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#include <iostream>
#include <sstream>
#include "register_address.h"
register_address::register_address(
register_type type,
unsigned int index,
enum swizzle swizzle)
:
m_type(type),
m_index(index),
m_swizzle(swizzle)
{ }
register_address::register_address() :
m_type(REGISTER_TYPE_NONE),
m_index(0),
m_swizzle(SWIZZLE_EMPTY)
{ }
register_address::register_address(
register_type type,
unsigned int int_val)
:
m_type(type)
{
unsigned int swz_val = int_val % 4;
switch (swz_val) {
case 0: m_swizzle = SWIZZLE_X; break;
case 1: m_swizzle = SWIZZLE_Y; break;
case 2: m_swizzle = SWIZZLE_Z; break;
case 3: m_swizzle = SWIZZLE_W; break;
}
m_index = int_val / 4;
}
std::string
register_address::to_string()
{
std::ostringstream s;
s << register_address::register_type_to_string(m_type) << "[" << m_index << "]." <<
swizzle_to_string(m_swizzle);
return s.str();
}
std::string
register_address::register_type_to_string(enum register_type type)
{
switch(type) {
case REGISTER_TYPE_TEMP: return "TEMP";
case REGISTER_TYPE_CONST: return "CONST";
case REGISTER_TYPE_IN: return "IN";
case REGISTER_TYPE_OUT: return "OUT";
case REGISTER_TYPE_IMMEDIATE: return "IMM";
case REGISTER_TYPE_PRIVATE: return "PRIV";
default: return "NONE";
}
}
std::string
register_address::swizzle_to_string(enum swizzle swz)
{
switch(swz) {
case SWIZZLE_EMPTY: return "_";
case SWIZZLE_X: return "x";
case SWIZZLE_Y: return "y";
case SWIZZLE_Z: return "z";
case SWIZZLE_W: return "w";
default: return "?";
}
}
unsigned int
register_address::to_int()
{
unsigned int swz_val;
switch(m_swizzle) {
case SWIZZLE_X: swz_val = 0; break;
case SWIZZLE_Y: swz_val = 1; break;
case SWIZZLE_Z: swz_val = 2; break;
case SWIZZLE_W: swz_val = 3; break;
case SWIZZLE_EMPTY:
if (m_type == REGISTER_TYPE_NONE) {
return 0;
}
/* Fall through */
default:
std::cerr << __FUNCTION__ << ": unhandled swizzle: " <<
m_swizzle << "\n";
return 0;
}
return (m_index * 4) + swz_val;
}
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