+ QRawFontPrivate *fontD = QRawFontPrivate::get(font);
+ QHash<QFontEngine *, QSGDistanceFieldGlyphCache *>::iterator cache = m_caches.find(fontD->fontEngine);
+ if (cache == m_caches.end())
+ cache = m_caches.insert(fontD->fontEngine, new QSGDistanceFieldGlyphCache(this, ctx, font));
+ return cache.value();
+}
+
+int QSGDistanceFieldGlyphCacheManager::maxTextureSize() const
+{
+ if (!m_maxTextureSize)
+ glGetIntegerv(GL_MAX_TEXTURE_SIZE, &m_maxTextureSize);
+ return m_maxTextureSize;
+}
+
+
+QHash<QString, QGLContextGroupResource<QSGDistanceFieldGlyphCache::DistanceFieldTextureData> > QSGDistanceFieldGlyphCache::m_textures_data;
+
+QSGDistanceFieldGlyphCache::DistanceFieldTextureData *QSGDistanceFieldGlyphCache::textureData()
+{
+ QString key = QString::fromLatin1("%1_%2_%3_%4")
+ .arg(m_font.familyName())
+ .arg(m_font.styleName())
+ .arg(m_font.weight())
+ .arg(m_font.style());
+ return m_textures_data[key].value(ctx);
+}
+
+QSGDistanceFieldGlyphCache::QSGDistanceFieldGlyphCache(QSGDistanceFieldGlyphCacheManager *man, const QGLContext *c, const QRawFont &font)
+ : m_manager(man)
+ , ctx(c)
+{
+ Q_ASSERT(font.isValid());
+ m_font = font;
+
+ m_textureData = textureData();