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p_setup.c
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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "doomdef.h"
#include "d_think.h"
#include "p_pspr.h"
#include "doomstat.h"
#include "g_game.h"
#include "w_wad.h"
#include "r_main.h"
#include "r_things.h"
#include "p_maputl.h"
#include "p_map.h"
#include "p_setup.h"
#include "p_spec.h"
#include "p_tick.h"
#include "p_enemy.h"
#include "s_sound.h"
#include "i_system.h"
#include "v_video.h"
#include "z_zone.h"
#define gNd2 0x32644E67
#define gNd3 0x33644E67
#define gNd4 0x34644E67
#define gNd5 0x35644E67
#define ZNOD 0x444F4E5A
#define ZGLN 0x4E4C475A
#define GL_VERT_OFFSET 4
#define blkshift 7
#define blkmask ((1 << blkshift) - 1)
#define blkmargin 0
static int numvertexes;
static vertex_t *vertexes;
int numsegs;
seg_t *segs;
int numsectors;
sector_t *sectors;
int numsubsectors;
subsector_t *subsectors;
int numnodes;
node_t *nodes;
int numlines;
line_t *lines;
int numsides;
side_t *sides;
static int firstglvertex = 0;
static int nodesVersion = 0;
typedef struct linelist_t
{
long num;
struct linelist_t *next;
} linelist_t;
typedef struct
{
unsigned short v1;
unsigned short v2;
unsigned short linedef;
short side;
unsigned short partner;
} glseg_t;
typedef struct
{
int x,y;
} mapglvertex_t;
enum
{
ML_GL_LABEL = 0,
ML_GL_VERTS,
ML_GL_SEGS,
ML_GL_SSECT,
ML_GL_NODES
};
int bmapwidth, bmapheight;
long *blockmap;
long *blockmaplump;
int bmaporgx, bmaporgy;
mobj_t **blocklinks;
static int rejectlump = -1;
const byte *rejectmatrix;
mapthing_t playerstarts[MAXPLAYERS];
static void P_AddToBox(int* box, int x, int y)
{
if (x < box[BOXLEFT])
box[BOXLEFT] = x;
else if (x > box[BOXRIGHT])
box[BOXRIGHT] = x;
if (y < box[BOXBOTTOM])
box[BOXBOTTOM] = y;
else if (y > box[BOXTOP])
box[BOXTOP] = y;
}
static boolean P_CheckForZDoomNodes(int lumpnum, int gl_lumpnum)
{
const void *data;
data = W_CacheLumpNum(lumpnum + ML_NODES);
if (*(const int *)data == ZNOD)
I_Error("P_CheckForZDoomNodes: ZDoom nodes not supported yet");
data = W_CacheLumpNum(lumpnum + ML_SSECTORS);
if (*(const int *)data == ZGLN)
I_Error("P_CheckForZDoomNodes: ZDoom GL nodes not supported yet");
return false;
}
static void P_GetNodesVersion(int lumpnum, int gl_lumpnum)
{
const void *data;
data = W_CacheLumpNum(gl_lumpnum + ML_GL_VERTS);
if (gl_lumpnum > lumpnum)
{
if (*(const int *)data == gNd2)
{
data = W_CacheLumpNum(gl_lumpnum + ML_GL_SEGS);
if (*(const int *)data == gNd3)
nodesVersion = gNd3;
else
nodesVersion = gNd2;
}
if (*(const int *)data == gNd4)
nodesVersion = gNd4;
if (*(const int *)data == gNd5)
nodesVersion = gNd5;
}
else
{
nodesVersion = 0;
if (P_CheckForZDoomNodes(lumpnum, gl_lumpnum))
I_Error("P_GetNodesVersion: ZDoom nodes not supported yet");
}
}
static void P_LoadVertexes(int lump)
{
const mapvertex_t *data;
int i;
numvertexes = W_LumpLength(lump) / sizeof (mapvertex_t);
vertexes = Z_Malloc(numvertexes * sizeof (vertex_t), PU_LEVEL, 0);
