Revision a8aa669b hw/vga.c
| b/hw/vga.c | ||
|---|---|---|
| 852 | 852 |
#define DEPTH 32 |
| 853 | 853 |
#include "vga_template.h" |
| 854 | 854 |
|
| 855 |
static inline int c6_to_8(int v) |
|
| 856 |
{
|
|
| 857 |
int b; |
|
| 858 |
v &= 0x3f; |
|
| 859 |
b = v & 1; |
|
| 860 |
return (v << 2) | (b << 1) | b; |
|
| 861 |
} |
|
| 862 |
|
|
| 863 | 855 |
static unsigned int rgb_to_pixel8_dup(unsigned int r, unsigned int g, unsigned b) |
| 864 | 856 |
{
|
| 865 | 857 |
unsigned int col; |
| ... | ... | |
| 1309 | 1301 |
return ret; |
| 1310 | 1302 |
} |
| 1311 | 1303 |
|
| 1304 |
void vga_invalidate_scanlines(VGAState *s, int y1, int y2) |
|
| 1305 |
{
|
|
| 1306 |
int y; |
|
| 1307 |
if (y1 >= VGA_MAX_HEIGHT) |
|
| 1308 |
return; |
|
| 1309 |
if (y2 >= VGA_MAX_HEIGHT) |
|
| 1310 |
y2 = VGA_MAX_HEIGHT; |
|
| 1311 |
for(y = y1; y < y2; y++) {
|
|
| 1312 |
s->invalidated_y_table[y >> 5] |= 1 << (y & 0x1f); |
|
| 1313 |
} |
|
| 1314 |
} |
|
| 1315 |
|
|
| 1312 | 1316 |
/* |
| 1313 | 1317 |
* graphic modes |
| 1314 |
* Missing: |
|
| 1315 |
* - double scan |
|
| 1316 |
* - double width |
|
| 1317 | 1318 |
*/ |
| 1318 | 1319 |
static void vga_draw_graphic(VGAState *s, int full_update) |
| 1319 | 1320 |
{
|
| ... | ... | |
| 1400 | 1401 |
s->last_height = height; |
| 1401 | 1402 |
full_update = 1; |
| 1402 | 1403 |
} |
| 1403 |
|
|
| 1404 |
if (s->cursor_invalidate) |
|
| 1405 |
s->cursor_invalidate(s); |
|
| 1406 |
|
|
| 1404 | 1407 |
line_offset = s->line_offset; |
| 1405 | 1408 |
#if 0 |
| 1406 | 1409 |
printf("w=%d h=%d v=%d line_offset=%d double_scan=0x%02x cr[0x17]=0x%02x linecmp=%d sr[0x01]=%02x\n",
|
| ... | ... | |
| 1433 | 1436 |
/* if wide line, can use another page */ |
| 1434 | 1437 |
update |= cpu_physical_memory_is_dirty(page0 + TARGET_PAGE_SIZE); |
| 1435 | 1438 |
} |
| 1439 |
/* explicit invalidation for the hardware cursor */ |
|
| 1440 |
update |= (s->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1; |
|
| 1436 | 1441 |
if (update) {
|
| 1437 | 1442 |
if (y_start < 0) |
| 1438 | 1443 |
y_start = y; |
| ... | ... | |
| 1441 | 1446 |
if (page1 > page_max) |
| 1442 | 1447 |
page_max = page1; |
| 1443 | 1448 |
vga_draw_line(s, d, s->vram_ptr + addr, width); |
| 1449 |
if (s->cursor_draw_line) |
|
| 1450 |
s->cursor_draw_line(s, d, y); |
|
| 1444 | 1451 |
} else {
|
| 1445 | 1452 |
if (y_start >= 0) {
|
| 1446 | 1453 |
/* flush to display */ |
| ... | ... | |
| 1476 | 1483 |
if (page_max != -1) {
|
| 1477 | 1484 |
cpu_physical_memory_reset_dirty(page_min, page_max + TARGET_PAGE_SIZE); |
| 1478 | 1485 |
} |
| 1486 |
memset(s->invalidated_y_table, 0, ((height + 31) >> 5) * 4); |
|
| 1479 | 1487 |
} |
| 1480 | 1488 |
|
| 1481 | 1489 |
static void vga_draw_blank(VGAState *s, int full_update) |
Also available in: Unified diff