/
font.c
303 lines (287 loc) · 10.1 KB
/
font.c
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/*
SDL_basic written by David Ashley, released 20080621 under the GPL
http://www.linuxmotors.com/SDL_basic
dashxdr@gmail.com
*/
#include <string.h>
#include "misc.h"
#include <stdarg.h>
unsigned char fontdata[96][13]={
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,0x04,0x00,0x00,0x00},
{0x00,0x0a,0x0a,0x0a,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x0a,0x0a,0x1f,0x0a,0x1f,0x0a,0x0a,0x00,0x00,0x00,0x00},
{0x00,0x04,0x1e,0x05,0x05,0x0e,0x14,0x14,0x0f,0x04,0x00,0x00,0x00},
{0x00,0x12,0x15,0x0a,0x08,0x04,0x02,0x0a,0x15,0x09,0x00,0x00,0x00},
{0x00,0x02,0x05,0x05,0x02,0x05,0x19,0x09,0x16,0x00,0x00,0x00,0x00},
{0x00,0x0c,0x04,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x08,0x04,0x04,0x02,0x02,0x02,0x04,0x04,0x08,0x00,0x00,0x00},
{0x00,0x02,0x04,0x04,0x08,0x08,0x08,0x04,0x04,0x02,0x00,0x00,0x00},
{0x00,0x00,0x04,0x15,0x1f,0x0e,0x1f,0x15,0x04,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x04,0x04,0x1f,0x04,0x04,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0c,0x04,0x02,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x1f,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x0e,0x04,0x00,0x00},
{0x00,0x10,0x10,0x08,0x08,0x04,0x02,0x02,0x01,0x01,0x00,0x00,0x00},
{0x00,0x04,0x0a,0x11,0x11,0x11,0x11,0x11,0x0a,0x04,0x00,0x00,0x00},
{0x00,0x04,0x06,0x05,0x04,0x04,0x04,0x04,0x04,0x1f,0x00,0x00,0x00},
{0x00,0x0e,0x11,0x11,0x10,0x08,0x04,0x02,0x01,0x1f,0x00,0x00,0x00},
{0x00,0x1f,0x10,0x08,0x04,0x0e,0x10,0x10,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x08,0x08,0x0c,0x0a,0x0a,0x09,0x1f,0x08,0x08,0x00,0x00,0x00},
{0x00,0x1f,0x01,0x01,0x0d,0x13,0x10,0x10,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x0e,0x11,0x01,0x01,0x0f,0x11,0x11,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x1f,0x10,0x08,0x08,0x04,0x04,0x02,0x02,0x02,0x00,0x00,0x00},
{0x00,0x0e,0x11,0x11,0x11,0x0e,0x11,0x11,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x0e,0x11,0x11,0x11,0x1e,0x10,0x10,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x00,0x00,0x04,0x0e,0x04,0x00,0x00,0x04,0x0e,0x04,0x00,0x00},
{0x00,0x00,0x00,0x04,0x0e,0x04,0x00,0x00,0x0c,0x04,0x02,0x00,0x00},
{0x00,0x10,0x08,0x04,0x02,0x01,0x02,0x04,0x08,0x10,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x1f,0x00,0x00,0x1f,0x00,0x00,0x00,0x00,0x00},
{0x00,0x01,0x02,0x04,0x08,0x10,0x08,0x04,0x02,0x01,0x00,0x00,0x00},
{0x00,0x0e,0x11,0x11,0x10,0x08,0x04,0x04,0x00,0x04,0x00,0x00,0x00},
{0x00,0x0e,0x11,0x11,0x19,0x15,0x15,0x0d,0x01,0x1e,0x00,0x00,0x00},
{0x00,0x04,0x0a,0x11,0x11,0x11,0x1f,0x11,0x11,0x11,0x00,0x00,0x00},
{0x00,0x0f,0x12,0x12,0x12,0x0e,0x12,0x12,0x12,0x0f,0x00,0x00,0x00},
{0x00,0x0e,0x11,0x01,0x01,0x01,0x01,0x01,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x0f,0x12,0x12,0x12,0x12,0x12,0x12,0x12,0x0f,0x00,0x00,0x00},
{0x00,0x1f,0x01,0x01,0x01,0x0f,0x01,0x01,0x01,0x1f,0x00,0x00,0x00},
{0x00,0x1f,0x01,0x01,0x01,0x0f,0x01,0x01,0x01,0x01,0x00,0x00,0x00},
{0x00,0x0e,0x11,0x01,0x01,0x01,0x19,0x11,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x11,0x11,0x11,0x11,0x1f,0x11,0x11,0x11,0x11,0x00,0x00,0x00},
{0x00,0x0e,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x0e,0x00,0x00,0x00},
{0x00,0x1c,0x08,0x08,0x08,0x08,0x08,0x08,0x09,0x06,0x00,0x00,0x00},
{0x00,0x11,0x11,0x09,0x05,0x03,0x05,0x09,0x11,0x11,0x00,0x00,0x00},
{0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x1f,0x00,0x00,0x00},