data = (const mapvertex_t *)W_CacheLumpNum(lump);
for (i = 0; i < numvertexes; i++)
{
vertexes[i].x = data[i].x << FRACBITS;
vertexes[i].y = data[i].y << FRACBITS;
}
W_UnlockLumpNum(lump);
}
static void P_LoadVertexes2(int lump, int gllump)
{
const byte *gldata;
int i;
const mapvertex_t *ml;
firstglvertex = W_LumpLength(lump) / sizeof (mapvertex_t);
numvertexes = W_LumpLength(lump) / sizeof (mapvertex_t);
if (gllump >= 0)
{
gldata = W_CacheLumpNum(gllump);
if (nodesVersion == gNd2)
{
const mapglvertex_t *mgl;
numvertexes += (W_LumpLength(gllump) - GL_VERT_OFFSET) / sizeof (mapglvertex_t);
vertexes = Z_Malloc(numvertexes * sizeof (vertex_t), PU_LEVEL, 0);
mgl = (const mapglvertex_t *)(gldata + GL_VERT_OFFSET);
for (i = firstglvertex; i < numvertexes; i++)
{
vertexes[i].x = mgl->x;
vertexes[i].y = mgl->y;
mgl++;
}
}
else
{
numvertexes += W_LumpLength(gllump) / sizeof (mapvertex_t);
vertexes = Z_Malloc(numvertexes * sizeof (vertex_t), PU_LEVEL, 0);
ml = (const mapvertex_t *)gldata;
for (i = firstglvertex; i < numvertexes; i++)
{
vertexes[i].x = ml->x << FRACBITS;
vertexes[i].y = ml->y << FRACBITS;
ml++;
}
}
W_UnlockLumpNum(gllump);
}
ml = (const mapvertex_t*)W_CacheLumpNum(lump);
for (i = 0; i < firstglvertex; i++)
{
vertexes[i].x = ml->x << FRACBITS;
vertexes[i].y = ml->y << FRACBITS;
ml++;
}
W_UnlockLumpNum(lump);
}
static int checkGLVertex(int num)
{
if (num & 0x8000)
num = (num & 0x7FFF) + firstglvertex;
return num;
}
static float GetDistance(int dx, int dy)
{
float fx = (float)(dx) / FRACUNIT;
float fy = (float)(dy) / FRACUNIT;
return (float)sqrt(fx * fx + fy * fy);
}
static int GetOffset(vertex_t *v1, vertex_t *v2)
{
float a, b;
int r;
a = (float)(v1->x - v2->x) / (float)FRACUNIT;
b = (float)(v1->y - v2->y) / (float)FRACUNIT;
r = (int)(sqrt(a*a+b*b) * (float)FRACUNIT);
return r;
}
static void P_LoadSegs(int lump)
{
int i;
const mapseg_t *data;
numsegs = W_LumpLength(lump) / sizeof (mapseg_t);
segs = Z_Calloc(numsegs, sizeof (seg_t), PU_LEVEL, 0);
data = (const mapseg_t *)W_CacheLumpNum(lump);
if ((!data) || (!numsegs))
I_Error("P_LoadSegs: no segs in level");
for (i = 0; i < numsegs; i++)
{
seg_t *li = segs + i;
const mapseg_t *ml = data + i;
unsigned short v1, v2;
int side, linedef;
line_t *ldef;
li->iSegID = i;
v1 = (unsigned short)ml->v1;
v2 = (unsigned short)ml->v2;
li->v1 = &vertexes[v1];
li->v2 = &vertexes[v2];
li->miniseg = false;
li->length = GetDistance(li->v2->x - li->v1->x, li->v2->y - li->v1->y);
li->angle = (ml->angle)<<16;
li->offset =(ml->offset)<<16;
linedef = (unsigned short)ml->linedef;
ldef = &lines[linedef];
li->linedef = ldef;
side = ml->side;
li->sidedef = &sides[ldef->sidenum[side]];
if (ldef->sidenum[side] != NO_INDEX)
li->frontsector = sides[ldef->sidenum[side]].sector;
else
{
li->frontsector = 0;
I_Error("P_LoadSegs: front of seg %i has no sidedef", i);
}
if (ldef->flags & ML_TWOSIDED && ldef->sidenum[side ^ 1] != NO_INDEX)
li->backsector = sides[ldef->sidenum[side ^ 1]].sector;
else
