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wl_window.c
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//========================================================================
// GLFW 3.4 Wayland - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2014 Jonas Ådahl <[email protected]>
//
// 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 "backend_utils.h"
#include "memfd.h"
#include "linux_notify.h"
#include "wl_client_side_decorations.h"
#include "../kitty/monotonic.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <sys/mman.h>
#define debug(...) if (_glfw.hints.init.debugRendering) fprintf(stderr, __VA_ARGS__);
static struct wl_buffer* createShmBuffer(const GLFWimage* image, bool is_opaque, bool init_data)
{
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: Creating a buffer file for %d B failed: %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: mmap failed: %s", strerror(errno));
close(fd);
return NULL;
}
pool = wl_shm_create_pool(_glfw.wl.shm, fd, length);
close(fd);
if (init_data) {
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, is_opaque ? WL_SHM_FORMAT_XRGB8888 : WL_SHM_FORMAT_ARGB8888);
munmap(data, length);
wl_shm_pool_destroy(pool);
return buffer;
}
static void
setCursorImage(_GLFWwindow* window, bool on_theme_change) {
_GLFWcursorWayland defaultCursor = {.shape = GLFW_ARROW_CURSOR};
_GLFWcursorWayland* cursorWayland = window->cursor ? &window->cursor->wl : &defaultCursor;
struct wl_cursor_image* image = NULL;
struct wl_buffer* buffer = NULL;
struct wl_surface* surface = _glfw.wl.cursorSurface;
const int scale = window->wl.scale;
if (cursorWayland->scale < 0) {
buffer = cursorWayland->buffer;
toggleTimer(&_glfw.wl.eventLoopData, _glfw.wl.cursorAnimationTimer, 0);
} else {
if (on_theme_change || cursorWayland->scale != scale) {
struct wl_cursor *newCursor = NULL;
struct wl_cursor_theme *theme = glfw_wlc_theme_for_scale(scale);
if (theme) newCursor = _glfwLoadCursor(cursorWayland->shape, theme);
if (newCursor != NULL) {
cursorWayland->cursor = newCursor;
cursorWayland->scale = scale;
cursorWayland->currentImage = 0;
} else {
_glfwInputError(GLFW_PLATFORM_ERROR, "Wayland: late cursor load failed; proceeding with existing cursor");
}
}
if (!cursorWayland->cursor || !cursorWayland->cursor->image_count)
return;
if (cursorWayland->currentImage >= cursorWayland->cursor->image_count) cursorWayland->currentImage = 0;
image = cursorWayland->cursor->images[cursorWayland->currentImage];
if (!image) image = cursorWayland->cursor->images[0];
if (!image) return;
buffer = wl_cursor_image_get_buffer(image);
if (image->delay && window->cursor) {
changeTimerInterval(&_glfw.wl.eventLoopData, _glfw.wl.cursorAnimationTimer, ms_to_monotonic_t(image->delay));
toggleTimer(&_glfw.wl.eventLoopData, _glfw.wl.cursorAnimationTimer, 1);
} else {
toggleTimer(&_glfw.wl.eventLoopData, _glfw.wl.cursorAnimationTimer, 0);
}
if (!buffer)
return;
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.serial,
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 bool checkScaleChange(_GLFWwindow* window)
{
int scale = 1;
int i;
int monitorScale;
// Check if we will be able to set the buffer scale or not.
if (_glfw.wl.compositorVersion < 3)
return false;
// Get the scale factor from the highest scale monitor that this window is on
for (i = 0; i < window->wl.monitorsCount; ++i)
{
monitorScale = window->wl.monitors[i]->wl.scale;
if (scale < monitorScale)
scale = monitorScale;
}
if (window->wl.monitorsCount < 1 && _glfw.monitorCount > 0) {
// The window has not yet been assigned to any monitors, use the primary monitor
_GLFWmonitor *m = _glfw.monitors[0];
if (m && m->wl.scale > scale) scale = m->wl.scale;
}
// Only change the framebuffer size if the scale changed.
