Riyyi
4 months ago
11 changed files with 62 additions and 575 deletions
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/*
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* Copyright (C) 2022 Riyyi |
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* |
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* SPDX-License-Identifier: MIT |
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*/ |
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#if 0 |
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#include <algorithm> // std::copy |
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#include <utility> // std::move |
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#include "nlohmann/json.hpp" |
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#include "ruc/meta/assert.h" |
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#include "inferno/io/file.h" |
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#include "inferno/io/gltffile.h" |
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#include "inferno/io/log.h" |
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#include "inferno/render/gltf.h" |
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#include "inferno/util/integer.h" |
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namespace Inferno { |
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Gltf::Gltf(const std::string& path) |
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: m_path(std::move(path)) |
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{ |
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auto gltf = GltfFile::read(path); |
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VERIFY(gltf.first, "Gltf model invalid JSON content '{}'", path); |
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json json = json::parse(gltf.first.get()); |
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// Add binary data from .glb files
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if (gltf.second) { |
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m_model.data.emplace(0, std::move(gltf.second)); |
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} |
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// Properties
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// Asset
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// ---------------------------------
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VERIFY(Json::hasProperty(json, "asset"), "GlTF model missing required property 'asset'"); |
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auto asset = json["asset"]; |
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VERIFY(asset.is_object(), "Gltf model invalid property type 'asset'"); |
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parseAsset(&m_model.asset, asset); |
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// Scene
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// ---------------------------------
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if (Json::hasProperty(json, "scenes")) { |
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auto scenes = json["scenes"]; |
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VERIFY(scenes.is_array(), "Gltf model invalid property type 'scenes'"); |
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for (auto& [key, object] : scenes.items()) { |
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glTF::Scene scene; |
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parseScene(&scene, key, object); |
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m_model.scenes.emplace_back(std::move(scene)); |
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} |
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} |
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// Node
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// ---------------------------------
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if (Json::hasProperty(json, "nodes")) { |
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auto nodes = json["nodes"]; |
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VERIFY(nodes.is_array(), "Gltf model invalid property type 'nodes'"); |
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for (auto& [key, object] : nodes.items()) { |
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glTF::Node node; |
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parseNode(&node, key, object); |
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m_model.nodes.emplace_back(std::move(node)); |
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} |
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} |
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// Mesh
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// ---------------------------------
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if (Json::hasProperty(json, "meshes")) { |
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auto meshes = json["meshes"]; |
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VERIFY(meshes.is_array(), "Gltf model invalid property type 'meshes'"); |
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for (auto& [key, object] : meshes.items()) { |
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glTF::Mesh mesh; |
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parseMesh(&mesh, key, object); |
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m_model.meshes.emplace_back(std::move(mesh)); |
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} |
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} |
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// Accessor
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// ---------------------------------
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if (Json::hasProperty(json, "accessors")) { |
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auto accessors = json["accessors"]; |
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VERIFY(accessors.is_array(), "Gltf model invalid property type 'accessors'"); |
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for (auto& [key, object] : accessors.items()) { |
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glTF::Accessor accessor; |
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parseAccessor(&accessor, key, object); |
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m_model.accessors.emplace_back(std::move(accessor)); |
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} |
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} |
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// Bufferview
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// ---------------------------------
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if (Json::hasProperty(json, "bufferViews")) { |
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auto bufferViews = json["bufferViews"]; |
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VERIFY(bufferViews.is_array(), "Gltf model invalid property type 'bufferViews'"); |
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for (auto& [key, object] : bufferViews.items()) { |
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glTF::BufferView bufferView; |
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parseBufferView(&bufferView, key, object); |
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m_model.bufferViews.emplace_back(std::move(bufferView)); |