{0x00,0x11,0x11,0x1b,0x15,0x15,0x11,0x11,0x11,0x11,0x00,0x00,0x00},
{0x00,0x11,0x13,0x13,0x15,0x15,0x19,0x19,0x11,0x11,0x00,0x00,0x00},
{0x00,0x0e,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x0f,0x11,0x11,0x11,0x0f,0x01,0x01,0x01,0x01,0x00,0x00,0x00},
{0x00,0x0e,0x11,0x11,0x11,0x11,0x11,0x11,0x15,0x0e,0x10,0x00,0x00},
{0x00,0x0f,0x11,0x11,0x11,0x0f,0x05,0x09,0x11,0x11,0x00,0x00,0x00},
{0x00,0x0e,0x11,0x01,0x01,0x0e,0x10,0x10,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x1f,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,0x00,0x00},
{0x00,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x11,0x11,0x11,0x11,0x0a,0x0a,0x0a,0x04,0x04,0x00,0x00,0x00},
{0x00,0x11,0x11,0x11,0x11,0x15,0x15,0x15,0x1b,0x11,0x00,0x00,0x00},
{0x00,0x11,0x11,0x0a,0x0a,0x04,0x0a,0x0a,0x11,0x11,0x00,0x00,0x00},
{0x00,0x11,0x11,0x0a,0x0a,0x04,0x04,0x04,0x04,0x04,0x00,0x00,0x00},
{0x00,0x1f,0x10,0x08,0x08,0x04,0x02,0x02,0x01,0x1f,0x00,0x00,0x00},
{0x00,0x0e,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x0e,0x00,0x00,0x00},
{0x00,0x01,0x01,0x02,0x02,0x04,0x08,0x08,0x10,0x10,0x00,0x00,0x00},
{0x00,0x0e,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x0e,0x00,0x00,0x00},
{0x00,0x04,0x0a,0x11,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1f,0x00,0x00},
{0x00,0x0c,0x08,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x0e,0x10,0x1e,0x11,0x11,0x1e,0x00,0x00,0x00},
{0x00,0x01,0x01,0x01,0x0f,0x11,0x11,0x11,0x11,0x0f,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x0e,0x11,0x01,0x01,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x10,0x10,0x10,0x1e,0x11,0x11,0x11,0x11,0x1e,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x0e,0x11,0x1f,0x01,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x0c,0x12,0x02,0x02,0x0f,0x02,0x02,0x02,0x02,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x0e,0x11,0x11,0x11,0x1e,0x10,0x11,0x0e,0x00},
{0x00,0x01,0x01,0x01,0x0d,0x13,0x11,0x11,0x11,0x11,0x00,0x00,0x00},
{0x00,0x00,0x04,0x00,0x06,0x04,0x04,0x04,0x04,0x0e,0x00,0x00,0x00},
{0x00,0x00,0x08,0x00,0x0c,0x08,0x08,0x08,0x08,0x09,0x09,0x06,0x00},
{0x00,0x01,0x01,0x01,0x09,0x05,0x03,0x05,0x09,0x11,0x00,0x00,0x00},
{0x00,0x06,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x0e,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x0b,0x15,0x15,0x15,0x15,0x11,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x0d,0x13,0x11,0x11,0x11,0x11,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x0e,0x11,0x11,0x11,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x0f,0x11,0x11,0x11,0x0f,0x01,0x01,0x01,0x00},
{0x00,0x00,0x00,0x00,0x1e,0x11,0x11,0x11,0x1e,0x10,0x10,0x10,0x00},
{0x00,0x00,0x00,0x00,0x0d,0x13,0x01,0x01,0x01,0x01,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x0e,0x11,0x06,0x08,0x11,0x0e,0x00,0x00,0x00},
{0x00,0x00,0x02,0x02,0x0f,0x02,0x02,0x02,0x12,0x0c,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x11,0x11,0x11,0x11,0x19,0x16,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x11,0x11,0x11,0x0a,0x0a,0x04,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x11,0x11,0x15,0x15,0x15,0x0a,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x11,0x0a,0x04,0x04,0x0a,0x11,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x11,0x11,0x11,0x19,0x16,0x10,0x11,0x0e,0x00},
{0x00,0x00,0x00,0x00,0x1f,0x08,0x04,0x02,0x01,0x1f,0x00,0x00,0x00},
{0x00,0x18,0x04,0x04,0x04,0x03,0x04,0x04,0x04,0x18,0x00,0x00,0x00},
