223 lines
7 KiB
C++
223 lines
7 KiB
C++
/*
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* Portions of this file are copyright Rebirth contributors and licensed as
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* described in COPYING.txt.
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* Portions of this file are copyright Parallax Software and licensed
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* according to the Parallax license below.
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* See COPYING.txt for license details.
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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/*
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*
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* Header for polyobj.c, the polygon object code
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*
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*/
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#pragma once
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#include "fwd-piggy.h"
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#include "vecmat.h"
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#include "3d.h"
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#include <cstddef>
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#include <cstdint>
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#include <memory>
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#include <physfs.h>
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#include "d_array.h"
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#include "inferno.h"
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#include "pack.h"
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namespace dcx {
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enum class polygon_model_index : uint8_t
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{
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None = UINT8_MAX
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};
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enum class polygon_simpler_model_index : uint8_t
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{
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None = 0,
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};
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}
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#ifdef dsx
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namespace dsx {
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struct robot_info;
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struct glow_values_t;
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#if defined(DXX_BUILD_DESCENT_I)
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constexpr std::integral_constant<unsigned, 85> MAX_POLYGON_MODELS{};
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#elif defined(DXX_BUILD_DESCENT_II)
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constexpr std::integral_constant<unsigned, 200> MAX_POLYGON_MODELS{};
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#endif
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//for each model, a model number for dying & dead variants, or -1 if none
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extern enumerated_array<polygon_model_index, MAX_POLYGON_MODELS, polygon_model_index> Dying_modelnums, Dead_modelnums;
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}
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#endif
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namespace dcx {
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constexpr std::integral_constant<unsigned, 10> MAX_SUBMODELS{};
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//used to describe a polygon model
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struct polymodel : prohibit_void_ptr<polymodel>
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{
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unsigned n_models;
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unsigned model_data_size;
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std::unique_ptr<uint8_t[]> model_data;
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std::array<int, MAX_SUBMODELS> submodel_ptrs;
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std::array<vms_vector, MAX_SUBMODELS> submodel_offsets;
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std::array<vms_vector, MAX_SUBMODELS> submodel_norms; // norm for sep plane
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std::array<vms_vector, MAX_SUBMODELS> submodel_pnts; // point on sep plane
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std::array<fix, MAX_SUBMODELS> submodel_rads; // radius for each submodel
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std::array<ubyte, MAX_SUBMODELS> submodel_parents; // what is parent for each submodel
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std::array<vms_vector, MAX_SUBMODELS> submodel_mins;
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std::array<vms_vector, MAX_SUBMODELS> submodel_maxs;
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vms_vector mins,maxs; // min,max for whole model
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fix rad;
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ushort first_texture;
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ubyte n_textures;
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polygon_simpler_model_index simpler_model; // alternate model with less detail (0 if none, model_num+1 else)
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//vms_vector min,max;
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};
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class submodel_angles
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{
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using array_type = const std::array<vms_angvec, MAX_SUBMODELS>;
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array_type *p;
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public:
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submodel_angles(std::nullptr_t) : p(nullptr) {}
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submodel_angles(array_type &a) : p(&a) {}
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explicit operator bool() const { return p != nullptr; }
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typename array_type::const_reference operator[](std::size_t i) const
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{
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array_type &a = *p;
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return a[i];
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}
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};
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struct d_level_shared_polygon_model_state
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{
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// how many polygon objects there are
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unsigned N_polygon_models;
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};
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void init_polygon_models(d_level_shared_polygon_model_state &);
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/* Only defined if DXX_WORDS_NEED_ALIGNMENT, but always declared, so
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* that the header preprocesses to the same text regardless of the
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* setting.
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*/
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void align_polygon_model_data(polymodel *pm);
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}
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#ifdef dsx
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namespace dsx {
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/* Individual levels can customize the polygon models through robot overrides,
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* so this must be scoped to the level, not to the mission.
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*/
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struct d_level_shared_polygon_model_state : ::dcx::d_level_shared_polygon_model_state
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{
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enumerated_array<polymodel, MAX_POLYGON_MODELS, polygon_model_index> Polygon_models;
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// array of names of currently-loaded models
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enumerated_array<char[FILENAME_LEN], MAX_POLYGON_MODELS, polygon_model_index> Pof_names;
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#if defined(DXX_BUILD_DESCENT_II)
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//the model number of the marker object
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polygon_model_index Marker_model_num = polygon_model_index::None;
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bool Exit_models_loaded;
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#endif
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};
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// array of pointers to polygon objects
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extern d_level_shared_polygon_model_state LevelSharedPolygonModelState;
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void free_polygon_models(d_level_shared_polygon_model_state &LevelSharedPolygonModelState);
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polygon_model_index load_polygon_model(const char *filename, int n_textures, int first_texture, robot_info *r);
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}
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#endif
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namespace dcx {
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class alternate_textures
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{
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const bitmap_index *p = nullptr;
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public:
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alternate_textures() = default;
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alternate_textures(std::nullptr_t) : p(nullptr) {}
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template <std::size_t N>
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alternate_textures(const std::array<bitmap_index, N> &a) : p(a.data())
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{
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}
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operator const bitmap_index *() const { return p; }
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};
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}
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#ifdef dsx
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namespace dsx {
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// draw a polygon model
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void draw_polygon_model(const enumerated_array<polymodel, MAX_POLYGON_MODELS, polygon_model_index> &, grs_canvas &, const vms_vector &pos, const vms_matrix &orient, submodel_angles anim_angles, const polygon_model_index model_num, unsigned flags, g3s_lrgb light, const glow_values_t *glow_values, alternate_textures);
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void draw_polygon_model(grs_canvas &, const vms_vector &pos, const vms_matrix &orient, submodel_angles anim_angles, const polymodel &model_num, unsigned flags, g3s_lrgb light, const glow_values_t *glow_values, alternate_textures);
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}
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#endif
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// draws the given model in the current canvas. The distance is set to
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// more-or-less fill the canvas. Note that this routine actually renders
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// into an off-screen canvas that it creates, then copies to the current
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// canvas.
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void draw_model_picture(grs_canvas &, const polymodel &mn, const vms_angvec &orient_angles);
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#if defined(DXX_BUILD_DESCENT_I) || defined(DXX_BUILD_DESCENT_II)
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#if defined(DXX_BUILD_DESCENT_I)
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#define MAX_POLYOBJ_TEXTURES 50
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#elif defined(DXX_BUILD_DESCENT_II)
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#define MAX_POLYOBJ_TEXTURES 100
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constexpr std::integral_constant<unsigned, 166> N_D2_POLYGON_MODELS{};
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#endif
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#endif
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namespace dcx {
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#if defined(DXX_BUILD_DESCENT_II)
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/* This function exists in both games and has the same implementation in
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* both, but is static in Descent 1. Declare it in the header only for
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* Descent 2.
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*/
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// free up a model, getting rid of all its memory
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void free_model(polymodel &po);
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#endif
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/*
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* reads a polymodel structure from a PHYSFS_File
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*/
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void polymodel_read(polymodel &pm, PHYSFS_File *fp);
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}
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#if 0
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void polymodel_write(PHYSFS_File *fp, const polymodel &pm);
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#endif
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/*
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* routine which allocates, reads, and inits a polymodel's model_data
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*/
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#ifdef dsx
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namespace dsx {
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void polygon_model_data_read(polymodel *pm, PHYSFS_File *fp);
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polygon_model_index build_polygon_model_index_from_untrusted(unsigned i);
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#if DXX_USE_OGL
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void ogl_cache_polymodel_textures(polygon_model_index model_num);
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#endif
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}
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#endif
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