root / hw / vga.c @ a0f42610
History | View | Annotate | Download (68.6 kB)
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.h" |
25 |
#include "console.h" |
26 |
#include "pc.h" |
27 |
#include "pci.h" |
28 |
#include "vga_int.h" |
29 |
#include "pixel_ops.h" |
30 |
#include "qemu-timer.h" |
31 |
#include "xen.h" |
32 |
|
33 |
//#define DEBUG_VGA
|
34 |
//#define DEBUG_VGA_MEM
|
35 |
//#define DEBUG_VGA_REG
|
36 |
|
37 |
//#define DEBUG_BOCHS_VBE
|
38 |
|
39 |
/* force some bits to zero */
|
40 |
const uint8_t sr_mask[8] = { |
41 |
0x03,
|
42 |
0x3d,
|
43 |
0x0f,
|
44 |
0x3f,
|
45 |
0x0e,
|
46 |
0x00,
|
47 |
0x00,
|
48 |
0xff,
|
49 |
}; |
50 |
|
51 |
const uint8_t gr_mask[16] = { |
52 |
0x0f, /* 0x00 */ |
53 |
0x0f, /* 0x01 */ |
54 |
0x0f, /* 0x02 */ |
55 |
0x1f, /* 0x03 */ |
56 |
0x03, /* 0x04 */ |
57 |
0x7b, /* 0x05 */ |
58 |
0x0f, /* 0x06 */ |
59 |
0x0f, /* 0x07 */ |
60 |
0xff, /* 0x08 */ |
61 |
0x00, /* 0x09 */ |
62 |
0x00, /* 0x0a */ |
63 |
0x00, /* 0x0b */ |
64 |
0x00, /* 0x0c */ |
65 |
0x00, /* 0x0d */ |
66 |
0x00, /* 0x0e */ |
67 |
0x00, /* 0x0f */ |
68 |
}; |
69 |
|
70 |
#define cbswap_32(__x) \
|
71 |
((uint32_t)( \ |
72 |
(((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) | \ |
73 |
(((uint32_t)(__x) & (uint32_t)0x0000ff00UL) << 8) | \ |
74 |
(((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >> 8) | \ |
75 |
(((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) )) |
76 |
|
77 |
#ifdef HOST_WORDS_BIGENDIAN
|
78 |
#define PAT(x) cbswap_32(x)
|
79 |
#else
|
80 |
#define PAT(x) (x)
|
81 |
#endif
|
82 |
|
83 |
#ifdef HOST_WORDS_BIGENDIAN
|
84 |
#define BIG 1 |
85 |
#else
|
86 |
#define BIG 0 |
87 |
#endif
|
88 |
|
89 |
#ifdef HOST_WORDS_BIGENDIAN
|
90 |
#define GET_PLANE(data, p) (((data) >> (24 - (p) * 8)) & 0xff) |
91 |
#else
|
92 |
#define GET_PLANE(data, p) (((data) >> ((p) * 8)) & 0xff) |
93 |
#endif
|
94 |
|
95 |
static const uint32_t mask16[16] = { |
96 |
PAT(0x00000000),
|
97 |
PAT(0x000000ff),
|
98 |
PAT(0x0000ff00),
|
99 |
PAT(0x0000ffff),
|
100 |
PAT(0x00ff0000),
|
101 |
PAT(0x00ff00ff),
|
102 |
PAT(0x00ffff00),
|
103 |
PAT(0x00ffffff),
|
104 |
PAT(0xff000000),
|
105 |
PAT(0xff0000ff),
|
106 |
PAT(0xff00ff00),
|
107 |
PAT(0xff00ffff),
|
108 |
PAT(0xffff0000),
|
109 |
PAT(0xffff00ff),
|
110 |
PAT(0xffffff00),
|
111 |
PAT(0xffffffff),
|
112 |
}; |
113 |
|
114 |
#undef PAT
|
115 |
|
116 |
#ifdef HOST_WORDS_BIGENDIAN
|
117 |
#define PAT(x) (x)
|
118 |
#else
|
119 |
#define PAT(x) cbswap_32(x)
|
120 |
#endif
|
121 |
|
122 |
static const uint32_t dmask16[16] = { |
123 |
PAT(0x00000000),
|
124 |
PAT(0x000000ff),
|
125 |
PAT(0x0000ff00),
|
126 |
PAT(0x0000ffff),
|
127 |
PAT(0x00ff0000),
|
128 |
PAT(0x00ff00ff),
|
129 |
PAT(0x00ffff00),
|
130 |
PAT(0x00ffffff),
|
131 |
PAT(0xff000000),
|
132 |
PAT(0xff0000ff),
|
133 |
PAT(0xff00ff00),
|
134 |
PAT(0xff00ffff),
|
135 |
PAT(0xffff0000),
|
136 |
PAT(0xffff00ff),
|
137 |
PAT(0xffffff00),
|
138 |
PAT(0xffffffff),
|
139 |
}; |
140 |
|
141 |
static const uint32_t dmask4[4] = { |
142 |
PAT(0x00000000),
|
143 |
PAT(0x0000ffff),
|
144 |
PAT(0xffff0000),
|
145 |
PAT(0xffffffff),
|
146 |
}; |
147 |
|
148 |
static uint32_t expand4[256]; |
149 |
static uint16_t expand2[256]; |
150 |
static uint8_t expand4to8[16]; |
151 |
|
152 |
static void vga_screen_dump(void *opaque, const char *filename); |
153 |
static const char *screen_dump_filename; |
154 |
static DisplayChangeListener *screen_dump_dcl;
|
155 |
|
156 |
static void vga_update_memory_access(VGACommonState *s) |
157 |
{ |
158 |
MemoryRegion *region, *old_region = s->chain4_alias; |
159 |
target_phys_addr_t base, offset, size; |
160 |
|
161 |
s->chain4_alias = NULL;
|
162 |
|
163 |
if ((s->sr[0x02] & 0xf) == 0xf && s->sr[0x04] & 0x08) { |
164 |
offset = 0;
|
165 |
switch ((s->gr[6] >> 2) & 3) { |
166 |
case 0: |
167 |
base = 0xa0000;
|
168 |
size = 0x20000;
|
169 |
break;
|
170 |
case 1: |
171 |
base = 0xa0000;
|
172 |
size = 0x10000;
|
173 |
offset = s->bank_offset; |
174 |
break;
|
175 |
case 2: |
176 |
base = 0xb0000;
|
177 |
size = 0x8000;
|
178 |
break;
|
179 |
case 3: |
180 |
default:
|
181 |
base = 0xb8000;
|
182 |
size = 0x8000;
|
183 |
break;
|
184 |
} |
185 |
base += isa_mem_base; |
186 |
region = g_malloc(sizeof(*region));
|
187 |
memory_region_init_alias(region, "vga.chain4", &s->vram, offset, size);
|
188 |
memory_region_add_subregion_overlap(s->legacy_address_space, base, |
189 |
region, 2);
|
190 |
s->chain4_alias = region; |
191 |
} |
192 |
if (old_region) {
|
193 |
memory_region_del_subregion(s->legacy_address_space, old_region); |
194 |
memory_region_destroy(old_region); |
195 |
g_free(old_region); |
196 |
s->plane_updated = 0xf;
|
197 |
} |
198 |
} |
199 |
|
200 |
static void vga_dumb_update_retrace_info(VGACommonState *s) |
201 |
{ |
202 |
(void) s;
|
203 |
} |
204 |
|
205 |
static void vga_precise_update_retrace_info(VGACommonState *s) |
206 |
{ |
207 |
int htotal_chars;
|
208 |
int hretr_start_char;
|
209 |
int hretr_skew_chars;
|
210 |
int hretr_end_char;
|
211 |
|
212 |
int vtotal_lines;
|
213 |
int vretr_start_line;
|
214 |
int vretr_end_line;
|
215 |
|
216 |
int dots;
|
217 |
#if 0
|
218 |
int div2, sldiv2;
|
219 |
#endif
|
220 |
int clocking_mode;
|
221 |
int clock_sel;
|
222 |
const int clk_hz[] = {25175000, 28322000, 25175000, 25175000}; |
223 |
int64_t chars_per_sec; |
224 |
struct vga_precise_retrace *r = &s->retrace_info.precise;
|
225 |
|
226 |
htotal_chars = s->cr[0x00] + 5; |
227 |
hretr_start_char = s->cr[0x04];
|
228 |
hretr_skew_chars = (s->cr[0x05] >> 5) & 3; |
229 |
hretr_end_char = s->cr[0x05] & 0x1f; |
230 |
|
231 |
vtotal_lines = (s->cr[0x06]
|
232 |
| (((s->cr[0x07] & 1) | ((s->cr[0x07] >> 4) & 2)) << 8)) + 2 |
233 |
; |
234 |
vretr_start_line = s->cr[0x10]
|
235 |
| ((((s->cr[0x07] >> 2) & 1) | ((s->cr[0x07] >> 6) & 2)) << 8) |
236 |
; |
237 |
vretr_end_line = s->cr[0x11] & 0xf; |
238 |
|
239 |
|
240 |
|
241 |
clocking_mode = (s->sr[0x01] >> 3) & 1; |
242 |
clock_sel = (s->msr >> 2) & 3; |
243 |
dots = (s->msr & 1) ? 8 : 9; |
244 |
|
245 |
chars_per_sec = clk_hz[clock_sel] / dots; |
246 |
|
247 |
htotal_chars <<= clocking_mode; |
248 |
|
249 |
r->total_chars = vtotal_lines * htotal_chars; |
250 |
if (r->freq) {
|
251 |
r->ticks_per_char = get_ticks_per_sec() / (r->total_chars * r->freq); |
252 |
} else {
|
253 |
r->ticks_per_char = get_ticks_per_sec() / chars_per_sec; |
254 |
} |
255 |
|
256 |
r->vstart = vretr_start_line; |
257 |
r->vend = r->vstart + vretr_end_line + 1;
|
258 |
|
259 |
r->hstart = hretr_start_char + hretr_skew_chars; |
260 |
r->hend = r->hstart + hretr_end_char + 1;
|
261 |
r->htotal = htotal_chars; |
262 |
|
263 |
#if 0
|
264 |
div2 = (s->cr[0x17] >> 2) & 1;
|
265 |
sldiv2 = (s->cr[0x17] >> 3) & 1;
|
266 |
printf (
|
267 |
"hz=%f\n"
|
268 |
"htotal = %d\n"
|
269 |
"hretr_start = %d\n"
|
270 |
"hretr_skew = %d\n"
|
271 |
"hretr_end = %d\n"
|
272 |
"vtotal = %d\n"
|
273 |
"vretr_start = %d\n"
|
274 |
"vretr_end = %d\n"
|
275 |
"div2 = %d sldiv2 = %d\n"
|
276 |
"clocking_mode = %d\n"
|
277 |
"clock_sel = %d %d\n"
|
278 |
"dots = %d\n"
|
279 |
"ticks/char = %" PRId64 "\n"
|
280 |
"\n",
|
281 |
(double) get_ticks_per_sec() / (r->ticks_per_char * r->total_chars),
|
282 |
htotal_chars,
|
283 |
hretr_start_char,
|
284 |
hretr_skew_chars,
|
285 |
hretr_end_char,
|
286 |
vtotal_lines,
|
287 |
vretr_start_line,
|
288 |
vretr_end_line,
|
289 |
div2, sldiv2,
|
290 |
clocking_mode,
|
291 |
clock_sel,
|
292 |
clk_hz[clock_sel],
|
293 |
dots,
|
294 |
r->ticks_per_char
|
295 |
);
|
296 |
#endif
|
297 |
} |
298 |
|
299 |
static uint8_t vga_precise_retrace(VGACommonState *s)
|
300 |
{ |
301 |
struct vga_precise_retrace *r = &s->retrace_info.precise;
|
302 |
uint8_t val = s->st01 & ~(ST01_V_RETRACE | ST01_DISP_ENABLE); |
303 |
|
304 |
if (r->total_chars) {
|
305 |
int cur_line, cur_line_char, cur_char;
|
306 |
int64_t cur_tick; |
307 |
|
308 |
cur_tick = qemu_get_clock_ns(vm_clock); |
309 |
|
310 |
cur_char = (cur_tick / r->ticks_per_char) % r->total_chars; |
311 |
cur_line = cur_char / r->htotal; |
312 |
|
313 |
if (cur_line >= r->vstart && cur_line <= r->vend) {
|
314 |
val |= ST01_V_RETRACE | ST01_DISP_ENABLE; |
315 |
} else {
|
316 |
cur_line_char = cur_char % r->htotal; |
317 |
if (cur_line_char >= r->hstart && cur_line_char <= r->hend) {
|
318 |
val |= ST01_DISP_ENABLE; |
319 |
} |
320 |
} |
321 |
|
322 |
return val;
|
323 |
} else {
|
324 |
return s->st01 ^ (ST01_V_RETRACE | ST01_DISP_ENABLE);
|
325 |
} |
326 |
} |
327 |
|
328 |
static uint8_t vga_dumb_retrace(VGACommonState *s)
|
329 |
{ |
330 |
return s->st01 ^ (ST01_V_RETRACE | ST01_DISP_ENABLE);
|
331 |
} |
332 |
|
333 |
int vga_ioport_invalid(VGACommonState *s, uint32_t addr)
|
334 |
{ |
335 |
if (s->msr & MSR_COLOR_EMULATION) {
|
336 |
/* Color */
|
337 |
return (addr >= 0x3b0 && addr <= 0x3bf); |
338 |
} else {
|
339 |
/* Monochrome */
|
340 |
return (addr >= 0x3d0 && addr <= 0x3df); |
341 |
} |
342 |
} |
343 |
|
344 |
uint32_t vga_ioport_read(void *opaque, uint32_t addr)
|
345 |
{ |
346 |
VGACommonState *s = opaque; |
347 |
int val, index;
|
348 |
|
349 |
if (vga_ioport_invalid(s, addr)) {
|
350 |
val = 0xff;
|
351 |
} else {
|
352 |
switch(addr) {
|
353 |
case 0x3c0: |
354 |
if (s->ar_flip_flop == 0) { |
355 |
val = s->ar_index; |
