[hbelusca] 64235: [NTVDM] Implement INT 10h, AH=0Bh function 01 (Set Palette) (for CGA modes), and half-plement INT 10h, AH=0Bh function 00 (Set Background/border color), adapted from DosBox. The c...
22 Sep
2014
22 Sep
'14
11:34 p.m.
Author: hbelusca
Date: Mon Sep 22 23:34:41 2014
New Revision: 64235
URL: http://svn.reactos.org/svn/reactos?rev=64235&view=rev
Log:
[NTVDM]
Implement INT 10h, AH=0Bh function 01 (Set Palette) (for CGA modes), and half-plement INT
10h, AH=0Bh function 00 (Set Background/border color), adapted from DosBox.
The code needs a bit of cleaning.
Needed for a certain Pacman game :)
CORE-8436 #resolve #comment Fixed ;)
Modified:
trunk/reactos/subsystems/ntvdm/bios/vidbios.c
Modified: trunk/reactos/subsystems/ntvdm/bios/vidbios.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/ntvdm/bios/vidb…
==============================================================================
--- trunk/reactos/subsystems/ntvdm/bios/vidbios.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/ntvdm/bios/vidbios.c [iso-8859-1] Mon Sep 22 23:34:41 2014
@@ -264,7 +264,7 @@
&VideoMode_80x25_text, /* Mode 02h */ // 16 color (mono)
&VideoMode_80x25_text, /* Mode 03h */ // 16 color
&VideoMode_320x200_4color, /* Mode 04h */ // CGA 4 color
- &VideoMode_320x200_4color, /* Mode 05h */ // CGA same (m)
+ &VideoMode_320x200_4color, /* Mode 05h */ // CGA same (m) (uses 3rd CGA
palette)
&VideoMode_640x200_2color, /* Mode 06h */ // CGA 640*200 2 color
NULL, /* Mode 07h */ // MDA monochrome text 80*25
NULL, /* Mode 08h */ // PCjr
@@ -369,6 +369,8 @@
RGB(0xFF, 0xFF, 0xFF), RGB(0xFF, 0xFF, 0xFF), RGB(0xFF, 0xFF, 0xFF), RGB(0xFF, 0xFF,
0xFF)
};
+#if 0
+
// Unused at the moment
static CONST COLORREF CgaPalette[16] =
{
@@ -378,28 +380,69 @@
RGB(0xFF, 0x55, 0x55), RGB(0xFF, 0x55, 0xFF), RGB(0xFF, 0xFF, 0x55), RGB(0xFF, 0xFF,
0xFF)
};
-// Unused at the moment
+/* CGA palette 1 */
+static CONST BYTE CgaPalette1[] =
+{
+ 0x00, /* 0 - Black */
+ 0x03, /* 1 - Cyan */
+ 0x05, /* 2- Magenta */
+ 0x07, /* 3 - White */
+}
+
+/* CGA palette 1 bright */
+static CONST BYTE CgaPalette1i[] =
+{
+ 0x00, /* 0 - Black */
+ 0x13, /* 1 - Light cyan */
+ 0x15, /* 2 - Light magenta */
+ 0x17, /* 3 - Bright White */
+};
+
+/* CGA palette 2 */
+static CONST BYTE CgaPalette2[] =
+{
+ 0x00, /* 0 - Black */
+ 0x02, /* 1 - Green */
+ 0x04, /* 2 - Red */
+ 0x06, /* 3 - Brown */
+};
+
+/* CGA palette 2 bright */
+static CONST BYTE CgaPalette2i[] =
+{
+ 0x00, /* 0 - Black */
+ 0x12, /* 1 - Light green */
+ 0x14, /* 2 - Light red */
+ 0x16, /* 3 - Yellow */
+};
+
+// Unused at the moment; same palette as EgaPalette__16Colors
static CONST COLORREF CgaPalette2[VGA_MAX_COLORS / 4] =
