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SRB2/src/hardware/hw_main.c

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SRB2 2.1 release
2014-03-15 16:59:03 +00:00
// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// Copyright (C) 1998-2000 by DooM Legacy Team.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//-----------------------------------------------------------------------------
/// \file
/// \brief hardware renderer, using the standard HardWareRender driver DLL for SRB2
#include <math.h>
#include "../doomstat.h"
#ifdef HWRENDER
#include "hw_glob.h"
#include "hw_light.h"
#include "hw_drv.h"
#include "../i_video.h" // for rendermode == render_glide
#include "../v_video.h"
#include "../p_local.h"
#include "../p_setup.h"
#include "../r_local.h"
#include "../r_bsp.h"
#include "../d_clisrv.h"
#include "../w_wad.h"
#include "../z_zone.h"
#include "../r_splats.h"
#include "../g_game.h"
#include "../st_stuff.h"
#include "../i_system.h"
#include "../m_cheat.h"
#include "hw_md2.h"
#define R_FAKEFLOORS
//#define HWPRECIP
#define SORTING
//#define POLYSKY
// ==========================================================================
// the hardware driver object
// ==========================================================================
struct hwdriver_s hwdriver;
// ==========================================================================
// PROTOS
// ==========================================================================
static void HWR_AddSprites(sector_t *sec);
static void HWR_ProjectSprite(mobj_t *thing);
#ifdef HWPRECIP
static void HWR_ProjectPrecipitationSprite(precipmobj_t *thing);
#endif
#ifdef SORTING
void HWR_AddTransparentFloor(lumpnum_t lumpnum, extrasubsector_t *xsub, fixed_t fixedheight,
INT32 lightlevel, INT32 alpha, sector_t *FOFSector, FBITFIELD blend, boolean fogplane, extracolormap_t *planecolormap);
#else
static void HWR_Add3DWater(lumpnum_t lumpnum, extrasubsector_t *xsub, fixed_t fixedheight,
INT32 lightlevel, INT32 alpha, sector_t *FOFSector);
static void HWR_Render3DWater(void);
static void HWR_RenderTransparentWalls(void);
#endif
static void HWR_FoggingOn(void);
static UINT32 atohex(const char *s);
static void CV_filtermode_ONChange(void);
static void CV_anisotropic_ONChange(void);
static void CV_FogDensity_ONChange(void);
static void CV_grFov_OnChange(void);
// ==========================================================================
// 3D ENGINE COMMANDS & CONSOLE VARS
// ==========================================================================
static CV_PossibleValue_t grfov_cons_t[] = {{0, "MIN"}, {179*FRACUNIT, "MAX"}, {0, NULL}};
static CV_PossibleValue_t grfiltermode_cons_t[]= {{HWD_SET_TEXTUREFILTER_POINTSAMPLED, "Nearest"},
{HWD_SET_TEXTUREFILTER_BILINEAR, "Bilinear"}, {HWD_SET_TEXTUREFILTER_TRILINEAR, "Trilinear"},
{HWD_SET_TEXTUREFILTER_MIXED1, "Linear_Nearest"},
{HWD_SET_TEXTUREFILTER_MIXED2, "Nearest_Linear"},
{HWD_SET_TEXTUREFILTER_MIXED3, "Nearest_Mipmap"},
{0, NULL}};
CV_PossibleValue_t granisotropicmode_cons_t[] = {{1, "MIN"}, {16, "MAX"}, {0, NULL}};
boolean drawsky = true;
// needs fix: walls are incorrectly clipped one column less
static consvar_t cv_grclipwalls = {"gr_clipwalls", "Off", 0, CV_OnOff, NULL, 0, NULL, NULL, 0, 0, NULL};
//development variables for diverse uses
static consvar_t cv_gralpha = {"gr_alpha", "160", 0, CV_Unsigned, NULL, 0, NULL, NULL, 0, 0, NULL};
static consvar_t cv_grbeta = {"gr_beta", "0", 0, CV_Unsigned, NULL, 0, NULL, NULL, 0, 0, NULL};
static float HWRWipeCounter = 1.0f;
consvar_t cv_grrounddown = {"gr_rounddown", "Off", 0, CV_OnOff, NULL, 0, NULL, NULL, 0, 0, NULL};
consvar_t cv_grfov = {"gr_fov", "90", CV_FLOAT|CV_CALL, grfov_cons_t, CV_grFov_OnChange, 0, NULL, NULL, 0, 0, NULL};
consvar_t cv_grfogdensity = {"gr_fogdensity", "150", CV_CALL|CV_NOINIT, CV_Unsigned,
CV_FogDensity_ONChange, 0, NULL, NULL, 0, 0, NULL};
// Unfortunately, this can no longer be saved..
consvar_t cv_grfiltermode = {"gr_filtermode", "Nearest", CV_CALL, grfiltermode_cons_t,
CV_filtermode_ONChange, 0, NULL, NULL, 0, 0, NULL};
consvar_t cv_granisotropicmode = {"gr_anisotropicmode", "1", CV_CALL, granisotropicmode_cons_t,
CV_anisotropic_ONChange, 0, NULL, NULL, 0, 0, NULL};
//static consvar_t cv_grzbuffer = {"gr_zbuffer", "On", 0, CV_OnOff};
consvar_t cv_grcorrecttricks = {"gr_correcttricks", "On", 0, CV_OnOff, NULL, 0, NULL, NULL, 0, 0, NULL};
consvar_t cv_grsolvetjoin = {"gr_solvetjoin", "On", 0, CV_OnOff, NULL, 0, NULL, NULL, 0, 0, NULL};
static CV_PossibleValue_t CV_MD2[] = {{0, "Off"}, {1, "On"}, {2, "Old"}, {0, NULL}};
// console variables in development
consvar_t cv_grmd2 = {"gr_md2", "Off", 0, CV_MD2, NULL, 0, NULL, NULL, 0, 0, NULL};
static void CV_FogDensity_ONChange(void)
{
HWD.pfnSetSpecialState(HWD_SET_FOG_DENSITY, cv_grfogdensity.value);
}
static void CV_filtermode_ONChange(void)
{
HWD.pfnSetSpecialState(HWD_SET_TEXTUREFILTERMODE, cv_grfiltermode.value);
}
static void CV_anisotropic_ONChange(void)
{
HWD.pfnSetSpecialState(HWD_SET_TEXTUREANISOTROPICMODE, cv_granisotropicmode.value);
}
/*
* lookuptable for lightvalues
* calculated as follow:
* floatlight = (1.0-exp((light^3)*gamma)) / (1.0-exp(1.0*gamma));
* gamma=-0,2;-2,0;-4,0;-6,0;-8,0
* light = 0,0 .. 1,0
*/
static const float lighttable[5][256] =
{
{
0.00000f,0.00000f,0.00000f,0.00000f,0.00000f,0.00001f,0.00001f,0.00002f,0.00003f,0.00004f,
0.00006f,0.00008f,0.00010f,0.00013f,0.00017f,0.00020f,0.00025f,0.00030f,0.00035f,0.00041f,
0.00048f,0.00056f,0.00064f,0.00073f,0.00083f,0.00094f,0.00106f,0.00119f,0.00132f,0.00147f,
0.00163f,0.00180f,0.00198f,0.00217f,0.00237f,0.00259f,0.00281f,0.00305f,0.00331f,0.00358f,
0.00386f,0.00416f,0.00447f,0.00479f,0.00514f,0.00550f,0.00587f,0.00626f,0.00667f,0.00710f,
0.00754f,0.00800f,0.00848f,0.00898f,0.00950f,0.01003f,0.01059f,0.01117f,0.01177f,0.01239f,
0.01303f,0.01369f,0.01437f,0.01508f,0.01581f,0.01656f,0.01734f,0.01814f,0.01896f,0.01981f,
0.02069f,0.02159f,0.02251f,0.02346f,0.02444f,0.02544f,0.02647f,0.02753f,0.02862f,0.02973f,
0.03088f,0.03205f,0.03325f,0.03448f,0.03575f,0.03704f,0.03836f,0.03971f,0.04110f,0.04252f,
0.04396f,0.04545f,0.04696f,0.04851f,0.05009f,0.05171f,0.05336f,0.05504f,0.05676f,0.05852f,
0.06031f,0.06214f,0.06400f,0.06590f,0.06784f,0.06981f,0.07183f,0.07388f,0.07597f,0.07810f,
0.08027f,0.08248f,0.08473f,0.08702f,0.08935f,0.09172f,0.09414f,0.09659f,0.09909f,0.10163f,
0.10421f,0.10684f,0.10951f,0.11223f,0.11499f,0.11779f,0.12064f,0.12354f,0.12648f,0.12946f,
0.13250f,0.13558f,0.13871f,0.14188f,0.14511f,0.14838f,0.15170f,0.15507f,0.15850f,0.16197f,
0.16549f,0.16906f,0.17268f,0.17635f,0.18008f,0.18386f,0.18769f,0.19157f,0.19551f,0.19950f,
0.20354f,0.20764f,0.21179f,0.21600f,0.22026f,0.22458f,0.22896f,0.23339f,0.23788f,0.24242f,
0.24702f,0.25168f,0.25640f,0.26118f,0.26602f,0.27091f,0.27587f,0.28089f,0.28596f,0.29110f,
0.29630f,0.30156f,0.30688f,0.31226f,0.31771f,0.32322f,0.32879f,0.33443f,0.34013f,0.34589f,
0.35172f,0.35761f,0.36357f,0.36960f,0.37569f,0.38185f,0.38808f,0.39437f,0.40073f,0.40716f,
0.41366f,0.42022f,0.42686f,0.43356f,0.44034f,0.44718f,0.45410f,0.46108f,0.46814f,0.47527f,
0.48247f,0.48974f,0.49709f,0.50451f,0.51200f,0.51957f,0.52721f,0.53492f,0.54271f,0.55058f,
0.55852f,0.56654f,0.57463f,0.58280f,0.59105f,0.59937f,0.60777f,0.61625f,0.62481f,0.63345f,
0.64217f,0.65096f,0.65984f,0.66880f,0.67783f,0.68695f,0.69615f,0.70544f,0.71480f,0.72425f,
0.73378f,0.74339f,0.75308f,0.76286f,0.77273f,0.78268f,0.79271f,0.80283f,0.81304f,0.82333f,
0.83371f,0.84417f,0.85472f,0.86536f,0.87609f,0.88691f,0.89781f,0.90880f,0.91989f,0.93106f,
0.94232f,0.95368f,0.96512f,0.97665f,0.98828f,1.00000f
},
{
0.00000f,0.00000f,0.00000f,0.00000f,0.00001f,0.00002f,0.00003f,0.00005f,0.00007f,0.00010f,
0.00014f,0.00019f,0.00024f,0.00031f,0.00038f,0.00047f,0.00057f,0.00069f,0.00081f,0.00096f,
0.00112f,0.00129f,0.00148f,0.00170f,0.00193f,0.00218f,0.00245f,0.00274f,0.00306f,0.00340f,
0.00376f,0.00415f,0.00456f,0.00500f,0.00547f,0.00597f,0.00649f,0.00704f,0.00763f,0.00825f,
0.00889f,0.00957f,0.01029f,0.01104f,0.01182f,0.01264f,0.01350f,0.01439f,0.01532f,0.01630f,
0.01731f,0.01836f,0.01945f,0.02058f,0.02176f,0.02298f,0.02424f,0.02555f,0.02690f,0.02830f,
0.02974f,0.03123f,0.03277f,0.03436f,0.03600f,0.03768f,0.03942f,0.04120f,0.04304f,0.04493f,
0.04687f,0.04886f,0.05091f,0.05301f,0.05517f,0.05738f,0.05964f,0.06196f,0.06434f,0.06677f,
0.06926f,0.07181f,0.07441f,0.07707f,0.07979f,0.08257f,0.08541f,0.08831f,0.09126f,0.09428f,
0.09735f,0.10048f,0.10368f,0.10693f,0.11025f,0.11362f,0.11706f,0.12056f,0.12411f,0.12773f,
0.13141f,0.13515f,0.13895f,0.14281f,0.14673f,0.15072f,0.15476f,0.15886f,0.16303f,0.16725f,
0.17153f,0.17587f,0.18028f,0.18474f,0.18926f,0.19383f,0.19847f,0.20316f,0.20791f,0.21272f,
0.21759f,0.22251f,0.22748f,0.23251f,0.23760f,0.24274f,0.24793f,0.25318f,0.25848f,0.26383f,
0.26923f,0.27468f,0.28018f,0.28573f,0.29133f,0.29697f,0.30266f,0.30840f,0.31418f,0.32001f,
0.32588f,0.33179f,0.33774f,0.34374f,0.34977f,0.35585f,0.36196f,0.36810f,0.37428f,0.38050f,
0.38675f,0.39304f,0.39935f,0.40570f,0.41207f,0.41847f,0.42490f,0.43136f,0.43784f,0.44434f,
0.45087f,0.45741f,0.46398f,0.47057f,0.47717f,0.48379f,0.49042f,0.49707f,0.50373f,0.51041f,
0.51709f,0.52378f,0.53048f,0.53718f,0.54389f,0.55061f,0.55732f,0.56404f,0.57075f,0.57747f,
0.58418f,0.59089f,0.59759f,0.60429f,0.61097f,0.61765f,0.62432f,0.63098f,0.63762f,0.64425f,
0.65086f,0.65746f,0.66404f,0.67060f,0.67714f,0.68365f,0.69015f,0.69662f,0.70307f,0.70948f,
0.71588f,0.72224f,0.72857f,0.73488f,0.74115f,0.74739f,0.75359f,0.75976f,0.76589f,0.77199f,
0.77805f,0.78407f,0.79005f,0.79599f,0.80189f,0.80774f,0.81355f,0.81932f,0.82504f,0.83072f,
0.83635f,0.84194f,0.84747f,0.85296f,0.85840f,0.86378f,0.86912f,0.87441f,0.87964f,0.88482f,
0.88995f,0.89503f,0.90005f,0.90502f,0.90993f,0.91479f,0.91959f,0.92434f,0.92903f,0.93366f,
0.93824f,0.94276f,0.94723f,0.95163f,0.95598f,0.96027f,0.96451f,0.96868f,0.97280f,0.97686f,
0.98086f,0.98481f,0.98869f,0.99252f,0.99629f,1.00000f
},
{
0.00000f,0.00000f,0.00000f,0.00001f,0.00002f,0.00003f,0.00005f,0.00008f,0.00013f,0.00018f,
0.00025f,0.00033f,0.00042f,0.00054f,0.00067f,0.00083f,0.00101f,0.00121f,0.00143f,0.00168f,
0.00196f,0.00227f,0.00261f,0.00299f,0.00339f,0.00383f,0.00431f,0.00483f,0.00538f,0.00598f,
0.00661f,0.00729f,0.00802f,0.00879f,0.00961f,0.01048f,0.01140f,0.01237f,0.01340f,0.01447f,
0.01561f,0.01680f,0.01804f,0.01935f,0.02072f,0.02215f,0.02364f,0.02520f,0.02682f,0.02850f,
0.03026f,0.03208f,0.03397f,0.03594f,0.03797f,0.04007f,0.04225f,0.04451f,0.04684f,0.04924f,
0.05172f,0.05428f,0.05691f,0.05963f,0.06242f,0.06530f,0.06825f,0.07129f,0.07441f,0.07761f,
0.08089f,0.08426f,0.08771f,0.09125f,0.09487f,0.09857f,0.10236f,0.10623f,0.11019f,0.11423f,
0.11836f,0.12257f,0.12687f,0.13125f,0.13571f,0.14027f,0.14490f,0.14962f,0.15442f,0.15931f,
0.16427f,0.16932f,0.17445f,0.17966f,0.18496f,0.19033f,0.19578f,0.20130f,0.20691f,0.21259f,
0.21834f,0.22417f,0.23007f,0.23605f,0.24209f,0.24820f,0.25438f,0.26063f,0.26694f,0.27332f,
0.27976f,0.28626f,0.29282f,0.29944f,0.30611f,0.31284f,0.31962f,0.32646f,0.33334f,0.34027f,
0.34724f,0.35426f,0.36132f,0.36842f,0.37556f,0.38273f,0.38994f,0.39718f,0.40445f,0.41174f,
0.41907f,0.42641f,0.43378f,0.44116f,0.44856f,0.45598f,0.46340f,0.47084f,0.47828f,0.48573f,
0.49319f,0.50064f,0.50809f,0.51554f,0.52298f,0.53042f,0.53784f,0.54525f,0.55265f,0.56002f,
0.56738f,0.57472f,0.58203f,0.58932f,0.59658f,0.60381f,0.61101f,0.61817f,0.62529f,0.63238f,
0.63943f,0.64643f,0.65339f,0.66031f,0.66717f,0.67399f,0.68075f,0.68746f,0.69412f,0.70072f,
0.70726f,0.71375f,0.72017f,0.72653f,0.73282f,0.73905f,0.74522f,0.75131f,0.75734f,0.76330f,
0.76918f,0.77500f,0.78074f,0.78640f,0.79199f,0.79751f,0.80295f,0.80831f,0.81359f,0.81880f,
0.82393f,0.82898f,0.83394f,0.83883f,0.84364f,0.84836f,0.85301f,0.85758f,0.86206f,0.86646f,
0.87078f,0.87502f,0.87918f,0.88326f,0.88726f,0.89118f,0.89501f,0.89877f,0.90245f,0.90605f,
0.90957f,0.91301f,0.91638f,0.91966f,0.92288f,0.92601f,0.92908f,0.93206f,0.93498f,0.93782f,
0.94059f,0.94329f,0.94592f,0.94848f,0.95097f,0.95339f,0.95575f,0.95804f,0.96027f,0.96244f,
0.96454f,0.96658f,0.96856f,0.97049f,0.97235f,0.97416f,0.97591f,0.97760f,0.97924f,0.98083f,
0.98237f,0.98386f,0.98530f,0.98669f,0.98803f,0.98933f,0.99058f,0.99179f,0.99295f,0.99408f,
0.99516f,0.99620f,0.99721f,0.99817f,0.99910f,1.00000f
},
{
0.00000f,0.00000f,0.00000f,0.00001f,0.00002f,0.00005f,0.00008f,0.00012f,0.00019f,0.00026f,
0.00036f,0.00048f,0.00063f,0.00080f,0.00099f,0.00122f,0.00148f,0.00178f,0.00211f,0.00249f,
0.00290f,0.00335f,0.00386f,0.00440f,0.00500f,0.00565f,0.00636f,0.00711f,0.00793f,0.00881f,
