X-Git-Url: http://4ch.mooo.com/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fmodex16.c;h=e5550b4c130f4a969a514d6df63c9f2393d35988;hb=3b3f3b4bc62245426ea4dec22cbfaa7cfbf13645;hp=1e086ea74f130cc9444f67f9a68f2c0a3938f7a8;hpb=a36921f9d31cc4a8e6a8041d5b9968b2cf4bb860;p=16.git

diff --git a/src/lib/modex16.c b/src/lib/modex16.c
index 1e086ea7..e5550b4c 100644
--- a/src/lib/modex16.c
+++ b/src/lib/modex16.c
@@ -20,9 +20,6 @@
  *
  */
 
-#include <dos.h>
-#include <string.h>
-#include <mem.h>
 #include <conio.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -31,7 +28,37 @@
 byte far* VGA=(byte far*) 0xA0000000;   /* this points to video memory. */
 
 static void fadePalette(sbyte fade, sbyte start, word iter, byte *palette);
-static byte tmppal[PAL_SIZE];
+static byte tmppal[PAL_SIZE];
+int old_mode;
+
+/////////////////////////////////////////////////////////////////////////////
+//																														//
+// setvideo() - This function Manages the video modes												//
+//																														//
+/////////////////////////////////////////////////////////////////////////////
+void VGAmodeX(sword vq)
+{
+	union REGS in, out;
+
+	if(!vq)
+	{ // deinit the video
+		// change to the video mode we were in before we switched to mode 13h
+		modexLeave();
+		in.h.ah = 0x00;
+		in.h.al = old_mode;
+		int86(0x10, &in, &out);
+
+	}
+	else if(vq==1)
+	{ // init the video
+		// get old video mode
+		in.h.ah = 0xf;
+		int86(0x10, &in, &out);
+		old_mode = out.h.al;
+		// enter mode
+		modexEnter();
+	}
+}
 
 static void
 vgaSetMode(byte mode)
@@ -650,7 +677,7 @@ modexPalWhite() {
 }
 
 
-/* utility */
+/* utility */
 void
 modexPalUpdate(bitmap_t *bmp, word *i, word qp, word aqoffset)
 {
@@ -957,7 +984,7 @@ void modexputPixel(page_t *page, int x, int y, byte color)
 	   offset = (width * y + x) / 4, and write the given
 	   color to the plane we selected above.  Heed the active
 	   page start selection. */
-	VGA[(unsigned)((SCREEN_WIDTH/4) * y) + (x / 4) + pageOff] = color;
+	VGA[(unsigned)((page->width/4) * y) + (x / 4) + pageOff] = color;
 
 }
 
@@ -968,7 +995,7 @@ byte modexgetPixel(page_t *page, int x, int y)
 	outpw(GC_INDEX, 0x04);
 	outpw(GC_INDEX+1, x & 3);
 
-	return VGA[(unsigned)((SCREEN_WIDTH/4) * y) + (x / 4) + pageOff];
+	return VGA[(unsigned)((page->width/4) * y) + (x / 4) + pageOff];
 
 }