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/* Generate the VGABIOS VBE Tables */
#include <stdlib.h>
#include <stdio.h>
#define VBE_DISPI_TOTAL_VIDEO_MEMORY_MB 16
typedef struct {
int width;
int height;
int depth;
int mode;
} ModeInfo;
ModeInfo modes[] = {
/* standard VESA modes */
{ 640, 400, 8 , 0x100},
{ 640, 480, 8 , 0x101},
{ 800, 600, 4 , 0x102},
{ 800, 600, 8 , 0x103},
{ 1024, 768, 4 , 0x104},
{ 1024, 768, 8 , 0x105},
{ 1280, 1024, 4 , 0x106},
{ 1280, 1024, 8 , 0x107},
{ 320, 200, 15 , 0x10D},
{ 320, 200, 16 , 0x10E},
{ 320, 200, 24 , 0x10F},
{ 640, 480, 15 , 0x110},
{ 640, 480, 16 , 0x111},
{ 640, 480, 24 , 0x112},
{ 800, 600, 15 , 0x113},
{ 800, 600, 16 , 0x114},
{ 800, 600, 24 , 0x115},
{ 1024, 768, 15 , 0x116},
{ 1024, 768, 16 , 0x117},
{ 1024, 768, 24 , 0x118},
{ 1280, 1024, 15 , 0x119},
{ 1280, 1024, 16 , 0x11A},
{ 1280, 1024, 24 , 0x11B},
{ 1600, 1200, 8 , 0x11C},
{ 1600, 1200, 15 , 0x11D},
{ 1600, 1200, 16 , 0x11E},
{ 1600, 1200, 24 , 0x11F},
/* BOCHS/PLEX86 'own' mode numbers */
{ 320, 200, 32 , 0x140},
{ 640, 400, 32 , 0x141},
{ 640, 480, 32 , 0x142},
{ 800, 600, 32 , 0x143},
{ 1024, 768, 32 , 0x144},
{ 1280, 1024, 32 , 0x145},
{ 320, 200, 8 , 0x146},
{ 1600, 1200, 32 , 0x147},
{ 1152, 864, 8 , 0x148},
{ 1152, 864, 15 , 0x149},
{ 1152, 864, 16 , 0x14a},
{ 1152, 864, 24 , 0x14b},
{ 1152, 864, 32 , 0x14c},
{ 1280, 800, 16 , 0x178},
{ 1280, 800, 24 , 0x179},
{ 1280, 800, 32 , 0x17a},
{ 1280, 960, 16 , 0x17b},
{ 1280, 960, 24 , 0x17c},
{ 1280, 960, 32 , 0x17d},
{ 1440, 900, 16 , 0x17e},
{ 1440, 900, 24 , 0x17f},
{ 1440, 900, 32 , 0x180},
{ 1400, 1050, 16 , 0x181},
{ 1400, 1050, 24 , 0x182},
{ 1400, 1050, 32 , 0x183},
{ 1680, 1050, 16 , 0x184},
{ 1680, 1050, 24 , 0x185},
{ 1680, 1050, 32 , 0x186},
{ 1920, 1200, 16 , 0x187},
{ 1920, 1200, 24 , 0x188},
{ 1920, 1200, 32 , 0x189},
{ 2560, 1600, 16 , 0x18a},
{ 2560, 1600, 24 , 0x18b},
{ 2560, 1600, 32 , 0x18c},
{ 0, },
};
int main(int argc, char **argv)
{
const ModeInfo *pm;
int pages, pitch;
int r_size, r_pos, g_size, g_pos, b_size, b_pos, a_size, a_pos;
const char *str;
long vram_size = VBE_DISPI_TOTAL_VIDEO_MEMORY_MB * 1024 * 1024;
printf("/* THIS FILE IS AUTOMATICALLY GENERATED - DO NOT EDIT */\n\n");
printf("#define VBE_DISPI_TOTAL_VIDEO_MEMORY_MB %d\n\n", VBE_DISPI_TOTAL_VIDEO_MEMORY_MB);
printf("static ModeInfoListItem mode_info_list[]=\n");
printf("{\n");
for (pm = modes; pm->mode != 0; pm++) {
if (pm->depth == 4)
pitch = (pm->width + 7) / 8;
else
pitch = pm->width * ((pm->depth + 7) / 8);
pages = vram_size / (pm->height * pitch);
if (pages > 0) {
printf("{ 0x%04x, /* %dx%dx%d */\n",
pm->mode, pm->width, pm->height, pm->depth);
if (pm->depth == 4)
printf("{ /*Bit16u ModeAttributes*/ %s,\n",
"VBE_MODE_ATTRIBUTE_SUPPORTED | "
"VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE | "
"VBE_MODE_ATTRIBUTE_COLOR_MODE | "
"VBE_MODE_ATTRIBUTE_TTY_BIOS_SUPPORT | "
"VBE_MODE_ATTRIBUTE_GRAPHICS_MODE");
else
printf("{ /*Bit16u ModeAttributes*/ %s,\n",
"VBE_MODE_ATTRIBUTE_SUPPORTED | "
"VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE | "
"VBE_MODE_ATTRIBUTE_COLOR_MODE | "
"VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE | "
"VBE_MODE_ATTRIBUTE_GRAPHICS_MODE");
printf("/*Bit8u WinAAttributes*/ %s,\n",
"VBE_WINDOW_ATTRIBUTE_RELOCATABLE | "
"VBE_WINDOW_ATTRIBUTE_READABLE | "
"VBE_WINDOW_ATTRIBUTE_WRITEABLE");
printf("/*Bit8u WinBAttributes*/ %d,\n", 0);
printf("/*Bit16u WinGranularity*/ %s,\n", "VBE_DISPI_BANK_SIZE_KB");
