1 | /* $NetBSD: rasops2.c,v 1.18 2013/04/21 04:28:05 kiyohara Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 1999 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Andrew Doran. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | #include <sys/cdefs.h> |
33 | __KERNEL_RCSID(0, "$NetBSD: rasops2.c,v 1.18 2013/04/21 04:28:05 kiyohara Exp $" ); |
34 | |
35 | #include "opt_rasops.h" |
36 | |
37 | #include <sys/param.h> |
38 | #include <sys/systm.h> |
39 | #include <sys/time.h> |
40 | #include <machine/endian.h> |
41 | |
42 | #include <dev/wscons/wsdisplayvar.h> |
43 | #include <dev/wscons/wsconsio.h> |
44 | #include <dev/rasops/rasops.h> |
45 | #include <dev/rasops/rasops_masks.h> |
46 | |
47 | static void rasops2_copycols(void *, int, int, int, int); |
48 | static void rasops2_erasecols(void *, int, int, int, long); |
49 | static void rasops2_do_cursor(struct rasops_info *); |
50 | static void rasops2_putchar(void *, int, int col, u_int, long); |
51 | #ifndef RASOPS_SMALL |
52 | static void rasops2_putchar8(void *, int, int col, u_int, long); |
53 | static void rasops2_putchar12(void *, int, int col, u_int, long); |
54 | static void rasops2_putchar16(void *, int, int col, u_int, long); |
55 | static void rasops2_makestamp(struct rasops_info *, long); |
56 | |
57 | /* |
58 | * 4x1 stamp for optimized character blitting |
59 | */ |
60 | static int8_t stamp[16]; |
61 | static long stamp_attr; |
62 | static int stamp_mutex; /* XXX see note in README */ |
63 | #endif |
64 | |
65 | /* |
66 | * Initialize rasops_info struct for this colordepth. |
67 | */ |
68 | void |
69 | rasops2_init(struct rasops_info *ri) |
70 | { |
71 | |
72 | switch (ri->ri_font->fontwidth) { |
73 | #ifndef RASOPS_SMALL |
74 | case 8: |
75 | ri->ri_ops.putchar = rasops2_putchar8; |
76 | break; |
77 | case 12: |
78 | ri->ri_ops.putchar = rasops2_putchar12; |
79 | break; |
80 | case 16: |
81 | ri->ri_ops.putchar = rasops2_putchar16; |
82 | break; |
83 | #endif /* !RASOPS_SMALL */ |
84 | default: |
85 | panic("fontwidth not 8/12/16 or RASOPS_SMALL - fixme!" ); |
86 | ri->ri_ops.putchar = rasops2_putchar; |
87 | break; |
88 | } |
89 | |
90 | if ((ri->ri_font->fontwidth & 3) != 0) { |
91 | ri->ri_ops.erasecols = rasops2_erasecols; |
92 | ri->ri_ops.copycols = rasops2_copycols; |
93 | ri->ri_do_cursor = rasops2_do_cursor; |
94 | } |
95 | } |
96 | |
97 | #ifdef notyet |
98 | /* |
99 | * Paint a single character. This is the generic version, this is ugly. |
100 | */ |
101 | static void |
102 | rasops2_putchar(void *cookie, int row, int col, u_int uc, long attr) |
103 | { |
104 | int height, width, fs, rs, fb, bg, fg, lmask, rmask; |
105 | struct rasops_info *ri = (struct rasops_info *)cookie; |
106 | struct wsdisplay_font *font = PICK_FONT(ri, uc); |
107 | int32_t *rp; |
108 | u_char *fr; |
109 | |
110 | #ifdef RASOPS_CLIPPING |
111 | /* Catches 'row < 0' case too */ |
112 | if ((unsigned)row >= (unsigned)ri->ri_rows) |
113 | return; |
114 | |
115 | if ((unsigned)col >= (unsigned)ri->ri_cols) |
116 | return; |
117 | #endif |
118 | |
119 | width = font->fontwidth << 1; |
