[client] wayland: split Wayland display server into modules

The Wayland display server is getting unwieldy due to the sheer size.
To make it easier to edit in the future, I split it into many components
based on logical boundaries.
This commit is contained in:
Quantum 2021-02-20 01:23:48 -05:00 committed by Geoffrey McRae
parent 1ba1108099
commit 5649d1ad95
13 changed files with 1921 additions and 1405 deletions

View file

@ -10,7 +10,16 @@ pkg_check_modules(DISPLAYSERVER_Wayland_PKGCONFIG REQUIRED
#)
add_library(displayserver_Wayland STATIC
clipboard.c
cursor.c
gl.c
idle.c
input.c
poll.c
state.c
registry.c
wayland.c
window.c
)
target_link_libraries(displayserver_Wayland

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@ -0,0 +1,477 @@
/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2021 Guanzhong Chen (quantum2048@gmail.com)
Copyright (C) 2021 Tudor Brindus (contact@tbrindus.ca)
https://looking-glass.io
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "wayland.h"
#include <assert.h>
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/epoll.h>
#include <unistd.h>
#include <wayland-client.h>
#include "app.h"
#include "common/debug.h"
static const char * textMimetypes[] =
{
"text/plain",
"text/plain;charset=utf-8",
"TEXT",
"STRING",
"UTF8_STRING",
NULL,
};
static const char * pngMimetypes[] =
{
"image/png",
NULL,
};
static const char * bmpMimetypes[] =
{
"image/bmp",
"image/x-bmp",
"image/x-MS-bmp",
"image/x-win-bitmap",
NULL,
};
static const char * tiffMimetypes[] =
{
"image/tiff",
NULL,
};
static const char * jpegMimetypes[] =
{
"image/jpeg",
NULL,
};
static const char ** cbTypeToMimetypes(enum LG_ClipboardData type)
{
switch (type)
{
case LG_CLIPBOARD_DATA_TEXT:
return textMimetypes;
case LG_CLIPBOARD_DATA_PNG:
return pngMimetypes;
case LG_CLIPBOARD_DATA_BMP:
return bmpMimetypes;
case LG_CLIPBOARD_DATA_TIFF:
return tiffMimetypes;
case LG_CLIPBOARD_DATA_JPEG:
return jpegMimetypes;
default:
DEBUG_ERROR("invalid clipboard type");
abort();
}
}
static bool containsMimetype(const char ** mimetypes,
const char * needle)
{
for (const char ** mimetype = mimetypes; *mimetype; mimetype++)
if (!strcmp(needle, *mimetype))
return true;
return false;
}
static bool mimetypeEndswith(const char * mimetype, const char * what)
{
size_t mimetypeLen = strlen(mimetype);
size_t whatLen = strlen(what);
if (mimetypeLen < whatLen)
return false;
return !strcmp(mimetype + mimetypeLen - whatLen, what);
}
static bool isTextMimetype(const char * mimetype)
{
if (containsMimetype(textMimetypes, mimetype))
return true;
char * text = "text/";
if (!strncmp(mimetype, text, strlen(text)))
return true;
if (mimetypeEndswith(mimetype, "script") ||
mimetypeEndswith(mimetype, "xml") ||
mimetypeEndswith(mimetype, "yaml"))
return true;
if (strstr(mimetype, "json"))
return true;
return false;
}
static enum LG_ClipboardData mimetypeToCbType(const char * mimetype)
{
if (isTextMimetype(mimetype))
return LG_CLIPBOARD_DATA_TEXT;
if (containsMimetype(pngMimetypes, mimetype))
return LG_CLIPBOARD_DATA_PNG;
if (containsMimetype(bmpMimetypes, mimetype))
return LG_CLIPBOARD_DATA_BMP;
if (containsMimetype(tiffMimetypes, mimetype))
return LG_CLIPBOARD_DATA_TIFF;
if (containsMimetype(jpegMimetypes, mimetype))
return LG_CLIPBOARD_DATA_JPEG;
return LG_CLIPBOARD_DATA_NONE;
}
// Destination client handlers.
static void dataOfferHandleOffer(void * data, struct wl_data_offer * offer,
const char * mimetype)
{
enum LG_ClipboardData type = mimetypeToCbType(mimetype);
// We almost never prefer text/html, as that's used to represent rich text.
// Since we can't copy or paste rich text, we should instead prefer actual
// images or plain text.
if (type != LG_CLIPBOARD_DATA_NONE &&
(wlCb.pendingType == LG_CLIPBOARD_DATA_NONE ||
strstr(wlCb.pendingMimetype, "html")))
{
wlCb.pendingType = type;
if (wlCb.pendingMimetype)
free(wlCb.pendingMimetype);
wlCb.pendingMimetype = strdup(mimetype);
}
if (!strcmp(mimetype, wlCb.lgMimetype))
wlCb.isSelfCopy = true;
}
static void dataOfferHandleSourceActions(void * data,
struct wl_data_offer * offer, uint32_t sourceActions)
{
// Do nothing.
}
static void dataOfferHandleAction(void * data, struct wl_data_offer * offer,
uint32_t dndAction)
{
// Do nothing.
}
static const struct wl_data_offer_listener dataOfferListener = {
.offer = dataOfferHandleOffer,
.source_actions = dataOfferHandleSourceActions,
.action = dataOfferHandleAction,
};
static void dataDeviceHandleDataOffer(void * data,
struct wl_data_device * dataDevice, struct wl_data_offer * offer)
{
wlCb.pendingType = LG_CLIPBOARD_DATA_NONE;
wlCb.isSelfCopy = false;
wl_data_offer_add_listener(offer, &dataOfferListener, NULL);
}
static void clipboardReadCancel(struct ClipboardRead * data, bool freeBuf)
{
waylandEpollUnregister(data->fd);
close(data->fd);
wl_data_offer_destroy(data->offer);
if (freeBuf)
free(data->buf);
free(data);
wlCb.currentRead = NULL;
}
static void clipboardReadCallback(uint32_t events, void * opaque)
{
struct ClipboardRead * data = opaque;
if (events & EPOLLERR)
{
clipboardReadCancel(data, true);
return;
}
ssize_t result = read(data->fd, data->buf + data->numRead, data->size - data->numRead);
if (result < 0)
{
DEBUG_ERROR("Failed to read from clipboard: %s", strerror(errno));
clipboardReadCancel(data, true);
return;
}
if (result == 0)
{
data->buf[data->numRead] = 0;
wlCb.stashedType = data->type;
wlCb.stashedSize = data->numRead;
wlCb.stashedContents = data->buf;
clipboardReadCancel(data, false);
