inbv.c File Reference

#include <ntoskrnl.h>
#include <debug.h>
#include "bootvid/bootvid.h"

Include dependency graph for inbv.c:

Go to the source code of this file.

Classes
struct	_INBV_PROGRESS_STATE
struct	_BT_PROGRESS_INDICATOR
struct	tagRGBQUAD
struct	tagBITMAPINFOHEADER

Macros
#define	NDEBUG
#define	MM_READONLY   1
#define	MM_READWRITE   4
#define	TAG_OSTR   'RTSO'
#define	SCREEN_WIDTH   640
#define	SCREEN_HEIGHT   480
#define	INBV_ROTBAR_IMPLEMENTED
#define	ROT_BAR_DEFAULT_MODE   RB_PROGRESS_BAR
#define	PALETTE_FADE_STEPS   12
#define	PALETTE_FADE_TIME   (15 * 1000) /* 15 ms */

Typedefs
typedef struct _INBV_PROGRESS_STATE	INBV_PROGRESS_STATE
typedef struct _BT_PROGRESS_INDICATOR	BT_PROGRESS_INDICATOR
typedef struct _BT_PROGRESS_INDICATOR *	PBT_PROGRESS_INDICATOR
typedef enum _ROT_BAR_TYPE	ROT_BAR_TYPE
typedef enum _BBLT_VERT_ALIGNMENT	BBLT_VERT_ALIGNMENT
typedef enum _BBLT_HORZ_ALIGNMENT	BBLT_HORZ_ALIGNMENT
typedef enum _ROT_BAR_STATUS	ROT_BAR_STATUS
typedef struct tagRGBQUAD	RGBQUAD
typedef struct tagRGBQUAD *	LPRGBQUAD
typedef struct tagBITMAPINFOHEADER	BITMAPINFOHEADER
typedef struct tagBITMAPINFOHEADER *	PBITMAPINFOHEADER

Enumerations
enum	_ROT_BAR_TYPE { RB_UNSPECIFIED, RB_SQUARE_CELLS, RB_PROGRESS_BAR }
enum	_BBLT_VERT_ALIGNMENT { AL_VERTICAL_TOP = 0, AL_VERTICAL_CENTER, AL_VERTICAL_BOTTOM }
enum	_BBLT_HORZ_ALIGNMENT { AL_HORIZONTAL_LEFT = 0, AL_HORIZONTAL_CENTER, AL_HORIZONTAL_RIGHT }
enum	_ROT_BAR_STATUS { RBS_FADEIN = 1, RBS_ANIMATE, RBS_STOP_ANIMATE, RBS_STATUS_MAX }

Functions
VOID NTAPI	InbvAcquireLock (VOID)
VOID NTAPI	InbvReleaseLock (VOID)
static VOID	BootLogoFadeIn (VOID)
static VOID	BitBltPalette (IN PVOID Image, IN BOOLEAN NoPalette, IN ULONG X, IN ULONG Y)
static VOID	BitBltAligned (IN PVOID Image, IN BOOLEAN NoPalette, IN BBLT_HORZ_ALIGNMENT HorizontalAlignment, IN BBLT_VERT_ALIGNMENT VerticalAlignment, IN ULONG MarginLeft, IN ULONG MarginTop, IN ULONG MarginRight, IN ULONG MarginBottom)
INIT_FUNCTION PVOID NTAPI	FindBitmapResource (IN PLOADER_PARAMETER_BLOCK LoaderBlock, IN ULONG ResourceId)
INIT_FUNCTION BOOLEAN NTAPI	InbvDriverInitialize (IN PLOADER_PARAMETER_BLOCK LoaderBlock, IN ULONG Count)
VOID NTAPI	InbvEnableBootDriver (IN BOOLEAN Enable)
VOID NTAPI	InbvAcquireDisplayOwnership (VOID)
VOID NTAPI	InbvSetDisplayOwnership (IN BOOLEAN DisplayOwned)
BOOLEAN NTAPI	InbvCheckDisplayOwnership (VOID)
INBV_DISPLAY_STATE NTAPI	InbvGetDisplayState (VOID)
BOOLEAN NTAPI	InbvDisplayString (IN PCHAR String)
BOOLEAN NTAPI	InbvEnableDisplayString (IN BOOLEAN Enable)
VOID NTAPI	InbvInstallDisplayStringFilter (IN INBV_DISPLAY_STRING_FILTER Filter)
BOOLEAN NTAPI	InbvIsBootDriverInstalled (VOID)
VOID NTAPI	InbvNotifyDisplayOwnershipLost (IN INBV_RESET_DISPLAY_PARAMETERS Callback)
BOOLEAN NTAPI	InbvResetDisplay (VOID)
VOID NTAPI	InbvSetScrollRegion (IN ULONG Left, IN ULONG Top, IN ULONG Right, IN ULONG Bottom)
VOID NTAPI	InbvSetTextColor (IN ULONG Color)
VOID NTAPI	InbvSolidColorFill (IN ULONG Left, IN ULONG Top, IN ULONG Right, IN ULONG Bottom, IN ULONG Color)
INIT_FUNCTION VOID NTAPI	InbvUpdateProgressBar (IN ULONG Progress)
VOID NTAPI	InbvBufferToScreenBlt (IN PUCHAR Buffer, IN ULONG X, IN ULONG Y, IN ULONG Width, IN ULONG Height, IN ULONG Delta)
VOID NTAPI	InbvBitBlt (IN PUCHAR Buffer, IN ULONG X, IN ULONG Y)
VOID NTAPI	InbvScreenToBufferBlt (IN PUCHAR Buffer, IN ULONG X, IN ULONG Y, IN ULONG Width, IN ULONG Height, IN ULONG Delta)
INIT_FUNCTION VOID NTAPI	InbvSetProgressBarCoordinates (IN ULONG Left, IN ULONG Top)
INIT_FUNCTION VOID NTAPI	InbvSetProgressBarSubset (IN ULONG Floor, IN ULONG Ceiling)
INIT_FUNCTION VOID NTAPI	InbvIndicateProgress (VOID)
PUCHAR NTAPI	InbvGetResourceAddress (IN ULONG ResourceNumber)
NTSTATUS NTAPI	NtDisplayString (IN PUNICODE_STRING DisplayString)
static VOID NTAPI	InbvRotationThread (_In_ PVOID Context)
INIT_FUNCTION VOID NTAPI	InbvRotBarInit (VOID)
INIT_FUNCTION VOID NTAPI	DisplayBootBitmap (IN BOOLEAN TextMode)
INIT_FUNCTION VOID NTAPI	DisplayFilter (PCHAR *String)
INIT_FUNCTION VOID NTAPI	FinalizeBootLogo (VOID)

Variables
static KSPIN_LOCK	BootDriverLock
static KIRQL	InbvOldIrql
static INBV_DISPLAY_STATE	InbvDisplayState = INBV_DISPLAY_STATE_DISABLED
BOOLEAN	InbvBootDriverInstalled = FALSE
static BOOLEAN	InbvDisplayDebugStrings = FALSE
static INBV_DISPLAY_STRING_FILTER	InbvDisplayFilter = NULL
static ULONG	ProgressBarLeft = 0
static ULONG	ProgressBarTop = 0
static BOOLEAN	ShowProgressBar = FALSE
static INBV_PROGRESS_STATE	InbvProgressState
static BT_PROGRESS_INDICATOR	InbvProgressIndicator = {0, 25, 0}
static INBV_RESET_DISPLAY_PARAMETERS	InbvResetDisplayParameters = NULL
static ULONG	ResourceCount = 0
static PUCHAR	ResourceList [1+IDB_MAX_RESOURCE]
static BOOLEAN	RotBarThreadActive = FALSE
static ROT_BAR_TYPE	RotBarSelection = RB_UNSPECIFIED
static ROT_BAR_STATUS	PltRotBarStatus = 0
static UCHAR	RotBarBuffer [24 *9]
static UCHAR	RotLineBuffer [SCREEN_WIDTH *6]
static ULONG	InbvTerminalTextColor = 37
static ULONG	InbvTerminalBkgdColor = 40
static RGBQUAD	MainPalette [16]

Macro Definition Documentation

INBV_ROTBAR_IMPLEMENTED

#define INBV_ROTBAR_IMPLEMENTED

Definition at line 82 of file inbv.c.

