Fixed a small bug that was breaking the far ptr's

master
MitchellHansen 7 years ago
parent 2519532172
commit b9c1bef7bc

@ -22,7 +22,7 @@ struct OctState {
class Octree {
public:
static const int buffer_size = 100000;
static const int buffer_size = 300000;
Octree();
~Octree() {};

@ -150,20 +150,20 @@ inline std::string read_file(std::string file_name){
inline void PrettyPrintUINT64(uint64_t i, std::stringstream* ss) {
*ss << "[" << std::bitset<15>(i) << "]";
*ss << "[" << std::bitset<1>(i >> 15) << "]";
*ss << "[" << std::bitset<8>(i >> 16) << "]";
*ss << "[" << std::bitset<8>(i >> 24) << "]";
*ss << "[" << std::bitset<32>(i >> 32) << "]\n";
//*ss << "[" << std::bitset<15>(i) << "]";
//*ss << "[" << std::bitset<1>(i >> 15) << "]";
//*ss << "[" << std::bitset<8>(i >> 16) << "]";
//*ss << "[" << std::bitset<8>(i >> 24) << "]";
//*ss << "[" << std::bitset<32>(i >> 32) << "]\n";
}
inline void PrettyPrintUINT64(uint64_t i) {
std::cout << "[" << std::bitset<15>(i) << "]";
std::cout << "[" << std::bitset<1>(i >> 15) << "]";
std::cout << "[" << std::bitset<8>(i >> 16) << "]";
std::cout << "[" << std::bitset<8>(i >> 24) << "]";
std::cout << "[" << std::bitset<32>(i >> 32) << "]" << std::endl;
//std::cout << "[" << std::bitset<15>(i) << "]";
//std::cout << "[" << std::bitset<1>(i >> 15) << "]";
//std::cout << "[" << std::bitset<8>(i >> 16) << "]";
//std::cout << "[" << std::bitset<8>(i >> 24) << "]";
//std::cout << "[" << std::bitset<32>(i >> 32) << "]" << std::endl;
}
inline void DumpLog(std::stringstream* ss, std::string file_name) {

@ -126,16 +126,17 @@ OctState Octree::GetVoxel(sf::Vector3i position) {
// Negate it by one as it counts itself
int count = count_bits((uint8_t)(head >> 16) & count_mask_8[mask_index]) - 1;
// access the far point at which the head points too. Determine it's value, and add
// a count of the valid bits to the index
if (far_bit_mask & descriptor_buffer[current_index]) {
int far_pointer_index = current_index + (head & child_pointer_mask);
current_index = descriptor_buffer[far_pointer_index] + count;
}
// access the element at which head points to and then add the specified number of indices
// to get to the correct child descriptor
bool jumping = false;
if (far_bit_mask & descriptor_buffer[current_index])
jumping = true;
current_index = current_index + (head & child_pointer_mask) + count;
if (jumping == true)
current_index = descriptor_buffer[current_index];
else {
current_index = current_index + (head & child_pointer_mask) + count;
}
head = descriptor_buffer[current_index];
@ -192,6 +193,7 @@ std::tuple<uint64_t, uint64_t> Octree::GenerationRecursion(char* data, sf::Vecto
// absolute position of it within the descriptor buffer
std::tuple<uint64_t, uint64_t> descriptor_and_position(0, 0);
// If we hit the 1th voxel scale then we need to query the 3D grid
// and get the voxel at that position. I assume in the future when I
// want to do chunking / loading of raw data I can edit the voxel access
@ -243,6 +245,9 @@ std::tuple<uint64_t, uint64_t> Octree::GenerationRecursion(char* data, sf::Vecto
descriptor_position_array.push_back(child);
}
}
if (voxel_scale == 64)
std::cout << "WHoA";
// We are working bottom up so we need to subtract from the stack position
// the amount of elements we want to use. In the worst case this will be
@ -254,7 +259,7 @@ std::tuple<uint64_t, uint64_t> Octree::GenerationRecursion(char* data, sf::Vecto
if (page_header_counter - worst_case_insertion_size <= 0) {
// Jump to the page headers position and reset the counter
descriptor_buffer_position -= 0x8000 - page_header_counter;
descriptor_buffer_position -= page_header_counter;
page_header_counter = 0x8000;
// Fill the space with blank
@ -264,11 +269,13 @@ std::tuple<uint64_t, uint64_t> Octree::GenerationRecursion(char* data, sf::Vecto
}
for (int i = 0; i < descriptor_position_array.size(); i++) {
std::get<1>(descriptor_position_array.at(i)) = descriptor_buffer_position - i;
}
//for (int i = 0; i < descriptor_position_array.size(); i++) {
// std::get<1>(descriptor_position_array.at(i)) = descriptor_buffer_position - i;
//}
unsigned int far_pointer_count = 0;
// If looking "up" to zero, the far ptr is entered first before the cp block. Get it's position
uint64_t far_pointer_block_position = descriptor_buffer_position;
// Count the far pointers we need to allocate
@ -302,7 +309,8 @@ std::tuple<uint64_t, uint64_t> Octree::GenerationRecursion(char* data, sf::Vecto
if (relative_distance > 0x8000) {
descriptor |= far_bit_mask;
descriptor |= far_pointer_block_position;
// The distance from this cp to the far ptr
descriptor |= far_pointer_block_position - descriptor_buffer_position;
far_pointer_block_position--;

Loading…
Cancel
Save