550935a726a2eea1e80a263e8d864e5068cd9f27
[vgabios.git] / 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/PLEX86 '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 }