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/* SCCSid "$SunId$ LBL" */ |
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|
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/* |
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< |
* Header file for OpenGL display process interface to rwalk. |
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* Header file for OpenGL display process. |
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*/ |
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|
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< |
#include "view.h" |
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#ifndef MEM_PTR |
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#define MEM_PTR char * |
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#endif |
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#ifndef int4 |
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#define int4 int /* assume 32-bit integers */ |
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#endif |
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#undef NOPROTO |
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#define NOPROTO 1 |
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|
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#include "color.h" |
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|
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#define GD_TYPELEN 1 /* a type is 1 byte in length */ |
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|
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/* argument types */ |
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#define GD_TY_END 0 /* argument list terminator */ |
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#define GD_TY_NAM 1 /* 8-byte (max.) identifier */ |
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#define GD_TY_INT 2 /* 4-byte integer */ |
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#define GD_TY_FLT 3 /* 4-byte IEEE float */ |
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#define GD_TY_DBL 4 /* 8-byte IEEE double */ |
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#define GD_TY_CLR 5 /* 4-byte RGBE color value */ |
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#define GD_TY_ARR 6 /* 5-byte array prefix */ |
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#define GD_TY_STR 7 /* nul-terminated string */ |
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#define GD_TY_ARG 8 /* 1-byte argument list prefix */ |
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#define GD_TY_ERR 9 /* 1-byte error code */ |
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|
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#define GD_NTYPES 10 /* number of argument types */ |
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|
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/* stream argument lengths */ |
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#define GD_ARGLEN {0,8,4,4,8,4,5,-1,1,1} |
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+ |
/* array element lengths (0 == unsupported) */ |
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+ |
#define GD_ELELEN {0,8,4,4,8,4,sizeof(GDarg),sizeof(char *),0,0} |
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|
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+ |
#define GD_MAXID 8 /* maximum id. length (must be 8) */ |
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+ |
|
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/* |
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* A request consists of an argument list, the first of |
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* which is always the request name as an 8-char (max.) string. |
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* The types of the following arguments must match the required |
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* arguments of the display request, or an error will result. |
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* |
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* Only functions return values, and they return them as a argument |
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* list on the client's receiving connection. It is up to the client |
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* program to keep track of its function calls and which values correspond |
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* to which request functions. |
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* |
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* An error is indicated with a special GD_TY_ERR code on the receiving |
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* connection, and usually indicates something fatal. |
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*/ |
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|
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/* error codes */ |
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#define GD_ER_UNRECOG 0 /* unrecognized request */ |
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#define GD_ER_ARGTYPE 1 /* argument type mismatch */ |
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#define GD_ER_ARGMISS 2 /* argument(s) missing */ |
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|
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#define GD_NERRS 3 /* number of errors */ |
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|
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/* request argument */ |
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typedef struct { |
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< |
int xres, yres; /* display window size (renderable area) */ |
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< |
} GLDISP; /* display structure */ |
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> |
BYTE typ; /* argument type */ |
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> |
BYTE atyp; /* array subtype if typ==GD_TY_ARR */ |
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> |
union { |
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> |
char n[GD_MAXID]; /* 8-char (max.) id. */ |
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> |
int4 n1, n2; /* used for ID comparison */ |
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> |
int4 i; /* 4-byte integer */ |
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> |
float f; /* 4-byte IEEE float */ |
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> |
double d; /* 8-byte IEEE double */ |
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> |
COLR c; /* 4-byte RGBE color */ |
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> |
struct array { |
| 77 |
> |
int4 l; /* length */ |
| 78 |
> |
MEM_PTR p; /* values */ |
| 79 |
> |
} a; /* array */ |
| 80 |
> |
char *s; /* nul-terminated string */ |
| 81 |
> |
} v; /* argument value */ |
| 82 |
> |
} GDarg; |
| 83 |
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|
| 84 |
< |
extern GLDISP ourgld; /* our display structure */ |
| 85 |
< |
/* background views */ |
| 86 |
< |
#define BG_XMIN 0 |
| 87 |
< |
#define BG_XMAX 1 |
| 88 |
< |
#define BG_YMIN 2 |
| 89 |
< |
#define BG_YMAX 3 |
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< |
#define BG_ZMIN 4 |
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< |
#define BG_ZMAX 5 |
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> |
/* a request and its arguments */ |
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> |
typedef struct gdreq { |
| 86 |
> |
struct gdreq *next; /* next request in list */ |
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> |
short argc; /* number of arguments */ |
| 88 |
> |
GDarg argv[1]; /* argument list (expandable) */ |
| 89 |
> |
} GDrequest; |
| 90 |
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|
| 91 |
< |
#define BGVWNAMES {"xmin","xmax","ymin","ymax","zmin","zmax"} |
| 91 |
> |
#define GD_HSIZ 123 /* hash table size (prime) */ |
| 92 |
> |
extern GDrequest *gdProTab[GD_HSIZ]; /* registered prototypes */ |
| 93 |
> |
|
| 94 |
> |
#define gdHash(a) ((a)->v.n1 ^ (a)->v.n2) |
| 95 |
> |
|
| 96 |
> |
#define gdFree(p) free((MEM_PTR)(p)) |
| 97 |
> |
|
| 98 |
> |
typedef struct { |
| 99 |
> |
int xres, yres; /* display window size (renderable area) */ |
| 100 |
> |
} GDserv; /* display structure */ |