li->backsector = 0;
}
W_UnlockLumpNum(lump);
}
static void P_LoadGLSegs(int lump)
{
int i;
const glseg_t *ml;
line_t *ldef;
numsegs = W_LumpLength(lump) / sizeof (glseg_t);
segs = Z_Malloc(numsegs * sizeof (seg_t), PU_LEVEL, 0);
memset(segs, 0, numsegs * sizeof (seg_t));
ml = (const glseg_t*)W_CacheLumpNum(lump);
if ((!ml) || (!numsegs))
I_Error("P_LoadGLSegs: no glsegs in level");
for (i = 0; i < numsegs; i++)
{
segs[i].v1 = &vertexes[checkGLVertex(ml->v1)];
segs[i].v2 = &vertexes[checkGLVertex(ml->v2)];
segs[i].iSegID = i;
if (ml->linedef != (unsigned short) - 1)
{
ldef = &lines[ml->linedef];
segs[i].linedef = ldef;
segs[i].miniseg = false;
segs[i].angle = R_PointToAngle2(segs[i].v1->x, segs[i].v1->y, segs[i].v2->x, segs[i].v2->y);
segs[i].sidedef = &sides[ldef->sidenum[ml->side]];
segs[i].length = GetDistance(segs[i].v2->x - segs[i].v1->x, segs[i].v2->y - segs[i].v1->y);
segs[i].frontsector = sides[ldef->sidenum[ml->side]].sector;
if (ldef->flags & ML_TWOSIDED)
segs[i].backsector = sides[ldef->sidenum[ml->side ^ 1]].sector;
else
segs[i].backsector = 0;
if (ml->side)
segs[i].offset = GetOffset(segs[i].v1, ldef->v2);
else
segs[i].offset = GetOffset(segs[i].v1, ldef->v1);
}
else
{
segs[i].miniseg = true;
segs[i].angle = 0;
segs[i].offset = 0;
segs[i].length = 0;
segs[i].linedef = NULL;
segs[i].sidedef = NULL;
segs[i].frontsector = NULL;
segs[i].backsector = NULL;
}
ml++;
}
W_UnlockLumpNum(lump);
}
static void P_LoadSubsectors(int lump)
{
const mapsubsector_t *data;
int i;
numsubsectors = W_LumpLength(lump) / sizeof (mapsubsector_t);
subsectors = Z_Calloc(numsubsectors, sizeof (subsector_t), PU_LEVEL, 0);
data = (const mapsubsector_t *)W_CacheLumpNum(lump);
if ((!data) || (!numsubsectors))
I_Error("P_LoadSubsectors: no subsectors in level");
for (i = 0; i < numsubsectors; i++)
{
subsectors[i].numlines = (unsigned short)data[i].numsegs;
subsectors[i].firstline = (unsigned short)data[i].firstseg;
}
W_UnlockLumpNum(lump);
}
static void P_LoadSectors(int lump)
{
const byte *data;
int i;
numsectors = W_LumpLength(lump) / sizeof (mapsector_t);
sectors = Z_Calloc(numsectors,sizeof (sector_t), PU_LEVEL, 0);
data = W_CacheLumpNum(lump);
for (i = 0; i < numsectors; i++)
{
sector_t *ss = sectors + i;
const mapsector_t *ms = (const mapsector_t *)data + i;
ss->iSectorID = i;
ss->floorheight = ms->floorheight << FRACBITS;
ss->ceilingheight = ms->ceilingheight << FRACBITS;
ss->floorpic = R_FlatNumForName(ms->floorpic);
ss->ceilingpic = R_FlatNumForName(ms->ceilingpic);
ss->lightlevel = ms->lightlevel;
ss->special = ms->special;
ss->oldspecial = ms->special;
ss->tag = ms->tag;
ss->thinglist = NULL;
ss->touching_thinglist = NULL;
ss->nextsec = -1;
ss->prevsec = -1;
ss->floor_xoffs = 0;
ss->floor_yoffs = 0;
ss->ceiling_xoffs = 0;
ss->ceiling_yoffs = 0;
ss->heightsec = -1;
ss->floorlightsec = -1;
ss->ceilinglightsec = -1;
ss->bottommap = ss->midmap = ss->topmap = 0;
ss->sky = 0;
}
W_UnlockLumpNum(lump);
}
static void P_LoadNodes(int lump)
{