0.00975f,0.01075f,0.01182f,0.01295f,0.01416f,0.01543f,0.01678f,0.01821f,0.01971f,0.02129f,
0.02295f,0.02469f,0.02652f,0.02843f,0.03043f,0.03252f,0.03469f,0.03696f,0.03933f,0.04178f,
0.04433f,0.04698f,0.04973f,0.05258f,0.05552f,0.05857f,0.06172f,0.06498f,0.06834f,0.07180f,
0.07537f,0.07905f,0.08283f,0.08672f,0.09072f,0.09483f,0.09905f,0.10337f,0.10781f,0.11236f,
0.11701f,0.12178f,0.12665f,0.13163f,0.13673f,0.14193f,0.14724f,0.15265f,0.15817f,0.16380f,
0.16954f,0.17538f,0.18132f,0.18737f,0.19351f,0.19976f,0.20610f,0.21255f,0.21908f,0.22572f,
0.23244f,0.23926f,0.24616f,0.25316f,0.26023f,0.26739f,0.27464f,0.28196f,0.28935f,0.29683f,
0.30437f,0.31198f,0.31966f,0.32740f,0.33521f,0.34307f,0.35099f,0.35896f,0.36699f,0.37506f,
0.38317f,0.39133f,0.39952f,0.40775f,0.41601f,0.42429f,0.43261f,0.44094f,0.44929f,0.45766f,
0.46604f,0.47443f,0.48283f,0.49122f,0.49962f,0.50801f,0.51639f,0.52476f,0.53312f,0.54146f,
0.54978f,0.55807f,0.56633f,0.57457f,0.58277f,0.59093f,0.59905f,0.60713f,0.61516f,0.62314f,
0.63107f,0.63895f,0.64676f,0.65452f,0.66221f,0.66984f,0.67739f,0.68488f,0.69229f,0.69963f,
0.70689f,0.71407f,0.72117f,0.72818f,0.73511f,0.74195f,0.74870f,0.75536f,0.76192f,0.76839f,
0.77477f,0.78105f,0.78723f,0.79331f,0.79930f,0.80518f,0.81096f,0.81664f,0.82221f,0.82768f,
0.83305f,0.83832f,0.84347f,0.84853f,0.85348f,0.85832f,0.86306f,0.86770f,0.87223f,0.87666f,
0.88098f,0.88521f,0.88933f,0.89334f,0.89726f,0.90108f,0.90480f,0.90842f,0.91194f,0.91537f,
0.91870f,0.92193f,0.92508f,0.92813f,0.93109f,0.93396f,0.93675f,0.93945f,0.94206f,0.94459f,
0.94704f,0.94941f,0.95169f,0.95391f,0.95604f,0.95810f,0.96009f,0.96201f,0.96386f,0.96564f,
0.96735f,0.96900f,0.97059f,0.97212f,0.97358f,0.97499f,0.97634f,0.97764f,0.97888f,0.98007f,
0.98122f,0.98231f,0.98336f,0.98436f,0.98531f,0.98623f,0.98710f,0.98793f,0.98873f,0.98949f,
0.99021f,0.99090f,0.99155f,0.99218f,0.99277f,0.99333f,0.99387f,0.99437f,0.99486f,0.99531f,
0.99575f,0.99616f,0.99654f,0.99691f,0.99726f,0.99759f,0.99790f,0.99819f,0.99847f,0.99873f,
0.99897f,0.99920f,0.99942f,0.99963f,0.99982f,1.00000f
},
{
0.00000f,0.00000f,0.00000f,0.00001f,0.00003f,0.00006f,0.00010f,0.00017f,0.00025f,0.00035f,
0.00048f,0.00064f,0.00083f,0.00106f,0.00132f,0.00163f,0.00197f,0.00237f,0.00281f,0.00330f,
0.00385f,0.00446f,0.00513f,0.00585f,0.00665f,0.00751f,0.00845f,0.00945f,0.01054f,0.01170f,
0.01295f,0.01428f,0.01569f,0.01719f,0.01879f,0.02048f,0.02227f,0.02415f,0.02614f,0.02822f,
0.03042f,0.03272f,0.03513f,0.03765f,0.04028f,0.04303f,0.04589f,0.04887f,0.05198f,0.05520f,
0.05855f,0.06202f,0.06561f,0.06933f,0.07318f,0.07716f,0.08127f,0.08550f,0.08987f,0.09437f,
0.09900f,0.10376f,0.10866f,0.11369f,0.11884f,0.12414f,0.12956f,0.13512f,0.14080f,0.14662f,
0.15257f,0.15865f,0.16485f,0.17118f,0.17764f,0.18423f,0.19093f,0.19776f,0.20471f,0.21177f,
0.21895f,0.22625f,0.23365f,0.24117f,0.24879f,0.25652f,0.26435f,0.27228f,0.28030f,0.28842f,
0.29662f,0.30492f,0.31329f,0.32175f,0.33028f,0.33889f,0.34756f,0.35630f,0.36510f,0.37396f,
0.38287f,0.39183f,0.40084f,0.40989f,0.41897f,0.42809f,0.43723f,0.44640f,0.45559f,0.46479f,
0.47401f,0.48323f,0.49245f,0.50167f,0.51088f,0.52008f,0.52927f,0.53843f,0.54757f,0.55668f,
0.56575f,0.57479f,0.58379f,0.59274f,0.60164f,0.61048f,0.61927f,0.62799f,0.63665f,0.64524f,
0.65376f,0.66220f,0.67056f,0.67883f,0.68702f,0.69511f,0.70312f,0.71103f,0.71884f,0.72655f,
0.73415f,0.74165f,0.74904f,0.75632f,0.76348f,0.77053f,0.77747f,0.78428f,0.79098f,0.79756f,
0.80401f,0.81035f,0.81655f,0.82264f,0.82859f,0.83443f,0.84013f,0.84571f,0.85117f,0.85649f,
0.86169f,0.86677f,0.87172f,0.87654f,0.88124f,0.88581f,0.89026f,0.89459f,0.89880f,0.90289f,
0.90686f,0.91071f,0.91445f,0.91807f,0.92157f,0.92497f,0.92826f,0.93143f,0.93450f,0.93747f,
0.94034f,0.94310f,0.94577f,0.94833f,0.95081f,0.95319f,0.95548f,0.95768f,0.95980f,0.96183f,
0.96378f,0.96565f,0.96744f,0.96916f,0.97081f,0.97238f,0.97388f,0.97532f,0.97669f,0.97801f,
0.97926f,0.98045f,0.98158f,0.98266f,0.98369f,0.98467f,0.98560f,0.98648f,0.98732f,0.98811f,
0.98886f,0.98958f,0.99025f,0.99089f,0.99149f,0.99206f,0.99260f,0.99311f,0.99359f,0.99404f,
0.99446f,0.99486f,0.99523f,0.99559f,0.99592f,0.99623f,0.99652f,0.99679f,0.99705f,0.99729f,
0.99751f,0.99772f,0.99792f,0.99810f,0.99827f,0.99843f,0.99857f,0.99871f,0.99884f,0.99896f,
0.99907f,0.99917f,0.99926f,0.99935f,0.99943f,0.99951f,0.99958f,0.99964f,0.99970f,0.99975f,
0.99980f,0.99985f,0.99989f,0.99993f,0.99997f,1.00000f
}
};
#define gld_CalcLightLevel(lightlevel) (lighttable[1][max(min((lightlevel),255),0)])
// ==========================================================================
// VIEW GLOBALS
// ==========================================================================
// Fineangles in the SCREENWIDTH wide window.
#define FIELDOFVIEW ANGLE_90
#define ABS(x) ((x) < 0 ? -(x) : (x))
static angle_t gr_clipangle;
// The viewangletox[viewangle + FINEANGLES/4] lookup
// maps the visible view angles to screen X coordinates,
// flattening the arc to a flat projection plane.
// There will be many angles mapped to the same X.
static INT32 gr_viewangletox[FINEANGLES/2];
// The xtoviewangleangle[] table maps a screen pixel
// to the lowest viewangle that maps back to x ranges
// from clipangle to -clipangle.
static angle_t gr_xtoviewangle[MAXVIDWIDTH+1];
// ==========================================================================
// GLOBALS
// ==========================================================================
// uncomment to remove the plane rendering
#define DOPLANES
//#define DOWALLS
// test of drawing sky by polygons like in software with visplane, unfortunately
// this doesn't work since we must have z for pixel and z for texture (not like now with z = oow)
//#define POLYSKY
// test change fov when looking up/down but bsp projection messup :(
//#define NOCRAPPYMLOOK
/// \note crappy
#define drawtextured true
// base values set at SetViewSize
static float gr_basecentery;
float gr_baseviewwindowy, gr_basewindowcentery;
float gr_viewwidth, gr_viewheight; // viewport clipping boundaries (screen coords)
float gr_viewwindowx;
static float gr_centerx, gr_centery;
static float gr_viewwindowy; // top left corner of view window
static float gr_windowcenterx; // center of view window, for projection
static float gr_windowcentery;
static float gr_pspritexscale, gr_pspriteyscale;
static seg_t *gr_curline;
static side_t *gr_sidedef;
static line_t *gr_linedef;
static sector_t *gr_frontsector;
static sector_t *gr_backsector;
// --------------------------------------------------------------------------
// STUFF FOR THE PROJECTION CODE
// --------------------------------------------------------------------------
FTransform atransform;
// duplicates of the main code, set after R_SetupFrame() passed them into sharedstruct,
// copied here for local use
static fixed_t dup_viewx, dup_viewy, dup_viewz;
static angle_t dup_viewangle;
static float gr_viewx, gr_viewy, gr_viewz;
static float gr_viewsin, gr_viewcos;
// Maybe not necessary with the new T&L code (needs to be checked!)
static float gr_viewludsin, gr_viewludcos; // look up down kik test
static float gr_fovlud;
// ==========================================================================
// LIGHT stuffs
// ==========================================================================
static UINT8 lightleveltonumlut[256];
// added to SRB2's sector lightlevel to make things a bit brighter (sprites/walls/planes)
FUNCMATH UINT8 LightLevelToLum(INT32 l)
{
return (UINT8)(255*gld_CalcLightLevel(l));
}
static inline void InitLumLut(void)
{
INT32 i, k = 0;
for (i = 0; i < 256; i++)
{
if (i > 128)
k += 2;
else
k = 1;
lightleveltonumlut[i] = (UINT8)(k);
}
}
//#define FOGFACTOR 300 //was 600 >> Covered by cv_grfogdensity
#define NORMALFOG 0x00000000
#define FADEFOG 0x19000000
#define CALCFOGDENSITY(x) ((float)((5220.0f*(1.0f/((x)/41.0f+1.0f)))-(5220.0f*(1.0f/(255.0f/41.0f+1.0f))))) // Approximate fog calculation based off of software walls
#define CALCFOGDENSITYFLOOR(x) ((float)((40227.0f*(1.0f/((x)/11.0f+1.0f)))-(40227.0f*(1.0f/(255.0f/11.0f+1.0f))))) // Approximate fog calculation based off of software floors
#define CALCLIGHT(x,y) ((float)(x)*((y)/255.0f))
UINT32 HWR_Lighting(INT32 light, UINT32 color, UINT32 fadecolor, boolean fogblockpoly, boolean plane)
{
RGBA_t realcolor, fogcolor, surfcolor;
INT32 alpha, fogalpha;
(void)fogblockpoly;
Negative Light Light no longer goes wrong when lightlevel of a sector is negative.
2014-03-24 17:11:45 +00:00
// Don't go out of bounds
if (light < 0)
light = 0;
else if (light > 255)
light = 255;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
realcolor.rgba = color;
fogcolor.rgba = fadecolor;
alpha = (realcolor.s.alpha*255)/25;
fogalpha = (fogcolor.s.alpha*255)/25;
if (cv_grfog.value && cv_grsoftwarefog.value) // Only do this when fog is on, software fog mode is on, and the poly is not from a fog block
{
// Modulate the colors by alpha.
realcolor.s.red = (UINT8)(CALCLIGHT(alpha,realcolor.s.red));
realcolor.s.green = (UINT8)(CALCLIGHT(alpha,realcolor.s.green));
realcolor.s.blue = (UINT8)(CALCLIGHT(alpha,realcolor.s.blue));
// Set the surface colors and further modulate the colors by light.
surfcolor.s.red = (UINT8)(CALCLIGHT((0xFF-alpha),255)+CALCLIGHT(realcolor.s.red,255));
surfcolor.s.green = (UINT8)(CALCLIGHT((0xFF-alpha),255)+CALCLIGHT(realcolor.s.green,255));
surfcolor.s.blue = (UINT8)(CALCLIGHT((0xFF-alpha),255)+CALCLIGHT(realcolor.s.blue,255));
surfcolor.s.alpha = 0xFF;
// Modulate the colors by alpha.
fogcolor.s.red = (UINT8)(CALCLIGHT(fogalpha,fogcolor.s.red));
fogcolor.s.green = (UINT8)(CALCLIGHT(fogalpha,fogcolor.s.green));
fogcolor.s.blue = (UINT8)(CALCLIGHT(fogalpha,fogcolor.s.blue));
}
else
{
// Modulate the colors by alpha.
realcolor.s.red = (UINT8)(CALCLIGHT(alpha,realcolor.s.red));
realcolor.s.green = (UINT8)(CALCLIGHT(alpha,realcolor.s.green));
realcolor.s.blue = (UINT8)(CALCLIGHT(alpha,realcolor.s.blue));
// Set the surface colors and further modulate the colors by light.
surfcolor.s.red = (UINT8)(CALCLIGHT((0xFF-alpha),light)+CALCLIGHT(realcolor.s.red,light));
surfcolor.s.green = (UINT8)(CALCLIGHT((0xFF-alpha),light)+CALCLIGHT(realcolor.s.green,light));
surfcolor.s.blue = (UINT8)(CALCLIGHT((0xFF-alpha),light)+CALCLIGHT(realcolor.s.blue,light));
// Modulate the colors by alpha.
fogcolor.s.red = (UINT8)(CALCLIGHT(fogalpha,fogcolor.s.red));
fogcolor.s.green = (UINT8)(CALCLIGHT(fogalpha,fogcolor.s.green));
fogcolor.s.blue = (UINT8)(CALCLIGHT(fogalpha,fogcolor.s.blue));
// Set the surface colors and further modulate the colors by light.
surfcolor.s.red = surfcolor.s.red+((UINT8)(CALCLIGHT((0xFF-fogalpha),(255-light))+CALCLIGHT(fogcolor.s.red,(255-light))));
surfcolor.s.green = surfcolor.s.green+((UINT8)(CALCLIGHT((0xFF-fogalpha),(255-light))+CALCLIGHT(fogcolor.s.green,(255-light))));
surfcolor.s.blue = surfcolor.s.blue+((UINT8)(CALCLIGHT((0xFF-fogalpha),(255-light))+CALCLIGHT(fogcolor.s.blue,(255-light))));
surfcolor.s.alpha = 0xFF;
}
if(cv_grfog.value)
{
if (cv_grsoftwarefog.value)
{
fogcolor.s.red = (UINT8)((CALCLIGHT(fogcolor.s.red,(255-light)))+(CALCLIGHT(realcolor.s.red,light)));
fogcolor.s.green = (UINT8)((CALCLIGHT(fogcolor.s.green,(255-light)))+(CALCLIGHT(realcolor.s.green,light)));
fogcolor.s.blue = (UINT8)((CALCLIGHT(fogcolor.s.blue,(255-light)))+(CALCLIGHT(realcolor.s.blue,light)));
// Set the fog options.
if (cv_grsoftwarefog.value == 1 && plane) // With floors, software draws them way darker for their distance
HWD.pfnSetSpecialState(HWD_SET_FOG_DENSITY, (INT32)(CALCFOGDENSITYFLOOR(light)));
else // everything else is drawn like walls
HWD.pfnSetSpecialState(HWD_SET_FOG_DENSITY, (INT32)(CALCFOGDENSITY(light)));
}
else
{
fogcolor.s.red = (UINT8)((CALCLIGHT(fogcolor.s.red,(255-light)))+(CALCLIGHT(realcolor.s.red,light)));
fogcolor.s.green = (UINT8)((CALCLIGHT(fogcolor.s.green,(255-light)))+(CALCLIGHT(realcolor.s.green,light)));
fogcolor.s.blue = (UINT8)((CALCLIGHT(fogcolor.s.blue,(255-light)))+(CALCLIGHT(realcolor.s.blue,light)));
fogalpha = (UINT8)((CALCLIGHT(fogalpha,(255-light)))+(CALCLIGHT(alpha,light)));
// Set the fog options.
light = (UINT8)(CALCLIGHT(light,(255-fogalpha)));
HWD.pfnSetSpecialState(HWD_SET_FOG_DENSITY, (INT32)(cv_grfogdensity.value-(cv_grfogdensity.value*(float)light/255.0f)));
}
HWD.pfnSetSpecialState(HWD_SET_FOG_COLOR, (fogcolor.s.red*0x10000)+(fogcolor.s.green*0x100)+fogcolor.s.blue);
HWD.pfnSetSpecialState(HWD_SET_FOG_MODE, 1);
}
return surfcolor.rgba;
}
static UINT8 HWR_FogBlockAlpha(INT32 light, UINT32 color, UINT32 fadecolor) // Let's see if this can work
{
RGBA_t realcolor, fogcolor, surfcolor;
INT32 alpha, fogalpha;
Negative Light Light no longer goes wrong when lightlevel of a sector is negative.
