1 /* Copyright (c) 2006 Russ Cox */
2 
3 /*
4 
5 tag[1] Rerror error[s]
6 
7 tag[1] Trdmouse
8 tag[1] Rrdmouse x[4] y[4] button[4] msec[4] resized[1]
9 
10 tag[1] Tmoveto x[4] y[4]
11 tag[1] Rmoveto
12 
13 tag[1] Tcursor cursor[]
14 tag[1] Rcursor
15 
16 tag[1] Tcursor2 cursor[]
17 tag[1] Rcursor2
18 
19 tag[1] Tbouncemouse x[4] y[4] button[4]
20 tag[1] Rbouncemouse
21 
22 tag[1] Trdkbd
23 tag[1] Rrdkbd rune[2]
24 
25 tag[1] Tlabel label[s]
26 tag[1] Rlabel 
27 
28 tag[1] Tctxt wsysid[s]
29 tag[1] Rctxt
30 
31 tag[1] Tinit winsize[s] label[s] font[s]
32 tag[1] Rinit
33 
34 tag[1] Trdsnarf 
35 tag[1] Rrdsnarf snarf[s]
36 
37 tag[1] Twrsnarf snarf[s]
38 tag[1] Rwrsnarf
39 
40 tag[1] Trddraw count[4]
41 tag[1] Rrddraw count[4] data[count]
42 
43 tag[1] Twrdraw count[4] data[count]
44 tag[1] Rwrdraw count[4]
45 
46 tag[1] Ttop
47 tag[1] Rtop
48 
49 tag[1] Tresize rect[4*4]
50 tag[1] Rresize 
51 */
52 
53 
54 #define PUT(p, x) \
55 	(p)[0] = ((x) >> 24)&0xFF, \
56 	(p)[1] = ((x) >> 16)&0xFF, \
57 	(p)[2] = ((x) >> 8)&0xFF, \
58 	(p)[3] = (x)&0xFF
59 
60 #define GET(p, x) \
61 	((x) = (u32int)(((p)[0] << 24) | ((p)[1] << 16) | ((p)[2] << 8) | ((p)[3])))
62 
63 #define PUT2(p, x) \
64 	(p)[0] = ((x) >> 8)&0xFF, \
65 	(p)[1] = (x)&0xFF
66 
67 #define GET2(p, x) \
68 	((x) = (((p)[0] << 8) | ((p)[1])))
69 
70 enum {
71 	Rerror = 1,
72 	Trdmouse = 2,
73 	Rrdmouse,
74 	Tmoveto = 4,
75 	Rmoveto,
76 	Tcursor = 6,
77 	Rcursor,
78 	Tbouncemouse = 8,
79 	Rbouncemouse,
80 	Trdkbd = 10,
81 	Rrdkbd,
82 	Tlabel = 12,
83 	Rlabel,
84 	Tinit = 14,
85 	Rinit,
86 	Trdsnarf = 16,
87 	Rrdsnarf,
88 	Twrsnarf = 18,
89 	Rwrsnarf,
90 	Trddraw = 20,
91 	Rrddraw,
92 	Twrdraw = 22,
93 	Rwrdraw,
94 	Ttop = 24,
95 	Rtop,
96 	Tresize = 26,
97 	Rresize,
98 	Tcursor2 = 28,
99 	Rcursor2,
100 	Tctxt = 30,
101 	Rctxt,
102 	Tmax,
103 };
104 
105 enum {
106 	MAXWMSG = 4*1024*1024
107 };
108 
109 typedef struct Wsysmsg Wsysmsg;
110 struct Wsysmsg
111 {
112 	uchar type;
113 	uchar tag;
114 	Mouse mouse;
115 	int resized;
116 	Cursor cursor;
117 	Cursor2 cursor2;
118 	int arrowcursor;
119 	Rune rune;
120 	char *winsize;
121 	char *label;
122 	char *snarf;
123 	char *error;
124 	char *id;
125 	uchar *data;
126 	uint count;
127 	Rectangle rect;
128 };
129 
130 uint	convW2M(Wsysmsg*, uchar*, uint);
131 uint	convM2W(uchar*, uint, Wsysmsg*);
132 uint	sizeW2M(Wsysmsg*);
133 int	readwsysmsg(int, uchar*, uint);
134 
135 int	drawfcallfmt(Fmt*);