OZ++ Sample: LightedTriangleRotationByTimerThread |
/******************************************************************************
*
* Copyright (c) 2016 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.
*
*
* LightedTriangleRotationByTimerThread.cpp
*
*****************************************************************************/
#include <oz++/Mutex.h>
#include <oz++/motif/RenderingTimer.h>
#include <oz++/opengl/OpenGLMainView.h>
#include <oz++/opengl/OpenGLView.h>
#include <oz++/opengl/OpenGLGC.h>
#include <oz++/opengl/OpenGLLight.h>
#include <oz++/opengl/OpenGLMaterial.h>
#include <oz++/opengl/Vertex3.h>
#include <oz++/opengl/Color4.h>
#include <oz++/opengl/FaceIndices.h>
#include <oz++/opengl/OpenGLClientState.h>
#include <oz++/opengl/OpenGLTriangleSurfaces.h>
namespace OZ {
class MainView :public OpenGLMainView {
private:
//Inner class starts.
class SimpleView: public OpenGLView {
private:
OpenGLGC gc;
SmartPtr<OpenGLTriangleSurfaces> surfaces;
float angle;
SmartPtr<RenderingTimer> timerThread;
Normal3* normals;
size_t numNormals;
int renderingInterval;
Mutex mutex;
public:
virtual void display()
{
mutex.lock();
angle += 0.2f;
static Vertex<3> vertices[] = {
//Face 1:
{-1.0,-1.0, 1.0 }, //0
{ 1.0,-1.0, 1.0 }, //1
{ 0.0, 1.0, 1.0 }, //2
};
static Color4 colors[] = {
{1.0f, 0.4f, 0.2f, 1.0f},
};
static FaceIndices<3> indices[] = {
{0, 1, 2} //Triangle
};
if (surfaces == NULL) {
surfaces = new OpenGLTriangleSurfaces(vertices, SizeOf(vertices), indices, SizeOf(indices));
normals = surfaces->calculateSurfaceNormals(numNormals);
}
gc.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
gc.loadIdentity();
try {
gc.clearColor(1.0, 1.0, 1.0, 1.0);
gc.translate(0.0f,0.0f, 0.0f);
gc.lookAt(0.0, 6.0, 12.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
gc.rotate(-angle, 0.0, 1.0, 0.0);
OpenGLClientState state1(GL_VERTEX_ARRAY);
OpenGLClientState state2(GL_COLOR_ARRAY);
OpenGLClientState state3(GL_NORMAL_ARRAY);
gc.vertexPointer(3, GL_FLOAT, 0, vertices);
gc.colorPointer (4, GL_FLOAT, 0, colors);
gc.normalPointer(GL_FLOAT, 0, normals);
gc.frontFace(GL_CCW);
gc.enable(GL_CULL_FACE);
gc.enable(GL_LIGHTING);
OpenGLLight light(GL_LIGHT0);
light.position(0, 0.0, 1.0, 0.0);
OpenGLMaterial material(GL_FRONT);
material.specular(1.0f, 1.0f, 1.0f, 1.0f); //white);
material.shininess(50.0);
material.diffuse(0.0f, 1.0f, 0.0f, 1.0f); //green;
gc.cullFace(GL_BACK);
gc.drawElements(GL_TRIANGLES, SizeOf(indices)*3, GL_UNSIGNED_INT, indices);
gc.cullFace(GL_FRONT);
gc.drawElements(GL_TRIANGLES, SizeOf(indices)*3, GL_UNSIGNED_INT, indices);
} catch (Exception& ex) {
caught(ex);
}
mutex.unlock();
}
virtual void resize(int w, int h)
{
if (w == 0 || h == 0) {
return;
}
gc.matrixMode(GL_PROJECTION);
gc.loadIdentity();
gc.perspective(16.0, (double)w / (double)h, 0.5, 40.0);
gc.matrixMode(GL_MODELVIEW);
}
virtual void initialize()
{
gc.enable( GL_DEPTH_TEST );
timerThread = new RenderingTimer(this, renderingInterval);
timerThread -> start();
}
public:
SimpleView(OpenGLMainView* parent, const char* name, Args& args)
:OpenGLView(parent, name, args),
angle(0.0),
renderingInterval(0)
{
renderingInterval = (int)args.get(XmNrenderingInterval);
}
~SimpleView()
{
}
};
//Inner class ends.
private:
SmartPtr<SimpleView> view;
public:
MainView(OpenGLApplication& applet, const char* name, Args& args)
:OpenGLMainView(applet, name, args)
{
int interval = (int)args.get(XmNrenderingInterval);
Args ar;
ar.set(XmNrenderingInterval, interval);
ar.set(XmNopenGLBufferType, (XtArgVal)getBufferType());
view = new SimpleView(this, "", ar);
}
~MainView()
{
}
};
}
//
int main(int argc, char** argv)
{
try {
XInitThreads();
const char* name = argv[0];
OpenGLApplication applet(name, argc, argv);
Args args;
args.set(XmNwidth, 400);
args.set(XmNheight, 300);
args.set(XmNrenderingInterval, 20); //20 millisec
MainView view(applet, name, args);
view.realize();
applet.run();
} catch (Exception& ex) {
caught(ex);
}
return 0;
}