kitty/glfw/wl_window.c
2018-07-12 18:18:17 +05:30

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//========================================================================
// 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.
//
//========================================================================
#define _GNU_SOURCE
#include "internal.h"
#include "backend_utils.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <sys/mman.h>
static void handlePing(void* data,
struct wl_shell_surface* shellSurface,
uint32_t serial)
{
wl_shell_surface_pong(shellSurface, serial);
}
static void handleConfigure(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 handlePopupDone(void* data,
struct wl_shell_surface* shellSurface)
{
}
static const struct wl_shell_surface_listener shellSurfaceListener = {
handlePing,
handleConfigure,
handlePopupDone
};
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 insufficent, 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;
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;
ret = posix_fallocate(fd, 0, size);
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: Creating a buffer file for %d B failed: %m",
length);
return GLFW_FALSE;
}
data = mmap(NULL, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (data == MAP_FAILED)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: mmap failed: %m");
close(fd);
return GLFW_FALSE;
}
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;
}
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)
return;
if (!window->wl.decorations.buffer)
window->wl.decorations.buffer = createShmBuffer(&image);
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->surface)
wl_surface_destroy(decoration->surface);
if (decoration->subsurface)
wl_subsurface_destroy(decoration->subsurface);
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);
}
// 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)
{
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;
// Get the scale factor from the highest scale monitor.
for (i = 0; i < window->wl.monitorsCount; ++i)
{
monitorScale = window->wl.monitors[i]->wl.scale;
if (scale < monitorScale)
scale = monitorScale;
}
// 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);
resizeWindow(window);
}
}
static void handleEnter(void *data,
struct wl_surface *surface,
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;
checkScaleChange(window);
}
static void handleLeave(void *data,
struct wl_surface *surface,
struct wl_output *output)
{
_GLFWwindow* window = data;
_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 = {
handleEnter,
handleLeave
};
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: Idle inhibitor creation failed");
}
else if (!enable && window->wl.idleInhibitor)
{
zwp_idle_inhibitor_v1_destroy(window->wl.idleInhibitor);
window->wl.idleInhibitor = NULL;
}
}
static GLFWbool createSurface(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig)
{
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;
if (!window->wl.transparent)
setOpaqueRegion(window);
if (window->decorated && !window->monitor)
createDecorations(window);
return GLFW_TRUE;
}
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);
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);
}
else
{
wl_shell_surface_set_toplevel(window->wl.shellSurface);
setIdleInhibitor(window, GLFW_FALSE);
}
wl_surface_commit(window->wl.surface);
return GLFW_TRUE;
}
static void xdgToplevelHandleConfigure(void* data,
struct xdg_toplevel* toplevel,
int32_t width,
int32_t height,
struct wl_array* states)
{
_GLFWwindow* window = data;
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.justCreated && !activated && window->autoIconify)
_glfwPlatformIconifyWindow(window);
_glfwInputWindowFocus(window, activated);
window->wl.justCreated = GLFW_FALSE;
}
static void xdgToplevelHandleClose(void* data,
struct xdg_toplevel* toplevel)
{
_GLFWwindow* window = data;
_glfwInputWindowCloseRequest(window);
}
static const struct xdg_toplevel_listener xdgToplevelListener = {
xdgToplevelHandleConfigure,
xdgToplevelHandleClose
};
static void xdgSurfaceHandleConfigure(void* data,
struct xdg_surface* surface,
uint32_t serial)
{
xdg_surface_ack_configure(surface, serial);
}
static const struct xdg_surface_listener xdgSurfaceListener = {
xdgSurfaceHandleConfigure
};
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: xdg-surface creation failed");
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: xdg-toplevel creation failed");
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);
}
else
{
setIdleInhibitor(window, GLFW_FALSE);
}
wl_surface_commit(window->wl.surface);
wl_display_roundtrip(_glfw.wl.display);
return GLFW_TRUE;
}
static void
handleEvents(double timeout)
{
struct wl_display* display = _glfw.wl.display;
while (wl_display_prepare_read(display) != 0) {
wl_display_dispatch_pending(display);
}
// If an error different from EAGAIN happens, we have likely been
// disconnected from the Wayland session, try to handle that the best we
// can.
