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| author | Moonchild <moonchild@palemoon.org> | 2020-05-13 14:36:06 +0000 |
|---|---|---|
| committer | Moonchild <moonchild@palemoon.org> | 2020-05-20 13:54:11 +0000 |
| commit | 85b89ee754ea34156ea2c760265e0445121c8ab9 (patch) | |
| tree | dd96212f2a0e10cb841f991696c7cdbf75f00fb1 /gfx/thebes/gfxFont-Impl.h | |
| parent | 9c006089e10285486fc9b71f1f128202f584fca5 (diff) | |
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Issue #80 - Split out GetShapedWord template function
Diffstat (limited to 'gfx/thebes/gfxFont-Impl.h')
| -rw-r--r-- | gfx/thebes/gfxFont-Impl.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/gfx/thebes/gfxFont-Impl.h b/gfx/thebes/gfxFont-Impl.h new file mode 100644 index 000000000..0dd84a882 --- /dev/null +++ b/gfx/thebes/gfxFont-Impl.h @@ -0,0 +1,80 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GFX_FONT_IMPL_H
+#define GFX_FONT_IMPL_H
+
+#ifdef __GNUC__
+#define GFX_MAYBE_UNUSED __attribute__((unused))
+#else
+#define GFX_MAYBE_UNUSED
+#endif
+
+template<typename T>
+gfxShapedWord*
+gfxFont::GetShapedWord(DrawTarget *aDrawTarget,
+ const T *aText,
+ uint32_t aLength,
+ uint32_t aHash,
+ Script aRunScript,
+ bool aVertical,
+ int32_t aAppUnitsPerDevUnit,
+ uint32_t aFlags,
+ gfxTextPerfMetrics *aTextPerf GFX_MAYBE_UNUSED)
+{
+ // if the cache is getting too big, flush it and start over
+ uint32_t wordCacheMaxEntries =
+ gfxPlatform::GetPlatform()->WordCacheMaxEntries();
+ if (mWordCache->Count() > wordCacheMaxEntries) {
+ NS_WARNING("flushing shaped-word cache");
+ ClearCachedWords();
+ }
+
+ // if there's a cached entry for this word, just return it
+ CacheHashKey key(aText, aLength, aHash,
+ aRunScript,
+ aAppUnitsPerDevUnit,
+ aFlags);
+
+ CacheHashEntry *entry = mWordCache->PutEntry(key);
+ if (!entry) {
+ NS_WARNING("failed to create word cache entry - expect missing text");
+ return nullptr;
+ }
+ gfxShapedWord* sw = entry->mShapedWord.get();
+
+ if (sw) {
+ sw->ResetAge();
+#ifndef RELEASE_OR_BETA
+ if (aTextPerf) {
+ aTextPerf->current.wordCacheHit++;
+ }
+#endif
+ return sw;
+ }
+
+#ifndef RELEASE_OR_BETA
+ if (aTextPerf) {
+ aTextPerf->current.wordCacheMiss++;
+ }
+#endif
+
+ sw = gfxShapedWord::Create(aText, aLength, aRunScript, aAppUnitsPerDevUnit,
+ aFlags);
+ entry->mShapedWord.reset(sw);
+ if (!sw) {
+ NS_WARNING("failed to create gfxShapedWord - expect missing text");
+ return nullptr;
+ }
+
+ DebugOnly<bool> ok =
+ ShapeText(aDrawTarget, aText, 0, aLength, aRunScript, aVertical, sw);
+
+ NS_WARNING_ASSERTION(ok, "failed to shape word - expect garbled text");
+
+ return sw;
+}
+
+#endif // GFX_FONT_IMPL_H
\ No newline at end of file |