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Alessandro Mauri 2025-10-25 17:28:48 +02:00
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libschrift.c3 Normal file
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module schrift;
alias SftFont = void*;
alias SftUChar = uint;
alias SftGlyph = uint;
const int SFT_DOWNWARD_Y = 0x01;
struct Sft
{
SftFont font;
double xScale;
double yScale;
double xOffset;
double yOffset;
int flags;
}
struct SftLMetrics
{
double ascender;
double descender;
double lineGap;
}
struct SftGMetrics
{
double advanceWidth;
double leftSideBearing;
int yOffset;
int minWidth;
int minHeight;
}
struct SftKerning
{
double xShift;
double yShift;
}
struct SftImage
{
void *pixels;
int width;
int height;
}
extern fn ZString sft_version() @extern("sft_version");
extern fn SftFont loadmem(void* mem, usz size) @extern("sft_loadmem");
extern fn SftFont loadfile(ZString filename) @extern("sft_loadfile");
extern fn void freefont(SftFont font) @extern("sft_freefont");
extern fn int lmetrics(Sft* sft, SftLMetrics* metrics) @extern("sft_lmetrics");
extern fn int lookup(Sft* sft, SftUChar codepoint, SftGlyph* glyph) @extern("sft_lookup");
extern fn int gmetrics(Sft* sft, SftGlyph glyph, SftGMetrics* metrics) @extern("sft_gmetrics");
extern fn int kerning(Sft* sft, SftGlyph leftGlyph, SftGlyph rightGlyph, SftKerning* kerning) @extern("sft_kerning");
extern fn int render(Sft* sft, SftGlyph glyph, SftImage image) @extern("sft_render");