if (scale != window->wl.scale)
{
window->wl.scale = scale;
wl_surface_set_buffer_scale(window->wl.surface, scale);
setCursorImage(window, false);
return true;
}
if (window->wl.monitorsCount > 0 && !window->wl.initial_scale_notified) {
window->wl.initial_scale_notified = true;
return true;
}
return false;
}
// 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
resizeFramebuffer(_GLFWwindow* window) {
int scale = window->wl.scale;
int scaledWidth = window->wl.width * scale;
int scaledHeight = window->wl.height * scale;
debug("Resizing framebuffer to: %dx%d at scale: %d\n", window->wl.width, 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);
}
static const char*
clipboard_mime(void) {
static char buf[128] = {0};
if (buf[0] == 0) {
snprintf(buf, sizeof(buf), "application/glfw+clipboard-%d", getpid());
}
return buf;
}
static void
dispatchChangesAfterConfigure(_GLFWwindow *window, int32_t width, int32_t height) {
bool size_changed = width != window->wl.width || height != window->wl.height;
bool scale_changed = checkScaleChange(window);
if (size_changed) {
_glfwInputWindowSize(window, width, height);
window->wl.width = width; window->wl.height = height;
resizeFramebuffer(window);
}
if (scale_changed) {
if (!size_changed)
resizeFramebuffer(window);
_glfwInputWindowContentScale(window, window->wl.scale, window->wl.scale);
}
_glfwInputWindowDamage(window);
}
static void
inform_compositor_of_window_geometry(_GLFWwindow *window, const char *event) {
#define geometry window->wl.decorations.geometry
debug("Setting window geometry in %s event: x=%d y=%d %dx%d\n", event, geometry.x, geometry.y, geometry.width, geometry.height);
xdg_surface_set_window_geometry(window->wl.xdg.surface, geometry.x, geometry.y, geometry.width, geometry.height);
#undef geometry
}
static void
xdgDecorationHandleConfigure(void* data,
struct zxdg_toplevel_decoration_v1* decoration UNUSED,
uint32_t mode)
{
_GLFWwindow* window = data;
bool has_server_side_decorations = (mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE);
debug("XDG decoration configure event received: has_server_side_decorations: %d\n", has_server_side_decorations);
if (has_server_side_decorations == window->wl.decorations.serverSide) return;
window->wl.decorations.serverSide = has_server_side_decorations;
int width = window->wl.width, height = window->wl.height;
if (window->wl.decorations.serverSide) {
free_csd_surfaces(window);
height += window->wl.decorations.metrics.visible_titlebar_height;
} else {
ensure_csd_resources(window);
}
set_csd_window_geometry(window, &width, &height);
dispatchChangesAfterConfigure(window, width, height);
ensure_csd_resources(window);
wl_surface_commit(window->wl.surface);
debug("final window content size: %dx%d\n", window->wl.width, window->wl.height);
inform_compositor_of_window_geometry(window, "configure-decorations");
}
static const struct zxdg_toplevel_decoration_v1_listener xdgDecorationListener = {
xdgDecorationHandleConfigure,
};
static void surfaceHandleEnter(void *data,
struct wl_surface *surface UNUSED,
struct wl_output *output)
{
_GLFWwindow* window = data;
_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;
if (checkScaleChange(window)) {
resizeFramebuffer(window);
_glfwInputWindowContentScale(window, window->wl.scale, window->wl.scale);
ensure_csd_resources(window);
}
}
static void surfaceHandleLeave(void *data,
struct wl_surface *surface UNUSED,
struct wl_output *output)
{
_GLFWwindow* window = data;
_GLFWmonitor* monitor = wl_output_get_user_data(output);
bool found;
int i;
for (i = 0, found = false; i < window->wl.monitorsCount - 1; ++i)
{
if (monitor == window->wl.monitors[i])
found = true;
if (found)
window->wl.monitors[i] = window->wl.monitors[i + 1];
}
window->wl.monitors[--window->wl.monitorsCount] = NULL;
if (checkScaleChange(window)) {
resizeFramebuffer(window);
_glfwInputWindowContentScale(window, window->wl.scale, window->wl.scale);
ensure_csd_resources(window);
}
}
static const struct wl_surface_listener surfaceListener = {
surfaceHandleEnter,
surfaceHandleLeave
};
static void setIdleInhibitor(_GLFWwindow* window, bool 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: Idle inhibitor creation failed");
}
else if (!enable && window->wl.idleInhibitor)
{
zwp_idle_inhibitor_v1_destroy(window->wl.idleInhibitor);
window->wl.idleInhibitor = NULL;
}
}
static bool createSurface(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig)
{
window->wl.surface = wl_compositor_create_surface(_glfw.wl.compositor);
if (!window->wl.surface)
return 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 false;
window->wl.width = wndconfig->width;
window->wl.height = wndconfig->height;
window->wl.user_requested_content_size.width = wndconfig->width;
window->wl.user_requested_content_size.height = wndconfig->height;
window->wl.scale = 1;
if (!window->wl.transparent)
setOpaqueRegion(window);
return true;
}
static void setFullscreen(_GLFWwindow* window, _GLFWmonitor* monitor, bool on)
{
if (window->wl.xdg.toplevel)
{
if (on) {
xdg_toplevel_set_fullscreen(
window->wl.xdg.toplevel,
monitor ? monitor->wl.output : NULL);
if (!window->wl.decorations.serverSide) free_csd_surfaces(window);
} else {
xdg_toplevel_unset_fullscreen(window->wl.xdg.toplevel);
ensure_csd_resources(window);
}
}
setIdleInhibitor(window, on);
}
bool
_glfwPlatformIsFullscreen(_GLFWwindow *window, unsigned int flags UNUSED) {
return window->wl.toplevel_states & TOPLEVEL_STATE_FULLSCREEN;
}
bool
_glfwPlatformToggleFullscreen(_GLFWwindow *window, unsigned int flags UNUSED) {
bool already_fullscreen = _glfwPlatformIsFullscreen(window, flags);
setFullscreen(window, NULL, !already_fullscreen);
return !already_fullscreen;
}
static void
xdgToplevelHandleConfigure(void* data,
struct xdg_toplevel* toplevel UNUSED,
int32_t width,
int32_t height,
struct wl_array* states)
{
_GLFWwindow* window = data;
float aspectRatio;
float targetRatio;
enum xdg_toplevel_state* state;
uint32_t new_states = 0;
debug("top-level configure event: size: %dx%d states: ", width, height);
wl_array_for_each(state, states) {
switch (*state) {
#define C(x) case XDG_##x: new_states |= x; debug("%s ", #x); break
C(TOPLEVEL_STATE_RESIZING);
C(TOPLEVEL_STATE_MAXIMIZED);
C(TOPLEVEL_STATE_FULLSCREEN);
C(TOPLEVEL_STATE_ACTIVATED);
C(TOPLEVEL_STATE_TILED_LEFT);
C(TOPLEVEL_STATE_TILED_RIGHT);
C(TOPLEVEL_STATE_TILED_TOP);
C(TOPLEVEL_STATE_TILED_BOTTOM);
#undef C
}
}
debug("\n");
if (new_states & TOPLEVEL_STATE_RESIZING) {
if (width) window->wl.user_requested_content_size.width = width;
if (height) window->wl.user_requested_content_size.height = height;
if (!(window->wl.toplevel_states & TOPLEVEL_STATE_RESIZING)) _glfwInputLiveResize(window, true);
}
if (width != 0 && height != 0)
{
if (!(new_states & TOPLEVEL_STATE_DOCKED))
{
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 = (int32_t)((float)width / targetRatio);
else if (aspectRatio > targetRatio)
width = (int32_t)((float)height * targetRatio);
}
}
}
bool live_resize_done = !(new_states & TOPLEVEL_STATE_RESIZING) && (window->wl.toplevel_states & TOPLEVEL_STATE_RESIZING);
window->wl.toplevel_states = new_states;
set_csd_window_geometry(window, &width, &height);
dispatchChangesAfterConfigure(window, width, height);
debug("final window content size: %dx%d\n", window->wl.width, window->wl.height);
_glfwInputWindowFocus(window, window->wl.toplevel_states & TOPLEVEL_STATE_ACTIVATED);
ensure_csd_resources(window);
wl_surface_commit(window->wl.surface);
inform_compositor_of_window_geometry(window, "configure");
if (live_resize_done) _glfwInputLiveResize(window, false);
}
static void xdgToplevelHandleClose(void* data,
struct xdg_toplevel* toplevel UNUSED)
{
_GLFWwindow* window = data;
_glfwInputWindowCloseRequest(window);
}
static const struct xdg_toplevel_listener xdgToplevelListener = {
xdgToplevelHandleConfigure,
xdgToplevelHandleClose
};
static void xdgSurfaceHandleConfigure(void* data UNUSED,
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.decorations.serverSide = true;
