MGD::DEVICE_MEM1_SPARSE Class Reference

A RAM-based implementation of MGD::DEVICE for sparse 1-bit visuals. More...

#include <mi32/mg2mem1s.h>

Inheritance diagram for MGD::DEVICE_MEM1_SPARSE:

[legend]List of all members.

Public Member Functions
ERRVALUE	Create (INT32 height, INT32 width, bool StartValue=false)
	DEVICE_MEM1_SPARSE ()
virtual	~DEVICE_MEM1_SPARSE ()
Private Member Functions
virtual CONTEXT *	v_CreateContext ()
virtual ERRVALUE	v_FillSpan (MGD::CONTEXT *vgc, INT32 x1, INT32 x2, INT32 y)
bool	v_GetRange (INT32 x, INT32 y, INT32 x2, INT32 &endx) const
bool	v_GetValue (INT32 x, INT32 y) const
void	v_SetAll (bool value=true)

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Detailed Description

A RAM-based implementation of MGD::DEVICE for sparse 1-bit visuals.

This version is implemented in such a way as to be more memory efficient as it will not allocate memory for lines which are solid. Not as fast as MGD::DEVICE_MEM1

Definition at line 101 of file mg2mem1s.h.

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Constructor & Destructor Documentation

MGD::DEVICE_MEM1_SPARSE::DEVICE_MEM1_SPARSE (   )

constructor

virtual MGD::DEVICE_MEM1_SPARSE::~DEVICE_MEM1_SPARSE (   )  [virtual]

Destructor.

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Member Function Documentation

ERRVALUE MGD::DEVICE_MEM1_SPARSE::Create (  INT32  height, INT32  width, bool  StartValue = false )

virtual CONTEXT* MGD::DEVICE_MEM1_SPARSE::v_CreateContext (   )  [private, virtual]

Create a GC for drawing. Derived classes may override this and make it return anything derived from MGD_GC. MGD_GC's constructor is private, so this is the only way for calling code to create a GC. Reimplemented from MGD::DEVICE.

virtual ERRVALUE MGD::DEVICE_MEM1_SPARSE::v_FillSpan (  MGD::CONTEXT *  vgc, INT32  x1, INT32  x2, INT32  y )  [private, virtual]

Fill a horizontal span. Overrides base class method. Reimplemented from MGD::DEVICE.

bool MGD::DEVICE_MEM1_SPARSE::v_GetRange (  INT32  x, INT32  y, INT32  x2, INT32 &  endx )  const [private]

Parameters: x2  Maximum ending position endx  Ending position (inclusive) RETURNED

bool MGD::DEVICE_MEM1_SPARSE::v_GetValue (  INT32  x, INT32  y )  const [private]

void MGD::DEVICE_MEM1_SPARSE::v_SetAll (  bool  value = true  )  [private]

Set the whole image to 1 or 0.

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

• mi32/mg2mem1s.h

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