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wxWidgetsSpeedTests.cpp
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wxWidgetsSpeedTests.cpp
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/*
The BasicGLPane sections are covered by -
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
The remainder of the code is covered by -
MIT License
Copyright (c) 2023 RightHalfPlane
*/
//c++ -std=c++11 -o mainSpeed.x wxWidgetsSpeedTests.cpp -lGLEW `/usr/local/bin/wx-config --cxxflags --libs --gl-libs` -lGLU -lGL
//c++ -std=c++11 -o mainSpeed.x wxWidgetsSpeedTests.cpp -lGLEW `/usr/bin/wx-config --cxxflags --libs --gl-libs` -lGLU -lGL
//c++ -std=c++11 -o mainSpeed.x wxWidgetsSpeedTests.cpp -lGLEW `/opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.1/bin/wx-config --cxxflags --libs --gl-libs` -Wno-deprecated-declarations
#define GLEW_IN
#ifdef GLEW_IN
#include <GL/glew.h>
#endif
#include <wx/wx.h>
#include <wx/sizer.h>
#include <wx/radiobox.h>
#include <wx/textctrl.h>
#include <wx/glcanvas.h>
#include <string.h>
#if !wxUSE_GLCANVAS
#error "OpenGL required: set wxUSE_GLCANVAS to 1 and rebuild the library"
#endif
// include OpenGL
#ifdef __WXMAC__
#include "OpenGL/glu.h"
#include "OpenGL/gl.h"
#else
#include <GL/glu.h>
#include <GL/gl.h>
#endif
#include <sys/timeb.h>
struct P{
double x;
double y;
double z;
};
struct Pf{
float x;
float y;
float z;
};
struct Nodes{
float x1,y1,z1;
float x2,y2,z2;
float x3,y3,z3;
};
struct Colors{
struct Pf c1;
struct Pf c2;
struct Pf c3;
};
struct Norm{
struct Pf n1;
struct Pf n2;
struct Pf n3;
};
struct Color{
float r;
float g;
float b;
};
struct Scene{
float xmin,xmax,ymin,ymax,zmin,zmax;
struct P Eye;
double WorldSize;
double WorldStepSize;
struct P Target;
GLuint polyList;
long nt;
long nq;
double Degrees;
GLfloat nearv;
GLfloat farv;
struct P Lamp;
int pointClick;
};
int buildtriangles(struct Scene *scene,struct Nodes *trin,struct Norm *norm,struct Colors *color,GLuint *faces,long *trianglemax,long size);
double rtime(void);
extern struct P Norm(struct P *p1);
extern struct P CrossN(struct P *v1,struct P *v2);
extern struct P Sub(struct P *p1,struct P *p2);
extern struct P Add(struct P *p1,struct P *p2);
extern struct P Mult(struct P *p1,double Factor);
extern double Len(struct P *v1);
extern double Dot(struct P *v1,struct P *v2);
extern struct P p(double x,double y,double z);
extern struct P Subf(struct Pf *p1,struct Pf *p2);
enum {
ID_INSERT = 10004,
ID_DELETE,
ID_RENDER,
TEXT_CLIPBOARD_COPY,
TEXT_CLIPBOARD_PASTE,
};
class BasicGLPane : public wxGLCanvas
{
wxGLContext* m_context;
public:
BasicGLPane(wxFrame* parent, int* args);
virtual ~BasicGLPane();
void resized(wxSizeEvent& evt);
int getWidth();
int getHeight();
float angle;
void render(wxPaintEvent& evt);
void render2();
void prepare3DViewport(int topleft_x, int topleft_y, int bottomrigth_x, int bottomrigth_y);
void prepare2DViewport(int topleft_x, int topleft_y, int bottomrigth_x, int bottomrigth_y);
void InitOpenGl();
int dotriangles(long n);
int doTestSpeed(struct Scene *scene);
// events
void mouseMoved(wxMouseEvent& event);
void mouseDown(wxMouseEvent& event);
void mouseWheelMoved(wxMouseEvent& event);
void mouseReleased(wxMouseEvent& event);
void rightClick(wxMouseEvent& event);
void mouseLeftWindow(wxMouseEvent& event);
void keyPressed(wxKeyEvent& event);
void keyReleased(wxKeyEvent& event);
void OnChar(wxKeyEvent& event);
void DeleteRow( wxCommandEvent& event );
DECLARE_EVENT_TABLE()
};
class BasicGLPane2 : public wxFrame
{
wxGLContext* m_context;
public:
BasicGLPane2(wxFrame *frame, const wxString& title, const wxPoint& pos,
const wxSize& size, long style = wxDEFAULT_FRAME_STYLE);
virtual ~BasicGLPane2();
void resized(wxSizeEvent& evt);
int getWidth();
int getHeight();
float angle;
wxRadioBox *radioBoxp;
wxTextCtrl *text;
void render(wxPaintEvent& evt);
// events
void mouseMoved(wxMouseEvent& event);
void mouseDown(wxMouseEvent& event);
void mouseWheelMoved(wxMouseEvent& event);
void mouseReleased(wxMouseEvent& event);
void rightClick(wxMouseEvent& event);
void mouseLeftWindow(wxMouseEvent& event);
void keyPressed(wxKeyEvent& event);
void keyReleased(wxKeyEvent& event);
void OnChar(wxKeyEvent& event);
void DeleteRow( wxCommandEvent& event );
void OnButton( wxCommandEvent& event );
void OnButton2( wxCommandEvent& event );
void radioBox( wxCommandEvent& event );
DECLARE_EVENT_TABLE()
};
enum
{
ButtonPage_Button = wxID_HIGHEST,
ButtonPage_ChangeNote,
ID_RADIOBOX,
ID_TEXTCTRL
};
struct Scene sceneG;
char WarningBuff[256];
struct Nodes *trin;
struct Norm *norm;
struct Colors *color;
GLuint *faces1;
long int triangle=100;
long trianglemax;
GLuint vboId = 0; // ID of VBO for vertex arrays
#define ImmediateMode 0
#define CompiliedMode 1
#define VertexArrayMode 2
#define VboMode 3 /* glDrawArrays */
#define VboMode2 4 /* glDrawElements */
int runMode = ImmediateMode;
static char *mode[] =
{
(char *)"Immediate",
(char *)"Compilied",
(char *)"VertexArray",
(char *)"glDrawArrays",
(char *)"glDrawElements",
};
int buildList(struct Scene *scene);
void SetLighting(unsigned int mode);
BasicGLPane *glPane;
class MyApp: public wxApp
{
virtual bool OnInit();
wxFrame *frame;
wxFrame *frame2;
BasicGLPane2 *glPane2;
public:
};
bool MyApp::OnInit()
{
if ( !wxApp::OnInit() )
return false;
wxBoxSizer* sizer = new wxBoxSizer(wxHORIZONTAL);
frame = new BasicGLPane2( (wxFrame*) NULL, "Controls",
wxPoint(20,20), wxSize(400,350));
frame2 = new wxFrame((wxFrame *)NULL, -1, wxT("Hello GL World"), wxPoint(50,50), wxSize(800,600));
int args[] = {WX_GL_RGBA, WX_GL_DOUBLEBUFFER, WX_GL_DEPTH_SIZE, 16, 0};
glPane = new BasicGLPane( (wxFrame*) frame2, args);
sizer->Add(glPane, 1, wxEXPAND);
frame2->SetSizer(sizer);
frame2->SetAutoLayout(true);
frame2->Show();
frame2->Raise();
glPane->InitOpenGl();
return true;
}
IMPLEMENT_APP(MyApp)
BEGIN_EVENT_TABLE(BasicGLPane2, wxFrame)
EVT_MOTION(BasicGLPane2::mouseMoved)
