#define WIN_W 1024
#define WIN_H 768
+// The number of polygon-offset "units" to place between layers. In
+// principle, one is supposed to be enough. In practice, I find that
+// my hardware/driver requires many more.
+#define POFF_UNITS 40
+
#if defined( NONE ) && defined( _MSC_VER )
# pragma message( "A sloppy coder has defined NONE as a macro!!!" )
# undef NONE
return false;
if(globals->get_viewmgr()->get_current() != 0)
return false;
- if(globals->get_current_view()->getHeadingOffset_deg() * SGD_DEGREES_TO_RADIANS != 0 &&
- !fgGetBool("/sim/virtual-cockpit"))
+ if(globals->get_current_view()->getHeadingOffset_deg() * SGD_DEGREES_TO_RADIANS != 0)
return false;
return true;
}
* Update the panel.
*/
void
-FGPanel::update (int dt)
+FGPanel::update (double dt)
{
// TODO: cache the nodes
_visibility = fgGetBool("/sim/panel/visibility");
double x_offset = _x_offset;
double y_offset = _y_offset;
+#if 0
if (_jitter != 0.0) {
double a_x_pilot = current_aircraft.fdm_state->get_A_X_pilot();
double a_y_pilot = current_aircraft.fdm_state->get_A_Y_pilot();
x_offset += x_adjust;
y_offset += y_adjust;
}
+#endif
- if(fgGetBool("/sim/virtual-cockpit")) {
- setupVirtualCockpit();
- } else {
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glLoadIdentity();
- gluOrtho2D(winx, winx + winw, winy, winy + winh); /* right side up */
- // gluOrtho2D(winx + winw, winx, winy + winh, winy); /* up side down */
-
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
- glLoadIdentity();
-
- glTranslated(x_offset, y_offset, 0);
- }
+ glMatrixMode(GL_PROJECTION);
+ glPushMatrix();
+ glLoadIdentity();
+ gluOrtho2D(winx, winx + winw, winy, winy + winh); /* right side up */
+ // gluOrtho2D(winx + winw, winx, winy + winh, winy); /* up side down */
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+ glLoadIdentity();
+
+ glTranslated(x_offset, y_offset, 0);
+
+ draw();
+
+ glMatrixMode(GL_PROJECTION);
+ glPopMatrix();
+ glMatrixMode(GL_MODELVIEW);
+ glPopMatrix();
+
+ ssgForceBasicState();
+ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+}
+
+void
+FGPanel::draw()
+{
+ // In 3D mode, it's possible that we are being drawn exactly on top
+ // of an existing polygon. Use an offset to prevent z-fighting. In
+ // 2D mode, this is a no-op.
+ glEnable(GL_POLYGON_OFFSET_FILL);
+ glPolygonOffset(0, -POFF_UNITS);
+
// Draw the background
glEnable(GL_TEXTURE_2D);
glDisable(GL_LIGHTING);
// glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glBegin(GL_POLYGON);
- glTexCoord2f(0.0, 0.0); glVertex3f(WIN_X, WIN_Y, 0);
- glTexCoord2f(1.0, 0.0); glVertex3f(WIN_X + _width, WIN_Y, 0);
- glTexCoord2f(1.0, 1.0); glVertex3f(WIN_X + _width, WIN_Y + _height, 0);
- glTexCoord2f(0.0, 1.0); glVertex3f(WIN_X, WIN_Y + _height, 0);
+ glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X, WIN_Y);
+ glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + _width, WIN_Y);
+ glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + _width, WIN_Y + _height);
+ glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X, WIN_Y + _height);
glEnd();
} else {
for (int i = 0; i < 4; i ++) {
glBindTexture(GL_TEXTURE_2D, _mbg[i*2]->getHandle());
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glBegin(GL_POLYGON);
- glTexCoord2f(0.0, 0.0); glVertex3f(WIN_X + (_width/4) * i, WIN_Y + (_height/2), 0);
- glTexCoord2f(1.0, 0.0); glVertex3f(WIN_X + (_width/4) * (i+1), WIN_Y + (_height/2), 0);
- glTexCoord2f(1.0, 1.0); glVertex3f(WIN_X + (_width/4) * (i+1), WIN_Y + _height, 0);
- glTexCoord2f(0.0, 1.0); glVertex3f(WIN_X + (_width/4) * i, WIN_Y + _height, 0);
+ glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + (_height/2));
+ glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + (_height/2));
+ glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + _height);
+ glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + _height);
glEnd();
// bottom row of textures...(2,4,6,8)
glBindTexture(GL_TEXTURE_2D, _mbg[(i*2)+1]->getHandle());
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glBegin(GL_POLYGON);
- glTexCoord2f(0.0, 0.0); glVertex3f(WIN_X + (_width/4) * i, WIN_Y, 0);
- glTexCoord2f(1.0, 0.0); glVertex3f(WIN_X + (_width/4) * (i+1), WIN_Y, 0);
- glTexCoord2f(1.0, 1.0); glVertex3f(WIN_X + (_width/4) * (i+1), WIN_Y + (_height/2), 0);
- glTexCoord2f(0.0, 1.0); glVertex3f(WIN_X + (_width/4) * i, WIN_Y + (_height/2), 0);
+ glTexCoord2f(0.0, 0.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y);
+ glTexCoord2f(1.0, 0.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y);
+ glTexCoord2f(1.0, 1.0); glVertex2f(WIN_X + (_width/4) * (i+1), WIN_Y + (_height/2));
+ glTexCoord2f(0.0, 1.0); glVertex2f(WIN_X + (_width/4) * i, WIN_Y + (_height/2));
glEnd();
}
-
}
- // Draw the instruments.
+ // Draw the instruments.
instrument_list_type::const_iterator current = _instruments.begin();
instrument_list_type::const_iterator end = _instruments.end();
glPopMatrix();
}
- if(fgGetBool("/sim/virtual-cockpit")) {
- cleanupVirtualCockpit();
- } else {
- glMatrixMode(GL_PROJECTION);
- glPopMatrix();
- glMatrixMode(GL_MODELVIEW);
- glPopMatrix();
- }
-
- ssgForceBasicState();
- glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-}
-
-void
-FGPanel::setupVirtualCockpit()
-{
- int i;
- FGViewer* view = globals->get_current_view();
-
- // Generate corners for the panel quad. Put the top edge of the
- // panel 1m in and 6 degrees down from the forward direction, and
- // make the whole thing 60 degrees wide. In principle, these
- // should be settable per-panel, so that you can have lots of
- // panel objects plastered about the cockpit in realistic
- // positions and orientations.
- float a[3], b[3], c[3];
- float pw = tan(30*SGD_DEGREES_TO_RADIANS);
- float ph = 2 * pw * (float)_height/(float)_width;
- float ptop = -tan(6*SGD_DEGREES_TO_RADIANS);
- a[0] = -pw; a[1] = ptop-ph; a[2] = -1; // bottom left
- b[0] = pw; b[1] = ptop-ph; b[2] = -1; // bottom right
- c[0] = -pw; c[1] = ptop; c[2] = -1; // top left
-
- // A standard projection, in meters, with especially close clip
- // planes.
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glLoadIdentity();
- gluPerspective(view->get_v_fov(), 1/view->get_aspect_ratio(),
- 0.01, 100);
-
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
- glLoadIdentity();
-
- // Generate a "look at" matrix using OpenGL (!) coordinate
- // conventions.
- float lookat[3];
- float pitch = view->getPitchOffset_deg() * SGD_DEGREES_TO_RADIANS;
- float rot = view->getHeadingOffset_deg() * SGD_DEGREES_TO_RADIANS;
- lookat[0] = -sin(rot);
- lookat[1] = sin(pitch) / cos(pitch);
- lookat[2] = -cos(rot);
- if(fabs(lookat[1]) > 9999) lookat[1] = 9999; // FPU sanity
- gluLookAt(0, 0, 0, lookat[0], lookat[1], lookat[2], 0, 1, 0);
-
- // Translate the origin to the location of the panel quad
- glTranslatef(a[0], a[1], a[2]);
-
- // Generate a matrix to translate unit square coordinates from the
- // panel to real world coordinates. Use a transposed basis for
- // the panel quad. Note: this matrix is relatively expensive to
- // compute, and is invariant. Consider precomputing and storing
- // it. Also, consider using the plib vector math routines, so the
- // reuse junkies don't yell at me. (Fine, I hard-coded a cross
- // product. Just shoot me and be done with it.)
