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.GenerateFieldPort; 2465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.MutableFrameFormat; 2565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.Program; 2665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.ShaderProgram; 2765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.format.ImageFormat; 2865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpublic class ImageStitcher extends Filter { 3065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "xSlices") 3265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mXSlices; 3365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "ySlices") 3565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mYSlices; 3665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "padSize") 3865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mPadSize; 3965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Program mProgram; 4165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Frame mOutputFrame; 4265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mInputWidth; 4465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mInputHeight; 4565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mImageWidth; 4765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mImageHeight; 4865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mSliceWidth; 5065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mSliceHeight; 5165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mSliceIndex; 5365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public ImageStitcher(String name) { 5565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(name); 5665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mSliceIndex = 0; 5765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 6065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void setupPorts() { 6165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addMaskedInputPort("image", ImageFormat.create(ImageFormat.COLORSPACE_RGBA, 6265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn FrameFormat.TARGET_GPU)); 6365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addOutputBasedOnInput("image", "image"); 6465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 6765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public FrameFormat getOutputFormat(String portName, FrameFormat inputFormat) { 6865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return inputFormat; 6965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 7065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private FrameFormat calcOutputFormatForInput(FrameFormat format) { 7265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn MutableFrameFormat outputFormat = format.mutableCopy(); 7365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mInputWidth = format.getWidth(); 7565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mInputHeight = format.getHeight(); 7665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mSliceWidth = mInputWidth - 2 * mPadSize; 7865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mSliceHeight = mInputHeight - 2 * mPadSize; 7965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mImageWidth = mSliceWidth * mXSlices; 8165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mImageHeight = mSliceHeight * mYSlices; 8265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn outputFormat.setDimensions(mImageWidth, mImageHeight); 8465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return outputFormat; 8565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 8865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void process(FilterContext context) { 8965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Get input frame 9065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Frame input = pullInput("image"); 9165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn FrameFormat format = input.getFormat(); 9265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Create output frame 9465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mSliceIndex == 0) { 9565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mOutputFrame = context.getFrameManager().newFrame(calcOutputFormatForInput(format)); 9665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } else { 9765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if ((format.getWidth() != mInputWidth) || 9865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn (format.getHeight() != mInputHeight)) { 9965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // CHECK input format here 10065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException("Image size should not change."); 10165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Create the program if not created already 10565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mProgram == null) { 10665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram = ShaderProgram.createIdentity(context); 10765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // TODO(rslin) : not sure shifting by 0.5 is needed. 11065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn float x0 = ((float) mPadSize) / mInputWidth; 11165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn float y0 = ((float) mPadSize) / mInputHeight; 11265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn int outputOffsetX = (mSliceIndex % mXSlices) * mSliceWidth; 11465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn int outputOffsetY = (mSliceIndex / mXSlices) * mSliceHeight; 11565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn float outputWidth = (float) Math.min(mSliceWidth, mImageWidth - outputOffsetX); 11765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn float outputHeight = (float) Math.min(mSliceHeight, mImageHeight - outputOffsetY); 11865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // We need to set the source rect as well because the input are padded images. 12065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn ((ShaderProgram) mProgram).setSourceRect(x0, y0, 12165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn outputWidth / mInputWidth, 12265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn outputHeight / mInputHeight); 12365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 12465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn ((ShaderProgram) mProgram).setTargetRect(((float) outputOffsetX)/ mImageWidth, 12565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn ((float) outputOffsetY) / mImageHeight, 12665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn outputWidth / mImageWidth, 12765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn outputHeight / mImageHeight); 12865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 12965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Process this tile 13065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram.process(input, mOutputFrame); 13165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mSliceIndex++; 13265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 13365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Push output 13465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mSliceIndex == mXSlices * mYSlices) { 13565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn pushOutput("image", mOutputFrame); 13665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mOutputFrame.release(); 13765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mSliceIndex = 0; 13865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 13965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 14065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} 141