//-----------------------------------------------------------------------------
// Torque Game Engine
// Copyright (C) GarageGames.com, Inc.
//-----------------------------------------------------------------------------

#include "platform/platform.h"
#include "console/console.h"
#include "math/mMath.h"


extern void mInstallLibrary_C();
extern void mInstallLibrary_ASM();


extern void mInstall_AMD_Math();
extern void mInstall_Library_SSE();


//--------------------------------------
ConsoleFunction( mathInit, void, 1, 10, "( ... )"
                "Install the math library with specified extensions.\n\n"
                "Possible parameters are:\n"
                "    - 'DETECT' Autodetect math lib settings.\n"
                "    - 'C' Enable the C math routines. C routines are always enabled.\n"
                "    - 'FPU' Enable floating point unit routines.\n"
                "    - 'MMX' Enable MMX math routines.\n"
                "    - '3DNOW' Enable 3dNow! math routines.\n"
                "    - 'SSE' Enable SSE math routines.\n")


{
   U32 properties = CPU_PROP_C;  // C entensions are always used

   if (argc == 1)
   {
         Math::init(0);
         return;
   }
   for (argc--, argv++; argc; argc--, argv++)
   {
      if (dStricmp(*argv, "DETECT") == 0) {
         Math::init(0);
         return;
      }
      if (dStricmp(*argv, "C") == 0) {
         properties |= CPU_PROP_C;
         continue;
      }
      if (dStricmp(*argv, "FPU") == 0) {
         properties |= CPU_PROP_FPU;
         continue;
      }
      if (dStricmp(*argv, "MMX") == 0) {
         properties |= CPU_PROP_MMX;
         continue;
      }
      if (dStricmp(*argv, "3DNOW") == 0) {
         properties |= CPU_PROP_3DNOW;
         continue;
      }
      if (dStricmp(*argv, "SSE") == 0) {
         properties |= CPU_PROP_SSE;
         continue;
      }
      Con::printf("Error: MathInit(): ignoring unknown math extension '%s'", *argv);
   }
   Math::init(properties);
}



//------------------------------------------------------------------------------
void Math::init(U32 properties)
{
   if (!properties)
      // detect what's available
      properties = Platform::SystemInfo.processor.properties;
   else
      // Make sure we're not asking for anything that's not supported
      properties &= Platform::SystemInfo.processor.properties;

   Con::printf("Math Init:");
   Con::printf("   Installing Standard C extensions");
   mInstallLibrary_C();

   Con::printf("   Installing Assembly extensions");
   mInstallLibrary_ASM();

   if (properties & CPU_PROP_FPU)
   {
      Con::printf("   Installing FPU extensions");
   }

   if (properties & CPU_PROP_MMX)
   {
      Con::printf("   Installing MMX extensions");
      if (properties & CPU_PROP_3DNOW)
      {
         Con::printf("   Installing 3DNow extensions");
         mInstall_AMD_Math();
      }
   }

   if (properties & CPU_PROP_SSE)
   {
      Con::printf("   Installing SSE extensions");
      mInstall_Library_SSE();
   }

   Con::printf(" ");
}