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[BOOTVID] Replace hardcoded screen and font size numbers by #define-d values.

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This commit is contained in:
Hermès Bélusca-Maïto 2019-12-22 14:09:43 +01:00
parent ff722ac72e
commit 1d2b0fbcd1
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GPG key ID: 3B2539C65E7B93D0
4 changed files with 55 additions and 49 deletions
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36
drivers/base/bootvid/arm/bootvid.c
View file

@ -33,8 +33,8 @@ ULONG VidpScrollRegion[4] =
{
0,
0,
640 - 1,
480 - 1
SCREEN_WIDTH - 1,
SCREEN_HEIGHT - 1
};
typedef struct _VGA_COLOR
@ -97,7 +97,7 @@ VidpSetPixel(IN ULONG Left,
//
// Calculate the pixel position
//
PixelPosition = &VgaArmBase[Left + (Top * 640)];
PixelPosition = &VgaArmBase[Left + (Top * SCREEN_WIDTH)];
//
// Set our color
@ -117,10 +117,10 @@ DisplayCharacter(IN CHAR Character,
ULONG i, j, XOffset;
/* Get the font line for this character */
FontChar = &FontData[Character * 13 - Top];
FontChar = &FontData[Character * BOOTCHAR_HEIGHT - Top];
/* Loop each pixel height */
i = 13;
i = BOOTCHAR_HEIGHT;
do
{
/* Loop each pixel width */
@ -159,8 +159,8 @@ VgaScroll(IN ULONG Scroll)
PUSHORT i, j;
/* Set memory positions of the scroll */
SourceOffset = &VgaArmBase[(VidpScrollRegion[1] * 80) + (VidpScrollRegion[0] >> 3)];
DestOffset = &SourceOffset[Scroll * 80];
SourceOffset = &VgaArmBase[(VidpScrollRegion[1] * (SCREEN_WIDTH / 8)) + (VidpScrollRegion[0] >> 3)];
DestOffset = &SourceOffset[Scroll * (SCREEN_WIDTH / 8)];
/* Save top and check if it's above the bottom */
Top = VidpScrollRegion[1];
@ -196,8 +196,8 @@ VgaScroll(IN ULONG Scroll)
}
/* Move to the next line */
SourceOffset += 80;
DestOffset += 80;
SourceOffset += (SCREEN_WIDTH / 8);
DestOffset += (SCREEN_WIDTH / 8);
/* Increase top */
Top++;
@ -219,18 +219,18 @@ PreserveRow(IN ULONG CurrentTop,
if (Direction)
{
/* Calculate the position in memory for the row */
Position1 = &VgaArmBase[CurrentTop * 80];
Position2 = &VgaArmBase[0x9600];
Position1 = &VgaArmBase[CurrentTop * (SCREEN_WIDTH / 8)];
Position2 = &VgaArmBase[SCREEN_HEIGHT * (SCREEN_WIDTH / 8)];
}
else
{
/* Calculate the position in memory for the row */
Position1 = &VgaArmBase[0x9600];
Position2 = &VgaArmBase[CurrentTop * 80];
Position1 = &VgaArmBase[SCREEN_HEIGHT * (SCREEN_WIDTH / 8)];
Position2 = &VgaArmBase[CurrentTop * (SCREEN_WIDTH / 8)];
}
/* Set the count and loop every pixel */
Count = TopDelta * 80;
Count = TopDelta * (SCREEN_WIDTH / 8);
while (Count--)
{
/* Write the data back on the other position */
@ -255,8 +255,8 @@ VidpInitializeDisplay(VOID)
//
// Initialize timings to 640x480
//
WRITE_REGISTER_ULONG(PL110_LCDTIMING0, LCDTIMING0_PPL(640));
WRITE_REGISTER_ULONG(PL110_LCDTIMING1, LCDTIMING1_LPP(480));
WRITE_REGISTER_ULONG(PL110_LCDTIMING0, LCDTIMING0_PPL(SCREEN_WIDTH));
WRITE_REGISTER_ULONG(PL110_LCDTIMING1, LCDTIMING1_LPP(SCREEN_HEIGHT));
//
// Enable the LCD Display
@ -327,7 +327,7 @@ VidResetDisplay(IN BOOLEAN HalReset)
// Re-initialize the palette and fill the screen black
//
//InitializePalette();
VidSolidColorFill(0, 0, 639, 479, 0);
VidSolidColorFill(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1, 0);
}
/*
@ -424,7 +424,7 @@ VOID
NTAPI
VidDisplayString(IN PUCHAR String)
{
ULONG TopDelta = 14;
ULONG TopDelta = BOOTCHAR_HEIGHT + 1;
/* Start looping the string */
while (*String)

2
drivers/base/bootvid/i386/bootvid.c
View file

@ -485,5 +485,5 @@ VidResetDisplay(IN BOOLEAN HalReset)
/* Re-initialize the palette and fill the screen black */
InitializePalette();
VidSolidColorFill(0, 0, 639, 479, 0);
VidSolidColorFill(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1, 0);
}

57
drivers/base/bootvid/i386/vga.c
View file

@ -6,8 +6,8 @@ static ULONG ScrollRegion[4] =
{
0,
0,
640 - 1,
480 - 1
SCREEN_WIDTH - 1,
SCREEN_HEIGHT - 1
};
static UCHAR lMaskTable[8] =
{
@ -97,7 +97,7 @@ SetPixel(IN ULONG Left,
PUCHAR PixelPosition;
/* Calculate the pixel position. */
PixelPosition = (PUCHAR)(VgaBase + (Left >> 3) + (Top * 80));
PixelPosition = (PUCHAR)(VgaBase + (Left >> 3) + (Top * (SCREEN_WIDTH / 8)));
/* Select the bitmask register and write the mask */
__outpw(VGA_BASE_IO_PORT + GRAPH_ADDRESS_PORT, (PixelMask[Left & 7] << 8) | IND_BIT_MASK);
@ -149,14 +149,14 @@ DisplayCharacter(IN CHAR Character,
/* Get the font and pixel pointer */
FontChar = GetFontPtr(Character);
PixelPtr = (PUCHAR)(VgaBase + (Left >> 3) + (Top * 80));
PixelPtr = (PUCHAR)(VgaBase + (Left >> 3) + (Top * (SCREEN_WIDTH / 8)));
/* Loop all pixel rows */
Height = BOOTCHAR_HEIGHT;
do
{
SET_PIXELS(PixelPtr, *FontChar >> Shift, TextColor);
PixelPtr += 80;
PixelPtr += (SCREEN_WIDTH / 8);
FontChar += FONT_PTR_DELTA;
} while (--Height);
@ -168,14 +168,14 @@ DisplayCharacter(IN CHAR Character,
/* Get the font and pixel pointer (2nd byte) */
FontChar = GetFontPtr(Character);
PixelPtr = (PUCHAR)(VgaBase + (Left >> 3) + (Top * 80) + 1);
PixelPtr = (PUCHAR)(VgaBase + (Left >> 3) + (Top * (SCREEN_WIDTH / 8)) + 1);
/* Loop all pixel rows */
Height = BOOTCHAR_HEIGHT;
do
{
SET_PIXELS(PixelPtr, *FontChar << Shift, TextColor);
PixelPtr += 80;
PixelPtr += (SCREEN_WIDTH / 8);
FontChar += FONT_PTR_DELTA;
} while (--Height);
}
@ -192,14 +192,14 @@ DisplayCharacter(IN CHAR Character,
/* Get the font and pixel pointer */
FontChar = GetFontPtr(Character);
PixelPtr = (PUCHAR)(VgaBase + (Left >> 3) + (Top * 80));
PixelPtr = (PUCHAR)(VgaBase + (Left >> 3) + (Top * (SCREEN_WIDTH / 8)));
/* Loop all pixel rows */
Height = BOOTCHAR_HEIGHT;
do
{
SET_PIXELS(PixelPtr, ~*FontChar >> Shift, BackColor);
PixelPtr += 80;
PixelPtr += (SCREEN_WIDTH / 8);
FontChar += FONT_PTR_DELTA;
} while (--Height);
@ -211,14 +211,14 @@ DisplayCharacter(IN CHAR Character,
/* Get the font and pixel pointer (2nd byte) */
FontChar = GetFontPtr(Character);
PixelPtr = (PUCHAR)(VgaBase + (Left >> 3) + (Top * 80) + 1);
PixelPtr = (PUCHAR)(VgaBase + (Left >> 3) + (Top * (SCREEN_WIDTH / 8)) + 1);
/* Loop all pixel rows */
Height = BOOTCHAR_HEIGHT;
do
{
SET_PIXELS(PixelPtr, ~*FontChar << Shift, BackColor);
PixelPtr += 80;
PixelPtr += (SCREEN_WIDTH / 8);
FontChar += FONT_PTR_DELTA;
} while (--Height);
}
@ -335,8 +335,8 @@ VgaScroll(IN ULONG Scroll)
RowSize = (ScrollRegion[2] - ScrollRegion[0] + 1) / 8;
/* Calculate the position in memory for the row */
OldPosition = (PUCHAR)(VgaBase + (ScrollRegion[1] + Scroll) * 80 + ScrollRegion[0] / 8);
NewPosition = (PUCHAR)(VgaBase + ScrollRegion[1] * 80 + ScrollRegion[0] / 8);
OldPosition = (PUCHAR)(VgaBase + (ScrollRegion[1] + Scroll) * (SCREEN_WIDTH / 8) + ScrollRegion[0] / 8);
NewPosition = (PUCHAR)(VgaBase + ScrollRegion[1] * (SCREEN_WIDTH / 8) + ScrollRegion[0] / 8);
/* Start loop */
for (Top = ScrollRegion[1]; Top <= ScrollRegion[3]; ++Top)
@ -350,8 +350,8 @@ VgaScroll(IN ULONG Scroll)
for (i = 0; i < RowSize; ++i)
WRITE_REGISTER_UCHAR(NewPosition + i, READ_REGISTER_UCHAR(OldPosition + i));
#endif
OldPosition += 80;
NewPosition += 80;
OldPosition += (SCREEN_WIDTH / 8);
NewPosition += (SCREEN_WIDTH / 8);
}
}
@ -377,19 +377,18 @@ PreserveRow(IN ULONG CurrentTop,
if (Direction)
{
/* Calculate the position in memory for the row */
Position1 = (PUCHAR)(VgaBase + CurrentTop * 80);
Position2 = (PUCHAR)(VgaBase + 0x9600);
Position1 = (PUCHAR)(VgaBase + CurrentTop * (SCREEN_WIDTH / 8));
Position2 = (PUCHAR)(VgaBase + SCREEN_HEIGHT * (SCREEN_WIDTH / 8));
}
else
{
/* Calculate the position in memory for the row */
Position1 = (PUCHAR)(VgaBase + 0x9600);
Position2 = (PUCHAR)(VgaBase + CurrentTop * 80);
Position1 = (PUCHAR)(VgaBase + SCREEN_HEIGHT * (SCREEN_WIDTH / 8));
Position2 = (PUCHAR)(VgaBase + CurrentTop * (SCREEN_WIDTH / 8));
}
/* Set the count and loop every pixel */
Count = TopDelta * 80;
Count = TopDelta * (SCREEN_WIDTH / 8);
#if defined(_M_IX86) || defined(_M_AMD64)
__movsb(Position1, Position2, Count);
#else
@ -966,7 +965,7 @@ VidScreenToBufferBlt(IN PUCHAR Buffer,
RtlZeroMemory(Buffer, Delta * Height);
/* Calculate the pixel offset and convert the X distance into byte form */
PixelOffset = Top * 80 + (Left >> 3);
PixelOffset = Top * (SCREEN_WIDTH / 8) + (Left >> 3);
XDistance >>= 3;
/* Loop the 4 planes */
@ -1029,7 +1028,7 @@ VidScreenToBufferBlt(IN PUCHAR Buffer,
}
/* Update pixel position */
PixelPosition += 80;
PixelPosition += (SCREEN_WIDTH / 8);
i += Delta;
} while (--y);
}
@ -1072,7 +1071,7 @@ VidSolidColorFill(IN ULONG Left,
__outpw(VGA_BASE_IO_PORT + GRAPH_ADDRESS_PORT, 7);
/* Calculate pixel position for the read */
Offset = (PUCHAR)(VgaBase + (Top * 80) + LeftOffset);
Offset = (PUCHAR)(VgaBase + (Top * (SCREEN_WIDTH / 8)) + LeftOffset);
/* Select the bitmask register and write the mask */
__outpw(VGA_BASE_IO_PORT + GRAPH_ADDRESS_PORT, (USHORT)lMask);
@ -1088,7 +1087,7 @@ VidSolidColorFill(IN ULONG Left,
WRITE_REGISTER_UCHAR(Offset, READ_REGISTER_UCHAR(Offset) & Color);
/* Move to the next line */
Offset += 80;
Offset += (SCREEN_WIDTH / 8);
} while (--i);
}
@ -1096,7 +1095,7 @@ VidSolidColorFill(IN ULONG Left,
if (Distance)
{
/* Calculate new pixel position */
Offset = (PUCHAR)(VgaBase + (Top * 80) + RightOffset);
Offset = (PUCHAR)(VgaBase + (Top * (SCREEN_WIDTH / 8)) + RightOffset);
Distance--;
/* Select the bitmask register and write the mask */
@ -1114,7 +1113,7 @@ VidSolidColorFill(IN ULONG Left,
READ_REGISTER_UCHAR(Offset) & Color);
/* Move to the next line */
Offset += 80;
Offset += (SCREEN_WIDTH / 8);
} while (--i);
}
@ -1122,7 +1121,7 @@ VidSolidColorFill(IN ULONG Left,
if (Distance)
{
/* Calculate new pixel position */
Offset = (PUCHAR)(VgaBase + (Top * 80) + LeftOffset + 1);
Offset = (PUCHAR)(VgaBase + (Top * (SCREEN_WIDTH / 8)) + LeftOffset + 1);
/* Set the bitmask to 0xFF for all 4 planes */
__outpw(VGA_BASE_IO_PORT + GRAPH_ADDRESS_PORT, 0xFF08);
@ -1145,7 +1144,7 @@ VidSolidColorFill(IN ULONG Left,
}
/* Update position in memory */
Offset += (80 - Distance);
Offset += ((SCREEN_WIDTH / 8) - Distance);
} while (--i);
}
}

9
drivers/base/bootvid/precomp.h
View file

@ -8,7 +8,14 @@
/* Define if FontData has upside down characters */
#undef CHAR_GEN_UPSIDE_DOWN
#define BOOTCHAR_HEIGHT 13
#define BOOTCHAR_HEIGHT 13
#define BOOTCHAR_WIDTH 8 // Each character line is encoded in a UCHAR.
/*
* Screen resolution (for default VGA)
*/
#define SCREEN_WIDTH 640
#define SCREEN_HEIGHT 480
#ifndef _M_ARM
#include "vga.h"