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d6b8823dce
We don't necessarily need `wl_output.release`, which is the only addition in v3. This allows Looking Glass to run on Ubuntu 20.04 without having to go difficult lengths to acquire newer Wayland packages. Since 20.04 is an LTS release, this seems worthwhile for the small amount of complexity this introduces. Fixes https://forum.level1techs.com/t/latest-build-allow-inhibiting-shortcuts-dialog-ubuntu/168684/6.
137 lines
3.3 KiB
C
137 lines
3.3 KiB
C
/*
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Looking Glass - KVM FrameRelay (KVMFR) Client
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Copyright (C) 2021 Guanzhong Chen (quantum2048@gmail.com)
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Copyright (C) 2021 Tudor Brindus (contact@tbrindus.ca)
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https://looking-glass.io
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "wayland.h"
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#include <stdbool.h>
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#include <string.h>
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#include <wayland-client.h>
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#include "common/debug.h"
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static void outputGeometryHandler(void * data, struct wl_output * output, int32_t x, int32_t y,
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int32_t physical_width, int32_t physical_height, int32_t subpixel, const char * make,
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const char * model, int32_t output_transform)
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{
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// Do nothing.
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}
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static void outputModeHandler(void * data, struct wl_output * wl_output, uint32_t flags,
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int32_t width, int32_t height, int32_t refresh)
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{
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// Do nothing.
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}
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static void outputDoneHandler(void * data, struct wl_output * output)
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{
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// Do nothing.
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}
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static void outputScaleHandler(void * opaque, struct wl_output * output, int32_t scale)
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{
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struct WaylandOutput * node = opaque;
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node->scale = scale;
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waylandWindowUpdateScale();
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}
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static const struct wl_output_listener outputListener = {
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.geometry = outputGeometryHandler,
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.mode = outputModeHandler,
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.done = outputDoneHandler,
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.scale = outputScaleHandler,
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};
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bool waylandOutputInit(void)
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{
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wl_list_init(&wlWm.outputs);
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return true;
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}
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void waylandOutputFree(void)
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{
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struct WaylandOutput * node;
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struct WaylandOutput * temp;
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wl_list_for_each_safe(node, temp, &wlWm.outputs, link)
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{
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if (node->version >= 3)
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wl_output_release(node->output);
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wl_list_remove(&node->link);
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free(node);
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}
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}
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void waylandOutputBind(uint32_t name, uint32_t version)
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{
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struct WaylandOutput * node = malloc(sizeof(struct WaylandOutput));
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if (!node)
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return;
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if (version < 2)
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{
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DEBUG_WARN("wl_output version too old: expected >= 2, got %d", version);
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return;
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}
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node->name = name;
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node->scale = 0;
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node->version = version;
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node->output = wl_registry_bind(wlWm.registry, name,
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&wl_output_interface, version >= 3 ? 3 : 2);
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if (!node->output)
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{
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DEBUG_ERROR("Failed to bind to wl_output %u\n", name);
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free(node);
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return;
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}
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wl_output_add_listener(node->output, &outputListener, node);
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wl_list_insert(&wlWm.outputs, &node->link);
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}
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void waylandOutputTryUnbind(uint32_t name)
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{
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struct WaylandOutput * node;
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wl_list_for_each(node, &wlWm.outputs, link)
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{
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if (node->name == name)
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{
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if (node->version >= 3)
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wl_output_release(node->output);
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wl_list_remove(&node->link);
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free(node);
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break;
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}
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}
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}
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int32_t waylandOutputGetScale(struct wl_output * output)
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{
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struct WaylandOutput * node;
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wl_list_for_each(node, &wlWm.outputs, link)
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if (node->output == output)
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return node->scale;
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return 0;
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}
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