glfw/src/wl_window.c
Camilla Löwy b9ea733ca8 Move last bits of window setup to platform code
This avoids glfwCreateWindow emitting GLFW_PLATFORM_ERROR on Wayland
because shared code was calling unimplemented or unavailable platform
functions during final setup.

It also makes it consistent with the final setup of full screen windows.

This is adapted to 3.3-stable from
09653b8c54.
2022-06-10 17:11:01 +02:00

2817 lines
86 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

//========================================================================
// GLFW 3.3 Wayland - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
//
// 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.
//
//========================================================================
// It is fine to use C99 in this file because it will not be built with VS
//========================================================================
#define _GNU_SOURCE
#include "internal.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <assert.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/timerfd.h>
#include <poll.h>
#include <signal.h>
#include <time.h>
static void shellSurfaceHandlePing(void* data,
struct wl_shell_surface* shellSurface,
uint32_t serial)
{
wl_shell_surface_pong(shellSurface, serial);
}
static void shellSurfaceHandleConfigure(void* data,
struct wl_shell_surface* shellSurface,
uint32_t edges,
int32_t width,
int32_t height)
{
_GLFWwindow* window = data;
float aspectRatio;
float targetRatio;
if (!window->monitor)
{
if (_glfw.wl.viewporter && window->decorated)
{
width -= _GLFW_DECORATION_HORIZONTAL;
height -= _GLFW_DECORATION_VERTICAL;
}
if (width < 1)
width = 1;
if (height < 1)
height = 1;
if (window->numer != GLFW_DONT_CARE && window->denom != GLFW_DONT_CARE)
{
aspectRatio = (float)width / (float)height;
targetRatio = (float)window->numer / (float)window->denom;
if (aspectRatio < targetRatio)
height = width / targetRatio;
else if (aspectRatio > targetRatio)
width = height * targetRatio;
}
if (window->minwidth != GLFW_DONT_CARE && width < window->minwidth)
width = window->minwidth;
else if (window->maxwidth != GLFW_DONT_CARE && width > window->maxwidth)
width = window->maxwidth;
if (window->minheight != GLFW_DONT_CARE && height < window->minheight)
height = window->minheight;
else if (window->maxheight != GLFW_DONT_CARE && height > window->maxheight)
height = window->maxheight;
}
_glfwInputWindowSize(window, width, height);
_glfwPlatformSetWindowSize(window, width, height);
_glfwInputWindowDamage(window);
}
static void shellSurfaceHandlePopupDone(void* data,
struct wl_shell_surface* shellSurface)
{
}
static const struct wl_shell_surface_listener shellSurfaceListener = {
shellSurfaceHandlePing,
shellSurfaceHandleConfigure,
shellSurfaceHandlePopupDone
};
static int createTmpfileCloexec(char* tmpname)
{
int fd;
fd = mkostemp(tmpname, O_CLOEXEC);
if (fd >= 0)
unlink(tmpname);
return fd;
}
/*
* Create a new, unique, anonymous file of the given size, and
* return the file descriptor for it. The file descriptor is set
* CLOEXEC. The file is immediately suitable for mmap()'ing
* the given size at offset zero.
*
* The file should not have a permanent backing store like a disk,
* but may have if XDG_RUNTIME_DIR is not properly implemented in OS.
*
* The file name is deleted from the file system.
*
* The file is suitable for buffer sharing between processes by
* transmitting the file descriptor over Unix sockets using the
* SCM_RIGHTS methods.
*
* posix_fallocate() is used to guarantee that disk space is available
* for the file at the given size. If disk space is insufficient, errno
* is set to ENOSPC. If posix_fallocate() is not supported, program may
* receive SIGBUS on accessing mmap()'ed file contents instead.
*/
static int createAnonymousFile(off_t size)
{
static const char template[] = "/glfw-shared-XXXXXX";
const char* path;
char* name;
int fd;
int ret;
#ifdef HAVE_MEMFD_CREATE
fd = memfd_create("glfw-shared", MFD_CLOEXEC | MFD_ALLOW_SEALING);
if (fd >= 0)
{
// We can add this seal before calling posix_fallocate(), as the file
// is currently zero-sized anyway.
//
// There is also no need to check for the return value, we couldnt do
// anything with it anyway.
fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_SEAL);
}
else
#elif defined(SHM_ANON)
fd = shm_open(SHM_ANON, O_RDWR | O_CLOEXEC, 0600);
if (fd < 0)
#endif
{
path = getenv("XDG_RUNTIME_DIR");
if (!path)
{
errno = ENOENT;
return -1;
}
name = calloc(strlen(path) + sizeof(template), 1);
strcpy(name, path);
strcat(name, template);
fd = createTmpfileCloexec(name);
free(name);
if (fd < 0)
return -1;
}
#if defined(SHM_ANON)
// posix_fallocate does not work on SHM descriptors
ret = ftruncate(fd, size);
#else
ret = posix_fallocate(fd, 0, size);
#endif
if (ret != 0)
{
close(fd);
errno = ret;
return -1;
}
return fd;
}
static struct wl_buffer* createShmBuffer(const GLFWimage* image)
{
struct wl_shm_pool* pool;
struct wl_buffer* buffer;
int stride = image->width * 4;
int length = image->width * image->height * 4;
void* data;
int fd, i;
fd = createAnonymousFile(length);
if (fd < 0)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to create buffer file of size %d: %s",
length, strerror(errno));
return NULL;
}
data = mmap(NULL, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (data == MAP_FAILED)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to map file: %s", strerror(errno));
close(fd);
return NULL;
}
pool = wl_shm_create_pool(_glfw.wl.shm, fd, length);
close(fd);
unsigned char* source = (unsigned char*) image->pixels;
unsigned char* target = data;
for (i = 0; i < image->width * image->height; i++, source += 4)
{
unsigned int alpha = source[3];
*target++ = (unsigned char) ((source[2] * alpha) / 255);
*target++ = (unsigned char) ((source[1] * alpha) / 255);
*target++ = (unsigned char) ((source[0] * alpha) / 255);
*target++ = (unsigned char) alpha;
}
buffer =
wl_shm_pool_create_buffer(pool, 0,
image->width,
image->height,
stride, WL_SHM_FORMAT_ARGB8888);
munmap(data, length);
wl_shm_pool_destroy(pool);
return buffer;
}
// Wait for data to arrive on any of the specified file descriptors
//
static GLFWbool waitForData(struct pollfd* fds, nfds_t count, double* timeout)
{
for (;;)
{
if (timeout)
{
const uint64_t base = _glfwPlatformGetTimerValue();
#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__CYGWIN__)
const time_t seconds = (time_t) *timeout;
const long nanoseconds = (long) ((*timeout - seconds) * 1e9);
const struct timespec ts = { seconds, nanoseconds };
const int result = ppoll(fds, count, &ts, NULL);
#elif defined(__NetBSD__)
const time_t seconds = (time_t) *timeout;
const long nanoseconds = (long) ((*timeout - seconds) * 1e9);
const struct timespec ts = { seconds, nanoseconds };
const int result = pollts(fds, count, &ts, NULL);
#else
const int milliseconds = (int) (*timeout * 1e3);
const int result = poll(fds, count, milliseconds);
#endif
const int error = errno; // clock_gettime may overwrite our error
*timeout -= (_glfwPlatformGetTimerValue() - base) /
(double) _glfwPlatformGetTimerFrequency();
if (result > 0)
return GLFW_TRUE;
else if (result == -1 && error != EINTR && error != EAGAIN)
return GLFW_FALSE;
else if (*timeout <= 0.0)
return GLFW_FALSE;
}
else
{
const int result = poll(fds, count, -1);
if (result > 0)
return GLFW_TRUE;
else if (result == -1 && errno != EINTR && errno != EAGAIN)
return GLFW_FALSE;
}
}
}
static void createDecoration(_GLFWdecorationWayland* decoration,
struct wl_surface* parent,
struct wl_buffer* buffer, GLFWbool opaque,
int x, int y,
int width, int height)
{
struct wl_region* region;
decoration->surface = wl_compositor_create_surface(_glfw.wl.compositor);
decoration->subsurface =
wl_subcompositor_get_subsurface(_glfw.wl.subcompositor,
decoration->surface, parent);
wl_subsurface_set_position(decoration->subsurface, x, y);
decoration->viewport = wp_viewporter_get_viewport(_glfw.wl.viewporter,
decoration->surface);
wp_viewport_set_destination(decoration->viewport, width, height);
wl_surface_attach(decoration->surface, buffer, 0, 0);
if (opaque)
{
region = wl_compositor_create_region(_glfw.wl.compositor);
wl_region_add(region, 0, 0, width, height);
wl_surface_set_opaque_region(decoration->surface, region);
wl_surface_commit(decoration->surface);
wl_region_destroy(region);
}
else
wl_surface_commit(decoration->surface);
}
static void createDecorations(_GLFWwindow* window)
{
unsigned char data[] = { 224, 224, 224, 255 };
const GLFWimage image = { 1, 1, data };
GLFWbool opaque = (data[3] == 255);
if (!_glfw.wl.viewporter || !window->decorated || window->wl.decorations.serverSide)
return;
if (!window->wl.decorations.buffer)
window->wl.decorations.buffer = createShmBuffer(&image);
if (!window->wl.decorations.buffer)
return;
createDecoration(&window->wl.decorations.top, window->wl.surface,
window->wl.decorations.buffer, opaque,
0, -_GLFW_DECORATION_TOP,
window->wl.width, _GLFW_DECORATION_TOP);
createDecoration(&window->wl.decorations.left, window->wl.surface,
window->wl.decorations.buffer, opaque,
-_GLFW_DECORATION_WIDTH, -_GLFW_DECORATION_TOP,
_GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
createDecoration(&window->wl.decorations.right, window->wl.surface,
window->wl.decorations.buffer, opaque,
window->wl.width, -_GLFW_DECORATION_TOP,
_GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
createDecoration(&window->wl.decorations.bottom, window->wl.surface,
window->wl.decorations.buffer, opaque,
-_GLFW_DECORATION_WIDTH, window->wl.height,
window->wl.width + _GLFW_DECORATION_HORIZONTAL, _GLFW_DECORATION_WIDTH);
}
static void destroyDecoration(_GLFWdecorationWayland* decoration)
{
if (decoration->subsurface)
wl_subsurface_destroy(decoration->subsurface);
if (decoration->surface)
wl_surface_destroy(decoration->surface);
if (decoration->viewport)
wp_viewport_destroy(decoration->viewport);
decoration->surface = NULL;
decoration->subsurface = NULL;
decoration->viewport = NULL;
}
static void destroyDecorations(_GLFWwindow* window)
{
destroyDecoration(&window->wl.decorations.top);
destroyDecoration(&window->wl.decorations.left);
destroyDecoration(&window->wl.decorations.right);
destroyDecoration(&window->wl.decorations.bottom);
}
static void xdgDecorationHandleConfigure(void* userData,
struct zxdg_toplevel_decoration_v1* decoration,
uint32_t mode)
{
_GLFWwindow* window = userData;
window->wl.decorations.serverSide = (mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE);
if (!window->wl.decorations.serverSide)
createDecorations(window);
}
static const struct zxdg_toplevel_decoration_v1_listener xdgDecorationListener =
{
xdgDecorationHandleConfigure,
};
// Makes the surface considered as XRGB instead of ARGB.
