guicons.c File Reference

#include "bl.h"

Include dependency graph for guicons.c:

Go to the source code of this file.

Functions
NTSTATUS	ConsoleGraphicalSetTextState (_In_ PBL_GRAPHICS_CONSOLE Console, _In_ ULONG Mask, _In_ PBL_DISPLAY_STATE TextState)
NTSTATUS	ConsoleGraphicalConstruct (_In_ PBL_GRAPHICS_CONSOLE GraphicsConsole)
VOID	ConsolepClearBuffer (_In_ PUCHAR FrameBuffer, _In_ ULONG Width, _In_ PUCHAR FillColor, _In_ ULONG Height, _In_ ULONG ScanlineWidth, _In_ ULONG PixelDepth)
NTSTATUS	ConsolepConvertColorToPixel (_In_ BL_COLOR Color, _Out_ PUCHAR Pixel)
NTSTATUS	ConsoleGraphicalClearPixels (_In_ PBL_GRAPHICS_CONSOLE Console, _In_ ULONG Color)
NTSTATUS	ConsoleGraphicalClearText (_In_ PBL_GRAPHICS_CONSOLE Console, _In_ BOOLEAN LineOnly)
BOOLEAN	ConsoleGraphicalIsEnabled (_In_ PBL_GRAPHICS_CONSOLE Console)
VOID	ConsoleGraphicalDestruct (_In_ PBL_GRAPHICS_CONSOLE Console)
NTSTATUS	ConsoleGraphicalReinitialize (_In_ PBL_GRAPHICS_CONSOLE Console)
NTSTATUS	ConsoleGraphicalEnable (_In_ PBL_GRAPHICS_CONSOLE Console, _In_ BOOLEAN Enable)
NTSTATUS	ConsoleGraphicalGetGraphicalResolution (_In_ PBL_GRAPHICS_CONSOLE Console, _In_ PBL_DISPLAY_MODE DisplayMode)
NTSTATUS	ConsoleGraphicalGetOriginalResolution (_In_ PBL_GRAPHICS_CONSOLE Console, _In_ PBL_DISPLAY_MODE DisplayMode)

Variables
BL_GRAPHICS_CONSOLE_VTABLE	ConsoleGraphicalVtbl

Function Documentation

ConsoleGraphicalClearPixels()

NTSTATUS ConsoleGraphicalClearPixels	(	_In_ PBL_GRAPHICS_CONSOLE	Console,
		_In_ ULONG	Color
	)

Definition at line 275 of file guicons.c.

{
    NTSTATUS Status;
 
    /* Check if the text console is active */
    if (Console->TextConsole.Active)
    {
        /* We shouldn't be here */
        Status = STATUS_UNSUCCESSFUL;
    }
    else
    {
        /* Clear it in graphics mode */
        Status = ConsoleFirmwareGraphicalClear(Console, Color);
    }
 
    /* All good */
    return Status;
}

Referenced by BfClearScreen().

ConsoleGraphicalClearText()

NTSTATUS ConsoleGraphicalClearText	(	_In_ PBL_GRAPHICS_CONSOLE	Console,
		_In_ BOOLEAN	LineOnly
	)

Definition at line 299 of file guicons.c.

{
    /* Is the text console active? */
    if (Console->TextConsole.Active)
    {
        /* Let firmware clear do it */
        return ConsoleFirmwareTextClear(&Console->TextConsole, LineOnly);
    }
 
    /* Are we clearing a line only? */
    if (LineOnly)
    {
        return BfClearToEndOfLine(Console);
    }
 
    /* Nope -- the whole screen */
    return BfClearScreen(Console);
}

ConsoleGraphicalConstruct()

NTSTATUS ConsoleGraphicalConstruct

(

_In_ PBL_GRAPHICS_CONSOLE

GraphicsConsole

)

Definition at line 58 of file guicons.c.

