165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/* 265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Copyright (C) 2011 The Android Open Source Project 365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Licensed under the Apache License, Version 2.0 (the "License"); 565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * you may not use this file except in compliance with the License. 665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * You may obtain a copy of the License at 765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * http://www.apache.org/licenses/LICENSE-2.0 965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 1065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * Unless required by applicable law or agreed to in writing, software 1165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * distributed under the License is distributed on an "AS IS" BASIS, 1265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * See the License for the specific language governing permissions and 1465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * limitations under the License. 1565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 1665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 1765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpackage android.filterpacks.imageproc; 1865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 1965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.Filter; 2065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.FilterContext; 2165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.Frame; 2265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.FrameFormat; 2365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.FrameManager; 2465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.GenerateFieldPort; 2565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.KeyValueMap; 2665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.MutableFrameFormat; 2765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.Program; 2865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.ShaderProgram; 2965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.format.ImageFormat; 3065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpublic class ImageSlicer extends Filter { 3265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "xSlices") 3465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mXSlices; 3565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "ySlices") 3765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mYSlices; 3865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "padSize") 4065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mPadSize; 4165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // The current slice index from 0 to xSlices * ySlices 4365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mSliceIndex; 4465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Frame mOriginalFrame; 4665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Program mProgram; 4865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mInputWidth; 5065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mInputHeight; 5165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mSliceWidth; 5365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mSliceHeight; 5465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mOutputWidth; 5665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mOutputHeight; 5765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public ImageSlicer(String name) { 5965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(name); 6065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mSliceIndex = 0; 6165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 6465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void setupPorts() { 6565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addMaskedInputPort("image", ImageFormat.create(ImageFormat.COLORSPACE_RGBA, 6665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn FrameFormat.TARGET_GPU)); 6765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addOutputBasedOnInput("image", "image"); 6865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 7165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public FrameFormat getOutputFormat(String portName, FrameFormat inputFormat) { 7265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return inputFormat; 7365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 7465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private void calcOutputFormatForInput(Frame frame) { 7665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // calculate the output size based on input size, xSlices, and ySlices 7865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mInputWidth = frame.getFormat().getWidth(); 7965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mInputHeight = frame.getFormat().getHeight(); 8065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mSliceWidth = (mInputWidth + mXSlices - 1) / mXSlices; 8265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mSliceHeight = (mInputHeight + mYSlices - 1)/ mYSlices; 8365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mOutputWidth = mSliceWidth + mPadSize * 2; 8565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mOutputHeight = mSliceHeight + mPadSize * 2; 8665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 9065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void process(FilterContext context) { 9165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Get input frame 9365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mSliceIndex == 0) { 9465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mOriginalFrame = pullInput("image"); 9565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn calcOutputFormatForInput(mOriginalFrame); 9665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 9765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn FrameFormat inputFormat = mOriginalFrame.getFormat(); 9965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn MutableFrameFormat outputFormat = inputFormat.mutableCopy(); 10065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn outputFormat.setDimensions(mOutputWidth, mOutputHeight); 10165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Create output frame 10365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Frame output = context.getFrameManager().newFrame(outputFormat); 10465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Create the program if not created already 10665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mProgram == null) { 10765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram = ShaderProgram.createIdentity(context); 10865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Calculate the four corner of the source region 11165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn int xSliceIndex = mSliceIndex % mXSlices; 11265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn int ySliceIndex = mSliceIndex / mXSlices; 11365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // TODO(rslin) : not sure shifting by 0.5 is needed. 11565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn float x0 = (xSliceIndex * mSliceWidth - mPadSize) / ((float) mInputWidth); 11665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn float y0 = (ySliceIndex * mSliceHeight - mPadSize) / ((float) mInputHeight); 11765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn ((ShaderProgram) mProgram).setSourceRect(x0, y0, 11965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn ((float) mOutputWidth) / mInputWidth, 12065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn ((float) mOutputHeight) / mInputHeight); 12165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 12265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Process 12365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram.process(mOriginalFrame, output); 12465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mSliceIndex++; 12565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 12665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mSliceIndex == mXSlices * mYSlices) { 12765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mSliceIndex = 0; 12865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mOriginalFrame.release(); 12965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn setWaitsOnInputPort("image", true); 13065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } else { 13165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Retain the original frame so it can be used next time. 13265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mOriginalFrame.retain(); 13365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn setWaitsOnInputPort("image", false); 13465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 13565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 13665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Push output 13765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn pushOutput("image", output); 13865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 13965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Release pushed frame 14065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn output.release(); 14165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 14265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} 143