app_clipboardNotify(wlCb.stashedType, 0);
return;
}
data->numRead += result;
if (data->numRead >= data->size)
{
data->size *= 2;
void * nbuf = realloc(data->buf, data->size);
if (!nbuf) {
DEBUG_ERROR("Failed to realloc clipboard buffer: %s", strerror(errno));
clipboardReadCancel(data, true);
return;
}
data->buf = nbuf;
}
}
static void dataDeviceHandleSelection(void * opaque,
struct wl_data_device * dataDevice, struct wl_data_offer * offer)
{
if (wlCb.pendingType == LG_CLIPBOARD_DATA_NONE || wlCb.isSelfCopy || !offer)
return;
if (wlCb.currentRead)
clipboardReadCancel(wlCb.currentRead, true);
int fds[2];
if (pipe(fds) < 0)
{
DEBUG_ERROR("Failed to get a clipboard pipe: %s", strerror(errno));
abort();
}
wl_data_offer_receive(offer, wlCb.pendingMimetype, fds[1]);
close(fds[1]);
free(wlCb.pendingMimetype);
wlCb.pendingMimetype = NULL;
wl_display_roundtrip(wlWm.display);
if (wlCb.stashedContents)
{
free(wlCb.stashedContents);
wlCb.stashedContents = NULL;
}
struct ClipboardRead * data = malloc(sizeof(struct ClipboardRead));
if (!data)
{
DEBUG_ERROR("Failed to allocate memory to read clipboard");
close(fds[0]);
return;
}
data->fd = fds[0];
data->size = 4096;
data->numRead = 0;
data->buf = malloc(data->size);
data->offer = offer;
data->type = wlCb.pendingType;
if (!data->buf)
{
DEBUG_ERROR("Failed to allocate memory to receive clipboard data");
close(data->fd);
free(data);
return;
}
if (!waylandEpollRegister(data->fd, clipboardReadCallback, data, EPOLLIN))
{
DEBUG_ERROR("Failed to register clipboard read into epoll: %s", strerror(errno));
close(data->fd);
free(data->buf);
free(data);
}
wlCb.currentRead = data;
}
static const struct wl_data_device_listener dataDeviceListener = {
.data_offer = dataDeviceHandleDataOffer,
.selection = dataDeviceHandleSelection,
};
bool waylandCBInit(void)
{
memset(&wlCb, 0, sizeof(wlCb));
if (!wlWm.dataDeviceManager)
{
DEBUG_ERROR("Missing wl_data_device_manager interface");
return false;
}
wlCb.dataDevice = wl_data_device_manager_get_data_device(
wlWm.dataDeviceManager, wlWm.seat);
if (!wlCb.dataDevice)
{
DEBUG_ERROR("Failed to get data device");
return false;
}
wlCb.stashedType = LG_CLIPBOARD_DATA_NONE;
wl_data_device_add_listener(wlCb.dataDevice, &dataDeviceListener, NULL);
snprintf(wlCb.lgMimetype, sizeof(wlCb.lgMimetype),
"application/x-looking-glass-copy;pid=%d", getpid());
return true;
}
void waylandCBRequest(LG_ClipboardData type)
{
// We only notified once, so it must be this.
assert(type == wlCb.stashedType);
app_clipboardData(wlCb.stashedType, wlCb.stashedContents, wlCb.stashedSize);
}
struct ClipboardWrite
{
int fd;
size_t pos;
struct CountedBuffer * buffer;
};
static void clipboardWriteCallback(uint32_t events, void * opaque)
{
struct ClipboardWrite * data = opaque;
if (events & EPOLLERR)
goto error;
ssize_t written = write(data->fd, data->buffer->data + data->pos, data->buffer->size - data->pos);
if (written < 0)
{
if (errno != EPIPE)
DEBUG_ERROR("Failed to write clipboard data: %s", strerror(errno));
goto error;
}
data->pos += written;
if (data->pos < data->buffer->size)
return;
error:
waylandEpollUnregister(data->fd);
close(data->fd);
countedBufferRelease(&data->buffer);
free(data);
}
static void dataSourceHandleSend(void * data, struct wl_data_source * source,
const char * mimetype, int fd)
{
struct WCBTransfer * transfer = (struct WCBTransfer *) data;
if (containsMimetype(transfer->mimetypes, mimetype))
{
// Consider making this do non-blocking sends to not stall the Wayland
// event loop if it becomes a problem. This is "fine" in the sense that
// wl-copy also stalls like this, but it's not necessary.
fcntl(fd, F_SETFL, 0);
struct ClipboardWrite * data = malloc(sizeof(struct ClipboardWrite));
if (!data)
{
DEBUG_ERROR("Out of memory trying to allocate ClipboardWrite");
goto error;
}
data->fd = fd;
data->pos = 0;
data->buffer = transfer->data;
countedBufferAddRef(transfer->data);
waylandEpollRegister(fd, clipboardWriteCallback, data, EPOLLOUT);
return;
}
error:
close(fd);
}
static void dataSourceHandleCancelled(void * data,
struct wl_data_source * source)
{
struct WCBTransfer * transfer = (struct WCBTransfer *) data;
countedBufferRelease(&transfer->data);
free(transfer);
wl_data_source_destroy(source);
}
static const struct wl_data_source_listener dataSourceListener = {
.send = dataSourceHandleSend,
.cancelled = dataSourceHandleCancelled,
};
static void waylandCBReplyFn(void * opaque, LG_ClipboardData type,
uint8_t * data, uint32_t size)
{
struct WCBTransfer * transfer = malloc(sizeof(struct WCBTransfer));
if (!transfer)
{
DEBUG_ERROR("Out of memory when allocating WCBTransfer");
return;
}
transfer->mimetypes = cbTypeToMimetypes(type);
transfer->data = countedBufferNew(size);
if (!transfer->data)
{
DEBUG_ERROR("Out of memory when allocating clipboard buffer");
free(transfer);
return;
}
memcpy(transfer->data->data, data, size);
struct wl_data_source * source =
wl_data_device_manager_create_data_source(wlWm.dataDeviceManager);
wl_data_source_add_listener(source, &dataSourceListener, transfer);
for (const char ** mimetype = transfer->mimetypes; *mimetype; mimetype++)
wl_data_source_offer(source, *mimetype);
wl_data_source_offer(source, wlCb.lgMimetype);
wl_data_device_set_selection(wlCb.dataDevice, source,
wlWm.keyboardEnterSerial);
}
void waylandCBNotice(LG_ClipboardData type)
{
wlCb.haveRequest = true;
wlCb.type = type;
app_clipboardRequest(waylandCBReplyFn, NULL);
}
void waylandCBRelease(void)
{
wlCb.haveRequest = false;
}