120 | height = font->fontheight; |
121 | col *= width; |
122 | rp = (int32_t *)(ri->ri_bits + row * ri->ri_yscale + ((col >> 3) & ~3)); |
123 | col = col & 31; |
124 | rs = ri->ri_stride; |
125 | |
126 | bg = ri->ri_devcmap[(attr >> 16) & 0xf]; |
127 | fg = ri->ri_devcmap[(attr >> 24) & 0xf]; |
128 | |
129 | /* If fg and bg match this becomes a space character */ |
130 | if (fg == bg || uc == ' ') { |
131 | uc = (u_int)-1; |
132 | fr = 0; /* shutup gcc */ |
133 | fs = 0; /* shutup gcc */ |
134 | } else { |
135 | uc -= font->firstchar; |
136 | fr = (u_char *)font->data + uc * ri->ri_fontscale; |
137 | fs = font->stride; |
138 | } |
139 | |
140 | /* Single word, one mask */ |
141 | if ((col + width) <= 32) { |
142 | rmask = rasops_pmask[col][width]; |
143 | lmask = ~rmask; |
144 | |
145 | if (uc == (u_int)-1) { |
146 | bg &= rmask; |
147 | |
148 | while (height--) { |
149 | *rp = (*rp & lmask) | bg; |
150 | DELTA(rp, rs, int32_t *); |
151 | } |
152 | } else { |
153 | while (height--) { |
154 | /* get bits, mask */ |
155 | /* compose sl */ |
156 | /* mask sl */ |
157 | /* put word */ |
158 | } |
159 | } |
160 | |
161 | /* Do underline */ |
162 | if (attr & 1) { |
163 | DELTA(rp, -(ri->ri_stride << 1), int32_t *); |
164 | *rp = (*rp & lmask) | (fg & rmask); |
165 | } |
166 | } else { |
167 | lmask = ~rasops_lmask[col]; |
168 | rmask = ~rasops_rmask[(col + width) & 31]; |
169 | |
170 | if (uc == (u_int)-1) { |
171 | bg = bg & ~lmask; |
172 | width = bg & ~rmask; |
173 | |
174 | while (height--) { |
175 | rp[0] = (rp[0] & lmask) | bg; |
176 | rp[1] = (rp[1] & rmask) | width; |
177 | DELTA(rp, rs, int32_t *); |
178 | } |
179 | } else { |
180 | width = 32 - col; |
181 | |
182 | /* NOT fontbits if bg is white */ |
183 | while (height--) { |
184 | fb = ~(fr[3] | (fr[2] << 8) | |
185 | (fr[1] << 16) | (fr[0] << 24)); |
186 | |
187 | rp[0] = (rp[0] & lmask) |
188 | | MBE((u_int)fb >> col); |
189 | |
190 | rp[1] = (rp[1] & rmask) |
191 | | (MBE((u_int)fb << width) & ~rmask); |
192 | |
193 | fr += fs; |
194 | DELTA(rp, rs, int32_t *); |
195 | } |
196 | } |
197 | |
198 | /* Do underline */ |
199 | if (attr & 1) { |
200 | DELTA(rp, -(ri->ri_stride << 1), int32_t *); |
201 | rp[0] = (rp[0] & lmask) | (fg & ~lmask); |
202 | rp[1] = (rp[1] & rmask) | (fg & ~rmask); |
203 | } |
204 | } |
205 | } |
206 | #endif |
207 | |
208 | /* |
209 | * Put a single character. This is the generic version. |
210 | */ |
211 | static void |
212 | rasops2_putchar(void *cookie, int row, int col, u_int uc, long attr) |
213 | { |
214 | |
215 | /* XXX punt */ |
216 | } |
217 | |
218 | #ifndef RASOPS_SMALL |
219 | /* |
220 | * Recompute the blitting stamp. |
221 | */ |
222 | static void |
223 | rasops2_makestamp(struct rasops_info *ri, long attr) |
224 | { |
225 | int i, fg, bg; |
226 | |
227 | fg = ri->ri_devcmap[(attr >> 24) & 0xf] & 3; |
228 | bg = ri->ri_devcmap[(attr >> 16) & 0xf] & 3; |
229 | stamp_attr = attr; |
230 | |
231 | for (i = 0; i < 16; i++) { |
232 | #if BYTE_ORDER == BIG_ENDIAN |
233 | #define NEED_LITTLE_ENDIAN_STAMP RI_BSWAP |
234 | #else |
235 | #define NEED_LITTLE_ENDIAN_STAMP 0 |
