1 /* $OpenBSD: omrasops1.c,v 1.4 2021/07/31 05:22:36 aoyama Exp $ */
2
3 /*
4 * Copyright (c) 2005, Miodrag Vallat.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 */
29 /*
30 * Copyright (c) 1996 Jason R. Thorpe. All rights reserved.
31 * Copyright (c) 1991 University of Utah.
32 * Copyright (c) 1990, 1993
33 * The Regents of the University of California. All rights reserved.
34 *
35 * This code is derived from software contributed to Berkeley by
36 * the Systems Programming Group of the University of Utah Computer
37 * Science Department and Mark Davies of the Department of Computer
38 * Science, Victoria University of Wellington, New Zealand.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 * 1. Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * 2. Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in the
47 * documentation and/or other materials provided with the distribution.
48 * 3. Neither the name of the University nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * SUCH DAMAGE.
63 *
64 * from: Utah $Hdr: grf_hy.c 1.2 93/08/13$
65 *
66 * @(#)grf_hy.c 8.4 (Berkeley) 1/12/94
67 */
68
69 /*
70 * Graphics routines for OMRON LUNA 1bpp and 4bpp frame buffer.
71 * On LUNA's frame buffer, pixels are not byte-addressed.
72 *
73 * Based on src/sys/arch/hp300/dev/diofb_mono.c
74 */
75
76 #include <sys/param.h>
77 #include <sys/systm.h>
78
79 #include <dev/wscons/wsconsio.h>
80 #include <dev/wscons/wsdisplayvar.h>
81 #include <dev/rasops/rasops.h>
82 #include <dev/rasops/rasops_masks.h>
83
84 #include <luna88k/dev/maskbits.h>
85 #include <luna88k/dev/omrasops.h>
86
87 #include <machine/board.h>
88 #define OMFB_FB_WADDR (BMAP_BMP + 8) /* common plane */
89
90 /* prototypes */
91 int om1_windowmove(struct rasops_info *, u_int16_t, u_int16_t,
92 u_int16_t, u_int16_t, u_int16_t, u_int16_t, int16_t,
93 int16_t /* ignored */);
94 int om4_windowmove(struct rasops_info *, u_int16_t, u_int16_t,
95 u_int16_t, u_int16_t, u_int16_t, u_int16_t, int16_t,
96 int16_t /* ignored */);
97
98 /*
99 * Block-move function - 1bpp version
100 */
101 int
om1_windowmove(struct rasops_info * ri,u_int16_t sx,u_int16_t sy,u_int16_t dx,u_int16_t dy,u_int16_t cx,u_int16_t cy,int16_t rop,int16_t planemask)102 om1_windowmove(struct rasops_info *ri, u_int16_t sx, u_int16_t sy,
103 u_int16_t dx, u_int16_t dy, u_int16_t cx, u_int16_t cy, int16_t rop,
104 int16_t planemask /* ignored */)
105 {
106 int width; /* add to get to same position in next line */
107
108 u_int32_t *psrcLine, *pdstLine;
109 /* pointers to line with current src and dst */
110 u_int32_t *psrc; /* pointer to current src longword */
111 u_int32_t *pdst; /* pointer to current dst longword */
112
113 /* following used for looping through a line */
114 u_int32_t startmask, endmask; /* masks for writing ends of dst */
115 int nlMiddle; /* whole longwords in dst */
116 int nl; /* temp copy of nlMiddle */
117 int xoffSrc; /* offset (>= 0, < 32) from which to
118 fetch whole longwords fetched in src */
