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1 | /* | |
2 | * QEMU VGA Emulator. | |
3 | * | |
4 | * Copyright (c) 2003 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | #include "hw/hw.h" | |
25 | #include "vga.h" | |
26 | #include "ui/console.h" | |
27 | #include "hw/i386/pc.h" | |
28 | #include "hw/pci/pci.h" | |
29 | #include "vga_int.h" | |
30 | #include "ui/pixel_ops.h" | |
31 | #include "qemu/timer.h" | |
32 | #include "hw/xen/xen.h" | |
33 | #include "trace.h" | |
34 | ||
35 | //#define DEBUG_VGA | |
36 | //#define DEBUG_VGA_MEM | |
37 | //#define DEBUG_VGA_REG | |
38 | ||
39 | //#define DEBUG_BOCHS_VBE | |
40 | ||
41 | /* 16 state changes per vertical frame @60 Hz */ | |
42 | #define VGA_TEXT_CURSOR_PERIOD_MS (1000 * 2 * 16 / 60) | |
43 | ||
44 | /* | |
45 | * Video Graphics Array (VGA) | |
46 | * | |
47 | * Chipset docs for original IBM VGA: | |
48 | * http://www.mcamafia.de/pdf/ibm_vgaxga_trm2.pdf | |
49 | * | |
50 | * FreeVGA site: | |
51 | * http://www.osdever.net/FreeVGA/home.htm | |
52 | * | |
53 | * Standard VGA features and Bochs VBE extensions are implemented. | |
54 | */ | |
55 | ||
56 | /* force some bits to zero */ | |
57 | const uint8_t sr_mask[8] = { | |
58 | 0x03, | |
59 | 0x3d, | |
60 | 0x0f, | |
61 | 0x3f, | |
62 | 0x0e, | |
63 | 0x00, | |
64 | 0x00, | |
65 | 0xff, | |
66 | }; | |
67 | ||
68 | const uint8_t gr_mask[16] = { | |
69 | 0x0f, /* 0x00 */ | |
70 | 0x0f, /* 0x01 */ | |
71 | 0x0f, /* 0x02 */ | |
72 | 0x1f, /* 0x03 */ | |
73 | 0x03, /* 0x04 */ | |
74 | 0x7b, /* 0x05 */ | |
75 | 0x0f, /* 0x06 */ | |
76 | 0x0f, /* 0x07 */ | |
77 | 0xff, /* 0x08 */ | |
78 | 0x00, /* 0x09 */ | |
79 | 0x00, /* 0x0a */ | |
80 | 0x00, /* 0x0b */ | |
81 | 0x00, /* 0x0c */ | |
82 | 0x00, /* 0x0d */ | |
83 | 0x00, /* 0x0e */ | |
84 | 0x00, /* 0x0f */ | |
85 | }; | |
86 | ||
87 | #define cbswap_32(__x) \ | |
88 | ((uint32_t)( \ | |
89 | (((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) | \ | |
90 | (((uint32_t)(__x) & (uint32_t)0x0000ff00UL) << 8) | \ | |
91 | (((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >> 8) | \ | |
92 | (((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) )) | |
93 | ||
94 | #ifdef HOST_WORDS_BIGENDIAN | |
95 | #define PAT(x) cbswap_32(x) | |
96 | #else | |
97 | #define PAT(x) (x) | |
98 | #endif | |
99 | ||
100 | #ifdef HOST_WORDS_BIGENDIAN | |
101 | #define BIG 1 | |
102 | #else | |
103 | #define BIG 0 | |
104 | #endif | |
105 | ||
106 | #ifdef HOST_WORDS_BIGENDIAN | |
107 | #define GET_PLANE(data, p) (((data) >> (24 - (p) * 8)) & 0xff) | |
108 | #else | |
109 | #define GET_PLANE(data, p) (((data) >> ((p) * 8)) & 0xff) | |
110 | #endif | |
111 | ||
112 | static const uint32_t mask16[16] = { | |
113 | PAT(0x00000000), | |
114 | PAT(0x000000ff), | |
115 | PAT(0x0000ff00), | |
116 | PAT(0x0000ffff), | |
117 | PAT(0x00ff0000), | |
118 | PAT(0x00ff00ff), | |
119 | PAT(0x00ffff00), | |
120 | PAT(0x00ffffff), | |
121 | PAT(0xff000000), | |
122 | PAT(0xff0000ff), | |
123 | PAT(0xff00ff00), | |
124 | PAT(0xff00ffff), | |
125 | PAT(0xffff0000), | |
126 | PAT(0xffff00ff), | |
127 | PAT(0xffffff00), | |
128 | PAT(0xffffffff), | |
129 | }; | |
130 | ||
131 | #undef PAT | |
132 | ||
133 | #ifdef HOST_WORDS_BIGENDIAN | |
134 | #define PAT(x) (x) | |
135 | #else | |
136 | #define PAT(x) cbswap_32(x) | |
137 | #endif | |
138 | ||
139 | static const uint32_t dmask16[16] = { | |
140 | PAT(0x00000000), | |
141 | PAT(0x000000ff), | |
142 | PAT(0x0000ff00), | |
143 | PAT(0x0000ffff), | |
144 | PAT(0x00ff0000), | |
145 | PAT(0x00ff00ff), | |
146 | PAT(0x00ffff00), | |
147 | PAT(0x00ffffff), | |
148 | PAT(0xff000000), | |
149 | PAT(0xff0000ff), | |
150 | PAT(0xff00ff00), | |
151 | PAT(0xff00ffff), | |
152 | PAT(0xffff0000), | |
153 | PAT(0xffff00ff), | |
154 | PAT(0xffffff00), | |
155 | PAT(0xffffffff), | |
156 | }; | |
157 | ||
158 | static const uint32_t dmask4[4] = { | |
159 | PAT(0x00000000), | |
160 | PAT(0x0000ffff), | |
161 | PAT(0xffff0000), | |
162 | PAT(0xffffffff), | |
163 | }; | |
164 | ||
165 | static uint32_t expand4[256]; | |
166 | static uint16_t expand2[256]; | |
167 | static uint8_t expand4to8[16]; | |
168 | ||
169 | static void vga_update_memory_access(VGACommonState *s) | |
170 | { | |
171 | MemoryRegion *region, *old_region = s->chain4_alias; | |
172 | hwaddr base, offset, size; | |
173 | ||
174 | s->chain4_alias = NULL; | |
175 | ||
176 | if ((s->sr[VGA_SEQ_PLANE_WRITE] & VGA_SR02_ALL_PLANES) == | |
177 | VGA_SR02_ALL_PLANES && s->sr[VGA_SEQ_MEMORY_MODE] & VGA_SR04_CHN_4M) { | |
178 | offset = 0; | |
179 | switch ((s->gr[VGA_GFX_MISC] >> 2) & 3) { | |
180 | case 0: | |
181 | base = 0xa0000; | |
182 | size = 0x20000; | |
183 | break; | |
184 | case 1: | |
185 | base = 0xa0000; | |
186 | size = 0x10000; | |
187 | offset = s->bank_offset; | |
188 | break; | |
189 | case 2: | |
190 | base = 0xb0000; | |
191 | size = 0x8000; | |
192 | break; | |
193 | case 3: | |
194 | default: | |
195 | base = 0xb8000; | |
196 | size = 0x8000; | |
197 | break; | |
198 | } | |
199 | base += isa_mem_base; | |
200 | region = g_malloc(sizeof(*region)); | |
201 | memory_region_init_alias(region, memory_region_owner(&s->vram), | |
202 | "vga.chain4", &s->vram, offset, size); | |
203 | memory_region_add_subregion_overlap(s->legacy_address_space, base, | |
204 | region, 2); | |
205 | s->chain4_alias = region; | |
206 | } | |
207 | if (old_region) { | |
208 | memory_region_del_subregion(s->legacy_address_space, old_region); | |
209 | memory_region_destroy(old_region); | |
210 | g_free(old_region); | |
211 | s->plane_updated = 0xf; | |
212 | } | |
213 | } | |
214 | ||
215 | static void vga_dumb_update_retrace_info(VGACommonState *s) | |
216 | { | |
217 | (void) s; | |
218 | } | |
219 | ||
220 | static void vga_precise_update_retrace_info(VGACommonState *s) | |
221 | { | |
222 | int htotal_chars; | |
223 | int hretr_start_char; | |
224 | int hretr_skew_chars; | |
225 | int hretr_end_char; | |
226 | ||
227 | int vtotal_lines; | |
228 | int vretr_start_line; | |
229 | int vretr_end_line; | |
230 | ||
231 | int dots; | |
232 | #if 0 | |
233 | int div2, sldiv2; | |
234 | #endif | |
235 | int clocking_mode; | |
236 | int clock_sel; | |
237 | const int clk_hz[] = {25175000, 28322000, 25175000, 25175000}; | |
238 | int64_t chars_per_sec; | |
239 | struct vga_precise_retrace *r = &s->retrace_info.precise; | |
240 | ||
241 | htotal_chars = s->cr[VGA_CRTC_H_TOTAL] + 5; | |
242 | hretr_start_char = s->cr[VGA_CRTC_H_SYNC_START]; | |
243 | hretr_skew_chars = (s->cr[VGA_CRTC_H_SYNC_END] >> 5) & 3; | |
244 | hretr_end_char = s->cr[VGA_CRTC_H_SYNC_END] & 0x1f; | |
245 | ||
246 | vtotal_lines = (s->cr[VGA_CRTC_V_TOTAL] | | |
247 | (((s->cr[VGA_CRTC_OVERFLOW] & 1) | | |
248 | ((s->cr[VGA_CRTC_OVERFLOW] >> 4) & 2)) << 8)) + 2; | |
249 | vretr_start_line = s->cr[VGA_CRTC_V_SYNC_START] | | |
250 | ((((s->cr[VGA_CRTC_OVERFLOW] >> 2) & 1) | | |
251 | ((s->cr[VGA_CRTC_OVERFLOW] >> 6) & 2)) << 8); | |
252 | vretr_end_line = s->cr[VGA_CRTC_V_SYNC_END] & 0xf; | |
253 | ||
254 | clocking_mode = (s->sr[VGA_SEQ_CLOCK_MODE] >> 3) & 1; | |
255 | clock_sel = (s->msr >> 2) & 3; | |
256 | dots = (s->msr & 1) ? 8 : 9; | |
257 | ||
258 | chars_per_sec = clk_hz[clock_sel] / dots; | |
259 | ||
260 | htotal_chars <<= clocking_mode; | |
261 | ||
262 | r->total_chars = vtotal_lines * htotal_chars; | |
263 | if (r->freq) { | |
264 | r->ticks_per_char = get_ticks_per_sec() / (r->total_chars * r->freq); | |
265 | } else { | |
266 | r->ticks_per_char = get_ticks_per_sec() / chars_per_sec; | |
267 | } | |
268 | ||
269 | r->vstart = vretr_start_line; | |
270 | r->vend = r->vstart + vretr_end_line + 1; | |
271 | ||
272 | r->hstart = hretr_start_char + hretr_skew_chars; | |
273 | r->hend = r->hstart + hretr_end_char + 1; | |
274 | r->htotal = htotal_chars; | |
275 | ||
276 | #if 0 | |
277 | div2 = (s->cr[VGA_CRTC_MODE] >> 2) & 1; | |
278 | sldiv2 = (s->cr[VGA_CRTC_MODE] >> 3) & 1; | |
279 | printf ( | |
280 | "hz=%f\n" | |
281 | "htotal = %d\n" | |
282 | "hretr_start = %d\n" | |
283 | "hretr_skew = %d\n" | |
284 | "hretr_end = %d\n" | |
285 | "vtotal = %d\n" | |
286 | "vretr_start = %d\n" | |
287 | "vretr_end = %d\n" | |
288 | "div2 = %d sldiv2 = %d\n" | |
289 | "clocking_mode = %d\n" | |
290 | "clock_sel = %d %d\n" | |
291 | "dots = %d\n" | |
292 | "ticks/char = %" PRId64 "\n" | |
293 | "\n", | |
294 | (double) get_ticks_per_sec() / (r->ticks_per_char * r->total_chars), | |
295 | htotal_chars, | |
296 | hretr_start_char, | |
297 | hretr_skew_chars, | |
298 | hretr_end_char, | |
299 | vtotal_lines, | |
300 | vretr_start_line, | |
301 | vretr_end_line, | |
302 | div2, sldiv2, | |
303 | clocking_mode, | |
304 | clock_sel, | |
305 | clk_hz[clock_sel], | |
306 | dots, | |
307 | r->ticks_per_char | |
308 | ); | |
309 | #endif | |
310 | } | |
311 | ||
312 | static uint8_t vga_precise_retrace(VGACommonState *s) | |
313 | { | |
314 | struct vga_precise_retrace *r = &s->retrace_info.precise; | |
315 | uint8_t val = s->st01 & ~(ST01_V_RETRACE | ST01_DISP_ENABLE); | |
316 | ||
317 | if (r->total_chars) { | |
318 | int cur_line, cur_line_char, cur_char; | |
319 | int64_t cur_tick; | |
320 | ||
321 | cur_tick = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); | |
322 | ||
323 | cur_char = (cur_tick / r->ticks_per_char) % r->total_chars; | |
324 | cur_line = cur_char / r->htotal; | |
325 | ||
326 | if (cur_line >= r->vstart && cur_line <= r->vend) { | |
327 | val |= ST01_V_RETRACE | ST01_DISP_ENABLE; | |
328 | } else { | |
329 | cur_line_char = cur_char % r->htotal; | |
330 | if (cur_line_char >= r->hstart && cur_line_char <= r->hend) { | |
331 | val |= ST01_DISP_ENABLE; | |
332 | } | |
333 | } | |
334 | ||
335 | return val; | |
336 | } else { | |
337 | return s->st01 ^ (ST01_V_RETRACE | ST01_DISP_ENABLE); | |
338 | } | |
339 | } | |
340 | ||
341 | static uint8_t vga_dumb_retrace(VGACommonState *s) | |
342 | { | |
343 | return s->st01 ^ (ST01_V_RETRACE | ST01_DISP_ENABLE); | |
344 | } | |
345 | ||
346 | int vga_ioport_invalid(VGACommonState *s, uint32_t addr) | |
