Function SysFont_Make

src/SystemFonts.c:738–771

#define TEXT_CEIL(x) (((x) + 63) >> 6)
cc_result SysFont_Make(struct FontDesc* desc, const cc_string* fontName, int size, int flags) {
	struct SysFont* font;
	cc_string value, path, index;
	int faceIndex, dpiX, dpiY;
	FT_Open_Args args;
	FT_Error err;

	desc->size   = size;
	desc->flags  = flags;
	desc->handle = NULL;

	value = Font_Lookup(fontName, flags);
	if (!value.length) return ERR_INVALID_ARGUMENT;
	String_UNSAFE_Separate(&value, ',', &path, &index);
	Convert_ParseInt(&index, &faceIndex);

	font = (struct SysFont*)Mem_TryAlloc(1, sizeof(struct SysFont));
	if (!font) return ERR_OUT_OF_MEMORY;

	InitFreeTypeLibrary();
	if ((err = SysFont_Init(&path, font, &args))) { Mem_Free(font); return err; }
	desc->handle = font;

	/* TODO: Use 72 instead of 96 dpi for mobile devices */
	dpiX = (int)(DisplayInfo.ScaleX * 96);
	dpiY = (int)(DisplayInfo.ScaleY * 96);

	if ((err = FT_New_Face(ft_lib, &args, faceIndex, &font->face)))     return err;
	if ((err = FT_Set_Char_Size(font->face, size * 64, 0, dpiX, dpiY))) return err;

	/* height of any text when drawn with the given system font */
	desc->height = TEXT_CEIL(font->face->size->metrics.height);
	return 0;
}

void SysFont_MakeDefault(struct FontDesc* desc, int size, int flags) {
	cc_string* font;