openmsx::CharacterConverter< Pixel > Class Template Reference

Utility class for converting VRAM contents to host pixels. More...

#include <CharacterConverter.hh>

Public Member Functions
	CharacterConverter (VDP &vdp, const Pixel *palFg, const Pixel *palBg)
	Create a new bitmap scanline converter. More...
void	convertLine (Pixel *linePtr, int line)
	Convert a line of V9938 VRAM to 512 host pixels. More...
void	setDisplayMode (DisplayMode mode)
	Select the display mode to use for scanline conversion. More...

Detailed Description

template<typename Pixel>
class openmsx::CharacterConverter< Pixel >

Utility class for converting VRAM contents to host pixels.

Definition at line 16 of file CharacterConverter.hh.

Constructor & Destructor Documentation

CharacterConverter()

template<typename Pixel >

openmsx::CharacterConverter< Pixel >::CharacterConverter	(	VDP &	vdp,
		const Pixel *	palFg,
		const Pixel *	palBg
	)

Create a new bitmap scanline converter.

Parameters

vdp	The VDP of which the VRAM will be converted.
palFg	Pointer to 16-entries array that specifies VDP foreground color index to host pixel mapping. This is kept as a pointer, so any changes to the palette are immediately picked up by convertLine.
palBg	Pointer to 16-entries array that specifies VDP background color index to host pixel mapping. This is kept as a pointer, so any changes to the palette are immediately picked up by convertLine.

Definition at line 25 of file CharacterConverter.cc.

Member Function Documentation

convertLine()

template<typename Pixel >

void openmsx::CharacterConverter< Pixel >::convertLine	(	Pixel *	linePtr,
		int	line
	)

Convert a line of V9938 VRAM to 512 host pixels.

Call this method in non-planar display modes (Graphic4 and Graphic5).

Parameters

linePtr	Pointer to array where host pixels will be written to.
line	Display line number [0..255].

Definition at line 40 of file CharacterConverter.cc.

References openmsx::DisplayMode::GRAPHIC1, openmsx::DisplayMode::GRAPHIC2, openmsx::DisplayMode::GRAPHIC3, openmsx::DisplayMode::MULTICOLOR, openmsx::DisplayMode::MULTIQ, openmsx::DisplayMode::TEXT1, openmsx::DisplayMode::TEXT1Q, and openmsx::DisplayMode::TEXT2.

setDisplayMode()

template<typename Pixel >

void openmsx::CharacterConverter< Pixel >::setDisplayMode

(

DisplayMode

mode

)

Select the display mode to use for scanline conversion.

Parameters

mode	The new display mode.

Definition at line 33 of file CharacterConverter.cc.

References openmsx::DisplayMode::getBase().

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

• CharacterConverter.hh
• CharacterConverter.cc