Beginnings of the code that should allow DOS programs to set their

dlls/winedos/int10.c

@@ -562,7 +562,9 @@ void WINAPI DOSVM_Int10Handler( CONTEXT86 *context )
     case 0x10: 
         switch AL_reg(context) {
         case 0x00: /* SET SINGLE PALETTE REGISTER */
-            FIXME("Set Single Palette Register - Not Supported\n");
+            FIXME("Set Single Palette Register - Not tested\n");
+		/* BH is the value  BL is the register */
+		VGA_SetColor16((int)BL_reg(context),(int)BH_reg(context));
             break;
         case 0x01: /* SET BORDER (OVERSCAN) */
             /* Text terminals have no overscan */
@@ -570,12 +572,16 @@ void WINAPI DOSVM_Int10Handler( CONTEXT86 *context )
             break;
         case 0x02: /* SET ALL PALETTE REGISTERS */
             FIXME("Set all palette registers - Not Supported\n");
+		/* DX:ES points to a 17 byte table of colors */
+		/* No return data listed */
+		/* I'll have to update my table and the default palette */
             break;
         case 0x03: /* TOGGLE INTENSITY/BLINKING BIT */
             FIXME("Toggle Intensity/Blinking Bit - Not Supported\n");
             break;
         case 0x07: /* GET INDIVIDUAL PALETTE REGISTER */
             FIXME("Get Individual Palette Register - Not Supported\n");
+		/* BL is register to read [ 0-15 ] BH is return value */
             break;
         case 0x08: /* READ OVERSCAN (BORDER COLOR) REGISTER */
             FIXME(

dlls/winedos/vga.c

@@ -46,6 +46,33 @@ static int vga_depth;
 typedef HRESULT (WINAPI *DirectDrawCreateProc)(LPGUID,LPDIRECTDRAW *,LPUNKNOWN);
 static DirectDrawCreateProc pDirectDrawCreate;
 
+/*
+ * For simplicity, I'm creating a second palette.
+ * 16 color accesses will use these pointers and insert
+ * entries from the 64-color palette into the default
+ * palette.   --Robert 'Admiral' Coeyman
+ */
+
+static char vga_16_palette[17]={
+  0x00,  /* 0 - Black         */
+  0x01,  /* 1 - Blue          */
+  0x02,  /* 2 - Green         */
+  0x03,  /* 3 - Cyan          */
+  0x04,  /* 4 - Red           */
+  0x05,  /* 5 - Magenta       */
+  0x14,  /* 6 - Brown         */
+  0x07,  /* 7 - Light gray    */
+  0x38,  /* 8 - Dark gray     */
+  0x39,  /* 9 - Light blue    */
+  0x3a,  /* A - Light green   */
+  0x3b,  /* B - Light cyan    */
+  0x3c,  /* C - Light red     */
+  0x3d,  /* D - Light magenta */
+  0x3e,  /* E - Yellow        */
+  0x3f,  /* F - White         */
+  0x00   /* Border Color      */
+};
+
 static PALETTEENTRY vga_def_palette[256]={
 /* red  green  blue */
   {0x00, 0x00, 0x00}, /* 0 - Black */
@@ -67,6 +94,80 @@ static PALETTEENTRY vga_def_palette[256]={
   {0,0,0} /* FIXME: a series of continuous rainbow hues should follow */
 };
 
