setFilterClass(ImageFilterHighlights.class);
+        representation.setTextId(R.string.highlight_recovery);
+        representation.setMinimum(-100);
+        representation.setMaximum(100);
+        representation.setDefaultValue(0);
+        representation.setSupportsPartialRendering(true);
+        return representation;
+    }
+
+    native protected void nativeApplyFilter(Bitmap bitmap, int w, int h, float[] luminanceMap);
+
+    @Override
+    public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) {
+        if (getParameters() == null) {
+            return bitmap;
+        }
+        float p = getParameters().getValue();
+        double t = p/100.;
+        for (int i = 0; i < 5; i++) {
+            double x = i / 4.;
+            double y = mHighlightCurve[i] *t+x*(1-t);
+            mSpline.setPoint(i, x, y);
+        }
+
+        float[][] curve = mSpline.calculatetCurve(256);
+        float[] luminanceMap = new float[curve.length];
+        for (int i = 0; i < luminanceMap.length; i++) {
+            luminanceMap[i] = curve[i][1];
+        }
+        int w = bitmap.getWidth();
+        int h = bitmap.getHeight();
+
+        nativeApplyFilter(bitmap, w, h, luminanceMap);
+        return bitmap;
+    }
+}