babyxrc Code
A portable ANSI C resource compiler to import images, audio, and text.
Status: Beta
Brought to you by:
malcolmmclean
Menu
▾
▴
Tree [7d60eb] master / src / History
Read Me
This is the Baby X resource compiler.
It is designed to take resources - images, fonts, strings and so
on - and package them up as compileable C source. So you include
the source in your project.
It takes a simple definition file which lists the resources. The
path will be relative to where you evoke the resource compiler.
<BabyXRC>
<font src = "Skater Girls Rock.ttf", name = "skatergirls", points = "20"> </font>
<image src = "valST.GIF", name = "valineST", width = "52", height = "44"> </image>
<cursor src ="yellow_smiley.cur", name ="yellowsmiley_cur"> </cursor>
</BabyXRC>
That's essentially it. It can load bmp, jpeg, gif, png, tiff and svg images.
It automatically rescales them if required. The output is a 32 bit rgba
buffer.
Cursors are .cur file. They're essentially the same as images, but with
a hotpoint defined.
You can also package up text and binaries. Code to resample audio files
is in, but not tested yet.
Fonts are converted to a raster format that is simple to write to a
display.
#ifndef font_h
#define font_h
/* bitmap font structure */
struct bitmap_font {
unsigned char width; /* max. character width */
unsigned char height; /* character height */
int ascent; /* font ascent */
int descent; /* font descent */
unsigned short Nchars; /* number of characters in font */
unsigned char *widths; /* width of each character */
unsigned short *index; /* encoding to character index */
unsigned char *bitmap; /* bitmap of all characters */
};
struct bitmap_font vera12_font =
{
20, /* max width */
19, /* height */
15, /* ascent */
4, /* descent */
257, /* Nchars */
vera12_widths, /* widths */
vera12_index, /* index */
vera12_bitmap /* bitmap */
};
The bitmap is an alpha map / greyscale, depending how you wish to think of it.
The characters are in cells width * height, and right padded. To get from
unicode to the internal index, do a binary search on the index member.
You then read off the width, and index into the bitmap
unsigned char *cell = ptr->bitmamp + ptr->width * ptr->height * index;
The program is free for any use, but please respect the copyright licences
of the components.