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@ -0,0 +1,100 @@
/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2021 Guanzhong Chen (quantum2048@gmail.com)
Copyright (C) 2021 Tudor Brindus (contact@tbrindus.ca)
https://looking-glass.io
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define _GNU_SOURCE
#include "wayland.h"
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include <sys/mman.h>
#include <unistd.h>
#include <wayland-client.h>
#include "common/debug.h"
static const uint32_t cursorBitmap[] = {
0x000000, 0x000000, 0x000000, 0x000000,
0x000000, 0xFFFFFF, 0xFFFFFF, 0x000000,
0x000000, 0xFFFFFF, 0xFFFFFF, 0x000000,
0x000000, 0x000000, 0x000000, 0x000000,
};
static struct wl_buffer * createCursorBuffer(void)
{
int fd = memfd_create("lg-cursor", 0);
if (fd < 0)
{
DEBUG_ERROR("Failed to create cursor shared memory: %d", errno);
return NULL;
}
struct wl_buffer * result = NULL;
if (ftruncate(fd, sizeof cursorBitmap) < 0)
{
DEBUG_ERROR("Failed to ftruncate cursor shared memory: %d", errno);
goto fail;
}
void * shm_data = mmap(NULL, sizeof cursorBitmap, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (shm_data == MAP_FAILED)
{
DEBUG_ERROR("Failed to map memory for cursor: %d", errno);
goto fail;
}
struct wl_shm_pool * pool = wl_shm_create_pool(wlWm.shm, fd, sizeof cursorBitmap);
result = wl_shm_pool_create_buffer(pool, 0, 4, 4, 16, WL_SHM_FORMAT_XRGB8888);
wl_shm_pool_destroy(pool);
memcpy(shm_data, cursorBitmap, sizeof cursorBitmap);
munmap(shm_data, sizeof cursorBitmap);
fail:
close(fd);
return result;
}
bool waylandCursorInit(void)
{
if (!wlWm.compositor)
{
DEBUG_ERROR("Compositor missing wl_compositor, will not proceed");
return false;
}
struct wl_buffer * cursorBuffer = createCursorBuffer();
if (cursorBuffer)
{
wlWm.cursor = wl_compositor_create_surface(wlWm.compositor);
wl_surface_attach(wlWm.cursor, cursorBuffer, 0, 0);
wl_surface_commit(wlWm.cursor);
}
return true;
}
void waylandShowPointer(bool show)
{
wlWm.showPointer = show;
wl_pointer_set_cursor(wlWm.pointer, wlWm.pointerEnterSerial, show ? wlWm.cursor : NULL, 0, 0);
}

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@ -0,0 +1,171 @@
/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2021 Guanzhong Chen (quantum2048@gmail.com)
Copyright (C) 2021 Tudor Brindus (contact@tbrindus.ca)
https://looking-glass.io
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "wayland.h"
#include <stdbool.h>
#include <string.h>
#include <EGL/egl.h>
#include <wayland-client.h>
#include "app.h"
#include "common/debug.h"
#if defined(ENABLE_EGL) || defined(ENABLE_OPENGL)
#include "egl_dynprocs.h"
bool waylandEGLInit(int w, int h)
{
wlWm.eglWindow = wl_egl_window_create(wlWm.surface, w, h);
if (!wlWm.eglWindow)
{
DEBUG_ERROR("Failed to create EGL window");
return false;
}
return true;
}
EGLDisplay waylandGetEGLDisplay(void)
{
EGLNativeDisplayType native = (EGLNativeDisplayType) wlWm.display;
const char *early_exts = eglQueryString(NULL, EGL_EXTENSIONS);
if (strstr(early_exts, "EGL_KHR_platform_wayland") != NULL &&
g_egl_dynProcs.eglGetPlatformDisplay)
{
DEBUG_INFO("Using eglGetPlatformDisplay");
return g_egl_dynProcs.eglGetPlatformDisplay(EGL_PLATFORM_WAYLAND_KHR, native, NULL);
}
if (strstr(early_exts, "EGL_EXT_platform_wayland") != NULL &&
g_egl_dynProcs.eglGetPlatformDisplayEXT)
{
DEBUG_INFO("Using eglGetPlatformDisplayEXT");
return g_egl_dynProcs.eglGetPlatformDisplayEXT(EGL_PLATFORM_WAYLAND_EXT, native, NULL);
}
DEBUG_INFO("Using eglGetDisplay");
return eglGetDisplay(native);
}
void waylandEGLSwapBuffers(EGLDisplay display, EGLSurface surface)
{
eglSwapBuffers(display, surface);
if (wlWm.resizeSerial)
{
wl_egl_window_resize(wlWm.eglWindow, wlWm.width, wlWm.height, 0, 0);
struct wl_region * region = wl_compositor_create_region(wlWm.compositor);
wl_region_add(region, 0, 0, wlWm.width, wlWm.height);
wl_surface_set_opaque_region(wlWm.surface, region);
wl_region_destroy(region);
app_handleResizeEvent(wlWm.width, wlWm.height, (struct Border) {0, 0, 0, 0});
xdg_surface_ack_configure(wlWm.xdgSurface, wlWm.resizeSerial);
wlWm.resizeSerial = 0;
}
}
#endif
#ifdef ENABLE_EGL
EGLNativeWindowType waylandGetEGLNativeWindow(void)
{
return (EGLNativeWindowType) wlWm.eglWindow;
}
#endif
#ifdef ENABLE_OPENGL
bool waylandOpenGLInit(void)
{
EGLint attr[] =
{
EGL_BUFFER_SIZE , 24,
EGL_CONFORMANT , EGL_OPENGL_BIT,
EGL_RENDERABLE_TYPE , EGL_OPENGL_BIT,
EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER,
EGL_RED_SIZE , 8,
EGL_GREEN_SIZE , 8,
EGL_BLUE_SIZE , 8,
EGL_SAMPLE_BUFFERS , 0,
EGL_SAMPLES , 0,
EGL_NONE
};
wlWm.glDisplay = waylandGetEGLDisplay();
int maj, min;
if (!eglInitialize(wlWm.glDisplay, &maj, &min))
{
DEBUG_ERROR("Unable to initialize EGL");
return false;
}
if (wlWm.glDisplay == EGL_NO_DISPLAY)
{
DEBUG_ERROR("Failed to get EGL display (eglError: 0x%x)", eglGetError());
return false;
}
EGLint num_config;
if (!eglChooseConfig(wlWm.glDisplay, attr, &wlWm.glConfig, 1, &num_config))
{
DEBUG_ERROR("Failed to choose config (eglError: 0x%x)", eglGetError());
return false;
}
wlWm.glSurface = eglCreateWindowSurface(wlWm.glDisplay, wlWm.glConfig, wlWm.eglWindow, NULL);
if (wlWm.glSurface == EGL_NO_SURFACE)
{
DEBUG_ERROR("Failed to create EGL surface (eglError: 0x%x)", eglGetError());
return false;
}
return true;
}
LG_DSGLContext waylandGLCreateContext(void)
{
eglBindAPI(EGL_OPENGL_API);
return eglCreateContext(wlWm.glDisplay, wlWm.glConfig, EGL_NO_CONTEXT, NULL);
}
void waylandGLDeleteContext(LG_DSGLContext context)
{
eglDestroyContext(wlWm.glDisplay, context);
}
void waylandGLMakeCurrent(LG_DSGLContext context)
{
eglMakeCurrent(wlWm.glDisplay, wlWm.glSurface, wlWm.glSurface, context);
}
void waylandGLSetSwapInterval(int interval)
{
eglSwapInterval(wlWm.glDisplay, interval);
}
void waylandGLSwapBuffers(void)
{
waylandEGLSwapBuffers(wlWm.glDisplay, wlWm.glSurface);
}
#endif

