Update UDMFvis, now properly groups by sectors and sorts within them, and doesn't redraw already drawn lines. Default colorscheme was also changed for better visibility.

This commit is contained in:
Marisa the Magician 2018-09-04 17:02:51 +02:00
commit 250d73a03d

255
udmfvis.c
View file

@ -16,9 +16,7 @@
Things left to do:
- Figure out why output is bugged.
- Properly sort lines like dmvis.
- Full-sector drawing like dmvis.
- Skipping over already drawn lines like dmvis.
- Full-sector drawing option like dmvis.
- Support doom/hexen map format and reading from wads.
- Rename project to "cdmvis" when the previous point is done.
- Customizable colorschemes.
@ -36,34 +34,67 @@ typedef struct
{
int v1, v2, type;
int fs, bs;
int done;
} line_t;
typedef struct
{
int s;
int s, l;
int v1, v2, type;
} side_t;
typedef struct
{
int *s;
int ns;
} sector_t;
vertex_t *verts = 0;
line_t *lines = 0;
side_t *sides = 0;
int nverts = 0, nlines = 0, nsides = 0;
sector_t *sectors = 0;
int nverts = 0, nlines = 0, nsides = 0, nsectors = 0;
#define LN_ONESIDED 0
#define LN_TWOSIDED 1
#define LN_ASPECIAL 2
int cmp_sides_by_vertex( const void *a, const void *b )
static void sort_sector( sector_t *s )
{
side_t *sa = (side_t*)a;
side_t *sb = (side_t*)b;
return sa->v2 - sb->v1;
}
int cmp_sides_by_sector( const void *a, const void *b )
{
side_t *sa = (side_t*)a;
side_t *sb = (side_t*)b;
return sa->s - sb->s;
// rearrange line indices in sector based on connected vertices
// find initial line (lowest v1)
int lowest = nverts;
int lowests = -1;
for ( int i=0; i<s->ns; i++ )
{
int ss = s->s[i];
if ( sides[ss].v1 < lowest )
{
lowest = sides[ss].v1;
lowests = ss;
}
}
// allocate new sides array
int *news = malloc(sizeof(int)*s->ns);
// place lowest first
news[0] = lowests;
// loop until filling
for ( int i=0; i<(s->ns-1); i++ )
{
// search for next connected line (v2 equal to current v1)
int next = -1;
for ( int j=0; j<s->ns; j++ )
{
if ( s->s[j] == news[i] ) continue; // skip self
if ( sides[s->s[j]].v1 != sides[news[i]].v2 ) continue;
next = s->s[j];
break;
}
news[i+1] = next;
}
// delete old array and replace with this
free(s->s);
s->s = news;
}
#define LAST_NONE 0
@ -113,37 +144,37 @@ static void bresenham( int col, int x0, int y0, int x1, int y1 )
}
}
void getsidebounds( int i, int *x, int *y, int *w, int *h )
void getsidebounds( int i, int prev, int *x, int *y, int *w, int *h )
{
int minx = 0, miny = 0, maxx = 0, maxy = 0;
if ( i < nsides )
if ( i != -1 )
{
if ( i > 0 )
if ( prev != -1 )
{
minx = verts[sides[i-1].v1].x;
if ( verts[sides[i-1].v2].x < minx )
minx = verts[sides[i-1].v2].x;
minx = verts[sides[prev].v1].x;
if ( verts[sides[prev].v2].x < minx )
minx = verts[sides[prev].v2].x;
if ( verts[sides[i].v1].x < minx )
minx = verts[sides[i].v1].x;
if ( verts[sides[i].v2].x < minx )
minx = verts[sides[i].v2].x;
maxx = verts[sides[i-1].v1].x;
if ( verts[sides[i-1].v2].x > maxx )
maxx = verts[sides[i-1].v2].x;
maxx = verts[sides[prev].v1].x;
if ( verts[sides[prev].v2].x > maxx )
maxx = verts[sides[prev].v2].x;
if ( verts[sides[i].v1].x > maxx )
maxx = verts[sides[i].v1].x;
if ( verts[sides[i].v2].x > maxx )
maxx = verts[sides[i].v2].x;
miny = verts[sides[i-1].v1].y;
