623 lines
11 KiB
C
623 lines
11 KiB
C
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <process.h>
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#include <dos.h>
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#include <alloc.h>
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#include "sgrab.h"
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#pragma hdrstop
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typedef struct
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{
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unsigned height; // in blocks*2
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unsigned collumnofs[64];
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} wall_t;
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typedef struct
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{
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unsigned postofs[4096];
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} holo_t;
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// post data: numruns [skipvalue(*2) runlen [data]]
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typedef struct
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{
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unsigned width;
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unsigned top,bottom;
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unsigned postofs[];
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} scaleshape_t;
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/*
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==============
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=
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= GrabWall
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=
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= filename WALL xblock yblock blockheight
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=
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==============
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*/
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void GrabWall (void)
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{
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int x,y,xl,yl,xh,yh,w,h;
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byte far *screen_p;
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int linedelta;
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wall_t far *header;
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GetToken (false);
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xl = atoi (token)*8;
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GetToken (false);
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yl = atoi (token)*8;
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GetToken (false);
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h = atoi (token)*8;
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w = 64;
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xh = xl+w;
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yh = yl+h;
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header = (wall_t far *)lump_p;
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header->height = h/4; // block height*2
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for (x=0;x<64;x++)
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header->collumnofs[x] = 65*2+x*h - (96-h); // adjusted for entry
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lump_p = (byte far *)&header->collumnofs[64];
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screen_p = MK_FP(0xa000,yl*SCREENWIDTH+xl);
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for (x=xl;x<xh;x++)
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{
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for (y=yl;y<yh;y++)
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{
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screen_p = MK_FP(0xa000,y*SCREENWIDTH+x);
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*lump_p++ = *screen_p;
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*screen_p = 0;
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}
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}
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}
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/*
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==============
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=
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= GrabFlat
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=
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= filename FLAT xblock yblock
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=
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==============
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*/
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void GrabFlat (void)
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{
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int x,y,xl,yl,xh,yh,w,h;
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byte far *screen_p;
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int linedelta;
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GetToken (false);
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xl = atoi (token)*8;
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GetToken (false);
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yl = atoi (token)*8;
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w = h =64;
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xh = xl+w;
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yh = yl+h;
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screen_p = MK_FP(0xa000,yl*SCREENWIDTH+xl);
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linedelta = SCREENWIDTH - w;
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for (y=yl ; y<yh ; y++)
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{
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for (x=xl ; x<xh ; x++)
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{
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*lump_p++ = *screen_p;
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*screen_p++ = 0;
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}
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screen_p += linedelta;
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}
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}
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/*
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==============
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=
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= GrabBump
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=
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= filename BUMP xblock yblock
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=
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==============
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*/
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void GrabBump (void)
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{
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int x,y,xl,yl,xh,yh,w,h;
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byte far *screen_p;
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int linedelta;
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GetToken (false);