347 | { | |
348 | if (s->msr & VGA_MIS_COLOR) { | |
349 | /* Color */ | |
350 | return (addr >= 0x3b0 && addr <= 0x3bf); | |
351 | } else { | |
352 | /* Monochrome */ | |
353 | return (addr >= 0x3d0 && addr <= 0x3df); | |
354 | } | |
355 | } | |
356 | ||
357 | uint32_t vga_ioport_read(void *opaque, uint32_t addr) | |
358 | { | |
359 | VGACommonState *s = opaque; | |
360 | int val, index; | |
361 | ||
362 | qemu_flush_coalesced_mmio_buffer(); | |
363 | ||
364 | if (vga_ioport_invalid(s, addr)) { | |
365 | val = 0xff; | |
366 | } else { | |
367 | switch(addr) { | |
368 | case VGA_ATT_W: | |
369 | if (s->ar_flip_flop == 0) { | |
370 | val = s->ar_index; | |
371 | } else { | |
372 | val = 0; | |
373 | } | |
374 | break; | |
375 | case VGA_ATT_R: | |
376 | index = s->ar_index & 0x1f; | |
377 | if (index < VGA_ATT_C) { | |
378 | val = s->ar[index]; | |
379 | } else { | |
380 | val = 0; | |
381 | } | |
382 | break; | |
383 | case VGA_MIS_W: | |
384 | val = s->st00; | |
385 | break; | |
386 | case VGA_SEQ_I: | |
387 | val = s->sr_index; | |
388 | break; | |
389 | case VGA_SEQ_D: | |
390 | val = s->sr[s->sr_index]; | |
391 | #ifdef DEBUG_VGA_REG | |
392 | printf("vga: read SR%x = 0x%02x\n", s->sr_index, val); | |
393 | #endif | |
394 | break; | |
395 | case VGA_PEL_IR: | |
396 | val = s->dac_state; | |
397 | break; | |
398 | case VGA_PEL_IW: | |
399 | val = s->dac_write_index; | |
400 | break; | |
401 | case VGA_PEL_D: | |
402 | val = s->palette[s->dac_read_index * 3 + s->dac_sub_index]; | |
403 | if (++s->dac_sub_index == 3) { | |
404 | s->dac_sub_index = 0; | |
405 | s->dac_read_index++; | |
406 | } | |
407 | break; | |
408 | case VGA_FTC_R: | |
409 | val = s->fcr; | |
410 | break; | |
411 | case VGA_MIS_R: | |
412 | val = s->msr; | |
413 | break; | |
414 | case VGA_GFX_I: | |
415 | val = s->gr_index; | |
416 | break; | |
417 | case VGA_GFX_D: | |
418 | val = s->gr[s->gr_index]; | |
419 | #ifdef DEBUG_VGA_REG | |
420 | printf("vga: read GR%x = 0x%02x\n", s->gr_index, val); | |
421 | #endif | |
422 | break; | |
423 | case VGA_CRT_IM: | |
424 | case VGA_CRT_IC: | |
425 | val = s->cr_index; | |
426 | break; | |
427 | case VGA_CRT_DM: | |
428 | case VGA_CRT_DC: | |
429 | val = s->cr[s->cr_index]; | |
430 | #ifdef DEBUG_VGA_REG | |
431 | printf("vga: read CR%x = 0x%02x\n", s->cr_index, val); | |
432 | #endif | |
433 | break; | |
434 | case VGA_IS1_RM: | |
435 | case VGA_IS1_RC: | |
436 | /* just toggle to fool polling */ | |
437 | val = s->st01 = s->retrace(s); | |
438 | s->ar_flip_flop = 0; | |
439 | break; | |
440 | default: | |
441 | val = 0x00; | |
442 | break; | |
443 | } | |
444 | } | |
445 | #if defined(DEBUG_VGA) | |
446 | printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val); | |
447 | #endif | |
448 | return val; | |
449 | } | |
450 | ||
451 | void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) | |
452 | { | |
453 | VGACommonState *s = opaque; | |
454 | int index; | |
455 | ||
456 | qemu_flush_coalesced_mmio_buffer(); | |
457 | ||
458 | /* check port range access depending on color/monochrome mode */ | |
459 | if (vga_ioport_invalid(s, addr)) { | |
460 | return; | |
461 | } | |
462 | #ifdef DEBUG_VGA | |
463 | printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val); | |
464 | #endif | |
465 | ||
466 | switch(addr) { | |
467 | case VGA_ATT_W: | |
468 | if (s->ar_flip_flop == 0) { | |
469 | val &= 0x3f; | |
470 | s->ar_index = val; | |
471 | } else { | |
472 | index = s->ar_index & 0x1f; | |
473 | switch(index) { | |
474 | case VGA_ATC_PALETTE0 ... VGA_ATC_PALETTEF: | |
475 | s->ar[index] = val & 0x3f; | |
476 | break; | |
477 | case VGA_ATC_MODE: | |
478 | s->ar[index] = val & ~0x10; | |
479 | break; | |
480 | case VGA_ATC_OVERSCAN: | |
481 | s->ar[index] = val; | |
482 | break; | |
483 | case VGA_ATC_PLANE_ENABLE: | |
484 | s->ar[index] = val & ~0xc0; | |
485 | break; | |
486 | case VGA_ATC_PEL: | |
487 | s->ar[index] = val & ~0xf0; | |
488 | break; | |
489 | case VGA_ATC_COLOR_PAGE: | |
490 | s->ar[index] = val & ~0xf0; | |
491 | break; | |
492 | default: | |
493 | break; | |
494 | } | |
495 | } | |
496 | s->ar_flip_flop ^= 1; | |
497 | break; | |
498 | case VGA_MIS_W: | |
499 | s->msr = val & ~0x10; | |
500 | s->update_retrace_info(s); | |
501 | break; | |
502 | case VGA_SEQ_I: | |
503 | s->sr_index = val & 7; | |
504 | break; | |
505 | case VGA_SEQ_D: | |
506 | #ifdef DEBUG_VGA_REG | |
507 | printf("vga: write SR%x = 0x%02x\n", s->sr_index, val); | |
508 | #endif | |
509 | s->sr[s->sr_index] = val & sr_mask[s->sr_index]; | |
510 | if (s->sr_index == VGA_SEQ_CLOCK_MODE) { | |
511 | s->update_retrace_info(s); | |
512 | } | |
513 | vga_update_memory_access(s); | |
514 | break; | |
515 | case VGA_PEL_IR: | |
516 | s->dac_read_index = val; | |
517 | s->dac_sub_index = 0; | |
518 | s->dac_state = 3; | |
519 | break; | |
520 | case VGA_PEL_IW: | |
521 | s->dac_write_index = val; | |
522 | s->dac_sub_index = 0; | |
523 | s->dac_state = 0; | |
524 | break; | |
525 | case VGA_PEL_D: | |
526 | s->dac_cache[s->dac_sub_index] = val; | |
527 | if (++s->dac_sub_index == 3) { | |
528 | memcpy(&s->palette[s->dac_write_index * 3], s->dac_cache, 3); | |
529 | s->dac_sub_index = 0; | |
530 | s->dac_write_index++; | |
531 | } | |
532 | break; | |
533 | case VGA_GFX_I: | |
534 | s->gr_index = val & 0x0f; | |
535 | break; | |
536 | case VGA_GFX_D: | |
537 | #ifdef DEBUG_VGA_REG | |
538 | printf("vga: write GR%x = 0x%02x\n", s->gr_index, val); | |
539 | #endif | |
540 | s->gr[s->gr_index] = val & gr_mask[s->gr_index]; | |
541 | vga_update_memory_access(s); | |
542 | break; | |
543 | case VGA_CRT_IM: | |
544 | case VGA_CRT_IC: | |
545 | s->cr_index = val; | |
546 | break; | |
547 | case VGA_CRT_DM: | |
548 | case VGA_CRT_DC: | |
549 | #ifdef DEBUG_VGA_REG | |
550 | printf("vga: write CR%x = 0x%02x\n", s->cr_index, val); | |
551 | #endif | |
552 | /* handle CR0-7 protection */ | |
553 | if ((s->cr[VGA_CRTC_V_SYNC_END] & VGA_CR11_LOCK_CR0_CR7) && | |
554 | s->cr_index <= VGA_CRTC_OVERFLOW) { | |
555 | /* can always write bit 4 of CR7 */ | |
556 | if (s->cr_index == VGA_CRTC_OVERFLOW) { | |
557 | s->cr[VGA_CRTC_OVERFLOW] = (s->cr[VGA_CRTC_OVERFLOW] & ~0x10) | | |
558 | (val & 0x10); | |
559 | } | |
560 | return; | |
561 | } | |
562 | s->cr[s->cr_index] = val; | |
563 | ||
564 | switch(s->cr_index) { | |
565 | case VGA_CRTC_H_TOTAL: | |
566 | case VGA_CRTC_H_SYNC_START: | |
567 | case VGA_CRTC_H_SYNC_END: | |
568 | case VGA_CRTC_V_TOTAL: | |
569 | case VGA_CRTC_OVERFLOW: | |
570 | case VGA_CRTC_V_SYNC_END: | |
571 | case VGA_CRTC_MODE: | |
572 | s->update_retrace_info(s); | |
573 | break; | |
574 | } | |
575 | break; | |
576 | case VGA_IS1_RM: | |
577 | case VGA_IS1_RC: | |
578 | s->fcr = val & 0x10; | |
579 | break; | |
580 | } | |
581 | } | |
582 | ||
583 | static uint32_t vbe_ioport_read_index(void *opaque, uint32_t addr) | |
584 | { | |
585 | VGACommonState *s = opaque; | |
586 | uint32_t val; | |
587 | val = s->vbe_index; | |
588 | return val; | |
589 | } | |
590 | ||
591 | uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr) | |
592 | { | |
593 | VGACommonState *s = opaque; | |
594 | uint32_t val; | |
595 | ||
596 | if (s->vbe_index < VBE_DISPI_INDEX_NB) { | |
597 | if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_GETCAPS) { | |
598 | switch(s->vbe_index) { | |
599 | /* XXX: do not hardcode ? */ | |
600 | case VBE_DISPI_INDEX_XRES: | |
601 | val = VBE_DISPI_MAX_XRES; | |
602 | break; | |
603 | case VBE_DISPI_INDEX_YRES: | |
604 | val = VBE_DISPI_MAX_YRES; | |
605 | break; | |
606 | case VBE_DISPI_INDEX_BPP: | |
607 | val = VBE_DISPI_MAX_BPP; | |
608 | break; | |
609 | default: | |
610 | val = s->vbe_regs[s->vbe_index]; | |
611 | break; | |
612 | } | |
613 | } else { | |
614 | val = s->vbe_regs[s->vbe_index]; | |
615 | } | |
616 | } else if (s->vbe_index == VBE_DISPI_INDEX_VIDEO_MEMORY_64K) { | |
617 | val = s->vram_size / (64 * 1024); | |
618 | } else { | |
619 | val = 0; | |
620 | } | |
621 | #ifdef DEBUG_BOCHS_VBE | |
622 | printf("VBE: read index=0x%x val=0x%x\n", s->vbe_index, val); | |
623 | #endif | |
624 | return val; | |
625 | } | |
626 | ||
627 | void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val) | |
628 | { | |
629 | VGACommonState *s = opaque; | |
630 | s->vbe_index = val; | |
631 | } | |
632 | ||
633 | void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val) | |
634 | { | |
635 | VGACommonState *s = opaque; | |
636 | ||
637 | if (s->vbe_index <= VBE_DISPI_INDEX_NB) { | |
638 | #ifdef DEBUG_BOCHS_VBE | |
639 | printf("VBE: write index=0x%x val=0x%x\n", s->vbe_index, val); | |
640 | #endif | |
641 | switch(s->vbe_index) { | |
642 | case VBE_DISPI_INDEX_ID: | |
643 | if (val == VBE_DISPI_ID0 || | |
644 | val == VBE_DISPI_ID1 || | |
645 | val == VBE_DISPI_ID2 || | |
646 | val == VBE_DISPI_ID3 || | |
647 | val == VBE_DISPI_ID4) { | |
648 | s->vbe_regs[s->vbe_index] = val; | |
649 | } | |
650 | break; | |
651 | case VBE_DISPI_INDEX_XRES: | |
652 | if ((val <= VBE_DISPI_MAX_XRES) && ((val & 7) == 0)) { | |
653 | s->vbe_regs[s->vbe_index] = val; | |
654 | } | |
655 | break; | |
656 | case VBE_DISPI_INDEX_YRES: | |
657 | if (val <= VBE_DISPI_MAX_YRES) { | |
658 | s->vbe_regs[s->vbe_index] = val; | |
659 | } | |
660 | break; | |
661 | case VBE_DISPI_INDEX_BPP: | |
662 | if (val == 0) | |
663 | val = 8; | |
664 | if (val == 4 || val == 8 || val == 15 || | |
665 | val == 16 || val == 24 || val == 32) { | |
666 | s->vbe_regs[s->vbe_index] = val; | |
667 | } | |
668 | break; | |
669 | case VBE_DISPI_INDEX_BANK: | |
670 | if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) { | |
671 | val &= (s->vbe_bank_mask >> 2); | |
672 | } else { | |
673 | val &= s->vbe_bank_mask; | |
674 | } | |
675 | s->vbe_regs[s->vbe_index] = val; | |
676 | s->bank_offset = (val << 16); | |
677 | vga_update_memory_access(s); | |
678 | break; | |
679 | case VBE_DISPI_INDEX_ENABLE: | |
680 | if ((val & VBE_DISPI_ENABLED) && | |
681 | !(s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED)) { | |
