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more robust window handling

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This commit is contained in:
cxgeorge 2001-07-18 06:25:53 +00:00
parent ec93057fcb
commit e3c0904c88
2 changed files with 107 additions and 55 deletions
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140
panda/src/wgldisplay/wglGraphicsWindow.cxx
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@ -76,38 +76,57 @@ void PrintErrorMessage(DWORD msgID) {
}
// fn exists so AtExitFn can call it without refcntr blowing up since its !=0
void wglGraphicsWindow::DestroyMe(bool bAtExit) {
void wglGraphicsWindow::DestroyMe(bool bAtExitFnCalled) {
_exiting_window = true; // needed before DestroyWindow call
if(_visual!=NULL)
if(_visual!=NULL) {
free(_visual);
_visual = NULL;
}
// several GL drivers (voodoo,ATI, not nvidia) crash if we call these wgl deletion routines from
// an atexit() fn. So we just wont call them for now. We're exiting the app anyway.
if(!bAtExit) {
// an atexit() fn. Possible that GL has already unloaded itself. So we just wont call them for now
// for that case, we're exiting the app anyway.
if(!bAtExitFnCalled) {
if(gl_show_fps_meter)
glDeleteLists(FONT_BITMAP_OGLDISPLAYLISTNUM, 128);
report_errors();
// implicitly calls gsg destructors which release GL objects (textures, display lists, etc)
_gsg = NULL;
HGLRC curcxt=wglGetCurrentContext();
if(curcxt!=NULL)
unmake_current();
if(_context!=NULL)
if(_context!=NULL) {
wglDeleteContext(_context);
_context = NULL;
}
}
if(_hdc!=NULL)
if(_hdc!=NULL) {
ReleaseDC(_mwindow,_hdc);
_hdc = NULL;
}
if((_hOldForegroundWindow!=NULL) && (_mwindow==GetForegroundWindow())) {
SetForegroundWindow(_hOldForegroundWindow);
}
if(_mwindow!=NULL) {
DestroyWindow(_mwindow);
hwnd_pandawin_map.erase(_mwindow);
_mwindow = NULL;
}
if(_pCurrent_display_settings!=NULL)
if(_pCurrent_display_settings!=NULL) {
delete _pCurrent_display_settings;
_pCurrent_display_settings = NULL;
}
if (_props._fullscreen) {
// revert to default display mode
@ -115,6 +134,10 @@ void wglGraphicsWindow::DestroyMe(bool bAtExit) {
}
}
void wglGraphicsWindow::close_window(int exit_status) {
DestroyMe(false);
}
////////////////////////////////////////////////////////////////////
// Function: Destructor
// Access:
@ -124,13 +147,13 @@ wglGraphicsWindow::~wglGraphicsWindow(void) {
DestroyMe(false);
}
void DestroyAllWindows(bool bAtExit) {
void DestroyAllWindows(bool bAtExitFnCalled) {
// need to go through all windows in map var and delete them
while(!hwnd_pandawin_map.empty()) {
// cant use a for loop cause DestroyMe erases things out from under us, so iterator is invalid
HWND_PANDAWIN_MAP::iterator pwin = hwnd_pandawin_map.begin();
if((*pwin).second != NULL)
(*pwin).second->DestroyMe(bAtExit);
(*pwin).second->DestroyMe(bAtExitFnCalled);
}
}
@ -250,6 +273,8 @@ void wglGraphicsWindow::config(void) {
_mwindow = NULL;
_gsg = NULL;
_hOldForegroundWindow=GetForegroundWindow();
#if 0
// bugbug need to add wdx handling routines
_WindowAdjustingType = NotAdjusting;
@ -436,11 +461,11 @@ void wglGraphicsWindow::config(void) {
// int pfnum=ChoosePixelFormat(_hdc, _visual);
if(wgldisplay_cat.is_debug())
wgldisplay_cat.debug() << "wglGraphicsWindow::config() - picking pixfmt #"<< pfnum <<endl;
wgldisplay_cat.debug() << "config() - picking pixfmt #"<< pfnum <<endl;
if (!SetPixelFormat(_hdc, pfnum, _visual)) {
wgldisplay_cat.fatal()
<< "wglGraphicsWindow::config() - SetPixelFormat failed after window create" << endl;
