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LookingGlass/client/src/main.c
Geoffrey McRae 1effd5fddc [common] debug: add color support to debug messages 
People often miss the warnings about invalid arguments in their command
line, this last minute patch attempts to address this by making
warnings, errors, fixme's and fatal errors stand out if stdout is a TTY.
2021-07-07 23:05:46 +10:00

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/**
* Looking Glass
* Copyright (C) 2017-2021 The Looking Glass Authors
* 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 "main.h"
#include "config.h"
#include <getopt.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <stdint.h>
#include <stdbool.h>
#include <assert.h>
#include <math.h>
#include <stdatomic.h>
#include <linux/input.h>
#include "common/debug.h"
#include "common/crash.h"
#include "common/KVMFR.h"
#include "common/stringutils.h"
#include "common/thread.h"
#include "common/locking.h"
#include "common/event.h"
#include "common/ivshmem.h"
#include "common/time.h"
#include "common/version.h"
#include "core.h"
#include "app.h"
#include "keybind.h"
#include "clipboard.h"
#include "ll.h"
#include "egl_dynprocs.h"
// forwards
static int cursorThread(void * unused);
static int renderThread(void * unused);
static LGEvent *e_startup = NULL;
static LGEvent *e_frame = NULL;
static LGThread *t_spice = NULL;
static LGThread *t_render = NULL;
static LGThread *t_cursor = NULL;
struct AppState g_state;
struct CursorState g_cursor;
// this structure is initialized in config.c
struct AppParams g_params = { 0 };
static void lgInit(void)
{
g_state.state = APP_STATE_RUNNING;
g_state.formatValid = false;
g_state.resizeDone = true;
if (g_cursor.grab)
core_setGrab(false);
g_cursor.useScale = false;
g_cursor.scale.x = 1.0;
g_cursor.scale.y = 1.0;
g_cursor.draw = false;
g_cursor.inView = false;
g_cursor.guest.valid = false;
// if spice is not in use, hide the local cursor
if (!core_inputEnabled() && g_params.hideMouse)
g_state.ds->showPointer(false);
else
g_state.ds->showPointer(true);
}
static int renderThread(void * unused)
{
if (!g_state.lgr->render_startup(g_state.lgrData))
{
g_state.state = APP_STATE_SHUTDOWN;
/* unblock threads waiting on the condition */
lgSignalEvent(e_startup);
return 1;
}
LG_LOCK_INIT(g_state.lgrLock);
g_state.lgr->on_show_fps(g_state.lgrData, g_state.showFPS);
/* signal to other threads that the renderer is ready */
lgSignalEvent(e_startup);
struct timespec time;
clock_gettime(CLOCK_MONOTONIC, &time);
while(g_state.state != APP_STATE_SHUTDOWN)
{
if (g_params.fpsMin != 0)
{
lgWaitEventAbs(e_frame, &time);
clock_gettime(CLOCK_MONOTONIC, &time);
tsAdd(&time, g_state.frameTime);
}
int resize = atomic_load(&g_state.lgrResize);
if (resize)
{
if (g_state.lgr)
g_state.lgr->on_resize(g_state.lgrData, g_state.windowW, g_state.windowH,
g_state.windowScale, g_state.dstRect, g_params.winRotate);
atomic_compare_exchange_weak(&g_state.lgrResize, &resize, 0);
}
LG_LOCK(g_state.lgrLock);
if (!g_state.lgr->render(g_state.lgrData, g_params.winRotate))
{
LG_UNLOCK(g_state.lgrLock);
break;
}
LG_UNLOCK(g_state.lgrLock);
if (g_state.showFPS)
{
const uint64_t t = nanotime();
g_state.renderTime += t - g_state.lastFrameTime;
