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1 files changed, 106 insertions, 0 deletions

diff --git a/src/ftgl/FTCharmap.cpp b/src/ftgl/FTCharmap.cpp
new file mode 100644
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--- /dev/null
+++ b/src/ftgl/FTCharmap.cpp
@@ -0,0 +1,106 @@
+/*
+ * FTGL - OpenGL font library
+ *
+ * Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
+ * Copyright (c) 2008 Sam Hocevar <sam@zoy.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "config.h"
+
+#include "FTFace.h"
+#include "FTCharmap.h"
+
+
+FTCharmap::FTCharmap(FTFace* face)
+:   ftFace(*(face->Face())),
+    err(0)
+{
+    if(!ftFace->charmap)
+    {
+        if(!ftFace->num_charmaps)
+        {
+            // This face doesn't even have one charmap!
+            err = 0x96; // Invalid_CharMap_Format
+            return;
+        }
+
+        err = FT_Set_Charmap(ftFace, ftFace->charmaps[0]);
+    }
+
+    ftEncoding = ftFace->charmap->encoding;
+
+    for(unsigned int i = 0; i < FTCharmap::MAX_PRECOMPUTED; i++)
+    {
+        charIndexCache[i] = FT_Get_Char_Index(ftFace, i);
+    }
+}
+
+
+FTCharmap::~FTCharmap()
+{
+    charMap.clear();
+}
+
+
+bool FTCharmap::CharMap(FT_Encoding encoding)
+{
+    if(ftEncoding == encoding)
+    {
+        err = 0;
+        return true;
+    }
+
+    err = FT_Select_Charmap(ftFace, encoding);
+
+    if(!err)
+    {
+        ftEncoding = encoding;
+        charMap.clear();
+    }
+
+    return !err;
+}
+
+
+unsigned int FTCharmap::GlyphListIndex(const unsigned int characterCode)
+{
+    return charMap.find(characterCode);
+}
+
+
+unsigned int FTCharmap::FontIndex(const unsigned int characterCode)
+{
+    if(characterCode < FTCharmap::MAX_PRECOMPUTED)
+    {
+        return charIndexCache[characterCode];
+    }
+
+    return FT_Get_Char_Index(ftFace, characterCode);
+}
+
+
+void FTCharmap::InsertIndex(const unsigned int characterCode,
+                            const size_t containerIndex)
+{
+    charMap.insert(characterCode, static_cast<FTCharToGlyphIndexMap::GlyphIndex>(containerIndex));
+}
+