rasops8.c revision 1.12 1 1.12 lukem /* $NetBSD: rasops8.c,v 1.12 2001/11/13 07:00:23 lukem Exp $ */
2 1.1 ad
3 1.4 ad /*-
4 1.4 ad * Copyright (c) 1999 The NetBSD Foundation, Inc.
5 1.1 ad * All rights reserved.
6 1.1 ad *
7 1.4 ad * This code is derived from software contributed to The NetBSD Foundation
8 1.9 ad * by Andrew Doran.
9 1.4 ad *
10 1.1 ad * Redistribution and use in source and binary forms, with or without
11 1.1 ad * modification, are permitted provided that the following conditions
12 1.1 ad * are met:
13 1.1 ad * 1. Redistributions of source code must retain the above copyright
14 1.1 ad * notice, this list of conditions and the following disclaimer.
15 1.1 ad * 2. Redistributions in binary form must reproduce the above copyright
16 1.1 ad * notice, this list of conditions and the following disclaimer in the
17 1.1 ad * documentation and/or other materials provided with the distribution.
18 1.4 ad * 3. All advertising materials mentioning features or use of this software
19 1.4 ad * must display the following acknowledgement:
20 1.4 ad * This product includes software developed by the NetBSD
21 1.4 ad * Foundation, Inc. and its contributors.
22 1.4 ad * 4. Neither the name of The NetBSD Foundation nor the names of its
23 1.4 ad * contributors may be used to endorse or promote products derived
24 1.4 ad * from this software without specific prior written permission.
25 1.1 ad *
26 1.4 ad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 1.4 ad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 1.4 ad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 1.4 ad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 1.4 ad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 1.4 ad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 1.4 ad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 1.4 ad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 1.4 ad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 1.4 ad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 1.4 ad * POSSIBILITY OF SUCH DAMAGE.
37 1.1 ad */
38 1.2 ad
39 1.12 lukem #include <sys/cdefs.h>
40 1.12 lukem __KERNEL_RCSID(0, "$NetBSD: rasops8.c,v 1.12 2001/11/13 07:00:23 lukem Exp $");
41 1.12 lukem
42 1.1 ad #include "opt_rasops.h"
43 1.1 ad
44 1.1 ad #include <sys/types.h>
45 1.1 ad #include <sys/param.h>
46 1.1 ad #include <sys/systm.h>
47 1.1 ad #include <sys/time.h>
48 1.1 ad
49 1.1 ad #include <dev/wscons/wsdisplayvar.h>
50 1.1 ad #include <dev/wscons/wsconsio.h>
51 1.1 ad #include <dev/rasops/rasops.h>
52 1.1 ad
53 1.1 ad static void rasops8_putchar __P((void *, int, int, u_int, long attr));
54 1.7 ad #ifndef RASOPS_SMALL
55 1.1 ad static void rasops8_putchar8 __P((void *, int, int, u_int, long attr));
56 1.1 ad static void rasops8_putchar12 __P((void *, int, int, u_int, long attr));
57 1.1 ad static void rasops8_putchar16 __P((void *, int, int, u_int, long attr));
58 1.6 ad static void rasops8_makestamp __P((struct rasops_info *ri, long));
59 1.1 ad
60 1.8 pk /*
61 1.8 pk * 4x1 stamp for optimized character blitting
62 1.1 ad */
63 1.1 ad static int32_t stamp[16];
64 1.1 ad static long stamp_attr;
65 1.1 ad static int stamp_mutex; /* XXX see note in README */
66 1.10 bjh21 #endif
67 1.1 ad
68 1.1 ad /*
69 1.1 ad * XXX this confuses the hell out of gcc2 (not egcs) which always insists
70 1.1 ad * that the shift count is negative.
