#include <Vga.h>

Inheritance diagram for ArmVersatileVga:

Collaboration diagram for ArmVersatileVga:

Public Member Functions
char	read ()

void	write (char c)

virtual bool	setMode (int mode)

bool	setLargestTextMode ()

bool	isMode (size_t nCols, size_t nRows, bool bIsText, size_t nBpp=0)

bool	isLargestTextMode ()

size_t	getNumCols ()

size_t	getNumRows ()

void	rememberMode ()

void	restoreMode ()

void	pokeBuffer (uint8_t *pBuffer, size_t nBufLen)

void	peekBuffer (uint8_t *pBuffer, size_t nBufLen)

void	moveCursor (size_t nX, size_t nY)

	operator uint16_t * () const

Public Member Functions inherited from Vga
virtual void	setControl (VgaControl which)=0

virtual void	clearControl (VgaControl which)=0

Additional Inherited Members
Public Types inherited from Vga
enum	VgaControl { LineGraphics = 2, Blink = 3 }

Detailed Description

Vga device abstraction.

Definition at line 28 of file kernel/machine/arm_versatile/Vga.h.

Member Function Documentation

size_t ArmVersatileVga::getNumCols ( )

inlinevirtual

Returns: The number of columns in the current mode.

Implements Vga.

Definition at line 77 of file kernel/machine/arm_versatile/Vga.h.

size_t ArmVersatileVga::getNumRows ( )

inlinevirtual

Returns: The number of rows in the current mode.

Implements Vga.

Definition at line 85 of file kernel/machine/arm_versatile/Vga.h.

bool ArmVersatileVga::isLargestTextMode ( )

inlinevirtual

Tests if the current video mode is the largest text mode.

Returns: True if the current video mode is equal to the largest text mode.

Implements Vga.

Definition at line 69 of file kernel/machine/arm_versatile/Vga.h.

bool ArmVersatileVga::isMode	(	size_t	nCols,
		size_t	nRows,
		bool	bIsText,
		size_t	nBpp = `0`
	)

inlinevirtual

Tests the current video mode.

Returns: True if the current mode matches the given arguments.

Implements Vga.

Definition at line 60 of file kernel/machine/arm_versatile/Vga.h.

void ArmVersatileVga::moveCursor	(	size_t	nX,
		size_t	nY
	)

inlinevirtual

Moves the cursor to the position specified by the parameters.

Parameters

nX	The column to move to.
nY	The row to move to.

Implements Vga.

Definition at line 127 of file kernel/machine/arm_versatile/Vga.h.

Referenced by HostedVga::pokeBuffer().

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void ArmVersatileVga::peekBuffer	(	uint8_t *	pBuffer,
		size_t	nBufLen
	)

inlinevirtual

Copies the current framebuffer into the given buffer.

The buffer is assumed to be in the correct format for directly copying from video memory. This will obviously depend on the current mode (text/graphical) as well as resolution and bits per pixel (graphics mode only).

Parameters

A	pointer to the buffer.
The	length of pBuffer.

Implements Vga.

Definition at line 120 of file kernel/machine/arm_versatile/Vga.h.

void ArmVersatileVga::pokeBuffer	(	uint8_t *	pBuffer,
		size_t	nBufLen
	)

inlinevirtual

Copies the given buffer into video memory, replacing the current framebuffer.

The buffer is assumed to be in the correct format for directly copying into video memory. This will obviously depend on the current mode (text/graphical) as well as resolution and bits per pixel (graphics mode only).

Parameters

A	pointer to the buffer to swap into video memory.
The	length of pBuffer.

Implements Vga.

Definition at line 110 of file kernel/machine/arm_versatile/Vga.h.

void ArmVersatileVga::rememberMode ( )

inlinevirtual

Stores the current video mode.

Implements Vga.

Definition at line 93 of file kernel/machine/arm_versatile/Vga.h.

void ArmVersatileVga::restoreMode ( )

inlinevirtual

Restores the saved video mode from a rememberMode() call.

Implements Vga.

Definition at line 98 of file kernel/machine/arm_versatile/Vga.h.

bool ArmVersatileVga::setLargestTextMode ( )

inlinevirtual

Sets the largest possible text mode.

Returns: True on success, false on failure.

Implements Vga.

Definition at line 51 of file kernel/machine/arm_versatile/Vga.h.

bool ArmVersatileVga::setMode ( int mode )

virtual

Changes the mode the VGA device is in.

Parameters

nCols	The number of columns required.
nRows	The number of rows required.
bIsText	True if the caller requires a text mode, false if graphical.
nBpp	Only applicable for graphics modes - the number of bits per pixel.

Returns: True on success, false on failure.

Implements Vga.

Definition at line 36 of file kernel/machine/arm_versatile/Vga.cc.

The documentation for this class was generated from the following files:

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation