diff options
Diffstat (limited to 'src/com/android/gallery3d/filtershow/filters/ImageFilterVignette.java')
-rw-r--r-- | src/com/android/gallery3d/filtershow/filters/ImageFilterVignette.java | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/filtershow/filters/ImageFilterVignette.java b/src/com/android/gallery3d/filtershow/filters/ImageFilterVignette.java new file mode 100644 index 000000000..7e0a452bf --- /dev/null +++ b/src/com/android/gallery3d/filtershow/filters/ImageFilterVignette.java @@ -0,0 +1,98 @@ +/* + * 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.content.res.Resources; +import android.graphics.Bitmap; +import android.graphics.Canvas; +import android.graphics.Matrix; +import android.graphics.Rect; +import com.android.gallery3d.R; +import com.android.gallery3d.filtershow.pipeline.FilterEnvironment; + +public class ImageFilterVignette extends SimpleImageFilter { + private static final String LOGTAG = "ImageFilterVignette"; + private Bitmap mOverlayBitmap; + + public ImageFilterVignette() { + mName = "Vignette"; + } + + @Override + public FilterRepresentation getDefaultRepresentation() { + FilterVignetteRepresentation representation = new FilterVignetteRepresentation(); + return representation; + } + + native protected void nativeApplyFilter( + Bitmap bitmap, int w, int h, int cx, int cy, float radx, float rady, float strength); + + private float calcRadius(float cx, float cy, int w, int h) { + float d = cx; + if (d < (w - cx)) { + d = w - cx; + } + if (d < cy) { + d = cy; + } + if (d < (h - cy)) { + d = h - cy; + } + return d * d * 2.0f; + } + + @Override + public Bitmap apply(Bitmap bitmap, float scaleFactor, int quality) { + if (SIMPLE_ICONS && FilterEnvironment.QUALITY_ICON == quality) { + if (mOverlayBitmap == null) { + Resources res = getEnvironment().getPipeline().getResources(); + mOverlayBitmap = IconUtilities.getFXBitmap(res, + R.drawable.filtershow_icon_vignette); + } + Canvas c = new Canvas(bitmap); + int dim = Math.max(bitmap.getWidth(), bitmap.getHeight()); + Rect r = new Rect(0, 0, dim, dim); + c.drawBitmap(mOverlayBitmap, null, r, null); + return bitmap; + } + FilterVignetteRepresentation rep = (FilterVignetteRepresentation) getParameters(); + if (rep == null) { + return bitmap; + } + int w = bitmap.getWidth(); + int h = bitmap.getHeight(); + float value = rep.getValue() / 100.0f; + float cx = w / 2; + float cy = h / 2; + float r = calcRadius(cx, cy, w, h); + float rx = r; + float ry = r; + if (rep.isCenterSet()) { + Matrix m = getOriginalToScreenMatrix(w, h); + cx = rep.getCenterX(); + cy = rep.getCenterY(); + float[] center = new float[] { cx, cy }; + m.mapPoints(center); + cx = center[0]; + cy = center[1]; + rx = m.mapRadius(rep.getRadiusX()); + ry = m.mapRadius(rep.getRadiusY()); + } + nativeApplyFilter(bitmap, w, h, (int) cx, (int) cy, rx, ry, value); + return bitmap; + } +} |