Files
LookingGlass/client/src/transport.c
2026-08-13 04:28:09 +10:00

104 lines
3.1 KiB
C

/**
* Looking Glass
* Copyright © 2017-2026 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 "interface/transport.h"
#include "dynamic/transports.h"
#include "common/debug.h"
#include <string.h>
void lgTransport_setup(void)
{
for (unsigned i = 0; i < LG_TRANSPORT_COUNT; ++i)
if (LG_Transports[i]->setup)
LG_Transports[i]->setup();
}
bool lgTransport_isValid(const char * name)
{
if (!name)
return false;
for (unsigned i = 0; i < LG_TRANSPORT_COUNT; ++i)
if (strcmp(LG_Transports[i]->name, name) == 0)
return true;
return false;
}
bool lgTransport_create(const char * name, LG_TransportInstance * instance)
{
if (!instance)
return false;
*instance = (LG_TransportInstance) { 0 };
for (unsigned i = 0; i < LG_TRANSPORT_COUNT; ++i)
{
if (strcmp(LG_Transports[i]->name, name) != 0)
continue;
const LG_TransportOps * ops = LG_Transports[i];
if (!ops->create || !ops->destroy || !ops->connectCancellable ||
!ops->disconnect || !ops->sessionValid)
{
DEBUG_ERROR("Transport %s has an incomplete session interface", name);
return false;
}
if (!ops->create(&instance->handle))
return false;
const LG_VideoOps * video = ops->getVideoOps ?
ops->getVideoOps(instance->handle) : NULL;
const bool badFrame = video && video->type == LG_VIDEO_TYPE_FRAME &&
(!video->frame || !video->frame->nextFrame ||
!video->frame->releaseFrame || !video->frame->cancelFrameWait ||
((video->frame->nextPointer != NULL) !=
(video->frame->releasePointer != NULL)) ||
(video->frame->nextPointer && !video->frame->cancelPointerWait));
const bool badSurface = video && video->type == LG_VIDEO_TYPE_SW_SURFACE &&
(!video->swSurface || !video->swSurface->attach ||
!video->swSurface->detach || !video->swSurface->setActive ||
!video->swSurface->cancelPending);
if (video && (badFrame || badSurface ||
(video->type != LG_VIDEO_TYPE_FRAME &&
video->type != LG_VIDEO_TYPE_SW_SURFACE)))
{
DEBUG_ERROR("Transport %s has an incomplete video interface", name);
ops->destroy(&instance->handle);
return false;
}
instance->ops = ops;
return true;
}
return false;
}
void lgTransport_destroy(LG_TransportInstance * instance)
{
if (!instance)
return;
if (instance->ops)
instance->ops->destroy(&instance->handle);
*instance = (LG_TransportInstance) { 0 };
}