MM_READONLY

#define MM_READONLY   1

Definition at line 9 of file inbv.c.

MM_READWRITE

#define MM_READWRITE   4

Definition at line 10 of file inbv.c.

NDEBUG

#define NDEBUG

Definition at line 4 of file inbv.c.

PALETTE_FADE_STEPS

#define PALETTE_FADE_STEPS   12

Definition at line 179 of file inbv.c.

PALETTE_FADE_TIME

#define PALETTE_FADE_TIME   (15 * 1000) /* 15 ms */

Definition at line 180 of file inbv.c.

ROT_BAR_DEFAULT_MODE

#define ROT_BAR_DEFAULT_MODE   RB_PROGRESS_BAR

Definition at line 102 of file inbv.c.

SCREEN_HEIGHT

#define SCREEN_HEIGHT   480

Definition at line 60 of file inbv.c.

SCREEN_WIDTH

#define SCREEN_WIDTH   640

Definition at line 59 of file inbv.c.

TAG_OSTR

#define TAG_OSTR   'RTSO'

Definition at line 13 of file inbv.c.

Typedef Documentation

BBLT_HORZ_ALIGNMENT

typedef enum _BBLT_HORZ_ALIGNMENT BBLT_HORZ_ALIGNMENT

BBLT_VERT_ALIGNMENT

typedef enum _BBLT_VERT_ALIGNMENT BBLT_VERT_ALIGNMENT

BITMAPINFOHEADER

typedef struct tagBITMAPINFOHEADER BITMAPINFOHEADER

From bootvid/precomp.h

BT_PROGRESS_INDICATOR

typedef struct _BT_PROGRESS_INDICATOR BT_PROGRESS_INDICATOR

INBV_PROGRESS_STATE

typedef struct _INBV_PROGRESS_STATE INBV_PROGRESS_STATE

LPRGBQUAD

typedef struct tagRGBQUAD* LPRGBQUAD

PBITMAPINFOHEADER

typedef struct tagBITMAPINFOHEADER * PBITMAPINFOHEADER

PBT_PROGRESS_INDICATOR

typedef struct _BT_PROGRESS_INDICATOR * PBT_PROGRESS_INDICATOR

RGBQUAD

typedef struct tagRGBQUAD RGBQUAD

From include/psdk/wingdi.h

Examples

/srv/doxygen/reactos/win32ss/gdi/gdi32/objects/utils.c.

ROT_BAR_STATUS

typedef enum _ROT_BAR_STATUS ROT_BAR_STATUS

ROT_BAR_TYPE

typedef enum _ROT_BAR_TYPE ROT_BAR_TYPE

Enumeration Type Documentation

_BBLT_HORZ_ALIGNMENT

enum _BBLT_HORZ_ALIGNMENT

Enumerator
AL_HORIZONTAL_LEFT
AL_HORIZONTAL_CENTER
AL_HORIZONTAL_RIGHT

Definition at line 72 of file inbv.c.

{
    AL_HORIZONTAL_LEFT = 0,
    AL_HORIZONTAL_CENTER,
    AL_HORIZONTAL_RIGHT
} BBLT_HORZ_ALIGNMENT;

_BBLT_VERT_ALIGNMENT

enum _BBLT_VERT_ALIGNMENT

Enumerator
AL_VERTICAL_TOP
AL_VERTICAL_CENTER
AL_VERTICAL_BOTTOM

Definition at line 65 of file inbv.c.

{
    AL_VERTICAL_TOP = 0,
    AL_VERTICAL_CENTER,
    AL_VERTICAL_BOTTOM
} BBLT_VERT_ALIGNMENT;

_ROT_BAR_STATUS

enum _ROT_BAR_STATUS

Enumerator
RBS_FADEIN
RBS_ANIMATE
RBS_STOP_ANIMATE
RBS_STATUS_MAX

Definition at line 111 of file inbv.c.

{
    RBS_FADEIN = 1,
    RBS_ANIMATE,
    RBS_STOP_ANIMATE,
    RBS_STATUS_MAX
} ROT_BAR_STATUS;

_ROT_BAR_TYPE

enum _ROT_BAR_TYPE

Enumerator
RB_UNSPECIFIED
RB_SQUARE_CELLS
RB_PROGRESS_BAR

Definition at line 49 of file inbv.c.

{
    RB_UNSPECIFIED,
    RB_SQUARE_CELLS,
    RB_PROGRESS_BAR
} ROT_BAR_TYPE;

Function Documentation

BitBltAligned()

static VOID BitBltAligned ( IN PVOID  Image, IN BOOLEAN  NoPalette, IN BBLT_HORZ_ALIGNMENT  HorizontalAlignment, IN BBLT_VERT_ALIGNMENT  VerticalAlignment, IN ULONG  MarginLeft, IN ULONG  MarginTop, IN ULONG  MarginRight, IN ULONG  MarginBottom  )

static

Definition at line 294 of file inbv.c.

{
    PBITMAPINFOHEADER BitmapInfoHeader = Image;
    ULONG X, Y;

    /* Calculate X */
    switch (HorizontalAlignment)
    {
        case AL_HORIZONTAL_LEFT:
            X = MarginLeft - MarginRight;
            break;

        case AL_HORIZONTAL_CENTER:
            X = MarginLeft - MarginRight + (SCREEN_WIDTH - BitmapInfoHeader->biWidth + 1) / 2;
            break;

        case AL_HORIZONTAL_RIGHT:
            X = MarginLeft - MarginRight + SCREEN_WIDTH - BitmapInfoHeader->biWidth;
            break;

        default:
            /* Unknown */
            return;
    }

    /* Calculate Y */
    switch (VerticalAlignment)
    {
        case AL_VERTICAL_TOP:
            Y = MarginTop - MarginBottom;
            break;

        case AL_VERTICAL_CENTER:
            Y = MarginTop - MarginBottom + (SCREEN_HEIGHT - BitmapInfoHeader->biHeight + 1) / 2;
            break;

        case AL_VERTICAL_BOTTOM:
            Y = MarginTop - MarginBottom + SCREEN_HEIGHT - BitmapInfoHeader->biHeight;
            break;

        default:
            /* Unknown */
            return;
    }

    /* Finally draw the image */
    BitBltPalette(Image, NoPalette, X, Y);
}

Referenced by DisplayBootBitmap().

BitBltPalette()

static VOID BitBltPalette ( IN PVOID  Image, IN BOOLEAN  NoPalette, IN ULONG  X, IN ULONG  Y  )

static

Definition at line 262 of file inbv.c.

{
    LPRGBQUAD Palette;
    RGBQUAD OrigPalette[RTL_NUMBER_OF(MainPalette)];

    /* If requested, remove the palette from the image */
    if (NoPalette)
    {
        /* Get bitmap header and palette */
        PBITMAPINFOHEADER BitmapInfoHeader = Image;
        Palette = (LPRGBQUAD)((PUCHAR)Image + BitmapInfoHeader->biSize);

        /* Save the image original palette and remove palette information */
        RtlCopyMemory(OrigPalette, Palette, sizeof(OrigPalette));
        RtlZeroMemory(Palette, sizeof(OrigPalette));
    }

    /* Draw the image */
    InbvBitBlt(Image, X, Y);

    /* Restore the image original palette */
    if (NoPalette)
    {
        RtlCopyMemory(Palette, OrigPalette, sizeof(OrigPalette));
    }
}

Referenced by BitBltAligned(), and DisplayBootBitmap().

BootLogoFadeIn()

static VOID BootLogoFadeIn ( VOID  )

static

Definition at line 209 of file inbv.c.

{
    UCHAR PaletteBitmapBuffer[sizeof(BITMAPINFOHEADER) + sizeof(MainPalette)];
    PBITMAPINFOHEADER PaletteBitmap = (PBITMAPINFOHEADER)PaletteBitmapBuffer;
    LPRGBQUAD Palette = (LPRGBQUAD)(PaletteBitmapBuffer + sizeof(BITMAPINFOHEADER));
    ULONG Iteration, Index, ClrUsed;

    LARGE_INTEGER Delay;
    Delay.QuadPart = -(PALETTE_FADE_TIME * 10);

    /* Check if we are installed and we own the display */
    if (!InbvBootDriverInstalled ||
        (InbvDisplayState != INBV_DISPLAY_STATE_OWNED))
    {
        return;
    }

    /*
     * Build a bitmap containing the fade-in palette. The palette entries
     * are then processed in a loop and set using VidBitBlt function.
     */
    ClrUsed = RTL_NUMBER_OF(MainPalette);
    RtlZeroMemory(PaletteBitmap, sizeof(BITMAPINFOHEADER));
    PaletteBitmap->biSize = sizeof(BITMAPINFOHEADER);
    PaletteBitmap->biBitCount = 4;
    PaletteBitmap->biClrUsed = ClrUsed;

    /*
     * Main animation loop.
     */
    for (Iteration = 0; Iteration <= PALETTE_FADE_STEPS; ++Iteration)
    {
        for (Index = 0; Index < ClrUsed; Index++)
        {
            Palette[Index].rgbRed = (UCHAR)
                (MainPalette[Index].rgbRed * Iteration / PALETTE_FADE_STEPS);
            Palette[Index].rgbGreen = (UCHAR)
                (MainPalette[Index].rgbGreen * Iteration / PALETTE_FADE_STEPS);
            Palette[Index].rgbBlue = (UCHAR)
                (MainPalette[Index].rgbBlue * Iteration / PALETTE_FADE_STEPS);
        }

        /* Do the animation */
        InbvAcquireLock();
        VidBitBlt(PaletteBitmapBuffer, 0, 0);
        InbvReleaseLock();

        /* Wait for a bit */
        KeDelayExecutionThread(KernelMode, FALSE, &Delay);
    }
}

Referenced by DisplayBootBitmap().

DisplayBootBitmap()

INIT_FUNCTION VOID NTAPI DisplayBootBitmap

(

IN BOOLEAN

TextMode

)

Definition at line 1085 of file inbv.c.

{
    PVOID BootCopy = NULL, BootProgress = NULL, BootLogo = NULL, Header = NULL, Footer = NULL;

#ifdef INBV_ROTBAR_IMPLEMENTED
    UCHAR Buffer[24 * 9];
    PVOID Bar = NULL, LineBmp = NULL;
    ROT_BAR_TYPE TempRotBarSelection = RB_UNSPECIFIED;
    NTSTATUS Status;
    HANDLE ThreadHandle = NULL;
#endif

#ifdef REACTOS_SKUS
    PVOID Text = NULL;
#endif

#ifdef INBV_ROTBAR_IMPLEMENTED
    /* Check if the animation thread has already been created */
    if (RotBarThreadActive)
    {
        /* Yes, just reset the progress bar but keep the thread alive */
        InbvAcquireLock();
        RotBarSelection = RB_UNSPECIFIED;
        InbvReleaseLock();
    }
#endif

    ShowProgressBar = FALSE;

    /* Check if this is text mode */
    if (TextMode)
    {
        /*
         * Make the kernel resource section temporarily writable,
         * as we are going to change the bitmaps' palette in place.
         */
        MmChangeKernelResourceSectionProtection(MM_READWRITE);

        /* Check the type of the OS: workstation or server */
        if (SharedUserData->NtProductType == NtProductWinNt)
        {
            /* Workstation; set colors */
            InbvSetTextColor(15);
            InbvSolidColorFill(0, 0, SCREEN_WIDTH-1, SCREEN_HEIGHT-1, 7);
            InbvSolidColorFill(0, 421, SCREEN_WIDTH-1, SCREEN_HEIGHT-1, 1);

            /* Get resources */
            Header = InbvGetResourceAddress(IDB_WKSTA_HEADER);
            Footer = InbvGetResourceAddress(IDB_WKSTA_FOOTER);
        }
        else
        {
            /* Server; set colors */
            InbvSetTextColor(14);
            InbvSolidColorFill(0, 0, SCREEN_WIDTH-1, SCREEN_HEIGHT-1, 6);
            InbvSolidColorFill(0, 421, SCREEN_WIDTH-1, SCREEN_HEIGHT-1, 1);

            /* Get resources */
            Header = InbvGetResourceAddress(IDB_SERVER_HEADER);
            Footer = InbvGetResourceAddress(IDB_SERVER_FOOTER);
        }

        /* Set the scrolling region */
        InbvSetScrollRegion(32, 80, 631, 400);

        /* Make sure we have resources */
        if (Header && Footer)
        {
            /* BitBlt them on the screen */
            BitBltAligned(Footer,
                          TRUE,
                          AL_HORIZONTAL_CENTER,
                          AL_VERTICAL_BOTTOM,
                          0, 0, 0, 59);
            BitBltAligned(Header,
                          FALSE,
                          AL_HORIZONTAL_CENTER,
                          AL_VERTICAL_TOP,
                          0, 0, 0, 0);
        }

        /* Restore the kernel resource section protection to be read-only */
        MmChangeKernelResourceSectionProtection(MM_READONLY);
    }
    else
    {
        /* Is the boot driver installed? */
        if (!InbvBootDriverInstalled) return;

        /*
         * Make the kernel resource section temporarily writable,
         * as we are going to change the bitmaps' palette in place.
         */
        MmChangeKernelResourceSectionProtection(MM_READWRITE);

        /* Load boot screen logo */
        BootLogo = InbvGetResourceAddress(IDB_LOGO_DEFAULT);

#ifdef REACTOS_SKUS
        Text = NULL;
        if (SharedUserData->NtProductType == NtProductWinNt)
        {
#ifdef INBV_ROTBAR_IMPLEMENTED
            /* Workstation product, use appropriate status bar color */
            Bar = InbvGetResourceAddress(IDB_BAR_WKSTA);
#endif
        }
        else
        {
            /* Display correct branding based on server suite */
            if (ExVerifySuite(StorageServer))
            {
                /* Storage Server Edition */
                Text = InbvGetResourceAddress(IDB_STORAGE_SERVER);
            }
            else if (ExVerifySuite(ComputeServer))
            {
                /* Compute Cluster Edition */
                Text = InbvGetResourceAddress(IDB_CLUSTER_SERVER);
            }
            else
            {
                /* Normal edition */
                Text = InbvGetResourceAddress(IDB_SERVER_LOGO);
            }

#ifdef INBV_ROTBAR_IMPLEMENTED
            /* Server product, use appropriate status bar color */
            Bar = InbvGetResourceAddress(IDB_BAR_DEFAULT);
#endif
        }
#else
        /* Use default status bar */
        Bar = InbvGetResourceAddress(IDB_BAR_WKSTA);
#endif

        /* Make sure we have a logo */
        if (BootLogo)
        {
            /* Save the main image palette for implementing the fade-in effect */
            PBITMAPINFOHEADER BitmapInfoHeader = BootLogo;
            LPRGBQUAD Palette = (LPRGBQUAD)((PUCHAR)BootLogo + BitmapInfoHeader->biSize);
            RtlCopyMemory(MainPalette, Palette, sizeof(MainPalette));

            /* Draw the logo at the center of the screen */
            BitBltAligned(BootLogo,
                          TRUE,
                          AL_HORIZONTAL_CENTER,
                          AL_VERTICAL_CENTER,
                          0, 0, 0, 34);

#ifdef INBV_ROTBAR_IMPLEMENTED
            /* Choose progress bar */
            TempRotBarSelection = ROT_BAR_DEFAULT_MODE;
#endif

            /* Set progress bar coordinates and display it */
            InbvSetProgressBarCoordinates(259, 352);

#ifdef REACTOS_SKUS
            /* Check for non-workstation products */
            if (SharedUserData->NtProductType != NtProductWinNt)
            {
                /* Overwrite part of the logo for a server product */
                InbvScreenToBufferBlt(Buffer, 413, 237, 7, 7, 8);
                InbvSolidColorFill(418, 230, 454, 256, 0);
                InbvBufferToScreenBlt(Buffer, 413, 237, 7, 7, 8);

                /* In setup mode, you haven't selected a SKU yet */
                if (ExpInTextModeSetup) Text = NULL;
            }
#endif
        }

        /* Load and draw progress bar bitmap */
        BootProgress = InbvGetResourceAddress(IDB_PROGRESS_BAR);
        BitBltAligned(BootProgress,
                      TRUE,
                      AL_HORIZONTAL_CENTER,
                      AL_VERTICAL_CENTER,
                      0, 118, 0, 0);

        /* Load and draw copyright text bitmap */
        BootCopy = InbvGetResourceAddress(IDB_COPYRIGHT);
        BitBltAligned(BootCopy,
                      TRUE,
                      AL_HORIZONTAL_LEFT,
                      AL_VERTICAL_BOTTOM,
                      22, 0, 0, 20);

#ifdef REACTOS_SKUS
        /* Draw the SKU text if it exits */
        if (Text) BitBltPalette(Text, TRUE, 180, 121);
#endif

#ifdef INBV_ROTBAR_IMPLEMENTED
        if (Bar)
        {
            /* Save previous screen pixels to buffer */
            InbvScreenToBufferBlt(Buffer, 0, 0, 22, 9, 24);
            /* Draw the progress bar bit */
            InbvBitBlt(Bar, 0, 0);
            /* Store it in global buffer */
            InbvScreenToBufferBlt(RotBarBuffer, 0, 0, 22, 9, 24);
            /* Restore screen pixels */
            InbvBufferToScreenBlt(Buffer, 0, 0, 22, 9, 24);
        }

        /*
         * Add a rotating bottom horizontal bar when using a progress bar,
         * to show that ReactOS can be still alive when the bar does not
         * appear to progress.
         */
        if (TempRotBarSelection == RB_PROGRESS_BAR)
        {
            LineBmp = InbvGetResourceAddress(IDB_ROTATING_LINE);
            if (LineBmp)
            {
                /* Draw the line and store it in global buffer */
                BitBltPalette(LineBmp, TRUE, 0, SCREEN_HEIGHT-6);
                InbvScreenToBufferBlt(RotLineBuffer, 0, SCREEN_HEIGHT-6, SCREEN_WIDTH, 6, SCREEN_WIDTH);
            }
        }
        else
        {
            /* Hide the simple progress bar if not used */
            ShowProgressBar = FALSE;
        }
#endif

        /* Restore the kernel resource section protection to be read-only */
        MmChangeKernelResourceSectionProtection(MM_READONLY);

        /* Display the boot logo and fade it in */
        BootLogoFadeIn();

#ifdef INBV_ROTBAR_IMPLEMENTED
        if (!RotBarThreadActive && TempRotBarSelection != RB_UNSPECIFIED)
        {
            /* Start the animation thread */
            Status = PsCreateSystemThread(&ThreadHandle,
                                          0,
                                          NULL,
                                          NULL,
                                          NULL,
                                          InbvRotationThread,
                                          NULL);
            if (NT_SUCCESS(Status))
            {
                /* The thread has started, close the handle as we don't need it */
                RotBarThreadActive = TRUE;
                ObCloseHandle(ThreadHandle, KernelMode);
            }
        }
#endif

        /* Set filter which will draw text display if needed */
        InbvInstallDisplayStringFilter(DisplayFilter);
    }

#ifdef INBV_ROTBAR_IMPLEMENTED
    /* Do we have the animation thread? */
    if (RotBarThreadActive)
    {
        /* We do, initialize the progress bar */
        InbvAcquireLock();
        RotBarSelection = TempRotBarSelection;
        InbvRotBarInit();
        InbvReleaseLock();
    }
#endif
}

Referenced by DisplayFilter(), and Phase1InitializationDiscard().

DisplayFilter()

INIT_FUNCTION VOID NTAPI DisplayFilter

(

PCHAR *

String

)

Definition at line 1361 of file inbv.c.

{
    /* Windows hack to skip first dots */
    static BOOLEAN DotHack = TRUE;

    /* If "." is given set *String to empty string */
    if (DotHack && strcmp(*String, ".") == 0)
        *String = "";

    if (**String)
    {
        /* Remove the filter */
        InbvInstallDisplayStringFilter(NULL);

        DotHack = FALSE;

        /* Draw text screen */
        DisplayBootBitmap(TRUE);
    }
}

Referenced by DisplayBootBitmap().

FinalizeBootLogo()

INIT_FUNCTION VOID NTAPI FinalizeBootLogo

(

VOID

)

Definition at line 1385 of file inbv.c.

{
    /* Acquire lock and check the display state */
    InbvAcquireLock();
    if (InbvGetDisplayState() == INBV_DISPLAY_STATE_OWNED)
    {
        /* Clear the screen */
        VidSolidColorFill(0, 0, SCREEN_WIDTH-1, SCREEN_HEIGHT-1, 0);
    }

    /* Reset progress bar and lock */
#ifdef INBV_ROTBAR_IMPLEMENTED
    PltRotBarStatus = RBS_STOP_ANIMATE;
    RotBarThreadActive = FALSE;
#endif
    InbvReleaseLock();
}

Referenced by Phase1InitializationDiscard().

FindBitmapResource()

INIT_FUNCTION PVOID NTAPI FindBitmapResource	(	IN PLOADER_PARAMETER_BLOCK	LoaderBlock,
		IN ULONG	ResourceId
	)

Definition at line 356 of file inbv.c.

{
    UNICODE_STRING UpString = RTL_CONSTANT_STRING(L"ntoskrnl.exe");
    UNICODE_STRING MpString = RTL_CONSTANT_STRING(L"ntkrnlmp.exe");
    PLIST_ENTRY NextEntry, ListHead;
    PLDR_DATA_TABLE_ENTRY LdrEntry;
    PIMAGE_RESOURCE_DATA_ENTRY ResourceDataEntry;
    LDR_RESOURCE_INFO ResourceInfo;
    NTSTATUS Status;
    PVOID Data = NULL;

    /* Loop the driver list */
    ListHead = &LoaderBlock->LoadOrderListHead;
    NextEntry = ListHead->Flink;
    while (NextEntry != ListHead)
    {
        /* Get the entry */
        LdrEntry = CONTAINING_RECORD(NextEntry,
                                     LDR_DATA_TABLE_ENTRY,
                                     InLoadOrderLinks);

        /* Check for a match */
        if (RtlEqualUnicodeString(&LdrEntry->BaseDllName, &UpString, TRUE) ||
            RtlEqualUnicodeString(&LdrEntry->BaseDllName, &MpString, TRUE))
        {
            /* Break out */
            break;
        }
    }

    /* Check if we found it */
    if (NextEntry != ListHead)
    {
        /* Try to find the resource */
        ResourceInfo.Type = 2; // RT_BITMAP;
        ResourceInfo.Name = ResourceId;
        ResourceInfo.Language = 0;
        Status = LdrFindResource_U(LdrEntry->DllBase,
                                   &ResourceInfo,
                                   RESOURCE_DATA_LEVEL,
                                   &ResourceDataEntry);
        if (NT_SUCCESS(Status))
        {
            /* Access the resource */
            ULONG Size = 0;
            Status = LdrAccessResource(LdrEntry->DllBase,
                                       ResourceDataEntry,
                                       &Data,
                                       &Size);
            if ((Data) && (ResourceId < 3))
            {
                KiBugCheckData[4] ^= RtlComputeCrc32(0, Data, Size);
            }
            if (!NT_SUCCESS(Status)) Data = NULL;
        }
    }

    /* Return the pointer */
    return Data;
}

Referenced by InbvDriverInitialize().

