VirtualBox

source: vbox/trunk/src/VBox/Devices/Graphics/DevVGATmpl.h@ 18437

Last change on this file since 18437 was 11166, checked in by vboxsync, 16 years ago

headers.

  • Property svn:eol-style set to native
File size: 16.7 KB
Line 
1/* $Id: $ */
2/** @file
3 * DevVGA - VBox VGA/VESA device, code templates.
4 */
5
6/*
7 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18 * Clara, CA 95054 USA or visit http://www.sun.com if you need
19 * additional information or have any questions.
20 * --------------------------------------------------------------------
21 *
22 * This code is based on:
23 *
24 * QEMU VGA Emulator templates
25 *
26 * Copyright (c) 2003 Fabrice Bellard
27 *
28 * Permission is hereby granted, free of charge, to any person obtaining a copy
29 * of this software and associated documentation files (the "Software"), to deal
30 * in the Software without restriction, including without limitation the rights
31 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
32 * copies of the Software, and to permit persons to whom the Software is
33 * furnished to do so, subject to the following conditions:
34 *
35 * The above copyright notice and this permission notice shall be included in
36 * all copies or substantial portions of the Software.
37 *
38 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
39 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
40 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
41 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
42 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
43 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
44 * THE SOFTWARE.
45 */
46
47#if DEPTH == 8
48#define BPP 1
49#define PIXEL_TYPE uint8_t
50#elif DEPTH == 15 || DEPTH == 16
51#define BPP 2
52#define PIXEL_TYPE uint16_t
53#elif DEPTH == 32
54#define BPP 4
55#define PIXEL_TYPE uint32_t
56#else
57#error unsupport depth
58#endif
59
60#if DEPTH != 15
61
62static inline void glue(vga_draw_glyph_line_, DEPTH)(uint8_t *d,
63 uint32_t font_data,
64 uint32_t xorcol,
65 uint32_t bgcol)
66{
67#if BPP == 1
68 ((uint32_t *)d)[0] = (dmask16[(font_data >> 4)] & xorcol) ^ bgcol;
69 ((uint32_t *)d)[1] = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol;
70#elif BPP == 2
71 ((uint32_t *)d)[0] = (dmask4[(font_data >> 6)] & xorcol) ^ bgcol;
72 ((uint32_t *)d)[1] = (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol;
73 ((uint32_t *)d)[2] = (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol;
74 ((uint32_t *)d)[3] = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol;
75#else
76 ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol;
77 ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol;
78 ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol;
79 ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol;
80 ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol;
81 ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol;
82 ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol;
83 ((uint32_t *)d)[7] = (-((font_data >> 0) & 1) & xorcol) ^ bgcol;