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xl = atoi (token)*8;
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GetToken (false);
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yl = atoi (token)*8;
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w = 64;
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h = 64;
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xh = xl+w;
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yh = yl+h;
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screen_p = MK_FP(0xa000,yl*SCREENWIDTH+xl);
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linedelta = SCREENWIDTH - w;
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for (y=yl ; y<yh ; y++)
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{
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for (x=xl ; x<xh ; x++)
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{
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*lump_p++ = *screen_p;
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*screen_p++ = 0;
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}
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screen_p += linedelta;
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}
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//
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// grab the bump map multiplied by two
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//
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yh += 64;
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for ( ; y<yh ; y++)
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{
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for (x=xl ; x<xh ; x++)
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{
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*lump_p++ = *screen_p * 2;
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*screen_p++ = 0;
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}
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screen_p += linedelta;
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}
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}
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/*
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=============================================================================
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SCALED SHAPE GRABBING
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=============================================================================
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*/
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#define TRANSCOLOR 0
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#define WORLDHEIGHT 96
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byte post[WORLDHEIGHT];
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/*
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==============
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=
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= SparsePost
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=
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= Writes out
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=
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==============
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*/
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void SparsePost (void)
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{
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int y,count;
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byte far *count_p;
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if (post[0] != TRANSCOLOR)
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MS_Quit ("First byte of post is not transparent");
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y = 0;
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do
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{
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// count transparent
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count = 0;
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while (post[y] == TRANSCOLOR)
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{
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y++;
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count++;
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if (y==WORLDHEIGHT)
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{
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*lump_p++ = 0; // end of post
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return;
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}
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}
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*lump_p++ = count*2; // skip this many pixels (words)
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// count solid
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count_p = lump_p;
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lump_p++;
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count = 0;
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while (post[y] != TRANSCOLOR)
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{
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*lump_p++ = post[y];
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y++;
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count++;
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if (y==WORLDHEIGHT)
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{
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*count_p = count;
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*lump_p++ = 0; // end of post
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return;
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}
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}
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*count_p = count; // write this many pixels
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} while (1);
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}
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/*
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==============
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=
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= GrabScale
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=
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= filename SCALE x y width height
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=
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==============
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*/
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void GrabScale (void)
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{
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int x,y,xl,yl,w,h,start,adj;
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byte far *screen_p,pixel;
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scaleshape_t far *header;
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GetToken (false);
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xl = atoi (token);
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GetToken (false);
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yl = atoi (token);
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GetToken (false);
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w = atoi (token);
