#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
#include "ureg.h"
#include "../port/error.h"
#include <libg.h>
#include "screen.h"
#define MINX 8
#define DAC ((Dac*)BTDac)
typedef struct Dac Dac;
struct Dac
{
uchar pad0[7];
uchar cr0;
uchar pad1[7];
uchar cr1;
uchar pad2[7];
uchar cr2;
uchar pad3[7];
uchar cr3;
};
char s1[] = { 0x00, 0x00, 0xC0, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
extern Subfont defont0;
static ulong rep(ulong, int);
struct{
Point pos;
int bwid;
}out;
Lock screenlock;
Bitmap gscreen =
{
{ 0, 0, 1600, 1240 },
{ 0, 0, 1600, 1240 },
3,
Screenvirt+0x00017924,
0,
512,
0
};
static Bitmap hwcursor=
{
{0, 0, 64, 64},
{0, 0, 64, 64},
1,
0, /* base filled in by malloc when needed */
0,
4,
0,
};
uchar bdata[] =
{
0xC0,
};
Bitmap bgrnd =
{
{ 0, 0, 1, 1 },
{ 0, 0, 1, 1 },
3,
(ulong*)bdata,
0,
4,
0
};
Cursor fatarrow = {
{ -1, -1 },
{
0xff, 0xff, 0x80, 0x01, 0x80, 0x02, 0x80, 0x0c,
0x80, 0x10, 0x80, 0x10, 0x80, 0x08, 0x80, 0x04,
0x80, 0x02, 0x80, 0x01, 0x80, 0x02, 0x8c, 0x04,
0x92, 0x08, 0x91, 0x10, 0xa0, 0xa0, 0xc0, 0x40,
},
{
0x00, 0x00, 0x7f, 0xfe, 0x7f, 0xfc, 0x7f, 0xf0,
0x7f, 0xe0, 0x7f, 0xe0, 0x7f, 0xf0, 0x7f, 0xf8,
0x7f, 0xfc, 0x7f, 0xfe, 0x7f, 0xfc, 0x73, 0xf8,
0x61, 0xf0, 0x60, 0xe0, 0x40, 0x40, 0x00, 0x00,
},
};
static Rectangle window;
static Point curpos;
static int h, w;
extern Cursor arrow;
void
screenwin(void)
{
Dac *d;
Point p;
int i, y;
ulong zbuf[16];
memset((void*)Screenvirt, 0xff, 3*1024*1024);
texture(&gscreen, gscreen.r, &bgrnd, S);
w = defont0.info[' '].width;
h = defont0.height;
window.min = Pt(100, 100);
window.max = add(window.min, Pt(10+w*120, 10+h*60));
bitblt(&gscreen, add(window.min, Pt(5, 5)), &gscreen, window, F);
bitblt(&gscreen, window.min, &gscreen, window, Zero);
border(&gscreen, window, 4, F);
window = inset(window, 5);
for(i = 0; i < h+6; i += 2) {
y = window.min.y+i;
bitblt(&gscreen, Pt(window.min.x, y),
&gscreen, Rect(window.min.x, y, window.max.x, y+1), F);
}
p = add(window.min, Pt(10, 2));
subfstring(&gscreen, p, &defont0, "Brazil Console ", S);
window.min.y += h+6;
curpos = window.min;
window.max.y = window.min.y+((window.max.y-window.min.y)/h)*h;
d = DAC;
/* cursor color 1: white */
d->cr1 = 0x01;
d->cr0 = 0x81;
d->cr2 = 0xFF;
d->cr2 = 0xFF;
d->cr2 = 0xFF;
/* cursor color 2: noir */
d->cr1 = 0x01;
d->cr0 = 0x82;
d->cr2 = 0;
d->cr2 = 0;
d->cr2 = 0;
/* cursor color 3: schwarz */
d->cr1 = 0x01;
d->cr0 = 0x83;
d->cr2 = 0;
d->cr2 = 0;
d->cr2 = 0;
/* initialize with all-transparent cursor */
memset(zbuf, 0, sizeof zbuf);
setcursor(zbuf, zbuf, 0, 0);
/* enable both planes of cursor */
d->cr1 = 0x03;
d->cr0 = 0x00;
d->cr2 = 0xc0;
}
void
dacinit(void)
{
Dac *d;
int i;
ulong r, g, b;
d = DAC;
/* Control registers */
d->cr0 = 0x01;
d->cr1 = 0x02;
for(i = 0; i < sizeof s1; i++)
