src/0.c

   1 #include <hw/cpu/cpu.h>\r
   2 #include <hw/dos/dos.h>\r
   3 #include <hw/vga/vga.h>\r
   4 #include <hw/vga/vrl.h>\r
   5 \r
   6 #include "src/tesuto.h"\r
   7 \r
   8 #define FILENAME_1 "data/aconita.vrl"\r
   9 #define FILENAME_2 "data/aconita.pal"\r
  10 //#define FILENAME_2 "data/default.pal"\r
  11 \r
  12 //#define PATTERN\r
  13 #define INITTNUM 1\r
  14 #define DRAWCORNERBOXES \\r
  15 DRAWOTHERCORNERBOX_TOPLEFT; \\r
  16 DRAWOTHERCORNERBOX_TOPRIGHT; \\r
  17 DRAWOTHERCORNERBOX_BOTTOMLEFT; \\r
  18 DRAWOTHERCORNERBOX_BOTTOMRIGHT; \\r
  19 \r
  20 static unsigned char palette[768];\r
  21 player_t player[MaxPlayers];\r
  22 map_view_t mv[4];\r
  23 pan_t pan;\r
  24 \r
  25 int main(int argc,char **argv)\r
  26 {\r
  27         static global_game_variables_t gvar;\r
  28         struct vrl1_vgax_header *vrl_header;\r
  29         vrl1_vgax_offset_t *vrl_lineoffs;\r
  30         unsigned char *buffer;\r
  31         unsigned int bufsz;\r
  32         int fd, i;\r
  33         char *bakapee1,*bakapee2;\r
  34         boolean anim=1,noanim=0;\r
  35         pan.pn=0;\r
  36 \r
  37         bakapee1=malloc(64);\r
  38         bakapee2=malloc(1024);\r
  39 \r
  40         if (argc < 2) {\r
  41                 //fprintf(stderr,"drawvrl <VRL file> <palette file>\n palette file optional\n");\r
  42                 bakapee1 = FILENAME_1;//"data/aconita.vrl";\r
  43                 bakapee2 = FILENAME_2;//"data/aconita.pal";\r
  44 \r
  45         }else{\r
  46                 if(argv[1]) bakapee1 = argv[1];\r
  47                 if(argv[2]) bakapee2 = argv[2];\r
  48         }\r
  49 \r
  50         fd = open(bakapee1,O_RDONLY|O_BINARY);\r
  51         if (fd < 0) {\r
  52                 fprintf(stderr,"Unable to open '%s'\n", bakapee1);\r
  53                 return 1;\r
  54         }\r
  55         {\r
  56                 unsigned long sz = lseek(fd,0,SEEK_END);\r
  57                 if (sz < sizeof(*vrl_header)) return 1;\r
  58                 if (sz >= 65535UL) return 1;\r
  59 \r
  60                 bufsz = (unsigned int)sz;\r
  61                 buffer = malloc(bufsz);\r
  62                 if (buffer == NULL) return 1;\r
  63 \r
  64                 lseek(fd,0,SEEK_SET);\r
  65                 if ((unsigned int)read(fd,buffer,bufsz) < bufsz) return 1;\r
  66 \r
  67                 vrl_header = (struct vrl1_vgax_header*)buffer;\r
  68                 if (memcmp(vrl_header->vrl_sig,"VRL1",4) || memcmp(vrl_header->fmt_sig,"VGAX",4)) return 1;\r
  69                 if (vrl_header->width == 0 || vrl_header->height == 0) return 1;\r
  70         }\r
  71         close(fd);\r
  72 \r
  73         probe_dos();\r
  74         if (!probe_vga()) {\r
  75                 printf("VGA probe failed\n");\r
  76                 return 1;\r
  77         }\r
  78         VGAmodeX(1, 1, &gvar);\r
  79 \r
  80         /* load color palette */\r
  81         fd = open(bakapee2,O_RDONLY|O_BINARY);\r
  82         if (fd >= 0) {\r
  83                 unsigned int i;\r
  84 \r
  85                 read(fd,palette,768);\r
  86                 close(fd);\r
  87 \r
  88                 vga_palette_lseek(0);\r
  89                 for (i=0;i < 256;i++) vga_palette_write(palette[(i*3)+0]>>2,palette[(i*3)+1]>>2,palette[(i*3)+2]>>2);\r
  90         }\r
  91 \r
  92         /* preprocess the sprite to generate line offsets */\r
  93         vrl_lineoffs = vrl1_vgax_genlineoffsets(vrl_header,buffer+sizeof(*vrl_header),bufsz-sizeof(*vrl_header));\r
  94         if (vrl_lineoffs == NULL) return 1;\r
  95 \r
  96         IN_Startup();\r
  97         IN_Default(0,&player,ctrl_Keyboard1);\r
  98         IN_initplayer(&player, 0);\r
  99 \r
 100         /* setup camera and screen~ */\r
 101         modexHiganbanaPageSetup(&gvar.video);\r
 102         modexShowPage(&(gvar.video.page[pan.pn]));\r
 103         for(i=0;i<gvar.video.num_of_pages;i++)\r
 104         {\r
 105                 mv[i].page = &gvar.video.page[i];\r
 106                 mv[i].video = &gvar.video;\r
 107                 mv[i].pan       = &pan;\r
 108                 mv[i].tx        = INITTNUM;\r
 109                 mv[i].ty        = INITTNUM;\r
 110         }\r
 111         //player[0].tx = INITTNUM; player[0].ty = INITTNUM;\r
