mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-18 02:12:00 +00:00
240ca2af4c
- The original Doom renderer was inclusive for all right edges. This was fine for the wonky projection it did. This was not fine for a standard perspective divide, so I had to change walls to be right-edge exclusive when I changed the projection. I only touched what was needed. Until now. The right edge is always exclusive now, which should prevent any more bugs related to mixing the two clusivities incorrectly.
976 lines
25 KiB
C++
976 lines
25 KiB
C++
// Emacs style mode select -*- C++ -*-
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//-----------------------------------------------------------------------------
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//
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// $Id:$
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//
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// Copyright (C) 1993-1996 by id Software, Inc.
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//
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// This source is available for distribution and/or modification
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// only under the terms of the DOOM Source Code License as
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// published by id Software. All rights reserved.
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//
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// The source is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
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// for more details.
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//
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// $Log:$
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//
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// DESCRIPTION:
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// 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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//
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//-----------------------------------------------------------------------------
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// HEADER FILES ------------------------------------------------------------
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#include <stdlib.h>
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#include <math.h>
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#include "templates.h"
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#include "doomdef.h"
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#include "d_net.h"
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#include "doomstat.h"
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#include "m_random.h"
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#include "m_bbox.h"
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#include "r_local.h"
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#include "r_plane.h"
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#include "r_bsp.h"
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#include "r_3dfloors.h"
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#include "r_sky.h"
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#include "st_stuff.h"
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#include "c_cvars.h"
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#include "c_dispatch.h"
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#include "v_video.h"
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#include "stats.h"
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#include "i_video.h"
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#include "i_system.h"
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#include "a_sharedglobal.h"
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#include "r_data/r_translate.h"
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#include "p_3dmidtex.h"
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#include "r_data/r_interpolate.h"
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#include "v_palette.h"
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#include "po_man.h"
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#include "p_effect.h"
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#include "st_start.h"
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#include "v_font.h"
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#include "r_data/colormaps.h"
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#include "farchive.h"
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// MACROS ------------------------------------------------------------------
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#if 0
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#define TEST_X 32343794
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#define TEST_Y 111387517
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#define TEST_Z 2164524
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#define TEST_ANGLE 2468347904
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#endif
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// TYPES -------------------------------------------------------------------
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// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
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void R_SpanInitData ();
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void R_DeinitSprites();
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// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
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// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
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static void R_ShutdownRenderer();
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// EXTERNAL DATA DECLARATIONS ----------------------------------------------
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extern short *openings;
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extern bool r_fakingunderwater;
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extern "C" int fuzzviewheight;
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// PRIVATE DATA DECLARATIONS -----------------------------------------------
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static float CurrentVisibility = 8.f;
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static fixed_t MaxVisForWall;
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static fixed_t MaxVisForFloor;
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extern bool r_showviewer;
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bool r_dontmaplines;
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// PUBLIC DATA DEFINITIONS -------------------------------------------------
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CVAR (String, r_viewsize, "", CVAR_NOSET)
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CVAR (Bool, r_shadercolormaps, true, CVAR_ARCHIVE)
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fixed_t r_BaseVisibility;
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fixed_t r_WallVisibility;
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fixed_t r_FloorVisibility;
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float r_TiltVisibility;
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fixed_t r_SpriteVisibility;
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fixed_t r_ParticleVisibility;
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fixed_t r_SkyVisibility;
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fixed_t GlobVis;
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fixed_t viewingrangerecip;
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fixed_t FocalLengthX;
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fixed_t FocalLengthY;
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float FocalLengthXfloat;
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FDynamicColormap*basecolormap; // [RH] colormap currently drawing with
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int fixedlightlev;
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lighttable_t *fixedcolormap;
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FSpecialColormap *realfixedcolormap;
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float WallTMapScale2;
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bool bRenderingToCanvas; // [RH] True if rendering to a special canvas
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fixed_t globaluclip, globaldclip;
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fixed_t centerxfrac;
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fixed_t centeryfrac;
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fixed_t yaspectmul;
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fixed_t baseyaspectmul; // yaspectmul without a forced aspect ratio
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float iyaspectmulfloat;
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fixed_t InvZtoScale;
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// just for profiling purposes
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int linecount;
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int loopcount;
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//
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// precalculated math tables
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//
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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[MAXWIDTH+1];
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bool foggy; // [RH] ignore extralight and fullbright?