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@ -0,0 +1,59 @@
/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2021 Guanzhong Chen (quantum2048@gmail.com)
Copyright (C) 2021 Tudor Brindus (contact@tbrindus.ca)
https://looking-glass.io
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "wayland.h"
#include <stdbool.h>
#include <wayland-client.h>
#include "common/debug.h"
bool waylandIdleInit(void)
{
if (!wlWm.idleInhibitManager)
DEBUG_WARN("zwp_idle_inhibit_manager_v1 not exported by compositor, will "
"not be able to suppress idle states");
return true;
}
void waylandIdleFree(void)
{
if (wlWm.idleInhibitManager)
{
waylandUninhibitIdle();
zwp_idle_inhibit_manager_v1_destroy(wlWm.idleInhibitManager);
}
}
void waylandInhibitIdle(void)
{
if (wlWm.idleInhibitManager && !wlWm.idleInhibitor)
wlWm.idleInhibitor = zwp_idle_inhibit_manager_v1_create_inhibitor(
wlWm.idleInhibitManager, wlWm.surface);
}
void waylandUninhibitIdle(void)
{
if (wlWm.idleInhibitor)
{
zwp_idle_inhibitor_v1_destroy(wlWm.idleInhibitor);
wlWm.idleInhibitor = NULL;
}
}

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@ -0,0 +1,393 @@
/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2021 Guanzhong Chen (quantum2048@gmail.com)
Copyright (C) 2021 Tudor Brindus (contact@tbrindus.ca)
https://looking-glass.io
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "wayland.h"
#include <stdbool.h>
#include <string.h>
#include <unistd.h>
#include <wayland-client.h>
#include "app.h"
#include "common/debug.h"
// Mouse-handling listeners.
static void pointerMotionHandler(void * data, struct wl_pointer * pointer,
uint32_t serial, wl_fixed_t sxW, wl_fixed_t syW)
{
wlWm.cursorX = wl_fixed_to_double(sxW);
wlWm.cursorY = wl_fixed_to_double(syW);
app_updateCursorPos(wlWm.cursorX, wlWm.cursorY);
if (!wlWm.warpSupport && !wlWm.relativePointer)
app_handleMouseBasic();
}
static void pointerEnterHandler(void * data, struct wl_pointer * pointer,
uint32_t serial, struct wl_surface * surface, wl_fixed_t sxW,
wl_fixed_t syW)
{
app_handleEnterEvent(true);
wl_pointer_set_cursor(pointer, serial, wlWm.showPointer ? wlWm.cursor : NULL, 0, 0);
wlWm.pointerEnterSerial = serial;
wlWm.cursorX = wl_fixed_to_double(sxW);
wlWm.cursorY = wl_fixed_to_double(syW);
app_updateCursorPos(wlWm.cursorX, wlWm.cursorY);
if (wlWm.warpSupport)
{
app_handleMouseRelative(0.0, 0.0, 0.0, 0.0);
return;
}
if (wlWm.relativePointer)
return;
app_resyncMouseBasic();
app_handleMouseBasic();
}
static void pointerLeaveHandler(void * data, struct wl_pointer * pointer,
uint32_t serial, struct wl_surface * surface)
{
app_handleEnterEvent(false);
}
static void pointerAxisHandler(void * data, struct wl_pointer * pointer,
uint32_t serial, uint32_t axis, wl_fixed_t value)
{
int button = value > 0 ?
5 /* SPICE_MOUSE_BUTTON_DOWN */ :
4 /* SPICE_MOUSE_BUTTON_UP */;
app_handleButtonPress(button);
app_handleButtonRelease(button);
}
static int mapWaylandToSpiceButton(uint32_t button)
{
switch (button)
{
case BTN_LEFT:
return 1; // SPICE_MOUSE_BUTTON_LEFT
case BTN_MIDDLE:
return 2; // SPICE_MOUSE_BUTTON_MIDDLE
case BTN_RIGHT:
return 3; // SPICE_MOUSE_BUTTON_RIGHT
case BTN_SIDE:
return 6; // SPICE_MOUSE_BUTTON_SIDE
case BTN_EXTRA:
return 7; // SPICE_MOUSE_BUTTON_EXTRA
}
return 0; // SPICE_MOUSE_BUTTON_INVALID
}
static void pointerButtonHandler(void *data, struct wl_pointer *pointer,
uint32_t serial, uint32_t time, uint32_t button, uint32_t stateW)
{
button = mapWaylandToSpiceButton(button);
if (stateW == WL_POINTER_BUTTON_STATE_PRESSED)
app_handleButtonPress(button);
else
app_handleButtonRelease(button);
}
static const struct wl_pointer_listener pointerListener = {
.enter = pointerEnterHandler,
.leave = pointerLeaveHandler,
.motion = pointerMotionHandler,
.button = pointerButtonHandler,
.axis = pointerAxisHandler,
};
static void relativePointerMotionHandler(void * data,
struct zwp_relative_pointer_v1 *pointer, uint32_t timeHi, uint32_t timeLo,
wl_fixed_t dxW, wl_fixed_t dyW, wl_fixed_t dxUnaccelW,
wl_fixed_t dyUnaccelW)
{
wlWm.cursorX += wl_fixed_to_double(dxW);
wlWm.cursorY += wl_fixed_to_double(dyW);
app_updateCursorPos(wlWm.cursorX, wlWm.cursorY);
app_handleMouseRelative(
wl_fixed_to_double(dxW),
wl_fixed_to_double(dyW),
wl_fixed_to_double(dxUnaccelW),
wl_fixed_to_double(dyUnaccelW));
}
static const struct zwp_relative_pointer_v1_listener relativePointerListener = {
.relative_motion = relativePointerMotionHandler,
};
// Keyboard-handling listeners.
static void keyboardKeymapHandler(void * data, struct wl_keyboard * keyboard,
uint32_t format, int fd, uint32_t size)
{
close(fd);
}
static void keyboardEnterHandler(void * data, struct wl_keyboard * keyboard,
uint32_t serial, struct wl_surface * surface, struct wl_array * keys)
{
app_handleFocusEvent(true);
wlWm.keyboardEnterSerial = serial;
uint32_t * key;
wl_array_for_each(key, keys)
app_handleKeyPress(*key);
}
static void keyboardLeaveHandler(void * data, struct wl_keyboard * keyboard,
uint32_t serial, struct wl_surface * surface)
{
app_handleFocusEvent(false);
}
static void keyboardKeyHandler(void * data, struct wl_keyboard * keyboard,
uint32_t serial, uint32_t time, uint32_t key, uint32_t state)
{
if (state == WL_KEYBOARD_KEY_STATE_PRESSED)
app_handleKeyPress(key);
else
app_handleKeyRelease(key);
}
static void keyboardModifiersHandler(void * data,
struct wl_keyboard * keyboard, uint32_t serial, uint32_t modsDepressed,
uint32_t modsLatched, uint32_t modsLocked, uint32_t group)
{
// Do nothing.
}
static const struct wl_keyboard_listener keyboardListener = {
.keymap = keyboardKeymapHandler,
.enter = keyboardEnterHandler,
.leave = keyboardLeaveHandler,
.key = keyboardKeyHandler,
.modifiers = keyboardModifiersHandler,
};
// Seat-handling listeners.
static void handlePointerCapability(uint32_t capabilities)
{
bool hasPointer = capabilities & WL_SEAT_CAPABILITY_POINTER;
if (!hasPointer && wlWm.pointer)
{
wl_pointer_destroy(wlWm.pointer);
wlWm.pointer = NULL;
}
else if (hasPointer && !wlWm.pointer)
{
wlWm.pointer = wl_seat_get_pointer(wlWm.seat);
wl_pointer_add_listener(wlWm.pointer, &pointerListener, NULL);
}
}
static void handleKeyboardCapability(uint32_t capabilities)
{
bool hasKeyboard = capabilities & WL_SEAT_CAPABILITY_KEYBOARD;
if (!hasKeyboard && wlWm.keyboard)
{
wl_keyboard_destroy(wlWm.keyboard);
wlWm.keyboard = NULL;
}
else if (hasKeyboard && !wlWm.keyboard)
{
wlWm.keyboard = wl_seat_get_keyboard(wlWm.seat);
wl_keyboard_add_listener(wlWm.keyboard, &keyboardListener, NULL);
}
}
static void seatCapabilitiesHandler(void * data, struct wl_seat * seat,
uint32_t capabilities)
{
wlWm.capabilities = capabilities;
handlePointerCapability(capabilities);
handleKeyboardCapability(capabilities);
}
static void seatNameHandler(void * data, struct wl_seat * seat,
const char * name)
{
// Do nothing.
}
static const struct wl_seat_listener seatListener = {
.capabilities = seatCapabilitiesHandler,
.name = seatNameHandler,
};
bool waylandInputInit(void)
{
if (!wlWm.seat)
{
DEBUG_ERROR("Compositor missing wl_seat, will not proceed");
return false;
}
if (wlWm.warpSupport && (!wlWm.relativePointerManager || !wlWm.pointerConstraints))
{
DEBUG_WARN("Cursor warp is requested, but cannot be honoured due to lack "
"of zwp_relative_pointer_manager_v1 or zwp_pointer_constraints_v1");
wlWm.warpSupport = false;
}
if (!wlWm.relativePointerManager)
DEBUG_WARN("zwp_relative_pointer_manager_v1 not exported by compositor, "
"mouse will not be captured");
if (!wlWm.pointerConstraints)
DEBUG_WARN("zwp_pointer_constraints_v1 not exported by compositor, mouse "
"will not be captured");
if (!wlWm.keyboardInhibitManager)
DEBUG_WARN("zwp_keyboard_shortcuts_inhibit_manager_v1 not exported by "
"compositor, keyboard will not be grabbed");
wl_seat_add_listener(wlWm.seat, &seatListener, NULL);
wl_display_roundtrip(wlWm.display);
if (wlWm.warpSupport)
{
wlWm.relativePointer =
zwp_relative_pointer_manager_v1_get_relative_pointer(
wlWm.relativePointerManager, wlWm.pointer);
zwp_relative_pointer_v1_add_listener(wlWm.relativePointer,
&relativePointerListener, NULL);
}
return true;
}
void waylandInputFree(void)
{
waylandUngrabPointer();
wl_pointer_destroy(wlWm.pointer);
wl_keyboard_destroy(wlWm.keyboard);
wl_seat_destroy(wlWm.seat);
}
void waylandGrabPointer(void)
{
if (!wlWm.relativePointerManager || !wlWm.pointerConstraints)
return;
if (!wlWm.warpSupport && !wlWm.relativePointer)
{
wlWm.relativePointer =
zwp_relative_pointer_manager_v1_get_relative_pointer(
wlWm.relativePointerManager, wlWm.pointer);
zwp_relative_pointer_v1_add_listener(wlWm.relativePointer,
&relativePointerListener, NULL);
}
if (!wlWm.confinedPointer)
{
wlWm.confinedPointer = zwp_pointer_constraints_v1_confine_pointer(
wlWm.pointerConstraints, wlWm.surface, wlWm.pointer, NULL,
ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT);
}
}
void waylandUngrabPointer(void)
{
if (wlWm.confinedPointer)
{
zwp_confined_pointer_v1_destroy(wlWm.confinedPointer);
wlWm.confinedPointer = NULL;
}
if (!wlWm.warpSupport)
{
if (!wlWm.relativePointer)
{
wlWm.relativePointer =
zwp_relative_pointer_manager_v1_get_relative_pointer(
wlWm.relativePointerManager, wlWm.pointer);
zwp_relative_pointer_v1_add_listener(wlWm.relativePointer,
&relativePointerListener, NULL);
}
app_resyncMouseBasic();
app_handleMouseBasic();
}
}
void waylandGrabKeyboard(void)
{
if (wlWm.keyboardInhibitManager && !wlWm.keyboardInhibitor)
{
wlWm.keyboardInhibitor = zwp_keyboard_shortcuts_inhibit_manager_v1_inhibit_shortcuts(
wlWm.keyboardInhibitManager, wlWm.surface, wlWm.seat);
}
}
void waylandUngrabKeyboard(void)
{
if (wlWm.keyboardInhibitor)
{
zwp_keyboard_shortcuts_inhibitor_v1_destroy(wlWm.keyboardInhibitor);
wlWm.keyboardInhibitor = NULL;
}
}
void waylandWarpPointer(int x, int y, bool exiting)
{
if (x < 0) x = 0;
else if (x >= wlWm.width) x = wlWm.width - 1;
if (y < 0) y = 0;
else if (y >= wlWm.height) y = wlWm.height - 1;
struct wl_region * region = wl_compositor_create_region(wlWm.compositor);
wl_region_add(region, x, y, 1, 1);
if (wlWm.confinedPointer)
{
zwp_confined_pointer_v1_set_region(wlWm.confinedPointer, region);
wl_surface_commit(wlWm.surface);
zwp_confined_pointer_v1_set_region(wlWm.confinedPointer, NULL);
}
else
{
struct zwp_confined_pointer_v1 * confine;
confine = zwp_pointer_constraints_v1_confine_pointer(
wlWm.pointerConstraints, wlWm.surface, wlWm.pointer, region,
ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT);
wl_surface_commit(wlWm.surface);
zwp_confined_pointer_v1_destroy(confine);
}
wl_surface_commit(wlWm.surface);
wl_region_destroy(region);
}
void waylandRealignPointer(void)
{
if (!wlWm.warpSupport)
app_resyncMouseBasic();
}

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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2021 Guanzhong Chen (quantum2048@gmail.com)
Copyright (C) 2021 Tudor Brindus (contact@tbrindus.ca)
https://looking-glass.io
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "wayland.h"
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include <sys/epoll.h>
#include <wayland-client.h>
#include "common/debug.h"
#include "common/locking.h"
#define EPOLL_EVENTS 10 // Maximum number of fds we can process at once in waylandWait
static void waylandDisplayCallback(uint32_t events, void * opaque)
{
if (events & EPOLLERR)
wl_display_cancel_read(wlWm.display);
else
wl_display_read_events(wlWm.display);
wl_display_dispatch_pending(wlWm.display);
}
bool waylandPollInit(void)
{
wlWm.epollFd = epoll_create1(EPOLL_CLOEXEC);
if (wlWm.epollFd < 0)
{
DEBUG_ERROR("Failed to initialize epoll: %s", strerror(errno));
return false;
}
wl_list_init(&wlWm.poll);
wl_list_init(&wlWm.pollFree);
LG_LOCK_INIT(wlWm.pollLock);
LG_LOCK_INIT(wlWm.pollFreeLock);
wlWm.displayFd = wl_display_get_fd(wlWm.display);
if (!waylandEpollRegister(wlWm.displayFd, waylandDisplayCallback, NULL, EPOLLIN))
{
DEBUG_ERROR("Failed register display to epoll: %s", strerror(errno));
return false;
}
return true;
}
void waylandWait(unsigned int time)
{
while (wl_display_prepare_read(wlWm.display))
wl_display_dispatch_pending(wlWm.display);
wl_display_flush(wlWm.display);
struct epoll_event events[EPOLL_EVENTS];
int count;
if ((count = epoll_wait(wlWm.epollFd, events, EPOLL_EVENTS, time)) < 0)
{
if (errno != EINTR)
DEBUG_INFO("epoll failed: %s", strerror(errno));
wl_display_cancel_read(wlWm.display);
return;
}
bool sawDisplay = false;
for (int i = 0; i < count; ++i) {
struct WaylandPoll * poll = events[i].data.ptr;
if (!poll->removed)
poll->callback(events[i].events, poll->opaque);
if (poll->fd == wlWm.displayFd)
sawDisplay = true;
}
if (!sawDisplay)
wl_display_cancel_read(wlWm.display);
INTERLOCKED_SECTION(wlWm.pollFreeLock,
{
struct WaylandPoll * node;
struct WaylandPoll * temp;
wl_list_for_each_safe(node, temp, &wlWm.pollFree, link)
{
wl_list_remove(&node->link);
free(node);
}
});
}
static void waylandEpollRemoveNode(struct WaylandPoll * node)
{
INTERLOCKED_SECTION(wlWm.pollLock,
{
wl_list_remove(&node->link);
});
}
bool waylandEpollRegister(int fd, WaylandPollCallback callback, void * opaque, uint32_t events)
{
struct WaylandPoll * node = malloc(sizeof(struct WaylandPoll));
if (!node)
return false;
node->fd = fd;
node->removed = false;
node->callback = callback;
node->opaque = opaque;
INTERLOCKED_SECTION(wlWm.pollLock,
{
wl_list_insert(&wlWm.poll, &node->link);
});
if (epoll_ctl(wlWm.epollFd, EPOLL_CTL_ADD, fd, &(struct epoll_event) {
.events = events,
.data = (epoll_data_t) { .ptr = node },
}) < 0)
{
waylandEpollRemoveNode(node);
free(node);
return false;
}
return true;
}
bool waylandEpollUnregister(int fd)
{
struct WaylandPoll * node = NULL;
INTERLOCKED_SECTION(wlWm.pollLock,
{
wl_list_for_each(node, &wlWm.poll, link)
{
if (node->fd == fd)
break;
}
});
if (!node)
{
DEBUG_ERROR("Attempt to unregister a fd that was not registered: %d", fd);
return false;
}
node->removed = true;
if (epoll_ctl(wlWm.epollFd, EPOLL_CTL_DEL, fd, NULL) < 0)
{
DEBUG_ERROR("Failed to unregistered from epoll: %s", strerror(errno));
return false;
}
waylandEpollRemoveNode(node);
INTERLOCKED_SECTION(wlWm.pollFreeLock,
{
wl_list_insert(&wlWm.pollFree, &node->link);
});
return true;
}

