int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitWindowSize(512, 512);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
glutCreateWindow("AGV example");
glutVisibilityFunc(visible);
if (Rotating)
glutIdleFunc(rotatethering);
/*
* let AGV know if it can mess with the idle function (if we've
* just installed an idle function, we tell AGV it can't touch it)
*/
agvInit(!Rotating);
/*
* agvInit() installs mouse, motion, and keyboard handles, but
* we don't care for this example cause we only use right button menu
*/
agvMakeAxesList(AXES); /* create AGV axes */
myGLInit();
MakeDisplayLists();
MenuInit();
glutDisplayFunc(display);
glutMainLoop();
return 0; /* ANSI C requires main to return int. */
}
int GLinitialize()
{
glViewport(rRatioRect.left, // init viewport by ratio rect
iResY-(rRatioRect.top+rRatioRect.bottom),
rRatioRect.right,
rRatioRect.bottom);
glScissor(0, 0, iResX, iResY); // init clipping (fullscreen)
glEnable(GL_SCISSOR_TEST);
#ifndef OWNSCALE
glMatrixMode(GL_TEXTURE); // init psx tex sow and tow if not "ownscale"
glLoadIdentity();
glScalef(1.0f/255.99f,1.0f/255.99f,1.0f); // geforce precision hack
#endif
glMatrixMode(GL_PROJECTION); // init projection with psx resolution
glLoadIdentity();
glOrtho(0,PSXDisplay.DisplayMode.x,
PSXDisplay.DisplayMode.y, 0, -1, 1);
if(iZBufferDepth) // zbuffer?
{
uiBufferBits=GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT;
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_ALWAYS);
iDepthFunc=1;
}
else // no zbuffer?
{
uiBufferBits=GL_COLOR_BUFFER_BIT;
glDisable(GL_DEPTH_TEST);
}
glClearColor(0.0f, 0.0f, 0.0f, 0.0f); // first buffer clear
glClear(uiBufferBits);
if(bUseLines) // funny lines
{
glPolygonMode(GL_FRONT, GL_LINE);
glPolygonMode(GL_BACK, GL_LINE);
}
else // or the real filled thing
{
glPolygonMode(GL_FRONT, GL_FILL);
glPolygonMode(GL_BACK, GL_FILL);
}
MakeDisplayLists(); // lists for menu/opaque
GetExtInfos(); // get ext infos
SetExtGLFuncs(); // init all kind of stuff (tex function pointers)
glEnable(GL_ALPHA_TEST); // wanna alpha test
if(!bUseAntiAlias) // no anti-alias (default)
{
glDisable(GL_LINE_SMOOTH);
glDisable(GL_POLYGON_SMOOTH);
glDisable(GL_POINT_SMOOTH);
}
else // wanna try it? glitches galore...
{
glHint(GL_PERSPECTIVE_CORRECTION_HINT,GL_NICEST);
glEnable(GL_LINE_SMOOTH);
glEnable(GL_POLYGON_SMOOTH);
glEnable(GL_POINT_SMOOTH);
glHint(GL_LINE_SMOOTH_HINT,GL_NICEST);
glHint(GL_POINT_SMOOTH_HINT,GL_NICEST);
glHint(GL_POLYGON_SMOOTH_HINT,GL_NICEST);
}
ubGloAlpha=127; // init some drawing vars
ubGloColAlpha=127;
TWin.UScaleFactor = 1;
TWin.VScaleFactor = 1;
bDrawMultiPass=FALSE;
bTexEnabled=FALSE;
bUsingTWin=FALSE;
if(bDrawDither) glEnable(GL_DITHER); // dither mode
else glDisable(GL_DITHER);
glDisable(GL_FOG); // turn all (currently) unused modes off
glDisable(GL_LIGHTING);
glDisable(GL_LOGIC_OP);
glDisable(GL_STENCIL_TEST);
glDisable(GL_TEXTURE_1D);
glDisable(GL_TEXTURE_2D);
glDisable(GL_CULL_FACE);
glPixelTransferi(GL_RED_SCALE, 1); // to be sure:
glPixelTransferi(GL_RED_BIAS, 0); // init more OGL vals
glPixelTransferi(GL_GREEN_SCALE, 1);
glPixelTransferi(GL_GREEN_BIAS, 0);
glPixelTransferi(GL_BLUE_SCALE, 1);
glPixelTransferi(GL_BLUE_BIAS, 0);
glPixelTransferi(GL_ALPHA_SCALE, 1);
glPixelTransferi(GL_ALPHA_BIAS, 0);
printf(glGetString(GL_VENDOR)); // linux: tell user what is getting used
printf("\n");
printf(glGetString(GL_RENDERER));
printf("\n");
glFlush(); // we are done...
glFinish();
CreateScanLines(); // setup scanline stuff (if wanted)
CheckTextureMemory(); // check available tex memory
if(bKeepRatio) SetAspectRatio(); // set ratio
if(iShowFPS) // user wants FPS display on startup?
{
ulKeybits|=KEY_SHOWFPS; // -> ok, turn display on
szDispBuf[0]=0;
BuildDispMenu(0);
}
bIsFirstFrame = FALSE; // we have survived the first frame :)
return 0;
}