src/a8.c

   1 /*
   2    Copyright (C) Prikol Software 1996-1997
   3    Copyright (C) Aleksey Volynskov 1996-1997
   4
   5    This file is part of the Doom2D:Rembo project.
   6
   7    Doom2D:Rembo is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License version 2 as
   9    published by the Free Software Foundation.
  10
  11    Doom2D:Rembo is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, see <http://www.gnu.org/licenses/> or
  18    write to the Free Software Foundation, Inc.,
  19    51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  20 */
  21
  22 #include "glob.h"
  23 #include <stdio.h>
  24 //#include <io.h>
  25 #include <fcntl.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include "vga.h"
  29 #include "keyb.h"
  30 #include "error.h"
  31 #include "files.h"
  32 #include "sound.h"
  33
  34
  35 /*
  36 #define WAIT_SZ 400000
  37
  38 extern byte gamcor[5][64];
  39
  40 extern char cd_path[];
  41
  42 extern int gammaa;
  43 void setgamma(int);
  44
  45 extern void *cd_scr;
  46
  47 static byte skipping=0,credits=0;
  48
  49 #define A8_ID 0xA8
  50
  51 enum{
  52   A8C_ENDFR,A8C_PAL,A8C_CLRSCR,A8C_DRAW,
  53   A8C_FILL,A8C_DRAW2C,A8C_DRAW2
  54 };
  55
  56 typedef struct{
  57   unsigned char id,ver;
  58   short width,height,frames;
  59   long maxfsize;
  60   long f1size;
  61 }a8_hdr_t;
  62
  63 typedef unsigned char uchar;
  64
  65 #define SQ 4
  66
  67 static int sqw,sqh;
  68
  69 static int norm_gamma;
  70
  71 static unsigned char *frp,sqc[2][50][80];
  72 static int frame;
  73 static a8_hdr_t ah;
  74 static snd_t *strk;
  75 static int strk_ch;
  76
  77 static signed char *unpack(char *d,signed char *p,int l) {
  78   for(;l>0;) if(*p>0) {
  79     memcpy(d,p+1,*p);d+=*p;l-=*p;p+=*p+1;
  80   }else if(*p<0) {
  81     memset(d,p[1],-*p);d+=-*p;l-=-*p;p+=2;
  82   }else return p+1;
  83   return p;
  84 }
  85
  86 static unsigned char *draw(signed char *p) {
  87   int x,y,sy,yc,n;
  88
  89   for(y=0;y<sqh;) if(*p>0) {
  90     for(yc=*p++;yc;--yc,++y) for(x=0;x<sqw;) if(*p>0) {
  91       n=(*p++)*SQ;
  92       for(sy=0;sy<SQ;++sy) {
  93         p=unpack(scra+(y*SQ+sy)*320+x*SQ,p,n);
  94       }
  95       x+=n/SQ;
  96     }else x+=-*p++;
  97   }else y+=-*p++;
  98   return p;
  99 }
 100
 101 static unsigned char *fill(signed char *p) {
 102   int x,y,yc,n;
 103
 104   for(y=0;y<sqh;) if(*p>0) {
 105     for(yc=*p++;yc;--yc,++y) for(x=0;x<sqw;) if(*p>0) {
 106       for(n=*p++;n;--n,++p,++x)
 107         V_clr(x*SQ,SQ,y*SQ,SQ,*p);
 108     }else x+=-*p++;
 109   }else y+=-*p++;
 110   return p;
 111 }
 112
 113 static unsigned char *draw2c(signed char *p) {
 114   int x,y,sx,sy,yc,n;
 115   unsigned short w;
 116
 117   for(y=0;y<sqh;) if(*p>0) {
 118     for(yc=*p++;yc;--yc,++y) for(x=0;x<sqw;) if(*p>0) {
 119       for(n=*p++;n;--n,++x) {
 120         sqc[0][y][x]=*p++;
 121         sqc[1][y][x]=*p++;
 122         w=*(unsigned short*)p;p+=2;
 123         for(sy=0;sy<SQ;++sy)
 124           for(sx=0;sx<SQ;++sx,w>>=1)
 125             scra[(y*SQ+sy)*320+x*SQ+sx]=sqc[w&1][y][x];
 126       }
 127     }else x+=-*p++;
 128   }else y+=-*p++;
 129   return p;
 130 }
 131
 132 static unsigned char *draw2(signed char *p) {
 133   int x,y,sx,sy,yc,n;
 134   unsigned short w;
 135
 136   for(y=0;y<sqh;) if(*p>0) {
 137     for(yc=*p++;yc;--yc,++y) for(x=0;x<sqw;) if(*p>0) {
 138       for(n=*p++;n;--n,++x) {
 139         w=*(unsigned short*)p;p+=2;
 140         for(sy=0;sy<SQ;++sy)
 141           for(sx=0;sx<SQ;++sx,w>>=1)
 142             scra[(y*SQ+sy)*320+x*SQ+sx]=sqc[w&1][y][x];
 143       }
 144     }else x+=-*p++;
 145   }else y+=-*p++;
 146   return p;
 147 }
 148
 149 //---------------------------------------------------------------//
 150
 151 static int fsz,fdptr;
 152 static FILE *fh;
 153 static char *fdata;
 154
 155
 156 static void f_close(void) {
 157   if(fdata) {
 158     free(fdata);fdata=NULL;
 159   }else if(fh!=NULL) {fclose(fh);fh=NULL;}
 160 }
 161
 162 static char end_clr=1;
 163 */
 164
 165 void A8_close(void) {
