#ifndef CGNV2RT_HEADER
#define CGNV2RT_HEADER

#include <stdio.h>
#include <vector>
#include <string.h>

#ifndef CGNV2ELF_VERSION
#define CGNV2ELF_VERSION 6365
#define CGNV2ELF_PRODUCT_STRING "cgnv2elf"
#define CGNV2ELF_VERSION_NOTE_TYPE 0
#endif

#define CNV2END(val) convert_endianness((val), elfEndianness)
#define ENDSWAP(val) convert_endianness((val), (host_endianness() == 1) ? 2 : 1)

static unsigned int stringTableAdd( std::vector<char> &stringTable, const char* str )
{
   unsigned int ret = (unsigned int)stringTable.size();

   if ( ret == 0 )
   {
      stringTable.push_back('\0');
      ret = 1;
   }

   size_t stringLength = strlen(str) + 1;
   stringTable.resize(ret + stringLength);
   memcpy(&stringTable[0] + ret,str,stringLength);

   return ret;
}

static unsigned int stringTableFind( std::vector<char> &stringTable, const char* str  )
{
   const char* data = &stringTable[0];
   size_t size = stringTable.size();
   const char *end = data + size;

   size_t length = strlen(str);

   if (length+1 > size)
	   return 0;

   data += length;

   const char *p = (char*)memchr(data,'\0',end-data);
   while (p && (end-data)>0)
   {
	   if (!memcmp(p - length, str, length))
              return (unsigned int)(p - length - &stringTable[0]);

	   data = p+1;	
	   p = (char*)memchr(data,'\0',end-data);
   }
   return 0;
}

static unsigned int stringTableAddUnique( std::vector<char> &stringTable, const char* str )
{
   if ( stringTable.size() == 0 )
      stringTable.push_back('\0');

   unsigned int ret = stringTableFind(stringTable, str);

   if (ret == 0 && str[0] != '\0')
      ret = stringTableAdd(stringTable, str);

   return ret;
}

int convertNvToElfFromFile(const char *sourceFile, int endianness, int constTableOffset, void **binaryShader, int *size, std::vector<char> &stringTable, std::vector<float> &defaultValues);
int convertNvToElfFromMemory(const void *sourceData, size_t size, int endianness, int constTableOffset, void **binaryShader, int *binarySize, std::vector<char> &stringTable, std::vector<float> &defaultValues);

int convertNvToElfFreeBinaryShader(void *binaryShader);

#endif