130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni/* 230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * Copyright (C) 2011 The Android Open Source Project 330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * 430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * Licensed under the Apache License, Version 2.0 (the "License"); 530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * you may not use this file except in compliance with the License. 630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * You may obtain a copy of the License at 730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * 830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * http://www.apache.org/licenses/LICENSE-2.0 930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * 1030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * Unless required by applicable law or agreed to in writing, software 1130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * distributed under the License is distributed on an "AS IS" BASIS, 1230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * See the License for the specific language governing permissions and 1430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni * limitations under the License. 1530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni */ 1630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 1730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 1830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceronipackage android.filterpacks.imageproc; 1930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 2030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.Filter; 21692c3bf7a1c7e2d5b1066cf7a1b057e993742c87Marius Rennimport android.filterfw.core.FilterContext; 2230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.Frame; 2330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.FrameFormat; 2421d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Rennimport android.filterfw.core.GenerateFieldPort; 2530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.GLFrame; 2630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.NativeProgram; 2730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.NativeFrame; 2830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.Program; 2930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.core.ShaderProgram; 3030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.filterfw.geometry.Quad; 31c0017fd82acec5d0427306ea5f536c3d78854f95Marius Rennimport android.filterfw.format.ImageFormat; 3221d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Rennimport android.filterfw.format.ObjectFormat; 3321d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn 3430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroniimport android.opengl.GLES20; 3530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 36a3bfbe5389c6146abe318a7add3fa688d69bc01bEino-Ville Talvala/** 37a3bfbe5389c6146abe318a7add3fa688d69bc01bEino-Ville Talvala * @hide 38a3bfbe5389c6146abe318a7add3fa688d69bc01bEino-Ville Talvala */ 3930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceronipublic class DrawRectFilter extends Filter { 4030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 4121d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn @GenerateFieldPort(name = "colorRed", hasDefault = true) 4230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni private float mColorRed = 0.8f; 4330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 4421d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn @GenerateFieldPort(name = "colorGreen", hasDefault = true) 4530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni private float mColorGreen = 0.8f; 4630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 4721d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn @GenerateFieldPort(name = "colorBlue", hasDefault = true) 4830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni private float mColorBlue = 0.0f; 4930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 5030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni private final String mVertexShader = 5130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni "attribute vec4 aPosition;\n" + 5230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni "void main() {\n" + 5330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni " gl_Position = aPosition;\n" + 5430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni "}\n"; 5530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 5630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni private final String mFixedColorFragmentShader = 5730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni "precision mediump float;\n" + 5830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni "uniform vec4 color;\n" + 5930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni "void main() {\n" + 6030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni " gl_FragColor = color;\n" + 6130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni "}\n"; 6230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 6321d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn private ShaderProgram mProgram; 6430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 6530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 6621d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn public DrawRectFilter(String name) { 6721d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn super(name); 6830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 6930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 7033d107bf315c9cc01a02a7a4a2c10a01f62e8c85Wei Hua @Override 7121d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn public void setupPorts() { 7221d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn addMaskedInputPort("image", ImageFormat.create(ImageFormat.COLORSPACE_RGBA, 7321d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn FrameFormat.TARGET_GPU)); 74bf4aaebc555cfb1e49ee411e3477203749fe6a11Marius Renn addMaskedInputPort("box", ObjectFormat.fromClass(Quad.class, FrameFormat.TARGET_SIMPLE)); 7521d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn addOutputBasedOnInput("image", "image"); 7630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 7730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 7833d107bf315c9cc01a02a7a4a2c10a01f62e8c85Wei Hua @Override 7921d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn public FrameFormat getOutputFormat(String portName, FrameFormat inputFormat) { 8021d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn return inputFormat; 8130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 8230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 8333d107bf315c9cc01a02a7a4a2c10a01f62e8c85Wei Hua @Override 84511360e61650864ea22a171159efe073c80d0cdbMarius Renn public void prepare(FilterContext context) { 85511360e61650864ea22a171159efe073c80d0cdbMarius Renn mProgram = new ShaderProgram(context, mVertexShader, mFixedColorFragmentShader); 8630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 8730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 8833d107bf315c9cc01a02a7a4a2c10a01f62e8c85Wei Hua @Override 8921d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn public void process(FilterContext env) { 9030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni // Get input frame 9121d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn Frame imageFrame = pullInput("image"); 9221d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn Frame boxFrame = pullInput("box"); 9330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 9430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni // Get the box 9530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni Quad box = (Quad)boxFrame.getObjectValue(); 9630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni box = box.scaled(2.0f).translated(-1.0f, -1.0f); 9730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 9830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni // Create output frame with copy of input 99f5ae8eafa7605c6593f62f873b62cb64a3254db3Marius Renn GLFrame output = (GLFrame)env.getFrameManager().duplicateFrame(imageFrame); 10030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 10130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni // Draw onto output 10230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni output.focus(); 10330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni renderBox(box); 10430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 10530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni // Push output 10621d0ac7403b836e32e2bdbdc8dc98f42b2dfa4e5Marius Renn pushOutput("image", output); 10730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 10830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni // Release pushed frame 10930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni output.release(); 11030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 11130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 11230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni private void renderBox(Quad box) { 11330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni final int FLOAT_SIZE = 4; 11430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 11530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni // Get current values 11630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni float[] color = {mColorRed, mColorGreen, mColorBlue, 1f}; 11730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni float[] vertexValues = { box.p0.x, box.p0.y, 11830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni box.p1.x, box.p1.y, 11930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni box.p3.x, box.p3.y, 12030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni box.p2.x, box.p2.y }; 12130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 12230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni // Set the program variables 12330ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni mProgram.setHostValue("color", color); 12430ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni mProgram.setAttributeValues("aPosition", vertexValues, 2); 12530ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni mProgram.setVertexCount(4); 12630ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni 12730ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni // Draw 12830ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni mProgram.beginDrawing(); 12930ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni GLES20.glLineWidth(1.0f); 13030ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni GLES20.glDrawArrays(GLES20.GL_LINE_LOOP, 0, 4); 13130ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni } 13230ab3fc173709a491c9e2e103f53fb7c0d1b96b7Rodrigo Carceroni} 133