236 | #endif |
237 | if ((ri->ri_flg & RI_BSWAP) == NEED_LITTLE_ENDIAN_STAMP) { |
238 | /* littel endian */ |
239 | stamp[i] = (i & 8 ? fg : bg); |
240 | stamp[i] |= (i & 4 ? fg : bg) << 2; |
241 | stamp[i] |= (i & 2 ? fg : bg) << 4; |
242 | stamp[i] |= (i & 1 ? fg : bg) << 6; |
243 | } else { |
244 | /* big endian */ |
245 | stamp[i] = (i & 1 ? fg : bg); |
246 | stamp[i] |= (i & 2 ? fg : bg) << 2; |
247 | stamp[i] |= (i & 4 ? fg : bg) << 4; |
248 | stamp[i] |= (i & 8 ? fg : bg) << 6; |
249 | } |
250 | } |
251 | } |
252 | |
253 | /* |
254 | * Put a single character. This is for 8-pixel wide fonts. |
255 | */ |
256 | static void |
257 | rasops2_putchar8(void *cookie, int row, int col, u_int uc, long attr) |
258 | { |
259 | struct rasops_info *ri = (struct rasops_info *)cookie; |
260 | struct wsdisplay_font *font = PICK_FONT(ri, uc); |
261 | int height, fs, rs; |
262 | u_char *fr, *rp; |
263 | |
264 | /* Can't risk remaking the stamp if it's already in use */ |
265 | if (stamp_mutex++) { |
266 | stamp_mutex--; |
267 | rasops2_putchar(cookie, row, col, uc, attr); |
268 | return; |
269 | } |
270 | |
271 | #ifdef RASOPS_CLIPPING |
272 | /* Catches 'row < 0' case too */ |
273 | if ((unsigned)row >= (unsigned)ri->ri_rows) { |
274 | stamp_mutex--; |
275 | return; |
276 | } |
277 | |
278 | if ((unsigned)col >= (unsigned)ri->ri_cols) { |
279 | stamp_mutex--; |
280 | return; |
281 | } |
282 | #endif |
283 | |
284 | rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; |
285 | height = font->fontheight; |
286 | rs = ri->ri_stride; |
287 | |
288 | /* Recompute stamp? */ |
289 | if (attr != stamp_attr) |
290 | rasops2_makestamp(ri, attr); |
291 | |
292 | if (uc == ' ') { |
293 | int8_t c = stamp[0]; |
294 | while (height--) { |
295 | *(int16_t *)rp = c; |
296 | rp += rs; |
297 | } |
298 | } else { |
299 | uc -= font->firstchar; |
300 | fr = (u_char *)font->data + uc * ri->ri_fontscale; |
301 | fs = font->stride; |
302 | |
303 | while (height--) { |
304 | rp[0] = stamp[(*fr >> 4) & 0xf]; |
305 | rp[1] = stamp[*fr & 0xf]; |
306 | fr += fs; |
307 | rp += rs; |
308 | } |
309 | } |
310 | |
311 | /* Do underline */ |
312 | if ((attr & 1) != 0) |
313 | *(int16_t *)(rp - (ri->ri_stride << 1)) = stamp[15]; |
314 | |
315 | stamp_mutex--; |
316 | } |
317 | |
318 | /* |
319 | * Put a single character. This is for 12-pixel wide fonts. |
320 | */ |
321 | static void |
322 | rasops2_putchar12(void *cookie, int row, int col, u_int uc, long attr) |
323 | { |
324 | struct rasops_info *ri = (struct rasops_info *)cookie; |
325 | struct wsdisplay_font *font = PICK_FONT(ri, uc); |
326 | int height, fs, rs; |
327 | u_char *fr, *rp; |
328 | |
329 | /* Can't risk remaking the stamp if it's already in use */ |
330 | if (stamp_mutex++) { |
331 | stamp_mutex--; |
332 | rasops2_putchar(cookie, row, col, uc, attr); |
333 | return; |
334 | } |
335 | |
336 | #ifdef RASOPS_CLIPPING |
337 | /* Catches 'row < 0' case too */ |
338 | if ((unsigned)row >= (unsigned)ri->ri_rows) { |
339 | stamp_mutex--; |
340 | return; |
341 | } |
342 | |
343 | if ((unsigned)col >= (unsigned)ri->ri_cols) { |