682 | int h, shift_control; | |
683 | ||
684 | s->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH] = | |
685 | s->vbe_regs[VBE_DISPI_INDEX_XRES]; | |
686 | s->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] = | |
687 | s->vbe_regs[VBE_DISPI_INDEX_YRES]; | |
688 | s->vbe_regs[VBE_DISPI_INDEX_X_OFFSET] = 0; | |
689 | s->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET] = 0; | |
690 | ||
691 | if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) | |
692 | s->vbe_line_offset = s->vbe_regs[VBE_DISPI_INDEX_XRES] >> 1; | |
693 | else | |
694 | s->vbe_line_offset = s->vbe_regs[VBE_DISPI_INDEX_XRES] * | |
695 | ((s->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3); | |
696 | s->vbe_start_addr = 0; | |
697 | ||
698 | /* clear the screen (should be done in BIOS) */ | |
699 | if (!(val & VBE_DISPI_NOCLEARMEM)) { | |
700 | memset(s->vram_ptr, 0, | |
701 | s->vbe_regs[VBE_DISPI_INDEX_YRES] * s->vbe_line_offset); | |
702 | } | |
703 | ||
704 | /* we initialize the VGA graphic mode (should be done | |
705 | in BIOS) */ | |
706 | /* graphic mode + memory map 1 */ | |
707 | s->gr[VGA_GFX_MISC] = (s->gr[VGA_GFX_MISC] & ~0x0c) | 0x04 | | |
708 | VGA_GR06_GRAPHICS_MODE; | |
709 | s->cr[VGA_CRTC_MODE] |= 3; /* no CGA modes */ | |
710 | s->cr[VGA_CRTC_OFFSET] = s->vbe_line_offset >> 3; | |
711 | /* width */ | |
712 | s->cr[VGA_CRTC_H_DISP] = | |
713 | (s->vbe_regs[VBE_DISPI_INDEX_XRES] >> 3) - 1; | |
714 | /* height (only meaningful if < 1024) */ | |
715 | h = s->vbe_regs[VBE_DISPI_INDEX_YRES] - 1; | |
716 | s->cr[VGA_CRTC_V_DISP_END] = h; | |
717 | s->cr[VGA_CRTC_OVERFLOW] = (s->cr[VGA_CRTC_OVERFLOW] & ~0x42) | | |
718 | ((h >> 7) & 0x02) | ((h >> 3) & 0x40); | |
719 | /* line compare to 1023 */ | |
720 | s->cr[VGA_CRTC_LINE_COMPARE] = 0xff; | |
721 | s->cr[VGA_CRTC_OVERFLOW] |= 0x10; | |
722 | s->cr[VGA_CRTC_MAX_SCAN] |= 0x40; | |
723 | ||
724 | if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) { | |
725 | shift_control = 0; | |
726 | s->sr[VGA_SEQ_CLOCK_MODE] &= ~8; /* no double line */ | |
727 | } else { | |
728 | shift_control = 2; | |
729 | /* set chain 4 mode */ | |
730 | s->sr[VGA_SEQ_MEMORY_MODE] |= VGA_SR04_CHN_4M; | |
731 | /* activate all planes */ | |
732 | s->sr[VGA_SEQ_PLANE_WRITE] |= VGA_SR02_ALL_PLANES; | |
733 | } | |
734 | s->gr[VGA_GFX_MODE] = (s->gr[VGA_GFX_MODE] & ~0x60) | | |
735 | (shift_control << 5); | |
736 | s->cr[VGA_CRTC_MAX_SCAN] &= ~0x9f; /* no double scan */ | |
737 | } else { | |
738 | /* XXX: the bios should do that */ | |
739 | s->bank_offset = 0; | |
740 | } | |
741 | s->dac_8bit = (val & VBE_DISPI_8BIT_DAC) > 0; | |
742 | s->vbe_regs[s->vbe_index] = val; | |
743 | vga_update_memory_access(s); | |
744 | break; | |
745 | case VBE_DISPI_INDEX_VIRT_WIDTH: | |
746 | { | |
747 | int w, h, line_offset; | |
748 | ||
749 | if (val < s->vbe_regs[VBE_DISPI_INDEX_XRES]) | |
750 | return; | |
751 | w = val; | |
752 | if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) | |
753 | line_offset = w >> 1; | |
754 | else | |
755 | line_offset = w * ((s->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3); | |
756 | h = s->vram_size / line_offset; | |
757 | /* XXX: support weird bochs semantics ? */ | |
758 | if (h < s->vbe_regs[VBE_DISPI_INDEX_YRES]) | |
759 | return; | |
760 | s->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH] = w; | |
761 | s->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] = h; | |
762 | s->vbe_line_offset = line_offset; | |
763 | } | |
764 | break; | |
765 | case VBE_DISPI_INDEX_X_OFFSET: | |
766 | case VBE_DISPI_INDEX_Y_OFFSET: | |
767 | { | |
768 | int x; | |
769 | s->vbe_regs[s->vbe_index] = val; | |
770 | s->vbe_start_addr = s->vbe_line_offset * s->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET]; | |
771 | x = s->vbe_regs[VBE_DISPI_INDEX_X_OFFSET]; | |
772 | if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) | |
773 | s->vbe_start_addr += x >> 1; | |
774 | else | |
775 | s->vbe_start_addr += x * ((s->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3); | |
776 | s->vbe_start_addr >>= 2; | |
777 | } | |
778 | break; | |
779 | default: | |
780 | break; | |
781 | } | |
782 | } | |
783 | } | |
784 | ||
785 | /* called for accesses between 0xa0000 and 0xc0000 */ | |
786 | uint32_t vga_mem_readb(VGACommonState *s, hwaddr addr) | |
787 | { | |
788 | int memory_map_mode, plane; | |
789 | uint32_t ret; | |
790 | ||
791 | /* convert to VGA memory offset */ | |
792 | memory_map_mode = (s->gr[VGA_GFX_MISC] >> 2) & 3; | |
793 | addr &= 0x1ffff; | |
794 | switch(memory_map_mode) { | |
795 | case 0: | |
796 | break; | |
797 | case 1: | |
798 | if (addr >= 0x10000) | |
799 | return 0xff; | |
800 | addr += s->bank_offset; | |
801 | break; | |
802 | case 2: | |
803 | addr -= 0x10000; | |
804 | if (addr >= 0x8000) | |
805 | return 0xff; | |
806 | break; | |
807 | default: | |
808 | case 3: | |
809 | addr -= 0x18000; | |
810 | if (addr >= 0x8000) | |
811 | return 0xff; | |
812 | break; | |
813 | } | |
814 | ||
815 | if (s->sr[VGA_SEQ_MEMORY_MODE] & VGA_SR04_CHN_4M) { | |
816 | /* chain 4 mode : simplest access */ | |
817 | ret = s->vram_ptr[addr]; | |
818 | } else if (s->gr[VGA_GFX_MODE] & 0x10) { | |
819 | /* odd/even mode (aka text mode mapping) */ | |
820 | plane = (s->gr[VGA_GFX_PLANE_READ] & 2) | (addr & 1); | |
821 | ret = s->vram_ptr[((addr & ~1) << 1) | plane]; | |
822 | } else { | |
823 | /* standard VGA latched access */ | |
824 | s->latch = ((uint32_t *)s->vram_ptr)[addr]; | |
825 | ||
826 | if (!(s->gr[VGA_GFX_MODE] & 0x08)) { | |
827 | /* read mode 0 */ | |
828 | plane = s->gr[VGA_GFX_PLANE_READ]; | |
829 | ret = GET_PLANE(s->latch, plane); | |
830 | } else { | |
831 | /* read mode 1 */ | |
832 | ret = (s->latch ^ mask16[s->gr[VGA_GFX_COMPARE_VALUE]]) & | |
833 | mask16[s->gr[VGA_GFX_COMPARE_MASK]]; | |
834 | ret |= ret >> 16; | |
835 | ret |= ret >> 8; | |
836 | ret = (~ret) & 0xff; | |
837 | } | |
838 | } | |
839 | return ret; | |
840 | } | |
841 | ||
842 | /* called for accesses between 0xa0000 and 0xc0000 */ | |
843 | void vga_mem_writeb(VGACommonState *s, hwaddr addr, uint32_t val) | |
844 | { | |
845 | int memory_map_mode, plane, write_mode, b, func_select, mask; | |
846 | uint32_t write_mask, bit_mask, set_mask; | |
847 | ||
848 | #ifdef DEBUG_VGA_MEM | |
849 | printf("vga: [0x" TARGET_FMT_plx "] = 0x%02x\n", addr, val); | |
850 | #endif | |
851 | /* convert to VGA memory offset */ | |
852 | memory_map_mode = (s->gr[VGA_GFX_MISC] >> 2) & 3; | |
853 | addr &= 0x1ffff; | |
854 | switch(memory_map_mode) { | |
855 | case 0: | |
856 | break; | |
857 | case 1: | |
858 | if (addr >= 0x10000) | |
859 | return; | |
860 | addr += s->bank_offset; | |
861 | break; | |
862 | case 2: | |
863 | addr -= 0x10000; | |
864 | if (addr >= 0x8000) | |
865 | return; | |
866 | break; | |
867 | default: | |
868 | case 3: | |
869 | addr -= 0x18000; | |
870 | if (addr >= 0x8000) | |
871 | return; | |
872 | break; | |
873 | } | |
874 | ||
875 | if (s->sr[VGA_SEQ_MEMORY_MODE] & VGA_SR04_CHN_4M) { | |
876 | /* chain 4 mode : simplest access */ | |
877 | plane = addr & 3; | |
878 | mask = (1 << plane); | |
879 | if (s->sr[VGA_SEQ_PLANE_WRITE] & mask) { | |
880 | s->vram_ptr[addr] = val; | |
881 | #ifdef DEBUG_VGA_MEM | |
882 | printf("vga: chain4: [0x" TARGET_FMT_plx "]\n", addr); | |
883 | #endif | |
884 | s->plane_updated |= mask; /* only used to detect font change */ | |
885 | memory_region_set_dirty(&s->vram, addr, 1); | |
886 | } | |
887 | } else if (s->gr[VGA_GFX_MODE] & 0x10) { | |
888 | /* odd/even mode (aka text mode mapping) */ | |
889 | plane = (s->gr[VGA_GFX_PLANE_READ] & 2) | (addr & 1); | |
890 | mask = (1 << plane); | |
891 | if (s->sr[VGA_SEQ_PLANE_WRITE] & mask) { | |
892 | addr = ((addr & ~1) << 1) | plane; | |
893 | s->vram_ptr[addr] = val; | |
894 | #ifdef DEBUG_VGA_MEM | |
895 | printf("vga: odd/even: [0x" TARGET_FMT_plx "]\n", addr); | |
896 | #endif | |
897 | s->plane_updated |= mask; /* only used to detect font change */ | |
898 | memory_region_set_dirty(&s->vram, addr, 1); | |
899 | } | |
900 | } else { | |
901 | /* standard VGA latched access */ | |
902 | write_mode = s->gr[VGA_GFX_MODE] & 3; | |
903 | switch(write_mode) { | |
904 | default: | |
905 | case 0: | |
906 | /* rotate */ | |
907 | b = s->gr[VGA_GFX_DATA_ROTATE] & 7; | |
908 | val = ((val >> b) | (val << (8 - b))) & 0xff; | |
909 | val |= val << 8; | |
910 | val |= val << 16; | |
911 | ||
912 | /* apply set/reset mask */ | |
913 | set_mask = mask16[s->gr[VGA_GFX_SR_ENABLE]]; | |
914 | val = (val & ~set_mask) | | |
915 | (mask16[s->gr[VGA_GFX_SR_VALUE]] & set_mask); | |
916 | bit_mask = s->gr[VGA_GFX_BIT_MASK]; | |
917 | break; | |
918 | case 1: | |
919 | val = s->latch; | |
920 | goto do_write; | |
921 | case 2: | |
922 | val = mask16[val & 0x0f]; | |
923 | bit_mask = s->gr[VGA_GFX_BIT_MASK]; | |
924 | break; | |
925 | case 3: | |
926 | /* rotate */ | |
927 | b = s->gr[VGA_GFX_DATA_ROTATE] & 7; | |
928 | val = (val >> b) | (val << (8 - b)); | |
929 | ||
930 | bit_mask = s->gr[VGA_GFX_BIT_MASK] & val; | |
931 | val = mask16[s->gr[VGA_GFX_SR_VALUE]]; | |
932 | break; | |
933 | } | |
934 | ||
935 | /* apply logical operation */ | |
936 | func_select = s->gr[VGA_GFX_DATA_ROTATE] >> 3; | |
937 | switch(func_select) { | |
938 | case 0: | |
939 | default: | |
940 | /* nothing to do */ | |
941 | break; | |
942 | case 1: | |
943 | /* and */ | |
944 | val &= s->latch; | |
945 | break; | |
946 | case 2: | |
947 | /* or */ | |
948 | val |= s->latch; | |
949 | break; | |
950 | case 3: | |
951 | /* xor */ | |
952 | val ^= s->latch; | |
953 | break; | |
954 | } | |
955 | ||
956 | /* apply bit mask */ | |
957 | bit_mask |= bit_mask << 8; | |
958 | bit_mask |= bit_mask << 16; | |
959 | val = (val & bit_mask) | (s->latch & ~bit_mask); | |
960 | ||
961 | do_write: | |
962 | /* mask data according to sr[2] */ | |
963 | mask = s->sr[VGA_SEQ_PLANE_WRITE]; | |
964 | s->plane_updated |= mask; /* only used to detect font change */ | |
965 | write_mask = mask16[mask]; | |
