void LinearFilter::set_kernel_radius(int radius)
{
radius_ = radius;
if (mode_ == false) {
kernel_ = new double*[radius_];
for (int i = 0; i < radius_; ++i)
kernel_[i] = new double[radius_];
GenerateKernel();
}
else {
separable_kernel_x_ = new double[radius_];
separable_kernel_y_ = new double[radius_];
GenerateSeparableKernel();
}
}
void LinearFilter::GenerateCorrectKernel()
{
if (mode_ == SEPARABLE)
GenerateSeparableKernel();
else GenerateKernel();
}
void FastBlurCubemap::DoTask(const Texture& inputTex, Texture& outputTex)
{
if (!inputTex.m_cubemap)
{
printf("Error: For this task required cubmap.\n");
return;
}
outputTex = inputTex;
int radius = m_blurRadius;
int kernelSize = 2 * radius + 1;
std::vector<double> kernel = GenerateKernel(1.0 / 3.0 * radius, kernelSize, 1000.0);
Texture tmpTex = outputTex;
Texture tmpTex2 = outputTex;
Texture resTex = outputTex;
for(int k = 0; k <6; ++k)
{
tmpTex = outputTex;
tmpTex2 = outputTex;
for(int ki = 0; ki <6; ++ki)
{
for (int i = 0;i<outputTex.m_height;i++)
{
for (int j = 0;j<outputTex.m_width;j++)
{
fpixel s(0.0, 0.0, 0.0);
for(int n = -radius; n < radius+1; ++n)
{
int j_ = j + n;
int k_ = ki;
if (ki != 2 && ki != 3)
{
if (j_ < 0)
{
j_ += outputTex.m_width;
switch(ki)
{
case 4:k_ = 0; break;
case 5:k_ = 1; break;
case 0:k_ = 5; break;
case 1:k_ = 4; break;
}
}
if (j_ >= outputTex.m_width)
{
j_ -= outputTex.m_width;
switch(ki)
{
case 0:k_ = 4; break;
case 1:k_ = 5; break;
case 5:k_ = 0; break;
case 4:k_ = 1; break;
}
}
s += outputTex.m_faces[k_].m_buff[j_ + i*outputTex.m_width] * kernel[n + radius];
}
else
{
if(k!= 0 && k!= 1)
{
if (ki==2)
{
if (j_ < 0)
{
j_ += outputTex.m_width;
k_ = 0;
s += outputTex.m_faces[k_].m_buff[(outputTex.m_width - i - 1) + j_*outputTex.m_width] * kernel[n + radius];
}
else if (j_ >= outputTex.m_width)
{
j_ -= outputTex.m_width;
j_ = outputTex.m_height - j_ - 1;
k_ = 1;
s += outputTex.m_faces[k_].m_buff[i + j_*outputTex.m_width] * kernel[n + radius];
}
else
{
s += outputTex.m_faces[k_].m_buff[j_ + i*outputTex.m_width] * kernel[n + radius];
}
}
else//ki = 3
{
if (j_ < 0)
{
j_ += outputTex.m_width;
k_ = 0;
s += outputTex.m_faces[k_].m_buff[i + (outputTex.m_height - j_ - 1)*outputTex.m_width] * kernel[n + radius];
}
else if (j_ >= outputTex.m_width)
{
j_ -= outputTex.m_width;
j_ = outputTex.m_height - j_ - 1;
k_ = 1;
s += outputTex.m_faces[k_].m_buff[(outputTex.m_width - i - 1) + (outputTex.m_height - j_ - 1)*outputTex.m_width] * kernel[n + radius];
}
else
{
s += outputTex.m_faces[k_].m_buff[j_ + i*outputTex.m_width] * kernel[n + radius];
}
}
}
else
{
int i_ = i + n;
int k_ = ki;
if (ki == 2)
{
if (i_ < 0)
{
i_ += outputTex.m_height;
k_ = 4;
s += outputTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
else if (i_ >= outputTex.m_width)
{
i_ -= outputTex.m_width;
i_ = outputTex.m_height - i_ - 1;
k_ = 5;
s += outputTex.m_faces[k_].m_buff[(outputTex.m_width - j - 1) + i_*outputTex.m_width] * kernel[n + radius];
}
else
{
s += outputTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
}
if (ki == 3)
{
if (i_ < 0)
{
i_ += outputTex.m_height;
i_ = outputTex.m_height - i_ - 1;
k_ = 5;
s += outputTex.m_faces[k_].m_buff[(outputTex.m_width - j - 1) + i_*outputTex.m_width] * kernel[n + radius];
