void Context::draw(HDC hdc) {
// DEBUG
// sm->bDebug = true;
clock_t t = clock();
float elapsed = static_cast<float>(t - timeT) / CLOCKS_PER_SEC;
++frameCount;
if (elapsed > OVERLAY_FPS_INTERVAL) {
OverlayMsg om;
om.omh.uiMagic = OVERLAY_MAGIC_NUMBER;
om.omh.uiType = OVERLAY_MSGTYPE_FPS;
om.omh.iLength = sizeof(OverlayMsgFps);
om.omf.fps = frameCount / elapsed;
sendMessage(om);
frameCount = 0;
timeT = t;
}
unsigned int width, height;
width = oGetDeviceCaps(hdc, HORZRES);
height = oGetDeviceCaps(hdc, VERTRES);
HWND hwnd = WindowFromDC(hdc);
if (hwnd) {
RECT r;
if (GetClientRect(hwnd, &r)) {
width = r.right - r.left;
height = r.bottom - r.top;
}
}
ods("OpenGL: DrawStart: Screen is %d x %d", width, height);
checkMessage(width, height);
oglViewport(0, 0, width, height);
oglMatrixMode(GL_PROJECTION);
oglLoadIdentity();
oglOrtho(0, width, height, 0, -100.0, 100.0);
oglMatrixMode(GL_MODELVIEW);
oglBindTexture(GL_TEXTURE_2D, texture);
oglPushMatrix();
oglLoadIdentity();
float w = static_cast<float>(uiWidth);
float h = static_cast<float>(uiHeight);
float left = static_cast<float>(uiLeft);
float top = static_cast<float>(uiTop);
float right = static_cast<float>(uiRight);
float bottom = static_cast<float>(uiBottom);
float xm = (left) / w;
float ym = (top) / h;
float xmx = (right) / w;
float ymx = (bottom) / h;
oglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
oglBegin(GL_QUADS);
oglTexCoord2f(xm, ymx);
oglVertex2f(left, bottom);
oglTexCoord2f(xm, ym);
oglVertex2f(left, top);
oglTexCoord2f(xmx, ym);
oglVertex2f(right, top);
oglTexCoord2f(xmx, ymx);
oglVertex2f(right, bottom);
oglEnd();
oglPopMatrix();
}
int main(void)
{
int height=480,width=640;
bool fullscreen=false,freeze=false,up=false,close=false;
double camangle=0,camangle2=0,var_r=0;
SDL_Init( SDL_INIT_VIDEO );
SDL_WM_SetCaption( "Test 2 - Clipping, Graphics Made By Pawan Harish", NULL );
int nFlags = SDL_OPENGL | SDL_GL_DOUBLEBUFFER | SDL_HWPALETTE | SDL_HWSURFACE | SDL_HWACCEL;
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER,1);
SDL_Surface *pSDLSurface = SDL_SetVideoMode(width,height,16, nFlags );
oglViewport(width/4, height/4, width/2, height/2);
glViewport(width/4, height/4, width/2, height/2);
glMatrixMode( GL_PROJECTION );
glLoadIdentity();
gluOrtho2D ( width/4, width/2, width/4, width/2 );
glMatrixMode( GL_MODELVIEW );
glLoadIdentity();
GLfloat x = (GLfloat)width / height;
double cx=20,cy=150,cz=350;
double r=sqrt(pow(cx,2)+pow(cz,2)+pow(cz,2));
double th=double(atan(double(cy)/double(r))*180)/double(PI);
double phi=double(atan(double(cx)/double(-cz))*180)/double(PI);
oglMLoadIdentity();
oglVLoadIdentity();
oglPLoadIdentity();
bool Done = false;
SDL_Event Event;
while(!Done)
{
SDL_PollEvent(&Event);
switch(Event.type)
{
case SDL_QUIT:
Done=true;
break;
case SDL_KEYDOWN:
if(Event.key.keysym.sym==SDLK_ESCAPE)
Done=true;
else
if(Event.key.keysym.sym=='s'&&!freeze)
{
if(!fullscreen)
{
pSDLSurface=SDL_SetVideoMode(width,height,16, nFlags|SDL_FULLSCREEN);
fullscreen=true;
}
else
{
pSDLSurface=SDL_SetVideoMode(width,height,16, nFlags);
fullscreen=false;
}
}
else
if(Event.key.keysym.sym=='f')freeze=true;
else
if(Event.key.keysym.sym=='r')freeze=false;
break;
}
if(!freeze)
{
oglClear(0,0,0);
//My drawings
camangle+=2;
if(camangle>360)camangle=0;
if(up)camangle2+=0.25;
else
camangle2-=0.25;
if(camangle2>=30)up=false;
if(camangle2<=-30)up=true;
if(close)var_r+=2;
else
var_r-=2;
if(var_r>=200)close=false;
if(var_r<=-200)close=true;
oglVLoadIdentity();
// oglOCamera(-x, x, -1.0, 1.0, 4.0, 2000.0);
//oglOCamera(-60, 130, -60, 130, -60, 130);
oglPCamera(45,x,60,130);
oglVTranslate(0,0,-r+var_r);
oglVRotate(-camangle2+th,1);
oglVRotate(-camangle+phi,2);
drawplane();
oglMPushMatrix();
oglMLoadIdentity();
oglMTranslate(0,0,-50);
DrawHome();
oglMPopMatrix();
oglShow(); //show everything made up till now in IGL.
SDL_GL_SwapBuffers();
}
}
SDL_Quit();
return 0;
}