static void setOpaqueRegion(_GLFWwindow* window)
{
struct wl_region* region;
region = wl_compositor_create_region(_glfw.wl.compositor);
if (!region)
return;
wl_region_add(region, 0, 0, window->wl.width, window->wl.height);
wl_surface_set_opaque_region(window->wl.surface, region);
wl_surface_commit(window->wl.surface);
wl_region_destroy(region);
}
static void resizeWindow(_GLFWwindow* window)
{
int scale = window->wl.scale;
int scaledWidth = window->wl.width * scale;
int scaledHeight = window->wl.height * scale;
wl_egl_window_resize(window->wl.native, scaledWidth, scaledHeight, 0, 0);
if (!window->wl.transparent)
setOpaqueRegion(window);
_glfwInputFramebufferSize(window, scaledWidth, scaledHeight);
_glfwInputWindowContentScale(window, scale, scale);
if (!window->wl.decorations.top.surface)
return;
// Top decoration.
wp_viewport_set_destination(window->wl.decorations.top.viewport,
window->wl.width, _GLFW_DECORATION_TOP);
wl_surface_commit(window->wl.decorations.top.surface);
// Left decoration.
wp_viewport_set_destination(window->wl.decorations.left.viewport,
_GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
wl_surface_commit(window->wl.decorations.left.surface);
// Right decoration.
wl_subsurface_set_position(window->wl.decorations.right.subsurface,
window->wl.width, -_GLFW_DECORATION_TOP);
wp_viewport_set_destination(window->wl.decorations.right.viewport,
_GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
wl_surface_commit(window->wl.decorations.right.surface);
// Bottom decoration.
wl_subsurface_set_position(window->wl.decorations.bottom.subsurface,
-_GLFW_DECORATION_WIDTH, window->wl.height);
wp_viewport_set_destination(window->wl.decorations.bottom.viewport,
window->wl.width + _GLFW_DECORATION_HORIZONTAL, _GLFW_DECORATION_WIDTH);
wl_surface_commit(window->wl.decorations.bottom.surface);
}
static void checkScaleChange(_GLFWwindow* window)
{
// Check if we will be able to set the buffer scale or not.
if (_glfw.wl.compositorVersion < 3)
return;
// Get the scale factor from the highest scale monitor.
int maxScale = 1;
for (int i = 0; i < window->wl.monitorsCount; i++)
maxScale = _glfw_max(window->wl.monitors[i]->wl.scale, maxScale);
// Only change the framebuffer size if the scale changed.
if (window->wl.scale != maxScale)
{
window->wl.scale = maxScale;
wl_surface_set_buffer_scale(window->wl.surface, maxScale);
resizeWindow(window);
}
}
static void surfaceHandleEnter(void* userData,
struct wl_surface* surface,
struct wl_output* output)
{
_GLFWwindow* window = userData;
_GLFWmonitor* monitor = wl_output_get_user_data(output);
if (window->wl.monitorsCount + 1 > window->wl.monitorsSize)
{
++window->wl.monitorsSize;
window->wl.monitors =
realloc(window->wl.monitors,
window->wl.monitorsSize * sizeof(_GLFWmonitor*));
}
window->wl.monitors[window->wl.monitorsCount++] = monitor;
checkScaleChange(window);
}
static void surfaceHandleLeave(void* userData,
struct wl_surface* surface,
struct wl_output* output)
{
_GLFWwindow* window = userData;
_GLFWmonitor* monitor = wl_output_get_user_data(output);
GLFWbool found;
int i;
for (i = 0, found = GLFW_FALSE; i < window->wl.monitorsCount - 1; ++i)
{
if (monitor == window->wl.monitors[i])
found = GLFW_TRUE;
if (found)
window->wl.monitors[i] = window->wl.monitors[i + 1];
}
window->wl.monitors[--window->wl.monitorsCount] = NULL;
checkScaleChange(window);
}
static const struct wl_surface_listener surfaceListener = {
surfaceHandleEnter,
surfaceHandleLeave
};
static void setIdleInhibitor(_GLFWwindow* window, GLFWbool enable)
{
if (enable && !window->wl.idleInhibitor && _glfw.wl.idleInhibitManager)
{
window->wl.idleInhibitor =
zwp_idle_inhibit_manager_v1_create_inhibitor(
_glfw.wl.idleInhibitManager, window->wl.surface);
if (!window->wl.idleInhibitor)
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to create idle inhibitor");
}
else if (!enable && window->wl.idleInhibitor)
{
zwp_idle_inhibitor_v1_destroy(window->wl.idleInhibitor);
window->wl.idleInhibitor = NULL;
}
}
static void setFullscreen(_GLFWwindow* window, _GLFWmonitor* monitor,
int refreshRate)
{
if (window->wl.xdg.toplevel)
{
xdg_toplevel_set_fullscreen(
window->wl.xdg.toplevel,
monitor->wl.output);
}
else if (window->wl.shellSurface)
{
wl_shell_surface_set_fullscreen(
window->wl.shellSurface,
WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,
refreshRate * 1000, // Convert Hz to mHz.
monitor->wl.output);
}
setIdleInhibitor(window, GLFW_TRUE);
if (!window->wl.decorations.serverSide)
destroyDecorations(window);
}
static GLFWbool createShellSurface(_GLFWwindow* window)
{
if (!_glfw.wl.shell)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: wl_shell protocol not available");
return GLFW_FALSE;
}
window->wl.shellSurface = wl_shell_get_shell_surface(_glfw.wl.shell,
window->wl.surface);
if (!window->wl.shellSurface)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Shell surface creation failed");
return GLFW_FALSE;
}
wl_shell_surface_add_listener(window->wl.shellSurface,
&shellSurfaceListener,
window);
if (window->wl.title)
wl_shell_surface_set_title(window->wl.shellSurface, window->wl.title);
if (window->monitor)
{
setFullscreen(window, window->monitor, 0);
}
else if (window->wl.maximized)
{
wl_shell_surface_set_maximized(window->wl.shellSurface, NULL);
setIdleInhibitor(window, GLFW_FALSE);
createDecorations(window);
}
else
{
wl_shell_surface_set_toplevel(window->wl.shellSurface);
setIdleInhibitor(window, GLFW_FALSE);
createDecorations(window);
}
wl_surface_commit(window->wl.surface);
return GLFW_TRUE;
}
static void xdgToplevelHandleConfigure(void* userData,
struct xdg_toplevel* toplevel,
int32_t width,
int32_t height,
struct wl_array* states)
{
_GLFWwindow* window = userData;
float aspectRatio;
float targetRatio;
uint32_t* state;
GLFWbool maximized = GLFW_FALSE;
GLFWbool fullscreen = GLFW_FALSE;
GLFWbool activated = GLFW_FALSE;
wl_array_for_each(state, states)
{
switch (*state)
{
case XDG_TOPLEVEL_STATE_MAXIMIZED:
maximized = GLFW_TRUE;
break;
case XDG_TOPLEVEL_STATE_FULLSCREEN:
fullscreen = GLFW_TRUE;
break;
case XDG_TOPLEVEL_STATE_RESIZING:
break;
case XDG_TOPLEVEL_STATE_ACTIVATED:
activated = GLFW_TRUE;
break;
}
}
if (width != 0 && height != 0)
{
if (!maximized && !fullscreen)
{
if (window->numer != GLFW_DONT_CARE && window->denom != GLFW_DONT_CARE)
{
aspectRatio = (float)width / (float)height;
targetRatio = (float)window->numer / (float)window->denom;
if (aspectRatio < targetRatio)
height = width / targetRatio;
else if (aspectRatio > targetRatio)
width = height * targetRatio;
}
}
_glfwInputWindowSize(window, width, height);
_glfwPlatformSetWindowSize(window, width, height);
_glfwInputWindowDamage(window);
}
if (window->wl.wasFullscreen && window->autoIconify)
{
if (!activated || !fullscreen)
{
_glfwPlatformIconifyWindow(window);
window->wl.wasFullscreen = GLFW_FALSE;
}
}
if (fullscreen && activated)
window->wl.wasFullscreen = GLFW_TRUE;
}
static void xdgToplevelHandleClose(void* userData,
struct xdg_toplevel* toplevel)
{
_GLFWwindow* window = userData;
_glfwInputWindowCloseRequest(window);
}
static const struct xdg_toplevel_listener xdgToplevelListener =
{
xdgToplevelHandleConfigure,
xdgToplevelHandleClose
};
static void xdgSurfaceHandleConfigure(void* userData,
struct xdg_surface* surface,
uint32_t serial)
{
xdg_surface_ack_configure(surface, serial);
}
static const struct xdg_surface_listener xdgSurfaceListener = {
xdgSurfaceHandleConfigure
};
static void setXdgDecorations(_GLFWwindow* window)
{
if (_glfw.wl.decorationManager)
{
window->wl.xdg.decoration =
zxdg_decoration_manager_v1_get_toplevel_decoration(
_glfw.wl.decorationManager, window->wl.xdg.toplevel);
zxdg_toplevel_decoration_v1_add_listener(window->wl.xdg.decoration,
&xdgDecorationListener,
window);
zxdg_toplevel_decoration_v1_set_mode(
window->wl.xdg.decoration,
ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE);
}
else
{
