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https://github.com/KartKrewDev/RingRacers.git
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1690 lines
40 KiB
C
1690 lines
40 KiB
C
// SONIC ROBO BLAST 2
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//-----------------------------------------------------------------------------
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// Copyright (C) 1993-1996 by id Software, Inc.
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// Copyright (C) 1998-2000 by DooM Legacy Team.
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// Copyright (C) 1999-2020 by Sonic Team Junior.
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//
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// This program is free software distributed under the
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// terms of the GNU General Public License, version 2.
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// See the 'LICENSE' file for more details.
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//-----------------------------------------------------------------------------
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/// \file r_main.c
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/// \brief Rendering main loop and setup functions,
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/// utility functions (BSP, geometry, trigonometry).
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/// See tables.c, too.
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#include "doomdef.h"
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#include "g_game.h"
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#include "g_input.h"
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#include "r_local.h"
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#include "r_splats.h" // faB(21jan): testing
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#include "r_sky.h"
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#include "hu_stuff.h"
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#include "st_stuff.h"
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#include "p_local.h"
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#include "keys.h"
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#include "i_video.h"
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#include "k_menu.h"
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#include "am_map.h"
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#include "d_main.h"
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#include "v_video.h"
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//#include "p_spec.h"
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#include "p_setup.h"
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#include "z_zone.h"
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#include "m_random.h" // quake camera shake
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#include "r_portal.h"
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#include "r_main.h"
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#include "i_system.h" // I_GetPreciseTime
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#include "doomstat.h" // MAXSPLITSCREENPLAYERS
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#include "r_fps.h" // Frame interpolation/uncapped
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#ifdef HWRENDER
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#include "hardware/hw_main.h"
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#endif
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//profile stuff ---------------------------------------------------------
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//#define TIMING
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#ifdef TIMING
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#include "p5prof.h"
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INT64 mycount;
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INT64 mytotal = 0;
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//unsigned long nombre = 100000;
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#endif
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//profile stuff ---------------------------------------------------------
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// Fineangles in the SCREENWIDTH wide window.
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#define FIELDOFVIEW 2048
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// increment every time a check is made
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size_t validcount = 1;
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INT32 centerx, centery;
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fixed_t centerxfrac, centeryfrac;
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fixed_t projection[MAXSPLITSCREENPLAYERS];
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fixed_t projectiony[MAXSPLITSCREENPLAYERS]; // aspect ratio
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fixed_t fovtan[MAXSPLITSCREENPLAYERS]; // field of view
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// just for profiling purposes
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size_t framecount;
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size_t loopcount;
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fixed_t viewx, viewy, viewz;
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angle_t viewangle, aimingangle, viewroll;
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UINT8 viewssnum;
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fixed_t viewcos, viewsin;
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sector_t *viewsector;
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player_t *viewplayer;
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mobj_t *r_viewmobj;
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int r_splitscreen;
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fixed_t rendertimefrac;
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fixed_t renderdeltatics;
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boolean renderisnewtic;
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//
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// precalculated math tables
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//
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angle_t clipangle[MAXSPLITSCREENPLAYERS];
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angle_t doubleclipangle[MAXSPLITSCREENPLAYERS];
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// The viewangletox[viewangle + FINEANGLES/4] lookup
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// maps the visible view angles to screen X coordinates,
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// flattening the arc to a flat projection plane.
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// There will be many angles mapped to the same X.
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INT32 viewangletox[MAXSPLITSCREENPLAYERS][FINEANGLES/2];
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// The xtoviewangleangle[] table maps a screen pixel
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// to the lowest viewangle that maps back to x ranges
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// from clipangle to -clipangle.
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angle_t xtoviewangle[MAXSPLITSCREENPLAYERS][MAXVIDWIDTH+1];
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lighttable_t *scalelight[LIGHTLEVELS][MAXLIGHTSCALE];
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lighttable_t *scalelightfixed[MAXLIGHTSCALE];
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lighttable_t *zlight[LIGHTLEVELS][MAXLIGHTZ];
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// Hack to support extra boom colormaps.
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extracolormap_t *extra_colormaps = NULL;
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// Render stats
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precise_t ps_prevframetime = 0;
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precise_t ps_rendercalltime = 0;
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precise_t ps_uitime = 0;
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precise_t ps_swaptime = 0;
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precise_t ps_bsptime = 0;
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precise_t ps_sw_spritecliptime = 0;
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precise_t ps_sw_portaltime = 0;
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precise_t ps_sw_planetime = 0;
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precise_t ps_sw_maskedtime = 0;
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int ps_numbspcalls = 0;
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int ps_numsprites = 0;
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int ps_numdrawnodes = 0;
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int ps_numpolyobjects = 0;
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static CV_PossibleValue_t drawdist_cons_t[] = {
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/*{256, "256"},*/ {512, "512"}, {768, "768"},
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{1024, "1024"}, {1536, "1536"}, {2048, "2048"},
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{3072, "3072"}, {4096, "4096"}, {6144, "6144"},
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{8192, "8192"}, {0, "Infinite"}, {0, NULL}};
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static CV_PossibleValue_t drawdist_precip_cons_t[] = {
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{256, "256"}, {512, "512"}, {768, "768"},
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{1024, "1024"}, {1536, "1536"}, {2048, "2048"},
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{0, "None"}, {0, NULL}};
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static CV_PossibleValue_t fov_cons_t[] = {{60*FRACUNIT, "MIN"}, {179*FRACUNIT, "MAX"}, {0, NULL}};
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static CV_PossibleValue_t translucenthud_cons_t[] = {{0, "MIN"}, {10, "MAX"}, {0, NULL}};
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static CV_PossibleValue_t maxportals_cons_t[] = {{0, "MIN"}, {12, "MAX"}, {0, NULL}}; // lmao rendering 32 portals, you're a card
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static CV_PossibleValue_t homremoval_cons_t[] = {{0, "No"}, {1, "Yes"}, {2, "Flash"}, {0, NULL}};
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static void Fov_OnChange(void);
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static void ChaseCam_OnChange(void);
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static void ChaseCam2_OnChange(void);
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static void ChaseCam3_OnChange(void);
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static void ChaseCam4_OnChange(void);
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consvar_t cv_tailspickup = CVAR_INIT ("tailspickup", "On", CV_NETVAR|CV_NOSHOWHELP, CV_OnOff, NULL);
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consvar_t cv_chasecam[MAXSPLITSCREENPLAYERS] = {
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CVAR_INIT ("chasecam", "On", CV_CALL, CV_OnOff, ChaseCam_OnChange),
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CVAR_INIT ("chasecam2", "On", CV_CALL, CV_OnOff, ChaseCam2_OnChange),
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CVAR_INIT ("chasecam3", "On", CV_CALL, CV_OnOff, ChaseCam3_OnChange),
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CVAR_INIT ("chasecam4", "On", CV_CALL, CV_OnOff, ChaseCam4_OnChange)
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};
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consvar_t cv_shadow = CVAR_INIT ("shadow", "On", CV_SAVE, CV_OnOff, NULL);
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consvar_t cv_skybox = CVAR_INIT ("skybox", "On", CV_SAVE, CV_OnOff, NULL);
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consvar_t cv_ffloorclip = CVAR_INIT ("ffloorclip", "On", CV_SAVE, CV_OnOff, NULL);
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consvar_t cv_allowmlook = CVAR_INIT ("allowmlook", "Yes", CV_NETVAR, CV_YesNo, NULL);
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consvar_t cv_showhud = CVAR_INIT ("showhud", "Yes", CV_CALL, CV_YesNo, R_SetViewSize);
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consvar_t cv_translucenthud = CVAR_INIT ("translucenthud", "10", CV_SAVE, translucenthud_cons_t, NULL);
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consvar_t cv_drawdist = CVAR_INIT ("drawdist", "8192", CV_SAVE, drawdist_cons_t, NULL);
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consvar_t cv_drawdist_precip = CVAR_INIT ("drawdist_precip", "1024", CV_SAVE, drawdist_precip_cons_t, NULL);
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consvar_t cv_fov[MAXSPLITSCREENPLAYERS] = {
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CVAR_INIT ("fov", "90", CV_FLOAT|CV_CALL, fov_cons_t, Fov_OnChange),
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CVAR_INIT ("fov2", "90", CV_FLOAT|CV_CALL, fov_cons_t, Fov_OnChange),
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CVAR_INIT ("fov3", "90", CV_FLOAT|CV_CALL, fov_cons_t, Fov_OnChange),
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CVAR_INIT ("fov4", "90", CV_FLOAT|CV_CALL, fov_cons_t, Fov_OnChange)
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};
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// Okay, whoever said homremoval causes a performance hit should be shot.
