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/*
* 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.support.v8.renderscript.Allocation;
import android.support.v8.renderscript.RenderScript;
import android.util.Log;
import com.android.gallery3d.filtershow.filters.FiltersManager;
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 CachingPipeline {
private static final String LOGTAG = "CachingPipeline";
private boolean DEBUG = false;
private FiltersManager mFiltersManager = null;
private volatile Bitmap mOriginalBitmap = null;
private volatile Bitmap mResizedOriginalBitmap = null;
private volatile Allocation mOriginalAllocation = null;
private volatile Allocation mFiltersOnlyOriginalAllocation = null;
private volatile GeometryMetadata mPreviousGeometry = null;
private volatile float mPreviewScaleFactor = 1.0f;
public CachingPipeline(FiltersManager filtersManager) {
mFiltersManager = filtersManager;
}
public synchronized void reset() {
mOriginalBitmap = null; // just a reference to the bitmap in ImageLoader
if (mResizedOriginalBitmap != null) {
mResizedOriginalBitmap.recycle();
mResizedOriginalBitmap = null;
}
if (mOriginalAllocation != null) {
mOriginalAllocation.destroy();
mOriginalAllocation = null;
}
if (mFiltersOnlyOriginalAllocation != null) {
mFiltersOnlyOriginalAllocation.destroy();
mFiltersOnlyOriginalAllocation = null;
}
mPreviousGeometry = null;
mPreviewScaleFactor = 1.0f;
}
private String getType(RenderingRequest request) {
if (request.getType() == RenderingRequest.ICON_RENDERING) {
return "ICON_RENDERING";
}
if (request.getType() == RenderingRequest.FILTERS_RENDERING) {
return "FILTERS_RENDERING";
}
if (request.getType() == RenderingRequest.FULL_RENDERING) {
return "FULL_RENDERING";
}
if (request.getType() == RenderingRequest.GEOMETRY_RENDERING) {
return "GEOMETRY_RENDERING";
}
if (request.getType() == RenderingRequest.PARTIAL_RENDERING) {
return "PARTIAL_RENDERING";
}
return "UNKNOWN TYPE!";
}
private void setPresetParameters(ImagePreset preset) {
preset.setScaleFactor(mPreviewScaleFactor);
preset.setQuality(ImagePreset.QUALITY_PREVIEW);
preset.setupEnvironment(mFiltersManager);
}
public void setOriginal(Bitmap bitmap) {
mOriginalBitmap = bitmap;
Log.v(LOGTAG,"setOriginal, size " + bitmap.getWidth() + " x " + bitmap.getHeight());
ImagePreset preset = MasterImage.getImage().getPreset();
preset.setupEnvironment(mFiltersManager);
updateOriginalAllocation(preset);
}
private synchronized boolean updateOriginalAllocation(ImagePreset preset) {
Bitmap originalBitmap = mOriginalBitmap;
if (originalBitmap == null) {
return false;
}
GeometryMetadata geometry = preset.getGeometry();
if (mPreviousGeometry != null && geometry.equals(mPreviousGeometry)) {
return false;
}
if (DEBUG) {
Log.v(LOGTAG, "geometry has changed");
}
RenderScript RS = ImageFilterRS.getRenderScriptContext();
Allocation filtersOnlyOriginalAllocation = mFiltersOnlyOriginalAllocation;
mFiltersOnlyOriginalAllocation = Allocation.createFromBitmap(RS, originalBitmap,
Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT);
if (filtersOnlyOriginalAllocation != null) {
filtersOnlyOriginalAllocation.destroy();
}
Allocation originalAllocation = mOriginalAllocation;
mResizedOriginalBitmap = preset.applyGeometry(originalBitmap);
mOriginalAllocation = Allocation.createFromBitmap(RS, mResizedOriginalBitmap,
Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT);
if (originalAllocation != null) {
originalAllocation.destroy();
}
mPreviousGeometry = new GeometryMetadata(geometry);
return true;
}
public synchronized void render(RenderingRequest request) {
if ((request.getType() != RenderingRequest.PARTIAL_RENDERING
&& request.getBitmap() == null)
|| request.getImagePreset() == null) {
return;
}
if (DEBUG) {
Log.v(LOGTAG, "render image of type " + getType(request));
}
Bitmap bitmap = request.getBitmap();
ImagePreset preset = request.getImagePreset();
setPresetParameters(preset);
mFiltersManager.freeFilterResources(preset);
if (request.getType() == RenderingRequest.PARTIAL_RENDERING) {
ImageLoader loader = MasterImage.getImage().getImageLoader();
if (loader == null) {
Log.w(LOGTAG, "loader not yet setup, cannot handle: " + getType(request));
return;
}
bitmap = loader.getScaleOneImageForPreset(null, preset,
request.getBounds(), request.getDestination(), false);
if (bitmap == null) {
Log.w(LOGTAG, "could not get bitmap for: " + getType(request));
return;
}
}
if (request.getType() == RenderingRequest.FULL_RENDERING
|| request.getType() == RenderingRequest.GEOMETRY_RENDERING
|| request.getType() == RenderingRequest.FILTERS_RENDERING) {
updateOriginalAllocation(preset);
}
if (DEBUG) {
Log.v(LOGTAG, "after update, req bitmap (" + bitmap.getWidth() + "x" + bitmap.getHeight()
+" ? resizeOriginal (" + mResizedOriginalBitmap.getWidth() + "x"
+ mResizedOriginalBitmap.getHeight());
}
if (request.getType() == RenderingRequest.FULL_RENDERING
|| request.getType() == RenderingRequest.GEOMETRY_RENDERING) {
mOriginalAllocation.copyTo(bitmap);
} else if (request.getType() == RenderingRequest.FILTERS_RENDERING) {
mFiltersOnlyOriginalAllocation.copyTo(bitmap);
}
if (request.getType() == RenderingRequest.FULL_RENDERING
|| request.getType() == RenderingRequest.FILTERS_RENDERING
|| request.getType() == RenderingRequest.ICON_RENDERING
|| request.getType() == RenderingRequest.PARTIAL_RENDERING) {
Bitmap bmp = preset.apply(bitmap);
request.setBitmap(bmp);
mFiltersManager.freeFilterResources(preset);
}
}
public synchronized void compute(TripleBufferBitmap buffer, ImagePreset preset, int type) {
if (DEBUG) {
Log.v(LOGTAG, "compute preset " + preset);
preset.showFilters();
}
String thread = Thread.currentThread().getName();
long time = System.currentTimeMillis();
setPresetParameters(preset);
mFiltersManager.freeFilterResources(preset);
Bitmap resizedOriginalBitmap = mResizedOriginalBitmap;
if (updateOriginalAllocation(preset)) {
resizedOriginalBitmap = mResizedOriginalBitmap;
buffer.updateBitmaps(resizedOriginalBitmap);
}
Bitmap bitmap = buffer.getProducer();
long time2 = System.currentTimeMillis();
if (bitmap == null || (bitmap.getWidth() != resizedOriginalBitmap.getWidth())
|| (bitmap.getHeight() != resizedOriginalBitmap.getHeight())) {
buffer.updateBitmaps(resizedOriginalBitmap);
bitmap = buffer.getProducer();
}
mOriginalAllocation.copyTo(bitmap);
bitmap = preset.apply(bitmap);
mFiltersManager.freeFilterResources(preset);
time = System.currentTimeMillis() - time;
time2 = System.currentTimeMillis() - time2;
if (DEBUG) {
Log.v(LOGTAG, "Applying type " + type + " filters to bitmap "
+ bitmap + " (" + bitmap.getWidth() + " x " + bitmap.getHeight()
+ ") took " + time + " ms, " + time2 + " ms for the filter, on thread " + thread);
}
}
public boolean needsRepaint() {
TripleBufferBitmap buffer = MasterImage.getImage().getDoubleBuffer();
return buffer.checkRepaintNeeded();
}
public void setPreviewScaleFactor(float previewScaleFactor) {
mPreviewScaleFactor = previewScaleFactor;
}
public synchronized boolean isInitialized() {
return mOriginalBitmap != null;
}
}
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