{
RGB(0x00, 0x00, 0x00), RGB(0x00, 0x00, 0xAA), RGB(0x00, 0xAA, 0x00), RGB(0x00, 0xAA,
0xAA),
RGB(0xAA, 0x00, 0x00), RGB(0xAA, 0x00, 0xAA), RGB(0xAA, 0x55, 0x00), RGB(0xAA, 0xAA,
0xAA),
RGB(0x00, 0x00, 0x00), RGB(0x00, 0x00, 0xAA), RGB(0x00, 0xAA, 0x00), RGB(0x00, 0xAA,
0xAA),
RGB(0xAA, 0x00, 0x00), RGB(0xAA, 0x00, 0xAA), RGB(0xAA, 0x55, 0x00), RGB(0xAA, 0xAA,
0xAA),
+
RGB(0x55, 0x55, 0x55), RGB(0x55, 0x55, 0xFF), RGB(0x55, 0xFF, 0x55), RGB(0x55, 0xFF,
0xFF),
RGB(0xFF, 0x55, 0x55), RGB(0xFF, 0x55, 0xFF), RGB(0xFF, 0xFF, 0x55), RGB(0xFF, 0xFF,
0xFF),
RGB(0x55, 0x55, 0x55), RGB(0x55, 0x55, 0xFF), RGB(0x55, 0xFF, 0x55), RGB(0x55, 0xFF,
0xFF),
RGB(0xFF, 0x55, 0x55), RGB(0xFF, 0x55, 0xFF), RGB(0xFF, 0xFF, 0x55), RGB(0xFF, 0xFF,
0xFF),
+
RGB(0x00, 0x00, 0x00), RGB(0x00, 0x00, 0xAA), RGB(0x00, 0xAA, 0x00), RGB(0x00, 0xAA,
0xAA),
RGB(0xAA, 0x00, 0x00), RGB(0xAA, 0x00, 0xAA), RGB(0xAA, 0x55, 0x00), RGB(0xAA, 0xAA,
0xAA),
RGB(0x00, 0x00, 0x00), RGB(0x00, 0x00, 0xAA), RGB(0x00, 0xAA, 0x00), RGB(0x00, 0xAA,
0xAA),
RGB(0xAA, 0x00, 0x00), RGB(0xAA, 0x00, 0xAA), RGB(0xAA, 0x55, 0x00), RGB(0xAA, 0xAA,
0xAA),
+
RGB(0x55, 0x55, 0x55), RGB(0x55, 0x55, 0xFF), RGB(0x55, 0xFF, 0x55), RGB(0x55, 0xFF,
0xFF),
RGB(0xFF, 0x55, 0x55), RGB(0xFF, 0x55, 0xFF), RGB(0xFF, 0xFF, 0x55), RGB(0xFF, 0xFF,
0xFF),
RGB(0x55, 0x55, 0x55), RGB(0x55, 0x55, 0xFF), RGB(0x55, 0xFF, 0x55), RGB(0x55, 0xFF,
0xFF),
RGB(0xFF, 0x55, 0x55), RGB(0xFF, 0x55, 0xFF), RGB(0xFF, 0xFF, 0x55), RGB(0xFF, 0xFF,
0xFF)
};
-static CONST COLORREF EgaPalette___16ColorFixed_DOSBox[VGA_MAX_COLORS / 4] =
+#endif
+
+static CONST COLORREF EgaPalette__16Colors[VGA_MAX_COLORS / 4] =
{
RGB(0x00, 0x00, 0x00), RGB(0x00, 0x00, 0xAA), RGB(0x00, 0xAA, 0x00), RGB(0x00, 0xAA,
0xAA),
RGB(0xAA, 0x00, 0x00), RGB(0xAA, 0x00, 0xAA), RGB(0xAA, 0x55, 0x00), RGB(0xAA, 0xAA,
0xAA),
@@ -740,6 +783,16 @@
return TRUE;
}
+static __inline VOID VgaSetSinglePaletteRegister(BYTE Index, BYTE Value)
+{
+ /* Write the index */
+ IOReadB(VGA_INSTAT1_READ); // Put the AC register into index state
+ IOWriteB(VGA_AC_INDEX, Index);
+
+ /* Write the data */
+ IOWriteB(VGA_AC_WRITE, Value);
+}
+
static BOOLEAN VgaSetRegisters(PVGA_REGISTERS Registers)
{
INT i;
@@ -803,9 +856,7 @@
// DbgPrint("\n");
for (i = 0; i < VGA_AC_MAX_REG; i++)
{
- IOReadB(VGA_INSTAT1_READ); // Put the AC register into index state
- IOWriteB(VGA_AC_INDEX, i);
- IOWriteB(VGA_AC_WRITE, Registers->Attribute[i]);
+ VgaSetSinglePaletteRegister(i, Registers->Attribute[i]);
// DbgPrint("Registers->Attribute[%d] = %d\n", i,
Registers->Attribute[i]);
}
// DbgPrint("\n");
@@ -864,17 +915,28 @@
Palette = VgaPalette;
Size = sizeof(VgaPalette)/sizeof(VgaPalette[0]);
}