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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2021 Guanzhong Chen (quantum2048@gmail.com)
Copyright (C) 2021 Tudor Brindus (contact@tbrindus.ca)
https://looking-glass.io
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "wayland.h"
#include <stdbool.h>
#include <string.h>
#include <wayland-client.h>
#include "common/debug.h"
static void registryGlobalHandler(void * data, struct wl_registry * registry,
uint32_t name, const char * interface, uint32_t version)
{
if (!strcmp(interface, wl_seat_interface.name) && !wlWm.seat)
wlWm.seat = wl_registry_bind(wlWm.registry, name, &wl_seat_interface, 1);
else if (!strcmp(interface, wl_shm_interface.name))
wlWm.shm = wl_registry_bind(wlWm.registry, name, &wl_shm_interface, 1);
else if (!strcmp(interface, wl_compositor_interface.name))
wlWm.compositor = wl_registry_bind(wlWm.registry, name, &wl_compositor_interface, 4);
else if (!strcmp(interface, xdg_wm_base_interface.name))
wlWm.xdgWmBase = wl_registry_bind(wlWm.registry, name, &xdg_wm_base_interface, 1);
else if (!strcmp(interface, zxdg_decoration_manager_v1_interface.name))
wlWm.xdgDecorationManager = wl_registry_bind(wlWm.registry, name,
&zxdg_decoration_manager_v1_interface, 1);
else if (!strcmp(interface, zwp_relative_pointer_manager_v1_interface.name))
wlWm.relativePointerManager = wl_registry_bind(wlWm.registry, name,
&zwp_relative_pointer_manager_v1_interface, 1);
else if (!strcmp(interface, zwp_pointer_constraints_v1_interface.name))
wlWm.pointerConstraints = wl_registry_bind(wlWm.registry, name,
&zwp_pointer_constraints_v1_interface, 1);
else if (!strcmp(interface, zwp_keyboard_shortcuts_inhibit_manager_v1_interface.name))
wlWm.keyboardInhibitManager = wl_registry_bind(wlWm.registry, name,
&zwp_keyboard_shortcuts_inhibit_manager_v1_interface, 1);
else if (!strcmp(interface, wl_data_device_manager_interface.name))
wlWm.dataDeviceManager = wl_registry_bind(wlWm.registry, name,
&wl_data_device_manager_interface, 3);
else if (!strcmp(interface, zwp_idle_inhibit_manager_v1_interface.name))
wlWm.idleInhibitManager = wl_registry_bind(wlWm.registry, name,
&zwp_idle_inhibit_manager_v1_interface, 1);
}
static void registryGlobalRemoveHandler(void * data,
struct wl_registry * registry, uint32_t name)
{
// Do nothing.
}
static const struct wl_registry_listener registryListener = {
.global = registryGlobalHandler,
.global_remove = registryGlobalRemoveHandler,
};
bool waylandRegistryInit(void)
{
wlWm.registry = wl_display_get_registry(wlWm.display);
if (!wlWm.registry)
{
DEBUG_ERROR("Unable to find wl_registry");
return false;
}
wl_registry_add_listener(wlWm.registry, &registryListener, NULL);
wl_display_roundtrip(wlWm.display);
return true;
}
void waylandRegistryFree(void)
{
wl_registry_destroy(wlWm.registry);
}

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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2021 Guanzhong Chen (quantum2048@gmail.com)
Copyright (C) 2021 Tudor Brindus (contact@tbrindus.ca)
https://looking-glass.io
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "wayland.h"
struct WaylandDSState wlWm;
struct WCBState wlCb;

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/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2021 Guanzhong Chen (quantum2048@gmail.com)
Copyright (C) 2021 Tudor Brindus (contact@tbrindus.ca)
https://looking-glass.io
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdbool.h>
#include <sys/types.h>
#include <wayland-client.h>
#if defined(ENABLE_EGL) || defined(ENABLE_OPENGL)
# include <wayland-egl.h>
# include <EGL/egl.h>
# include <EGL/eglext.h>
#endif
#include "common/locking.h"
#include "common/countedbuffer.h"
#include "interface/displayserver.h"
#include "wayland-xdg-shell-client-protocol.h"
#include "wayland-xdg-decoration-unstable-v1-client-protocol.h"
#include "wayland-keyboard-shortcuts-inhibit-unstable-v1-client-protocol.h"
#include "wayland-pointer-constraints-unstable-v1-client-protocol.h"
#include "wayland-relative-pointer-unstable-v1-client-protocol.h"
#include "wayland-idle-inhibit-unstable-v1-client-protocol.h"
typedef void (*WaylandPollCallback)(uint32_t events, void * opaque);
struct WaylandPoll
{
int fd;
bool removed;
WaylandPollCallback callback;
void * opaque;
struct wl_list link;
};
struct WaylandDSState
{
bool pointerGrabbed;
bool keyboardGrabbed;
struct wl_display * display;
struct wl_surface * surface;
struct wl_registry * registry;
struct wl_seat * seat;
struct wl_shm * shm;
struct wl_compositor * compositor;
int32_t width, height;
bool fullscreen;
uint32_t resizeSerial;
bool configured;
bool warpSupport;
double cursorX, cursorY;
#ifdef ENABLE_EGL
struct wl_egl_window * eglWindow;
#endif
#ifdef ENABLE_OPENGL
EGLDisplay glDisplay;
EGLConfig glConfig;
EGLSurface glSurface;
#endif
struct xdg_wm_base * xdgWmBase;
struct xdg_surface * xdgSurface;
struct xdg_toplevel * xdgToplevel;
struct zxdg_decoration_manager_v1 * xdgDecorationManager;
struct zxdg_toplevel_decoration_v1 * xdgToplevelDecoration;
struct wl_surface * cursor;
struct wl_data_device_manager * dataDeviceManager;
uint32_t capabilities;
struct wl_keyboard * keyboard;
struct zwp_keyboard_shortcuts_inhibit_manager_v1 * keyboardInhibitManager;
struct zwp_keyboard_shortcuts_inhibitor_v1 * keyboardInhibitor;
uint32_t keyboardEnterSerial;
struct wl_pointer * pointer;
struct zwp_relative_pointer_manager_v1 * relativePointerManager;
struct zwp_pointer_constraints_v1 * pointerConstraints;
struct zwp_relative_pointer_v1 * relativePointer;
struct zwp_confined_pointer_v1 * confinedPointer;
bool showPointer;
uint32_t pointerEnterSerial;
struct zwp_idle_inhibit_manager_v1 * idleInhibitManager;
struct zwp_idle_inhibitor_v1 * idleInhibitor;
struct wl_list poll; // WaylandPoll::link
struct wl_list pollFree; // WaylandPoll::link
LG_Lock pollLock;
LG_Lock pollFreeLock;
int epollFd;
int displayFd;
};
struct WCBTransfer
{
struct CountedBuffer * data;
const char ** mimetypes;
};
struct ClipboardRead
{
int fd;
size_t size;
size_t numRead;
uint8_t * buf;
enum LG_ClipboardData type;
struct wl_data_offer * offer;
};
struct WCBState
{
struct wl_data_device * dataDevice;
char lgMimetype[64];
enum LG_ClipboardData pendingType;
char * pendingMimetype;
bool isSelfCopy;
enum LG_ClipboardData stashedType;
uint8_t * stashedContents;
ssize_t stashedSize;
bool haveRequest;
LG_ClipboardData type;
struct ClipboardRead * currentRead;
};
extern struct WaylandDSState wlWm;
extern struct WCBState wlCb;
// clipboard module
bool waylandCBInit(void);
void waylandCBRequest(LG_ClipboardData type);
void waylandCBNotice(LG_ClipboardData type);
void waylandCBRelease(void);
// cursor module
bool waylandCursorInit(void);
void waylandShowPointer(bool show);
// gl module
#if defined(ENABLE_EGL) || defined(ENABLE_OPENGL)
bool waylandEGLInit(int w, int h);
EGLDisplay waylandGetEGLDisplay(void);
void waylandEGLSwapBuffers(EGLDisplay display, EGLSurface surface);
#endif
#ifdef ENABLE_EGL
EGLNativeWindowType waylandGetEGLNativeWindow(void);
#endif
#ifdef ENABLE_OPENGL
bool waylandOpenGLInit(void);
LG_DSGLContext waylandGLCreateContext(void);
void waylandGLDeleteContext(LG_DSGLContext context);
void waylandGLMakeCurrent(LG_DSGLContext context);
void waylandGLSetSwapInterval(int interval);
void waylandGLSwapBuffers(void);
#endif
// idle module
bool waylandIdleInit(void);
void waylandIdleFree(void);
void waylandInhibitIdle(void);
void waylandUninhibitIdle(void);
// input module
bool waylandInputInit(void);
void waylandInputFree(void);
void waylandGrabKeyboard(void);
void waylandGrabPointer(void);
void waylandUngrabKeyboard(void);
void waylandUngrabPointer(void);
void waylandRealignPointer(void);
void waylandWarpPointer(int x, int y, bool exiting);
// poll module
bool waylandPollInit(void);
void waylandWait(unsigned int time);
bool waylandEpollRegister(int fd, WaylandPollCallback callback, void * opaque, uint32_t events);
bool waylandEpollUnregister(int fd);
// registry module
bool waylandRegistryInit(void);
void waylandRegistryFree(void);
// window module
bool waylandWindowInit(const char * title, bool fullscreen, bool maximize, bool borderless);
void waylandWindowFree(void);
void waylandSetWindowSize(int x, int y);
void waylandSetFullscreen(bool fs);
bool waylandGetFullscreen(void);
bool waylandIsValidPointerPos(int x, int y);