 112         //mapinitmapview(mv, player[0].tx, player[0].tx);\r
 113 \r
 114 \r
 115         #define VMEMHEIGHT gvar.video.page[0].height+gvar.video.page[1].height\r
 116 \r
 117         //4     this draws that pattern on the screen\r
 118         {\r
 119                 unsigned int i,j,o;\r
 120                 /* fill screen with a distinctive pattern */\r
 121                 for (i=0;i < gvar.video.page[0].width;i++) {\r
 122                         o = i >> 2;\r
 123                         vga_write_sequencer(0x02/*map mask*/,1 << (i&3));\r
 124                         for (j=0;j < VMEMHEIGHT;j++,o += gvar.video.page[0].stridew)\r
 125                                 vga_state.vga_graphics_ram[o] = (i^j)&15; // VRL samples put all colors in first 15!\r
 126                 }\r
 127         }\r
 128 \r
 129         DRAWCORNERBOXES;\r
 130 \r
 131         /* make distinctive pattern offscreen, render sprite, copy onscreen.\r
 132          * this time, we render the distinctive pattern to another offscreen location and just copy.\r
 133          * note this version is much faster too! */\r
 134         {\r
 135                 unsigned int i,o,o2;\r
 136                 int x,y,rx,ry,w,h;\r
 137                 unsigned int overdraw = 1;      // how many pixels to "overdraw" so that moving sprites with edge pixels don't leave streaks.\r
 138                                                 // if the sprite's edge pixels are clear anyway, you can set this to 0.\r
 139                 VGA_RAM_PTR omemptr;\r
 140                 int xdir=1,ydir=1;\r
 141 \r
 142                 int j;\r
 143                 /* fill pattern offset with a distinctive pattern */\r
 144                 for (i=0;i < gvar.video.page[0].width;i++) {\r
 145                         o = (i >> 2) + (0x10000UL - (uint16_t)gvar.video.page[1].data);\r
 146                         vga_write_sequencer(0x02/*map mask*/,1 << (i&3));\r
 147                         for (j=0;j < VMEMHEIGHT;j++,o += gvar.video.page[0].stridew)\r
 148                                 vga_state.vga_graphics_ram[o] = (i^j)&15; // VRL samples put all colors in first 15!\r
 149                 }\r
 150 \r
 151                 DRAWCORNERBOXES;\r
 152 \r
 153                 /* starting coords. note: this technique is limited to x coordinates of multiple of 4 */\r
 154                 x = -(gvar.video.page[0].dx);\r
 155                 y = -(gvar.video.page[0].dy);\r
 156 \r
 157                 /* do it */\r
 158                 omemptr = vga_state.vga_graphics_ram; // save original mem ptr\r
 159 \r
 160                 while(!IN_KeyDown(sc_Escape))\r
 161                 {\r
 162                         IN_ReadControl(0,&player);\r
 163                         PANKEY0EXE;\r
 164                         if(IN_KeyDown(68) || IN_KeyDown(sc_Space))      //f10 and space\r
 165                         {\r
 166                                 //gvar.kurokku.fpscap=!gvar.kurokku.fpscap;\r
 167                                 anim=!anim;\r
 168                                 IN_UserInput(1,1);\r
 169                         }\r
 170                         FUNCTIONKEYFUNCTIONS0EXE;\r
 171                         if(IN_KeyDown(sc_R)){\r
 172                                 gvar.video.page[0].dx=gvar.video.page[0].dy=gvar.video.page[1].dx=gvar.video.page[1].dy=16;\r
 173                                 modexShowPage(&(gvar.video.page[pan.pn]));\r
 174                                 player[0].q = 1; player[0].d = 2;\r
 175                         } //R\r
 176 \r
 177                         if(anim && !noanim)\r
 178                         {\r
 179                                 /* render box bounds. y does not need modification, but x and width must be multiple of 4 */\r
 180                                 if (x >= overdraw) rx = (x - overdraw) & (~3);\r
 181                                 else rx = -(gvar.video.page[0].dx);\r
 182                                 if (y >= overdraw) ry = (y - overdraw);\r
 183                                 else ry = -(gvar.video.page[0].dy);\r
 184                                 h = vrl_header->height + overdraw + y - ry;\r
 185                                 w = (x + vrl_header->width + (overdraw*2) + 3/*round up*/ - rx) & (~3);\r