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int r_actualextralight;
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void (*colfunc) (void);
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void (*basecolfunc) (void);
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void (*fuzzcolfunc) (void);
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void (*transcolfunc) (void);
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void (*spanfunc) (void);
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void (*hcolfunc_pre) (void);
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void (*hcolfunc_post1) (int hx, int sx, int yl, int yh);
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void (*hcolfunc_post2) (int hx, int sx, int yl, int yh);
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void (STACK_ARGS *hcolfunc_post4) (int sx, int yl, int yh);
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cycle_t WallCycles, PlaneCycles, MaskedCycles, WallScanCycles;
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// PRIVATE DATA DEFINITIONS ------------------------------------------------
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static int lastcenteryfrac;
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// CODE --------------------------------------------------------------------
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//==========================================================================
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//
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// viewangletox
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//
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// Used solely for construction the xtoviewangle table.
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//
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//==========================================================================
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static inline int viewangletox(int i)
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{
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if (finetangent[i] > FRACUNIT*2)
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{
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return -1;
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}
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else if (finetangent[i] < -FRACUNIT*2)
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{
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return viewwidth+1;
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}
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else
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{
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int t = FixedMul(finetangent[i], FocalLengthX);
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t = (centerxfrac - t + FRACUNIT-1) >> FRACBITS;
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return clamp(t, -1, viewwidth+1);
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}
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}
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//==========================================================================
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//
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// R_InitTextureMapping
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//
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//==========================================================================
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void R_InitTextureMapping ()
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{
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int i, x;
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// Calc focallength so FieldOfView fineangles covers viewwidth.
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FocalLengthX = FixedDiv (centerxfrac, FocalTangent);
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FocalLengthY = Scale (centerxfrac, yaspectmul, FocalTangent);
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FocalLengthXfloat = (float)FocalLengthX / 65536.f;
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// This is 1/FocalTangent before the widescreen extension of FOV.
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viewingrangerecip = DivScale32(1, finetangent[FINEANGLES/4+(FieldOfView/2)]);
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// [RH] Do not generate viewangletox, because texture mapping is no
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// longer done with trig, so it's not needed.
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// Now generate xtoviewangle for sky texture mapping.
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// We do this with a hybrid approach: The center 90 degree span is
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// constructed as per the original code:
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// Scan xtoviewangle to find the smallest view angle that maps to x.
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// (viewangletox is sorted in non-increasing order.)
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// This reduces the chances of "doubling-up" of texture columns in
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// the drawn sky texture.
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// The remaining arcs are done with tantoangle instead.
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const int t1 = MAX<int>(centerx - (FocalLengthX >> FRACBITS), 0);
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const int t2 = MIN<int>(centerx + (FocalLengthX >> FRACBITS), viewwidth);
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const fixed_t dfocus = FocalLengthX >> DBITS;
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for (i = 0, x = t2; x >= t1; --x)
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{
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while(viewangletox(i) > x)
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{
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++i;
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}
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xtoviewangle[x] = (i << ANGLETOFINESHIFT) - ANGLE_90;
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}
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for (x = t2 + 1; x <= viewwidth; ++x)
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{
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xtoviewangle[x] = ANGLE_270 + tantoangle[dfocus / (x - centerx)];
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}
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for (x = 0; x < t1; ++x)
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{
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xtoviewangle[x] = (angle_t)(-(signed)xtoviewangle[viewwidth - x]);
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}
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}
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//==========================================================================
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//
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// R_SetVisibility
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//
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// Changes how rapidly things get dark with distance
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//
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//==========================================================================
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void R_SetVisibility (float vis)
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{
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// Allow negative visibilities, just for novelty's sake
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vis = clamp (vis, -204.7f, 204.7f); // (205 and larger do not work in 5:4 aspect ratio)
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CurrentVisibility = vis;
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if (FocalTangent == 0 || FocalLengthY == 0)
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{ // If r_visibility is called before the renderer is all set up, don't
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// divide by zero. This will be called again later, and the proper
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// values can be initialized then.
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return;
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}
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r_BaseVisibility = xs_RoundToInt(vis * 65536.f);
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// Prevent overflow on walls
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if (r_BaseVisibility < 0 && r_BaseVisibility < -MaxVisForWall)
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r_WallVisibility = -MaxVisForWall;
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else if (r_BaseVisibility > 0 && r_BaseVisibility > MaxVisForWall)
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r_WallVisibility = MaxVisForWall;
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else
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r_WallVisibility = r_BaseVisibility;
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r_WallVisibility = FixedMul (Scale (InvZtoScale, SCREENWIDTH*BaseRatioSizes[WidescreenRatio][1],
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viewwidth*SCREENHEIGHT*3), FixedMul (r_WallVisibility, FocalTangent));
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// Prevent overflow on floors/ceilings. Note that the calculation of
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// MaxVisForFloor means that planes less than two units from the player's
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// view could still overflow, but there is no way to totally eliminate
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// that while still using fixed point math.
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if (r_BaseVisibility < 0 && r_BaseVisibility < -MaxVisForFloor)
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r_FloorVisibility = -MaxVisForFloor;
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else if (r_BaseVisibility > 0 && r_BaseVisibility > MaxVisForFloor)
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r_FloorVisibility = MaxVisForFloor;
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else
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r_FloorVisibility = r_BaseVisibility;
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r_FloorVisibility = Scale (160*FRACUNIT, r_FloorVisibility, FocalLengthY);
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r_TiltVisibility = vis * (float)FocalTangent * (16.f * 320.f) / (float)viewwidth;
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r_SpriteVisibility = r_WallVisibility;
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}
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//==========================================================================
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//
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// R_GetVisibility
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//
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//==========================================================================
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float R_GetVisibility ()
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{
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return CurrentVisibility;
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}
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//==========================================================================
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//
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// CCMD r_visibility
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//
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// Controls how quickly light ramps across a 1/z range. Set this, and it
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// sets all the r_*Visibility variables (except r_SkyVisibilily, which is
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// currently unused).
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//
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//==========================================================================
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CCMD (r_visibility)
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{
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if (argv.argc() < 2)
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{
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Printf ("Visibility is %g\n", R_GetVisibility());
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}
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else if (!netgame)
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{
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R_SetVisibility ((float)atof (argv[1]));
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}
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else
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{
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Printf ("Visibility cannot be changed in net games.\n");
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}
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}
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//==========================================================================
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//
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// R_SetWindow
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//
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//==========================================================================
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void R_SWRSetWindow(int windowSize, int fullWidth, int fullHeight, int stHeight, int trueratio)
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{
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int virtheight, virtwidth, virtwidth2, virtheight2;
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if (!bRenderingToCanvas)
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{ // Set r_viewsize cvar to reflect the current view size
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UCVarValue value;
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char temp[16];
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mysnprintf (temp, countof(temp), "%d x %d", viewwidth, viewheight);
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value.String = temp;
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r_viewsize.ForceSet (value, CVAR_String);
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}
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fuzzviewheight = viewheight - 2; // Maximum row the fuzzer can draw to
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halfviewwidth = (viewwidth >> 1) - 1;
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lastcenteryfrac = 1<<30;
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centerxfrac = centerx<<FRACBITS;
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centeryfrac = centery<<FRACBITS;
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virtwidth = virtwidth2 = fullWidth;
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virtheight = virtheight2 = fullHeight;
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if (trueratio & 4)
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{
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virtheight2 = virtheight2 * BaseRatioSizes[trueratio][3] / 48;
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}
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else
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{
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virtwidth2 = virtwidth2 * BaseRatioSizes[trueratio][3] / 48;
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}
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if (WidescreenRatio & 4)
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{
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virtheight = virtheight * BaseRatioSizes[WidescreenRatio][3] / 48;
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}
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else
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{
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virtwidth = virtwidth * BaseRatioSizes[WidescreenRatio][3] / 48;
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}
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baseyaspectmul = Scale(320 << FRACBITS, virtheight2, r_Yaspect * virtwidth2);
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yaspectmul = Scale ((320<<FRACBITS), virtheight, r_Yaspect * virtwidth);
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iyaspectmulfloat = (float)virtwidth * r_Yaspect / 320.f / (float)virtheight;
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InvZtoScale = yaspectmul * centerx;
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WallTMapScale2 = iyaspectmulfloat * 64.f / (float)centerx;
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// psprite scales
