ULONG_PTR VgaRegisterBase = 0;
ULONG_PTR VgaBase = 0;
-static BOOLEAN ClearRow = FALSE;
/* PRIVATE FUNCTIONS *********************************************************/
static VOID
NTAPI
-ReadWriteMode(IN UCHAR Mode)
+ReadWriteMode(
+ _In_ UCHAR Mode)
{
UCHAR Value;
WRITE_REGISTER_UCHAR((_PixelPtr), (UCHAR)(_TextColor)); \
} while (0);
-#ifdef CHAR_GEN_UPSIDE_DOWN
-# define GetFontPtr(_Char) &FontData[_Char * BOOTCHAR_HEIGHT] + BOOTCHAR_HEIGHT - 1;
-# define FONT_PTR_DELTA (-1)
-#else
-# define GetFontPtr(_Char) &FontData[_Char * BOOTCHAR_HEIGHT];
-# define FONT_PTR_DELTA (1)
-#endif
-
VOID
NTAPI
DisplayCharacter(
}
/* Check if the background color is transparent */
- if (BackColor >= 16)
+ if (BackColor >= BV_COLOR_NONE)
{
/* We are done */
return;
static VOID
NTAPI
-SetPaletteEntryRGB(IN ULONG Id,
- IN ULONG Rgb)
+SetPaletteEntryRGB(
+ _In_ ULONG Id,
+ _In_ RGBQUAD Rgb)
{
- PCHAR Colors = (PCHAR)&Rgb;
-
/* Set the palette index */
__outpb(VGA_BASE_IO_PORT + DAC_ADDRESS_WRITE_PORT, (UCHAR)Id);
/* Set RGB colors */
- __outpb(VGA_BASE_IO_PORT + DAC_DATA_REG_PORT, Colors[2] >> 2);
- __outpb(VGA_BASE_IO_PORT + DAC_DATA_REG_PORT, Colors[1] >> 2);
- __outpb(VGA_BASE_IO_PORT + DAC_DATA_REG_PORT, Colors[0] >> 2);
+ __outpb(VGA_BASE_IO_PORT + DAC_DATA_REG_PORT, GetRValue(Rgb) >> 2);
+ __outpb(VGA_BASE_IO_PORT + DAC_DATA_REG_PORT, GetGValue(Rgb) >> 2);
+ __outpb(VGA_BASE_IO_PORT + DAC_DATA_REG_PORT, GetBValue(Rgb) >> 2);
}
VOID
ULONG i;
PULONG Entry = Table;
- /* Loop every entry */
for (i = 0; i < Count; i++, Entry++)
{
- /* Set the entry */
SetPaletteEntryRGB(i, *Entry);
}
}
-static VOID
-NTAPI
-SetPaletteEntry(IN ULONG Id,
- IN ULONG PaletteEntry)
-{
- /* Set the palette index */
- __outpb(VGA_BASE_IO_PORT + DAC_ADDRESS_WRITE_PORT, (UCHAR)Id);
-
- /* Set RGB colors */
- __outpb(VGA_BASE_IO_PORT + DAC_DATA_REG_PORT, PaletteEntry & 0xFF);
- __outpb(VGA_BASE_IO_PORT + DAC_DATA_REG_PORT, (PaletteEntry >>= 8) & 0xFF);
- __outpb(VGA_BASE_IO_PORT + DAC_DATA_REG_PORT, (PaletteEntry >> 8) & 0xFF);
-}
-
VOID
NTAPI
-InitializePalette(VOID)
-{
- ULONG PaletteEntry[16] = {0x000000,
- 0x000020,
- 0x002000,
- 0x002020,
- 0x200000,
- 0x200020,
- 0x202000,
- 0x202020,
- 0x303030,
- 0x00003F,
- 0x003F00,
- 0x003F3F,
- 0x3F0000,
- 0x3F003F,
- 0x3F3F00,
- 0x3F3F3F};
- ULONG i;
-
- /* Loop all the entries and set their palettes */
- for (i = 0; i < 16; i++) SetPaletteEntry(i, PaletteEntry[i]);
-}
-
-static VOID
-NTAPI
-VgaScroll(IN ULONG Scroll)
+DoScroll(
+ _In_ ULONG Scroll)
{
ULONG Top, RowSize;
PUCHAR OldPosition, NewPosition;
}
}
-static VOID
+VOID
NTAPI
-PreserveRow(IN ULONG CurrentTop,
- IN ULONG TopDelta,
- IN BOOLEAN Restore)
+PreserveRow(
+ _In_ ULONG CurrentTop,
+ _In_ ULONG TopDelta,
+ _In_ BOOLEAN Restore)
{
PUCHAR Position1, Position2;
ULONG Count;
/* PUBLIC FUNCTIONS **********************************************************/
-/*
- * @implemented
- */
-ULONG
-NTAPI
-VidSetTextColor(IN ULONG Color)
-{
- ULONG OldColor;
-
- /* Save the old color and set the new one */
- OldColor = VidpTextColor;
- VidpTextColor = Color;
- return OldColor;
-}
-
/*
* @implemented
*/
*/
VOID
NTAPI
-VidDisplayString(IN PUCHAR String)
-{
- ULONG TopDelta = BOOTCHAR_HEIGHT + 1;
-
- /* Start looping the string */
- for (; *String; ++String)
- {
- /* Treat new-line separately */
- if (*String == '\n')
- {
- /* Modify Y position */
- VidpCurrentY += TopDelta;
- if (VidpCurrentY + TopDelta - 1 > VidpScrollRegion[3])
- {
- /* Scroll the view and clear the current row */
- VgaScroll(TopDelta);
- VidpCurrentY -= TopDelta;
- PreserveRow(VidpCurrentY, TopDelta, TRUE);
- }
- else
- {
- /* Preserve the current row */
- PreserveRow(VidpCurrentY, TopDelta, FALSE);
- }
-
- /* Update current X */
- VidpCurrentX = VidpScrollRegion[0];
-
- /* No need to clear this row */
- ClearRow = FALSE;
- }
- else if (*String == '\r')
- {
- /* Update current X */
- VidpCurrentX = VidpScrollRegion[0];
-
- /* If a new-line does not follow we will clear the current row */
- if (String[1] != '\n') ClearRow = TRUE;
- }
- else
- {
- /* Clear the current row if we had a return-carriage without a new-line */
- if (ClearRow)
- {
- PreserveRow(VidpCurrentY, TopDelta, TRUE);
- ClearRow = FALSE;
- }
-
- /* Display this character */
- DisplayCharacter(*String, VidpCurrentX, VidpCurrentY, VidpTextColor, 16);
- VidpCurrentX += 8;
-
- /* Check if we should scroll */
- if (VidpCurrentX + 7 > VidpScrollRegion[2])
- {
- /* Update Y position and check if we should scroll it */
- VidpCurrentY += TopDelta;
- if (VidpCurrentY + TopDelta - 1 > VidpScrollRegion[3])
- {
- /* Scroll the view and clear the current row */
- VgaScroll(TopDelta);
- VidpCurrentY -= TopDelta;
- PreserveRow(VidpCurrentY, TopDelta, TRUE);
- }
- else
- {
- /* Preserve the current row */
- PreserveRow(VidpCurrentY, TopDelta, FALSE);
- }
-
- /* Update current X */
- VidpCurrentX = VidpScrollRegion[0];
- }
- }
- }
-}
-
-/*
- * @implemented
- */
-VOID
-NTAPI
-VidScreenToBufferBlt(OUT PUCHAR Buffer,
- IN ULONG Left,
- IN ULONG Top,
- IN ULONG Width,
- IN ULONG Height,
- IN ULONG Delta)
+VidScreenToBufferBlt(
+ _Out_ PUCHAR Buffer,
+ _In_ ULONG Left,
+ _In_ ULONG Top,
+ _In_ ULONG Width,
+ _In_ ULONG Height,
+ _In_ ULONG Delta)
{
ULONG Plane;
ULONG XDistance;
*/
VOID
NTAPI
-VidSolidColorFill(IN ULONG Left,
- IN ULONG Top,
- IN ULONG Right,
- IN ULONG Bottom,
- IN UCHAR Color)
+VidSolidColorFill(
+ _In_ ULONG Left,
+ _In_ ULONG Top,
+ _In_ ULONG Right,
+ _In_ ULONG Bottom,
+ _In_ UCHAR Color)
{
ULONG rMask, lMask;
ULONG LeftOffset, RightOffset, Distance;
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