InbvAcquireDisplayOwnership()

VOID NTAPI InbvAcquireDisplayOwnership

(

VOID

)

Definition at line 531 of file inbv.c.

{
    /* Check if we have a callback and we're just acquiring it now */
    if ((InbvResetDisplayParameters) &&
        (InbvDisplayState == INBV_DISPLAY_STATE_LOST))
    {
        /* Call the callback */
        InbvResetDisplayParameters(80, 50);
    }

    /* Acquire the display */
    InbvDisplayState = INBV_DISPLAY_STATE_OWNED;
}

Referenced by HalHandleNMI(), HalReturnToFirmware(), KdpScreenAcquire(), KiDisplayBlueScreen(), and PopShutdownHandler().

InbvAcquireLock()

VOID NTAPI InbvAcquireLock

(

VOID

)

Definition at line 462 of file inbv.c.

{
    KIRQL OldIrql;

    /* Check if we're at dispatch level or lower */
    OldIrql = KeGetCurrentIrql();
    if (OldIrql <= DISPATCH_LEVEL)
    {
        /* Loop until the lock is free */
        while (!KeTestSpinLock(&BootDriverLock));

        /* Raise IRQL to dispatch level */
        KeRaiseIrql(DISPATCH_LEVEL, &OldIrql);
    }

    /* Acquire the lock */
    KiAcquireSpinLock(&BootDriverLock);
    InbvOldIrql = OldIrql;
}

Referenced by BootLogoFadeIn(), DisplayBootBitmap(), FinalizeBootLogo(), InbvBitBlt(), InbvDisplayString(), InbvEnableBootDriver(), InbvNotifyDisplayOwnershipLost(), InbvRotationThread(), InbvSolidColorFill(), and InbvUpdateProgressBar().

InbvBitBlt()

VOID NTAPI InbvBitBlt	(	IN PUCHAR	Buffer,
		IN ULONG	X,
		IN ULONG	Y
	)

Definition at line 813 of file inbv.c.

{
    /* Check if we're installed and we own it */
    if (InbvBootDriverInstalled &&
        (InbvDisplayState == INBV_DISPLAY_STATE_OWNED))
    {
        /* Acquire the lock */
        InbvAcquireLock();

        /* Do the blit */
        VidBitBlt(Buffer, X, Y);

        /* Release the lock */
        InbvReleaseLock();
    }
}

Referenced by BitBltPalette(), DisplayBootBitmap(), and PopShutdownHandler().

InbvBufferToScreenBlt()

VOID NTAPI InbvBufferToScreenBlt	(	IN PUCHAR	Buffer,
		IN ULONG	X,
		IN ULONG	Y,
		IN ULONG	Width,
		IN ULONG	Height,
		IN ULONG	Delta
	)

Definition at line 795 of file inbv.c.

{
    /* Check if we're installed and we own it */
    if (InbvBootDriverInstalled &&
        (InbvDisplayState == INBV_DISPLAY_STATE_OWNED))
    {
        /* Do the blit */
        VidBufferToScreenBlt(Buffer, X, Y, Width, Height, Delta);
    }
}

Referenced by DisplayBootBitmap().

InbvCheckDisplayOwnership()

BOOLEAN NTAPI InbvCheckDisplayOwnership

(

VOID

)

Definition at line 556 of file inbv.c.

{
    /* Return if we own it or not */
    return InbvDisplayState != INBV_DISPLAY_STATE_LOST;
}

Referenced by InbvMonitorThread(), KdpScreenRelease(), and PopShutdownHandler().

InbvDisplayString()

BOOLEAN NTAPI InbvDisplayString

(

IN PCHAR

String

)

Definition at line 572 of file inbv.c.

{
    /* Make sure we own the display */
    if (InbvDisplayState == INBV_DISPLAY_STATE_OWNED)
    {
        /* If we're not allowed, return success anyway */
        if (!InbvDisplayDebugStrings) return TRUE;

        /* Check if a filter is installed */
        if (InbvDisplayFilter) InbvDisplayFilter(&String);

        /* Acquire the lock */
        InbvAcquireLock();

        /* Make sure we're installed and display the string */
        if (InbvBootDriverInstalled) VidDisplayString((PUCHAR)String);

        /* Print the string on the EMS port */
        HeadlessDispatch(HeadlessCmdPutString,
                         String,
                         strlen(String) + sizeof(ANSI_NULL),
                         NULL,
                         NULL);

        /* Release the lock */
        InbvReleaseLock();

        /* All done */
        return TRUE;
    }

    /* We don't own it, fail */
    return FALSE;
}

Referenced by HalDisplayString(), HalHandleNMI(), KeBugCheckWithTf(), KeGetBugMessageText(), KiDisplayBlueScreen(), KiDumpParameterImages(), NtDisplayString(), Phase1InitializationDiscard(), and PopShutdownHandler().

InbvDriverInitialize()

INIT_FUNCTION BOOLEAN NTAPI InbvDriverInitialize	(	IN PLOADER_PARAMETER_BLOCK	LoaderBlock,
		IN ULONG	Count
	)

Definition at line 421 of file inbv.c.

{
    PCHAR CommandLine;
    BOOLEAN ResetMode = FALSE; // By default do not reset the video mode
    ULONG i;

    /* Quit if we're already installed */
    if (InbvBootDriverInstalled) return TRUE;

    /* Initialize the lock and check the current display state */
    KeInitializeSpinLock(&BootDriverLock);
    if (InbvDisplayState == INBV_DISPLAY_STATE_OWNED)
    {
        /* Reset the video mode in case we do not have a custom boot logo */
        CommandLine = (LoaderBlock->LoadOptions ? _strupr(LoaderBlock->LoadOptions) : NULL);
        ResetMode   = (CommandLine == NULL) || (strstr(CommandLine, "BOOTLOGO") == NULL);
    }

    /* Initialize the video */
    InbvBootDriverInstalled = VidInitialize(ResetMode);
    if (InbvBootDriverInstalled)
    {
        /* Find bitmap resources in the kernel */
        ResourceCount = min(Count, RTL_NUMBER_OF(ResourceList) - 1);
        for (i = 1; i <= ResourceCount; i++)
        {
            /* Do the lookup */
            ResourceList[i] = FindBitmapResource(LoaderBlock, i);
        }

        /* Set the progress bar ranges */
        InbvSetProgressBarSubset(0, 100);
    }

    /* Return install state */
    return InbvBootDriverInstalled;
}

Referenced by Phase1InitializationDiscard().

InbvEnableBootDriver()

VOID NTAPI InbvEnableBootDriver

(

IN BOOLEAN

Enable

)

Definition at line 500 of file inbv.c.

{
    /* Check if we're installed */
    if (InbvBootDriverInstalled)
    {
        /* Check for lost state */
        if (InbvDisplayState >= INBV_DISPLAY_STATE_LOST) return;

        /* Acquire the lock */
        InbvAcquireLock();

        /* Cleanup the screen if we own it */
        if (InbvDisplayState == INBV_DISPLAY_STATE_OWNED) VidCleanUp();

        /* Set the new display state */
        InbvDisplayState = Enable ? INBV_DISPLAY_STATE_OWNED :
                                    INBV_DISPLAY_STATE_DISABLED;

        /* Release the lock */
        InbvReleaseLock();
    }
    else
    {
        /* Set the new display state */
        InbvDisplayState = Enable ? INBV_DISPLAY_STATE_OWNED :
                                    INBV_DISPLAY_STATE_DISABLED;
    }
}

Referenced by Phase1InitializationDiscard().

