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[NTOSKRNL][HAL][BOOTVID] Some more code refactoring

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- Add boot video color constants
- Refactor palette initialization
- Move some common stuff in right place
- Get rid of some magic constants and hardcoded values
- Get rid of TopDelta variable (calculated at compile time)
- Update SAL annotations

Addendum to 5f2ca473. CORE-16216 CORE-16219
This commit is contained in:
Stanislav Motylkov 2020-05-09 17:20:57 +03:00
parent 909f50a857
commit cd91271796
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GPG key ID: AFE513258CBA9E92
15 changed files with 367 additions and 426 deletions
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56
drivers/base/bootvid/arm/arm.h
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@ -23,41 +23,28 @@ extern PUSHORT VgaArmBase;
#define READ_REGISTER_USHORT(r) (*(volatile USHORT * const)(r))
#define WRITE_REGISTER_USHORT(r, v) (*(volatile USHORT *)(r) = (v))
PALETTE_ENTRY VidpVga8To16BitTransform[16] =
{
{0x00, 0x00, 0x00}, // Black
{0x00, 0x00, 0x08}, // Blue
{0x00, 0x08, 0x00}, // Green
{0x00, 0x08, 0x08}, // Cyan
{0x08, 0x00, 0x00}, // Red
{0x08, 0x00, 0x08}, // Magenta
{0x0B, 0x0D, 0x0F}, // Brown
{0x10, 0x10, 0x10}, // Light Gray
{0x08, 0x08, 0x08}, // Dark Gray
{0x00, 0x00, 0x1F}, // Light Blue
{0x00, 0x1F, 0x00}, // Light Green
{0x00, 0x1F, 0x1F}, // Light Cyan
{0x1F, 0x00, 0x00}, // Light Red
{0x1F, 0x00, 0x1F}, // Light Magenta
{0x1F, 0x1F, 0x00}, // Yellow
{0x1F, 0x1F, 0x1F}, // White
};
FORCEINLINE
USHORT
VidpBuildColor(_In_ UCHAR Color)
VidpBuildColor(
_In_ UCHAR Color)
{
UCHAR Red, Green, Blue;
/* Extract color components */
Red = VidpVga8To16BitTransform[Color].Red;
Green = VidpVga8To16BitTransform[Color].Green;
Blue = VidpVga8To16BitTransform[Color].Blue;
Red = GetRValue(DefaultPalette[Color]) >> 3;
Green = GetGValue(DefaultPalette[Color]) >> 3;
Blue = GetBValue(DefaultPalette[Color]) >> 3;
/* Build the 16-bit color mask */
return ((Red & 0x1F) << 11) | ((Green & 0x1F) << 6) | ((Blue & 0x1F));
}
VOID
NTAPI
InitPaletteWithTable(
_In_ PULONG Table,
_In_ ULONG Count);
FORCEINLINE
VOID
SetPixel(
@ -73,3 +60,24 @@ SetPixel(
/* Set our color */
WRITE_REGISTER_USHORT(PixelPosition, VidpBuildColor(Color));
}
VOID
NTAPI
PreserveRow(
_In_ ULONG CurrentTop,
_In_ ULONG TopDelta,
_In_ BOOLEAN Restore);
VOID
NTAPI
DoScroll(
_In_ ULONG Scroll);
VOID
NTAPI
DisplayCharacter(
_In_ CHAR Character,
_In_ ULONG Left,
_In_ ULONG Top,
_In_ ULONG TextColor,
_In_ ULONG BackColor);