966 | ((uint32_t *)s->vram_ptr)[addr] = | |
967 | (((uint32_t *)s->vram_ptr)[addr] & ~write_mask) | | |
968 | (val & write_mask); | |
969 | #ifdef DEBUG_VGA_MEM | |
970 | printf("vga: latch: [0x" TARGET_FMT_plx "] mask=0x%08x val=0x%08x\n", | |
971 | addr * 4, write_mask, val); | |
972 | #endif | |
973 | memory_region_set_dirty(&s->vram, addr << 2, sizeof(uint32_t)); | |
974 | } | |
975 | } | |
976 | ||
977 | typedef void vga_draw_glyph8_func(uint8_t *d, int linesize, | |
978 | const uint8_t *font_ptr, int h, | |
979 | uint32_t fgcol, uint32_t bgcol); | |
980 | typedef void vga_draw_glyph9_func(uint8_t *d, int linesize, | |
981 | const uint8_t *font_ptr, int h, | |
982 | uint32_t fgcol, uint32_t bgcol, int dup9); | |
983 | typedef void vga_draw_line_func(VGACommonState *s1, uint8_t *d, | |
984 | const uint8_t *s, int width); | |
985 | ||
986 | #define DEPTH 8 | |
987 | #include "vga_template.h" | |
988 | ||
989 | #define DEPTH 15 | |
990 | #include "vga_template.h" | |
991 | ||
992 | #define BGR_FORMAT | |
993 | #define DEPTH 15 | |
994 | #include "vga_template.h" | |
995 | ||
996 | #define DEPTH 16 | |
997 | #include "vga_template.h" | |
998 | ||
999 | #define BGR_FORMAT | |
1000 | #define DEPTH 16 | |
1001 | #include "vga_template.h" | |
1002 | ||
1003 | #define DEPTH 32 | |
1004 | #include "vga_template.h" | |
1005 | ||
1006 | #define BGR_FORMAT | |
1007 | #define DEPTH 32 | |
1008 | #include "vga_template.h" | |
1009 | ||
1010 | static unsigned int rgb_to_pixel8_dup(unsigned int r, unsigned int g, unsigned b) | |
1011 | { | |
1012 | unsigned int col; | |
1013 | col = rgb_to_pixel8(r, g, b); | |
1014 | col |= col << 8; | |
1015 | col |= col << 16; | |
1016 | return col; | |
1017 | } | |
1018 | ||
1019 | static unsigned int rgb_to_pixel15_dup(unsigned int r, unsigned int g, unsigned b) | |
1020 | { | |
1021 | unsigned int col; | |
1022 | col = rgb_to_pixel15(r, g, b); | |
1023 | col |= col << 16; | |
1024 | return col; | |
1025 | } | |
1026 | ||
1027 | static unsigned int rgb_to_pixel15bgr_dup(unsigned int r, unsigned int g, | |
1028 | unsigned int b) | |
1029 | { | |
1030 | unsigned int col; | |
1031 | col = rgb_to_pixel15bgr(r, g, b); | |
1032 | col |= col << 16; | |
1033 | return col; | |
1034 | } | |
1035 | ||
1036 | static unsigned int rgb_to_pixel16_dup(unsigned int r, unsigned int g, unsigned b) | |
1037 | { | |
1038 | unsigned int col; | |
1039 | col = rgb_to_pixel16(r, g, b); | |
1040 | col |= col << 16; | |
1041 | return col; | |
1042 | } | |
1043 | ||
1044 | static unsigned int rgb_to_pixel16bgr_dup(unsigned int r, unsigned int g, | |
1045 | unsigned int b) | |
1046 | { | |
1047 | unsigned int col; | |
1048 | col = rgb_to_pixel16bgr(r, g, b); | |
1049 | col |= col << 16; | |
1050 | return col; | |
1051 | } | |
1052 | ||
1053 | static unsigned int rgb_to_pixel32_dup(unsigned int r, unsigned int g, unsigned b) | |
1054 | { | |
1055 | unsigned int col; | |
1056 | col = rgb_to_pixel32(r, g, b); | |
1057 | return col; | |
1058 | } | |
1059 | ||
1060 | static unsigned int rgb_to_pixel32bgr_dup(unsigned int r, unsigned int g, unsigned b) | |
1061 | { | |
1062 | unsigned int col; | |
1063 | col = rgb_to_pixel32bgr(r, g, b); | |
1064 | return col; | |
1065 | } | |
1066 | ||
1067 | /* return true if the palette was modified */ | |
1068 | static int update_palette16(VGACommonState *s) | |
1069 | { | |
1070 | int full_update, i; | |
1071 | uint32_t v, col, *palette; | |
1072 | ||
1073 | full_update = 0; | |
1074 | palette = s->last_palette; | |
1075 | for(i = 0; i < 16; i++) { | |
1076 | v = s->ar[i]; | |
1077 | if (s->ar[VGA_ATC_MODE] & 0x80) { | |
1078 | v = ((s->ar[VGA_ATC_COLOR_PAGE] & 0xf) << 4) | (v & 0xf); | |
1079 | } else { | |
1080 | v = ((s->ar[VGA_ATC_COLOR_PAGE] & 0xc) << 4) | (v & 0x3f); | |
1081 | } | |
1082 | v = v * 3; | |
1083 | col = s->rgb_to_pixel(c6_to_8(s->palette[v]), | |
1084 | c6_to_8(s->palette[v + 1]), | |
1085 | c6_to_8(s->palette[v + 2])); | |
1086 | if (col != palette[i]) { | |
1087 | full_update = 1; | |
1088 | palette[i] = col; | |
1089 | } | |
1090 | } | |
1091 | return full_update; | |
1092 | } | |
1093 | ||
1094 | /* return true if the palette was modified */ | |
1095 | static int update_palette256(VGACommonState *s) | |
1096 | { | |
1097 | int full_update, i; | |
1098 | uint32_t v, col, *palette; | |
1099 | ||
1100 | full_update = 0; | |
1101 | palette = s->last_palette; | |
1102 | v = 0; | |
1103 | for(i = 0; i < 256; i++) { | |
1104 | if (s->dac_8bit) { | |
1105 | col = s->rgb_to_pixel(s->palette[v], | |
1106 | s->palette[v + 1], | |
1107 | s->palette[v + 2]); | |
1108 | } else { | |
1109 | col = s->rgb_to_pixel(c6_to_8(s->palette[v]), | |
1110 | c6_to_8(s->palette[v + 1]), | |
1111 | c6_to_8(s->palette[v + 2])); | |
1112 | } | |
1113 | if (col != palette[i]) { | |
1114 | full_update = 1; | |
1115 | palette[i] = col; | |
1116 | } | |
1117 | v += 3; | |
1118 | } | |
1119 | return full_update; | |
1120 | } | |
1121 | ||
1122 | static void vga_get_offsets(VGACommonState *s, | |
1123 | uint32_t *pline_offset, | |
1124 | uint32_t *pstart_addr, | |
1125 | uint32_t *pline_compare) | |
1126 | { | |
1127 | uint32_t start_addr, line_offset, line_compare; | |
1128 | ||
1129 | if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) { | |
1130 | line_offset = s->vbe_line_offset; | |
1131 | start_addr = s->vbe_start_addr; | |
1132 | line_compare = 65535; | |
1133 | } else { | |
1134 | /* compute line_offset in bytes */ | |
1135 | line_offset = s->cr[VGA_CRTC_OFFSET]; | |
1136 | line_offset <<= 3; | |
1137 | ||
1138 | /* starting address */ | |
1139 | start_addr = s->cr[VGA_CRTC_START_LO] | | |
1140 | (s->cr[VGA_CRTC_START_HI] << 8); | |
1141 | ||
1142 | /* line compare */ | |
1143 | line_compare = s->cr[VGA_CRTC_LINE_COMPARE] | | |
1144 | ((s->cr[VGA_CRTC_OVERFLOW] & 0x10) << 4) | | |
1145 | ((s->cr[VGA_CRTC_MAX_SCAN] & 0x40) << 3); | |
1146 | } | |
1147 | *pline_offset = line_offset; | |
1148 | *pstart_addr = start_addr; | |
1149 | *pline_compare = line_compare; | |
1150 | } | |
1151 | ||
1152 | /* update start_addr and line_offset. Return TRUE if modified */ | |
1153 | static int update_basic_params(VGACommonState *s) | |
1154 | { | |
1155 | int full_update; | |
1156 | uint32_t start_addr, line_offset, line_compare; | |
1157 | ||
1158 | full_update = 0; | |
1159 | ||
1160 | s->get_offsets(s, &line_offset, &start_addr, &line_compare); | |
1161 | ||
1162 | if (line_offset != s->line_offset || | |
1163 | start_addr != s->start_addr || | |
1164 | line_compare != s->line_compare) { | |
1165 | s->line_offset = line_offset; | |
1166 | s->start_addr = start_addr; | |
1167 | s->line_compare = line_compare; | |
1168 | full_update = 1; | |
1169 | } | |
1170 | return full_update; | |
1171 | } | |
1172 | ||
1173 | #define NB_DEPTHS 7 | |
1174 | ||
1175 | static inline int get_depth_index(DisplaySurface *s) | |
1176 | { | |
1177 | switch (surface_bits_per_pixel(s)) { | |
1178 | default: | |
1179 | case 8: | |
1180 | return 0; | |
1181 | case 15: | |
1182 | return 1; | |
1183 | case 16: | |
1184 | return 2; | |
1185 | case 32: | |
1186 | if (is_surface_bgr(s)) { | |
1187 | return 4; | |
1188 | } else { | |
1189 | return 3; | |
1190 | } | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | static vga_draw_glyph8_func * const vga_draw_glyph8_table[NB_DEPTHS] = { | |
1195 | vga_draw_glyph8_8, | |
1196 | vga_draw_glyph8_16, | |
1197 | vga_draw_glyph8_16, | |
1198 | vga_draw_glyph8_32, | |
1199 | vga_draw_glyph8_32, | |
1200 | vga_draw_glyph8_16, | |
1201 | vga_draw_glyph8_16, | |
1202 | }; | |
1203 | ||
1204 | static vga_draw_glyph8_func * const vga_draw_glyph16_table[NB_DEPTHS] = { | |
1205 | vga_draw_glyph16_8, | |
1206 | vga_draw_glyph16_16, | |
1207 | vga_draw_glyph16_16, | |
1208 | vga_draw_glyph16_32, | |
1209 | vga_draw_glyph16_32, | |
1210 | vga_draw_glyph16_16, | |
1211 | vga_draw_glyph16_16, | |
1212 | }; | |
1213 | ||
1214 | static vga_draw_glyph9_func * const vga_draw_glyph9_table[NB_DEPTHS] = { | |
1215 | vga_draw_glyph9_8, | |
1216 | vga_draw_glyph9_16, | |
1217 | vga_draw_glyph9_16, | |
1218 | vga_draw_glyph9_32, | |
1219 | vga_draw_glyph9_32, | |
1220 | vga_draw_glyph9_16, | |
1221 | vga_draw_glyph9_16, | |
1222 | }; | |
1223 | ||
1224 | static const uint8_t cursor_glyph[32 * 4] = { | |
1225 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1226 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1227 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1228 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1229 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1230 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1231 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1232 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1233 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1234 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1235 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1236 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1237 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1238 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1239 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1240 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
1241 | }; | |
1242 | ||
1243 | static void vga_get_text_resolution(VGACommonState *s, int *pwidth, int *pheight, | |
1244 | int *pcwidth, int *pcheight) | |
1245 | { | |
1246 | int width, cwidth, height, cheight; | |
1247 | ||
1248 | /* total width & height */ | |
1249 | cheight = (s->cr[VGA_CRTC_MAX_SCAN] & 0x1f) + 1; | |
1250 | cwidth = 8; | |
1251 | if (!(s->sr[VGA_SEQ_CLOCK_MODE] & VGA_SR01_CHAR_CLK_8DOTS)) { | |
1252 | cwidth = 9; | |
1253 | } | |
1254 | if (s->sr[VGA_SEQ_CLOCK_MODE] & 0x08) { | |
1255 | cwidth = 16; /* NOTE: no 18 pixel wide */ | |
1256 | } | |
1257 | width = (s->cr[VGA_CRTC_H_DISP] + 1); | |
1258 | if (s->cr[VGA_CRTC_V_TOTAL] == 100) { | |
1259 | /* ugly hack for CGA 160x100x16 - explain me the logic */ | |
1260 | height = 100; | |
1261 | } else { | |
1262 | height = s->cr[VGA_CRTC_V_DISP_END] | | |