g_state.lastFrameTime = t;
++g_state.renderCount;
if (g_state.renderTime > 1e9)
{
const float avgUPS = 1000.0f / (((float)g_state.renderTime /
atomic_exchange_explicit(&g_state.frameCount, 0, memory_order_acquire)) /
1e6f);
const float avgFPS = 1000.0f / (((float)g_state.renderTime /
g_state.renderCount) /
1e6f);
g_state.lgr->update_fps(g_state.lgrData, avgUPS, avgFPS);
g_state.renderTime = 0;
g_state.renderCount = 0;
}
}
const uint64_t now = microtime();
if (!g_state.resizeDone && g_state.resizeTimeout < now)
{
if (g_params.autoResize)
{
g_state.ds->setWindowSize(
g_state.dstRect.w,
g_state.dstRect.h
);
}
g_state.resizeDone = true;
}
app_handleRenderEvent(now);
}
g_state.state = APP_STATE_SHUTDOWN;
if (t_cursor)
lgJoinThread(t_cursor, NULL);
core_stopFrameThread();
g_state.lgr->deinitialize(g_state.lgrData);
g_state.lgr = NULL;
LG_LOCK_FREE(g_state.lgrLock);
return 0;
}
static int cursorThread(void * unused)
{
LGMP_STATUS status;
PLGMPClientQueue queue;
LG_RendererCursor cursorType = LG_CURSOR_COLOR;
lgWaitEvent(e_startup, TIMEOUT_INFINITE);
// subscribe to the pointer queue
while(g_state.state == APP_STATE_RUNNING)
{
status = lgmpClientSubscribe(g_state.lgmp, LGMP_Q_POINTER, &queue);
if (status == LGMP_OK)
break;
if (status == LGMP_ERR_NO_SUCH_QUEUE)
{
usleep(1000);
continue;
}
DEBUG_ERROR("lgmpClientSubscribe Failed: %s", lgmpStatusString(status));
g_state.state = APP_STATE_SHUTDOWN;
break;
}
while(g_state.state == APP_STATE_RUNNING)
{
LGMPMessage msg;
if ((status = lgmpClientProcess(queue, &msg)) != LGMP_OK)
{
if (status == LGMP_ERR_QUEUE_EMPTY)
{
if (g_cursor.redraw && g_cursor.guest.valid)
{
g_cursor.redraw = false;
g_state.lgr->on_mouse_event
(
g_state.lgrData,
g_cursor.guest.visible && (g_cursor.draw || !g_params.useSpiceInput),
g_cursor.guest.x,
g_cursor.guest.y
);
lgSignalEvent(e_frame);
}
const struct timespec req =
{
.tv_sec = 0,
.tv_nsec = g_params.cursorPollInterval * 1000L
};
struct timespec rem;
while(nanosleep(&req, &rem) < 0)
if (errno != -EINTR)
{
DEBUG_ERROR("nanosleep failed");
break;
}
continue;
}
if (status == LGMP_ERR_INVALID_SESSION)
g_state.state = APP_STATE_RESTART;
else
{
DEBUG_ERROR("lgmpClientProcess Failed: %s", lgmpStatusString(status));
g_state.state = APP_STATE_SHUTDOWN;
}
break;
}
KVMFRCursor * cursor = (KVMFRCursor *)msg.mem;
g_cursor.guest.visible =
msg.udata & CURSOR_FLAG_VISIBLE;
if (msg.udata & CURSOR_FLAG_SHAPE)
{
switch(cursor->type)
{
case CURSOR_TYPE_COLOR : cursorType = LG_CURSOR_COLOR ; break;
case CURSOR_TYPE_MONOCHROME : cursorType = LG_CURSOR_MONOCHROME ; break;
case CURSOR_TYPE_MASKED_COLOR: cursorType = LG_CURSOR_MASKED_COLOR; break;
default:
DEBUG_ERROR("Invalid cursor type");
lgmpClientMessageDone(queue);
continue;
}
g_cursor.guest.hx = cursor->hx;
g_cursor.guest.hy = cursor->hy;
const uint8_t * data = (const uint8_t *)(cursor + 1);
if (!g_state.lgr->on_mouse_shape(
g_state.lgrData,
cursorType,
cursor->width,
cursor->height,
cursor->pitch,
data)
)
{
DEBUG_ERROR("Failed to update mouse shape");
lgmpClientMessageDone(queue);
continue;
}
}
if (msg.udata & CURSOR_FLAG_POSITION)
{
bool valid = g_cursor.guest.valid;
g_cursor.guest.x = cursor->x;
g_cursor.guest.y = cursor->y;
g_cursor.guest.valid = true;
// if the state just became valid