356 |
} else {
|
357 |
val = 0;
|
358 |
} |
359 |
break;
|
360 |
case 0x3c1: |
361 |
index = s->ar_index & 0x1f;
|
362 |
if (index < 21) |
363 |
val = s->ar[index]; |
364 |
else
|
365 |
val = 0;
|
366 |
break;
|
367 |
case 0x3c2: |
368 |
val = s->st00; |
369 |
break;
|
370 |
case 0x3c4: |
371 |
val = s->sr_index; |
372 |
break;
|
373 |
case 0x3c5: |
374 |
val = s->sr[s->sr_index]; |
375 |
#ifdef DEBUG_VGA_REG
|
376 |
printf("vga: read SR%x = 0x%02x\n", s->sr_index, val);
|
377 |
#endif
|
378 |
break;
|
379 |
case 0x3c7: |
380 |
val = s->dac_state; |
381 |
break;
|
382 |
case 0x3c8: |
383 |
val = s->dac_write_index; |
384 |
break;
|
385 |
case 0x3c9: |
386 |
val = s->palette[s->dac_read_index * 3 + s->dac_sub_index];
|
387 |
if (++s->dac_sub_index == 3) { |
388 |
s->dac_sub_index = 0;
|
389 |
s->dac_read_index++; |
390 |
} |
391 |
break;
|
392 |
case 0x3ca: |
393 |
val = s->fcr; |
394 |
break;
|
395 |
case 0x3cc: |
396 |
val = s->msr; |
397 |
break;
|
398 |
case 0x3ce: |
399 |
val = s->gr_index; |
400 |
break;
|
401 |
case 0x3cf: |
402 |
val = s->gr[s->gr_index]; |
403 |
#ifdef DEBUG_VGA_REG
|
404 |
printf("vga: read GR%x = 0x%02x\n", s->gr_index, val);
|
405 |
#endif
|
406 |
break;
|
407 |
case 0x3b4: |
408 |
case 0x3d4: |
409 |
val = s->cr_index; |
410 |
break;
|
411 |
case 0x3b5: |
412 |
case 0x3d5: |
413 |
val = s->cr[s->cr_index]; |
414 |
#ifdef DEBUG_VGA_REG
|
415 |
printf("vga: read CR%x = 0x%02x\n", s->cr_index, val);
|
416 |
#endif
|
417 |
break;
|
418 |
case 0x3ba: |
419 |
case 0x3da: |
420 |
/* just toggle to fool polling */
|
421 |
val = s->st01 = s->retrace(s); |
422 |
s->ar_flip_flop = 0;
|
423 |
break;
|
424 |
default:
|
425 |
val = 0x00;
|
426 |
break;
|
427 |
} |
428 |
} |
429 |
#if defined(DEBUG_VGA)
|
430 |
printf("VGA: read addr=0x%04x data=0x%02x\n", addr, val);
|
431 |
#endif
|
432 |
return val;
|
433 |
} |
434 |
|
435 |
void vga_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
436 |
{ |
437 |
VGACommonState *s = opaque; |
438 |
int index;
|
439 |
|
440 |
/* check port range access depending on color/monochrome mode */
|
441 |
if (vga_ioport_invalid(s, addr)) {
|
442 |
return;
|
443 |
} |
444 |
#ifdef DEBUG_VGA
|
445 |
printf("VGA: write addr=0x%04x data=0x%02x\n", addr, val);
|
446 |
#endif
|
447 |
|
448 |
switch(addr) {
|
449 |
case 0x3c0: |
450 |
if (s->ar_flip_flop == 0) { |
451 |
val &= 0x3f;
|
452 |
s->ar_index = val; |
453 |
} else {
|
454 |
index = s->ar_index & 0x1f;
|
455 |
switch(index) {
|
456 |
case 0x00 ... 0x0f: |
457 |
s->ar[index] = val & 0x3f;
|
458 |
break;
|
459 |
case 0x10: |
460 |
s->ar[index] = val & ~0x10;
|
461 |
break;
|
462 |
case 0x11: |
463 |
s->ar[index] = val; |
464 |
break;
|
465 |
case 0x12: |
466 |
s->ar[index] = val & ~0xc0;
|
467 |
break;
|
468 |
case 0x13: |
469 |
s->ar[index] = val & ~0xf0;
|
470 |
break;
|
471 |
case 0x14: |
472 |
s->ar[index] = val & ~0xf0;
|
473 |
break;
|
474 |
default:
|
475 |
break;
|
476 |
} |
477 |
} |
478 |
s->ar_flip_flop ^= 1;
|
479 |
break;
|
480 |
case 0x3c2: |
481 |
s->msr = val & ~0x10;
|
482 |
s->update_retrace_info(s); |
483 |
break;
|
484 |
case 0x3c4: |
485 |
s->sr_index = val & 7;
|
486 |
break;
|
487 |
case 0x3c5: |
488 |
#ifdef DEBUG_VGA_REG
|
489 |
printf("vga: write SR%x = 0x%02x\n", s->sr_index, val);
|
490 |
#endif
|
491 |
s->sr[s->sr_index] = val & sr_mask[s->sr_index]; |
492 |
if (s->sr_index == 1) s->update_retrace_info(s); |
493 |
vga_update_memory_access(s); |
494 |
break;
|
495 |
case 0x3c7: |
496 |
s->dac_read_index = val; |
497 |
s->dac_sub_index = 0;
|
498 |
s->dac_state = 3;
|
499 |
break;
|
500 |
case 0x3c8: |
501 |
s->dac_write_index = val; |
502 |
s->dac_sub_index = 0;
|
503 |
s->dac_state = 0;
|
504 |
break;
|
505 |
case 0x3c9: |
506 |
s->dac_cache[s->dac_sub_index] = val; |
507 |
if (++s->dac_sub_index == 3) { |
508 |
memcpy(&s->palette[s->dac_write_index * 3], s->dac_cache, 3); |
509 |
s->dac_sub_index = 0;
|
510 |
s->dac_write_index++; |
511 |
} |
512 |
break;
|
513 |
case 0x3ce: |
514 |
s->gr_index = val & 0x0f;
|
515 |
break;
|
516 |
case 0x3cf: |
517 |
#ifdef DEBUG_VGA_REG
|
518 |
printf("vga: write GR%x = 0x%02x\n", s->gr_index, val);
|
519 |
#endif
|
520 |
s->gr[s->gr_index] = val & gr_mask[s->gr_index]; |
521 |
vga_update_memory_access(s); |
522 |
break;
|
523 |
case 0x3b4: |
524 |
case 0x3d4: |
525 |
s->cr_index = val; |
526 |
break;
|
527 |
case 0x3b5: |
528 |
case 0x3d5: |
529 |
#ifdef DEBUG_VGA_REG
|
530 |
printf("vga: write CR%x = 0x%02x\n", s->cr_index, val);
|
531 |
#endif
|
532 |
/* handle CR0-7 protection */
|
533 |
if ((s->cr[0x11] & 0x80) && s->cr_index <= 7) { |
534 |
/* can always write bit 4 of CR7 */
|
535 |
if (s->cr_index == 7) |
536 |
s->cr[7] = (s->cr[7] & ~0x10) | (val & 0x10); |
537 |
return;
|
538 |
} |
539 |
s->cr[s->cr_index] = val; |
540 |
|
541 |
switch(s->cr_index) {
|
542 |
case 0x00: |
543 |
case 0x04: |
544 |
case 0x05: |
545 |
case 0x06: |
546 |
case 0x07: |
547 |
case 0x11: |
548 |
case 0x17: |
549 |
s->update_retrace_info(s); |
550 |
break;
|
551 |
} |
552 |
break;
|
553 |
case 0x3ba: |
554 |
case 0x3da: |
555 |
s->fcr = val & 0x10;
|
556 |
break;
|
557 |
} |
558 |
} |
559 |
|
560 |
#ifdef CONFIG_BOCHS_VBE
|
561 |
static uint32_t vbe_ioport_read_index(void *opaque, uint32_t addr) |
562 |
{ |
563 |
VGACommonState *s = opaque; |
564 |
uint32_t val; |
565 |
val = s->vbe_index; |
566 |
return val;
|
567 |
} |
568 |
|
569 |
static uint32_t vbe_ioport_read_data(void *opaque, uint32_t addr) |
570 |
{ |
571 |
VGACommonState *s = opaque; |
572 |
uint32_t val; |
573 |
|
574 |
if (s->vbe_index < VBE_DISPI_INDEX_NB) {
|
575 |
if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_GETCAPS) {
|
576 |
switch(s->vbe_index) {
|
577 |
/* XXX: do not hardcode ? */
|
578 |
case VBE_DISPI_INDEX_XRES:
|
579 |
val = VBE_DISPI_MAX_XRES; |
580 |
break;
|
581 |
case VBE_DISPI_INDEX_YRES:
|
582 |
val = VBE_DISPI_MAX_YRES; |
583 |
break;
|
584 |
case VBE_DISPI_INDEX_BPP:
|
585 |
val = VBE_DISPI_MAX_BPP; |
586 |
break;
|
587 |
default:
|
588 |
val = s->vbe_regs[s->vbe_index]; |
589 |
break;
|
590 |
} |
591 |
} else {
|
592 |
val = s->vbe_regs[s->vbe_index]; |
593 |
} |
594 |
} else if (s->vbe_index == VBE_DISPI_INDEX_VIDEO_MEMORY_64K) { |
595 |
val = s->vram_size / (64 * 1024); |
596 |
} else {
|
597 |
val = 0;
|
598 |
} |
599 |
#ifdef DEBUG_BOCHS_VBE
|
600 |
printf("VBE: read index=0x%x val=0x%x\n", s->vbe_index, val);
|
601 |
#endif
|
602 |
return val;
|
603 |
} |
604 |
|
605 |
static void vbe_ioport_write_index(void *opaque, uint32_t addr, uint32_t val) |
606 |
{ |
607 |
VGACommonState *s = opaque; |
608 |
s->vbe_index = val; |
609 |
} |
610 |
|
611 |
static void vbe_ioport_write_data(void *opaque, uint32_t addr, uint32_t val) |
612 |
{ |
613 |
VGACommonState *s = opaque; |
614 |
|
615 |
if (s->vbe_index <= VBE_DISPI_INDEX_NB) {
|
616 |
#ifdef DEBUG_BOCHS_VBE
|
617 |
printf("VBE: write index=0x%x val=0x%x\n", s->vbe_index, val);
|
618 |
#endif
|
619 |
switch(s->vbe_index) {
|
620 |
case VBE_DISPI_INDEX_ID:
|
621 |
if (val == VBE_DISPI_ID0 ||
|
622 |
val == VBE_DISPI_ID1 || |
623 |
val == VBE_DISPI_ID2 || |
624 |
val == VBE_DISPI_ID3 || |
625 |
val == VBE_DISPI_ID4) { |
626 |
s->vbe_regs[s->vbe_index] = val; |
627 |
} |
628 |
break;
|
629 |
case VBE_DISPI_INDEX_XRES:
|
630 |
if ((val <= VBE_DISPI_MAX_XRES) && ((val & 7) == 0)) { |
631 |
s->vbe_regs[s->vbe_index] = val; |
632 |
} |
633 |
break;
|
634 |
case VBE_DISPI_INDEX_YRES:
|
635 |
if (val <= VBE_DISPI_MAX_YRES) {
|
636 |
s->vbe_regs[s->vbe_index] = val; |
637 |
} |
638 |
break;
|
639 |
case VBE_DISPI_INDEX_BPP:
|
640 |
if (val == 0) |
641 |
val = 8;
|
642 |
if (val == 4 || val == 8 || val == 15 || |
643 |
val == 16 || val == 24 || val == 32) { |
644 |
s->vbe_regs[s->vbe_index] = val; |
645 |
} |
646 |
break;
|
647 |
case VBE_DISPI_INDEX_BANK:
|
648 |
if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) { |
649 |
val &= (s->vbe_bank_mask >> 2);
|
650 |
} else {
|
651 |
val &= s->vbe_bank_mask; |
652 |
} |
653 |
s->vbe_regs[s->vbe_index] = val; |
654 |
s->bank_offset = (val << 16);
|
655 |
vga_update_memory_access(s); |
656 |
break;
|
657 |
case VBE_DISPI_INDEX_ENABLE:
|
658 |
if ((val & VBE_DISPI_ENABLED) &&
|
659 |
!(s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED)) { |
660 |
int h, shift_control;
|
661 |
|
662 |
s->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH] = |
663 |
s->vbe_regs[VBE_DISPI_INDEX_XRES]; |
664 |
s->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] = |
665 |
s->vbe_regs[VBE_DISPI_INDEX_YRES]; |
666 |
s->vbe_regs[VBE_DISPI_INDEX_X_OFFSET] = 0;
|
667 |
s->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET] = 0;
|
668 |
|
669 |
if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) |
670 |
s->vbe_line_offset = s->vbe_regs[VBE_DISPI_INDEX_XRES] >> 1;
|
671 |
else
|
672 |
s->vbe_line_offset = s->vbe_regs[VBE_DISPI_INDEX_XRES] * |
673 |
((s->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3); |
674 |
s->vbe_start_addr = 0;
|
675 |
|
676 |
/* clear the screen (should be done in BIOS) */
|
677 |
if (!(val & VBE_DISPI_NOCLEARMEM)) {
|
678 |
memset(s->vram_ptr, 0,
|
679 |
s->vbe_regs[VBE_DISPI_INDEX_YRES] * s->vbe_line_offset); |
680 |
} |
681 |
|
682 |
/* we initialize the VGA graphic mode (should be done