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pspritexscale = (centerxwide << FRACBITS) / 160;
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pspriteyscale = FixedMul (pspritexscale, yaspectmul);
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pspritexiscale = FixedDiv (FRACUNIT, pspritexscale);
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// thing clipping
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clearbufshort (screenheightarray, viewwidth, (short)viewheight);
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R_InitTextureMapping ();
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MaxVisForWall = FixedMul (Scale (InvZtoScale, SCREENWIDTH*r_Yaspect,
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viewwidth*SCREENHEIGHT), FocalTangent);
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MaxVisForWall = FixedDiv (0x7fff0000, MaxVisForWall);
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MaxVisForFloor = Scale (FixedDiv (0x7fff0000, viewheight<<(FRACBITS-2)), FocalLengthY, 160*FRACUNIT);
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// Reset r_*Visibility vars
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R_SetVisibility (R_GetVisibility ());
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}
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//==========================================================================
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//
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// CVAR r_columnmethod
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//
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// Selects which version of the seg renderers to use.
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//
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//==========================================================================
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CUSTOM_CVAR (Int, r_columnmethod, 1, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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{
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if (self != 0 && self != 1)
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{
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self = 1;
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}
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else
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{ // Trigger the change
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setsizeneeded = true;
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}
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}
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//==========================================================================
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//
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// R_Init
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//
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//==========================================================================
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void R_InitRenderer()
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{
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atterm(R_ShutdownRenderer);
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// viewwidth / viewheight are set by the defaults
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clearbufshort (zeroarray, MAXWIDTH, 0);
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R_InitPlanes ();
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R_InitShadeMaps();
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R_InitColumnDrawers ();
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colfunc = basecolfunc = R_DrawColumn;
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fuzzcolfunc = R_DrawFuzzColumn;
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transcolfunc = R_DrawTranslatedColumn;
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spanfunc = R_DrawSpan;
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// [RH] Horizontal column drawers
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hcolfunc_pre = R_DrawColumnHoriz;
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hcolfunc_post1 = rt_map1col;
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hcolfunc_post4 = rt_map4cols;
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}
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//==========================================================================
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//
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// R_ShutdownRenderer
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//
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//==========================================================================
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static void R_ShutdownRenderer()
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{
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R_DeinitSprites();
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R_DeinitPlanes();
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// Free openings
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if (openings != NULL)
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{
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M_Free (openings);
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openings = NULL;
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}
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// Free drawsegs
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if (drawsegs != NULL)
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{
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M_Free (drawsegs);
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drawsegs = NULL;
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}
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}
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//==========================================================================
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//
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// R_CopyStackedViewParameters
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//
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//==========================================================================
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void R_CopyStackedViewParameters()
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{
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stacked_viewx = viewx;
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stacked_viewy = viewy;
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stacked_viewz = viewz;
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stacked_angle = viewangle;
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stacked_extralight = extralight;
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stacked_visibility = R_GetVisibility();
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}
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//==========================================================================
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//
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// R_SetupColormap
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//
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// Sets up special fixed colormaps
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//
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//==========================================================================
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void R_SetupColormap(player_t *player)
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{
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realfixedcolormap = NULL;
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fixedcolormap = NULL;
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fixedlightlev = -1;
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if (player != NULL && camera == player->mo)
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{
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if (player->fixedcolormap >= 0 && player->fixedcolormap < (int)SpecialColormaps.Size())
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{
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realfixedcolormap = &SpecialColormaps[player->fixedcolormap];
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if (RenderTarget == screen && (DFrameBuffer *)screen->Accel2D && r_shadercolormaps)
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{
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// Render everything fullbright. The copy to video memory will
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// apply the special colormap, so it won't be restricted to the
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// palette.
