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