d->cr2 = s1[i];
/* Cursor programming */
d->cr0 = 0x00;
d->cr1 = 0x03;
d->cr2 = 0xC0;
for(i = 0; i < 12; i++)
d->cr2 = 0;
/* Load Cursor Ram */
d->cr0 = 0x00;
d->cr1 = 0x04;
for(i = 0; i < 0x400; i++)
d->cr2 = 0xff;
for(i = 0; i<256; i++) {
r = ~rep((i>>5) & 7, 3);
g = ~rep((i>>2) & 7, 3);
b = ~rep(i & 3, 2);
setcolor(i, r, g, b);
}
setcolor(85, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA);
setcolor(170, 0x55555555, 0x55555555, 0x55555555);
/* Overlay Palette Ram */
d->cr0 = 0x00;
d->cr1 = 0x01;
for(i = 0; i < 0x10; i++) {
d->cr2 = 0xff;
d->cr2 = 0xff;
d->cr2 = 0xff;
}
/* Overlay Palette Ram */
d->cr0 = 0x81;
d->cr1 = 0x01;
for(i = 0; i < 3; i++) {
d->cr2 = 0xff;
d->cr2 = 0xff;
d->cr2 = 0xff;
}
}
void
screeninit(void)
{
int i;
ulong r, g, b;
dacinit();
memmove(&arrow, &fatarrow, sizeof(fatarrow));
bitblt(&gscreen, Pt(0, 0), &gscreen, gscreen.r, 0);
out.pos.x = MINX;
out.pos.y = 0;
out.bwid = defont0.info[' '].width;
for(i = 0; i<256; i++) {
r = ~rep((i>>5) & 7, 3);
g = ~rep((i>>2) & 7, 3);
b = ~rep(i & 3, 2);
setcolor(i, r, g, b);
}
setcolor(85, 0xAAAAAAAA, 0xAAAAAAAA, 0xAAAAAAAA);
setcolor(170, 0x55555555, 0x55555555, 0x55555555);
screenwin();
}
static void
scroll(void)
{
int o;
Rectangle r;
o = 5*h;
r = Rpt(Pt(window.min.x, window.min.y+o), window.max);
bitblt(&gscreen, window.min, &gscreen, r, S);
r = Rpt(Pt(window.min.x, window.max.y-o), window.max);
bitblt(&gscreen, r.min, &gscreen, r, Zero);
curpos.y -= o;
}
static void
screenputc(char *buf)
{
int pos;
Rectangle r;
switch(buf[0]) {
case '\n':
if(curpos.y+h >= window.max.y)
scroll();
curpos.y += h;
screenputc("\r");
break;
case '\r':
curpos.x = window.min.x;
break;
case '\t':
pos = (curpos.x-window.min.x)/w;
pos = 8-(pos%8);
curpos.x += pos*w;
break;
case '\b':
if(curpos.x-w >= 0){
r.min.x = curpos.x-w;
r.max.x = curpos.x;
r.min.y = curpos.y;
r.max.y = curpos.y+defont0.height;
bitblt(&gscreen, r.min, &gscreen, r, Zero);
curpos.x -= w;
}
break;
default:
if(curpos.x >= window.max.x-w)
screenputc("\n");
curpos = subfstring(&gscreen, curpos, &defont0, buf, S);
}
}
void
screenputs(char *s, int n)
{
int i;
Rune r;
char buf[4];
if((getstatus() & IE) == 0) {
/* don't deadlock trying to print in interrupt */
if(!canlock(&screenlock))
return;
}
else
lock(&screenlock);
while(n > 0){
i = chartorune(&r, s);
if(i == 0){
s++;
--n;
continue;
}
memmove(buf, s, i);
buf[i] = 0;
n -= i;
s += i;
screenputc(buf);
}
unlock(&screenlock);
}
uchar revtab0[] = {
0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
};
void
getcolor(ulong p, ulong *pr, ulong *pg, ulong *pb)
{
Dac *d;
uchar r, g, b;
extern uchar revtab0[];
d = DAC;
d->cr0 = revtab0[p & 0xFF];
d->cr1 = 0;
r = d->cr3;
g = d->cr3;
b = d->cr3;
*pr = (r<<24) | (r<<16) | (r<<8) | r;
*pg = (g<<24) | (g<<16) | (g<<8) | g;
*pb = (b<<24) | (b<<16) | (b<<8) | b;
