mirror of
https://github.com/gnif/LookingGlass.git
synced 2024-11-10 08:38:20 +00:00
b3ca872cef
Currently, we scale the desktop up to the next largest integer, and rely on the wayland compositor to scale it back down to the correct size. This is obviously undesirable. In this commit, we attempt to detect the actual fractional scaling by finding the current active mode in wl_output, and dividing it by the logical screen size reported by xdg_output, taking into consideration screen rotation. We then use wp_viewporter to set the exact buffer and viewport sizes if fractional scaling is needed.
105 lines
4.2 KiB
C
105 lines
4.2 KiB
C
/**
|
|
* Looking Glass
|
|
* Copyright (C) 2017-2021 The Looking Glass Authors
|
|
* https://looking-glass.io
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the Free
|
|
* Software Foundation; either version 2 of the License, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc., 59
|
|
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "wayland.h"
|
|
|
|
#include <stdbool.h>
|
|
#include <string.h>
|
|
|
|
#include <wayland-client.h>
|
|
|
|
#include "common/debug.h"
|
|
|
|
static void registryGlobalHandler(void * data, struct wl_registry * registry,
|
|
uint32_t name, const char * interface, uint32_t version)
|
|
{
|
|
if (!strcmp(interface, wl_output_interface.name))
|
|
waylandOutputBind(name, version);
|
|
else if (!strcmp(interface, wl_seat_interface.name) && !wlWm.seat)
|
|
wlWm.seat = wl_registry_bind(wlWm.registry, name, &wl_seat_interface, 1);
|
|
else if (!strcmp(interface, wl_shm_interface.name))
|
|
wlWm.shm = wl_registry_bind(wlWm.registry, name, &wl_shm_interface, 1);
|
|
else if (!strcmp(interface, wl_compositor_interface.name) && version >= 3)
|
|
wlWm.compositor = wl_registry_bind(wlWm.registry, name,
|
|
// we only need v3 to run, but v4 can use eglSwapBuffersWithDamageKHR
|
|
&wl_compositor_interface, version > 4 ? 4 : version);
|
|
#ifndef ENABLE_LIBDECOR
|
|
else if (!strcmp(interface, xdg_wm_base_interface.name))
|
|
wlWm.xdgWmBase = wl_registry_bind(wlWm.registry, name, &xdg_wm_base_interface, 1);
|
|
else if (!strcmp(interface, zxdg_decoration_manager_v1_interface.name))
|
|
wlWm.xdgDecorationManager = wl_registry_bind(wlWm.registry, name,
|
|
&zxdg_decoration_manager_v1_interface, 1);
|
|
#endif
|
|
else if (!strcmp(interface, wp_presentation_interface.name))
|
|
wlWm.presentation = wl_registry_bind(wlWm.registry, name,
|
|
&wp_presentation_interface, 1);
|
|
else if (!strcmp(interface, wp_viewporter_interface.name))
|
|
wlWm.viewporter = wl_registry_bind(wlWm.registry, name,
|
|
&wp_viewporter_interface, 1);
|
|
else if (!strcmp(interface, zwp_relative_pointer_manager_v1_interface.name))
|
|
wlWm.relativePointerManager = wl_registry_bind(wlWm.registry, name,
|
|
&zwp_relative_pointer_manager_v1_interface, 1);
|
|
else if (!strcmp(interface, zwp_pointer_constraints_v1_interface.name))
|
|
wlWm.pointerConstraints = wl_registry_bind(wlWm.registry, name,
|
|
&zwp_pointer_constraints_v1_interface, 1);
|
|
else if (!strcmp(interface, zwp_keyboard_shortcuts_inhibit_manager_v1_interface.name))
|
|
wlWm.keyboardInhibitManager = wl_registry_bind(wlWm.registry, name,
|
|
&zwp_keyboard_shortcuts_inhibit_manager_v1_interface, 1);
|
|
else if (!strcmp(interface, wl_data_device_manager_interface.name) && version >= 3)
|
|
wlWm.dataDeviceManager = wl_registry_bind(wlWm.registry, name,
|
|
&wl_data_device_manager_interface, 3);
|
|
else if (!strcmp(interface, zwp_idle_inhibit_manager_v1_interface.name))
|
|
wlWm.idleInhibitManager = wl_registry_bind(wlWm.registry, name,
|
|
&zwp_idle_inhibit_manager_v1_interface, 1);
|
|
else if (!strcmp(interface, zxdg_output_manager_v1_interface.name) && version >= 2)
|
|
wlWm.xdgOutputManager = wl_registry_bind(wlWm.registry, name,
|
|
&zxdg_output_manager_v1_interface, 2);
|
|
}
|
|
|
|
static void registryGlobalRemoveHandler(void * data,
|
|
struct wl_registry * registry, uint32_t name)
|
|
{
|
|
waylandOutputTryUnbind(name);
|
|
}
|
|
|
|
static const struct wl_registry_listener registryListener = {
|
|
.global = registryGlobalHandler,
|
|
.global_remove = registryGlobalRemoveHandler,
|
|
};
|
|
|
|
bool waylandRegistryInit(void)
|
|
{
|
|
wlWm.registry = wl_display_get_registry(wlWm.display);
|
|
if (!wlWm.registry)
|
|
{
|
|
DEBUG_ERROR("Unable to find wl_registry");
|
|
return false;
|
|
}
|
|
|
|
wl_registry_add_listener(wlWm.registry, ®istryListener, NULL);
|
|
wl_display_roundtrip(wlWm.display);
|
|
return true;
|
|
}
|
|
|
|
void waylandRegistryFree(void)
|
|
{
|
|
wl_registry_destroy(wlWm.registry);
|
|
}
|