mg_font.c File Reference

Font file handling with the Freetype. More...

#include "glue_assert.h"
#include "glue_memory.h"
#include "glue_debug.h"
#include "mh5profile.h"
#include "mh5support.h"
#include "mg_ctxt.h"
#include "mg_drawtext.h"
#include "mg_fontapi.h"
#include "mg_font.h"
#include "tt7268m_751nz.inl"

Macros
#define	FONTS_CACHE_MAX   0x00020000
#define	MAX_FONT_OBJECTS   16

Functions
BOOLEAN	MG_FontInit (BOOLEAN isHD)
	Initialise freetype library and load "built-in" font. More...
void	MG_SetMaxFonts (U16BIT max)
	Set Max allowable fonts for profile. More...
void	MG_FontExit (void)
	Free all data associated with built-in font and terminate freetype library. More...
S16BIT	MG_FontLoadFile (const U8BIT *data, U32BIT length)
	Load font data file into memory for freetype. More...
void	MG_FontFreeFile (S16BIT font_index)
	free memory associated with file More...
S_FontDetails *	MG_GetFontPtr (S16BIT font_index)
	Get Pointer to Font. More...
void	MG_ReleaseFontPtr (S_FontDetails *fp)
H_FontSize	MG_AllocateFont (S16BIT fnt_index, U8BIT fnt_size, U8BIT fnt_style)
	Allocate font of particular size from font file. More...
void	MG_ReleaseFont (H_FontSize f_sz)
	Allocate font of particular size from font file. More...
S_FontDetails *	MG_FindFont (H_FontSize f_sz)
	Get font from size. More...
void	MG_GetFontMetrics (H_FontSize f_sz, S_FontMetrics *pMetrics)
	Get font Metrics. More...
S_FontSize *	MG_GetFontSize (U16BIT fnt_index, U8BIT fnt_size, U8BIT fnt_style)
void	MG_CheckCache (S_FontSize *f_szdata)

Variables
E_HDMode	mg_hd_mode = NORMAL_SD

Detailed Description

Font file handling with the Freetype.

Date

15/04/2010

Author

Adam Sturtridge

Function Documentation

H_FontSize MG_AllocateFont	(	S16BIT	fnt_index,
		U8BIT	fnt_size,
		U8BIT	fnt_style
	)

Allocate font of particular size from font file.

Parameters

font_index	index into MG's font array - from MG_FontLoadFile()
font_size	size in points

Returns

Handle to font size

void MG_CheckCache

(

S_FontSize *

f_szdata

)

Parameters

.

Returns

.

S_FontDetails* MG_FindFont

(

H_FontSize

f_sz

)

Get font from size.

Parameters

f_sz	Pointer to size data

Returns

n/a

void MG_FontExit

(

void

)

Free all data associated with built-in font and terminate freetype library.

Parameters

n/a

Returns

n/a

void MG_FontFreeFile

(

S16BIT

font_index

)

free memory associated with file

Parameters

font_index

index into MG's font array - from MG_FontLoadFile()

Returns

n/a

BOOLEAN MG_FontInit

(

BOOLEAN

isHD

)

Initialise freetype library and load "built-in" font.

Parameters

isHD	indicate whether supporting MHEG HD extension

Returns

TRUE - success, FALSE - failure

S16BIT MG_FontLoadFile	(	const U8BIT *	data,
		U32BIT	length
	)

Load font data file into memory for freetype.

Parameters

data	font file data
length	length of font file data

Returns

index into the MG's font array (on failure this is -1)

void MG_GetFontMetrics	(	H_FontSize	f_sz,
		S_FontMetrics *	pMetrics
	)

Get font Metrics.

Parameters

font_index

index into MG's font array - from MG_FontLoadFile()

Returns

n/a

S_FontDetails* MG_GetFontPtr

(

S16BIT

font_index

)

Get Pointer to Font.

Parameters

font_index

- as returned by MG_LoadFontFile().

Returns

Pointer to font details

S_FontSize* MG_GetFontSize	(	U16BIT	fnt_index,
		U8BIT	fnt_size,
		U8BIT	fnt_style
	)

Parameters

.

Returns

.

void MG_ReleaseFont

(

H_FontSize

f_sz

)

Allocate font of particular size from font file.

Parameters

font_index	index into MG's font array - from MG_FontLoadFile()
font_size	size in points

Returns

n/a

void MG_ReleaseFontPtr

(

S_FontDetails *

fp

)

Parameters

.

Returns

.

void MG_SetMaxFonts

(

U16BIT

max

)

Set Max allowable fonts for profile.

Parameters

n/a

Returns

n/a