16570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin/* 26570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * Copyright (C) 2011 The Android Open Source Project 36570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * 46570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * Licensed under the Apache License, Version 2.0 (the "License"); 56570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * you may not use this file except in compliance with the License. 66570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * You may obtain a copy of the License at 76570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * 86570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * http://www.apache.org/licenses/LICENSE-2.0 96570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * 106570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * Unless required by applicable law or agreed to in writing, software 116570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * distributed under the License is distributed on an "AS IS" BASIS, 126570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 136570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * See the License for the specific language governing permissions and 146570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin * limitations under the License. 156570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin */ 166570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 176570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linpackage android.filterpacks.imageproc; 186570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 196570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linimport android.filterfw.core.Filter; 206570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linimport android.filterfw.core.FilterContext; 216570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linimport android.filterfw.core.Frame; 226570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linimport android.filterfw.core.FrameFormat; 236570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linimport android.filterfw.core.GenerateFieldPort; 246570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linimport android.filterfw.core.KeyValueMap; 256570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linimport android.filterfw.core.NativeProgram; 266570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linimport android.filterfw.core.NativeFrame; 276570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linimport android.filterfw.core.Program; 286570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linimport android.filterfw.core.ShaderProgram; 296570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linimport android.filterfw.format.ImageFormat; 306570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 316570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 326570ec1c3edb8071446791001872d8ba87659200Ruei-sung Linpublic class NegativeFilter extends Filter { 336570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 346570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin @GenerateFieldPort(name = "tile_size", hasDefault = true) 356570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin private int mTileSize = 640; 366570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 376570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin private Program mProgram; 386570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin private int mTarget = FrameFormat.TARGET_UNSPECIFIED; 396570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 406570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin private final String mNegativeShader = 416570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin "precision mediump float;\n" + 426570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin "uniform sampler2D tex_sampler_0;\n" + 436570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin "varying vec2 v_texcoord;\n" + 446570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin "void main() {\n" + 456570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin " vec4 color = texture2D(tex_sampler_0, v_texcoord);\n" + 466570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin " gl_FragColor = vec4(1.0 - color.rgb, color.a);\n" + 476570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin "}\n"; 486570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 496570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin public NegativeFilter(String name) { 506570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin super(name); 516570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin } 526570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 536570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin @Override 546570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin public void setupPorts() { 556570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin addMaskedInputPort("image", ImageFormat.create(ImageFormat.COLORSPACE_RGBA)); 566570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin addOutputBasedOnInput("image", "image"); 576570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin } 586570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 596570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin @Override 606570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin public FrameFormat getOutputFormat(String portName, FrameFormat inputFormat) { 616570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin return inputFormat; 626570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin } 636570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 646570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin public void initProgram(FilterContext context, int target) { 656570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin switch (target) { 666570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin case FrameFormat.TARGET_GPU: 676570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin ShaderProgram shaderProgram = new ShaderProgram(context, mNegativeShader); 686570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin shaderProgram.setMaximumTileSize(mTileSize); 696570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin mProgram = shaderProgram; 706570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin break; 716570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 726570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin default: 736570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin throw new RuntimeException("Filter Sharpen does not support frames of " + 746570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin "target " + target + "!"); 756570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin } 766570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin mTarget = target; 776570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin } 786570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 796570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin @Override 806570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin public void process(FilterContext context) { 816570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin // Get input frame 826570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin Frame input = pullInput("image"); 836570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin FrameFormat inputFormat = input.getFormat(); 846570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 856570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin // Create output frame 866570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin Frame output = context.getFrameManager().newFrame(inputFormat); 876570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 886570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin // Create program if not created already 896570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin if (mProgram == null || inputFormat.getTarget() != mTarget) { 906570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin initProgram(context, inputFormat.getTarget()); 916570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin } 926570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 936570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin // Process 946570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin mProgram.process(input, output); 956570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 966570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin // Push output 976570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin pushOutput("image", output); 986570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 996570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin // Release pushed frame 1006570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin output.release(); 1016570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin } 1026570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin 1036570ec1c3edb8071446791001872d8ba87659200Ruei-sung Lin} 104