|
683 |
in BIOS) */
|
684 |
s->gr[0x06] = (s->gr[0x06] & ~0x0c) | 0x05; /* graphic mode + memory map 1 */ |
685 |
s->cr[0x17] |= 3; /* no CGA modes */ |
686 |
s->cr[0x13] = s->vbe_line_offset >> 3; |
687 |
/* width */
|
688 |
s->cr[0x01] = (s->vbe_regs[VBE_DISPI_INDEX_XRES] >> 3) - 1; |
689 |
/* height (only meaningful if < 1024) */
|
690 |
h = s->vbe_regs[VBE_DISPI_INDEX_YRES] - 1;
|
691 |
s->cr[0x12] = h;
|
692 |
s->cr[0x07] = (s->cr[0x07] & ~0x42) | |
693 |
((h >> 7) & 0x02) | ((h >> 3) & 0x40); |
694 |
/* line compare to 1023 */
|
695 |
s->cr[0x18] = 0xff; |
696 |
s->cr[0x07] |= 0x10; |
697 |
s->cr[0x09] |= 0x40; |
698 |
|
699 |
if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) { |
700 |
shift_control = 0;
|
701 |
s->sr[0x01] &= ~8; /* no double line */ |
702 |
} else {
|
703 |
shift_control = 2;
|
704 |
s->sr[4] |= 0x08; /* set chain 4 mode */ |
705 |
s->sr[2] |= 0x0f; /* activate all planes */ |
706 |
} |
707 |
s->gr[0x05] = (s->gr[0x05] & ~0x60) | (shift_control << 5); |
708 |
s->cr[0x09] &= ~0x9f; /* no double scan */ |
709 |
} else {
|
710 |
/* XXX: the bios should do that */
|
711 |
s->bank_offset = 0;
|
712 |
} |
713 |
s->dac_8bit = (val & VBE_DISPI_8BIT_DAC) > 0;
|
714 |
s->vbe_regs[s->vbe_index] = val; |
715 |
vga_update_memory_access(s); |
716 |
break;
|
717 |
case VBE_DISPI_INDEX_VIRT_WIDTH:
|
718 |
{ |
719 |
int w, h, line_offset;
|
720 |
|
721 |
if (val < s->vbe_regs[VBE_DISPI_INDEX_XRES])
|
722 |
return;
|
723 |
w = val; |
724 |
if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) |
725 |
line_offset = w >> 1;
|
726 |
else
|
727 |
line_offset = w * ((s->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3); |
728 |
h = s->vram_size / line_offset; |
729 |
/* XXX: support weird bochs semantics ? */
|
730 |
if (h < s->vbe_regs[VBE_DISPI_INDEX_YRES])
|
731 |
return;
|
732 |
s->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH] = w; |
733 |
s->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] = h; |
734 |
s->vbe_line_offset = line_offset; |
735 |
} |
736 |
break;
|
737 |
case VBE_DISPI_INDEX_X_OFFSET:
|
738 |
case VBE_DISPI_INDEX_Y_OFFSET:
|
739 |
{ |
740 |
int x;
|
741 |
s->vbe_regs[s->vbe_index] = val; |
742 |
s->vbe_start_addr = s->vbe_line_offset * s->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET]; |
743 |
x = s->vbe_regs[VBE_DISPI_INDEX_X_OFFSET]; |
744 |
if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4) |
745 |
s->vbe_start_addr += x >> 1;
|
746 |
else
|
747 |
s->vbe_start_addr += x * ((s->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3); |
748 |
s->vbe_start_addr >>= 2;
|
749 |
} |
750 |
break;
|
751 |
default:
|
752 |
break;
|
753 |
} |
754 |
} |
755 |
} |
756 |
#endif
|
757 |
|
758 |
/* called for accesses between 0xa0000 and 0xc0000 */
|
759 |
uint32_t vga_mem_readb(VGACommonState *s, target_phys_addr_t addr) |
760 |
{ |
761 |
int memory_map_mode, plane;
|
762 |
uint32_t ret; |
763 |
|
764 |
/* convert to VGA memory offset */
|
765 |
memory_map_mode = (s->gr[6] >> 2) & 3; |
766 |
addr &= 0x1ffff;
|
767 |
switch(memory_map_mode) {
|
768 |
case 0: |
769 |
break;
|
770 |
case 1: |
771 |
if (addr >= 0x10000) |
772 |
return 0xff; |
773 |
addr += s->bank_offset; |
774 |
break;
|
775 |
case 2: |
776 |
addr -= 0x10000;
|
777 |
if (addr >= 0x8000) |
778 |
return 0xff; |
779 |
break;
|
780 |
default:
|
781 |
case 3: |
782 |
addr -= 0x18000;
|
783 |
if (addr >= 0x8000) |
784 |
return 0xff; |
785 |
break;
|
786 |
} |
787 |
|
788 |
if (s->sr[4] & 0x08) { |
789 |
/* chain 4 mode : simplest access */
|
790 |
ret = s->vram_ptr[addr]; |
791 |
} else if (s->gr[5] & 0x10) { |
792 |
/* odd/even mode (aka text mode mapping) */
|
793 |
plane = (s->gr[4] & 2) | (addr & 1); |
794 |
ret = s->vram_ptr[((addr & ~1) << 1) | plane]; |
795 |
} else {
|
796 |
/* standard VGA latched access */
|
797 |
s->latch = ((uint32_t *)s->vram_ptr)[addr]; |
798 |
|
799 |
if (!(s->gr[5] & 0x08)) { |
800 |
/* read mode 0 */
|
801 |
plane = s->gr[4];
|
802 |
ret = GET_PLANE(s->latch, plane); |
803 |
} else {
|
804 |
/* read mode 1 */
|
805 |
ret = (s->latch ^ mask16[s->gr[2]]) & mask16[s->gr[7]]; |
806 |
ret |= ret >> 16;
|
807 |
ret |= ret >> 8;
|
808 |
ret = (~ret) & 0xff;
|
809 |
} |
810 |
} |
811 |
return ret;
|
812 |
} |
813 |
|
814 |
/* called for accesses between 0xa0000 and 0xc0000 */
|
815 |
void vga_mem_writeb(VGACommonState *s, target_phys_addr_t addr, uint32_t val)
|
816 |
{ |
817 |
int memory_map_mode, plane, write_mode, b, func_select, mask;
|
818 |
uint32_t write_mask, bit_mask, set_mask; |
819 |
|
820 |
#ifdef DEBUG_VGA_MEM
|
821 |
printf("vga: [0x" TARGET_FMT_plx "] = 0x%02x\n", addr, val); |
822 |
#endif
|
823 |
/* convert to VGA memory offset */
|
824 |
memory_map_mode = (s->gr[6] >> 2) & 3; |
825 |
addr &= 0x1ffff;
|
826 |
switch(memory_map_mode) {
|
827 |
case 0: |
828 |
break;
|
829 |
case 1: |
830 |
if (addr >= 0x10000) |
831 |
return;
|
832 |
addr += s->bank_offset; |
833 |
break;
|
834 |
case 2: |
835 |
addr -= 0x10000;
|
836 |
if (addr >= 0x8000) |
837 |
return;
|
838 |
break;
|
839 |
default:
|
840 |
case 3: |
841 |
addr -= 0x18000;
|
842 |
if (addr >= 0x8000) |
843 |
return;
|
844 |
break;
|
845 |
} |
846 |
|
847 |
if (s->sr[4] & 0x08) { |
848 |
/* chain 4 mode : simplest access */
|
849 |
plane = addr & 3;
|
850 |
mask = (1 << plane);
|
851 |
if (s->sr[2] & mask) { |
852 |
s->vram_ptr[addr] = val; |
853 |
#ifdef DEBUG_VGA_MEM
|
854 |
printf("vga: chain4: [0x" TARGET_FMT_plx "]\n", addr); |
855 |
#endif
|
856 |
s->plane_updated |= mask; /* only used to detect font change */
|
857 |
memory_region_set_dirty(&s->vram, addr); |
858 |
} |
859 |
} else if (s->gr[5] & 0x10) { |
860 |
/* odd/even mode (aka text mode mapping) */
|
861 |
plane = (s->gr[4] & 2) | (addr & 1); |
862 |
mask = (1 << plane);
|
863 |
if (s->sr[2] & mask) { |
864 |
addr = ((addr & ~1) << 1) | plane; |
865 |
s->vram_ptr[addr] = val; |
866 |
#ifdef DEBUG_VGA_MEM
|
867 |
printf("vga: odd/even: [0x" TARGET_FMT_plx "]\n", addr); |
868 |
#endif
|
869 |
s->plane_updated |= mask; /* only used to detect font change */
|
870 |
memory_region_set_dirty(&s->vram, addr); |
871 |
} |
872 |
} else {
|
873 |
/* standard VGA latched access */
|
874 |
write_mode = s->gr[5] & 3; |
875 |
switch(write_mode) {
|
876 |
default:
|
877 |
case 0: |
878 |
/* rotate */
|
879 |
b = s->gr[3] & 7; |
880 |
val = ((val >> b) | (val << (8 - b))) & 0xff; |
881 |
val |= val << 8;
|
882 |
val |= val << 16;
|
883 |
|
884 |
/* apply set/reset mask */
|
885 |
set_mask = mask16[s->gr[1]];
|
886 |
val = (val & ~set_mask) | (mask16[s->gr[0]] & set_mask);
|
887 |
bit_mask = s->gr[8];
|
888 |
break;
|
889 |
case 1: |
890 |
val = s->latch; |
891 |
goto do_write;
|
892 |
case 2: |
893 |
val = mask16[val & 0x0f];
|
894 |
bit_mask = s->gr[8];
|
895 |
break;
|
896 |
case 3: |
897 |
/* rotate */
|
898 |
b = s->gr[3] & 7; |
899 |
val = (val >> b) | (val << (8 - b));
|
900 |
|
901 |
bit_mask = s->gr[8] & val;
|
902 |
val = mask16[s->gr[0]];
|
903 |
break;
|
904 |
} |
905 |
|
906 |
/* apply logical operation */
|
907 |
func_select = s->gr[3] >> 3; |
908 |
switch(func_select) {
|
909 |
case 0: |
910 |
default:
|
911 |
/* nothing to do */
|
912 |
break;
|
913 |
case 1: |
914 |
/* and */
|
915 |
val &= s->latch; |
916 |
break;
|
917 |
case 2: |
918 |
/* or */
|
919 |
val |= s->latch; |
920 |
break;
|
921 |
case 3: |
922 |
/* xor */
|
923 |
val ^= s->latch; |
924 |
break;
|
925 |
} |
926 |
|
927 |
/* apply bit mask */
|
928 |
bit_mask |= bit_mask << 8;
|
929 |
bit_mask |= bit_mask << 16;
|
930 |
val = (val & bit_mask) | (s->latch & ~bit_mask); |
931 |
|
932 |
do_write:
|
933 |
/* mask data according to sr[2] */
|
934 |
mask = s->sr[2];
|
935 |
s->plane_updated |= mask; /* only used to detect font change */
|
936 |
write_mask = mask16[mask]; |
937 |
((uint32_t *)s->vram_ptr)[addr] = |
938 |
(((uint32_t *)s->vram_ptr)[addr] & ~write_mask) | |
939 |
(val & write_mask); |
940 |
#ifdef DEBUG_VGA_MEM
|
941 |
printf("vga: latch: [0x" TARGET_FMT_plx "] mask=0x%08x val=0x%08x\n", |
942 |
addr * 4, write_mask, val);
|
943 |
#endif
|
944 |
memory_region_set_dirty(&s->vram, addr << 2);
|
945 |
} |
946 |
} |
947 |
|
948 |
typedef void vga_draw_glyph8_func(uint8_t *d, int linesize, |
949 |
const uint8_t *font_ptr, int h, |
950 |
uint32_t fgcol, uint32_t bgcol); |
951 |
typedef void vga_draw_glyph9_func(uint8_t *d, int linesize, |
952 |
const uint8_t *font_ptr, int h, |
953 |
uint32_t fgcol, uint32_t bgcol, int dup9);
|
954 |
typedef void vga_draw_line_func(VGACommonState *s1, uint8_t *d, |
955 |
const uint8_t *s, int width); |
956 |
|
957 |
#define DEPTH 8 |
958 |
#include "vga_template.h" |
959 |
|
960 |
#define DEPTH 15 |
961 |
#include "vga_template.h" |
962 |
|
963 |
#define BGR_FORMAT
|
964 |
#define DEPTH 15 |
965 |
#include "vga_template.h" |
966 |
|
967 |
#define DEPTH 16 |
968 |
#include "vga_template.h" |
969 |
|
970 |
#define BGR_FORMAT
|
971 |
#define DEPTH 16 |
972 |
#include "vga_template.h" |
973 |
|
974 |
#define DEPTH 32 |
975 |
#include "vga_template.h" |
976 |
|
977 |
#define BGR_FORMAT
|
978 |
#define DEPTH 32 |
979 |
#include "vga_template.h" |
980 |
|
981 |
static unsigned int rgb_to_pixel8_dup(unsigned int r, unsigned int g, unsigned b) |
982 |
{ |
983 |
unsigned int col; |
984 |