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consvar_t cv_homremoval = CVAR_INIT ("homremoval", "Yes", CV_SAVE, homremoval_cons_t, NULL);
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consvar_t cv_maxportals = CVAR_INIT ("maxportals", "2", CV_SAVE, maxportals_cons_t, NULL);
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consvar_t cv_renderstats = CVAR_INIT ("renderstats", "Off", 0, CV_OnOff, NULL);
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consvar_t cv_drawpickups = CVAR_INIT ("drawpickups", "Yes", CV_CHEAT, CV_YesNo, NULL);
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consvar_t cv_debugfinishline = CVAR_INIT ("debugfinishline", "Off", CV_CHEAT, CV_OnOff, NULL);
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void SplitScreen_OnChange(void)
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{
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UINT8 i;
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/*
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local splitscreen is updated before you're in a game,
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so this is the first value for renderer splitscreen
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*/
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r_splitscreen = splitscreen;
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// recompute screen size
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R_ExecuteSetViewSize();
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if (!demo.playback)
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{
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for (i = 1; i < MAXSPLITSCREENPLAYERS; i++)
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{
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if (i > splitscreen)
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CL_RemoveSplitscreenPlayer(displayplayers[i]);
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else
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CL_AddSplitscreenPlayer();
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}
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if (server && !netgame)
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multiplayer = splitscreen;
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}
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else
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{
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for (i = 1; i < MAXSPLITSCREENPLAYERS; i++)
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displayplayers[i] = consoleplayer;
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for (i = 0; i < MAXPLAYERS; i++)
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{
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if (playeringame[i] && i != consoleplayer)
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{
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UINT8 j;
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for (j = 1; j < MAXSPLITSCREENPLAYERS; j++)
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{
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if (displayplayers[j] == consoleplayer)
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{
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displayplayers[j] = i;
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break;
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}
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}
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if (j == MAXSPLITSCREENPLAYERS)
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break;
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}
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}
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}
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}
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static void Fov_OnChange(void)
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{
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R_SetViewSize();
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}
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static void ChaseCam_OnChange(void)
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{
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;
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}
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static void ChaseCam2_OnChange(void)
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{
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;
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}
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static void ChaseCam3_OnChange(void)
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{
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;
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}
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static void ChaseCam4_OnChange(void)
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{
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;
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}
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//
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// R_PointOnSide
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// Traverse BSP (sub) tree,
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// check point against partition plane.
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// Returns side 0 (front) or 1 (back).
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//
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// killough 5/2/98: reformatted
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//
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INT32 R_PointOnSide(fixed_t x, fixed_t y, node_t *node)
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{
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if (!node->dx)
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return x <= node->x ? node->dy > 0 : node->dy < 0;
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if (!node->dy)
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return y <= node->y ? node->dx < 0 : node->dx > 0;
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x -= node->x;
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y -= node->y;
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// Try to quickly decide by looking at sign bits.
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if ((node->dy ^ node->dx ^ x ^ y) < 0)
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return (node->dy ^ x) < 0; // (left is negative)
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return FixedMul(y, node->dx>>FRACBITS) >= FixedMul(node->dy>>FRACBITS, x);
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}
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// killough 5/2/98: reformatted
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INT32 R_PointOnSegSide(fixed_t x, fixed_t y, seg_t *line)
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{
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fixed_t lx = line->v1->x;
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fixed_t ly = line->v1->y;
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fixed_t ldx = line->v2->x - lx;
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fixed_t ldy = line->v2->y - ly;
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if (!ldx)
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return x <= lx ? ldy > 0 : ldy < 0;
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if (!ldy)
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return y <= ly ? ldx < 0 : ldx > 0;
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x -= lx;
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y -= ly;
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// Try to quickly decide by looking at sign bits.
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if ((ldy ^ ldx ^ x ^ y) < 0)
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return (ldy ^ x) < 0; // (left is negative)
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return FixedMul(y, ldx>>FRACBITS) >= FixedMul(ldy>>FRACBITS, x);
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}
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//
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// R_PointToAngle
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// To get a global angle from cartesian coordinates,
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// the coordinates are flipped until they are in
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// the first octant of the coordinate system, then
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// the y (<=x) is scaled and divided by x to get a
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// tangent (slope) value which is looked up in the
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// tantoangle[] table. The +1 size of tantoangle[]
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// is to handle the case when x==y without additional
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// checking.
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//
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// killough 5/2/98: reformatted, cleaned up
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angle_t R_PointToAngle(fixed_t x, fixed_t y)
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{
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return R_PointToAngle2(viewx, viewy, x, y);
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}
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// Similar to R_PointToAngle, but requires an additional player_t argument.
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// If this player is a local displayplayer, this will base off the calculations off of their camera instead, otherwise use viewx/viewy as usual.
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// Yes this is kinda ghetto.
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angle_t R_PointToAnglePlayer(player_t *player, fixed_t x, fixed_t y)
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{
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fixed_t refx = viewx, refy = viewy;
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camera_t *cam = NULL;
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UINT8 i;
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for (i = 0; i <= r_splitscreen; i++)
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{
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if (player == &players[displayplayers[i]])
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{
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cam = &camera[i];
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break;
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}
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}
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// use whatever cam we found's coordinates.
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if (cam != NULL)
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{
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refx = cam->x;
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refy = cam->y;
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}
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return R_PointToAngle2(refx, refy, x, y);
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}
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// This version uses 64-bit variables to avoid overflows with large values.
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// Currently used only by OpenGL rendering.
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angle_t R_PointToAngle64(INT64 x, INT64 y)
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{
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return (y -= viewy, (x -= viewx) || y) ?
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x >= 0 ?
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y >= 0 ?
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(x > y) ? tantoangle[SlopeDivEx(y,x)] : // octant 0
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ANGLE_90-tantoangle[SlopeDivEx(x,y)] : // octant 1
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x > (y = -y) ? 0-tantoangle[SlopeDivEx(y,x)] : // octant 8
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ANGLE_270+tantoangle[SlopeDivEx(x,y)] : // octant 7
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y >= 0 ? (x = -x) > y ? ANGLE_180-tantoangle[SlopeDivEx(y,x)] : // octant 3
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ANGLE_90 + tantoangle[SlopeDivEx(x,y)] : // octant 2
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(x = -x) > (y = -y) ? ANGLE_180+tantoangle[SlopeDivEx(y,x)] : // octant 4
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ANGLE_270-tantoangle[SlopeDivEx(x,y)] : // octant 5
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0;
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}
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angle_t R_PointToAngle2(fixed_t pviewx, fixed_t pviewy, fixed_t x, fixed_t y)
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{
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return (y -= pviewy, (x -= pviewx) || y) ?
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x >= 0 ?
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y >= 0 ?
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(x > y) ? tantoangle[SlopeDiv(y,x)] : // octant 0
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ANGLE_90-tantoangle[SlopeDiv(x,y)] : // octant 1
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x > (y = -y) ? 0-tantoangle[SlopeDiv(y,x)] : // octant 8
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ANGLE_270+tantoangle[SlopeDiv(x,y)] : // octant 7
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y >= 0 ? (x = -x) > y ? ANGLE_180-tantoangle[SlopeDiv(y,x)] : // octant 3
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ANGLE_90 + tantoangle[SlopeDiv(x,y)] : // octant 2
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(x = -x) > (y = -y) ? ANGLE_180+tantoangle[SlopeDiv(y,x)] : // octant 4
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ANGLE_270-tantoangle[SlopeDiv(x,y)] : // octant 5
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0;
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}
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fixed_t R_PointToDist2(fixed_t px2, fixed_t py2, fixed_t px1, fixed_t py1)
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{
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return FixedHypot(px1 - px2, py1 - py2);
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}
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// Little extra utility. Works in the same way as R_PointToAngle2
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fixed_t R_PointToDist(fixed_t x, fixed_t y)
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{
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return R_PointToDist2(viewx, viewy, x, y);
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}
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angle_t R_PointToAngleEx(INT32 x2, INT32 y2, INT32 x1, INT32 y1)
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{
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INT64 dx = x1-x2;
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INT64 dy = y1-y2;
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if (dx < INT32_MIN || dx > INT32_MAX || dy < INT32_MIN || dy > INT32_MAX)
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{
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x1 = (int)(dx / 2 + x2);
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y1 = (int)(dy / 2 + y2);
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}
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return (y1 -= y2, (x1 -= x2) || y1) ?