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} |
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} |
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// Buffer
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// ---------------------------------
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if (Json::hasProperty(json, "buffers")) { |
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auto buffers = json["buffers"]; |
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VERIFY(buffers.is_array(), "Gltf model invalid property type 'buffers'"); |
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for (auto& [key, object] : buffers.items()) { |
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glTF::Buffer buffer; |
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parseBuffer(&buffer, key, object, &m_model.data); |
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m_model.buffers.emplace_back(std::move(buffer)); |
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} |
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} |
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} |
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Gltf::~Gltf() |
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{ |
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} |
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void Gltf::parseAsset(glTF::Asset* asset, const json& object) |
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{ |
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auto copyright = Json::parseStringProperty(object, "copyright", false); |
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auto generator = Json::parseStringProperty(object, "generator", false); |
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auto version = Json::parseStringProperty(object, "version", true); |
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VERIFY(version, "GlTF model missing required property 'version'"); |
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VERIFY(version.value().compare("2.0") == 0, "GlTF version unsupported '{}'", version.value()); |
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auto minVersion = Json::parseStringProperty(object, "minVersion", false); |
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if (copyright) asset->copyright = copyright.value(); |
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if (generator) asset->generator = generator.value(); |
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if (version) asset->version = version.value(); |
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if (minVersion) asset->minVersion = minVersion.value(); |
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} |
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void Gltf::parseScene(glTF::Scene* scene, const std::string& key, const json& object) |
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{ |
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auto nodes = Json::parseFloatArrayProperty(object, "nodes", false); |
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VERIFY(!nodes || nodes.value().size() > 0, "Gltf scene '{}' empty 'nodes' property", key); |
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auto name = Json::parseStringProperty(object, "name", false); |
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scene->name = name ? name.value() : key; |
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} |
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void Gltf::parseNode(glTF::Node* node, const std::string& key, const json& object) |
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{ |
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auto camera = Json::parseUnsignedProperty(object, "camera", false); |
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auto children = Json::parseUnsignedArrayProperty(object, "children", false); |
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VERIFY(!children || children.value().size() > 0, "Gltf node '{}' empty property 'children'", key); |
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auto skin = Json::parseUnsignedProperty(object, "skin", false); |
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auto matrix = Json::parseFloatArrayProperty(object, "matrix", false); |
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VERIFY(!matrix || matrix.value().size() == 16, "Gltf node '{}' property 'matrix' invalid size", key); |
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auto mesh = Json::parseUnsignedProperty(object, "mesh", false); |
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auto rotation = Json::parseFloatArrayProperty(object, "rotation", false); |
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VERIFY(!rotation || rotation.value().size() == 4, "Gltf node '{}' property 'rotation' invalid size", key); |
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auto scale = Json::parseFloatArrayProperty(object, "scale", false); |
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VERIFY(!scale || scale.value().size() == 3, "Gltf node '{}' property 'scale' invalid size", key); |
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auto translation = Json::parseFloatArrayProperty(object, "translation", false); |
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VERIFY(!translation || translation.value().size() == 3, "Gltf node '{}' property 'translation' invalid size", key); |
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auto weights = Json::parseFloatArrayProperty(object, "weights", false); |
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VERIFY(!weights || weights.value().size() > 0, "Gltf node '{}' empty property 'weights'", key); |
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auto name = Json::parseStringProperty(object, "name", false); |
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if (camera) node->camera = camera.value(); |
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if (children) node->children = children.value(); |
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if (skin) node->skin = skin.value(); |
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if (matrix) std::copy(matrix.value().begin(), matrix.value().end(), node->matrix.begin()); |
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if (mesh) node->mesh = mesh.value(); |
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if (rotation) std::copy(rotation.value().begin(), rotation.value().end(), node->rotation.begin()); |
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if (scale) std::copy(scale.value().begin(), scale.value().end(), node->scale.begin()); |
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if (translation) std::copy(translation.value().begin(), translation.value().end(), node->translation.begin()); |
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if (weights) node->weights = weights.value(); |
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node->name = name ? name.value() : key; |
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} |
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void Gltf::parsePrimitive(glTF::Primitive* primitive, const std::string& key, const json& object) |
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{ |
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auto attributes = Json::parseUnsignedObjectProperty(object, "attributes", true); |