col = rgb_to_pixel8(r, g, b); |
985 |
col |= col << 8;
|
986 |
col |= col << 16;
|
987 |
return col;
|
988 |
} |
989 |
|
990 |
static unsigned int rgb_to_pixel15_dup(unsigned int r, unsigned int g, unsigned b) |
991 |
{ |
992 |
unsigned int col; |
993 |
col = rgb_to_pixel15(r, g, b); |
994 |
col |= col << 16;
|
995 |
return col;
|
996 |
} |
997 |
|
998 |
static unsigned int rgb_to_pixel15bgr_dup(unsigned int r, unsigned int g, |
999 |
unsigned int b) |
1000 |
{ |
1001 |
unsigned int col; |
1002 |
col = rgb_to_pixel15bgr(r, g, b); |
1003 |
col |= col << 16;
|
1004 |
return col;
|
1005 |
} |
1006 |
|
1007 |
static unsigned int rgb_to_pixel16_dup(unsigned int r, unsigned int g, unsigned b) |
1008 |
{ |
1009 |
unsigned int col; |
1010 |
col = rgb_to_pixel16(r, g, b); |
1011 |
col |= col << 16;
|
1012 |
return col;
|
1013 |
} |
1014 |
|
1015 |
static unsigned int rgb_to_pixel16bgr_dup(unsigned int r, unsigned int g, |
1016 |
unsigned int b) |
1017 |
{ |
1018 |
unsigned int col; |
1019 |
col = rgb_to_pixel16bgr(r, g, b); |
1020 |
col |= col << 16;
|
1021 |
return col;
|
1022 |
} |
1023 |
|
1024 |
static unsigned int rgb_to_pixel32_dup(unsigned int r, unsigned int g, unsigned b) |
1025 |
{ |
1026 |
unsigned int col; |
1027 |
col = rgb_to_pixel32(r, g, b); |
1028 |
return col;
|
1029 |
} |
1030 |
|
1031 |
static unsigned int rgb_to_pixel32bgr_dup(unsigned int r, unsigned int g, unsigned b) |
1032 |
{ |
1033 |
unsigned int col; |
1034 |
col = rgb_to_pixel32bgr(r, g, b); |
1035 |
return col;
|
1036 |
} |
1037 |
|
1038 |
/* return true if the palette was modified */
|
1039 |
static int update_palette16(VGACommonState *s) |
1040 |
{ |
1041 |
int full_update, i;
|
1042 |
uint32_t v, col, *palette; |
1043 |
|
1044 |
full_update = 0;
|
1045 |
palette = s->last_palette; |
1046 |
for(i = 0; i < 16; i++) { |
1047 |
v = s->ar[i]; |
1048 |
if (s->ar[0x10] & 0x80) |
1049 |
v = ((s->ar[0x14] & 0xf) << 4) | (v & 0xf); |
1050 |
else
|
1051 |
v = ((s->ar[0x14] & 0xc) << 4) | (v & 0x3f); |
1052 |
v = v * 3;
|
1053 |
col = s->rgb_to_pixel(c6_to_8(s->palette[v]), |
1054 |
c6_to_8(s->palette[v + 1]),
|
1055 |
c6_to_8(s->palette[v + 2]));
|
1056 |
if (col != palette[i]) {
|
1057 |
full_update = 1;
|
1058 |
palette[i] = col; |
1059 |
} |
1060 |
} |
1061 |
return full_update;
|
1062 |
} |
1063 |
|
1064 |
/* return true if the palette was modified */
|
1065 |
static int update_palette256(VGACommonState *s) |
1066 |
{ |
1067 |
int full_update, i;
|
1068 |
uint32_t v, col, *palette; |
1069 |
|
1070 |
full_update = 0;
|
1071 |
palette = s->last_palette; |
1072 |
v = 0;
|
1073 |
for(i = 0; i < 256; i++) { |
1074 |
if (s->dac_8bit) {
|
1075 |
col = s->rgb_to_pixel(s->palette[v], |
1076 |
s->palette[v + 1],
|
1077 |
s->palette[v + 2]);
|
1078 |
} else {
|
1079 |
col = s->rgb_to_pixel(c6_to_8(s->palette[v]), |
1080 |
c6_to_8(s->palette[v + 1]),
|
1081 |
c6_to_8(s->palette[v + 2]));
|
1082 |
} |
1083 |
if (col != palette[i]) {
|
1084 |
full_update = 1;
|
1085 |
palette[i] = col; |
1086 |
} |
1087 |
v += 3;
|
1088 |
} |
1089 |
return full_update;
|
1090 |
} |
1091 |
|
1092 |
static void vga_get_offsets(VGACommonState *s, |
1093 |
uint32_t *pline_offset, |
1094 |
uint32_t *pstart_addr, |
1095 |
uint32_t *pline_compare) |
1096 |
{ |
1097 |
uint32_t start_addr, line_offset, line_compare; |
1098 |
#ifdef CONFIG_BOCHS_VBE
|
1099 |
if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
|
1100 |
line_offset = s->vbe_line_offset; |
1101 |
start_addr = s->vbe_start_addr; |
1102 |
line_compare = 65535;
|
1103 |
} else
|
1104 |
#endif
|
1105 |
{ |
1106 |
/* compute line_offset in bytes */
|
1107 |
line_offset = s->cr[0x13];
|
1108 |
line_offset <<= 3;
|
1109 |
|
1110 |
/* starting address */
|
1111 |
start_addr = s->cr[0x0d] | (s->cr[0x0c] << 8); |
1112 |
|
1113 |
/* line compare */
|
1114 |
line_compare = s->cr[0x18] |
|
1115 |
((s->cr[0x07] & 0x10) << 4) | |
1116 |
((s->cr[0x09] & 0x40) << 3); |
1117 |
} |
1118 |
*pline_offset = line_offset; |
1119 |
*pstart_addr = start_addr; |
1120 |
*pline_compare = line_compare; |
1121 |
} |
1122 |
|
1123 |
/* update start_addr and line_offset. Return TRUE if modified */
|
1124 |
static int update_basic_params(VGACommonState *s) |
1125 |
{ |
1126 |
int full_update;
|
1127 |
uint32_t start_addr, line_offset, line_compare; |
1128 |
|
1129 |
full_update = 0;
|
1130 |
|
1131 |
s->get_offsets(s, &line_offset, &start_addr, &line_compare); |
1132 |
|
1133 |
if (line_offset != s->line_offset ||
|
1134 |
start_addr != s->start_addr || |
1135 |
line_compare != s->line_compare) { |
1136 |
s->line_offset = line_offset; |
1137 |
s->start_addr = start_addr; |
1138 |
s->line_compare = line_compare; |
1139 |
full_update = 1;
|
1140 |
} |
1141 |
return full_update;
|
1142 |
} |
1143 |
|
1144 |
#define NB_DEPTHS 7 |
1145 |
|
1146 |
static inline int get_depth_index(DisplayState *s) |
1147 |
{ |
1148 |
switch(ds_get_bits_per_pixel(s)) {
|
1149 |
default:
|
1150 |
case 8: |
1151 |
return 0; |
1152 |
case 15: |
1153 |
return 1; |
1154 |
case 16: |
1155 |
return 2; |
1156 |
case 32: |
1157 |
if (is_surface_bgr(s->surface))
|
1158 |
return 4; |
1159 |
else
|
1160 |
return 3; |
1161 |
} |
1162 |
} |
1163 |
|
1164 |
static vga_draw_glyph8_func * const vga_draw_glyph8_table[NB_DEPTHS] = { |
1165 |
vga_draw_glyph8_8, |
1166 |
vga_draw_glyph8_16, |
1167 |
vga_draw_glyph8_16, |
1168 |
vga_draw_glyph8_32, |
1169 |
vga_draw_glyph8_32, |
1170 |
vga_draw_glyph8_16, |
1171 |
vga_draw_glyph8_16, |
1172 |
}; |
1173 |
|
1174 |
static vga_draw_glyph8_func * const vga_draw_glyph16_table[NB_DEPTHS] = { |
1175 |
vga_draw_glyph16_8, |
1176 |
vga_draw_glyph16_16, |
1177 |
vga_draw_glyph16_16, |
1178 |
vga_draw_glyph16_32, |
1179 |
vga_draw_glyph16_32, |
1180 |
vga_draw_glyph16_16, |
1181 |
vga_draw_glyph16_16, |
1182 |
}; |
1183 |
|
1184 |
static vga_draw_glyph9_func * const vga_draw_glyph9_table[NB_DEPTHS] = { |
1185 |
vga_draw_glyph9_8, |
1186 |
vga_draw_glyph9_16, |
1187 |
vga_draw_glyph9_16, |
1188 |
vga_draw_glyph9_32, |
1189 |
vga_draw_glyph9_32, |
1190 |
vga_draw_glyph9_16, |
1191 |
vga_draw_glyph9_16, |
1192 |
}; |
1193 |
|
1194 |
static const uint8_t cursor_glyph[32 * 4] = { |
1195 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1196 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1197 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1198 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1199 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1200 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1201 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1202 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1203 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1204 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1205 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1206 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1207 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1208 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1209 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1210 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
1211 |
}; |
1212 |
|
1213 |
static void vga_get_text_resolution(VGACommonState *s, int *pwidth, int *pheight, |
1214 |
int *pcwidth, int *pcheight) |
1215 |
{ |
1216 |
int width, cwidth, height, cheight;
|
1217 |
|
1218 |
/* total width & height */
|
1219 |
cheight = (s->cr[9] & 0x1f) + 1; |
1220 |
cwidth = 8;
|
1221 |
if (!(s->sr[1] & 0x01)) |
1222 |
cwidth = 9;
|
1223 |
if (s->sr[1] & 0x08) |
1224 |
cwidth = 16; /* NOTE: no 18 pixel wide */ |
1225 |
width = (s->cr[0x01] + 1); |
1226 |
if (s->cr[0x06] == 100) { |
1227 |
/* ugly hack for CGA 160x100x16 - explain me the logic */
|
1228 |
height = 100;
|
1229 |
} else {
|
1230 |
height = s->cr[0x12] |
|
1231 |
((s->cr[0x07] & 0x02) << 7) | |
1232 |
((s->cr[0x07] & 0x40) << 3); |
1233 |
height = (height + 1) / cheight;
|
1234 |
} |
1235 |
|
1236 |
*pwidth = width; |
1237 |
*pheight = height; |
1238 |
*pcwidth = cwidth; |
1239 |
*pcheight = cheight; |
1240 |
} |
1241 |
|
1242 |
typedef unsigned int rgb_to_pixel_dup_func(unsigned int r, unsigned int g, unsigned b); |
1243 |
|
1244 |
static rgb_to_pixel_dup_func * const rgb_to_pixel_dup_table[NB_DEPTHS] = { |
1245 |
rgb_to_pixel8_dup, |
1246 |
rgb_to_pixel15_dup, |
1247 |
rgb_to_pixel16_dup, |
1248 |
rgb_to_pixel32_dup, |
1249 |
rgb_to_pixel32bgr_dup, |
1250 |
rgb_to_pixel15bgr_dup, |
1251 |
rgb_to_pixel16bgr_dup, |
1252 |
}; |
1253 |
|
1254 |
/*
|
1255 |
* Text mode update
|
1256 |
* Missing:
|
1257 |
* - double scan
|
1258 |
* - double width
|
1259 |
* - underline
|
1260 |
* - flashing
|
1261 |
*/
|
1262 |
static void vga_draw_text(VGACommonState *s, int full_update) |
1263 |
{ |
1264 |
int cx, cy, cheight, cw, ch, cattr, height, width, ch_attr;
|
1265 |
int cx_min, cx_max, linesize, x_incr, line, line1;
|
1266 |
uint32_t offset, fgcol, bgcol, v, cursor_offset; |
1267 |
uint8_t *d1, *d, *src, *dest, *cursor_ptr; |
1268 |
const uint8_t *font_ptr, *font_base[2]; |
1269 |
int dup9, line_offset, depth_index;
|
1270 |
uint32_t *palette; |
1271 |
uint32_t *ch_attr_ptr; |
1272 |
vga_draw_glyph8_func *vga_draw_glyph8; |
1273 |
vga_draw_glyph9_func *vga_draw_glyph9; |
1274 |
|
1275 |
/* compute font data address (in plane 2) */
