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 Renn 2865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Rennpublic class ColorTemperatureFilter extends Filter { 2965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "scale", hasDefault = true) 3165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private float mScale = 0.5f; 3265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @GenerateFieldPort(name = "tile_size", hasDefault = true) 3465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mTileSize = 640; 3565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private Program mProgram; 3765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private int mTarget = FrameFormat.TARGET_UNSPECIFIED; 3865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 3965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private final String mColorTemperatureShader = 4065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "precision mediump float;\n" + 4165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "uniform sampler2D tex_sampler_0;\n" + 4265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "uniform float scale;\n" + 4365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "varying vec2 v_texcoord;\n" + 4465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "void main() {\n" + 4565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " vec4 color = texture2D(tex_sampler_0, v_texcoord);\n" + 4665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " vec3 new_color = color.rgb;\n" + 4765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " new_color.r = color.r + color.r * ( 1.0 - color.r) * scale;\n" + 4865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " new_color.b = color.b - color.b * ( 1.0 - color.b) * scale;\n" + 4965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " if (scale > 0.0) { \n" + 500a1013229254cdc146d4ce2f4b4aef301b018f09Ruei-sung Lin " new_color.g = color.g + color.g * ( 1.0 - color.g) * scale * 0.25;\n" + 5165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " }\n" + 5265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " float max_value = max(new_color.r, max(new_color.g, new_color.b));\n" + 5365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " if (max_value > 1.0) { \n" + 5465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " new_color /= max_value;\n" + 5565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " } \n" + 5665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn " gl_FragColor = vec4(new_color, color.a);\n" + 5765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "}\n"; 5865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 5965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public ColorTemperatureFilter(String name) { 6065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn super(name); 6165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 6465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void setupPorts() { 6565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addMaskedInputPort("image", ImageFormat.create(ImageFormat.COLORSPACE_RGBA)); 6665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn addOutputBasedOnInput("image", "image"); 6765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 6865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 6965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 7065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public FrameFormat getOutputFormat(String portName, FrameFormat inputFormat) { 7165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn return inputFormat; 7265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 7365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 7465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void initProgram(FilterContext context, int target) { 7565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn switch (target) { 7665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn case FrameFormat.TARGET_GPU: 7765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn ShaderProgram shaderProgram = new ShaderProgram(context, mColorTemperatureShader); 7865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn shaderProgram.setMaximumTileSize(mTileSize); 7965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram = shaderProgram; 8065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn break; 8165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn default: 8365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn throw new RuntimeException("Filter Sharpen does not support frames of " + 8465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn "target " + target + "!"); 8565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mTarget = target; 8765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 8865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 8965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 9065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void process(FilterContext context) { 9165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Get input frame 9265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Frame input = pullInput("image"); 9365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn FrameFormat inputFormat = input.getFormat(); 9465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 9565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Create program if not created already 9665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mProgram == null || inputFormat.getTarget() != mTarget) { 9765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn initProgram(context, inputFormat.getTarget()); 9865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn updateParameters(); 9965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 10065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Create output frame 10265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn Frame output = context.getFrameManager().newFrame(inputFormat); 10365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Process 10565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram.process(input, output); 10665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 10765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Push output 10865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn pushOutput("image", output); 10965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn // Release pushed frame 11165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn output.release(); 11265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 11365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn private void updateParameters() { 11565953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn mProgram.setHostValue("scale", 2.0f * mScale - 1.0f); 11665953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 11765953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn 11865953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn @Override 11965953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn public void fieldPortValueUpdated(String name, FilterContext context) { 12065953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn if (mProgram != null) { 12165953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn updateParameters(); 12265953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 12365953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn } 12465953da4636fbf5f0a24b8f5f2b5fa7d76ff13d9Marius Renn} 125