if (valid != true && core_inputEnabled())
{
core_alignToGuest();
app_resyncMouseBasic();
}
// tell the DS there was an update
core_handleGuestMouseUpdate();
}
lgmpClientMessageDone(queue);
g_cursor.redraw = false;
g_state.lgr->on_mouse_event
(
g_state.lgrData,
g_cursor.guest.visible && (g_cursor.draw || !g_params.useSpiceInput),
g_cursor.guest.x,
g_cursor.guest.y
);
if (g_params.mouseRedraw && g_cursor.guest.visible)
lgSignalEvent(e_frame);
}
lgmpClientUnsubscribe(&queue);
return 0;
}
int main_frameThread(void * unused)
{
struct DMAFrameInfo
{
KVMFRFrame * frame;
size_t dataSize;
int fd;
};
LGMP_STATUS status;
PLGMPClientQueue queue;
uint32_t formatVer = 0;
size_t dataSize = 0;
LG_RendererFormat lgrFormat;
struct DMAFrameInfo dmaInfo[LGMP_Q_FRAME_LEN] = {0};
const bool useDMA =
g_params.allowDMA &&
ivshmemHasDMA(&g_state.shm) &&
g_state.lgr->supports &&
g_state.lgr->supports(g_state.lgrData, LG_SUPPORTS_DMABUF);
if (useDMA)
DEBUG_INFO("Using DMA buffer support");
lgWaitEvent(e_startup, TIMEOUT_INFINITE);
if (g_state.state != APP_STATE_RUNNING)
return 0;
// subscribe to the frame queue
while(g_state.state == APP_STATE_RUNNING)
{
status = lgmpClientSubscribe(g_state.lgmp, LGMP_Q_FRAME, &queue);
if (status == LGMP_OK)
break;
if (status == LGMP_ERR_NO_SUCH_QUEUE)
{
usleep(1000);
continue;
}
DEBUG_ERROR("lgmpClientSubscribe Failed: %s", lgmpStatusString(status));
g_state.state = APP_STATE_SHUTDOWN;
break;
}
while(g_state.state == APP_STATE_RUNNING && !g_state.stopVideo)
{
LGMPMessage msg;
if ((status = lgmpClientProcess(queue, &msg)) != LGMP_OK)
{
if (status == LGMP_ERR_QUEUE_EMPTY)
{
const struct timespec req =
{
.tv_sec = 0,
.tv_nsec = g_params.framePollInterval * 1000L
};
struct timespec rem;
while(nanosleep(&req, &rem) < 0)
if (errno != -EINTR)
{
DEBUG_ERROR("nanosleep failed");
break;
}
continue;
}
if (status == LGMP_ERR_INVALID_SESSION)
g_state.state = APP_STATE_RESTART;
else
{
DEBUG_ERROR("lgmpClientProcess Failed: %s", lgmpStatusString(status));
g_state.state = APP_STATE_SHUTDOWN;
}
break;
}
KVMFRFrame * frame = (KVMFRFrame *)msg.mem;
struct DMAFrameInfo *dma = NULL;
if (!g_state.formatValid || frame->formatVer != formatVer)
{
// setup the renderer format with the frame format details
lgrFormat.type = frame->type;
lgrFormat.width = frame->width;
lgrFormat.height = frame->height;
lgrFormat.stride = frame->stride;
lgrFormat.pitch = frame->pitch;
if (frame->height != frame->realHeight)
{
const float needed =
((frame->realHeight * frame->pitch * 2) / 1048576.0f) + 10.0f;
const int size = (int)powf(2.0f, ceilf(logf(needed) / logf(2.0f)));
DEBUG_BREAK();
DEBUG_WARN("IVSHMEM too small, screen truncated");
DEBUG_WARN("Recommend increase size to %d MiB", size);
DEBUG_BREAK();
app_alert(LG_ALERT_ERROR,
"IVSHMEM too small, screen truncated\n"
"Recommend increasing size to %d MiB",
size);
}
switch(frame->rotation)
{
case FRAME_ROT_0 : lgrFormat.rotate = LG_ROTATE_0 ; break;
case FRAME_ROT_90 : lgrFormat.rotate = LG_ROTATE_90 ; break;
case FRAME_ROT_180: lgrFormat.rotate = LG_ROTATE_180; break;
case FRAME_ROT_270: lgrFormat.rotate = LG_ROTATE_270; break;
}
g_state.rotate = lgrFormat.rotate;
bool error = false;
switch(frame->type)
{
case FRAME_TYPE_RGBA:
case FRAME_TYPE_BGRA:
case FRAME_TYPE_RGBA10:
dataSize = lgrFormat.height * lgrFormat.pitch;
lgrFormat.bpp = 32;
break;
case FRAME_TYPE_RGBA16F:
dataSize = lgrFormat.height * lgrFormat.pitch;
lgrFormat.bpp = 64;
break;
default:
DEBUG_ERROR("Unsupported frameType");
error = true;
break;
}
if (error)
{
lgmpClientMessageDone(queue);
g_state.state = APP_STATE_SHUTDOWN;
break;
}
g_state.formatValid = true;
formatVer = frame->formatVer;
DEBUG_INFO("Format: %s %ux%u stride:%u pitch:%u rotation:%d",
FrameTypeStr[frame->type],
frame->width, frame->height,
frame->stride, frame->pitch,
frame->rotation);
LG_LOCK(g_state.lgrLock);
if (!g_state.lgr->on_frame_format(g_state.lgrData, lgrFormat, useDMA))
{
DEBUG_ERROR("renderer failed to configure format");
g_state.state = APP_STATE_SHUTDOWN;
LG_UNLOCK(g_state.lgrLock);
break;
}
LG_UNLOCK(g_state.lgrLock);
g_state.srcSize.x = lgrFormat.width;
g_state.srcSize.y = lgrFormat.height;
g_state.haveSrcSize = true;
if (g_params.autoResize)
g_state.ds->setWindowSize(lgrFormat.width, lgrFormat.height);
g_cursor.guest.dpiScale = frame->mouseScalePercent;
core_updatePositionInfo();
}
if (useDMA)
{
/* find the existing dma buffer if it exists */
for(int i = 0; i < sizeof(dmaInfo) / sizeof(struct DMAFrameInfo); ++i)
{
if (dmaInfo[i].frame == frame)
{
dma = &dmaInfo[i];
/* if it's too small close it */
if (dma->dataSize < dataSize)
{
close(dma->fd);
dma->fd = -1;
}
break;
}
}
/* otherwise find a free buffer for use */
if (!dma)
for(int i = 0; i < sizeof(dmaInfo) / sizeof(struct DMAFrameInfo); ++i)
{
if (!dmaInfo[i].frame)
{
dma = &dmaInfo[i];
dma->frame = frame;
dma->fd = -1;
break;
}
}
/* open the buffer */
if (dma->fd == -1)
{
const uintptr_t pos = (uintptr_t)msg.mem - (uintptr_t)g_state.shm.mem;
const uintptr_t offset = (uintptr_t)frame->offset + FrameBufferStructSize;
dma->dataSize = dataSize;
dma->fd = ivshmemGetDMABuf(&g_state.shm, pos + offset, dataSize);
if (dma->fd < 0)
{
DEBUG_ERROR("Failed to get the DMA buffer for the frame");
g_state.state = APP_STATE_SHUTDOWN;
break;
}
}
}
FrameBuffer * fb = (FrameBuffer *)(((uint8_t*)frame) + frame->offset);
if (!g_state.lgr->on_frame(g_state.lgrData, fb, useDMA ? dma->fd : -1))
{
lgmpClientMessageDone(queue);
DEBUG_ERROR("renderer on frame returned failure");
g_state.state = APP_STATE_SHUTDOWN;
break;
}
if (g_params.autoScreensaver && g_state.autoIdleInhibitState != frame->blockScreensaver)
{
if (frame->blockScreensaver)
g_state.ds->inhibitIdle();
else
g_state.ds->uninhibitIdle();
g_state.autoIdleInhibitState = frame->blockScreensaver;
}
atomic_fetch_add_explicit(&g_state.frameCount, 1, memory_order_relaxed);
lgSignalEvent(e_frame);
lgmpClientMessageDone(queue);
}
lgmpClientUnsubscribe(&queue);
g_state.lgr->on_restart(g_state.lgrData);
if (useDMA)
{
for(int i = 0; i < sizeof(dmaInfo) / sizeof(struct DMAFrameInfo); ++i)
if (dmaInfo[i].fd >= 0)
close(dmaInfo[i].fd);
}
return 0;
}
int spiceThread(void * arg)
{
while(g_state.state != APP_STATE_SHUTDOWN)
if (!spice_process(1000))
{
if (g_state.state != APP_STATE_SHUTDOWN)
{
g_state.state = APP_STATE_SHUTDOWN;
DEBUG_ERROR("failed to process spice messages");
}
break;
}
g_state.state = APP_STATE_SHUTDOWN;
return 0;
}
void intHandler(int sig)
{
switch(sig)
{
