void ImposterCapture::_colorAverageFilter( U32 dimensions, const U8 *inBmpBits, U8 *outBmpBits )
{
ColorF color;
U32 count = 0;
U32 index, index2;
for ( S32 y = 0; y < dimensions; y++ )
{
for( S32 x = 0; x < dimensions; x++ )
{
// We only blend on transparent pixels.
index = ( ( y * dimensions ) + x ) * 4;
if ( inBmpBits[index+3] > 84 )
{
outBmpBits[index+0] = inBmpBits[index+0];
outBmpBits[index+1] = inBmpBits[index+1];
outBmpBits[index+2] = inBmpBits[index+2];
outBmpBits[index+3] = inBmpBits[index+3]; //hack
continue;
}
color.set(0,0,0);
count = 0;
for ( S32 fy = y-6; fy <= y+6; fy++ )
{
for ( S32 fx = x-6; fx <= x+6; fx++ )
{
if ( fy >= 0 && fy < (dimensions-1) &&
fx >= 0 && fx < (dimensions-1) )
{
index2 = ( ( fy * dimensions ) + fx ) * 4;
if ( inBmpBits[index2+3] > 84 )
{
color.red += inBmpBits[index2+0];
color.green += inBmpBits[index2+1];
color.blue += inBmpBits[index2+2];
++count;
}
}
}
}
outBmpBits[index+0] = (U8)( (F32)color.red / (F32)count );
outBmpBits[index+1] = (U8)( (F32)color.green / (F32)count );
outBmpBits[index+2] = (U8)( (F32)color.blue / (F32)count );
outBmpBits[index+3] = 0;
}
}
}
void TimeOfDay::_initColors()
{
// NOTE: The elevation targets represent distances
// from PI/2 radians (strait up).
ColorF c;
ColorF bc;
// e is for elevation
F32 e = M_PI_F / 13.0f; // (semicircle in radians)/(number of color target entries);
// Day
c.set(1.0f,1.0f,1.0f);
_addColorTarget(0, c, 1.0f, c); // High noon at equanox
c.set(.9f,.9f,.9f);
_addColorTarget(e * 1.0f, c, 1.0f, c);
c.set(.9f,.9f,.9f);
_addColorTarget(e * 2.0f, c, 1.0f, c);
c.set(.8f,.75f,.75f);
_addColorTarget(e * 3.0f, c, 1.0f, c);
c.set(.7f,.65f,.65f);
_addColorTarget(e * 4.0f, c, 1.0f, c);
//Dawn and Dusk (3 entries)
c.set(.7f,.65f,.65f);
bc.set(.8f,.6f,.3f);
_addColorTarget(e * 5.0f, c, 3.0f, bc);
c.set(.65f,.54f,.4f);
bc.set(.75f,.5f,.4f);
_addColorTarget(e * 6.0f, c, 2.75f, bc);
c.set(.55f,.45f,.25f);
bc.set(.65f,.3f,.3f);
_addColorTarget(e * 7.0f, c, 2.5f, bc);
//NIGHT
c.set(.3f,.3f,.3f);
bc.set(.7f,.4f,.2f);
_addColorTarget(e * 8.0f, c, 1.25f, bc);
c.set(.25f,.25f,.3f);
bc.set(.8f,.3f,.2f);
_addColorTarget(e * 9.0f, c, 1.00f, bc);
c.set(.25f,.25f,.4f);
_addColorTarget(e * 10.0f, c, 1.0f, c);
c.set(.2f,.2f,.35f);
_addColorTarget(e * 11.0f, c, 1.0f, c);
c.set(.15f,.15f,.2f);
_addColorTarget(M_PI_F, c, 1.0f, c); // Midnight at equanox.
}