|
1276 |
v = s->sr[3];
|
1277 |
offset = (((v >> 4) & 1) | ((v << 1) & 6)) * 8192 * 4 + 2; |
1278 |
if (offset != s->font_offsets[0]) { |
1279 |
s->font_offsets[0] = offset;
|
1280 |
full_update = 1;
|
1281 |
} |
1282 |
font_base[0] = s->vram_ptr + offset;
|
1283 |
|
1284 |
offset = (((v >> 5) & 1) | ((v >> 1) & 6)) * 8192 * 4 + 2; |
1285 |
font_base[1] = s->vram_ptr + offset;
|
1286 |
if (offset != s->font_offsets[1]) { |
1287 |
s->font_offsets[1] = offset;
|
1288 |
full_update = 1;
|
1289 |
} |
1290 |
if (s->plane_updated & (1 << 2) || s->chain4_alias) { |
1291 |
/* if the plane 2 was modified since the last display, it
|
1292 |
indicates the font may have been modified */
|
1293 |
s->plane_updated = 0;
|
1294 |
full_update = 1;
|
1295 |
} |
1296 |
full_update |= update_basic_params(s); |
1297 |
|
1298 |
line_offset = s->line_offset; |
1299 |
|
1300 |
vga_get_text_resolution(s, &width, &height, &cw, &cheight); |
1301 |
if ((height * width) > CH_ATTR_SIZE) {
|
1302 |
/* better than nothing: exit if transient size is too big */
|
1303 |
return;
|
1304 |
} |
1305 |
|
1306 |
if (width != s->last_width || height != s->last_height ||
|
1307 |
cw != s->last_cw || cheight != s->last_ch || s->last_depth) { |
1308 |
s->last_scr_width = width * cw; |
1309 |
s->last_scr_height = height * cheight; |
1310 |
qemu_console_resize(s->ds, s->last_scr_width, s->last_scr_height); |
1311 |
s->last_depth = 0;
|
1312 |
s->last_width = width; |
1313 |
s->last_height = height; |
1314 |
s->last_ch = cheight; |
1315 |
s->last_cw = cw; |
1316 |
full_update = 1;
|
1317 |
} |
1318 |
s->rgb_to_pixel = |
1319 |
rgb_to_pixel_dup_table[get_depth_index(s->ds)]; |
1320 |
full_update |= update_palette16(s); |
1321 |
palette = s->last_palette; |
1322 |
x_incr = cw * ((ds_get_bits_per_pixel(s->ds) + 7) >> 3); |
1323 |
|
1324 |
cursor_offset = ((s->cr[0x0e] << 8) | s->cr[0x0f]) - s->start_addr; |
1325 |
if (cursor_offset != s->cursor_offset ||
|
1326 |
s->cr[0xa] != s->cursor_start ||
|
1327 |
s->cr[0xb] != s->cursor_end) {
|
1328 |
/* if the cursor position changed, we update the old and new
|
1329 |
chars */
|
1330 |
if (s->cursor_offset < CH_ATTR_SIZE)
|
1331 |
s->last_ch_attr[s->cursor_offset] = -1;
|
1332 |
if (cursor_offset < CH_ATTR_SIZE)
|
1333 |
s->last_ch_attr[cursor_offset] = -1;
|
1334 |
s->cursor_offset = cursor_offset; |
1335 |
s->cursor_start = s->cr[0xa];
|
1336 |
s->cursor_end = s->cr[0xb];
|
1337 |
} |
1338 |
cursor_ptr = s->vram_ptr + (s->start_addr + cursor_offset) * 4;
|
1339 |
|
1340 |
depth_index = get_depth_index(s->ds); |
1341 |
if (cw == 16) |
1342 |
vga_draw_glyph8 = vga_draw_glyph16_table[depth_index]; |
1343 |
else
|
1344 |
vga_draw_glyph8 = vga_draw_glyph8_table[depth_index]; |
1345 |
vga_draw_glyph9 = vga_draw_glyph9_table[depth_index]; |
1346 |
|
1347 |
dest = ds_get_data(s->ds); |
1348 |
linesize = ds_get_linesize(s->ds); |
1349 |
ch_attr_ptr = s->last_ch_attr; |
1350 |
line = 0;
|
1351 |
offset = s->start_addr * 4;
|
1352 |
for(cy = 0; cy < height; cy++) { |
1353 |
d1 = dest; |
1354 |
src = s->vram_ptr + offset; |
1355 |
cx_min = width; |
1356 |
cx_max = -1;
|
1357 |
for(cx = 0; cx < width; cx++) { |
1358 |
ch_attr = *(uint16_t *)src; |
1359 |
if (full_update || ch_attr != *ch_attr_ptr) {
|
1360 |
if (cx < cx_min)
|
1361 |
cx_min = cx; |
1362 |
if (cx > cx_max)
|
1363 |
cx_max = cx; |
1364 |
*ch_attr_ptr = ch_attr; |
1365 |
#ifdef HOST_WORDS_BIGENDIAN
|
1366 |
ch = ch_attr >> 8;
|
1367 |
cattr = ch_attr & 0xff;
|
1368 |
#else
|
1369 |
ch = ch_attr & 0xff;
|
1370 |
cattr = ch_attr >> 8;
|
1371 |
#endif
|
1372 |
font_ptr = font_base[(cattr >> 3) & 1]; |
1373 |
font_ptr += 32 * 4 * ch; |
1374 |
bgcol = palette[cattr >> 4];
|
1375 |
fgcol = palette[cattr & 0x0f];
|
1376 |
if (cw != 9) { |
1377 |
vga_draw_glyph8(d1, linesize, |
1378 |
font_ptr, cheight, fgcol, bgcol); |
1379 |
} else {
|
1380 |
dup9 = 0;
|
1381 |
if (ch >= 0xb0 && ch <= 0xdf && (s->ar[0x10] & 0x04)) |
1382 |
dup9 = 1;
|
1383 |
vga_draw_glyph9(d1, linesize, |
1384 |
font_ptr, cheight, fgcol, bgcol, dup9); |
1385 |
} |
1386 |
if (src == cursor_ptr &&
|
1387 |
!(s->cr[0x0a] & 0x20)) { |
1388 |
int line_start, line_last, h;
|
1389 |
/* draw the cursor */
|
1390 |
line_start = s->cr[0x0a] & 0x1f; |
1391 |
line_last = s->cr[0x0b] & 0x1f; |
1392 |
/* XXX: check that */
|
1393 |
if (line_last > cheight - 1) |
1394 |
line_last = cheight - 1;
|
1395 |
if (line_last >= line_start && line_start < cheight) {
|
1396 |
h = line_last - line_start + 1;
|
1397 |
d = d1 + linesize * line_start; |
1398 |
if (cw != 9) { |
1399 |
vga_draw_glyph8(d, linesize, |
1400 |
cursor_glyph, h, fgcol, bgcol); |
1401 |
} else {
|
1402 |
vga_draw_glyph9(d, linesize, |
1403 |
cursor_glyph, h, fgcol, bgcol, 1);
|
1404 |
} |
1405 |
} |
1406 |
} |
1407 |
} |
1408 |
d1 += x_incr; |
1409 |
src += 4;
|
1410 |
ch_attr_ptr++; |
1411 |
} |
1412 |
if (cx_max != -1) { |
1413 |
dpy_update(s->ds, cx_min * cw, cy * cheight, |
1414 |
(cx_max - cx_min + 1) * cw, cheight);
|
1415 |
} |
1416 |
dest += linesize * cheight; |
1417 |
line1 = line + cheight; |
1418 |
offset += line_offset; |
1419 |
if (line < s->line_compare && line1 >= s->line_compare) {
|
1420 |
offset = 0;
|
1421 |
} |
1422 |
line = line1; |
1423 |
} |
1424 |
} |
1425 |
|
1426 |
enum {
|
1427 |
VGA_DRAW_LINE2, |
1428 |
VGA_DRAW_LINE2D2, |
1429 |
VGA_DRAW_LINE4, |
1430 |
VGA_DRAW_LINE4D2, |
1431 |
VGA_DRAW_LINE8D2, |
1432 |
VGA_DRAW_LINE8, |
1433 |
VGA_DRAW_LINE15, |
1434 |
VGA_DRAW_LINE16, |
1435 |
VGA_DRAW_LINE24, |
1436 |
VGA_DRAW_LINE32, |
1437 |
VGA_DRAW_LINE_NB, |
1438 |
}; |
1439 |
|
1440 |
static vga_draw_line_func * const vga_draw_line_table[NB_DEPTHS * VGA_DRAW_LINE_NB] = { |
1441 |
vga_draw_line2_8, |
1442 |
vga_draw_line2_16, |
1443 |
vga_draw_line2_16, |
1444 |
vga_draw_line2_32, |
1445 |
vga_draw_line2_32, |
1446 |
vga_draw_line2_16, |
1447 |
vga_draw_line2_16, |
1448 |
|
1449 |
vga_draw_line2d2_8, |
1450 |
vga_draw_line2d2_16, |
1451 |
vga_draw_line2d2_16, |
1452 |
vga_draw_line2d2_32, |
1453 |
vga_draw_line2d2_32, |
1454 |
vga_draw_line2d2_16, |
1455 |
vga_draw_line2d2_16, |
1456 |
|
1457 |
vga_draw_line4_8, |
1458 |
vga_draw_line4_16, |
1459 |
vga_draw_line4_16, |
1460 |
vga_draw_line4_32, |
1461 |
vga_draw_line4_32, |
1462 |
vga_draw_line4_16, |
1463 |
vga_draw_line4_16, |
1464 |
|
1465 |
vga_draw_line4d2_8, |
1466 |
vga_draw_line4d2_16, |
1467 |
vga_draw_line4d2_16, |
1468 |
vga_draw_line4d2_32, |
1469 |
vga_draw_line4d2_32, |
1470 |
vga_draw_line4d2_16, |
1471 |
vga_draw_line4d2_16, |
1472 |
|
1473 |
vga_draw_line8d2_8, |
1474 |
vga_draw_line8d2_16, |
1475 |
vga_draw_line8d2_16, |
1476 |
vga_draw_line8d2_32, |
1477 |
vga_draw_line8d2_32, |
1478 |
vga_draw_line8d2_16, |
1479 |
vga_draw_line8d2_16, |
1480 |
|
1481 |
vga_draw_line8_8, |
1482 |
vga_draw_line8_16, |
1483 |
vga_draw_line8_16, |
1484 |
vga_draw_line8_32, |
1485 |
vga_draw_line8_32, |
1486 |
vga_draw_line8_16, |
1487 |
vga_draw_line8_16, |
1488 |
|
1489 |
vga_draw_line15_8, |
1490 |
vga_draw_line15_15, |
1491 |
vga_draw_line15_16, |
1492 |
vga_draw_line15_32, |
1493 |
vga_draw_line15_32bgr, |
1494 |
vga_draw_line15_15bgr, |
1495 |
vga_draw_line15_16bgr, |
1496 |
|
1497 |
vga_draw_line16_8, |
1498 |
vga_draw_line16_15, |
1499 |
vga_draw_line16_16, |
1500 |
vga_draw_line16_32, |
1501 |
vga_draw_line16_32bgr, |
1502 |
vga_draw_line16_15bgr, |
1503 |
vga_draw_line16_16bgr, |
1504 |
|
1505 |
vga_draw_line24_8, |
1506 |
vga_draw_line24_15, |
1507 |
vga_draw_line24_16, |
1508 |
vga_draw_line24_32, |
1509 |
vga_draw_line24_32bgr, |
1510 |
vga_draw_line24_15bgr, |
1511 |
vga_draw_line24_16bgr, |
1512 |
|
1513 |
vga_draw_line32_8, |
1514 |
vga_draw_line32_15, |
1515 |
vga_draw_line32_16, |
1516 |
vga_draw_line32_32, |
1517 |
vga_draw_line32_32bgr, |
1518 |
vga_draw_line32_15bgr, |
1519 |
vga_draw_line32_16bgr, |
1520 |
}; |
1521 |
|
1522 |
static int vga_get_bpp(VGACommonState *s) |
1523 |
{ |
1524 |
int ret;
|
1525 |
#ifdef CONFIG_BOCHS_VBE
|
1526 |
if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
|
1527 |
ret = s->vbe_regs[VBE_DISPI_INDEX_BPP]; |
1528 |
} else
|
1529 |
#endif
|
1530 |
{ |
1531 |
ret = 0;
|
1532 |
} |
1533 |
return ret;
|
1534 |
} |
1535 |
|
1536 |
static void vga_get_resolution(VGACommonState *s, int *pwidth, int *pheight) |
1537 |
{ |
1538 |
int width, height;
|
1539 |
|
1540 |
#ifdef CONFIG_BOCHS_VBE
|
1541 |
if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {
|
1542 |
width = s->vbe_regs[VBE_DISPI_INDEX_XRES]; |
1543 |
height = s->vbe_regs[VBE_DISPI_INDEX_YRES]; |
1544 |
} else
|
1545 |
#endif
|
1546 |
{ |
1547 |
width = (s->cr[0x01] + 1) * 8; |
1548 |
height = s->cr[0x12] |
|
1549 |
((s->cr[0x07] & 0x02) << 7) | |
1550 |
((s->cr[0x07] & 0x40) << 3); |
1551 |
height = (height + 1);
|
1552 |
} |
1553 |
*pwidth = width; |
1554 |
*pheight = height; |
1555 |
} |
1556 |
|
1557 |
void vga_invalidate_scanlines(VGACommonState *s, int y1, int y2) |
1558 |
{ |
1559 |
int y;
|
1560 |
if (y1 >= VGA_MAX_HEIGHT)
|
1561 |
return;
|
1562 |
if (y2 >= VGA_MAX_HEIGHT)
|
1563 |
y2 = VGA_MAX_HEIGHT; |
1564 |
for(y = y1; y < y2; y++) {
|
1565 |
s->invalidated_y_table[y >> 5] |= 1 << (y & 0x1f); |
1566 |
} |
1567 |
} |
1568 |
|
1569 |
static void vga_sync_dirty_bitmap(VGACommonState *s) |
1570 |
{ |
1571 |
