initial commit

lib/fontParser/tables/head.cpp

@@ -0,0 +1,93 @@
+#include "head.h"
+#include <arpa/inet.h>
+
+Head::Head(const std::string& p_tag, uint32_t p_checkSum, uint32_t p_offset, uint32_t p_length):
+    Table(p_tag, p_checkSum, p_offset, p_length),
+    fontRevisionMajor(0),
+    fontRevisionMinor(0),
+    flags(0),
+    unitsPerEm(0),
+    xMin(0),
+    yMin(0),
+    xMax(0),
+    yMax(0),
+    macStyle(0),
+    lowestRecPPEM(0),
+    fontDirectionHint(0),
+    indexToLocFormat(0)
+{
+}
+
+Head::~Head()
+{
+}
+
+void Head::read(const std::string& path)
+{
+    char * buffer;
+    buffer = new char[2];
+    
+    std::ifstream file(path, std::ios::in | std::ios::binary);
+    file.seekg(offset);
+    
+    file.read(buffer, 2);   //version is not interesting, it is always 16.16 fixed point number equals to "1.0";
+    file.read(buffer, 2);   //version is not interesting, it is always 16.16 fixed point number equals to "1.0";
+    
+    file.read(buffer, 2);
+    fontRevisionMajor = ntohs(*((uint16_t*) buffer));
+    
+    file.read(buffer, 2);
+    fontRevisionMinor = ntohs(*((uint16_t*) buffer));
+    
+    delete[] buffer;
+    buffer = new char[4];
+    file.read(buffer, 4);   //checkSumAdjustment - it's something fishy, no idea what to use it for;
+    file.read(buffer, 4);   //magicNumber, always set to 0x5f0f3cf5;
+    delete[] buffer;
+    buffer = new char[2];
+    
+    file.read(buffer, 2);
+    flags = ntohs(*((uint16_t*) buffer));
+    
+    file.read(buffer, 2);
+    unitsPerEm = ntohs(*((uint16_t*) buffer));
+
+    file.read(buffer, 2);   //creation date is a signed int64 
+    file.read(buffer, 2);
+    file.read(buffer, 2);
+    file.read(buffer, 2);
+    
+    file.read(buffer, 2);   //last modification date is a signed int64 
+    file.read(buffer, 2);
+    file.read(buffer, 2);
+    file.read(buffer, 2);
+    
+    file.read(buffer, 2);
+    xMin = ntohs(*((int16_t*) buffer));
+    
+    file.read(buffer, 2);
+    yMin = ntohs(*((int16_t*) buffer));
+    
+    file.read(buffer, 2);
+    xMax = ntohs(*((int16_t*) buffer));
+    
+    file.read(buffer, 2);
+    yMax = ntohs(*((int16_t*) buffer));
+    
+    file.read(buffer, 2);
+    macStyle = ntohs(*((uint16_t*) buffer));
+    
+    file.read(buffer, 2);
+    lowestRecPPEM = ntohs(*((uint16_t*) buffer));
+    
+    file.read(buffer, 2);
+    fontDirectionHint = ntohs(*((int16_t*) buffer));
+    
+    file.read(buffer, 2);
+    indexToLocFormat = ntohs(*((int16_t*) buffer));
+    
+    //and there is stil uint16 glyph data format, but its always 0;
+    
+    file.close();
+    delete[] buffer;
+}