/****************************************************************************** * * 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. * * * Texture.cpp * *****************************************************************************/ //2015/08/15 //If pngconf.h caused a compile error, // please see the following web site: // https://bugs.launchpad.net/ubuntu/+source/libpng/+bug/218409 //2016/12/27 Added the following line. #define PNG_SKIP_SETJMP_CHECK #include <oz++/xft/FTDC.h> #include <oz++/xft/FTFont.h> #include <oz++/motif/Image.h> #include <oz++/opengl/OpenGLMainView.h> #include <oz++/opengl/OpenGLView.h> #include <oz++/opengl/OpenGLGC.h> #include <oz++/opengl/OpenGLTexture2D.h> namespace OZ { class MainView :public OpenGLMainView { private: //Inner class starts. class SimpleView: public OpenGLView { private: OpenGLGC gc; OpenGLTexture2D texture; SmartPtr<Image> image; SmartPtr<FTFont> font20; SmartPtr<FTFont> font24; SmartPtr<FTFont> font40; Colormap colormap; private: void imageToTexture() { FTDC ftdc(getWidget()); unsigned int width = 0; unsigned int height = 0; get(XmNwidth, (XtArgVal)&width); get(XmNheight, (XtArgVal)&height); printf("width=%d height=%d\n", width, height); DC dc(this); Color color(this, colormap); Pixel white = color.allocNamedColor("white"); dc.setForeground(white); dc.fillRectangle(0, 0, width, height); Pixel red = color.allocNamedColor("red"); dc.setForeground(red); dc.fillRectangle(0, 0, 40, 40); Pixel green = color.allocNamedColor("green"); dc.setForeground(green); dc.fillEllipse(20, 40, 50, 50); Pixel blue = color.allocNamedColor("blue"); dc.setForeground(blue); dc.fillEllipse(40, 80, 90, 60); ftdc.setFont(font20); ftdc.drawStringUtf8(10, 80, "The Red Mars Attacks! 赤い火星の襲撃", "red"); ftdc.setFont(font24); ftdc.drawStringUtf8(10, 140, "The DarkGreen Man Strikes Back", "darkgreen"); ftdc.setFont(font40); ftdc.drawStringUtf8(10, 200, "The Navy Awakens 海軍の覚醒", "navy"); flush(); Display* display = getDisplay(); Window window= getWindow(); image = new Image(display, window, 0, 0, width, height, AllPlanes, ZPixmap); if (image) { XImage* ximage = image -> get(); if (ximage) { printf("XImage depth=%d\n", ximage->depth); texture.image(0, GL_RGBA, width, height, 0, GL_BGRA, //GL_RGBA, GL_UNSIGNED_BYTE, (void*)(ximage->data)); } } } public: virtual void display() { if (image == NULL) { imageToTexture(); } gc.clearColor(1.0, 1.0, 1.0, 1.0); gc.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); gc.rotate(1.0, 0.5, 1.0, 0.25); 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(); flush(); } 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); 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); } public: SimpleView(OpenGLMainView* parent, const char* name, Args& args) :OpenGLView(parent, name, args) { if (args.has(XmNcolormap)) { colormap = (Colormap)args.get(XmNcolormap); } image = NULL; Args ar; ar.reset(); ar.set(XftNfamily, "Times-12"); ar.set(XftNsize, 20.0); ar.set(XftNslant, 1); font20 = new FTFont(getDisplay(), ar); ar.reset(); ar.set(XftNfamily, "FreeSerif"); ar.set(XftNsize, 24.0); ar.set(XftNslant, 1); font24 = new FTFont(getDisplay(), ar); ar.reset(); ar.set(XftNfamily, "Times-12"); ar.set(XftNsize, 40.0); ar.set(XftNslant, 1); font40 = new FTFont(getDisplay(), ar); } ~SimpleView() { } }; //Inner class ends. private: SmartPtr<SimpleView> view; public: MainView(OpenGLApplication& applet, const char* name, Args& args) :OpenGLMainView(applet, name, args) //args.set(XmNopenGLBufferType, OpenGL_DOUBLE_BUFFER)) //args.set(XmNopenGLBufferType, OpenGL_SINGLE_BUFFER)) { Args ar; ar.set(XmNopenGLBufferType, (XtArgVal)getBufferType()); ar.set(XmNcolormap, getColormap()); view = new SimpleView(this, "", ar); } ~MainView() { } }; } // int main(int argc, char** argv) { try { const char* appclass = argv[0]; OpenGLApplication applet(appclass, argc, argv); Args args; args.set(XmNgeometry, "800x400"); MainView view(applet, argv[0], args); view.realize(); applet.run(); } catch (Exception& ex) { caught(ex); } return 0; }