mirror of
https://github.com/gnif/LookingGlass.git
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137 lines
3.3 KiB
C
137 lines
3.3 KiB
C
/**
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* Looking Glass
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* Copyright (C) 2017-2021 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple 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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