initial commit

lib/fontParser/tables/cmap.h

@@ -0,0 +1,66 @@
+#ifndef CMAP_H
+#define CMAP_H
+
+#include "table.h"
+#include <list>
+#include <map>
+#include <vector>
+
+struct Enc {
+    Enc(uint16_t pid, uint16_t eid, uint32_t off): platformId(pid), encodingId(eid), offset(off) {}
+    
+    uint16_t platformId;
+    uint16_t encodingId;
+    uint32_t offset;
+};
+
+class MappingTable {
+protected:
+    MappingTable(uint16_t p_f);
+    
+    uint16_t format;
+    
+public:
+    static MappingTable* fromIfStream(std::ifstream& file);
+    virtual ~MappingTable();
+    virtual uint32_t getCID(uint32_t charCode) const = 0;
+};
+
+class Format4 : public MappingTable {
+public:
+    Format4(char* data, uint16_t length);
+    ~Format4();
+    
+    uint32_t getCID(uint32_t charCode) const override;
+    
+private:
+    struct SegParams {
+        uint16_t endCode;
+        uint16_t startCode;
+        int16_t idDelta;
+        uint16_t idRangeOffset;
+    };
+    
+    std::map<uint16_t, uint16_t> charCodesEndCode;
+    std::vector<SegParams>* segments;
+    std::vector<uint16_t>* glyphIndexArray;
+};
+
+class Cmap : public Table
+{
+public:
+    Cmap(const std::string& p_tag, uint32_t p_checkSum, uint32_t p_offset, uint32_t p_length);
+    ~Cmap();
+    
+    void read(const std::string & path) override;
+    uint32_t getCID(uint32_t charCode) const;
+    
+    uint16_t version;
+    uint16_t numberOfTables;
+    
+private:
+    bool initialized;
+    MappingTable* mt;
+};
+
+#endif // CMAP_H