ImageFilterRS.java revision 57eedfd99676913f575b1f76e3a874026d1ddf7c
1a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard/* 2a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * Copyright (C) 2012 The Android Open Source Project 3a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * 4a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * Licensed under the Apache License, Version 2.0 (the "License"); 5a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * you may not use this file except in compliance with the License. 6a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * You may obtain a copy of the License at 7a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * 8a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * http://www.apache.org/licenses/LICENSE-2.0 9a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * 10a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * Unless required by applicable law or agreed to in writing, software 11a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * distributed under the License is distributed on an "AS IS" BASIS, 12a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * See the License for the specific language governing permissions and 14a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard * limitations under the License. 15a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard */ 16a9f280f938b5fd5891c5cfe0999f8f1d4945d7a1nicolasroard 175448bf8095483574649afcc2add7f153670c7450nicolasroardpackage com.android.gallery3d.filtershow.filters; 185448bf8095483574649afcc2add7f153670c7450nicolasroard 195448bf8095483574649afcc2add7f153670c7450nicolasroardimport android.app.Activity; 205448bf8095483574649afcc2add7f153670c7450nicolasroardimport android.graphics.Bitmap; 215448bf8095483574649afcc2add7f153670c7450nicolasroardimport android.renderscript.Allocation; 2257eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroardimport android.renderscript.Allocation.MipmapControl; 235448bf8095483574649afcc2add7f153670c7450nicolasroardimport android.renderscript.RenderScript; 245448bf8095483574649afcc2add7f153670c7450nicolasroardimport android.util.Log; 255448bf8095483574649afcc2add7f153670c7450nicolasroard 265448bf8095483574649afcc2add7f153670c7450nicolasroardpublic class ImageFilterRS extends ImageFilter { 275448bf8095483574649afcc2add7f153670c7450nicolasroard private final String LOGTAG = "ImageFilterRS"; 285448bf8095483574649afcc2add7f153670c7450nicolasroard 295448bf8095483574649afcc2add7f153670c7450nicolasroard private static RenderScript mRS = null; 305448bf8095483574649afcc2add7f153670c7450nicolasroard protected static Allocation mInPixelsAllocation; 315448bf8095483574649afcc2add7f153670c7450nicolasroard protected static Allocation mOutPixelsAllocation; 325448bf8095483574649afcc2add7f153670c7450nicolasroard private static android.content.res.Resources mResources = null; 3357eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard private static Bitmap sOldBitmap = null; 3457eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard private Bitmap mOldBitmap = null; 355448bf8095483574649afcc2add7f153670c7450nicolasroard 3657eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard private static Bitmap mReturnBitmap = null; 3757eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard private final Bitmap.Config mBitmapConfig = Bitmap.Config.ARGB_8888; 3857eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard 3957eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard public void prepare(Bitmap bitmap, float scaleFactor, boolean highQuality) { 4057eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard if (sOldBitmap == null 4157eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard || (bitmap.getWidth() != sOldBitmap.getWidth()) 4257eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard || (bitmap.getHeight() != sOldBitmap.getHeight())) { 4357eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard if (mInPixelsAllocation != null) { 4457eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard mInPixelsAllocation.destroy(); 4557eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard } 4657eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard if (mOutPixelsAllocation != null) { 4757eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard mOutPixelsAllocation.destroy(); 