<< "config() - SetPixelFormat failed after window create" << endl;
exit(1);
}
@ -450,7 +475,7 @@ void wglGraphicsWindow::config(void) {
_context = wglCreateContext(_hdc);
if (!_context) {
wgldisplay_cat.fatal()
<< "wglGraphicsWindow::config() - failed to create Win32 rendering context" << endl;
<< "config() - failed to create Win32 rendering context" << endl;
exit(1);
}
@ -474,6 +499,8 @@ void wglGraphicsWindow::config(void) {
make_current();
make_gsg();
// _glgsg = DCAST(GLGraphicsStateGuardian, _gsg); dont need this now
string tmpstr((char*)glGetString(GL_EXTENSIONS));
_extensions_str = tmpstr;
@ -530,12 +557,12 @@ void wglGraphicsWindow::config(void) {
const GLubyte *vendorname=glGetString(GL_VENDOR);
if(vendorname!=NULL) {
if(strncmp((const char *)vendorname,"Microsoft",9)==0) {
wgldisplay_cat.debug() << "wglGraphicsWindow:: GL VendorID: " << glGetString(GL_VENDOR) << " (Software Rendering)" << endl;
wgldisplay_cat.debug() << " GL VendorID: " << glGetString(GL_VENDOR) << " (Software Rendering)" << endl;
} else {
wgldisplay_cat.debug() << "wglGraphicsWindow:: GL VendorID: " << glGetString(GL_VENDOR) << endl;
wgldisplay_cat.debug() << " GL VendorID: " << glGetString(GL_VENDOR) << endl;
}
} else {
wgldisplay_cat.info() << "wglGraphicsWindow:: glGetString(GL_VENDOR) returns NULL!!!\n";
wgldisplay_cat.info() << " glGetString(GL_VENDOR) returns NULL!!!\n";
}
}
}
@ -714,7 +741,7 @@ try_for_visual(wglGraphicsPipe *pipe, int mask,
if (stereo) {
if (!(match->dwFlags & PFD_STEREO)) {
wgldisplay_cat.info()
<< "wglGraphicsWindow::try_for_visual() - request for stereo failed" << endl;
<< "try_for_visual() - request for stereo failed" << endl;
}
}
}
@ -754,11 +781,11 @@ int wglGraphicsWindow::choose_visual(void) {
if (mask & W_MULTISAMPLE) {
wgldisplay_cat.info()
<< "wglGraphicsWindow::config() - multisample not supported"<< endl;
<< "config() - multisample not supported"<< endl;
mask &= ~W_MULTISAMPLE;
}
wgldisplay_cat.info()
<< "wglGraphicsWindow::mask =0x" << (void*) mask
<< "mask =0x" << (void*) mask
<< endl;
PIXELFORMATDESCRIPTOR pfd;
@ -846,16 +873,16 @@ int wglGraphicsWindow::choose_visual(void) {
}
if(i>MaxPixFmtNum) {
wgldisplay_cat.error() << "wglGraphicsWindow:: ERROR: couldn't find HW-accelerated OpenGL pixfmt appropriate for this desktop!!\n";
wgldisplay_cat.error() << "ERROR: couldn't find HW-accelerated OpenGL pixfmt appropriate for this desktop!!\n";
wgldisplay_cat.error() << "make sure OpenGL driver is installed, and try reducing the screen size\n";
if(cur_bpp>16)
wgldisplay_cat.error() << "wglGraphicsWindow:: try reducing the screen resolution or reducing the screen pixeldepth\n";
else wgldisplay_cat.error() << "wglGraphicsWindow:: try reducing the screen resolution\n";
wgldisplay_cat.error() << "or reducing the screen pixeldepth\n";
exit(1);
}
_visual = (PIXELFORMATDESCRIPTOR*)malloc(sizeof(PIXELFORMATDESCRIPTOR));
if(_visual==NULL) {
wgldisplay_cat.error() << "wglGraphicsWindow:: couldnt alloc mem for PIXELFORMATDESCRIPTOR\n";
wgldisplay_cat.error() << "couldnt alloc mem for PIXELFORMATDESCRIPTOR\n";
exit(1);
}
@ -1131,36 +1158,33 @@ supports_update() const {
// Description:
////////////////////////////////////////////////////////////////////
void wglGraphicsWindow::update(void) {
#ifdef DO_PSTATS
if(!_window_inactive) {
_show_code_pcollector.stop();
PStatClient::main_tick();
}
#endif
if(_window_inactive) {
if (_change_mask)
if(_change_mask)
handle_changes();
process_events();
if(_window_inactive) {
Sleep( 500 ); // Dont consume CPU.