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fixedcolormap = realcolormaps;
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}
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else
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{
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fixedcolormap = SpecialColormaps[player->fixedcolormap].Colormap;
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}
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}
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else if (player->fixedlightlevel >= 0 && player->fixedlightlevel < NUMCOLORMAPS)
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{
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fixedlightlev = player->fixedlightlevel * 256;
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}
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}
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// [RH] Inverse light for shooting the Sigil
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if (fixedcolormap == NULL && extralight == INT_MIN)
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{
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|
fixedcolormap = SpecialColormaps[INVERSECOLORMAP].Colormap;
|
|
extralight = 0;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// R_SetupFreelook
|
|
//
|
|
// [RH] freelook stuff
|
|
//
|
|
//==========================================================================
|
|
|
|
void R_SetupFreelook()
|
|
{
|
|
{
|
|
fixed_t dy;
|
|
|
|
if (camera != NULL)
|
|
{
|
|
dy = FixedMul (FocalLengthY, finetangent[(ANGLE_90-viewpitch)>>ANGLETOFINESHIFT]);
|
|
}
|
|
else
|
|
{
|
|
dy = 0;
|
|
}
|
|
|
|
centeryfrac = (viewheight << (FRACBITS-1)) + dy;
|
|
centery = centeryfrac >> FRACBITS;
|
|
globaluclip = FixedDiv (-centeryfrac, InvZtoScale);
|
|
globaldclip = FixedDiv ((viewheight<<FRACBITS)-centeryfrac, InvZtoScale);
|
|
|
|
//centeryfrac &= 0xffff0000;
|
|
int e, i;
|
|
|
|
i = 0;
|
|
e = viewheight;
|
|
fixed_t focus = FocalLengthY;
|
|
fixed_t den;
|
|
if (i < centery)
|
|
{
|
|
den = centeryfrac - (i << FRACBITS) - FRACUNIT/2;
|
|
if (e <= centery)
|
|
{
|
|
do {
|
|
yslope[i] = FixedDiv (focus, den);
|
|
den -= FRACUNIT;
|
|
} while (++i < e);
|
|
}
|
|
else
|
|
{
|
|
do {
|
|
yslope[i] = FixedDiv (focus, den);
|
|
den -= FRACUNIT;
|
|
} while (++i < centery);
|
|
den = (i << FRACBITS) - centeryfrac + FRACUNIT/2;
|
|
do {
|
|
yslope[i] = FixedDiv (focus, den);
|
|
den += FRACUNIT;
|
|
} while (++i < e);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
den = (i << FRACBITS) - centeryfrac + FRACUNIT/2;
|
|
do {
|
|
yslope[i] = FixedDiv (focus, den);
|
|
den += FRACUNIT;
|
|
} while (++i < e);
|
|
}
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// R_EnterMirror
|
|
//
|
|
// [RH] Draw the reflection inside a mirror
|
|
//
|
|
//==========================================================================
|
|
|
|
void R_EnterMirror (drawseg_t *ds, int depth)
|
|
{
|
|
angle_t startang = viewangle;
|
|
fixed_t startx = viewx;
|
|
fixed_t starty = viewy;
|
|
|
|
CurrentMirror++;
|
|
|
|
unsigned int mirrorsAtStart = WallMirrors.Size ();
|
|
|
|
vertex_t *v1 = ds->curline->v1;
|
|
|
|
// Reflect the current view behind the mirror.
