chromium/third_party/angle/third_party/glmark2/src/src/model.cpp

/*
 * Copyright © 2008 Ben Smith
 * Copyright © 2010-2011 Linaro Limited
 *
 * This file is part of the glmark2 OpenGL (ES) 2.0 benchmark.
 *
 * glmark2 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 3 of the License, or (at your option) any later
 * version.
 *
 * glmark2 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
 * glmark2.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Authors:
 *  Ben Smith (original glmark benchmark)
 *  Alexandros Frantzis (glmark2)
 */
#include "mesh.h"
#include "model.h"
#include "vec.h"
#include "log.h"
#include "options.h"
#include "util.h"
#include "float.h"
#include "math.h"
#include <fstream>
#include <sstream>
#include <memory>

string;
vector;
vec2;
vec3;
uvec3;

#define read_or_fail(file, dst, size) …

/**
 * Computes the bounding box for a Model::Object.
 *
 * @param object the Model object
 */
void
Model::compute_bounding_box(const Object& object)
{ … }

/**
 * Appends the vertices of a Model::Object to a Mesh.
 *
 * @param object the object to append
 * @param mesh the mesh to append to
 * @param p_pos the attribute position to use for the 'position' attribute
 * @param n_pos the attribute position to use for the 'normal' attribute
 * @param t_pos the attribute position to use for the 'texcoord' attribute
 */
void
Model::append_object_to_mesh(const Object &object, Mesh &mesh,
                             int p_pos, int n_pos, int t_pos,
                             int nt_pos, int nb_pos)
{ … }

/**
 * Converts a model to a mesh using the default attributes bindings.
 *
 * The default attributes and their order is: Position, Normal, Texcoord
 *
 * @param mesh the mesh to populate
 */
void
Model::convert_to_mesh(Mesh &mesh)
{ … }

/**
 * Converts a model to a mesh using custom attribute bindings.
 *
 * The attribute bindings are pairs of <AttribType, dimensionality>.
 *
 * @param mesh the mesh to populate
 * @param attribs the attribute bindings to use
 */
void
Model::convert_to_mesh(Mesh &mesh,
                       const std::vector<std::pair<AttribType, int> > &attribs)
{ … }

void
Model::calculate_texcoords()
{ … }

/**
 * Calculates the normal vectors of the model vertices.
 */
void
Model::calculate_normals()
{ … }

/**
 * Load a model from a 3DS file.
 *
 * @param filename the name of the file
 *
 * @return whether loading succeeded
 */
bool
Model::load_3ds(const std::string &filename)
{ … }


const unsigned int Model::Face::OBJ_FACE_V = …;
const unsigned int Model::Face::OBJ_FACE_T = …;
const unsigned int Model::Face::OBJ_FACE_N = …;

/**
 * Parse 2-element vertex attribute from an OBJ file.
 *
 * @param source the source line to parse
 * @param v the vec2 to populate
 */
void
Model::obj_get_attrib(const string& source, vec2& v)
{ … }

/**
 * Parse 3-element vertex attribute from an OBJ file.
 *
 * @param source the source line to parse
 * @param v the vec3 to populate
 */
void
Model::obj_get_attrib(const string& source, vec3& v)
{ … }


void
Model::obj_face_get_index(const string& tuple, unsigned int& which,
    unsigned int& v, unsigned int& t, unsigned int& n)
{ … }

/**
 * Parse a face description from an OBJ file.
 * Faces always specify position, but optionally can also contain separate
 * indices for texcoords and normals.
 *
 * @param source the source line to parse
 * @param v the uvec3 to populate
 */
void
Model::obj_get_face(const string& source, Face& f)
{ … }

/**
 * Load a model from an OBJ file.
 *
 * @param filename the name of the file
 *
 * @return whether loading succeeded
 */
bool
Model::load_obj(const std::string &filename)
{ … }

namespace ModelPrivate
{
ModelMap modelMap;
}

/**
 * Locate all available models.
 *
 * This method scans the built-in data paths and build a database of usable
 * models available to scenes.  Map is available on a read-only basis to scenes
 * that might find it useful for listing models, etc.
 *
 * @return a map containing information about the located models
 */
const ModelMap&
Model::find_models()
{ … }

/**
 * Load a model by name.
 *
 * You must initialize the available model collection using
 * Model::find_models() before using this method.
 *
 * @param modelName the model name
 *
 * @return whether the operation succeeded
 */
bool
Model::load(const string& modelName)
{ … }