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1 | /* $OpenBSD: screen.c,v 1.13 2006/04/20 03:25:36 ray Exp $ */ |
1 | /* $OpenBSD: screen.c,v 1.13 2006/04/20 03:25:36 ray Exp $ */ |
2 | /* $NetBSD: screen.c,v 1.4 1995/04/29 01:11:36 mycroft Exp $ */ |
2 | /* $NetBSD: screen.c,v 1.4 1995/04/29 01:11:36 mycroft Exp $ */ |
3 | 3 | ||
4 | /*- |
4 | /*- |
5 | * Copyright (c) 1992, 1993 |
5 | * Copyright (c) 1992, 1993 |
6 | * The Regents of the University of California. All rights reserved. |
6 | * The Regents of the University of California. All rights reserved. |
7 | * |
7 | * |
8 | * This code is derived from software contributed to Berkeley by |
8 | * This code is derived from software contributed to Berkeley by |
9 | * Chris Torek and Darren F. Provine. |
9 | * Chris Torek and Darren F. Provine. |
10 | * |
10 | * |
11 | * Redistribution and use in source and binary forms, with or without |
11 | * Redistribution and use in source and binary forms, with or without |
12 | * modification, are permitted provided that the following conditions |
12 | * modification, are permitted provided that the following conditions |
13 | * are met: |
13 | * are met: |
14 | * 1. Redistributions of source code must retain the above copyright |
14 | * 1. Redistributions of source code must retain the above copyright |
15 | * notice, this list of conditions and the following disclaimer. |
15 | * notice, this list of conditions and the following disclaimer. |
16 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * 2. Redistributions in binary form must reproduce the above copyright |
17 | * notice, this list of conditions and the following disclaimer in the |
17 | * notice, this list of conditions and the following disclaimer in the |
18 | * documentation and/or other materials provided with the distribution. |
18 | * documentation and/or other materials provided with the distribution. |
19 | * 3. Neither the name of the University nor the names of its contributors |
19 | * 3. Neither the name of the University nor the names of its contributors |
20 | * may be used to endorse or promote products derived from this software |
20 | * may be used to endorse or promote products derived from this software |
21 | * without specific prior written permission. |
21 | * without specific prior written permission. |
22 | * |
22 | * |
23 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
23 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
33 | * SUCH DAMAGE. |
33 | * SUCH DAMAGE. |
34 | * |
34 | * |
35 | * @(#)screen.c 8.1 (Berkeley) 5/31/93 |
35 | * @(#)screen.c 8.1 (Berkeley) 5/31/93 |
36 | */ |
36 | */ |
37 | 37 | ||
38 | /* |
38 | /* |
39 | * Tetris screen control. |
39 | * Tetris screen control. |
40 | */ |
40 | */ |
41 | 41 | ||
42 | #include <err.h> |
42 | #include <err.h> |
43 | #include <stdio.h> |
43 | #include <stdio.h> |
44 | #include <stdlib.h> |
44 | #include <stdlib.h> |
45 | #include <string.h> |
45 | #include <string.h> |
46 | #include <unistd.h> |
46 | #include <unistd.h> |
47 | #include <io/stream.h> |
47 | #include <io/stream.h> |
48 | 48 | ||
49 | 49 | ||
50 | #include <async.h> |