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GetToken (false);
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h = atoi (token);
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start = WORLDHEIGHT-h;
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screen_p = MK_FP(0xa000,yl*SCREENWIDTH+xl);
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header = (scaleshape_t far *)lump_p;
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header->width = w;
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lump_p = (byte far *)&header->postofs[w];
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//
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// copy the lines to post[], then let SparsePost () write the data
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//
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header->top = WORLDHEIGHT;
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header->bottom = 0;
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for (x=0 ; x<w ; x++)
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{
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memset (post,0,sizeof(post));
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header->postofs[x] = lump_p - (byte far *)header;
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for (y=0 ; y<h ; y++)
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{
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pixel = *(screen_p+y*SCREENWIDTH);
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post[start+y] = pixel;
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if (pixel != TRANSCOLOR)
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{
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adj = y+start;
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if (adj < header->top)
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header->top = adj;
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if (adj > header->bottom)
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header->bottom = adj;
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}
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*(screen_p+y*SCREENWIDTH) = 0;
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}
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SparsePost ();
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screen_p++;
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}
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}
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/*
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=============================================================================
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HOLOGRAM
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=============================================================================
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*/
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/*
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==============
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=
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= GrabHolo
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=
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= filename HOLO
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=
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==============
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*/
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#define HOLOSIZE 64
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void GrabHolo (void)
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{
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int x,y,z,shift;
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int runcount,runs,count,lastz;
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byte far *screen_p,pixel;
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byte far *runs_p, far *count_p;
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holo_t far *header;
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byte far *plane[HOLOSIZE];
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boolean inrun;
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//
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// initialize a blank hologram
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// A plane is an X/Y horizontal slice through the hologram
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//
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for (z=0;z<HOLOSIZE;z++)
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{
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plane[z] = farmalloc(HOLOSIZE*HOLOSIZE);
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_fmemset (plane[z],255,HOLOSIZE*HOLOSIZE);
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if (!plane[z])
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MS_Quit ("Couln't allocate hologram buffer\n");
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}
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//
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// cut the north plane all the way through
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//
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for (z=0;z<HOLOSIZE;z++)
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for (x=0;x<HOLOSIZE;x++)
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{
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screen_p = MK_FP(0xa000,(2*8+z)*SCREENWIDTH+2*8+x);
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pixel = *screen_p;
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*screen_p = pixel^255;
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if (!pixel)
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for (y=0;y<HOLOSIZE;y++)
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*(plane[z]+y*HOLOSIZE+x) = 0;
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*screen_p = pixel;
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}
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//
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// cut the west plane all the way through
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//
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for (z=0;z<HOLOSIZE;z++)
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for (y=0;y<HOLOSIZE;y++)
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{
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screen_p = MK_FP(0xa000,(2*8+z)*SCREENWIDTH+11*8+y);
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pixel = *screen_p;
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*screen_p = pixel^255;
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if (!pixel)
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for (x=0;x<HOLOSIZE;x++)
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*(plane[z]+y*HOLOSIZE+x) = 0;
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*screen_p = pixel;
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}
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//
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// cut the top plane all the way through
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//
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for (y=0;y<HOLOSIZE;y++)
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for (x=0;x<HOLOSIZE;x++)
