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62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
/*
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* PROJECT: ReactOS Boot Video Driver for NEC PC-98 series
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* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
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* PURPOSE: Arch-specific header file
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* COPYRIGHT: Copyright 2020 Dmitry Borisov <di.sean@protonmail.com>
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*/
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#pragma once
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/* INCLUDES *******************************************************************/
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#include <drivers/pc98/video.h>
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/* GLOBALS ********************************************************************/
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#define BYTES_PER_SCANLINE (SCREEN_WIDTH / 8)
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#define FB_OFFSET(x, y) ((y) * SCREEN_WIDTH + (x))
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extern ULONG_PTR FrameBuffer;
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/* PROTOTYPES *****************************************************************/
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VOID
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DisplayCharacter(
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_In_ CHAR Character,
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_In_ ULONG Left,
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_In_ ULONG Top,
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_In_ ULONG TextColor,
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_In_ ULONG BackColor);
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VOID
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DoScroll(
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_In_ ULONG Scroll);
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VOID
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InitPaletteWithTable(
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_In_ PULONG Table,
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_In_ ULONG Count);
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VOID
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PreserveRow(
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_In_ ULONG CurrentTop,
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_In_ ULONG TopDelta,
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_In_ BOOLEAN Restore);
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VOID
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PrepareForSetPixel(VOID);
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/* FUNCTIONS ******************************************************************/
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FORCEINLINE
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VOID
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SetPixel(
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_In_ ULONG Left,
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_In_ ULONG Top,
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_In_ UCHAR Color)
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{
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PUCHAR PixelPosition = (PUCHAR)(FrameBuffer + FB_OFFSET(Left, Top));
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WRITE_REGISTER_UCHAR(PixelPosition, Color);
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}
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