50 | #include <async.h> |
51 | #include "screen.h" |
51 | #include "screen.h" |
52 | #include "tetris.h" |
52 | #include "tetris.h" |
53 | #include "../console/console.h" |
53 | #include "../console/console.h" |
54 | 54 | ||
55 | static cell curscreen[B_SIZE]; /* 1 => standout (or otherwise marked) */ |
55 | static cell curscreen[B_SIZE]; /* 1 => standout (or otherwise marked) */ |
56 | static int curscore; |
56 | static int curscore; |
57 | static int isset; /* true => terminal is in game mode */ |
57 | static int isset; /* true => terminal is in game mode */ |
58 | static void (*tstp)(int); |
58 | static void (*tstp)(int); |
59 | 59 | ||
60 | static void scr_stop(int); |
60 | static void scr_stop(int); |
61 | static void stopset(int); |
61 | static void stopset(int); |
62 | 62 | ||
63 | static char |
63 | static char |
64 | *CEstr; /* clear to end of line */ |
64 | *CEstr; /* clear to end of line */ |
65 | 65 | ||
66 | 66 | ||
67 | /* |
67 | /* |
68 | * putstr() is for unpadded strings (either as in termcap(5) or |
68 | * putstr() is for unpadded strings (either as in termcap(5) or |
69 | * simply literal strings); |
69 | * simply literal strings); |
70 | */ |
70 | */ |
71 | static inline void putstr(char *s) |
71 | static inline void putstr(char *s) |
72 | { |
72 | { |
73 | while (*s) |
73 | while (*s) |
74 | putchar(*(s++)); |
74 | putchar(*(s++)); |
75 | } |
75 | } |
76 | 76 | ||
77 | static int con_phone; |
77 | static int con_phone; |
78 | 78 | ||
79 | 79 | ||
80 | 80 | ||
81 | static void set_style(int fgcolor, int bgcolor) |
81 | static void set_style(int fgcolor, int bgcolor) |
82 | { |
82 | { |
83 | send_call_2(con_phone, CONSOLE_SET_STYLE, fgcolor, bgcolor); |
83 | send_call_2(con_phone, CONSOLE_SET_STYLE, fgcolor, bgcolor); |
84 | } |
84 | } |
85 | 85 | ||
86 | static void start_standout(void) |
86 | static void start_standout(void) |
87 | { |
87 | { |
88 | set_style(0, 0xe0e0e0); |
88 | set_style(0, 0xe0e0e0); |
89 | } |
89 | } |
90 | 90 | ||
91 | static void resume_normal(void) |
91 | static void resume_normal(void) |
92 | { |
92 | { |
93 | set_style(0xe0e0e0, 0); |
93 | set_style(0xe0e0e0, 0); |
94 | } |
94 | } |
95 | 95 | ||
- | 96 | ||
- | 97 | void clear_screen(void) |
|
- | 98 | { |
|
- | 99 | send_call(con_phone, CONSOLE_CLEAR, 0); |
|
- | 100 | moveto(0,0); |
|
- | 101 | } |
|
- | 102 | ||
96 | /* |
103 | /* |
97 | * Clear the screen, forgetting the current contents in the process. |
104 | * Clear the screen, forgetting the current contents in the process. |
98 | */ |
105 | */ |
99 | void |
106 | void |
100 | scr_clear(void) |
107 | scr_clear(void) |
101 | { |
108 | { |
102 | 109 | ||
103 | resume_normal(); |
110 | resume_normal(); |
104 | send_call(con_phone, CONSOLE_CLEAR, 0); |
111 | send_call(con_phone, CONSOLE_CLEAR, 0); |
105 | curscore = -1; |
112 | curscore = -1; |
106 | memset((char *)curscreen, 0, sizeof(curscreen)); |
113 | memset((char *)curscreen, 0, sizeof(curscreen)); |
107 | } |
114 | } |
108 | 115 | ||
109 | /* |
116 | /* |
110 | * Set up screen |
117 | * Set up screen |
111 | */ |
118 | */ |
112 | void |
119 | void |
