/*
* COPYRIGHT: GPL - See COPYING in the top level directory
* PROJECT: ReactOS Virtual DOS Machine
- * FILE: vidbios.c
+ * FILE: subsystems/mvdm/ntvdm/bios/vidbios.c
* PURPOSE: VDM 32-bit Video BIOS Support Library
* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
* Hermes Belusca-Maito (hermes.belusca@sfr.fr)
/* INCLUDES *******************************************************************/
+#include "ntvdm.h"
+
#define NDEBUG
+#include <debug.h>
/* BIOS Version number and Copyright */
#include <reactos/buildno.h>
#include <reactos/version.h>
-#include "ntvdm.h"
#include "emulator.h"
#include "cpu/cpu.h"
#include "cpu/bop.h"
#include "io.h"
#include "hardware/video/svga.h"
+/**/
+#include "../console/video.h"
+/**/
/* MACROS *********************************************************************/
{
PVGA_REGISTERS VgaRegisters;
WORD PageSize;
+ WORD CharacterWidth;
WORD CharacterHeight;
// PCOLORREF Palette;
} VGA_MODE, *PVGA_MODE;
static CONST VGA_MODE VideoModes[BIOS_MAX_VIDEO_MODE + 1] =
{
- {&VideoMode_40x25_text, 0x0800, 16}, /* Mode 00h - 16 color (mono) */
- {&VideoMode_40x25_text, 0x0800, 16}, /* Mode 01h - 16 color */
- {&VideoMode_80x25_text, 0x1000, 16}, /* Mode 02h - 16 color (mono) */
- {&VideoMode_80x25_text, 0x1000, 16}, /* Mode 03h - 16 color */
- {&VideoMode_320x200_4color, 0x4000, 8}, /* Mode 04h - CGA 4 color */
- {&VideoMode_320x200_4color, 0x4000, 8}, /* Mode 05h - CGA same (m) (uses 3rd CGA palette) */
- {&VideoMode_640x200_2color, 0x4000, 8}, /* Mode 06h - CGA 640*200 2 color */
- {NULL, 0x1000, 0}, /* Mode 07h - MDA monochrome text 80*25 */
- {NULL, 0x0000, 0}, /* Mode 08h - PCjr */
- {NULL, 0x0000, 0}, /* Mode 09h - PCjr */
- {NULL, 0x0000, 0}, /* Mode 0Ah - PCjr */
- {NULL, 0x0000, 0}, /* Mode 0Bh - Reserved */
- {NULL, 0x0000, 0}, /* Mode 0Ch - Reserved */
- {&VideoMode_320x200_16color, 0x2000, 8}, /* Mode 0Dh - EGA 320*200 16 color */
- {&VideoMode_640x200_16color, 0x4000, 8}, /* Mode 0Eh - EGA 640*200 16 color */
- {NULL, 0x8000, 0}, /* Mode 0Fh - EGA 640*350 mono */
- {&VideoMode_640x350_16color, 0x8000, 14}, /* Mode 10h - EGA 640*350 HiRes 16 color */
- {&VideoMode_640x480_2color, 0xA000, 16}, /* Mode 11h - VGA 640*480 mono */
- {&VideoMode_640x480_16color, 0xA000, 16}, /* Mode 12h - VGA */
- {&VideoMode_320x200_256color, 0x2000, 8}, /* Mode 13h - VGA */
+ {&VideoMode_40x25_text, 0x0800, 9, 16}, /* Mode 00h - 16 color (mono) */
+ {&VideoMode_40x25_text, 0x0800, 9, 16}, /* Mode 01h - 16 color */
+ {&VideoMode_80x25_text, 0x1000, 9, 16}, /* Mode 02h - 16 color (mono) */
+ {&VideoMode_80x25_text, 0x1000, 9, 16}, /* Mode 03h - 16 color */
+ {&VideoMode_320x200_4color, 0x4000, 8, 8}, /* Mode 04h - CGA 4 color */
+ {&VideoMode_320x200_4color, 0x4000, 8, 8}, /* Mode 05h - CGA same (m) (uses 3rd CGA palette) */
+ {&VideoMode_640x200_2color, 0x4000, 8, 8}, /* Mode 06h - CGA 640*200 2 color */
+ {NULL, 0x1000, 1, 1}, /* Mode 07h - MDA monochrome text 80*25 */
+ {NULL, 0x0000, 1, 1}, /* Mode 08h - PCjr */
+ {NULL, 0x0000, 1, 1}, /* Mode 09h - PCjr */
+ {NULL, 0x0000, 1, 1}, /* Mode 0Ah - PCjr */
+ {NULL, 0x0000, 1, 1}, /* Mode 0Bh - Reserved */
