summaryrefslogtreecommitdiff
path: root/roms/vgabios/vbetables-gen.c
diff options
context:
space:
mode:
Diffstat (limited to 'roms/vgabios/vbetables-gen.c')
-rw-r--r--roms/vgabios/vbetables-gen.c261
1 files changed, 261 insertions, 0 deletions
diff --git a/roms/vgabios/vbetables-gen.c b/roms/vgabios/vbetables-gen.c
new file mode 100644
index 000000000..550935a72
--- /dev/null
+++ b/roms/vgabios/vbetables-gen.c
@@ -0,0 +1,261 @@
+/* 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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 12:30:13 +0000