EVT_LEFT_DOWN(BasicGLPane2::mouseDown)
EVT_BUTTON(ButtonPage_Button, BasicGLPane2::OnButton)
EVT_BUTTON(ButtonPage_ChangeNote, BasicGLPane2::OnButton2)
EVT_RADIOBOX(ID_RADIOBOX, BasicGLPane2::radioBox)
END_EVENT_TABLE()
void BasicGLPane2::mouseMoved(wxMouseEvent& event) {}
void BasicGLPane2::mouseDown(wxMouseEvent& event) {/*printf("mouseDown 2\n");*/}
void BasicGLPane2::OnButton(wxCommandEvent& event)
{
exit(0);
}
void BasicGLPane2::OnButton2(wxCommandEvent& event)
{
wxString value=text->GetValue();
int nt=atof(value.mb_str().data());
//printf("triangle %ld\n",triangle);
runMode=radioBoxp->GetSelection();
if(nt != triangle){
triangle=nt;
glPane->dotriangles(triangle);
}
buildList(&sceneG);
glPane->doTestSpeed(&sceneG);
}
void BasicGLPane2::radioBox(wxCommandEvent& event)
{
runMode=radioBoxp->GetSelection();
//printf("radioBox runMode %d\n",radioBoxp->GetSelection());
}
BasicGLPane2::BasicGLPane2(wxFrame *frame, const wxString& title, const wxPoint& pos,
const wxSize& size, long style)
: wxFrame(frame, wxID_ANY, title, pos, size, style)
{
wxArrayString strings;
strings.Add(wxT("Immediate"));
strings.Add(wxT("Compilied"));
strings.Add(wxT("VertexArray"));
strings.Add(wxT("glDrawArrays"));
strings.Add(wxT("glDrawElements"));
radioBoxp = new wxRadioBox(this,ID_RADIOBOX,wxT("Render Mode"),
wxDefaultPosition, wxDefaultSize,strings,1,wxRA_SPECIFY_COLS);
wxButton *button=new wxButton(this,ButtonPage_ChangeNote,wxT("Run"));
wxButton* cancel = new wxButton (this, ButtonPage_Button,wxT("Quit"));
text=new wxTextCtrl(this,ID_TEXTCTRL,wxT("1000"),
wxDefaultPosition, wxDefaultSize);
wxStaticText *stext=new wxStaticText(this,wxID_STATIC,wxT("Triangle Groups:"),
wxDefaultPosition, wxDefaultSize,wxALIGN_LEFT);
wxBoxSizer* sizer = new wxBoxSizer(wxHORIZONTAL);
sizer->Add(stext, 0, wxEXPAND|wxALL, 5);
sizer->Add(text, 0, wxEXPAND|wxALL, 5);
wxBoxSizer* sizer3 = new wxBoxSizer(wxVERTICAL);
sizer3->Add(radioBoxp, 0, wxEXPAND|wxALL, 5);
sizer3->Add(sizer, 0, wxEXPAND|wxALL, 5);
sizer3->Add(button, 0, wxEXPAND|wxALL, 5);
sizer3->Add(cancel, 0, wxEXPAND|wxALL, 5);
SetSizer(sizer3);
SetAutoLayout(true);
Show();
}
BasicGLPane2::~BasicGLPane2()
{
//delete m_context;
}
BEGIN_EVENT_TABLE(BasicGLPane, wxGLCanvas)
EVT_MOTION(BasicGLPane::mouseMoved)
EVT_LEFT_DOWN(BasicGLPane::mouseDown)
EVT_LEFT_UP(BasicGLPane::mouseReleased)
EVT_RIGHT_DOWN(BasicGLPane::rightClick)
EVT_LEAVE_WINDOW(BasicGLPane::mouseLeftWindow)
EVT_SIZE(BasicGLPane::resized)
EVT_KEY_DOWN(BasicGLPane::keyPressed)
EVT_KEY_UP(BasicGLPane::keyReleased)
EVT_MOUSEWHEEL(BasicGLPane::mouseWheelMoved)
EVT_PAINT(BasicGLPane::render)
EVT_CHAR(BasicGLPane::OnChar)
EVT_BUTTON(ID_DELETE,BasicGLPane::DeleteRow )
END_EVENT_TABLE()
// some useful events to use
void BasicGLPane::mouseMoved(wxMouseEvent& event) {}
void BasicGLPane::mouseDown(wxMouseEvent& event) {/*printf("mouseDown\n");*/}
void BasicGLPane::mouseWheelMoved(wxMouseEvent& event) {}
void BasicGLPane::mouseReleased(wxMouseEvent& event) {}
