130 lines
3.8 KiB
C
130 lines
3.8 KiB
C
/*
|
|
Simple DirectMedia Layer
|
|
Copyright 2024 Igalia S.L.
|
|
|
|
This software is provided 'as-is', without any express or implied
|
|
warranty. In no event will the authors be held liable for any damages
|
|
arising from the use of this software.
|
|
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it
|
|
freely, subject to the following restrictions:
|
|
|
|
1. The origin of this software must not be misrepresented; you must not
|
|
claim that you wrote the original software. If you use this software
|
|
in a product, an acknowledgment in the product documentation would be
|
|
appreciated but is not required.
|
|
2. Altered source versions must be plainly marked as such, and must not be
|
|
misrepresented as being the original software.
|
|
3. This notice may not be removed or altered from any source distribution.
|
|
*/
|
|
|
|
#include "SDL_internal.h"
|
|
|
|
#if defined(SDL_VIDEO_DRIVER_X11)
|
|
|
|
#include "SDL_x11video.h"
|
|
#include "SDL_x11settings.h"
|
|
|
|
#define SDL_XSETTINGS_GDK_WINDOW_SCALING_FACTOR "Gdk/WindowScalingFactor"
|
|
#define SDL_XSETTINGS_XFT_DPI "Xft/DPI"
|
|
|
|
static void X11_XsettingsNotify(const char *name, XSettingsAction action, XSettingsSetting *setting, void *data)
|
|
{
|
|
SDL_VideoDevice *_this = data;
|
|
float scale_factor = 1.0;
|
|
int i;
|
|
|
|
if (SDL_strcmp(name, SDL_XSETTINGS_GDK_WINDOW_SCALING_FACTOR) != 0 ||
|
|
SDL_strcmp(name, SDL_XSETTINGS_XFT_DPI) != 0) {
|
|
return;
|
|
}
|
|
|
|
if (setting->type != XSETTINGS_TYPE_INT) {
|
|
return;
|
|
}
|
|
|
|
switch (action) {
|
|
case XSETTINGS_ACTION_NEW:
|
|
SDL_FALLTHROUGH;
|
|
case XSETTINGS_ACTION_CHANGED:
|
|
scale_factor = setting->data.v_int;
|
|
if (SDL_strcmp(name, SDL_XSETTINGS_XFT_DPI) == 0) {
|
|
scale_factor = scale_factor / 1024.0f / 96.0f;
|
|
}
|
|
break;
|
|
case XSETTINGS_ACTION_DELETED:
|
|
scale_factor = 1.0;
|
|
break;
|
|
}
|
|
|
|
if (_this) {
|
|
for (i = 0; i < _this->num_displays; ++i) {
|
|
SDL_SetDisplayContentScale(_this->displays[i], scale_factor);
|
|
}
|
|
}
|
|
}
|
|
|
|
void X11_InitXsettings(SDL_VideoDevice *_this)
|
|
{
|
|
SDL_VideoData *data = _this->internal;
|
|
SDLX11_SettingsData *xsettings_data = &data->xsettings_data;
|
|
|
|
xsettings_data->xsettings = xsettings_client_new(data->display,
|
|
DefaultScreen(data->display), X11_XsettingsNotify, NULL, _this);
|
|
|
|
}
|
|
|
|
void X11_QuitXsettings(SDL_VideoDevice *_this)
|
|
{
|
|
SDL_VideoData *data = _this->internal;
|
|
SDLX11_SettingsData *xsettings_data = &data->xsettings_data;
|
|
|
|
if (xsettings_data->xsettings) {
|
|
xsettings_client_destroy(xsettings_data->xsettings);
|
|
xsettings_data->xsettings = NULL;
|
|
}
|
|
}
|
|
|
|
void X11_HandleXsettings(SDL_VideoDevice *_this, const XEvent *xevent)
|
|
{
|
|
SDL_VideoData *data = _this->internal;
|
|
SDLX11_SettingsData *xsettings_data = &data->xsettings_data;
|
|
|
|
if (xsettings_data->xsettings) {
|
|
if (!xsettings_client_process_event(xsettings_data->xsettings, xevent)) {
|
|
xsettings_client_destroy(xsettings_data->xsettings);
|
|
xsettings_data->xsettings = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
int X11_GetXsettingsIntKey(SDL_VideoDevice *_this, const char *key, int fallback_value) {
|
|
SDL_VideoData *data = _this->internal;
|
|
SDLX11_SettingsData *xsettings_data = &data->xsettings_data;
|
|
XSettingsSetting *setting = NULL;
|
|
int res = fallback_value;
|
|
|
|
|
|
if (xsettings_data->xsettings) {
|
|
if (xsettings_client_get_setting(xsettings_data->xsettings, key, &setting) != XSETTINGS_SUCCESS) {
|
|
goto no_key;
|
|
}
|
|
|
|
if (setting->type != XSETTINGS_TYPE_INT) {
|
|
goto no_key;
|
|
}
|
|
|
|
res = setting->data.v_int;
|
|
}
|
|
|
|
no_key:
|
|
if (setting) {
|
|
xsettings_setting_free(setting);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
#endif // SDL_VIDEO_DRIVER_X11
|