113 | scr_init(void) |
120 | scr_init(void) |
114 | { |
121 | { |
115 | con_phone = get_fd_phone(1); |
122 | con_phone = get_fd_phone(1); |
116 | send_call(con_phone, CONSOLE_CURSOR_VISIBILITY, 0); |
123 | send_call(con_phone, CONSOLE_CURSOR_VISIBILITY, 0); |
117 | resume_normal(); |
124 | resume_normal(); |
118 | scr_clear(); |
125 | scr_clear(); |
119 | } |
126 | } |
120 | 127 | ||
121 | static void moveto(int r, int c) |
128 | void moveto(int r, int c) |
122 | { |
129 | { |
123 | send_call_2(con_phone, CONSOLE_GOTO, r, c); |
130 | send_call_2(con_phone, CONSOLE_GOTO, r, c); |
124 | } |
131 | } |
125 | 132 | ||
126 | static void fflush(void) |
133 | static void fflush(void) |
127 | { |
134 | { |
128 | send_call(con_phone, CONSOLE_FLUSH, 0); |
135 | send_call(con_phone, CONSOLE_FLUSH, 0); |
129 | } |
136 | } |
130 | 137 | ||
131 | struct winsize { |
138 | winsize_t winsize; |
132 | ipcarg_t ws_row; |
- | |
133 | ipcarg_t ws_col; |
- | |
134 | }; |
- | |
135 | 139 | ||
136 | static int get_display_size(struct winsize *ws) |
140 | static int get_display_size(winsize_t *ws) |
137 | { |
141 | { |
138 | return sync_send_2(con_phone, CONSOLE_GETSIZE, 0, 0, &ws->ws_row, &ws->ws_col); |
142 | return sync_send_2(con_phone, CONSOLE_GETSIZE, 0, 0, &ws->ws_row, &ws->ws_col); |
139 | } |
143 | } |
140 | 144 | ||
141 | static void |
145 | static void |
142 | scr_stop(int sig) |
146 | scr_stop(int sig) |
143 | { |
147 | { |
144 | 148 | ||
145 | scr_end(); |
149 | scr_end(); |
146 | scr_set(); |
150 | scr_set(); |
147 | scr_msg(key_msg, 1); |
151 | scr_msg(key_msg, 1); |
148 | } |
152 | } |
149 | 153 | ||
150 | /* |
154 | /* |
151 | * Set up screen mode. |
155 | * Set up screen mode. |
152 | */ |
156 | */ |
153 | void |
157 | void |
154 | scr_set(void) |
158 | scr_set(void) |
155 | { |
159 | { |
156 | struct winsize ws; |
160 | winsize_t ws; |
157 | 161 | ||
158 | Rows = 0, Cols = 0; |
162 | Rows = 0, Cols = 0; |
159 | if (get_display_size(&ws) == 0) { |
163 | if (get_display_size(&ws) == 0) { |
160 | Rows = ws.ws_row; |
164 | Rows = ws.ws_row; |
161 | Cols = ws.ws_col; |
165 | Cols = ws.ws_col; |
162 | } |
166 | } |
163 | if (Rows < MINROWS || Cols < MINCOLS) { |
167 | if (Rows < MINROWS || Cols < MINCOLS) { |
164 | char smallscr[55]; |
168 | char smallscr[55]; |
165 | 169 | ||
166 | snprintf(smallscr, sizeof(smallscr), |
170 | snprintf(smallscr, sizeof(smallscr), |
167 | "the screen is too small (must be at least %dx%d)", |
171 | "the screen is too small (must be at least %dx%d)", |
168 | MINROWS, MINCOLS); |
172 | MINROWS, MINCOLS); |
169 | stop(smallscr); |
173 | stop(smallscr); |
170 | } |
174 | } |
171 | isset = 1; |
175 | isset = 1; |
172 | 176 | ||
173 | scr_clear(); |
177 | scr_clear(); |
174 | } |
178 | } |
175 | 179 | ||
176 | /* |
180 | /* |
177 | * End screen mode. |
181 | * End screen mode. |
178 | */ |
182 | */ |
179 | void |
183 | void |
180 | scr_end(void) |
184 | scr_end(void) |
181 | { |
185 | { |
182 | } |
186 | } |
183 | 187 | ||
184 | void |
188 | void |
185 | stop(char *why) |
189 | stop(char *why) |
186 | { |
190 | { |
187 | 191 | ||
188 | if (isset) |
192 | if (isset) |
