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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2016 Kévin Dietrich.
* All rights reserved.
*/
#pragma once
/** \file
* \ingroup balembic
*/
#include <Alembic/Abc/All.h>
#include <Alembic/AbcGeom/All.h>
#include <map>
struct CustomData;
struct MLoop;
struct MLoopUV;
struct MPoly;
struct MVert;
struct Mesh;
using Alembic::Abc::ICompoundProperty;
using Alembic::Abc::OCompoundProperty;
namespace blender::io::alembic {
struct UVSample {
std::vector<Imath::V2f> uvs;
std::vector<uint32_t> indices;
};
struct CDStreamConfig {
MLoop *mloop;
int totloop;
MPoly *mpoly;
int totpoly;
MVert *mvert;
int totvert;
MLoopUV *mloopuv;
CustomData *loopdata;
bool pack_uvs;
/* TODO(kevin): might need a better way to handle adding and/or updating
* custom data such that it updates the custom data holder and its pointers properly. */
Mesh *mesh;
void *(*add_customdata_cb)(Mesh *mesh, const char *name, int data_type);
float weight;
float time;
int timesample_index;
bool use_vertex_interpolation;
Alembic::AbcGeom::index_t index;
Alembic::AbcGeom::index_t ceil_index;
const char **modifier_error_message;
/* Alembic needs Blender to keep references to C++ objects (the destructors finalize the writing
* to ABC). The following fields are all used to keep these references. */
/* Mapping from UV map name to its ABC property, for the 2nd and subsequent UV maps; the primary
* UV map is kept alive by the Alembic mesh sample itself. */
std::map<std::string, Alembic::AbcGeom::OV2fGeomParam> abc_uv_maps;
/* ORCO coordinates, aka Generated Coordinates. */
Alembic::AbcGeom::OV3fGeomParam abc_orco;
/* Mapping from vertex color layer name to its Alembic color data. */
std::map<std::string, Alembic::AbcGeom::OC4fGeomParam> abc_vertex_colors;
CDStreamConfig()
: mloop(NULL),
totloop(0),
mpoly(NULL),
totpoly(0),
totvert(0),
pack_uvs(false),
mesh(NULL),
add_customdata_cb(NULL),
weight(0.0f),
time(0.0f),
index(0),
ceil_index(0),
modifier_error_message(NULL)
{
}
};
/* Get the UVs for the main UV property on a OSchema.
* Returns the name of the UV layer.
*
* For now the active layer is used, maybe needs a better way to choose this. */
const char *get_uv_sample(UVSample &sample, const CDStreamConfig &config, CustomData *data);
void write_generated_coordinates(const OCompoundProperty &prop, CDStreamConfig &config);
void read_generated_coordinates(const ICompoundProperty &prop,
const CDStreamConfig &config,
const Alembic::Abc::ISampleSelector &iss);
void write_custom_data(const OCompoundProperty &prop,
CDStreamConfig &config,
CustomData *data,
int data_type);
void read_custom_data(const std::string &iobject_full_name,
const ICompoundProperty &prop,
const CDStreamConfig &config,
const Alembic::Abc::ISampleSelector &iss);
typedef enum {
ABC_UV_SCOPE_NONE,
ABC_UV_SCOPE_LOOP,
ABC_UV_SCOPE_VERTEX,
} AbcUvScope;
AbcUvScope get_uv_scope(const Alembic::AbcGeom::GeometryScope scope,
const CDStreamConfig &config,
const Alembic::AbcGeom::UInt32ArraySamplePtr &indices);
} // namespace blender::io::alembic
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