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X11: Add IPC helper window

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This commit is contained in:
Camilla Berglund 2015-10-24 22:46:56 +02:00 committed by Camilla Berglund
parent fafe1732b5
commit 3b3a1390ad
2 changed files with 24 additions and 2 deletions
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24
src/x11_init.c
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@ -630,6 +630,20 @@ static Cursor createHiddenCursor(void)
return _glfwCreateCursorX11(&image, 0, 0); return _glfwCreateCursorX11(&image, 0, 0);
} }
// Create a helper window for IPC
//
static Window createHelperWindow(void)
{
XSetWindowAttributes wa;
wa.event_mask = PropertyChangeMask;
return XCreateWindow(_glfw.x11.display, _glfw.x11.root,
0, 0, 1, 1, 0, 0,
InputOnly,
DefaultVisual(_glfw.x11.display, _glfw.x11.screen),
CWEventMask, &wa);
}
// X error handler // X error handler
// //
static int errorHandler(Display *display, XErrorEvent* event) static int errorHandler(Display *display, XErrorEvent* event)
@ -741,12 +755,12 @@ int _glfwPlatformInit(void)
_glfw.x11.screen = DefaultScreen(_glfw.x11.display); _glfw.x11.screen = DefaultScreen(_glfw.x11.display);
_glfw.x11.root = RootWindow(_glfw.x11.display, _glfw.x11.screen); _glfw.x11.root = RootWindow(_glfw.x11.display, _glfw.x11.screen);
_glfw.x11.context = XUniqueContext(); _glfw.x11.context = XUniqueContext();
_glfw.x11.helperWindowHandle = createHelperWindow();
_glfw.x11.hiddenCursorHandle = createHiddenCursor();
if (!initExtensions()) if (!initExtensions())
return GLFW_FALSE; return GLFW_FALSE;
_glfw.x11.hiddenCursorHandle = createHiddenCursor();
if (XSupportsLocale()) if (XSupportsLocale())
{ {
XSetLocaleModifiers(""); XSetLocaleModifiers("");
@ -781,6 +795,12 @@ void _glfwPlatformTerminate(void)
_glfw.x11.x11xcb.handle = NULL; _glfw.x11.x11xcb.handle = NULL;
} }
if (_glfw.x11.helperWindowHandle)
{
XDestroyWindow(_glfw.x11.display, _glfw.x11.helperWindowHandle);
_glfw.x11.helperWindowHandle = None;
}
if (_glfw.x11.hiddenCursorHandle) if (_glfw.x11.hiddenCursorHandle)
{ {
XFreeCursor(_glfw.x11.display, _glfw.x11.hiddenCursorHandle); XFreeCursor(_glfw.x11.display, _glfw.x11.hiddenCursorHandle);

2
src/x11_platform.h
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@ -136,6 +136,8 @@ typedef struct _GLFWlibraryX11
int screen; int screen;
Window root; Window root;
// Helper window for IPC
Window helperWindowHandle;
// Invisible cursor for hidden cursor mode // Invisible cursor for hidden cursor mode
Cursor hiddenCursorHandle; Cursor hiddenCursorHandle;
// Context for mapping window XIDs to _GLFWwindow pointers // Context for mapping window XIDs to _GLFWwindow pointers