-
Notifications
You must be signed in to change notification settings - Fork 0
/
yGLTEX_ramp.c
190 lines (179 loc) · 6.46 KB
/
yGLTEX_ramp.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
/*============================----beg-of-source---============================*/
#include "yGLTEX.h"
#include "yGLTEX_priv.h"
char *zYGLTEX_allow = "°¬Œ²Š";
char *zYGLTEX_minimal = " ´:-=+*#%@";
char *zYGLTEX_shrike = " ·-á~´+=â¤ñìGíÿ@B#¯"; /* 0 to 21 pixels (range of 22) lit of 60 available (6x10 font) */
/*====================------------------------------------====================*/
/*===---- ascii-art ramping ----===*/
/*====================------------------------------------====================*/
static void o___RAMP_______________o (void) {;}
uchar
ygltex_ramp_alpha2char (char a_ramp, uchar v, uchar *c)
{
/*---(locals)-----------+-----+-----+-*/
char rce = -10;
char *x_valid = NULL;
char l = 0;
char i = 0;
uchar n, d;
float x_inc = 0;
/*---(header)-------------------------*/
DEBUG_YGLTEX yLOG_enter (__FUNCTION__);
/*---(default)------------------------*/
if (c != NULL) *c = '°';
/*---(handle type)--------------------*/
DEBUG_YGLTEX yLOG_char ("a_ramp" , a_ramp);
--rce; switch (a_ramp) {
case 's' :
DEBUG_YGLTEX yLOG_note ("set as shrike-specific (20)");
x_valid = zYGLTEX_shrike;
break;
case '-' :
DEBUG_YGLTEX yLOG_note ("set as minimal (10)");
x_valid = zYGLTEX_minimal;
break;
default :
DEBUG_YGLTEX yLOG_note ("type not recognized");
DEBUG_YGLTEX yLOG_exitr (__FUNCTION__, rce);
return '°';
}
DEBUG_YGLTEX yLOG_info ("x_valid" , x_valid);
l = strlen (x_valid);
DEBUG_YGLTEX yLOG_value ("l" , l);
x_inc = 256.0 / l;
DEBUG_YGLTEX yLOG_double ("x_inc" , x_inc);
DEBUG_YGLTEX yLOG_value ("v" , v);
n = v / x_inc;
DEBUG_YGLTEX yLOG_value ("n" , n);
d = x_valid [n];
DEBUG_YGLTEX yLOG_char ("d" , d);
/*---(save-back)----------------------*/
if (c != NULL) *c = d;
/*---(complete)-----------------------*/
DEBUG_YGLTEX yLOG_exit (__FUNCTION__);
return d;
}
uchar
ygltex_ramp_char2alpha (char a_ramp, uchar c, uchar *a)
{
/*---(locals)-----------+-----+-----+-*/
char rce = -10;
char *x_valid = NULL;
char l = 0;
char i = 0;
char *p = NULL;
uchar n, d;
float x_inc = 0;
/*---(header)-------------------------*/
DEBUG_YGLTEX yLOG_enter (__FUNCTION__);
/*---(default)------------------------*/
if (a != NULL) *a = 0;
/*---(defense)------------------------*/
DEBUG_YGLTEX yLOG_value ("c" , c);
--rce; if (c < 32 || c == 127) {
DEBUG_YGLTEX yLOG_exitr (__FUNCTION__, rce);
return '°';
}
DEBUG_YGLTEX yLOG_char ("c" , c);
/*---(quick-out)----------------------*/
if (strchr (zYGLTEX_allow, c) != NULL) {
DEBUG_YGLTEX yLOG_note ("filler characters, alpha is zero");
d = 0;
if (a != NULL) *a = d;
DEBUG_YGLTEX yLOG_exit (__FUNCTION__);