 186                                 if ((rx+w) > gvar.video.page[0].width) w = gvar.video.page[0].width-rx;\r
 187                                 if ((ry+h) > gvar.video.page[0].height) h = gvar.video.page[0].height-ry;\r
 188 \r
 189                                 /* block copy pattern to where we will draw the sprite */\r
 190                                 vga_setup_wm1_block_copy();\r
 191                                 o2 = gvar.video.page[0].pagesize;\r
 192                                 o = (0x10000UL - (uint16_t)gvar.video.page[1].data) + (ry * gvar.video.page[0].stridew) + (rx >> 2); // source offscreen\r
 193                                 for (i=0;i < h;i++,o += gvar.video.page[0].stridew,o2 += (w >> 2)) vga_wm1_mem_block_copy(o2,o,w >> 2);\r
 194                                 /* must restore Write Mode 0/Read Mode 0 for this code to continue drawing normally */\r
 195                                 vga_restore_rm0wm0();\r
 196 \r
 197                                 /* replace VGA stride with our own and mem ptr. then sprite rendering at this stage is just (0,0) */\r
 198                                 vga_state.vga_draw_stride_limit = (gvar.video.page[0].width + 3/*round up*/ - x) >> 2;\r
 199                                 vga_state.vga_draw_stride = w >> 2;\r
 200                                 vga_state.vga_graphics_ram = omemptr + gvar.video.page[0].pagesize;\r
 201 \r
 202                                 /* then the sprite. note modding ram ptr means we just draw to (x&3,0) */\r
 203 draw_vrl1_vgax_modex(x-rx,y-ry,vrl_header,vrl_lineoffs,buffer+sizeof(*vrl_header),bufsz-sizeof(*vrl_header));\r
 204 \r
 205                                 /* restore ptr */\r
 206                                 vga_state.vga_graphics_ram = omemptr;\r
 207 \r
 208                                 /* block copy to visible RAM from offscreen */\r
 209                                 vga_setup_wm1_block_copy();\r
 210                                 o = gvar.video.page[0].pagesize; // source offscreen\r
 211                                 o2 = (ry * gvar.video.page[0].stridew) + (rx >> 2); // dest visible (original stride)\r
 212                                 for (i=0;i < h;i++,o += vga_state.vga_draw_stride,o2 += gvar.video.page[0].stridew) vga_wm1_mem_block_copy(o2,o,w >> 2);\r
 213                                 /* must restore Write Mode 0/Read Mode 0 for this code to continue drawing normally */\r
 214                                 vga_restore_rm0wm0();\r
 215 \r
 216                                 /* restore stride */\r
 217                                 vga_state.vga_draw_stride_limit = vga_state.vga_draw_stride = gvar.video.page[0].stridew;\r
 218 \r
 219                                 /* step */\r
 220                                 x += xdir; y += ydir;\r
 221                                 if ((x + vrl_header->width) >= ((gvar.video.page[0].width + gvar.video.page[0].dx) - 1) || x == -(gvar.video.page[0].dx))\r
 222                                         xdir = -xdir;\r
 223                                 if ((y + vrl_header->height) >= ((gvar.video.page[0].height + gvar.video.page[0].dy) - 1) || y == -(gvar.video.page[0].dy))\r
 224                                         ydir = -ydir;\r
 225                                 //printf("[x%u y%u]     [rx%u ry%u]             [w%u h%u]\n", x, y, rx, ry, w, h);\r
 226                         }\r
 227                 }\r
 228         }\r
 229 \r
 230         IN_UserInput(1,1);\r
 231 \r
 232 //      while(!IN_KeyDown(sc_Escape))\r
 233 //      {\r
 234 //              IN_ReadControl(0,&player);\r
 235 //              PANKEY0EXE;\r
 236 //      }\r
 237 \r
 238 //===========================================================================//\r
 239 \r
 240         modexShowPage(&(gvar.video.page[0]));\r
 241 if(!noanim) {\r
 242         /* another handy "demo" effect using VGA write mode 1.\r
 243          * we can take what's on screen and vertically squash it like an old analog TV set turning off. */\r
 244         {\r
 245                 unsigned int blank_line_ofs = (gvar.video.page[0].stridew * gvar.video.page[0].height * 2);\r
 246                 unsigned int copy_ofs = (gvar.video.page[0].stridew * gvar.video.page[0].height);\r
 247                 unsigned int display_ofs = 0x0000;\r