71 1.1 ad *
72 1.1 ad * offset = STAMP_SHIFT(fontbits, nibble #) & STAMP_MASK
73 1.1 ad * destination = STAMP_READ(offset)
74 1.1 ad */
75 1.1 ad #define STAMP_SHIFT(fb,n) ((n*4-2) >= 0 ? (fb)>>(n*4-2):(fb)<<-(n*4-2))
76 1.8 pk #define STAMP_MASK (0xf << 2)
77 1.1 ad #define STAMP_READ(o) (*(int32_t *)((caddr_t)stamp + (o)))
78 1.1 ad
79 1.1 ad /*
80 1.11 wiz * Initialize a 'rasops_info' descriptor for this depth.
81 1.1 ad */
82 1.1 ad void
83 1.1 ad rasops8_init(ri)
84 1.1 ad struct rasops_info *ri;
85 1.1 ad {
86 1.8 pk
87 1.1 ad switch (ri->ri_font->fontwidth) {
88 1.7 ad #ifndef RASOPS_SMALL
89 1.1 ad case 8:
90 1.1 ad ri->ri_ops.putchar = rasops8_putchar8;
91 1.1 ad break;
92 1.1 ad case 12:
93 1.1 ad ri->ri_ops.putchar = rasops8_putchar12;
94 1.1 ad break;
95 1.1 ad case 16:
96 1.1 ad ri->ri_ops.putchar = rasops8_putchar16;
97 1.1 ad break;
98 1.7 ad #endif /* !RASOPS_SMALL */
99 1.1 ad default:
100 1.1 ad ri->ri_ops.putchar = rasops8_putchar;
101 1.1 ad break;
102 1.1 ad }
103 1.1 ad }
104 1.1 ad
105 1.1 ad /*
106 1.3 ad * Put a single character.
107 1.1 ad */
108 1.1 ad static void
109 1.1 ad rasops8_putchar(cookie, row, col, uc, attr)
110 1.1 ad void *cookie;
111 1.1 ad int row, col;
112 1.1 ad u_int uc;
113 1.1 ad long attr;
114 1.1 ad {
115 1.7 ad int width, height, cnt, fs, fb;
116 1.7 ad u_char *dp, *rp, *fr, clr[2];
117 1.1 ad struct rasops_info *ri;
118 1.8 pk
119 1.1 ad ri = (struct rasops_info *)cookie;
120 1.1 ad
121 1.8 pk #ifdef RASOPS_CLIPPING
122 1.8 pk /* Catches 'row < 0' case too */
123 1.1 ad if ((unsigned)row >= (unsigned)ri->ri_rows)
124 1.1 ad return;
125 1.1 ad
126 1.1 ad if ((unsigned)col >= (unsigned)ri->ri_cols)
127 1.1 ad return;
128 1.1 ad #endif
129 1.1 ad rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale;
130 1.1 ad
131 1.1 ad height = ri->ri_font->fontheight;
132 1.1 ad width = ri->ri_font->fontwidth;
133 1.8 pk clr[0] = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf];
134 1.8 pk clr[1] = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf];
135 1.8 pk
136 1.1 ad if (uc == ' ') {
137 1.8 pk u_char c = clr[0];
138 1.8 pk
139 1.1 ad while (height--) {
140 1.1 ad dp = rp;
141 1.1 ad rp += ri->ri_stride;
142 1.8 pk
143 1.1 ad for (cnt = width; cnt; cnt--)
144 1.8 pk *dp++ = c;
145 1.1 ad }
146 1.1 ad } else {
147 1.1 ad uc -= ri->ri_font->firstchar;
148 1.1 ad fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
149 1.1 ad fs = ri->ri_font->stride;
150 1.1 ad
151 1.1 ad while (height--) {
152 1.1 ad dp = rp;
153 1.1 ad fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) | (fr[0] << 24);
154 1.1 ad fr += fs;
155 1.1 ad rp += ri->ri_stride;
156 1.8 pk
157 1.1 ad for (cnt = width; cnt; cnt--) {
158 1.1 ad *dp++ = clr[(fb >> 31) & 1];
159 1.1 ad fb <<= 1;
160 1.1 ad }
161 1.1 ad }
162 1.8 pk }
163 1.1 ad
164 1.1 ad /* Do underline */
165 1.7 ad if ((attr & 1) != 0) {
166 1.8 pk u_char c = clr[1];
167 1.8 pk
168 1.1 ad rp -= (ri->ri_stride << 1);
169 1.1 ad
170 1.1 ad while (width--)
171 1.8 pk *rp++ = c;
172 1.8 pk }
173 1.1 ad }
174 1.1 ad
175 1.7 ad #ifndef RASOPS_SMALL
176 1.1 ad /*
177 1.1 ad * Recompute the 4x1 blitting stamp.