if ( verts[sides[i-1].v2].y < miny )
miny = verts[sides[i-1].v2].y;
miny = verts[sides[prev].v1].y;
if ( verts[sides[prev].v2].y < miny )
miny = verts[sides[prev].v2].y;
if ( verts[sides[i].v1].y < miny )
miny = verts[sides[i].v1].y;
if ( verts[sides[i].v2].y < miny )
miny = verts[sides[i].v2].y;
maxy = verts[sides[i-1].v1].y;
if ( verts[sides[i-1].v2].y > maxy )
maxy = verts[sides[i-1].v2].y;
maxy = verts[sides[prev].v1].y;
if ( verts[sides[prev].v2].y > maxy )
maxy = verts[sides[prev].v2].y;
if ( verts[sides[i].v1].y > maxy )
maxy = verts[sides[i].v1].y;
if ( verts[sides[i].v2].y > maxy )
@ -165,20 +196,20 @@ void getsidebounds( int i, int *x, int *y, int *w, int *h )
maxy = verts[sides[i].v2].y;
}
}
else if ( i > 0 )
else if ( prev != -1 )
{
minx = verts[sides[i-1].v1].x;
if ( verts[sides[i-1].v2].x < minx )
minx = verts[sides[i-1].v2].x;
maxx = verts[sides[i-1].v1].x;
if ( verts[sides[i-1].v2].x > maxx )
maxx = verts[sides[i-1].v2].x;
miny = verts[sides[i-1].v1].y;
if ( verts[sides[i-1].v2].y < miny )
miny = verts[sides[i-1].v2].y;
maxy = verts[sides[i-1].v1].y;
if ( verts[sides[i-1].v2].y > maxy )
maxy = verts[sides[i-1].v2].y;
minx = verts[sides[prev].v1].x;
if ( verts[sides[prev].v2].x < minx )
minx = verts[sides[prev].v2].x;
maxx = verts[sides[prev].v1].x;
if ( verts[sides[prev].v2].x > maxx )
maxx = verts[sides[prev].v2].x;
miny = verts[sides[prev].v1].y;
if ( verts[sides[prev].v2].y < miny )
miny = verts[sides[prev].v2].y;
maxy = verts[sides[prev].v1].y;
if ( verts[sides[prev].v2].y > maxy )
maxy = verts[sides[prev].v2].y;
}
*x = minx;
*y = miny;
@ -186,32 +217,33 @@ void getsidebounds( int i, int *x, int *y, int *w, int *h )
*h = (maxy-miny) + 1;
}
void drawside( int i )
void drawside( int i, int prev )
{
// draw previous side normally (if any)
if ( i > 0 )
if ( prev >= 0 )
{
int c = 3;
if ( sides[i-1].type&LN_ASPECIAL ) c = 2;
else if ( sides[i-1].type&LN_TWOSIDED ) c = 4;
bresenham(c,verts[sides[i-1].v1].x,verts[sides[i-1].v1].y,
verts[sides[i-1].v2].x,verts[sides[i-1].v2].y);
if ( sides[prev].type&LN_ASPECIAL ) c = 2;
else if ( sides[prev].type&LN_TWOSIDED ) c = 4;
bresenham(c,verts[sides[prev].v1].x,verts[sides[prev].v1].y,
verts[sides[prev].v2].x,verts[sides[prev].v2].y);
}
// draw current line highlighted (if any)
if ( i < nsides )
if ( i >= 0 )
{
bresenham(1,verts[sides[i].v1].x,verts[sides[i].v1].y,
verts[sides[i].v2].x,verts[sides[i].v2].y);
lines[sides[i].l].done = 1;
}
}
uint8_t gifpal[8][3] =
{
{255,255,255}, // background
{220,0,0}, // cursor
{220,130,50}, // special line
{0,0,0}, // one-sided line
{144,144,144}, // two-sided line
{0,0,0}, // background
{0,255,0}, // cursor
{255,255,0}, // special line
{255,0,0}, // one-sided line
{64,64,64}, // two-sided line
{0,0,0},
{0,0,0},
{0,0,0},
@ -354,6 +386,39 @@ void writelzw( uint8_t *data, int siz, int bits, FILE *f )
drainlzw(f,buffer,1);
}
void writeframe( int side, int prev, FILE *gif )
{
int delay = (side!=-1)?2:3000;
uint8_t gce[] =
{
0x21,0xf9,0x04,0x05,
delay&0xff,delay>>8,
0x00,0x00,
};
fwrite(gce,sizeof(gce),1,gif);
/* calculate bounds */
int x, y, w, h;
getsidebounds(side,prev,&x,&y,&w,&h);
bx = x;
by = y;
bpitch = w;
uint8_t ihead[] =
{
0x2c,
x&0xff,x>>8,
y&0xff,y>>8,
w&0xff,w>>8,
h&0xff,h>>8,
0x00,
};
fwrite(ihead,sizeof(ihead),1,gif);
/* render */
memset(b,0,w*h);
drawside(side,prev);
/* write frame */
writelzw(b,w*h,3,gif);
}
void mkanim( int imgw )
{
/* calculate bounds, adjust scaling */
@ -430,39 +495,21 @@ void mkanim( int imgw )
};
fwrite(ihead,sizeof(ihead),1,gif);
writelzw(b,imgw*imgh,3,gif);
for ( int i=0; i<=nsides; i++ )
int k = 0;
int prev = -1;
for ( int i=0; i<nsectors; i++ )
{
printf("\rwriting frame %d of %d",i,nsides);
int delay = (i<nsides)?2:3000;
uint8_t gce[] =
for ( int j=0; j<sectors[i].ns; j++ )
{
0x21,0xf9,0x04,0x05,
delay&0xff,delay>>8,
0x00,0x00,
};
fwrite(gce,sizeof(gce),1,gif);
/* calculate bounds */
int x, y, w, h;
getsidebounds(i,&x,&y,&w,&h);
bx = x;
by = y;
bpitch = w;
uint8_t ihead[] =
{
0x2c,
x&0xff,x>>8,
y&0xff,y>>8,
w&0xff,w>>8,
h&0xff,h>>8,
0x00,
};
fwrite(ihead,sizeof(ihead),1,gif);
/* render */
memset(b,0,w*h);
drawside(i);
/* write frame */
writelzw(b,w*h,3,gif);
printf("\r progress: %d / %d",k,nsides);
k++;
if ( lines[sides[sectors[i].s[j]].l].done ) continue;
writeframe(sectors[i].s[j],prev,gif);
prev = sectors[i].s[j];
}
}
printf("\r progress: %d / %d",k,nsides);
writeframe(-1,prev,gif);
free(b);
putchar('\n');
fputc(0x3b,gif);
@ -490,6 +537,12 @@ void process_startblock( char *blk )
else sides = realloc(sides,sizeof(side_t)*(nsides+1));
memset(sides+nsides,0,sizeof(side_t));
}
else if ( !strcasecmp(blk,"sector") )
{
if ( !sectors ) sectors = malloc(sizeof(sector_t));
else sectors = realloc(sectors,sizeof(sector_t)*(nsectors+1));
memset(sectors+nsectors,0,sizeof(sector_t));
}
}
void process_assignment( char *blk, char *id, char *val )
@ -527,17 +580,13 @@ void process_assignment( char *blk, char *id, char *val )
void process_endblock( char *blk )
{
if ( !strcasecmp(blk,"vertex") )
{
nverts++;
}
else if ( !strcasecmp(blk,"linedef") )
{
nlines++;
}
else if ( !strcasecmp(blk,"sidedef") )
{
nsides++;
}
else if ( !strcasecmp(blk,"sector") )
nsectors++;
}
int main( int argc, char **argv )
@ -629,16 +678,27 @@ int main( int argc, char **argv )
sides[lines[i].fs].v1 = lines[i].v1;
sides[lines[i].fs].v2 = lines[i].v2;
sides[lines[i].fs].type = lines[i].type;
sides[lines[i].fs].l = i;
if ( lines[i].bs != -1 )
{
sides[lines[i].bs].v1 = lines[i].v2;
sides[lines[i].bs].v2 = lines[i].v1;
sides[lines[i].bs].type = lines[i].type;
sides[lines[i].bs].l = i;
}
}
/* sort sides */
qsort(sides,nsides,sizeof(side_t),cmp_sides_by_vertex);
qsort(sides,nsides,sizeof(side_t),cmp_sides_by_sector);
/* populate sectors */
for ( int i=0; i<nsides; i++ )
{
int s = sides[i].s;
if ( !sectors[s].s ) sectors[s].s = malloc(sizeof(int));
else sectors[s].s = realloc(sectors[s].s,sizeof(int)
*(sectors[s].ns+1));
sectors[s].s[sectors[s].ns++] = i;
}
/* sort sides on each sector */
for ( int i=0; i<nsectors; i++ ) sort_sector(sectors+i);
/* TODO sort sectors based on shared vertices */
/* do the animation! */
int iw = 1024;
if ( argc > 2 ) sscanf(argv[2],"%d",&iw);
@ -646,5 +706,12 @@ int main( int argc, char **argv )
if ( verts ) free(verts);
if ( lines ) free(lines);
if ( sides ) free(sides);
if ( sectors )
{
for ( int i=0; i<nsectors; i++ )
if ( sectors[i].s )
free(sectors[i].s);
free(sectors);
}
return 0;
}