}
int
setcolor(ulong p, ulong r, ulong g, ulong b)
{
Dac *d;
extern uchar revtab0[];
d = DAC;
d->cr0 = revtab0[p & 0xFF];
d->cr1 = 0;
d->cr3 = r >> 24;
d->cr3 = g >> 24;
d->cr3 = b >> 24;
return 1;
}
/* replicate (from top) value in v (n bits) until it fills a ulong */
static ulong
rep(ulong v, int n)
{
int o;
ulong rv;
rv = 0;
for(o = 32 - n; o >= 0; o -= n)
rv |= (v << o);
return rv;
}
void
setcursor(ulong *s, ulong *c, int offx, int offy)
{
Dac *d;
int x, y;
Point org;
uchar ylow, yhigh;
ulong spix, cpix, dpix;
hwcursor.base = (ulong *)malloc(1024);
if(hwcursor.base == 0)
error(Enomem);
/* hw cursor is 64x64 with hot point at (32,32) */
org = add(Pt(32,32), Pt(offx,offy));
for(x = 0; x < 16; x++)
for(y = 0; y < 16; y++) {
spix = (s[y]>>(31-(x&0x1F)))&1;
cpix = (c[y]>>(31-(x&0x1F)))&1;
dpix = (spix<<1) | cpix;
point(&hwcursor, add(Pt(x,y), org), dpix, S);
}
d = DAC;
/* have to set y offscreen before writing cursor bits */
d->cr1 = 0x03;
d->cr0 = 0x03;
ylow = d->cr2;
yhigh = d->cr2;
d->cr1 = 0x03;
d->cr0 = 0x03;
d->cr2 = 0xFF;
d->cr2 = 0xFF;
/* now set the bits */
d->cr1 = 0x04;
d->cr0 = 0x00;
for(x = 0; x < 1024; x++)
d->cr2 = ((uchar *)hwcursor.base)[x];
/* set y back */
d->cr1 = 0x03;
d->cr0 = 0x03;
d->cr2 = ylow;
d->cr2 = yhigh;
free(hwcursor.base);
}
void
cursoron(int dolock)
{
Dac *d;
Point p;
p = mousexy();
d = DAC;
if(dolock)
lock(&cursor);
p.x += 380; /* adjusted by experiment */
p.y += 11; /* adjusted by experiment */
d->cr1 = 03;
d->cr0 = 01;
d->cr2 = p.x&0xFF;
d->cr2 = (p.x>>8)&0xF;
d->cr2 = p.y&0xFF;
d->cr2 = (p.y>>8)&0xF;
if(dolock)
unlock(&cursor);
}
int
screenbits(void)
{
return 1<<gscreen.ldepth;
}
extern cursorlock(Rectangle);
extern cursorunlock(void);
/*
* paste tile into screen.
* tile is at location r, first pixel in *data.
* tl is length of scan line to insert,
* l is amount to advance data after each scan line.
* gscreen.ldepth is known to be >= 3
*/
void
screenload(Rectangle r, uchar *data, int tl, int l, int dolock)
{
uchar *q;
int y;
USED(dolock);
if(!rectclip(&r, gscreen.r) || tl<=0)
return;
lock(&screenlock);
q = byteaddr(&gscreen, r.min);
for(y=r.min.y; y<r.max.y; y++){
memmove(q, data, tl);
q += gscreen.width*sizeof(ulong);
data += l;
}
unlock(&screenlock);
}
/*
* get a tile from screen memory.
* tile is at location r, first pixel in *data.
* tl is length of scan line to insert,
* l is amount to advance data after each scan line.
* gscreen.ldepth is known to be >= 3.
* screenunload() doesn't clip, so must be
* called correctly.
*/
void
screenunload(Rectangle r, uchar *data, int tl, int l, int dolock)
{
uchar *q;
int y;
USED(dolock);
lock(&screenlock);
q = byteaddr(&gscreen, r.min);
for(y=r.min.y; y<r.max.y; y++){
memmove(data, q, tl);
q += gscreen.width*sizeof(ulong);
data += l;
}
unlock(&screenlock);
}