printf("/*Bit16u WinSize*/ %s,\n", "VBE_DISPI_BANK_SIZE_KB");
printf("/*Bit16u WinASegment*/ %s,\n", "VGAMEM_GRAPH");
printf("/*Bit16u WinBSegment*/ 0x%04x,\n", 0);
printf("/*Bit32u WinFuncPtr*/ %d,\n", 0);
printf("/*Bit16u BytesPerScanLine*/ %d,\n", pitch);
// Mandatory information for VBE 1.2 and above
printf("/*Bit16u XResolution*/ %d,\n", pm->width);
printf("/*Bit16u YResolution*/ %d,\n", pm->height);
printf("/*Bit8u XCharSize*/ %d,\n", 8);
printf("/*Bit8u YCharSize*/ %d,\n", 16);
if (pm->depth == 4) {
printf("/*Bit8u NumberOfPlanes*/ %d,\n", 4);
} else {
printf("/*Bit8u NumberOfPlanes*/ %d,\n", 1);
}
printf("/*Bit8u BitsPerPixel*/ %d,\n", pm->depth);
printf("/*Bit8u NumberOfBanks*/ %d,\n",
(pm->height * pitch + 65535) / 65536);
if (pm->depth == 4)
str = "VBE_MEMORYMODEL_PLANAR";
else if (pm->depth == 8)
str = "VBE_MEMORYMODEL_PACKED_PIXEL";
else
str = "VBE_MEMORYMODEL_DIRECT_COLOR";
printf("/*Bit8u MemoryModel*/ %s,\n", str);
printf("/*Bit8u BankSize*/ %d,\n", 0);
if (pm->depth == 4)
printf("/*Bit8u NumberOfImagePages*/ %d,\n", (pages / 4) - 1);
else
printf("/*Bit8u NumberOfImagePages*/ %d,\n", pages - 1);
printf("/*Bit8u Reserved_page*/ %d,\n", 0);
// Direct Color fields (required for direct/6 and YUV/7 memory models)
switch(pm->depth) {
case 15:
r_size = 5;
r_pos = 10;
g_size = 5;
g_pos = 5;
b_size = 5;
b_pos = 0;
a_size = 1;
a_pos = 15;
break;
case 16:
r_size = 5;
r_pos = 11;
g_size = 6;
g_pos = 5;
b_size = 5;
b_pos = 0;
a_size = 0;
a_pos = 0;
break;
case 24:
r_size = 8;
r_pos = 16;
g_size = 8;
g_pos = 8;
b_size = 8;
b_pos = 0;
a_size = 0;
a_pos = 0;
break;
case 32:
r_size = 8;
r_pos = 16;
g_size = 8;
g_pos = 8;
b_size = 8;
b_pos = 0;
a_size = 8;
a_pos = 24;
break;
default:
r_size = 0;
r_pos = 0;
g_size = 0;
g_pos = 0;
b_size = 0;
b_pos = 0;
a_size = 0;
a_pos = 0;
break;
}
printf("/*Bit8u RedMaskSize*/ %d,\n", r_size);
printf("/*Bit8u RedFieldPosition*/ %d,\n", r_pos);
printf("/*Bit8u GreenMaskSize*/ %d,\n", g_size);
printf("/*Bit8u GreenFieldPosition*/ %d,\n", g_pos);
printf("/*Bit8u BlueMaskSize*/ %d,\n", b_size);
printf("/*Bit8u BlueFieldPosition*/ %d,\n", b_pos);
printf("/*Bit8u RsvdMaskSize*/ %d,\n", a_size);
printf("/*Bit8u RsvdFieldPosition*/ %d,\n", a_pos);
if (pm->depth == 32)
printf("/*Bit8u DirectColorModeInfo*/ %s,\n",
"VBE_DIRECTCOLOR_RESERVED_BITS_AVAILABLE");
else
printf("/*Bit8u DirectColorModeInfo*/ %s,\n", "0");
// Mandatory information for VBE 2.0 and above
if (pm->depth > 4)
printf("/*Bit32u PhysBasePtr*/ %s,\n",
"VBE_DISPI_LFB_PHYSICAL_ADDRESS");
else
printf("/*Bit32u PhysBasePtr*/ %s,\n", "0");
printf("/*Bit32u OffScreenMemOffset*/ %d,\n", 0);
printf("/*Bit16u OffScreenMemSize*/ %d,\n", 0);
// Mandatory information for VBE 3.0 and above
printf("/*Bit16u LinBytesPerScanLine*/ %d,\n", pitch);
printf("/*Bit8u BnkNumberOfPages*/ %d,\n", 0);
printf("/*Bit8u LinNumberOfPages*/ %d,\n", 0);
printf("/*Bit8u LinRedMaskSize*/ %d,\n", r_size);
printf("/*Bit8u LinRedFieldPosition*/ %d,\n", r_pos);
printf("/*Bit8u LinGreenMaskSize*/ %d,\n", g_size);
printf("/*Bit8u LinGreenFieldPosition*/ %d,\n", g_pos);
printf("/*Bit8u LinBlueMaskSize*/ %d,\n", b_size);
printf("/*Bit8u LinBlueFieldPosition*/ %d,\n", b_pos);
printf("/*Bit8u LinRsvdMaskSize*/ %d,\n", a_size);
printf("/*Bit8u LinRsvdFieldPosition*/ %d,\n", a_pos);
printf("/*Bit32u MaxPixelClock*/ %d,\n", 0);
printf("} },\n");
}
}
printf("{ VBE_VESA_MODE_END_OF_LIST,\n");
printf("{ 0,\n");
printf("} },\n");
printf("};\n");
return 0;
}
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