}
else if (i_ >= outputTex.m_width)
{
i_ -= outputTex.m_width;
k_ = 4;
s += outputTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
else
{
s += outputTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
}
}
}
}
tmpTex.m_faces[ki].m_buff[j + i*outputTex.m_width] = s;
}
}
}
for (int j = 0 ;j<outputTex.m_width;j++)
{
for (int i = 0;i<outputTex.m_height;i++)
{
fpixel s(0.0, 0.0, 0.0);
for(int n = -radius; n < radius+1; ++n)
{
int i_ = i + n;
int k_ = k;
if (k == 2)
{
if (i_ < 0)
{
i_ += outputTex.m_height;
k_ = 4;
s += tmpTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
else if (i_ >= outputTex.m_width)
{
i_ -= outputTex.m_width;
i_ = outputTex.m_height - i_ - 1;
k_ = 5;
s += tmpTex.m_faces[k_].m_buff[(outputTex.m_width - j - 1) + i_*outputTex.m_width] * kernel[n + radius];
}
else
{
s += tmpTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
}
if (k == 3)
{
if (i_ < 0)
{
i_ += outputTex.m_height;
i_ = outputTex.m_height - i_ - 1;
k_ = 5;
s += tmpTex.m_faces[k_].m_buff[(outputTex.m_width - j - 1) + i_*outputTex.m_width] * kernel[n + radius];
}
else if (i_ >= outputTex.m_width)
{
i_ -= outputTex.m_width;
k_ = 4;
s += tmpTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
else
{
s += tmpTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
}
else if(k == 5)
{
if (i_ < 0)
{
i_ += outputTex.m_height;
i_ = outputTex.m_height - i_ - 1;
k_ = 3;
s += tmpTex.m_faces[k_].m_buff[(outputTex.m_width - j - 1) + i_*outputTex.m_width] * kernel[n + radius];
}
else if (i_ >= outputTex.m_width)
{
i_ -= outputTex.m_width;
i_ = outputTex.m_height - i_ - 1;
k_ = 2;
s += tmpTex.m_faces[k_].m_buff[(outputTex.m_width - j - 1) + i_*outputTex.m_width] * kernel[n + radius];
}
else
{
s += tmpTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
}
else if(k == 4)
{
if (i_ < 0)
{
i_ += outputTex.m_height;
k_ = 3;
s += tmpTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
else if (i_ >= outputTex.m_width)
{
i_ -= outputTex.m_width;
k_ = 2;
s += tmpTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
else
{
s += tmpTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
}
else if(k == 0)
{
if (i_ < 0)
{
i_ += outputTex.m_height;
i_ = outputTex.m_width - 1 - i_;
k_ = 3;
s += tmpTex.m_faces[k_].m_buff[i_ + j * outputTex.m_width] * kernel[n + radius];
}
else if (i_ >= outputTex.m_width)
{
i_ -= outputTex.m_width;
k_ = 2;
s += tmpTex.m_faces[k_].m_buff[i_ + (outputTex.m_height - j - 1)*outputTex.m_width] * kernel[n + radius];
}
else
{
s += tmpTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
}
else if(k == 1)
{
if (i_ < 0)
{
i_ += outputTex.m_height;
k_ = 3;
s += tmpTex.m_faces[k_].m_buff[i_ + (outputTex.m_height - j - 1) * outputTex.m_width] * kernel[n + radius];
}
else if (i_ >= outputTex.m_width)
{
i_ -= outputTex.m_width;
i_ = outputTex.m_width - 1 - i_;
k_ = 2;
s += tmpTex.m_faces[k_].m_buff[i_ + j * outputTex.m_width] * kernel[n + radius];
}
else
{
s += tmpTex.m_faces[k_].m_buff[j + i_*outputTex.m_width] * kernel[n + radius];
}
}
}
tmpTex2.m_faces[k].m_buff[j + i*outputTex.m_width] = s;
}
}
resTex.m_faces[k] = tmpTex2.m_faces[k];
}
outputTex = resTex;
outputTex.m_cubemap = true;
}
