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chore: update minor code smells in GltfLoader

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This commit is contained in:
Jan Laupetin
2025-09-07 19:29:32 +01:00
parent 3fb887b5dd
commit 1b6c58d843
1 changed files with 49 additions and 59 deletions
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108
src/ObjLoading/XModel/Gltf/GltfLoader.cpp
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@@ -23,23 +23,24 @@ namespace
{
struct AccessorsForVertex
{
unsigned positionAccessor;
std::optional<unsigned> normalAccessor;
std::optional<unsigned> colorAccessor;
std::optional<unsigned> uvAccessor;
std::optional<unsigned> jointsAccessor;
std::optional<unsigned> weightsAccessor;
friend bool operator==(const AccessorsForVertex& lhs, const AccessorsForVertex& rhs)
{
return lhs.positionAccessor == rhs.positionAccessor && lhs.normalAccessor == rhs.normalAccessor && lhs.colorAccessor == rhs.colorAccessor
&& lhs.uvAccessor == rhs.uvAccessor && lhs.jointsAccessor == rhs.jointsAccessor && lhs.weightsAccessor == rhs.weightsAccessor;
return lhs.m_position_accessor == rhs.m_position_accessor && lhs.m_normal_accessor == rhs.m_normal_accessor
&& lhs.m_color_accessor == rhs.m_color_accessor && lhs.m_uv_accessor == rhs.m_uv_accessor && lhs.m_joints_accessor == rhs.m_joints_accessor
&& lhs.m_weights_accessor == rhs.m_weights_accessor;
}
friend bool operator!=(const AccessorsForVertex& lhs, const AccessorsForVertex& rhs)
{
return !(lhs == rhs);
}
unsigned m_position_accessor;
std::optional<unsigned> m_normal_accessor;
std::optional<unsigned> m_color_accessor;
std::optional<unsigned> m_uv_accessor;
std::optional<unsigned> m_joints_accessor;
std::optional<unsigned> m_weights_accessor;
};
void RhcToLhcCoordinates(float (&coords)[3])
@@ -81,19 +82,6 @@ namespace
indices[1] = two[1];
indices[2] = two[0];
}
void RhcToLhcMatrix(Eigen::Matrix4f& matrix)
{
const Eigen::Matrix4f convertMatrix({
{1.0, 0.0, 0.0, 0.0},
{0.0, 0.0, -1.0, 0.0},
{0.0, 1.0, 0.0, 0.0},
{0.0, 0.0, 0.0, 1.0}
});
const auto result = convertMatrix * matrix;
matrix = result;
}
} // namespace
template<> struct std::hash<AccessorsForVertex>
@@ -101,12 +89,12 @@ template<> struct std::hash<AccessorsForVertex>
std::size_t operator()(const AccessorsForVertex& v) const noexcept
{
std::size_t seed = 0x7E42C0E6;
seed ^= (seed << 6) + (seed >> 2) + 0x47B15429 + static_cast<std::size_t>(v.positionAccessor);
seed ^= (seed << 6) + (seed >> 2) + 0x66847B5C + std::hash<std::optional<unsigned>>()(v.normalAccessor);
seed ^= (seed << 6) + (seed >> 2) + 0x77399D60 + std::hash<std::optional<unsigned>>()(v.colorAccessor);
seed ^= (seed << 6) + (seed >> 2) + 0x477AF9AB + std::hash<std::optional<unsigned>>()(v.uvAccessor);
seed ^= (seed << 6) + (seed >> 2) + 0x4421B4D9 + std::hash<std::optional<unsigned>>()(v.jointsAccessor);
seed ^= (seed << 6) + (seed >> 2) + 0x13C2EBA1 + std::hash<std::optional<unsigned>>()(v.weightsAccessor);
seed ^= (seed << 6) + (seed >> 2) + 0x47B15429 + static_cast<std::size_t>(v.m_position_accessor);
seed ^= (seed << 6) + (seed >> 2) + 0x66847B5C + std::hash<std::optional<unsigned>>()(v.m_normal_accessor);
seed ^= (seed << 6) + (seed >> 2) + 0x77399D60 + std::hash<std::optional<unsigned>>()(v.m_color_accessor);
seed ^= (seed << 6) + (seed >> 2) + 0x477AF9AB + std::hash<std::optional<unsigned>>()(v.m_uv_accessor);
seed ^= (seed << 6) + (seed >> 2) + 0x4421B4D9 + std::hash<std::optional<unsigned>>()(v.m_joints_accessor);
seed ^= (seed << 6) + (seed >> 2) + 0x13C2EBA1 + std::hash<std::optional<unsigned>>()(v.m_weights_accessor);
return seed;
}
};
@@ -137,14 +125,14 @@ namespace
struct ObjectToLoad
{
unsigned meshIndex;
std::optional<unsigned> skinIndex;
ObjectToLoad(const unsigned meshIndex, const std::optional<unsigned> skinIndex)
: meshIndex(meshIndex),
skinIndex(skinIndex)
: m_mesh_index(meshIndex),
m_skin_index(skinIndex)
{
}
unsigned m_mesh_index;
std::optional<unsigned> m_skin_index;
};
class GltfLoaderImpl final : public Loader
@@ -197,7 +185,7 @@ namespace
return;
std::deque<unsigned> nodeQueue;
std::vector<unsigned> rootNodes = GetRootNodes(jRoot);
const std::vector<unsigned> rootNodes = GetRootNodes(jRoot);
for (const auto rootNode : rootNodes)
nodeQueue.emplace_back(rootNode);
@@ -258,9 +246,9 @@ namespace
unsigned CreateVertices(XModelCommon& common, const AccessorsForVertex& accessorsForVertex)
{
// clang-format off
auto* positionAccessor = GetAccessorForIndex(
const auto* positionAccessor = GetAccessorForIndex(
"POSITION",
accessorsForVertex.positionAccessor,
accessorsForVertex.m_position_accessor,
{JsonAccessorType::VEC3},
{JsonAccessorComponentType::FLOAT}
).value_or(nullptr);
@@ -271,41 +259,41 @@ namespace
OnesAccessor onesAccessor(vertexCount);
// clang-format off
auto* normalAccessor = GetAccessorForIndex(
const auto* normalAccessor = GetAccessorForIndex(
"NORMAL",
accessorsForVertex.normalAccessor,
accessorsForVertex.m_normal_accessor,
{JsonAccessorType::VEC3},
{JsonAccessorComponentType::FLOAT}
).value_or(&nullAccessor);
VerifyAccessorVertexCount("NORMAL", normalAccessor, vertexCount);
auto* uvAccessor = GetAccessorForIndex(
const auto* uvAccessor = GetAccessorForIndex(
"TEXCOORD_0",
accessorsForVertex.uvAccessor,
accessorsForVertex.m_uv_accessor,
{JsonAccessorType::VEC2},
{JsonAccessorComponentType::FLOAT, JsonAccessorComponentType::UNSIGNED_BYTE, JsonAccessorComponentType::UNSIGNED_SHORT}
).value_or(&nullAccessor);
VerifyAccessorVertexCount("TEXCOORD_0", uvAccessor, vertexCount);
auto* colorAccessor = GetAccessorForIndex(
const auto* colorAccessor = GetAccessorForIndex(
"COLOR_0",
accessorsForVertex.colorAccessor,
accessorsForVertex.m_color_accessor,
{JsonAccessorType::VEC3, JsonAccessorType::VEC4},
{JsonAccessorComponentType::FLOAT, JsonAccessorComponentType::UNSIGNED_BYTE, JsonAccessorComponentType::UNSIGNED_SHORT}
).value_or(&onesAccessor);
VerifyAccessorVertexCount("COLOR_0", colorAccessor, vertexCount);
auto* jointsAccessor = GetAccessorForIndex(