2014-03-24 17:11:45 +00:00
// Don't go out of bounds
if (light < 0)
light = 0;
else if (light > 255)
light = 255;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
realcolor.rgba = color;
fogcolor.rgba = fadecolor;
alpha = (realcolor.s.alpha*255)/25;
fogalpha = (fogcolor.s.alpha*255)/25;
// Fog blocks seem to get slightly more opaque with more opaque colourmap opacity, and much more opaque with darker brightness
surfcolor.s.alpha = (UINT8)(CALCLIGHT(light, ((0xFF-light)+alpha)/2)+CALCLIGHT(0xFF-light, ((light)+fogalpha)/2));
return surfcolor.s.alpha;
}
// ==========================================================================
// FLOOR/CEILING GENERATION FROM SUBSECTORS
// ==========================================================================
#ifdef DOPLANES
// -----------------+
// HWR_RenderPlane : Render a floor or ceiling convex polygon
// -----------------+
static void HWR_RenderPlane(sector_t *sector, extrasubsector_t *xsub, fixed_t fixedheight,
FBITFIELD PolyFlags, INT32 lightlevel, lumpnum_t lumpnum, sector_t *FOFsector, UINT8 alpha, boolean fogplane, extracolormap_t *planecolormap)
{
polyvertex_t * pv;
float height; //constant y for all points on the convex flat polygon
FOutVector *v3d;
INT32 nrPlaneVerts; //verts original define of convex flat polygon
INT32 i;
float flatxref,flatyref;
float fflatsize;
INT32 flatflag;
size_t len;
float scrollx = 0.0f, scrolly = 0.0f;
angle_t angle = 0;
FSurfaceInfo Surf;
fixed_t tempxsow, tempytow;
static FOutVector *planeVerts = NULL;
static UINT16 numAllocedPlaneVerts = 0;
// no convex poly were generated for this subsector
if (!xsub->planepoly)
return;
height = FIXED_TO_FLOAT(fixedheight);
pv = xsub->planepoly->pts;
nrPlaneVerts = xsub->planepoly->numpts;
if (nrPlaneVerts < 3) //not even a triangle ?
return;
if (nrPlaneVerts > UINT16_MAX) // FIXME: exceeds plVerts size
{
CONS_Debug(DBG_RENDER, "polygon size of %d exceeds max value of %d vertices\n", nrPlaneVerts, UINT16_MAX);
return;
}
// Allocate plane-vertex buffer if we need to
if (!planeVerts || nrPlaneVerts > numAllocedPlaneVerts)
{
numAllocedPlaneVerts = (UINT16)nrPlaneVerts;
Z_Free(planeVerts);
Z_Malloc(numAllocedPlaneVerts * sizeof (FOutVector), PU_LEVEL, &planeVerts);
}
len = W_LumpLength(lumpnum);
switch (len)
{
case 4194304: // 2048x2048 lump
fflatsize = 2048.0f;
flatflag = 2047;
break;
case 1048576: // 1024x1024 lump
fflatsize = 1024.0f;
flatflag = 1023;
break;
case 262144:// 512x512 lump
fflatsize = 512.0f;
flatflag = 511;
break;
case 65536: // 256x256 lump
fflatsize = 256.0f;
flatflag = 255;
break;
case 16384: // 128x128 lump
fflatsize = 128.0f;
flatflag = 127;
break;
case 1024: // 32x32 lump
fflatsize = 32.0f;
flatflag = 31;
break;
default: // 64x64 lump
fflatsize = 64.0f;
flatflag = 63;
break;
}
// reference point for flat texture coord for each vertex around the polygon
flatxref = (float)(((fixed_t)pv->x & (~flatflag)) / fflatsize);
flatyref = (float)(((fixed_t)pv->y & (~flatflag)) / fflatsize);
// transform
v3d = planeVerts;
if (FOFsector != NULL)
{
if (fixedheight == FOFsector->floorheight) // it's a floor
{
scrollx = FIXED_TO_FLOAT(FOFsector->floor_xoffs)/fflatsize;
scrolly = FIXED_TO_FLOAT(FOFsector->floor_yoffs)/fflatsize;
angle = FOFsector->floorpic_angle>>ANGLETOFINESHIFT;
}
else // it's a ceiling
{
scrollx = FIXED_TO_FLOAT(FOFsector->ceiling_xoffs)/fflatsize;
scrolly = FIXED_TO_FLOAT(FOFsector->ceiling_yoffs)/fflatsize;
angle = FOFsector->ceilingpic_angle>>ANGLETOFINESHIFT;
}
}
else if (gr_frontsector)
{
if (fixedheight < dup_viewz) // it's a floor
{
scrollx = FIXED_TO_FLOAT(gr_frontsector->floor_xoffs)/fflatsize;
scrolly = FIXED_TO_FLOAT(gr_frontsector->floor_yoffs)/fflatsize;
angle = gr_frontsector->floorpic_angle>>ANGLETOFINESHIFT;
}
else // it's a ceiling
{
scrollx = FIXED_TO_FLOAT(gr_frontsector->ceiling_xoffs)/fflatsize;
scrolly = FIXED_TO_FLOAT(gr_frontsector->ceiling_yoffs)/fflatsize;
angle = gr_frontsector->ceilingpic_angle>>ANGLETOFINESHIFT;
}
}
if (angle) // Only needs to be done if there's an altered angle
{
// This needs to be done so that it scrolls in a different direction after rotation like software
tempxsow = FLOAT_TO_FIXED(scrollx);
tempytow = FLOAT_TO_FIXED(scrolly);
scrollx = (FIXED_TO_FLOAT(FixedMul(tempxsow, FINECOSINE(angle)) - FixedMul(tempytow, FINESINE(angle))));
scrolly = (FIXED_TO_FLOAT(FixedMul(tempxsow, FINESINE(angle)) + FixedMul(tempytow, FINECOSINE(angle))));
// This needs to be done so everything aligns after rotation
// It would be done so that rotation is done, THEN the translation, but I couldn't get it to rotate AND scroll like software does
tempxsow = FLOAT_TO_FIXED(flatxref);
tempytow = FLOAT_TO_FIXED(flatyref);
flatxref = (FIXED_TO_FLOAT(FixedMul(tempxsow, FINECOSINE(angle)) - FixedMul(tempytow, FINESINE(angle))));
flatyref = (FIXED_TO_FLOAT(FixedMul(tempxsow, FINESINE(angle)) + FixedMul(tempytow, FINECOSINE(angle))));
}
for (i = 0; i < nrPlaneVerts; i++,v3d++,pv++)
{
// Hurdler: add scrolling texture on floor/ceiling
v3d->sow = (float)((pv->x / fflatsize) - flatxref + scrollx);
v3d->tow = (float)(flatyref - (pv->y / fflatsize) + scrolly);
//v3d->sow = (float)(pv->x / fflatsize);
//v3d->tow = (float)(pv->y / fflatsize);
// Need to rotate before translate
if (angle) // Only needs to be done if there's an altered angle
{
tempxsow = FLOAT_TO_FIXED(v3d->sow);
tempytow = FLOAT_TO_FIXED(v3d->tow);
v3d->sow = (FIXED_TO_FLOAT(FixedMul(tempxsow, FINECOSINE(angle)) - FixedMul(tempytow, FINESINE(angle))));
v3d->tow = (FIXED_TO_FLOAT(-FixedMul(tempxsow, FINESINE(angle)) - FixedMul(tempytow, FINECOSINE(angle))));
}
//v3d->sow = (float)(v3d->sow - flatxref + scrollx);
//v3d->tow = (float)(flatyref - v3d->tow + scrolly);
v3d->x = pv->x;
v3d->y = height;
v3d->z = pv->y;
#ifdef SLOPENESS
if (sector && sector->special == 65535)
{
size_t q;
for (q = 0; q < sector->linecount; q++)
{
if (v3d->x == sector->lines[q]->v1->x>>FRACBITS)
{
if (v3d->z == sector->lines[q]->v1->y>>FRACBITS)
{
v3d->y += sector->lines[q]->v1->z>>FRACBITS;
break;
}
}
}
}
#else
(void)sector;
#endif
}
// only useful for flat coloured triangles
//Surf.FlatColor = 0xff804020;
// use different light tables
// for horizontal / vertical / diagonal
// note: try to get the same visual feel as the original
Surf.FlatColor.s.red = Surf.FlatColor.s.green =
Surf.FlatColor.s.blue = LightLevelToLum(lightlevel); // Don't take from the frontsector, or the game will crash
#if 0 // no colormap test
// colormap test
if (gr_frontsector)
{
sector_t *psector = gr_frontsector;
if (psector->ffloors)
{
ffloor_t *caster = psector->lightlist[R_GetPlaneLight(psector, fixedheight, false)].caster;
psector = caster ? &sectors[caster->secnum] : psector;
if (caster)
{
lightlevel = psector->lightlevel;
Surf.FlatColor.s.red = Surf.FlatColor.s.green = Surf.FlatColor.s.blue = LightLevelToLum(lightlevel);
}
}
if (psector->extra_colormap)
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
Surf.FlatColor.rgba = HWR_Lighting(lightlevel,psector->extra_colormap->rgba,psector->extra_colormap->fadergba, false, true);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
else
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
Surf.FlatColor.rgba = HWR_Lighting(lightlevel,NORMALFOG,FADEFOG, false, true);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
}
else
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
Surf.FlatColor.rgba = HWR_Lighting(lightlevel,NORMALFOG,FADEFOG, false, true);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
#endif // NOPE
if (planecolormap)
{
if (fogplane)
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
Surf.FlatColor.rgba = HWR_Lighting(lightlevel, planecolormap->rgba, planecolormap->fadergba, true, false);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
else
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
Surf.FlatColor.rgba = HWR_Lighting(lightlevel, planecolormap->rgba, planecolormap->fadergba, false, true);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
}
else
{
if (fogplane)
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
Surf.FlatColor.rgba = HWR_Lighting(lightlevel, NORMALFOG, FADEFOG, true, false);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
else
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
Surf.FlatColor.rgba = HWR_Lighting(lightlevel, NORMALFOG, FADEFOG, false, true);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
}
if (PolyFlags & PF_Translucent)
{
Surf.FlatColor.s.alpha = (UINT8)alpha;
PolyFlags |= PF_Modulated|PF_Occlude|PF_Clip;
}
else
PolyFlags |= PF_Masked|PF_Modulated|PF_Clip;
HWD.pfnDrawPolygon(&Surf, planeVerts, nrPlaneVerts, PolyFlags);
#ifdef ALAM_LIGHTING
// add here code for dynamic lighting on planes
HWR_PlaneLighting(planeVerts, nrPlaneVerts);
#endif
}
#ifdef POLYSKY
// this don't draw anything it only update the z-buffer so there isn't problem with
// wall/things upper that sky (map12)
static void HWR_RenderSkyPlane(extrasubsector_t *xsub, fixed_t fixedheight)
{
polyvertex_t *pv;
float height; //constant y for all points on the convex flat polygon
FOutVector *v3d;
INT32 nrPlaneVerts; //verts original define of convex flat polygon
INT32 i;
// no convex poly were generated for this subsector
if (!xsub->planepoly)
return;
height = FIXED_TO_FLOAT(fixedheight);
pv = xsub->planepoly->pts;
nrPlaneVerts = xsub->planepoly->numpts;
if (nrPlaneVerts < 3) // not even a triangle?
return;
if (nrPlaneVerts > MAXPLANEVERTICES) // FIXME: exceeds plVerts size
{
CONS_Debug(DBG_RENDER, "polygon size of %d exceeds max value of %d vertices\n", nrPlaneVerts, MAXPLANEVERTICES);
return;
}
// transform
v3d = planeVerts;
for (i = 0; i < nrPlaneVerts; i++,v3d++,pv++)
{
v3d->sow = 0.0f;
v3d->tow = 0.0f;
v3d->x = pv->x;
v3d->y = height;
v3d->z = pv->y;
}
HWD.pfnDrawPolygon(NULL, planeVerts, nrPlaneVerts,
PF_Clip|PF_Invisible|PF_NoTexture|PF_Occlude);
}
#endif //polysky
#endif //doplanes
/*
wallVerts order is :
3--2
| /|
|/ |
0--1
*/
#ifdef WALLSPLATS
static void HWR_DrawSegsSplats(FSurfaceInfo * pSurf)
{
FOutVector trVerts[4], *wv;
wallVert3D wallVerts[4];
wallVert3D *pwallVerts;
wallsplat_t *splat;
GLPatch_t *gpatch;
fixed_t i;
FSurfaceInfo pSurf2;
// seg bbox
fixed_t segbbox[4];
M_ClearBox(segbbox);
M_AddToBox(segbbox,
FLOAT_TO_FIXED(((polyvertex_t *)gr_curline->v1)->x),
FLOAT_TO_FIXED(((polyvertex_t *)gr_curline->v1)->y));
M_AddToBox(segbbox,
FLOAT_TO_FIXED(((polyvertex_t *)gr_curline->v2)->x),
FLOAT_TO_FIXED(((polyvertex_t *)gr_curline->v2)->y));
splat = (wallsplat_t *)gr_curline->linedef->splats;
for (; splat; splat = splat->next)
{
//BP: don't draw splat extern to this seg
// this is quick fix best is explain in logboris.txt at 12-4-2000
if (!M_PointInBox(segbbox,splat->v1.x,splat->v1.y) && !M_PointInBox(segbbox,splat->v2.x,splat->v2.y))
continue;
gpatch = W_CachePatchNum(splat->patch, PU_CACHE);
HWR_GetPatch(gpatch);
wallVerts[0].x = wallVerts[3].x = FIXED_TO_FLOAT(splat->v1.x);
wallVerts[0].z = wallVerts[3].z = FIXED_TO_FLOAT(splat->v1.y);
wallVerts[2].x = wallVerts[1].x = FIXED_TO_FLOAT(splat->v2.x);
wallVerts[2].z = wallVerts[1].z = FIXED_TO_FLOAT(splat->v2.y);
i = splat->top;
if (splat->yoffset)
i += *splat->yoffset;
wallVerts[2].y = wallVerts[3].y = FIXED_TO_FLOAT(i)+(gpatch->height>>1);
wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(i)-(gpatch->height>>1);
wallVerts[3].s = wallVerts[3].t = wallVerts[2].s = wallVerts[0].t = 0.0f;
wallVerts[1].s = wallVerts[1].t = wallVerts[2].t = wallVerts[0].s = 1.0f;
// transform
wv = trVerts;
pwallVerts = wallVerts;
for (i = 0; i < 4; i++,wv++,pwallVerts++)
{
wv->x = pwallVerts->x;
wv->z = pwallVerts->z;
wv->y = pwallVerts->y;
// Kalaron: TOW and SOW needed to be switched
wv->sow = pwallVerts->t;
wv->tow = pwallVerts->s;
}
M_Memcpy(&pSurf2,pSurf,sizeof (FSurfaceInfo));
switch (splat->flags & SPLATDRAWMODE_MASK)
{
case SPLATDRAWMODE_OPAQUE :
pSurf2.FlatColor.s.alpha = 0xff;
i = PF_Translucent;
break;
case SPLATDRAWMODE_TRANS :
pSurf2.FlatColor.s.alpha = 128;
i = PF_Translucent;
break;
case SPLATDRAWMODE_SHADE :
pSurf2.FlatColor.s.alpha = 0xff;
i = PF_Substractive;
break;
}
HWD.pfnDrawPolygon(&pSurf2, trVerts, 4, i|PF_Modulated|PF_Clip|PF_Decal);
}
}
#endif
// ==========================================================================
// WALL GENERATION FROM SUBSECTOR SEGS
// ==========================================================================
FBITFIELD HWR_TranstableToAlpha(INT32 transtablenum, FSurfaceInfo *pSurf)
{
switch (transtablenum)
{
case tr_trans10 : pSurf->FlatColor.s.alpha = 0xe6;return PF_Translucent;
case tr_trans20 : pSurf->FlatColor.s.alpha = 0xcc;return PF_Translucent;
case tr_trans30 : pSurf->FlatColor.s.alpha = 0xb3;return PF_Translucent;
case tr_trans40 : pSurf->FlatColor.s.alpha = 0x99;return PF_Translucent;
case tr_trans50 : pSurf->FlatColor.s.alpha = 0x80;return PF_Translucent;
case tr_trans60 : pSurf->FlatColor.s.alpha = 0x66;return PF_Translucent;
case tr_trans70 : pSurf->FlatColor.s.alpha = 0x4c;return PF_Translucent;
case tr_trans80 : pSurf->FlatColor.s.alpha = 0x33;return PF_Translucent;
case tr_trans90 : pSurf->FlatColor.s.alpha = 0x19;return PF_Translucent;
}
return PF_Translucent;
}
// v1,v2 : the start & end vertices along the original wall segment, that may have been
// clipped so that only a visible portion of the wall seg is drawn.