const byte *data;
int i;
numnodes = W_LumpLength(lump) / sizeof (mapnode_t);
nodes = Z_Malloc(numnodes * sizeof (node_t), PU_LEVEL, 0);
data = W_CacheLumpNum(lump);
if ((!data) || (!numnodes))
{
if (numsubsectors != 1)
I_Error("P_LoadNodes: no nodes in level");
}
for (i = 0; i < numnodes; i++)
{
node_t *no = nodes + i;
const mapnode_t *mn = (const mapnode_t *)data + i;
int j;
no->x = mn->x << FRACBITS;
no->y = mn->y << FRACBITS;
no->dx = mn->dx << FRACBITS;
no->dy = mn->dy << FRACBITS;
for (j = 0; j < 2; j++)
{
int k;
no->children[j] = mn->children[j];
for (k = 0; k < 4; k++)
no->bbox[j][k] = mn->bbox[j][k] << FRACBITS;
}
}
W_UnlockLumpNum(lump);
}
static void P_LoadThings(int lump)
{
int i, numthings = W_LumpLength (lump) / sizeof (mapthing_t);
const mapthing_t *data = W_CacheLumpNum(lump);
if ((!data) || (!numthings))
I_Error("P_LoadThings: no things in level");
for (i = 0; i < numthings; i++)
{
mapthing_t mt = data[i];
mt.x = mt.x;
mt.y = mt.y;
mt.angle = mt.angle;
mt.type = mt.type;
mt.options = mt.options;
if (!P_IsDoomnumAllowed(mt.type))
continue;
P_SpawnMapThing(&mt);
}
W_UnlockLumpNum(lump);
}
static void P_LoadLineDefs(int lump)
{
const byte *data;
int i;
numlines = W_LumpLength(lump) / sizeof (maplinedef_t);
lines = Z_Calloc(numlines, sizeof (line_t), PU_LEVEL, 0);
data = W_CacheLumpNum(lump);
for (i = 0; i < numlines; i++)
{
const maplinedef_t *mld = (const maplinedef_t *)data + i;
line_t *ld = lines + i;
vertex_t *v1, *v2;
ld->flags = (unsigned short)mld->flags;
ld->special = mld->special;
ld->tag = mld->tag;
v1 = ld->v1 = &vertexes[(unsigned short)mld->v1];
v2 = ld->v2 = &vertexes[(unsigned short)mld->v2];
ld->dx = v2->x - v1->x;
ld->dy = v2->y - v1->y;
ld->tranlump = -1;
ld->slopetype = !ld->dx ? ST_VERTICAL : !ld->dy ? ST_HORIZONTAL : FixedDiv(ld->dy, ld->dx) > 0 ? ST_POSITIVE : ST_NEGATIVE;
if (v1->x < v2->x)
{
ld->bbox[BOXLEFT] = v1->x;
ld->bbox[BOXRIGHT] = v2->x;
}
else
{
ld->bbox[BOXLEFT] = v2->x;
ld->bbox[BOXRIGHT] = v1->x;
}
if (v1->y < v2->y)
{
ld->bbox[BOXBOTTOM] = v1->y;
ld->bbox[BOXTOP] = v2->y;
}
else
{
ld->bbox[BOXBOTTOM] = v2->y;
ld->bbox[BOXTOP] = v1->y;
}
ld->soundorg.x = ld->bbox[BOXLEFT] / 2 + ld->bbox[BOXRIGHT] / 2;
ld->soundorg.y = ld->bbox[BOXTOP] / 2 + ld->bbox[BOXBOTTOM] / 2;
ld->iLineID = i;
ld->sidenum[0] = mld->sidenum[0];
ld->sidenum[1] = mld->sidenum[1];
{
int j;
for (j = 0; j < 2; j++)
{
if (ld->sidenum[j] != NO_INDEX && ld->sidenum[j] >= numsides)
{
ld->sidenum[j] = NO_INDEX;
I_Error("P_LoadLineDefs: linedef %d has out-of-range sidedef number", numlines - i - 1);
}
}
if (ld->sidenum[0] == NO_INDEX)
{
ld->sidenum[0] = 0;
I_Error("P_LoadLineDefs: linedef %d missing first sidedef", numlines - i - 1);
}
if ((ld->sidenum[1] == NO_INDEX) && (ld->flags & ML_TWOSIDED))
{
ld->flags &= ~ML_TWOSIDED;
I_Error("P_LoadLineDefs: linedef %d has two-sided flag set, but no second sidedef", numlines - i - 1);
}
}
if (ld->sidenum[0] != NO_INDEX && ld->special)
sides[*ld->sidenum].special = ld->special;
