diff options
author | Liang Qi <liang.qi@qt.io> | 2016-08-31 08:24:21 +0200 |
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committer | Liang Qi <liang.qi@qt.io> | 2016-08-31 08:24:21 +0200 |
commit | f510a51dace0cb39a93b057b8fcbcbdda33a956e (patch) | |
tree | cd1dac8a78ecbb7579c59bf9f0b0d2d6fba56b4a /src/gui/text/qfontengine.cpp | |
parent | ccedc853a67da078ace234af7b23fbf861736f3f (diff) | |
parent | 84830fc07d65d58fce9b24b5ec8f1224b0969ac0 (diff) |
Merge remote-tracking branch 'origin/5.8' into dev
Change-Id: I843994939f126ced22f7fe978ec4403f599fc7c9
Diffstat (limited to 'src/gui/text/qfontengine.cpp')
-rw-r--r-- | src/gui/text/qfontengine.cpp | 59 |
1 files changed, 28 insertions, 31 deletions
diff --git a/src/gui/text/qfontengine.cpp b/src/gui/text/qfontengine.cpp index dbd47151bd..74ea8d15b7 100644 --- a/src/gui/text/qfontengine.cpp +++ b/src/gui/text/qfontengine.cpp @@ -1046,46 +1046,45 @@ QByteArray QFontEngine::getSfntTable(uint tag) const return table; } -void QFontEngine::clearGlyphCache(const void *key) +void QFontEngine::clearGlyphCache(const void *context) { - for (QLinkedList<GlyphCacheEntry>::iterator it = m_glyphCaches.begin(), end = m_glyphCaches.end(); it != end; ) { - if (it->context == key) - it = m_glyphCaches.erase(it); - else - ++it; - } + m_glyphCaches.remove(context); } -void QFontEngine::setGlyphCache(const void *key, QFontEngineGlyphCache *data) +void QFontEngine::setGlyphCache(const void *context, QFontEngineGlyphCache *cache) { - Q_ASSERT(data); + Q_ASSERT(cache); - GlyphCacheEntry entry; - entry.context = key; - entry.cache = data; - if (m_glyphCaches.contains(entry)) - return; + GlyphCaches &caches = m_glyphCaches[context]; + for (GlyphCaches::const_iterator it = caches.constBegin(), end = caches.constEnd(); it != end; ++it) { + if (cache == it->cache.data()) + return; + } - // Limit the glyph caches to 4. This covers all 90 degree rotations and limits - // memory use when there is continuous or random rotation - if (m_glyphCaches.size() == 4) - m_glyphCaches.removeLast(); + // Limit the glyph caches to 4 per context. This covers all 90 degree rotations, + // and limits memory use when there is continuous or random rotation + if (caches.size() == 4) + caches.removeLast(); - m_glyphCaches.push_front(entry); + GlyphCacheEntry entry; + entry.cache = cache; + caches.push_front(entry); } -QFontEngineGlyphCache *QFontEngine::glyphCache(const void *key, GlyphFormat format, const QTransform &transform) const +QFontEngineGlyphCache *QFontEngine::glyphCache(const void *context, GlyphFormat format, const QTransform &transform) const { - for (QLinkedList<GlyphCacheEntry>::const_iterator it = m_glyphCaches.constBegin(), end = m_glyphCaches.constEnd(); it != end; ++it) { - QFontEngineGlyphCache *c = it->cache.data(); - if (key == it->context - && format == c->glyphFormat() - && qtransform_equals_no_translate(c->m_transform, transform)) { - return c; - } + const QHash<const void*, GlyphCaches>::const_iterator caches = m_glyphCaches.constFind(context); + if (caches == m_glyphCaches.cend()) + return Q_NULLPTR; + + for (GlyphCaches::const_iterator it = caches->begin(), end = caches->end(); it != end; ++it) { + QFontEngineGlyphCache *cache = it->cache.data(); + if (format == cache->glyphFormat() && qtransform_equals_no_translate(cache->m_transform, transform)) + return cache; } - return 0; + + return Q_NULLPTR; } static inline QFixed kerning(int left, int right, const QFontEngine::KernPair *pairs, int numPairs) @@ -1565,12 +1564,11 @@ QFixed QFontEngine::lastRightBearing(const QGlyphLayout &glyphs, bool round) QFontEngine::GlyphCacheEntry::GlyphCacheEntry() - : context(0) { } QFontEngine::GlyphCacheEntry::GlyphCacheEntry(const GlyphCacheEntry &o) - : context(o.context), cache(o.cache) + : cache(o.cache) { } @@ -1580,7 +1578,6 @@ QFontEngine::GlyphCacheEntry::~GlyphCacheEntry() QFontEngine::GlyphCacheEntry &QFontEngine::GlyphCacheEntry::operator=(const GlyphCacheEntry &o) { - context = o.context; cache = o.cache; return *this; } |