- else if (ModeNumber == 0x10)
+ else if (ModeNumber == 0x10) // || (ModeNumber == 0x0D) || (ModeNumber == 0x0E)
{
/* EGA HiRes mode */
Palette = EgaPalette__HiRes;
Size = sizeof(EgaPalette__HiRes)/sizeof(EgaPalette__HiRes[0]);
}
+#if 0
+ else if ((ModeNumber == 0x04) || (ModeNumber == 0x05))
+ {
+ /*
+ * CGA modes; this palette contains both normal and
+ * bright versions of CGA palettes 0 and 1
+ */
+ Palette = CgaPalette2;
+ Size = sizeof(CgaPalette2)/sizeof(CgaPalette2[0]);
+ }
+#endif
else // if ((ModeNumber == 0x0D) || (ModeNumber == 0x0E))
{
/* EGA modes */
- Palette = EgaPalette___16ColorFixed_DOSBox;
- Size =
sizeof(EgaPalette___16ColorFixed_DOSBox)/sizeof(EgaPalette___16ColorFixed_DOSBox[0]);
+ Palette = EgaPalette__16Colors;
+ Size = sizeof(EgaPalette__16Colors)/sizeof(EgaPalette__16Colors[0]);
}
VgaSetPalette(Palette, Size);
@@ -1271,6 +1333,87 @@
break;
}
+ /* Set Video Colors */
+ case 0x0B:
+ {
+ if (Bda->VideoMode < 4 || Bda->VideoMode > 6)
+ {
+ DPRINT1("BIOS Function INT 10h, AH = 0Bh, BH = 0x%02X is unsupported
for non-CGA modes\n",
+ getAH(), getBH());
+ break;
+ }
+
+ switch (getBH())
+ {
+ case 0x00: /* Set Background/Border Color */
+ {
+#ifdef DOSBOX
+ BYTE Index = getBL();
+ BYTE CrtColorPaletteMask = Bda->CrtColorPaletteMask;
+ CrtColorPaletteMask = (CrtColorPaletteMask & 0xE0) | (Index &
0x1F);
+ Bda->CrtColorPaletteMask = CrtColorPaletteMask;
+
+ Index = ((Index << 1) & 0x10) | (Index & 0x7);
+
+ /* Always set the overscan color */
+ VgaSetSinglePaletteRegister(VGA_AC_OVERSCAN_REG, Index);
+
+ /* Don't set any extra colors when in text mode */
+ if (Bda->VideoMode <= 3) break;
+
+ VgaSetSinglePaletteRegister(0x00, Index);
+
+ Index = (CrtColorPaletteMask & 0x10) | 0x02 |
((CrtColorPaletteMask & 0x20) >> 5);
+
+ VgaSetSinglePaletteRegister(0x01, Index);
+ Index += 2;
+ VgaSetSinglePaletteRegister(0x02, Index);
+ Index += 2;
+ VgaSetSinglePaletteRegister(0x03, Index);
+#else
+ /* Background/Border Color is modifiable via the first index */
+ VgaSetSinglePaletteRegister(0x00, getBL());
+#endif
+
+ /* Enable screen and disable palette access */
+ IOReadB(VGA_INSTAT1_READ); // Put the AC register into index state
+ IOWriteB(VGA_AC_INDEX, 0x20);
+ break;
+ }
+
+ case 0x01: /* Set Palette */
+ {
+ BYTE Index = getBL();
+ BYTE CrtColorPaletteMask = Bda->CrtColorPaletteMask;
+ CrtColorPaletteMask = (CrtColorPaletteMask & 0xDF) | ((Index
& 1) ? 0x20 : 0x0);
+ Bda->CrtColorPaletteMask = CrtColorPaletteMask;
+
+ /* Don't set any extra colors when in text mode */
+ if (Bda->VideoMode <= 3) break;
+
+ Index = (CrtColorPaletteMask & 0x10) | 0x02 | Index;
+
+ VgaSetSinglePaletteRegister(0x01, Index);
+ Index += 2;