case SIGINT:
case SIGTERM:
if (g_state.state != APP_STATE_SHUTDOWN)
{
DEBUG_INFO("Caught signal, shutting down...");
g_state.state = APP_STATE_SHUTDOWN;
}
else
{
DEBUG_INFO("Caught second signal, force quitting...");
signal(sig, SIG_DFL);
raise(sig);
}
break;
}
}
static bool tryRenderer(const int index, const LG_RendererParams lgrParams,
bool * needsOpenGL)
{
const LG_Renderer *r = LG_Renderers[index];
if (!IS_LG_RENDERER_VALID(r))
{
DEBUG_ERROR("FIXME: Renderer %d is invalid, skipping", index);
return false;
}
// create the renderer
g_state.lgrData = NULL;
*needsOpenGL = false;
if (!r->create(&g_state.lgrData, lgrParams, needsOpenGL))
return false;
// initialize the renderer
if (!r->initialize(g_state.lgrData))
{
r->deinitialize(g_state.lgrData);
return false;
}
DEBUG_INFO("Using Renderer: %s", r->get_name());
return true;
}
static int lg_run(void)
{
memset(&g_state, 0, sizeof(g_state));
g_cursor.sens = g_params.mouseSens;
if (g_cursor.sens < -9) g_cursor.sens = -9;
else if (g_cursor.sens > 9) g_cursor.sens = 9;
g_state.showFPS = g_params.showFPS;
// search for the best displayserver ops to use
for(int i = 0; i < LG_DISPLAYSERVER_COUNT; ++i)
if (LG_DisplayServers[i]->probe())
{
g_state.ds = LG_DisplayServers[i];
break;
}
assert(g_state.ds);
ASSERT_LG_DS_VALID(g_state.ds);
// init the subsystem
if (!g_state.ds->earlyInit())
{
DEBUG_ERROR("Subsystem early init failed");
return -1;
}
// override the SIGINIT handler so that we can tell the difference between
// SIGINT and the user sending a close event, such as ALT+F4
signal(SIGINT , intHandler);
signal(SIGTERM, intHandler);
// try map the shared memory
if (!ivshmemOpen(&g_state.shm))
{
DEBUG_ERROR("Failed to map memory");
return -1;
}
// try to connect to the spice server
if (g_params.useSpiceInput || g_params.useSpiceClipboard)
{
if (g_params.useSpiceClipboard)
spice_set_clipboard_cb(
cb_spiceNotice,
cb_spiceData,
cb_spiceRelease,
cb_spiceRequest);
if (!spice_connect(g_params.spiceHost, g_params.spicePort, ""))
{
DEBUG_ERROR("Failed to connect to spice server");
return -1;
}
while(g_state.state != APP_STATE_SHUTDOWN && !spice_ready())
if (!spice_process(1000))
{
g_state.state = APP_STATE_SHUTDOWN;
DEBUG_ERROR("Failed to process spice messages");
return -1;
}
spice_mouse_mode(true);
if (!lgCreateThread("spiceThread", spiceThread, NULL, &t_spice))
{
DEBUG_ERROR("spice create thread failed");
return -1;
}
}
// select and init a renderer
bool needsOpenGL;
LG_RendererParams lgrParams;
lgrParams.quickSplash = g_params.quickSplash;
if (g_params.forceRenderer)
{
DEBUG_INFO("Trying forced renderer");
if (!tryRenderer(g_params.forceRendererIndex, lgrParams, &needsOpenGL))
{
DEBUG_ERROR("Forced renderer failed to iniailize");
return -1;
}
g_state.lgr = LG_Renderers[g_params.forceRendererIndex];
}
else
{
// probe for a a suitable renderer
for(unsigned int i = 0; i < LG_RENDERER_COUNT; ++i)
{
if (tryRenderer(i, lgrParams, &needsOpenGL))
{
g_state.lgr = LG_Renderers[i];
break;
}
}
}
if (!g_state.lgr)
{
DEBUG_INFO("Unable to find a suitable renderer");
return -1;
}
// initialize the window dimensions at init for renderers
g_state.windowW = g_params.w;
g_state.windowH = g_params.h;
g_state.windowCX = g_params.w / 2;
g_state.windowCY = g_params.h / 2;
