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.ShaderProgram; 2665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.format.ImageFormat; 2765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.geometry.Point; 2865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.geometry.Quad; 2965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/** 3165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * The FixedRotationFilter rotates the input image clockwise, it only accepts 3265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * 4 rotation angles: 0, 90, 180, 270 3365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * @hide 3465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 3565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpublic class FixedRotationFilter extends Filter { 3665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "rotation", hasDefault = true) 3865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mRotation = 0; 3965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private ShaderProgram mProgram = null; 4165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public FixedRotationFilter(String name) { 4365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(name); 4465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 4565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 4765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void setupPorts() { 4865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addMaskedInputPort("image", ImageFormat.create(ImageFormat.COLORSPACE_RGBA, 4965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn FrameFormat.TARGET_GPU)); 5065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addOutputBasedOnInput("image", "image"); 5165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 5465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public FrameFormat getOutputFormat(String portName, FrameFormat inputFormat) { 5565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return inputFormat; 5665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 5965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void process(FilterContext context) { 6065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Frame input = pullInput("image"); 6165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mRotation == 0) { 6265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn pushOutput("image", input); 6365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return; 6465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn FrameFormat inputFormat = input.getFormat(); 6665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Create program if not created already 6865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mProgram == null) { 6965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram = ShaderProgram.createIdentity(context); 7065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 7165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn MutableFrameFormat outputFormat = inputFormat.mutableCopy(); 7265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn int width = inputFormat.getWidth(); 7365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn int height = inputFormat.getHeight(); 7465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point p1 = new Point(0.0f, 0.0f); 7565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point p2 = new Point(1.0f, 0.0f); 7665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point p3 = new Point(0.0f, 1.0f); 7765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Point p4 = new Point(1.0f, 1.0f); 7865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Quad sourceRegion; 7965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn switch (((int)Math.round(mRotation / 90f)) % 4) { 8065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn case 1: 8165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn sourceRegion = new Quad(p3,p1,p4,p2); 8265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn outputFormat.setDimensions(height, width); 8365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn break; 8465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn case 2: 8565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn sourceRegion = new Quad(p4,p3,p2,p1); 8665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn break; 8765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn case 3: 8865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn sourceRegion = new Quad(p2,p4,p1,p3); 8965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn outputFormat.setDimensions(height, width); 9065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn break; 9165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn case 0: 9265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn default: 9365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn sourceRegion = new Quad(p1,p2,p3,p4); 9465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn break; 9565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 9665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Create output frame 9765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Frame output = context.getFrameManager().newFrame(outputFormat); 9865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Set the source region 10065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram.setSourceRegion(sourceRegion); 10165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Process 10365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram.process(input, output); 10465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Push output 10665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn pushOutput("image", output); 10765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Release pushed frame 10965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn output.release(); 11065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 11165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} 112