 248                 unsigned int i,y,soh,doh,dstart;\r
 249                 unsigned int dh_blankfill = 8;\r
 250                 unsigned int dh_step = 8;\r
 251                 uint32_t sh,dh,yf,ystep;\r
 252 \r
 253                 /* copy active display (0) to offscreen buffer (0x4000) */\r
 254                 vga_state.vga_draw_stride_limit = vga_state.vga_draw_stride = gvar.video.page[0].stridew;\r
 255                 vga_setup_wm1_block_copy();\r
 256                 vga_wm1_mem_block_copy(copy_ofs,display_ofs,gvar.video.page[0].stridew * gvar.video.page[0].height);\r
 257                 vga_restore_rm0wm0();\r
 258 \r
 259                 /* need a blank line as well */\r
 260                 for (i=0;i < gvar.video.page[0].stridew;i++) vga_state.vga_graphics_ram[i+blank_line_ofs] = 0;\r
 261 \r
 262                 sh = dh = gvar.video.page[0].height;\r
 263                 while (dh >= dh_step) {\r
 264                         /* stop animating if the user hits ENTER */\r
 265                         if (kbhit()) {\r
 266                                 if (getch() == 13) break;\r
 267                         }\r
 268 \r
 269                         /* wait for vsync end */\r
 270                         vga_wait_for_vsync_end();\r
 271 \r
 272                         /* what scalefactor to use for stretching? */\r
 273                         ystep = (0x10000UL * sh) / dh;\r
 274                         dstart = (gvar.video.page[0].height - dh) / 2; // center the squash effect on screen, otherwise it would squash to top of screen\r
 275                         doh = display_ofs;\r
 276                         soh = copy_ofs;\r
 277                         yf = 0;\r
 278                         y = 0;\r
 279 \r
 280                         /* for performance, keep VGA in write mode 1 the entire render */\r
 281                         vga_setup_wm1_block_copy();\r
 282 \r
 283                         /* blank lines */\r
 284                         if (dstart >= dh_blankfill) y = dstart - dh_blankfill;\r
 285                         else y = 0;\r
 286                         doh = gvar.video.page[0].stridew * y;\r
 287 \r
 288                         while (y < dstart) {\r
 289                                 vga_wm1_mem_block_copy(doh,blank_line_ofs,gvar.video.page[0].stridew);\r
 290                                 doh += gvar.video.page[0].stridew;\r
 291                                 y++;\r
 292                         }\r
 293 \r
 294                         /* draw */\r
 295                         while (y < (dh+dstart)) {\r
 296                                 soh = copy_ofs + ((yf >> 16UL) * gvar.video.page[0].stridew);\r
 297                                 vga_wm1_mem_block_copy(doh,soh,gvar.video.page[0].stridew);\r
 298                                 doh += gvar.video.page[0].stridew;\r
 299                                 yf += ystep;\r
 300                                 y++;\r
 301                         }\r
 302 \r
 303                         /* blank lines */\r
 304                         while (y < gvar.video.page[0].height && y < (dh+dstart+dh_blankfill)) {\r
 305                                 vga_wm1_mem_block_copy(doh,blank_line_ofs,gvar.video.page[0].stridew);\r
 306                                 doh += gvar.video.page[0].stridew;\r
 307                                 y++;\r
 308                         }\r
 309 \r
 310                         /* done */\r
 311                         vga_restore_rm0wm0();\r
 312 \r
 313                         /* wait for vsync */\r
 314                         vga_wait_for_vsync();\r
 315 \r
 316                         /* make it shrink */\r
 317                         dh -= dh_step;\r
 318                         if (dh < 40) dh_step = 1;\r
 319                 }\r
 320         }\r
 321 }\r
 322         IN_Shutdown();\r
 323         VGAmodeX(0, 1, &gvar);\r
 324         free(vrl_lineoffs);\r
 325         buffer = NULL;\r
 326         free(buffer);\r
 327         bufsz = 0;\r
 328         free(bakapee1);\r
 329         free(bakapee2);\r
 330         //printf("mv 0\n        tx=%d   ty=%d\n\n", mv[0].tx, mv[0].tx);\r
 331         //printf("mv 1\n        tx=%d   ty=%d\n", mv[1].tx, mv[1].tx);\r
 332         return 0;\r
 333 }\r