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1.1 nbrk 1: /* $OpenBSD: rasops4.c,v 1.7 2006/08/03 18:42:06 miod Exp $ */
2: /* $NetBSD: rasops4.c,v 1.4 2001/11/15 09:48:15 lukem Exp $ */
3:
4: /*-
5: * Copyright (c) 1999 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Andrew Doran.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the NetBSD
22: * Foundation, Inc. and its contributors.
23: * 4. Neither the name of The NetBSD Foundation nor the names of its
24: * contributors may be used to endorse or promote products derived
25: * from this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: */
39:
40: #include <sys/param.h>
41: #include <sys/systm.h>
42: #include <sys/time.h>
43: #include <machine/endian.h>
44:
45: #include <dev/wscons/wsdisplayvar.h>
46: #include <dev/wscons/wsconsio.h>
47: #include <dev/rasops/rasops.h>
48: #include <dev/rasops/rasops_masks.h>
49:
50: void rasops4_copycols(void *, int, int, int, int);
51: void rasops4_erasecols(void *, int, int, int, long);
52: void rasops4_do_cursor(struct rasops_info *);
53: void rasops4_putchar(void *, int, int col, u_int, long);
54: #ifndef RASOPS_SMALL
55: void rasops4_putchar8(void *, int, int col, u_int, long);
56: void rasops4_putchar12(void *, int, int col, u_int, long);
57: void rasops4_putchar16(void *, int, int col, u_int, long);
58: void rasops4_makestamp(struct rasops_info *, long);
59:
60: /*
61: * 4x1 stamp for optimized character blitting
62: */
63: static u_int16_t stamp[16];
64: static long stamp_attr;
65: static int stamp_mutex; /* XXX see note in README */
66: #endif
67:
68: /*
69: * Initialize rasops_info struct for this colordepth.
70: */
71: void
72: rasops4_init(ri)
73: struct rasops_info *ri;
74: {
75: rasops_masks_init();
76:
77: switch (ri->ri_font->fontwidth) {
78: #ifndef RASOPS_SMALL
79: case 8:
80: ri->ri_ops.putchar = rasops4_putchar8;
81: break;
82: case 12:
83: ri->ri_ops.putchar = rasops4_putchar12;
84: break;
85: case 16:
86: ri->ri_ops.putchar = rasops4_putchar16;
87: break;
88: #endif /* !RASOPS_SMALL */
89: default:
90: panic("fontwidth not 8/12/16 or RASOPS_SMALL - fixme!");
91: ri->ri_ops.putchar = rasops4_putchar;
92: break;
93: }
94:
95: if ((ri->ri_font->fontwidth & 1) != 0) {
96: ri->ri_ops.erasecols = rasops4_erasecols;
97: ri->ri_ops.copycols = rasops4_copycols;
98: ri->ri_do_cursor = rasops4_do_cursor;
99: }
100: }
101:
102: #ifdef notyet
103: /*
104: * Paint a single character. This is the generic version, this is ugly.
105: */
106: void
107: rasops4_putchar(cookie, row, col, uc, attr)
108: void *cookie;
109: int row, col;
110: u_int uc;
111: long attr;
112: {
113: int height, width, fs, rs, fb, bg, fg, lmask, rmask;
114: struct rasops_info *ri;
115: int32_t *rp;
116: u_char *fr;
117:
118: ri = (struct rasops_info *)cookie;
119:
120: #ifdef RASOPS_CLIPPING
121: /* Catches 'row < 0' case too */
122: if ((unsigned)row >= (unsigned)ri->ri_rows)
123: return;
124:
125: if ((unsigned)col >= (unsigned)ri->ri_cols)
126: return;
127: #endif
128:
129: width = ri->ri_font->fontwidth << 1;
130: height = ri->ri_font->fontheight;
131: col *= width;
132: rp = (int32_t *)(ri->ri_bits + row * ri->ri_yscale + ((col >> 3) & ~3));
133: col = col & 31;
134: rs = ri->ri_stride;
135:
136: bg = ri->ri_devcmap[(attr >> 16) & 0xf];
137: fg = ri->ri_devcmap[(attr >> 24) & 0xf];
138:
139: /* If fg and bg match this becomes a space character */
140: if (fg == bg || uc == ' ') {
141: uc = (u_int)-1;
142: fr = 0; /* shutup gcc */
143: fs = 0; /* shutup gcc */
144: } else {
145: uc -= ri->ri_font->firstchar;
146: fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
147: fs = ri->ri_font->stride;
148: }
149:
150: /* Single word, one mask */
151: if ((col + width) <= 32) {
152: rmask = rasops_pmask[col][width];
153: lmask = ~rmask;
154:
155: if (uc == (u_int)-1) {
156: bg &= rmask;
157:
158: while (height--) {
159: *rp = (*rp & lmask) | bg;
160: DELTA(rp, rs, int32_t *);
161: }
162: } else {