core_updatePositionInfo();
const LG_DSInitParams params =
{
.title = g_params.windowTitle,
.x = g_params.x,
.y = g_params.y,
.w = g_params.w,
.h = g_params.h,
.center = g_params.center,
.fullscreen = g_params.fullscreen,
.resizable = g_params.allowResize,
.borderless = g_params.borderless,
.maximize = g_params.maximize,
.opengl = needsOpenGL
};
g_state.dsInitialized = g_state.ds->init(params);
if (!g_state.dsInitialized)
{
DEBUG_ERROR("Failed to initialize the displayserver backend");
return -1;
}
if (g_params.noScreensaver)
g_state.ds->inhibitIdle();
// ensure renderer viewport is aware of the current window size
core_updatePositionInfo();
if (g_params.fpsMin <= 0)
{
// default 30 fps
g_state.frameTime = 1000000000ULL / 30ULL;
}
else
{
DEBUG_INFO("Using the FPS minimum from args: %d", g_params.fpsMin);
g_state.frameTime = 1000000000ULL / (unsigned long long)g_params.fpsMin;
}
keybind_register();
// setup the startup condition
if (!(e_startup = lgCreateEvent(false, 0)))
{
DEBUG_ERROR("failed to create the startup event");
return -1;
}
// setup the new frame event
if (!(e_frame = lgCreateEvent(true, 0)))
{
DEBUG_ERROR("failed to create the frame event");
return -1;
}
lgInit();
// start the renderThread so we don't just display junk
if (!lgCreateThread("renderThread", renderThread, NULL, &t_render))
{
DEBUG_ERROR("render create thread failed");
return -1;
}
// wait for startup to complete so that any error messages below are output at
// the end of the output
lgWaitEvent(e_startup, TIMEOUT_INFINITE);
g_state.ds->startup();
g_state.cbAvailable = g_state.ds->cbInit && g_state.ds->cbInit();
if (g_state.cbAvailable)
g_state.cbRequestList = ll_new();
LGMP_STATUS status;
while(g_state.state == APP_STATE_RUNNING)
{
if ((status = lgmpClientInit(g_state.shm.mem, g_state.shm.size, &g_state.lgmp)) == LGMP_OK)
break;
DEBUG_ERROR("lgmpClientInit Failed: %s", lgmpStatusString(status));
return -1;
}
/* this short timeout is to allow the LGMP host to update the timestamp before
* we start checking for a valid session */
g_state.ds->wait(200);
if (g_params.captureOnStart)
core_setGrab(true);
uint32_t udataSize;
KVMFR *udata;
int waitCount = 0;
restart:
while(g_state.state == APP_STATE_RUNNING)
{
if ((status = lgmpClientSessionInit(g_state.lgmp, &udataSize, (uint8_t **)&udata)) == LGMP_OK)
break;
if (status != LGMP_ERR_INVALID_SESSION && status != LGMP_ERR_INVALID_MAGIC)
{
DEBUG_ERROR("lgmpClientSessionInit Failed: %s", lgmpStatusString(status));
return -1;
}
if (waitCount++ == 0)
{
DEBUG_BREAK();
DEBUG_INFO("The host application seems to not be running");
DEBUG_INFO("Waiting for the host application to start...");
}
if (waitCount == 30)
{
DEBUG_BREAK();
DEBUG_INFO("Please check the host application is running and is the correct version");
DEBUG_INFO("Check the host log in your guest at %%ProgramData%%\\Looking Glass (host)\\looking-glass-host.txt");
DEBUG_INFO("Continuing to wait...");
}
g_state.ds->wait(1000);
}
if (g_state.state != APP_STATE_RUNNING)
return -1;
// dont show warnings again after the first startup
waitCount = 100;
const bool magicMatches = memcmp(udata->magic, KVMFR_MAGIC, sizeof(udata->magic)) == 0;
if (udataSize != sizeof(KVMFR) || !magicMatches || udata->version != KVMFR_VERSION)