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VERIFY(attributes && attributes.value().size() > 0, "Gltf primitive '{}' empty property 'attributes'", key); |
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auto indices = Json::parseUnsignedProperty(object, "indices", false); |
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auto material = Json::parseUnsignedProperty(object, "material", false); |
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auto mode = Json::parseUnsignedProperty(object, "mode", false); |
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if (Json::hasProperty(object, "targets")) { |
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auto targets = object["targets"]; |
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VERIFY(targets.is_array(), "Gltf primitive '{}' property 'targets' invalid type", key); |
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for (auto& targetObject : targets) { |
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std::map<std::string, uint32_t> target; |
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for (auto& [key, propertyValue] : targetObject.items()) { |
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auto value = Json::getPropertyValue<uint32_t>(propertyValue, json::value_t::number_unsigned); |
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if (value) target.emplace(std::move(key), value.value()); |
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} |
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VERIFY(target.size() > 0, "Gltf primitive '{}' empty 'target' object", key); |
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primitive->targets.emplace_back(std::move(target)); |
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} |
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} |
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if (attributes) primitive->attributes = attributes.value(); |
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if (indices) primitive->indices = indices.value(); |
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if (material) primitive->material = material.value(); |
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if (mode) primitive->mode = static_cast<unsigned char>(mode.value()); |
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} |
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void Gltf::parseMesh(glTF::Mesh* mesh, const std::string& key, const json& object) |
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{ |
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VERIFY(Json::hasProperty(object, "primitives"), "Gltf mesh '{}' missing required property 'primitives'", key); |
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auto primitives = object["primitives"]; |
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VERIFY(primitives.is_array(), "Gltf mesh '{}' property 'primitives' invalid type", key); |
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for (auto& primitiveObject : primitives) { |
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glTF::Primitive primitive; |
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parsePrimitive(&primitive, key, primitiveObject); |
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mesh->primitives.emplace_back(std::move(primitive)); |
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} |
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auto weights = Json::parseFloatArrayProperty(object, "weights", false); |
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VERIFY(!weights || weights.value().size() > 0, "Gltf mesh '{}' empty property 'weights'", key); |
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auto name = Json::parseStringProperty(object, "name", false); |
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if (weights) mesh->weights = weights.value(); |
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mesh->name = name ? name.value() : key; |
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} |
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void Gltf::parseAccessor(glTF::Accessor* accessor, const std::string& key, const json& object) |
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{ |
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auto bufferView = Json::parseUnsignedProperty(object, "bufferView", false); |
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auto byteOffset = Json::parseUnsignedProperty(object, "byteOffset", false); |
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auto componentType = Json::parseUnsignedProperty(object, "componentType", true); |
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VERIFY(componentType, "Gltf accessor '{}' missing required property 'componentType'", key); |
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auto normalized = Json::parseBoolProperty(object, "normalized", false); |
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auto count = Json::parseUnsignedProperty(object, "count", true); |
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VERIFY(count, "Gltf accessor '{}' missing required property 'count'", key); |
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auto type = Json::parseStringProperty(object, "type", true); |
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VERIFY(type, "Gltf accessor '{}' missing required property 'type'", key); |
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auto max = Json::parseFloatArrayProperty(object, "max", false); |
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VERIFY(!max || max.value().size() > 0, "Gltf accessor '{}' empty property 'max'", key); |
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auto min = Json::parseFloatArrayProperty(object, "min", false); |
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VERIFY(!min || min.value().size() > 0, "Gltf accessor '{}' empty property 'min'", key); |
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auto name = Json::parseStringProperty(object, "name", false); |
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if (bufferView) accessor->bufferView = bufferView.value(); |
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if (byteOffset) accessor->byteOffset = byteOffset.value(); |
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if (normalized) accessor->normalized = normalized.value(); |
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if (count) accessor->count = count.value(); |
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if (type) accessor->type = type.value(); |
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if (max) accessor->max = max.value(); |
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if (min) accessor->min = min.value(); |
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accessor->name = name ? name.value() : key; |
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} |
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void Gltf::parseBufferView(glTF::BufferView* bufferView, const std::string& key, const json& object) |
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{ |
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auto buffer = Json::parseUnsignedProperty(object, "buffer", false); |
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VERIFY(buffer, "Gltf bufferView '{}' missing required property 'buffer'", key); |
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auto byteOffset = Json::parseUnsignedProperty(object, "byteOffset", false); |
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auto byteLength = Json::parseUnsignedProperty(object, "byteLength", true); |
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VERIFY(byteLength, "Gltf bufferView '{}' missing required property 'byteLength'", key); |
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auto byteStride = Json::parseUnsignedProperty(object, "byteStride", false); |
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auto target = Json::parseUnsignedProperty(object, "target", false); |
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auto name = Json::parseStringProperty(object, "name", false); |
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if (buffer) bufferView->buffer = buffer.value(); |
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if (byteOffset) bufferView->byteOffset = byteOffset.value(); |
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if (byteLength) bufferView->byteLength = byteLength.value(); |
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if (byteStride) bufferView->byteStride = byteStride.value(); |
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if (target) bufferView->target = target.value(); |
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bufferView->name = name ? name.value() : key; |
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} |
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void Gltf::parseBuffer(glTF::Buffer* buffer, const std::string& key, const json& object, std::map<uint32_t, std::shared_ptr<char[]>>* data) |
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{ |
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auto uri = Json::parseStringProperty(object, "uri", false); |
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// Load external binary data
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if (uri) { |
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VERIFY(uri.value().find("data:", 0) == std::string::npos, "GltfFile embedded binary data is unsupported"); |
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data->emplace(std::stou(key), File::raw("assets/gltf/" + uri.value())); |
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} |
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auto byteLength = Json::parseUnsignedProperty(object, "byteLength", true); |
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VERIFY(byteLength, "Gltf buffer '{}' missing required property 'byteLength'", key); |
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auto name = Json::parseStringProperty(object, "name", false); |
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if (uri) buffer->uri = uri.value(); |
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if (byteLength) buffer->byteLength = byteLength.value(); |
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buffer->name = name ? name.value() : key; |
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} |
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} // namespace Inferno
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#endif |
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@ -1,176 +0,0 @@
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/*
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* Copyright (C) 2022 Riyyi |
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* |
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* SPDX-License-Identifier: MIT |
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*/ |
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#pragma once |
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#if 0 |
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#include <cstdint> // uint32_t |
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#include <memory> // std::shared_ptr |
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#include <string> // std::string |
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#include <unordered_map> // std::unordered_map |
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#include <vector> // std::vector |
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#include "ruc/singleton.h" |
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#include "inferno/util/json.h" |
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#define GLTF_TYPE_SCALAR 1 |
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#define GLTF_TYPE_VEC2 2 |
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#define GLTF_TYPE_VEC3 3 |
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#define GLTF_TYPE_VEC4 4 |
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#define GLTF_TYPE_MAT2 8 |
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#define GLTF_TYPE_MAT3 12 |
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#define GLTF_TYPE_MAT4 16 |
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#define GLTF_COMPONENT_TYPE_BYTE 5120 |
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#define GLTF_COMPONENT_TYPE_UNSIGNED_BYTE 5121 |
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#define GLTF_COMPONENT_TYPE_SHORT 5122 |
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#define GLTF_COMPONENT_TYPE_UNSIGNED_SHORT 5123 |
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#define GLTF_COMPONENT_TYPE_INT 5124 |
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#define GLTF_COMPONENT_TYPE_UNSIGNED_INT 5125 |
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#define GLTF_COMPONENT_TYPE_FLOAT 5126 |
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#define GLTF_TARGET_ARRAY_BUFFER 34962 |
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#define GLTF_TARGET_ELEMENT_ARRAY_BUFFER 34963 |
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namespace Inferno { |
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namespace glTF { |
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// Type specifications
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// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#objects
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// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#asset
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struct Asset { |
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std::string copyright; |
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std::string generator; |
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std::string version; // Required
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std::string minVersion; |
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}; |
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// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes
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struct Scene { |
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std::vector<uint32_t> nodes; |
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std::string name; |
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}; |
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// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy
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struct Node { |
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uint32_t camera; |
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std::vector<uint32_t> children; |