163: while (height--) {
164: /* get bits, mask */
165: /* compose sl */
166: /* mask sl */
167: /* put word */
168: }
169: }
170:
171: /* Do underline */
172: if (attr & 1) {
173: DELTA(rp, -(ri->ri_stride << 1), int32_t *);
174: *rp = (*rp & lmask) | (fg & rmask);
175: }
176: } else {
177: lmask = ~rasops_lmask[col];
178: rmask = ~rasops_rmask[(col + width) & 31];
179:
180: if (uc == (u_int)-1) {
181: bg = bg & ~lmask;
182: width = bg & ~rmask;
183:
184: while (height--) {
185: rp[0] = (rp[0] & lmask) | bg;
186: rp[1] = (rp[1] & rmask) | width;
187: DELTA(rp, rs, int32_t *);
188: }
189: } else {
190: width = 32 - col;
191:
192: /* NOT fontbits if bg is white */
193: while (height--) {
194: fb = ~(fr[3] | (fr[2] << 8) |
195: (fr[1] << 16) | (fr[0] << 24));
196:
197: rp[0] = (rp[0] & lmask)
198: | MBE((u_int)fb >> col);
199:
200: rp[1] = (rp[1] & rmask)
201: | (MBE((u_int)fb << width) & ~rmask);
202:
203: fr += fs;
204: DELTA(rp, rs, int32_t *);
205: }
206: }
207:
208: /* Do underline */
209: if (attr & 1) {
210: DELTA(rp, -(ri->ri_stride << 1), int32_t *);
211: rp[0] = (rp[0] & lmask) | (fg & ~lmask);
212: rp[1] = (rp[1] & rmask) | (fg & ~rmask);
213: }
214: }
215: }
216: #endif
217:
218: /*
219: * Put a single character. This is the generic version.
220: */
221: void
222: rasops4_putchar(cookie, row, col, uc, attr)
223: void *cookie;
224: int row, col;
225: u_int uc;
226: long attr;
227: {
228:
229: /* XXX punt */
230: }
231:
232: #ifndef RASOPS_SMALL
233: /*
234: * Recompute the blitting stamp.
235: */
236: void
237: rasops4_makestamp(ri, attr)
238: struct rasops_info *ri;
239: long attr;
240: {
241: int i, fg, bg;
242:
243: fg = ri->ri_devcmap[(attr >> 24) & 0xf] & 0xf;
244: bg = ri->ri_devcmap[(attr >> 16) & 0xf] & 0xf;
245: stamp_attr = attr;
246:
247: for (i = 0; i < 16; i++) {
248: #if BYTE_ORDER == LITTLE_ENDIAN
249: stamp[i] = (i & 1 ? fg : bg) << 8;
250: stamp[i] |= (i & 2 ? fg : bg) << 12;
251: stamp[i] |= (i & 4 ? fg : bg) << 0;
252: stamp[i] |= (i & 8 ? fg : bg) << 4;
253: #else
254: stamp[i] = (i & 1 ? fg : bg) << 0;
255: stamp[i] |= (i & 2 ? fg : bg) << 4;
256: stamp[i] |= (i & 4 ? fg : bg) << 8;
257: stamp[i] |= (i & 8 ? fg : bg) << 12;
258: #endif
259: }
260: }
261:
262: /*
263: * Put a single character. This is for 8-pixel wide fonts.
264: */
265: void
266: rasops4_putchar8(cookie, row, col, uc, attr)
267: void *cookie;
268: int row, col;
269: u_int uc;
270: long attr;
271: {
272: struct rasops_info *ri;
273: int height, fs, rs;
274: u_char *fr;
275: u_int16_t *rp;
276:
277: /* Can't risk remaking the stamp if it's already in use */
278: if (stamp_mutex++) {
279: stamp_mutex--;
280: rasops4_putchar(cookie, row, col, uc, attr);
281: return;
282: }
283:
284: ri = (struct rasops_info *)cookie;
285:
286: #ifdef RASOPS_CLIPPING
287: /* Catches 'row < 0' case too */
288: if ((unsigned)row >= (unsigned)ri->ri_rows) {
289: stamp_mutex--;
290: return;
291: }
292:
293: if ((unsigned)col >= (unsigned)ri->ri_cols) {
294: stamp_mutex--;
295: return;
296: }
297: #endif
298:
299: rp = (u_int16_t *)(ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale);
300: height = ri->ri_font->fontheight;
301: rs = ri->ri_stride / sizeof(*rp);
302:
303: /* Recompute stamp? */
304: if (attr != stamp_attr)
305: rasops4_makestamp(ri, attr);
306:
307: if (uc == ' ') {
308: u_int16_t c = stamp[0];
309: while (height--) {
310: rp[0] = c;
311: rp[1] = c;
312: rp += rs;
313: }
314: } else {
315: uc -= ri->ri_font->firstchar;
316: fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
317: fs = ri->ri_font->stride;
318:
319: while (height--) {
320: rp[0] = stamp[(*fr >> 4) & 0xf];
321: rp[1] = stamp[*fr & 0xf];
322: fr += fs;
323: rp += rs;
324: }
325: }
326:
327: /* Do underline */
328: if ((attr & 1) != 0) {
329: rp -= (rs << 1);
330: rp[0] = stamp[15];
331: rp[1] = stamp[15];
332: }
333:
334: stamp_mutex--;
335: }
336:
337: /*
338: * Put a single character. This is for 12-pixel wide fonts.