memory_region_sync_dirty_bitmap(&s->vram); |
1572 |
} |
1573 |
|
1574 |
void vga_dirty_log_start(VGACommonState *s)
|
1575 |
{ |
1576 |
memory_region_set_log(&s->vram, true, DIRTY_MEMORY_VGA);
|
1577 |
} |
1578 |
|
1579 |
void vga_dirty_log_stop(VGACommonState *s)
|
1580 |
{ |
1581 |
memory_region_set_log(&s->vram, false, DIRTY_MEMORY_VGA);
|
1582 |
} |
1583 |
|
1584 |
/*
|
1585 |
* graphic modes
|
1586 |
*/
|
1587 |
static void vga_draw_graphic(VGACommonState *s, int full_update) |
1588 |
{ |
1589 |
int y1, y, update, linesize, y_start, double_scan, mask, depth;
|
1590 |
int width, height, shift_control, line_offset, bwidth, bits;
|
1591 |
ram_addr_t page0, page1, page_min, page_max; |
1592 |
int disp_width, multi_scan, multi_run;
|
1593 |
uint8_t *d; |
1594 |
uint32_t v, addr1, addr; |
1595 |
vga_draw_line_func *vga_draw_line; |
1596 |
|
1597 |
full_update |= update_basic_params(s); |
1598 |
|
1599 |
if (!full_update)
|
1600 |
vga_sync_dirty_bitmap(s); |
1601 |
|
1602 |
s->get_resolution(s, &width, &height); |
1603 |
disp_width = width; |
1604 |
|
1605 |
shift_control = (s->gr[0x05] >> 5) & 3; |
1606 |
double_scan = (s->cr[0x09] >> 7); |
1607 |
if (shift_control != 1) { |
1608 |
multi_scan = (((s->cr[0x09] & 0x1f) + 1) << double_scan) - 1; |
1609 |
} else {
|
1610 |
/* in CGA modes, multi_scan is ignored */
|
1611 |
/* XXX: is it correct ? */
|
1612 |
multi_scan = double_scan; |
1613 |
} |
1614 |
multi_run = multi_scan; |
1615 |
if (shift_control != s->shift_control ||
|
1616 |
double_scan != s->double_scan) { |
1617 |
full_update = 1;
|
1618 |
s->shift_control = shift_control; |
1619 |
s->double_scan = double_scan; |
1620 |
} |
1621 |
|
1622 |
if (shift_control == 0) { |
1623 |
if (s->sr[0x01] & 8) { |
1624 |
disp_width <<= 1;
|
1625 |
} |
1626 |
} else if (shift_control == 1) { |
1627 |
if (s->sr[0x01] & 8) { |
1628 |
disp_width <<= 1;
|
1629 |
} |
1630 |
} |
1631 |
|
1632 |
depth = s->get_bpp(s); |
1633 |
if (s->line_offset != s->last_line_offset ||
|
1634 |
disp_width != s->last_width || |
1635 |
height != s->last_height || |
1636 |
s->last_depth != depth) { |
1637 |
#if defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
|
1638 |
if (depth == 16 || depth == 32) { |
1639 |
#else
|
1640 |
if (depth == 32) { |
1641 |
#endif
|
1642 |
qemu_free_displaysurface(s->ds); |
1643 |
s->ds->surface = qemu_create_displaysurface_from(disp_width, height, depth, |
1644 |
s->line_offset, |
1645 |
s->vram_ptr + (s->start_addr * 4));
|
1646 |
#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
|
1647 |
s->ds->surface->pf = qemu_different_endianness_pixelformat(depth); |
1648 |
#endif
|
1649 |
dpy_resize(s->ds); |
1650 |
} else {
|
1651 |
qemu_console_resize(s->ds, disp_width, height); |
1652 |
} |
1653 |
s->last_scr_width = disp_width; |
1654 |
s->last_scr_height = height; |
1655 |
s->last_width = disp_width; |
1656 |
s->last_height = height; |
1657 |
s->last_line_offset = s->line_offset; |
1658 |
s->last_depth = depth; |
1659 |
full_update = 1;
|
1660 |
} else if (is_buffer_shared(s->ds->surface) && |
1661 |
(full_update || s->ds->surface->data != s->vram_ptr + (s->start_addr * 4))) {
|
1662 |
s->ds->surface->data = s->vram_ptr + (s->start_addr * 4);
|
1663 |
dpy_setdata(s->ds); |
1664 |
} |
1665 |
|
1666 |
s->rgb_to_pixel = |
1667 |
rgb_to_pixel_dup_table[get_depth_index(s->ds)]; |
1668 |
|
1669 |
if (shift_control == 0) { |
1670 |
full_update |= update_palette16(s); |
1671 |
if (s->sr[0x01] & 8) { |
1672 |
v = VGA_DRAW_LINE4D2; |
1673 |
} else {
|
1674 |
v = VGA_DRAW_LINE4; |
1675 |
} |
1676 |
bits = 4;
|
1677 |
} else if (shift_control == 1) { |
1678 |
full_update |= update_palette16(s); |
1679 |
if (s->sr[0x01] & 8) { |
1680 |
v = VGA_DRAW_LINE2D2; |
1681 |
} else {
|
1682 |
v = VGA_DRAW_LINE2; |
1683 |
} |
1684 |
bits = 4;
|
1685 |
} else {
|
1686 |
switch(s->get_bpp(s)) {
|
1687 |
default:
|
1688 |
case 0: |
1689 |
full_update |= update_palette256(s); |
1690 |
v = VGA_DRAW_LINE8D2; |
1691 |
bits = 4;
|
1692 |
break;
|
1693 |
case 8: |
1694 |
full_update |= update_palette256(s); |
1695 |
v = VGA_DRAW_LINE8; |
1696 |
bits = 8;
|
1697 |
break;
|
1698 |
case 15: |
1699 |
v = VGA_DRAW_LINE15; |
1700 |
bits = 16;
|
1701 |
break;
|
1702 |
case 16: |
1703 |
v = VGA_DRAW_LINE16; |
1704 |
bits = 16;
|
1705 |
break;
|
1706 |
case 24: |
1707 |
v = VGA_DRAW_LINE24; |
1708 |
bits = 24;
|
1709 |
break;
|
1710 |
case 32: |
1711 |
v = VGA_DRAW_LINE32; |
1712 |
bits = 32;
|
1713 |
break;
|
1714 |
} |
1715 |
} |
1716 |
vga_draw_line = vga_draw_line_table[v * NB_DEPTHS + get_depth_index(s->ds)]; |
1717 |
|
1718 |
if (!is_buffer_shared(s->ds->surface) && s->cursor_invalidate)
|
1719 |
s->cursor_invalidate(s); |
1720 |
|
1721 |
line_offset = s->line_offset; |
1722 |
#if 0
|
1723 |
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",
|
1724 |
width, height, v, line_offset, s->cr[9], s->cr[0x17], s->line_compare, s->sr[0x01]);
|
1725 |
#endif
|
1726 |
addr1 = (s->start_addr * 4);
|
1727 |
bwidth = (width * bits + 7) / 8; |
1728 |
y_start = -1;
|
1729 |
page_min = -1;
|
1730 |
page_max = 0;
|
1731 |
d = ds_get_data(s->ds); |
1732 |
linesize = ds_get_linesize(s->ds); |
1733 |
y1 = 0;
|
1734 |
for(y = 0; y < height; y++) { |
1735 |
addr = addr1; |
1736 |
if (!(s->cr[0x17] & 1)) { |
1737 |
int shift;
|
1738 |
/* CGA compatibility handling */
|
1739 |
shift = 14 + ((s->cr[0x17] >> 6) & 1); |
1740 |
addr = (addr & ~(1 << shift)) | ((y1 & 1) << shift); |
1741 |
} |
1742 |
if (!(s->cr[0x17] & 2)) { |
1743 |
addr = (addr & ~0x8000) | ((y1 & 2) << 14); |
1744 |
} |
1745 |
page0 = addr & TARGET_PAGE_MASK; |
1746 |
page1 = (addr + bwidth - 1) & TARGET_PAGE_MASK;
|
1747 |
update = full_update | |
1748 |
memory_region_get_dirty(&s->vram, page0, DIRTY_MEMORY_VGA) | |
1749 |
memory_region_get_dirty(&s->vram, page1, DIRTY_MEMORY_VGA); |
1750 |
if ((page1 - page0) > TARGET_PAGE_SIZE) {
|
1751 |
/* if wide line, can use another page */
|
1752 |
update |= memory_region_get_dirty(&s->vram, |
1753 |
page0 + TARGET_PAGE_SIZE, |
1754 |
DIRTY_MEMORY_VGA); |
1755 |
} |
1756 |
/* explicit invalidation for the hardware cursor */
|
1757 |
update |= (s->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1; |
1758 |
if (update) {
|
1759 |
if (y_start < 0) |
1760 |
y_start = y; |
1761 |
if (page0 < page_min)
|
1762 |
page_min = page0; |
1763 |
if (page1 > page_max)
|
1764 |
page_max = page1; |
1765 |
if (!(is_buffer_shared(s->ds->surface))) {
|
1766 |
vga_draw_line(s, d, s->vram_ptr + addr, width); |
1767 |
if (s->cursor_draw_line)
|
1768 |
s->cursor_draw_line(s, d, y); |
1769 |
} |
1770 |
} else {
|
1771 |
if (y_start >= 0) { |
1772 |
/* flush to display */
|
1773 |
dpy_update(s->ds, 0, y_start,
|
1774 |
disp_width, y - y_start); |
1775 |
y_start = -1;
|
1776 |
} |
1777 |
} |
1778 |
if (!multi_run) {
|
1779 |
mask = (s->cr[0x17] & 3) ^ 3; |
1780 |
if ((y1 & mask) == mask)
|
1781 |
addr1 += line_offset; |
1782 |
y1++; |
1783 |
multi_run = multi_scan; |
1784 |
} else {
|
1785 |
multi_run--; |
1786 |
} |
1787 |
/* line compare acts on the displayed lines */
|
1788 |
if (y == s->line_compare)
|
1789 |
addr1 = 0;
|
1790 |
d += linesize; |
1791 |
} |
1792 |
if (y_start >= 0) { |
1793 |
/* flush to display */
|
1794 |
dpy_update(s->ds, 0, y_start,
|
1795 |
disp_width, y - y_start); |
1796 |
} |
1797 |
/* reset modified pages */
|
1798 |
if (page_max >= page_min) {
|
1799 |
memory_region_reset_dirty(&s->vram, |
1800 |
page_min, |
1801 |
page_max + TARGET_PAGE_SIZE - page_min, |
1802 |
DIRTY_MEMORY_VGA); |
1803 |
} |
1804 |
memset(s->invalidated_y_table, 0, ((height + 31) >> 5) * 4); |
1805 |
} |
1806 |
|
1807 |
static void vga_draw_blank(VGACommonState *s, int full_update) |
1808 |
{ |
1809 |
int i, w, val;
|
1810 |
uint8_t *d; |
1811 |
|
1812 |
if (!full_update)
|
1813 |
return;
|
1814 |
if (s->last_scr_width <= 0 || s->last_scr_height <= 0) |
1815 |
return;
|
1816 |
|
1817 |
s->rgb_to_pixel = |
1818 |
rgb_to_pixel_dup_table[get_depth_index(s->ds)]; |
1819 |
if (ds_get_bits_per_pixel(s->ds) == 8) |
1820 |
val = s->rgb_to_pixel(0, 0, 0); |
1821 |
else
|
1822 |
val = 0;
|
1823 |
w = s->last_scr_width * ((ds_get_bits_per_pixel(s->ds) + 7) >> 3); |
1824 |
d = ds_get_data(s->ds); |
1825 |
for(i = 0; i < s->last_scr_height; i++) { |
1826 |
memset(d, val, w); |
1827 |
d += ds_get_linesize(s->ds); |
1828 |
} |
1829 |
dpy_update(s->ds, 0, 0, |
1830 |
s->last_scr_width, s->last_scr_height); |
1831 |
} |
1832 |
|
1833 |
#define GMODE_TEXT 0 |
1834 |
#define GMODE_GRAPH 1 |
1835 |
#define GMODE_BLANK 2 |
1836 |
|
1837 |
static void vga_update_display(void *opaque) |
1838 |
{ |
1839 |
VGACommonState *s = opaque; |
1840 |
int full_update, graphic_mode;
|
1841 |
|
1842 |
qemu_flush_coalesced_mmio_buffer(); |
1843 |
|
1844 |
if (ds_get_bits_per_pixel(s->ds) == 0) { |
1845 |
/* nothing to do */
|
1846 |
} else {
|
1847 |
full_update = 0;
|
1848 |
if (!(s->ar_index & 0x20)) { |
1849 |
graphic_mode = GMODE_BLANK; |
1850 |
} else {
|
1851 |
graphic_mode = s->gr[6] & 1; |
1852 |
} |
1853 |
if (graphic_mode != s->graphic_mode) {
|
1854 |
s->graphic_mode = graphic_mode; |
1855 |
full_update = 1;
|
1856 |
} |
1857 |
switch(graphic_mode) {
|
1858 |
case GMODE_TEXT:
|
1859 |
vga_draw_text(s, full_update); |
1860 |
break;
|
1861 |
