mirror of
https://github.com/ZDoom/qzdoom.git
synced 2024-11-12 07:34:50 +00:00
02d7572343
- some consolidation in p_map.cpp. PIT_CheckLine and PIT_FindFloorCeiling had quite a bit of redundancy which has been merged. - čontinued work on FMultiBlockLinesIterator. It's still not completely finished.
1098 lines
29 KiB
C++
1098 lines
29 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_segs.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;
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|
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_EnterPortal
|
|
//
|
|
// [RH] Draw the reflection inside a mirror
|
|
// [ZZ] Merged with portal code, originally called R_EnterMirror
|
|
//
|
|
//==========================================================================
|
|
|
|
CVAR(Int, r_portal_recursions, 4, CVAR_ARCHIVE)
|
|
CVAR(Bool, r_highlight_portals, false, CVAR_ARCHIVE)
|
|
|
|
void R_HighlightPortal (PortalDrawseg* pds)
|
|
{
|
|
// [ZZ] NO OVERFLOW CHECKS HERE
|
|
// I believe it won't break. if it does, blame me. :(
|
|
|
|
BYTE color = (BYTE)BestColor((DWORD *)GPalette.BaseColors, 255, 0, 0, 0, 255);
|
|
|
|
BYTE* pixels = RenderTarget->GetBuffer();
|
|
// top edge
|
|
for (int x = pds->x1; x < pds->x2; x++)
|
|
{
|
|
if (x < 0 || x >= RenderTarget->GetWidth())
|
|
continue;
|
|
|
|
int p = x - pds->x1;
|
|
int Ytop = pds->ceilingclip[p];
|
|
int Ybottom = pds->floorclip[p];
|
|
|
|
if (x == pds->x1 || x == pds->x2-1)
|
|
{
|
|
RenderTarget->DrawLine(x, Ytop, x, Ybottom+1, color, 0);
|
|
continue;
|
|
}
|
|
|
|
int YtopPrev = pds->ceilingclip[p-1];
|
|
int YbottomPrev = pds->floorclip[p-1];
|
|
|
|
if (abs(Ytop-YtopPrev) > 1)
|
|
RenderTarget->DrawLine(x, YtopPrev, x, Ytop, color, 0);
|
|
else *(pixels + Ytop * RenderTarget->GetPitch() + x) = color;
|
|
|
|
if (abs(Ybottom-YbottomPrev) > 1)
|
|
RenderTarget->DrawLine(x, YbottomPrev, x, Ybottom, color, 0);
|
|
else *(pixels + Ybottom * RenderTarget->GetPitch() + x) = color;
|
|
}
|
|
}
|
|
|
|
void R_EnterPortal (PortalDrawseg* pds, int depth)
|
|
{
|
|
// [ZZ] check depth. fill portal with black if it's exceeding the visual recursion limit, and continue like nothing happened.
|
|
if (depth >= r_portal_recursions)
|
|
{
|
|
BYTE color = (BYTE)BestColor((DWORD *)GPalette.BaseColors, 0, 0, 0, 0, 255);
|
|
int spacing = RenderTarget->GetPitch();
|
|
for (int x = pds->x1; x < pds->x2; x++)
|
|
{
|
|
if (x < 0 || x >= RenderTarget->GetWidth())
|
|
continue;
|
|
|
|
int Ytop = pds->ceilingclip[x-pds->x1];
|
|
int Ybottom = pds->floorclip[x-pds->x1];
|
|
|
|
BYTE *dest = RenderTarget->GetBuffer() + x + Ytop * spacing;
|
|
|
|
for (int y = Ytop; y <= Ybottom; y++)
|
|
{
|
|
*dest = color;
|
|
dest += spacing;
|
|
}
|
|
}
|
|
|
|
if (r_highlight_portals)
|
|
R_HighlightPortal(pds);
|
|
|
|
return;
|
|
}
|
|
|
|
angle_t startang = viewangle;
|
|
fixed_t startx = viewx;
|
|
fixed_t starty = viewy;
|
|
fixed_t startz = viewz;
|
|
|
|
CurrentPortalUniq++;
|
|
|
|
unsigned int portalsAtStart = WallPortals.Size ();
|
|
|
|
if (pds->mirror)
|
|
{
|
|
//vertex_t *v1 = ds->curline->v1;
|
|
vertex_t *v1 = pds->src->v1;
|
|
|
|
// Reflect the current view behind the mirror.