// floorheight, ceilingheight : depend on wall upper/lower/middle, comes from the sectors.
static void HWR_AddTransparentWall(wallVert3D *wallVerts, FSurfaceInfo * pSurf, INT32 texnum, FBITFIELD blend, boolean fogwall, INT32 lightlevel, extracolormap_t *wallcolormap);
// -----------------+
// HWR_ProjectWall :
// -----------------+
/*
wallVerts order is :
3--2
| /|
|/ |
0--1
*/
static void HWR_ProjectWall(wallVert3D * wallVerts,
FSurfaceInfo * pSurf,
FBITFIELD blendmode, INT32 lightlevel, extracolormap_t *wallcolormap)
{
FOutVector trVerts[4];
FOutVector *wv;
// transform
wv = trVerts;
// it sounds really stupid to do this conversion with the new T&L code
// we should directly put the right information in the right structure
// wallVerts3D seems ok, doesn't need FOutVector
// also remove the light copy
// More messy to unwrap, but it's also quicker, uses less memory.
wv->sow = wallVerts->s;
wv->tow = wallVerts->t;
wv->x = wallVerts->x;
wv->y = wallVerts->y;
wv->z = wallVerts->z;
wv++; wallVerts++;
wv->sow = wallVerts->s;
wv->tow = wallVerts->t;
wv->x = wallVerts->x;
wv->y = wallVerts->y;
wv->z = wallVerts->z;
wv++; wallVerts++;
wv->sow = wallVerts->s;
wv->tow = wallVerts->t;
wv->x = wallVerts->x;
wv->y = wallVerts->y;
wv->z = wallVerts->z;
wv++; wallVerts++;
wv->sow = wallVerts->s;
wv->tow = wallVerts->t;
wv->x = wallVerts->x;
wv->y = wallVerts->y;
wv->z = wallVerts->z;
if (wallcolormap)
{
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
pSurf->FlatColor.rgba = HWR_Lighting(lightlevel, wallcolormap->rgba, wallcolormap->fadergba, false, false);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
}
else
{
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
pSurf->FlatColor.rgba = HWR_Lighting(lightlevel, NORMALFOG, FADEFOG, false, false);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
}
HWD.pfnDrawPolygon(pSurf, trVerts, 4, blendmode|PF_Modulated|PF_Occlude|PF_Clip);
#ifdef WALLSPLATS
if (gr_curline->linedef->splats && cv_splats.value)
HWR_DrawSegsSplats(pSurf);
#endif
#ifdef ALAM_LIGHTING
//Hurdler: TDOD: do static lighting using gr_curline->lm
HWR_WallLighting(trVerts);
//Hurdler: for better dynamic light in dark area, we should draw the light first
// and then the wall all that with the right blending func
//HWD.pfnDrawPolygon(pSurf, trVerts, 4, PF_Additive|PF_Modulated|PF_Occlude|PF_Clip);
#endif
}
// ==========================================================================
// BSP, CULL, ETC..
// ==========================================================================
// return the frac from the interception of the clipping line
// (in fact a clipping plane that has a constant, so can clip with simple 2d)
// with the wall segment
//
static float HWR_ClipViewSegment(INT32 x, polyvertex_t *v1, polyvertex_t *v2)
{
float num, den;
float v1x, v1y, v1dx, v1dy, v2dx, v2dy;
angle_t pclipangle = gr_xtoviewangle[x];
// a segment of a polygon
v1x = v1->x;
v1y = v1->y;
v1dx = (v2->x - v1->x);
v1dy = (v2->y - v1->y);
// the clipping line
pclipangle = pclipangle + dup_viewangle; //back to normal angle (non-relative)
v2dx = FIXED_TO_FLOAT(FINECOSINE(pclipangle>>ANGLETOFINESHIFT));
v2dy = FIXED_TO_FLOAT(FINESINE(pclipangle>>ANGLETOFINESHIFT));
den = v2dy*v1dx - v2dx*v1dy;
if (den == 0)
return -1; // parallel
// calc the frac along the polygon segment,
//num = (v2x - v1x)*v2dy + (v1y - v2y)*v2dx;
//num = -v1x * v2dy + v1y * v2dx;
num = (gr_viewx - v1x)*v2dy + (v1y - gr_viewy)*v2dx;
return num / den;
}
//
// HWR_SplitWall
//
static void HWR_SplitWall(sector_t *sector, wallVert3D *wallVerts, INT32 texnum, FSurfaceInfo* Surf, UINT32 cutflag)
{
/* SoM: split up and light walls according to the
lightlist. This may also include leaving out parts
of the wall that can't be seen */
GLTexture_t * glTex;
float realtop, realbot, top, bot;
float pegt, pegb, pegmul;
float height = 0.0f, bheight = 0.0f;
INT32 solid, i;
lightlist_t * list = sector->lightlist;
const UINT8 alpha = Surf->FlatColor.s.alpha;
FUINT lightnum;
extracolormap_t *colormap;
realtop = top = wallVerts[2].y;
realbot = bot = wallVerts[0].y;
pegt = wallVerts[2].t;
pegb = wallVerts[0].t;
pegmul = (pegb - pegt) / (top - bot);
for (i = 1; i < sector->numlights; i++)
{
if (top < realbot)
return;
//Hurdler: fix a crashing bug, but is it correct?
// if (!list[i].caster)
// continue;
solid = false;
if (list[i].caster)
{
if (sector->lightlist[i].caster->flags & FF_SOLID && !(cutflag & FF_EXTRA))
solid = true;
else if (sector->lightlist[i].caster->flags & FF_CUTEXTRA && cutflag & FF_EXTRA)
{
if (sector->lightlist[i].caster->flags & FF_EXTRA)
{
if (sector->lightlist[i].caster->flags == cutflag) // Only merge with your own types
solid = true;
}
else
solid = true;
}
else
solid = false;
}
else
solid = false;
if (cutflag == FF_CUTSOLIDS) // These are regular walls sent in from StoreWallRange, they shouldn't be cut from this
solid = false;
if (cutflag & FF_SOLID) // these weren't being cut before anyway, although they probably should be in the right conditions
solid = false;
height = FIXED_TO_FLOAT(list[i].height);
if (solid)
bheight = FIXED_TO_FLOAT(*list[i].caster->bottomheight);
if (height >= top)
{
if (solid && top > bheight)
top = bheight;
continue;
}
//Found a break;
bot = height;
if (bot < realbot)
bot = realbot;
// colormap test
if (list[i-1].caster)
{
lightnum = *list[i-1].lightlevel;
colormap = list[i-1].extra_colormap;
}
else
{
lightnum = sector->lightlevel;
colormap = sector->extra_colormap;
}
Surf->FlatColor.s.alpha = alpha;
wallVerts[3].t = wallVerts[2].t = pegt + ((realtop - top) * pegmul);
wallVerts[0].t = wallVerts[1].t = pegt + ((realtop - bot) * pegmul);
// set top/bottom coords
wallVerts[2].y = wallVerts[3].y = top;
wallVerts[0].y = wallVerts[1].y = bot;
glTex = HWR_GetTexture(texnum);
if (cutflag & FF_TRANSLUCENT)
HWR_AddTransparentWall(wallVerts, Surf, texnum, PF_Translucent, false, lightnum, colormap);
else if (glTex->mipmap.flags & TF_TRANSPARENT)
HWR_AddTransparentWall(wallVerts, Surf, texnum, PF_Environment, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, Surf, PF_Masked, lightnum, colormap);
if (solid)
top = bheight;
else
top = height;
}
bot = realbot;
if (top <= realbot)
return;
if (list[i-1].caster)
{
lightnum = *list[i-1].lightlevel;
colormap = list[i-1].extra_colormap;
}
else
{
lightnum = sector->lightlevel;
colormap = sector->extra_colormap;
}
Surf->FlatColor.s.alpha = alpha;
wallVerts[3].t = wallVerts[2].t = pegt + ((realtop - top) * pegmul);
wallVerts[0].t = wallVerts[1].t = pegt + ((realtop - bot) * pegmul);
// set top/bottom coords
wallVerts[2].y = wallVerts[3].y = top;
wallVerts[0].y = wallVerts[1].y = bot;
glTex = HWR_GetTexture(texnum);
if (cutflag & FF_TRANSLUCENT)
HWR_AddTransparentWall(wallVerts, Surf, texnum, PF_Translucent, false, lightnum, colormap);
else if (glTex->mipmap.flags & TF_TRANSPARENT)
HWR_AddTransparentWall(wallVerts, Surf, texnum, PF_Environment, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, Surf, PF_Masked, lightnum, colormap);
}
//
// HWR_SplitFog
// Exclusively for fog
//
static void HWR_SplitFog(sector_t *sector, wallVert3D *wallVerts, FSurfaceInfo* Surf, UINT32 cutflag, FUINT lightnum, extracolormap_t *colormap)
{
/* SoM: split up and light walls according to the
lightlist. This may also include leaving out parts
of the wall that can't be seen */
float realtop, realbot, top, bot;
float pegt, pegb, pegmul;
float height = 0.0f, bheight = 0.0f;
INT32 solid, i;
lightlist_t * list = sector->lightlist;
const UINT8 alpha = Surf->FlatColor.s.alpha;
realtop = top = wallVerts[2].y;
realbot = bot = wallVerts[0].y;
pegt = wallVerts[2].t;
pegb = wallVerts[0].t;
pegmul = (pegb - pegt) / (top - bot);
for (i = 1; i < sector->numlights; i++)
{
if (top < realbot)
return;
//Hurdler: fix a crashing bug, but is it correct?
// if (!list[i].caster)
// continue;
solid = false;
if (list[i].caster)
{
MD2 & Patch drawing fixes MD2's can be translucent again. MD2's can use sprites instead of another random texture if they have no texture. Patches are drawn in the correct place on non aspect correct resolutions. Cropped Patches are drawn.
2014-03-19 23:10:37 +00:00
if (sector->lightlist[i].caster->flags & FF_FOG && cutflag & FF_FOG) // Only fog cuts fog
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
{
if (sector->lightlist[i].caster->flags & FF_EXTRA)
{
MD2 & Patch drawing fixes MD2's can be translucent again. MD2's can use sprites instead of another random texture if they have no texture. Patches are drawn in the correct place on non aspect correct resolutions. Cropped Patches are drawn.
2014-03-19 23:10:37 +00:00
if (sector->lightlist[i].caster->flags == cutflag) // only cut by the same
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
solid = true;
}
else
solid = true;
}
}
height = FIXED_TO_FLOAT(list[i].height);
if (solid)
bheight = FIXED_TO_FLOAT(*list[i].caster->bottomheight);
if (height >= top)
{
if (solid && top > bheight)
top = bheight;
continue;
}
//Found a break;
bot = height;
if (bot < realbot)
bot = realbot;
{
Surf->FlatColor.s.alpha = alpha;
}
wallVerts[3].t = wallVerts[2].t = pegt + ((realtop - top) * pegmul);
wallVerts[0].t = wallVerts[1].t = pegt + ((realtop - bot) * pegmul);
// set top/bottom coords
wallVerts[2].y = wallVerts[3].y = top;
wallVerts[0].y = wallVerts[1].y = bot;
if (!solid) // Don't draw it if there's more fog behind it
HWR_AddTransparentWall(wallVerts, Surf, 0, PF_Translucent|PF_NoTexture, true, lightnum, colormap);
top = height;
}
bot = realbot;
if (top <= realbot)
return;
{
Surf->FlatColor.s.alpha = alpha;
}
wallVerts[3].t = wallVerts[2].t = pegt + ((realtop - top) * pegmul);
wallVerts[0].t = wallVerts[1].t = pegt + ((realtop - bot) * pegmul);
// set top/bottom coords
wallVerts[2].y = wallVerts[3].y = top;
wallVerts[0].y = wallVerts[1].y = bot;
HWR_AddTransparentWall(wallVerts, Surf, 0, PF_Translucent|PF_NoTexture, true, lightnum, colormap);
}
//
// HWR_StoreWallRange
// A portion or all of a wall segment will be drawn, from startfrac to endfrac,
// where 0 is the start of the segment, 1 the end of the segment
// Anything between means the wall segment has been clipped with solidsegs,
// reducing wall overdraw to a minimum
//
static void HWR_StoreWallRange(double startfrac, double endfrac)
{
wallVert3D wallVerts[4];
v2d_t vs, ve; // start, end vertices of 2d line (view from above)
fixed_t worldtop, worldbottom;
fixed_t worldhigh = 0, worldlow = 0;
GLTexture_t *grTex = NULL;
float cliplow = 0.0f, cliphigh = 0.0f;
INT32 gr_midtexture;
fixed_t h, l; // 3D sides and 2s middle textures
FUINT lightnum = 0; // shut up compiler
extracolormap_t *colormap;
FSurfaceInfo Surf;
if (startfrac > endfrac)
return;
gr_sidedef = gr_curline->sidedef;
gr_linedef = gr_curline->linedef;
if (gr_frontsector->heightsec != -1)
{
worldtop = sectors[gr_frontsector->heightsec].ceilingheight;
worldbottom = sectors[gr_frontsector->heightsec].floorheight;
}
else
{
worldtop = gr_frontsector->ceilingheight;
worldbottom = gr_frontsector->floorheight;
}
vs.x = ((polyvertex_t *)gr_curline->v1)->x;
vs.y = ((polyvertex_t *)gr_curline->v1)->y;
ve.x = ((polyvertex_t *)gr_curline->v2)->x;
ve.y = ((polyvertex_t *)gr_curline->v2)->y;
// remember vertices ordering
// 3--2
// | /|
// |/ |
// 0--1
// make a wall polygon (with 2 triangles), using the floor/ceiling heights,
// and the 2d map coords of start/end vertices
wallVerts[0].x = wallVerts[3].x = vs.x;
wallVerts[0].z = wallVerts[3].z = vs.y;
wallVerts[2].x = wallVerts[1].x = ve.x;
wallVerts[2].z = wallVerts[1].z = ve.y;
wallVerts[0].w = wallVerts[1].w = wallVerts[2].w = wallVerts[3].w = 1.0f;
if (drawtextured)
{
// x offset the texture
fixed_t texturehpeg = gr_sidedef->textureoffset + gr_curline->offset;
// clip texture s start/end coords with solidsegs
if (startfrac > 0.0f && startfrac < 1.0f)
cliplow = (float)(texturehpeg + (gr_curline->flength*FRACUNIT) * startfrac);
else
cliplow = (float)texturehpeg;
if (endfrac > 0.0f && endfrac < 1.0f)
cliphigh = (float)(texturehpeg + (gr_curline->flength*FRACUNIT) * endfrac);
else
cliphigh = (float)(texturehpeg + (gr_curline->flength*FRACUNIT));
}
lightnum = gr_frontsector->lightlevel;
colormap = gr_frontsector->extra_colormap;
if (gr_frontsector)
{
Surf.FlatColor.s.alpha = 255;
}
if (gr_backsector)
{
// two sided line
if (gr_backsector->heightsec != -1)
{
worldhigh = sectors[gr_backsector->heightsec].ceilingheight;
worldlow = sectors[gr_backsector->heightsec].floorheight;
}
else
{
worldhigh = gr_backsector->ceilingheight;
worldlow = gr_backsector->floorheight;
}
// hack to allow height changes in outdoor areas
// This is what gets rid of the upper textures if there should be sky
if (gr_frontsector->ceilingpic == skyflatnum &&
gr_backsector->ceilingpic == skyflatnum)
{
worldtop = worldhigh;
}
// check TOP TEXTURE
if (worldhigh < worldtop && texturetranslation[gr_sidedef->toptexture]
#ifdef POLYOBJECTS // polyobjects don't have top textures, silly.
&& !gr_curline->polyseg
#endif
)
{
if (drawtextured)
{
fixed_t texturevpegtop; // top
grTex = HWR_GetTexture(texturetranslation[gr_sidedef->toptexture]);
// PEGGING
if (gr_linedef->flags & ML_DONTPEGTOP)
texturevpegtop = 0;
else
texturevpegtop = worldhigh + textureheight[gr_sidedef->toptexture] - worldtop;
texturevpegtop += gr_sidedef->rowoffset;
wallVerts[3].t = wallVerts[2].t = texturevpegtop * grTex->scaleY;
wallVerts[0].t = wallVerts[1].t = (texturevpegtop + worldtop - worldhigh) * grTex->scaleY;
wallVerts[0].s = wallVerts[3].s = cliplow * grTex->scaleX;
wallVerts[2].s = wallVerts[1].s = cliphigh * grTex->scaleX;
}
// set top/bottom coords
wallVerts[2].y = wallVerts[3].y = FIXED_TO_FLOAT(worldtop);
wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(worldhigh);
if (gr_frontsector->numlights)
HWR_SplitWall(gr_frontsector, wallVerts, texturetranslation[gr_sidedef->toptexture], &Surf, FF_CUTSOLIDS);
else if (grTex->mipmap.flags & TF_TRANSPARENT)
HWR_AddTransparentWall(wallVerts, &Surf, texturetranslation[gr_sidedef->toptexture], PF_Environment, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, &Surf, PF_Masked, lightnum, colormap);
}
// check BOTTOM TEXTURE
if (worldlow > worldbottom && texturetranslation[gr_sidedef->bottomtexture]
#ifdef POLYOBJECTS // polyobjects don't have bottom textures, silly.
