//
// This function is called when the window needs redrawing.
//
static void Display(void)
{
int i;
GLdouble p[16];
GLdouble m[16];
// Select correct buffer for this context.
glDrawBuffer(GL_BACK);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear the buffers for new frame.
arglDispImage(gARTImage, &gARTCparam, 1.0, gArglSettings); // zoom = 1.0.
arVideoCapNext();
gARTImage = NULL; // Image data is no longer valid after calling arVideoCapNext().
if (gPatt_found) {
// Projection transformation.
arglCameraFrustumRH(&gARTCparam, VIEW_DISTANCE_MIN, VIEW_DISTANCE_MAX, p);
glMatrixMode(GL_PROJECTION);
glLoadMatrixd(p);
glMatrixMode(GL_MODELVIEW);
// Viewing transformation.
glLoadIdentity();
// Lighting and geometry that moves with the camera should go here.
// (I.e. must be specified before viewing transformations.)
//none
// All other lighting and geometry goes here.
// Calculate the camera position for each object and draw it.
for (i = 0; i < gObjectDataCount; i++) {
if ((gObjectData[i].visible != 0) && (gObjectData[i].vrml_id >= 0)) {
//fprintf(stderr, "About to draw object %i\n", i);
arglCameraViewRH(gObjectData[i].trans, m, VIEW_SCALEFACTOR_4);
glLoadMatrixd(m);
arVrmlDraw(gObjectData[i].vrml_id);
}
}
} // gPatt_found
// Any 2D overlays go here.
//none
glutSwapBuffers();
}
int main(int argc, char** argv)
{
int i;
char glutGamemode[32];
const char *cparam_name =
"Data/camera_para.dat";
#ifdef _WIN32
char *vconf = "Data\\WDM_camera_flipV.xml";
#else
char *vconf = "";
#endif
char objectDataFilename[] = "Data/object_data_vrml";
// ----------------------------------------------------------------------------
// Library inits.
//
glutInit(&argc, argv);
// ----------------------------------------------------------------------------
// Hardware setup.
//
if (!setupCamera(cparam_name, vconf, &gARTCparam)) {
fprintf(stderr, "main(): Unable to set up AR camera.\n");
exit(-1);
}
#ifdef _WIN32
CoInitialize(NULL);
#endif
// ----------------------------------------------------------------------------
// Library setup.
//
// Set up GL context(s) for OpenGL to draw into.
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH);
if (!prefWindowed) {
if (prefRefresh) sprintf(glutGamemode, "%ix%i:%i@%i", prefWidth, prefHeight, prefDepth, prefRefresh);
else sprintf(glutGamemode, "%ix%i:%i", prefWidth, prefHeight, prefDepth);
glutGameModeString(glutGamemode);
glutEnterGameMode();
} else {
glutInitWindowSize(gARTCparam.xsize, gARTCparam.ysize);
glutCreateWindow(argv[0]);
}
// Setup argl library for current context.
if ((gArglSettings = arglSetupForCurrentContext()) == NULL) {
fprintf(stderr, "main(): arglSetupForCurrentContext() returned error.\n");
exit(-1);
}
debugReportMode();
arUtilTimerReset();
if (!setupMarkersObjects(objectDataFilename)) {
fprintf(stderr, "main(): Unable to set up AR objects and markers.\n");
Quit();
}
// Test render all the VRML objects.
fprintf(stdout, "Pre-rendering the VRML objects...");
fflush(stdout);
glEnable(GL_TEXTURE_2D);
for (i = 0; i < gObjectDataCount; i++) {
arVrmlDraw(gObjectData[i].vrml_id);
}
glDisable(GL_TEXTURE_2D);
fprintf(stdout, " done\n");
// Register GLUT event-handling callbacks.
// NB: Idle() is registered by Visibility.
glutDisplayFunc(Display);
glutReshapeFunc(Reshape);
glutVisibilityFunc(Visibility);
glutKeyboardFunc(Keyboard);
glutMainLoop();
return (0);
}
int main(int argc, char** argv)
{
int i;
char glutGamemode[32];
char cparam_name[] = "Data/camera_para.dat";
char vconf[] = "";
char objectDataFilename[] = "Data/object_data_vrml";
//
// Library inits.