|
|
if (ds->curline->linedef->dx == 0)
|
|
{ // vertical mirror
|
|
viewx = v1->x - startx + v1->x;
|
|
}
|
|
else if (ds->curline->linedef->dy == 0)
|
|
{ // horizontal mirror
|
|
viewy = v1->y - starty + v1->y;
|
|
}
|
|
else
|
|
{ // any mirror--use floats to avoid integer overflow
|
|
vertex_t *v2 = ds->curline->v2;
|
|
|
|
float dx = FIXED2FLOAT(v2->x - v1->x);
|
|
float dy = FIXED2FLOAT(v2->y - v1->y);
|
|
float x1 = FIXED2FLOAT(v1->x);
|
|
float y1 = FIXED2FLOAT(v1->y);
|
|
float x = FIXED2FLOAT(startx);
|
|
float y = FIXED2FLOAT(starty);
|
|
|
|
// the above two cases catch len == 0
|
|
float r = ((x - x1)*dx + (y - y1)*dy) / (dx*dx + dy*dy);
|
|
|
|
viewx = FLOAT2FIXED((x1 + r * dx)*2 - x);
|
|
viewy = FLOAT2FIXED((y1 + r * dy)*2 - y);
|
|
}
|
|
viewangle = 2*R_PointToAngle2 (ds->curline->v1->x, ds->curline->v1->y,
|
|
ds->curline->v2->x, ds->curline->v2->y) - startang;
|
|
|
|
viewsin = finesine[viewangle>>ANGLETOFINESHIFT];
|
|
viewcos = finecosine[viewangle>>ANGLETOFINESHIFT];
|
|
|
|
viewtansin = FixedMul (FocalTangent, viewsin);
|
|
viewtancos = FixedMul (FocalTangent, viewcos);
|
|
|
|
R_CopyStackedViewParameters();
|
|
|
|
validcount++;
|
|
ActiveWallMirror = ds->curline;
|
|
|
|
R_ClearPlanes (false);
|
|
R_ClearClipSegs (ds->x1, ds->x2);
|
|
|
|
memcpy (ceilingclip + ds->x1, openings + ds->sprtopclip, (ds->x2 - ds->x1)*sizeof(*ceilingclip));
|
|
memcpy (floorclip + ds->x1, openings + ds->sprbottomclip, (ds->x2 - ds->x1)*sizeof(*floorclip));
|
|
|
|
WindowLeft = ds->x1;
|
|
WindowRight = ds->x2;
|
|
MirrorFlags = (depth + 1) & 1;
|
|
|
|
R_RenderBSPNode (nodes + numnodes - 1);
|
|
R_3D_ResetClip(); // reset clips (floor/ceiling)
|
|
|
|
R_DrawPlanes ();
|
|
R_DrawSkyBoxes ();
|
|
|
|
// Allow up to 4 recursions through a mirror
|
|
if (depth < 4)
|
|
{
|
|
unsigned int mirrorsAtEnd = WallMirrors.Size ();
|
|
|
|
for (; mirrorsAtStart < mirrorsAtEnd; mirrorsAtStart++)
|
|
{
|
|
R_EnterMirror (drawsegs + WallMirrors[mirrorsAtStart], depth + 1);
|
|
}
|
|
}
|
|
|
|
viewangle = startang;
|
|
viewx = startx;
|
|
viewy = starty;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// R_SetupBuffer
|
|
//
|
|
// Precalculate all row offsets and fuzz table.
|
|
//
|
|
//==========================================================================
|
|
|
|
void R_SetupBuffer ()
|
|
{
|
|
static BYTE *lastbuff = NULL;
|
|
|
|
int pitch = RenderTarget->GetPitch();
|
|
BYTE *lineptr = RenderTarget->GetBuffer() + viewwindowy*pitch + viewwindowx;
|
|
|
|
if (dc_pitch != pitch || lineptr != lastbuff)
|
|
{
|
|
if (dc_pitch != pitch)
|
|
{
|
|
dc_pitch = pitch;
|
|
R_InitFuzzTable (pitch);
|
|
#if defined(X86_ASM) || defined(X64_ASM)
|
|
ASM_PatchPitch ();
|
|
#endif
|
|
}
|
|
dc_destorg = lineptr;
|
|
for (int i = 0; i < RenderTarget->GetHeight(); i++)
|
|
{
|
|
ylookup[i] = i * pitch;
|
|
}
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// R_RenderActorView
|
|
//
|
|
//==========================================================================
|
|
|
|
void R_RenderActorView (AActor *actor, bool dontmaplines)
|
|
{
|
|
WallCycles.Reset();
|
|
PlaneCycles.Reset();
|
|
MaskedCycles.Reset();
|
|
WallScanCycles.Reset();
|
|
|
|
fakeActive = 0; // kg3D - reset fake floor indicator
|
|
R_3D_ResetClip(); // reset clips (floor/ceiling)
|
|
|
|
R_SetupBuffer ();
|
|
R_SetupFrame (actor);
|
|
|
|
// Clear buffers.