throw_event("PandaPaused"); // throw panda event to invoke network-only processing
return;
}
#ifdef DO_PSTATS
_show_code_pcollector.stop();
PStatClient::main_tick();
#endif
if (_change_mask)
handle_changes();
process_events();
} else {
call_draw_callback(true);
if(_idle_callback)
call_idle_callback();
#ifdef DO_PSTATS
#ifdef DO_PSTATS
_show_code_pcollector.start();
#endif
#endif
}
}
////////////////////////////////////////////////////////////////////
@ -1196,13 +1220,21 @@ void wglGraphicsWindow::enable_mouse_passive_motion(bool val) {
// Description:
////////////////////////////////////////////////////////////////////
void wglGraphicsWindow::make_current(void) {
PStatTimer timer(_make_current_pcollector);
if((_hdc==NULL)||(_window_inactive)) {
return; // we're only allow unmake_current() to set this to NULL
}
PStatTimer timer(_make_current_pcollector);
HGLRC current_context = wglGetCurrentContext();
HDC current_dc = wglGetCurrentDC();
if ((current_context != _context) || (current_dc != _hdc)) {
wglMakeCurrent(_hdc, _context);
if(!wglMakeCurrent(_hdc, _context)) {
PrintErrorMessage(LAST_ERROR);
}
}
report_errors();
}
////////////////////////////////////////////////////////////////////
@ -1211,7 +1243,11 @@ void wglGraphicsWindow::make_current(void) {
// Description:
////////////////////////////////////////////////////////////////////
void wglGraphicsWindow::unmake_current(void) {
wglMakeCurrent(NULL, NULL);
report_errors();
if(!wglMakeCurrent(NULL, NULL)) {
PrintErrorMessage(LAST_ERROR);
}
}
////////////////////////////////////////////////////////////////////
@ -1294,7 +1330,18 @@ window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
break;
case WM_CLOSE:
PostQuitMessage(0); // send WM_QUIT message
DestroyMe(false);
// BUGBUG: right now there is no way to tell the panda app the graphics window is invalid or
// has been closed by the user, to prevent further methods from being called on the window.
// this needs to be added to panda for multiple windows to work. in the meantime, just
// trigger an exit here if numwindows==0, since that is the expected behavior when all
// windows are closed (should be done by the app though, and it assumes you only make this
// type of panda gfx window)
if(hwnd_pandawin_map.size()==0) {
exit(0);
}
return 0;
case WM_ACTIVATE: {
@ -1303,7 +1350,7 @@ window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
// here we want to suspend all gfx and execution, switch display modes and minimize ourself
// until we are switched back to
if(wparam==WA_INACTIVE) {
if(LOWORD(wparam)==WA_INACTIVE) {
if(wgldisplay_cat.is_spam())
wgldisplay_cat.spam() << "WGL window deactivated, releasing gl context and waiting...\n";
_window_inactive = true;
@ -1315,6 +1362,8 @@ window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
// revert to default display mode
ChangeDisplaySettings(NULL,0x0);
#endif
if(HIWORD(wparam)==0x0) // otherwise window already minimized
ShowWindow(_mwindow, SW_MINIMIZE);
} else {
if(_window_inactive) {
@ -1324,13 +1373,14 @@ window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
// move window to top of zorder,
SetWindowPos(_mwindow, HWND_TOP, 0,0,0,0, SWP_NOMOVE | SWP_NOSENDCHANGING | SWP_NOSIZE);
make_current();
ShowWindow(_mwindow, SW_SHOWNORMAL);
#ifdef ENABLE_ALTTAB_DISPLAYCHANGE
ChangeDisplaySettings(_pCurrent_display_settings,CDS_FULLSCREEN);
#endif
make_current();
}
}
return 0;
@ -1351,7 +1401,7 @@ window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) {
case WM_SYSKEYDOWN:
case WM_KEYDOWN: {
POINT point;
make_current();
// make_current(); what does OGL have to do with input?
GetCursorPos(&point);
ScreenToClient(hwnd, &point);
handle_keypress(lookup_key(wparam), point.x, point.y);

4
panda/src/wgldisplay/wglGraphicsWindow.h
View File

@ -111,6 +111,7 @@ private:
PIXELFORMATDESCRIPTOR* _visual;
HPALETTE _colormap;
HCURSOR _hMouseCursor;
HWND _hOldForegroundWindow;
DEVMODE *_pCurrent_display_settings;
@ -141,7 +142,8 @@ public:
LONG WINAPI window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam);
ButtonHandle lookup_key(WPARAM wparam) const;
void DestroyMe(bool bAtExit);
void DestroyMe(bool bAtExitFnCalled);
virtual void close_window(int exit_status);
private:
static TypeHandle _type_handle;