return d;
}
if (a_ramp == '-' && c == (uchar) '·') {
DEBUG_YGLTEX yLOG_note ("special minimal filler, alpha is zero");
d = 0;
if (a != NULL) *a = d;
DEBUG_YGLTEX yLOG_exit (__FUNCTION__);
return d;
}
/*---(handle type)--------------------*/
DEBUG_YGLTEX yLOG_char ("a_ramp" , a_ramp);
--rce; switch (a_ramp) {
case 's' :
DEBUG_YGLTEX yLOG_note ("set as shrike-specific (20)");
x_valid = zYGLTEX_shrike;
break;
case '-' :
DEBUG_YGLTEX yLOG_note ("set as minimal (10)");
x_valid = zYGLTEX_minimal;
break;
default :
DEBUG_YGLTEX yLOG_note ("type not recognized");
DEBUG_YGLTEX yLOG_exitr (__FUNCTION__, rce);
return '°';
}
DEBUG_YGLTEX yLOG_info ("x_valid" , x_valid);
l = strlen (x_valid);
DEBUG_YGLTEX yLOG_value ("l" , l);
x_inc = 255.0 / (l - 1);
DEBUG_YGLTEX yLOG_double ("x_inc" , x_inc);
p = strchr (x_valid, c);
DEBUG_YGLTEX yLOG_point ("p" , p);
--rce; if (p == NULL) {
DEBUG_YGLTEX yLOG_exitr (__FUNCTION__, rce);
return '°';
}
n = p - x_valid;
DEBUG_YGLTEX yLOG_value ("n" , n);
d = n * x_inc;
DEBUG_YGLTEX yLOG_value ("d" , d);
/*---(save-back)----------------------*/
if (a != NULL) *a = d;
/*---(complete)-----------------------*/
DEBUG_YGLTEX yLOG_exit (__FUNCTION__);
return d;
}
char
ygltex_ramp_audit (int a_line, int a_col, int x_beg, char a_ramp, char a_inside [LEN_FULL])
{
/*---(locals)-----------+-----+-----+-*/
char rce = -10;
char *x_valid = NULL;
int l = 0;
int i = 0;
/*---(header)-------------------------*/
DEBUG_YGLTEX yLOG_enter (__FUNCTION__);
/*---(defense)------------------------*/
DEBUG_YGLTEX yLOG_point ("a_inside" , a_inside);
--rce; if (a_inside == NULL) {
DEBUG_YGLTEX yLOG_exitr (__FUNCTION__, rce);
return rce;
}
DEBUG_YGLTEX yLOG_info ("a_inside" , a_inside);
/*---(handle type)--------------------*/
DEBUG_YGLTEX yLOG_char ("a_ramp" , a_ramp);
--rce; switch (a_ramp) {
case 's' :
DEBUG_YGLTEX yLOG_note ("set as shrike-specific (20)");
x_valid = zYGLTEX_shrike;
break;
case '-' :
DEBUG_YGLTEX yLOG_note ("set as minimal (10)");
x_valid = zYGLTEX_minimal;
break;
default :
DEBUG_YGLTEX yLOG_note ("ramp not recognized");
DEBUG_YGLTEX yLOG_exitr (__FUNCTION__, rce);
return rce;
}
DEBUG_YGLTEX yLOG_info ("x_valid" , x_valid);
/*---(validate)-----------------------*/
l = strlen (a_inside);
DEBUG_YGLTEX yLOG_value ("l" , l);
--rce; for (i = 0; i < l; ++i) {
if (strchr (zYGLTEX_allow, a_inside [i]) != NULL) continue;
if (strchr (x_valid, a_inside [i]) == NULL) {
yURG_err ('f', "%4d, tile detail, column %d at pos %d (%c) not legal (%s) or ignored (%s)", a_line, a_col, x_beg + i, a_inside [i], x_valid, zYGLTEX_allow);
DEBUG_YGLTEX yLOG_exitr (__FUNCTION__, rce);
return rce;
}
}
/*---(complete)-----------------------*/
DEBUG_YGLTEX yLOG_exit (__FUNCTION__);
return 0;
}