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https://github.com/gnif/LookingGlass.git
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e70cfd84fb
Instead of damaging the entire surface when rendering a cursor move, we can use the EGL_KHR_swap_buffers_with_damage extension to only damage the part of the window covered by the cursor. This should reduce the cursor movement latency on Wayland.
117 lines
2.9 KiB
C
117 lines
2.9 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 "app.h"
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#include "common/debug.h"
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// Surface-handling listeners.
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void waylandWindowUpdateScale(void)
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{
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int32_t maxScale = 0;
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struct SurfaceOutput * node;
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wl_list_for_each(node, &wlWm.surfaceOutputs, link)
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{
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int32_t scale = waylandOutputGetScale(node->output);
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if (scale > maxScale)
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maxScale = scale;
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}
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if (maxScale)
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{
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wlWm.scale = maxScale;
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wlWm.needsResize = true;
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}
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}
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static void wlSurfaceEnterHandler(void * data, struct wl_surface * surface, struct wl_output * output)
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{
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struct SurfaceOutput * node = malloc(sizeof(struct SurfaceOutput));
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node->output = output;
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wl_list_insert(&wlWm.surfaceOutputs, &node->link);
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waylandWindowUpdateScale();
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}
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static void wlSurfaceLeaveHandler(void * data, struct wl_surface * surface, struct wl_output * output)
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{
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struct SurfaceOutput * node;
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wl_list_for_each(node, &wlWm.surfaceOutputs, link)
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if (node->output == output)
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{
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wl_list_remove(&node->link);
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break;
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}
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waylandWindowUpdateScale();
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}
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static const struct wl_surface_listener wlSurfaceListener = {
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.enter = wlSurfaceEnterHandler,
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.leave = wlSurfaceLeaveHandler,
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};
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bool waylandWindowInit(const char * title, bool fullscreen, bool maximize, bool borderless)
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{
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wlWm.scale = 1;
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if (!wlWm.compositor)
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{
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DEBUG_ERROR("Compositor missing wl_compositor (version 3+), will not proceed");
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return false;
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}
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wlWm.surface = wl_compositor_create_surface(wlWm.compositor);
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if (!wlWm.surface)
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{
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DEBUG_ERROR("Failed to create wl_surface");
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return false;
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}
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wl_surface_add_listener(wlWm.surface, &wlSurfaceListener, NULL);
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if (!waylandShellInit(title, fullscreen, maximize, borderless))
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return false;
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wl_surface_commit(wlWm.surface);
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return true;
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}
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void waylandWindowFree(void)
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{
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wl_surface_destroy(wlWm.surface);
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}
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void waylandSetWindowSize(int x, int y)
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{
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// FIXME: implement.
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}
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bool waylandIsValidPointerPos(int x, int y)
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{
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return x >= 0 && x < wlWm.width && y >= 0 && y < wlWm.height;
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}
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