void BasicGLPane::rightClick(wxMouseEvent& event) {}
void BasicGLPane::mouseLeftWindow(wxMouseEvent& event) {}
void BasicGLPane::keyReleased(wxKeyEvent& event) {}
void BasicGLPane::OnChar(wxKeyEvent& event) {}
int InitGL=0;
void BasicGLPane::InitOpenGl()
{
if(InitGL) return;
//
while ( !IsShown() ) {}; // Force the Shown
SetCurrent(*m_context);
#ifdef GLEW_IN
GLenum err = glewInit();
if(err!=GL_NO_ERROR)
{
wxMessageBox(
wxString("GLEW Error: ") +
wxString(glewGetErrorString(err)),
_("OpenGl ERROR"),
wxOK | wxICON_EXCLAMATION
);
}
#endif
InitGL=1;
dotriangles(triangle);
printf("Groups of triangles %ld\n",triangle);
}
BasicGLPane::BasicGLPane(wxFrame* parent, int* args) :
wxGLCanvas(parent, wxID_ANY, args, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
{
m_context = new wxGLContext(this);
// To avoid flashing on MSW
SetBackgroundStyle(wxBG_STYLE_CUSTOM);
memset((char *)&sceneG,0,sizeof(struct Scene));
struct Scene *scene=&sceneG;
trin=NULL;
norm=NULL;
color=NULL;
color=NULL;
angle=50;
// printf("Groups of triangles %ld vender %s\n",triangle,glGetString(GL_VENDOR));
}
void BasicGLPane::DeleteRow( wxCommandEvent& WXUNUSED(ev) )
{
printf("DeleteRow\n");
}
void BasicGLPane::keyPressed(wxKeyEvent& event)
{
wxString key;
long keycode = event.GetKeyCode();
//printf("keycode %ld\n",keycode);
if(keycode == 84){
buildList(&sceneG);
doTestSpeed(&sceneG);
}
}
int BasicGLPane::doTestSpeed(struct Scene *scene)
{
buildList(&sceneG);
double start,end;
long count,n;
double den;
if(!scene)return 1;
count=0;
start=rtime();
for(n=0;n<25;++n){
count++;
scene->Eye.z -= scene->WorldStepSize*0.1;
//doCommands(NewScene);
angle += 2;
render2();
}
for(n=0;n<25;++n){
count++;
scene->Eye.x += scene->WorldStepSize*0.1;
//doCommands(NewScene);
angle += 2;
render2();
}
for(n=0;n<25;++n){
count++;
scene->Eye.z += scene->WorldStepSize*0.1;
//doCommands(NewScene);
angle += 2;
render2();
}
for(n=0;n<25;++n){
count++;
scene->Eye.x -= scene->WorldStepSize*0.1;
//doCommands(NewScene);
angle += 2;
render2();
}
end=rtime();
den=end-start;
if(den <= 0)den=1;
printf("%.2f Seconds %ld Frames %.2f (Frames/sec) %.2f (Millon triangles/sec) xsize %d ysize %d Mode \"%s\" triangles %ld\n",
den,count,((double)count)/(den),((double)count*(scene->nt+scene->nq))/(1.0e6*den),
getWidth(),getHeight(),mode[runMode],trianglemax);
return 0;
}
BasicGLPane::~BasicGLPane()
{
delete m_context;
}
void BasicGLPane::resized(wxSizeEvent& evt)
{
// wxGLCanvas::OnSize(evt);
Refresh();
}
/** Inits the OpenGL viewport for drawing in 3D. */
void BasicGLPane::prepare3DViewport(int topleft_x, int topleft_y, int bottomrigth_x, int bottomrigth_y)
{
glClearColor(0.0f, 0.0f, 0.0f, 1.0f); // Black Background
glClearColor(1.0f, 1.0f, 1.0f, 1.0f); // Black Background
glClearDepth(1.0f); // Depth Buffer Setup
glEnable(GL_DEPTH_TEST); // Enables Depth Testing
glDepthFunc(GL_LEQUAL); // The Type Of Depth Testing To Do
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