344 | stamp_mutex--; |
345 | return; |
346 | } |
347 | #endif |
348 | |
349 | rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; |
350 | height = font->fontheight; |
351 | rs = ri->ri_stride; |
352 | |
353 | /* Recompute stamp? */ |
354 | if (attr != stamp_attr) |
355 | rasops2_makestamp(ri, attr); |
356 | |
357 | if (uc == ' ') { |
358 | int8_t c = stamp[0]; |
359 | while (height--) { |
360 | rp[0] = rp[1] = rp[2] = c; |
361 | rp += rs; |
362 | } |
363 | } else { |
364 | uc -= font->firstchar; |
365 | fr = (u_char *)font->data + uc * ri->ri_fontscale; |
366 | fs = font->stride; |
367 | |
368 | while (height--) { |
369 | rp[0] = stamp[(fr[0] >> 4) & 0xf]; |
370 | rp[1] = stamp[fr[0] & 0xf]; |
371 | rp[2] = stamp[(fr[1] >> 4) & 0xf]; |
372 | fr += fs; |
373 | rp += rs; |
374 | } |
375 | } |
376 | |
377 | /* Do underline */ |
378 | if ((attr & 1) != 0) { |
379 | rp -= ri->ri_stride << 1; |
380 | rp[0] = rp[1] = rp[2] = stamp[15]; |
381 | } |
382 | |
383 | stamp_mutex--; |
384 | } |
385 | |
386 | /* |
387 | * Put a single character. This is for 16-pixel wide fonts. |
388 | */ |
389 | static void |
390 | rasops2_putchar16(void *cookie, int row, int col, u_int uc, long attr) |
391 | { |
392 | struct rasops_info *ri = (struct rasops_info *)cookie; |
393 | struct wsdisplay_font *font = PICK_FONT(ri, uc); |
394 | int height, fs, rs; |
395 | u_char *fr, *rp; |
396 | |
397 | /* Can't risk remaking the stamp if it's already in use */ |
398 | if (stamp_mutex++) { |
399 | stamp_mutex--; |
400 | rasops2_putchar(cookie, row, col, uc, attr); |
401 | return; |
402 | } |
403 | |
404 | #ifdef RASOPS_CLIPPING |
405 | /* Catches 'row < 0' case too */ |
406 | if ((unsigned)row >= (unsigned)ri->ri_rows) { |
407 | stamp_mutex--; |
408 | return; |
409 | } |
410 | |
411 | if ((unsigned)col >= (unsigned)ri->ri_cols) { |
412 | stamp_mutex--; |
413 | return; |
414 | } |
415 | #endif |
416 | |
417 | rp = ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale; |
418 | height = font->fontheight; |
419 | rs = ri->ri_stride; |
420 | |
421 | /* Recompute stamp? */ |
422 | if (attr != stamp_attr) |
423 | rasops2_makestamp(ri, attr); |
424 | |
425 | if (uc == ' ') { |
426 | int8_t c = stamp[0]; |
427 | while (height--) { |
428 | *(int32_t *)rp = c; |
429 | rp += rs; |
430 | } |
431 | } else { |
432 | uc -= font->firstchar; |
433 | fr = (u_char *)font->data + uc * ri->ri_fontscale; |
434 | fs = font->stride; |
435 | |
436 | while (height--) { |
437 | rp[0] = stamp[(fr[0] >> 4) & 0xf]; |
438 | rp[1] = stamp[fr[0] & 0xf]; |
439 | rp[2] = stamp[(fr[1] >> 4) & 0xf]; |
440 | rp[3] = stamp[fr[1] & 0xf]; |
441 | fr += fs; |
442 | rp += rs; |
443 | } |
444 | } |
445 | |
446 | /* Do underline */ |
447 | if ((attr & 1) != 0) |
448 | *(int32_t *)(rp - (ri->ri_stride << 1)) = stamp[15]; |
449 | |
450 | stamp_mutex--; |
451 | } |
452 | #endif /* !RASOPS_SMALL */ |
453 | |
454 | /* |
455 | * Grab routines common to depths where (bpp < 8) |
456 | */ |
457 | #define NAME(ident) rasops2_##ident |
458 | #define PIXEL_SHIFT 1 |
459 | |
460 | #include <dev/rasops/rasops_bitops.h> |
461 | |