&& !gr_curline->polyseg
#endif
) //only if VISIBLE!!!
{
if (drawtextured)
{
fixed_t texturevpegbottom = 0; // bottom
grTex = HWR_GetTexture(texturetranslation[gr_sidedef->bottomtexture]);
// PEGGING
if (gr_linedef->flags & ML_DONTPEGBOTTOM)
texturevpegbottom = worldtop - worldlow;
else
texturevpegbottom = 0;
texturevpegbottom += gr_sidedef->rowoffset;
wallVerts[3].t = wallVerts[2].t = texturevpegbottom * grTex->scaleY;
wallVerts[0].t = wallVerts[1].t = (texturevpegbottom + worldlow - worldbottom) * grTex->scaleY;
wallVerts[0].s = wallVerts[3].s = cliplow * grTex->scaleX;
wallVerts[2].s = wallVerts[1].s = cliphigh * grTex->scaleX;
}
// set top/bottom coords
wallVerts[2].y = wallVerts[3].y = FIXED_TO_FLOAT(worldlow);
wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(worldbottom);
if (gr_frontsector->numlights)
HWR_SplitWall(gr_frontsector, wallVerts, texturetranslation[gr_sidedef->bottomtexture], &Surf, FF_CUTSOLIDS);
else if (grTex->mipmap.flags & TF_TRANSPARENT)
HWR_AddTransparentWall(wallVerts, &Surf, texturetranslation[gr_sidedef->bottomtexture], PF_Environment, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, &Surf, PF_Masked, lightnum, colormap);
}
gr_midtexture = texturetranslation[gr_sidedef->midtexture];
if (gr_midtexture)
{
FBITFIELD blendmode;
sector_t *front, *back;
fixed_t popentop, popenbottom, polytop, polybottom, lowcut, highcut;
fixed_t texturevpeg = 0;
INT32 repeats;
if (gr_linedef->frontsector->heightsec != -1)
front = &sectors[gr_linedef->frontsector->heightsec];
else
front = gr_linedef->frontsector;
if (gr_linedef->backsector->heightsec != -1)
back = &sectors[gr_linedef->backsector->heightsec];
else
back = gr_linedef->backsector;
if (gr_sidedef->repeatcnt)
repeats = 1 + gr_sidedef->repeatcnt;
else if (gr_linedef->flags & ML_EFFECT5)
{
fixed_t high, low;
if (front->ceilingheight > back->ceilingheight)
high = back->ceilingheight;
else
high = front->ceilingheight;
if (front->floorheight > back->floorheight)
low = front->floorheight;
else
low = back->floorheight;
repeats = (high - low)/textureheight[gr_sidedef->midtexture];
if ((high-low)%textureheight[gr_sidedef->midtexture])
repeats++; // tile an extra time to fill the gap -- Monster Iestyn
}
else
repeats = 1;
// SoM: a little note: This code re-arranging will
// fix the bug in Nimrod map02. popentop and popenbottom
// record the limits the texture can be displayed in.
// polytop and polybottom, are the ideal (i.e. unclipped)
// heights of the polygon, and h & l, are the final (clipped)
// poly coords.
#ifdef POLYOBJECTS
// NOTE: With polyobjects, whenever you need to check the properties of the polyobject sector it belongs to,
// you must use the linedef's backsector to be correct
// From CB
if (gr_curline->polyseg)
{
popentop = back->ceilingheight;
popenbottom = back->floorheight;
}
#endif
else
{
popentop = front->ceilingheight < back->ceilingheight ? front->ceilingheight : back->ceilingheight;
popenbottom = front->floorheight > back->floorheight ? front->floorheight : back->floorheight;
}
if (gr_linedef->flags & ML_DONTPEGBOTTOM)
{
polybottom = popenbottom + gr_sidedef->rowoffset;
polytop = polybottom + textureheight[gr_midtexture]*repeats;
}
else
{
polytop = popentop + gr_sidedef->rowoffset;
polybottom = polytop - textureheight[gr_midtexture]*repeats;
}
// CB
#ifdef POLYOBJECTS
// NOTE: With polyobjects, whenever you need to check the properties of the polyobject sector it belongs to,
// you must use the linedef's backsector to be correct
if (gr_curline->polyseg)
{
lowcut = polybottom;
highcut = polytop;
}
#endif
else
{
// The cut-off values of a linedef can always be constant, since every line has an absoulute front and or back sector
lowcut = front->floorheight > back->floorheight ? front->floorheight : back->floorheight;
highcut = front->ceilingheight < back->ceilingheight ? front->ceilingheight : back->ceilingheight;
}
h = polytop > highcut ? highcut : polytop;
l = polybottom < lowcut ? lowcut : polybottom;
if (drawtextured)
{
// PEGGING
if (gr_linedef->flags & ML_DONTPEGBOTTOM)
texturevpeg = textureheight[gr_sidedef->midtexture]*repeats - h + polybottom;
else
texturevpeg = polytop - h;
grTex = HWR_GetTexture(gr_midtexture);
wallVerts[3].t = wallVerts[2].t = texturevpeg * grTex->scaleY;
wallVerts[0].t = wallVerts[1].t = (h - l + texturevpeg) * grTex->scaleY;
wallVerts[0].s = wallVerts[3].s = cliplow * grTex->scaleX;
wallVerts[2].s = wallVerts[1].s = cliphigh * grTex->scaleX;
}
// set top/bottom coords
// Take the texture peg into account, rather than changing the offsets past
// where the polygon might not be.
wallVerts[2].y = wallVerts[3].y = FIXED_TO_FLOAT(h);
wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(l);
// set alpha for transparent walls (new boom and legacy linedef types)
// ooops ! this do not work at all because render order we should render it in backtofront order
switch (gr_linedef->special)
{
case 900:
blendmode = HWR_TranstableToAlpha(tr_trans10, &Surf);
break;
case 901:
blendmode = HWR_TranstableToAlpha(tr_trans20, &Surf);
break;
case 902:
blendmode = HWR_TranstableToAlpha(tr_trans30, &Surf);
break;
case 903:
blendmode = HWR_TranstableToAlpha(tr_trans40, &Surf);
break;
case 904:
blendmode = HWR_TranstableToAlpha(tr_trans50, &Surf);
break;
case 905:
blendmode = HWR_TranstableToAlpha(tr_trans60, &Surf);
break;
case 906:
blendmode = HWR_TranstableToAlpha(tr_trans70, &Surf);
break;
case 907:
blendmode = HWR_TranstableToAlpha(tr_trans80, &Surf);
break;
case 908:
blendmode = HWR_TranstableToAlpha(tr_trans90, &Surf);
break;
// Translucent
case 102:
case 121:
case 123:
case 124:
case 125:
case 141:
case 142:
case 144:
case 145:
case 174:
case 175:
case 192:
case 195:
case 221:
case 253:
case 256:
blendmode = PF_Translucent;
break;
default:
blendmode = PF_Masked;
break;
}
if (grTex->mipmap.flags & TF_TRANSPARENT)
blendmode = PF_Environment;
if (gr_frontsector->numlights)
Opaque translucent midtextures Fixed translucent midtextures being opaque when there were multiple lights in a sector.
2014-03-20 20:34:56 +00:00
{
if (!(blendmode & PF_Masked))
HWR_SplitWall(gr_frontsector, wallVerts, gr_midtexture, &Surf, FF_CUTSOLIDS|FF_TRANSLUCENT);
else
HWR_SplitWall(gr_frontsector, wallVerts, gr_midtexture, &Surf, FF_CUTSOLIDS);
}
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
else if (!(blendmode & PF_Masked))
HWR_AddTransparentWall(wallVerts, &Surf, gr_midtexture, blendmode, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, &Surf, blendmode, lightnum, colormap);
// If there is a colormap change, remove it.
/* if (!(Surf.FlatColor.s.red + Surf.FlatColor.s.green + Surf.FlatColor.s.blue == Surf.FlatColor.s.red/3)
{
Surf.FlatColor.s.red = Surf.FlatColor.s.green = Surf.FlatColor.s.blue = 0xff;
Surf.FlatColor.rgba = 0xffffffff;
}*/
}
}
else
{
// Single sided line... Deal only with the middletexture (if one exists)
gr_midtexture = texturetranslation[gr_sidedef->midtexture];
if (gr_midtexture)
{
if (drawtextured)
{
fixed_t texturevpeg;
// PEGGING
if (gr_linedef->flags & ML_DONTPEGBOTTOM)
texturevpeg = worldbottom + textureheight[gr_sidedef->midtexture] - worldtop + gr_sidedef->rowoffset;
else
// top of texture at top
texturevpeg = gr_sidedef->rowoffset;
grTex = HWR_GetTexture(gr_midtexture);
wallVerts[3].t = wallVerts[2].t = texturevpeg * grTex->scaleY;
wallVerts[0].t = wallVerts[1].t = (texturevpeg + worldtop - worldbottom) * grTex->scaleY;
wallVerts[0].s = wallVerts[3].s = cliplow * grTex->scaleX;
wallVerts[2].s = wallVerts[1].s = cliphigh * grTex->scaleX;
}
// set top/bottom coords
wallVerts[2].y = wallVerts[3].y = FIXED_TO_FLOAT(worldtop);
wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(worldbottom);
// I don't think that solid walls can use translucent linedef types...
if (gr_frontsector->numlights)
HWR_SplitWall(gr_frontsector, wallVerts, gr_midtexture, &Surf, FF_CUTSOLIDS);
else
{
if (grTex->mipmap.flags & TF_TRANSPARENT)
HWR_AddTransparentWall(wallVerts, &Surf, gr_midtexture, PF_Environment, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, &Surf, PF_Masked, lightnum, colormap);
}
}
}
//Hurdler: 3d-floors test
#ifdef R_FAKEFLOORS
if (gr_frontsector && gr_backsector && gr_frontsector->tag != gr_backsector->tag && (gr_backsector->ffloors || gr_frontsector->ffloors))
{
ffloor_t * rover;
fixed_t highcut = 0, lowcut = 0;
highcut = gr_frontsector->ceilingheight < gr_backsector->ceilingheight ? gr_frontsector->ceilingheight : gr_backsector->ceilingheight;
lowcut = gr_frontsector->floorheight > gr_backsector->floorheight ? gr_frontsector->floorheight : gr_backsector->floorheight;
if (gr_backsector->ffloors)
{
for (rover = gr_backsector->ffloors; rover; rover = rover->next)
{
if (!(rover->flags & FF_EXISTS) || !(rover->flags & FF_RENDERSIDES) || (rover->flags & FF_INVERTSIDES))
continue;
if (*rover->topheight < lowcut || *rover->bottomheight > highcut)
continue;
h = *rover->topheight;
l = *rover->bottomheight;
if (h > highcut)
h = highcut;
if (l < lowcut)
l = lowcut;
//Hurdler: HW code starts here
//FIXME: check if peging is correct
// set top/bottom coords
wallVerts[2].y = wallVerts[3].y = FIXED_TO_FLOAT(h);
wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(l);
if (rover->flags & FF_FOG)
{
wallVerts[3].t = wallVerts[2].t = 0;
wallVerts[0].t = wallVerts[1].t = 0;
wallVerts[0].s = wallVerts[3].s = 0;
wallVerts[2].s = wallVerts[1].s = 0;
}
else if (drawtextured)
{
grTex = HWR_GetTexture(texturetranslation[sides[rover->master->sidenum[0]].midtexture]);
wallVerts[3].t = wallVerts[2].t = (*rover->topheight - h + sides[rover->master->sidenum[0]].rowoffset) * grTex->scaleY;
wallVerts[0].t = wallVerts[1].t = (h - l + (*rover->topheight - h + sides[rover->master->sidenum[0]].rowoffset)) * grTex->scaleY;
wallVerts[0].s = wallVerts[3].s = cliplow * grTex->scaleX;
wallVerts[2].s = wallVerts[1].s = cliphigh * grTex->scaleX;
}
if (rover->flags & FF_FOG)
{
FBITFIELD blendmode;
blendmode = PF_Translucent|PF_NoTexture;
lightnum = rover->master->frontsector->lightlevel;
colormap = rover->master->frontsector->extra_colormap;
if (rover->master->frontsector->extra_colormap)
{
Surf.FlatColor.s.alpha = HWR_FogBlockAlpha(rover->master->frontsector->lightlevel,rover->master->frontsector->extra_colormap->rgba,rover->master->frontsector->extra_colormap->fadergba);
}
else
{
Surf.FlatColor.s.alpha = HWR_FogBlockAlpha(rover->master->frontsector->lightlevel,NORMALFOG,FADEFOG);
}
if (gr_frontsector->numlights)
HWR_SplitFog(gr_frontsector, wallVerts, &Surf, rover->flags, lightnum, colormap);
else
HWR_AddTransparentWall(wallVerts, &Surf, 0, blendmode, true, lightnum, colormap);
}
else
{
FBITFIELD blendmode = PF_Masked;
if (rover->flags & FF_TRANSLUCENT)
{
blendmode = PF_Translucent;
Surf.FlatColor.s.alpha = (UINT8)rover->alpha-1 > 255 ? 255 : rover->alpha-1;
}
else if (grTex->mipmap.flags & TF_TRANSPARENT)
{
blendmode = PF_Environment;
}
if (gr_frontsector->numlights)
HWR_SplitWall(gr_frontsector, wallVerts, texturetranslation[sides[rover->master->sidenum[0]].midtexture], &Surf, rover->flags);
else
{
if (blendmode != PF_Masked)
HWR_AddTransparentWall(wallVerts, &Surf, texturetranslation[sides[rover->master->sidenum[0]].midtexture], blendmode, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, &Surf, PF_Masked, lightnum, colormap);
}
}
}
}
if (gr_frontsector->ffloors) // Putting this seperate should allow 2 FOF sectors to be connected without too many errors? I think?
{
for (rover = gr_frontsector->ffloors; rover; rover = rover->next)
{
if (!(rover->flags & FF_EXISTS) || !(rover->flags & FF_RENDERSIDES) || !(rover->flags & FF_ALLSIDES))
continue;
if (*rover->topheight < lowcut || *rover->bottomheight > highcut)
continue;
h = *rover->topheight;
l = *rover->bottomheight;
if (h > highcut)
h = highcut;
if (l < lowcut)
l = lowcut;
//Hurdler: HW code starts here
//FIXME: check if peging is correct
// set top/bottom coords
wallVerts[2].y = wallVerts[3].y = FIXED_TO_FLOAT(h);
wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(l);
if (rover->flags & FF_FOG)
{
wallVerts[3].t = wallVerts[2].t = 0;
wallVerts[0].t = wallVerts[1].t = 0;
wallVerts[0].s = wallVerts[3].s = 0;
wallVerts[2].s = wallVerts[1].s = 0;
}
else if (drawtextured)
{
grTex = HWR_GetTexture(texturetranslation[sides[rover->master->sidenum[0]].midtexture]);
wallVerts[3].t = wallVerts[2].t = (*rover->topheight - h + sides[rover->master->sidenum[0]].rowoffset) * grTex->scaleY;
wallVerts[0].t = wallVerts[1].t = (h - l + (*rover->topheight - h + sides[rover->master->sidenum[0]].rowoffset)) * grTex->scaleY;
wallVerts[0].s = wallVerts[3].s = cliplow * grTex->scaleX;
wallVerts[2].s = wallVerts[1].s = cliphigh * grTex->scaleX;
}
if (rover->flags & FF_FOG)
{
FBITFIELD blendmode;
blendmode = PF_Translucent|PF_NoTexture;
lightnum = rover->master->frontsector->lightlevel;
colormap = rover->master->frontsector->extra_colormap;
if (rover->master->frontsector->extra_colormap)
{
Surf.FlatColor.s.alpha = HWR_FogBlockAlpha(rover->master->frontsector->lightlevel,rover->master->frontsector->extra_colormap->rgba,rover->master->frontsector->extra_colormap->fadergba);
}
else
{
Surf.FlatColor.s.alpha = HWR_FogBlockAlpha(rover->master->frontsector->lightlevel,NORMALFOG,FADEFOG);
}
if (gr_backsector->numlights)
HWR_SplitFog(gr_backsector, wallVerts, &Surf, rover->flags, lightnum, colormap);
else
HWR_AddTransparentWall(wallVerts, &Surf, 0, blendmode, true, lightnum, colormap);
}
else
{
FBITFIELD blendmode = PF_Masked;
if (rover->flags & FF_TRANSLUCENT)
{
blendmode = PF_Translucent;
Surf.FlatColor.s.alpha = (UINT8)rover->alpha-1 > 255 ? 255 : rover->alpha-1;
}
else if (grTex->mipmap.flags & TF_TRANSPARENT)
{
blendmode = PF_Environment;
}
if (gr_backsector->numlights)
HWR_SplitWall(gr_backsector, wallVerts, texturetranslation[sides[rover->master->sidenum[0]].midtexture], &Surf, rover->flags);
else
{
if (blendmode != PF_Masked)
HWR_AddTransparentWall(wallVerts, &Surf, texturetranslation[sides[rover->master->sidenum[0]].midtexture], blendmode, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, &Surf, PF_Masked, lightnum, colormap);
}
}
}
}
}
#endif
//Hurdler: end of 3d-floors test
}
//Hurdler: just like in r_bsp.c
#if 1
#define MAXSEGS MAXVIDWIDTH/2+1
#else
//Alam_GBC: Or not (may cause overflow)
#define MAXSEGS 128
#endif
// hw_newend is one past the last valid seg
static cliprange_t * hw_newend;
static cliprange_t gr_solidsegs[MAXSEGS];
static void printsolidsegs(void)
{
cliprange_t * start;
if (!hw_newend || cv_grbeta.value != 2)
return;
for (start = gr_solidsegs;start != hw_newend;start++)
{
CONS_Debug(DBG_RENDER, "%d-%d|",start->first,start->last);
}
CONS_Debug(DBG_RENDER, "\n\n");
}
//
//
//
static void HWR_ClipSolidWallSegment(INT32 first, INT32 last)
{
cliprange_t *next, *start;
float lowfrac, highfrac;
boolean poorhack = false;
// Find the first range that touches the range
// (adjacent pixels are touching).
start = gr_solidsegs;
while (start->last < first-1)
start++;
if (first < start->first)
{
if (last < start->first-1)
{
// Post is entirely visible (above start),
// so insert a new clippost.
