X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=dosdemo;a=blobdiff_plain;f=src%2Fdos%2Fvbe.c;fp=src%2Fdos%2Fvbe.c;h=0000000000000000000000000000000000000000;hp=5b1afb51b179d61996ed2f9b728b6b7701b18534;hb=e306e700b04607927f659948590c2c2ed234157e;hpb=5f36e95f19ad8d7a5a1dd546ffeb54ce95d51749

diff --git a/src/dos/vbe.c b/src/dos/vbe.c
deleted file mode 100644
index 5b1afb5..0000000
--- a/src/dos/vbe.c
+++ /dev/null
@@ -1,212 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include <conio.h>
-#include "vbe.h"
-#include "cdpmi.h"
-#include "inttypes.h"
-
-#ifdef __DJGPP__
-#include <pc.h>
-#include <sys/nearptr.h>
-
-#define SEG_ADDR(s)	(((uint32_t)(s) << 4) - __djgpp_base_address)
-
-#define outp(p, v)	outportb(p, v)
-#else
-#define SEG_ADDR(s)	((uint32_t)(s) << 4)
-#endif
-
-/* VGA DAC registers used for palette setting in 8bpp modes */
-#define VGA_DAC_STATE		0x3c7
-#define VGA_DAC_ADDR_RD		0x3c7
-#define VGA_DAC_ADDR_WR		0x3c8
-#define VGA_DAC_DATA		0x3c9
-
-#define MODE_LFB	(1 << 14)
-
-
-struct vbe_info *vbe_get_info(void)
-{
-	static uint16_t info_block_seg, info_block_selector;
-	static struct vbe_info *info;
-	struct dpmi_real_regs regs;
-
-	if(!info) {
-		/* allocate 32 paragraphs (512 bytes) */
-		info_block_seg = dpmi_alloc(32, &info_block_selector);
-		info = (struct vbe_info*)SEG_ADDR(info_block_seg);
-	}
-
-	memcpy(info->sig, "VBE2", 4);
-
-	memset(&regs, 0, sizeof regs);
-	regs.es = info_block_seg;
-	regs.eax = 0x4f00;
-
-	dpmi_real_int(0x10, &regs);
-
-	return info;
-}
-
-struct vbe_mode_info *vbe_get_mode_info(int mode)
-{
-	static uint16_t mode_info_seg, mode_info_selector;
-	static struct vbe_mode_info *mi;
-	struct dpmi_real_regs regs;
-
-	if(!mi) {
-		/* allocate 16 paragraphs (256 bytes) */
-		mode_info_seg = dpmi_alloc(16, &mode_info_selector);
-		mi = (struct vbe_mode_info*)SEG_ADDR(mode_info_seg);
-	}
-
-	memset(&regs, 0, sizeof regs);
-	regs.es = mode_info_seg;
-	regs.eax = 0x4f01;
-	regs.ecx = mode;
-	regs.es = mode_info_seg;
-
-	dpmi_real_int(0x10, &regs);
-	if(regs.eax & 0xff00) {
-		return 0;
-	}
-
-	return mi;
-}
-
-int vbe_set_mode(int mode)
-{
-	struct dpmi_real_regs regs;
-
-	memset(&regs, 0, sizeof regs);
-	regs.eax = 0x4f02;
-	regs.ebx = mode;
-	dpmi_real_int(0x10, &regs);
-
-	if(regs.eax == 0x100) {
-		return -1;
-	}
-	return 0;
-}
-
-int vbe_set_palette_bits(int bits)
-{
-	struct dpmi_real_regs regs;
-
-	memset(&regs, 0, sizeof regs);
-	regs.eax = 0x4f08;
-	regs.ebx = bits << 8;	/* bits in bh */
-	dpmi_real_int(0x10, &regs);
-
-	if(((regs.eax >> 8) & 0xff) == 3) {
-		return -1;
-	}
-	return regs.ebx >> 8 & 0xff;	/* new color bits in bh */
-}
-
-/* TODO: implement palette setting through the VBE2 interface for
- * non-VGA displays (actually don't).
- */
-void vbe_set_palette(int idx, int *col, int count, int bits)
-{
-	int i, shift = 8 - bits;
-
-	outp(VGA_DAC_ADDR_WR, idx);
-
-	for(i=0; i<count; i++) {
-		unsigned char r = *col++;
-		unsigned char g = *col++;
-		unsigned char b = *col++;
-
-		if(shift) {
-			r >>= shift;
-			g >>= shift;
-			b >>= shift;
-		}
-
-		outp(VGA_DAC_DATA, r);
-		outp(VGA_DAC_DATA, g);
-		outp(VGA_DAC_DATA, b);
-	}
-}
-
-int vbe_set_disp_start(int x, int y, int when)
-{
-	struct dpmi_real_regs regs;
-
-	memset(&regs, 0, sizeof regs);
-	regs.eax = 0x4f07;
-	regs.ebx = when & 0xffff;
-	regs.ecx = x & 0xffff;
-	regs.edx = y & 0xffff;
-	dpmi_real_int(0x10, &regs);
-
-	if(regs.eax == 0x100) {
-		return -1;
-	}
-	return 0;
-}
-
-int vbe_set_scanlen(int len, int mode)
-{
-	struct dpmi_real_regs regs;
-
-	memset(&regs, 0, sizeof regs);
-	regs.eax = 0x4f06;
-	regs.ebx = mode;
-	regs.ecx = len & 0xffff;
-	dpmi_real_int(0x10, &regs);
-
-	if(regs.eax == 0x100) {
-		return -1;
-	}
-	return regs.ecx & 0xffff;
-}
-
-int vbe_get_scanlen(int mode)
-{
-	int res;
-	struct dpmi_real_regs regs;
-
-	memset(&regs, 0, sizeof regs);
-	regs.eax = 0x4f06;
-	regs.ebx = 1;
-	dpmi_real_int(0x10, &regs);
-
-	if(regs.eax == 0x100) {
-		return -1;
-	}
-
-	if(mode == VBE_SCANLEN_PIXELS) {
-		res = regs.ecx & 0xffff;
-	} else {
-		res = regs.ebx & 0xffff;
-	}
-	return res;
-}
-
-
-static unsigned int get_mask(int sz, int pos)
-{
-	unsigned int i, mask = 0;
-
-	for(i=0; i<sz; i++) {
-		mask |= 1 << i;
-	}
-	return mask << pos;
-}
-
-void print_mode_info(FILE *fp, struct vbe_mode_info *mi)
-{
-	fprintf(fp, "resolution: %dx%d\n", mi->xres, mi->yres);
-	fprintf(fp, "color depth: %d\n", mi->bpp);
-	fprintf(fp, "mode attributes: %x\n", mi->mode_attr);
-	fprintf(fp, "bytes per scanline: %d\n", mi->scanline_bytes);
-	fprintf(fp, "number of planes: %d\n", (int)mi->num_planes);
-	fprintf(fp, "number of banks: %d\n", (int)mi->num_banks);
-	fprintf(fp, "mem model: %d\n", (int)mi->mem_model);
-	fprintf(fp, "red bits: %d (mask: %x)\n", (int)mi->rmask_size, get_mask(mi->rmask_size, mi->rpos));
-	fprintf(fp, "green bits: %d (mask: %x)\n", (int)mi->gmask_size, get_mask(mi->gmask_size, mi->gpos));
-	fprintf(fp, "blue bits: %d (mask: %x)\n", (int)mi->bmask_size, get_mask(mi->bmask_size, mi->bpos));
-	fprintf(fp, "framebuffer address: %x\n", (unsigned int)mi->fb_addr);
-}