119 int nstart; /* number of ragged bits at start of dst */
120 int nend; /* number of ragged bits at end of dst */
121 int srcStartOver; /* pulling nstart bits from src
122 overflows into the next word? */
123
124 width = ri->ri_stride / 4; /* convert to number in longword */
125
126 if (sy < dy) { /* start at last scanline of rectangle */
127 psrcLine = ((u_int32_t *)OMFB_FB_WADDR)
128 + ((sy + cy - 1) * width);
129 pdstLine = ((u_int32_t *)OMFB_FB_WADDR)
130 + ((dy + cy - 1) * width);
131 width = -width;
132 } else { /* start at first scanline */
133 psrcLine = ((u_int32_t *)OMFB_FB_WADDR) + (sy * width);
134 pdstLine = ((u_int32_t *)OMFB_FB_WADDR) + (dy * width);
135 }
136
137 /* x direction doesn't matter for < 1 longword */
138 if (cx <= 32) {
139 int srcBit, dstBit; /* bit offset of src and dst */
140
141 pdstLine += (dx >> 5);
142 psrcLine += (sx >> 5);
143 psrc = psrcLine;
144 pdst = pdstLine;
145
146 srcBit = sx & 0x1f;
147 dstBit = dx & 0x1f;
148
149 while (cy--) {
150 getandputrop(P0(psrc), srcBit, dstBit, cx, P0(pdst), rop);
151 pdst += width;
152 psrc += width;
153 }
154 } else {
155 maskbits(dx, cx, startmask, endmask, nlMiddle);
156 if (startmask)
157 nstart = 32 - (dx & 0x1f);
158 else
159 nstart = 0;
160 if (endmask)
161 nend = (dx + cx) & 0x1f;
162 else
163 nend = 0;
164
165 xoffSrc = ((sx & 0x1f) + nstart) & 0x1f;
166 srcStartOver = ((sx & 0x1f) + nstart) > 31;
167
168 if (sx >= dx) { /* move left to right */
169 pdstLine += (dx >> 5);
170 psrcLine += (sx >> 5);
171
172 while (cy--) {
173 psrc = psrcLine;
174 pdst = pdstLine;
175
176 if (startmask) {
177 getandputrop(P0(psrc), (sx & 0x1f),
178 (dx & 0x1f), nstart, P0(pdst), rop);
179 pdst++;
180 if (srcStartOver)
181 psrc++;
182 }
183
184 /* special case for aligned operations */
185 if (xoffSrc == 0) {
186 nl = nlMiddle;
187 while (nl--) {
188 if (rop == RR_CLEAR)
189 *P0(pdst) = 0;
190 else
191 *P0(pdst) = *P0(psrc);
192 psrc++;
193 pdst++;
194 }
195 } else {
196 nl = nlMiddle + 1;
197 while (--nl) {
198 if (rop == RR_CLEAR)
199 *P0(pdst) = 0;
200 else
201 getunalignedword(P0(psrc),
202 xoffSrc, *P0(pdst));
203 pdst++;
204 psrc++;
205 }
206 }
207
208 if (endmask) {
209 getandputrop(P0(psrc), xoffSrc, 0, nend,
210 P0(pdst), rop);
211 }
212
213 pdstLine += width;
214 psrcLine += width;
215 }
216 } else { /* move right to left */
217 pdstLine += ((dx + cx) >> 5);
218 psrcLine += ((sx + cx) >> 5);
219 /*
220 * If fetch of last partial bits from source crosses
221 * a longword boundary, start at the previous longword
222 */
223 if (xoffSrc + nend >= 32)
224 --psrcLine;
225
226 while (cy--) {
227 psrc = psrcLine;
228 pdst = pdstLine;
229
230 if (endmask) {
231 getandputrop(P0(psrc), xoffSrc, 0, nend,
232 P0(pdst), rop);
233 }
234
235 nl = nlMiddle + 1;
236 while (--nl) {
237 --psrc;
238 --pdst;
239 if (rop == RR_CLEAR)
240 *P0(pdst) = 0;
241 else
242 getunalignedword(P0(psrc), xoffSrc,
243 *P0(pdst));
244 }
245
246 if (startmask) {
247 if (srcStartOver)
248 --psrc;
249 --pdst;
250 getandputrop(P0(psrc), (sx & 0x1f),