glEnable(GL_COLOR_MATERIAL);
glViewport(topleft_x, topleft_y, bottomrigth_x-topleft_x, bottomrigth_y-topleft_y);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
float ratio_w_h = (float)(bottomrigth_x-topleft_x)/(float)(bottomrigth_y-topleft_y);
gluPerspective(45 /*view angle*/, ratio_w_h, 0.1 /*clip close*/, 200 /*clip far*/);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
/** Inits the OpenGL viewport for drawing in 2D. */
void BasicGLPane::prepare2DViewport(int topleft_x, int topleft_y, int bottomrigth_x, int bottomrigth_y)
{
glClearColor(0.0f, 0.0f, 0.0f, 1.0f); // Black Background
glEnable(GL_TEXTURE_2D); // textures
glEnable(GL_COLOR_MATERIAL);
glEnable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glViewport(topleft_x, topleft_y, bottomrigth_x-topleft_x, bottomrigth_y-topleft_y);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(topleft_x, bottomrigth_x, bottomrigth_y, topleft_y);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
int BasicGLPane::getWidth()
{
return GetSize().x;
}
int BasicGLPane::getHeight()
{
return GetSize().y;
}
int mDisplay2(struct Scene *scene)
{
if(!scene)return 1;
if((scene->polyList) && (runMode == CompiliedMode) )
{
glCallList (scene->polyList);
}
else if(runMode == VertexArrayMode)
{
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, &trin[0].x1);
glNormalPointer(GL_FLOAT, 0, &norm[0].n1.x);
glColorPointer(3, GL_FLOAT, 0, &color[0].c1.x);
glDrawArrays(GL_TRIANGLES, 0, trianglemax*3);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
}
else if(runMode == VboMode)
{
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, vboId);
glVertexPointer(3, GL_FLOAT, 0,(void *)(0));
glNormalPointer(GL_FLOAT, 0, (void *)((sizeof(struct Nodes))*trianglemax));
glColorPointer(3, GL_FLOAT, 0, (void *)((sizeof(struct Norm)+sizeof(struct Nodes))*trianglemax));
glDrawArrays(GL_TRIANGLES, 0, trianglemax*3);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
}
else if(runMode == VboMode2)
{
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 3);
glColorPointer(3, GL_FLOAT, 0, 0);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 2);
glNormalPointer(GL_FLOAT, 0, 0);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 1);
glVertexPointer(3, GL_FLOAT, 0, 0);
glDrawElements(GL_TRIANGLES, trianglemax*3, GL_UNSIGNED_INT, faces1);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
}
else
{
long n;
glBegin (GL_TRIANGLES);
for(n=0;n<trianglemax;++n){
glColor3fv(&color[n].c1.x);
glNormal3fv(&norm[n].n1.x);
glVertex3fv(&trin[n].x1);
glColor3fv(&color[n].c2.x);
glNormal3fv(&norm[n].n2.x);
glVertex3fv(&trin[n].x2);
glColor3fv(&color[n].c3.x);
glNormal3fv(&norm[n].n3.x);
glVertex3fv(&trin[n].x3);
}
glEnd();
}
glDisable(GL_COLOR_MATERIAL);
glDisable(GL_LIGHT0);
glDisable(GL_LIGHTING);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glColor3f(0, 0, 0);
return 0;
}
void BasicGLPane::render2( )
{
if(!IsShown()) return;
SetCurrent(*m_context);