{
    NTSTATUS Status;
 
    /* Create a text console */
    Status = ConsoleTextLocalConstruct(&GraphicsConsole->TextConsole, FALSE);
    if (!NT_SUCCESS(Status))
    {
        EfiPrintf(L"Text failed: %lx\r\n", Status);
        return Status;
    }
 
    /* But overwrite its callbacks with ours */
    GraphicsConsole->TextConsole.Callbacks = &ConsoleGraphicalVtbl.Text;
 
    /* Try to create a GOP console */
    Status = ConsoleEfiGraphicalOpenProtocol(GraphicsConsole, BlGopConsole);
    if (!NT_SUCCESS(Status))
    {
        /* That failed, try an older EFI 1.02 UGA console */
        EfiPrintf(L"GOP open failed!\r\n", Status);
        Status = ConsoleEfiGraphicalOpenProtocol(GraphicsConsole, BlUgaConsole);
        if (!NT_SUCCESS(Status))
        {
            /* That failed too, give up */
            EfiPrintf(L"UGA failed!\r\n", Status);
            ConsoleTextLocalDestruct(&GraphicsConsole->TextConsole);
            return STATUS_UNSUCCESSFUL;
        }
    }
 
    /* Enable the console */
    Status = ConsoleFirmwareGraphicalEnable(GraphicsConsole);
    if (!NT_SUCCESS(Status))
    {
        /* Failed to enable it, undo everything */
        EfiPrintf(L"Enable failed\r\n");
        ConsoleFirmwareGraphicalClose(GraphicsConsole);
        ConsoleTextLocalDestruct(&GraphicsConsole->TextConsole);
        return STATUS_UNSUCCESSFUL;
    }
 
    /* Save the graphics text color from the text mode text color */
    GraphicsConsole->FgColor = GraphicsConsole->TextConsole.State.FgColor;
    GraphicsConsole->BgColor = GraphicsConsole->TextConsole.State.BgColor;
    return STATUS_SUCCESS;
}

Referenced by DsppInitialize().

ConsoleGraphicalDestruct()

VOID ConsoleGraphicalDestruct

(

_In_ PBL_GRAPHICS_CONSOLE

Console

)

Definition at line 331 of file guicons.c.

{
    /* Is the text console active? */
    if (Console->TextConsole.Active)
    {
        /* Disable it */
        ConsoleFirmwareGraphicalDisable(Console);
    }
 
    /* Close the firmware protocols */
    ConsoleFirmwareGraphicalClose(Console);
 
    /* Destroy the console object */
    ConsoleTextLocalDestruct(&Console->TextConsole);
}

ConsoleGraphicalEnable()

NTSTATUS ConsoleGraphicalEnable	(	_In_ PBL_GRAPHICS_CONSOLE	Console,
		_In_ BOOLEAN	Enable
	)

Definition at line 369 of file guicons.c.

{
    BOOLEAN Active;
    NTSTATUS Status;
 
    /* The text mode console state should be the opposite of what we want to do */
    Active = Console->TextConsole.Active;
    if (Active == Enable)
    {
        /* Are we trying to enable graphics? */
        if (Enable)
        {
            /* Enable the console */
            Status = ConsoleFirmwareGraphicalEnable(Console);
            if (NT_SUCCESS(Status))
            {
                return Status;
            }
 
            /* Is the text console active? */
            if (Console->TextConsole.Active)
            {
                /* Turn it off */
                ConsoleFirmwareTextClose(&Console->TextConsole);
                Console->TextConsole.Active = FALSE;
            }
 
            /* Preserve the text colors */
            Console->FgColor = Console->TextConsole.State.FgColor;
            Console->BgColor = Console->TextConsole.State.BgColor;
        }
        else
        {
            /* We are turning off graphics -- is the text console active? */
            if (Active != TRUE)
            {
                /* It isn't, so let's turn it on */
                Status = ConsoleFirmwareTextOpen(&Console->TextConsole);
                if (!NT_SUCCESS(Status))
                {
                    return Status;
                }
 
                /* Remember that it's on */
                Console->TextConsole.Active = TRUE;
            }
 
            /* Disable the graphics console */
            ConsoleFirmwareGraphicalDisable(Console);
        }
    }
 
    /* All good */
    return STATUS_SUCCESS;
}

ConsoleGraphicalGetGraphicalResolution()

NTSTATUS ConsoleGraphicalGetGraphicalResolution	(	_In_ PBL_GRAPHICS_CONSOLE	Console,
		_In_ PBL_DISPLAY_MODE	DisplayMode
	)

Definition at line 429 of file guicons.c.

