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 Renn 1865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpackage android.filterpacks.imageproc; 1965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 2065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.Filter; 2165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.FilterContext; 2265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.Frame; 2365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.FrameFormat; 2465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.GenerateFieldPort; 2565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.MutableFrameFormat; 2665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.Program; 2765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.core.ShaderProgram; 2865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.geometry.Quad; 2965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.format.ImageFormat; 3065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennimport android.filterfw.format.ObjectFormat; 3165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn/** 3365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn * @hide 3465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn */ 3565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpublic class CropFilter extends Filter { 3665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Program mProgram; 3865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private FrameFormat mLastFormat = null; 3965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "owidth") 4165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mOutputWidth = -1; 4265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "oheight") 4465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mOutputHeight = -1; 4565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "fillblack") 4765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private boolean mFillBlack = false; 4865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 4965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public CropFilter(String name) { 5065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(name); 5165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 5265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private final String mFragShader = 5465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "precision mediump float;\n" + 5565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "uniform sampler2D tex_sampler_0;\n" + 5665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "varying vec2 v_texcoord;\n" + 5765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "void main() {\n" + 5865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " const vec2 lo = vec2(0.0, 0.0);\n" + 5965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " const vec2 hi = vec2(1.0, 1.0);\n" + 6065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " const vec4 black = vec4(0.0, 0.0, 0.0, 1.0);\n" + 6165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " bool out_of_bounds =\n" + 6265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " any(lessThan(v_texcoord, lo)) ||\n" + 6365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " any(greaterThan(v_texcoord, hi));\n" + 6465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " if (out_of_bounds) {\n" + 6565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " gl_FragColor = black;\n" + 6665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " } else {\n" + 6765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " gl_FragColor = texture2D(tex_sampler_0, v_texcoord);\n" + 6865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " }\n" + 6965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "}\n"; 7065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 7265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void setupPorts() { 7365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addMaskedInputPort("image", ImageFormat.create(ImageFormat.COLORSPACE_RGBA)); 7465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addMaskedInputPort("box", ObjectFormat.fromClass(Quad.class, FrameFormat.TARGET_SIMPLE)); 7565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addOutputBasedOnInput("image", "image"); 7665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 7765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 7965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public FrameFormat getOutputFormat(String portName, FrameFormat inputFormat) { 8065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Make sure output size is set to unspecified, as we do not know what we will be resizing 8165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // to. 8265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn MutableFrameFormat outputFormat = inputFormat.mutableCopy(); 8365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn outputFormat.setDimensions(FrameFormat.SIZE_UNSPECIFIED, FrameFormat.SIZE_UNSPECIFIED); 8465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return outputFormat; 8565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn protected void createProgram(FilterContext context, FrameFormat format) { 8865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // TODO: Add CPU version 8965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mLastFormat != null && mLastFormat.getTarget() == format.getTarget()) return; 9065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mLastFormat = format; 9165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram = null; 9265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn switch (format.getTarget()) { 9365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn case FrameFormat.TARGET_GPU: 9465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if(mFillBlack) 9565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram = new ShaderProgram(context, mFragShader); 9665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn else 9765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram = ShaderProgram.createIdentity(context); 9865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn break; 10065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mProgram == null) { 10265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException("Could not create a program for crop filter " + this + "!"); 10365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 10765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void process(FilterContext env) { 10865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Get input frame 10965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Frame imageFrame = pullInput("image"); 11065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Frame boxFrame = pullInput("box"); 11165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn createProgram(env, imageFrame.getFormat()); 11365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Get the box 11565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Quad box = (Quad)boxFrame.getObjectValue(); 11665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Create output format 11865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn MutableFrameFormat outputFormat = imageFrame.getFormat().mutableCopy(); 11965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn outputFormat.setDimensions(mOutputWidth == -1 ? outputFormat.getWidth() : mOutputWidth, 12065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mOutputHeight == -1 ? outputFormat.getHeight() : mOutputHeight); 12165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 12265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Create output frame 12365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Frame output = env.getFrameManager().newFrame(outputFormat); 12465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 12565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Set the program parameters 12665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mProgram instanceof ShaderProgram) { 12765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn ShaderProgram shaderProgram = (ShaderProgram)mProgram; 12865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn shaderProgram.setSourceRegion(box); 12965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 13065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 13165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram.process(imageFrame, output); 13265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 13365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Push output 13465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn pushOutput("image", output); 13565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 13665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Release pushed frame 13765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn output.release(); 13865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 13965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 14065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 14165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} 142