plzpart/plzfill.c

   1 #include "tweak.h"\r
   2 \r
   3 extern far void do_line(char far *to, int dx, int dy, int cnt, char far *from, long txx1, long txy1, long txx2, long txy2, int dseg);\r
   4 extern far void do_block(int ycnt);\r
   5 extern far void do_clear(char far *vmem, int far *otau, int far *ntau);\r
   6 \r
   7 extern int acstau[256];\r
   8 int     sini[2000];\r
   9 char    (* far vmem)[160]=MK_FP(0x0a000,0);\r
  10 /*extern*/ char far kuva1[128][256];\r
  11 /*extern*/ char far kuva2[128][256];\r
  12 /*extern*/ char far kuva3[128][256];\r
  13 /*extern*/ char far dist1[128][256];\r
  14 char    far buu[1000];\r
  15 char    sinx[128], siny[128];\r
  16 char    pal[768];\r
  17 \r
  18 int     clrtau[8][256][2];\r
  19 int     clrptr=0;\r
  20 \r
  21 void initvect() {\r
  22         int     a/*,b*/,x,y,s/*,d=0,p=0,ch*/;\r
  23 \r
  24         for(a=0;a<1524;a++)\r
  25                 {\r
  26                 sini[a]=s=sin(a/1024.0*M_PI*4)*127;\r
  27                 s-=sini[a];\r
  28                 }\r
  29 \r
  30 /*      for(a=0;a<65;a++) for(b=0;b<256;b++) // chessboard\r
  31                 { x=1; if((a>>4)&1) x^=3; if((b>>5)&1) x^=3; kuva[a][b]=x; }\r
  32 \r
  33         pal[0*192+3*1]=pal[0*192+3*1+1]=pal[0*192+3*1+2]=40;\r
  34         pal[0*192+3*2]=pal[0*192+3*2+1]=pal[0*192+3*2+2]=60;\r
  35 */\r
  36         for(a=1;a<32;a++)               // must-sini-valk\r
  37                 { pal[0*192+a*3]=0; pal[0*192+a*3+1]=0; pal[0*192+a*3+2]=a*2; }\r
  38         for(a=0;a<32;a++)\r
  39                 { pal[0*192+a*3+32*3]=a*2; pal[0*192+a*3+1+32*3]=a*2; pal[0*192+a*3+2+32*3]=63; }\r
  40 \r
  41         for(a=0;a<32;a++)               // must-pun-kelt\r
  42                 { pal[1*192+a*3]=a*2; pal[1*192+a*3+1]=0; pal[1*192+a*3+2]=0; }\r
  43         for(a=0;a<32;a++)\r
  44                 { pal[1*192+a*3+32*3]=63; pal[1*192+a*3+1+32*3]=a*2; pal[1*192+a*3+2+32*3]=0; }\r
  45 \r
  46 \r
  47         for(a=0;a<32;a++)               // must-orans-viol\r
  48                 { pal[2*192+a*3]=a; pal[2*192+a*3+1]=0; pal[2*192+a*3+2]=a*2/3; }\r
  49         for(a=0;a<32;a++)\r
  50                 { pal[2*192+a*3+32*3]=31-a; pal[2*192+a*3+1+32*3]=a*2; pal[2*192+a*3+2+32*3]=21; }\r
  51 \r
  52 \r
  53         for(y=0;y<64;y++) for(x=0;x<256;x++)\r
  54                 {\r
  55                 kuva1[y][x]=sini[(y*4+sini[x*2])&511]/4+32;\r
  56                 kuva2[y][x]=sini[(y*4+sini[x*2])&511]/4+32+64;\r
  57                 kuva3[y][x]=sini[(y*4+sini[x*2])&511]/4+32+128;\r
  58                 }\r
  59 \r
  60         for(y=0;y<128;y++) for(x=0;x<256;x++)\r
  61                 dist1[y][x]=sini[y*8]/3;\r
  62 \r
  63         for(a=0;a<8*256;a++) { clrtau[0][a][0]=640; clrtau[0][a][1]=0; }\r
  64         }\r
  65 \r
  66 extern far char * to;\r
  67 extern far char * from;\r
  68 extern far int * ctau;\r
  69 extern far int dseg;\r
  70 extern far int  xx, yy;\r
  71 extern far long ay1,ay2,ax1,ax2,xx1,yy1,xx2,yy2;\r
  72 extern far long txx1,txy1,tay1,tax1;\r
  73 extern far long txx2,txy2,tay2,tax2;\r
  74 \r
  75 char*   kuvataus[]={&kuva1[0][0],&kuva2[0][0],&kuva3[0][0],&kuva1[0][0]};\r
  76 char*   disttaus[]={&dist1[0][0],&dist1[0][0],&dist1[0][0],&dist1[0][9]};\r
  77 \r
  78 void do_poly(x1,y1,x2,y2,x3,y3,x4,y4,color, dd)\r
  79 int     x1,y1,x2,y2,x3,y3,x4,y4,color, dd;\r
  80         {\r
  81         int     a,/*b,c,d,*/n=0,m,s1,s2,d1,d2,dx1,dy1,dx2,dy2;\r
  82 \r
  83         struct  points {\r
  84                 int     x,y; } pnts[4],txt[4]={{64,4},{190,4},{190,60},{64,60}};\r
  85 //              int     x,y; } pnts[4],txt[4]={{1,1},{63,1},{63,63},{1,63}};\r
  86 \r
  87         dd=(dd+1)&63;\r
  88 \r
  89         pnts[0].x=x1; pnts[0].y=y1;\r
  90         pnts[1].x=x2; pnts[1].y=y2;\r
  91         pnts[2].x=x3; pnts[2].y=y3;\r
  92         pnts[3].x=x4; pnts[3].y=y4;\r
  93 \r
  94         for(n=0,a=1;a<4;a++) if(pnts[a].y<pnts[n].y) n=a;\r
  95 \r
  96         s1=n; s2=n; d1=(s1+1)&3; d2=(s2-1)&3;\r
  97         dx1=pnts[d1].x-pnts[s1].x;\r