+/* 
+ *   This palette is the dos default, converted from 18 bit color to 24. 
+ *      It contains only 64 entries of colors--all others are zeros.
+ *          --Robert 'Admiral' Coeyman
+ */
+static PALETTEENTRY vga_def64_palette[256]={
+/* red  green  blue */
+  {0x00, 0x00, 0x00}, /* 0x00      Black      */
+  {0x00, 0x00, 0xaa}, /* 0x01      Blue       */
+  {0x00, 0xaa, 0x00}, /* 0x02      Green      */
+  {0x00, 0xaa, 0xaa}, /* 0x03      Cyan       */
+  {0xaa, 0x00, 0x00}, /* 0x04      Red        */
+  {0xaa, 0x00, 0xaa}, /* 0x05      Magenta    */
+  {0xaa, 0xaa, 0x00}, /* 0x06      */
+  {0xaa, 0xaa, 0xaa}, /* 0x07      Light Gray */
+  {0x00, 0x00, 0x55}, /* 0x08      */
+  {0x00, 0x00, 0xff}, /* 0x09      */
+  {0x00, 0xaa, 0x55}, /* 0x0a      */
+  {0x00, 0xaa, 0xff}, /* 0x0b      */
+  {0xaa, 0x00, 0x55}, /* 0x0c      */
+  {0xaa, 0x00, 0xff}, /* 0x0d      */
+  {0xaa, 0xaa, 0x55}, /* 0x0e      */
+  {0xaa, 0xaa, 0xff}, /* 0x0f      */
+  {0x00, 0x55, 0x00}, /* 0x10      */
+  {0x00, 0x55, 0xaa}, /* 0x11      */
+  {0x00, 0xff, 0x00}, /* 0x12      */
+  {0x00, 0xff, 0xaa}, /* 0x13      */
+  {0xaa, 0x55, 0x00}, /* 0x14      Brown      */
+  {0xaa, 0x55, 0xaa}, /* 0x15      */
+  {0xaa, 0xff, 0x00}, /* 0x16      */
+  {0xaa, 0xff, 0xaa}, /* 0x17      */
+  {0x00, 0x55, 0x55}, /* 0x18      */
+  {0x00, 0x55, 0xff}, /* 0x19      */
+  {0x00, 0xff, 0x55}, /* 0x1a      */
+  {0x00, 0xff, 0xff}, /* 0x1b      */
+  {0xaa, 0x55, 0x55}, /* 0x1c      */
+  {0xaa, 0x55, 0xff}, /* 0x1d      */
+  {0xaa, 0xff, 0x55}, /* 0x1e      */
+  {0xaa, 0xff, 0xff}, /* 0x1f      */
+  {0x55, 0x00, 0x00}, /* 0x20      */
+  {0x55, 0x00, 0xaa}, /* 0x21      */
+  {0x55, 0xaa, 0x00}, /* 0x22      */
+  {0x55, 0xaa, 0xaa}, /* 0x23      */
+  {0xff, 0x00, 0x00}, /* 0x24      */
+  {0xff, 0x00, 0xaa}, /* 0x25      */
+  {0xff, 0xaa, 0x00}, /* 0x26      */
+  {0xff, 0xaa, 0xaa}, /* 0x27      */
+  {0x55, 0x00, 0x55}, /* 0x28      */
+  {0x55, 0x00, 0xff}, /* 0x29      */
+  {0x55, 0xaa, 0x55}, /* 0x2a      */
+  {0x55, 0xaa, 0xff}, /* 0x2b      */
+  {0xff, 0x00, 0x55}, /* 0x2c      */
+  {0xff, 0x00, 0xff}, /* 0x2d      */
+  {0xff, 0xaa, 0x55}, /* 0x2e      */
+  {0xff, 0xaa, 0xff}, /* 0x2f      */
+  {0x55, 0x55, 0x00}, /* 0x30      */
+  {0x55, 0x55, 0xaa}, /* 0x31      */
+  {0x55, 0xff, 0x00}, /* 0x32      */
+  {0x55, 0xff, 0xaa}, /* 0x33      */
+  {0xff, 0x55, 0x00}, /* 0x34      */
+  {0xff, 0x55, 0xaa}, /* 0x35      */
+  {0xff, 0xff, 0x00}, /* 0x36      */
+  {0xff, 0xff, 0xaa}, /* 0x37      */
+  {0x55, 0x55, 0x55}, /* 0x38      Dark Gray     */
+  {0x55, 0x55, 0xff}, /* 0x39      Light Blue    */
+  {0x55, 0xff, 0x55}, /* 0x3a      Light Green   */
+  {0x55, 0xff, 0xff}, /* 0x3b      Light Cyan    */
+  {0xff, 0x55, 0x55}, /* 0x3c      Light Red     */
+  {0xff, 0x55, 0xff}, /* 0x3d      Light Magenta */
+  {0xff, 0xff, 0x55}, /* 0x3e      Yellow        */
+  {0xff, 0xff, 0xff}, /* 0x3f      White         */
+  {0,0,0} /* The next 192 entries are all zeros  */
+};
+
 static void VGA_DeinstallTimer(void)
 {
     if (poll_timer) {
@@ -224,6 +325,17 @@ void VGA_SetPalette(PALETTEENTRY*pal,int start,int len)
     IDirectDrawPalette_SetEntries(lpddpal,0,start,len,pal);
 }
 
+/* set a single color in 16 color mode. */
+void VGA_SetColor16(int reg,int color)
+{
+	PALETTEENTRY *pal;
+
+    if (!lpddraw) return;
+	pal= &vga_def64_palette[color];
+        IDirectDrawPalette_SetEntries(lpddpal,0,reg,1,pal);
+	vga_16_palette[reg]=(char)color;
+}
+
 void VGA_SetQuadPalette(RGBQUAD*color,int start,int len)
 {
     PALETTEENTRY pal[256];

dlls/winedos/vga.h

@@ -29,6 +29,7 @@ int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth);
 int VGA_GetMode(unsigned*Height,unsigned*Width,unsigned*Depth);
 void VGA_Exit(void);
 void VGA_SetPalette(PALETTEENTRY*pal,int start,int len);
+void VGA_SetColor16(int reg,int color);
 void VGA_SetQuadPalette(RGBQUAD*color,int start,int len);
 LPSTR VGA_Lock(unsigned*Pitch,unsigned*Height,unsigned*Width,unsigned*Depth);
 void VGA_Unlock(void);