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Fixed bug 4085 - X11: Allow configuring _NET_WM_BYPASS_COMPOSITOR through SDL hints 

Callum McGing

This patch allows the user to disable the behaviour that blocks the compositor through a new hint: SDL_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR. This allows tools or other windowed applications to behave properly under KWin.
This commit is contained in:
Sam Lantinga 2018-02-16 10:23:10 -08:00
parent 926d803f83
commit 8ddebfa06e
2 changed files with 18 additions and 5 deletions
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12
include/SDL_hints.h
View File

@ -211,6 +211,18 @@ extern "C" {
*/
#define SDL_HINT_VIDEO_X11_NET_WM_PING "SDL_VIDEO_X11_NET_WM_PING"
/**
* \brief A variable controlling whether the X11 _NET_WM_BYPASS_COMPOSITOR hint should be used.
*
* This variable can be set to the following values:
* "0" - Disable _NET_WM_BYPASS_COMPOSITOR
* "1" - Enable _NET_WM_BYPASS_COMPOSITOR
*
* By default SDL will use _NET_WM_BYPASS_COMPOSITOR
*
*/
#define SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR "SDL_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR"
/**
* \brief A variable controlling whether the window frame and title bar are interactive when the cursor is hidden
*

11
src/video/x11/SDL_x11window.c
View File

@ -579,11 +579,12 @@ X11_CreateWindow(_THIS, SDL_Window * window)
wintype = X11_XInternAtom(display, wintype_name, False);
X11_XChangeProperty(display, w, _NET_WM_WINDOW_TYPE, XA_ATOM, 32,
PropModeReplace, (unsigned char *)&wintype, 1);
_NET_WM_BYPASS_COMPOSITOR = X11_XInternAtom(display, "_NET_WM_BYPASS_COMPOSITOR", False);
X11_XChangeProperty(display, w, _NET_WM_BYPASS_COMPOSITOR, XA_CARDINAL, 32,
PropModeReplace,
(unsigned char *)&compositor, 1);
if (SDL_GetHintBoolean(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, SDL_TRUE)) {
_NET_WM_BYPASS_COMPOSITOR = X11_XInternAtom(display, "_NET_WM_BYPASS_COMPOSITOR", False);
X11_XChangeProperty(display, w, _NET_WM_BYPASS_COMPOSITOR, XA_CARDINAL, 32,
PropModeReplace,
(unsigned char *)&compositor, 1);
}
{
Atom protocols[3];