{
DEBUG_BREAK();
DEBUG_ERROR("The host application is not compatible with this client");
DEBUG_ERROR("This is not a Looking Glass error, do not report this");
DEBUG_ERROR("Please install the matching host application for this client");
if (magicMatches)
{
DEBUG_ERROR("Expected KVMFR version %d, got %d", KVMFR_VERSION, udata->version);
DEBUG_ERROR("Client version: %s", BUILD_VERSION);
if (udata->version >= 2)
DEBUG_ERROR(" Host version: %s", udata->hostver);
}
else
DEBUG_ERROR("Invalid KVMFR magic");
DEBUG_BREAK();
if (magicMatches)
{
DEBUG_INFO("Waiting for you to upgrade the host application");
while (g_state.state == APP_STATE_RUNNING && udata->version != KVMFR_VERSION)
g_state.ds->wait(1000);
if (g_state.state != APP_STATE_RUNNING)
return -1;
goto restart;
}
else
return -1;
}
DEBUG_INFO("Host ready, reported version: %s", udata->hostver);
DEBUG_INFO("Starting session");
if (!lgCreateThread("cursorThread", cursorThread, NULL, &t_cursor))
{
DEBUG_ERROR("cursor create thread failed");
return 1;
}
if (!core_startFrameThread())
return -1;
while(g_state.state == APP_STATE_RUNNING)
{
if (!lgmpClientSessionValid(g_state.lgmp))
{
g_state.state = APP_STATE_RESTART;
break;
}
g_state.ds->wait(100);
}
if (g_state.state == APP_STATE_RESTART)
{
lgSignalEvent(e_startup);
lgSignalEvent(e_frame);
core_stopFrameThread();
lgJoinThread(t_cursor, NULL);
t_cursor = NULL;
lgInit();
g_state.lgr->on_restart(g_state.lgrData);
DEBUG_INFO("Waiting for the host to restart...");
goto restart;
}
return 0;
}
static void lg_shutdown(void)
{
g_state.state = APP_STATE_SHUTDOWN;
if (t_render)
{
lgSignalEvent(e_startup);
lgSignalEvent(e_frame);
lgJoinThread(t_render, NULL);
}
lgmpClientFree(&g_state.lgmp);
if (e_frame)
{
lgFreeEvent(e_frame);
e_frame = NULL;
}
if (e_startup)
{
lgFreeEvent(e_startup);
e_startup = NULL;
}
// if spice is still connected send key up events for any pressed keys
if (g_params.useSpiceInput && spice_ready())
{
for(int scancode = 0; scancode < KEY_MAX; ++scancode)
if (g_state.keyDown[scancode])
{
g_state.keyDown[scancode] = false;
spice_key_up(scancode);
}
spice_disconnect();
if (t_spice)
lgJoinThread(t_spice, NULL);
}
if (g_state.ds)
g_state.ds->shutdown();
if (g_state.cbRequestList)
{
ll_free(g_state.cbRequestList);
g_state.cbRequestList = NULL;
}
app_releaseAllKeybinds();
if (g_state.dsInitialized)
g_state.ds->free();
ivshmemClose(&g_state.shm);
}
int main(int argc, char * argv[])
{
// initialize for DEBUG_* macros
debug_init();
if (getuid() == 0)
{
DEBUG_ERROR("Do not run looking glass as root!");
return -1;
}
DEBUG_INFO("Looking Glass (%s)", BUILD_VERSION);
DEBUG_INFO("Locking Method: " LG_LOCK_MODE);
if (!installCrashHandler("/proc/self/exe"))
DEBUG_WARN("Failed to install the crash handler");
config_init();
ivshmemOptionsInit();
egl_dynProcsInit();
// early renderer setup for option registration
for(unsigned int i = 0; i < LG_RENDERER_COUNT; ++i)
LG_Renderers[i]->setup();
for(unsigned int i = 0; i < LG_DISPLAYSERVER_COUNT; ++i)
LG_DisplayServers[i]->setup();
if (!config_load(argc, argv))
return -1;
const int ret = lg_run();
lg_shutdown();
config_free();
cleanupCrashHandler();
return ret;
}
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