InbvEnableDisplayString()

BOOLEAN NTAPI InbvEnableDisplayString

(

IN BOOLEAN

Enable

)

Definition at line 609 of file inbv.c.

{
    BOOLEAN OldSetting;

    /* Get the old setting */
    OldSetting = InbvDisplayDebugStrings;

    /* Update it */
    InbvDisplayDebugStrings = Enable;

    /* Return the old setting */
    return OldSetting;
}

Referenced by HalHandleNMI(), KdpScreenAcquire(), KiDisplayBlueScreen(), Phase1InitializationDiscard(), and PopShutdownHandler().

InbvGetDisplayState()

INBV_DISPLAY_STATE NTAPI InbvGetDisplayState

(

VOID

)

Definition at line 564 of file inbv.c.

{
    /* Return the actual state */
    return InbvDisplayState;
}

Referenced by FinalizeBootLogo().

InbvGetResourceAddress()

PUCHAR NTAPI InbvGetResourceAddress

(

IN ULONG

ResourceNumber

)

Definition at line 904 of file inbv.c.

{
    /* Validate the resource number */
    if (ResourceNumber > ResourceCount) return NULL;

    /* Return the address */
    return ResourceList[ResourceNumber];
}

Referenced by DisplayBootBitmap(), and PopShutdownHandler().

InbvIndicateProgress()

INIT_FUNCTION VOID NTAPI InbvIndicateProgress

(

VOID

)

Definition at line 883 of file inbv.c.

{
    ULONG Percentage;

    /* Increase progress */
    InbvProgressIndicator.Count++;

    /* Compute new percentage */
    Percentage = min(100 * InbvProgressIndicator.Count /
                           InbvProgressIndicator.Expected,
                     99);
    if (Percentage != InbvProgressIndicator.Percentage)
    {
        /* Percentage has moved, update the progress bar */
        InbvProgressIndicator.Percentage = Percentage;
        InbvUpdateProgressBar(Percentage);
    }
}

Referenced by IopInitializeBuiltinDriver(), and IopInitializeSystemDrivers().

InbvInstallDisplayStringFilter()

VOID NTAPI InbvInstallDisplayStringFilter

(

IN INBV_DISPLAY_STRING_FILTER

Filter

)

Definition at line 625 of file inbv.c.

{
    /* Save the filter */
    InbvDisplayFilter = Filter;
}

Referenced by DisplayBootBitmap(), DisplayFilter(), HalHandleNMI(), KdpScreenAcquire(), and KiDisplayBlueScreen().

InbvIsBootDriverInstalled()

BOOLEAN NTAPI InbvIsBootDriverInstalled

(

VOID

)

Definition at line 633 of file inbv.c.

{
    /* Return driver state */
    return InbvBootDriverInstalled;
}

Referenced by HalHandleNMI(), KdpScreenAcquire(), KdpScreenRelease(), KiDisplayBlueScreen(), and PopShutdownHandler().

InbvNotifyDisplayOwnershipLost()

VOID NTAPI InbvNotifyDisplayOwnershipLost

(

IN INBV_RESET_DISPLAY_PARAMETERS

Callback

)

Definition at line 641 of file inbv.c.

{
    /* Check if we're installed */
    if (InbvBootDriverInstalled)
    {
        /* Acquire the lock and cleanup if we own the screen */
        InbvAcquireLock();
        if (InbvDisplayState != INBV_DISPLAY_STATE_LOST) VidCleanUp();

        /* Set the reset callback and display state */
        InbvResetDisplayParameters = Callback;
        InbvDisplayState = INBV_DISPLAY_STATE_LOST;

        /* Release the lock */
        InbvReleaseLock();
    }
    else
    {
        /* Set the reset callback and display state */
        InbvResetDisplayParameters = Callback;
        InbvDisplayState = INBV_DISPLAY_STATE_LOST;
    }
}

Referenced by InbvMonitorThread(), IntVideoPortInbvCleanup(), IntVideoPortInbvInitialize(), KdpScreenRelease(), Phase1InitializationDiscard(), ScrInbvCleanup(), and ScrInbvInitialize().

InbvReleaseLock()

VOID NTAPI InbvReleaseLock

(

VOID

)

Definition at line 484 of file inbv.c.

{
    KIRQL OldIrql;

    /* Capture the old IRQL */
    OldIrql = InbvOldIrql;

    /* Release the driver lock */
    KiReleaseSpinLock(&BootDriverLock);

    /* If we were at dispatch level or lower, restore the old IRQL */
    if (InbvOldIrql <= DISPATCH_LEVEL) KeLowerIrql(OldIrql);
}

Referenced by BootLogoFadeIn(), DisplayBootBitmap(), FinalizeBootLogo(), InbvBitBlt(), InbvDisplayString(), InbvEnableBootDriver(), InbvNotifyDisplayOwnershipLost(), InbvRotationThread(), InbvSolidColorFill(), and InbvUpdateProgressBar().

InbvResetDisplay()

BOOLEAN NTAPI InbvResetDisplay

(

VOID

)

Definition at line 667 of file inbv.c.

{
    /* Check if we're installed and we own it */
    if (InbvBootDriverInstalled &&
        (InbvDisplayState == INBV_DISPLAY_STATE_OWNED))
    {
        /* Do the reset */
        VidResetDisplay(TRUE);
        return TRUE;
    }

    /* Nothing to reset */
    return FALSE;
}

Referenced by HalHandleNMI(), KdpScreenAcquire(), KiDisplayBlueScreen(), and PopShutdownHandler().

InbvRotationThread()

static VOID NTAPI InbvRotationThread ( _In_ PVOID  Context )

static

Definition at line 983 of file inbv.c.

{
    ULONG X, Y, Index, Total;
    LARGE_INTEGER Delay = {{0}};

    InbvAcquireLock();
    if (RotBarSelection == RB_SQUARE_CELLS)
    {
        Index = 0;
    }
    else
    {
        Index = 32;
    }
    X = ProgressBarLeft + 2;
    Y = ProgressBarTop + 2;
    InbvReleaseLock();

    while (InbvDisplayState == INBV_DISPLAY_STATE_OWNED)
    {
        /* Wait for a bit */
        KeDelayExecutionThread(KernelMode, FALSE, &Delay);

        InbvAcquireLock();

        /* Unknown unexpected command */
        ASSERT(PltRotBarStatus < RBS_STATUS_MAX);

        if (PltRotBarStatus == RBS_STOP_ANIMATE)
        {
            /* Stop the thread */
            InbvReleaseLock();
            break;
        }

        if (RotBarSelection == RB_SQUARE_CELLS)
        {
            Delay.QuadPart = -800000; // 80 ms
            Total = 18;
            Index %= Total;

            if (Index >= 3)
            {
                /* Fill previous bar position */
                VidSolidColorFill(X + ((Index - 3) * 8), Y, (X + ((Index - 3) * 8)) + 8 - 1, Y + 9 - 1, 0);
            }
            if (Index < Total - 1)
            {
                /* Draw the progress bar bit */
                if (Index < 2)
                {
                    /* Appearing from the left */
                    VidBufferToScreenBlt(RotBarBuffer + 8 * (2 - Index) / 2, X, Y, 22 - 8 * (2 - Index), 9, 24);
                }
                else if (Index >= Total - 3)
                {
                    /* Hiding to the right */
                    VidBufferToScreenBlt(RotBarBuffer, X + ((Index - 2) * 8), Y, 22 - 8 * (4 - (Total - Index)), 9, 24);
                }
                else
                {
                    VidBufferToScreenBlt(RotBarBuffer, X + ((Index - 2) * 8), Y, 22, 9, 24);
                }
            }
            Index++;
        }
        else if (RotBarSelection == RB_PROGRESS_BAR)
        {
            Delay.QuadPart = -600000; // 60 ms
            Total = SCREEN_WIDTH;
            Index %= Total;

            /* Right part */
            VidBufferToScreenBlt(RotLineBuffer, Index, SCREEN_HEIGHT-6, SCREEN_WIDTH - Index, 6, SCREEN_WIDTH);
            if (Index > 0)
            {
                /* Left part */
                VidBufferToScreenBlt(RotLineBuffer + (SCREEN_WIDTH - Index) / 2, 0, SCREEN_HEIGHT-6, Index - 2, 6, SCREEN_WIDTH);
            }
            Index += 32;
        }

        InbvReleaseLock();
    }

    PsTerminateSystemThread(STATUS_SUCCESS);
}

Referenced by DisplayBootBitmap().