251 (dx & 0x1f), nstart, P0(pdst), rop);
252 }
253
254 pdstLine += width;
255 psrcLine += width;
256 }
257 }
258 }
259
260 return (0);
261 }
262
263 /*
264 * Block-move function - 4bpp version
265 */
266 int
om4_windowmove(struct rasops_info * ri,u_int16_t sx,u_int16_t sy,u_int16_t dx,u_int16_t dy,u_int16_t cx,u_int16_t cy,int16_t rop,int16_t planemask)267 om4_windowmove(struct rasops_info *ri, u_int16_t sx, u_int16_t sy,
268 u_int16_t dx, u_int16_t dy, u_int16_t cx, u_int16_t cy, int16_t rop,
269 int16_t planemask /* ignored */)
270 {
271 int width; /* add to get to same position in next line */
272
273 u_int32_t *psrcLine, *pdstLine;
274 /* pointers to line with current src and dst */
275 u_int32_t *psrc; /* pointer to current src longword */
276 u_int32_t *pdst; /* pointer to current dst longword */
277
278 /* following used for looping through a line */
279 u_int32_t startmask, endmask; /* masks for writing ends of dst */
280 int nlMiddle; /* whole longwords in dst */
281 int nl; /* temp copy of nlMiddle */
282 int xoffSrc; /* offset (>= 0, < 32) from which to
283 fetch whole longwords fetched in src */
284 int nstart; /* number of ragged bits at start of dst */
285 int nend; /* number of ragged bits at end of dst */
286 int srcStartOver; /* pulling nstart bits from src
287 overflows into the next word? */
288
289 width = ri->ri_stride / 4; /* convert to number in longword */
290
291 if (sy < dy) { /* start at last scanline of rectangle */
292 psrcLine = ((u_int32_t *)OMFB_FB_WADDR)
293 + ((sy + cy - 1) * width);
294 pdstLine = ((u_int32_t *)OMFB_FB_WADDR)
295 + ((dy + cy - 1) * width);
296 width = -width;
297 } else { /* start at first scanline */
298 psrcLine = ((u_int32_t *)OMFB_FB_WADDR) + (sy * width);
299 pdstLine = ((u_int32_t *)OMFB_FB_WADDR) + (dy * width);
300 }
301
302 /* x direction doesn't matter for < 1 longword */
303 if (cx <= 32) {
304 int srcBit, dstBit; /* bit offset of src and dst */
305
306 pdstLine += (dx >> 5);
307 psrcLine += (sx >> 5);
308 psrc = psrcLine;
309 pdst = pdstLine;
310
311 srcBit = sx & 0x1f;
312 dstBit = dx & 0x1f;
313
314 while (cy--) {
315 getandputrop(P0(psrc), srcBit, dstBit, cx, P0(pdst), rop);
316 getandputrop(P1(psrc), srcBit, dstBit, cx, P1(pdst), rop);
317 getandputrop(P2(psrc), srcBit, dstBit, cx, P2(pdst), rop);
318 getandputrop(P3(psrc), srcBit, dstBit, cx, P3(pdst), rop);
319 pdst += width;
320 psrc += width;
321 }
322 } else {
323 maskbits(dx, cx, startmask, endmask, nlMiddle);
324 if (startmask)
325 nstart = 32 - (dx & 0x1f);
326 else
327 nstart = 0;
328 if (endmask)
329 nend = (dx + cx) & 0x1f;
330 else
331 nend = 0;
332
333 xoffSrc = ((sx & 0x1f) + nstart) & 0x1f;
334 srcStartOver = ((sx & 0x1f) + nstart) > 31;
335
336 if (sx >= dx) { /* move left to right */
337 pdstLine += (dx >> 5);
338 psrcLine += (sx >> 5);
339
340 while (cy--) {
341 psrc = psrcLine;
342 pdst = pdstLine;
343
344 if (startmask) {
345 getandputrop(P0(psrc), (sx & 0x1f),
346 (dx & 0x1f), nstart, P0(pdst), rop);
