//>
//Texture.cpp
//Copyright (c) 2016 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
// 2016/08/27 Updated to use OpenGLApplication instead of Application.
#include <oz++/motif/PixmapFile.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;
SmartPtr<OpenGLTexture2D> texture;
SmartPtr<PixmapFile> pixmapFile;
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(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();
}
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 = 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);
const char* jpgfile = "./images/fudasho_18.jpg";
try {
pixmapFile = new PixmapFile(getDisplay(), jpgfile);
flush();
XImage* ximage = pixmapFile -> getImage();
unsigned int width, height;
pixmapFile -> getGeometry(&width, &height);
printf("Pixmap w=%d h=%d\n", width, height);
if (ximage) {
printf("XImage depth=%d\n", ximage->depth);
texture -> image(0, GL_RGB, width, height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, (void*)(ximage->data));
XDestroyImage(ximage);
} else {
printf("ximage is NULL\n");
}
} 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;
public:
MainView(OpenGLApplication& applet, const char* name, Args& args)
:OpenGLMainView(applet, name, args)
{
Args ar;
ar.set(XmNopenGLBufferType, (XtArgVal)getBufferType());
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, "500x300");
MainView view(applet, argv[0], args);
view.realize();
applet.run();
} catch (Exception& ex) {
caught(ex);
}
return 0;
}
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