1 |
/* |
/* |
2 |
* Copyright (C) 2004-2005 Anders Gavare. All rights reserved. |
* Copyright (C) 2004-2006 Anders Gavare. All rights reserved. |
3 |
* |
* |
4 |
* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
5 |
* modification, are permitted provided that the following conditions are met: |
* modification, are permitted provided that the following conditions are met: |
25 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
28 |
* $Id: dev_vga.c,v 1.90 2005/11/13 00:14:10 debug Exp $ |
* $Id: dev_vga.c,v 1.95 2006/01/01 13:17:18 debug Exp $ |
29 |
* |
* |
30 |
* VGA charcell and graphics device. |
* VGA charcell and graphics device. |
31 |
* |
* |
73 |
uint64_t control_base; |
uint64_t control_base; |
74 |
|
|
75 |
struct vfb_data *fb; |
struct vfb_data *fb; |
76 |
size_t fb_size; |
uint32_t fb_size; |
77 |
|
|
78 |
int fb_max_x; /* pixels */ |
int fb_max_x; /* pixels */ |
79 |
int fb_max_y; /* pixels */ |
int fb_max_y; /* pixels */ |
99 |
int graphics_mode; |
int graphics_mode; |
100 |
int bits_per_pixel; |
int bits_per_pixel; |
101 |
unsigned char *gfx_mem; |
unsigned char *gfx_mem; |
102 |
size_t gfx_mem_size; |
uint32_t gfx_mem_size; |
103 |
|
|
104 |
/* Registers: */ |
/* Registers: */ |
105 |
int attribute_state; /* 0 or 1 */ |
int attribute_state; /* 0 or 1 */ |
137 |
int cursor_y; |
int cursor_y; |
138 |
|
|
139 |
int modified; |
int modified; |
140 |
|
int palette_modified; |
141 |
int update_x1; |
int update_x1; |
142 |
int update_y1; |
int update_y1; |
143 |
int update_x2; |
int update_x2; |
208 |
for (i=16; i<256; i++) |
for (i=16; i<256; i++) |
209 |
d->fb->rgb_palette[i*3 + 0] = d->fb->rgb_palette[i*3 + 1] = |
d->fb->rgb_palette[i*3 + 0] = d->fb->rgb_palette[i*3 + 1] = |
210 |
d->fb->rgb_palette[i*3 + 2] = (i & 15) * 4; |
d->fb->rgb_palette[i*3 + 2] = (i & 15) * 4; |
211 |
|
d->palette_modified = 1; |
212 |
i = 0; |
i = 0; |
213 |
|
|
214 |
if (grayscale) { |
if (grayscale) { |
361 |
} |
} |
362 |
for (iy=y*ry; iy<(y+1)*ry; iy++) |
for (iy=y*ry; iy<(y+1)*ry; iy++) |
363 |
for (ix=x*rx; ix<(x+1)*rx; ix++) { |
for (ix=x*rx; ix<(x+1)*rx; ix++) { |
364 |
int addr2 = (d->fb_max_x * iy + ix) * 3; |
uint32_t addr2 = (d->fb_max_x * iy |
365 |
|
+ ix) * 3; |
366 |
if (addr2 < d->fb_size) |
if (addr2 < d->fb_size) |
367 |
dev_fb_access(machine->cpus[0], |
dev_fb_access(machine->cpus[0], |
368 |
machine->memory, addr2, |
machine->memory, addr2, |
383 |
static void vga_update_text(struct machine *machine, struct vga_data *d, |
static void vga_update_text(struct machine *machine, struct vga_data *d, |
384 |
int x1, int y1, int x2, int y2) |
int x1, int y1, int x2, int y2) |
385 |
{ |
{ |
386 |
int fg, bg, i, x,y, subx, line, start, end, base; |
int fg, bg, x,y, subx, line; |
387 |
|
size_t i, start, end, base; |
388 |
int font_size = d->font_height; |
int font_size = d->font_height; |
389 |
int font_width = d->font_width; |
int font_width = d->font_width; |
390 |
unsigned char *pal = d->fb->rgb_palette; |
unsigned char *pal = d->fb->rgb_palette; |
391 |
|
|
392 |
|
if (d->pixel_repx * font_width > 8*8) { |
393 |
|
fatal("[ too large font ]\n"); |
394 |
|
return; |
395 |
|
} |
396 |
|
|
397 |