347 getandputrop(P1(psrc), (sx & 0x1f),
348 (dx & 0x1f), nstart, P1(pdst), rop);
349 getandputrop(P2(psrc), (sx & 0x1f),
350 (dx & 0x1f), nstart, P2(pdst), rop);
351 getandputrop(P3(psrc), (sx & 0x1f),
352 (dx & 0x1f), nstart, P3(pdst), rop);
353 pdst++;
354 if (srcStartOver)
355 psrc++;
356 }
357
358 /* special case for aligned operations */
359 if (xoffSrc == 0) {
360 nl = nlMiddle;
361 while (nl--) {
362 if (rop == RR_CLEAR) {
363 *P0(pdst) = 0;
364 *P1(pdst) = 0;
365 *P2(pdst) = 0;
366 *P3(pdst) = 0;
367 } else {
368 *P0(pdst) = *P0(psrc);
369 *P1(pdst) = *P1(psrc);
370 *P2(pdst) = *P2(psrc);
371 *P3(pdst) = *P3(psrc);
372 }
373 psrc++;
374 pdst++;
375 }
376 } else {
377 nl = nlMiddle + 1;
378 while (--nl) {
379 if (rop == RR_CLEAR) {
380 *P0(pdst) = 0;
381 *P1(pdst) = 0;
382 *P2(pdst) = 0;
383 *P3(pdst) = 0;
384 } else {
385 getunalignedword(P0(psrc),
386 xoffSrc, *P0(pdst));
387 getunalignedword(P1(psrc),
388 xoffSrc, *P1(pdst));
389 getunalignedword(P2(psrc),
390 xoffSrc, *P2(pdst));
391 getunalignedword(P3(psrc),
392 xoffSrc, *P3(pdst));
393 }
394 pdst++;
395 psrc++;
396 }
397 }
398
399 if (endmask) {
400 getandputrop(P0(psrc), xoffSrc, 0, nend,
401 P0(pdst), rop);
402 getandputrop(P1(psrc), xoffSrc, 0, nend,
403 P1(pdst), rop);
404 getandputrop(P2(psrc), xoffSrc, 0, nend,
405 P2(pdst), rop);
406 getandputrop(P3(psrc), xoffSrc, 0, nend,
407 P3(pdst), rop);
408 }
409
410 pdstLine += width;
411 psrcLine += width;
412 }
413 } else { /* move right to left */
414 pdstLine += ((dx + cx) >> 5);
415 psrcLine += ((sx + cx) >> 5);
416 /*
417 * If fetch of last partial bits from source crosses
418 * a longword boundary, start at the previous longword
419 */
420 if (xoffSrc + nend >= 32)
421 --psrcLine;
422
423 while (cy--) {
424 psrc = psrcLine;
425 pdst = pdstLine;
426
427 if (endmask) {
428 getandputrop(P0(psrc), xoffSrc, 0, nend,
429 P0(pdst), rop);
430 getandputrop(P1(psrc), xoffSrc, 0, nend,
431 P1(pdst), rop);
432 getandputrop(P2(psrc), xoffSrc, 0, nend,
433 P2(pdst), rop);
434 getandputrop(P3(psrc), xoffSrc, 0, nend,
435 P3(pdst), rop);
436 }
437
438 nl = nlMiddle + 1;
439 while (--nl) {
440 --psrc;
441 --pdst;
442 if (rop == RR_CLEAR) {
443 *P0(pdst) = 0;
444 *P1(pdst) = 0;
445 *P2(pdst) = 0;
446 *P3(pdst) = 0;
447 } else {
448 getunalignedword(P0(psrc),
449 xoffSrc, *P0(pdst));
450 getunalignedword(P1(psrc),
451 xoffSrc, *P1(pdst));
452 getunalignedword(P2(psrc),
453 xoffSrc, *P2(pdst));
454 getunalignedword(P3(psrc),
455 xoffSrc, *P3(pdst));
456 }
457 }
458
459 if (startmask) {
460 if (srcStartOver)
461 --psrc;
462 --pdst;
463 getandputrop(P0(psrc), (sx & 0x1f),
464 (dx & 0x1f), nstart, P0(pdst), rop);
465 getandputrop(P1(psrc), (sx & 0x1f),
466 (dx & 0x1f), nstart, P1(pdst), rop);
467 getandputrop(P2(psrc), (sx & 0x1f),
468 (dx & 0x1f), nstart, P2(pdst), rop);
469 getandputrop(P3(psrc), (sx & 0x1f),
470 (dx & 0x1f), nstart, P3(pdst), rop);
471 }
472
473 pdstLine += width;
474 psrcLine += width;
475 }
476 }
477 }
478
479 return (0);
480 }
481