//wxPaintDC(this); // only to be used in paint events. use wxClientDC to paint outside the paint event
glClearColor(1.0, 1.0, 1.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
prepare3DViewport(0,0,getWidth(), getHeight());
glLoadIdentity();
glColor4f(0,0,1,1);
glTranslatef(0,0,-0.25);
glRotatef(angle, 0.0f, 1.0f, 0.0f);
glColor4f(1, 0, 0, 1);
mDisplay2(&sceneG);
glFlush();
SwapBuffers();
}
void BasicGLPane::render( wxPaintEvent& evt )
{
render2( );
}
int BasicGLPane::dotriangles(long size)
{
//printf("runMode %d\n",runMode);
trianglemax=size*size*2;
if(trin)free(trin);
if(norm)free(norm);
if(color)free(color);
if(faces1)free(faces1);
trin=NULL;
norm=NULL;
color=NULL;
faces1=NULL;
if((trin=(struct Nodes *)malloc(trianglemax*sizeof(struct Nodes))) == NULL){
printf("Out of memory Requested (%ld)\n",trianglemax*sizeof(struct Nodes));
exit(1);
}
if((norm=(struct Norm *)malloc(trianglemax*sizeof(struct Norm))) == NULL){
printf("Out of memory Requested (%ld)\n",trianglemax*sizeof(struct Norm));
exit(1);
}
if((color=(struct Colors *)malloc(trianglemax*sizeof(struct Colors))) == NULL){
printf("Out of memory Requested (%ld)\n",trianglemax*sizeof(struct Colors));
exit(1);
}
if((faces1=(GLuint *)malloc(trianglemax*sizeof(GLuint)*3)) == NULL){
printf("Out of memory Requested (%ld)\n",trianglemax*sizeof(GLuint)*3);
exit(1);
}
buildtriangles(&sceneG,trin,norm,color,faces1,&trianglemax,size);
buildList(&sceneG);
/* printf("Triangles Created %ld in %ld Seconds\n",trianglemax,t1-start); */
return 0;
}
int buildList(struct Scene *scene)
{
long n;
if (scene->polyList)
glDeleteLists (scene->polyList, 1);
scene->polyList=0;
if(runMode == ImmediateMode)return 0;
if(runMode == VboMode)
{
glGenBuffersARB(1, &vboId);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, vboId);
glBufferDataARB(GL_ARRAY_BUFFER_ARB, (sizeof(struct Colors)+sizeof(struct Norm)+sizeof(struct Nodes))*trianglemax, 0, GL_STATIC_DRAW_ARB);
glBufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0,(sizeof(struct Nodes))*trianglemax, &trin[0].x1); // copy vertices starting from 0 offest
glBufferSubDataARB(GL_ARRAY_BUFFER_ARB,(sizeof(struct Nodes))*trianglemax, (sizeof(struct Norm))*trianglemax, &norm[0].n1.x); // copy normals after vertices
glBufferSubDataARB(GL_ARRAY_BUFFER_ARB,(sizeof(struct Norm)+sizeof(struct Nodes))*trianglemax, (sizeof(struct Norm))*trianglemax, &color[0].c1.x); // copy colours after normals
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
}
else if(runMode == VboMode2)
{
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 1);
glBufferDataARB(GL_ARRAY_BUFFER_ARB,(sizeof(struct Nodes))*trianglemax, &trin[0].x1, GL_STATIC_DRAW);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 2);
glBufferDataARB(GL_ARRAY_BUFFER_ARB, (sizeof(struct Norm))*trianglemax, &norm[0].n1.x, GL_STATIC_DRAW);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 3);
glBufferDataARB(GL_ARRAY_BUFFER_ARB, (sizeof(struct Colors))*trianglemax, &color[0].c1.x, GL_STATIC_DRAW);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
}
else if(runMode == CompiliedMode)
{
scene->polyList = glGenLists (1);
// printf("scene->polyList %d\n",scene->polyList);
glNewList(scene->polyList, GL_COMPILE);
glBegin (GL_TRIANGLES);
for(n=0;n<trianglemax;++n){
glColor3fv(&color[n].c1.x);
glNormal3fv(&norm[n].n1.x);
glVertex3fv(&trin[n].x1);
glColor3fv(&color[n].c2.x);
glNormal3fv(&norm[n].n2.x);
glVertex3fv(&trin[n].x2);
glColor3fv(&color[n].c3.x);
glNormal3fv(&norm[n].n3.x);
glVertex3fv(&trin[n].x3);
}
glEnd();
glEndList ();
}
return 0;
}
int CenterScreen(struct Scene *scene)
{
struct P EyeToTarget;
struct P pScreen;
double thetaHalf;
double xc,yc,zc;
double pi;
if(!scene)return 1;
pi=4.0*atan(1.0);
xc=0.5*(scene->xmin+scene->xmax);
yc=0.5*(scene->ymin+scene->ymax);
zc=0.5*(scene->zmin+scene->zmax);
scene->WorldSize=sqrt( (scene->xmin-scene->xmax)*(scene->xmin-scene->xmax)+
(scene->ymin-scene->ymax)*(scene->ymin-scene->ymax)+
(scene->zmin-scene->zmax)*(scene->zmin-scene->zmax));
scene->WorldStepSize=scene->WorldSize*0.1;
scene->Target.x=xc;
scene->Target.y=yc;
scene->Target.z=zc;
scene->Eye.x=scene->Target.x+1.001;
scene->Eye.y=scene->Target.y+1.002;
scene->Eye.z=scene->Target.z+1.003;
scene->Degrees=30;
thetaHalf=0.5*scene->Degrees*pi/180.;
EyeToTarget=Sub(&scene->Target,&scene->Eye);
EyeToTarget=Norm(&EyeToTarget);
pScreen=Mult(&EyeToTarget,-(0.5*scene->WorldSize/tan(thetaHalf)));
/*
pScreen=Mult(&EyeToTarget,-(scene->WorldSize*0.75));
*/
scene->Eye=Add(&pScreen,&scene->Target);
EyeToTarget=Sub(&scene->Target,&scene->Eye);
scene->nearv=scene->WorldSize/100;
/*
scene->farv=1.5*scene->WorldSize;
*/
scene->farv=Len(&EyeToTarget)+0.5*scene->WorldSize;
scene->Lamp=scene->Eye;
/*
printf("w %f z %f\n",scene->WorldSize*4,scene->farv);
printf("x %f y %f z %f\n",scene->Eye.x,scene->Eye.y,scene->Eye.z);
scene->Eye.x=xc+scene->WorldSize;
scene->Eye.y=yc+scene->WorldSize;
scene->Eye.z=zc+scene->WorldSize;
printf("x %f y %f z %f\n",scene->Eye.x,scene->Eye.y,scene->Eye.z);
*/
return 0;
}
int GetTime(long *Seconds,long *milliseconds)
{
struct timeb t;
if(!Seconds || !milliseconds)return 1;
ftime(&t);
*Seconds=(long)t.time;
*milliseconds=t.millitm;
return 0;
}
double rtime(void)
{
long milliseconds;
long Seconds;
double ret;
GetTime(&Seconds,&milliseconds);
ret=(double)Seconds+(double)milliseconds/1000.;
return ret;
}
struct P Norm(struct P *p1)
{
struct P p;
double sum;
sum=1./pow(p1->x*p1->x+p1->y*p1->y+p1->z*p1->z,.5);
p.x=(p1->x*sum);
p.y=(p1->y*sum);
p.z=(p1->z*sum);
return p;
}
struct P CrossN(struct P *v1,struct P *v2)
{
static struct P Zero;
struct P Vcross;
double Length;
Vcross.x = v1->y*v2->z-v2->y*v1->z;
Vcross.y = -(v1->x*v2->z-v2->x*v1->z);
Vcross.z = v1->x*v2->y-v2->x*v1->y;
Length=Len(&Vcross);
if(Length <= 0.)return Zero;
Vcross.x/=Length;
Vcross.y/=Length;
Vcross.z/=Length;
return Vcross;
}
struct P Sub(struct P *p1,struct P *p2)
{
struct P psub;