178 1.1 ad */
179 1.1 ad static void
180 1.6 ad rasops8_makestamp(ri, attr)
181 1.6 ad struct rasops_info *ri;
182 1.3 ad long attr;
183 1.1 ad {
184 1.7 ad int32_t fg, bg;
185 1.1 ad int i;
186 1.5 ad
187 1.8 pk fg = ri->ri_devcmap[(attr >> 24) & 0xf] & 0xff;
188 1.8 pk bg = ri->ri_devcmap[(attr >> 16) & 0xf] & 0xff;
189 1.1 ad stamp_attr = attr;
190 1.8 pk
191 1.1 ad for (i = 0; i < 16; i++) {
192 1.1 ad #if BYTE_ORDER == LITTLE_ENDIAN
193 1.1 ad stamp[i] = (i & 8 ? fg : bg);
194 1.1 ad stamp[i] |= ((i & 4 ? fg : bg) << 8);
195 1.1 ad stamp[i] |= ((i & 2 ? fg : bg) << 16);
196 1.1 ad stamp[i] |= ((i & 1 ? fg : bg) << 24);
197 1.1 ad #else
198 1.1 ad stamp[i] = (i & 1 ? fg : bg);
199 1.1 ad stamp[i] |= ((i & 2 ? fg : bg) << 8);
200 1.1 ad stamp[i] |= ((i & 4 ? fg : bg) << 16);
201 1.1 ad stamp[i] |= ((i & 8 ? fg : bg) << 24);
202 1.1 ad #endif
203 1.1 ad }
204 1.1 ad }
205 1.1 ad
206 1.1 ad /*
207 1.3 ad * Put a single character. This is for 8-pixel wide fonts.
208 1.1 ad */
209 1.1 ad static void
210 1.1 ad rasops8_putchar8(cookie, row, col, uc, attr)
211 1.1 ad void *cookie;
212 1.1 ad int row, col;
213 1.1 ad u_int uc;
214 1.1 ad long attr;
215 1.1 ad {
216 1.1 ad struct rasops_info *ri;
217 1.1 ad int height, fs;
218 1.1 ad int32_t *rp;
219 1.1 ad u_char *fr;
220 1.8 pk
221 1.1 ad /* Can't risk remaking the stamp if it's already in use */
222 1.1 ad if (stamp_mutex++) {
223 1.1 ad stamp_mutex--;
224 1.1 ad rasops8_putchar(cookie, row, col, uc, attr);
225 1.1 ad return;
226 1.1 ad }
227 1.1 ad
228 1.1 ad ri = (struct rasops_info *)cookie;
229 1.1 ad
230 1.8 pk #ifdef RASOPS_CLIPPING
231 1.1 ad if ((unsigned)row >= (unsigned)ri->ri_rows) {
232 1.1 ad stamp_mutex--;
233 1.1 ad return;
234 1.1 ad }
235 1.1 ad
236 1.1 ad if ((unsigned)col >= (unsigned)ri->ri_cols) {
237 1.1 ad stamp_mutex--;
238 1.1 ad return;
239 1.1 ad }
240 1.1 ad #endif
241 1.1 ad
242 1.1 ad /* Recompute stamp? */
243 1.1 ad if (attr != stamp_attr)
244 1.6 ad rasops8_makestamp(ri, attr);
245 1.8 pk
246 1.1 ad rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
247 1.1 ad height = ri->ri_font->fontheight;
248 1.8 pk
249 1.1 ad if (uc == ' ') {
250 1.1 ad while (height--) {
251 1.8 pk rp[0] = rp[1] = stamp[0];
252 1.1 ad DELTA(rp, ri->ri_stride, int32_t *);
253 1.8 pk }
254 1.1 ad } else {
255 1.1 ad uc -= ri->ri_font->firstchar;
256 1.1 ad fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
257 1.1 ad fs = ri->ri_font->stride;
258 1.8 pk
259 1.1 ad while (height--) {
260 1.1 ad rp[0] = STAMP_READ(STAMP_SHIFT(fr[0], 1) & STAMP_MASK);
261 1.1 ad rp[1] = STAMP_READ(STAMP_SHIFT(fr[0], 0) & STAMP_MASK);