{0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,0x00,0x00},
{0x00,0x03,0x04,0x04,0x04,0x18,0x04,0x04,0x04,0x03,0x00,0x00,0x00},
{0x00,0x12,0x15,0x09,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x00}};
#define FONTW 6
#define FONTH 13
void cleartext(bc *bc)
{
memset(bc->textstate, ' ', bc->txsize * bc->tysize);
}
void inittext(bc *bc)
{
bc->txsize = bc->xsize/FONTW;
bc->tysize = bc->ysize/FONTH;
bc->fwidth = FONTW;
bc->fheight = FONTH;
bc->textsize = bc->txsize * bc->tysize;
#warning 3 memory checks
bc->textstate = malloc(bc->textsize);
bc->textbak = malloc(bc->textsize);
bc->scrollhistory = malloc(bc->txsize * SCROLLHISTORYSIZE);
cleartext(bc);
bc->debhist=malloc(LINESIZE*HISTSIZE);
}
void drawtext(bc *bc, int x, int y, Uint32 fgcolor, Uint32 bgcolor, char *str)
{
unsigned char c;
taint(bc);
while((c=*str++))
{
c-=' ';
if(c>=96)
c=0;
drawchar(bc, x, y, fontdata[c], fgcolor, bgcolor);
x+=6;
}
}
// 32bpp
void scrollup(bc *bc)
{
int i;
int h,w;
unsigned char *p1, *p2;
int pitch;
taint(bc);
lock(bc);
w=bc->xsize*4;
h=bc->ysize-FONTH;
pitch = bc->thescreen->pitch;
p1 = bc->thescreen->pixels;
p2 = p1 + pitch*FONTH;
for(i=0;i<h;++i)
{
memcpy(p1, p2, w);
p1+=pitch;
p2+=pitch;
}
for(i=0;i<FONTH;++i)
{
memset(p1, 0, w);
p1+=pitch;
}
memcpy(bc->scrollhistory+(bc->scrollhistoryin++ & (SCROLLHISTORYSIZE-1))*
bc->txsize, bc->textstate, bc->txsize);
memmove(bc->textstate, bc->textstate + bc->txsize,
bc->txsize * (bc->tysize-1));
memset(bc->textstate + bc->txsize * (bc->tysize-1), ' ', bc->txsize);
unlock(bc);
}
void cursor(bc *bc, int onoff)
{
char tt[2];
onoff = !!onoff;
taint(bc);
tt[0] = bc->textstate[bc->typos*bc->txsize + bc->txpos];
tt[1] = 0;
drawtext(bc, bc->txpos*FONTW, bc->typos*FONTH,
onoff ? bc->black : bc->white,
onoff ? bc->cursorcolor : bc->black, tt);
bc->cursorstate = onoff;
}
void newline(bc *bc)
{
bc->txpos = 0;
if(bc->typos < bc->tysize-1)
++bc->typos;
else
scrollup(bc);
}
void drawcharxy(bc *bc, unsigned int x, unsigned int y, char c)
{
char tt[2];
tt[0]=c;
tt[1]=0;
drawtext(bc, x*FONTW, y*FONTH, bc->white, bc->black, tt);
if(x<bc->txsize && y<bc->tysize)
bc->textstate[y*bc->txsize + x] = c;
}
void dprints(bc *bc, char *s)
{
char *p,ch;
static char escape=0;
int i;
static int escapedata[20],ecount;
cursor(bc, 0);
p=s;
ecount=escape=0;
while((ch=*p++))
{
if(escape)
{
if(ch>='0' && ch<='9')
{
escapedata[ecount]*=10;
escapedata[ecount]+=ch-'0';
} else if(ch==';')
{
++ecount;
escapedata[ecount]=0;
}
else
{
escape=0;
switch(ch)
{
case 'k':
i=bc->txpos;
while(i<bc->txsize)
drawcharxy(bc, i++, bc->typos,' ');
break;
case 'x':
bc->txpos=escapedata[0];
if(bc->txpos<=0) bc->txpos=0;
if(bc->txpos>=bc->txsize) bc->txpos=bc->txsize-1;
break;
case 'y':
bc->typos = escapedata[0];
if(bc->typos<0) bc->typos=0;
if(bc->typos>=bc->tysize) bc->typos=bc->tysize-1;
break;
}
}
continue;
}
switch(ch)
{
case '\r':
bc->txpos=0;
break;
case '\n':
newline(bc);
break;
case '\t':
while(bc->txpos&7)
drawcharxy(bc, bc->txpos++,bc->typos,' ');
break;
case 8:
if(bc->txpos)
drawcharxy(bc, --bc->txpos,bc->typos,' ');
break;
case 0x1b:
ecount=0;
escapedata[ecount]=0;
escape=1;
break;
default:
drawcharxy(bc, bc->txpos++,bc->typos,ch);
break;
}
if(bc->txpos >= bc->txsize)
newline(bc);
}
cursor(bc, 1);
update(bc);
}
int tprintf(bc *bc, char *s, ...)
{
char tbuff[2048];
va_list ap;
int len;
va_start(ap, s);
len = vsnprintf(tbuff, sizeof(tbuff), s, ap);
va_end(ap);
dprints(bc, tbuff);
return len;
}