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 = false;
ensure_csd_resources(window);
}
}
static bool
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: xdg-surface creation failed");
return 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: xdg-toplevel creation failed");
return 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, true);
}
else if (window->wl.maximize_on_first_show)
{
window->wl.maximize_on_first_show = false;
xdg_toplevel_set_maximized(window->wl.xdg.toplevel);
setIdleInhibitor(window, false);
setXdgDecorations(window);
}
else
{
setIdleInhibitor(window, false);
setXdgDecorations(window);
}
if (strlen(window->wl.appId))
xdg_toplevel_set_app_id(window->wl.xdg.toplevel, window->wl.appId);
wl_surface_commit(window->wl.surface);
wl_display_roundtrip(_glfw.wl.display);
return true;
}
static void incrementCursorImage(_GLFWwindow* window)
{
if (window && window->wl.decorations.focus == CENTRAL_WINDOW && window->cursorMode != GLFW_CURSOR_HIDDEN) {
_GLFWcursor* cursor = window->wl.currentCursor;
if (cursor && cursor->wl.cursor)
{
cursor->wl.currentImage += 1;
cursor->wl.currentImage %= cursor->wl.cursor->image_count;
setCursorImage(window, false);
toggleTimer(&_glfw.wl.eventLoopData, _glfw.wl.cursorAnimationTimer, cursor->wl.cursor->image_count > 1);
return;
}
}
toggleTimer(&_glfw.wl.eventLoopData, _glfw.wl.cursorAnimationTimer, 1);
}
void
animateCursorImage(id_type timer_id UNUSED, void *data UNUSED) {
incrementCursorImage(_glfw.wl.pointerFocus);
}
static void
abortOnFatalError(int last_error) {
static bool abort_called = false;
if (!abort_called) {
abort_called = true;
_glfwInputError(GLFW_PLATFORM_ERROR, "Wayland: fatal display error: %s", strerror(last_error));
if (_glfw.callbacks.application_close) _glfw.callbacks.application_close(1);
else {
_GLFWwindow* window = _glfw.windowListHead;
while (window)
{
_glfwInputWindowCloseRequest(window);
window = window->next;
}
}
}
// ensure the tick callback is called
_glfw.wl.eventLoopData.wakeup_data_read = true;
}
static void
wayland_read_events(int poll_result, int events, void *data UNUSED) {
EVDBG("wayland_read_events poll_result: %d events: %d", poll_result, events);
if (poll_result > 0 && events) wl_display_read_events(_glfw.wl.display);
else wl_display_cancel_read(_glfw.wl.display);
}
static void handleEvents(monotonic_t timeout)
{
struct wl_display* display = _glfw.wl.display;
errno = 0;
EVDBG("starting handleEvents(%.2f)", monotonic_t_to_s_double(timeout));
while (wl_display_prepare_read(display) != 0) {
if (wl_display_dispatch_pending(display) == -1) {
abortOnFatalError(errno);
return;
}
}
// If an error different from EAGAIN happens, we have likely been
// disconnected from the Wayland session, try to handle that the best we
// can.
errno = 0;
if (wl_display_flush(display) < 0 && errno != EAGAIN)
{
wl_display_cancel_read(display);
abortOnFatalError(errno);
return;
}
// we pass in wayland_read_events to ensure that the above wl_display_prepare_read call
// is followed by either wl_display_cancel_read or wl_display_read_events
// before any events/timers are dispatched. This allows other wayland functions
// to be called in the event/timer handlers without causing a deadlock
bool display_read_ok = pollForEvents(&_glfw.wl.eventLoopData, timeout, wayland_read_events);
EVDBG("display_read_ok: %d", display_read_ok);
if (display_read_ok) {
int num = wl_display_dispatch_pending(display);
(void)num;
EVDBG("dispatched %d Wayland events", num);
}
glfw_ibus_dispatch(&_glfw.wl.xkb.ibus);
glfw_dbus_session_bus_dispatch();
EVDBG("other dispatch done");
if (_glfw.wl.eventLoopData.wakeup_fd_ready) check_for_wakeup_events(&_glfw.wl.eventLoopData);
}
static struct wl_cursor*
try_cursor_names(struct wl_cursor_theme* theme, int arg_count, ...) {
struct wl_cursor* ans = NULL;
va_list ap;
va_start(ap, arg_count);
for (int i = 0; i < arg_count && !ans; i++) {
const char *name = va_arg(ap, const char *);