- float u[3], v[3], w[3], m[16];
- for(i=0; i<3; i++) u[i] = b[i] - a[i]; // U = B - A
- for(i=0; i<3; i++) v[i] = c[i] - a[i]; // V = C - A
- w[0] = u[1]*v[2] - v[1]*u[2]; // W = U x V
- w[1] = u[2]*v[0] - v[2]*u[0];
- w[2] = u[0]*v[1] - v[0]*u[1];
-
- m[0] = u[0]; m[4] = v[0]; m[8] = w[0]; m[12] = 0; // |Ux Vx Wx|
- m[1] = u[1]; m[5] = v[1]; m[9] = w[1]; m[13] = 0; // m = |Uy Vy Wy|
- m[2] = u[2]; m[6] = v[2]; m[10] = w[2]; m[14] = 0; // |Uz Vz Wz|
- m[3] = 0; m[7] = 0; m[11] = 0; m[15] = 1;
- glMultMatrixf(m);
-
- // Finally, a scaling factor to map the panel's width and height
- // to the unit square.
- glScalef(1./_width, 1./_height, 1);
-
- // Now, turn off the Z buffer. The panel code doesn't need
- // it, and we're using different clip planes anyway (meaning we
- // can't share it without glDepthRange() hackery or much
- // framebuffer bandwidth wasteage)
- glDisable(GL_DEPTH_TEST);
-}
-
-void
-FGPanel::cleanupVirtualCockpit()
-{
- glMatrixMode(GL_PROJECTION);
- glPopMatrix();
- glMatrixMode(GL_MODELVIEW);
- glPopMatrix();
- glEnable(GL_DEPTH_TEST);
+ glDisable(GL_POLYGON_OFFSET_FILL);
}
-
/**
* Set the panel's visibility.
*/
_y_offset = offset;
}
-
/**
* Perform a mouse action.
*/
if (updown == 1) {
_mouseDown = false;
_mouseInstrument = 0;
- return true;
+ return false;
}
// Scale for the real window size.
_mouseX = x - ix;
_mouseY = y - iy;
// Always do the action once.
- _mouseInstrument->doMouseAction(_mouseButton, _mouseX, _mouseY);
- return true;
+ return _mouseInstrument->doMouseAction(_mouseButton, _mouseX, _mouseY);
}
}
return false;
void
FGLayeredInstrument::draw ()
{
- if (test()) {
- for (int i = 0; i < (int)_layers.size(); i++) {
- glPushMatrix();
- if(!fgGetBool("/sim/virtual-cockpit"))
- glTranslatef(0.0, 0.0, (i / 100.0) + 0.1);
- _layers[i]->draw();
- glPopMatrix();
- }
+ if (!test())
+ return;
+
+ for (int i = 0; i < (int)_layers.size(); i++) {
+ glPushMatrix();
+ glPolygonOffset(-1, -POFF_UNITS*(i+2));
+ _layers[i]->draw();
+ glPopMatrix();
}
}
FGTextLayer::draw ()
{
if (test()) {
- glPushMatrix();
glColor4fv(_color);
transform();
if ( _font_name == "led" ) {
text_renderer.start3f(0, 0, 0);
_now.stamp();
- if (_now - _then > 100000) {
+ long diff = _now - _then;
+
+ if (diff > 100000 || diff < 0 ) {
+ // ( diff < 0 ) is a sanity check and indicates our time stamp
+ // difference math probably overflowed. We can handle a max
+ // difference of 35.8 minutes since the returned value is in
+ // usec. So if the panel is left off longer than that we can
+ // over flow the math with it is turned back on. This (diff <
+ // 0) catches that situation, get's us out of trouble, and
+ // back on track.
recalc_value();
_then = _now;
}
+
+ // Something is goofy. The code in this file renders only CCW
+ // polygons, and I have verified that the font code in plib
+ // renders only CCW trianbles. Yet they come out backwards.
+ // Something around here or in plib is either changing the winding
+ // order or (more likely) pushing a left-handed matrix onto the
+ // stack. But I can't find it; get out the chainsaw...
+ glFrontFace(GL_CW);
text_renderer.puts((char *)(_value.c_str()));
+ glFrontFace(GL_CCW);
text_renderer.end();
glColor4f(1.0, 1.0, 1.0, 1.0); // FIXME
- glPopMatrix();
}
}
FGTextLayer::Chunk::getValue () const
{
if (test()) {
+ _buf[0] = '\0';
switch (_type) {
case TEXT:
sprintf(_buf, _fmt.c_str(), _text.c_str());
projects / flightgear.git / blobdiff