189 | scr_end(); |
193 | scr_end(); |
190 | errx(1, "aborting: %s", why); |
194 | errx(1, "aborting: %s", why); |
191 | } |
195 | } |
192 | 196 | ||
193 | 197 | ||
194 | /* |
198 | /* |
195 | * Update the screen. |
199 | * Update the screen. |
196 | */ |
200 | */ |
197 | void |
201 | void |
198 | scr_update(void) |
202 | scr_update(void) |
199 | { |
203 | { |
200 | cell *bp, *sp; |
204 | cell *bp, *sp; |
201 | cell so, cur_so = 0; |
205 | cell so, cur_so = 0; |
202 | int i, ccol, j; |
206 | int i, ccol, j; |
203 | static const struct shape *lastshape; |
207 | static const struct shape *lastshape; |
204 | 208 | ||
205 | /* always leave cursor after last displayed point */ |
209 | /* always leave cursor after last displayed point */ |
206 | curscreen[D_LAST * B_COLS - 1] = -1; |
210 | curscreen[D_LAST * B_COLS - 1] = -1; |
207 | 211 | ||
208 | if (score != curscore) { |
212 | if (score != curscore) { |
209 | moveto(0, 0); |
213 | moveto(0, 0); |
210 | printf("Score: %d", score); |
214 | printf("Score: %d", score); |
211 | curscore = score; |
215 | curscore = score; |
212 | } |
216 | } |
213 | 217 | ||
214 | /* draw preview of next pattern */ |
218 | /* draw preview of next pattern */ |
215 | if (showpreview && (nextshape != lastshape)) { |
219 | if (showpreview && (nextshape != lastshape)) { |
216 | int i; |
220 | int i; |
217 | static int r=5, c=2; |
221 | static int r=5, c=2; |
218 | int tr, tc, t; |
222 | int tr, tc, t; |
219 | 223 | ||
220 | lastshape = nextshape; |
224 | lastshape = nextshape; |
221 | 225 | ||
222 | /* clean */ |
226 | /* clean */ |
223 | resume_normal(); |
227 | resume_normal(); |
224 | moveto(r-1, c-1); putstr(" "); |
228 | moveto(r-1, c-1); putstr(" "); |
225 | moveto(r, c-1); putstr(" "); |
229 | moveto(r, c-1); putstr(" "); |
226 | moveto(r+1, c-1); putstr(" "); |
230 | moveto(r+1, c-1); putstr(" "); |
227 | moveto(r+2, c-1); putstr(" "); |
231 | moveto(r+2, c-1); putstr(" "); |
228 | 232 | ||
229 | moveto(r-3, c-2); |
233 | moveto(r-3, c-2); |
230 | putstr("Next shape:"); |
234 | putstr("Next shape:"); |
231 | 235 | ||
232 | /* draw */ |
236 | /* draw */ |
233 | start_standout(); |
237 | start_standout(); |
234 | moveto(r, 2 * c); |
238 | moveto(r, 2 * c); |
235 | putstr(" "); |
239 | putstr(" "); |
236 | for (i = 0; i < 3; i++) { |
240 | for (i = 0; i < 3; i++) { |
237 | t = c + r * B_COLS; |
241 | t = c + r * B_COLS; |
238 | t += nextshape->off[i]; |
242 | t += nextshape->off[i]; |
239 | 243 | ||
240 | tr = t / B_COLS; |
244 | tr = t / B_COLS; |
241 | tc = t % B_COLS; |
245 | tc = t % B_COLS; |
242 | 246 | ||
243 | moveto(tr, 2*tc); |
247 | moveto(tr, 2*tc); |
244 | putstr(" "); |
248 | putstr(" "); |
245 | } |
249 | } |
246 | resume_normal(); |
250 | resume_normal(); |
247 | } |
251 | } |
248 | 252 | ||
249 | bp = &board[D_FIRST * B_COLS]; |
253 | bp = &board[D_FIRST * B_COLS]; |
250 | sp = &curscreen[D_FIRST * B_COLS]; |
254 | sp = &curscreen[D_FIRST * B_COLS]; |
251 | for (j = D_FIRST; j < D_LAST; j++) { |
255 | for (j = D_FIRST; j < D_LAST; j++) { |
252 | ccol = -1; |
256 | ccol = -1; |
253 | for (i = 0; i < B_COLS; bp++, sp++, i++) { |
