/*
* see COPYRIGHT
*/
fchkneg(file, line, rc, cmd)
char *file;
int line;
int rc;
char *cmd;
{
if(rc<0) {
fprintf(stderr,"%s: fatal error on line %d of %s: %d\n",
PROGNAME, line, file, rc);
fprintf(stderr,"%s\n", cmd);
exit(1);
}
}
fchknull(file, line, rc, cmd)
char *file;
int line;
void *rc;
char *cmd;
{
if(rc==NULL) {
fprintf(stderr,"%s: fatal error on line %d of %s: NULL\n",
PROGNAME, line, file);
fprintf(stderr,"%s\n", cmd);
exit(1);
}
}
#define chkneg(f) fchkneg(__FILE__,__LINE__,(f),#f)
#define chknull(f) fchknull(__FILE__,__LINE__,(f),#f)
#define MYPAD 8
#define CHRNONE ' '
#define CHRBOTH '.'
#define CHRONE '1'
#define CHRTWO '2'
#define MINSIZE 8
#define MAXSIZE 20
#define LINEWIDTH 80 /* screen line width in chars */
#define MAXLINES (MAXSIZE*(MAXSIZE-MINSIZE+1))
static char map[MAXLINES][LINEWIDTH+1];
static char mbase, mx, mend;
/* returns 0 if the same, -1 if different */
int
cmpglyphs(g1, g2)
GLYPH *g1, *g2;
{
int wd1, wd2;
int ht1, ht2;
int i, j;
char *p1, *p2;
wd1=g1->metrics.rightSideBearing - g1->metrics.leftSideBearing;
ht1=g1->metrics.ascent - g1->metrics.descent;
wd2=g2->metrics.rightSideBearing - g2->metrics.leftSideBearing;
ht2=g2->metrics.ascent - g2->metrics.descent;
if(g1->bits==NULL && g2->bits!=NULL
|| g1->bits!=NULL && g2->bits==NULL)
return -1;
if(g1->metrics.ascent != g2->metrics.ascent)
return -1;
if(g1->metrics.descent != g2->metrics.descent)
return -1;
if( wd1 != wd2 )
return -1;
if( (p1=g1->bits) !=NULL && (p2=g2->bits) !=NULL )
for(i=0; i<ht1; i++) {
for(j=0; j<wd1; j+=8) {
if( *p1++ != *p2++)
return -1;
}
}
return 0;
}
void
resetmap()
{
int i, j;
for(i=0; i<MAXLINES; i++)
for(j=0; j<LINEWIDTH; j++)
map[i][j]=' ';
mbase=mx=mend=0;
}
void
drawdot(row, col, val)
unsigned row, col, val;
{
if(row < MAXLINES && col < LINEWIDTH-1) {
map[row][col]=val;
if(row > mend)
mend=row;
}
}
void
drawdotg1(row, col, val)
unsigned row, col, val;
{
if(row < MAXLINES && col < LINEWIDTH-1) {
if(val)
map[row][col]=CHRONE;
else
map[row][col]=CHRNONE;
if(row > mend)
mend=row;
}
}
void
drawdotg2(row, col, val)
unsigned row, col, val;
{
if(row < MAXLINES && col < LINEWIDTH-1) {
if(val)
if(map[row][col]==CHRONE)
map[row][col]=CHRBOTH;
else
map[row][col]=CHRTWO;
else if(map[row][col]!=CHRONE)
map[row][col]=CHRNONE;
if(row > mend)
mend=row;
}
}
void
drawglyf(size, g1)
int size;
GLYPH *g1;
{
int wd1, wd2, wdm;
int ht1, ht2, ascm, desm;
int i, j, k, val;
char *p;
int off1, off2;
wd1=g1->metrics.rightSideBearing - g1->metrics.leftSideBearing;
ht1=g1->metrics.ascent - g1->metrics.descent;
wdm=wd1;
ascm=g1->metrics.ascent;
desm= -g1->metrics.descent;
if(mbase==0)
mbase=ascm+1;
else if(LINEWIDTH-mx <= wdm+1) {
mx=0; mbase=mend+ascm+2;
}
drawdot(mbase-ascm-1, mx, (size/10)%10+'0');
drawdot(mbase-ascm-1, mx+1, size%10+'0');
if( (p=g1->bits) !=NULL)
for(i=0; i<ht1; i++) {
for(j=0; j<wd1; j+=8) {
val = *p++;
for(k=0; k<8 && j+k<wd1; k++, val>>=1)
