vgabios/vbetables-gen.c

   1 /* Generate the VGABIOS VBE Tables */
   2 #include <stdlib.h>
   3 #include <stdio.h>
   4
   5 #define VBE_DISPI_TOTAL_VIDEO_MEMORY_MB 16
   6
   7 typedef struct {
   8     int width;
   9     int height;
  10     int depth;
  11     int mode;
  12 } ModeInfo;
  13
  14 ModeInfo modes[] = {
  15     /* standard VESA modes */
  16 { 640, 400, 8                          , 0x100},
  17 { 640, 480, 8                          , 0x101},
  18 { 800, 600, 4                          , 0x102},
  19 { 800, 600, 8                          , 0x103},
  20 { 1024, 768, 4                         , 0x104},
  21 { 1024, 768, 8                         , 0x105},
  22 { 1280, 1024, 4                        , 0x106},
  23 { 1280, 1024, 8                        , 0x107},
  24 { 320, 200, 15                       , 0x10D},
  25 { 320, 200, 16                        , 0x10E},
  26 { 320, 200, 24                        , 0x10F},
  27 { 640, 480, 15                       , 0x110},
  28 { 640, 480, 16                        , 0x111},
  29 { 640, 480, 24                        , 0x112},
  30 { 800, 600, 15                       , 0x113},
  31 { 800, 600, 16                        , 0x114},
  32 { 800, 600, 24                        , 0x115},
  33 { 1024, 768, 15                      , 0x116},
  34 { 1024, 768, 16                       , 0x117},
  35 { 1024, 768, 24                       , 0x118},
  36 { 1280, 1024, 15                     , 0x119},
  37 { 1280, 1024, 16                      , 0x11A},
  38 { 1280, 1024, 24                      , 0x11B},
  39 { 1600, 1200, 8                        , 0x11C},
  40 { 1600, 1200, 15                     , 0x11D},
  41 { 1600, 1200, 16                      , 0x11E},
  42 { 1600, 1200, 24                      , 0x11F},
  43
  44       /* BOCHS/PLE, 86 'own' mode numbers */
  45 { 320, 200, 32                        , 0x140},
  46 { 640, 400, 32                        , 0x141},
  47 { 640, 480, 32                        , 0x142},
  48 { 800, 600, 32                        , 0x143},
  49 { 1024, 768, 32                       , 0x144},
  50 { 1280, 1024, 32                      , 0x145},
  51 { 320, 200, 8                           , 0x146},
  52 { 1600, 1200, 32                      , 0x147},
  53 { 1152, 864, 8                      , 0x148},
  54 { 1152, 864, 15                      , 0x149},
  55 { 1152, 864, 16                      , 0x14a},
  56 { 1152, 864, 24                      , 0x14b},
  57 { 1152, 864, 32                      , 0x14c},
  58 { 1280, 800, 16                      , 0x178},
  59 { 1280, 800, 24                      , 0x179},
  60 { 1280, 800, 32                      , 0x17a},
  61 { 1280, 960, 16                      , 0x17b},
  62 { 1280, 960, 24                      , 0x17c},
  63 { 1280, 960, 32                      , 0x17d},
  64 { 1440, 900, 16                      , 0x17e},
  65 { 1440, 900, 24                      , 0x17f},
  66 { 1440, 900, 32                      , 0x180},
  67 { 1400, 1050, 16                     , 0x181},
  68 { 1400, 1050, 24                     , 0x182},
  69 { 1400, 1050, 32                     , 0x183},
  70 { 1680, 1050, 16                     , 0x184},
  71 { 1680, 1050, 24                     , 0x185},
  72 { 1680, 1050, 32                     , 0x186},
  73 { 1920, 1200, 16                     , 0x187},
  74 { 1920, 1200, 24                     , 0x188},
  75 { 1920, 1200, 32                     , 0x189},
  76 { 2560, 1600, 16                     , 0x18a},
  77 { 2560, 1600, 24                     , 0x18b},
  78 { 2560, 1600, 32                     , 0x18c},
  79 { 0, },
  80 };
  81
  82 int main(int argc, char **argv)
  83 {
  84   const ModeInfo *pm;
  85   int pages, pitch;
  86   int r_size, r_pos, g_size, g_pos, b_size, b_pos, a_size, a_pos;
  87   const char *str;
  88   long vram_size = VBE_DISPI_TOTAL_VIDEO_MEMORY_MB * 1024 * 1024;
  89
  90   printf("/* THIS FILE IS AUTOMATICALLY GENERATED - DO NOT EDIT */\n\n");
  91   printf("#define VBE_DISPI_TOTAL_VIDEO_MEMORY_MB %d\n\n", VBE_DISPI_TOTAL_VIDEO_MEMORY_MB);
  92   printf("static ModeInfoListItem mode_info_list[]=\n");
  93   printf("{\n");
  94   for (pm = modes; pm->mode != 0; pm++) {
  95     if (pm->depth == 4)
  96       pitch = (pm->width + 7) / 8;
  97     else
  98       pitch = pm->width * ((pm->depth + 7) / 8);
  99     pages = vram_size / (pm->height * pitch);
 100     if (pages > 0) {
 101       printf("{ 0x%04x, /* %dx%dx%d */\n",
 102              pm->mode, pm->width, pm->height, pm->depth);
 103       if (pm->depth == 4)
 104         printf("{ /*Bit16u ModeAttributes*/ %s,\n",
 105                "VBE_MODE_ATTRIBUTE_SUPPORTED | "
 106                "VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE | "
 107                "VBE_MODE_ATTRIBUTE_COLOR_MODE | "
 108                "VBE_MODE_ATTRIBUTE_TTY_BIOS_SUPPORT | "
 109                "VBE_MODE_ATTRIBUTE_GRAPHICS_MODE");
 110       else
 111         printf("{ /*Bit16u ModeAttributes*/ %s,\n",
 112                "VBE_MODE_ATTRIBUTE_SUPPORTED | "
 113                "VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE | "
 114                "VBE_MODE_ATTRIBUTE_COLOR_MODE | "
 115                "VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE | "
 116                "VBE_MODE_ATTRIBUTE_GRAPHICS_MODE");
 117       printf("/*Bit8u  WinAAttributes*/ %s,\n",
 118              "VBE_WINDOW_ATTRIBUTE_RELOCATABLE | "
 119              "VBE_WINDOW_ATTRIBUTE_READABLE | "
 120              "VBE_WINDOW_ATTRIBUTE_WRITEABLE");
 121
 122       printf("/*Bit8u  WinBAttributes*/ %d,\n", 0);
 123
 124       printf("/*Bit16u WinGranularity*/ %s,\n", "VBE_DISPI_BANK_SIZE_KB");
 125
 126       printf("/*Bit16u WinSize*/ %s,\n", "VBE_DISPI_BANK_SIZE_KB");
 127
 128       printf("/*Bit16u WinASegment*/ %s,\n", "VGAMEM_GRAPH");
 129
 130       printf("/*Bit16u WinBSegment*/ 0x%04x,\n", 0);
 131
 132       printf("/*Bit32u WinFuncPtr*/ %d,\n", 0);
 133
 134       printf("/*Bit16u BytesPerScanLine*/ %d,\n", pitch);
 135
 136       // Mandatory information for VBE 1.2 and above
 137       printf("/*Bit16u XResolution*/ %d,\n", pm->width);
 138       printf("/*Bit16u YResolution*/ %d,\n", pm->height);
 139       printf("/*Bit8u  XCharSize*/ %d,\n", 8);
 140       printf("/*Bit8u  YCharSize*/ %d,\n", 16);
 141       if (pm->depth == 4) {
 142         printf("/*Bit8u  NumberOfPlanes*/ %d,\n", 4);
 143       } else {
 144         printf("/*Bit8u  NumberOfPlanes*/ %d,\n", 1);
 145       }
 146       printf("/*Bit8u  BitsPerPixel*/ %d,\n", pm->depth);
 147       printf("/*Bit8u  NumberOfBanks*/ %d,\n",
 148              (pm->height * pitch + 65535) / 65536);
 149
 150       if (pm->depth == 4)
 151         str = "VBE_MEMORYMODEL_PLANAR";
 152       else if (pm->depth == 8)
 153         str = "VBE_MEMORYMODEL_PACKED_PIXEL";
 154       else
 155         str = "VBE_MEMORYMODEL_DIRECT_COLOR";
 156       printf("/*Bit8u  MemoryModel*/ %s,\n", str);
 157       printf("/*Bit8u  BankSize*/ %d,\n", 0);
 158       if (pm->depth == 4)
 159         printf("/*Bit8u  NumberOfImagePages*/ %d,\n", (pages / 4) - 1);
 160       else
 161         printf("/*Bit8u  NumberOfImagePages*/ %d,\n", pages - 1);