+ VgaSetSinglePaletteRegister(0x02, Index);
+ Index += 2;
+ VgaSetSinglePaletteRegister(0x03, Index);
+
+ /* Enable screen and disable palette access */
+ IOReadB(VGA_INSTAT1_READ); // Put the AC register into index state
+ IOWriteB(VGA_AC_INDEX, 0x20);
+ break;
+ }
+
+ default:
+ DPRINT1("BIOS Function INT 10h, AH = 0Bh, BH = 0x%02X NOT
IMPLEMENTED\n",
+ getAH(), getBH());
+ break;
+ }
+
+ break;
+ }
+
/* Teletype Output */
case 0x0E:
{
@@ -1294,12 +1437,7 @@
/* Set Single Palette Register */
case 0x00:
{
- /* Write the index */
- IOReadB(VGA_INSTAT1_READ); // Put the AC register into index state
- IOWriteB(VGA_AC_INDEX, getBL());
-
- /* Write the data */
- IOWriteB(VGA_AC_WRITE, getBH());
+ VgaSetSinglePaletteRegister(getBL(), getBH());
/* Enable screen and disable palette access */
IOReadB(VGA_INSTAT1_READ); // Put the AC register into index state
@@ -1310,12 +1448,7 @@
/* Set Overscan Color */
case 0x01:
{
- /* Write the index */
- IOReadB(VGA_INSTAT1_READ); // Put the AC register into index state
- IOWriteB(VGA_AC_INDEX, VGA_AC_OVERSCAN_REG);
-
- /* Write the data */
- IOWriteB(VGA_AC_WRITE, getBH());
+ VgaSetSinglePaletteRegister(VGA_AC_OVERSCAN_REG, getBH());
/* Enable screen and disable palette access */
IOReadB(VGA_INSTAT1_READ); // Put the AC register into index state
@@ -1332,15 +1465,11 @@
/* Set the palette registers */
for (i = 0; i <= VGA_AC_PAL_F_REG; i++)
{
- /* Write the index */
- IOReadB(VGA_INSTAT1_READ); // Put the AC register into index
state
- IOWriteB(VGA_AC_INDEX, i);
-
- /* Write the data */
- IOWriteB(VGA_AC_WRITE, Buffer[i]);
+ VgaSetSinglePaletteRegister(i, Buffer[i]);
}
/* Set the overscan register */
+ // VgaSetSinglePaletteRegister(VGA_AC_OVERSCAN_REG,
Buffer[VGA_AC_PAL_F_REG + 1]);
IOWriteB(VGA_AC_INDEX, VGA_AC_OVERSCAN_REG);
IOWriteB(VGA_AC_WRITE, Buffer[VGA_AC_PAL_F_REG + 1]);
@@ -1509,7 +1638,7 @@
/* Display combination code */
case 0x1A:
{
- switch(getAL())
+ switch (getAL())
{
case 0x00: /* Get Display combiantion code */
setAX(MAKEWORD(0x1A, 0x1A));
@@ -1526,8 +1655,8 @@
default:
{
- DPRINT1("BIOS Function INT 10h, AH = 0x%02X NOT IMPLEMENTED\n",
- getAH());
+ DPRINT1("BIOS Function INT 10h, AH = 0x%02X, AL = 0x%02X, BH = 0x%02X
NOT IMPLEMENTED\n",
+ getAH(), getAL(), getBH());
}
}
}
@@ -1573,8 +1702,8 @@
((PULONG)BaseAddress)[0x44] = (ULONG)NULL;
/* Initialize the VGA BDA data */
- Bda->VGAOptions = 0x30; /* 256 KB Video RAM */
- Bda->VGASwitches = 0x09; /* High-resolution */
+ Bda->VGAOptions = 0x30; /* 256 KB Video RAM */
+ Bda->VGASwitches = 0x09; /* High-resolution */
//
// FIXME: At the moment we always set a VGA mode. In the future,
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