static void do_colorbalance_lgg(bNode *node, float* out, float *in)
{
NodeColorBalance *n= (NodeColorBalance *)node->storage;
out[0] = colorbalance_lgg(in[0], n->lift_lgg[0], n->gamma_inv[0], n->gain[0]);
out[1] = colorbalance_lgg(in[1], n->lift_lgg[1], n->gamma_inv[1], n->gain[1]);
out[2] = colorbalance_lgg(in[2], n->lift_lgg[2], n->gamma_inv[2], n->gain[2]);
out[3] = in[3];
}
static void do_colorbalance_lgg_fac(bNode *node, float* out, float *in, float *fac)
{
NodeColorBalance *n= (NodeColorBalance *)node->storage;
const float mfac= 1.0f - *fac;
out[0] = mfac*in[0] + *fac * colorbalance_lgg(in[0], n->lift_lgg[0], n->gamma_inv[0], n->gain[0]);
out[1] = mfac*in[1] + *fac * colorbalance_lgg(in[1], n->lift_lgg[1], n->gamma_inv[1], n->gain[1]);
out[2] = mfac*in[2] + *fac * colorbalance_lgg(in[2], n->lift_lgg[2], n->gamma_inv[2], n->gain[2]);
out[3] = in[3];
}
void ColorBalanceLGGOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
{
float inputColor[4];
float value[4];
this->m_inputValueOperation->read(value, x, y, sampler);
this->m_inputColorOperation->read(inputColor, x, y, sampler);
float fac = value[0];
fac = min(1.0f, fac);
const float mfac = 1.0f - fac;
output[0] = mfac * inputColor[0] + fac * colorbalance_lgg(inputColor[0], this->m_lift[0], this->m_gamma_inv[0], this->m_gain[0]);
output[1] = mfac * inputColor[1] + fac * colorbalance_lgg(inputColor[1], this->m_lift[1], this->m_gamma_inv[1], this->m_gain[1]);
output[2] = mfac * inputColor[2] + fac * colorbalance_lgg(inputColor[2], this->m_lift[2], this->m_gamma_inv[2], this->m_gain[2]);
output[3] = inputColor[3];
}