ans = wl_cursor_theme_get_cursor(theme, name);
}
va_end(ap);
return ans;
}
struct wl_cursor* _glfwLoadCursor(GLFWCursorShape shape, struct wl_cursor_theme* theme)
{
static bool warnings[GLFW_INVALID_CURSOR] = {0};
if (!theme) return NULL;
#define NUMARGS(...) (sizeof((const char*[]){__VA_ARGS__})/sizeof(const char*))
#define C(name, ...) case name: { \
ans = try_cursor_names(theme, NUMARGS(__VA_ARGS__), __VA_ARGS__); \
if (!ans && !warnings[name]) {\
_glfwInputError(GLFW_PLATFORM_ERROR, "Wayland: Could not find standard cursor: %s", #name); \
warnings[name] = true; \
} \
break; }
struct wl_cursor* ans = NULL;
switch (shape)
{
C(GLFW_ARROW_CURSOR, "left_ptr", "arrow", "default")
C(GLFW_IBEAM_CURSOR, "xterm", "ibeam", "text")
C(GLFW_CROSSHAIR_CURSOR, "crosshair", "cross")
C(GLFW_HAND_CURSOR, "hand2", "grab", "grabbing", "closedhand")
C(GLFW_HRESIZE_CURSOR, "sb_h_double_arrow", "h_double_arrow", "col-resize")
C(GLFW_VRESIZE_CURSOR, "sb_v_double_arrow", "v_double_arrow", "row-resize")
C(GLFW_NW_RESIZE_CURSOR, "top_left_corner", "nw-resize")
C(GLFW_NE_RESIZE_CURSOR, "top_right_corner", "ne-resize")
C(GLFW_SW_RESIZE_CURSOR, "bottom_left_corner", "sw-resize")
C(GLFW_SE_RESIZE_CURSOR, "bottom_right_corner", "se-resize")
case GLFW_INVALID_CURSOR:
break;
}
return ans;
#undef NUMARGS
#undef C
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
int _glfwPlatformCreateWindow(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig,
const _GLFWctxconfig* ctxconfig,
const _GLFWfbconfig* fbconfig)
{
initialize_csd_metrics(window);
window->wl.transparent = fbconfig->transparent;
strncpy(window->wl.appId, wndconfig->wl.appId, sizeof(window->wl.appId));
if (!createSurface(window, wndconfig))
return false;
if (ctxconfig->client != GLFW_NO_API)
{
if (ctxconfig->source == GLFW_EGL_CONTEXT_API ||
ctxconfig->source == GLFW_NATIVE_CONTEXT_API)
{
if (!_glfwInitEGL())
return false;
if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig))
return false;
}
else if (ctxconfig->source == GLFW_OSMESA_CONTEXT_API)
{
if (!_glfwInitOSMesa())
return false;
if (!_glfwCreateContextOSMesa(window, ctxconfig, fbconfig))
return false;
}
}
if (wndconfig->title)
window->wl.title = _glfw_strdup(wndconfig->title);
if (wndconfig->maximized)
window->wl.maximize_on_first_show = true;
if (wndconfig->visible)
{
if (!createXdgSurface(window))
return false;
window->wl.visible = true;
}
else
{
window->wl.xdg.surface = NULL;
window->wl.xdg.toplevel = NULL;
window->wl.visible = false;
}
window->wl.currentCursor = NULL;
// Don't set window->wl.cursorTheme to NULL here.
window->wl.monitors = calloc(1, sizeof(_GLFWmonitor*));
window->wl.monitorsCount = 0;
window->wl.monitorsSize = 1;
return true;
}
void _glfwPlatformDestroyWindow(_GLFWwindow* window)
{
if (window == _glfw.wl.pointerFocus)
{
_glfw.wl.pointerFocus = NULL;
_glfwInputCursorEnter(window, false);
}
if (window->id == _glfw.wl.keyboardFocusId)
{
_glfw.wl.keyboardFocusId = 0;
_glfwInputWindowFocus(window, false);
}
if (window->id == _glfw.wl.keyRepeatInfo.keyboardFocusId) {
_glfw.wl.keyRepeatInfo.keyboardFocusId = 0;
}
if (window->wl.idleInhibitor)
zwp_idle_inhibitor_v1_destroy(window->wl.idleInhibitor);
if (window->context.destroy)
window->context.destroy(window);
free_all_csd_resources(window);
if (window->wl.xdg.decoration)
zxdg_toplevel_decoration_v1_destroy(window->wl.xdg.decoration);
if (window->wl.native)
wl_egl_window_destroy(window->wl.native);
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);
if (window->wl.frameCallbackData.current_wl_callback)
wl_callback_destroy(window->wl.frameCallbackData.current_wl_callback);
}
void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title)
{
if (window->wl.title) {
if (title && strcmp(title, window->wl.title) == 0) return;
free(window->wl.title);
} else if (!title) return;
// Wayland cannot handle requests larger than ~8200 bytes. Sending
// one causes an abort(). Since titles this large are meaningless anyway
// ensure they do not happen.