case GMODE_GRAPH:
|
1862 |
vga_draw_graphic(s, full_update); |
1863 |
break;
|
1864 |
case GMODE_BLANK:
|
1865 |
default:
|
1866 |
vga_draw_blank(s, full_update); |
1867 |
break;
|
1868 |
} |
1869 |
} |
1870 |
} |
1871 |
|
1872 |
/* force a full display refresh */
|
1873 |
static void vga_invalidate_display(void *opaque) |
1874 |
{ |
1875 |
VGACommonState *s = opaque; |
1876 |
|
1877 |
s->last_width = -1;
|
1878 |
s->last_height = -1;
|
1879 |
} |
1880 |
|
1881 |
void vga_common_reset(VGACommonState *s)
|
1882 |
{ |
1883 |
s->sr_index = 0;
|
1884 |
memset(s->sr, '\0', sizeof(s->sr)); |
1885 |
s->gr_index = 0;
|
1886 |
memset(s->gr, '\0', sizeof(s->gr)); |
1887 |
s->ar_index = 0;
|
1888 |
memset(s->ar, '\0', sizeof(s->ar)); |
1889 |
s->ar_flip_flop = 0;
|
1890 |
s->cr_index = 0;
|
1891 |
memset(s->cr, '\0', sizeof(s->cr)); |
1892 |
s->msr = 0;
|
1893 |
s->fcr = 0;
|
1894 |
s->st00 = 0;
|
1895 |
s->st01 = 0;
|
1896 |
s->dac_state = 0;
|
1897 |
s->dac_sub_index = 0;
|
1898 |
s->dac_read_index = 0;
|
1899 |
s->dac_write_index = 0;
|
1900 |
memset(s->dac_cache, '\0', sizeof(s->dac_cache)); |
1901 |
s->dac_8bit = 0;
|
1902 |
memset(s->palette, '\0', sizeof(s->palette)); |
1903 |
s->bank_offset = 0;
|
1904 |
#ifdef CONFIG_BOCHS_VBE
|
1905 |
s->vbe_index = 0;
|
1906 |
memset(s->vbe_regs, '\0', sizeof(s->vbe_regs)); |
1907 |
s->vbe_regs[VBE_DISPI_INDEX_ID] = VBE_DISPI_ID5; |
1908 |
s->vbe_start_addr = 0;
|
1909 |
s->vbe_line_offset = 0;
|
1910 |
s->vbe_bank_mask = (s->vram_size >> 16) - 1; |
1911 |
#endif
|
1912 |
memset(s->font_offsets, '\0', sizeof(s->font_offsets)); |
1913 |
s->graphic_mode = -1; /* force full update */ |
1914 |
s->shift_control = 0;
|
1915 |
s->double_scan = 0;
|
1916 |
s->line_offset = 0;
|
1917 |
s->line_compare = 0;
|
1918 |
s->start_addr = 0;
|
1919 |
s->plane_updated = 0;
|
1920 |
s->last_cw = 0;
|
1921 |
s->last_ch = 0;
|
1922 |
s->last_width = 0;
|
1923 |
s->last_height = 0;
|
1924 |
s->last_scr_width = 0;
|
1925 |
s->last_scr_height = 0;
|
1926 |
s->cursor_start = 0;
|
1927 |
s->cursor_end = 0;
|
1928 |
s->cursor_offset = 0;
|
1929 |
memset(s->invalidated_y_table, '\0', sizeof(s->invalidated_y_table)); |
1930 |
memset(s->last_palette, '\0', sizeof(s->last_palette)); |
1931 |
memset(s->last_ch_attr, '\0', sizeof(s->last_ch_attr)); |
1932 |
switch (vga_retrace_method) {
|
1933 |
case VGA_RETRACE_DUMB:
|
1934 |
break;
|
1935 |
case VGA_RETRACE_PRECISE:
|
1936 |
memset(&s->retrace_info, 0, sizeof (s->retrace_info)); |
1937 |
break;
|
1938 |
} |
1939 |
vga_update_memory_access(s); |
1940 |
} |
1941 |
|
1942 |
static void vga_reset(void *opaque) |
1943 |
{ |
1944 |
VGACommonState *s = opaque; |
1945 |
vga_common_reset(s); |
1946 |
} |
1947 |
|
1948 |
#define TEXTMODE_X(x) ((x) % width)
|
1949 |
#define TEXTMODE_Y(x) ((x) / width)
|
1950 |
#define VMEM2CHTYPE(v) ((v & 0xff0007ff) | \ |
1951 |
((v & 0x00000800) << 10) | ((v & 0x00007000) >> 1)) |
1952 |
/* relay text rendering to the display driver
|
1953 |
* instead of doing a full vga_update_display() */
|
1954 |
static void vga_update_text(void *opaque, console_ch_t *chardata) |
1955 |
{ |
1956 |
VGACommonState *s = opaque; |
1957 |
int graphic_mode, i, cursor_offset, cursor_visible;
|
1958 |
int cw, cheight, width, height, size, c_min, c_max;
|
1959 |
uint32_t *src; |
1960 |
console_ch_t *dst, val; |
1961 |
char msg_buffer[80]; |
1962 |
int full_update = 0; |
1963 |
|
1964 |
qemu_flush_coalesced_mmio_buffer(); |
1965 |
|
1966 |
if (!(s->ar_index & 0x20)) { |
1967 |
graphic_mode = GMODE_BLANK; |
1968 |
} else {
|
1969 |
graphic_mode = s->gr[6] & 1; |
1970 |
} |
1971 |
if (graphic_mode != s->graphic_mode) {
|
1972 |
s->graphic_mode = graphic_mode; |
1973 |
full_update = 1;
|
1974 |
} |
1975 |
if (s->last_width == -1) { |
1976 |
s->last_width = 0;
|
1977 |
full_update = 1;
|
1978 |
} |
1979 |
|
1980 |
switch (graphic_mode) {
|
1981 |
case GMODE_TEXT:
|
1982 |
/* TODO: update palette */
|
1983 |
full_update |= update_basic_params(s); |
1984 |
|
1985 |
/* total width & height */
|
1986 |
cheight = (s->cr[9] & 0x1f) + 1; |
1987 |
cw = 8;
|
1988 |
if (!(s->sr[1] & 0x01)) |
1989 |
cw = 9;
|
1990 |
if (s->sr[1] & 0x08) |
1991 |
cw = 16; /* NOTE: no 18 pixel wide */ |
1992 |
width = (s->cr[0x01] + 1); |
1993 |
if (s->cr[0x06] == 100) { |
1994 |
/* ugly hack for CGA 160x100x16 - explain me the logic */
|
1995 |
height = 100;
|
1996 |
} else {
|
1997 |
height = s->cr[0x12] |
|
1998 |
((s->cr[0x07] & 0x02) << 7) | |
1999 |
((s->cr[0x07] & 0x40) << 3); |
2000 |
height = (height + 1) / cheight;
|
2001 |
} |
2002 |
|
2003 |
size = (height * width); |
2004 |
if (size > CH_ATTR_SIZE) {
|
2005 |
if (!full_update)
|
2006 |
return;
|
2007 |
|
2008 |
snprintf(msg_buffer, sizeof(msg_buffer), "%i x %i Text mode", |
2009 |
width, height); |
2010 |
break;
|
2011 |
} |
2012 |
|
2013 |
if (width != s->last_width || height != s->last_height ||
|
2014 |
cw != s->last_cw || cheight != s->last_ch) { |
2015 |
s->last_scr_width = width * cw; |
2016 |
s->last_scr_height = height * cheight; |
2017 |
s->ds->surface->width = width; |
2018 |
s->ds->surface->height = height; |
2019 |
dpy_resize(s->ds); |
2020 |
s->last_width = width; |
2021 |
s->last_height = height; |
2022 |
s->last_ch = cheight; |
2023 |
s->last_cw = cw; |
2024 |
full_update = 1;
|
2025 |
} |
2026 |
|
2027 |
/* Update "hardware" cursor */
|
2028 |
cursor_offset = ((s->cr[0x0e] << 8) | s->cr[0x0f]) - s->start_addr; |
2029 |
if (cursor_offset != s->cursor_offset ||
|
2030 |
s->cr[0xa] != s->cursor_start ||
|
2031 |
s->cr[0xb] != s->cursor_end || full_update) {
|
2032 |
cursor_visible = !(s->cr[0xa] & 0x20); |
2033 |
if (cursor_visible && cursor_offset < size && cursor_offset >= 0) |
2034 |
dpy_cursor(s->ds, |
2035 |
TEXTMODE_X(cursor_offset), |
2036 |
TEXTMODE_Y(cursor_offset)); |
2037 |
else
|
2038 |
dpy_cursor(s->ds, -1, -1); |
2039 |
s->cursor_offset = cursor_offset; |
2040 |
s->cursor_start = s->cr[0xa];
|
2041 |
s->cursor_end = s->cr[0xb];
|
2042 |
} |
2043 |
|
2044 |
src = (uint32_t *) s->vram_ptr + s->start_addr; |
2045 |
dst = chardata; |
2046 |
|
2047 |
if (full_update) {
|
2048 |
for (i = 0; i < size; src ++, dst ++, i ++) |
2049 |
console_write_ch(dst, VMEM2CHTYPE(le32_to_cpu(*src))); |
2050 |
|
2051 |
dpy_update(s->ds, 0, 0, width, height); |
2052 |
} else {
|
2053 |
c_max = 0;
|
2054 |
|
2055 |
for (i = 0; i < size; src ++, dst ++, i ++) { |
2056 |
console_write_ch(&val, VMEM2CHTYPE(le32_to_cpu(*src))); |
2057 |
if (*dst != val) {
|
2058 |
*dst = val; |
2059 |
c_max = i; |
2060 |
break;
|
2061 |
} |
2062 |
} |
2063 |
c_min = i; |
2064 |
for (; i < size; src ++, dst ++, i ++) {
|
2065 |
console_write_ch(&val, VMEM2CHTYPE(le32_to_cpu(*src))); |
2066 |
if (*dst != val) {
|
2067 |
*dst = val; |
2068 |
c_max = i; |
2069 |
} |
2070 |
} |
2071 |
|
2072 |
if (c_min <= c_max) {
|
2073 |
i = TEXTMODE_Y(c_min); |
2074 |
dpy_update(s->ds, 0, i, width, TEXTMODE_Y(c_max) - i + 1); |
2075 |
} |
2076 |
} |
2077 |
|
2078 |
return;
|
2079 |
case GMODE_GRAPH:
|
2080 |
if (!full_update)
|
2081 |
return;
|
2082 |
|
2083 |
s->get_resolution(s, &width, &height); |
2084 |
snprintf(msg_buffer, sizeof(msg_buffer), "%i x %i Graphic mode", |
2085 |
width, height); |
2086 |
break;
|
2087 |
case GMODE_BLANK:
|
2088 |
default:
|
2089 |
if (!full_update)
|
2090 |
return;
|
2091 |
|
2092 |
snprintf(msg_buffer, sizeof(msg_buffer), "VGA Blank mode"); |
2093 |
break;
|
2094 |
} |
2095 |
|
2096 |
/* Display a message */
|
2097 |
s->last_width = 60;
|
2098 |
s->last_height = height = 3;
|
2099 |
dpy_cursor(s->ds, -1, -1); |
2100 |
s->ds->surface->width = s->last_width; |
2101 |
s->ds->surface->height = height; |
2102 |
dpy_resize(s->ds); |
2103 |
|
2104 |
for (dst = chardata, i = 0; i < s->last_width * height; i ++) |
2105 |
console_write_ch(dst ++, ' ');
|
2106 |
|
2107 |
size = strlen(msg_buffer); |
2108 |
width = (s->last_width - size) / 2;
|
2109 |
dst = chardata + s->last_width + width; |
2110 |
for (i = 0; i < size; i ++) |
2111 |
console_write_ch(dst ++, 0x00200100 | msg_buffer[i]);
|
2112 |
|
2113 |
dpy_update(s->ds, 0, 0, s->last_width, height); |
2114 |
} |
2115 |
|
2116 |
static uint64_t vga_mem_read(void *opaque, target_phys_addr_t addr, |
2117 |
unsigned size)
|
2118 |
{ |
2119 |
VGACommonState *s = opaque; |
2120 |
|
2121 |
return vga_mem_readb(s, addr);
|
2122 |
} |
2123 |
|
2124 |
static void vga_mem_write(void *opaque, target_phys_addr_t addr, |
2125 |
uint64_t data, unsigned size)
|
2126 |
{ |
2127 |
VGACommonState *s = opaque; |
2128 |
|
2129 |
return vga_mem_writeb(s, addr, data);
|
2130 |
} |
2131 |
|
2132 |
const MemoryRegionOps vga_mem_ops = {
|
2133 |
.read = vga_mem_read, |
2134 |
.write = vga_mem_write, |
2135 |
.endianness = DEVICE_LITTLE_ENDIAN, |
2136 |
.impl = { |
2137 |
.min_access_size = 1,
|
2138 |
.max_access_size = 1,
|
2139 |
}, |
2140 |
}; |
2141 |
|
2142 |
static int vga_common_post_load(void *opaque, int version_id) |
2143 |
{ |
2144 |
VGACommonState *s = opaque; |
2145 |
|
2146 |
/* force refresh */
|
2147 |
s->graphic_mode = -1;
|
2148 |
return 0; |
2149 |
} |
2150 |
|
2151 |
const VMStateDescription vmstate_vga_common = {
|
2152 |
.name = "vga",
|
2153 |
.version_id = 2,
|
2154 |
.minimum_version_id = 2,
|
2155 |
.minimum_version_id_old = 2,