|
|
R_ClearClipSegs (0, viewwidth);
|
|
R_ClearDrawSegs ();
|
|
R_ClearPlanes (true);
|
|
R_ClearSprites ();
|
|
|
|
NetUpdate ();
|
|
|
|
// [RH] Show off segs if r_drawflat is 1
|
|
if (r_drawflat)
|
|
{
|
|
hcolfunc_pre = R_FillColumnHorizP;
|
|
hcolfunc_post1 = rt_copy1col;
|
|
hcolfunc_post4 = rt_copy4cols;
|
|
colfunc = R_FillColumnP;
|
|
spanfunc = R_FillSpan;
|
|
}
|
|
else
|
|
{
|
|
hcolfunc_pre = R_DrawColumnHoriz;
|
|
hcolfunc_post1 = rt_map1col;
|
|
hcolfunc_post4 = rt_map4cols;
|
|
colfunc = basecolfunc;
|
|
spanfunc = R_DrawSpan;
|
|
}
|
|
|
|
WindowLeft = 0;
|
|
WindowRight = viewwidth;
|
|
MirrorFlags = 0;
|
|
ActiveWallMirror = NULL;
|
|
|
|
r_dontmaplines = dontmaplines;
|
|
|
|
// [RH] Hack to make windows into underwater areas possible
|
|
r_fakingunderwater = false;
|
|
|
|
// [RH] Setup particles for this frame
|
|
P_FindParticleSubsectors ();
|
|
|
|
WallCycles.Clock();
|
|
ActorRenderFlags savedflags = camera->renderflags;
|
|
// Never draw the player unless in chasecam mode
|
|
if (!r_showviewer)
|
|
{
|
|
camera->renderflags |= RF_INVISIBLE;
|
|
}
|
|
// Link the polyobjects right before drawing the scene to reduce the amounts of calls to this function
|
|
PO_LinkToSubsectors();
|
|
R_RenderBSPNode (nodes + numnodes - 1); // The head node is the last node output.
|
|
R_3D_ResetClip(); // reset clips (floor/ceiling)
|
|
camera->renderflags = savedflags;
|
|
WallCycles.Unclock();
|
|
|
|
NetUpdate ();
|
|
|
|
if (viewactive)
|
|
{
|
|
PlaneCycles.Clock();
|
|
R_DrawPlanes ();
|
|
R_DrawSkyBoxes ();
|
|
PlaneCycles.Unclock();
|
|
|
|
// [RH] Walk through mirrors
|
|
size_t lastmirror = WallMirrors.Size ();
|
|
for (unsigned int i = 0; i < lastmirror; i++)
|
|
{
|
|
R_EnterMirror (drawsegs + WallMirrors[i], 0);
|
|
}
|
|
|
|
NetUpdate ();
|
|
|
|
MaskedCycles.Clock();
|
|
R_DrawMasked ();
|
|
MaskedCycles.Unclock();
|
|
|
|
NetUpdate ();
|
|
}
|
|
WallMirrors.Clear ();
|
|
interpolator.RestoreInterpolations ();
|
|
R_SetupBuffer ();
|
|
|
|
// If we don't want shadered colormaps, NULL it now so that the
|
|
// copy to the screen does not use a special colormap shader.
|
|
if (!r_shadercolormaps)
|
|
{
|
|
realfixedcolormap = NULL;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// R_RenderViewToCanvas
|
|
//
|
|
// Pre: Canvas is already locked.
