/****************************************************************************** * * Copyright (c) 2019 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer. * * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * OpenGLCVImageViews.cpp * *****************************************************************************/ //2019/01/03 #include <opencv2/stitching.hpp> #define String _XtString #include <oz++/StringT.h> #include <oz++/opengl/OpenGLMainView.h> #include <oz++/opengl/OpenGLView.h> #include <oz++/opengl/OpenGLGC.h> #include <oz++/opengl/OpenGLTexture2D.h> #include <oz++/opengl/OpenGLBulletinBoard.h> #undef String #include <oz++/opencv/OpenCVImageInfo.h> #include <oz++/opencv/OpenCVImageView.h> #include <oz++/opencv/OpenCVImageFileReader.h> namespace OZ { class MainView :public OpenGLMainView { public: private: //Inner OpenCVImageView class start class SimpleCVView: public OpenCVImageView { private: cv::Mat originalImage; cv::Mat scaledImage; public: virtual void display() { show(scaledImage); } public: SimpleCVView(OpenGLBulletinBoard* parent, const char* name, Args& args) :OpenCVImageView(parent, name, args) { try { const char* filename = (const char*)args.get(XmNimageFileName); int imageLoadingFlag = args.get(XmNimageLoadingFlag); loadImage(filename, imageLoadingFlag); } catch (OZ::Exception ex) { caught(ex); } } ~SimpleCVView() { } void loadImage(const char* filename, int imageLoadingFlag= CV_LOAD_IMAGE_COLOR) { try { originalImage = readImage(filename, imageLoadingFlag); scaleImage(originalImage, scaledImage, 60); refresh(); } catch (OZ::Exception& ex) { caught(ex); } } }; //Inner OpenGLView class starts. class SimpleGLView: public OpenGLView { private: OpenGLGC gc; OpenGLTexture2D texture; bool textured; cv::Mat blurredImage; StringT<char> imageFile; int imageLoadingFlag; private: void imageToTexture() { try { int width = 0; int height = 0; OpenGLImageInfo imageInfo; OpenCVImageInfo cvImageInfo; cvImageInfo.getImageInfo(blurredImage, imageInfo); texture.image(imageInfo); } catch (OZ::Exception& ex) { caught(ex); } } public: virtual void display() { if (textured == false) { imageToTexture(); textured = true; } //Set a proportional perspective. gc.matrixMode(GL_PROJECTION); gc.loadIdentity(); gc.perspective(16.0, (double)width() / (double)height(), 0.3, 90.0); gc.matrixMode(GL_MODELVIEW); gc.clearColor(1.0, 1.0, 1.0, 1.0); gc.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); gc.begin(GL_QUADS); texture.coord(0.0, 0.0); gc.vertex(-1.0, 1.0, 1.0); texture.coord(1.0, 0.0); gc.vertex( 1.0, 1.0, 0.0); texture.coord(1.0, 1.0); gc.vertex( 1.0, -1.0, 1.0); texture.coord(0.0, 1.0); gc.vertex(-1.0, -1.0, 0.0); gc.end(); } virtual void resize(int w, int h) { if (w == 0 || h == 0) { return; } gc.matrixMode(GL_PROJECTION); gc.loadIdentity(); gc.ortho(-1.25, 1.25, -1.25, 1.25, 1., 20.); gc.matrixMode(GL_MODELVIEW); gc.loadIdentity(); gc.lookAt(0., 0., 10., 0., 0., 0., 0., 1., 0.); } virtual void initialize() { gc.enable(GL_DEPTH_TEST); gc.enable(GL_TEXTURE_2D); gc.rotate(20.0, 0.0, 0.0, 1.0); texture.bind(); texture.parameter(GL_TEXTURE_MIN_FILTER, GL_LINEAR); texture.parameter(GL_TEXTURE_MAG_FILTER, GL_LINEAR); texture.env(GL_TEXTURE_ENV_MODE, GL_MODULATE); } void blur(cv::Mat& originalImage) { int ksize = 13; int sigma = 10; ksize = (ksize/2)*2 + 1; blurredImage = cv::Mat::zeros(originalImage.size(), originalImage.type() ); //Blur operation is applied to the original image. cv::GaussianBlur(originalImage, blurredImage, cv::Size(ksize, ksize), (double)sigma, //sigmaX, (double)sigma); //sigmaY } public: SimpleGLView(OpenGLBulletinBoard* parent, const char* name, Args& args) :OpenGLView(parent, name, args) { textured = false; const char* filename = (const char*)args.get(XmNimageFileName); int imageLoadingFlag = args.get(XmNimageLoadingFlag); if (filename) { OpenCVImageFileReader reader; cv::Mat image = reader.load(filename, imageLoadingFlag); blur(image); } } ~SimpleGLView() { } }; //Inner class ends. private: SmartPtr<OpenGLBulletinBoard> bboard; SmartPtr<SimpleGLView> glView; SmartPtr<SimpleCVView> cvView; void resize(Dimension w, Dimension h) { if (cvView && glView) { cvView -> reshape(0, 0, w/2-1, h); glView -> reshape(w/2+1, 0, w/2-2, h); } } public: MainView(OpenGLApplication& applet, const char* name, Args& args) :OpenGLMainView(applet, name, args.set(XmNopenGLBufferType, OpenGL_DOUBLE_BUFFER)) { Args ar; bboard = new OpenGLBulletinBoard(this, "", ar); const char* filename = "../../opencv/images/flower.png"; ar.reset(); ar.set(XmNopenGLBufferType, (XtArgVal)getBufferType()); ar.set(XmNimageFileName, filename); ar.set(XmNimageLoadingFlag, cv::IMREAD_COLOR); glView = new SimpleGLView(bboard, "", ar); ar.reset(); ar.set(XmNopenGLBufferType, (XtArgVal)getBufferType()); ar.set(XmNimageFileName, filename); ar.set(XmNimageLoadingFlag, cv::IMREAD_COLOR); cvView = new SimpleCVView(bboard, "", ar); sendConfigureEvent(); char title[PATH_MAX]; sprintf(title, "%s - %s", filename, name); set(XmNtitle, title); } ~MainView() { } }; } // int main(int argc, char** argv) { try { const char* appclass = argv[0]; OpenGLApplication applet(appclass, argc, argv); Args args; args.set(XmNwidth, 800); args.set(XmNheight, 400); MainView view(applet, argv[0], args); view.realize(); applet.run(); } catch (OZ::Exception& ex) { caught(ex); } return 0; }