//
glutInit(&argc, argv);
//
// Video setup.
//
if (!setupCamera(cparam_name, vconf, &gCparamLT, &gARHandle, &gAR3DHandle)) {
ARLOGe("main(): Unable to set up AR camera.\n");
exit(-1);
}
#ifdef _WIN32
CoInitialize(NULL);
#endif
//
// Graphics setup.
//
// Set up GL context(s) for OpenGL to draw into.
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH);
if (!windowed) {
if (windowRefresh) sprintf(glutGamemode, "%ix%i:%i@%i", windowWidth, windowHeight, windowDepth, windowRefresh);
else sprintf(glutGamemode, "%ix%i:%i", windowWidth, windowHeight, windowDepth);
glutGameModeString(glutGamemode);
glutEnterGameMode();
} else {
glutInitWindowSize(windowWidth, windowHeight);
glutCreateWindow(argv[0]);
}
// Setup ARgsub_lite library for current OpenGL context.
if ((gArglSettings = arglSetupForCurrentContext(&(gCparamLT->param), arVideoGetPixelFormat())) == NULL) {
ARLOGe("main(): arglSetupForCurrentContext() returned error.\n");
cleanup();
exit(-1);
}
arglSetupDebugMode(gArglSettings, gARHandle);
arUtilTimerReset();
if (!setupMarkersObjects(objectDataFilename, &gObjectData, &gObjectDataCount, gARHandle)) {
ARLOGe("main(): Unable to set up AR objects and markers.\n");
cleanup();
exit(-1);
}
// Test render all the VRML objects.
ARLOGi("Pre-rendering the VRML objects...\n");
glEnable(GL_TEXTURE_2D);
for (i = 0; i < gObjectDataCount; i++) {
arVrmlDraw(gObjectData[i].vrml_id);
}
glDisable(GL_TEXTURE_2D);
ARLOGi(" done\n");
// Register GLUT event-handling callbacks.
// NB: mainLoop() is registered by Visibility.
glutDisplayFunc(Display);
glutReshapeFunc(Reshape);
glutVisibilityFunc(Visibility);
glutKeyboardFunc(Keyboard);
glutMainLoop();
return (0);
}
//
// This function is called when the window needs redrawing.
//
static void Display(void)
{
int i;
GLdouble p[16];
GLdouble m[16];
// Select correct buffer for this context.
glDrawBuffer(GL_BACK);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear the buffers for new frame.
arglDispImage(gARTImage, &(gCparamLT->param), 1.0, gArglSettings); // zoom = 1.0.
gARTImage = NULL; // Invalidate image data.
// Projection transformation.
arglCameraFrustumRH(&(gCparamLT->param), VIEW_DISTANCE_MIN, VIEW_DISTANCE_MAX, p);
glMatrixMode(GL_PROJECTION);
glLoadMatrixd(p);
glMatrixMode(GL_MODELVIEW);
glEnable(GL_DEPTH_TEST);
// Viewing transformation.
glLoadIdentity();
// Lighting and geometry that moves with the camera should go here.
// (I.e. must be specified before viewing transformations.)
//none
for (i = 0; i < gObjectDataCount; i++) {
if ((gObjectData[i].visible != 0) && (gObjectData[i].vrml_id >= 0)) {
// Calculate the camera position for the object and draw it.
// Replace VIEW_SCALEFACTOR with 1.0 to make one drawing unit equal to 1.0 ARToolKit units (usually millimeters).
arglCameraViewRH(gObjectData[i].trans, m, VIEW_SCALEFACTOR);
glLoadMatrixd(m);
// All lighting and geometry to be drawn relative to the marker goes here.
//ARLOGe("About to draw object %i\n", i);
arVrmlDraw(gObjectData[i].vrml_id);
}
}
// Any 2D overlays go here.
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, (GLdouble)windowWidth, 0, (GLdouble)windowHeight, -1.0, 1.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glDisable(GL_LIGHTING);
glDisable(GL_DEPTH_TEST);
//
// Draw help text and mode.
//
if (gShowMode) {
printMode();
}
if (gShowHelp) {
if (gShowHelp == 1) {
printHelpKeys();
}
}
glutSwapBuffers();
}
