/******************************************************************************
*
* 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;
}