drawdot(i+mbase-g1->metrics.ascent, mx+j+k, (val&1)?CHRBOTH:CHRNONE);
}
}
wdm++;
if(wdm<3)
wdm=3;
mx+=wdm;
drawdot(mbase, mx-1, '-');
}
void
drawdiff(size, g1, g2)
int size;
GLYPH *g1, *g2;
{
int wd1, wd2, wdm;
int ht1, ht2, ascm, desm;
int i, j, k, val;
char *p;
int off1, off2;
wd1=g1->metrics.rightSideBearing - g1->metrics.leftSideBearing;
ht1=g1->metrics.ascent - g1->metrics.descent;
wd2=g2->metrics.rightSideBearing - g2->metrics.leftSideBearing;
ht2=g2->metrics.ascent - g2->metrics.descent;
if(wd1>wd2) {
wdm=wd1;
off1=0; off2=wd1-wd2;
} else {
wdm=wd2;
off2=0; off1=wd2-wd1;
}
if(g1->metrics.ascent > g2->metrics.ascent)
ascm=g1->metrics.ascent;
else
ascm=g2->metrics.ascent;
if(g1->metrics.descent < g2->metrics.descent)
desm= -g1->metrics.descent;
else
desm= -g2->metrics.descent;
if(mbase==0)
mbase=ascm+1;
else if(LINEWIDTH-mx <= wdm+1) {
mx=0; mbase=mend+ascm+2;
}
drawdot(mbase-ascm-1, mx, (size/10)%10+'0');
drawdot(mbase-ascm-1, mx+1, size%10+'0');
/* check which alignment is better */
if(off1!=0 || off2!=0) {
int cntl,cntr;
int a1, a2, d1, d2;
int val1, val2;
int rstep1, rstep2;
cntl=cntr=0;
rstep1=(wd1+7)/8;
rstep2=(wd2+7)/8;
a1=g1->metrics.ascent;
d1=g1->metrics.descent;
a2=g2->metrics.ascent;
d2=g2->metrics.descent;
#ifdef dbgoff
printf("size: %d\n", size);
#endif
for(i=ascm; i>= -desm; i--) {
for(j=0; j<wdm; j++) {
/* first the left alignment */
if(i>a1 || i<d1 || j>=wd1)
val1=0;
else
val1=( g1->bits[ (a1-i)*rstep1+j/8 ] >> (j%8) ) & 1;
if(i>a2 || i<d2 || j>=wd2)
val2=0;
else
val2=( g2->bits[ (a2-i)*rstep2+j/8 ] >> (j%8) ) & 1;
cntl += (val1 ^ val2);
#ifdef dbgoff
putchar(val1?'1':' ');
putchar(val2?'2':' ');
putchar('.');
#endif
/* now the right alignment */
if(i>a1 || i<d1 || j-off1>=wd1 || j<off1)
val1=0;
else
val1=( g1->bits[ (a1-i)*rstep1+(j-off1)/8 ] >> ((j-off1)%8) ) & 1;
if(i>a2 || i<d2 || j-off2>=wd2)
val2=0;
else
val2=( g2->bits[ (a2-i)*rstep2+(j-off2)/8 ] >> ((j-off2)%8) ) & 1;
cntr += (val1 ^ val2);
#ifdef dbgoff
putchar(val1?'1':' ');
putchar(val2?'2':' ');
putchar('|');
#endif
}
#ifdef dbgoff
putchar('\n');
#endif
}
#ifdef dbgoff
printf("size %d: left %d right %d\n",size, cntl, cntr);
#endif
if(cntl <= cntr) /* left is better or the same */
off1=off2=0;
}
if( (p=g1->bits) !=NULL)
for(i=0; i<ht1; i++) {
for(j=0; j<wd1; j+=8) {
val = *p++;
for(k=0; k<8 && j+k<wd1; k++, val>>=1)
drawdotg1(i+mbase-g1->metrics.ascent, mx+j+k+off1, val&1);
}
}
if( (p=g2->bits) !=NULL)
for(i=0; i<ht2; i++) {
for(j=0; j<wd2; j+=8) {
val = *p++;
for(k=0; k<8 && j+k<wd2; k++, val>>=1)
drawdotg2(i+mbase-g2->metrics.ascent, mx+j+k+off2, val&1);
}
}
wdm++;
if(wdm<3)
wdm=3;
mx+=wdm;
drawdot(mbase, mx-1, '-');
}
void
printmap(f)
FILE *f;
{
int i, j;
for(i=0; i<=mend; i++) {
for(j=LINEWIDTH-1; j>=0 && map[i][j]==' '; j--)
{}
map[i][j+1]='\n';
map[i][j+2]=0;
fputs(map[i], f);
}
}
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