1263 | ((s->cr[VGA_CRTC_OVERFLOW] & 0x02) << 7) | | |
1264 | ((s->cr[VGA_CRTC_OVERFLOW] & 0x40) << 3); | |
1265 | height = (height + 1) / cheight; | |
1266 | } | |
1267 | ||
1268 | *pwidth = width; | |
1269 | *pheight = height; | |
1270 | *pcwidth = cwidth; | |
1271 | *pcheight = cheight; | |
1272 | } | |
1273 | ||
1274 | typedef unsigned int rgb_to_pixel_dup_func(unsigned int r, unsigned int g, unsigned b); | |
1275 | ||
1276 | static rgb_to_pixel_dup_func * const rgb_to_pixel_dup_table[NB_DEPTHS] = { | |
1277 | rgb_to_pixel8_dup, | |
1278 | rgb_to_pixel15_dup, | |
1279 | rgb_to_pixel16_dup, | |
1280 | rgb_to_pixel32_dup, | |
1281 | rgb_to_pixel32bgr_dup, | |
1282 | rgb_to_pixel15bgr_dup, | |
1283 | rgb_to_pixel16bgr_dup, | |
1284 | }; | |
1285 | ||
1286 | /* | |
1287 | * Text mode update | |
1288 | * Missing: | |
1289 | * - double scan | |
1290 | * - double width | |
1291 | * - underline | |
1292 | * - flashing | |
1293 | */ | |
1294 | static void vga_draw_text(VGACommonState *s, int full_update) | |
1295 | { | |
1296 | DisplaySurface *surface = qemu_console_surface(s->con); | |
1297 | int cx, cy, cheight, cw, ch, cattr, height, width, ch_attr; | |
1298 | int cx_min, cx_max, linesize, x_incr, line, line1; | |
1299 | uint32_t offset, fgcol, bgcol, v, cursor_offset; | |
1300 | uint8_t *d1, *d, *src, *dest, *cursor_ptr; | |
1301 | const uint8_t *font_ptr, *font_base[2]; | |
1302 | int dup9, line_offset, depth_index; | |
1303 | uint32_t *palette; | |
1304 | uint32_t *ch_attr_ptr; | |
1305 | vga_draw_glyph8_func *vga_draw_glyph8; | |
1306 | vga_draw_glyph9_func *vga_draw_glyph9; | |
1307 | int64_t now = qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL); | |
1308 | ||
1309 | /* compute font data address (in plane 2) */ | |
1310 | v = s->sr[VGA_SEQ_CHARACTER_MAP]; | |
1311 | offset = (((v >> 4) & 1) | ((v << 1) & 6)) * 8192 * 4 + 2; | |
1312 | if (offset != s->font_offsets[0]) { | |
1313 | s->font_offsets[0] = offset; | |
1314 | full_update = 1; | |
1315 | } | |
1316 | font_base[0] = s->vram_ptr + offset; | |
1317 | ||
1318 | offset = (((v >> 5) & 1) | ((v >> 1) & 6)) * 8192 * 4 + 2; | |
1319 | font_base[1] = s->vram_ptr + offset; | |
1320 | if (offset != s->font_offsets[1]) { | |
1321 | s->font_offsets[1] = offset; | |
1322 | full_update = 1; | |
1323 | } | |
1324 | if (s->plane_updated & (1 << 2) || s->chain4_alias) { | |
1325 | /* if the plane 2 was modified since the last display, it | |
1326 | indicates the font may have been modified */ | |
1327 | s->plane_updated = 0; | |
1328 | full_update = 1; | |
1329 | } | |
1330 | full_update |= update_basic_params(s); | |
1331 | ||
1332 | line_offset = s->line_offset; | |
1333 | ||
1334 | vga_get_text_resolution(s, &width, &height, &cw, &cheight); | |
1335 | if ((height * width) <= 1) { | |
1336 | /* better than nothing: exit if transient size is too small */ | |
1337 | return; | |
1338 | } | |
1339 | if ((height * width) > CH_ATTR_SIZE) { | |
1340 | /* better than nothing: exit if transient size is too big */ | |
1341 | return; | |
1342 | } | |
1343 | ||
1344 | if (width != s->last_width || height != s->last_height || | |
1345 | cw != s->last_cw || cheight != s->last_ch || s->last_depth) { | |
1346 | s->last_scr_width = width * cw; | |
1347 | s->last_scr_height = height * cheight; | |
1348 | qemu_console_resize(s->con, s->last_scr_width, s->last_scr_height); | |
1349 | surface = qemu_console_surface(s->con); | |
1350 | dpy_text_resize(s->con, width, height); | |
1351 | s->last_depth = 0; | |
1352 | s->last_width = width; | |
1353 | s->last_height = height; | |
1354 | s->last_ch = cheight; | |
1355 | s->last_cw = cw; | |
1356 | full_update = 1; | |
1357 | } | |
1358 | s->rgb_to_pixel = | |
1359 | rgb_to_pixel_dup_table[get_depth_index(surface)]; | |
1360 | full_update |= update_palette16(s); | |
1361 | palette = s->last_palette; | |
1362 | x_incr = cw * surface_bytes_per_pixel(surface); | |
1363 | ||
1364 | if (full_update) { | |
1365 | s->full_update_text = 1; | |
1366 | } | |
1367 | if (s->full_update_gfx) { | |
1368 | s->full_update_gfx = 0; | |
1369 | full_update |= 1; | |
1370 | } | |
1371 | ||
1372 | cursor_offset = ((s->cr[VGA_CRTC_CURSOR_HI] << 8) | | |
1373 | s->cr[VGA_CRTC_CURSOR_LO]) - s->start_addr; | |
1374 | if (cursor_offset != s->cursor_offset || | |
1375 | s->cr[VGA_CRTC_CURSOR_START] != s->cursor_start || | |
1376 | s->cr[VGA_CRTC_CURSOR_END] != s->cursor_end) { | |
1377 | /* if the cursor position changed, we update the old and new | |
1378 | chars */ | |
1379 | if (s->cursor_offset < CH_ATTR_SIZE) | |
1380 | s->last_ch_attr[s->cursor_offset] = -1; | |
1381 | if (cursor_offset < CH_ATTR_SIZE) | |
1382 | s->last_ch_attr[cursor_offset] = -1; | |
1383 | s->cursor_offset = cursor_offset; | |
1384 | s->cursor_start = s->cr[VGA_CRTC_CURSOR_START]; | |
1385 | s->cursor_end = s->cr[VGA_CRTC_CURSOR_END]; | |
1386 | } | |
1387 | cursor_ptr = s->vram_ptr + (s->start_addr + cursor_offset) * 4; | |
1388 | if (now >= s->cursor_blink_time) { | |
1389 | s->cursor_blink_time = now + VGA_TEXT_CURSOR_PERIOD_MS / 2; | |
1390 | s->cursor_visible_phase = !s->cursor_visible_phase; | |
1391 | } | |
1392 | ||
1393 | depth_index = get_depth_index(surface); | |
1394 | if (cw == 16) | |
1395 | vga_draw_glyph8 = vga_draw_glyph16_table[depth_index]; | |
1396 | else | |
1397 | vga_draw_glyph8 = vga_draw_glyph8_table[depth_index]; | |
1398 | vga_draw_glyph9 = vga_draw_glyph9_table[depth_index]; | |
1399 | ||
1400 | dest = surface_data(surface); | |
1401 | linesize = surface_stride(surface); | |
1402 | ch_attr_ptr = s->last_ch_attr; | |
1403 | line = 0; | |
1404 | offset = s->start_addr * 4; | |
1405 | for(cy = 0; cy < height; cy++) { | |
1406 | d1 = dest; | |
1407 | src = s->vram_ptr + offset; | |
1408 | cx_min = width; | |
1409 | cx_max = -1; | |
1410 | for(cx = 0; cx < width; cx++) { | |
1411 | ch_attr = *(uint16_t *)src; | |
1412 | if (full_update || ch_attr != *ch_attr_ptr || src == cursor_ptr) { | |
1413 | if (cx < cx_min) | |
1414 | cx_min = cx; | |
1415 | if (cx > cx_max) | |
1416 | cx_max = cx; | |
1417 | *ch_attr_ptr = ch_attr; | |
1418 | #ifdef HOST_WORDS_BIGENDIAN | |
1419 | ch = ch_attr >> 8; | |
1420 | cattr = ch_attr & 0xff; | |
1421 | #else | |
1422 | ch = ch_attr & 0xff; | |
1423 | cattr = ch_attr >> 8; | |
1424 | #endif | |
1425 | font_ptr = font_base[(cattr >> 3) & 1]; | |
1426 | font_ptr += 32 * 4 * ch; | |
1427 | bgcol = palette[cattr >> 4]; | |
1428 | fgcol = palette[cattr & 0x0f]; | |
1429 | if (cw != 9) { | |
1430 | vga_draw_glyph8(d1, linesize, | |
1431 | font_ptr, cheight, fgcol, bgcol); | |
1432 | } else { | |
1433 | dup9 = 0; | |
1434 | if (ch >= 0xb0 && ch <= 0xdf && | |
1435 | (s->ar[VGA_ATC_MODE] & 0x04)) { | |
1436 | dup9 = 1; | |
1437 | } | |
1438 | vga_draw_glyph9(d1, linesize, | |
1439 | font_ptr, cheight, fgcol, bgcol, dup9); | |
1440 | } | |
1441 | if (src == cursor_ptr && | |
1442 | !(s->cr[VGA_CRTC_CURSOR_START] & 0x20) && | |
1443 | s->cursor_visible_phase) { | |
1444 | int line_start, line_last, h; | |
1445 | /* draw the cursor */ | |
1446 | line_start = s->cr[VGA_CRTC_CURSOR_START] & 0x1f; | |
1447 | line_last = s->cr[VGA_CRTC_CURSOR_END] & 0x1f; | |
1448 | /* XXX: check that */ | |
1449 | if (line_last > cheight - 1) | |
1450 | line_last = cheight - 1; | |
1451 | if (line_last >= line_start && line_start < cheight) { | |
1452 | h = line_last - line_start + 1; | |
1453 | d = d1 + linesize * line_start; | |
1454 | if (cw != 9) { | |
1455 | vga_draw_glyph8(d, linesize, | |
1456 | cursor_glyph, h, fgcol, bgcol); | |
1457 | } else { | |
1458 | vga_draw_glyph9(d, linesize, | |
1459 | cursor_glyph, h, fgcol, bgcol, 1); | |
1460 | } | |
1461 | } | |
1462 | } | |
1463 | } | |
1464 | d1 += x_incr; | |
1465 | src += 4; | |
1466 | ch_attr_ptr++; | |
1467 | } | |
1468 | if (cx_max != -1) { | |
1469 | dpy_gfx_update(s->con, cx_min * cw, cy * cheight, | |
1470 | (cx_max - cx_min + 1) * cw, cheight); | |
1471 | } | |
1472 | dest += linesize * cheight; | |
1473 | line1 = line + cheight; | |
1474 | offset += line_offset; | |
1475 | if (line < s->line_compare && line1 >= s->line_compare) { | |
1476 | offset = 0; | |
1477 | } | |
1478 | line = line1; | |
1479 | } | |
1480 | } | |
1481 | ||
1482 | enum { | |
1483 | VGA_DRAW_LINE2, | |
1484 | VGA_DRAW_LINE2D2, | |
1485 | VGA_DRAW_LINE4, | |
1486 | VGA_DRAW_LINE4D2, | |
1487 | VGA_DRAW_LINE8D2, | |
1488 | VGA_DRAW_LINE8, | |
1489 | VGA_DRAW_LINE15, | |
1490 | VGA_DRAW_LINE16, | |
1491 | VGA_DRAW_LINE24, | |
1492 | VGA_DRAW_LINE32, | |
1493 | VGA_DRAW_LINE_NB, | |
1494 | }; | |
1495 | ||
1496 | static vga_draw_line_func * const vga_draw_line_table[NB_DEPTHS * VGA_DRAW_LINE_NB] = { | |
1497 | vga_draw_line2_8, | |
1498 | vga_draw_line2_16, | |
1499 | vga_draw_line2_16, | |
1500 | vga_draw_line2_32, | |
1501 | vga_draw_line2_32, | |
1502 | vga_draw_line2_16, | |
1503 | vga_draw_line2_16, | |
1504 | ||
1505 | vga_draw_line2d2_8, | |
1506 | vga_draw_line2d2_16, | |
1507 | vga_draw_line2d2_16, | |
1508 | vga_draw_line2d2_32, | |
1509 | vga_draw_line2d2_32, | |
1510 | vga_draw_line2d2_16, | |
1511 | vga_draw_line2d2_16, | |
1512 | ||
1513 | vga_draw_line4_8, | |
1514 | vga_draw_line4_16, | |
1515 | vga_draw_line4_16, | |
1516 | vga_draw_line4_32, | |
1517 | vga_draw_line4_32, | |
1518 | vga_draw_line4_16, | |
1519 | vga_draw_line4_16, | |
1520 | ||
1521 | vga_draw_line4d2_8, | |
1522 | vga_draw_line4d2_16, | |
1523 | vga_draw_line4d2_16, | |
1524 | vga_draw_line4d2_32, | |
1525 | vga_draw_line4d2_32, | |
1526 | vga_draw_line4d2_16, | |
1527 | vga_draw_line4d2_16, | |
1528 | ||
1529 | vga_draw_line8d2_8, | |
1530 | vga_draw_line8d2_16, | |
1531 | vga_draw_line8d2_16, | |
1532 | vga_draw_line8d2_32, | |
1533 | vga_draw_line8d2_32, | |
1534 | vga_draw_line8d2_16, | |
1535 | vga_draw_line8d2_16, | |
1536 | ||
1537 | vga_draw_line8_8, | |
1538 | vga_draw_line8_16, | |
1539 | vga_draw_line8_16, | |
1540 | vga_draw_line8_32, | |
1541 | vga_draw_line8_32, | |
1542 | vga_draw_line8_16, | |
1543 | vga_draw_line8_16, | |