  98         dy1=pnts[d1].y-pnts[s1].y; if(dy1==0) dy1++;\r
  99         ax1=65536L*dx1/dy1;\r
 100         xx1=((long)pnts[s1].x<<16)+0x8000L;\r
 101         txx1=((long)txt[s1].x<<16)+0x8000L;\r
 102         txy1=((long)txt[s1].y<<16)+0x8000L;\r
 103         tax1=65536L*(txt[d1].x-txt[s1].x)/dy1;\r
 104         tay1=65536L*(txt[d1].y-txt[s1].y)/dy1;\r
 105 \r
 106         dx2=pnts[d2].x-pnts[s2].x;\r
 107         dy2=pnts[d2].y-pnts[s2].y; if(dy2==0) dy2++;\r
 108         ax2=65536L*dx2/dy2;\r
 109         xx2=((long)pnts[s2].x<<16)+0x8000L;\r
 110         txx2=((long)txt[s2].x<<16)+0x8000L;\r
 111         txy2=((long)txt[s2].y<<16)+0x8000L;\r
 112         tax2=65536L*(txt[d2].x-txt[s2].x)/dy2;\r
 113         tay2=65536L*(txt[d2].y-txt[s2].y)/dy2;\r
 114 \r
 115         yy=(long)pnts[s1].y;\r
 116         from=MK_FP(kuvataus[color],0);\r
 117         to=vmem[yy];            // initialize gfx pointers\r
 118         dseg=disttaus[color]+dd*16;\r
 119         ctau=&clrtau[clrptr][yy];\r
 120         for(n=0;n<4;)\r
 121                 {\r
 122                 if(pnts[d1].y<pnts[d2].y) m=pnts[d1].y; else m=pnts[d2].y;\r
 123                 do_block(m-yy); yy=m;\r
 124 \r
 125                 if(pnts[d1].y==pnts[d2].y)\r
 126                         {\r
 127                         s1=d1; d1=(s1+1)&3;\r
 128                         s2=d2; d2=(s2-1)&3; n+=2;\r
 129 \r
 130                         dx1=pnts[d1].x-pnts[s1].x;\r
 131                         dy1=pnts[d1].y-pnts[s1].y; if(dy1==0) dy1++;\r
 132                         ax1=65536L*dx1/dy1;\r
 133                         xx1=((long)pnts[s1].x<<16)+0x8000L;\r
 134                         txx1=((long)txt[s1].x<<16)+0x8000L;\r
 135                         txy1=((long)txt[s1].y<<16)+0x8000L;\r
 136                         tax1=65536L*(txt[d1].x-txt[s1].x)/dy1;\r
 137                         tay1=65536L*(txt[d1].y-txt[s1].y)/dy1;\r
 138 \r
 139                         dx2=pnts[d2].x-pnts[s2].x;\r
 140                         dy2=pnts[d2].y-pnts[s2].y; if(dy2==0) dy2++;\r
 141                         ax2=65536L*dx2/dy2;\r
 142                         xx2=((long)pnts[s2].x<<16)+0x8000L;\r
 143                         txx2=((long)txt[s2].x<<16)+0x8000L;\r
 144                         txy2=((long)txt[s2].y<<16)+0x8000L;\r
 145                         tax2=65536L*(txt[d2].x-txt[s2].x)/dy2;\r
 146                         tay2=65536L*(txt[d2].y-txt[s2].y)/dy2;\r
 147                         }\r
 148                 else if(pnts[d1].y<pnts[d2].y)\r
 149                         {\r
 150                         s1=d1; d1=(s1+1)&3; n++;\r
 151                         dx1=pnts[d1].x-pnts[s1].x;\r
 152                         dy1=pnts[d1].y-pnts[s1].y; if(dy1==0) dy1++;\r
 153                         ax1=65536L*dx1/dy1;\r
 154                         xx1=((long)pnts[s1].x<<16)+0x8000L;\r
 155                         txx1=((long)txt[s1].x<<16)+0x8000L;\r
 156                         txy1=((long)txt[s1].y<<16)+0x8000L;\r
 157                         tax1=65536L*(txt[d1].x-txt[s1].x)/dy1;\r
 158                         tay1=65536L*(txt[d1].y-txt[s1].y)/dy1;\r
 159                         }\r
 160                 else    {\r
 161                         s2=d2; d2=(s2-1)&3; n++;\r
 162                         dx2=pnts[d2].x-pnts[s2].x;\r
 163                         dy2=pnts[d2].y-pnts[s2].y; if(dy2==0) dy2++;\r
 164                         ax2=65536L*dx2/dy2;\r
 165                         xx2=((long)pnts[s2].x<<16)+0x8000L;\r
 166                         txx2=((long)txt[s2].x<<16)+0x8000L;\r
 167                         txy2=((long)txt[s2].y<<16)+0x8000L;\r
 168                         tax2=65536L*(txt[d2].x-txt[s2].x)/dy2;\r
 169                         tay2=65536L*(txt[d2].y-txt[s2].y)/dy2;\r
 170                         }\r
 171                 }\r
 172         }\r
 173 \r
 174 void clear()\r
 175         {\r
 176         int     *otau=clrtau[(clrptr-3)&7], *ntau=clrtau[clrptr];\r
 177 \r
 178         clrptr=(clrptr+1)&7;\r
 179 \r
 180         do_clear(vmem[0],otau,ntau);\r
 181         }\r
 182 \r