| OZ++ Sample: MipmapTexture |
/****************************************************************************** * * Copyright (c) 2015 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. * * * JPGMipmapTexture.cpp * *****************************************************************************/ //2015/07/28 Updated #include <oz++/opengl/OpenGLMainView.h> #include <oz++/opengl/OpenGLView.h> #include <oz++/opengl/OpenGLGC.h> #include <oz++/opengl/OpenGLTexture2D.h> #include <oz++/motif/FileDialog.h> namespace OZ { class MainView :public OpenGLMainView { private: //Inner class starts class SimpleView: public OpenGLView { private: OpenGLGC gc; SmartPtr<OpenGLTexture2D> texture; public: virtual void display() { gc.clearColor(1.0, 1.0, 1.0, 1.0); gc.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); gc.color(1.0, 1.0, 1.0); gc.rotate(5.0, 0.5, 1.0, 0.25); gc.normal(0.0, 0.0, 1.0); gc.begin(GL_QUADS); texture->coord(0.0, 0.0); gc.vertex(-1.0, 1.0, 0.0); 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, 0.0); 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); createTexture("./images/tulip.jpg"); } public: void createTexture(const char* filename) { if (texture) { texture = NULL; } texture = new OpenGLTexture2D(); 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); try { texture->mipmapFromFile(filename); } catch (Exception& ex) { caught(ex); } } public: SimpleView(OpenGLMainView* parent, const char* name, Args& args) :OpenGLView(parent, name, args) { } ~SimpleView() { } }; //Inner class ends. private: SmartPtr<SimpleView> view; SmartPtr<FileDialog> fileDialog; private: virtual void fileMenu(Action& action) { int menuId = action.getClientIntData(); printf("menuId %d\n", menuId); if (menuId == OPEN) { fileDialog->manage(); } else { OpenGLMainView::fileMenu(action); } } virtual void ok(Action& action) { XmFileSelectionBoxCallbackStruct* cbs = (XmFileSelectionBoxCallbackStruct*)action.getCallData(); StringT<char> filename; CompoundString cs(cbs->value, filename); printf("filename: %s\n", (const char*)filename); view -> createTexture((const char*)filename); unmap(); map(); fileDialog -> unmanage(); } void cancel(Action& action) { fileDialog -> unmanage(); } public: MainView(OpenGLApplication& applet, const char* name, Args& args) :OpenGLMainView(applet, name, args), view(NULL) { Args ar; ar.set(XmNopenGLBufferType, (XtArgVal)getBufferType()); view = new SimpleView(this, "", ar); ar.reset(); fileDialog = new FileDialog(this, "", ar); fileDialog -> getFileBox() -> addCallback(XmNokCallback, this, (Callback)&MainView::ok, NULL); fileDialog -> getFileBox() -> addCallback(XmNcancelCallback, this, (Callback)&MainView::cancel, NULL); } ~MainView() { } }; } // int main(int argc, char** argv) { try { const char* name = argv[0]; OpenGLApplication applet(name, argc, argv); Args args; args.set(XmNwidth, 640); args.set(XmNheight, 360); MainView view(applet, name, args); view.realize(); applet.run(); } catch (Exception& ex) { caught(ex); } return 0; }