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/*
* PROPRIETARY INFORMATION. This software is proprietary to POWDER
* Development, and is not to be reproduced, transmitted, or disclosed
* in any way without written permission.
*
* Produced by: Jeff Lait
*
* POWDER Development
*
* NAME: intrinsic.cpp ( POWDER Library, C++ )
*
* COMMENTS:
* Bit field functions for handling intrinsics...
*/
#include "intrinsic.h"
#include "assert.h"
#include "sramstream.h"
INTRINSIC::INTRINSIC()
{
memset(myData, 0, (NUM_INTRINSICS + 7) / 8);
}
INTRINSIC::INTRINSIC(const char *rawstr)
{
loadFromString(rawstr);
}
void
INTRINSIC::loadFromString(const char *rawstr)
{
clearAll();
mergeFromString(rawstr);
}
void
INTRINSIC::mergeFromString(const char *rawstr)
{
if (!rawstr)
return;
while (*rawstr)
{
setIntrinsic( (INTRINSIC_NAMES) ((u8)*rawstr) );
rawstr++;
}
}
void
INTRINSIC::clearAll()
{
memset(myData, 0, (NUM_INTRINSICS + 7) / 8);
}
void
INTRINSIC::save(SRAMSTREAM &os)
{
int i;
for (i = 0; i < ((NUM_INTRINSICS + 7) / 8); i++)
{
os.write(myData[i], 8);
}
}
void
INTRINSIC::load(SRAMSTREAM &is)
{
int i, val;
for (i = 0; i < ((NUM_INTRINSICS + 7) / 8); i++)
{
is.uread(val, 8);
myData[i] = val;
}
}
bool
INTRINSIC::hasIntrinsic(const char *rawstr, INTRINSIC_NAMES intrinsic)
{
if (!rawstr)
return false;
while (*rawstr)
{
if ( ((u8)*rawstr) == intrinsic )
return true;
rawstr++;
}
return false;
}
bool
INTRINSIC::hasIntrinsic(INTRINSIC_NAMES intrinsic) const
{
int byte, bit, mask;
if (intrinsic == INTRINSIC_NONE)
return false;
UT_ASSERT(intrinsic < NUM_INTRINSICS);
bit = intrinsic - 1;
byte = bit >> 3;
bit &= 7;
mask = 1 << bit;
return (myData[byte] & mask) ? true : false;
}
bool
INTRINSIC::toggleIntrinsic(INTRINSIC_NAMES intrinsic)
{
int byte, bit, mask;
if (intrinsic == INTRINSIC_NONE)
return false;
UT_ASSERT(intrinsic < NUM_INTRINSICS);
bit = intrinsic - 1;
byte = bit >> 3;
bit &= 7;
mask = 1 << bit;
if (myData[byte] & mask)
{
myData[byte] &= ~mask;
return true;
}
myData[byte] |= mask;
return true;
}
bool
INTRINSIC::setIntrinsic(INTRINSIC_NAMES intrinsic, bool newval)
{
if (!newval)
return clearIntrinsic(intrinsic);
if (intrinsic == INTRINSIC_NONE)
return false;
int byte, bit, mask;
bool ret = false;
UT_ASSERT(intrinsic < NUM_INTRINSICS);
bit = intrinsic - 1;
byte = bit >> 3;
bit &= 7;
mask = 1 << bit;
if (myData[byte] & mask)
ret = true;
else
myData[byte] |= mask;
return ret;
}
bool
INTRINSIC::clearIntrinsic(INTRINSIC_NAMES intrinsic)
{
int byte, bit, mask;
bool ret = false;
if (intrinsic == INTRINSIC_NONE)
return false;
UT_ASSERT(intrinsic < NUM_INTRINSICS);
bit = intrinsic - 1;
byte = bit >> 3;
bit &= 7;
mask = 1 << bit;
if (myData[byte] & mask)
{
ret = true;
myData[byte] &= ~mask;
}
return ret;
}
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