// static
void FormatConversion::image3ubToImage4f( const Image3ub& source, Image4f& destination, bool flipUpDown, float fillAlpha )
{
int width = source.width();
int height = source.height();
for( int y = 0; y < height; ++y )
{
int yy = y;
if( flipUpDown )
{
yy = height - y - 1;
}
for( int x = 0; x < width; ++x )
{
Vector3i input = source.pixel( x, y );
Vector3f output = ColorUtils::intToFloat( input );
destination.setPixel( x, yy, Vector4f( output, fillAlpha ) );
}
}
}
// static
void FormatConversion::image4fToImage3ub( const Image4f& source, Image3ub& destination, bool flipUpDown )
{
int width = source.width();
int height = source.height();
for( int y = 0; y < height; ++y )
{
int yy = y;
if( flipUpDown )
{
yy = height - y - 1;
}
for( int x = 0; x < width; ++x )
{
Vector4f input = source.pixel( x, y );
Vector3i output = ColorUtils::floatToInt( input ).xyz();
destination.setPixel( x, yy, output );
}
}
}
void Texture2::Load(const Image3ub& img, bool linear, bool mipmaps)
{
Load(img.width(), img.height(), img.data(), linear, mipmaps);
}