window->wl.title = utf_8_strndup(title, 2048);
if (window->wl.xdg.toplevel) xdg_toplevel_set_title(window->wl.xdg.toplevel, window->wl.title);
change_csd_title(window);
}
void _glfwPlatformSetWindowIcon(_GLFWwindow* window UNUSED,
int count UNUSED, const GLFWimage* images UNUSED)
{
_glfwInputError(GLFW_FEATURE_UNAVAILABLE,
"Wayland: The platform does not support setting the window icon");
}
void _glfwPlatformGetWindowPos(_GLFWwindow* window UNUSED, int* xpos UNUSED, int* ypos UNUSED)
{
// A Wayland client is not aware of its position, so just warn and leave it
// as (0, 0)
static bool warned_once = false;
if (!warned_once) {
_glfwInputError(GLFW_FEATURE_UNAVAILABLE,
"Wayland: The platform does not provide the window position");
warned_once = true;
}
}
void _glfwPlatformSetWindowPos(_GLFWwindow* window UNUSED, int xpos UNUSED, int ypos UNUSED)
{
// A Wayland client can not set its position, so just warn
_glfwInputError(GLFW_FEATURE_UNAVAILABLE,
"Wayland: The platform does not support setting the window position");
}
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)
{
if (width != window->wl.width || height != window->wl.height) {
window->wl.user_requested_content_size.width = width;
window->wl.user_requested_content_size.height = height;
int32_t w = 0, h = 0;
set_csd_window_geometry(window, &w, &h);
window->wl.width = w; window->wl.height = h;
resizeFramebuffer(window);
ensure_csd_resources(window);
wl_surface_commit(window->wl.surface);
inform_compositor_of_window_geometry(window, "SetWindowSize");
}
}
void _glfwPlatformSetWindowSizeLimits(_GLFWwindow* window,
int minwidth, int minheight,
int maxwidth, int maxheight)
{
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);
}
}
void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window UNUSED,
int numer UNUSED, int denom UNUSED)
{
// TODO: find out how to trigger a resize.
// The actual limits are checked in the xdg_toplevel::configure handler.
_glfwInputError(GLFW_FEATURE_UNIMPLEMENTED,
"Wayland: Window aspect ratio not yet implemented");
}
void _glfwPlatformSetWindowSizeIncrements(_GLFWwindow* window UNUSED,
int widthincr UNUSED, int heightincr UNUSED)
{
// TODO: find out how to trigger a resize.
// The actual limits are checked in the xdg_toplevel::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 = window->wl.decorations.metrics.top;
if (left)
*left = window->wl.decorations.metrics.width;
if (right)
*right = window->wl.decorations.metrics.width;
if (bottom)
*bottom = window->wl.decorations.metrics.width;
}
}
void _glfwPlatformGetWindowContentScale(_GLFWwindow* window,
float* xscale, float* yscale)
{
if (xscale)
*xscale = (float) window->wl.scale;
if (yscale)
*yscale = (float) window->wl.scale;
}
monotonic_t _glfwPlatformGetDoubleClickInterval(_GLFWwindow* window UNUSED)
{
return ms_to_monotonic_t(500ll);
}
void _glfwPlatformIconifyWindow(_GLFWwindow* window)
{
if (window->wl.xdg.toplevel)
xdg_toplevel_set_minimized(window->wl.xdg.toplevel);
}
void _glfwPlatformRestoreWindow(_GLFWwindow* window)
{
if (window->wl.xdg.toplevel)
{
if (window->monitor)
xdg_toplevel_unset_fullscreen(window->wl.xdg.toplevel);
if (window->wl.toplevel_states & TOPLEVEL_STATE_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 in this case.
}
_glfwInputWindowMonitor(window, NULL);
}