/*
* Portions of this file are copyright Rebirth contributors and licensed as
* described in COPYING.txt.
* Portions of this file are copyright Parallax Software and licensed
* according to the Parallax license below.
* See COPYING.txt for license details.
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
*/
/*
*
* Header for polyobj.c, the polygon object code
*
*/
#pragma once
#include "vecmat.h"
#include "3d.h"
struct bitmap_index;
#ifdef __cplusplus
#include <cstddef>
#include <memory>
#include <physfs.h>
#include "pack.h"
#ifdef dsx
namespace dsx {
struct robot_info;
struct glow_values_t;
#if defined(DXX_BUILD_DESCENT_I)
constexpr std::integral_constant<unsigned, 85> MAX_POLYGON_MODELS{};
#elif defined(DXX_BUILD_DESCENT_II)
constexpr std::integral_constant<unsigned, 200> MAX_POLYGON_MODELS{};
#endif
// array of names of currently-loaded models
extern std::array<char[13], MAX_POLYGON_MODELS> Pof_names;
//for each model, a model number for dying & dead variants, or -1 if none
extern std::array<int, MAX_POLYGON_MODELS> Dying_modelnums, Dead_modelnums;
}
#endif
namespace dcx {
constexpr std::integral_constant<unsigned, 10> MAX_SUBMODELS{};
//used to describe a polygon model
struct polymodel : prohibit_void_ptr<polymodel>
{
unsigned n_models;
unsigned model_data_size;
std::unique_ptr<uint8_t[]> model_data;
std::array<int, MAX_SUBMODELS> submodel_ptrs;
std::array<vms_vector, MAX_SUBMODELS> submodel_offsets;
std::array<vms_vector, MAX_SUBMODELS> submodel_norms; // norm for sep plane
std::array<vms_vector, MAX_SUBMODELS> submodel_pnts; // point on sep plane
std::array<fix, MAX_SUBMODELS> submodel_rads; // radius for each submodel
std::array<ubyte, MAX_SUBMODELS> submodel_parents; // what is parent for each submodel
std::array<vms_vector, MAX_SUBMODELS> submodel_mins;
std::array<vms_vector, MAX_SUBMODELS> submodel_maxs;
vms_vector mins,maxs; // min,max for whole model
fix rad;
ushort first_texture;
ubyte n_textures;
ubyte simpler_model; // alternate model with less detail (0 if none, model_num+1 else)
//vms_vector min,max;
};
class submodel_angles
{
using array_type = const std::array<vms_angvec, MAX_SUBMODELS>;
array_type *p;
public:
submodel_angles(std::nullptr_t) : p(nullptr) {}
submodel_angles(array_type &a) : p(&a) {}
explicit operator bool() const { return p != nullptr; }
typename array_type::const_reference operator[](std::size_t i) const
{
array_type &a = *p;
return a[i];
}
};
// how many polygon objects there are
extern unsigned N_polygon_models;
void init_polygon_models();
/* Only defined if DXX_WORDS_NEED_ALIGNMENT, but always declared, so
* that the header preprocesses to the same text regardless of the
* setting.
*/
void align_polygon_model_data(polymodel *pm);
}
#ifdef dsx
namespace dsx {
/* Individual levels can customize the polygon models through robot overrides,
* so this must be scoped to the level, not to the mission.
*/
struct d_level_shared_polygon_model_state
{
std::array<polymodel, MAX_POLYGON_MODELS> Polygon_models;
};
// array of pointers to polygon objects
extern d_level_shared_polygon_model_state LevelSharedPolygonModelState;
void free_polygon_models();
int load_polygon_model(const char *filename,int n_textures,int first_texture,robot_info *r);
}
#endif
namespace dcx {
class alternate_textures
{
const bitmap_index *p = nullptr;
public:
alternate_textures() = default;
alternate_textures(std::nullptr_t) : p(nullptr) {}
template <std::size_t N>
alternate_textures(const std::array<bitmap_index, N> &a) : p(a.data())
{
}
operator const bitmap_index *() const { return p; }
};
}
#ifdef dsx
namespace dsx {
// draw a polygon model
void draw_polygon_model(grs_canvas &, const vms_vector &pos, const vms_matrix &orient, submodel_angles anim_angles, unsigned model_num, unsigned flags, g3s_lrgb light, const glow_values_t *glow_values, alternate_textures);
}
#endif
// draws the given model in the current canvas. The distance is set to
// more-or-less fill the canvas. Note that this routine actually renders
// into an off-screen canvas that it creates, then copies to the current
// canvas.
void draw_model_picture(grs_canvas &, uint_fast32_t mn, const vms_angvec &orient_angles);
#if defined(DXX_BUILD_DESCENT_I) || defined(DXX_BUILD_DESCENT_II)
#if defined(DXX_BUILD_DESCENT_I)
#define MAX_POLYOBJ_TEXTURES 50
#elif defined(DXX_BUILD_DESCENT_II)
// free up a model, getting rid of all its memory
void free_model(polymodel &po);
#define MAX_POLYOBJ_TEXTURES 100
constexpr std::integral_constant<unsigned, 166> N_D2_POLYGON_MODELS{};
#endif
#endif
namespace dcx {
/*
* reads a polymodel structure from a PHYSFS_File
*/
extern void polymodel_read(polymodel *pm, PHYSFS_File *fp);
}
#if 0
void polymodel_write(PHYSFS_File *fp, const polymodel &pm);
#endif
/*
* routine which allocates, reads, and inits a polymodel's model_data
*/
#ifdef dsx
namespace dsx {
void polygon_model_data_read(polymodel *pm, PHYSFS_File *fp);
}
#endif
#endif