Graphics::YUVToRGBManager Class Reference

Inheritance diagram for Graphics::YUVToRGBManager:

Public Types
enum	LuminanceScale { kScaleFull, kScaleITU }

Public Member Functions
void	convert444 (Graphics::Surface *dst, LuminanceScale scale, const byte *ySrc, const byte *uSrc, const byte *vSrc, int yWidth, int yHeight, int yPitch, int uvPitch)
void	convert422 (Graphics::Surface *dst, LuminanceScale scale, const byte *ySrc, const byte *uSrc, const byte *vSrc, int yWidth, int yHeight, int yPitch, int uvPitch)
void	convert420 (Graphics::Surface *dst, LuminanceScale scale, const byte *ySrc, const byte *uSrc, const byte *vSrc, int yWidth, int yHeight, int yPitch, int uvPitch)
void	convert420Alpha (Graphics::Surface *dst, LuminanceScale scale, const byte *ySrc, const byte *uSrc, const byte *vSrc, const byte *aSrc, int yWidth, int yHeight, int yPitch, int uvPitch)
void	convert410 (Graphics::Surface *dst, LuminanceScale scale, const byte *ySrc, const byte *uSrc, const byte *vSrc, int yWidth, int yHeight, int yPitch, int uvPitch)

Additional Inherited Members
Static Public Member Functions inherited from Common::Singleton< YUVToRGBManager >
static bool	hasInstance ()
static YUVToRGBManager &	instance ()
static void	destroy ()
Protected Types inherited from Common::Singleton< YUVToRGBManager >
typedef YUVToRGBManager	SingletonBaseType
Static Protected Attributes inherited from Common::Singleton< YUVToRGBManager >
static YUVToRGBManager *	_singleton

Member Enumeration Documentation

LuminanceScale

enum Graphics::YUVToRGBManager::LuminanceScale

The scale of the luminance values

Enumerator
kScaleITU	Luminance values range from [0, 255] Luminance values range from [16, 235], the range from ITU-R BT.601

Member Function Documentation

convert444()

void Graphics::YUVToRGBManager::convert444	(	Graphics::Surface *	dst,
		LuminanceScale	scale,
		const byte *	ySrc,
		const byte *	uSrc,
		const byte *	vSrc,
		int	yWidth,
		int	yHeight,
		int	yPitch,
		int	uvPitch
	)

Convert a YUV444 image to an RGB surface

Parameters

dst	the destination surface
scale	the scale of the luminance values
ySrc	the source of the y component
uSrc	the source of the u component
vSrc	the source of the v component
yWidth	the width of the y surface
yHeight	the height of the y surface
yPitch	the pitch of the y surface
uvPitch	the pitch of the u and v surfaces

convert422()

void Graphics::YUVToRGBManager::convert422	(	Graphics::Surface *	dst,
		LuminanceScale	scale,
		const byte *	ySrc,
		const byte *	uSrc,
		const byte *	vSrc,
		int	yWidth,
		int	yHeight,
		int	yPitch,
		int	uvPitch
	)

Convert a YUV422 image to an RGB surface

Parameters

dst	the destination surface
scale	the scale of the luminance values
ySrc	the source of the y component
uSrc	the source of the u component
vSrc	the source of the v component
yWidth	the width of the y surface (must be divisible by 2)
yHeight	the height of the y surface
yPitch	the pitch of the y surface
uvPitch	the pitch of the u and v surfaces

convert420()

void Graphics::YUVToRGBManager::convert420	(	Graphics::Surface *	dst,
		LuminanceScale	scale,
		const byte *	ySrc,
		const byte *	uSrc,
		const byte *	vSrc,
		int	yWidth,
		int	yHeight,
		int	yPitch,
		int	uvPitch
	)

Convert a YUV420 image to an RGB surface

Parameters

dst	the destination surface
scale	the scale of the luminance values
ySrc	the source of the y component
uSrc	the source of the u component
vSrc	the source of the v component
yWidth	the width of the y surface (must be divisible by 2)
yHeight	the height of the y surface (must be divisible by 2)
yPitch	the pitch of the y surface
uvPitch	the pitch of the u and v surfaces

convert420Alpha()

void Graphics::YUVToRGBManager::convert420Alpha	(	Graphics::Surface *	dst,
		LuminanceScale	scale,
		const byte *	ySrc,
		const byte *	uSrc,
		const byte *	vSrc,
		const byte *	aSrc,
		int	yWidth,
		int	yHeight,
		int	yPitch,
		int	uvPitch
	)

Convert a YUV420 image with Alpha component to an ARGB surface

Parameters

dst	the destination surface
scale	the scale of the luminance values
ySrc	the source of the y component
uSrc	the source of the u component
vSrc	the source of the v component
aSrc	the source of the a component
yWidth	the width of the y surface (must be divisible by 2)
yHeight	the height of the y surface (must be divisible by 2)
yPitch	the pitch of the y surface
uvPitch	the pitch of the u and v surfaces

convert410()

void Graphics::YUVToRGBManager::convert410	(	Graphics::Surface *	dst,
		LuminanceScale	scale,
		const byte *	ySrc,
		const byte *	uSrc,
		const byte *	vSrc,
		int	yWidth,
		int	yHeight,
		int	yPitch,
		int	uvPitch
	)

Convert a YUV410 image to an RGB surface

Since the chroma has a very low resolution in 410, we perform bilinear scaling on the two chroma planes to produce the image. The chroma planes must have at least one extra row and one extra column that can be read from in order to produce a proper image. It is suggested that you fill these in with the previous row and column's data. This is required in order to speed up this function.

Parameters

dst	the destination surface
scale	the scale of the luminance values
ySrc	the source of the y component
uSrc	the source of the u component
vSrc	the source of the v component
yWidth	the width of the y surface (must be divisible by 4)
yHeight	the height of the y surface (must be divisible by 4)
yPitch	the pitch of the y surface
uvPitch	the pitch of the u and v surfaces

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

• graphics/yuv_to_rgb.h