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x1 >= 0 ?
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y1 >= 0 ?
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(x1 > y1) ? tantoangle[SlopeDivEx(y1,x1)] : // octant 0
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ANGLE_90-tantoangle[SlopeDivEx(x1,y1)] : // octant 1
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x1 > (y1 = -y1) ? 0-tantoangle[SlopeDivEx(y1,x1)] : // octant 8
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ANGLE_270+tantoangle[SlopeDivEx(x1,y1)] : // octant 7
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y1 >= 0 ? (x1 = -x1) > y1 ? ANGLE_180-tantoangle[SlopeDivEx(y1,x1)] : // octant 3
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ANGLE_90 + tantoangle[SlopeDivEx(x1,y1)] : // octant 2
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(x1 = -x1) > (y1 = -y1) ? ANGLE_180+tantoangle[SlopeDivEx(y1,x1)] : // octant 4
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ANGLE_270-tantoangle[SlopeDivEx(x1,y1)] : // octant 5
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0;
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}
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//
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// R_ScaleFromGlobalAngle
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// Returns the texture mapping scale for the current line (horizontal span)
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// at the given angle.
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// rw_distance must be calculated first.
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//
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// killough 5/2/98: reformatted, cleaned up
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//
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// note: THIS IS USED ONLY FOR WALLS!
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fixed_t R_ScaleFromGlobalAngle(angle_t visangle)
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{
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angle_t anglea = ANGLE_90 + (visangle-viewangle);
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angle_t angleb = ANGLE_90 + (visangle-rw_normalangle);
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fixed_t den = FixedMul(rw_distance, FINESINE(anglea>>ANGLETOFINESHIFT));
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// proff 11/06/98: Changed for high-res
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fixed_t num = FixedMul(projectiony[viewssnum],
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FINESINE(angleb>>ANGLETOFINESHIFT));
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if (den > num>>16)
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{
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num = FixedDiv(num, den);
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if (num > 64*FRACUNIT)
|
|
return 64*FRACUNIT;
|
|
if (num < 256)
|
|
return 256;
|
|
return num;
|
|
}
|
|
return 64*FRACUNIT;
|
|
}
|
|
|
|
//
|
|
// R_DoCulling
|
|
// Checks viewz and top/bottom heights of an item against culling planes
|
|
// Returns true if the item is to be culled, i.e it shouldn't be drawn!
|
|
// if args[1] is set, the camera view is required to be in the same area for culling to occur
|
|
boolean R_DoCulling(line_t *cullheight, line_t *viewcullheight, fixed_t vz, fixed_t bottomh, fixed_t toph)
|
|
{
|
|
fixed_t cullplane;
|
|
|
|
if (!cullheight)
|
|
return false;
|
|
|
|
cullplane = cullheight->frontsector->floorheight;
|
|
if (cullheight->args[1]) // Group culling
|
|
{
|
|
if (!viewcullheight)
|
|
return false;
|
|
|
|
// Make sure this is part of the same group
|
|
if (viewcullheight->frontsector == cullheight->frontsector)
|
|
{
|
|
// OK, we can cull
|
|
if (vz > cullplane && toph < cullplane) // Cull if below plane
|
|
return true;
|
|
|
|
if (bottomh > cullplane && vz <= cullplane) // Cull if above plane
|
|
return true;
|
|
}
|
|
}
|
|
else // Quick culling
|
|
{
|
|
if (vz > cullplane && toph < cullplane) // Cull if below plane
|
|
return true;
|
|
|
|
if (bottomh > cullplane && vz <= cullplane) // Cull if above plane
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
//
|
|
// R_InitTextureMapping
|
|
//
|
|
static void R_InitTextureMapping(int s)
|
|
{
|
|
INT32 i;
|
|
INT32 x;
|
|
INT32 t;
|
|
fixed_t focallength;
|
|
|
|
// Use tangent table to generate viewangletox:
|
|
// viewangletox will give the next greatest x
|
|
// after the view angle.
|
|
//
|
|
// Calc focallength
|
|
// so FIELDOFVIEW angles covers SCREENWIDTH.
|
|
focallength = FixedDiv(projection[s],
|
|
FINETANGENT(FINEANGLES/4+FIELDOFVIEW/2));
|
|
|
|
focallengthf[s] = FIXED_TO_FLOAT(focallength);
|
|
|
|
for (i = 0; i < FINEANGLES/2; i++)
|
|
{
|
|
if (FINETANGENT(i) > fovtan[s]*2)
|
|
t = -1;
|
|
else if (FINETANGENT(i) < -fovtan[s]*2)
|
|
t = viewwidth+1;
|
|
else
|
|
{
|
|
t = FixedMul(FINETANGENT(i), focallength);
|
|
t = (centerxfrac - t+FRACUNIT-1)>>FRACBITS;
|
|
|
|
if (t < -1)
|
|
t = -1;
|
|
else if (t > viewwidth+1)
|
|
t = viewwidth+1;
|
|
}
|
|
viewangletox[s][i] = t;
|
|
}
|
|
|
|
// Scan viewangletox[] to generate xtoviewangle[]:
|
|
// xtoviewangle will give the smallest view angle
|
|
// that maps to x.
|
|
for (x = 0; x <= viewwidth;x++)
|
|
{
|
|
i = 0;
|
|
while (viewangletox[s][i] > x)
|
|
i++;
|
|
xtoviewangle[s][x] = (i<<ANGLETOFINESHIFT) - ANGLE_90;
|
|
}
|
|
|
|
// Take out the fencepost cases from viewangletox.
|
|
for (i = 0; i < FINEANGLES/2; i++)
|
|
{
|
|
if (viewangletox[s][i] == -1)
|
|
viewangletox[s][i] = 0;
|
|
else if (viewangletox[s][i] == viewwidth+1)
|
|
viewangletox[s][i] = viewwidth;
|
|
}
|
|
|
|
clipangle[s] = xtoviewangle[s][0];
|
|
doubleclipangle[s] = clipangle[s]*2;
|
|
}
|
|
|
|
|
|
|
|
//
|
|
// R_InitLightTables
|
|
// Only inits the zlight table,
|
|
// because the scalelight table changes with view size.
|
|
//
|
|
#define DISTMAP 2
|
|
|
|
static inline void R_InitLightTables(void)
|
|
{
|
|
INT32 i;
|
|
INT32 j;
|
|
INT32 level;
|
|
INT32 startmapl;
|
|
INT32 scale;
|
|
|
|
// Calculate the light levels to use
|
|
// for each level / distance combination.
|
|
for (i = 0; i < LIGHTLEVELS; i++)
|
|
{
|
|
startmapl = ((LIGHTLEVELS-1-i)*2)*NUMCOLORMAPS/LIGHTLEVELS;
|
|
for (j = 0; j < MAXLIGHTZ; j++)
|
|
{
|
|
//added : 02-02-98 : use BASEVIDWIDTH, vid.width is not set already,
|
|
// and it seems it needs to be calculated only once.