{
    /* Is the text console active? */
    if (Console->TextConsole.Active)
    {
        /* There's no graphics resolution then */
        return STATUS_UNSUCCESSFUL;
    }
 
    /* Return the current display mode */
    *DisplayMode = Console->DisplayMode;
    return STATUS_SUCCESS;
}

ConsoleGraphicalGetOriginalResolution()

NTSTATUS ConsoleGraphicalGetOriginalResolution	(	_In_ PBL_GRAPHICS_CONSOLE	Console,
		_In_ PBL_DISPLAY_MODE	DisplayMode
	)

Definition at line 447 of file guicons.c.

{
    /* Is the text console active? */
    if (Console->TextConsole.Active)
    {
        /* There's no graphics resolution then */
        return STATUS_UNSUCCESSFUL;
    }
 
    /* Return the current display mode */
    *DisplayMode = Console->OldDisplayMode;
    return STATUS_SUCCESS;
}

ConsoleGraphicalIsEnabled()

BOOLEAN ConsoleGraphicalIsEnabled

(

_In_ PBL_GRAPHICS_CONSOLE

Console

)

Definition at line 322 of file guicons.c.

{
    /* Is the text console active? If so, the graphics console isn't */
    return !Console->TextConsole.Active;
}

ConsoleGraphicalReinitialize()

NTSTATUS ConsoleGraphicalReinitialize

(

_In_ PBL_GRAPHICS_CONSOLE

Console

)

Definition at line 350 of file guicons.c.

{
    /* Is the text console active? */
    if (Console->TextConsole.Active)
    {
        /* Reinitialize it */
        ConsoleTextLocalReinitialize(&Console->TextConsole);
    }
 
    /* Disable the graphics console */
    ConsoleFirmwareGraphicalDisable(Console);
 
    /* Then bring it back again */
    return ConsoleFirmwareGraphicalEnable(Console);
}

ConsoleGraphicalSetTextState()

NTSTATUS ConsoleGraphicalSetTextState	(	_In_ PBL_GRAPHICS_CONSOLE	Console,
		_In_ ULONG	Mask,
		_In_ PBL_DISPLAY_STATE	TextState
	)

Definition at line 37 of file guicons.c.

{
    /* Is the text console active? */
    if (Console->TextConsole.Active)
    {
        /* Let it handle that */
        return ConsoleFirmwareTextSetState(&Console->TextConsole,
                                           Mask,
                                           TextState);
    }
 
    /* Not yet */
    EfiPrintf(L"FFX set not implemented\r\n");
    return STATUS_NOT_IMPLEMENTED;
}

ConsolepClearBuffer()

VOID ConsolepClearBuffer	(	_In_ PUCHAR	FrameBuffer,
		_In_ ULONG	Width,
		_In_ PUCHAR	FillColor,
		_In_ ULONG	Height,
		_In_ ULONG	ScanlineWidth,
		_In_ ULONG	PixelDepth
	)

Definition at line 109 of file guicons.c.

{
    PUCHAR Scanline, Current, FrameBufferEnd, LineEnd;
    ULONG LineBytes, WidthBytes, BytesPerPixel;
 
    /* Get the BPP */
    BytesPerPixel = PixelDepth / 8;
 
    /* Using that, calculate the size of a scan line */
    LineBytes = ScanlineWidth * BytesPerPixel;
 
    /* And the size of line we'll have to clear */
    WidthBytes = Width * BytesPerPixel;
 
    /* Allocate a scanline */
    Scanline = BlMmAllocateHeap(WidthBytes);
    if (Scanline)
    {
        /* For each remaining pixel on the scanline */
        Current = Scanline;
        while (Width--)
        {
            /* Copy in the fill color */
            RtlCopyMemory(Current, FillColor, BytesPerPixel);
            Current += BytesPerPixel;
        }
 
        /* For each scanline in the frame buffer */
        while (Height--)
        {
            /* Copy our constructed scanline */
            RtlCopyMemory(FrameBuffer, Scanline, WidthBytes);
            FrameBuffer += LineBytes;
        }
    }
    else
    {
        FrameBufferEnd = FrameBuffer + Height * LineBytes;
        ScanlineWidth = BytesPerPixel * (ScanlineWidth - Width);
        while (FrameBuffer != FrameBufferEnd)
        {
            if (FrameBuffer != (FrameBuffer + WidthBytes))
            {
                LineEnd = FrameBuffer + WidthBytes;
                do
                {
                    RtlCopyMemory(FrameBuffer, FillColor, BytesPerPixel);
                    FrameBuffer += BytesPerPixel;
                }
                while (FrameBuffer != LineEnd);
            }
 
            FrameBuffer += ScanlineWidth;
        }
    }
}

Referenced by ConsoleFirmwareGraphicalClear().