84#endif
85}
86
87static void glue(vga_draw_glyph8_, DEPTH)(uint8_t *d, int linesize,
88 const uint8_t *font_ptr, int h,
89 uint32_t fgcol, uint32_t bgcol)
90{
91 uint32_t font_data, xorcol;
92
93 xorcol = bgcol ^ fgcol;
94 do {
95 font_data = font_ptr[0];
96 glue(vga_draw_glyph_line_, DEPTH)(d, font_data, xorcol, bgcol);
97 font_ptr += 4;
98 d += linesize;
99 } while (--h);
100}
101
102static void glue(vga_draw_glyph16_, DEPTH)(uint8_t *d, int linesize,
103 const uint8_t *font_ptr, int h,
104 uint32_t fgcol, uint32_t bgcol)
105{
106 uint32_t font_data, xorcol;
107
108 xorcol = bgcol ^ fgcol;
109 do {
110 font_data = font_ptr[0];
111 glue(vga_draw_glyph_line_, DEPTH)(d,
112 expand4to8[font_data >> 4],
113 xorcol, bgcol);
114 glue(vga_draw_glyph_line_, DEPTH)(d + 8 * BPP,
115 expand4to8[font_data & 0x0f],
116 xorcol, bgcol);
117 font_ptr += 4;
118 d += linesize;
119 } while (--h);
120}
121
122static void glue(vga_draw_glyph9_, DEPTH)(uint8_t *d, int linesize,
123 const uint8_t *font_ptr, int h,
124 uint32_t fgcol, uint32_t bgcol, int dup9)
125{
126 uint32_t font_data, xorcol, v;
127
128 xorcol = bgcol ^ fgcol;
129 do {
130 font_data = font_ptr[0];
131#if BPP == 1
132 cpu_to_32wu((uint32_t *)d, (dmask16[(font_data >> 4)] & xorcol) ^ bgcol);
133 v = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol;
134 cpu_to_32wu(((uint32_t *)d)+1, v);
135 if (dup9)
136 ((uint8_t *)d)[8] = v >> (24 * (1 - BIG));
137 else
138 ((uint8_t *)d)[8] = bgcol;
139
140#elif BPP == 2
141 cpu_to_32wu(((uint32_t *)d)+0, (dmask4[(font_data >> 6)] & xorcol) ^ bgcol);
142 cpu_to_32wu(((uint32_t *)d)+1, (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol);
143 cpu_to_32wu(((uint32_t *)d)+2, (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol);
144 v = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol;
145 cpu_to_32wu(((uint32_t *)d)+3, v);
146 if (dup9)
147 ((uint16_t *)d)[8] = v >> (16 * (1 - BIG));
148 else
149 ((uint16_t *)d)[8] = bgcol;
150#else
151 ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol;
152 ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol;
153 ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol;
154 ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol;
155 ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol;
156 ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol;
157 ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol;
158 v = (-((font_data >> 0) & 1) & xorcol) ^ bgcol;
159 ((uint32_t *)d)[7] = v;
160 if (dup9)
161 ((uint32_t *)d)[8] = v;
162 else
163 ((uint32_t *)d)[8] = bgcol;
164#endif
165 font_ptr += 4;
166 d += linesize;
167 } while (--h);
168}
169
170/*
171 * 4 color mode
172 */
173static void glue(vga_draw_line2_, DEPTH)(VGAState *s1, uint8_t *d,
174 const uint8_t *s, int width)
175{
176 uint32_t plane_mask, *palette, data, v, src_inc, dwb_mode;
177 int x;
178
179 palette = s1->last_palette;
180 plane_mask = mask16[s1->ar[0x12] & 0xf];
181 dwb_mode = (s1->cr[0x14] & 0x40) ? 2 : (s1->cr[0x17] & 0x40) ? 0 : 1;
182 src_inc = 4 << dwb_mode;
183 width >>= 3;