|
|
//
|
|
//==========================================================================
|
|
|
|
void R_RenderViewToCanvas (AActor *actor, DCanvas *canvas,
|
|
int x, int y, int width, int height, bool dontmaplines)
|
|
{
|
|
const bool savedviewactive = viewactive;
|
|
|
|
viewwidth = width;
|
|
RenderTarget = canvas;
|
|
bRenderingToCanvas = true;
|
|
|
|
R_SetWindow (12, width, height, height);
|
|
viewwindowx = x;
|
|
viewwindowy = y;
|
|
viewactive = true;
|
|
|
|
R_RenderActorView (actor, dontmaplines);
|
|
|
|
RenderTarget = screen;
|
|
bRenderingToCanvas = false;
|
|
R_ExecuteSetViewSize ();
|
|
screen->Lock (true);
|
|
R_SetupBuffer ();
|
|
screen->Unlock ();
|
|
viewactive = savedviewactive;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// R_MultiresInit
|
|
//
|
|
// Called from V_SetResolution()
|
|
//
|
|
//==========================================================================
|
|
|
|
void R_MultiresInit ()
|
|
{
|
|
R_PlaneInitData ();
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
// STAT fps
|
|
//
|
|
// Displays statistics about rendering times
|
|
//
|
|
//==========================================================================
|
|
extern cycle_t WallCycles, PlaneCycles, MaskedCycles, WallScanCycles;
|
|
extern cycle_t FrameCycles;
|
|
|
|
ADD_STAT (fps)
|
|
{
|
|
FString out;
|
|
out.Format("frame=%04.1f ms walls=%04.1f ms planes=%04.1f ms masked=%04.1f ms",
|
|
FrameCycles.TimeMS(), WallCycles.TimeMS(), PlaneCycles.TimeMS(), MaskedCycles.TimeMS());
|
|
return out;
|
|
}
|
|
|
|
|
|
static double f_acc, w_acc,p_acc,m_acc;
|
|
static int acc_c;
|
|
|
|
ADD_STAT (fps_accumulated)
|
|
{
|
|
f_acc += FrameCycles.TimeMS();
|
|
w_acc += WallCycles.TimeMS();
|
|
p_acc += PlaneCycles.TimeMS();
|
|
m_acc += MaskedCycles.TimeMS();
|
|
acc_c++;
|
|
FString out;
|
|
out.Format("frame=%04.1f ms walls=%04.1f ms planes=%04.1f ms masked=%04.1f ms %d counts",
|
|
f_acc/acc_c, w_acc/acc_c, p_acc/acc_c, m_acc/acc_c, acc_c);
|
|
Printf(PRINT_LOG, "%s\n", out.GetChars());
|
|
return out;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// STAT wallcycles
|
|
//
|
|
// Displays the minimum number of cycles spent drawing walls
|
|
//
|
|
//==========================================================================
|
|
|
|
static double bestwallcycles = HUGE_VAL;
|
|
|
|
ADD_STAT (wallcycles)
|
|
{
|
|
FString out;
|
|
double cycles = WallCycles.Time();
|
|
if (cycles && cycles < bestwallcycles)
|
|
bestwallcycles = cycles;
|
|
out.Format ("%g", bestwallcycles);
|
|
return out;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// CCMD clearwallcycles
|
|
//
|
|
// Resets the count of minimum wall drawing cycles
|
|
//
|
|
//==========================================================================
|
|
|
|
CCMD (clearwallcycles)
|
|
{
|
|
bestwallcycles = HUGE_VAL;
|
|
}
|
|
|
|
#if 1
|
|
// To use these, also uncomment the clock/unclock in wallscan
|
|
static double bestscancycles = HUGE_VAL;
|
|
|
|
ADD_STAT (scancycles)
|
|
{
|
|
FString out;
|
|
double scancycles = WallScanCycles.Time();
|
|
if (scancycles && scancycles < bestscancycles)
|
|
bestscancycles = scancycles;
|
|
out.Format ("%g", bestscancycles);
|
|
return out;
|
|
}
|
|
|
|
CCMD (clearscancycles)
|
|
{
|
|
bestscancycles = HUGE_VAL;
|
|
}
|
|
#endif
|