/* Hm... I'm still using the old start..end code: */ |
/* Hm... I'm still using the old start..end code: */ |
398 |
start = (d->max_x * y1 + x1) * 2; |
start = (d->max_x * y1 + x1) * 2; |
399 |
end = (d->max_x * y2 + x2) * 2; |
end = (d->max_x * y2 + x2) * 2; |
413 |
for (i=start; i<=end; i+=2) { |
for (i=start; i<=end; i+=2) { |
414 |
unsigned char ch = d->charcells[i + base]; |
unsigned char ch = d->charcells[i + base]; |
415 |
|
|
416 |
if (d->charcells_drawn[i] == ch && |
if (!d->palette_modified && d->charcells_drawn[i] == ch && |
417 |
d->charcells_drawn[i+1] == d->charcells[i+base+1]) |
d->charcells_drawn[i+1] == d->charcells[i+base+1]) |
418 |
continue; |
continue; |
419 |
|
|
433 |
|
|
434 |
/* Draw the character: */ |
/* Draw the character: */ |
435 |
for (line = 0; line < font_size; line++) { |
for (line = 0; line < font_size; line++) { |
436 |
|
/* hardcoded for max 8 scaleup... :-) */ |
437 |
|
unsigned char rgb_line[3 * 8 * 8]; |
438 |
|
int iy; |
439 |
|
|
440 |
for (subx = 0; subx < font_width; subx++) { |
for (subx = 0; subx < font_width; subx++) { |
441 |
int ix, iy, color_index; |
int ix, color_index; |
442 |
|
|
443 |
if (d->use_palette_per_line) { |
if (d->use_palette_per_line) { |
444 |
int sline = d->pixel_repy * (line+y); |
int sline = d->pixel_repy * (line+y); |
455 |
else |
else |
456 |
color_index = bg; |
color_index = bg; |
457 |
|
|
458 |
for (iy=0; iy<d->pixel_repy; iy++) |
for (ix=0; ix<d->pixel_repx; ix++) |
459 |
for (ix=0; ix<d->pixel_repx; ix++) { |
memcpy(rgb_line + (subx*d->pixel_repx + |
460 |
int addr = (d->fb_max_x* (d->pixel_repy |
ix) * 3, &pal[color_index * 3], 3); |
461 |
* (line+y) + iy) + (x+subx) * |
} |
|
d->pixel_repx + ix) * 3; |
|
462 |
|
|
463 |
if (addr >= d->fb_size) |
for (iy=0; iy<d->pixel_repy; iy++) { |
464 |
continue; |
uint32_t addr = (d->fb_max_x * (d->pixel_repy * |
465 |
dev_fb_access(machine->cpus[0], |
(line+y) + iy) + x * d->pixel_repx) * 3; |
466 |
machine->memory, addr, |
if (addr >= d->fb_size) |
467 |
&pal[color_index * 3], 3, |
continue; |
468 |
MEM_WRITE, d->fb); |
dev_fb_access(machine->cpus[0], |
469 |
} |
machine->memory, addr, rgb_line, |
470 |
|
3 * font_width, MEM_WRITE, d->fb); |
471 |
} |
} |
472 |
} |
} |
473 |
} |
} |
572 |
vga_update_graphics(cpu->machine, d, d->update_x1, |
vga_update_graphics(cpu->machine, d, d->update_x1, |
573 |
d->update_y1, d->update_x2, d->update_y2); |
d->update_y1, d->update_x2, d->update_y2); |
574 |
|
|
575 |
|
d->palette_modified = 0; |
576 |
d->modified = 0; |
d->modified = 0; |
577 |
d->update_x1 = 999999; |
d->update_x1 = 999999; |
578 |
d->update_x2 = -1; |
d->update_x2 = -1; |
590 |
* |
* |
591 |
* Reads and writes to the VGA video memory (pixels). |
* Reads and writes to the VGA video memory (pixels). |
592 |
*/ |
*/ |
593 |
int dev_vga_graphics_access(struct cpu *cpu, struct memory *mem, |
DEVICE_ACCESS(vga_graphics) |
|
uint64_t relative_addr, unsigned char *data, size_t len, |
|
|
int writeflag, void *extra) |
|
594 |
{ |
{ |
595 |
struct vga_data *d = extra; |
struct vga_data *d = extra; |
596 |
int i,j, x=0, y=0, x2=0, y2=0, modified = 0; |
int j, x=0, y=0, x2=0, y2=0, modified = 0; |
597 |
|
size_t i; |
598 |
|
