Gamp Pixel

Pixel definition and conversion. More...

Classes
class	gamp::render::pixel::ComponentMap
class	gamp::render::pixel::GenericPixelRect
	Generic PixelRectangle implementation. More...
class	gamp::render::pixel::PixelFormat
	Packed pixel composition, i.e. More...
class	gamp::render::pixel::PixelFormats
	Basic pixel formats. More...
class	gamp::render::pixel::PixelRectangle
	Pixel Rectangle identified by it's hashCode(). More...

Typedefs
typedef std::array< CType, 4 >	gamp::render::pixel::comparray4_t
typedef std::array< uint32_t, 4 >	gamp::render::pixel::u32array4_t

Enumerations
enum class	gamp::render::pixel::CType : uint8_t {   gamp::render::pixel::CType::none = 0 , gamp::render::pixel::CType::R = 1 , gamp::render::pixel::CType::G = 2 , gamp::render::pixel::CType::B = 3 ,   gamp::render::pixel::CType::A = 4 , gamp::render::pixel::CType::Y = 10 , gamp::render::pixel::CType::U = 11 , gamp::render::pixel::CType::V = 12 }
	Component types. More...

Functions
constexpr	gamp::render::pixel::ComponentMap::ComponentMap (jau::nsize_t srcCompCount, const comparray4_t &srcCompOrder, jau::nsize_t dstCompCount, const comparray4_t &dstCompOrder) noexcept
uint32_t	gamp::render::pixel::find (CType s, jau::nsize_t poolCount, const comparray4_t &pool, bool mapRGB2Y) noexcept
	Returns first index of given CType within pool , npos if not exists.
uint32_t	gamp::render::pixel::getShifted32 (uint32_t bytesPerPixel, const uint8_t *data)
	Returns shifted bytes from the given data at given offset of maximal 4 bytesPerPixel.
uint64_t	gamp::render::pixel::getShifted64 (uint32_t bytesPerPixel, const uint8_t *data)
	Returns shifted bytes from the given data at given offset of maximal 8 bytesPerPixel.
	gamp::render::pixel::JAU_MAKE_ENUM_STRING (CType, R, G, B, A, Y, U, V)

Variables
constexpr uint32_t	gamp::render::pixel::npos = std::numeric_limits<uint32_t>::max()
	maximum index, denoting no position or not found.

Detailed Description

Pixel definition and conversion.

Typedef Documentation

u32array4_t

typedef std::array<uint32_t, 4> gamp::render::pixel::u32array4_t

Definition at line 58 of file PixelUtil.hpp.

comparray4_t

typedef std::array<CType, 4> gamp::render::pixel::comparray4_t

Definition at line 59 of file PixelUtil.hpp.

Enumeration Type Documentation

CType

enum class gamp::render::pixel::CType : uint8_t

strong

Component types.

Enumerator
none	undefined
R	Red component.
G	Green component.
B	Blue component.
A	Alpha component.
Y	Luminance component, e.g. grayscale or Y of YUV
U	U component of YUV.
V	V component of YUV.

Definition at line 37 of file PixelUtil.hpp.

Function Documentation

JAU_MAKE_ENUM_STRING()

gamp::render::pixel::JAU_MAKE_ENUM_STRING	(	CType	,
		R	,
		G	,
		B	,
		A	,
		Y	,
		U	,
		V	)

find()

uint32_t gamp::render::pixel::find ( CType s, jau::nsize_t poolCount, const comparray4_t & pool, bool mapRGB2Y )

inlinenoexcept

Returns first index of given CType within pool , npos if not exists.

Definition at line 65 of file PixelUtil.hpp.

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ComponentMap()

gamp::render::pixel::ComponentMap::ComponentMap ( jau::nsize_t srcCompCount, const comparray4_t & srcCompOrder, jau::nsize_t dstCompCount, const comparray4_t & dstCompOrder )

inlineconstexprnoexcept

Definition at line 108 of file PixelUtil.hpp.

getShifted32()

uint32_t gamp::render::pixel::getShifted32 ( uint32_t bytesPerPixel, const uint8_t * data )

inline

Returns shifted bytes from the given data at given offset of maximal 4 bytesPerPixel.

Parameters

bytesPerPixel	number of bytes per pixel to fetch, a maximum of 4 are allowed
data	byte buffer covering at least one complete pixel, i.e. bytesPerPixel bytes

Returns

the shifted 32bit integer value of the pixel

Definition at line 133 of file PixelUtil.hpp.

getShifted64()

uint64_t gamp::render::pixel::getShifted64 ( uint32_t bytesPerPixel, const uint8_t * data )

inline

Returns shifted bytes from the given data at given offset of maximal 8 bytesPerPixel.

Parameters

bytesPerPixel	number of bytes per pixel to fetch, a maximum of 8 are allowed
data	byte buffer covering at least one complete pixel, i.e. bytesPerPixel bytes

Returns

the shifted 64bit integer value of the pixel

Definition at line 150 of file PixelUtil.hpp.

Variable Documentation

npos

uint32_t gamp::render::pixel::npos = std::numeric_limits<uint32_t>::max()

inlineconstexpr

maximum index, denoting no position or not found.

Definition at line 62 of file PixelUtil.hpp.