| /* |
| * 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.cache; |
| |
| import android.graphics.Bitmap; |
| import android.os.*; |
| import android.os.Process; |
| import android.renderscript.Allocation; |
| import android.renderscript.Allocation.MipmapControl; |
| import android.renderscript.RenderScript; |
| import android.util.Log; |
| |
| import com.android.gallery3d.filtershow.filters.ImageFilterRS; |
| import com.android.gallery3d.filtershow.imageshow.GeometryMetadata; |
| import com.android.gallery3d.filtershow.imageshow.MasterImage; |
| import com.android.gallery3d.filtershow.presets.ImagePreset; |
| |
| public class FilteringPipeline implements Handler.Callback { |
| |
| private final static FilteringPipeline gPipeline = new FilteringPipeline(); |
| private static final String LOGTAG = "FilteringPipeline"; |
| private ImagePreset mPreviousPreset = null; |
| private ImagePreset mPreviousGeometryPreset = null; |
| private ImagePreset mPreviousFiltersPreset = null; |
| private GeometryMetadata mPreviousGeometry = null; |
| |
| private Bitmap mOriginalBitmap = null; |
| private Bitmap mResizedOriginalBitmap = null; |
| |
| private boolean DEBUG = false; |
| |
| private HandlerThread mHandlerThread = null; |
| private final static int NEW_PRESET = 0; |
| private final static int COMPUTE_PRESET = 1; |
| private final static int COMPUTE_GEOMETRY_PRESET = 2; |
| private final static int COMPUTE_FILTERS_PRESET = 3; |
| |
| private boolean mProcessing = false; |
| |
| private Handler mProcessingHandler = null; |
| private final Handler mUIHandler = new Handler() { |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case NEW_PRESET: { |
| MasterImage.getImage().notifyObservers(); |
| mProcessing = false; |
| break; |
| } |
| } |
| } |
| }; |
| |
| @Override |
| public boolean handleMessage(Message msg) { |
| switch (msg.what) { |
| case COMPUTE_PRESET: { |
| ImagePreset preset = MasterImage.getImage().getPreset(); |
| TripleBufferBitmap buffer = MasterImage.getImage().getDoubleBuffer(); |
| compute(buffer, preset, COMPUTE_PRESET); |
| Message uimsg = mUIHandler.obtainMessage(NEW_PRESET); |
| mUIHandler.sendMessage(uimsg); |
| break; |
| } |
| case COMPUTE_GEOMETRY_PRESET: { |
| ImagePreset preset = MasterImage.getImage().getGeometryPreset(); |
| TripleBufferBitmap buffer = MasterImage.getImage().getGeometryOnlyBuffer(); |
| compute(buffer, preset, COMPUTE_GEOMETRY_PRESET); |
| Message uimsg = mUIHandler.obtainMessage(NEW_PRESET); |
| mUIHandler.sendMessage(uimsg); |
| break; |
| } |
| case COMPUTE_FILTERS_PRESET: { |
| ImagePreset preset = MasterImage.getImage().getFiltersOnlyPreset(); |
| TripleBufferBitmap buffer = MasterImage.getImage().getFiltersOnlyBuffer(); |
| compute(buffer, preset, COMPUTE_FILTERS_PRESET); |
| Message uimsg = mUIHandler.obtainMessage(NEW_PRESET); |
| mUIHandler.sendMessage(uimsg); |
| break; |
| } |
| } |
| return false; |
| } |
| |
| private static float RESIZE_FACTOR = 0.8f; |
| private static float MAX_PROCESS_TIME = 100; // in ms |
| private float mResizeFactor = 1.0f; |
| private long mResizeTime = 0; |
| |
| private Allocation mOriginalBitmapAllocation = null; |
| private Allocation mOriginalAllocation = null; |
| private Allocation mFiltersOnlyOriginalAllocation = null; |
| |
| private FilteringPipeline() { |
| mHandlerThread = new HandlerThread("FilteringPipeline", |
| Process.THREAD_PRIORITY_FOREGROUND); |
| mHandlerThread.start(); |
| mProcessingHandler = new Handler(mHandlerThread.getLooper(), this); |
| } |
| |
| public static FilteringPipeline getPipeline() { |
| return gPipeline; |
| } |
| |
| public synchronized void setOriginal(Bitmap bitmap) { |
| mOriginalBitmap = bitmap; |
| Log.v(LOGTAG,"setOriginal, size " + bitmap.getWidth() + " x " + bitmap.getHeight()); |
| updateOriginalAllocation(MasterImage.getImage().getPreset()); |
| } |
| |
| public synchronized boolean updateOriginalAllocation(ImagePreset preset) { |
| if (mOriginalBitmap == null) { |
| return false; |
| } |
| /* |
| //FIXME: turn back on the on-the-fly resize. |
| int w = (int) (mOriginalBitmap.getWidth() * mResizeFactor); |
| int h = (int) (mOriginalBitmap.getHeight() * mResizeFactor); |
| if (!needsGeometryRepaint() && mResizedOriginalBitmap != null && w == mResizedOriginalBitmap.getWidth()) { |
| return false; |
| } |
| mResizedOriginalBitmap = Bitmap.createScaledBitmap(mOriginalBitmap, w, h, true); |
| */ |
| GeometryMetadata geometry = preset.getGeometry(); |
| if (mPreviousGeometry != null && geometry.equals(mPreviousGeometry)) { |
| return false; |
| } |
| RenderScript RS = ImageFilterRS.getRenderScriptContext(); |
| if (mFiltersOnlyOriginalAllocation != null) { |
| mFiltersOnlyOriginalAllocation.destroy(); |
| } |
| mFiltersOnlyOriginalAllocation = Allocation.createFromBitmap(RS, mOriginalBitmap, |
| MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT); |
| if (mOriginalAllocation != null) { |
| mOriginalAllocation.destroy(); |
| } |
| mResizedOriginalBitmap = preset.applyGeometry(mOriginalBitmap); |
| mOriginalAllocation = Allocation.createFromBitmap(RS, mResizedOriginalBitmap, |
| MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT); |
| mPreviousGeometry = new GeometryMetadata(geometry); |
| return true; |
| } |
| |
| public synchronized void updatePreviewBuffer() { |
| if (mOriginalAllocation == null) { |
| return; |
| } |
| if (mProcessing) { |
| return; |
| } |
| if (mProcessingHandler.hasMessages(COMPUTE_PRESET)) { |
| return; |
| } |
| if (!needsRepaint()) { |
| return; |
| } |
| Message msg = mProcessingHandler.obtainMessage(COMPUTE_PRESET); |
| mProcessingHandler.sendMessage(msg); |
| mProcessing = true; |
| } |
| |
| public void updateGeometryOnlyPreviewBuffer() { |
| if (mOriginalAllocation == null) { |
| return; |
| } |
| if (mProcessing) { |
| return; |
| } |
| if (mProcessingHandler.hasMessages(COMPUTE_GEOMETRY_PRESET)) { |
| return; |
| } |
| if (!needsGeometryRepaint()) { |
| return; |
| } |
| Message msg = mProcessingHandler.obtainMessage(COMPUTE_GEOMETRY_PRESET); |
| mProcessingHandler.sendMessage(msg); |
| mProcessing = true; |
| } |
| |
| public void updateFiltersOnlyPreviewBuffer() { |
| if (mOriginalAllocation == null) { |
| return; |
| } |
| if (mProcessing) { |
| return; |
| } |
| if (mProcessingHandler.hasMessages(COMPUTE_FILTERS_PRESET)) { |
| return; |
| } |
| if (!needsFiltersRepaint()) { |
| return; |
| } |
| Message msg = mProcessingHandler.obtainMessage(COMPUTE_FILTERS_PRESET); |
| mProcessingHandler.sendMessage(msg); |
| mProcessing = true; |
| } |
| |
| private void compute(TripleBufferBitmap buffer, ImagePreset preset, int type) { |
| String thread = Thread.currentThread().getName(); |
| long time = System.currentTimeMillis(); |
| if (updateOriginalAllocation(preset)) { |
| buffer.updateBitmaps(mResizedOriginalBitmap); |
| } |
| Bitmap bitmap = buffer.getProducer(); |
| long time2 = System.currentTimeMillis(); |
| |
| if (type != COMPUTE_FILTERS_PRESET) { |
| if (bitmap == null || (bitmap.getWidth() != mResizedOriginalBitmap.getWidth()) |
| || (bitmap.getHeight() != mResizedOriginalBitmap.getHeight())) { |
| buffer.updateBitmaps(mResizedOriginalBitmap); |
| bitmap = buffer.getProducer(); |
| } |
| mOriginalAllocation.copyTo(bitmap); |
| } else { |
| if (bitmap == null || (bitmap.getWidth() != mOriginalBitmap.getWidth()) |
| || (bitmap.getHeight() != mOriginalBitmap.getHeight())) { |
| buffer.updateBitmaps(mOriginalBitmap); |
| bitmap = buffer.getProducer(); |
| } |
| mFiltersOnlyOriginalAllocation.copyTo(bitmap); |
| } |
| |
| if (mOriginalAllocation == null || bitmap == null) { |
| Log.v(LOGTAG, "exiting compute because mOriginalAllocation: " + mOriginalAllocation + " or bitmap: " + bitmap); |
| return; |
| } |
| |
| if (type != COMPUTE_GEOMETRY_PRESET) { |
| bitmap = preset.apply(bitmap); |
| } |
| |
| buffer.swapProducer(); |
| time = System.currentTimeMillis() - time; |
| time2 = System.currentTimeMillis() - time2; |
| if (DEBUG) { |
| Log.v(LOGTAG, "Applying " + type + " filters to bitmap " + bitmap + " took " + time + " ms, " + time2 + " ms for the filter, on thread " + thread); |
| } |
| if (type == COMPUTE_PRESET) { |
| mPreviousPreset = new ImagePreset(preset); |
| if (mResizeFactor > 0.6 && time > MAX_PROCESS_TIME && (System.currentTimeMillis() + 1000 > mResizeTime)) { |
| mResizeTime = System.currentTimeMillis(); |
| mResizeFactor *= RESIZE_FACTOR; |
| } |
| } else if (type == COMPUTE_GEOMETRY_PRESET) { |
| mPreviousGeometryPreset = new ImagePreset(preset); |
| } else if (type == COMPUTE_FILTERS_PRESET) { |
| mPreviousFiltersPreset = new ImagePreset(preset); |
| } |
| } |
| |
| private synchronized boolean needsRepaint() { |
| ImagePreset preset = MasterImage.getImage().getPreset(); |
| if (preset == null || mPreviousPreset == null) { |
| return true; |
| } |
| if (preset.equals(mPreviousPreset)) { |
| return false; |
| } |
| return true; |
| } |
| |
| private synchronized boolean needsGeometryRepaint() { |
| ImagePreset preset = MasterImage.getImage().getPreset(); |
| if (preset == null || mPreviousGeometry == null || mPreviousGeometryPreset == null) { |
| return true; |
| } |
| GeometryMetadata geometry = preset.getGeometry(); |
| if (geometry.equals(mPreviousGeometryPreset.getGeometry())) { |
| return false; |
| } |
| return true; |
| } |
| |
| private synchronized boolean needsFiltersRepaint() { |
| ImagePreset preset = MasterImage.getImage().getPreset(); |
| if (preset == null || mPreviousFiltersPreset == null) { |
| return true; |
| } |
| if (preset.equals(mPreviousFiltersPreset)) { |
| return false; |
| } |
| return true; |
| } |
| } |