1544 | ||
1545 | vga_draw_line15_8, | |
1546 | vga_draw_line15_15, | |
1547 | vga_draw_line15_16, | |
1548 | vga_draw_line15_32, | |
1549 | vga_draw_line15_32bgr, | |
1550 | vga_draw_line15_15bgr, | |
1551 | vga_draw_line15_16bgr, | |
1552 | ||
1553 | vga_draw_line16_8, | |
1554 | vga_draw_line16_15, | |
1555 | vga_draw_line16_16, | |
1556 | vga_draw_line16_32, | |
1557 | vga_draw_line16_32bgr, | |
1558 | vga_draw_line16_15bgr, | |
1559 | vga_draw_line16_16bgr, | |
1560 | ||
1561 | vga_draw_line24_8, | |
1562 | vga_draw_line24_15, | |
1563 | vga_draw_line24_16, | |
1564 | vga_draw_line24_32, | |
1565 | vga_draw_line24_32bgr, | |
1566 | vga_draw_line24_15bgr, | |
1567 | vga_draw_line24_16bgr, | |
1568 | ||
1569 | vga_draw_line32_8, | |
1570 | vga_draw_line32_15, | |
1571 | vga_draw_line32_16, | |
1572 | vga_draw_line32_32, | |
1573 | vga_draw_line32_32bgr, | |
1574 | vga_draw_line32_15bgr, | |
1575 | vga_draw_line32_16bgr, | |
1576 | }; | |
1577 | ||
1578 | static int vga_get_bpp(VGACommonState *s) | |
1579 | { | |
1580 | int ret; | |
1581 | ||
1582 | if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) { | |
1583 | ret = s->vbe_regs[VBE_DISPI_INDEX_BPP]; | |
1584 | } else { | |
1585 | ret = 0; | |
1586 | } | |
1587 | return ret; | |
1588 | } | |
1589 | ||
1590 | static void vga_get_resolution(VGACommonState *s, int *pwidth, int *pheight) | |
1591 | { | |
1592 | int width, height; | |
1593 | ||
1594 | if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) { | |
1595 | width = s->vbe_regs[VBE_DISPI_INDEX_XRES]; | |
1596 | height = s->vbe_regs[VBE_DISPI_INDEX_YRES]; | |
1597 | } else { | |
1598 | width = (s->cr[VGA_CRTC_H_DISP] + 1) * 8; | |
1599 | height = s->cr[VGA_CRTC_V_DISP_END] | | |
1600 | ((s->cr[VGA_CRTC_OVERFLOW] & 0x02) << 7) | | |
1601 | ((s->cr[VGA_CRTC_OVERFLOW] & 0x40) << 3); | |
1602 | height = (height + 1); | |
1603 | } | |
1604 | *pwidth = width; | |
1605 | *pheight = height; | |
1606 | } | |
1607 | ||
1608 | void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2) | |
1609 | { | |
1610 | int y; | |
1611 | if (y1 >= VGA_MAX_HEIGHT) | |
1612 | return; | |
1613 | if (y2 >= VGA_MAX_HEIGHT) | |
1614 | y2 = VGA_MAX_HEIGHT; | |
1615 | for(y = y1; y < y2; y++) { | |
1616 | s->invalidated_y_table[y >> 5] |= 1 << (y & 0x1f); | |
1617 | } | |
1618 | } | |
1619 | ||
1620 | void vga_sync_dirty_bitmap(VGACommonState *s) | |
1621 | { | |
1622 | memory_region_sync_dirty_bitmap(&s->vram); | |
1623 | } | |
1624 | ||
1625 | void vga_dirty_log_start(VGACommonState *s) | |
1626 | { | |
1627 | memory_region_set_log(&s->vram, true, DIRTY_MEMORY_VGA); | |
1628 | } | |
1629 | ||
1630 | void vga_dirty_log_stop(VGACommonState *s) | |
1631 | { | |
1632 | memory_region_set_log(&s->vram, false, DIRTY_MEMORY_VGA); | |
1633 | } | |
1634 | ||
1635 | /* | |
1636 | * graphic modes | |
1637 | */ | |
1638 | static void vga_draw_graphic(VGACommonState *s, int full_update) | |
1639 | { | |
1640 | DisplaySurface *surface = qemu_console_surface(s->con); | |
1641 | int y1, y, update, linesize, y_start, double_scan, mask, depth; | |
1642 | int width, height, shift_control, line_offset, bwidth, bits; | |
1643 | ram_addr_t page0, page1, page_min, page_max; | |
1644 | int disp_width, multi_scan, multi_run; | |
1645 | uint8_t *d; | |
1646 | uint32_t v, addr1, addr; | |
1647 | vga_draw_line_func *vga_draw_line; | |
1648 | #if defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) | |
1649 | static const bool byteswap = false; | |
1650 | #else | |
1651 | static const bool byteswap = true; | |
1652 | #endif | |
1653 | ||
1654 | full_update |= update_basic_params(s); | |
1655 | ||
1656 | if (!full_update) | |
1657 | vga_sync_dirty_bitmap(s); | |
1658 | ||
1659 | s->get_resolution(s, &width, &height); | |
1660 | disp_width = width; | |
1661 | ||
1662 | shift_control = (s->gr[VGA_GFX_MODE] >> 5) & 3; | |
1663 | double_scan = (s->cr[VGA_CRTC_MAX_SCAN] >> 7); | |
1664 | if (shift_control != 1) { | |
1665 | multi_scan = (((s->cr[VGA_CRTC_MAX_SCAN] & 0x1f) + 1) << double_scan) | |
1666 | - 1; | |
1667 | } else { | |
1668 | /* in CGA modes, multi_scan is ignored */ | |
1669 | /* XXX: is it correct ? */ | |
1670 | multi_scan = double_scan; | |
1671 | } | |
1672 | multi_run = multi_scan; | |
1673 | if (shift_control != s->shift_control || | |
1674 | double_scan != s->double_scan) { | |
1675 | full_update = 1; | |
1676 | s->shift_control = shift_control; | |
1677 | s->double_scan = double_scan; | |
1678 | } | |
1679 | ||
1680 | if (shift_control == 0) { | |
1681 | if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { | |
1682 | disp_width <<= 1; | |
1683 | } | |
1684 | } else if (shift_control == 1) { | |
1685 | if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { | |
1686 | disp_width <<= 1; | |
1687 | } | |
1688 | } | |
1689 | ||
1690 | depth = s->get_bpp(s); | |
1691 | if (s->line_offset != s->last_line_offset || | |
1692 | disp_width != s->last_width || | |
1693 | height != s->last_height || | |
1694 | s->last_depth != depth) { | |
1695 | if (depth == 32 || (depth == 16 && !byteswap)) { | |
1696 | surface = qemu_create_displaysurface_from(disp_width, | |
1697 | height, depth, s->line_offset, | |
1698 | s->vram_ptr + (s->start_addr * 4), byteswap); | |
1699 | dpy_gfx_replace_surface(s->con, surface); | |
1700 | } else { | |
1701 | qemu_console_resize(s->con, disp_width, height); | |
1702 | surface = qemu_console_surface(s->con); | |
1703 | } | |
1704 | s->last_scr_width = disp_width; | |
1705 | s->last_scr_height = height; | |
1706 | s->last_width = disp_width; | |
1707 | s->last_height = height; | |
1708 | s->last_line_offset = s->line_offset; | |
1709 | s->last_depth = depth; | |
1710 | full_update = 1; | |
1711 | } else if (is_buffer_shared(surface) && | |
1712 | (full_update || surface_data(surface) != s->vram_ptr | |
1713 | + (s->start_addr * 4))) { | |
1714 | DisplaySurface *surface; | |
1715 | surface = qemu_create_displaysurface_from(disp_width, | |
1716 | height, depth, s->line_offset, | |
1717 | s->vram_ptr + (s->start_addr * 4), byteswap); | |
1718 | dpy_gfx_replace_surface(s->con, surface); | |
1719 | } | |
1720 | ||
1721 | s->rgb_to_pixel = | |
1722 | rgb_to_pixel_dup_table[get_depth_index(surface)]; | |
1723 | ||
1724 | if (shift_control == 0) { | |
1725 | full_update |= update_palette16(s); | |
1726 | if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { | |
1727 | v = VGA_DRAW_LINE4D2; | |
1728 | } else { | |
1729 | v = VGA_DRAW_LINE4; | |
1730 | } | |
1731 | bits = 4; | |
1732 | } else if (shift_control == 1) { | |
1733 | full_update |= update_palette16(s); | |
1734 | if (s->sr[VGA_SEQ_CLOCK_MODE] & 8) { | |
1735 | v = VGA_DRAW_LINE2D2; | |
1736 | } else { | |
1737 | v = VGA_DRAW_LINE2; | |
1738 | } | |
1739 | bits = 4; | |
1740 | } else { | |
1741 | switch(s->get_bpp(s)) { | |
1742 | default: | |
1743 | case 0: | |
1744 | full_update |= update_palette256(s); | |
1745 | v = VGA_DRAW_LINE8D2; | |
1746 | bits = 4; | |
1747 | break; | |
1748 | case 8: | |
1749 | full_update |= update_palette256(s); | |
1750 | v = VGA_DRAW_LINE8; | |
1751 | bits = 8; | |
1752 | break; | |
1753 | case 15: | |
1754 | v = VGA_DRAW_LINE15; | |
1755 | bits = 16; | |
1756 | break; | |
1757 | case 16: | |
1758 | v = VGA_DRAW_LINE16; | |
1759 | bits = 16; | |
1760 | break; | |
1761 | case 24: | |
1762 | v = VGA_DRAW_LINE24; | |
1763 | bits = 24; | |
1764 | break; | |
1765 | case 32: | |
1766 | v = VGA_DRAW_LINE32; | |
1767 | bits = 32; | |
1768 | break; | |
1769 | } | |
1770 | } | |
1771 | vga_draw_line = vga_draw_line_table[v * NB_DEPTHS + | |
1772 | get_depth_index(surface)]; | |
1773 | ||
1774 | if (!is_buffer_shared(surface) && s->cursor_invalidate) { | |
1775 | s->cursor_invalidate(s); | |
1776 | } | |
1777 | ||
1778 | line_offset = s->line_offset; | |
1779 | #if 0 | |
1780 | printf("w=%d h=%d v=%d line_offset=%d cr[0x09]=0x%02x cr[0x17]=0x%02x linecmp=%d sr[0x01]=0x%02x\n", | |
1781 | width, height, v, line_offset, s->cr[9], s->cr[VGA_CRTC_MODE], | |
1782 | s->line_compare, s->sr[VGA_SEQ_CLOCK_MODE]); | |
1783 | #endif | |
1784 | addr1 = (s->start_addr * 4); | |
1785 | bwidth = (width * bits + 7) / 8; | |
1786 | y_start = -1; | |
1787 | page_min = -1; | |
1788 | page_max = 0; | |
1789 | d = surface_data(surface); | |
1790 | linesize = surface_stride(surface); | |
1791 | y1 = 0; | |
1792 | for(y = 0; y < height; y++) { | |
1793 | addr = addr1; | |
1794 | if (!(s->cr[VGA_CRTC_MODE] & 1)) { | |
1795 | int shift; | |
1796 | /* CGA compatibility handling */ | |
1797 | shift = 14 + ((s->cr[VGA_CRTC_MODE] >> 6) & 1); | |
1798 | addr = (addr & ~(1 << shift)) | ((y1 & 1) << shift); | |
1799 | } | |
1800 | if (!(s->cr[VGA_CRTC_MODE] & 2)) { | |
1801 | addr = (addr & ~0x8000) | ((y1 & 2) << 14); | |
1802 | } | |
1803 | update = full_update; | |
1804 | page0 = addr; | |
1805 | page1 = addr + bwidth - 1; | |
1806 | update |= memory_region_get_dirty(&s->vram, page0, page1 - page0, | |
1807 | DIRTY_MEMORY_VGA); | |
1808 | /* explicit invalidation for the hardware cursor */ | |
1809 | update |= (s->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1; | |
1810 | if (update) { | |
1811 | if (y_start < 0) | |
1812 | y_start = y; | |
1813 | if (page0 < page_min) | |
1814 | page_min = page0; | |
1815 | if (page1 > page_max) | |
1816 | page_max = page1; | |
1817 | if (!(is_buffer_shared(surface))) { | |
1818 | vga_draw_line(s, d, s->vram_ptr + addr, width); | |
1819 | if (s->cursor_draw_line) | |
1820 | s->cursor_draw_line(s, d, y); | |
1821 | } | |
1822 | } else { | |
1823 | if (y_start >= 0) { | |
1824 | /* flush to display */ | |
1825 | dpy_gfx_update(s->con, 0, y_start, | |
1826 | disp_width, y - y_start); | |
1827 | y_start = -1; | |
1828 | } | |
1829 | } | |
1830 | if (!multi_run) { | |
1831 | mask = (s->cr[VGA_CRTC_MODE] & 3) ^ 3; | |
1832 | if ((y1 & mask) == mask) | |
1833 | addr1 += line_offset; | |
1834 | y1++; | |
1835 | multi_run = multi_scan; | |
1836 | } else { | |
1837 | multi_run--; | |
1838 | } | |
1839 | /* line compare acts on the displayed lines */ | |
