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/************************************************************************
************************************************************************
FAUST compiler
Copyright (C) 2003-2018 GRAME, Centre National de Creation Musicale
---------------------------------------------------------------------
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
************************************************************************
************************************************************************/
#include <stdlib.h>
#include <iostream>
#include <sstream>
#include "floats.hh"
#include "global.hh"
#define FLOATMACRO "FAUSTFLOAT"
#define FLOATMACROPTR "FAUSTFLOAT*"
#define FLOATCASTER "(" FLOATMACRO ")"
//-----------------------------------------------
// float size coding :
//-----------------------------------------------
// 0: external float (macro name)
// 1: single precision float
// 2: double precision float
// 3: long double precision float
static const char* mathsuffix[4]; // suffix for math functions
static const char* numsuffix[4]; // suffix for numeric constants
static const char* floatname[4]; // float types
static const char* castname[4]; // float castings
static double floatmin[4]; // minimum float values before denormals
void initFaustFloat()
{
// Using in FIR code generation to code math functions type (float/double/quad), same for Rust and C/C++ backends
mathsuffix[0] = "";
mathsuffix[1] = "f";
mathsuffix[2] = "";
mathsuffix[3] = "l";
// Specific for Rust backend
if (gGlobal->gOutputLang == "rust") {
numsuffix[0] = "";
numsuffix[1] = "";
numsuffix[2] = "";
numsuffix[3] = "";
floatname[0] = FLOATMACRO;
floatname[1] = "F32";
floatname[2] = "F64";
floatname[3] = "dummy";
castname[0] = FLOATCASTER;
castname[1] = "as F32";
castname[2] = "as F64";
castname[3] = "(dummy)";
floatmin[0] = 0;
floatmin[1] = FLT_MIN;
floatmin[2] = DBL_MIN;
floatmin[3] = LDBL_MIN;
// Specific for D backend
}
else if (gGlobal->gOutputLang == "dlang") {
numsuffix[0] = "";
numsuffix[1] = "";
numsuffix[2] = "";
numsuffix[3] = "";
floatname[0] = FLOATMACRO;
floatname[1] = "float";
floatname[2] = "double";
floatname[3] = "real";
castname[0] = FLOATCASTER;
castname[1] = "cast(float)";
castname[2] = "cast(double)";
castname[3] = "cast(real)";
floatmin[0] = 0;
floatmin[1] = FLT_MIN;
floatmin[2] = DBL_MIN;
floatmin[3] = LDBL_MIN;
// Specific for C/C++ backends
}
else {
numsuffix[0] = "";
numsuffix[1] = "f";
numsuffix[2] = "";
numsuffix[3] = "L";
floatname[0] = FLOATMACRO;
floatname[1] = "float";
floatname[2] = "double";
floatname[3] = "quad";
castname[0] = FLOATCASTER;
castname[1] = "(float)";
castname[2] = "(double)";
castname[3] = "(quad)";
floatmin[0] = 0;
floatmin[1] = FLT_MIN;
floatmin[2] = DBL_MIN;
floatmin[3] = LDBL_MIN;
}
}
const char* isuffix()
{
return mathsuffix[gGlobal->gFloatSize];
} ///< suffix for math functions
const char* inumix()
{
return numsuffix[gGlobal->gFloatSize];
} ///< suffix for numeric constants
const char* ifloat()
{
return floatname[gGlobal->gFloatSize];
}
const char* icast()
{
return castname[gGlobal->gFloatSize];
}
double inummin()
{
return floatmin[gGlobal->gFloatSize];
}
const char* xfloat()
{
return floatname[0];
}
const char* xcast()
{
return castname[0];
}
int ifloatsize()
{
switch (gGlobal->gFloatSize) {
case 1:
return 4;
case 2:
return 8;
case 3:
return 16;
default:
faustassert(false);
return 0;
}
}
Typed::VarType itfloat()
{
switch (gGlobal->gFloatSize) {
case 1:
return Typed::kFloat;
case 2:
return Typed::kDouble;
case 3:
return Typed::kQuad;
default:
faustassert(false);
return Typed::kNoType;
}
}
Typed::VarType itfloatptr()
{
switch (gGlobal->gFloatSize) {
case 1:
return Typed::kFloat_ptr;
case 2:
return Typed::kDouble_ptr;
case 3:
return Typed::kQuad_ptr;
default:
faustassert(false);
return Typed::kNoType;
}
}
void printfloatdef(std::ostream& fout, bool quad)
{
fout << "#ifndef " << FLOATMACRO << std::endl;
fout << "#define " << FLOATMACRO << " float" << std::endl;
fout << "#endif " << std::endl;
fout << std::endl;
if (quad) {
fout << "typedef long double quad;" << std::endl;
}
}
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