InbvRotBarInit()

INIT_FUNCTION VOID NTAPI InbvRotBarInit

(

VOID

)

Definition at line 1075 of file inbv.c.

{
    PltRotBarStatus = RBS_FADEIN;
    /* Perform other initialization if needed */
}

Referenced by DisplayBootBitmap().

InbvScreenToBufferBlt()

VOID NTAPI InbvScreenToBufferBlt	(	IN PUCHAR	Buffer,
		IN ULONG	X,
		IN ULONG	Y,
		IN ULONG	Width,
		IN ULONG	Height,
		IN ULONG	Delta
	)

Definition at line 834 of file inbv.c.

{
    /* Check if we're installed and we own it */
    if (InbvBootDriverInstalled &&
        (InbvDisplayState == INBV_DISPLAY_STATE_OWNED))
    {
        /* Do the blit */
        VidScreenToBufferBlt(Buffer, X, Y, Width, Height, Delta);
    }
}

Referenced by DisplayBootBitmap().

InbvSetDisplayOwnership()

VOID NTAPI InbvSetDisplayOwnership

(

IN BOOLEAN

DisplayOwned

)

Definition at line 547 of file inbv.c.

{
    /* Set the new display state */
    InbvDisplayState = DisplayOwned ? INBV_DISPLAY_STATE_OWNED :
                                      INBV_DISPLAY_STATE_LOST;
}

InbvSetProgressBarCoordinates()

INIT_FUNCTION VOID NTAPI InbvSetProgressBarCoordinates	(	IN ULONG	Left,
		IN ULONG	Top
	)

Definition at line 853 of file inbv.c.

{
    /* Update the coordinates */
    ProgressBarLeft = Left;
    ProgressBarTop  = Top;

    /* Enable the progress bar */
    ShowProgressBar = TRUE;
}

Referenced by DisplayBootBitmap().

InbvSetProgressBarSubset()

INIT_FUNCTION VOID NTAPI InbvSetProgressBarSubset	(	IN ULONG	Floor,
		IN ULONG	Ceiling
	)

Definition at line 867 of file inbv.c.

{
    /* Sanity checks */
    ASSERT(Floor < Ceiling);
    ASSERT(Ceiling <= 100);

    /* Update the progress bar state */
    InbvProgressState.Floor = Floor * 100;
    InbvProgressState.Ceiling = Ceiling * 100;
    InbvProgressState.Bias = (Ceiling * 100) - Floor;
}

Referenced by InbvDriverInitialize(), and Phase1InitializationDiscard().

InbvSetScrollRegion()

VOID NTAPI InbvSetScrollRegion	(	IN ULONG	Left,
		IN ULONG	Top,
		IN ULONG	Right,
		IN ULONG	Bottom
	)

Definition at line 684 of file inbv.c.

{
    /* Just call bootvid */
    VidSetScrollRegion(Left, Top, Right, Bottom);
}

Referenced by DisplayBootBitmap(), HalHandleNMI(), KdpScreenAcquire(), KiDisplayBlueScreen(), and PopShutdownHandler().

InbvSetTextColor()

VOID NTAPI InbvSetTextColor

(

IN ULONG

Color

)

Definition at line 695 of file inbv.c.

{
    HEADLESS_CMD_SET_COLOR HeadlessSetColor;

    /* Set color for EMS port */
#ifdef INBV_HEADLESS_COLORS
    InbvTerminalTextColor = 30 + CGA_TO_ANSI_COLOR(Color);
#else
    InbvTerminalTextColor = 37;
#endif
    HeadlessSetColor.TextColor = InbvTerminalTextColor;
    HeadlessSetColor.BkgdColor = InbvTerminalBkgdColor;
    HeadlessDispatch(HeadlessCmdSetColor,
                     &HeadlessSetColor,
                     sizeof(HeadlessSetColor),
                     NULL,
                     NULL);

    /* Update the text color */
    VidSetTextColor(Color);
}

Referenced by DisplayBootBitmap(), HalHandleNMI(), KdpScreenAcquire(), and KiDisplayBlueScreen().

InbvSolidColorFill()

VOID NTAPI InbvSolidColorFill	(	IN ULONG	Left,
		IN ULONG	Top,
		IN ULONG	Right,
		IN ULONG	Bottom,
		IN ULONG	Color
	)

Definition at line 719 of file inbv.c.

{
    HEADLESS_CMD_SET_COLOR HeadlessSetColor;

    /* Make sure we own it */
    if (InbvDisplayState == INBV_DISPLAY_STATE_OWNED)
    {
        /* Acquire the lock */
        InbvAcquireLock();

        /* Check if we're installed */
        if (InbvBootDriverInstalled)
        {
            /* Call bootvid */
            VidSolidColorFill(Left, Top, Right, Bottom, (UCHAR)Color);
        }

        /* Set color for EMS port and clear display */
#ifdef INBV_HEADLESS_COLORS
        InbvTerminalBkgdColor = 40 + CGA_TO_ANSI_COLOR(Color);
#else
        InbvTerminalBkgdColor = 40;
#endif
        HeadlessSetColor.TextColor = InbvTerminalTextColor;
        HeadlessSetColor.BkgdColor = InbvTerminalBkgdColor;
        HeadlessDispatch(HeadlessCmdSetColor,
                         &HeadlessSetColor,
                         sizeof(HeadlessSetColor),
                         NULL,
                         NULL);
        HeadlessDispatch(HeadlessCmdClearDisplay,
                         NULL, 0,
                         NULL, NULL);

        /* Release the lock */
        InbvReleaseLock();
    }
}

Referenced by DisplayBootBitmap(), HalHandleNMI(), KdpScreenAcquire(), KiDisplayBlueScreen(), and PopShutdownHandler().

InbvUpdateProgressBar()

INIT_FUNCTION VOID NTAPI InbvUpdateProgressBar

(

IN ULONG

Progress

)

Definition at line 765 of file inbv.c.

{
    ULONG FillCount, BoundedProgress;

    /* Make sure the progress bar is enabled, that we own and are installed */
    if (ShowProgressBar &&
        InbvBootDriverInstalled &&
        (InbvDisplayState == INBV_DISPLAY_STATE_OWNED))
    {
        /* Compute fill count */
        BoundedProgress = (InbvProgressState.Floor / 100) + Progress;
        FillCount = 121 * (InbvProgressState.Bias * BoundedProgress) / 1000000;

        /* Acquire the lock */
        InbvAcquireLock();

        /* Fill the progress bar */
        VidSolidColorFill(ProgressBarLeft,
                          ProgressBarTop,
                          ProgressBarLeft + FillCount,
                          ProgressBarTop + 12,
                          15);

        /* Release the lock */
        InbvReleaseLock();
    }
}

Referenced by InbvIndicateProgress(), and Phase1InitializationDiscard().

NtDisplayString()

NTSTATUS NTAPI NtDisplayString

(

IN PUNICODE_STRING

DisplayString

)

Definition at line 915 of file inbv.c.