const auto* jointsAccessor = GetAccessorForIndex(
"JOINTS_0",
accessorsForVertex.jointsAccessor,
accessorsForVertex.m_joints_accessor,
{JsonAccessorType::VEC4},
{JsonAccessorComponentType::UNSIGNED_BYTE, JsonAccessorComponentType::UNSIGNED_SHORT}
).value_or(&nullAccessor);
VerifyAccessorVertexCount("JOINTS_0", jointsAccessor, vertexCount);
auto* weightsAccessor = GetAccessorForIndex(
const auto* weightsAccessor = GetAccessorForIndex(
"WEIGHTS_0",
accessorsForVertex.weightsAccessor,
accessorsForVertex.m_weights_accessor,
{JsonAccessorType::VEC4},
{JsonAccessorComponentType::FLOAT, JsonAccessorComponentType::UNSIGNED_BYTE, JsonAccessorComponentType::UNSIGNED_SHORT}
).value_or(&nullAccessor);
@@ -363,13 +351,13 @@ namespace
if (!primitives.attributes.POSITION)
throw GltfLoadException("Requires primitives attribute POSITION");
AccessorsForVertex accessorsForVertex{
.positionAccessor = *primitives.attributes.POSITION,
.normalAccessor = primitives.attributes.NORMAL,
.colorAccessor = primitives.attributes.COLOR_0,
.uvAccessor = primitives.attributes.TEXCOORD_0,
.jointsAccessor = primitives.attributes.JOINTS_0,
.weightsAccessor = primitives.attributes.WEIGHTS_0,
const AccessorsForVertex accessorsForVertex{
.m_position_accessor = *primitives.attributes.POSITION,
.m_normal_accessor = primitives.attributes.NORMAL,
.m_color_accessor = primitives.attributes.COLOR_0,
.m_uv_accessor = primitives.attributes.TEXCOORD_0,
.m_joints_accessor = primitives.attributes.JOINTS_0,
.m_weights_accessor = primitives.attributes.WEIGHTS_0,
};
const auto existingVertices = m_vertex_offset_for_accessors.find(accessorsForVertex);
@@ -630,26 +618,26 @@ namespace
for (const auto& loadObject : m_load_objects)
{
if (loadObject.skinIndex && jRoot.skins)
if (loadObject.m_skin_index && jRoot.skins)
{
if (alreadyLoadedSkinIndex)
{
if (*alreadyLoadedSkinIndex != *loadObject.skinIndex)
if (*alreadyLoadedSkinIndex != *loadObject.m_skin_index)
throw GltfLoadException("Only scenes with at most one skin are supported");
// Do not load already loaded skin
}
else
{
const auto& skin = jRoot.skins.value()[*loadObject.skinIndex];
const auto& skin = jRoot.skins.value()[*loadObject.m_skin_index];
if (!ConvertSkin(jRoot, skin, common))
return;
alreadyLoadedSkinIndex = *loadObject.skinIndex;
alreadyLoadedSkinIndex = *loadObject.m_skin_index;
}
}
const auto& mesh = jRoot.meshes.value()[loadObject.meshIndex];
const auto& mesh = jRoot.meshes.value()[loadObject.m_mesh_index];
common.m_objects.reserve(common.m_objects.size() + mesh.primitives.size());
for (const auto& primitives : mesh.primitives)
@@ -811,10 +799,12 @@ namespace
std::vector<std::unique_ptr<Accessor>> m_accessors;
std::vector<std::unique_ptr<BufferView>> m_buffer_views;
std::vector<std::unique_ptr<Buffer>> m_buffers;
bool m_bad_rotation_formulas;
};
} // namespace
std::unique_ptr<Loader> Loader::CreateLoader(const Input* input)
{
return std::make_unique<GltfLoaderImpl>(input);
return std::make_unique<GltfLoaderImpl>(input, useBadRotationFormulas);
}