|
|
scale = FixedDiv((BASEVIDWIDTH/2*FRACUNIT), (j+1)<<LIGHTZSHIFT);
|
|
scale >>= LIGHTSCALESHIFT;
|
|
level = startmapl - scale/DISTMAP;
|
|
|
|
if (level < 0)
|
|
level = 0;
|
|
|
|
if (level >= NUMCOLORMAPS)
|
|
level = NUMCOLORMAPS-1;
|
|
|
|
zlight[i][j] = colormaps + level*256;
|
|
}
|
|
}
|
|
}
|
|
|
|
//#define WOUGHMP_WOUGHMP // I got a fish-eye lens - I'll make a rap video with a couple of friends
|
|
// it's kinda laggy sometimes
|
|
|
|
#ifdef WOUGHMP_WOUGHMP
|
|
#define AHHHH_IM_SO_MAAAAD { 0U, 0, FRACUNIT, NULL, 0, 0, {0}, {0}, false }
|
|
#else
|
|
#define AHHHH_IM_SO_MAAAAD { 0U, FRACUNIT, NULL, 0, 0, {0}, {0}, false }
|
|
#endif
|
|
|
|
static struct viewmorph {
|
|
angle_t rollangle; // pre-shifted by fineshift
|
|
#ifdef WOUGHMP_WOUGHMP
|
|
fixed_t fisheye;
|
|
#endif
|
|
|
|
fixed_t zoomneeded;
|
|
INT32 *scrmap;
|
|
INT32 scrmapsize;
|
|
|
|
INT32 x1; // clip rendering horizontally for efficiency
|
|
INT16 ceilingclip[MAXVIDWIDTH], floorclip[MAXVIDWIDTH];
|
|
|
|
boolean use;
|
|
} viewmorph[MAXSPLITSCREENPLAYERS] = {
|
|
AHHHH_IM_SO_MAAAAD,
|
|
AHHHH_IM_SO_MAAAAD,
|
|
AHHHH_IM_SO_MAAAAD,
|
|
AHHHH_IM_SO_MAAAAD,
|
|
};
|
|
|
|
#undef AHHHH_IM_SO_MAAAAD
|
|
|
|
void R_CheckViewMorph(int s)
|
|
{
|
|
struct viewmorph * v = &viewmorph[s];
|
|
|
|
float zoomfactor, rollcos, rollsin;
|
|
float x1, y1, x2, y2;
|
|
fixed_t temp;
|
|
INT32 end, vx, vy, pos, usedpos;
|
|
INT32 realend;
|
|
INT32 usedx, usedy;
|
|
|
|
INT32 width = vid.width;
|
|
INT32 height = vid.height;
|
|
|
|
INT32 halfwidth;
|
|
INT32 halfheight;
|
|
|
|
#ifdef WOUGHMP_WOUGHMP
|
|
float fisheyemap[MAXVIDWIDTH/2 + 1];
|
|
#endif
|
|
|
|
angle_t rollangle = viewroll;
|
|
#ifdef WOUGHMP_WOUGHMP
|
|
fixed_t fisheye = cv_cam2_turnmultiplier.value; // temporary test value
|
|
#endif
|
|
|
|
rollangle >>= ANGLETOFINESHIFT;
|
|
rollangle = ((rollangle+2) & ~3) & FINEMASK; // Limit the distinct number of angles to reduce recalcs from angles changing a lot.
|
|
|
|
#ifdef WOUGHMP_WOUGHMP
|
|
fisheye &= ~0x7FF; // Same
|
|
#endif
|
|
|
|
if (r_splitscreen > 0)
|
|
{
|
|
height /= 2;
|
|
|
|
if (r_splitscreen > 1)
|
|
{
|
|
width /= 2;
|
|
}
|
|
}
|
|
|
|
halfwidth = width / 2;
|
|
halfheight = height / 2;
|
|
|
|
if (rollangle == v->rollangle &&
|
|
#ifdef WOUGHMP_WOUGHMP
|
|
fisheye == v->fisheye &&
|
|
#endif
|
|
v->scrmapsize == width * height)
|
|
return; // No change
|
|
|
|
v->rollangle = rollangle;
|
|
#ifdef WOUGHMP_WOUGHMP
|
|
v->fisheye = fisheye;
|
|
#endif
|
|
|
|
if (v->rollangle == 0
|
|
#ifdef WOUGHMP_WOUGHMP
|
|
&& v->fisheye == 0
|
|
#endif
|
|
)
|
|
{
|
|
v->use = false;
|
|
v->x1 = 0;
|
|
if (v->zoomneeded != FRACUNIT)
|
|
R_SetViewSize();
|
|
v->zoomneeded = FRACUNIT;
|
|
|
|
return;
|
|
}
|
|
|
|
if (v->scrmapsize != width * height)
|
|
{
|
|
if (v->scrmap)
|
|
free(v->scrmap);
|
|
v->scrmap = malloc(width * height * sizeof(INT32));
|
|
v->scrmapsize = width * height;
|
|
}
|
|
|
|
temp = FINECOSINE(rollangle);
|
|
rollcos = FIXED_TO_FLOAT(temp);
|
|
temp = FINESINE(rollangle);
|
|
rollsin = FIXED_TO_FLOAT(temp);
|
|
|
|
// Calculate maximum zoom needed
|
|
x1 = (width * fabsf(rollcos) + height * fabsf(rollsin)) / width;
|
|
y1 = (height * fabsf(rollcos) + width * fabsf(rollsin)) / height;
|
|
|
|
#ifdef WOUGHMP_WOUGHMP
|
|
if (fisheye)
|
|
{
|
|
float f = FIXED_TO_FLOAT(fisheye);
|
|
for (vx = 0; vx <= halfwidth; vx++)
|
|
fisheyemap[vx] = 1.0f / cos(atan(vx * f / halfwidth));
|
|
|
|
f = cos(atan(f));
|
|
if (f < 1.0f)
|
|
{
|
|
x1 /= f;
|
|
y1 /= f;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
temp = max(x1, y1)*FRACUNIT;
|
|
if (temp < FRACUNIT)
|
|
temp = FRACUNIT;
|
|
else
|
|
temp |= 0x3FFF; // Limit how many times the viewport needs to be recalculated
|
|
|
|
//CONS_Printf("Setting zoom to %f\n", FIXED_TO_FLOAT(temp));
|
|
|
|
if (temp != v->zoomneeded)
|
|
{
|
|
v->zoomneeded = temp;
|
|
R_SetViewSize();
|
|
}
|
|
|
|
zoomfactor = FIXED_TO_FLOAT(v->zoomneeded);
|
|
|
|
realend = end = width * height - 1;
|
|
|
|
if (r_splitscreen > 1)
|
|
{
|
|
realend = ( realend << 1 ) - width;
|
|
}
|
|
|
|
pos = 0;
|
|
|
|
// Pre-multiply rollcos and rollsin to use for positional stuff
|
|
rollcos /= zoomfactor;
|
|
rollsin /= zoomfactor;
|
|
|
|
x1 = -(halfwidth * rollcos - halfheight * rollsin);
|
|
y1 = -(halfheight * rollcos + halfwidth * rollsin);
|
|
|
|
#ifdef WOUGHMP_WOUGHMP
|
|
if (fisheye)
|
|
v->x1 = (INT32)(halfwidth - (halfwidth * fabsf(rollcos) + halfheight * fabsf(rollsin)) * fisheyemap[halfwidth]);
|
|
else
|
|
#endif
|
|
v->x1 = (INT32)(halfwidth - (halfwidth * fabsf(rollcos) + halfheight * fabsf(rollsin)));
|
|
//CONS_Printf("saving %d cols\n", v->x1);
|
|
|
|
// Set ceilingclip and floorclip
|
|
for (vx = 0; vx < width; vx++)
|
|
{
|
|
v->ceilingclip[vx] = height;
|
|
v->floorclip[vx] = -1;
|
|
}
|
|
x2 = x1;
|
|
y2 = y1;
|
|
for (vx = 0; vx < width; vx++)
|
|
{
|
|
INT16 xa, ya, xb, yb;
|
|
xa = x2+halfwidth;
|
|
ya = y2+halfheight-1;
|
|
xb = width-1-xa;
|
|
yb = height-1-ya;
|
|
|
|
v->ceilingclip[xa] = min(v->ceilingclip[xa], ya);
|
|
v->floorclip[xa] = max(v->floorclip[xa], ya);
|
|
v->ceilingclip[xb] = min(v->ceilingclip[xb], yb);
|
|
v->floorclip[xb] = max(v->floorclip[xb], yb);
|
|
x2 += rollcos;
|
|
y2 += rollsin;
|
|
}
|
|
x2 = x1;
|
|
y2 = y1;
|
|
for (vy = 0; vy < height; vy++)
|
|
{
|
|
INT16 xa, ya, xb, yb;
|
|
xa = x2+halfwidth;
|
|
ya = y2+halfheight;
|
|
xb = width-1-xa;
|
|
yb = height-1-ya;
|
|
|
|
v->ceilingclip[xa] = min(v->ceilingclip[xa], ya);
|
|
v->floorclip[xa] = max(v->floorclip[xa], ya);
|
|
v->ceilingclip[xb] = min(v->ceilingclip[xb], yb);
|
|
v->floorclip[xb] = max(v->floorclip[xb], yb);
|
|
x2 -= rollsin;
|
|
y2 += rollcos;
|
|
}
|
|
|
|
//CONS_Printf("Top left corner is %f %f\n", x1, y1);
|
|
|
|
#ifdef WOUGHMP_WOUGHMP
|
|
if (fisheye)
|
|
{
|
|
for (vy = 0; vy < halfheight; vy++)
|
|
{
|
|
x2 = x1;
|
|
y2 = y1;
|
|
x1 -= rollsin;
|
|
y1 += rollcos;
|
|
|
|
for (vx = 0; vx < width; vx++)
|
|
{
|
|
usedx = halfwidth + x2*fisheyemap[(int) floorf(fabsf(y2*zoomfactor))];
|
|
usedy = halfheight + y2*fisheyemap[(int) floorf(fabsf(x2*zoomfactor))];
|
|
|
|
usedpos = usedx + usedy*width;
|
|
|
|
v->scrmap[pos] = usedpos;
|
|
v->scrmap[end-pos] = end-usedpos;
|
|
|
|
x2 += rollcos;
|
|
y2 += rollsin;
|
|
pos++;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#endif
|
|
x1 += halfwidth;
|
|
y1 += halfheight;
|
|
|
|
for (vy = 0; vy < halfheight; vy++)
|
|
{
|
|
x2 = x1;
|
|
y2 = y1;
|
|
x1 -= rollsin;
|
|
y1 += rollcos;
|
|
|
|
for (vx = 0; vx < width; vx++)
|
|
{
|
|
usedx = x2;
|
|
usedy = y2;
|
|
|
|
usedpos = usedx + usedy * vid.width;
|
|
|
|
v->scrmap[pos] = usedpos;
|
|
v->scrmap[end-pos] = realend-usedpos;
|
|
|
|
x2 += rollcos;
|
|
y2 += rollsin;
|
|
pos++;
|
|
}
|
|
}
|
|
#ifdef WOUGHMP_WOUGHMP
|
|
}
|
|
#endif
|
|
|
|
v->use = true;
|
|
}
|
|
|
|
void R_ApplyViewMorph(int s)
|
|
{
|
|
UINT8 *tmpscr = screens[4];
|
|
UINT8 *srcscr = screens[0];
|
|
INT32 width = vid.width;
|
|
INT32 height = vid.height;
|
|
INT32 p;
|
|
INT32 end;
|
|
|
|
if (!viewmorph[s].use)
|
|
return;
|
|
|
|
if (r_splitscreen == 1)
|
|
{
|
|
height /= 2;
|
|
|
|
if (s == 1)
|
|
{
|
|
srcscr += vid.width * height;
|
|
}
|
|
}
|
|
else if (r_splitscreen > 1)
|
|
{
|
|
width /= 2;
|
|
height /= 2;
|
|
|
|
if (s % 2)
|
|
{
|
|
srcscr += width;
|
|
}
|
|
|
|
if (s > 1)
|
|
{
|
|
srcscr += vid.width * height;
|
|
}
|
|
}
|
|
|
|
end = width * height;
|
|
|
|
for (p = 0; p < end; p++)
|
|
{
|
|
tmpscr[p] = srcscr[viewmorph[s].scrmap[p]];
|
|
}
|
|
|
|
VID_BlitLinearScreen(tmpscr, srcscr,
|
|
width*vid.bpp, height, width*vid.bpp, vid.width);
|
|
}
|
|
|
|
angle_t R_ViewRollAngle(const player_t *player)
|
|
{
|
|
angle_t roll = 0;
|
|
|
|
if (gamestate != GS_LEVEL)
|
|
{
|
|
// FIXME: The way this is implemented is totally
|
|
// incompatible with cameras that aren't directly
|
|
// tied to the player. (podium, titlemap,
|
|
// MT_ALTVIEWMAN in general)
|
|
|
|
// All of these player variables should affect their
|
|
// camera_t in P_MoveChaseCamera, and then this
|
|
// just returns that variable instead.
|
|
return 0;
|
|
}
|
|
|
|
roll = player->viewrollangle;
|
|
|
|
if (cv_tilting.value)
|
|
{
|
|
if (!player->spectator)
|
|
{
|
|
roll += player->tilt;
|
|
}
|
|
|
|
if (cv_actionmovie.value)
|
|
{
|
|
int xs = intsign(quake.x),
|
|
ys = intsign(quake.y),
|
|
zs = intsign(quake.z);
|
|
roll += (xs ^ ys ^ zs) * ANG1;
|
|
}
|
|
}
|
|
|
|
return roll;
|
|
}
|
|
|
|
|
|
//
|
|
// R_SetViewSize
|
|
// Do not really change anything here,
|
|
// because it might be in the middle of a refresh.
|
|
// The change will take effect next refresh.
|
|
//
|
|
boolean setsizeneeded;
|
|
|
|
void R_SetViewSize(void)
|
|
{
|
|
setsizeneeded = true;
|
|
}
|
|
|
|
//
|
|
// R_ExecuteSetViewSize
|
|
//
|
|
void R_ExecuteSetViewSize(void)
|
|
{
|
|
fixed_t dy;
|
|
INT32 i;
|
|
INT32 j;
|
|
INT32 level;
|
|
INT32 startmapl;
|
|
angle_t fov;
|
|
int s;
|
|
|
|
setsizeneeded = false;
|
|
|
|
if (rendermode == render_none)
|
|
return;
|
|
|
|
// status bar overlay
|
|
st_overlay = cv_showhud.value;
|
|
|
|
scaledviewwidth = vid.width;
|
|
viewheight = vid.height;
|
|
|
|
if (r_splitscreen)
|
|
viewheight >>= 1;
|
|
|
|
viewwidth = scaledviewwidth;
|
|
|
|
if (r_splitscreen > 1)
|
|
{
|
|
viewwidth >>= 1;
|
|
scaledviewwidth >>= 1;
|
|
}
|
|
|
|
centerx = viewwidth/2;
|
|
centery = viewheight/2;
|
|
centerxfrac = centerx<<FRACBITS;
|
|
centeryfrac = centery<<FRACBITS;
|
|
|
|
for (s = 0; s <= r_splitscreen; ++s)
|
|
{
|
|
fov = FixedAngle(cv_fov[s].value/2) + ANGLE_90;
|
|
fovtan[s] = FixedMul(FINETANGENT(fov >> ANGLETOFINESHIFT), viewmorph[s].zoomneeded);
|
|
if (r_splitscreen == 1) // Splitscreen FOV should be adjusted to maintain expected vertical view
|
|
fovtan[s] = 17*fovtan[s]/10;
|
|
|
|
projection[s] = projectiony[s] = FixedDiv(centerxfrac, fovtan[s]);
|
|
|
|
R_InitTextureMapping(s);
|
|
|
|
// planes
|
|
if (rendermode == render_soft)
|
|
{
|
|
// this is only used for planes rendering in software mode
|
|
j = viewheight*16;
|
|
for (i = 0; i < j; i++)
|
|
{
|
|
dy = ((i - viewheight*8)<<FRACBITS);
|
|
dy = FixedMul(abs(dy), fovtan[s]);
|
|
yslopetab[s][i] = FixedDiv(centerx*FRACUNIT, dy);
|
|
}
|
|
}
|
|
}
|
|
|
|
R_InitViewBuffer(scaledviewwidth, viewheight);
|
|
|
|
// thing clipping
|
|
for (i = 0; i < viewwidth; i++)
|
|
screenheightarray[i] = (INT16)viewheight;
|
|
|
|
// setup sky scaling
|
|
R_SetSkyScale();
|
|
|
|
// planes
|
|
if (rendermode == render_soft)
|
|
{
|
|
if (ds_su)
|
|
Z_Free(ds_su);
|
|
if (ds_sv)
|
|
Z_Free(ds_sv);
|
|
if (ds_sz)
|
|
Z_Free(ds_sz);
|
|
|
|
ds_su = ds_sv = ds_sz = NULL;
|
|
ds_sup = ds_svp = ds_szp = NULL;
|
|
}
|
|
|
|
memset(scalelight, 0xFF, sizeof(scalelight));
|
|
|
|
// Calculate the light levels to use for each level/scale combination.