 162       printf("/*Bit8u  Reserved_page*/ %d,\n", 0);
 163
 164       // Direct Color fields (required for direct/6 and YUV/7 memory models)
 165       switch(pm->depth) {
 166         case 15:
 167           r_size = 5;
 168           r_pos = 10;
 169           g_size = 5;
 170           g_pos = 5;
 171           b_size = 5;
 172           b_pos = 0;
 173           a_size = 1;
 174           a_pos = 15;
 175           break;
 176         case 16:
 177           r_size = 5;
 178           r_pos = 11;
 179           g_size = 6;
 180           g_pos = 5;
 181           b_size = 5;
 182           b_pos = 0;
 183           a_size = 0;
 184           a_pos = 0;
 185           break;
 186         case 24:
 187           r_size = 8;
 188           r_pos = 16;
 189           g_size = 8;
 190           g_pos = 8;
 191           b_size = 8;
 192           b_pos = 0;
 193           a_size = 0;
 194           a_pos = 0;
 195           break;
 196         case 32:
 197           r_size = 8;
 198           r_pos = 16;
 199           g_size = 8;
 200           g_pos = 8;
 201           b_size = 8;
 202           b_pos = 0;
 203           a_size = 8;
 204           a_pos = 24;
 205           break;
 206         default:
 207           r_size = 0;
 208           r_pos = 0;
 209           g_size = 0;
 210           g_pos = 0;
 211           b_size = 0;
 212           b_pos = 0;
 213           a_size = 0;
 214           a_pos = 0;
 215           break;
 216       }
 217
 218       printf("/*Bit8u  RedMaskSize*/ %d,\n", r_size);
 219       printf("/*Bit8u  RedFieldPosition*/ %d,\n", r_pos);
 220       printf("/*Bit8u  GreenMaskSize*/ %d,\n", g_size);
 221       printf("/*Bit8u  GreenFieldPosition*/ %d,\n", g_pos);
 222       printf("/*Bit8u  BlueMaskSize*/ %d,\n", b_size);
 223       printf("/*Bit8u  BlueFieldPosition*/ %d,\n", b_pos);
 224       printf("/*Bit8u  RsvdMaskSize*/ %d,\n", a_size);
 225       printf("/*Bit8u  RsvdFieldPosition*/ %d,\n", a_pos);
 226       if (pm->depth == 32)
 227         printf("/*Bit8u  DirectColorModeInfo*/ %s,\n",
 228                "VBE_DIRECTCOLOR_RESERVED_BITS_AVAILABLE");
 229       else
 230         printf("/*Bit8u  DirectColorModeInfo*/ %s,\n", "0");
 231
 232 // Mandatory information for VBE 2.0 and above
 233       if (pm->depth > 4)
 234         printf("/*Bit32u PhysBasePtr*/ %s,\n",
 235                "VBE_DISPI_LFB_PHYSICAL_ADDRESS");
 236       else
 237         printf("/*Bit32u PhysBasePtr*/ %s,\n", "0");
 238       printf("/*Bit32u OffScreenMemOffset*/ %d,\n", 0);
 239       printf("/*Bit16u OffScreenMemSize*/ %d,\n", 0);
 240       // Mandatory information for VBE 3.0 and above
 241       printf("/*Bit16u LinBytesPerScanLine*/ %d,\n", pitch);
 242       printf("/*Bit8u  BnkNumberOfPages*/ %d,\n", 0);
 243       printf("/*Bit8u  LinNumberOfPages*/ %d,\n", 0);
 244       printf("/*Bit8u  LinRedMaskSize*/ %d,\n", r_size);
 245       printf("/*Bit8u  LinRedFieldPosition*/ %d,\n", r_pos);
 246       printf("/*Bit8u  LinGreenMaskSize*/ %d,\n", g_size);
 247       printf("/*Bit8u  LinGreenFieldPosition*/ %d,\n", g_pos);
 248       printf("/*Bit8u  LinBlueMaskSize*/ %d,\n", b_size);
 249       printf("/*Bit8u  LinBlueFieldPosition*/ %d,\n", b_pos);
 250       printf("/*Bit8u  LinRsvdMaskSize*/ %d,\n", a_size);
 251       printf("/*Bit8u  LinRsvdFieldPosition*/ %d,\n", a_pos);
 252       printf("/*Bit32u MaxPixelClock*/ %d,\n", 0);
 253       printf("} },\n");
 254     }
 255   }
 256   printf("{ VBE_VESA_MODE_END_OF_LIST,\n");
 257   printf("{ 0,\n");
 258   printf("} },\n");
 259   printf("};\n");
 260   return 0;
 261 }