Initial community commit

Src/libvp6/include/FourCC.hpp

@@ -0,0 +1,110 @@
+#ifndef FOURCC_HPP
+#define FOURCC_HPP
+
+#include <iosfwd>
+#include <cstring>
+
+
+#if defined(__POWERPC__) || defined(__APPLE__) || defined(__MERKS__)
+using namespace std;
+#endif
+
+class FourCC
+{
+public:  
+
+    FourCC();
+    FourCC(const char*);
+    explicit FourCC(unsigned long);
+
+    bool operator==(const FourCC&) const;
+    bool operator!=(const FourCC&) const;
+
+    bool operator==(const char*) const;
+    bool operator!=(const char*) const;
+
+    operator unsigned long() const;
+    unsigned long asLong() const;
+
+    FourCC& operator=(unsigned long);
+
+    char operator[](int) const;
+
+    std::ostream& put(std::ostream&) const;
+
+    bool printable() const;
+
+private:
+
+    union
+    {
+        char code[4];
+        unsigned long codeAsLong;
+    };
+
+};
+
+
+inline FourCC::FourCC()
+{
+}
+
+inline FourCC::FourCC(unsigned long x)
+    : codeAsLong(x)
+{
+}
+
+inline FourCC::FourCC(const char* str)
+{
+    memcpy(code, str, 4);
+}
+
+
+inline bool FourCC::operator==(const FourCC& rhs) const
+{
+    return codeAsLong == rhs.codeAsLong;
+}
+
+inline bool FourCC::operator!=(const FourCC& rhs) const
+{
+    return !operator==(rhs);
+}
+
+inline bool FourCC::operator==(const char* rhs) const
+{
+    return (memcmp(code, rhs, 4) == 0);
+}
+
+inline bool FourCC::operator!=(const char* rhs) const
+{
+    return !operator==(rhs);
+}
+
+
+inline FourCC::operator unsigned long() const
+{
+    return codeAsLong;
+}
+
+inline unsigned long FourCC::asLong() const
+{
+    return codeAsLong;
+}
+
+inline char FourCC::operator[](int i) const
+{
+    return code[i];
+}
+
+inline FourCC& FourCC::operator=(unsigned long val)
+{
+    codeAsLong = val;
+    return *this;
+}
+
+inline std::ostream& operator<<(std::ostream& os, const FourCC& rhs)
+{
+    return rhs.put(os);
+}
+
+#endif