diff options
Diffstat (limited to 'src/com/android/gallery3d/filtershow/filters/ImageFilterHighlights.java')
-rw-r--r-- | src/com/android/gallery3d/filtershow/filters/ImageFilterHighlights.java | 74 |
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; + } +} |