// init ... open a window and set initial default values
int OpenGLDisplayDevice::init(int argc, char **argv, VMDApp *app, int *size, int *loc) {
vmdapp = app; // save VMDApp handle for use by drag-and-drop handlers
// open the window
if (open_window(name, size, loc, argc, argv) != 0) return FALSE;
if (!have_window) return FALSE;
// get screen size
// XXX There's no Win32 API to get the full multi-monitor desktop,
// so this code doesn't correctly handle multi-monitor systems yet.
// To correctly handle multiple monitors, we'd have to
// walk the device tree, take into account monitor layout/positioning,
// and compute the desktop dimensions from that. Since these values
// are currently only used by do_reposition_window() method, we can
// live with primary-monitor values for the time being.
screenX = GetSystemMetrics(SM_CXSCREEN);
screenY = GetSystemMetrics(SM_CYSCREEN);
// set flags for the capabilities of this display
ext->hasmultisample = FALSE; // no code for this extension yet
ext->nummultisamples = 0;
aaAvailable = FALSE;
// set default settings
if (ext->hasmultisample) {
aa_on(); // enable fast multisample based antialiasing by default
// other antialiasing techniques are slow, so only multisample
// makes sense to enable by default.
}
cueingAvailable = TRUE;
cueing_on(); // leave depth cueing on by default, despite the speed hit.
cullingAvailable = TRUE;
culling_off();
set_sphere_mode(sphereMode);
set_sphere_res(sphereRes);
set_line_width(lineWidth);
set_line_style(lineStyle);
// reshape and clear the display, which initializes some other variables
reshape();
normal();
clear();
update();
// successfully created window
return TRUE;
}
int OpenGLPbufferDisplayDevice::init(int argc, char **argv, VMDApp *app, int *size, int *loc) {
vmdapp = app; // save VMDApp handle for use by drag-and-drop handlers
// and GPU memory management routines
// open the window
glxsrv.windowID = open_window(name, size, loc, argc, argv);
if (!have_window) return FALSE;
// set flags for the capabilities of this display
// whether we can do antialiasing or not.
if (ext->hasmultisample)
aaAvailable = TRUE; // we use multisampling over other methods
else
aaAvailable = FALSE; // no non-multisample implementation yet
// set default settings
if (ext->hasmultisample) {
aa_on(); // enable fast multisample based antialiasing by default
// other antialiasing techniques are slow, so only multisample
// makes sense to enable by default.
}
cueingAvailable = TRUE;
cueing_on(); // leave depth cueing on by default, despite the speed hit.
cullingAvailable = TRUE;
culling_off();
set_sphere_mode(sphereMode);
set_sphere_res(sphereRes);
set_line_width(lineWidth);
set_line_style(lineStyle);
// reshape and clear the display, which initializes some other variables
reshape();
normal();
clear();
update();
// We have a window, return success.
return TRUE;
}
// constructor ... open a window and set initial default values
FltkOpenGLDisplayDevice::FltkOpenGLDisplayDevice(int argc, char **argv,
VMDApp *vmdapp_p, int *size, int *loc)
: OpenGLRenderer((char *) "VMD " VMDVERSION " OpenGL Display") {
vmdapp = vmdapp_p; // save VMDApp handle for use by drag-and-drop handlers,
// and GPU memory management routines
// set up data possible before opening window
stereoNames = glStereoNameStr;
stereoModes = OPENGL_STEREO_MODES;
// GLSL is only available on MacOS X 10.4 and later.
renderNames = glRenderNameStr;
renderModes = OPENGL_RENDER_MODES;
cacheNames = glCacheNameStr;
cacheModes = OPENGL_CACHE_MODES;
// open the window
int SX = 100, SY = 100, W, H;
W = size[0];
H = size[1];
if (loc) {
SX = loc[0];
SY = loc[1];
}
window = new myglwindow(SX, SY, W, H, name, this, vmdapp_p);
ext->hasstereo = FALSE; // stereo is off initially
ext->stereodrawforced = FALSE; // stereo not forced initially
ext->hasmultisample = FALSE; // multisample is off initially
int rc=0;
// FLTK stereo support only started working for MacOS X at around version 1.1.7
#if (FL_MAJOR_VERSION >= 1) && (((FL_MINOR_VERSION >= 1) && (FL_PATCH_VERSION >= 7)) || ((FL_MINOR_VERSION >= 1) && (FL_PATCH_VERSION >= 7)))
// find an appropriate visual and colormap ...
if (getenv("VMDPREFERSTEREO") != NULL) {
// Stereo limps along with FLTK 1.1.7 on MacOS X
rc = window->mode(FL_RGB8 | FL_DOUBLE | FL_STENCIL | FL_STEREO);
ext->hasstereo = TRUE;
#if defined(__APPLE__)
ext->stereodrawforced = TRUE; // forced draw in stereo all the time when on
#endif
// FLTK multisample antialiasing still doesn't actually work in
// MacOS X as of FLTK 1.1.10...
#if !defined(__APPLE__)
// } else if (getenv("VMDPREFERMULTISAMPLE") != NULL) {
} else if (rc != 0) {
rc = window->mode(FL_RGB8 | FL_DOUBLE | FL_STENCIL | FL_MULTISAMPLE);
ext->hasmultisample = TRUE; // FLTK only does SGI multisample, no ARB yet
#endif
} else {
rc = window->mode(FL_RGB8 | FL_DOUBLE | FL_STENCIL);
}
#else
// find an appropriate visual and colormap ...
rc = window->mode(FL_RGB8 | FL_DOUBLE | FL_STENCIL);
#endif
window->show();
// (7) bind the rendering context to the window
window->make_current();
// (8) actually request the window to be displayed
screenX = Fl::w();
screenY = Fl::h();
// (9) configure the rendering properly
setup_initial_opengl_state(); // setup initial OpenGL state
// set flags for the capabilities of this display
// whether we can do antialiasing or not.
if (ext->hasmultisample)
aaAvailable = TRUE; // we use multisampling over other methods
else
aaAvailable = FALSE; // no non-multisample implementation yet
// set default settings
if (ext->hasmultisample) {
aa_on(); // enable fast multisample based antialiasing by default
// other antialiasing techniques are slow, so only multisample
// makes sense to enable by default.
}
cueingAvailable = TRUE;
cueing_on(); // leave depth cueing on by default, despite the speed hit.
cullingAvailable = TRUE;
culling_off();
set_sphere_mode(sphereMode);
set_sphere_res(sphereRes);
set_line_width(lineWidth);
set_line_style(lineStyle);
// reshape and clear the display, which initializes some other variables
reshape();
normal();
clear();
update();
}
