cudaFont Class Reference

TTF font rasterization and image overlay rendering using CUDA. More...

#include <cudaFont.h>

Classes
struct	GlyphInfo

Public Member Functions
	~cudaFont ()
	Destructor. More...
bool	OverlayText (void *image, imageFormat format, uint32_t width, uint32_t height, const char *str, int x, int y, const float4 &color=make_float4(0, 0, 0, 255), const float4 &background=make_float4(0, 0, 0, 0), int backgroundPadding=5)
	Render text overlay onto image. More...
bool	OverlayText (void *image, imageFormat format, uint32_t width, uint32_t height, const std::vector< std::pair< std::string, int2 > > &text, const float4 &color=make_float4(0, 0, 0, 255), const float4 &background=make_float4(0, 0, 0, 0), int backgroundPadding=5)
	Render text overlay onto image. More...
template<typename T >
bool	OverlayText (T *image, uint32_t width, uint32_t height, const char *str, int x, int y, const float4 &color=make_float4(0, 0, 0, 255), const float4 &background=make_float4(0, 0, 0, 0), int backgroundPadding=5)
	Render text overlay onto image. More...
template<typename T >
bool	OverlayText (T *image, uint32_t width, uint32_t height, const std::vector< std::pair< std::string, int2 > > &text, const float4 &color=make_float4(0, 0, 0, 255), const float4 &background=make_float4(0, 0, 0, 0), int backgroundPadding=5)
	Render text overlay onto image. More...
float	GetSize () const
	Return the size of the font (height in pixels) More...
int4	TextExtents (const char *str, int x=0, int y=0)
	Return the bounding rectangle of the given text string. More...

Static Public Member Functions
static cudaFont *	Create (float size=32.0f)
	Create new CUDA font overlay object using baked fonts. More...
static cudaFont *	Create (const char *font, float size)
	Create new CUDA font overlay object using baked fonts. More...
static cudaFont *	Create (const std::vector< std::string > &fonts, float size)
	Create new CUDA font overlay object using baked fonts. More...

Protected Member Functions
	cudaFont ()
bool	init (const char *font, float size)

Protected Attributes
float	mSize
uint8_t *	mFontMapCPU
uint8_t *	mFontMapGPU
int	mFontMapWidth
int	mFontMapHeight
void *	mCommandCPU
void *	mCommandGPU
int	mCmdIndex
float4 *	mRectsCPU
float4 *	mRectsGPU
int	mRectIndex
struct cudaFont::GlyphInfo	mGlyphInfo [NumGlyphs]

Static Protected Attributes
static const uint32_t	MaxCommands = 1024
static const uint32_t	FirstGlyph = 32
static const uint32_t	LastGlyph = 255
static const uint32_t	NumGlyphs = LastGlyph - FirstGlyph

Detailed Description

TTF font rasterization and image overlay rendering using CUDA.

Constructor & Destructor Documentation

~cudaFont()

cudaFont::~cudaFont

(

)

Destructor.

cudaFont()

cudaFont::cudaFont ( )

protected

Member Function Documentation

Create() [1/3]

static cudaFont* cudaFont::Create ( const char *  font, float  size  )

static

Create new CUDA font overlay object using baked fonts.

Parameters

font	The name of the TTF font to use.
size	The desired height of the font, in pixels.

Create() [2/3]

static cudaFont* cudaFont::Create ( const std::vector< std::string > &  fonts, float  size  )

static

Create new CUDA font overlay object using baked fonts.

Parameters

font	A list of font names that are acceptable to use. If the first font isn't found on the system, then the next font from the list will be tried.
size	The desired height of the font, in pixels.

Create() [3/3]

static cudaFont* cudaFont::Create ( float  size = 32.0f )

static

Create new CUDA font overlay object using baked fonts.

Parameters

size	The desired height of the font, in pixels.

GetSize()

float cudaFont::GetSize ( ) const

inline

Return the size of the font (height in pixels)

init()

bool cudaFont::init ( const char *  font, float  size  )

protected

OverlayText() [1/4]

template<typename T >

bool cudaFont::OverlayText ( T *  image, uint32_t  width, uint32_t  height, const char *  str, int  x, int  y, const float4 &  color = make_float4(0, 0, 0, 255), const float4 &  background = make_float4(0, 0, 0, 0), int  backgroundPadding = 5  )

inline

Render text overlay onto image.

OverlayText() [2/4]

template<typename T >

bool cudaFont::OverlayText ( T *  image, uint32_t  width, uint32_t  height, const std::vector< std::pair< std::string, int2 > > &  text, const float4 &  color = make_float4(0, 0, 0, 255), const float4 &  background = make_float4(0, 0, 0, 0), int  backgroundPadding = 5  )

inline

Render text overlay onto image.

OverlayText() [3/4]

bool cudaFont::OverlayText	(	void *	image,
		imageFormat	format,
		uint32_t	width,
		uint32_t	height,
		const char *	str,
		int	x,
		int	y,
		const float4 &	color = make_float4(0, 0, 0, 255),
		const float4 &	background = make_float4(0, 0, 0, 0),
		int	backgroundPadding = 5
	)

Render text overlay onto image.

OverlayText() [4/4]

bool cudaFont::OverlayText	(	void *	image,
		imageFormat	format,
		uint32_t	width,
		uint32_t	height,
		const std::vector< std::pair< std::string, int2 > > &	text,
		const float4 &	color = make_float4(0, 0, 0, 255),
		const float4 &	background = make_float4(0, 0, 0, 0),
		int	backgroundPadding = 5
	)

Render text overlay onto image.

TextExtents()

int4 cudaFont::TextExtents	(	const char *	str,
		int	x = 0,
		int	y = 0
	)

Return the bounding rectangle of the given text string.

Member Data Documentation

FirstGlyph

const uint32_t cudaFont::FirstGlyph = 32

staticprotected

LastGlyph

const uint32_t cudaFont::LastGlyph = 255

staticprotected

MaxCommands

const uint32_t cudaFont::MaxCommands = 1024

staticprotected

mCmdIndex

int cudaFont::mCmdIndex

protected

mCommandCPU

void* cudaFont::mCommandCPU

protected

mCommandGPU

void* cudaFont::mCommandGPU

protected

mFontMapCPU

uint8_t* cudaFont::mFontMapCPU

protected

mFontMapGPU

uint8_t* cudaFont::mFontMapGPU

protected

mFontMapHeight

int cudaFont::mFontMapHeight

protected

mFontMapWidth

int cudaFont::mFontMapWidth

protected

mGlyphInfo

struct cudaFont::GlyphInfo cudaFont::mGlyphInfo[NumGlyphs]

protected

mRectIndex

int cudaFont::mRectIndex

protected

mRectsCPU

float4* cudaFont::mRectsCPU

protected

mRectsGPU

float4* cudaFont::mRectsGPU

protected

mSize

float cudaFont::mSize

protected

NumGlyphs

const uint32_t cudaFont::NumGlyphs = LastGlyph - FirstGlyph

staticprotected

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

• jetson-utils/cudaFont.h