1840 | if (y == s->line_compare) | |
1841 | addr1 = 0; | |
1842 | d += linesize; | |
1843 | } | |
1844 | if (y_start >= 0) { | |
1845 | /* flush to display */ | |
1846 | dpy_gfx_update(s->con, 0, y_start, | |
1847 | disp_width, y - y_start); | |
1848 | } | |
1849 | /* reset modified pages */ | |
1850 | if (page_max >= page_min) { | |
1851 | memory_region_reset_dirty(&s->vram, | |
1852 | page_min, | |
1853 | page_max - page_min, | |
1854 | DIRTY_MEMORY_VGA); | |
1855 | } | |
1856 | memset(s->invalidated_y_table, 0, ((height + 31) >> 5) * 4); | |
1857 | } | |
1858 | ||
1859 | static void vga_draw_blank(VGACommonState *s, int full_update) | |
1860 | { | |
1861 | DisplaySurface *surface = qemu_console_surface(s->con); | |
1862 | int i, w, val; | |
1863 | uint8_t *d; | |
1864 | ||
1865 | if (!full_update) | |
1866 | return; | |
1867 | if (s->last_scr_width <= 0 || s->last_scr_height <= 0) | |
1868 | return; | |
1869 | ||
1870 | s->rgb_to_pixel = | |
1871 | rgb_to_pixel_dup_table[get_depth_index(surface)]; | |
1872 | if (surface_bits_per_pixel(surface) == 8) { | |
1873 | val = s->rgb_to_pixel(0, 0, 0); | |
1874 | } else { | |
1875 | val = 0; | |
1876 | } | |
1877 | w = s->last_scr_width * surface_bytes_per_pixel(surface); | |
1878 | d = surface_data(surface); | |
1879 | for(i = 0; i < s->last_scr_height; i++) { | |
1880 | memset(d, val, w); | |
1881 | d += surface_stride(surface); | |
1882 | } | |
1883 | dpy_gfx_update(s->con, 0, 0, | |
1884 | s->last_scr_width, s->last_scr_height); | |
1885 | } | |
1886 | ||
1887 | #define GMODE_TEXT 0 | |
1888 | #define GMODE_GRAPH 1 | |
1889 | #define GMODE_BLANK 2 | |
1890 | ||
1891 | static void vga_update_display(void *opaque) | |
1892 | { | |
1893 | VGACommonState *s = opaque; | |
1894 | DisplaySurface *surface = qemu_console_surface(s->con); | |
1895 | int full_update, graphic_mode; | |
1896 | ||
1897 | qemu_flush_coalesced_mmio_buffer(); | |
1898 | ||
1899 | if (surface_bits_per_pixel(surface) == 0) { | |
1900 | /* nothing to do */ | |
1901 | } else { | |
1902 | full_update = 0; | |
1903 | if (!(s->ar_index & 0x20)) { | |
1904 | graphic_mode = GMODE_BLANK; | |
1905 | } else { | |
1906 | graphic_mode = s->gr[VGA_GFX_MISC] & VGA_GR06_GRAPHICS_MODE; | |
1907 | } | |
1908 | if (graphic_mode != s->graphic_mode) { | |
1909 | s->graphic_mode = graphic_mode; | |
1910 | s->cursor_blink_time = qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL); | |
1911 | full_update = 1; | |
1912 | } | |
1913 | switch(graphic_mode) { | |
1914 | case GMODE_TEXT: | |
1915 | vga_draw_text(s, full_update); | |
1916 | break; | |
1917 | case GMODE_GRAPH: | |
1918 | vga_draw_graphic(s, full_update); | |
1919 | break; | |
1920 | case GMODE_BLANK: | |
1921 | default: | |
1922 | vga_draw_blank(s, full_update); | |
1923 | break; | |
1924 | } | |
1925 | } | |
1926 | } | |
1927 | ||
1928 | /* force a full display refresh */ | |
1929 | static void vga_invalidate_display(void *opaque) | |
1930 | { | |
1931 | VGACommonState *s = opaque; | |
1932 | ||
1933 | s->last_width = -1; | |
1934 | s->last_height = -1; | |
1935 | } | |
1936 | ||
1937 | void vga_common_reset(VGACommonState *s) | |
1938 | { | |
1939 | s->sr_index = 0; | |
1940 | memset(s->sr, '\0', sizeof(s->sr)); | |
1941 | s->gr_index = 0; | |
1942 | memset(s->gr, '\0', sizeof(s->gr)); | |
1943 | s->ar_index = 0; | |
1944 | memset(s->ar, '\0', sizeof(s->ar)); | |
1945 | s->ar_flip_flop = 0; | |
1946 | s->cr_index = 0; | |
1947 | memset(s->cr, '\0', sizeof(s->cr)); | |
1948 | s->msr = 0; | |
1949 | s->fcr = 0; | |
1950 | s->st00 = 0; | |
1951 | s->st01 = 0; | |
1952 | s->dac_state = 0; | |
1953 | s->dac_sub_index = 0; | |
1954 | s->dac_read_index = 0; | |
1955 | s->dac_write_index = 0; | |
1956 | memset(s->dac_cache, '\0', sizeof(s->dac_cache)); | |
1957 | s->dac_8bit = 0; | |
1958 | memset(s->palette, '\0', sizeof(s->palette)); | |
1959 | s->bank_offset = 0; | |
1960 | s->vbe_index = 0; | |
1961 | memset(s->vbe_regs, '\0', sizeof(s->vbe_regs)); | |
1962 | s->vbe_regs[VBE_DISPI_INDEX_ID] = VBE_DISPI_ID5; | |
1963 | s->vbe_start_addr = 0; | |
1964 | s->vbe_line_offset = 0; | |
1965 | s->vbe_bank_mask = (s->vram_size >> 16) - 1; | |
1966 | memset(s->font_offsets, '\0', sizeof(s->font_offsets)); | |
1967 | s->graphic_mode = -1; /* force full update */ | |
1968 | s->shift_control = 0; | |
1969 | s->double_scan = 0; | |
1970 | s->line_offset = 0; | |
1971 | s->line_compare = 0; | |
1972 | s->start_addr = 0; | |
1973 | s->plane_updated = 0; | |
1974 | s->last_cw = 0; | |
1975 | s->last_ch = 0; | |
1976 | s->last_width = 0; | |
1977 | s->last_height = 0; | |
1978 | s->last_scr_width = 0; | |
1979 | s->last_scr_height = 0; | |
1980 | s->cursor_start = 0; | |
1981 | s->cursor_end = 0; | |
1982 | s->cursor_offset = 0; | |
1983 | memset(s->invalidated_y_table, '\0', sizeof(s->invalidated_y_table)); | |
1984 | memset(s->last_palette, '\0', sizeof(s->last_palette)); | |
1985 | memset(s->last_ch_attr, '\0', sizeof(s->last_ch_attr)); | |
1986 | switch (vga_retrace_method) { | |
1987 | case VGA_RETRACE_DUMB: | |
1988 | break; | |
1989 | case VGA_RETRACE_PRECISE: | |
1990 | memset(&s->retrace_info, 0, sizeof (s->retrace_info)); | |
1991 | break; | |
1992 | } | |
1993 | vga_update_memory_access(s); | |
1994 | } | |
1995 | ||
1996 | static void vga_reset(void *opaque) | |
1997 | { | |
1998 | VGACommonState *s = opaque; | |
1999 | vga_common_reset(s); | |
2000 | } | |
2001 | ||
2002 | #define TEXTMODE_X(x) ((x) % width) | |
2003 | #define TEXTMODE_Y(x) ((x) / width) | |
2004 | #define VMEM2CHTYPE(v) ((v & 0xff0007ff) | \ | |
2005 | ((v & 0x00000800) << 10) | ((v & 0x00007000) >> 1)) | |
2006 | /* relay text rendering to the display driver | |
2007 | * instead of doing a full vga_update_display() */ | |
2008 | static void vga_update_text(void *opaque, console_ch_t *chardata) | |
2009 | { | |
2010 | VGACommonState *s = opaque; | |
2011 | int graphic_mode, i, cursor_offset, cursor_visible; | |
2012 | int cw, cheight, width, height, size, c_min, c_max; | |
2013 | uint32_t *src; | |
2014 | console_ch_t *dst, val; | |
2015 | char msg_buffer[80]; | |
2016 | int full_update = 0; | |
2017 | ||
2018 | qemu_flush_coalesced_mmio_buffer(); | |
2019 | ||
2020 | if (!(s->ar_index & 0x20)) { | |
2021 | graphic_mode = GMODE_BLANK; | |
2022 | } else { | |
2023 | graphic_mode = s->gr[VGA_GFX_MISC] & VGA_GR06_GRAPHICS_MODE; | |
2024 | } | |
2025 | if (graphic_mode != s->graphic_mode) { | |
2026 | s->graphic_mode = graphic_mode; | |
2027 | full_update = 1; | |
2028 | } | |
2029 | if (s->last_width == -1) { | |
2030 | s->last_width = 0; | |
2031 | full_update = 1; | |
2032 | } | |
2033 | ||
2034 | switch (graphic_mode) { | |
2035 | case GMODE_TEXT: | |
2036 | /* TODO: update palette */ | |
2037 | full_update |= update_basic_params(s); | |
2038 | ||
2039 | /* total width & height */ | |
2040 | cheight = (s->cr[VGA_CRTC_MAX_SCAN] & 0x1f) + 1; | |
2041 | cw = 8; | |
2042 | if (!(s->sr[VGA_SEQ_CLOCK_MODE] & VGA_SR01_CHAR_CLK_8DOTS)) { | |
2043 | cw = 9; | |
2044 | } | |
2045 | if (s->sr[VGA_SEQ_CLOCK_MODE] & 0x08) { | |
2046 | cw = 16; /* NOTE: no 18 pixel wide */ | |
2047 | } | |
2048 | width = (s->cr[VGA_CRTC_H_DISP] + 1); | |
2049 | if (s->cr[VGA_CRTC_V_TOTAL] == 100) { | |
2050 | /* ugly hack for CGA 160x100x16 - explain me the logic */ | |
2051 | height = 100; | |
2052 | } else { | |
2053 | height = s->cr[VGA_CRTC_V_DISP_END] | | |
2054 | ((s->cr[VGA_CRTC_OVERFLOW] & 0x02) << 7) | | |
2055 | ((s->cr[VGA_CRTC_OVERFLOW] & 0x40) << 3); | |
2056 | height = (height + 1) / cheight; | |
2057 | } | |
2058 | ||
2059 | size = (height * width); | |
2060 | if (size > CH_ATTR_SIZE) { | |
2061 | if (!full_update) | |
2062 | return; | |
2063 | ||
2064 | snprintf(msg_buffer, sizeof(msg_buffer), "%i x %i Text mode", | |
2065 | width, height); | |
2066 | break; | |
2067 | } | |
2068 | ||
2069 | if (width != s->last_width || height != s->last_height || | |
2070 | cw != s->last_cw || cheight != s->last_ch) { | |
2071 | s->last_scr_width = width * cw; | |
2072 | s->last_scr_height = height * cheight; | |
2073 | qemu_console_resize(s->con, s->last_scr_width, s->last_scr_height); | |
2074 | dpy_text_resize(s->con, width, height); | |
2075 | s->last_depth = 0; | |
2076 | s->last_width = width; | |
2077 | s->last_height = height; | |
2078 | s->last_ch = cheight; | |
2079 | s->last_cw = cw; | |
2080 | full_update = 1; | |
2081 | } | |
2082 | ||
2083 | if (full_update) { | |
2084 | s->full_update_gfx = 1; | |
2085 | } | |
2086 | if (s->full_update_text) { | |
2087 | s->full_update_text = 0; | |
2088 | full_update |= 1; | |
2089 | } | |
2090 | ||
2091 | /* Update "hardware" cursor */ | |
2092 | cursor_offset = ((s->cr[VGA_CRTC_CURSOR_HI] << 8) | | |
2093 | s->cr[VGA_CRTC_CURSOR_LO]) - s->start_addr; | |
2094 | if (cursor_offset != s->cursor_offset || | |
2095 | s->cr[VGA_CRTC_CURSOR_START] != s->cursor_start || | |
2096 | s->cr[VGA_CRTC_CURSOR_END] != s->cursor_end || full_update) { | |
2097 | cursor_visible = !(s->cr[VGA_CRTC_CURSOR_START] & 0x20); | |
2098 | if (cursor_visible && cursor_offset < size && cursor_offset >= 0) | |
2099 | dpy_text_cursor(s->con, | |
2100 | TEXTMODE_X(cursor_offset), | |
2101 | TEXTMODE_Y(cursor_offset)); | |
2102 | else | |
2103 | dpy_text_cursor(s->con, -1, -1); | |
2104 | s->cursor_offset = cursor_offset; | |
2105 | s->cursor_start = s->cr[VGA_CRTC_CURSOR_START]; | |
2106 | s->cursor_end = s->cr[VGA_CRTC_CURSOR_END]; | |
2107 | } | |
2108 | ||
2109 | src = (uint32_t *) s->vram_ptr + s->start_addr; | |
2110 | dst = chardata; | |
2111 | ||
2112 | if (full_update) { | |
2113 | for (i = 0; i < size; src ++, dst ++, i ++) | |
2114 | console_write_ch(dst, VMEM2CHTYPE(le32_to_cpu(*src))); | |
2115 | ||
2116 | dpy_text_update(s->con, 0, 0, width, height); | |
2117 | } else { | |
2118 | c_max = 0; | |
2119 | ||
2120 | for (i = 0; i < size; src ++, dst ++, i ++) { | |
2121 | console_write_ch(&val, VMEM2CHTYPE(le32_to_cpu(*src))); | |
2122 | if (*dst != val) { | |
2123 | *dst = val; | |
2124 | c_max = i; | |
2125 | break; | |
2126 | } | |
2127 | } | |
2128 | c_min = i; | |
2129 | for (; i < size; src ++, dst ++, i ++) { | |
2130 | console_write_ch(&val, VMEM2CHTYPE(le32_to_cpu(*src))); | |
2131 | if (*dst != val) { | |
2132 | *dst = val; | |
2133 | c_max = i; | |
2134 | } | |
2135 | } | |
2136 | ||
2137 | if (c_min <= c_max) { | |
2138 | i = TEXTMODE_Y(c_min); | |
2139 | dpy_text_update(s->con, 0, i, width, TEXTMODE_Y(c_max) - i + 1); | |
2140 | } | |
2141 | } | |
2142 | ||
2143 | return; | |
2144 | case GMODE_GRAPH: | |
2145 | if (!full_update) | |
2146 | return; | |
2147 | ||
2148 | s->get_resolution(s, &width, &height); | |
2149 | snprintf(msg_buffer, sizeof(msg_buffer), "%i x %i Graphic mode", | |
2150 | width, height); | |
2151 | break; | |
2152 | case GMODE_BLANK: | |
2153 | default: | |
2154 | if (!full_update) | |
2155 | return; | |
2156 | ||
2157 | snprintf(msg_buffer, sizeof(msg_buffer), "VGA Blank mode"); | |
2158 | break; | |
2159 | } | |
2160 | ||
2161 | /* Display a message */ | |
2162 | s->last_width = 60; | |
2163 | s->last_height = height = 3; | |
2164 | dpy_text_cursor(s->con, -1, -1); | |
2165 | dpy_text_resize(s->con, s->last_width, height); | |
2166 | ||
2167 | for (dst = chardata, i = 0; i < s->last_width * height; i ++) | |
2168 | console_write_ch(dst ++, ' '); | |
2169 | ||
2170 | size = strlen(msg_buffer); | |
2171 | width = (s->last_width - size) / 2; | |
2172 | dst = chardata + s->last_width + width; | |
2173 | for (i = 0; i < size; i ++) | |
2174 | console_write_ch(dst ++, 0x00200100 | msg_buffer[i]); | |
2175 | ||
2176 | dpy_text_update(s->con, 0, 0, s->last_width, height); | |
2177 | } | |
2178 | ||
2179 | static uint64_t vga_mem_read(void *opaque, hwaddr addr, | |
2180 | unsigned size) | |
2181 | { | |
2182 | VGACommonState *s = opaque; | |
2183 | ||
2184 | return vga_mem_readb(s, addr); | |
2185 | } | |
2186 | ||
2187 | static void vga_mem_write(void *opaque, hwaddr addr, | |
2188 | uint64_t data, unsigned size) | |
2189 | { | |
2190 | VGACommonState *s = opaque; | |
2191 | ||
2192 | return vga_mem_writeb(s, addr, data); | |
2193 | } | |
2194 | ||
2195 | const MemoryRegionOps vga_mem_ops = { | |
2196 | .read = vga_mem_read, | |
2197 | .write = vga_mem_write, | |
2198 | .endianness = DEVICE_LITTLE_ENDIAN, | |
2199 | .impl = { | |
2200 | .min_access_size = 1, | |
2201 | .max_access_size = 1, | |
2202 | }, | |
2203 | }; | |
2204 | ||
2205 | static int vga_common_post_load(void *opaque, int version_id) | |
2206 | { | |
2207 | VGACommonState *s = opaque; | |
2208 | ||
2209 | /* force refresh */ | |
2210 | s->graphic_mode = -1; | |
2211 | return 0; | |
2212 | } | |
2213 | ||
2214 | const VMStateDescription vmstate_vga_common = { | |
2215 | .name = "vga", | |
2216 | .version_id = 2, | |
2217 | .minimum_version_id = 2, | |
2218 | .minimum_version_id_old = 2, | |
2219 | .post_load = vga_common_post_load, | |
2220 | .fields = (VMStateField []) { | |
2221 | VMSTATE_UINT32(latch, VGACommonState), | |
2222 | VMSTATE_UINT8(sr_index, VGACommonState), | |
2223 | VMSTATE_PARTIAL_BUFFER(sr, VGACommonState, 8), | |
2224 | VMSTATE_UINT8(gr_index, VGACommonState), | |
2225 | VMSTATE_PARTIAL_BUFFER(gr, VGACommonState, 16), | |
2226 | VMSTATE_UINT8(ar_index, VGACommonState), | |
2227 | VMSTATE_BUFFER(ar, VGACommonState), | |
2228 | VMSTATE_INT32(ar_flip_flop, VGACommonState), | |
2229 | VMSTATE_UINT8(cr_index, VGACommonState), | |
2230 | VMSTATE_BUFFER(cr, VGACommonState), | |
2231 | VMSTATE_UINT8(msr, VGACommonState), | |
2232 | VMSTATE_UINT8(fcr, VGACommonState), | |
2233 | VMSTATE_UINT8(st00, VGACommonState), | |
2234 | VMSTATE_UINT8(st01, VGACommonState), | |
2235 | ||
2236 | VMSTATE_UINT8(dac_state, VGACommonState), | |
2237 | VMSTATE_UINT8(dac_sub_index, VGACommonState), | |
2238 | VMSTATE_UINT8(dac_read_index, VGACommonState), | |
2239 | VMSTATE_UINT8(dac_write_index, VGACommonState), | |
2240 | VMSTATE_BUFFER(dac_cache, VGACommonState), | |
2241 | VMSTATE_BUFFER(palette, VGACommonState), | |
2242 | ||
2243 | VMSTATE_INT32(bank_offset, VGACommonState), | |
2244 | VMSTATE_UINT8_EQUAL(is_vbe_vmstate, VGACommonState), | |
2245 | VMSTATE_UINT16(vbe_index, VGACommonState), | |
2246 | VMSTATE_UINT16_ARRAY(vbe_regs, VGACommonState, VBE_DISPI_INDEX_NB), | |
2247 | VMSTATE_UINT32(vbe_start_addr, VGACommonState), | |
2248 | VMSTATE_UINT32(vbe_line_offset, VGACommonState), | |
2249 | VMSTATE_UINT32(vbe_bank_mask, VGACommonState), | |
2250 | VMSTATE_END_OF_LIST() | |
2251 | } | |
2252 | }; | |
2253 | ||
2254 | static const GraphicHwOps vga_ops = { | |
2255 | .invalidate = vga_invalidate_display, | |
2256 | .gfx_update = vga_update_display, | |
2257 | .text_update = vga_update_text, | |
2258 | }; | |
2259 | ||
2260 | void vga_common_init(VGACommonState *s, Object *obj) | |
2261 | { | |
2262 | int i, j, v, b; | |
2263 | ||
2264 | for(i = 0;i < 256; i++) { | |
2265 | v = 0; | |
2266 | for(j = 0; j < 8; j++) { | |
2267 | v |= ((i >> j) & 1) << (j * 4); | |
2268 | } | |
2269 | expand4[i] = v; | |
2270 | ||
2271 | v = 0; | |
2272 | for(j = 0; j < 4; j++) { | |
2273 | v |= ((i >> (2 * j)) & 3) << (j * 4); | |
2274 | } | |
2275 | expand2[i] = v; | |
2276 | } | |
2277 | for(i = 0; i < 16; i++) { | |
2278 | v = 0; | |
2279 | for(j = 0; j < 4; j++) { | |
2280 | b = ((i >> j) & 1); | |
2281 | v |= b << (2 * j); | |
2282 | v |= b << (2 * j + 1); | |
2283 | } | |
2284 | expand4to8[i] = v; | |
2285 | } | |
2286 | ||
2287 | /* valid range: 1 MB -> 256 MB */ | |
2288 | s->vram_size = 1024 * 1024; | |
2289 | while (s->vram_size < (s->vram_size_mb << 20) && | |
2290 | s->vram_size < (256 << 20)) { | |
2291 | s->vram_size <<= 1; | |
2292 | } | |
2293 | s->vram_size_mb = s->vram_size >> 20; | |
2294 | ||
2295 | s->is_vbe_vmstate = 1; | |
2296 | memory_region_init_ram(&s->vram, obj, "vga.vram", s->vram_size); | |
2297 | vmstate_register_ram_global(&s->vram); | |
2298 | xen_register_framebuffer(&s->vram); | |
2299 | s->vram_ptr = memory_region_get_ram_ptr(&s->vram); | |
2300 | s->get_bpp = vga_get_bpp; | |
2301 | s->get_offsets = vga_get_offsets; | |
2302 | s->get_resolution = vga_get_resolution; | |
2303 | s->hw_ops = &vga_ops; | |
2304 | switch (vga_retrace_method) { | |
2305 | case VGA_RETRACE_DUMB: | |
2306 | s->retrace = vga_dumb_retrace; | |
2307 | s->update_retrace_info = vga_dumb_update_retrace_info; | |
2308 | break; | |
2309 | ||
2310 | case VGA_RETRACE_PRECISE: | |
2311 | s->retrace = vga_precise_retrace; | |
2312 | s->update_retrace_info = vga_precise_update_retrace_info; | |
2313 | break; | |
2314 | } | |
2315 | vga_dirty_log_start(s); | |
2316 | } | |
2317 | ||
2318 | static const MemoryRegionPortio vga_portio_list[] = { | |
2319 | { 0x04, 2, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3b4 */ | |
2320 | { 0x0a, 1, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3ba */ | |
2321 | { 0x10, 16, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3c0 */ | |
2322 | { 0x24, 2, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3d4 */ | |
2323 | { 0x2a, 1, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3da */ | |
2324 | PORTIO_END_OF_LIST(), | |
2325 | }; | |
2326 | ||
2327 | static const MemoryRegionPortio vbe_portio_list[] = { | |
2328 | { 0, 1, 2, .read = vbe_ioport_read_index, .write = vbe_ioport_write_index }, | |
2329 | # ifdef TARGET_I386 | |
2330 | { 1, 1, 2, .read = vbe_ioport_read_data, .write = vbe_ioport_write_data }, | |
2331 | # endif | |
2332 | { 2, 1, 2, .read = vbe_ioport_read_data, .write = vbe_ioport_write_data }, | |
2333 | PORTIO_END_OF_LIST(), | |
2334 | }; | |
2335 | ||
2336 | /* Used by both ISA and PCI */ | |
2337 | MemoryRegion *vga_init_io(VGACommonState *s, Object *obj, | |
2338 | const MemoryRegionPortio **vga_ports, | |
2339 | const MemoryRegionPortio **vbe_ports) | |
2340 | { | |
2341 | MemoryRegion *vga_mem; | |
2342 | ||
2343 | *vga_ports = vga_portio_list; | |
2344 | *vbe_ports = vbe_portio_list; | |
2345 | ||
2346 | vga_mem = g_malloc(sizeof(*vga_mem)); | |
2347 | memory_region_init_io(vga_mem, obj, &vga_mem_ops, s, | |
2348 | "vga-lowmem", 0x20000); | |
2349 | memory_region_set_flush_coalesced(vga_mem); | |
2350 | ||
2351 | return vga_mem; | |
2352 | } | |
2353 | ||
2354 | void vga_init(VGACommonState *s, Object *obj, MemoryRegion *address_space, | |
2355 | MemoryRegion *address_space_io, bool init_vga_ports) | |
2356 | { | |
2357 | MemoryRegion *vga_io_memory; | |
2358 | const MemoryRegionPortio *vga_ports, *vbe_ports; | |
2359 | PortioList *vga_port_list = g_new(PortioList, 1); | |
2360 | PortioList *vbe_port_list = g_new(PortioList, 1); | |
2361 | ||
2362 | qemu_register_reset(vga_reset, s); | |
2363 | ||
2364 | s->bank_offset = 0; | |
2365 | ||
2366 | s->legacy_address_space = address_space; | |
2367 | ||
2368 | vga_io_memory = vga_init_io(s, obj, &vga_ports, &vbe_ports); | |
2369 | memory_region_add_subregion_overlap(address_space, | |
2370 | isa_mem_base + 0x000a0000, | |
2371 | vga_io_memory, | |
2372 | 1); | |
2373 | memory_region_set_coalescing(vga_io_memory); | |
2374 | if (init_vga_ports) { | |
2375 | portio_list_init(vga_port_list, obj, vga_ports, s, "vga"); | |
2376 | portio_list_add(vga_port_list, address_space_io, 0x3b0); | |
2377 | } | |
2378 | if (vbe_ports) { | |
2379 | portio_list_init(vbe_port_list, obj, vbe_ports, s, "vbe"); | |
2380 | portio_list_add(vbe_port_list, address_space_io, 0x1ce); | |
2381 | } | |
2382 | } | |
2383 | ||
2384 | void vga_init_vbe(VGACommonState *s, Object *obj, MemoryRegion *system_memory) | |
2385 | { | |
2386 | /* With pc-0.12 and below we map both the PCI BAR and the fixed VBE region, | |
2387 | * so use an alias to avoid double-mapping the same region. | |
2388 | */ | |
2389 | memory_region_init_alias(&s->vram_vbe, obj, "vram.vbe", | |
2390 | &s->vram, 0, memory_region_size(&s->vram)); | |
2391 | /* XXX: use optimized standard vga accesses */ | |
2392 | memory_region_add_subregion(system_memory, | |
2393 | VBE_DISPI_LFB_PHYSICAL_ADDRESS, | |
2394 | &s->vram_vbe); | |
2395 | s->vbe_mapped = 1; | |
2396 | } |