HWR_StoreWallRange(first, last);
next = hw_newend;
hw_newend++;
while (next != start)
{
*next = *(next-1);
next--;
}
next->first = first;
next->last = last;
printsolidsegs();
return;
}
// There is a fragment above *start.
if (!cv_grclipwalls.value)
{
if (!poorhack) HWR_StoreWallRange(first, last);
poorhack = true;
}
else
{
highfrac = HWR_ClipViewSegment(start->first+1, (polyvertex_t *)gr_curline->v1, (polyvertex_t *)gr_curline->v2);
HWR_StoreWallRange(0, highfrac);
}
// Now adjust the clip size.
start->first = first;
}
// Bottom contained in start?
if (last <= start->last)
{
printsolidsegs();
return;
}
next = start;
while (last >= (next+1)->first-1)
{
// There is a fragment between two posts.
if (!cv_grclipwalls.value)
{
if (!poorhack) HWR_StoreWallRange(first,last);
poorhack = true;
}
else
{
lowfrac = HWR_ClipViewSegment(next->last-1, (polyvertex_t *)gr_curline->v1, (polyvertex_t *)gr_curline->v2);
highfrac = HWR_ClipViewSegment((next+1)->first+1, (polyvertex_t *)gr_curline->v1, (polyvertex_t *)gr_curline->v2);
HWR_StoreWallRange(lowfrac, highfrac);
}
next++;
if (last <= next->last)
{
// Bottom is contained in next.
// Adjust the clip size.
start->last = next->last;
goto crunch;
}
}
if (first == next->first+1) // 1 line texture
{
if (!cv_grclipwalls.value)
{
if (!poorhack) HWR_StoreWallRange(first,last);
poorhack = true;
}
else
HWR_StoreWallRange(0, 1);
}
else
{
// There is a fragment after *next.
if (!cv_grclipwalls.value)
{
if (!poorhack) HWR_StoreWallRange(first,last);
poorhack = true;
}
else
{
lowfrac = HWR_ClipViewSegment(next->last-1, (polyvertex_t *)gr_curline->v1, (polyvertex_t *)gr_curline->v2);
HWR_StoreWallRange(lowfrac, 1);
}
}
// Adjust the clip size.
start->last = last;
// Remove start+1 to next from the clip list,
// because start now covers their area.
crunch:
if (next == start)
{
printsolidsegs();
// Post just extended past the bottom of one post.
return;
}
while (next++ != hw_newend)
{
// Remove a post.
*++start = *next;
}
hw_newend = start;
printsolidsegs();
}
//
// handle LineDefs with upper and lower texture (windows)
//
static void HWR_ClipPassWallSegment(INT32 first, INT32 last)
{
cliprange_t *start;
float lowfrac, highfrac;
//to allow noclipwalls but still solidseg reject of non-visible walls
boolean poorhack = false;
// Find the first range that touches the range
// (adjacent pixels are touching).
start = gr_solidsegs;
while (start->last < first - 1)
start++;
if (first < start->first)
{
if (last < start->first-1)
{
// Post is entirely visible (above start).
HWR_StoreWallRange(0, 1);
return;
}
// There is a fragment above *start.
if (!cv_grclipwalls.value)
{ //20/08/99: Changed by Hurdler (taken from faB's code)
if (!poorhack) HWR_StoreWallRange(0, 1);
poorhack = true;
}
else
{
highfrac = HWR_ClipViewSegment(min(start->first + 1,
start->last), (polyvertex_t *)gr_curline->v1,
(polyvertex_t *)gr_curline->v2);
HWR_StoreWallRange(0, highfrac);
}
}
// Bottom contained in start?
if (last <= start->last)
return;
while (last >= (start+1)->first-1)
{
// There is a fragment between two posts.
if (!cv_grclipwalls.value)
{
if (!poorhack) HWR_StoreWallRange(0, 1);
poorhack = true;
}
else
{
lowfrac = HWR_ClipViewSegment(max(start->last-1,start->first), (polyvertex_t *)gr_curline->v1, (polyvertex_t *)gr_curline->v2);
highfrac = HWR_ClipViewSegment(min((start+1)->first+1,(start+1)->last), (polyvertex_t *)gr_curline->v1, (polyvertex_t *)gr_curline->v2);
HWR_StoreWallRange(lowfrac, highfrac);
}
start++;
if (last <= start->last)
return;
}
if (first == start->first+1) // 1 line texture
{
if (!cv_grclipwalls.value)
{
if (!poorhack) HWR_StoreWallRange(0, 1);
poorhack = true;
}
else
HWR_StoreWallRange(0, 1);
}
else
{
// There is a fragment after *next.
if (!cv_grclipwalls.value)
{
if (!poorhack) HWR_StoreWallRange(0,1);
poorhack = true;
}
else
{
lowfrac = HWR_ClipViewSegment(max(start->last - 1,
start->first), (polyvertex_t *)gr_curline->v1,
(polyvertex_t *)gr_curline->v2);
HWR_StoreWallRange(lowfrac, 1);
}
}
}
// --------------------------------------------------------------------------
// HWR_ClipToSolidSegs check if it is hide by wall (solidsegs)
// --------------------------------------------------------------------------
static boolean HWR_ClipToSolidSegs(INT32 first, INT32 last)
{
cliprange_t * start;
// Find the first range that touches the range
// (adjacent pixels are touching).
start = gr_solidsegs;
while (start->last < first-1)
start++;
if (first < start->first)
return true;
// Bottom contained in start?
if (last <= start->last)
return false;
return true;
}
//
// HWR_ClearClipSegs
//
static void HWR_ClearClipSegs(void)
{
gr_solidsegs[0].first = -0x7fffffff;
gr_solidsegs[0].last = -1;
gr_solidsegs[1].first = vid.width; //viewwidth;
gr_solidsegs[1].last = 0x7fffffff;
hw_newend = gr_solidsegs+2;
}
// -----------------+
// HWR_AddLine : Clips the given segment and adds any visible pieces to the line list.
// Notes : gr_cursectorlight is set to the current subsector -> sector -> light value
// : (it may be mixed with the wall's own flat colour in the future ...)
// -----------------+
static void HWR_AddLine(seg_t * line)
{
INT32 x1, x2;
angle_t angle1, angle2;
angle_t span, tspan;
// SoM: Backsector needs to be run through R_FakeFlat
sector_t tempsec;
if (line->polyseg && !(line->polyseg->flags & POF_RENDERSIDES))
return;
gr_curline = line;
// OPTIMIZE: quickly reject orthogonal back sides.
angle1 = R_PointToAngle(FLOAT_TO_FIXED(((polyvertex_t *)gr_curline->v1)->x),
FLOAT_TO_FIXED(((polyvertex_t *)gr_curline->v1)->y));
angle2 = R_PointToAngle(FLOAT_TO_FIXED(((polyvertex_t *)gr_curline->v2)->x),
FLOAT_TO_FIXED(((polyvertex_t *)gr_curline->v2)->y));
// Clip to view edges.
span = angle1 - angle2;
// backface culling : span is < ANGLE_180 if ang1 > ang2 : the seg is facing
if (span >= ANGLE_180)
return;
// Global angle needed by segcalc.
//rw_angle1 = angle1;
angle1 -= dup_viewangle;
angle2 -= dup_viewangle;
tspan = angle1 + gr_clipangle;
if (tspan > 2*gr_clipangle)
{
tspan -= 2*gr_clipangle;
// Totally off the left edge?
if (tspan >= span)
return;
angle1 = gr_clipangle;
}
tspan = gr_clipangle - angle2;
if (tspan > 2*gr_clipangle)
{
tspan -= 2*gr_clipangle;
// Totally off the left edge?
if (tspan >= span)
return;
angle2 = (angle_t)-(signed)gr_clipangle;
}
#if 0
{
float fx1,fx2,fy1,fy2;
//BP: test with a better projection than viewangletox[R_PointToAngle(angle)]
// do not enable this at release 4 mul and 2 div
fx1 = ((polyvertex_t *)(line->v1))->x-gr_viewx;
fy1 = ((polyvertex_t *)(line->v1))->y-gr_viewy;
fy2 = (fx1 * gr_viewcos + fy1 * gr_viewsin);
if (fy2 < 0)
// the point is back
fx1 = 0;
else
fx1 = gr_windowcenterx + (fx1 * gr_viewsin - fy1 * gr_viewcos) * gr_centerx / fy2;
fx2 = ((polyvertex_t *)(line->v2))->x-gr_viewx;
fy2 = ((polyvertex_t *)(line->v2))->y-gr_viewy;
fy1 = (fx2 * gr_viewcos + fy2 * gr_viewsin);
if (fy1 < 0)
// the point is back
fx2 = vid.width;
else
fx2 = gr_windowcenterx + (fx2 * gr_viewsin - fy2 * gr_viewcos) * gr_centerx / fy1;
x1 = fx1+0.5f;
x2 = fx2+0.5f;
}
#else
// The seg is in the view range,
// but not necessarily visible.
angle1 = (angle1+ANGLE_90)>>ANGLETOFINESHIFT;
angle2 = (angle2+ANGLE_90)>>ANGLETOFINESHIFT;
x1 = gr_viewangletox[angle1];
x2 = gr_viewangletox[angle2];
#endif
// Does not cross a pixel?
// if (x1 == x2)
/* {
// BP: HERE IS THE MAIN PROBLEM !
//CONS_Debug(DBG_RENDER, "tineline\n");
return;
}
*/
gr_backsector = line->backsector;
// Single sided line?
if (!gr_backsector)
goto clipsolid;
gr_backsector = R_FakeFlat(gr_backsector, &tempsec, NULL, NULL, true);
// Closed door.
if (gr_backsector->ceilingheight <= gr_frontsector->floorheight ||
gr_backsector->floorheight >= gr_frontsector->ceilingheight)
goto clipsolid;
// Window.
if (gr_backsector->ceilingheight != gr_frontsector->ceilingheight ||
gr_backsector->floorheight != gr_frontsector->floorheight)
goto clippass;
// Reject empty lines used for triggers and special events.
// Identical floor and ceiling on both sides,
// identical light levels on both sides,
// and no middle texture.
if (
#ifdef POLYOBJECTS
!line->polyseg
#endif
&& gr_backsector->ceilingpic == gr_frontsector->ceilingpic
&& gr_backsector->floorpic == gr_frontsector->floorpic
&& gr_backsector->lightlevel == gr_frontsector->lightlevel
&& gr_curline->sidedef->midtexture == 0
&& !gr_backsector->ffloors && !gr_frontsector->ffloors)
// SoM: For 3D sides... Boris, would you like to take a
// crack at rendering 3D sides? You would need to add the
// above check and add code to HWR_StoreWallRange...
{
return;
}
clippass:
if (x1 == x2)
{ x2++;x1 -= 2; }
HWR_ClipPassWallSegment(x1, x2-1);
return;
clipsolid:
if (x1 == x2)
goto clippass;
HWR_ClipSolidWallSegment(x1, x2-1);
}
// HWR_CheckBBox
// Checks BSP node/subtree bounding box.
// Returns true
// if some part of the bbox might be visible.
//
// modified to use local variables
static boolean HWR_CheckBBox(fixed_t *bspcoord)
{
INT32 boxpos, sx1, sx2;
fixed_t px1, py1, px2, py2;
angle_t angle1, angle2, span, tspan;
// Find the corners of the box
// that define the edges from current viewpoint.
if (dup_viewx <= bspcoord[BOXLEFT])
boxpos = 0;
else if (dup_viewx < bspcoord[BOXRIGHT])
boxpos = 1;
else
boxpos = 2;
if (dup_viewy >= bspcoord[BOXTOP])
boxpos |= 0;
else if (dup_viewy > bspcoord[BOXBOTTOM])
boxpos |= 1<<2;
else
boxpos |= 2<<2;
if (boxpos == 5)
return true;
px1 = bspcoord[checkcoord[boxpos][0]];
py1 = bspcoord[checkcoord[boxpos][1]];
px2 = bspcoord[checkcoord[boxpos][2]];
py2 = bspcoord[checkcoord[boxpos][3]];
// check clip list for an open space
angle1 = R_PointToAngle(px1, py1) - dup_viewangle;
angle2 = R_PointToAngle(px2, py2) - dup_viewangle;
span = angle1 - angle2;
// Sitting on a line?
if (span >= ANGLE_180)
return true;
tspan = angle1 + gr_clipangle;
if (tspan > 2*gr_clipangle)
{
tspan -= 2*gr_clipangle;
// Totally off the left edge?
if (tspan >= span)
return false;
angle1 = gr_clipangle;
}
tspan = gr_clipangle - angle2;
if (tspan > 2*gr_clipangle)
{
tspan -= 2*gr_clipangle;
// Totally off the left edge?
if (tspan >= span)
return false;
angle2 = (angle_t)-(signed)gr_clipangle;
}
// Find the first clippost
// that touches the source post
// (adjacent pixels are touching).
angle1 = (angle1+ANGLE_90)>>ANGLETOFINESHIFT;
angle2 = (angle2+ANGLE_90)>>ANGLETOFINESHIFT;
sx1 = gr_viewangletox[angle1];
sx2 = gr_viewangletox[angle2];
// Does not cross a pixel.
if (sx1 == sx2)
return false;
return HWR_ClipToSolidSegs(sx1, sx2 - 1);
}
#ifdef POLYOBJECTS
//
// HWR_AddPolyObjectSegs
//
// haleyjd 02/19/06
// Adds all segs in all polyobjects in the given subsector.
// Modified for hardware rendering.
//
static inline void HWR_AddPolyObjectSegs(void)
{
size_t i, j;
seg_t *gr_fakeline = Z_Calloc(sizeof(seg_t), PU_STATIC, NULL);
polyvertex_t *pv1 = Z_Calloc(sizeof(polyvertex_t), PU_STATIC, NULL);
polyvertex_t *pv2 = Z_Calloc(sizeof(polyvertex_t), PU_STATIC, NULL);
// Sort through all the polyobjects
for (i = 0; i < numpolys; ++i)
{
// Render the polyobject's lines
for (j = 0; j < po_ptrs[i]->segCount; ++j)
{
// Copy the info of a polyobject's seg, then convert it to OpenGL floating point
M_Memcpy(gr_fakeline, po_ptrs[i]->segs[j], sizeof(seg_t));
// Now convert the line to float and add it to be rendered
pv1->x = FIXED_TO_FLOAT(gr_fakeline->v1->x);
pv1->y = FIXED_TO_FLOAT(gr_fakeline->v1->y);
pv2->x = FIXED_TO_FLOAT(gr_fakeline->v2->x);
pv2->y = FIXED_TO_FLOAT(gr_fakeline->v2->y);
gr_fakeline->v1 = (vertex_t *)pv1;
gr_fakeline->v2 = (vertex_t *)pv2;
HWR_AddLine(gr_fakeline);
}
}
// Free temporary data no longer needed
Z_Free(pv2);
Z_Free(pv1);
Z_Free(gr_fakeline);
}
#endif
// -----------------+
// HWR_Subsector : Determine floor/ceiling planes.
// : Add sprites of things in sector.
// : Draw one or more line segments.