if (wl_display_flush(display) < 0 && errno != EAGAIN)
{
_GLFWwindow* window = _glfw.windowListHead;
while (window)
{
_glfwInputWindowCloseRequest(window);
window = window->next;
}
wl_display_cancel_read(display);
return;
}
GLFWbool display_read_ok = pollForEvents(&_glfw.wl.eventLoopData, timeout);
if (display_read_ok) {
wl_display_read_events(display);
wl_display_dispatch_pending(display);
}
else
{
wl_display_cancel_read(display);
}
glfw_ibus_dispatch(&_glfw.wl.xkb.ibus);
}
// 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 "grabbing";
case GLFW_HRESIZE_CURSOR:
return "sb_h_double_arrow";
case GLFW_VRESIZE_CURSOR:
return "sb_v_double_arrow";
}
return NULL;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
int _glfwPlatformCreateWindow(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig,
const _GLFWctxconfig* ctxconfig,
const _GLFWfbconfig* fbconfig)
{
window->wl.justCreated = GLFW_TRUE;
window->wl.transparent = fbconfig->transparent;
if (!createSurface(window, wndconfig))
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 (wndconfig->title)
window->wl.title = _glfw_strdup(wndconfig->title);
if (wndconfig->visible)
{
if (_glfw.wl.wmBase)
{
if (!createXdgSurface(window))
return GLFW_FALSE;
}
else
{
if (!createShellSurface(window))
return GLFW_FALSE;
}
window->wl.visible = GLFW_TRUE;
}
else
{
window->wl.xdg.surface = NULL;
window->wl.xdg.toplevel = NULL;
window->wl.shellSurface = NULL;
window->wl.visible = GLFW_FALSE;
}
window->wl.currentCursor = NULL;
window->wl.monitors = calloc(1, sizeof(_GLFWmonitor*));
window->wl.monitorsCount = 0;
window->wl.monitorsSize = 1;
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.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);
*width *= window->wl.scale;
*height *= window->wl.scale;
}
void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
int* left, int* top,
int* right, int* bottom)
{
if (window->decorated && !window->monitor)
{
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)
{
if (_glfw.wl.wmBase)
createXdgSurface(window);
else if (!window->wl.shellSurface)
createShellSurface(window);
window->wl.visible = GLFW_TRUE;
}
}
void _glfwPlatformHideWindow(_GLFWwindow* window)
{
if (window->wl.xdg.toplevel)
{
xdg_toplevel_destroy(window->wl.xdg.toplevel);
xdg_surface_destroy(window->wl.xdg.surface);
window->wl.xdg.toplevel = NULL;
window->wl.xdg.surface = NULL;
}
else if (window->wl.shellSurface)
{
wl_shell_surface_destroy(window->wl.shellSurface);
window->wl.shellSurface = NULL;
}
window->wl.visible = GLFW_FALSE;
}
void _glfwPlatformRequestWindowAttention(_GLFWwindow* window)
{
// TODO
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Window attention request not implemented yet");
}
int _glfwPlatformWindowBell(_GLFWwindow* window)
{
// TODO: Use an actual Wayland API to implement this when one becomes available
int fd = open("/dev/tty", O_WRONLY | O_CLOEXEC);
if (fd > -1) {
int ret = write(fd, "\x07", 1) == 1 ? GLFW_TRUE : GLFW_FALSE;
close(fd);
return ret;
}
return GLFW_FALSE;
}
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 (window->decorated)
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 _glfwPlatformPollEvents(void)
{
handleEvents(0);
}
void _glfwPlatformWaitEvents(void)
{
handleEvents(-1);
}
void _glfwPlatformWaitEventsTimeout(double timeout)
{
handleEvents(timeout);
}
void _glfwPlatformPostEmptyEvent(void)
{
wl_display_sync(_glfw.wl.display);
while (write(_glfw.wl.eventLoopData.wakeupFds[1], "w", 1) < 0 && errno == EINTR);
}
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)
{
return glfw_xkb_keysym_name(scancode);
}
int _glfwPlatformGetKeyScancode(int key)
{
return glfw_xkb_sym_for_key(key);
}
int _glfwPlatformCreateCursor(_GLFWcursor* cursor,
const GLFWimage* image,
int xhot, int yhot, int count)
{
cursor->wl.buffer = createShmBuffer(image);
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.image = standardCursor->images[0];
return GLFW_TRUE;
}
void _glfwPlatformDestroyCursor(_GLFWcursor* cursor)
{
// If it's a standard cursor we don't need to do anything here
if (cursor->wl.image)
return;
if (cursor->wl.buffer)
wl_buffer_destroy(cursor->wl.buffer);
}
static void handleRelativeMotion(void* data,
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 = data;
if (window->cursorMode != GLFW_CURSOR_DISABLED)
return;
_glfwInputCursorPos(window,
window->virtualCursorPosX + wl_fixed_to_double(dxUnaccel),
window->virtualCursorPosY + wl_fixed_to_double(dyUnaccel));
}
static const struct zwp_relative_pointer_v1_listener relativePointerListener = {
handleRelativeMotion
};
static void handleLocked(void* data,
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 handleUnlocked(void* data,
struct zwp_locked_pointer_v1* lockedPointer)
{
}
static const struct zwp_locked_pointer_v1_listener lockedPointerListener = {
handleLocked,
handleUnlocked
};
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.pointerSerial,
NULL, 0, 0);
}
static GLFWbool isPointerLocked(_GLFWwindow* window)
{
return window->wl.pointerLock.lockedPointer != NULL;
}
void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor)
{
struct wl_buffer* buffer;
struct wl_cursor* defaultCursor;
struct wl_cursor_image* image;
struct wl_surface* surface = _glfw.wl.cursorSurface;
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)
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)
image = cursor->wl.image;
else
{
defaultCursor = wl_cursor_theme_get_cursor(_glfw.wl.cursorTheme,
"left_ptr");
if (!defaultCursor)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Standard cursor not found");
return;
}
image = defaultCursor->images[0];
}
if (image)
{
buffer = wl_cursor_image_get_buffer(image);
if (!buffer)
return;
wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerSerial,
surface,
image->hotspot_x,
image->hotspot_y);
wl_surface_attach(surface, buffer, 0, 0);
wl_surface_damage(surface, 0, 0,
image->width, image->height);
wl_surface_commit(surface);
}
else
{
wl_pointer_set_cursor(_glfw.wl.pointer, _glfw.wl.pointerSerial,
surface,
cursor->wl.xhot,
cursor->wl.yhot);
wl_surface_attach(surface, cursor->wl.buffer, 0, 0);
wl_surface_damage(surface, 0, 0,
cursor->wl.width, cursor->wl.height);
wl_surface_commit(surface);
}
}
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.pointerSerial,
NULL, 0, 0);
}
}
void _glfwPlatformSetClipboardString(const char* string)
{
// TODO
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Clipboard setting not implemented yet");
}
const char* _glfwPlatformGetClipboardString(void)
{
// TODO
_glfwInputError(GLFW_PLATFORM_ERROR,
"Wayland: Clipboard getting not implemented yet");
return NULL;
}
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;
}
GLFWAPI int glfwGetXKBScancode(const char* keyName, GLFWbool caseSensitive) {
return glfw_xkb_keysym_from_name(keyName, caseSensitive);
}