257 | for (i = 0; i < B_COLS; bp++, sp++, i++) { |
254 | if (*sp == (so = *bp)) |
258 | if (*sp == (so = *bp)) |
255 | continue; |
259 | continue; |
256 | *sp = so; |
260 | *sp = so; |
257 | if (i != ccol) { |
261 | if (i != ccol) { |
258 | if (cur_so) { |
262 | if (cur_so) { |
259 | resume_normal(); |
263 | resume_normal(); |
260 | cur_so = 0; |
264 | cur_so = 0; |
261 | } |
265 | } |
262 | moveto(RTOD(j), CTOD(i)); |
266 | moveto(RTOD(j), CTOD(i)); |
263 | } |
267 | } |
264 | if (so != cur_so) { |
268 | if (so != cur_so) { |
265 | if (so) |
269 | if (so) |
266 | start_standout(); |
270 | start_standout(); |
267 | else |
271 | else |
268 | resume_normal(); |
272 | resume_normal(); |
269 | cur_so = so; |
273 | cur_so = so; |
270 | } |
274 | } |
271 | putstr(" "); |
275 | putstr(" "); |
272 | 276 | ||
273 | ccol = i + 1; |
277 | ccol = i + 1; |
274 | /* |
278 | /* |
275 | * Look ahead a bit, to avoid extra motion if |
279 | * Look ahead a bit, to avoid extra motion if |
276 | * we will be redrawing the cell after the next. |
280 | * we will be redrawing the cell after the next. |
277 | * Motion probably takes four or more characters, |
281 | * Motion probably takes four or more characters, |
278 | * so we save even if we rewrite two cells |
282 | * so we save even if we rewrite two cells |
279 | * `unnecessarily'. Skip it all, though, if |
283 | * `unnecessarily'. Skip it all, though, if |
280 | * the next cell is a different color. |
284 | * the next cell is a different color. |
281 | */ |
285 | */ |
282 | #define STOP (B_COLS - 3) |
286 | #define STOP (B_COLS - 3) |
283 | if (i > STOP || sp[1] != bp[1] || so != bp[1]) |
287 | if (i > STOP || sp[1] != bp[1] || so != bp[1]) |
284 | continue; |
288 | continue; |
285 | if (sp[2] != bp[2]) |
289 | if (sp[2] != bp[2]) |
286 | sp[1] = -1; |
290 | sp[1] = -1; |
287 | else if (i < STOP && so == bp[2] && sp[3] != bp[3]) { |
291 | else if (i < STOP && so == bp[2] && sp[3] != bp[3]) { |
288 | sp[2] = -1; |
292 | sp[2] = -1; |
289 | sp[1] = -1; |
293 | sp[1] = -1; |
290 | } |
294 | } |
291 | } |
295 | } |
292 | } |
296 | } |
293 | if (cur_so) |
297 | if (cur_so) |
294 | resume_normal(); |
298 | resume_normal(); |
295 | fflush(); |
299 | fflush(); |
296 | } |
300 | } |
297 | 301 | ||
298 | /* |
302 | /* |
299 | * Write a message (set!=0), or clear the same message (set==0). |
303 | * Write a message (set!=0), or clear the same message (set==0). |
300 | * (We need its length in case we have to overwrite with blanks.) |
304 | * (We need its length in case we have to overwrite with blanks.) |
301 | */ |
305 | */ |
302 | void |
306 | void |
303 | scr_msg(char *s, int set) |
307 | scr_msg(char *s, int set) |
304 | { |
308 | { |
305 | 309 | ||
306 | int l = strlen(s); |
310 | int l = strlen(s); |
307 | 311 | ||
308 | moveto(Rows - 2, ((Cols - l) >> 1) - 1); |
312 | moveto(Rows - 2, ((Cols - l) >> 1) - 1); |
309 | if (set) |
313 | if (set) |
310 | putstr(s); |
314 | putstr(s); |
311 | else |
315 | else |
312 | while (--l >= 0) |
316 | while (--l >= 0) |
313 | (void) putchar(' '); |
317 | (void) putchar(' '); |
314 | } |
318 | } |
315 | 319 |