blob: 2dcf3ec656405764b58ba7983725a15daf00113a (
plain)
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{
uchar* aWPtr = mRLAlphaData;
if (mWidth==1)
{
memset(aWPtr,1,mHeight);
}
else
{
for (int aRow = 0; aRow < mHeight; aRow++)
{
int aRCount = 1;
int aRLCount = 1;
int anAVal = NEXT_SRC_COLOR >> 24;
int aLastAClass = (anAVal == 0) ? 0 : (anAVal == 255) ? 1 : 2;
while (aRCount < mWidth)
{
aRCount++;
anAVal = NEXT_SRC_COLOR >> 24;
int aThisAClass = (anAVal == 0) ? 0 : (anAVal == 255) ? 1 : 2;
if ((aThisAClass != aLastAClass) || (aRCount == mWidth))
{
if (aThisAClass == aLastAClass)
aRLCount++;
for (int i = aRLCount; i > 0; i--)
{
if (i >= 255)
*aWPtr++ = 255;
else
*aWPtr++ = i;
}
if ((aRCount == mWidth) && (aThisAClass != aLastAClass))
*aWPtr++ = 1;
aLastAClass = aThisAClass;
aRLCount = 1;
}
else
{
aRLCount++;
}
}
}
}
}
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