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/* variables and declarations for client RPC library for software frame |
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buffer approach */ |
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#include <netdb.h> |
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#include <rpc/rpc.h> |
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#include <sys/socket.h> |
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#include <sys/time.h> |
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/* if Limpel-Zev is used, a directive to define WIDEAREA is included |
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on the compile line */ |
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|
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#define SUNFRONT /* Sun is client */ |
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#define PCPORT 2000 /* hard-wired PC port */ |
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#define PROGNUM 1000 /* program number */ |
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#define TESTVERS 1 /* version */ |
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|
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/* remote procedure numbers */ |
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|
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/* used in both metafile and software frame buffer approaches */ |
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|
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#define AUTHPROC 1 /* authorization procedure */ |
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#define INITPROC 2 /* initialize VTR or videodisk */ |
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#define RECORDPROC 4 /* record frame */ |
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#define CLOSEPROC 5 /* relinquish control */ |
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/* used only in software frame buffer approach */ |
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#define NOCOMPRESS 6 /* no compression */ |
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#define DISPLAY 7 /* display using TARGA graphics calls */ |
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#define SENDUDP 13 /* send scan lines using UDP preliminary to |
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display */ |
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#define MAPPROC 8 /* receive color map */ |
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|
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/* test RPC for rough timing estimates */ |
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#define TESTRPC 14 |
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|
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/* definitions and variables common to both metafile and frame |
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buffer approaches */ |
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|
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/* give up after certain amount of time */ |
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extern struct timeval total_timeout ; |
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/* client handle */ |
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extern CLIENT *client ; |
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#define UDP 0 /* UDP protocol */ |
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#define TCP 1 /* TCP protocol */ |
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extern short protocol ; /* which protocol */ |
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#define PREVIEW 0 /* preview mode */ |
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extern FILE *vcr_rec ; /* records starting and ending frame numbers */ |
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extern int curr_frame ; /* current frame number */ |
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extern int copy_num ; /* number of frames to record image on */ |
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extern int record ; /* preview or record */ |
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extern bool_t optflag ; /* video workstation has optical disk */ |
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|
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struct netuser /* user description structure */ |
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{ |
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int nu_uid ; /* effective user id */ |
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unsigned int nu_glen ; /* number of groups user in */ |
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int *nu_gids ; /* groups user is in */ |
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} ; |
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struct record |
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{ |
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int in_at ; /* start recording image at */ |
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int out_at ; /* finish recording image at */ |
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} ; |
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|
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/* used only in software frame buffer approach */ |
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|
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#define NONE 0 /* no compression */ |
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#define BTC 1 /* BTC compression */ |
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#define COLORMAP 2 /* BTC and color map compression */ |
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/* hereafter referred to as color map */ |
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|
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extern short compression ; /* type of compression */ |
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|
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struct mapstore |
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{ |
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short mapnum ; /* number of entries in color map */ |
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unsigned short map[256] ; /* entries in color map */ |
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} ; |
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|
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struct scan_packet |
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{ |
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bool_t first ; /* first frame - no frame-frame differencing */ |
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int record ; /* preview or record */ |
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short compression ; /* type of compression */ |
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short linenum ; /* scan line number (0 to 399) */ |
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int index ; /* used by server as index into piece of |
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incoming buffer */ |
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int total1, total2 ; /* server uses in building up compressed |
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frame buffer from incoming pieces */ |
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#ifdef WIDEAREA |
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/* number of bytes in compressed frame (Limpel_Zev only) */ |
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int total_lz ; |
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#endif |
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int in_at, out_at ; /* starting, ending numbers to |
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record image on */ |
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short mapnum ; /* number of entries in color map */ |
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unsigned short map[256] ; /* color map */ |
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short num_bytes[100] ; /* number of bytes in each group of |
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4 compressed scan lines */ |
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unsigned char pack[76800] ; /* compressed frame buffer or piece thereof */ |
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/* 2 scan lines stored here when compression |
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not used */ |
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} ; |
