1 /* Public Domain Curses */
2
3 #include "pdcdos.h"
4
5 RCSID("$Id: pdcdisp.c,v 1.65 2008/07/13 16:08:17 wmcbrine Exp $")
6
7 /* ACS definitions originally by [email protected] -- these
8 match code page 437 and compatible pages (CP850, CP852, etc.) */
9
10 #ifdef CHTYPE_LONG
11
12 # define A(x) ((chtype)x | A_ALTCHARSET)
13
14 chtype acs_map[128] =
15 {
16 A(0), A(1), A(2), A(3), A(4), A(5), A(6), A(7), A(8), A(9), A(10),
17 A(11), A(12), A(13), A(14), A(15), A(16), A(17), A(18), A(19),
18 A(20), A(21), A(22), A(23), A(24), A(25), A(26), A(27), A(28),
19 A(29), A(30), A(31), ' ', '!', '"', '#', '$', '%', '&', '\'', '(',
20 ')', '*',
21
22 A(0x1a), A(0x1b), A(0x18), A(0x19),
23
24 '/',
25
26 0xdb,
27
28 '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=',
29 '>', '?', '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
30 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
31 'X', 'Y', 'Z', '[', '\\', ']', '^', '_',
32
33 A(0x04), 0xb1,
34
35 'b', 'c', 'd', 'e',
36
37 0xf8, 0xf1, 0xb0, A(0x0f), 0xd9, 0xbf, 0xda, 0xc0, 0xc5, 0x2d, 0x2d,
38 0xc4, 0x2d, 0x5f, 0xc3, 0xb4, 0xc1, 0xc2, 0xb3, 0xf3, 0xf2, 0xe3,
39 0xd8, 0x9c, 0xf9,
40
41 A(127)
42 };
43
44 # undef A
45
46 #endif
47
48 #ifdef __PACIFIC__
movedata(unsigned sseg,unsigned soff,unsigned dseg,unsigned doff,unsigned n)49 void movedata(unsigned sseg, unsigned soff, unsigned dseg,
50 unsigned doff, unsigned n)
51 {
52 far char *src = MK_FP(sseg, soff);
53 far char *dst = MK_FP(dseg, doff);
54
55 while (n--)
56 *dst++ = *src++;
57 }
58 #endif
59
60 /* position hardware cursor at (y, x) */
61
PDC_gotoyx(int row,int col)62 void PDC_gotoyx(int row, int col)
63 {
64 PDCREGS regs;
65
66 PDC_LOG(("PDC_gotoyx() - called: row %d col %d\n", row, col));
67
68 regs.h.ah = 0x02;
69 regs.h.bh = 0;
70 regs.h.dh = (unsigned char) row;
71 regs.h.dl = (unsigned char) col;
72 PDCINT(0x10, regs);
73 }
74
75 /* update the given physical line to look like the corresponding line in
76 curscr */
77
PDC_transform_line(int lineno,int x,int len,const chtype * srcp)78 void PDC_transform_line(int lineno, int x, int len, const chtype *srcp)
79 {
80 int j;
81
82 PDC_LOG(("PDC_transform_line() - called: line %d\n", lineno));
83
84 if (pdc_direct_video)
85 {
86 #if SMALL || MEDIUM
87 # ifndef __PACIFIC__
88 struct SREGS segregs;
89 # endif
90 int ds;
91 #endif
92 /* this should be enough for the maximum width of a screen */
93
94 struct {unsigned char text, attr;} temp_line[256];
95
96 /* replace the attribute part of the chtype with the actual
97 color value for each chtype in the line */
98
99 for (j = 0; j < len; j++)
100 {
101 chtype ch = srcp[j];
102
103 temp_line[j].attr = pdc_atrtab[ch >> PDC_ATTR_SHIFT];
104 #ifdef CHTYPE_LONG
105 if (ch & A_ALTCHARSET && !(ch & 0xff80))
106 ch = acs_map[ch & 0x7f];
107 #endif
108 temp_line[j].text = ch & 0xff;
109 }
110
111 #ifdef __DJGPP__
112 dosmemput(temp_line, len * 2,
113 (unsigned long)_FAR_POINTER(pdc_video_seg,
114 pdc_video_ofs + (lineno * curscr->_maxx + x) * 2));
115 #else
116 # if SMALL || MEDIUM
117 # ifdef __PACIFIC__
118 ds = FP_SEG((void far *) temp_line);
119 # else
120 segread(&segregs);
121 ds = segregs.ds;
122 # endif
123 movedata(ds, (int)temp_line, pdc_video_seg,
124 pdc_video_ofs + (lineno * curscr->_maxx + x) * 2, len * 2);
125 # else
126 memcpy((void *)_FAR_POINTER(pdc_video_seg,
127 pdc_video_ofs + (lineno * curscr->_maxx + x) * 2),
128 temp_line, len * 2);
129 # endif
130 #endif
131
132 }
133 else
134 for (j = 0; j < len;)
135 {
136 PDCREGS regs;
137 unsigned short count = 1;
138 chtype ch = srcp[j];
139
140 while ((j + count < len) && (ch == srcp[j + count]))
141 count++;
142
143 PDC_gotoyx(lineno, j + x);
144
145 regs.h.ah = 0x09;
146 regs.W.bx = pdc_atrtab[ch >> PDC_ATTR_SHIFT];
147 regs.W.cx = count;
148 #ifdef CHTYPE_LONG
149 if (ch & A_ALTCHARSET && !(ch & 0xff80))
150 ch = acs_map[ch & 0x7f];
151 #endif
152 regs.h.al = (unsigned char) (ch & 0xff);
153
154 PDCINT(0x10, regs);
155
156 j += count;
157 }
158 }
159