// Notes : Sets gr_cursectorlight to the light of the parent sector, to modulate wall textures
// -----------------+
static lumpnum_t doomwaterflat; //set by R_InitFlats hack
static void HWR_Subsector(size_t num)
{
INT16 count;
seg_t *line;
subsector_t *sub;
sector_t tempsec; //SoM: 4/7/2000
INT32 floorlightlevel;
INT32 ceilinglightlevel;
INT32 locFloorHeight, locCeilingHeight;
INT32 light = 0;
fixed_t wh;
extracolormap_t *floorcolormap;
extracolormap_t *ceilingcolormap;
#ifdef PARANOIA //no risk while developing, enough debugging nights!
if (num >= addsubsector)
I_Error("HWR_Subsector: ss %s with numss = %s, addss = %s\n",
sizeu1(num), sizeu2(numsubsectors), sizeu3(addsubsector));
/*if (num >= numsubsectors)
I_Error("HWR_Subsector: ss %i with numss = %i",
num,
numsubsectors);*/
#endif
if (num < numsubsectors)
{
sscount++;
// subsector
sub = &subsectors[num];
// sector
gr_frontsector = sub->sector;
// how many linedefs
count = sub->numlines;
// first line seg
line = &segs[sub->firstline];
}
else
{
// there are no segs but only planes
sub = &subsectors[0];
gr_frontsector = sub->sector;
count = 0;
line = NULL;
}
//SoM: 4/7/2000: Test to make Boom water work in Hardware mode.
gr_frontsector = R_FakeFlat(gr_frontsector, &tempsec, &floorlightlevel,
&ceilinglightlevel, false);
//FIXME: Use floorlightlevel and ceilinglightlevel insted of lightlevel.
floorcolormap = ceilingcolormap = gr_frontsector->extra_colormap;
// ------------------------------------------------------------------------
// sector lighting, DISABLED because it's done in HWR_StoreWallRange
// ------------------------------------------------------------------------
/// \todo store a RGBA instead of just intensity, allow coloured sector lighting
//light = (FUBYTE)(sub->sector->lightlevel & 0xFF) / 255.0f;
//gr_cursectorlight.red = light;
//gr_cursectorlight.green = light;
//gr_cursectorlight.blue = light;
//gr_cursectorlight.alpha = light;
// ----- for special tricks with HW renderer -----
if (gr_frontsector->pseudoSector)
{
locFloorHeight = gr_frontsector->virtualFloorheight;
locCeilingHeight = gr_frontsector->virtualCeilingheight;
}
else if (gr_frontsector->virtualFloor)
{
locFloorHeight = gr_frontsector->virtualFloorheight;
if (gr_frontsector->virtualCeiling)
locCeilingHeight = gr_frontsector->virtualCeilingheight;
else
locCeilingHeight = gr_frontsector->ceilingheight;
}
else if (gr_frontsector->virtualCeiling)
{
locCeilingHeight = gr_frontsector->virtualCeilingheight;
locFloorHeight = gr_frontsector->floorheight;
}
else
{
locFloorHeight = gr_frontsector->floorheight;
locCeilingHeight = gr_frontsector->ceilingheight;
}
// ----- end special tricks -----
if (gr_frontsector->ffloors)
{
if (gr_frontsector->moved)
{
gr_frontsector->numlights = sub->sector->numlights = 0;
R_Prep3DFloors(gr_frontsector);
sub->sector->lightlist = gr_frontsector->lightlist;
sub->sector->numlights = gr_frontsector->numlights;
sub->sector->moved = gr_frontsector->moved = false;
}
light = R_GetPlaneLight(gr_frontsector, locFloorHeight, false);
if (gr_frontsector->floorlightsec == -1)
floorlightlevel = *gr_frontsector->lightlist[light].lightlevel;
floorcolormap = gr_frontsector->lightlist[light].extra_colormap;
light = R_GetPlaneLight(gr_frontsector, locCeilingHeight, false);
if (gr_frontsector->ceilinglightsec == -1)
ceilinglightlevel = *gr_frontsector->lightlist[light].lightlevel;
ceilingcolormap = gr_frontsector->lightlist[light].extra_colormap;
}
sub->sector->extra_colormap = gr_frontsector->extra_colormap;
// render floor ?
#ifdef DOPLANES
// yeah, easy backface cull! :)
if (locFloorHeight < dup_viewz)
{
if (gr_frontsector->floorpic != skyflatnum)
{
if (sub->validcount != validcount)
{
HWR_GetFlat(levelflats[gr_frontsector->floorpic].lumpnum);
HWR_RenderPlane(gr_frontsector, &extrasubsectors[num], locFloorHeight, PF_Occlude, floorlightlevel, levelflats[gr_frontsector->floorpic].lumpnum, NULL, 255, false, floorcolormap);
}
}
else
{
#ifdef POLYSKY
HWR_RenderSkyPlane(&extrasubsectors[num], locFloorHeight);
#endif
}
}
if (locCeilingHeight > dup_viewz)
{
if (gr_frontsector->ceilingpic != skyflatnum)
{
if (sub->validcount != validcount)
{
HWR_GetFlat(levelflats[gr_frontsector->ceilingpic].lumpnum);
HWR_RenderPlane(NULL, &extrasubsectors[num], locCeilingHeight, PF_Occlude, ceilinglightlevel, levelflats[gr_frontsector->ceilingpic].lumpnum,NULL, 255, false, ceilingcolormap);
}
}
else
{
#ifdef POLYSKY
HWR_RenderSkyPlane(&extrasubsectors[num], locCeilingHeight);
#endif
}
}
#ifndef POLYSKY
// Moved here because before, when above the ceiling and the floor does not have the sky flat, it doesn't draw the sky
if (gr_frontsector->ceilingpic == skyflatnum || gr_frontsector->floorpic == skyflatnum)
{
drawsky = true;
}
#endif
#ifdef R_FAKEFLOORS
if (gr_frontsector->ffloors)
{
/// \todo fix light, xoffs, yoffs, extracolormap ?
ffloor_t * rover;
R_Prep3DFloors(gr_frontsector);
for (rover = gr_frontsector->ffloors;
rover; rover = rover->next)
{
if (!(rover->flags & FF_EXISTS) || !(rover->flags & FF_RENDERPLANES))
continue;
if (sub->validcount == validcount)
continue;
if (*rover->bottomheight <= gr_frontsector->ceilingheight &&
*rover->bottomheight >= gr_frontsector->floorheight &&
((dup_viewz < *rover->bottomheight && !(rover->flags & FF_INVERTPLANES)) ||
(dup_viewz > *rover->bottomheight && (rover->flags & FF_BOTHPLANES || rover->flags & FF_INVERTPLANES))))
{
if (rover->flags & FF_FOG)
{
UINT8 alpha;
light = R_GetPlaneLight(gr_frontsector, *rover->bottomheight, dup_viewz < *rover->bottomheight ? true : false);
if (rover->master->frontsector->extra_colormap)
alpha = HWR_FogBlockAlpha(*gr_frontsector->lightlist[light].lightlevel, rover->master->frontsector->extra_colormap->rgba, rover->master->frontsector->extra_colormap->fadergba);
else
alpha = HWR_FogBlockAlpha(*gr_frontsector->lightlist[light].lightlevel, NORMALFOG, FADEFOG);
HWR_AddTransparentFloor(0,
&extrasubsectors[num],
*rover->bottomheight,
*gr_frontsector->lightlist[light].lightlevel,
alpha, rover->master->frontsector, PF_Translucent|PF_NoTexture,
true, rover->master->frontsector->extra_colormap);
}
else if (rover->flags & FF_TRANSLUCENT) // SoM: Flags are more efficient
{
light = R_GetPlaneLight(gr_frontsector, *rover->bottomheight, dup_viewz < *rover->bottomheight ? true : false);
#ifndef SORTING
HWR_Add3DWater(levelflats[*rover->bottompic].lumpnum,
&extrasubsectors[num],
*rover->bottomheight,
*gr_frontsector->lightlist[light].lightlevel,
rover->alpha-1, rover->master->frontsector);
#else
HWR_AddTransparentFloor(levelflats[*rover->bottompic].lumpnum,
&extrasubsectors[num],
*rover->bottomheight,
*gr_frontsector->lightlist[light].lightlevel,
rover->alpha-1 > 255 ? 255 : rover->alpha-1, rover->master->frontsector, PF_Translucent,
false, gr_frontsector->lightlist[light].extra_colormap);
#endif
}
else
{
HWR_GetFlat(levelflats[*rover->bottompic].lumpnum);
light = R_GetPlaneLight(gr_frontsector, *rover->bottomheight, dup_viewz < *rover->bottomheight ? true : false);
HWR_RenderPlane(NULL, &extrasubsectors[num], *rover->bottomheight, PF_Occlude, *gr_frontsector->lightlist[light].lightlevel, levelflats[*rover->bottompic].lumpnum,
rover->master->frontsector, 255, false, gr_frontsector->lightlist[light].extra_colormap);
}
}
if (*rover->topheight >= gr_frontsector->floorheight &&
*rover->topheight <= gr_frontsector->ceilingheight &&
((dup_viewz > *rover->topheight && !(rover->flags & FF_INVERTPLANES)) ||
(dup_viewz < *rover->topheight && (rover->flags & FF_BOTHPLANES || rover->flags & FF_INVERTPLANES))))
{
if (rover->flags & FF_FOG)
{
UINT8 alpha;
light = R_GetPlaneLight(gr_frontsector, *rover->topheight, dup_viewz < *rover->topheight ? true : false);
if (rover->master->frontsector->extra_colormap)
alpha = HWR_FogBlockAlpha(*gr_frontsector->lightlist[light].lightlevel, rover->master->frontsector->extra_colormap->rgba, rover->master->frontsector->extra_colormap->fadergba);
else
alpha = HWR_FogBlockAlpha(*gr_frontsector->lightlist[light].lightlevel, NORMALFOG, FADEFOG);
HWR_AddTransparentFloor(0,
&extrasubsectors[num],
*rover->topheight,
*gr_frontsector->lightlist[light].lightlevel,
alpha, rover->master->frontsector, PF_Translucent|PF_NoTexture,
true, rover->master->frontsector->extra_colormap);
}
else if (rover->flags & FF_TRANSLUCENT)
{
light = R_GetPlaneLight(gr_frontsector, *rover->topheight, dup_viewz < *rover->topheight ? true : false);
#ifndef SORTING
HWR_Add3DWater(levelflats[*rover->toppic].lumpnum,
&extrasubsectors[num],
*rover->topheight,
*gr_frontsector->lightlist[light].lightlevel,
rover->alpha-1, rover->master->frontsector);
#else
HWR_AddTransparentFloor(levelflats[*rover->toppic].lumpnum,
&extrasubsectors[num],
*rover->topheight,
*gr_frontsector->lightlist[light].lightlevel,
rover->alpha-1 > 255 ? 255 : rover->alpha-1, rover->master->frontsector, PF_Translucent,
false, gr_frontsector->lightlist[light].extra_colormap);
#endif
}
else
{
HWR_GetFlat(levelflats[*rover->toppic].lumpnum);
light = R_GetPlaneLight(gr_frontsector, *rover->topheight, dup_viewz < *rover->topheight ? true : false);
HWR_RenderPlane(NULL, &extrasubsectors[num], *rover->topheight, PF_Occlude, *gr_frontsector->lightlist[light].lightlevel, levelflats[*rover->toppic].lumpnum,
rover->master->frontsector, 255, false, gr_frontsector->lightlist[light].extra_colormap);
}
}
}
}
#endif
#endif //doplanes
#ifdef POLYOBJECTS
// Draw all the polyobjects in this subsector
if (sub->polyList)
{
polyobj_t *po = sub->polyList;
numpolys = 0;
// Count all the polyobjects, reset the list, and recount them
while (po)
{
++numpolys;
po = (polyobj_t *)(po->link.next);
}
// Sort polyobjects
R_SortPolyObjects(sub);
// Draw polyobject lines.
HWR_AddPolyObjectSegs();
// Draw polyobject planes
//HWR_AddPolyObjectPlanes();
}
#endif
// Hurder ici se passe les choses INT32<33>essantes!
// on vient de tracer le sol et le plafond
// on trace <20>pr<70>ent d'abord les sprites et ensuite les murs
// hurdler: faux: on ajoute seulement les sprites, le murs sont trac<61> d'abord
if (line)
{
// draw sprites first, coz they are clipped to the solidsegs of
// subsectors more 'in front'
HWR_AddSprites(gr_frontsector);
//Hurdler: at this point validcount must be the same, but is not because
// gr_frontsector doesn't point anymore to sub->sector due to
// the call gr_frontsector = R_FakeFlat(...)
// if it's not done, the sprite is drawn more than once,
// what looks really bad with translucency or dynamic light,
// without talking about the overdraw of course.
sub->sector->validcount = validcount;/// \todo fix that in a better way
while (count--)
{
HWR_AddLine(line);
line++;
}
}
//20/08/99: Changed by Hurdler (taken from faB's code)
#ifdef DOPLANES
// -------------------- WATER IN DEV. TEST ------------------------
//dck hack : use abs(tag) for waterheight
if (gr_frontsector->tag < 0)
{
wh = ((-gr_frontsector->tag) <<FRACBITS) + (FRACUNIT/2);
if (wh > gr_frontsector->floorheight &&
wh < gr_frontsector->ceilingheight)
{
HWR_GetFlat(doomwaterflat);
HWR_RenderPlane(gr_frontsector,
&extrasubsectors[num], wh, PF_Translucent,
gr_frontsector->lightlevel, doomwaterflat,
NULL, 255, false, gr_frontsector->lightlist[light].extra_colormap);
}
}
// -------------------- WATER IN DEV. TEST ------------------------
#endif
sub->validcount = validcount;
}
//
// Renders all subsectors below a given node,
// traversing subtree recursively.
// Just call with BSP root.
#ifdef coolhack
//t;b;l;r
static fixed_t hackbbox[4];
//BOXTOP,
//BOXBOTTOM,
//BOXLEFT,
//BOXRIGHT
static boolean HWR_CheckHackBBox(fixed_t *bb)
{
if (bb[BOXTOP] < hackbbox[BOXBOTTOM]) //y up
return false;
if (bb[BOXBOTTOM] > hackbbox[BOXTOP])
return false;
if (bb[BOXLEFT] > hackbbox[BOXRIGHT])
return false;
if (bb[BOXRIGHT] < hackbbox[BOXLEFT])
return false;
return true;
}
#endif
// BP: big hack for a test in lighning ref : 1249753487AB
fixed_t *hwbbox;
static void HWR_RenderBSPNode(INT32 bspnum)
{
/*//GZDoom code
if(bspnum == -1)
{
HWR_Subsector(subsectors);
return;
}
while(!((size_t)bspnum&(~NF_SUBSECTOR))) // Keep going until found a subsector
{
node_t *bsp = &nodes[bspnum];
// Decide which side the view point is on
INT32 side = R_PointOnSide(dup_viewx, dup_viewy, bsp);
// Recursively divide front space (toward the viewer)
HWR_RenderBSPNode(bsp->children[side]);
// Possibly divide back space (away from viewer)
side ^= 1;
if (!HWR_CheckBBox(bsp->bbox[side]))
return;
bspnum = bsp->children[side];
}
HWR_Subsector(bspnum-1);
*/
node_t *bsp = &nodes[bspnum];
// Decide which side the view point is on
INT32 side;
// Found a subsector?
if (bspnum & NF_SUBSECTOR)
{
if (bspnum == -1)
{
//*(gr_drawsubsector_p++) = 0;
HWR_Subsector(0);
}
else
{
//*(gr_drawsubsector_p++) = bspnum&(~NF_SUBSECTOR);
HWR_Subsector(bspnum&(~NF_SUBSECTOR));
}
return;
}
// Decide which side the view point is on.
side = R_PointOnSide(dup_viewx, dup_viewy, bsp);
// BP: big hack for a test in lighning ref : 1249753487AB
hwbbox = bsp->bbox[side];
// Recursively divide front space.
HWR_RenderBSPNode(bsp->children[side]);
// Possibly divide back space.
if (HWR_CheckBBox(bsp->bbox[side^1]))
{
// BP: big hack for a test in lighning ref : 1249753487AB
hwbbox = bsp->bbox[side^1];
HWR_RenderBSPNode(bsp->children[side^1]);
}
}
/*
//
// Clear 'stack' of subsectors to draw
//
static void HWR_ClearDrawSubsectors(void)
{
gr_drawsubsector_p = gr_drawsubsectors;
}
//
// Draw subsectors pushed on the drawsubsectors 'stack', back to front
//
static void HWR_RenderSubsectors(void)
{
while (gr_drawsubsector_p > gr_drawsubsectors)
{
HWR_RenderBSPNode(
lastsubsec->nextsubsec = bspnum & (~NF_SUBSECTOR);
}
}
*/
// ==========================================================================
// FROM R_MAIN.C
// ==========================================================================
//BP : exactely the same as R_InitTextureMapping
void HWR_InitTextureMapping(void)
{
angle_t i;
INT32 x;
INT32 t;
fixed_t focallength;
fixed_t grcenterx;
fixed_t grcenterxfrac;
INT32 grviewwidth;
#define clipanglefov (FIELDOFVIEW>>ANGLETOFINESHIFT)
grviewwidth = vid.width;
grcenterx = grviewwidth/2;
grcenterxfrac = grcenterx<<FRACBITS;
// Use tangent table to generate viewangletox:
// viewangletox will give the next greatest x
// after the view angle.
