#include <Vga.h>

Inheritance diagram for ArmBeagleVga:

Collaboration diagram for ArmBeagleVga:

Public Member Functions
char	read ()

void	write (char c)

virtual void	setControl (VgaControl which)

virtual void	clearControl (VgaControl which)

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

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

Detailed Description

Note: useless, no text framebuffer device available.

Definition at line 26 of file kernel/machine/arm_beagle/Vga.h.

Member Function Documentation

virtual void ArmBeagleVga::clearControl ( VgaControl which )

inlinevirtual

Clears the given attribute mode control.

Implements Vga.

Definition at line 45 of file kernel/machine/arm_beagle/Vga.h.

References setMode().

size_t ArmBeagleVga::getNumCols ( )

inlinevirtual

Returns: The number of columns in the current mode.

Implements Vga.

Definition at line 89 of file kernel/machine/arm_beagle/Vga.h.

size_t ArmBeagleVga::getNumRows ( )

inlinevirtual

Returns: The number of rows in the current mode.

Implements Vga.

Definition at line 97 of file kernel/machine/arm_beagle/Vga.h.

bool ArmBeagleVga::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 81 of file kernel/machine/arm_beagle/Vga.h.

bool ArmBeagleVga::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 72 of file kernel/machine/arm_beagle/Vga.h.

void ArmBeagleVga::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 139 of file kernel/machine/arm_beagle/Vga.h.

void ArmBeagleVga::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 132 of file kernel/machine/arm_beagle/Vga.h.

void ArmBeagleVga::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 122 of file kernel/machine/arm_beagle/Vga.h.

void ArmBeagleVga::rememberMode ( )

inlinevirtual

Stores the current video mode.

Implements Vga.

Definition at line 105 of file kernel/machine/arm_beagle/Vga.h.

void ArmBeagleVga::restoreMode ( )

inlinevirtual

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

Implements Vga.

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

virtual void ArmBeagleVga::setControl ( VgaControl which )

inlinevirtual

Sets the given attribute mode control.

Implements Vga.

Definition at line 38 of file kernel/machine/arm_beagle/Vga.h.

bool ArmBeagleVga::setLargestTextMode ( )

inlinevirtual

Sets the largest possible text mode.

Returns: True on success, false on failure.

Implements Vga.

Definition at line 63 of file kernel/machine/arm_beagle/Vga.h.

bool ArmBeagleVga::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_beagle/Vga.cc.

Referenced by clearControl().

Here is the caller graph for this function:

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

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation