void print_number(mve::ByteImage::Ptr image, int x, int y, int digit, math::Vec3uc color) {
assert(0 <= x && x < image->width() - 3);
assert(0 <= y && y < image->height() - 5);
assert(0 <= digit && digit <= 9);
for(int i = 0; i < 3; ++i) {
for(int j = 0; j < 5; ++j) {
if(font[30 * j + digit * 3 + i]) {
for(int c = 0; c < image->channels(); ++c) {
image->at(x+i, y+j, c) = color[c];
}
}
}
}
}
cacc::ByteImagecacc::HOST>::Ptr
convert(mve::ByteImage::Ptr image) {
if (image->channels() != 3 && image->channels() != 4) {
throw std::runtime_error("Only support for 3/4 channels");
}
int widht = image->width();
int height = image->height();
cacc::ByteImage<cacc::HOST>::Ptr ret;
ret = cacc::ByteImage<cacc::HOST>::create(width, height);
cacc::ByteImage<cacc::HOST>::Data & data = ret->data();
for (int y = 0; y < height; ++y)
for (int x = 0; x < width; ++x) {
uint pixel = 0x00000000;
for (int c = 0; c < image->channels(); ++c) {
pixel |= static_cast<uint>(image->at(x, y, c)) << 8 * c;
}
data.data_ptr[y * data.pitch + x] = pixel;
}
}