//#################### PRIVATE METHODS ####################
void RGBA32ImageTexture::reload_image() const
{
typedef itk::VectorLinearInterpolateImageFunction<Image> Interpolator;
typedef itk::VectorResampleImageFilter<Image,Image> Resampler;
ImagePointer input = input_image<Resampler,Interpolator>(50);
const RGBA32 *const pixels = input->GetBufferPointer();
itk::Size<2> size = input->GetLargestPossibleRegion().GetSize();
int pixelCount = size[0] * size[1];
std::vector<unsigned char> data(pixelCount * 4);
for(int i=0; i<pixelCount; ++i)
{
data[i*4] = pixels[i][0];
data[i*4+1] = pixels[i][1];
data[i*4+2] = pixels[i][2];
data[i*4+3] = pixels[i][3];
}
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, size[0], size[1], 0, GL_RGBA, GL_UNSIGNED_BYTE, &data[0]);
}
//#################### PRIVATE METHODS ####################
void Greyscale8ImageTexture::reload_image() const
{
typedef itk::LinearInterpolateImageFunction<Image> Interpolator;
typedef itk::ResampleImageFilter<Image,Image> Resampler;
ImagePointer input = input_image<Resampler,Interpolator>(50);
itk::Size<2> size = input->GetLargestPossibleRegion().GetSize();
glTexImage2D(GL_TEXTURE_2D, 0, 1, size[0], size[1], 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, input->GetBufferPointer());
}