View file

@ -0,0 +1,171 @@
/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2021 Guanzhong Chen (quantum2048@gmail.com)
Copyright (C) 2021 Tudor Brindus (contact@tbrindus.ca)
https://looking-glass.io
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "wayland.h"
#include <stdbool.h>
#include <string.h>
#include <wayland-client.h>
#include "app.h"
#include "common/debug.h"
// XDG WM base listeners.
static void xdgWmBasePing(void * data, struct xdg_wm_base * xdgWmBase, uint32_t serial)
{
xdg_wm_base_pong(xdgWmBase, serial);
}
static const struct xdg_wm_base_listener xdgWmBaseListener = {
.ping = xdgWmBasePing,
};
// Surface-handling listeners.
static void xdgSurfaceConfigure(void * data, struct xdg_surface * xdgSurface,
uint32_t serial)
{
if (wlWm.configured)
wlWm.resizeSerial = serial;
else
{
xdg_surface_ack_configure(xdgSurface, serial);
wlWm.configured = true;
}
}
static const struct xdg_surface_listener xdgSurfaceListener = {
.configure = xdgSurfaceConfigure,
};
// XDG Surface listeners.
static void xdgToplevelConfigure(void * data, struct xdg_toplevel * xdgToplevel,
int32_t width, int32_t height, struct wl_array * states)
{
wlWm.width = width;
wlWm.height = height;
wlWm.fullscreen = false;
enum xdg_toplevel_state * state;
wl_array_for_each(state, states)
{
if (*state == XDG_TOPLEVEL_STATE_FULLSCREEN)
wlWm.fullscreen = true;
}
}
static void xdgToplevelClose(void * data, struct xdg_toplevel * xdgToplevel)
{
app_handleCloseEvent();
}
static const struct xdg_toplevel_listener xdgToplevelListener = {
.configure = xdgToplevelConfigure,
.close = xdgToplevelClose,
};
bool waylandWindowInit(const char * title, bool fullscreen, bool maximize, bool borderless)
{
if (!wlWm.compositor)
{
DEBUG_ERROR("Compositor missing wl_compositor, will not proceed");
return false;
}
if (!wlWm.xdgWmBase)
{
DEBUG_ERROR("Compositor missing xdg_wm_base, will not proceed");
return false;
}
xdg_wm_base_add_listener(wlWm.xdgWmBase, &xdgWmBaseListener, NULL);
//wl_display_roundtrip(wlWm.display);
wlWm.surface = wl_compositor_create_surface(wlWm.compositor);
if (!wlWm.surface)
{
DEBUG_ERROR("Failed to create wl_surface");
return false;
}
wlWm.xdgSurface = xdg_wm_base_get_xdg_surface(wlWm.xdgWmBase, wlWm.surface);
xdg_surface_add_listener(wlWm.xdgSurface, &xdgSurfaceListener, NULL);
wlWm.xdgToplevel = xdg_surface_get_toplevel(wlWm.xdgSurface);
xdg_toplevel_add_listener(wlWm.xdgToplevel, &xdgToplevelListener, NULL);
xdg_toplevel_set_title(wlWm.xdgToplevel, title);
xdg_toplevel_set_app_id(wlWm.xdgToplevel, "looking-glass-client");
if (fullscreen)
xdg_toplevel_set_fullscreen(wlWm.xdgToplevel, NULL);
if (maximize)
xdg_toplevel_set_maximized(wlWm.xdgToplevel);
wl_surface_commit(wlWm.surface);
if (wlWm.xdgDecorationManager)
{
wlWm.xdgToplevelDecoration = zxdg_decoration_manager_v1_get_toplevel_decoration(
wlWm.xdgDecorationManager, wlWm.xdgToplevel);
if (wlWm.xdgToplevelDecoration)
{
zxdg_toplevel_decoration_v1_set_mode(wlWm.xdgToplevelDecoration,
borderless ?
ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE :
ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE);
}
}
return true;
}
void waylandWindowFree(void)
{
wl_surface_destroy(wlWm.surface);
}
void waylandSetWindowSize(int x, int y)
{
// FIXME: implement.
}
void waylandSetFullscreen(bool fs)
{
if (fs)
xdg_toplevel_set_fullscreen(wlWm.xdgToplevel, NULL);
else
xdg_toplevel_unset_fullscreen(wlWm.xdgToplevel);
}
bool waylandGetFullscreen(void)
{
return wlWm.fullscreen;
}
bool waylandIsValidPointerPos(int x, int y)
{
return x >= 0 && x < wlWm.width && y >= 0 && y < wlWm.height;
}

View file

@ -17,6 +17,9 @@ this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_LG_COMMON_COUNTEDBUFFER_
#define _H_LG_COMMON_COUNTEDBUFFER_
#include <stddef.h>
struct CountedBuffer {
@ -28,3 +31,5 @@ struct CountedBuffer {
struct CountedBuffer * countedBufferNew(size_t size);
void countedBufferAddRef(struct CountedBuffer * buffer);
void countedBufferRelease(struct CountedBuffer ** buffer);
#endif