{
    NTSTATUS Status;
    UNICODE_STRING CapturedString;
    OEM_STRING OemString;
    ULONG OemLength;
    KPROCESSOR_MODE PreviousMode;

    PAGED_CODE();

    PreviousMode = ExGetPreviousMode();

    /* We require the TCB privilege */
    if (!SeSinglePrivilegeCheck(SeTcbPrivilege, PreviousMode))
        return STATUS_PRIVILEGE_NOT_HELD;

    /* Capture the string */
    Status = ProbeAndCaptureUnicodeString(&CapturedString, PreviousMode, DisplayString);
    if (!NT_SUCCESS(Status))
        return Status;

    /* Do not display the string if it is empty */
    if (CapturedString.Length == 0 || CapturedString.Buffer == NULL)
    {
        Status = STATUS_SUCCESS;
        goto Quit;
    }

    /*
     * Convert the string since INBV understands only ANSI/OEM. Allocate the
     * string buffer in non-paged pool because INBV passes it down to BOOTVID.
     * We cannot perform the allocation using RtlUnicodeStringToOemString()
     * since its allocator uses PagedPool.
     */
    OemLength = RtlUnicodeStringToOemSize(&CapturedString);
    if (OemLength > MAXUSHORT)
    {
        Status = STATUS_BUFFER_OVERFLOW;
        goto Quit;
    }
    RtlInitEmptyAnsiString((PANSI_STRING)&OemString, NULL, (USHORT)OemLength);
    OemString.Buffer = ExAllocatePoolWithTag(NonPagedPool, OemLength, TAG_OSTR);
    if (OemString.Buffer == NULL)
    {
        Status = STATUS_NO_MEMORY;
        goto Quit;
    }
    RtlUnicodeStringToOemString(&OemString, &CapturedString, FALSE);

    /* Display the string */
    InbvDisplayString(OemString.Buffer);

    /* Free the string buffer */
    ExFreePoolWithTag(OemString.Buffer, TAG_OSTR);

    Status = STATUS_SUCCESS;

Quit:
    /* Free the captured string */
    ReleaseCapturedUnicodeString(&CapturedString, PreviousMode);

    return Status;
}

Variable Documentation

BootDriverLock

KSPIN_LOCK BootDriverLock

static

Definition at line 84 of file inbv.c.

Referenced by InbvAcquireLock(), InbvDriverInitialize(), and InbvReleaseLock().

InbvBootDriverInstalled

BOOLEAN InbvBootDriverInstalled = FALSE

Definition at line 87 of file inbv.c.

Referenced by BootLogoFadeIn(), DisplayBootBitmap(), InbvBitBlt(), InbvBufferToScreenBlt(), InbvDisplayString(), InbvDriverInitialize(), InbvEnableBootDriver(), InbvIsBootDriverInstalled(), InbvNotifyDisplayOwnershipLost(), InbvResetDisplay(), InbvScreenToBufferBlt(), InbvSolidColorFill(), InbvUpdateProgressBar(), and Phase1InitializationDiscard().

InbvDisplayDebugStrings

BOOLEAN InbvDisplayDebugStrings = FALSE

static

Definition at line 88 of file inbv.c.

Referenced by InbvDisplayString(), and InbvEnableDisplayString().

InbvDisplayFilter

INBV_DISPLAY_STRING_FILTER InbvDisplayFilter = NULL

static

Definition at line 89 of file inbv.c.

Referenced by InbvDisplayString(), and InbvInstallDisplayStringFilter().

InbvDisplayState

INBV_DISPLAY_STATE InbvDisplayState = INBV_DISPLAY_STATE_DISABLED

static

Definition at line 86 of file inbv.c.

Referenced by BootLogoFadeIn(), InbvAcquireDisplayOwnership(), InbvBitBlt(), InbvBufferToScreenBlt(), InbvCheckDisplayOwnership(), InbvDisplayString(), InbvDriverInitialize(), InbvEnableBootDriver(), InbvGetDisplayState(), InbvNotifyDisplayOwnershipLost(), InbvResetDisplay(), InbvRotationThread(), InbvScreenToBufferBlt(), InbvSetDisplayOwnership(), InbvSolidColorFill(), and InbvUpdateProgressBar().

InbvOldIrql

KIRQL InbvOldIrql

static

Definition at line 85 of file inbv.c.

Referenced by InbvAcquireLock(), and InbvReleaseLock().

InbvProgressIndicator

BT_PROGRESS_INDICATOR InbvProgressIndicator = {0, 25, 0}

static

Definition at line 93 of file inbv.c.

Referenced by InbvIndicateProgress().

InbvProgressState

INBV_PROGRESS_STATE InbvProgressState

static

Definition at line 92 of file inbv.c.

Referenced by InbvSetProgressBarSubset(), and InbvUpdateProgressBar().

InbvResetDisplayParameters

INBV_RESET_DISPLAY_PARAMETERS InbvResetDisplayParameters = NULL

static

Definition at line 94 of file inbv.c.

Referenced by InbvAcquireDisplayOwnership(), and InbvNotifyDisplayOwnershipLost().

InbvTerminalBkgdColor

ULONG InbvTerminalBkgdColor = 40

static

Definition at line 162 of file inbv.c.

Referenced by InbvSetTextColor(), and InbvSolidColorFill().

InbvTerminalTextColor

ULONG InbvTerminalTextColor = 37

static

Definition at line 161 of file inbv.c.

Referenced by InbvSetTextColor(), and InbvSolidColorFill().

MainPalette

RGBQUAD MainPalette[16]

static

Definition at line 177 of file inbv.c.

Referenced by BitBltPalette(), BootLogoFadeIn(), and DisplayBootBitmap().

PltRotBarStatus

ROT_BAR_STATUS PltRotBarStatus = 0

static

Definition at line 121 of file inbv.c.

Referenced by FinalizeBootLogo(), InbvRotationThread(), and InbvRotBarInit().

ProgressBarLeft

ULONG ProgressBarLeft = 0

static

Definition at line 90 of file inbv.c.

Referenced by InbvRotationThread(), InbvSetProgressBarCoordinates(), and InbvUpdateProgressBar().

ProgressBarTop

ULONG ProgressBarTop = 0

static

Definition at line 90 of file inbv.c.

Referenced by InbvRotationThread(), InbvSetProgressBarCoordinates(), and InbvUpdateProgressBar().

ResourceCount

ULONG ResourceCount = 0

static

Definition at line 95 of file inbv.c.

Referenced by HalpAssignPCISlotResources(), InbvDriverInitialize(), InbvGetResourceAddress(), IntVideoPortPnPStartDevice(), LdrEnumResources(), NdisIPnPStartDevice(), PcNewResourceList(), Test_Data(), and Test_Parameters().

ResourceList

PUCHAR ResourceList[1+IDB_MAX_RESOURCE]

static

Definition at line 96 of file inbv.c.

Referenced by InbvDriverInitialize(), and InbvGetResourceAddress().

RotBarBuffer

UCHAR RotBarBuffer[24 *9]

static

Definition at line 122 of file inbv.c.

Referenced by DisplayBootBitmap(), and InbvRotationThread().

RotBarSelection

ROT_BAR_TYPE RotBarSelection = RB_UNSPECIFIED

static

Definition at line 120 of file inbv.c.

Referenced by DisplayBootBitmap(), and InbvRotationThread().

RotBarThreadActive

BOOLEAN RotBarThreadActive = FALSE

static

Definition at line 119 of file inbv.c.

Referenced by DisplayBootBitmap(), and FinalizeBootLogo().

RotLineBuffer

UCHAR RotLineBuffer[SCREEN_WIDTH *6]

static

Definition at line 123 of file inbv.c.

Referenced by DisplayBootBitmap(), and InbvRotationThread().

ShowProgressBar

BOOLEAN ShowProgressBar = FALSE

static

Definition at line 91 of file inbv.c.

Referenced by DisplayBootBitmap(), InbvSetProgressBarCoordinates(), and InbvUpdateProgressBar().