+ {NULL, 0x0000, 1, 1}, /* Mode 0Ch - Reserved */
+ {&VideoMode_320x200_16color, 0x2000, 8, 8}, /* Mode 0Dh - EGA 320*200 16 color */
+ {&VideoMode_640x200_16color, 0x4000, 8, 8}, /* Mode 0Eh - EGA 640*200 16 color */
+ {NULL, 0x8000, 1, 1}, /* Mode 0Fh - EGA 640*350 mono */
+ {&VideoMode_640x350_16color, 0x8000, 8, 14}, /* Mode 10h - EGA 640*350 HiRes 16 color */
+ {&VideoMode_640x480_2color, 0xA000, 8, 16}, /* Mode 11h - VGA 640*480 mono */
+ {&VideoMode_640x480_16color, 0xA000, 8, 16}, /* Mode 12h - VGA */
+ {&VideoMode_320x200_256color, 0x2000, 8, 8}, /* Mode 13h - VGA */
};
#define IS_TEXT_MODE(ModeNumber) \
WORD WindowWidth, WindowHeight;
+ /* TODO: This function doesn't work in non-alphanumeric modes yet */
+ if (Bda->VideoMode > 3)
+ {
+ DPRINT1("VidBiosScrollWindow: not implemented for mode 0%Xh\n", Bda->VideoMode);
+ return FALSE;
+ }
+
/* Fixup the rectangle if needed */
Rectangle.Left = min(max(Rectangle.Left , 0), Bda->ScreenColumns - 1);
Rectangle.Right = min(max(Rectangle.Right , 0), Bda->ScreenColumns - 1);
/* Move text lines up */
for (i = Rectangle.Top + Amount; i <= Rectangle.Bottom; i++)
{
- EmulatorWriteMemory(&EmulatorContext,
- VideoAddress + ((i - Amount) * Bda->ScreenColumns + Rectangle.Left) * sizeof(WORD),
- REAL_TO_PHYS(VideoAddress + ( i * Bda->ScreenColumns + Rectangle.Left) * sizeof(WORD)),
- (Rectangle.Right - Rectangle.Left + 1) * sizeof(WORD));
+ EmulatorCopyMemory(&EmulatorContext,
+ VideoAddress + ((i - Amount) * Bda->ScreenColumns + Rectangle.Left) * sizeof(WORD),
+ VideoAddress + ( i * Bda->ScreenColumns + Rectangle.Left) * sizeof(WORD),
+ (Rectangle.Right - Rectangle.Left + 1) * sizeof(WORD));
}
/* Fill the bottom of the rectangle */
/* Move text lines down */
for (i = Rectangle.Bottom - Amount; i >= Rectangle.Top; i--)
{
- EmulatorWriteMemory(&EmulatorContext,
- VideoAddress + ((i + Amount) * Bda->ScreenColumns + Rectangle.Left) * sizeof(WORD),
- REAL_TO_PHYS(VideoAddress + ( i * Bda->ScreenColumns + Rectangle.Left) * sizeof(WORD)),
- (Rectangle.Right - Rectangle.Left + 1) * sizeof(WORD));
+ EmulatorCopyMemory(&EmulatorContext,
+ VideoAddress + ((i + Amount) * Bda->ScreenColumns + Rectangle.Left) * sizeof(WORD),
+ VideoAddress + ( i * Bda->ScreenColumns + Rectangle.Left) * sizeof(WORD),
+ (Rectangle.Right - Rectangle.Left + 1) * sizeof(WORD));
}
/* Fill the top of the rectangle */
/* Move text lines left */
for (i = Rectangle.Top; i <= Rectangle.Bottom; i++)
{
- EmulatorWriteMemory(&EmulatorContext,
- VideoAddress + (i * Bda->ScreenColumns + Rectangle.Left ) * sizeof(WORD),
- REAL_TO_PHYS(VideoAddress + (i * Bda->ScreenColumns + Rectangle.Left + Amount) * sizeof(WORD)),
- (Rectangle.Right - Rectangle.Left - Amount + 1) * sizeof(WORD));
+ EmulatorCopyMemory(&EmulatorContext,
+ VideoAddress + (i * Bda->ScreenColumns + Rectangle.Left ) * sizeof(WORD),
+ VideoAddress + (i * Bda->ScreenColumns + Rectangle.Left + Amount) * sizeof(WORD),
+ (Rectangle.Right - Rectangle.Left - Amount + 1) * sizeof(WORD));
}
/* Fill the right of the rectangle */
case SCROLL_RIGHT:
{
+ INT Right;
+
/* Move text lines right */