4857eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard } 4957eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard Bitmap bitmapBuffer = bitmap.copy(mBitmapConfig, true); 5057eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard mOutPixelsAllocation = Allocation.createFromBitmap(mRS, bitmapBuffer, 5157eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT); 5257eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard mInPixelsAllocation = Allocation.createTyped(mRS, 5357eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard mOutPixelsAllocation.getType()); 5457eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard sOldBitmap = bitmap; 5563a7dac01d394523799939596b960cb03321798dJohn Hoford } 5657eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard mInPixelsAllocation.copyFrom(bitmap); 5757eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard if (mOldBitmap != sOldBitmap) { 5857eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard createFilter(mResources, scaleFactor, highQuality); 5957eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard mOldBitmap = sOldBitmap; 6063a7dac01d394523799939596b960cb03321798dJohn Hoford } 615448bf8095483574649afcc2add7f153670c7450nicolasroard } 625448bf8095483574649afcc2add7f153670c7450nicolasroard 6357eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard public void createFilter(android.content.res.Resources res, 6457eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard float scaleFactor, boolean highQuality) { 6557eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard // Stub 665448bf8095483574649afcc2add7f153670c7450nicolasroard } 675448bf8095483574649afcc2add7f153670c7450nicolasroard 685448bf8095483574649afcc2add7f153670c7450nicolasroard public void runFilter() { 6957eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard // Stub 705448bf8095483574649afcc2add7f153670c7450nicolasroard } 715448bf8095483574649afcc2add7f153670c7450nicolasroard 725448bf8095483574649afcc2add7f153670c7450nicolasroard public void update(Bitmap bitmap) { 735448bf8095483574649afcc2add7f153670c7450nicolasroard mOutPixelsAllocation.copyTo(bitmap); 745448bf8095483574649afcc2add7f153670c7450nicolasroard } 755448bf8095483574649afcc2add7f153670c7450nicolasroard 7681eb9976f967d9b3faa1749a8ab29d1743cf347dnicolasroard @Override 7781eb9976f967d9b3faa1749a8ab29d1743cf347dnicolasroard public Bitmap apply(Bitmap bitmap, float scaleFactor, boolean highQuality) { 785448bf8095483574649afcc2add7f153670c7450nicolasroard if (bitmap == null) { 7981eb9976f967d9b3faa1749a8ab29d1743cf347dnicolasroard return bitmap; 805448bf8095483574649afcc2add7f153670c7450nicolasroard } 815448bf8095483574649afcc2add7f153670c7450nicolasroard try { 8257eedfd99676913f575b1f76e3a874026d1ddf7cnicolasroard prepare(bitmap, scaleFactor, highQuality); 835448bf8095483574649afcc2add7f153670c7450nicolasroard runFilter(); 845448bf8095483574649afcc2add7f153670c7450nicolasroard update(bitmap); 855448bf8095483574649afcc2add7f153670c7450nicolasroard } catch (android.renderscript.RSIllegalArgumentException e) { 865448bf8095483574649afcc2add7f153670c7450nicolasroard Log.e(LOGTAG, "Illegal argument? " + e); 875448bf8095483574649afcc2add7f153670c7450nicolasroard } catch (android.renderscript.RSRuntimeException e) { 885448bf8095483574649afcc2add7f153670c7450nicolasroard Log.e(LOGTAG, "RS runtime exception ? " + e); 895448bf8095483574649afcc2add7f153670c7450nicolasroard } 9081eb9976f967d9b3faa1749a8ab29d1743cf347dnicolasroard return bitmap; 915448bf8095483574649afcc2add7f153670c7450nicolasroard } 925448bf8095483574649afcc2add7f153670c7450nicolasroard 935448bf8095483574649afcc2add7f153670c7450nicolasroard public static RenderScript getRenderScriptContext() { 945448bf8095483574649afcc2add7f153670c7450nicolasroard return mRS; 955448bf8095483574649afcc2add7f153670c7450nicolasroard } 965448bf8095483574649afcc2add7f153670c7450nicolasroard 975448bf8095483574649afcc2add7f153670c7450nicolasroard public static void setRenderScriptContext(Activity context) { 985448bf8095483574649afcc2add7f153670c7450nicolasroard mRS = RenderScript.create(context); 995448bf8095483574649afcc2add7f153670c7450nicolasroard mResources = context.getResources(); 1005448bf8095483574649afcc2add7f153670c7450nicolasroard } 1015448bf8095483574649afcc2add7f153670c7450nicolasroard 1025448bf8095483574649afcc2add7f153670c7450nicolasroard} 103