|
2156 |
.post_load = vga_common_post_load, |
2157 |
.fields = (VMStateField []) { |
2158 |
VMSTATE_UINT32(latch, VGACommonState), |
2159 |
VMSTATE_UINT8(sr_index, VGACommonState), |
2160 |
VMSTATE_PARTIAL_BUFFER(sr, VGACommonState, 8),
|
2161 |
VMSTATE_UINT8(gr_index, VGACommonState), |
2162 |
VMSTATE_PARTIAL_BUFFER(gr, VGACommonState, 16),
|
2163 |
VMSTATE_UINT8(ar_index, VGACommonState), |
2164 |
VMSTATE_BUFFER(ar, VGACommonState), |
2165 |
VMSTATE_INT32(ar_flip_flop, VGACommonState), |
2166 |
VMSTATE_UINT8(cr_index, VGACommonState), |
2167 |
VMSTATE_BUFFER(cr, VGACommonState), |
2168 |
VMSTATE_UINT8(msr, VGACommonState), |
2169 |
VMSTATE_UINT8(fcr, VGACommonState), |
2170 |
VMSTATE_UINT8(st00, VGACommonState), |
2171 |
VMSTATE_UINT8(st01, VGACommonState), |
2172 |
|
2173 |
VMSTATE_UINT8(dac_state, VGACommonState), |
2174 |
VMSTATE_UINT8(dac_sub_index, VGACommonState), |
2175 |
VMSTATE_UINT8(dac_read_index, VGACommonState), |
2176 |
VMSTATE_UINT8(dac_write_index, VGACommonState), |
2177 |
VMSTATE_BUFFER(dac_cache, VGACommonState), |
2178 |
VMSTATE_BUFFER(palette, VGACommonState), |
2179 |
|
2180 |
VMSTATE_INT32(bank_offset, VGACommonState), |
2181 |
VMSTATE_UINT8_EQUAL(is_vbe_vmstate, VGACommonState), |
2182 |
#ifdef CONFIG_BOCHS_VBE
|
2183 |
VMSTATE_UINT16(vbe_index, VGACommonState), |
2184 |
VMSTATE_UINT16_ARRAY(vbe_regs, VGACommonState, VBE_DISPI_INDEX_NB), |
2185 |
VMSTATE_UINT32(vbe_start_addr, VGACommonState), |
2186 |
VMSTATE_UINT32(vbe_line_offset, VGACommonState), |
2187 |
VMSTATE_UINT32(vbe_bank_mask, VGACommonState), |
2188 |
#endif
|
2189 |
VMSTATE_END_OF_LIST() |
2190 |
} |
2191 |
}; |
2192 |
|
2193 |
void vga_common_init(VGACommonState *s, int vga_ram_size) |
2194 |
{ |
2195 |
int i, j, v, b;
|
2196 |
|
2197 |
for(i = 0;i < 256; i++) { |
2198 |
v = 0;
|
2199 |
for(j = 0; j < 8; j++) { |
2200 |
v |= ((i >> j) & 1) << (j * 4); |
2201 |
} |
2202 |
expand4[i] = v; |
2203 |
|
2204 |
v = 0;
|
2205 |
for(j = 0; j < 4; j++) { |
2206 |
v |= ((i >> (2 * j)) & 3) << (j * 4); |
2207 |
} |
2208 |
expand2[i] = v; |
2209 |
} |
2210 |
for(i = 0; i < 16; i++) { |
2211 |
v = 0;
|
2212 |
for(j = 0; j < 4; j++) { |
2213 |
b = ((i >> j) & 1);
|
2214 |
v |= b << (2 * j);
|
2215 |
v |= b << (2 * j + 1); |
2216 |
} |
2217 |
expand4to8[i] = v; |
2218 |
} |
2219 |
|
2220 |
#ifdef CONFIG_BOCHS_VBE
|
2221 |
s->is_vbe_vmstate = 1;
|
2222 |
#else
|
2223 |
s->is_vbe_vmstate = 0;
|
2224 |
#endif
|
2225 |
memory_region_init_ram(&s->vram, "vga.vram", vga_ram_size);
|
2226 |
vmstate_register_ram_global(&s->vram); |
2227 |
xen_register_framebuffer(&s->vram); |
2228 |
s->vram_ptr = memory_region_get_ram_ptr(&s->vram); |
2229 |
s->vram_size = vga_ram_size; |
2230 |
s->get_bpp = vga_get_bpp; |
2231 |
s->get_offsets = vga_get_offsets; |
2232 |
s->get_resolution = vga_get_resolution; |
2233 |
s->update = vga_update_display; |
2234 |
s->invalidate = vga_invalidate_display; |
2235 |
s->screen_dump = vga_screen_dump; |
2236 |
s->text_update = vga_update_text; |
2237 |
switch (vga_retrace_method) {
|
2238 |
case VGA_RETRACE_DUMB:
|
2239 |
s->retrace = vga_dumb_retrace; |
2240 |
s->update_retrace_info = vga_dumb_update_retrace_info; |
2241 |
break;
|
2242 |
|
2243 |
case VGA_RETRACE_PRECISE:
|
2244 |
s->retrace = vga_precise_retrace; |
2245 |
s->update_retrace_info = vga_precise_update_retrace_info; |
2246 |
break;
|
2247 |
} |
2248 |
vga_dirty_log_start(s); |
2249 |
} |
2250 |
|
2251 |
static const MemoryRegionPortio vga_portio_list[] = { |
2252 |
{ 0x04, 2, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3b4 */ |
2253 |
{ 0x0a, 1, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3ba */ |
2254 |
{ 0x10, 16, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3c0 */ |
2255 |
{ 0x24, 2, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3d4 */ |
2256 |
{ 0x2a, 1, 1, .read = vga_ioport_read, .write = vga_ioport_write }, /* 3da */ |
2257 |
PORTIO_END_OF_LIST(), |
2258 |
}; |
2259 |
|
2260 |
#ifdef CONFIG_BOCHS_VBE
|
2261 |
static const MemoryRegionPortio vbe_portio_list[] = { |
2262 |
{ 0, 1, 2, .read = vbe_ioport_read_index, .write = vbe_ioport_write_index }, |
2263 |
# ifdef TARGET_I386
|
2264 |
{ 1, 1, 2, .read = vbe_ioport_read_data, .write = vbe_ioport_write_data }, |
2265 |
# else
|
2266 |
{ 2, 1, 2, .read = vbe_ioport_read_data, .write = vbe_ioport_write_data }, |
2267 |
# endif
|
2268 |
PORTIO_END_OF_LIST(), |
2269 |
}; |
2270 |
#endif /* CONFIG_BOCHS_VBE */ |
2271 |
|
2272 |
/* Used by both ISA and PCI */
|
2273 |
MemoryRegion *vga_init_io(VGACommonState *s, |
2274 |
const MemoryRegionPortio **vga_ports,
|
2275 |
const MemoryRegionPortio **vbe_ports)
|
2276 |
{ |
2277 |
MemoryRegion *vga_mem; |
2278 |
|
2279 |
*vga_ports = vga_portio_list; |
2280 |
*vbe_ports = NULL;
|
2281 |
#ifdef CONFIG_BOCHS_VBE
|
2282 |
*vbe_ports = vbe_portio_list; |
2283 |
#endif
|
2284 |
|
2285 |
vga_mem = g_malloc(sizeof(*vga_mem));
|
2286 |
memory_region_init_io(vga_mem, &vga_mem_ops, s, |
2287 |
"vga-lowmem", 0x20000); |
2288 |
|
2289 |
return vga_mem;
|
2290 |
} |
2291 |
|
2292 |
void vga_init(VGACommonState *s, MemoryRegion *address_space,
|
2293 |
MemoryRegion *address_space_io, bool init_vga_ports)
|
2294 |
{ |
2295 |
MemoryRegion *vga_io_memory; |
2296 |
const MemoryRegionPortio *vga_ports, *vbe_ports;
|
2297 |
PortioList *vga_port_list = g_new(PortioList, 1);
|
2298 |
PortioList *vbe_port_list = g_new(PortioList, 1);
|
2299 |
|
2300 |
qemu_register_reset(vga_reset, s); |
2301 |
|
2302 |
s->bank_offset = 0;
|
2303 |
|
2304 |
s->legacy_address_space = address_space; |
2305 |
|
2306 |
vga_io_memory = vga_init_io(s, &vga_ports, &vbe_ports); |
2307 |
memory_region_add_subregion_overlap(address_space, |
2308 |
isa_mem_base + 0x000a0000,
|
2309 |
vga_io_memory, |
2310 |
1);
|
2311 |
memory_region_set_coalescing(vga_io_memory); |
2312 |
if (init_vga_ports) {
|
2313 |
portio_list_init(vga_port_list, vga_ports, s, "vga");
|
2314 |
portio_list_add(vga_port_list, address_space_io, 0x3b0);
|
2315 |
} |
2316 |
if (vbe_ports) {
|
2317 |
portio_list_init(vbe_port_list, vbe_ports, s, "vbe");
|
2318 |
portio_list_add(vbe_port_list, address_space_io, 0x1ce);
|
2319 |
} |
2320 |
} |
2321 |
|
2322 |
void vga_init_vbe(VGACommonState *s, MemoryRegion *system_memory)
|
2323 |
{ |
2324 |
#ifdef CONFIG_BOCHS_VBE
|
2325 |
/* XXX: use optimized standard vga accesses */
|
2326 |
memory_region_add_subregion(system_memory, |
2327 |
VBE_DISPI_LFB_PHYSICAL_ADDRESS, |
2328 |
&s->vram); |
2329 |
s->vbe_mapped = 1;
|
2330 |
#endif
|
2331 |
} |
2332 |
/********************************************************/
|
2333 |
/* vga screen dump */
|
2334 |
|
2335 |
static void vga_save_dpy_update(DisplayState *ds, |
2336 |
int x, int y, int w, int h) |
2337 |
{ |
2338 |
if (screen_dump_filename) {
|
2339 |
ppm_save(screen_dump_filename, ds->surface); |
2340 |
} |
2341 |
} |
2342 |
|
2343 |
static void vga_save_dpy_resize(DisplayState *s) |
2344 |
{ |
2345 |
} |
2346 |
|
2347 |
static void vga_save_dpy_refresh(DisplayState *s) |
2348 |
{ |
2349 |
} |
2350 |
|
2351 |
int ppm_save(const char *filename, struct DisplaySurface *ds) |
2352 |
{ |
2353 |
FILE *f; |
2354 |
uint8_t *d, *d1; |
2355 |
uint32_t v; |
2356 |
int y, x;
|
2357 |
uint8_t r, g, b; |
2358 |
int ret;
|
2359 |
char *linebuf, *pbuf;
|
2360 |
|
2361 |
f = fopen(filename, "wb");
|
2362 |
if (!f)
|
2363 |
return -1; |
2364 |
fprintf(f, "P6\n%d %d\n%d\n",
|
2365 |
ds->width, ds->height, 255);
|
2366 |
linebuf = g_malloc(ds->width * 3);
|
2367 |
d1 = ds->data; |
2368 |
for(y = 0; y < ds->height; y++) { |
2369 |
d = d1; |
2370 |
pbuf = linebuf; |
2371 |
for(x = 0; x < ds->width; x++) { |
2372 |
if (ds->pf.bits_per_pixel == 32) |
2373 |
v = *(uint32_t *)d; |
2374 |
else
|
2375 |
v = (uint32_t) (*(uint16_t *)d); |
2376 |
/* Limited to 8 or fewer bits per channel: */
|
2377 |
r = ((v >> ds->pf.rshift) & ds->pf.rmax) << (8 - ds->pf.rbits);
|
2378 |
g = ((v >> ds->pf.gshift) & ds->pf.gmax) << (8 - ds->pf.gbits);
|
2379 |
b = ((v >> ds->pf.bshift) & ds->pf.bmax) << (8 - ds->pf.bbits);
|
2380 |
*pbuf++ = r; |
2381 |
*pbuf++ = g; |
2382 |
*pbuf++ = b; |
2383 |
d += ds->pf.bytes_per_pixel; |
2384 |
} |
2385 |
d1 += ds->linesize; |
2386 |
ret = fwrite(linebuf, 1, pbuf - linebuf, f);
|
2387 |
(void)ret;
|
2388 |
} |
2389 |
g_free(linebuf); |
2390 |
fclose(f); |
2391 |
return 0; |
2392 |
} |
2393 |
|
2394 |
static DisplayChangeListener* vga_screen_dump_init(DisplayState *ds)
|
2395 |
{ |
2396 |
DisplayChangeListener *dcl; |
2397 |
|
2398 |
dcl = g_malloc0(sizeof(DisplayChangeListener));
|
2399 |
dcl->dpy_update = vga_save_dpy_update; |
2400 |
dcl->dpy_resize = vga_save_dpy_resize; |
2401 |
dcl->dpy_refresh = vga_save_dpy_refresh; |
2402 |
register_displaychangelistener(ds, dcl); |
2403 |
return dcl;
|
2404 |
} |
2405 |
|
2406 |
/* save the vga display in a PPM image even if no display is
|
2407 |
available */
|
2408 |
static void vga_screen_dump(void *opaque, const char *filename) |
2409 |
{ |
2410 |
VGACommonState *s = opaque; |
2411 |
|
2412 |
if (!screen_dump_dcl)
|
2413 |
screen_dump_dcl = vga_screen_dump_init(s->ds); |
2414 |
|
2415 |
screen_dump_filename = filename; |
2416 |
vga_invalidate_display(s); |
2417 |
vga_hw_update(); |
2418 |
screen_dump_filename = NULL;
|
2419 |
} |