339: */
340: void
341: rasops4_putchar12(cookie, row, col, uc, attr)
342: void *cookie;
343: int row, col;
344: u_int uc;
345: long attr;
346: {
347: struct rasops_info *ri;
348: int height, fs, rs;
349: u_char *fr;
350: u_int16_t *rp;
351:
352: /* Can't risk remaking the stamp if it's already in use */
353: if (stamp_mutex++) {
354: stamp_mutex--;
355: rasops4_putchar(cookie, row, col, uc, attr);
356: return;
357: }
358:
359: ri = (struct rasops_info *)cookie;
360:
361: #ifdef RASOPS_CLIPPING
362: /* Catches 'row < 0' case too */
363: if ((unsigned)row >= (unsigned)ri->ri_rows) {
364: stamp_mutex--;
365: return;
366: }
367:
368: if ((unsigned)col >= (unsigned)ri->ri_cols) {
369: stamp_mutex--;
370: return;
371: }
372: #endif
373:
374: rp = (u_int16_t *)(ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale);
375: height = ri->ri_font->fontheight;
376: rs = ri->ri_stride / sizeof(*rp);
377:
378: /* Recompute stamp? */
379: if (attr != stamp_attr)
380: rasops4_makestamp(ri, attr);
381:
382: if (uc == ' ') {
383: u_int16_t c = stamp[0];
384: while (height--) {
385: rp[0] = c;
386: rp[1] = c;
387: rp[2] = c;
388: rp += rs;
389: }
390: } else {
391: uc -= ri->ri_font->firstchar;
392: fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
393: fs = ri->ri_font->stride;
394:
395: while (height--) {
396: rp[0] = stamp[(fr[0] >> 4) & 0xf];
397: rp[1] = stamp[fr[0] & 0xf];
398: rp[2] = stamp[(fr[1] >> 4) & 0xf];
399: fr += fs;
400: rp += rs;
401: }
402: }
403:
404: /* Do underline */
405: if ((attr & 1) != 0) {
406: rp -= (rs << 1);
407: rp[0] = stamp[15];
408: rp[1] = stamp[15];
409: rp[2] = stamp[15];
410: }
411:
412: stamp_mutex--;
413: }
414:
415: /*
416: * Put a single character. This is for 16-pixel wide fonts.
417: */
418: void
419: rasops4_putchar16(cookie, row, col, uc, attr)
420: void *cookie;
421: int row, col;
422: u_int uc;
423: long attr;
424: {
425: struct rasops_info *ri;
426: int height, fs, rs;
427: u_char *fr;
428: u_int16_t *rp;
429:
430: /* Can't risk remaking the stamp if it's already in use */
431: if (stamp_mutex++) {
432: stamp_mutex--;
433: rasops4_putchar(cookie, row, col, uc, attr);
434: return;
435: }
436:
437: ri = (struct rasops_info *)cookie;
438:
439: #ifdef RASOPS_CLIPPING
440: /* Catches 'row < 0' case too */
441: if ((unsigned)row >= (unsigned)ri->ri_rows) {
442: stamp_mutex--;
443: return;
444: }
445:
446: if ((unsigned)col >= (unsigned)ri->ri_cols) {
447: stamp_mutex--;
448: return;
449: }
450: #endif
451:
452: rp = (u_int16_t *)(ri->ri_bits + row * ri->ri_yscale + col * ri->ri_xscale);
453: height = ri->ri_font->fontheight;
454: rs = ri->ri_stride / sizeof(*rp);
455:
456: /* Recompute stamp? */
457: if (attr != stamp_attr)
458: rasops4_makestamp(ri, attr);
459:
460: if (uc == ' ') {
461: u_int16_t c = stamp[0];
462: while (height--) {
463: rp[0] = c;
464: rp[1] = c;
465: rp[2] = c;
466: rp[3] = c;
467: rp += rs;
468: }
469: } else {
470: uc -= ri->ri_font->firstchar;
471: fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
472: fs = ri->ri_font->stride;
473:
474: while (height--) {
475: rp[0] = stamp[(fr[0] >> 4) & 0xf];
476: rp[1] = stamp[fr[0] & 0xf];
477: rp[2] = stamp[(fr[1] >> 4) & 0xf];
478: rp[3] = stamp[fr[1] & 0xf];
479: fr += fs;
480: rp += rs;
481: }
482: }
483:
484: /* Do underline */
485: if ((attr & 1) != 0) {
486: rp -= (rs << 1);
487: rp[0] = stamp[15];
488: rp[1] = stamp[15];
489: rp[2] = stamp[15];
490: rp[3] = stamp[15];
491: }
492:
493: stamp_mutex--;
494: }
495: #endif /* !RASOPS_SMALL */
496:
497: /*
498: * Grab routines common to depths where (bpp < 8)
499: */
500: #define NAME(ident) rasops4_##ident
501: #define PIXEL_SHIFT 2
502:
503: #include <dev/rasops/rasops_bitops.h>