184 for(x = 0; x < width; x++) {
185 data = ((uint32_t *)s)[0];
186 data &= plane_mask;
187 v = expand2[GET_PLANE(data, 0)];
188 v |= expand2[GET_PLANE(data, 2)] << 2;
189 ((PIXEL_TYPE *)d)[0] = palette[v >> 12];
190 ((PIXEL_TYPE *)d)[1] = palette[(v >> 8) & 0xf];
191 ((PIXEL_TYPE *)d)[2] = palette[(v >> 4) & 0xf];
192 ((PIXEL_TYPE *)d)[3] = palette[(v >> 0) & 0xf];
193
194 v = expand2[GET_PLANE(data, 1)];
195 v |= expand2[GET_PLANE(data, 3)] << 2;
196 ((PIXEL_TYPE *)d)[4] = palette[v >> 12];
197 ((PIXEL_TYPE *)d)[5] = palette[(v >> 8) & 0xf];
198 ((PIXEL_TYPE *)d)[6] = palette[(v >> 4) & 0xf];
199 ((PIXEL_TYPE *)d)[7] = palette[(v >> 0) & 0xf];
200 d += BPP * 8;
201 s += src_inc;
202 }
203}
204
205#if BPP == 1
206#define PUT_PIXEL2(d, n, v) ((uint16_t *)d)[(n)] = (v)
207#elif BPP == 2
208#define PUT_PIXEL2(d, n, v) ((uint32_t *)d)[(n)] = (v)
209#else
210#define PUT_PIXEL2(d, n, v) \
211((uint32_t *)d)[2*(n)] = ((uint32_t *)d)[2*(n)+1] = (v)
212#endif
213
214/*
215 * 4 color mode, dup2 horizontal
216 */
217static void glue(vga_draw_line2d2_, DEPTH)(VGAState *s1, uint8_t *d,
218 const uint8_t *s, int width)
219{
220 uint32_t plane_mask, *palette, data, v, src_inc, dwb_mode;
221 int x;
222
223 palette = s1->last_palette;
224 plane_mask = mask16[s1->ar[0x12] & 0xf];
225 dwb_mode = (s1->cr[0x14] & 0x40) ? 2 : (s1->cr[0x17] & 0x40) ? 0 : 1;
226 src_inc = 4 << dwb_mode;
227 width >>= 3;
228 for(x = 0; x < width; x++) {
229 data = ((uint32_t *)s)[0];
230 data &= plane_mask;
231 v = expand2[GET_PLANE(data, 0)];
232 v |= expand2[GET_PLANE(data, 2)] << 2;
233 PUT_PIXEL2(d, 0, palette[v >> 12]);
234 PUT_PIXEL2(d, 1, palette[(v >> 8) & 0xf]);
235 PUT_PIXEL2(d, 2, palette[(v >> 4) & 0xf]);
236 PUT_PIXEL2(d, 3, palette[(v >> 0) & 0xf]);
237
238 v = expand2[GET_PLANE(data, 1)];
239 v |= expand2[GET_PLANE(data, 3)] << 2;
240 PUT_PIXEL2(d, 4, palette[v >> 12]);
241 PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]);
242 PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]);
243 PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]);
244 d += BPP * 16;
245 s += src_inc;
246 }
247}
248
249/*
250 * 16 color mode
251 */
252static void glue(vga_draw_line4_, DEPTH)(VGAState *s1, uint8_t *d,
253 const uint8_t *s, int width)
254{
255 uint32_t plane_mask, data, v, *palette;
256 int x;
257
258 palette = s1->last_palette;
259 plane_mask = mask16[s1->ar[0x12] & 0xf];
260 width >>= 3;
261 for(x = 0; x < width; x++) {
262 data = ((uint32_t *)s)[0];
263 data &= plane_mask;
264 v = expand4[GET_PLANE(data, 0)];
265 v |= expand4[GET_PLANE(data, 1)] << 1;
266 v |= expand4[GET_PLANE(data, 2)] << 2;
267 v |= expand4[GET_PLANE(data, 3)] << 3;
268 ((PIXEL_TYPE *)d)[0] = palette[v >> 28];
269 ((PIXEL_TYPE *)d)[1] = palette[(v >> 24) & 0xf];
270 ((PIXEL_TYPE *)d)[2] = palette[(v >> 20) & 0xf];
271 ((PIXEL_TYPE *)d)[3] = palette[(v >> 16) & 0xf];
272 ((PIXEL_TYPE *)d)[4] = palette[(v >> 12) & 0xf];
273 ((PIXEL_TYPE *)d)[5] = palette[(v >> 8) & 0xf];
274 ((PIXEL_TYPE *)d)[6] = palette[(v >> 4) & 0xf];
