Differential D16122 Diff 56556 source/blender/blenkernel/intern/vfontdata_freetype.c

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source/blender/blenkernel/intern/vfontdata_freetype.c

Show First 20 Lines • Show All 264 Lines • ▼ Show 20 Lines	static VChar objchr_to_ftvfontdata(VFont vfont, FT_ULong charcode)
/* And everything went ok */		/* And everything went ok */
return che;		return che;
}		}

static VFontData objfnt_to_ftvfontdata(PackedFile pf)		static VFontData objfnt_to_ftvfontdata(PackedFile pf)
{		{
/* Variables */		/* Variables */
FT_Face face;		FT_Face face;
const FT_ULong charcode_reserve = 256;
FT_ULong charcode = 0, lcode;
FT_UInt glyph_index;
VFontData *vfd;		VFontData *vfd;

/* load the freetype font */		/* load the freetype font */
err = FT_New_Memory_Face(library, pf->data, pf->size, 0, &face);		err = FT_New_Memory_Face(library, pf->data, pf->size, 0, &face);

if (err) {		if (err) {
return NULL;		return NULL;
}		}
Show All 16 Lines	if (err && face->num_charmaps > 0) {
err = FT_Select_Charmap(face, face->charmaps[0]->encoding);		err = FT_Select_Charmap(face, face->charmaps[0]->encoding);
}		}
if (err) {		if (err) {
FT_Done_Face(face);		FT_Done_Face(face);
MEM_freeN(vfd);		MEM_freeN(vfd);
return NULL;		return NULL;
}		}

/* Extract the first 256 character from TTF */
lcode = charcode = FT_Get_First_Char(face, &glyph_index);

/* Blender default BFont is not "complete". */		/* Blender default BFont is not "complete". */
const bool complete_font = (face->ascender != 0) && (face->descender != 0) &&		const bool complete_font = (face->ascender != 0) && (face->descender != 0) &&
(face->ascender != face->descender);		(face->ascender != face->descender);

if (complete_font) {		if (complete_font) {
/* We can get descender as well, but we simple store descender in relation to the ascender.		/* We can get descender as well, but we simple store descender in relation to the ascender.
* Also note that descender is stored as a negative number. */		* Also note that descender is stored as a negative number. */
vfd->ascender = (float)face->ascender / (face->ascender - face->descender);		vfd->ascender = (float)face->ascender / (face->ascender - face->descender);
Show All 11 Lines	if (complete_font) {
vfd->em_height = (float)(face->ascender - face->descender) /		vfd->em_height = (float)(face->ascender - face->descender) /
(face->bbox.yMax - face->bbox.yMin);		(face->bbox.yMax - face->bbox.yMin);
}		}
}		}
else {		else {
vfd->scale = 1.0f / 1000.0f;		vfd->scale = 1.0f / 1000.0f;
}		}

/* Load characters */		/* Load the first 256 glyphs. */
vfd->characters = BLI_ghash_int_new_ex(__func__, charcode_reserve);

while (charcode < charcode_reserve) {		const FT_ULong preload_count = 256;
/* Generate the font data */		vfd->characters = BLI_ghash_int_new_ex(__func__, preload_count);
freetypechar_to_vchar(face, charcode, vfd);

/* Next glyph */		FT_ULong charcode = 0;
		FT_UInt glyph_index;
		campbellbartonUnsubmitted Not Done Inline Actions These can be moved into the body of the for loop. campbellbarton: These can be moved into the body of the for loop.
		for (int i = 0; i < preload_count; i++) {
charcode = FT_Get_Next_Char(face, charcode, &glyph_index);		charcode = FT_Get_Next_Char(face, charcode, &glyph_index);
		if (!charcode \|\| !glyph_index) {
/* Check that we won't start infinite loop */
if (charcode <= lcode) {
break;		break;
}		}
lcode = charcode;		freetypechar_to_vchar(face, charcode, vfd);
}		}

return vfd;		return vfd;
}		}

static bool check_freetypefont(PackedFile *pf)		static bool check_freetypefont(PackedFile *pf)
{		{
FT_Face face = NULL;		FT_Face face = NULL;
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