window->wl.decorations.serverSide = GLFW_FALSE;
createDecorations(window);
}
}
static GLFWbool createXdgSurface(_GLFWwindow* window)
{
window->wl.xdg.surface = xdg_wm_base_get_xdg_surface(_glfw.wl.wmBase,
window->wl.surface);
if (!window->wl.xdg.surface)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to create xdg-surface for window");
return GLFW_FALSE;
}
xdg_surface_add_listener(window->wl.xdg.surface,
&xdgSurfaceListener,
window);
window->wl.xdg.toplevel = xdg_surface_get_toplevel(window->wl.xdg.surface);
if (!window->wl.xdg.toplevel)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to create xdg-toplevel for window");
return GLFW_FALSE;
}
xdg_toplevel_add_listener(window->wl.xdg.toplevel,
&xdgToplevelListener,
window);
if (window->wl.title)
xdg_toplevel_set_title(window->wl.xdg.toplevel, window->wl.title);
if (window->minwidth != GLFW_DONT_CARE && window->minheight != GLFW_DONT_CARE)
xdg_toplevel_set_min_size(window->wl.xdg.toplevel,
window->minwidth, window->minheight);
if (window->maxwidth != GLFW_DONT_CARE && window->maxheight != GLFW_DONT_CARE)
xdg_toplevel_set_max_size(window->wl.xdg.toplevel,
window->maxwidth, window->maxheight);
if (window->monitor)
{
xdg_toplevel_set_fullscreen(window->wl.xdg.toplevel,
window->monitor->wl.output);
setIdleInhibitor(window, GLFW_TRUE);
}
else if (window->wl.maximized)
{
xdg_toplevel_set_maximized(window->wl.xdg.toplevel);
setIdleInhibitor(window, GLFW_FALSE);
setXdgDecorations(window);
}
else
{
setIdleInhibitor(window, GLFW_FALSE);
setXdgDecorations(window);
}
wl_surface_commit(window->wl.surface);
wl_display_roundtrip(_glfw.wl.display);
return GLFW_TRUE;
}
static GLFWbool createSurface(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig,
const _GLFWfbconfig* fbconfig)
{
window->wl.surface = wl_compositor_create_surface(_glfw.wl.compositor);
if (!window->wl.surface)
return GLFW_FALSE;
wl_surface_add_listener(window->wl.surface,
&surfaceListener,
window);
wl_surface_set_user_data(window->wl.surface, window);
window->wl.native = wl_egl_window_create(window->wl.surface,
wndconfig->width,
wndconfig->height);
if (!window->wl.native)
return GLFW_FALSE;
window->wl.width = wndconfig->width;
window->wl.height = wndconfig->height;
window->wl.scale = 1;
window->wl.title = _glfw_strdup(wndconfig->title);
window->wl.transparent = fbconfig->transparent;
if (!window->wl.transparent)
setOpaqueRegion(window);
if (window->monitor || wndconfig->visible)
{
if (!createXdgSurface(window))
return GLFW_FALSE;
window->wl.visible = GLFW_TRUE;
}
return GLFW_TRUE;
}
static void setCursorImage(_GLFWwindow* window,
_GLFWcursorWayland* cursorWayland)
{
struct itimerspec timer = {};
struct wl_cursor* wlCursor = cursorWayland->cursor;
struct wl_cursor_image* image;
struct wl_buffer* buffer;
struct wl_surface* surface = _glfw.wl.cursorSurface;
int scale = 1;
if (!wlCursor)
buffer = cursorWayland->buffer;
else
{
if (window->wl.scale > 1 && cursorWayland->cursorHiDPI)
{
wlCursor = cursorWayland->cursorHiDPI;
scale = 2;
}
image = wlCursor->images[cursorWayland->currentImage];
buffer = wl_cursor_image_get_buffer(image);
if (!buffer)
return;
timer.it_value.tv_sec = image->delay / 1000;
timer.it_value.tv_nsec = (image->delay % 1000) * 1000000;
timerfd_settime(_glfw.wl.cursorTimerfd, 0, &timer, NULL);
cursorWayland->width = image->width;
cursorWayland->height = image->height;
cursorWayland->xhot = image->hotspot_x;
cursorWayland->yhot = image->hotspot_y;
}
wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerEnterSerial,
surface,
cursorWayland->xhot / scale,
cursorWayland->yhot / scale);
wl_surface_set_buffer_scale(surface, scale);
wl_surface_attach(surface, buffer, 0, 0);
wl_surface_damage(surface, 0, 0,
cursorWayland->width, cursorWayland->height);
wl_surface_commit(surface);
}
static void incrementCursorImage(_GLFWwindow* window)
{
_GLFWcursor* cursor;
if (!window || window->wl.decorations.focus != mainWindow)
return;
cursor = window->wl.currentCursor;
if (cursor && cursor->wl.cursor)
{
cursor->wl.currentImage += 1;
cursor->wl.currentImage %= cursor->wl.cursor->image_count;
setCursorImage(window, &cursor->wl);
}
}
static GLFWbool flushDisplay(void)
{
while (wl_display_flush(_glfw.wl.display) == -1)
{
if (errno != EAGAIN)
return GLFW_FALSE;
struct pollfd fd = { wl_display_get_fd(_glfw.wl.display), POLLOUT };
while (poll(&fd, 1, -1) == -1)
{
if (errno != EINTR && errno != EAGAIN)
return GLFW_FALSE;
}
}
return GLFW_TRUE;
}
static void handleEvents(double* timeout)
{
GLFWbool event = GLFW_FALSE;
struct pollfd fds[] =
{
{ wl_display_get_fd(_glfw.wl.display), POLLIN },
{ _glfw.wl.timerfd, POLLIN },
{ _glfw.wl.cursorTimerfd, POLLIN },
};
while (!event)
{
while (wl_display_prepare_read(_glfw.wl.display) != 0)
wl_display_dispatch_pending(_glfw.wl.display);
// If an error other than EAGAIN happens, we have likely been disconnected
// from the Wayland session; try to handle that the best we can.
if (!flushDisplay())
{
wl_display_cancel_read(_glfw.wl.display);
_GLFWwindow* window = _glfw.windowListHead;
while (window)
{
_glfwInputWindowCloseRequest(window);
window = window->next;
}
return;
}
if (!waitForData(fds, 3, timeout))
{
wl_display_cancel_read(_glfw.wl.display);
return;
}
if (fds[0].revents & POLLIN)
{
wl_display_read_events(_glfw.wl.display);
if (wl_display_dispatch_pending(_glfw.wl.display) > 0)
event = GLFW_TRUE;
}
else
wl_display_cancel_read(_glfw.wl.display);
if (fds[1].revents & POLLIN)
{
uint64_t repeats;
if (read(_glfw.wl.timerfd, &repeats, sizeof(repeats)) == 8)
{
for (uint64_t i = 0; i < repeats; i++)
{
_glfwInputKey(_glfw.wl.keyboardFocus,
_glfw.wl.keyboardLastKey,
_glfw.wl.keyboardLastScancode,
GLFW_PRESS,
_glfw.wl.xkb.modifiers);
_glfwInputTextWayland(_glfw.wl.keyboardFocus,
_glfw.wl.keyboardLastScancode);
}
event = GLFW_TRUE;
}
}
if (fds[2].revents & POLLIN)
{
uint64_t repeats;
if (read(_glfw.wl.cursorTimerfd, &repeats, sizeof(repeats)) == 8)
{
incrementCursorImage(_glfw.wl.pointerFocus);
event = GLFW_TRUE;
}
}
}
}
// Reads the specified data offer as the specified MIME type
//
static char* readDataOfferAsString(struct wl_data_offer* offer, const char* mimeType)
{
int fds[2];
if (pipe2(fds, O_CLOEXEC) == -1)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to create pipe for data offer: %s",
strerror(errno));
return NULL;
}
wl_data_offer_receive(offer, mimeType, fds[1]);
flushDisplay();
close(fds[1]);
char* string = NULL;
size_t size = 0;
size_t length = 0;
for (;;)
{
const size_t readSize = 4096;
const size_t requiredSize = length + readSize + 1;
if (requiredSize > size)
{
char* longer = realloc(string, requiredSize);
if (!longer)
{
_glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
close(fds[0]);
return NULL;
}
string = longer;
size = requiredSize;
}
const ssize_t result = read(fds[0], string + length, readSize);
if (result == 0)
break;
else if (result == -1)
{
if (errno == EINTR)
continue;
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to read from data offer pipe: %s",
strerror(errno));
close(fds[0]);
return NULL;
}
length += result;
}
close(fds[0]);
string[length] = '\0';
return string;
}
static _GLFWwindow* findWindowFromDecorationSurface(struct wl_surface* surface,
int* which)
{
int focus;
_GLFWwindow* window = _glfw.windowListHead;
if (!which)
which = &focus;
while (window)
{
if (surface == window->wl.decorations.top.surface)
{
*which = topDecoration;
break;
}
if (surface == window->wl.decorations.left.surface)
{
*which = leftDecoration;
break;
}
if (surface == window->wl.decorations.right.surface)
{
*which = rightDecoration;
break;
}
if (surface == window->wl.decorations.bottom.surface)
{
*which = bottomDecoration;
break;
}
window = window->next;
}
return window;
}
static void pointerHandleEnter(void* userData,
struct wl_pointer* pointer,
uint32_t serial,
struct wl_surface* surface,
wl_fixed_t sx,
wl_fixed_t sy)
{
// Happens in the case we just destroyed the surface.