275 ((PIXEL_TYPE *)d)[7] = palette[(v >> 0) & 0xf];
276 d += BPP * 8;
277 s += 4;
278 }
279}
280
281/*
282 * 16 color mode, dup2 horizontal
283 */
284static void glue(vga_draw_line4d2_, DEPTH)(VGAState *s1, uint8_t *d,
285 const uint8_t *s, int width)
286{
287 uint32_t plane_mask, data, v, *palette;
288 int x;
289
290 palette = s1->last_palette;
291 plane_mask = mask16[s1->ar[0x12] & 0xf];
292 width >>= 3;
293 for(x = 0; x < width; x++) {
294 data = ((uint32_t *)s)[0];
295 data &= plane_mask;
296 v = expand4[GET_PLANE(data, 0)];
297 v |= expand4[GET_PLANE(data, 1)] << 1;
298 v |= expand4[GET_PLANE(data, 2)] << 2;
299 v |= expand4[GET_PLANE(data, 3)] << 3;
300 PUT_PIXEL2(d, 0, palette[v >> 28]);
301 PUT_PIXEL2(d, 1, palette[(v >> 24) & 0xf]);
302 PUT_PIXEL2(d, 2, palette[(v >> 20) & 0xf]);
303 PUT_PIXEL2(d, 3, palette[(v >> 16) & 0xf]);
304 PUT_PIXEL2(d, 4, palette[(v >> 12) & 0xf]);
305 PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]);
306 PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]);
307 PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]);
308 d += BPP * 16;
309 s += 4;
310 }
311}
312
313/*
314 * 256 color mode, double pixels
315 *
316 * XXX: add plane_mask support (never used in standard VGA modes)
317 */
318static void glue(vga_draw_line8d2_, DEPTH)(VGAState *s1, uint8_t *d,
319 const uint8_t *s, int width)
320{
321 uint32_t *palette;
322 int x;
323
324 palette = s1->last_palette;
325 width >>= 3;
326 for(x = 0; x < width; x++) {
327 PUT_PIXEL2(d, 0, palette[s[0]]);
328 PUT_PIXEL2(d, 1, palette[s[1]]);
329 PUT_PIXEL2(d, 2, palette[s[2]]);
330 PUT_PIXEL2(d, 3, palette[s[3]]);
331 d += BPP * 8;
332 s += 4;
333 }
334}
335
336/*
337 * standard 256 color mode
338 *
339 * XXX: add plane_mask support (never used in standard VGA modes)
340 */
341static void glue(vga_draw_line8_, DEPTH)(VGAState *s1, uint8_t *d,
342 const uint8_t *s, int width)
343{
344 uint32_t *palette;
345 int x;
346
347 palette = s1->last_palette;
348 width >>= 3;
349 for(x = 0; x < width; x++) {
350 ((PIXEL_TYPE *)d)[0] = palette[s[0]];
351 ((PIXEL_TYPE *)d)[1] = palette[s[1]];
352 ((PIXEL_TYPE *)d)[2] = palette[s[2]];
353 ((PIXEL_TYPE *)d)[3] = palette[s[3]];
354 ((PIXEL_TYPE *)d)[4] = palette[s[4]];
355 ((PIXEL_TYPE *)d)[5] = palette[s[5]];
356 ((PIXEL_TYPE *)d)[6] = palette[s[6]];
357 ((PIXEL_TYPE *)d)[7] = palette[s[7]];
358 d += BPP * 8;
359 s += 8;
360 }
361}
362
363#endif /* DEPTH != 15 */
364
365
366/* XXX: optimize */
367
368/*
369 * 15 bit color
370 */
371static void glue(vga_draw_line15_, DEPTH)(VGAState *s1, uint8_t *d,
372 const uint8_t *s, int width)
373{
374#if DEPTH == 15 && defined(WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
375 memcpy(d, s, width * 2);
376#else
377 int w;
378 uint32_t v, r, g, b;
379
380 w = width;
381 do {
382 v = lduw_raw((void *)s);
383 r = (v >> 7) & 0xf8;
384 g = (v >> 2) & 0xf8;
385 b = (v << 3) & 0xf8;
386 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b);
387 s += 2;
388 d += BPP;
389 } while (--w != 0);
390#endif
391}
392
393/*
394 * 16 bit color
395 */
