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.Program; 2565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.ShaderProgram; 2665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.format.ImageFormat; 2765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.graphics.Bitmap; 2865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.graphics.Canvas; 2965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.graphics.Color; 3065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.graphics.Paint; 3165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/** 3365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * @hide 3465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 3565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpublic class RedEyeFilter extends Filter { 3665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private static final float RADIUS_RATIO = 0.06f; 3865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private static final float MIN_RADIUS = 10.0f; 3965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private static final float DEFAULT_RED_INTENSITY = 1.30f; 4065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "centers") 4265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private float[] mCenters; 4365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "tile_size", hasDefault = true) 4565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mTileSize = 640; 4665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Frame mRedEyeFrame; 4865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Bitmap mRedEyeBitmap; 4965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private final Canvas mCanvas = new Canvas(); 5165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private final Paint mPaint = new Paint(); 5265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private float mRadius; 5465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mWidth = 0; 5665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mHeight = 0; 5765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Program mProgram; 5965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mTarget = FrameFormat.TARGET_UNSPECIFIED; 6065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private final String mRedEyeShader = 6265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "precision mediump float;\n" + 6365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "uniform sampler2D tex_sampler_0;\n" + 6465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "uniform sampler2D tex_sampler_1;\n" + 6565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "uniform float intensity;\n" + 6665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "varying vec2 v_texcoord;\n" + 6765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "void main() {\n" + 6865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " vec4 color = texture2D(tex_sampler_0, v_texcoord);\n" + 6965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " vec4 mask = texture2D(tex_sampler_1, v_texcoord);\n" + 7065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " if (mask.a > 0.0) {\n" + 7165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " float green_blue = color.g + color.b;\n" + 7265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " float red_intensity = color.r / green_blue;\n" + 7365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " if (red_intensity > intensity) {\n" + 7465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " color.r = 0.5 * green_blue;\n" + 7565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " }\n" + 7665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " }\n" + 7765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " gl_FragColor = color;\n" + 7865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "}\n"; 7965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public RedEyeFilter(String name) { 8165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(name); 8265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 8565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void setupPorts() { 8665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addMaskedInputPort("image", ImageFormat.create(ImageFormat.COLORSPACE_RGBA)); 8765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addOutputBasedOnInput("image", "image"); 8865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 9165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public FrameFormat getOutputFormat(String portName, FrameFormat inputFormat) { 9265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return inputFormat; 9365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 9465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void initProgram(FilterContext context, int target) { 9665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn switch (target) { 9765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn case FrameFormat.TARGET_GPU: 9865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn ShaderProgram shaderProgram = new ShaderProgram(context, mRedEyeShader); 9965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn shaderProgram.setMaximumTileSize(mTileSize); 10065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram = shaderProgram; 101c733a79a4309a75ecda1731b2ffc84a8b9ac4f3cRuei-sung Lin mProgram.setHostValue("intensity", DEFAULT_RED_INTENSITY); 10265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn break; 10365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn default: 10465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException("Filter RedEye does not support frames of " + 10565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "target " + target + "!"); 10665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mTarget = target; 10865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 11165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void process(FilterContext context) { 11265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Get input frame 11365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Frame input = pullInput("image"); 11465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn FrameFormat inputFormat = input.getFormat(); 11565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Create output frame 11765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Frame output = context.getFrameManager().newFrame(inputFormat); 11865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Create program if not created already 12065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mProgram == null || inputFormat.getTarget() != mTarget) { 12165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn initProgram(context, inputFormat.getTarget()); 12265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 12365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 12465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Check if the frame size has changed 12565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (inputFormat.getWidth() != mWidth || inputFormat.getHeight() != mHeight) { 12665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mWidth = inputFormat.getWidth(); 12765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mHeight = inputFormat.getHeight(); 12865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 12965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn createRedEyeFrame(context); 13065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 13165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Process 13265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Frame[] inputs = {input, mRedEyeFrame}; 13365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram.process(inputs, output); 13465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 13565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Push output 13665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn pushOutput("image", output); 13765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 13865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Release pushed frame 13965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn output.release(); 14065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 14165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Release unused frame 14265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mRedEyeFrame.release(); 14365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mRedEyeFrame = null; 14465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 14565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 14665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 14765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void fieldPortValueUpdated(String name, FilterContext context) { 14865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mProgram != null) { 14965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn updateProgramParams(); 15065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 15165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 15265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 153a75c7bbc633a6ebd35a0651be5c7a79b83d0c5c0Ruei-sung Lin private void createRedEyeFrame(FilterContext context) { 15465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn int bitmapWidth = mWidth / 2; 15565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn int bitmapHeight = mHeight / 2; 15665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 157a75c7bbc633a6ebd35a0651be5c7a79b83d0c5c0Ruei-sung Lin Bitmap redEyeBitmap = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Bitmap.Config.ARGB_8888); 158a75c7bbc633a6ebd35a0651be5c7a79b83d0c5c0Ruei-sung Lin mCanvas.setBitmap(redEyeBitmap); 15965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mPaint.setColor(Color.WHITE); 16065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mRadius = Math.max(MIN_RADIUS, RADIUS_RATIO * Math.min(bitmapWidth, bitmapHeight)); 16165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 162a75c7bbc633a6ebd35a0651be5c7a79b83d0c5c0Ruei-sung Lin for (int i = 0; i < mCenters.length; i += 2) { 163a75c7bbc633a6ebd35a0651be5c7a79b83d0c5c0Ruei-sung Lin mCanvas.drawCircle(mCenters[i] * bitmapWidth, mCenters[i + 1] * bitmapHeight, 164a75c7bbc633a6ebd35a0651be5c7a79b83d0c5c0Ruei-sung Lin mRadius, mPaint); 165a75c7bbc633a6ebd35a0651be5c7a79b83d0c5c0Ruei-sung Lin } 16665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 167a75c7bbc633a6ebd35a0651be5c7a79b83d0c5c0Ruei-sung Lin FrameFormat format = ImageFormat.create(bitmapWidth, bitmapHeight, 16865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn ImageFormat.COLORSPACE_RGBA, 16965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn FrameFormat.TARGET_GPU); 17065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mRedEyeFrame = context.getFrameManager().newFrame(format); 171a75c7bbc633a6ebd35a0651be5c7a79b83d0c5c0Ruei-sung Lin mRedEyeFrame.setBitmap(redEyeBitmap); 172a75c7bbc633a6ebd35a0651be5c7a79b83d0c5c0Ruei-sung Lin redEyeBitmap.recycle(); 17365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 17465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 17565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private void updateProgramParams() { 17665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if ( mCenters.length % 2 == 1) { 17765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException("The size of center array must be even."); 17865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 17965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 18065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} 181