|
|
if (pds->src->dx == 0)
|
|
{ // vertical mirror
|
|
viewx = v1->x - startx + v1->x;
|
|
}
|
|
else if (pds->src->dy == 0)
|
|
{ // horizontal mirror
|
|
viewy = v1->y - starty + v1->y;
|
|
}
|
|
else
|
|
{ // any mirror--use floats to avoid integer overflow
|
|
vertex_t *v2 = pds->src->v2;
|
|
|
|
double dx = FIXED2DBL(v2->x - v1->x);
|
|
double dy = FIXED2DBL(v2->y - v1->y);
|
|
double x1 = FIXED2DBL(v1->x);
|
|
double y1 = FIXED2DBL(v1->y);
|
|
double x = FIXED2DBL(startx);
|
|
double y = FIXED2DBL(starty);
|
|
|
|
// the above two cases catch len == 0
|
|
double 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 (pds->src->v1->x, pds->src->v1->y,
|
|
pds->src->v2->x, pds->src->v2->y) - startang;
|
|
|
|
}
|
|
else
|
|
{
|
|
P_TranslatePortalXY(pds->src, pds->dst, viewx, viewy);
|
|
P_TranslatePortalZ(pds->src, pds->dst, viewz);
|
|
P_TranslatePortalAngle(pds->src, pds->dst, viewangle);
|
|
}
|
|
|
|
viewsin = finesine[viewangle>>ANGLETOFINESHIFT];
|
|
viewcos = finecosine[viewangle>>ANGLETOFINESHIFT];
|
|
|
|
viewtansin = FixedMul (FocalTangent, viewsin);
|
|
viewtancos = FixedMul (FocalTangent, viewcos);
|
|
|
|
R_CopyStackedViewParameters();
|
|
|
|
validcount++;
|
|
PortalDrawseg* prevpds = CurrentPortal;
|
|
CurrentPortal = pds;
|
|
|
|
R_ClearPlanes (false);
|
|
R_ClearClipSegs (pds->x1, pds->x2);
|
|
|
|
WindowLeft = pds->x1;
|
|
WindowRight = pds->x2;
|
|
|
|
// RF_XFLIP should be removed before calling the root function
|
|
int prevmf = MirrorFlags;
|
|
if (pds->mirror)
|
|
{
|
|
if (MirrorFlags & RF_XFLIP)
|
|
MirrorFlags &= ~RF_XFLIP;
|
|
else MirrorFlags |= RF_XFLIP;
|
|
}
|
|
|
|
// some portals have height differences, account for this here
|
|
R_3D_EnterSkybox(); // push 3D floor height map
|
|
CurrentPortalInSkybox = false; // first portal in a skybox should set this variable to false for proper clipping in skyboxes.
|
|
|
|
// first pass, set clipping
|
|
memcpy (ceilingclip + pds->x1, &pds->ceilingclip[0], pds->len*sizeof(*ceilingclip));
|
|
memcpy (floorclip + pds->x1, &pds->floorclip[0], pds->len*sizeof(*floorclip));
|
|
|
|
R_RenderBSPNode (nodes + numnodes - 1);
|
|
R_3D_ResetClip(); // reset clips (floor/ceiling)
|
|
|
|
PlaneCycles.Clock();
|
|
R_DrawPlanes ();
|
|
R_DrawSkyBoxes ();
|
|
PlaneCycles.Unclock();
|
|
|
|
fixed_t vzp = viewz;
|
|
|
|
int prevuniq = CurrentPortalUniq;
|
|
// depth check is in another place right now
|
|
unsigned int portalsAtEnd = WallPortals.Size ();
|
|
for (; portalsAtStart < portalsAtEnd; portalsAtStart++)
|
|
{
|
|
R_EnterPortal (&WallPortals[portalsAtStart], depth + 1);
|
|
}
|
|
int prevuniq2 = CurrentPortalUniq;
|
|
CurrentPortalUniq = prevuniq;
|
|
|
|
NetUpdate();
|
|
|
|
MaskedCycles.Clock(); // [ZZ] count sprites in portals/mirrors along with normal ones.
|
|
R_DrawMasked (); // this is required since with portals there often will be cases when more than 80% of the view is inside a portal.
|
|
MaskedCycles.Unclock();
|
|
|
|
NetUpdate();
|
|
|
|
R_3D_LeaveSkybox(); // pop 3D floor height map
|
|
CurrentPortalUniq = prevuniq2;
|
|
|
|
// draw a red line around a portal if it's being highlighted
|
|
if (r_highlight_portals)
|
|
R_HighlightPortal(pds);
|
|
|
|
CurrentPortal = prevpds;
|
|
MirrorFlags = prevmf;
|
|
viewangle = startang;
|
|
viewx = startx;
|
|
viewy = starty;
|
|
viewz = startz;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// 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;
|
|
CurrentPortal = NULL;
|
|
CurrentPortalUniq = 0;
|
|
|
|
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
|
|
// [ZZ] Merged with portals
|
|
size_t lastportal = WallPortals.Size();
|
|
for (unsigned int i = 0; i < lastportal; i++)
|
|
{
|
|
R_EnterPortal(&WallPortals[i], 0);
|
|
}
|
|
|
|
CurrentPortal = NULL;
|
|
CurrentPortalUniq = 0;
|
|
|
|
NetUpdate ();
|
|
|
|
MaskedCycles.Clock();
|
|
R_DrawMasked ();
|
|
MaskedCycles.Unclock();
|
|
|
|
NetUpdate ();
|
|
}
|
|
WallPortals.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;
|
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}
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#endif
|