 166 /*
 167   if(strk) if(strk_ch) S_stop(strk_ch);
 168   f_close();
 169   if(frp) {free(frp);frp=NULL;}
 170   if(strk) {free(strk);strk=NULL;}
 171   if(end_clr) {
 172     VP_fill(0,0,0);
 173     V_clr(0,320,0,200,0);V_copytoscr(0,320,0,200);
 174     setgamma(norm_gamma);
 175   }
 176 */
 177 }
 178
 179 int A8_nextframe(void) {
 180 /*
 181   unsigned char *p;
 182   int i,j,k;
 183   static int len;
 184
 185   if(credits) if(keys[0x33] && keys[0x34]) skipping=1;
 186   if(frame==-1) if(strk) strk_ch=S_play(strk,-1,1024,255);
 187     if(fdata) {
 188       len=*(int*)(fdata+fdptr);fdptr+=4;
 189     }else {len=0;myfread(&len,1,4,fh);}
 190     len-=4;
 191     if(len<=0) {
 192       A8_close();
 193       return 0;
 194     }
 195     if(fdata) {
 196       p=fdata+fdptr;fdptr+=len;
 197     }else {myfread(frp,1,len,fh);p=frp;}
 198     for(;*p;) switch(*p++) {
 199       case A8C_PAL:
 200         i=*p++;j=*p++;if(!j) j=256;
 201         for(k=0;k<j*3;++k) p[k]=gamcor[3][p[k]];
 202         VP_set(p,i,j);
 203         p+=j*3;
 204         break;
 205       case A8C_CLRSCR:
 206         V_clr(0,ah.width,0,ah.height,*p++);
 207         break;
 208       case A8C_DRAW:
 209         p=draw(p);
 210         break;
 211       case A8C_FILL:
 212         p=fill(p);
 213         break;
 214       case A8C_DRAW2C:
 215         p=draw2c(p);
 216         break;
 217       case A8C_DRAW2:
 218         p=draw2(p);
 219         break;
 220       default:
 221         ERR_fatal("Плохой блок в файле A8");
 222     }
 223     ++frame;
 224   return 1;
 225  */
 226     return 0;
 227 }
 228
 229 /*
 230 static char wscr;
 231
 232 static void wait_scr(int s) {
 233   if(!end_clr) return;
 234   if(s<WAIT_SZ) return;
 235   F_freemus();
 236   V_setrect(0,320,0,200);
 237   V_clr(0,320,0,200,0);
 238   V_copytoscr(0,320,0,200);
 239   V_pic(0,0,(void*)((char*)cd_scr+768));
 240   VP_setall(cd_scr);
 241   V_copytoscr(0,320,0,200);
 242   wscr=1;
 243 }
 244
 245 static void blank_scr(void) {
 246   VP_fill(0,0,0);
 247   V_setrect(0,320,0,200);
 248   V_clr(0,320,0,200,0);
 249   V_copytoscr(0,320,0,200);
 250 }
 251 */
 252
 253 int A8_start(char *nm) {
 254
 255 /*
 256   static char s[40];
 257   int sz;
 258   FILE* h;
 259   unsigned char *p;
 260
 261   end_clr=1;
 262   if(strcasecmp(nm,"FINAL")==0 || strcasecmp(nm,"CREDITS")==0) end_clr=0;
 263   else if(strcasecmp(nm,"KONEC")==0) end_clr=0;
 264   credits=(strcasecmp(nm,"FINAL")==0)?1:0;
 265   if(strcasecmp(nm,"CREDITS")==0) if(skipping) return 0;
 266   wscr=0;
 267   strk=NULL;strk_ch=0;
 268   fdata=NULL;frp=NULL;
 269   if(snd_type!=ST_NONE) {
 270     sprintf(s,"%sA8\\%s.SND",cd_path,nm);
 271     if((h=fopen(s,"rb"))!=NULL) {
 272       fseek(h,0,SEEK_END);sz=ftell(h);fseek(h,0,SEEK_SET);
 273       if((strk=malloc(sz+sizeof(snd_t)))!=NULL) {
 274         wait_scr(sz);
 275         myfread(strk+1,1,sz,h);
 276         strk->rate=11000;
 277         strk->len=sz;
 278         strk->lstart=strk->llen=0;
 279         for(p=(unsigned char *)(strk+1);sz;--sz,++p) *p^=0x80;
 280       }
 281       fclose(h);
 282     }
 283   }
 284   sprintf(s,"%sA8\\%s.A8",cd_path,nm);
 285   if((fh=fopen(s,"rb"))==NULL) {
 286     ERR_fatal("Не могу открыть файл %s",s);
 287   }
 288   myfread(&ah,1,sizeof(ah)-4,fh);
 289   if(ah.id!=A8_ID || ah.ver!=0) ERR_fatal("Испорченный файл A8 %s",s);
 290   fseek(fh,0,SEEK_END);
 291   fsz=ftell(fh)-sizeof(ah)+4;
 292   fseek(fh,sizeof(ah)-4,SEEK_SET);
 293   if((fdata=malloc(fsz))!=NULL) {
 294     wait_scr(fsz);
 295     myfread(fdata,1,fsz,fh);
 296     fdptr=0;
 297     fclose(fh);fh=NULL;
 298   }else if(!(frp=malloc(ah.maxfsize))) {
 299     if(strk) {free(strk);strk=NULL;}
 300     if(!(frp=malloc(ah.maxfsize))) {
 301       fclose(fh);fh=NULL;return 0;
 302     }
 303   }
 304   sqw=ah.width/SQ;sqh=ah.height/SQ;
 305   frame=-1;
 306   norm_gamma=gammaa;
 307   if(wscr) blank_scr();
 308
 309
 310   return 1;
 311 */
 312
 313     return 0;
 314 }
 315
 316 //----------//
 317 //----------//