}
W_UnlockLumpNum(lump);
}
static void P_LoadLineDefs2(int lump)
{
int i = numlines;
register line_t *ld = lines;
for (; i--; ld++)
{
ld->frontsector = sides[ld->sidenum[0]].sector;
ld->backsector = ld->sidenum[1] != NO_INDEX ? sides[ld->sidenum[1]].sector : 0;
switch (ld->special)
{
int lump, j;
case 260:
lump = sides[*ld->sidenum].special;
if (!ld->tag)
ld->tranlump = lump;
else
for (j = 0; j < numlines; j++)
if (lines[j].tag == ld->tag)
lines[j].tranlump = lump;
break;
}
}
}
static void P_LoadSideDefs(int lump)
{
numsides = W_LumpLength(lump) / sizeof (mapsidedef_t);
sides = Z_Calloc(numsides, sizeof (side_t), PU_LEVEL, 0);
}
static void P_LoadSideDefs2(int lump)
{
const byte *data = W_CacheLumpNum(lump);
int i;
for (i = 0; i < numsides; i++)
{
register const mapsidedef_t *msd = (const mapsidedef_t *)data + i;
register side_t *sd = sides + i;
register sector_t *sec;
sd->textureoffset = msd->textureoffset << FRACBITS;
sd->rowoffset = msd->rowoffset << FRACBITS;
{
unsigned short sector_num = msd->sector;
if (sector_num >= numsectors)
{
I_Error("P_LoadSideDefs2: sidedef %i has out-of-range sector num %u", i, sector_num);
sector_num = 0;
}
sd->sector = sec = §ors[sector_num];
}
switch (sd->special)
{
case 242:
sd->bottomtexture = (sec->bottommap = R_ColormapNumForName(msd->bottomtexture)) < 0 ? sec->bottommap = 0, R_TextureNumForName(msd->bottomtexture): 0;
sd->midtexture = (sec->midmap = R_ColormapNumForName(msd->midtexture)) < 0 ? sec->midmap = 0, R_TextureNumForName(msd->midtexture) : 0;
sd->toptexture = (sec->topmap = R_ColormapNumForName(msd->toptexture)) < 0 ? sec->topmap = 0, R_TextureNumForName(msd->toptexture) : 0;
break;
case 260:
sd->midtexture = strncasecmp("TRANMAP", msd->midtexture, 8) ? (sd->special = W_CheckNumForName(msd->midtexture, ns_global)) < 0 || W_LumpLength(sd->special) != 65536 ? sd->special = 0, R_TextureNumForName(msd->midtexture) : (sd->special++, 0) : (sd->special = 0);
sd->toptexture = R_TextureNumForName(msd->toptexture);
sd->bottomtexture = R_TextureNumForName(msd->bottomtexture);
break;
default:
sd->midtexture = R_SafeTextureNumForName(msd->midtexture, i);
sd->toptexture = R_SafeTextureNumForName(msd->toptexture, i);
sd->bottomtexture = R_SafeTextureNumForName(msd->bottomtexture, i);
break;
}
}
W_UnlockLumpNum(lump);
}
static void AddBlockLine(linelist_t **lists, int *count, int *done, int blockno, long lineno)
{
linelist_t *l;
if (done[blockno])
return;
l = malloc(sizeof(linelist_t));
l->num = lineno;
l->next = lists[blockno];
lists[blockno] = l;
count[blockno]++;
done[blockno] = 1;
}
static void P_CreateBlockMap(void)
{
int xorg,yorg;
int nrows,ncols;
linelist_t **blocklists = NULL;
int *blockcount = NULL;
int *blockdone = NULL;
int NBlocks;
long linetotal = 0;
int i, j;
int map_minx = INT_MAX;
int map_miny = INT_MAX;
int map_maxx = INT_MIN;
int map_maxy = INT_MIN;
for (i = 0; i < numvertexes; i++)
{
int t;
if ((t=vertexes[i].x) < map_minx)
map_minx = t;
else if (t > map_maxx)
