ra8_gfx_font_t Struct Reference

Monochrome, fixed-width bitmap font descriptor. More...

#include <ra8_gfx_font.h>

Data Fields
const uint8_t *	glyph_data
	Packed glyph bitmaps; size = bytes_per_glyph * glyph_count.
uint8_t	glyph_width
	Glyph width in pixels.
uint8_t	glyph_height
	Glyph height in pixels.
uint8_t	bytes_per_glyph
	Bytes occupied by one glyph (rows * ceil(width/8)).
uint8_t	first_codepoint
	Lowest stored codepoint (typically 0x20, space).
uint8_t	last_codepoint
	Highest stored codepoint (typically 0x7E, '~').

Detailed Description

Monochrome, fixed-width bitmap font descriptor.

Glyphs are packed left-to-right, MSB-first within each byte; rows are stored top-to-bottom; glyphs are stored in ascending codepoint order.

Invariant

glyph_width >= 1 && glyph_height >= 1

bytes_per_glyph == ((glyph_width + 7) / 8) * glyph_height

first_codepoint <= last_codepoint

Definition at line 46 of file ra8_gfx_font.h.

Field Documentation

bytes_per_glyph

uint8_t ra8_gfx_font_t::bytes_per_glyph

Bytes occupied by one glyph (rows * ceil(width/8)).

Definition at line 50 of file ra8_gfx_font.h.

Referenced by internal_render_glyph().

first_codepoint

uint8_t ra8_gfx_font_t::first_codepoint

Lowest stored codepoint (typically 0x20, space).

Definition at line 51 of file ra8_gfx_font.h.

Referenced by internal_render_glyph().

glyph_data

const uint8_t* ra8_gfx_font_t::glyph_data

Packed glyph bitmaps; size = bytes_per_glyph * glyph_count.

Definition at line 47 of file ra8_gfx_font.h.

Referenced by internal_render_glyph().

glyph_height

uint8_t ra8_gfx_font_t::glyph_height

Glyph height in pixels.

Definition at line 49 of file ra8_gfx_font.h.

Referenced by internal_render_glyph(), and ra8_gfx_text_size().

glyph_width

uint8_t ra8_gfx_font_t::glyph_width

Glyph width in pixels.

Definition at line 48 of file ra8_gfx_font.h.

Referenced by internal_render_glyph(), ra8_gfx_text_out(), and ra8_gfx_text_size().

last_codepoint

uint8_t ra8_gfx_font_t::last_codepoint

Highest stored codepoint (typically 0x7E, '~').

Definition at line 52 of file ra8_gfx_font.h.

Referenced by internal_render_glyph().

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

• libs/ra8_gfx/inc/ra8_gfx_font.h