void GemMan :: destroyWindow()
{
GemMan::pleaseDestroy=false;
// don't want to get rid of this
// if (s_singleContext) return;
// nothing to destroy...
if (!m_windowState) return;
stopRendering();
clock_unset(s_windowClock);
s_windowClock = NULL;
glFlush();
glFinish();
destroyGemWindow(gfxInfo);
m_windowState = 0;
windowCleanup();
// this should really go into the GemWinCreate<OS> files::
// reestablish the const glxContext
/* this crashes on linux with intel cards */
gemWinMakeCurrent(constInfo);
s_windowRun = 0;
}
/////////////////////////////////////////////////////////
// destroy window
//
/////////////////////////////////////////////////////////
void gemglxwindow :: destroy(void)
{
/* both glXMakeCurrent() and XCloseDisplay() will crash the application
* if the handler of the display (m_pimpl->dpy) is invalid, e.g. because
* somebody closed the Gem-window with xkill or by clicking on the "x" of the window
*/
if (m_pimpl->dpy) {
int err=0;
#ifdef HAVE_LIBXXF86VM
if (m_pimpl->fs) {
XF86VidModeSwitchToMode(m_pimpl->dpy, m_pimpl->screen, &m_pimpl->deskMode);
XF86VidModeSetViewPort(m_pimpl->dpy, m_pimpl->screen, 0, 0);
m_pimpl->fs=0;
}
#endif
/* patch by cesare marilungo to prevent the crash "on my laptop" */
glXMakeCurrent(m_pimpl->dpy, None,
NULL); /* this crashes if no window is there! */
if (m_pimpl->glxcontext) {
// this crashes sometimes on my laptop:
glXDestroyContext(m_pimpl->dpy, m_pimpl->glxcontext);
}
if (m_pimpl->win) {
XUnmapWindow (m_pimpl->dpy, m_pimpl->win);
err=XDestroyWindow(m_pimpl->dpy, m_pimpl->win);
if(err) {
verbose(1, "XDestroyWindow returned %d", err);
}
}
if (m_pimpl->cmap) {
err=XFreeColormap(m_pimpl->dpy, m_pimpl->cmap);
if(err) {
verbose(1, "XFreeColormap returned %d", err);
}
}
XFlush( m_pimpl->dpy );
err=XCloseDisplay(m_pimpl->dpy); /* this crashes if no window is there */
if(err) {
verbose(1, "XCloseDisplay returned %d", err);
}
}
m_pimpl->dpy = NULL;
m_pimpl->win = 0;
m_pimpl->cmap = 0;
m_pimpl->glxcontext = NULL;
if(m_pimpl->delete_atom) {
m_pimpl->delete_atom=None; /* not very sophisticated destruction...*/
}
destroyGemWindow();
}
/////////////////////////////////////////////////////////
// destroyGemWindow
//
/////////////////////////////////////////////////////////
void gemw32window:: destroy(void)
{
if (m_fullscreen)
ChangeDisplaySettings(NULL,0); // Switch Back To The Desktop
if(m_win)
delete m_win;
m_win=NULL;
destroyGemWindow();
}
/////////////////////////////////////////////////////////
// destroy window
//
/////////////////////////////////////////////////////////
void gemglutwindow :: destroy(void)
{
destroyGemWindow();
m_window=0;
info("window", "closed");
}
/////////////////////////////////////////////////////////
// destroy window
//
/////////////////////////////////////////////////////////
void gemsdlwindow :: destroy(void)
{
destroyGemWindow();
m_surface=NULL;
info("window", "closed");
}
/////////////////////////////////////////////////////////
// createGemWindow
//
/////////////////////////////////////////////////////////
GEM_EXTERN int createGemWindow(WindowInfo &info, WindowHints &hints)
{
static int firstTime = 1;
// Register the frame class
HINSTANCE hInstance = GetModuleHandle(NULL);
if (!hInstance)
{
error("GEM: Unable to get module instance");
return(0);
}
if (firstTime)
{
WNDCLASS wndclass;
wndclass.style = 0;
wndclass.lpfnWndProc = (WNDPROC)MainWndProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hInstance;
wndclass.hCursor = LoadCursor(NULL, IDC_CROSS);
wndclass.hIcon = LoadIcon(NULL, IDI_WINLOGO);
wndclass.hbrBackground = NULL;
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = "GEM";
if (!RegisterClass(&wndclass) )
{
error("GEM: Unable to register window class");
return(0);
}
firstTime = 0;
}
DWORD dwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
DWORD style = WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
hints.real_w = hints.width;
hints.real_h = hints.height;
int x = hints.x_offset;
int y = hints.y_offset;
bool fullscreen=(hints.fullscreen!=0);
if (fullscreen){
DEVMODE dmScreenSettings; // Device Mode
if (!EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &dmScreenSettings)){
error("GEM: couldn't get screen capabilities!");
}
int w = dmScreenSettings.dmPelsWidth;
int h = dmScreenSettings.dmPelsHeight;
x=y=0;
memset(&dmScreenSettings,0,sizeof(dmScreenSettings)); // Makes Sure Memory's Cleared
dmScreenSettings.dmSize=sizeof(dmScreenSettings); // Size Of The Devmode Structure
dmScreenSettings.dmPelsWidth = hints.width; // Selected Screen Width
dmScreenSettings.dmPelsHeight = hints.height; // Selected Screen Height
dmScreenSettings.dmBitsPerPel = 32; // Selected Bits Per Pixel
dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
// Try To Set Selected Mode And Get Results. NOTE: CDS_FULLSCREEN Gets Rid Of Start Bar.
if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL) {
dmScreenSettings.dmPelsWidth = w;
dmScreenSettings.dmPelsHeight = h;
if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL) {
error("GEM: couldn't switch to fullscreen");
fullscreen=false;
} else {
hints.real_h=h;
hints.real_w=w;
}
}
}
if (fullscreen){
dwExStyle = WS_EX_APPWINDOW;
style |= WS_POPUP;
} else {
dwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
if (hints.border)
style |= WS_OVERLAPPEDWINDOW;
else
style |= WS_POPUP;
}
info.fs = fullscreen;//hints.fullscreen;
// Since Windows uses some of the window for the border, etc,
// we have to ask how big the window should really be
RECT newSize;
newSize.left = x;
newSize.top = y;
newSize.right = hints.real_w+x;
newSize.bottom = hints.real_h+y;
AdjustWindowRectEx(&newSize, style, FALSE, dwExStyle); // no menu
if (newSize.left<0 && x>=0){
newSize.right-=newSize.left;
newSize.left=0;
}
if (newSize.top<0 && y>=0){
newSize.bottom-=newSize.top;
newSize.top=0;
}
// Create the window
info.win = CreateWindowEx (
dwExStyle,
"GEM",
hints.title,
style,
newSize.left,
newSize.top,
newSize.right - newSize.left,
newSize.bottom - newSize.top,
NULL,
NULL,
hInstance,
NULL);
if (!info.win) {
error("GEM: Unable to create window");
return(0);
}
// create the device context
info.dc = GetDC(info.win);
if (!info.dc) {
error("GEM: Unable to create device context");
destroyGemWindow(info);
return(0);
}
// set the pixel format for the window
if (!bSetupPixelFormat(info.dc, hints)) {
error("GEM: Unable to set window pixel format");
destroyGemWindow(info);
return(0);
}
// create the OpenGL context
info.context = wglCreateContext(info.dc);
if (!info.context) {
error("GEM: Unable to create OpenGL context");
destroyGemWindow(info);
return(0);
}
// do we share display lists?
if (hints.shared) wglShareLists(hints.shared, info.context);
// make the context the current rendering context
if (!wglMakeCurrent(info.dc, info.context)) {
error("GEM: Unable to make OpenGL context current");
destroyGemWindow(info);
return(0);
}
if (!hints.actuallyDisplay) return(1);
// show and update main window
if (fullscreen){
ShowWindow(info.win,SW_SHOW); // Show The Window
SetForegroundWindow(info.win); // Slightly Higher Priority
SetFocus(info.win);
} else ShowWindow(info.win, SW_SHOWNORMAL);
UpdateWindow(info.win);
return(1);
}
/////////////////////////////////////////////////////////
// destroyConstWindow
//
/////////////////////////////////////////////////////////
void destroyConstWindow()
{
if (!s_singleContext)
destroyGemWindow(constInfo);
}
/////////////////////////////////////////////////////////
// createGemWindow
//
/////////////////////////////////////////////////////////
GEM_EXTERN int createGemWindow(WindowInfo &info, WindowHints &hints)
{
static int firstTime = 1;
if (firstTime) {
SDL_Init(SDL_INIT_VIDEO);
firstTime = 0;
}
if (! hints.actuallyDisplay) {
return(1);
}
int w = hints.width;
int h = hints.height;
int x = hints.x_offset;
int y = hints.y_offset;
bool fullscreen = (hints.fullscreen != 0);
bool border = (hints.border != 0);
info.win = SDL_CreateWindow(hints.title, x, y, w, h
, SDL_WINDOW_OPENGL
| SDL_WINDOW_RESIZABLE
| (fullscreen ? SDL_WINDOW_FULLSCREEN : 0)
| (border ? 0 : SDL_WINDOW_BORDERLESS)
);
info.fs = fullscreen;
if (! info.win) {
error("GEM: Unable to create window");
return(0);
}
// Emscripten doesn't support shared contexts yet
#if 0
if (hints.shared) {
if (SDL_GL_MakeCurrent(info.win, hints.shared)) {
error("GEM: Unable to make shared OpenGL context current: %s", SDL_GetError());
destroyGemWindow(info);
return(0);
}
SDL_GL_SetAttribute(SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 1);
}
#endif
info.context = SDL_GL_CreateContext(info.win);
#if 0
if (! info.context) {
error("GEM: Unable to create OpenGL context: %s", SDL_GetError());
SDL_GL_SetAttribute(SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 0);
destroyGemWindow(info);
return(0);
}
SDL_GL_SetAttribute(SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 0);
#endif
if (SDL_GL_MakeCurrent(info.win, info.context)) {
error("GEM: Unable to make OpenGL context current: %s", SDL_GetError());
destroyGemWindow(info);
return(0);
}
if (fullscreen) {
SDL_RaiseWindow(info.win);
}
return(1);
}