396static void glue(vga_draw_line16_, DEPTH)(VGAState *s1, uint8_t *d,
397 const uint8_t *s, int width)
398{
399#if DEPTH == 16 && defined(WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
400 memcpy(d, s, width * 2);
401#else
402 int w;
403 uint32_t v, r, g, b;
404
405 w = width;
406 do {
407 v = lduw_raw((void *)s);
408 r = (v >> 8) & 0xf8;
409 g = (v >> 3) & 0xfc;
410 b = (v << 3) & 0xf8;
411 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b);
412 s += 2;
413 d += BPP;
414 } while (--w != 0);
415#endif
416}
417
418/*
419 * 24 bit color
420 */
421static void glue(vga_draw_line24_, DEPTH)(VGAState *s1, uint8_t *d,
422 const uint8_t *s, int width)
423{
424 int w;
425 uint32_t r, g, b;
426
427 w = width;
428 do {
429#if defined(TARGET_WORDS_BIGENDIAN)
430 r = s[0];
431 g = s[1];
432 b = s[2];
433#else
434 b = s[0];
435 g = s[1];
436 r = s[2];
437#endif
438 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b);
439 s += 3;
440 d += BPP;
441 } while (--w != 0);
442}
443
444/*
445 * 32 bit color
446 */
447static void glue(vga_draw_line32_, DEPTH)(VGAState *s1, uint8_t *d,
448 const uint8_t *s, int width)
449{
450#if DEPTH == 32 && defined(WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
451 memcpy(d, s, width * 4);
452#else
453 int w;
454 uint32_t r, g, b;
455
456 w = width;
457 do {
458#if defined(TARGET_WORDS_BIGENDIAN)
459 r = s[1];
460 g = s[2];
461 b = s[3];
462#else
463 b = s[0];
464 g = s[1];
465 r = s[2];
466#endif
467 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b);
468 s += 4;
469 d += BPP;
470 } while (--w != 0);
471#endif
472}
473
474#if DEPTH != 15
475#ifndef VBOX
476#ifdef VBOX
477static
478#endif/* VBOX */
479void glue(vga_draw_cursor_line_, DEPTH)(uint8_t *d1,
480 const uint8_t *src1,
481 int poffset, int w,
482 unsigned int color0,
483 unsigned int color1,
484 unsigned int color_xor)
485{
486 const uint8_t *plane0, *plane1;
487 int x, b0, b1;
488 uint8_t *d;
489
490 d = d1;
491 plane0 = src1;
492 plane1 = src1 + poffset;
493 for(x = 0; x < w; x++) {
494 b0 = (plane0[x >> 3] >> (7 - (x & 7))) & 1;
495 b1 = (plane1[x >> 3] >> (7 - (x & 7))) & 1;
496#if DEPTH == 8
497 switch(b0 | (b1 << 1)) {
498 case 0:
499 break;
500 case 1:
501 d[0] ^= color_xor;
502 break;
503 case 2:
504 d[0] = color0;
505 break;
506 case 3:
507 d[0] = color1;
508 break;
509 }
510#elif DEPTH == 16
511 switch(b0 | (b1 << 1)) {
512 case 0:
513 break;
514 case 1:
515 ((uint16_t *)d)[0] ^= color_xor;
516 break;
517 case 2:
518 ((uint16_t *)d)[0] = color0;
519 break;
520 case 3:
521 ((uint16_t *)d)[0] = color1;
522 break;
523 }
524#elif DEPTH == 32
525 switch(b0 | (b1 << 1)) {
526 case 0:
527 break;
528 case 1:
529 ((uint32_t *)d)[0] ^= color_xor;
530 break;
531 case 2:
532 ((uint32_t *)d)[0] = color0;
533 break;
534 case 3:
535 ((uint32_t *)d)[0] = color1;
536 break;
537 }
538#else
539#error unsupported depth
540#endif
541 d += BPP;
542 }
543}
544#endif /* !VBOX */
545#endif
546
547#undef PUT_PIXEL2
548#undef DEPTH
549#undef BPP
550#undef PIXEL_TYPE
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette