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Allow to clear framebuffer screen with any, custom background color
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This commit is contained in:
Rafal Kupiec
2024-05-12 22:43:06 +02:00
parent c576f7f8f2
commit e311cad8f7
3 changed files with 27 additions and 5 deletions
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19
xtoskrnl/hl/efifb.c
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@@ -11,7 +11,10 @@
/**
* Clears the screen by drawing a filled black box.
* Clears the screen by drawing a box filled with specified color.
*
* @param Color
* Specifies the color of the box used to fill the screen.
*
* @return This routine does not return any value.
*
@@ -19,7 +22,7 @@
*/
XTAPI
VOID
HlClearScreen(VOID)
HlClearScreen(IN ULONG Color)
{
SIZE_T Line, PositionX, PositionY;
PULONG FrameBuf;
@@ -33,7 +36,7 @@ HlClearScreen(VOID)
Line = PositionY * HlpFrameBufferData.PixelsPerScanLine;
for(PositionX = 0; PositionX < HlpFrameBufferData.Width; PositionX++)
{
FrameBuf[Line + PositionX] = 0x00000000;
FrameBuf[Line + PositionX] = Color;
}
}
}
@@ -128,10 +131,18 @@ HlInitializeFrameBuffer(VOID)
HlpFrameBufferData.BitsPerPixel = KeInitializationBlock->LoaderInformation.FrameBuffer.BitsPerPixel;
HlpFrameBufferData.PixelsPerScanLine = KeInitializationBlock->LoaderInformation.FrameBuffer.PixelsPerScanLine;
HlpFrameBufferData.Pitch = KeInitializationBlock->LoaderInformation.FrameBuffer.Pitch;
HlpFrameBufferData.Pixels.BlueShift = KeInitializationBlock->LoaderInformation.FrameBuffer.Pixels.BlueShift;
HlpFrameBufferData.Pixels.BlueSize = KeInitializationBlock->LoaderInformation.FrameBuffer.Pixels.BlueSize;
HlpFrameBufferData.Pixels.GreenShift = KeInitializationBlock->LoaderInformation.FrameBuffer.Pixels.GreenShift;
HlpFrameBufferData.Pixels.GreenSize = KeInitializationBlock->LoaderInformation.FrameBuffer.Pixels.GreenSize;
HlpFrameBufferData.Pixels.RedShift = KeInitializationBlock->LoaderInformation.FrameBuffer.Pixels.RedShift;
HlpFrameBufferData.Pixels.RedSize = KeInitializationBlock->LoaderInformation.FrameBuffer.Pixels.RedSize;
HlpFrameBufferData.Pixels.ReservedShift = KeInitializationBlock->LoaderInformation.FrameBuffer.Pixels.ReservedShift;
HlpFrameBufferData.Pixels.ReservedSize = KeInitializationBlock->LoaderInformation.FrameBuffer.Pixels.ReservedSize;
HlpFrameBufferData.Initialized = TRUE;
/* Clear screen */
HlClearScreen();
HlClearScreen(0x00000000);
/* Return success */
return STATUS_SUCCESS;