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{
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screen_p = MK_FP(0xa000,(2*8+y)*SCREENWIDTH+20*8+x);
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pixel = *screen_p;
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*screen_p = pixel^255;
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if (!pixel)
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for (z=0;z<HOLOSIZE;z++)
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*(plane[z]+y*HOLOSIZE+x) = 0;
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*screen_p = pixel;
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}
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//
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// color the north plane
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//
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for (z=0;z<HOLOSIZE;z++)
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for (x=0;x<HOLOSIZE;x++)
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{
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screen_p = MK_FP(0xa000,(2*8+z)*SCREENWIDTH+2*8+x);
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pixel = *screen_p;
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*screen_p = pixel^255;
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if (pixel)
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for (y=0;y<HOLOSIZE;y++)
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if (*(plane[z]+y*HOLOSIZE+x))
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||
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{
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if (y==0 || !*(plane[z]+(y-1)*HOLOSIZE+x))
|
||
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*(plane[z]+y*HOLOSIZE+x) = pixel;
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||
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}
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*screen_p = pixel;
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}
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//
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||
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// color the south plane
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||
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|
//
|
||
|
|
for (z=0;z<HOLOSIZE;z++)
|
||
|
|
for (x=0;x<HOLOSIZE;x++)
|
||
|
|
{
|
||
|
|
screen_p = MK_FP(0xa000,(11*8+z)*SCREENWIDTH+2*8+x);
|
||
|
|
pixel = *screen_p;
|
||
|
|
*screen_p = pixel^255;
|
||
|
|
if (pixel)
|
||
|
|
for (y=HOLOSIZE-1;y>=0;y--)
|
||
|
|
if (*(plane[z]+y*HOLOSIZE+x))
|
||
|
|
{
|
||
|
|
if (y==HOLOSIZE-1 || !*(plane[z]+(y+1)*HOLOSIZE+x))
|
||
|
|
*(plane[z]+y*HOLOSIZE+x) = pixel;
|
||
|
|
}
|
||
|
|
*screen_p = pixel;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// color the west plane
|
||
|
|
//
|
||
|
|
for (z=0;z<HOLOSIZE;z++)
|
||
|
|
for (y=0;y<HOLOSIZE;y++)
|
||
|
|
{
|
||
|
|
screen_p = MK_FP(0xa000,(11*8+z)*SCREENWIDTH+11*8+y);
|
||
|
|
pixel = *screen_p;
|
||
|
|
*screen_p = pixel^255;
|
||
|
|
if (pixel)
|
||
|
|
for (x=0;x<HOLOSIZE;x++)
|
||
|
|
if (*(plane[z]+y*HOLOSIZE+x))
|
||
|
|
{
|
||
|
|
if (x==0 || !*(plane[z]+y*HOLOSIZE+x-1))
|
||
|
|
*(plane[z]+y*HOLOSIZE+x) = pixel;
|
||
|
|
}
|
||
|
|
*screen_p = pixel;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// color the east plane
|
||
|
|
//
|
||
|
|
for (z=0;z<HOLOSIZE;z++)
|
||
|
|
for (y=0;y<HOLOSIZE;y++)
|
||
|
|
{
|
||
|
|
screen_p = MK_FP(0xa000,(2*8+z)*SCREENWIDTH+11*8+y);
|
||
|
|
pixel = *screen_p;
|
||
|
|
*screen_p = pixel^255;
|
||
|
|
if (pixel)
|
||
|
|
for (x=HOLOSIZE-1;x>=0;x--)
|
||
|
|
if (*(plane[z]+y*HOLOSIZE+x))
|
||
|
|
{
|
||
|
|
if (x==HOLOSIZE-1 || !*(plane[z]+y*HOLOSIZE+x+1))
|
||
|
|
*(plane[z]+y*HOLOSIZE+x) = pixel;
|
||
|
|
}
|
||
|
|
*screen_p = pixel;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// color the top plane
|
||
|
|
//
|
||
|
|
for (y=0;y<HOLOSIZE;y++)
|
||
|
|
for (x=0;x<HOLOSIZE;x++)
|
||
|
|
{
|
||
|
|
screen_p = MK_FP(0xa000,(2*8+y)*SCREENWIDTH+20*8+x);
|
||
|
|
pixel = *screen_p;
|
||
|
|
*screen_p = pixel^255;
|
||
|
|
if (pixel)
|
||
|
|
for (z=0;z<HOLOSIZE;z++)
|
||
|
|
if (*(plane[z]+y*HOLOSIZE+x))
|
||
|
|
{
|
||
|
|
if (z==0 || !*(plane[z-1]+y*HOLOSIZE+x))
|
||
|
|
*(plane[z]+y*HOLOSIZE+x) = pixel;
|
||
|
|
}
|
||
|
|
*screen_p = pixel;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// color the bottom plane
|
||
|
|
//
|
||
|
|
for (y=0;y<HOLOSIZE;y++)
|
||
|
|
for (x=0;x<HOLOSIZE;x++)
|
||
|
|
{
|
||
|
|
screen_p = MK_FP(0xa000,(11*8+y)*SCREENWIDTH+20*8+x);
|
||
|
|
pixel = *screen_p;
|
||
|
|
*screen_p = pixel^255;
|
||
|
|
if (pixel)
|
||
|
|
for (z=HOLOSIZE-1;z>=0;z--)
|
||
|
|
if (*(plane[z]+y*HOLOSIZE+x))
|
||
|
|
{
|
||
|
|
if (z==HOLOSIZE-1 || !*(plane[z+1]+y*HOLOSIZE+x))
|
||
|
|
*(plane[z]+y*HOLOSIZE+x) = pixel;
|
||
|
|
}
|
||
|
|
*screen_p = pixel;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// draw an orthographic representation
|
||
|
|
//
|
||
|
|
screen_p = MK_FP(0xa000,0);
|
||
|
|
for (y=0;y<HOLOSIZE*2;y++,screen_p += SCREENWIDTH)
|
||
|
|
_fmemset ( screen_p,0,HOLOSIZE*2 );
|
||
|
|
|
||
|
|
for (y=0;y<HOLOSIZE;y++)
|
||
|
|
{
|
||
|
|
shift = (HOLOSIZE-y)/2;
|
||
|
|
screen_p = MK_FP(0xa000,y/2*SCREENWIDTH+shift);
|
||
|
|
for (z=0;z<HOLOSIZE;z++)
|
||
|
|
for (x=0;x<HOLOSIZE;x++)
|
||
|
|
{
|
||
|
|
pixel = *(plane[z]+y*HOLOSIZE+x);
|
||
|
|
if (pixel && pixel != 255)
|
||
|
|
*(screen_p+SCREENWIDTH*z+x) = pixel;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// write out post lists (top view shows where posts are)
|
||
|
|
//
|
||
|
|
header = (holo_t far *)lump_p;
|
||
|
|
_fmemset (header,0,sizeof(*header));
|
||
|
|
lump_p = (byte far *)&header->postofs[4096];
|
||
|
|
|
||
|
|
for (y=0;y<HOLOSIZE;y++)
|
||
|
|
for (x=0;x<HOLOSIZE;x++)
|
||
|
|
{
|
||
|
|
screen_p = MK_FP(0xa000,(2*8+y)*SCREENWIDTH+20*8+x);
|
||
|
|
pixel = *screen_p;
|
||
|
|
*screen_p = pixel^255;
|
||
|
|
if (!pixel)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
// it is still possible to have an empt post if the
|
||
|
|
// cut views are not consistant
|
||
|
|
|
||
|
|
header->postofs[y*HOLOSIZE+x] = lump_p - (byte far *)header;
|
||
|
|
runs_p = lump_p++;
|
||
|
|
|
||
|
|
runs = 0;
|
||
|
|
lastz = 0;
|
||
|
|
inrun = false;
|
||
|
|
|
||
|
|
for (z=0;z<HOLOSIZE;z++)
|
||
|
|
{
|
||
|
|
pixel = *(plane[z]+y*HOLOSIZE+x);
|
||
|
|
if (inrun)
|
||
|
|
{
|
||
|
|
if (pixel != 0 && pixel != 255)
|
||
|
|
{
|
||
|
|
*lump_p++ = pixel;
|
||
|
|
count++;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
*count_p = count;
|
||
|
|
lastz = z+1;
|
||
|
|
inrun = false;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (pixel == 0 || pixel == 255)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
*lump_p++ = (z-lastz)*2; // height adjustment
|
||
|
|
count = 1;
|
||
|
|
count_p = lump_p;
|
||
|
|
lump_p++;
|
||
|
|
*lump_p++ = pixel;
|
||
|
|
inrun = true;
|
||
|
|
runs++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (inrun)
|
||
|
|
*count_p = count;
|
||
|
|
|
||
|
|
if (!runs) // inconsistant post
|
||
|
|
{
|
||
|
|
header->postofs[y*HOLOSIZE+x] = 0;
|
||
|
|
*screen_p = 255;
|
||
|
|
lump_p--;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
*runs_p = runs;
|
||
|
|
|
||
|
|
*screen_p = pixel;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
for (z=0;z<HOLOSIZE;z++)
|
||
|
|
farfree (plane[z]);
|
||
|
|
}
|
||
|
|
|
||
|
|
|