1// SPDX-License-Identifier: MIT OR MPL-2.0 OR LGPL-2.1-or-later OR GPL-2.0-or-later
2// Copyright 2010, SIL International, All rights reserved.
3
4#include "inc/Face.h"
5#include "inc/Font.h"
6#include "inc/GlyphCache.h"
7
8using namespace graphite2;
9
10Font::Font(float ppm, const Face & f, const void * appFontHandle, const gr_font_ops * ops)
11: m_appFontHandle(appFontHandle ? appFontHandle : this),
12 m_face(f),
13 m_scale(ppm / f.glyphs().unitsPerEm()),
14 m_hinted(appFontHandle && ops && (ops->glyph_advance_x || ops->glyph_advance_y))
15{
16 memset(&m_ops, 0, sizeof m_ops);
17 if (m_hinted && ops)
18 memcpy(&m_ops, ops, min(sizeof m_ops, ops->size));
19 else
20 m_ops.glyph_advance_x = &Face::default_glyph_advance;
21
22 size_t nGlyphs = f.glyphs().numGlyphs();
23 m_advances = gralloc<float>(nGlyphs);
24 if (m_advances)
25 {
26 for (float *advp = m_advances; nGlyphs; --nGlyphs, ++advp)
27 *advp = INVALID_ADVANCE;
28 }
29}
30
31
32/*virtual*/ Font::~Font()
33{
34 free(m_advances);
35}
36