map_maxx = t;
if ((t=vertexes[i].y) < map_miny)
map_miny = t;
else if (t > map_maxy)
map_maxy = t;
}
map_minx >>= FRACBITS;
map_maxx >>= FRACBITS;
map_miny >>= FRACBITS;
map_maxy >>= FRACBITS;
xorg = map_minx - blkmargin;
yorg = map_miny - blkmargin;
ncols = (map_maxx + blkmargin - xorg + 1 + blkmask) >> blkshift;
nrows = (map_maxy + blkmargin - yorg + 1 + blkmask) >> blkshift;
NBlocks = ncols * nrows;
blocklists = calloc(NBlocks,sizeof (linelist_t *));
blockcount = calloc(NBlocks,sizeof (int));
blockdone = malloc(NBlocks * sizeof (int));
for (i = 0; i < NBlocks; i++)
{
blocklists[i] = malloc(sizeof(linelist_t));
blocklists[i]->num = -1;
blocklists[i]->next = NULL;
blockcount[i]++;
}
for (i = 0; i < numlines; i++)
{
int x1 = lines[i].v1->x >> FRACBITS;
int y1 = lines[i].v1->y >> FRACBITS;
int x2 = lines[i].v2->x >> FRACBITS;
int y2 = lines[i].v2->y >> FRACBITS;
int dx = x2 - x1;
int dy = y2 - y1;
int vert = !dx;
int horiz = !dy;
int spos = (dx^dy) > 0;
int sneg = (dx^dy) < 0;
int bx,by;
int minx = x1 > x2 ? x2 : x1;
int maxx = x1 > x2 ? x1 : x2;
int miny = y1 > y2 ? y2 : y1;
int maxy = y1 > y2 ? y1 : y2;
memset(blockdone, 0, NBlocks * sizeof (int));
bx = (x1 - xorg) >> blkshift;
by = (y1 - yorg) >> blkshift;
AddBlockLine(blocklists, blockcount, blockdone, by * ncols + bx, i);
bx = (x2 - xorg) >> blkshift;
by = (y2 - yorg) >> blkshift;
AddBlockLine(blocklists, blockcount, blockdone, by * ncols + bx, i);
if (!vert)
{
for (j = 0; j < ncols; j++)
{
int x = xorg + (j << blkshift);
int y = (dy * (x - x1)) / dx + y1;
int yb = (y - yorg) >> blkshift;
int yp = (y - yorg) & blkmask;
if (yb < 0 || yb > nrows - 1)
continue;
if (x < minx || x > maxx)
continue;
AddBlockLine(blocklists, blockcount, blockdone, ncols * yb + j, i);
if (yp == 0)
{
if (sneg)
{
if (yb > 0 && miny < y)
AddBlockLine(blocklists, blockcount, blockdone, ncols * (yb - 1) + j, i);
if (j > 0 && minx < x)
AddBlockLine(blocklists, blockcount, blockdone, ncols * yb + j - 1, i);
}
else if (spos)
{
if (yb > 0 && j > 0 && minx < x)
AddBlockLine(blocklists, blockcount, blockdone, ncols * (yb - 1) + j - 1, i);
}
else if (horiz)
{
if (j > 0 && minx < x)
AddBlockLine(blocklists, blockcount, blockdone, ncols * yb + j - 1, i);
}
}
else if (j > 0 && minx < x)
{
AddBlockLine(blocklists, blockcount, blockdone, ncols * yb + j - 1, i);
}
}
}
if (!horiz)
{
for (j = 0; j < nrows; j++)
{
int y = yorg + (j << blkshift);
int x = (dx * (y - y1)) / dy + x1;
int xb = (x - xorg) >> blkshift;
int xp = (x - xorg) & blkmask;
if (xb < 0 || xb > ncols - 1)
continue;
if (y < miny || y > maxy)
continue;
AddBlockLine(blocklists, blockcount, blockdone, ncols * j + xb, i);
if (xp == 0)
{
if (sneg)
{
if (j > 0 && miny < y)
AddBlockLine(blocklists, blockcount, blockdone, ncols * (j - 1) + xb, i);
if (xb > 0 && minx < x)
AddBlockLine(blocklists, blockcount, blockdone, ncols * j + xb - 1, i);
}
else if (vert)
{
if (j > 0 && miny < y)
AddBlockLine(blocklists, blockcount, blockdone, ncols * (j - 1) + xb, i);
}