ConsolepConvertColorToPixel()

NTSTATUS ConsolepConvertColorToPixel	(	_In_ BL_COLOR	Color,
		_Out_ PUCHAR	Pixel
	)

Definition at line 174 of file guicons.c.

{
    NTSTATUS Status;
 
    /* Assume success */
    Status = STATUS_SUCCESS;
 
    /* Convert the color to a pixel value */
    switch (Color)
    {
    case Black:
        Pixel[1] = 0;
        Pixel[2] = 0;
        Pixel[0] = 0;
        break;
    case Blue:
        Pixel[1] = 0;
        Pixel[2] = 0;
        Pixel[0] = 0x7F;
        break;
    case Green:
        Pixel[1] = 0x7F;
        Pixel[2] = 0;
        Pixel[0] = 0;
        break;
    case Cyan:
        Pixel[1] = 0x7F;
        Pixel[2] = 0;
        Pixel[0] = 0x7F;
        break;
    case Red:
        Pixel[1] = 0;
        Pixel[2] = 0x7F;
        Pixel[0] = 0x7F;
        break;
    case Magenta:
        Pixel[1] = 0;
        Pixel[2] = 0x7F;
        Pixel[0] = 0x7F;
        break;
    case Brown:
        Pixel[1] = 0x3F;
        Pixel[2] = 0x7F;
        Pixel[0] = 0;
        break;
    case LtGray:
        Pixel[1] = 0xBFu;
        Pixel[2] = 0xBFu;
        *Pixel = 0xBFu;
        break;
    case Gray:
        Pixel[1] = 0x7F;
        Pixel[2] = 0x7F;
        Pixel[0] = 0x7F;
        break;
    case LtBlue:
        Pixel[1] = 0;
        Pixel[2] = 0;
        Pixel[0] = 0xFF;
        break;
    case LtGreen:
        Pixel[1] = 0xFF;
        Pixel[2] = 0;
        Pixel[0] = 0;
        break;
    case LtCyan:
        Pixel[1] = 0xFF;
        Pixel[2] = 0;
        Pixel[0] = 0xFF;
        break;
    case LtRed:
        Pixel[1] = 0;
        Pixel[2] = 0xFF;
        Pixel[0] = 0;
        break;
    case LtMagenta:
        Pixel[1] = 0;
        Pixel[2] = 0xFF;
        Pixel[0] = 0xFF;
        break;
    case Yellow:
        Pixel[1] = 0xFF;
        Pixel[2] = 0xFF;
        Pixel[0] = 0;
        break;
    case White:
        Pixel[1] = 0xFF;
        Pixel[2] = 0xFF;
        Pixel[0] = 0xFF;
        break;
    default:
        Status = STATUS_INVALID_PARAMETER;
        break;
    }
    return Status;
}

Referenced by ConsoleFirmwareGraphicalClear().

Variable Documentation

ConsoleGraphicalVtbl

BL_GRAPHICS_CONSOLE_VTABLE ConsoleGraphicalVtbl

Initial value:

=
{
    {
        (PCONSOLE_DESTRUCT)ConsoleGraphicalDestruct,
        (PCONSOLE_REINITIALIZE)ConsoleGraphicalReinitialize,
        ConsoleTextBaseGetTextState,
        (PCONSOLE_SET_TEXT_STATE)ConsoleGraphicalSetTextState,
        NULL, 
        NULL, 
        (PCONSOLE_CLEAR_TEXT)ConsoleGraphicalClearText
    },
    ConsoleGraphicalIsEnabled,
    ConsoleGraphicalEnable,
    NULL,
    ConsoleGraphicalGetGraphicalResolution,
    ConsoleGraphicalGetOriginalResolution,
    NULL,
}

Definition at line 15 of file guicons.c.

Referenced by ConsoleGraphicalConstruct().