125 lines
3.9 KiB
C
125 lines
3.9 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 rendering-based functions
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*
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*/
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#ifndef _RENDER_H
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#define _RENDER_H
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#include "3d.h"
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#if defined(DXX_BUILD_DESCENT_I) || defined(DXX_BUILD_DESCENT_II)
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#include "object.h"
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#endif
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#ifdef __cplusplus
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#define MAX_RENDER_SEGS 500
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#define OBJS_PER_SEG 5
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#define N_EXTRA_OBJ_LISTS 50
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extern int Render_depth; //how many segments deep to render
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extern int Max_perspective_depth; // Deepest segment at which perspective extern interpolation will be used.
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extern int Max_linear_depth; // Deepest segment at which linear extern interpolation will be used.
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extern int Max_linear_depth_objects;
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extern int Simple_model_threshhold_scale; // switch to simpler model when the object has depth greater than this value times its radius.
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extern int Max_debris_objects; // How many debris objects to create
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#ifdef OGL
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#define DETRIANGULATION 0
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#else
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#define DETRIANGULATION 1
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#endif
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extern int Clear_window; // 1 = Clear whole background window, 2 = clear view portals into rest of world, 0 = no clear
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void render_frame(fix eye_offset, int window_num); //draws the world into the current canvas
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// cycle the flashing light for when mine destroyed
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void flash_frame();
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int find_seg_side_face(short x,short y,int *seg,int *side,int *face,int *poly);
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// these functions change different rendering parameters
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// all return the new value of the parameter
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// how may levels deep to render
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int inc_render_depth(void);
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int dec_render_depth(void);
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int reset_render_depth(void);
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// how many levels deep to render in perspective
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int inc_perspective_depth(void);
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int dec_perspective_depth(void);
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int reset_perspective_depth(void);
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// misc toggles
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int toggle_outline_mode(void);
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int toggle_show_only_curside(void);
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// When any render function needs to know what's looking at it, it
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// should access Render_viewer_object members.
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extern fix Render_zoom; // the player's zoom factor
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#if defined(DXX_BUILD_DESCENT_I)
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static const fix Seismic_tremor_magnitude = 0;
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static const ubyte RenderingType = 0;
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#elif defined(DXX_BUILD_DESCENT_II)
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extern fix Seismic_tremor_magnitude;
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extern ubyte RenderingType;
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#endif
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extern int N_render_segs;
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extern short Render_list[MAX_RENDER_SEGS];
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extern fix flash_scale;
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extern vms_vector Viewer_eye;
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#ifdef EDITOR
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extern int Render_only_bottom;
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#endif
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//
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// Routines for conditionally rotating & projecting points
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//
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// This must be called at the start of the frame if rotate_list() will be used
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void render_start_frame(void);
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// Given a list of point numbers, rotate any that haven't been rotated
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// this frame
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g3s_codes rotate_list(int nv, int *pointnumlist);
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// Given a list of point numbers, project any that haven't been projected
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void project_list(int nv, int *pointnumlist);
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extern void render_mine(int start_seg_num, fix eye_offset, int window_num);
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#if defined(DXX_BUILD_DESCENT_II)
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extern void update_rendered_data(int window_num, object *viewer, int rear_view_flag);
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#endif
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#endif
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#endif /* _RENDER_H */
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