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
|
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <limits.h> //PATH_MAX
#include "libtmt/tmt.h"
//these numbers include the space between characters
//apple401 font is this wide:
//#define FONTW 14
//#define FONTH 16
//epoch font is this wide:
#define FONTW 6
#define FONTH 10
//////////////////////////////////// hey. you can do some config here. either preload glyphs or re-read font file each time.
//comment out the next line if you want what is probably the slow version. might be safer and use less memory though.
//maybe just put the font file in ram. linux caches that crap anyway, right?
//testing showed preloading was at least 10x faster.
#define PRELOAD_GLYPHS
//only 8-bit characters atm.
//and we'll need to malloc the amount of lines each character will have.
//and malloc each line in that glyph...
//or just set it statically.
#ifdef PRELOAD_GLYPHS
#define MAXCHARACTER 256
#define MAXLINESPERGLYPH 16
#define MAXCHARSPERGLYPHLINE 256
char glyphs[MAXCHARACTER][MAXLINESPERGLYPH][MAXCHARSPERGLYPHLINE];
char font_file[PATH_MAX];
void preload_glyphs() {
char line[MAXCHARSPERGLYPHLINE];//tmp storage
FILE *fp;
int charN;
int i;
for(i=0;i<MAXCHARACTER;i++) {
glyphs[i][0][0]=0;//zero out the first byte of the first line of every glyph. we'll mark the end if we actually read something
}
if((fp=fopen(font_file,"r")) == NULL) {
fprintf(stderr,"hackvr_term: failed to open font file: %s\n",font_file);
exit(1);
}
for(i=0;fgets(line,sizeof(line)-1,fp) != 0;i++) {
if(charN != strtol(line,0,16)) {
i=0;
charN=strtol(line,0,16);
}
strcpy(glyphs[charN][i],line);
glyphs[charN][i+1][0]=0;//mark the end here. if we do it inside the conditional it won't mark the last one.
}
fclose(fp);
}
void hackvr_draw_character(int c,int r,const TMTCHAR *ch) {
char *line;
int i,ret=0;
printf("term_%02d_%02d addshape %d 4 -1 -3 0 5 -3 0 5 7 0 -1 7 0\n",c,r,ch->a.bg+15);
for(i=0,line=glyphs[ch->c][0];line[0];i++,line=glyphs[ch->c][i]) {
ret=1;
printf("term_%02d_%02d addshape %d %s",c,r,ch->a.fg == -1 ? 17 : ch->a.fg + 15,line+strlen("XX addshape X"));
}
if(ret) {//if we drew something we should place it somewhere.
printf("term_%02d_%02d move %d %d 0\n",c,r,c*FONTW,-r*FONTH);
}
}
#else
void hackvr_draw_character(int c,int r,const TMTCHAR *ch) {//this is slow but allows you to change the font between each character... if you really wanted that.
int i;
FILE *fp;
char str[16];
char line[256];//whatever
if(ch->c < 128) {
snprintf(str,sizeof(str)-1,"%02lx",ch->c);
} else {
snprintf(str,sizeof(str)-1,"%08lx",ch->c);
}
if((fp=fopen(font_file,"r")) == NULL ) {
fprintf(stderr,"# fail to open font\n");
exit(1);
}
printf("term_%02d_%02d addshape %d 4 -1 -3 0 5 -3 0 5 7 0 -1 7 0\n",c,r,ch->a.bg+15);
for(i=0;fgets(line,sizeof(line)-1,fp) != 0;i++) {
if(!strncmp(str,line,2)) {
printf("term_%02d_%02d addshape %d %s",c,r,ch->a.fg==-1?2:ch->a.fg+15,line+strlen("XX addshape X "));
}
}
if(i) printf("term_%02d_%02d move %d %d 0\n",c,r,c*FONTW,-r*FONTH);
fclose(fp);
}
#endif
void callback(tmt_msg_t m,TMT *vt, const void *a,void *vt_old) {
static int cr_old=0;
static int cc_old=0;
const TMTSCREEN *s_old=tmt_screen(vt_old);
const TMTSCREEN *s=tmt_screen(vt);
const TMTPOINT *c=tmt_cursor(vt);
const TMTCHAR *ch;
switch(m) {
case TMT_MSG_BELL:
printf("term set global.beep\n");
break;
case TMT_MSG_UPDATE:
for (size_t r = 0; r < s->nline; r++){
if (s->lines[r]->dirty){
for (size_t c = 0; c < s->ncol; c++){
if(memcmp(&(s->lines[r]->chars[c]),&(s_old->lines[r]->chars[c]),sizeof(TMTCHAR))) {
ch=&(s->lines[r]->chars[c]);
printf("term_%02d_%02d deletegroup term_%02d_%02d\n",c,r,c,r);
hackvr_draw_character(c,r,ch);
memcpy(&(s_old->lines[r]->chars[c]),&(s->lines[r]->chars[c]),sizeof(TMTCHAR));
}
}
}
}
break;
case TMT_MSG_ANSWER://what does this do?
fprintf(stderr,"ANSWER: %s\n",(const char *)a);
break;
case TMT_MSG_MOVED:
printf("cursor move %d %d 0\n", (c->c - cc_old) * 5, - (c->r - cr_old) * 9);//calculate relative movement needed based on previous and current positions.
cr_old=c->r;
cc_old=c->c;
break;
case TMT_MSG_CURSOR:
if(!strcmp(a,"t")) {
printf("cursor deletegroup cursor\n");//just delete it and redraw the cursor.
printf("cursor addshape 2 4 0 -2 0 4 -2 0 4 6 0 0 6 0\n");//let's pretend this is how cursors should be.
printf("cursor move %d %d 0\n",c->c * 5,-c->r * 9);
}
if(!strcmp(a,"f")) {
printf("cursor deletegroup cursor\n");
cr_old=0;
cc_old=0;
}
break;
default:
fprintf(stderr,"unhandled message type: %d\n",m);
}
return;
}
int main(int argc,char *argv[]) {
char in[16];
if(argc < 3) return fprintf(stderr,"usage: ./hackvr_term cols rows\n"),1;
int r=atoi(argv[2]);
int ret=0;
int c=atoi(argv[1]);
if(!getenv("PREFIX")) {
fprintf(stderr,"hackvr_term: PREFIX is not set. I dunno where to find my fonts.\n");
return 1;
}
snprintf(font_file,sizeof(font_file)-1,"%s/share/hackvr/font/default.hackvr",getenv("PREFIX"));
#ifdef PRELOAD_GLYPHS
printf("# hackvr_term: preloading glyphs\n");
preload_glyphs();//will exit on error
printf("# hackvr_term: done.\n");
#endif
setbuf(stdin,0);
setbuf(stdout,0);
TMT *vt_old = tmt_open(r,c,NULL,NULL,NULL);
if(!vt_old) return fprintf(stderr,"failed to open tmt's virtual terminal for storage"),1;
TMT *vt = tmt_open(r,c,callback,vt_old,NULL);
if(!vt) return fprintf(stderr,"failed to open tmt's virtual terminal"),1;
//read from stdin and write to terminal.
while((ret=read(0,in,16)) != 0) {//16 bytes at a time work?
if(ret == -1) {
if(errno == EAGAIN) continue;
break;
}
tmt_write(vt,in,ret);
}
tmt_close(vt);
return 0;
}
|