262 1.1 ad
263 1.1 ad fr += fs;
264 1.8 pk DELTA(rp, ri->ri_stride, int32_t *);
265 1.1 ad }
266 1.1 ad }
267 1.1 ad
268 1.1 ad /* Do underline */
269 1.7 ad if ((attr & 1) != 0) {
270 1.8 pk DELTA(rp, -(ri->ri_stride << 1), int32_t *);
271 1.8 pk rp[0] = rp[1] = stamp[15];
272 1.8 pk }
273 1.8 pk
274 1.8 pk stamp_mutex--;
275 1.1 ad }
276 1.1 ad
277 1.1 ad /*
278 1.3 ad * Put a single character. This is for 12-pixel wide fonts.
279 1.1 ad */
280 1.1 ad static void
281 1.1 ad rasops8_putchar12(cookie, row, col, uc, attr)
282 1.1 ad void *cookie;
283 1.1 ad int row, col;
284 1.1 ad u_int uc;
285 1.1 ad long attr;
286 1.1 ad {
287 1.1 ad struct rasops_info *ri;
288 1.1 ad int height, fs;
289 1.1 ad int32_t *rp;
290 1.1 ad u_char *fr;
291 1.8 pk
292 1.1 ad /* Can't risk remaking the stamp if it's already in use */
293 1.1 ad if (stamp_mutex++) {
294 1.1 ad stamp_mutex--;
295 1.1 ad rasops8_putchar(cookie, row, col, uc, attr);
296 1.1 ad return;
297 1.1 ad }
298 1.1 ad
299 1.1 ad ri = (struct rasops_info *)cookie;
300 1.1 ad
301 1.8 pk #ifdef RASOPS_CLIPPING
302 1.1 ad if ((unsigned)row >= (unsigned)ri->ri_rows) {
303 1.1 ad stamp_mutex--;
304 1.1 ad return;
305 1.1 ad }
306 1.1 ad
307 1.1 ad if ((unsigned)col >= (unsigned)ri->ri_cols) {
308 1.1 ad stamp_mutex--;
309 1.1 ad return;
310 1.1 ad }
311 1.1 ad #endif
312 1.1 ad
313 1.1 ad /* Recompute stamp? */
314 1.1 ad if (attr != stamp_attr)
315 1.6 ad rasops8_makestamp(ri, attr);
316 1.8 pk
317 1.1 ad rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
318 1.1 ad height = ri->ri_font->fontheight;
319 1.8 pk
320 1.1 ad if (uc == ' ') {
321 1.1 ad while (height--) {
322 1.8 pk int32_t c = stamp[0];
323 1.8 pk
324 1.8 pk rp[0] = rp[1] = rp[2] = c;
325 1.8 pk DELTA(rp, ri->ri_stride, int32_t *);
326 1.8 pk }
327 1.1 ad } else {
328 1.1 ad uc -= ri->ri_font->firstchar;
329 1.1 ad fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
330 1.1 ad fs = ri->ri_font->stride;
331 1.8 pk
332 1.1 ad while (height--) {
333 1.1 ad rp[0] = STAMP_READ(STAMP_SHIFT(fr[0], 1) & STAMP_MASK);
334 1.1 ad rp[1] = STAMP_READ(STAMP_SHIFT(fr[0], 0) & STAMP_MASK);
335 1.1 ad rp[2] = STAMP_READ(STAMP_SHIFT(fr[1], 1) & STAMP_MASK);
336 1.8 pk
337 1.1 ad fr += fs;
338 1.8 pk DELTA(rp, ri->ri_stride, int32_t *);
339 1.1 ad }
340 1.8 pk }
341 1.1 ad
342 1.1 ad /* Do underline */
343 1.7 ad if ((attr & 1) != 0) {
344 1.8 pk DELTA(rp, -(ri->ri_stride << 1), int32_t *);
345 1.8 pk rp[0] = rp[1] = rp[2] = stamp[15];
346 1.8 pk }
347 1.8 pk
348 1.1 ad stamp_mutex--;
349 1.1 ad }
350 1.1 ad
351 1.1 ad /*
352 1.3 ad * Put a single character. This is for 16-pixel wide fonts.
353 1.1 ad */
354 1.1 ad static void
355 1.1 ad rasops8_putchar16(cookie, row, col, uc, attr)
356 1.1 ad void *cookie;
357 1.1 ad int row, col;
358 1.1 ad u_int uc;
359 1.1 ad long attr;
360 1.1 ad {
361 1.1 ad struct rasops_info *ri;
362 1.1 ad int height, fs;
363 1.1 ad int32_t *rp;
364 1.1 ad u_char *fr;
365 1.1 ad
366 1.1 ad /* Can't risk remaking the stamp if it's already in use */
367 1.1 ad if (stamp_mutex++) {
368 1.1 ad stamp_mutex--;
369 1.1 ad rasops8_putchar(cookie, row, col, uc, attr);
370 1.1 ad return;
371 1.1 ad }
372 1.1 ad
373 1.1 ad ri = (struct rasops_info *)cookie;
374 1.1 ad
375 1.8 pk #ifdef RASOPS_CLIPPING
376 1.1 ad if ((unsigned)row >= (unsigned)ri->ri_rows) {
377 1.1 ad stamp_mutex--;
378 1.1 ad return;
379 1.1 ad }
380 1.1 ad
381 1.1 ad if ((unsigned)col >= (unsigned)ri->ri_cols) {
382 1.1 ad stamp_mutex--;
383 1.1 ad return;
384 1.1 ad }
385 1.1 ad #endif
386 1.1 ad
387 1.1 ad /* Recompute stamp? */
388 1.1 ad if (attr != stamp_attr)
389 1.6 ad rasops8_makestamp(ri, attr);
390 1.8 pk
391 1.1 ad rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
392 1.1 ad height = ri->ri_font->fontheight;
393 1.8 pk
394 1.1 ad if (uc == ' ') {
395 1.8 pk while (height--)
396 1.8 pk rp[0] = rp[1] = rp[2] = rp[3] = stamp[0];
397 1.1 ad } else {
398 1.1 ad uc -= ri->ri_font->firstchar;
399 1.1 ad fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
400 1.1 ad fs = ri->ri_font->stride;
401 1.8 pk
402 1.1 ad while (height--) {
403 1.1 ad rp[0] = STAMP_READ(STAMP_SHIFT(fr[0], 1) & STAMP_MASK);
404 1.1 ad rp[1] = STAMP_READ(STAMP_SHIFT(fr[0], 0) & STAMP_MASK);
405 1.1 ad rp[2] = STAMP_READ(STAMP_SHIFT(fr[1], 1) & STAMP_MASK);
406 1.1 ad rp[3] = STAMP_READ(STAMP_SHIFT(fr[1], 0) & STAMP_MASK);
407 1.1 ad
408 1.1 ad fr += fs;
409 1.8 pk DELTA(rp, ri->ri_stride, int32_t *);
410 1.1 ad }
411 1.8 pk }
412 1.1 ad
413 1.1 ad /* Do underline */
414 1.7 ad if ((attr & 1) != 0) {
415 1.8 pk DELTA(rp, -(ri->ri_stride << 1), int32_t *);
416 1.8 pk rp[0] = rp[1] = rp[2] = rp[3] = stamp[15];
417 1.8 pk }
418 1.8 pk
419 1.1 ad stamp_mutex--;
420 1.1 ad }
421 1.7 ad #endif /* !RASOPS_SMALL */
422