|
599 |
if (relative_addr + len >= GFX_ADDR_WINDOW) |
if (relative_addr + len >= GFX_ADDR_WINDOW) |
600 |
return 0; |
return 0; |
631 |
int b = data[i] & pixelmask; |
int b = data[i] & pixelmask; |
632 |
int m = d->sequencer_reg[ |
int m = d->sequencer_reg[ |
633 |
VGA_SEQ_MAP_MASK] & 0x0f; |
VGA_SEQ_MAP_MASK] & 0x0f; |
634 |
int addr = (y * d->max_x + x + i*8 + j) |
uint32_t addr = (y * d->max_x + x + |
635 |
* d->bits_per_pixel / 8; |
i*8 + j) * d->bits_per_pixel / 8; |
636 |
unsigned char byte; |
unsigned char byte; |
637 |
if (!(d->graphcontr_reg[ |
if (!(d->graphcontr_reg[ |
638 |
VGA_GRAPHCONTR_MASK] & pixelmask)) |
VGA_GRAPHCONTR_MASK] & pixelmask)) |
687 |
* |
* |
688 |
* Reads and writes to the VGA video memory (charcells). |
* Reads and writes to the VGA video memory (charcells). |
689 |
*/ |
*/ |
690 |
int dev_vga_access(struct cpu *cpu, struct memory *mem, uint64_t relative_addr, |
DEVICE_ACCESS(vga) |
|
unsigned char *data, size_t len, int writeflag, void *extra) |
|
691 |
{ |
{ |
692 |
struct vga_data *d = extra; |
struct vga_data *d = extra; |
693 |
uint64_t idata = 0, odata = 0; |
uint64_t idata = 0, odata = 0; |
694 |
int i, x, y, x2, y2, r, base; |
int x, y, x2, y2, r, base; |
695 |
|
size_t i; |
696 |
|
|
697 |
if (writeflag == MEM_WRITE) |
if (writeflag == MEM_WRITE) |
698 |
idata = memory_readmax64(cpu, data, len); |
idata = memory_readmax64(cpu, data, len); |
962 |
* |
* |
963 |
* Reads and writes of the VGA control registers. |
* Reads and writes of the VGA control registers. |
964 |
*/ |
*/ |
965 |
int dev_vga_ctrl_access(struct cpu *cpu, struct memory *mem, |
DEVICE_ACCESS(vga_ctrl) |
|
uint64_t relative_addr, unsigned char *data, size_t len, |
|
|
int writeflag, void *extra) |
|
966 |
{ |
{ |
967 |
struct vga_data *d = extra; |
struct vga_data *d = extra; |
968 |
int i; |
size_t i; |
969 |
uint64_t idata = 0, odata = 0; |
uint64_t idata = 0, odata = 0; |
970 |
|
|
971 |
for (i=0; i<len; i++) { |
for (i=0; i<len; i++) { |
1070 |
palette changed: */ |
palette changed: */ |
1071 |
if (new != old) { |
if (new != old) { |
1072 |
d->modified = 1; |
d->modified = 1; |
1073 |
|
d->palette_modified = 1; |
1074 |
d->update_x1 = d->update_y1 = 0; |
d->update_x1 = d->update_y1 = 0; |
1075 |
d->update_x2 = d->max_x - 1; |
d->update_x2 = d->max_x - 1; |
1076 |
d->update_y2 = d->max_y - 1; |
d->update_y2 = d->max_y - 1; |
1194 |
uint64_t videomem_base, uint64_t control_base, char *name) |
uint64_t videomem_base, uint64_t control_base, char *name) |
1195 |
{ |
{ |
1196 |
struct vga_data *d; |
struct vga_data *d; |
1197 |
int i; |
size_t i; |
1198 |
size_t allocsize; |
size_t allocsize; |
1199 |
|
|
1200 |
d = malloc(sizeof(struct vga_data)); |
d = malloc(sizeof(struct vga_data)); |
1204 |
} |
} |
1205 |
memset(d, 0, sizeof(struct vga_data)); |
memset(d, 0, sizeof(struct vga_data)); |
1206 |
|
|
1207 |
d->console_handle = console_start_slave(machine, name); |
d->console_handle = console_start_slave(machine, "vga", |
1208 |
|
CONSOLE_OUTPUT_ONLY); |
1209 |
|
|
1210 |
d->videomem_base = videomem_base; |
d->videomem_base = videomem_base; |
1211 |
d->control_base = control_base; |
d->control_base = control_base; |