79 lines
4.0 KiB
C++
79 lines
4.0 KiB
C++
#include "Models.hpp"
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#include <fstream>
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#include <map>
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using namespace render;
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std::unique_ptr<Model> (*Model::createFunc)(const Data&) = nullptr;
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std::unique_ptr<LodModel> (*LodModel::createFunc)(const LodData&) = nullptr;
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const std::vector<glm::vec3> Shape::SKY_CUBE = {
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{-1.0f, 1.0f, -1.0f}, {-1.0f, -1.0f, -1.0f}, { 1.0f, -1.0f, -1.0f}, { 1.0f, -1.0f, -1.0f}, { 1.0f, 1.0f, -1.0f}, {-1.0f, 1.0f, -1.0f},
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{-1.0f, -1.0f, 1.0f}, {-1.0f, -1.0f, -1.0f}, {-1.0f, 1.0f, -1.0f}, {-1.0f, 1.0f, -1.0f}, {-1.0f, 1.0f, 1.0f}, {-1.0f, -1.0f, 1.0f},
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{ 1.0f, -1.0f, -1.0f}, { 1.0f, -1.0f, 1.0f}, { 1.0f, 1.0f, 1.0f}, { 1.0f, 1.0f, 1.0f}, { 1.0f, 1.0f, -1.0f}, { 1.0f, -1.0f, -1.0f},
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{-1.0f, -1.0f, 1.0f}, {-1.0f, 1.0f, 1.0f}, { 1.0f, 1.0f, 1.0f}, { 1.0f, 1.0f, 1.0f}, { 1.0f, -1.0f, 1.0f}, {-1.0f, -1.0f, 1.0f},
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{-1.0f, 1.0f, -1.0f}, { 1.0f, 1.0f, -1.0f}, { 1.0f, 1.0f, 1.0f}, { 1.0f, 1.0f, 1.0f}, {-1.0f, 1.0f, 1.0f}, {-1.0f, 1.0f, -1.0f},
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{-1.0f, -1.0f, -1.0f}, {-1.0f, -1.0f, 1.0f}, { 1.0f, -1.0f, -1.0f}, { 1.0f, -1.0f, -1.0f}, {-1.0f, -1.0f, 1.0f}, { 1.0f, -1.0f, 1.0f}
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};
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const std::pair<std::vector<glm::vec3>, std::vector<glm::vec4>> Indicator::CUBE = {{
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{0, 0, 0}, {0, 0, 1}, {0, 0, 1}, {0, 1, 1}, {0, 1, 1}, {0, 1, 0}, {0, 1, 0}, {0, 0, 0}, {1, 0, 0}, {1, 0, 1}, {1, 0, 1}, {1, 1, 1},
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{1, 1, 1}, {1, 1, 0}, {1, 1, 0}, {1, 0, 0}, {0, 0, 0}, {1, 0, 0}, {0, 0, 1}, {1, 0, 1}, {0, 1, 1}, {1, 1, 1}, {0, 1, 0}, {1, 1, 0}
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}, {
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{1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1},
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{1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}
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}};
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void indexVBO(const std::vector<PackedVertexData> &in_vertices, std::vector<glm::u16> &out_indices, std::vector<PackedVertexData> &out_vertices);
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Model::Data::Data(const std::vector<PackedVertexData> &vs, const std::vector<glm::u16> &indices): indices(indices), vertices(vs) { }
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Model::Data::Data(std::ifstream& in) {
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{
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size_t i_size;
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in.read(reinterpret_cast<char *>(&i_size), sizeof(i_size));
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indices.resize(i_size);
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in.read(reinterpret_cast<char *>(indices.data()), sizeof(glm::u16) * i_size);
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}
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size_t v_size;
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in.read(reinterpret_cast<char *>(&v_size), sizeof(v_size));
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vertices.resize(v_size, PackedVertexData(0, 0, 0, 0, 0, 0, 0, 0));
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in.read(reinterpret_cast<char *>(vertices.data()), sizeof(PackedVertexData) * v_size);
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}
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void Model::Data::serialize(std::ofstream& out) {
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{
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size_t i_size = indices.size();
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out.write(reinterpret_cast<char *>(&i_size), sizeof(i_size));
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out.write(reinterpret_cast<char *>(indices.data()), sizeof(glm::u16) * i_size);
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}
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size_t v_size = vertices.size();
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out.write(reinterpret_cast<char *>(&v_size), sizeof(v_size));
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out.write(reinterpret_cast<char *>(vertices.data()), sizeof(PackedVertexData) * v_size);
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}
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void Model::Data::index(const std::vector<PackedVertexData>& vs) {
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indexVBO(vs, indices, vertices);
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}
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void indexVBO(const std::vector<PackedVertexData> &in_vertices, std::vector<glm::u16> &out_indices,
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std::vector<PackedVertexData> &out_vertices)
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{
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std::map<PackedVertexData, glm::u16> VertexToOutIndex;
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auto getSimilarVertexIndex_fast = [&] (const PackedVertexData &packed, glm::u16 &out) {
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if (auto it = VertexToOutIndex.find(packed); it == VertexToOutIndex.end()) {
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return false;
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}else{
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out = it->second;
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return true;
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}
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};
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out_indices.reserve(in_vertices.size());
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for (const auto& vertex: in_vertices) {
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if (glm::u16 index; getSimilarVertexIndex_fast(vertex, index)) {
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out_indices.push_back(index);
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} else {
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out_vertices.push_back(vertex);
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out_indices.push_back(out_vertices.size() - 1);
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VertexToOutIndex[vertex] = out_indices.back();
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}
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}
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} |