|
|
for (i = 0; i< LIGHTLEVELS; i++)
|
|
{
|
|
startmapl = ((LIGHTLEVELS - 1 - i)*2)*NUMCOLORMAPS/LIGHTLEVELS;
|
|
for (j = 0; j < MAXLIGHTSCALE; j++)
|
|
{
|
|
level = startmapl - j*vid.width/(viewwidth)/DISTMAP;
|
|
|
|
if (level < 0)
|
|
level = 0;
|
|
|
|
if (level >= NUMCOLORMAPS)
|
|
level = NUMCOLORMAPS - 1;
|
|
|
|
scalelight[i][j] = colormaps + level*256;
|
|
}
|
|
}
|
|
|
|
// continue to do the software setviewsize as long as we use the reference software view
|
|
#ifdef HWRENDER
|
|
if (rendermode != render_soft)
|
|
HWR_SetViewSize();
|
|
#endif
|
|
|
|
am_recalc = true;
|
|
}
|
|
|
|
//
|
|
// R_Init
|
|
//
|
|
|
|
void R_Init(void)
|
|
{
|
|
// screensize independent
|
|
//I_OutputMsg("\nR_InitData");
|
|
//R_InitData(); -- split to d_main for its own startup steps since it takes AGES
|
|
CONS_Printf("R_InitColormaps()...\n");
|
|
R_InitColormaps();
|
|
|
|
//I_OutputMsg("\nR_InitViewBorder");
|
|
R_InitViewBorder();
|
|
R_SetViewSize(); // setsizeneeded is set true
|
|
|
|
//I_OutputMsg("\nR_InitPlanes");
|
|
R_InitPlanes();
|
|
|
|
// this is now done by SCR_Recalc() at the first mode set
|
|
//I_OutputMsg("\nR_InitLightTables");
|
|
R_InitLightTables();
|
|
|
|
//I_OutputMsg("\nR_InitTranslucencyTables\n");
|
|
//R_InitTranslucencyTables();
|
|
|
|
R_InitDrawNodes();
|
|
|
|
framecount = 0;
|
|
}
|
|
|
|
//
|
|
// R_PointInSubsector
|
|
//
|
|
subsector_t *R_PointInSubsector(fixed_t x, fixed_t y)
|
|
{
|
|
size_t nodenum = numnodes-1;
|
|
|
|
while (!(nodenum & NF_SUBSECTOR))
|
|
nodenum = nodes[nodenum].children[R_PointOnSide(x, y, nodes+nodenum)];
|
|
|
|
return &subsectors[nodenum & ~NF_SUBSECTOR];
|
|
}
|
|
|
|
//
|
|
// R_PointInSubsectorOrNull, same as above but returns 0 if not in subsector
|
|
//
|
|
subsector_t *R_PointInSubsectorOrNull(fixed_t x, fixed_t y)
|
|
{
|
|
node_t *node;
|
|
INT32 side, i;
|
|
size_t nodenum;
|
|
subsector_t *ret;
|
|
seg_t *seg;
|
|
|
|
// single subsector is a special case
|
|
if (numnodes == 0)
|
|
return subsectors;
|
|
|
|
nodenum = numnodes - 1;
|
|
|
|
while (!(nodenum & NF_SUBSECTOR))
|
|
{
|
|
node = &nodes[nodenum];
|
|
side = R_PointOnSide(x, y, node);
|
|
nodenum = node->children[side];
|
|
}
|
|
|
|
ret = &subsectors[nodenum & ~NF_SUBSECTOR];
|
|
for (i = 0, seg = &segs[ret->firstline]; i < ret->numlines; i++, seg++)
|
|
{
|
|
if (seg->glseg)
|
|
continue;
|
|
|
|
//if (R_PointOnSegSide(x, y, seg)) -- breaks in ogl because polyvertex_t cast over vertex pointers
|
|
if (P_PointOnLineSide(x, y, seg->linedef) != seg->side)
|
|
return 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
//
|
|
// R_SetupFrame
|
|
//
|
|
|
|
static void
|
|
R_SetupCommonFrame
|
|
( player_t * player,
|
|
subsector_t * subsector)
|
|
{
|
|
newview->player = player;
|
|
|
|
newview->x += quake.x;
|
|
newview->y += quake.y;
|
|
newview->z += quake.z;
|
|
|
|
newview->roll = R_ViewRollAngle(player);
|
|
|
|
if (subsector)
|
|
newview->sector = subsector->sector;
|
|
else
|
|
newview->sector = R_PointInSubsector(newview->x, newview->y)->sector;
|
|
|
|
R_InterpolateView(rendertimefrac);
|
|
}
|
|
|
|
static void R_SetupAimingFrame(int s)
|
|
{
|
|
player_t *player = &players[displayplayers[s]];
|
|
camera_t *thiscam = &camera[s];
|
|
|
|
if (player->awayview.tics)
|
|
{
|
|
newview->aim = player->awayview.mobj->pitch;
|
|
newview->angle = player->awayview.mobj->angle;
|
|
}
|
|
else if (thiscam && thiscam->chase)
|
|
{
|
|
newview->aim = thiscam->aiming;
|
|
newview->angle = thiscam->angle;
|
|
}
|
|
else if (!demo.playback && player->playerstate != PST_DEAD)
|
|
{
|
|
newview->aim = localaiming[s];
|
|
newview->angle = localangle[s];
|
|
}
|
|
else
|
|
{
|
|
newview->aim = player->aiming;
|
|
newview->angle = player->mo->angle;
|
|
}
|
|
}
|
|
|
|
void R_SetupFrame(int s)
|
|
{
|
|
player_t *player = &players[displayplayers[s]];
|
|
camera_t *thiscam = &camera[s];
|
|
boolean chasecam = (cv_chasecam[s].value != 0);
|
|
|
|
R_SetViewContext(VIEWCONTEXT_PLAYER1 + s);
|
|
|
|
if (player->spectator) // no spectator chasecam
|
|
chasecam = false; // force chasecam off
|
|
|
|
if (chasecam && (thiscam && !thiscam->chase))
|
|
{
|
|
P_ResetCamera(player, thiscam);
|
|
thiscam->chase = true;
|
|
}
|
|
else if (!chasecam)
|
|
thiscam->chase = false;
|
|
|
|
newview->sky = false;
|
|
|
|
R_SetupAimingFrame(s);
|
|
|
|
if (player->awayview.tics)
|
|
{
|
|
// cut-away view stuff
|
|
r_viewmobj = player->awayview.mobj; // should be a MT_ALTVIEWMAN
|
|
I_Assert(r_viewmobj != NULL);
|
|
|
|
newview->x = r_viewmobj->x;
|
|
newview->y = r_viewmobj->y;
|
|
newview->z = r_viewmobj->z;
|
|
|
|
R_SetupCommonFrame(player, r_viewmobj->subsector);
|
|
}
|
|
else if (!player->spectator && chasecam)
|
|
// use outside cam view
|
|
{
|
|
r_viewmobj = NULL;
|
|
|
|
newview->x = thiscam->x;
|
|
newview->y = thiscam->y;
|
|
newview->z = thiscam->z + (thiscam->height>>1);
|
|
|
|
R_SetupCommonFrame(player, thiscam->subsector);
|
|
}
|
|
else
|
|
// use the player's eyes view
|
|
{
|
|
r_viewmobj = player->mo;
|
|
I_Assert(r_viewmobj != NULL);
|
|
|
|
newview->x = r_viewmobj->x;
|
|
newview->y = r_viewmobj->y;
|
|
newview->z = player->viewz;
|
|
|
|
R_SetupCommonFrame(player, r_viewmobj->subsector);
|
|
}
|
|
}
|
|
|
|
void R_SkyboxFrame(int s)
|
|
{
|
|
player_t *player = &players[displayplayers[s]];
|
|
camera_t *thiscam = &camera[s];
|
|
|
|
R_SetViewContext(VIEWCONTEXT_SKY1 + s);
|
|
|
|
// cut-away view stuff
|
|
newview->sky = true;
|
|
r_viewmobj = player->skybox.viewpoint;
|
|
#ifdef PARANOIA
|
|
if (!r_viewmobj)
|
|
{
|
|
const size_t playeri = (size_t)(player - players);
|
|
I_Error("R_SkyboxFrame: r_viewmobj null (player %s)", sizeu1(playeri));
|
|
}
|
|
#endif
|
|
|
|
R_SetupAimingFrame(s);
|
|
|
|
newview->angle += r_viewmobj->angle;
|
|
|
|
newview->x = r_viewmobj->x;
|
|
newview->y = r_viewmobj->y;
|
|
newview->z = r_viewmobj->z; // 26/04/17: use actual Z position instead of spawnpoint angle!
