template <bool align> void DeinterleaveUv(const uint8_t * uv, size_t uvStride, size_t width, size_t height,
uint8_t * u, size_t uStride, uint8_t * v, size_t vStride)
{
assert(width >= A);
if(align)
assert(Aligned(uv) && Aligned(uvStride) && Aligned(u) && Aligned(uStride) && Aligned(v) && Aligned(vStride));
size_t alignedWidth = AlignLo(width, A);
for(size_t row = 0; row < height; ++row)
{
Loader<align> _uv(uv);
Storer<align> _u(u), _v(v);
DeinterleavedUv<align, true>(_uv, _u, _v);
for(size_t col = A; col < alignedWidth; col += A)
DeinterleavedUv<align, false>(_uv, _u, _v);
Flush(_u, _v);
if(width != alignedWidth)
{
Loader<false> _uv(uv + 2*(width - A));
Storer<false> _u(u + width - A), _v(v + width - A);
DeinterleavedUv<false, true>(_uv, _u, _v);
Flush(_u, _v);
}
uv += uvStride;
u += uStride;
v += vStride;
}
}
size_t assimp_load_meshes(const aiScene *scene, triangle_meshes_array& meshes)
{
for (size_t i = 0; i < scene->mNumMeshes; ++i)
{
vertices_array verts;
face_indices_array faces;
normals_array normals;
tangents_array tangents;
uvs_array uvs;
size_t num_verts = scene->mMeshes[i]->mNumVertices;
size_t num_faces = scene->mMeshes[i]->mNumFaces;
bool has_normals = scene->mMeshes[i]->HasNormals();
bool has_tangents = scene->mMeshes[i]->HasTangentsAndBitangents();
bool has_uvs = scene->mMeshes[i]->HasTextureCoords(0);
// Vertex Data
for (size_t v = 0; v < scene->mMeshes[i]->mNumVertices; ++v)
{
point3f vert(scene->mMeshes[i]->mVertices[v].x, scene->mMeshes[i]->mVertices[v].y, scene->mMeshes[i]->mVertices[v].z);
verts.push_back(vert);
if (has_normals)
{
vector3f normal(scene->mMeshes[i]->mNormals[v].x, scene->mMeshes[i]->mNormals[v].y, scene->mMeshes[i]->mNormals[v].z);
normals.push_back(normal);
}
if (has_tangents)
{
vector3f tangent(scene->mMeshes[i]->mTangents[v].x, scene->mMeshes[i]->mTangents[v].y, scene->mMeshes[i]->mTangents[v].z);
tangents.push_back(tangent);
}
if (has_uvs)
{
uv _uv(scene->mMeshes[i]->mTextureCoords[0][v].x, scene->mMeshes[i]->mTextureCoords[0][v].y);
uvs.push_back(_uv);
}
}
// Triangle Face Data
for (size_t f = 0; f < scene->mMeshes[i]->mNumFaces; ++f)
{
tri_indices face(scene->mMeshes[i]->mFaces[f].mIndices[0], scene->mMeshes[i]->mFaces[f].mIndices[1], scene->mMeshes[i]->mFaces[f].mIndices[2]);
faces.push_back(face);
}
triangle_mesh_ptr mesh = triangle_mesh_ptr(new c_triangle_mesh(verts, normals, tangents, uvs, faces));
meshes.push_back(mesh);
}
return scene->mNumMeshes;
}