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#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include "sndpix.h"
DPI_LINK_DECL DPI_DLLESPEC
int
sndpix
(
int hcoord
,
int vcoord
,
int rrggbb
,
int hperiod
,
int vperiod
)
{
static int hsize
=0,vsize
=0;
static int need_init
= 1;
static int sock_error
=0;
static int mysocket
;
struct sockaddr_in addr
;
char buf
[256];
char * curbuf
;
int tosend
;
int socksent
;
if( need_init
)
{
need_init
= 0;
mysocket
= socket
(AF_INET
, SOCK_STREAM
, 0);
if(mysocket
<0) sock_error
++;
addr.
sin_family = AF_INET
;
addr.
sin_port = htons
(12345);
// addr.sin_addr.s_addr = htonl(0xAC100594); //172.16.5.148
addr.
sin_addr.
s_addr = htonl
(0x7F000001); //127.0.0.1
if( !sock_error
)
{
if( connect
(mysocket
, (struct sockaddr
*)&addr
, sizeof(addr
) ) )
{
sock_error
++;
}
}
}
if( !sock_error
)
{
// sprintf(buf,"%08X<=%08X:%08X with %02X\n",adr,dat_hi,dat_lo,sel);
buf
[0] = 0;
if( (hperiod
>0) && (vperiod
>0) )
{
if( (hperiod
!=hsize
) || (vperiod
!=vsize
) )
{
hsize
= hperiod
;
vsize
= vperiod
;
sprintf(buf
,"s%04X,%04X\n",hsize
,vsize
);
}
}
if( (hsize
>0) && (vsize
>0) )
sprintf(buf
+strlen(buf
),"p%04X,%04X,%02X\n",hcoord
,vcoord
,rrggbb
);
if( strlen(buf
)>0 )
{
tosend
= strlen(buf
);
curbuf
= buf
;
while( tosend
>0 )
{
socksent
= send
(mysocket
, curbuf
, tosend
, 0);
if( socksent
<=0 )
{
sock_error
++;
break;
}
tosend
-= socksent
;
curbuf
+= socksent
;
}
// if( strlen(buf)!=socksent )
// {
// printf("send() sent %d bytes, errno=%d\n",socksent,errno);
// sock_error++;
// }
}
}
else
{
// sock_error = 0;
// need_init = 1;
if( mysocket
>=0 )
close
(mysocket
);
}
return 0;
}