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uint32_t skin; |
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std::array<float, 16> matrix { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 }; // Identity matrix
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uint32_t mesh; |
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std::array<float, 4> rotation { 0, 0, 0, 1 }; |
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std::array<float, 3> scale { 1, 1, 1 }; |
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std::array<float, 3> translation { 0, 0, 0 }; |
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std::vector<float> weights; |
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std::string name; |
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}; |
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struct Primitive { |
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std::map<std::string, uint32_t> attributes; // Required
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uint32_t indices; |
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uint32_t material; |
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unsigned char mode { 4 }; |
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std::vector<std::map<std::string, uint32_t>> targets; |
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}; |
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// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#meshes
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struct Mesh { |
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std::vector<Primitive> primitives; // Required
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std::vector<float> weights; |
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std::string name; |
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}; |
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// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#accessors
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struct Accessor { |
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uint32_t bufferView; |
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uint32_t byteOffset { 0 }; |
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uint32_t componentType; // Required
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bool normalized { false }; |
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uint32_t count; // Required
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std::string type; // Required
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std::vector<float> max; |
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std::vector<float> min; |
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std::string name; |
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}; |
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// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#buffers-and-buffer-views
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struct BufferView { |
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uint32_t buffer; // Required
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uint32_t byteOffset { 0 }; |
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uint32_t byteLength; // Required
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uint32_t byteStride; |
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uint32_t target; |
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std::string name; |
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}; |
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struct Buffer { |
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std::string uri; |
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uint32_t byteLength; // Required
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std::string name; |
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}; |
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struct Model { |
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Asset asset; |
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std::vector<Scene> scenes; |
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std::vector<Node> nodes; |
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std::vector<Mesh> meshes; |
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std::vector<Accessor> accessors; |
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std::vector<BufferView> bufferViews; |
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std::vector<Buffer> buffers; |
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std::map<uint32_t, std::shared_ptr<char[]>> data; |
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}; |
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} // namespace glTF
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// -----------------------------------------
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class Gltf { |
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public: |
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Gltf(const std::string& path); |
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virtual ~Gltf(); |
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inline const glTF::Model& model() const { return m_model; } |
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private: |
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static void parseAsset(glTF::Asset* asset, const json& object); |
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static void parseScene(glTF::Scene* scene, const std::string& key, const json& object); |
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static void parseNode(glTF::Node* node, const std::string& key, const json& object); |
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static void parsePrimitive(glTF::Primitive* primitive, const std::string& key, const json& object); |
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static void parseMesh(glTF::Mesh* mesh, const std::string& key, const json& object); |
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static void parseAccessor(glTF::Accessor* accessor, const std::string& key, const json& object); |
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static void parseBufferView(glTF::BufferView* bufferView, const std::string& key, const json& object); |
||||
static void parseBuffer(glTF::Buffer* buffer, const std::string& key, const json& object, std::map<uint32_t, std::shared_ptr<char[]>>* data); |
||||
|
||||
std::string m_path; |
||||
glTF::Model m_model; |
||||
}; |
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|
||||
// -----------------------------------------
|
||||
|
||||
class GltfManager final : ruc::Singleton<GltfManager> { |
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public: |
||||
GltfManager(s) {} |
||||
virtual ~GltfManager() {} |
||||
|
||||
void add(const std::string& path, std::shared_ptr<Gltf> gltf); |
||||
std::shared_ptr<Gltf> load(const std::string& path); |
||||
std::shared_ptr<Gltf> get(const std::string& path); |
||||
bool exists(const std::string& path); |
||||
|
||||
void remove(const std::string& path); |
||||
void remove(std::shared_ptr<Gltf> gltf); |
||||
|
||||
private: |
||||
std::unordered_map<std::string, std::shared_ptr<Gltf>> m_gltfList; |
||||
}; |
||||
|
||||
} // namespace Inferno
|
||||
#endif |
||||
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Reference in new issue