You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
2.0 KiB
79 lines
2.0 KiB
/*****************************************************************
|
|
|
|
Copyright (c) 2001 Charles Samuels <charles@kde.org>
|
|
2001 Neil Stevens <multivac@fcmail.com>
|
|
With code stolen from Paul Harrison <pfh@yoyo.cc.monash.edu.au>
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIAB\ILITY, WHETHER IN
|
|
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
******************************************************************/
|
|
|
|
#include <sys/wait.h>
|
|
#include <sys/types.h>
|
|
|
|
#include "sdlscope.h"
|
|
|
|
extern "C"
|
|
{
|
|
KDE_EXPORT Plugin* create_plugin()
|
|
{
|
|
return new SDLScope();
|
|
}
|
|
}
|
|
|
|
SDLScope::SDLScope()
|
|
: MonoScope(50)
|
|
, Plugin()
|
|
{
|
|
setSamples(320);
|
|
}
|
|
|
|
SDLScope::~SDLScope()
|
|
{
|
|
::close(mOutFd);
|
|
wait(0);
|
|
}
|
|
|
|
void SDLScope::init()
|
|
{
|
|
int pipes[2];
|
|
::pipe(pipes);
|
|
mOutFd=pipes[1];
|
|
if (!fork())
|
|
{
|
|
::close(pipes[1]);
|
|
new SDLView(pipes[0]);
|
|
exit(0);
|
|
}
|
|
else
|
|
{
|
|
fcntl(mOutFd, F_SETFL, fcntl(mOutFd, F_GETFL) & ~O_NONBLOCK);
|
|
::close(pipes[0]);
|
|
MonoScope::start();
|
|
}
|
|
}
|
|
|
|
void SDLScope::scopeEvent(float *d, int size)
|
|
{
|
|
if (::write(mOutFd, (char *)d, size * sizeof(float))==-1)
|
|
{
|
|
MonoScope::stop();
|
|
unload();
|
|
}
|
|
}
|
|
|