|
|
|
|
if (mapheaderinfo[gamemap-1])
|
|
{
|
|
mapheader_t *mh = mapheaderinfo[gamemap-1];
|
|
vector3_t campos = {0,0,0}; // Position of player's actual view point
|
|
mobj_t *center = player->skybox.centerpoint;
|
|
|
|
if (player->awayview.tics) {
|
|
campos.x = player->awayview.mobj->x;
|
|
campos.y = player->awayview.mobj->y;
|
|
campos.z = player->awayview.mobj->z;
|
|
} else if (thiscam->chase) {
|
|
campos.x = thiscam->x;
|
|
campos.y = thiscam->y;
|
|
campos.z = thiscam->z + (thiscam->height>>1);
|
|
} else {
|
|
campos.x = player->mo->x;
|
|
campos.y = player->mo->y;
|
|
campos.z = player->viewz;
|
|
}
|
|
|
|
// Earthquake effects should be scaled in the skybox
|
|
// (if an axis isn't used, the skybox won't shake in that direction)
|
|
campos.x += quake.x;
|
|
campos.y += quake.y;
|
|
campos.z += quake.z;
|
|
|
|
if (center) // Is there a viewpoint?
|
|
{
|
|
fixed_t x = 0, y = 0;
|
|
if (mh->skybox_scalex > 0)
|
|
x = (campos.x - center->x) / mh->skybox_scalex;
|
|
else if (mh->skybox_scalex < 0)
|
|
x = (campos.x - center->x) * -mh->skybox_scalex;
|
|
|
|
if (mh->skybox_scaley > 0)
|
|
y = (campos.y - center->y) / mh->skybox_scaley;
|
|
else if (mh->skybox_scaley < 0)
|
|
y = (campos.y - center->y) * -mh->skybox_scaley;
|
|
|
|
if (r_viewmobj->angle == 0)
|
|
{
|
|
newview->x += x;
|
|
newview->y += y;
|
|
}
|
|
else if (r_viewmobj->angle == ANGLE_90)
|
|
{
|
|
newview->x -= y;
|
|
newview->y += x;
|
|
}
|
|
else if (r_viewmobj->angle == ANGLE_180)
|
|
{
|
|
newview->x -= x;
|
|
newview->y -= y;
|
|
}
|
|
else if (r_viewmobj->angle == ANGLE_270)
|
|
{
|
|
newview->x += y;
|
|
newview->y -= x;
|
|
}
|
|
else
|
|
{
|
|
angle_t ang = r_viewmobj->angle>>ANGLETOFINESHIFT;
|
|
newview->x += FixedMul(x,FINECOSINE(ang)) - FixedMul(y, FINESINE(ang));
|
|
newview->y += FixedMul(x, FINESINE(ang)) + FixedMul(y,FINECOSINE(ang));
|
|
}
|
|
}
|
|
if (mh->skybox_scalez > 0)
|
|
newview->z += campos.z / mh->skybox_scalez;
|
|
else if (mh->skybox_scalez < 0)
|
|
newview->z += campos.z * -mh->skybox_scalez;
|
|
}
|
|
|
|
|
|
R_SetupCommonFrame(player, r_viewmobj->subsector);
|
|
}
|
|
|
|
boolean R_ViewpointHasChasecam(player_t *player)
|
|
{
|
|
boolean chasecam = false;
|
|
UINT8 i;
|
|
|
|
for (i = 0; i <= splitscreen; i++)
|
|
{
|
|
if (player == &players[g_localplayers[i]])
|
|
{
|
|
chasecam = (cv_chasecam[i].value != 0);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (player->playerstate == PST_DEAD || gamestate == GS_TITLESCREEN || tutorialmode)
|
|
chasecam = true; // force chasecam on
|
|
else if (player->spectator) // no spectator chasecam
|
|
chasecam = false; // force chasecam off
|
|
|
|
return chasecam;
|
|
}
|
|
|
|
boolean R_IsViewpointThirdPerson(player_t *player, boolean skybox)
|
|
{
|
|
boolean chasecam = R_ViewpointHasChasecam(player);
|
|
|
|
// cut-away view stuff
|
|
if (player->awayview.tics || skybox)
|
|
return chasecam;
|
|
// use outside cam view
|
|
else if (!player->spectator && chasecam)
|
|
return true;
|
|
|
|
// use the player's eyes view
|
|
return false;
|
|
}
|
|
|
|
static void R_PortalFrame(portal_t *portal)
|
|
{
|
|
viewx = portal->viewx;
|
|
viewy = portal->viewy;
|
|
viewz = portal->viewz;
|
|
|
|
viewangle = portal->viewangle;
|
|
viewsin = FINESINE(viewangle>>ANGLETOFINESHIFT);
|
|
viewcos = FINECOSINE(viewangle>>ANGLETOFINESHIFT);
|
|
|
|
portalclipstart = portal->start;
|
|
portalclipend = portal->end;
|
|
|
|
if (portal->clipline != -1)
|
|
{
|
|
portalclipline = &lines[portal->clipline];
|
|
portalcullsector = portalclipline->frontsector;
|
|
viewsector = portalclipline->frontsector;
|
|
}
|
|
else
|
|
{
|
|
portalclipline = NULL;
|
|
portalcullsector = NULL;
|
|
viewsector = R_PointInSubsector(viewx, viewy)->sector;
|
|
}
|
|
}
|
|
|
|
static void Mask_Pre (maskcount_t* m)
|
|
{
|
|
m->drawsegs[0] = ds_p - drawsegs;
|
|
m->vissprites[0] = visspritecount;
|
|
m->viewx = viewx;
|
|
m->viewy = viewy;
|
|
m->viewz = viewz;
|
|
m->viewsector = viewsector;
|
|
}
|
|
|
|
static void Mask_Post (maskcount_t* m)
|
|
{
|
|
m->drawsegs[1] = ds_p - drawsegs;
|
|
m->vissprites[1] = visspritecount;
|
|
}
|
|
|
|
// ================
|
|
// R_RenderView
|
|
// ================
|
|
|
|
// FAB NOTE FOR WIN32 PORT !! I'm not finished already,
|
|
// but I suspect network may have problems with the video buffer being locked
|
|
// for all duration of rendering, and being released only once at the end..
|
|
// I mean, there is a win16lock() or something that lasts all the rendering,
|
|
// so maybe we should release screen lock before each netupdate below..?
|
|
|
|
void R_RenderPlayerView(void)
|
|
{
|
|
player_t * player = &players[displayplayers[viewssnum]];
|
|
INT32 nummasks = 1;
|
|
maskcount_t* masks = malloc(sizeof(maskcount_t));
|
|
|
|
// if this is display player 1
|
|
if (cv_homremoval.value && player == &players[displayplayers[0]])
|
|
{
|
|
if (cv_homremoval.value == 1)
|
|
{
|
|
// Clear the software screen buffer to remove HOM
|
|
memset(screens[0], 31, vid.width * vid.height * vid.bpp);
|
|
}
|
|
else
|
|
{
|
|
//'development' HOM removal -- makes it blindingly obvious if HOM is spotted.