if (!surface)
return;
int focus = 0;
_GLFWwindow* window = wl_surface_get_user_data(surface);
if (!window)
{
window = findWindowFromDecorationSurface(surface, &focus);
if (!window)
return;
}
window->wl.decorations.focus = focus;
_glfw.wl.serial = serial;
_glfw.wl.pointerEnterSerial = serial;
_glfw.wl.pointerFocus = window;
window->wl.hovered = GLFW_TRUE;
_glfwPlatformSetCursor(window, window->wl.currentCursor);
_glfwInputCursorEnter(window, GLFW_TRUE);
}
static void pointerHandleLeave(void* userData,
struct wl_pointer* pointer,
uint32_t serial,
struct wl_surface* surface)
{
_GLFWwindow* window = _glfw.wl.pointerFocus;
if (!window)
return;
window->wl.hovered = GLFW_FALSE;
_glfw.wl.serial = serial;
_glfw.wl.pointerFocus = NULL;
_glfwInputCursorEnter(window, GLFW_FALSE);
_glfw.wl.cursorPreviousName = NULL;
}
static void setCursor(_GLFWwindow* window, const char* name)
{
struct wl_buffer* buffer;
struct wl_cursor* cursor;
struct wl_cursor_image* image;
struct wl_surface* surface = _glfw.wl.cursorSurface;
struct wl_cursor_theme* theme = _glfw.wl.cursorTheme;
int scale = 1;
if (window->wl.scale > 1 && _glfw.wl.cursorThemeHiDPI)
{
// We only support up to scale=2 for now, since libwayland-cursor
// requires us to load a different theme for each size.
scale = 2;
theme = _glfw.wl.cursorThemeHiDPI;
}
cursor = wl_cursor_theme_get_cursor(theme, name);
if (!cursor)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Standard cursor shape unavailable");
return;
}
// TODO: handle animated cursors too.
image = cursor->images[0];
if (!image)
return;
buffer = wl_cursor_image_get_buffer(image);
if (!buffer)
return;
wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerEnterSerial,
surface,
image->hotspot_x / scale,
image->hotspot_y / scale);
wl_surface_set_buffer_scale(surface, scale);
wl_surface_attach(surface, buffer, 0, 0);
wl_surface_damage(surface, 0, 0,
image->width, image->height);
wl_surface_commit(surface);
_glfw.wl.cursorPreviousName = name;
}
static void pointerHandleMotion(void* userData,
struct wl_pointer* pointer,
uint32_t time,
wl_fixed_t sx,
wl_fixed_t sy)
{
_GLFWwindow* window = _glfw.wl.pointerFocus;
const char* cursorName = NULL;
double x, y;
if (!window)
return;
if (window->cursorMode == GLFW_CURSOR_DISABLED)
return;
x = wl_fixed_to_double(sx);
y = wl_fixed_to_double(sy);
window->wl.cursorPosX = x;
window->wl.cursorPosY = y;
switch (window->wl.decorations.focus)
{
case mainWindow:
_glfwInputCursorPos(window, x, y);
_glfw.wl.cursorPreviousName = NULL;
return;
case topDecoration:
if (y < _GLFW_DECORATION_WIDTH)
cursorName = "n-resize";
else
cursorName = "left_ptr";
break;
case leftDecoration:
if (y < _GLFW_DECORATION_WIDTH)
cursorName = "nw-resize";
else
cursorName = "w-resize";
break;
case rightDecoration:
if (y < _GLFW_DECORATION_WIDTH)
cursorName = "ne-resize";
else
cursorName = "e-resize";
break;
case bottomDecoration:
if (x < _GLFW_DECORATION_WIDTH)
cursorName = "sw-resize";
else if (x > window->wl.width + _GLFW_DECORATION_WIDTH)
cursorName = "se-resize";
else
cursorName = "s-resize";
break;
default:
assert(0);
}
if (_glfw.wl.cursorPreviousName != cursorName)
setCursor(window, cursorName);
}
static void pointerHandleButton(void* userData,
struct wl_pointer* pointer,
uint32_t serial,
uint32_t time,
uint32_t button,
uint32_t state)
{
_GLFWwindow* window = _glfw.wl.pointerFocus;
int glfwButton;
// Both xdg-shell and wl_shell use the same values.
uint32_t edges = WL_SHELL_SURFACE_RESIZE_NONE;
if (!window)
return;
if (button == BTN_LEFT)
{
switch (window->wl.decorations.focus)
{
case mainWindow:
break;
case topDecoration:
if (window->wl.cursorPosY < _GLFW_DECORATION_WIDTH)
edges = WL_SHELL_SURFACE_RESIZE_TOP;
else
{
if (window->wl.xdg.toplevel)
xdg_toplevel_move(window->wl.xdg.toplevel, _glfw.wl.seat, serial);
else
wl_shell_surface_move(window->wl.shellSurface, _glfw.wl.seat, serial);
}
break;
case leftDecoration:
if (window->wl.cursorPosY < _GLFW_DECORATION_WIDTH)
edges = WL_SHELL_SURFACE_RESIZE_TOP_LEFT;
else
edges = WL_SHELL_SURFACE_RESIZE_LEFT;
break;
case rightDecoration:
if (window->wl.cursorPosY < _GLFW_DECORATION_WIDTH)
edges = WL_SHELL_SURFACE_RESIZE_TOP_RIGHT;
else
edges = WL_SHELL_SURFACE_RESIZE_RIGHT;
break;
case bottomDecoration:
if (window->wl.cursorPosX < _GLFW_DECORATION_WIDTH)
edges = WL_SHELL_SURFACE_RESIZE_BOTTOM_LEFT;
else if (window->wl.cursorPosX > window->wl.width + _GLFW_DECORATION_WIDTH)
edges = WL_SHELL_SURFACE_RESIZE_BOTTOM_RIGHT;
else
edges = WL_SHELL_SURFACE_RESIZE_BOTTOM;
break;
default:
assert(0);
}
if (edges != WL_SHELL_SURFACE_RESIZE_NONE)
{
if (window->wl.xdg.toplevel)
xdg_toplevel_resize(window->wl.xdg.toplevel, _glfw.wl.seat,
serial, edges);
else
wl_shell_surface_resize(window->wl.shellSurface, _glfw.wl.seat,
serial, edges);
return;
}
}
else if (button == BTN_RIGHT)
{
if (window->wl.decorations.focus != mainWindow && window->wl.xdg.toplevel)
{
xdg_toplevel_show_window_menu(window->wl.xdg.toplevel,
_glfw.wl.seat, serial,
window->wl.cursorPosX,
window->wl.cursorPosY);
return;
}
}
// Dont pass the button to the user if it was related to a decoration.
if (window->wl.decorations.focus != mainWindow)
return;
_glfw.wl.serial = serial;
/* Makes left, right and middle 0, 1 and 2. Overall order follows evdev
* codes. */
glfwButton = button - BTN_LEFT;
_glfwInputMouseClick(window,
glfwButton,
state == WL_POINTER_BUTTON_STATE_PRESSED
? GLFW_PRESS
: GLFW_RELEASE,
_glfw.wl.xkb.modifiers);
}
static void pointerHandleAxis(void* userData,
struct wl_pointer* pointer,
uint32_t time,
uint32_t axis,
wl_fixed_t value)
{
_GLFWwindow* window = _glfw.wl.pointerFocus;
double x = 0.0, y = 0.0;
// Wayland scroll events are in pointer motion coordinate space (think two
// finger scroll). The factor 10 is commonly used to convert to "scroll
// step means 1.0.
const double scrollFactor = 1.0 / 10.0;
if (!window)
return;
assert(axis == WL_POINTER_AXIS_HORIZONTAL_SCROLL ||
axis == WL_POINTER_AXIS_VERTICAL_SCROLL);
if (axis == WL_POINTER_AXIS_HORIZONTAL_SCROLL)
x = -wl_fixed_to_double(value) * scrollFactor;
else if (axis == WL_POINTER_AXIS_VERTICAL_SCROLL)
y = -wl_fixed_to_double(value) * scrollFactor;
_glfwInputScroll(window, x, y);
}
static const struct wl_pointer_listener pointerListener =
{
pointerHandleEnter,
pointerHandleLeave,
pointerHandleMotion,
pointerHandleButton,
pointerHandleAxis,
};
static void keyboardHandleKeymap(void* userData,
struct wl_keyboard* keyboard,
uint32_t format,
int fd,
uint32_t size)
{
struct xkb_keymap* keymap;
struct xkb_state* state;
struct xkb_compose_table* composeTable;
struct xkb_compose_state* composeState;
char* mapStr;
const char* locale;
if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1)
{
close(fd);
return;
}
mapStr = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
if (mapStr == MAP_FAILED) {
close(fd);
return;
}
keymap = xkb_keymap_new_from_string(_glfw.wl.xkb.context,
mapStr,
XKB_KEYMAP_FORMAT_TEXT_V1,
0);
munmap(mapStr, size);
close(fd);
if (!keymap)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to compile keymap");
return;
}
state = xkb_state_new(keymap);
if (!state)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to create XKB state");
xkb_keymap_unref(keymap);
return;
}
// Look up the preferred locale, falling back to "C" as default.