for (i = Rectangle.Top; i <= Rectangle.Bottom; i++)
{
- EmulatorWriteMemory(&EmulatorContext,
- VideoAddress + (i * Bda->ScreenColumns + Rectangle.Left + Amount) * sizeof(WORD),
- REAL_TO_PHYS(VideoAddress + (i * Bda->ScreenColumns + Rectangle.Left ) * sizeof(WORD)),
- (Rectangle.Right - Rectangle.Left - Amount + 1) * sizeof(WORD));
+ EmulatorCopyMemory(&EmulatorContext,
+ VideoAddress + (i * Bda->ScreenColumns + Rectangle.Left + Amount) * sizeof(WORD),
+ VideoAddress + (i * Bda->ScreenColumns + Rectangle.Left ) * sizeof(WORD),
+ (Rectangle.Right - Rectangle.Left - Amount + 1) * sizeof(WORD));
}
/* Fill the left of the rectangle */
+ Right = Rectangle.Left + Amount - 1;
for (i = Rectangle.Top; i <= Rectangle.Bottom; i++)
{
- INT Right = Rectangle.Left + Amount - 1;
for (j = Rectangle.Left; j <= Right; j++)
{
EmulatorWriteMemory(&EmulatorContext,
IOWriteB(VGA_CRTC_DATA , LOBYTE(CursorStartEnd));
}
-VOID VidBiosSyncCursorPosition(VOID)
+static VOID VidBiosSyncCursorPosition(VOID)
{
BYTE Row, Column;
BYTE Low, High;
- SHORT ScreenColumns = VgaGetDisplayResolution().X;
+ SHORT ScreenColumns = Bda->ScreenColumns;
WORD Offset;
/* Get the cursor position */
/* Update the screen size */
Resolution = VgaGetDisplayResolution();
+ // This could be simplified if the VGA helper always returned the resolution
+ // in number of pixels, instead of in number of cells for text-modes only...
+ if (!IS_TEXT_MODE(ModeNumber))
+ {
+ Resolution.X /= VideoModes[ModeNumber].CharacterWidth ;
+ Resolution.Y /= VideoModes[ModeNumber].CharacterHeight;
+ }
Bda->ScreenColumns = Resolution.X;
Bda->ScreenRows = Resolution.Y - 1;
- /* Adjust the number of columns for graphics modes */
- if (!IS_TEXT_MODE(ModeNumber)) Bda->ScreenColumns >>= 3;
-
/* Update the current font */
Bda->CharacterHeight = VideoModes[ModeNumber].CharacterHeight;
switch (Bda->CharacterHeight)
* but we update the cursor position on the VGA side).
*/
VidBiosGetCursorPosition(&Row, &Column, PageNumber);
- VidBiosSetCursorPosition(Row, Column, PageNumber);
+ VidBiosSetCursorPosition( Row, Column, PageNumber);
return TRUE;
}
WORD i, j;
PUCHAR Font = (PUCHAR)FAR_POINTER(((PULONG)BaseAddress)[0x43]);
PUCHAR Glyph = &Font[LOBYTE(CharData) * Bda->CharacterHeight];
- BYTE PixelBuffer[8];
+ BYTE PixelBuffer[8]; // 8 == CharacterWidth
for (i = 0; i < Bda->CharacterHeight; i++)
{
- for (j = 0; j < 8; j++)
+ for (j = 0; j < ARRAYSIZE(PixelBuffer); j++)
{
PixelBuffer[j] = (Glyph[i] & (1 << (7 - j))) ? HIBYTE(CharData) : 0;
}
EmulatorWriteMemory(&EmulatorContext,
TO_LINEAR(GRAPHICS_VIDEO_SEG,
((Row * Bda->CharacterHeight + i)
- * Bda->ScreenColumns + Column) << 3),
+ * Bda->ScreenColumns + Column) * 8),
(LPVOID)PixelBuffer,
sizeof(PixelBuffer));
}
Attached = TRUE;
}
+ /* Refresh display */
VgaRefreshDisplay();
VidBiosSyncCursorPosition();
}
VOID VidBiosDetachFromConsole(VOID)
{
- /* Perform another screen refresh */
+ if (!Attached) return;
+
+ /* Refresh display */
VgaRefreshDisplay();
/* Detach from the console */
- VgaDetachFromConsole(FALSE);
+ VgaDetachFromConsole();
Attached = FALSE;
}
projects / reactos.git / blobdiff