|
|
memset(screens[0], 32+(timeinmap&15), vid.width * vid.height * vid.bpp);
|
|
}
|
|
}
|
|
else if (r_splitscreen == 2 && player == &players[displayplayers[2]])
|
|
{
|
|
// Draw over the fourth screen so you don't have to stare at a HOM :V
|
|
V_DrawFill(viewwidth, viewheight, viewwidth, viewheight, 31|V_NOSCALESTART);
|
|
}
|
|
|
|
R_SetupFrame(viewssnum);
|
|
framecount++;
|
|
validcount++;
|
|
|
|
// Clear buffers.
|
|
R_ClearPlanes();
|
|
if (viewmorph[viewssnum].use)
|
|
{
|
|
portalclipstart = viewmorph[viewssnum].x1;
|
|
portalclipend = viewwidth-viewmorph[viewssnum].x1-1;
|
|
R_PortalClearClipSegs(portalclipstart, portalclipend);
|
|
memcpy(ceilingclip, viewmorph[viewssnum].ceilingclip, sizeof(INT16)*vid.width);
|
|
memcpy(floorclip, viewmorph[viewssnum].floorclip, sizeof(INT16)*vid.width);
|
|
}
|
|
else
|
|
{
|
|
portalclipstart = 0;
|
|
portalclipend = viewwidth;
|
|
R_ClearClipSegs();
|
|
}
|
|
R_ClearDrawSegs();
|
|
R_ClearSprites();
|
|
Portal_InitList();
|
|
|
|
// The head node is the last node output.
|
|
|
|
Mask_Pre(&masks[nummasks - 1]);
|
|
curdrawsegs = ds_p;
|
|
//profile stuff ---------------------------------------------------------
|
|
#ifdef TIMING
|
|
mytotal = 0;
|
|
ProfZeroTimer();
|
|
#endif
|
|
ps_numbspcalls = ps_numpolyobjects = ps_numdrawnodes = 0;
|
|
ps_bsptime = I_GetPreciseTime();
|
|
R_RenderBSPNode((INT32)numnodes - 1);
|
|
ps_bsptime = I_GetPreciseTime() - ps_bsptime;
|
|
ps_numsprites = visspritecount;
|
|
#ifdef TIMING
|
|
RDMSR(0x10, &mycount);
|
|
mytotal += mycount; // 64bit add
|
|
|
|
CONS_Debug(DBG_RENDER, "RenderBSPNode: 0x%d %d\n", *((INT32 *)&mytotal + 1), (INT32)mytotal);
|
|
#endif
|
|
//profile stuff ---------------------------------------------------------
|
|
Mask_Post(&masks[nummasks - 1]);
|
|
|
|
ps_sw_spritecliptime = I_GetPreciseTime();
|
|
R_ClipSprites(drawsegs, NULL);
|
|
ps_sw_spritecliptime = I_GetPreciseTime() - ps_sw_spritecliptime;
|
|
|
|
|
|
// Add skybox portals caused by sky visplanes.
|
|
if (cv_skybox.value && player->skybox.viewpoint)
|
|
Portal_AddSkyboxPortals(player);
|
|
|
|
// Portal rendering. Hijacks the BSP traversal.
|
|
ps_sw_portaltime = I_GetPreciseTime();
|
|
if (portal_base)
|
|
{
|
|
portal_t *portal;
|
|
|
|
for(portal = portal_base; portal; portal = portal_base)
|
|
{
|
|
portalrender = portal->pass; // Recursiveness depth.
|
|
|
|
R_ClearFFloorClips();
|
|
|
|
// Apply the viewpoint stored for the portal.
|
|
R_PortalFrame(portal);
|
|
|
|
// Hack in the clipsegs to delimit the starting
|
|
// clipping for sprites and possibly other similar
|
|
// future items.
|
|
R_PortalClearClipSegs(portal->start, portal->end);
|
|
|
|
// Hack in the top/bottom clip values for the window
|
|
// that were previously stored.
|
|
Portal_ClipApply(portal);
|
|
|
|
validcount++;
|
|
|
|
masks = realloc(masks, (++nummasks)*sizeof(maskcount_t));
|
|
|
|
Mask_Pre(&masks[nummasks - 1]);
|
|
curdrawsegs = ds_p;
|
|
|
|
portalskipprecipmobjs = portal->isskybox;
|
|
|
|
// Render the BSP from the new viewpoint, and clip
|
|
// any sprites with the new clipsegs and window.
|
|
R_RenderBSPNode((INT32)numnodes - 1);
|
|
Mask_Post(&masks[nummasks - 1]);
|
|
|
|
portalskipprecipmobjs = false;
|
|
|
|
R_ClipSprites(ds_p - (masks[nummasks - 1].drawsegs[1] - masks[nummasks - 1].drawsegs[0]), portal);
|
|
|
|
Portal_Remove(portal);
|
|
}
|
|
}
|
|
ps_sw_portaltime = I_GetPreciseTime() - ps_sw_portaltime;
|
|
|
|
ps_sw_planetime = I_GetPreciseTime();
|
|
R_DrawPlanes();
|
|
ps_sw_planetime = I_GetPreciseTime() - ps_sw_planetime;
|
|
|
|
// draw mid texture and sprite
|
|
// And now 3D floors/sides!
|
|
ps_sw_maskedtime = I_GetPreciseTime();
|
|
R_DrawMasked(masks, nummasks);
|
|
ps_sw_maskedtime = I_GetPreciseTime() - ps_sw_maskedtime;
|
|
|
|
free(masks);
|
|
}
|
|
|
|
// =========================================================================
|
|
// ENGINE COMMANDS & VARS
|
|
// =========================================================================
|
|
|
|
void R_RegisterEngineStuff(void)
|
|
{
|
|
UINT8 i;
|
|
|
|
CV_RegisterVar(&cv_gravity);
|
|
CV_RegisterVar(&cv_tailspickup);
|
|
CV_RegisterVar(&cv_allowmlook);
|
|
CV_RegisterVar(&cv_homremoval);
|
|
|
|
#ifdef SCRAMBLE_REMOVED
|
|
CV_RegisterVar(&cv_scrambleremoved);
|
|
#endif
|
|
// Enough for dedicated server
|
|
if (dedicated)
|
|
return;
|
|
|
|
CV_RegisterVar(&cv_drawdist);
|
|
CV_RegisterVar(&cv_drawdist_precip);
|
|
|
|
CV_RegisterVar(&cv_shadow);
|
|
CV_RegisterVar(&cv_skybox);
|
|
CV_RegisterVar(&cv_ffloorclip);
|
|
|
|
for (i = 0; i < MAXSPLITSCREENPLAYERS; i++)
|
|
{
|
|
CV_RegisterVar(&cv_fov[i]);
|
|
CV_RegisterVar(&cv_chasecam[i]);
|
|
CV_RegisterVar(&cv_cam_dist[i]);
|
|
CV_RegisterVar(&cv_cam_still[i]);
|
|
CV_RegisterVar(&cv_cam_height[i]);
|
|
CV_RegisterVar(&cv_cam_speed[i]);
|
|
CV_RegisterVar(&cv_cam_rotate[i]);
|
|
}
|
|
|
|
CV_RegisterVar(&cv_tilting);
|
|
CV_RegisterVar(&cv_actionmovie);
|
|
CV_RegisterVar(&cv_windowquake);
|
|
|
|
CV_RegisterVar(&cv_showhud);
|
|
CV_RegisterVar(&cv_translucenthud);
|
|
|
|
CV_RegisterVar(&cv_maxportals);
|
|
|
|
CV_RegisterVar(&cv_movebob);
|
|
|
|
// Frame interpolation/uncapped
|
|
CV_RegisterVar(&cv_fpscap);
|
|
|
|
CV_RegisterVar(&cv_drawpickups);
|
|
|
|
CV_RegisterVar(&cv_debugfinishline);
|
|
|
|
// debugging
|
|
|
|
CV_RegisterVar(&cv_debugrender_contrast);
|
|
CV_RegisterVar(&cv_debugrender_spriteclip);
|
|
|
|
COM_AddCommand("debugrender_highlight", Command_Debugrender_highlight);
|
|
}
|