locale = getenv("LC_ALL");
if (!locale)
locale = getenv("LC_CTYPE");
if (!locale)
locale = getenv("LANG");
if (!locale)
locale = "C";
composeTable =
xkb_compose_table_new_from_locale(_glfw.wl.xkb.context, locale,
XKB_COMPOSE_COMPILE_NO_FLAGS);
if (composeTable)
{
composeState =
xkb_compose_state_new(composeTable, XKB_COMPOSE_STATE_NO_FLAGS);
xkb_compose_table_unref(composeTable);
if (composeState)
_glfw.wl.xkb.composeState = composeState;
else
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to create XKB compose state");
}
else
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to create XKB compose table");
}
xkb_keymap_unref(_glfw.wl.xkb.keymap);
xkb_state_unref(_glfw.wl.xkb.state);
_glfw.wl.xkb.keymap = keymap;
_glfw.wl.xkb.state = state;
_glfw.wl.xkb.controlMask =
1 << xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Control");
_glfw.wl.xkb.altMask =
1 << xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Mod1");
_glfw.wl.xkb.shiftMask =
1 << xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Shift");
_glfw.wl.xkb.superMask =
1 << xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Mod4");
_glfw.wl.xkb.capsLockMask =
1 << xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Lock");
_glfw.wl.xkb.numLockMask =
1 << xkb_keymap_mod_get_index(_glfw.wl.xkb.keymap, "Mod2");
}
static void keyboardHandleEnter(void* userData,
struct wl_keyboard* keyboard,
uint32_t serial,
struct wl_surface* surface,
struct wl_array* keys)
{
// Happens in the case we just destroyed the surface.
if (!surface)
return;
_GLFWwindow* window = wl_surface_get_user_data(surface);
if (!window)
{
window = findWindowFromDecorationSurface(surface, NULL);
if (!window)
return;
}
_glfw.wl.serial = serial;
_glfw.wl.keyboardFocus = window;
_glfwInputWindowFocus(window, GLFW_TRUE);
}
static void keyboardHandleLeave(void* userData,
struct wl_keyboard* keyboard,
uint32_t serial,
struct wl_surface* surface)
{
_GLFWwindow* window = _glfw.wl.keyboardFocus;
if (!window)
return;
struct itimerspec timer = {};
timerfd_settime(_glfw.wl.timerfd, 0, &timer, NULL);
_glfw.wl.serial = serial;
_glfw.wl.keyboardFocus = NULL;
_glfwInputWindowFocus(window, GLFW_FALSE);
}
static int translateKey(uint32_t scancode)
{
if (scancode < sizeof(_glfw.wl.keycodes) / sizeof(_glfw.wl.keycodes[0]))
return _glfw.wl.keycodes[scancode];
return GLFW_KEY_UNKNOWN;
}
static xkb_keysym_t composeSymbol(xkb_keysym_t sym)
{
if (sym == XKB_KEY_NoSymbol || !_glfw.wl.xkb.composeState)
return sym;
if (xkb_compose_state_feed(_glfw.wl.xkb.composeState, sym)
!= XKB_COMPOSE_FEED_ACCEPTED)
return sym;
switch (xkb_compose_state_get_status(_glfw.wl.xkb.composeState))
{
case XKB_COMPOSE_COMPOSED:
return xkb_compose_state_get_one_sym(_glfw.wl.xkb.composeState);
case XKB_COMPOSE_COMPOSING:
case XKB_COMPOSE_CANCELLED:
return XKB_KEY_NoSymbol;
case XKB_COMPOSE_NOTHING:
default:
return sym;
}
}
GLFWbool _glfwInputTextWayland(_GLFWwindow* window, uint32_t scancode)
{
const xkb_keysym_t* keysyms;
const xkb_keycode_t keycode = scancode + 8;
if (xkb_state_key_get_syms(_glfw.wl.xkb.state, keycode, &keysyms) == 1)
{
const xkb_keysym_t keysym = composeSymbol(keysyms[0]);
const uint32_t codepoint = _glfwKeySym2Unicode(keysym);
if (codepoint != GLFW_INVALID_CODEPOINT)
{
const int mods = _glfw.wl.xkb.modifiers;
const int plain = !(mods & (GLFW_MOD_CONTROL | GLFW_MOD_ALT));
_glfwInputChar(window, codepoint, mods, plain);
}
}
return xkb_keymap_key_repeats(_glfw.wl.xkb.keymap, keycode);
}
static void keyboardHandleKey(void* userData,
struct wl_keyboard* keyboard,
uint32_t serial,
uint32_t time,
uint32_t scancode,
uint32_t state)
{
_GLFWwindow* window = _glfw.wl.keyboardFocus;
if (!window)
return;
const int key = translateKey(scancode);
const int action =
state == WL_KEYBOARD_KEY_STATE_PRESSED ? GLFW_PRESS : GLFW_RELEASE;
_glfw.wl.serial = serial;
_glfwInputKey(window, key, scancode, action, _glfw.wl.xkb.modifiers);
struct itimerspec timer = {};
if (action == GLFW_PRESS)
{
const GLFWbool shouldRepeat = _glfwInputTextWayland(window, scancode);
if (shouldRepeat && _glfw.wl.keyboardRepeatRate > 0)
{
_glfw.wl.keyboardLastKey = key;
_glfw.wl.keyboardLastScancode = scancode;
if (_glfw.wl.keyboardRepeatRate > 1)
timer.it_interval.tv_nsec = 1000000000 / _glfw.wl.keyboardRepeatRate;
else
timer.it_interval.tv_sec = 1;
timer.it_value.tv_sec = _glfw.wl.keyboardRepeatDelay / 1000;
timer.it_value.tv_nsec = (_glfw.wl.keyboardRepeatDelay % 1000) * 1000000;
}
}
timerfd_settime(_glfw.wl.timerfd, 0, &timer, NULL);
}
static void keyboardHandleModifiers(void* userData,
struct wl_keyboard* keyboard,
uint32_t serial,
uint32_t modsDepressed,
uint32_t modsLatched,
uint32_t modsLocked,
uint32_t group)
{
_glfw.wl.serial = serial;
if (!_glfw.wl.xkb.keymap)
return;
xkb_state_update_mask(_glfw.wl.xkb.state,
modsDepressed,
modsLatched,
modsLocked,
0,
0,
group);
const xkb_mod_mask_t mask =
xkb_state_serialize_mods(_glfw.wl.xkb.state,
XKB_STATE_MODS_DEPRESSED |
XKB_STATE_LAYOUT_DEPRESSED |
XKB_STATE_MODS_LATCHED |
XKB_STATE_LAYOUT_LATCHED);
unsigned int mods = 0;
if (mask & _glfw.wl.xkb.controlMask)
mods |= GLFW_MOD_CONTROL;
if (mask & _glfw.wl.xkb.altMask)
mods |= GLFW_MOD_ALT;
if (mask & _glfw.wl.xkb.shiftMask)
mods |= GLFW_MOD_SHIFT;
if (mask & _glfw.wl.xkb.superMask)
mods |= GLFW_MOD_SUPER;
if (mask & _glfw.wl.xkb.capsLockMask)
mods |= GLFW_MOD_CAPS_LOCK;
if (mask & _glfw.wl.xkb.numLockMask)
mods |= GLFW_MOD_NUM_LOCK;
_glfw.wl.xkb.modifiers = mods;
}
#ifdef WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION
static void keyboardHandleRepeatInfo(void* userData,
struct wl_keyboard* keyboard,
int32_t rate,
int32_t delay)
{
if (keyboard != _glfw.wl.keyboard)
return;
_glfw.wl.keyboardRepeatRate = rate;
_glfw.wl.keyboardRepeatDelay = delay;
}
#endif
static const struct wl_keyboard_listener keyboardListener =
{
keyboardHandleKeymap,
keyboardHandleEnter,
keyboardHandleLeave,
keyboardHandleKey,
keyboardHandleModifiers,
#ifdef WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION
keyboardHandleRepeatInfo,
#endif
};
static void seatHandleCapabilities(void* userData,
struct wl_seat* seat,
enum wl_seat_capability caps)
{
if ((caps & WL_SEAT_CAPABILITY_POINTER) && !_glfw.wl.pointer)
{
_glfw.wl.pointer = wl_seat_get_pointer(seat);
wl_pointer_add_listener(_glfw.wl.pointer, &pointerListener, NULL);
}
else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && _glfw.wl.pointer)
{
wl_pointer_destroy(_glfw.wl.pointer);
_glfw.wl.pointer = NULL;
}
if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !_glfw.wl.keyboard)
{
_glfw.wl.keyboard = wl_seat_get_keyboard(seat);
wl_keyboard_add_listener(_glfw.wl.keyboard, &keyboardListener, NULL);
}
else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && _glfw.wl.keyboard)
{
wl_keyboard_destroy(_glfw.wl.keyboard);
_glfw.wl.keyboard = NULL;
}
}
static void seatHandleName(void* userData,
struct wl_seat* seat,
const char* name)
{
}
static const struct wl_seat_listener seatListener =
{
seatHandleCapabilities,
seatHandleName,
};
static void dataOfferHandleOffer(void* userData,
struct wl_data_offer* offer,
const char* mimeType)
{
for (unsigned int i = 0; i < _glfw.wl.offerCount; i++)
{
if (_glfw.wl.offers[i].offer == offer)
{
if (strcmp(mimeType, "text/plain;charset=utf-8") == 0)
_glfw.wl.offers[i].text_plain_utf8 = GLFW_TRUE;
else if (strcmp(mimeType, "text/uri-list") == 0)
_glfw.wl.offers[i].text_uri_list = GLFW_TRUE;
break;
}
}
}
static const struct wl_data_offer_listener dataOfferListener =
{
dataOfferHandleOffer
};
static void dataDeviceHandleDataOffer(void* userData,
struct wl_data_device* device,
struct wl_data_offer* offer)
{
_GLFWofferWayland* offers =
realloc(_glfw.wl.offers, _glfw.wl.offerCount + 1);
if (!offers)
{
_glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
return;
}
_glfw.wl.offers = offers;
_glfw.wl.offerCount++;
_glfw.wl.offers[_glfw.wl.offerCount - 1] = (_GLFWofferWayland) { offer };
wl_data_offer_add_listener(offer, &dataOfferListener, NULL);
}
static void dataDeviceHandleEnter(void* userData,
struct wl_data_device* device,
uint32_t serial,
struct wl_surface* surface,
wl_fixed_t x,
wl_fixed_t y,
struct wl_data_offer* offer)
{
if (_glfw.wl.dragOffer)
{
wl_data_offer_destroy(_glfw.wl.dragOffer);
_glfw.wl.dragOffer = NULL;
_glfw.wl.dragFocus = NULL;
}
for (unsigned int i = 0; i < _glfw.wl.offerCount; i++)
{
if (_glfw.wl.offers[i].offer == offer)
{
_GLFWwindow* window = NULL;
if (surface)
window = wl_surface_get_user_data(surface);
if (window && _glfw.wl.offers[i].text_uri_list)
{
_glfw.wl.dragOffer = offer;
_glfw.wl.dragFocus = window;
_glfw.wl.dragSerial = serial;
}
_glfw.wl.offers[i] = _glfw.wl.offers[_glfw.wl.offerCount - 1];
_glfw.wl.offerCount--;
break;
}
}
if (_glfw.wl.dragOffer)
wl_data_offer_accept(offer, serial, "text/uri-list");
else
{
wl_data_offer_accept(offer, serial, NULL);
wl_data_offer_destroy(offer);
}
}
static void dataDeviceHandleLeave(void* userData,
struct wl_data_device* device)
{
if (_glfw.wl.dragOffer)
{
wl_data_offer_destroy(_glfw.wl.dragOffer);
_glfw.wl.dragOffer = NULL;
_glfw.wl.dragFocus = NULL;
}
}
static void dataDeviceHandleMotion(void* userData,
struct wl_data_device* device,
uint32_t time,
wl_fixed_t x,
wl_fixed_t y)
{
}
static void dataDeviceHandleDrop(void* userData,
struct wl_data_device* device)
{
if (!_glfw.wl.dragOffer)
return;
char* string = readDataOfferAsString(_glfw.wl.dragOffer, "text/uri-list");
if (string)
{
int count;
char** paths = _glfwParseUriList(string, &count);
if (paths)
_glfwInputDrop(_glfw.wl.dragFocus, count, (const char**) paths);
for (int i = 0; i < count; i++)
free(paths[i]);
free(paths);
}
free(string);
}
static void dataDeviceHandleSelection(void* userData,
struct wl_data_device* device,
struct wl_data_offer* offer)
{
if (_glfw.wl.selectionOffer)
{
wl_data_offer_destroy(_glfw.wl.selectionOffer);
_glfw.wl.selectionOffer = NULL;
}
for (unsigned int i = 0; i < _glfw.wl.offerCount; i++)
{
if (_glfw.wl.offers[i].offer == offer)
{
if (_glfw.wl.offers[i].text_plain_utf8)
_glfw.wl.selectionOffer = offer;
else
wl_data_offer_destroy(offer);
_glfw.wl.offers[i] = _glfw.wl.offers[_glfw.wl.offerCount - 1];
_glfw.wl.offerCount--;
break;
}
}
}
const struct wl_data_device_listener dataDeviceListener =
{
dataDeviceHandleDataOffer,
dataDeviceHandleEnter,
dataDeviceHandleLeave,
dataDeviceHandleMotion,
dataDeviceHandleDrop,
dataDeviceHandleSelection,
};
// Translates a GLFW standard cursor to a theme cursor name
//
static char *translateCursorShape(int shape)
{
switch (shape)
{
case GLFW_ARROW_CURSOR:
return "left_ptr";
case GLFW_IBEAM_CURSOR:
return "xterm";
case GLFW_CROSSHAIR_CURSOR:
return "crosshair";
case GLFW_HAND_CURSOR:
return "hand2";
case GLFW_HRESIZE_CURSOR:
return "sb_h_double_arrow";
case GLFW_VRESIZE_CURSOR:
return "sb_v_double_arrow";
}
return NULL;
}
void _glfwAddSeatListenerWayland(struct wl_seat* seat)
{
wl_seat_add_listener(seat, &seatListener, NULL);
}
void _glfwAddDataDeviceListenerWayland(struct wl_data_device* device)
{
wl_data_device_add_listener(device, &dataDeviceListener, NULL);
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
int _glfwPlatformCreateWindow(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig,
const _GLFWctxconfig* ctxconfig,
const _GLFWfbconfig* fbconfig)
{
if (!createSurface(window, wndconfig, fbconfig))
return GLFW_FALSE;
if (ctxconfig->client != GLFW_NO_API)
{
if (ctxconfig->source == GLFW_EGL_CONTEXT_API ||
ctxconfig->source == GLFW_NATIVE_CONTEXT_API)
{
if (!_glfwInitEGL())
return GLFW_FALSE;
if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig))
return GLFW_FALSE;
}
else if (ctxconfig->source == GLFW_OSMESA_CONTEXT_API)
{
if (!_glfwInitOSMesa())
return GLFW_FALSE;
if (!_glfwCreateContextOSMesa(window, ctxconfig, fbconfig))
return GLFW_FALSE;
}
if (!_glfwRefreshContextAttribs(window, ctxconfig))
return GLFW_FALSE;
}
return GLFW_TRUE;
}
void _glfwPlatformDestroyWindow(_GLFWwindow* window)
{
if (window == _glfw.wl.pointerFocus)
{
_glfw.wl.pointerFocus = NULL;
_glfwInputCursorEnter(window, GLFW_FALSE);
}
if (window == _glfw.wl.keyboardFocus)
{
_glfw.wl.keyboardFocus = NULL;
_glfwInputWindowFocus(window, GLFW_FALSE);
}
if (window->wl.idleInhibitor)
zwp_idle_inhibitor_v1_destroy(window->wl.idleInhibitor);
if (window->context.destroy)
window->context.destroy(window);
destroyDecorations(window);
if (window->wl.xdg.decoration)
zxdg_toplevel_decoration_v1_destroy(window->wl.xdg.decoration);
if (window->wl.decorations.buffer)
wl_buffer_destroy(window->wl.decorations.buffer);
if (window->wl.native)
wl_egl_window_destroy(window->wl.native);
if (window->wl.shellSurface)
wl_shell_surface_destroy(window->wl.shellSurface);
if (window->wl.xdg.toplevel)
xdg_toplevel_destroy(window->wl.xdg.toplevel);
if (window->wl.xdg.surface)
xdg_surface_destroy(window->wl.xdg.surface);
if (window->wl.surface)
wl_surface_destroy(window->wl.surface);
free(window->wl.title);
free(window->wl.monitors);
}
void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title)
{
if (window->wl.title)
free(window->wl.title);
window->wl.title = _glfw_strdup(title);
if (window->wl.xdg.toplevel)
xdg_toplevel_set_title(window->wl.xdg.toplevel, title);
else if (window->wl.shellSurface)
wl_shell_surface_set_title(window->wl.shellSurface, title);
}
void _glfwPlatformSetWindowIcon(_GLFWwindow* window,
int count, const GLFWimage* images)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Setting window icon not supported");
}
void _glfwPlatformGetWindowPos(_GLFWwindow* window, int* xpos, int* ypos)
{
// A Wayland client is not aware of its position, so just warn and leave it
// as (0, 0)
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Window position retrieval not supported");
}
void _glfwPlatformSetWindowPos(_GLFWwindow* window, int xpos, int ypos)
{
// A Wayland client can not set its position, so just warn
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Window position setting not supported");
}
void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height)
{
if (width)
*width = window->wl.width;
if (height)
*height = window->wl.height;
}
void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height)
{
window->wl.width = width;
window->wl.height = height;
resizeWindow(window);
}
void _glfwPlatformSetWindowSizeLimits(_GLFWwindow* window,
int minwidth, int minheight,
int maxwidth, int maxheight)
{
if (_glfw.wl.wmBase)
{
if (window->wl.xdg.toplevel)
{
if (minwidth == GLFW_DONT_CARE || minheight == GLFW_DONT_CARE)
minwidth = minheight = 0;
if (maxwidth == GLFW_DONT_CARE || maxheight == GLFW_DONT_CARE)
maxwidth = maxheight = 0;
xdg_toplevel_set_min_size(window->wl.xdg.toplevel, minwidth, minheight);
xdg_toplevel_set_max_size(window->wl.xdg.toplevel, maxwidth, maxheight);
wl_surface_commit(window->wl.surface);
}
}
else
{
// TODO: find out how to trigger a resize.
// The actual limits are checked in the wl_shell_surface::configure handler.
}
}
void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window,
int numer, int denom)
{
// TODO: find out how to trigger a resize.
// The actual limits are checked in the wl_shell_surface::configure handler.
}
void _glfwPlatformGetFramebufferSize(_GLFWwindow* window,
int* width, int* height)
{
_glfwPlatformGetWindowSize(window, width, height);
if (width)
*width *= window->wl.scale;
if (height)
*height *= window->wl.scale;
}
void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
int* left, int* top,
int* right, int* bottom)
{
if (window->decorated && !window->monitor && !window->wl.decorations.serverSide)
{
if (top)
*top = _GLFW_DECORATION_TOP;
if (left)
*left = _GLFW_DECORATION_WIDTH;
if (right)
*right = _GLFW_DECORATION_WIDTH;
if (bottom)
*bottom = _GLFW_DECORATION_WIDTH;
}
}
void _glfwPlatformGetWindowContentScale(_GLFWwindow* window,
float* xscale, float* yscale)
{
if (xscale)
*xscale = (float) window->wl.scale;
if (yscale)
*yscale = (float) window->wl.scale;
}
void _glfwPlatformIconifyWindow(_GLFWwindow* window)
{
if (_glfw.wl.wmBase)
{
if (window->wl.xdg.toplevel)
xdg_toplevel_set_minimized(window->wl.xdg.toplevel);
}
else
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Iconify window not supported on wl_shell");
}
}
void _glfwPlatformRestoreWindow(_GLFWwindow* window)
{
if (window->wl.xdg.toplevel)
{
if (window->monitor)
xdg_toplevel_unset_fullscreen(window->wl.xdg.toplevel);
if (window->wl.maximized)
xdg_toplevel_unset_maximized(window->wl.xdg.toplevel);
// There is no way to unset minimized, or even to know if we are
// minimized, so there is nothing to do here.
}
else if (window->wl.shellSurface)
{
if (window->monitor || window->wl.maximized)
wl_shell_surface_set_toplevel(window->wl.shellSurface);
}
_glfwInputWindowMonitor(window, NULL);
window->wl.maximized = GLFW_FALSE;
}
void _glfwPlatformMaximizeWindow(_GLFWwindow* window)
{
if (window->wl.xdg.toplevel)
{
xdg_toplevel_set_maximized(window->wl.xdg.toplevel);
}
else if (window->wl.shellSurface)
{
// Let the compositor select the best output.
wl_shell_surface_set_maximized(window->wl.shellSurface, NULL);
}
window->wl.maximized = GLFW_TRUE;
}
void _glfwPlatformShowWindow(_GLFWwindow* window)
{
if (!window->wl.visible)
{
// NOTE: The XDG/shell surface is created here so command-line applications
// with off-screen windows do not appear in for example the Unity dock
if (_glfw.wl.wmBase)
{
if (!window->wl.xdg.toplevel)
createXdgSurface(window);
}
else if (!window->wl.shellSurface)
createShellSurface(window);
window->wl.visible = GLFW_TRUE;
_glfwInputWindowDamage(window);
}
}
void _glfwPlatformHideWindow(_GLFWwindow* window)
{
if (window->wl.visible)
{
window->wl.visible = GLFW_FALSE;
wl_surface_attach(window->wl.surface, NULL, 0, 0);
wl_surface_commit(window->wl.surface);
}
}
void _glfwPlatformRequestWindowAttention(_GLFWwindow* window)
{
// TODO
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Window attention request not implemented yet");
}
void _glfwPlatformFocusWindow(_GLFWwindow* window)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Focusing a window requires user interaction");
}
void _glfwPlatformSetWindowMonitor(_GLFWwindow* window,
_GLFWmonitor* monitor,
int xpos, int ypos,
int width, int height,
int refreshRate)
{
if (monitor)
{
setFullscreen(window, monitor, refreshRate);
}
else
{
if (window->wl.xdg.toplevel)
xdg_toplevel_unset_fullscreen(window->wl.xdg.toplevel);
else if (window->wl.shellSurface)
wl_shell_surface_set_toplevel(window->wl.shellSurface);
setIdleInhibitor(window, GLFW_FALSE);
if (!_glfw.wl.decorationManager)
createDecorations(window);
}
_glfwInputWindowMonitor(window, monitor);
}
int _glfwPlatformWindowFocused(_GLFWwindow* window)
{
return _glfw.wl.keyboardFocus == window;
}
int _glfwPlatformWindowIconified(_GLFWwindow* window)
{
// wl_shell doesn't have any iconified concept, and xdg-shell doesnt give
// any way to request whether a surface is iconified.
return GLFW_FALSE;
}
int _glfwPlatformWindowVisible(_GLFWwindow* window)
{
return window->wl.visible;
}
int _glfwPlatformWindowMaximized(_GLFWwindow* window)
{
return window->wl.maximized;
}
int _glfwPlatformWindowHovered(_GLFWwindow* window)
{
return window->wl.hovered;
}
int _glfwPlatformFramebufferTransparent(_GLFWwindow* window)
{
return window->wl.transparent;
}
void _glfwPlatformSetWindowResizable(_GLFWwindow* window, GLFWbool enabled)
{
// TODO
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Window attribute setting not implemented yet");
}
void _glfwPlatformSetWindowDecorated(_GLFWwindow* window, GLFWbool enabled)
{
if (!window->monitor)
{
if (enabled)
createDecorations(window);
else
destroyDecorations(window);
}
}
void _glfwPlatformSetWindowFloating(_GLFWwindow* window, GLFWbool enabled)
{
// TODO
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Window attribute setting not implemented yet");
}
float _glfwPlatformGetWindowOpacity(_GLFWwindow* window)
{
return 1.f;
}
void _glfwPlatformSetWindowOpacity(_GLFWwindow* window, float opacity)
{
}
void _glfwPlatformSetRawMouseMotion(_GLFWwindow* window, GLFWbool enabled)
{
// This is handled in relativePointerHandleRelativeMotion
}
GLFWbool _glfwPlatformRawMouseMotionSupported(void)
{
return GLFW_TRUE;
}
void _glfwPlatformPollEvents(void)
{
double timeout = 0.0;
handleEvents(&timeout);
}
void _glfwPlatformWaitEvents(void)
{
handleEvents(NULL);
}
void _glfwPlatformWaitEventsTimeout(double timeout)
{
handleEvents(&timeout);
}
void _glfwPlatformPostEmptyEvent(void)
{
wl_display_sync(_glfw.wl.display);
flushDisplay();
}
void _glfwPlatformGetCursorPos(_GLFWwindow* window, double* xpos, double* ypos)
{
if (xpos)
*xpos = window->wl.cursorPosX;
if (ypos)
*ypos = window->wl.cursorPosY;
}
static GLFWbool isPointerLocked(_GLFWwindow* window);
void _glfwPlatformSetCursorPos(_GLFWwindow* window, double x, double y)
{
if (isPointerLocked(window))
{
zwp_locked_pointer_v1_set_cursor_position_hint(
window->wl.pointerLock.lockedPointer,
wl_fixed_from_double(x), wl_fixed_from_double(y));
wl_surface_commit(window->wl.surface);
}
}
void _glfwPlatformSetCursorMode(_GLFWwindow* window, int mode)
{
_glfwPlatformSetCursor(window, window->wl.currentCursor);
}
const char* _glfwPlatformGetScancodeName(int scancode)
{
if (scancode < 0 || scancode > 255 ||
_glfw.wl.keycodes[scancode] == GLFW_KEY_UNKNOWN)
{
_glfwInputError(GLFW_INVALID_VALUE,
"Wayland: Invalid scancode %i",
scancode);
return NULL;
}
const int key = _glfw.wl.keycodes[scancode];
const xkb_keycode_t keycode = scancode + 8;
const xkb_layout_index_t layout =
xkb_state_key_get_layout(_glfw.wl.xkb.state, keycode);
if (layout == XKB_LAYOUT_INVALID)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to retrieve layout for key name");
return NULL;
}
const xkb_keysym_t* keysyms = NULL;
xkb_keymap_key_get_syms_by_level(_glfw.wl.xkb.keymap,
keycode,
layout,
0,
&keysyms);
if (keysyms == NULL)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to retrieve keysym for key name");
return NULL;
}
const uint32_t codepoint = _glfwKeySym2Unicode(keysyms[0]);
if (codepoint == GLFW_INVALID_CODEPOINT)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to retrieve codepoint for key name");
return NULL;
}
const size_t count = _glfwEncodeUTF8(_glfw.wl.keynames[key], codepoint);
if (count == 0)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to encode codepoint for key name");
return NULL;
}
_glfw.wl.keynames[key][count] = '\0';
return _glfw.wl.keynames[key];
}
int _glfwPlatformGetKeyScancode(int key)
{
return _glfw.wl.scancodes[key];
}
int _glfwPlatformCreateCursor(_GLFWcursor* cursor,
const GLFWimage* image,
int xhot, int yhot)
{
cursor->wl.buffer = createShmBuffer(image);
if (!cursor->wl.buffer)
return GLFW_FALSE;
cursor->wl.width = image->width;
cursor->wl.height = image->height;
cursor->wl.xhot = xhot;
cursor->wl.yhot = yhot;
return GLFW_TRUE;
}
int _glfwPlatformCreateStandardCursor(_GLFWcursor* cursor, int shape)
{
struct wl_cursor* standardCursor;
standardCursor = wl_cursor_theme_get_cursor(_glfw.wl.cursorTheme,
translateCursorShape(shape));
if (!standardCursor)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Standard cursor \"%s\" not found",
translateCursorShape(shape));
return GLFW_FALSE;
}
cursor->wl.cursor = standardCursor;
cursor->wl.currentImage = 0;
if (_glfw.wl.cursorThemeHiDPI)
{
standardCursor = wl_cursor_theme_get_cursor(_glfw.wl.cursorThemeHiDPI,
translateCursorShape(shape));
cursor->wl.cursorHiDPI = standardCursor;
}
return GLFW_TRUE;
}
void _glfwPlatformDestroyCursor(_GLFWcursor* cursor)
{
// If it's a standard cursor we don't need to do anything here
if (cursor->wl.cursor)
return;
if (cursor->wl.buffer)
wl_buffer_destroy(cursor->wl.buffer);
}
static void relativePointerHandleRelativeMotion(void* userData,
struct zwp_relative_pointer_v1* pointer,
uint32_t timeHi,
uint32_t timeLo,
wl_fixed_t dx,
wl_fixed_t dy,
wl_fixed_t dxUnaccel,
wl_fixed_t dyUnaccel)
{
_GLFWwindow* window = userData;
double xpos = window->virtualCursorPosX;
double ypos = window->virtualCursorPosY;
if (window->cursorMode != GLFW_CURSOR_DISABLED)
return;
if (window->rawMouseMotion)
{
xpos += wl_fixed_to_double(dxUnaccel);
ypos += wl_fixed_to_double(dyUnaccel);
}
else
{
xpos += wl_fixed_to_double(dx);
ypos += wl_fixed_to_double(dy);
}
_glfwInputCursorPos(window, xpos, ypos);
}
static const struct zwp_relative_pointer_v1_listener relativePointerListener =
{
relativePointerHandleRelativeMotion
};
static void lockedPointerHandleLocked(void* userData,
struct zwp_locked_pointer_v1* lockedPointer)
{
}
static void unlockPointer(_GLFWwindow* window)
{
struct zwp_relative_pointer_v1* relativePointer =
window->wl.pointerLock.relativePointer;
struct zwp_locked_pointer_v1* lockedPointer =
window->wl.pointerLock.lockedPointer;
zwp_relative_pointer_v1_destroy(relativePointer);
zwp_locked_pointer_v1_destroy(lockedPointer);
window->wl.pointerLock.relativePointer = NULL;
window->wl.pointerLock.lockedPointer = NULL;
}
static void lockPointer(_GLFWwindow* window);
static void lockedPointerHandleUnlocked(void* userData,
struct zwp_locked_pointer_v1* lockedPointer)
{
}
static const struct zwp_locked_pointer_v1_listener lockedPointerListener =
{
lockedPointerHandleLocked,
lockedPointerHandleUnlocked
};
static void lockPointer(_GLFWwindow* window)
{
struct zwp_relative_pointer_v1* relativePointer;
struct zwp_locked_pointer_v1* lockedPointer;
if (!_glfw.wl.relativePointerManager)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: no relative pointer manager");
return;
}
relativePointer =
zwp_relative_pointer_manager_v1_get_relative_pointer(
_glfw.wl.relativePointerManager,
_glfw.wl.pointer);
zwp_relative_pointer_v1_add_listener(relativePointer,
&relativePointerListener,
window);
lockedPointer =
zwp_pointer_constraints_v1_lock_pointer(
_glfw.wl.pointerConstraints,
window->wl.surface,
_glfw.wl.pointer,
NULL,
ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT);
zwp_locked_pointer_v1_add_listener(lockedPointer,
&lockedPointerListener,
window);
window->wl.pointerLock.relativePointer = relativePointer;
window->wl.pointerLock.lockedPointer = lockedPointer;
wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerEnterSerial,
NULL, 0, 0);
}
static GLFWbool isPointerLocked(_GLFWwindow* window)
{
return window->wl.pointerLock.lockedPointer != NULL;
}
void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor)
{
struct wl_cursor* defaultCursor;
struct wl_cursor* defaultCursorHiDPI = NULL;
if (!_glfw.wl.pointer)
return;
window->wl.currentCursor = cursor;
// If we're not in the correct window just save the cursor
// the next time the pointer enters the window the cursor will change
if (window != _glfw.wl.pointerFocus || window->wl.decorations.focus != mainWindow)
return;
// Unlock possible pointer lock if no longer disabled.
if (window->cursorMode != GLFW_CURSOR_DISABLED && isPointerLocked(window))
unlockPointer(window);
if (window->cursorMode == GLFW_CURSOR_NORMAL)
{
if (cursor)
setCursorImage(window, &cursor->wl);
else
{
defaultCursor = wl_cursor_theme_get_cursor(_glfw.wl.cursorTheme,
"left_ptr");
if (!defaultCursor)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Standard cursor not found");
return;
}
if (_glfw.wl.cursorThemeHiDPI)
defaultCursorHiDPI =
wl_cursor_theme_get_cursor(_glfw.wl.cursorThemeHiDPI,
"left_ptr");
_GLFWcursorWayland cursorWayland = {
defaultCursor,
defaultCursorHiDPI,
NULL,
0, 0,
0, 0,
0
};
setCursorImage(window, &cursorWayland);
}
}
else if (window->cursorMode == GLFW_CURSOR_DISABLED)
{
if (!isPointerLocked(window))
lockPointer(window);
}
else if (window->cursorMode == GLFW_CURSOR_HIDDEN)
{
wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerEnterSerial, NULL, 0, 0);
}
}
static void dataSourceHandleTarget(void* userData,
struct wl_data_source* source,
const char* mimeType)
{
if (_glfw.wl.selectionSource != source)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Unknown clipboard data source");
return;
}
}
static void dataSourceHandleSend(void* userData,
struct wl_data_source* source,
const char* mimeType,
int fd)
{
// Ignore it if this is an outdated or invalid request
if (_glfw.wl.selectionSource != source ||
strcmp(mimeType, "text/plain;charset=utf-8") != 0)
{
close(fd);
return;
}
char* string = _glfw.wl.clipboardString;
size_t length = strlen(string);
while (length > 0)
{
const ssize_t result = write(fd, string, length);
if (result == -1)
{
if (errno == EINTR)
continue;
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Error while writing the clipboard: %s",
strerror(errno));
break;
}
length -= result;
string += result;
}
close(fd);
}
static void dataSourceHandleCancelled(void* userData,
struct wl_data_source* source)
{
wl_data_source_destroy(source);
if (_glfw.wl.selectionSource != source)
return;
_glfw.wl.selectionSource = NULL;
}
static const struct wl_data_source_listener dataSourceListener =
{
dataSourceHandleTarget,
dataSourceHandleSend,
dataSourceHandleCancelled,
};
void _glfwPlatformSetClipboardString(const char* string)
{
if (_glfw.wl.selectionSource)
{
wl_data_source_destroy(_glfw.wl.selectionSource);
_glfw.wl.selectionSource = NULL;
}
char* copy = _glfw_strdup(string);
if (!copy)
{
_glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
return;
}
free(_glfw.wl.clipboardString);
_glfw.wl.clipboardString = copy;
_glfw.wl.selectionSource =
wl_data_device_manager_create_data_source(_glfw.wl.dataDeviceManager);
if (!_glfw.wl.selectionSource)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to create clipboard data source");
return;
}
wl_data_source_add_listener(_glfw.wl.selectionSource,
&dataSourceListener,
NULL);
wl_data_source_offer(_glfw.wl.selectionSource, "text/plain;charset=utf-8");
wl_data_device_set_selection(_glfw.wl.dataDevice,
_glfw.wl.selectionSource,
_glfw.wl.serial);
}
const char* _glfwPlatformGetClipboardString(void)
{
if (!_glfw.wl.selectionOffer)
{
_glfwInputError(GLFW_FORMAT_UNAVAILABLE,
"Wayland: No clipboard data available");
return NULL;
}
if (_glfw.wl.selectionSource)
return _glfw.wl.clipboardString;
free(_glfw.wl.clipboardString);
_glfw.wl.clipboardString =
readDataOfferAsString(_glfw.wl.selectionOffer, "text/plain;charset=utf-8");
return _glfw.wl.clipboardString;
}
void _glfwPlatformGetRequiredInstanceExtensions(char** extensions)
{
if (!_glfw.vk.KHR_surface || !_glfw.vk.KHR_wayland_surface)
return;
extensions[0] = "VK_KHR_surface";
extensions[1] = "VK_KHR_wayland_surface";
}
int _glfwPlatformGetPhysicalDevicePresentationSupport(VkInstance instance,
VkPhysicalDevice device,
uint32_t queuefamily)
{
PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR
vkGetPhysicalDeviceWaylandPresentationSupportKHR =
(PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR)
vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceWaylandPresentationSupportKHR");
if (!vkGetPhysicalDeviceWaylandPresentationSupportKHR)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"Wayland: Vulkan instance missing VK_KHR_wayland_surface extension");
return VK_NULL_HANDLE;
}
return vkGetPhysicalDeviceWaylandPresentationSupportKHR(device,
queuefamily,
_glfw.wl.display);
}
VkResult _glfwPlatformCreateWindowSurface(VkInstance instance,
_GLFWwindow* window,
const VkAllocationCallbacks* allocator,
VkSurfaceKHR* surface)
{
VkResult err;
VkWaylandSurfaceCreateInfoKHR sci;
PFN_vkCreateWaylandSurfaceKHR vkCreateWaylandSurfaceKHR;
vkCreateWaylandSurfaceKHR = (PFN_vkCreateWaylandSurfaceKHR)
vkGetInstanceProcAddr(instance, "vkCreateWaylandSurfaceKHR");
if (!vkCreateWaylandSurfaceKHR)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"Wayland: Vulkan instance missing VK_KHR_wayland_surface extension");
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
memset(&sci, 0, sizeof(sci));
sci.sType = VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR;
sci.display = _glfw.wl.display;
sci.surface = window->wl.surface;
err = vkCreateWaylandSurfaceKHR(instance, &sci, allocator, surface);
if (err)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Failed to create Vulkan surface: %s",
_glfwGetVulkanResultString(err));
}
return err;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW native API //////
//////////////////////////////////////////////////////////////////////////
GLFWAPI struct wl_display* glfwGetWaylandDisplay(void)
{
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
return _glfw.wl.display;
}
GLFWAPI struct wl_surface* glfwGetWaylandWindow(GLFWwindow* handle)
{
_GLFWwindow* window = (_GLFWwindow*) handle;
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
return window->wl.surface;
}