precomp.h

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/*
 * PROJECT:     ReactOS Boot Video Driver
 * LICENSE:     GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
 * PURPOSE:     Precompiled header
 * COPYRIGHT:   Copyright 2007 Alex Ionescu <alex.ionescu@reactos.org>
 *              Copyright 2020 Dmitry Borisov <di.sean@protonmail.com>
 *              Copyright 2020 Stanislav Motylkov <x86corez@gmail.com>
 */
 
#pragma once
 
#include <ntifs.h>
#include <ndk/halfuncs.h>
#include <drivers/bootvid/bootvid.h>
 
/* Module-specific header */
#ifdef MODULE_HEADER
#include MODULE_HEADER
#endif
 
#ifndef NO_VIDEO_GRAPHICS
 
/* Define if FontData has upside-down characters */
#undef CHAR_GEN_UPSIDE_DOWN
 
#define BOOTCHAR_HEIGHT 13
#define BOOTCHAR_WIDTH  8 // Each character line is encoded in a UCHAR.
 
/* Bitmap Header */
typedef struct tagBITMAPINFOHEADER
{
    ULONG biSize;
    LONG biWidth;
    LONG biHeight;
    USHORT biPlanes;
    USHORT biBitCount;
    ULONG biCompression;
    ULONG biSizeImage;
    LONG biXPelsPerMeter;
    LONG biYPelsPerMeter;
    ULONG biClrUsed;
    ULONG biClrImportant;
} BITMAPINFOHEADER, *PBITMAPINFOHEADER;
 
/* Supported bitmap compression formats */
#define BI_RGB  0
#define BI_RLE4 2
 
typedef ULONG RGBQUAD;
 
#else // NO_VIDEO_GRAPHICS
 
/*
 * So that:
 * TEXT_WIDTH == (SCREEN_WIDTH / BOOTCHAR_WIDTH) == 80
 * TEXT_HEIGHT == (SCREEN_HEIGHT / BOOTCHAR_HEIGHT) == 25
 */
#ifndef BOOTCHAR_HEIGHT
#define BOOTCHAR_HEIGHT 19
#endif
#ifndef BOOTCHAR_WIDTH
#define BOOTCHAR_WIDTH  8
#endif
 
#endif // !NO_VIDEO_GRAPHICS
 
typedef struct _URECT
{
    ULONG Left;
    ULONG Top;
    ULONG Right;
    ULONG Bottom;
} URECT;
 
/*
 * Globals
 */
extern UCHAR VidpTextColor;
extern ULONG VidpCurrentX;
extern ULONG VidpCurrentY;
extern URECT VidpScrollRegion;
 
#ifndef NO_VIDEO_GRAPHICS
 
extern const UCHAR VidpFontData[256 * BOOTCHAR_HEIGHT];
extern const RGBQUAD VidpDefaultPalette[BV_MAX_COLORS];
 
#define RGB(r, g, b)    ((RGBQUAD)(((UCHAR)(b) | ((USHORT)((UCHAR)(g))<<8)) | (((ULONG)(UCHAR)(r))<<16)))
 
#define GetRValue(quad)     ((UCHAR)(((quad)>>16) & 0xFF))
#define GetGValue(quad)     ((UCHAR)(((quad)>>8) & 0xFF))
#define GetBValue(quad)     ((UCHAR)((quad) & 0xFF))
 
#ifndef InitializePalette
#define InitializePalette() InitPaletteWithTable(VidpDefaultPalette, BV_MAX_COLORS)
#endif
 
#ifdef CHAR_GEN_UPSIDE_DOWN
# define GetFontPtr(_Char)  (&VidpFontData[(_Char) * BOOTCHAR_HEIGHT] + BOOTCHAR_HEIGHT - 1)
# define FONT_PTR_DELTA     (-1)
#else
# define GetFontPtr(_Char)  (&VidpFontData[(_Char) * BOOTCHAR_HEIGHT])
# define FONT_PTR_DELTA     (1)
#endif
 
#endif // !NO_VIDEO_GRAPHICS
 
 
VOID
PreserveRow(
    _In_ ULONG CurrentTop,
    _In_ ULONG Height,
    _In_ BOOLEAN Restore);
 
VOID
DoScroll(
    _In_ ULONG Scroll);
 
VOID
DisplayCharacter(
    _In_ CHAR Character,
    _In_ ULONG Left,
    _In_ ULONG Top,
    _In_ ULONG TextColor,
    _In_ ULONG BackColor);
 
VOID
ResetDisplay(
    _In_ BOOLEAN SetMode);