//
// Calc focallength
// so FIELDOFVIEW angles covers SCREENWIDTH.
focallength = FixedDiv(grcenterxfrac,
FINETANGENT(FINEANGLES/4+clipanglefov/2));
for (i = 0; i < FINEANGLES/2; i++)
{
if (FINETANGENT(i) > FRACUNIT*2)
t = -1;
else if (FINETANGENT(i) < -FRACUNIT*2)
t = grviewwidth+1;
else
{
t = FixedMul(FINETANGENT(i), focallength);
t = (grcenterxfrac - t+FRACUNIT-1)>>FRACBITS;
if (t < -1)
t = -1;
else if (t > grviewwidth+1)
t = grviewwidth+1;
}
gr_viewangletox[i] = t;
}
// Scan viewangletox[] to generate xtoviewangle[]:
// xtoviewangle will give the smallest view angle
// that maps to x.
for (x = 0; x <= grviewwidth; x++)
{
i = 0;
while (gr_viewangletox[i]>x)
i++;
gr_xtoviewangle[x] = (i<<ANGLETOFINESHIFT) - ANGLE_90;
}
// Take out the fencepost cases from viewangletox.
for (i = 0; i < FINEANGLES/2; i++)
{
if (gr_viewangletox[i] == -1)
gr_viewangletox[i] = 0;
else if (gr_viewangletox[i] == grviewwidth+1)
gr_viewangletox[i] = grviewwidth;
}
gr_clipangle = gr_xtoviewangle[0];
}
// ==========================================================================
// gr_things.c
// ==========================================================================
// sprites are drawn after all wall and planes are rendered, so that
// sprite translucency effects apply on the rendered view (instead of the background sky!!)
static UINT32 gr_visspritecount;
static gr_vissprite_t *gr_visspritechunks[MAXVISSPRITES >> VISSPRITECHUNKBITS] = {NULL};
// --------------------------------------------------------------------------
// HWR_ClearSprites
// Called at frame start.
// --------------------------------------------------------------------------
static void HWR_ClearSprites(void)
{
gr_visspritecount = 0;
}
static inline void HWR_ResetVisSpriteChunks(void)
{
memset(gr_visspritechunks, 0, sizeof(gr_visspritechunks));
}
// --------------------------------------------------------------------------
// HWR_NewVisSprite
// --------------------------------------------------------------------------
static gr_vissprite_t gr_overflowsprite;
static gr_vissprite_t *HWR_GetVisSprite(UINT32 num)
{
UINT32 chunk = num >> VISSPRITECHUNKBITS;
// Allocate chunk if necessary
if (!gr_visspritechunks[chunk])
Z_Malloc(sizeof(gr_vissprite_t) * VISSPRITESPERCHUNK, PU_LEVEL, &gr_visspritechunks[chunk]);
return gr_visspritechunks[chunk] + (num & VISSPRITEINDEXMASK);
}
static gr_vissprite_t *HWR_NewVisSprite(void)
{
if (gr_visspritecount == MAXVISSPRITES)
return &gr_overflowsprite;
return HWR_GetVisSprite(gr_visspritecount++);
}
// Finds a floor through which light does not pass.
static fixed_t HWR_OpaqueFloorAtPos(fixed_t x, fixed_t y, fixed_t z, fixed_t height)
{
const sector_t *sec = R_PointInSubsector(x, y)->sector;
fixed_t floorz = sec->floorheight;
if (sec->ffloors)
{
ffloor_t *rover;
fixed_t delta1, delta2;
const fixed_t thingtop = z + height;
for (rover = sec->ffloors; rover; rover = rover->next)
{
if (!(rover->flags & FF_EXISTS)
|| !(rover->flags & FF_RENDERPLANES)
|| rover->flags & FF_TRANSLUCENT
|| rover->flags & FF_FOG
|| rover->flags & FF_INVERTPLANES)
continue;
delta1 = z - (*rover->bottomheight + ((*rover->topheight - *rover->bottomheight)/2));
delta2 = thingtop - (*rover->bottomheight + ((*rover->topheight - *rover->bottomheight)/2));
if (*rover->topheight > floorz && abs(delta1) < abs(delta2))
floorz = *rover->topheight;
}
}
return floorz;
}
// -----------------+
// HWR_DrawSprite : Draw flat sprites
// : (monsters, bonuses, weapons, lights, ...)
// Returns :
// -----------------+
static void HWR_DrawSprite(gr_vissprite_t *spr)
{
UINT8 i;
float tr_x, tr_y, this_scale = 1.0f;
FOutVector wallVerts[4];
FOutVector *wv;
GLPatch_t *gpatch; // sprite patch converted to hardware
FSurfaceInfo Surf;
const boolean hires = (spr->mobj && spr->mobj->skin && ((skin_t *)spr->mobj->skin)->flags & SF_HIRES);
if (spr->mobj)
this_scale = FIXED_TO_FLOAT(spr->mobj->scale);
if (hires)
this_scale = this_scale * FIXED_TO_FLOAT(((skin_t *)spr->mobj->skin)->highresscale);
if (!spr->mobj)
return;
if (!spr->mobj->subsector)
return;
// cache sprite graphics
//12/12/99: Hurdler:
// OK, I don't change anything for MD2 support because I want to be
// sure to do it the right way. So actually, we keep normal sprite
// in memory and we add the md2 model if it exists for that sprite
gpatch = W_CachePatchNum(spr->patchlumpnum, PU_CACHE);
#ifdef ALAM_LIGHTING
if (!(spr->mobj->flags2 & MF2_DEBRIS) && (spr->mobj->sprite != SPR_PLAY ||
(spr->mobj->player && spr->mobj->player->powers[pw_super])))
HWR_DL_AddLight(spr, gpatch);
#endif
// create the sprite billboard
//
// 3--2
// | /|
// |/ |
// 0--1
// these were already scaled in HWR_ProjectSprite
wallVerts[0].x = wallVerts[3].x = spr->x1;
wallVerts[2].x = wallVerts[1].x = spr->x2;
wallVerts[2].y = wallVerts[3].y = spr->ty;
if (spr->mobj && this_scale != 1.0f)
wallVerts[0].y = wallVerts[1].y = spr->ty - gpatch->height * this_scale;
else
wallVerts[0].y = wallVerts[1].y = spr->ty - gpatch->height;
// make a wall polygon (with 2 triangles), using the floor/ceiling heights,
// and the 2d map coords of start/end vertices
wallVerts[0].z = wallVerts[1].z = wallVerts[2].z = wallVerts[3].z = spr->tz;
// transform
wv = wallVerts;
for (i = 0; i < 4; i++,wv++)
{
//look up/down ----TOTAL SUCKS!!!--- do the 2 in one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
tr_x = wv->z;
tr_y = wv->y;
wv->y = (tr_x * gr_viewludcos) + (tr_y * gr_viewludsin);
wv->z = (tr_x * gr_viewludsin) - (tr_y * gr_viewludcos);
// ---------------------- mega lame test ----------------------------------
//scale y before frustum so that frustum can be scaled to screen height
wv->y *= ORIGINAL_ASPECT * gr_fovlud;
wv->x *= gr_fovlud;
}
if (spr->flip)
{
wallVerts[0].sow = wallVerts[3].sow = gpatch->max_s;
wallVerts[2].sow = wallVerts[1].sow = 0;
}else{
wallVerts[0].sow = wallVerts[3].sow = 0;
wallVerts[2].sow = wallVerts[1].sow = gpatch->max_s;
}
// flip the texture coords (look familiar?)
if (spr->vflip)
{
wallVerts[3].tow = wallVerts[2].tow = gpatch->max_t;
wallVerts[0].tow = wallVerts[1].tow = 0;
}else{
wallVerts[3].tow = wallVerts[2].tow = 0;
wallVerts[0].tow = wallVerts[1].tow = gpatch->max_t;
}
// cache the patch in the graphics card memory
//12/12/99: Hurdler: same comment as above (for md2)
//Hurdler: 25/04/2000: now support colormap in hardware mode
HWR_GetMappedPatch(gpatch, spr->colormap);
// Draw shadow BEFORE sprite
if (cv_shadow.value // Shadows enabled
&& !(spr->mobj->flags & MF_SCENERY && spr->mobj->flags & MF_SPAWNCEILING && spr->mobj->flags & MF_NOGRAVITY) // Ceiling scenery have no shadow.
&& !(spr->mobj->flags2 & MF2_DEBRIS) // Debris have no corona or shadow.
#ifdef ALAM_LIGHTING
&& !(t_lspr[spr->mobj->sprite]->type // Things with dynamic lights have no shadow.
&& (!spr->mobj->player || spr->mobj->player->powers[pw_super])) // Except for non-super players.
#endif
&& (spr->mobj->z >= spr->mobj->floorz)) // Without this, your shadow shows on the floor, even after you die and fall through the ground.
{
////////////////////
// SHADOW SPRITE! //
////////////////////
FOutVector swallVerts[4];
FSurfaceInfo sSurf;
fixed_t floorheight, mobjfloor;
mobjfloor = HWR_OpaqueFloorAtPos(
spr->mobj->x, spr->mobj->y,
spr->mobj->z, spr->mobj->height);
if (cv_shadowoffs.value)
{
angle_t shadowdir;
// Set direction
if (splitscreen && stplyr != &players[displayplayer])
shadowdir = localangle2 + FixedAngle(cv_cam2_rotate.value);
else
shadowdir = localangle + FixedAngle(cv_cam_rotate.value);
// Find floorheight
floorheight = HWR_OpaqueFloorAtPos(
spr->mobj->x + P_ReturnThrustX(spr->mobj, shadowdir, spr->mobj->z - mobjfloor),
spr->mobj->y + P_ReturnThrustY(spr->mobj, shadowdir, spr->mobj->z - mobjfloor),
spr->mobj->z, spr->mobj->height);
// The shadow is falling ABOVE it's mobj?
// Don't draw it, then!
if (spr->mobj->z < floorheight)
goto noshadow;
else
{
fixed_t floorz;
floorz = HWR_OpaqueFloorAtPos(
spr->mobj->x + P_ReturnThrustX(spr->mobj, shadowdir, spr->mobj->z - floorheight),
spr->mobj->y + P_ReturnThrustY(spr->mobj, shadowdir, spr->mobj->z - floorheight),
spr->mobj->z, spr->mobj->height);
// The shadow would be falling on a wall? Don't draw it, then.
// Would draw midair otherwise.
if (floorz < floorheight)
goto noshadow;
}
floorheight = FixedInt(spr->mobj->z - floorheight);
}
else
floorheight = FixedInt(spr->mobj->z - mobjfloor);
// create the sprite billboard
//
// 3--2
// | /|
// |/ |
// 0--1
// x1/x2 were already scaled in HWR_ProjectSprite
swallVerts[0].x = swallVerts[3].x = spr->x1;
swallVerts[2].x = swallVerts[1].x = spr->x2;
if (spr->mobj && this_scale != 1.0f)
{
// Always a pixel above the floor, perfectly flat.
swallVerts[0].y = swallVerts[1].y = swallVerts[2].y = swallVerts[3].y = spr->ty - gpatch->topoffset * this_scale - (floorheight+3);
swallVerts[0].z = swallVerts[1].z = spr->tz - (gpatch->height-gpatch->topoffset) * this_scale;
swallVerts[2].z = swallVerts[3].z = spr->tz + gpatch->topoffset * this_scale;
}
else
{
// Always a pixel above the floor, perfectly flat.
swallVerts[0].y = swallVerts[1].y = swallVerts[2].y = swallVerts[3].y = spr->ty - gpatch->topoffset - (floorheight+3);
// Spread out top away from the camera. (Fixme: Make it always move out in the same direction!... somehow.)
swallVerts[0].z = swallVerts[1].z = spr->tz - (gpatch->height-gpatch->topoffset);
swallVerts[2].z = swallVerts[3].z = spr->tz + gpatch->topoffset;
}
// transform
wv = swallVerts;
for (i = 0; i < 4; i++,wv++)
{
// Offset away from the camera based on height from floor.
if (cv_shadowoffs.value)
wv->z += floorheight;
wv->z += 3;
//look up/down ----TOTAL SUCKS!!!--- do the 2 in one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
tr_x = wv->z;
tr_y = wv->y;
wv->y = (tr_x * gr_viewludcos) + (tr_y * gr_viewludsin);
wv->z = (tr_x * gr_viewludsin) - (tr_y * gr_viewludcos);
// ---------------------- mega lame test ----------------------------------
//scale y before frustum so that frustum can be scaled to screen height
wv->y *= ORIGINAL_ASPECT * gr_fovlud;
wv->x *= gr_fovlud;
}
if (spr->flip)
{
swallVerts[0].sow = swallVerts[3].sow = gpatch->max_s;
swallVerts[2].sow = swallVerts[1].sow = 0;
}
else
{
swallVerts[0].sow = swallVerts[3].sow = 0;
swallVerts[2].sow = swallVerts[1].sow = gpatch->max_s;
}
// flip the texture coords (look familiar?)
if (spr->vflip)
{
swallVerts[3].tow = swallVerts[2].tow = gpatch->max_t;
swallVerts[0].tow = swallVerts[1].tow = 0;
}
else
{
swallVerts[3].tow = swallVerts[2].tow = 0;
swallVerts[0].tow = swallVerts[1].tow = gpatch->max_t;
}
sSurf.FlatColor.s.red = 0x00;
sSurf.FlatColor.s.blue = 0x00;
sSurf.FlatColor.s.green = 0x00;
if (spr->mobj->frame & FF_TRANSMASK || spr->mobj->flags2 & MF2_SHADOW)
{
sector_t *sector = spr->mobj->subsector->sector;
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
UINT8 lightlevel = sector->lightlevel;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
extracolormap_t *colormap = sector->extra_colormap;
if (sector->numlights)
{
INT32 light = R_GetPlaneLight(sector, spr->mobj->floorz, false);
if (!(spr->mobj->frame & FF_FULLBRIGHT))
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
lightlevel = *sector->lightlist[light].lightlevel;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
else
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
lightlevel = 255;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
if (sector->lightlist[light].extra_colormap)
colormap = sector->lightlist[light].extra_colormap;
}
else
{
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
lightlevel = sector->lightlevel;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
if (sector->extra_colormap)
colormap = sector->extra_colormap;
}
if (colormap)
sSurf.FlatColor.rgba = HWR_Lighting(lightlevel/2, colormap->rgba, colormap->fadergba, false, true);
else
sSurf.FlatColor.rgba = HWR_Lighting(lightlevel/2, NORMALFOG, FADEFOG, false, true);
}
Surf.FlatColor.rgba = NORMALFOG;
/// \todo do the test earlier
if (!cv_grmd2.value || (md2_models[spr->mobj->sprite].scale < 0.0f) || (md2_models[spr->mobj->sprite].notfound = true) || (md2_playermodels[(skin_t*)spr->mobj->skin-skins].scale < 0.0f) || (md2_playermodels[(skin_t*)spr->mobj->skin-skins].notfound = true))
{
if (0x80 > floorheight/4)
{
sSurf.FlatColor.s.alpha = (UINT8)(0x80 - floorheight/4);
HWD.pfnDrawPolygon(&sSurf, swallVerts, 4, PF_Translucent|PF_Modulated|PF_Clip);
}
}
}
noshadow:
// This needs to be AFTER the shadows so that the regular sprites aren't drawn completely black.
// sprite lighting by modulating the RGB components
/// \todo coloured
// colormap test
{
sector_t *sector = spr->mobj->subsector->sector;
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
UINT8 lightlevel = sector->lightlevel;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
extracolormap_t *colormap = sector->extra_colormap;
if (sector->numlights)
{
MD2 & Patch drawing fixes MD2's can be translucent again. MD2's can use sprites instead of another random texture if they have no texture. Patches are drawn in the correct place on non aspect correct resolutions. Cropped Patches are drawn.
2014-03-19 23:10:37 +00:00
INT32 light;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
MD2 & Patch drawing fixes MD2's can be translucent again. MD2's can use sprites instead of another random texture if they have no texture. Patches are drawn in the correct place on non aspect correct resolutions. Cropped Patches are drawn.
2014-03-19 23:10:37 +00:00
light = R_GetPlaneLight(sector, spr->mobj->z + spr->mobj->height, false); // Always use the light at the top instead of whatever I was doing before
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
MD2 & Patch drawing fixes MD2's can be translucent again. MD2's can use sprites instead of another random texture if they have no texture. Patches are drawn in the correct place on non aspect correct resolutions. Cropped Patches are drawn.
2014-03-19 23:10:37 +00:00
if (!(spr->mobj->frame & FF_FULLBRIGHT))
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
lightlevel = *sector->lightlist[light].lightlevel;
MD2 & Patch drawing fixes MD2's can be translucent again. MD2's can use sprites instead of another random texture if they have no texture. Patches are drawn in the correct place on non aspect correct resolutions. Cropped Patches are drawn.
2014-03-19 23:10:37 +00:00
else
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
lightlevel = 255;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
MD2 & Patch drawing fixes MD2's can be translucent again. MD2's can use sprites instead of another random texture if they have no texture. Patches are drawn in the correct place on non aspect correct resolutions. Cropped Patches are drawn.
2014-03-19 23:10:37 +00:00
if (sector->lightlist[light].extra_colormap)
colormap = sector->lightlist[light].extra_colormap;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
}
else
{
if (!(spr->mobj->frame & FF_FULLBRIGHT))
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
lightlevel = sector->lightlevel;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
else
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
lightlevel = 255;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
if (sector->extra_colormap)
colormap = sector->extra_colormap;
}
if (spr->mobj->frame & FF_FULLBRIGHT)
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
lightlevel = 255;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
if (colormap)
Surf.FlatColor.rgba = HWR_Lighting(lightlevel, colormap->rgba, colormap->fadergba, false, false);
else
Surf.FlatColor.rgba = HWR_Lighting(lightlevel, NORMALFOG, FADEFOG, false, false);
}
/// \todo do the test earlier
if (!cv_grmd2.value || (md2_models[spr->mobj->sprite].scale < 0.0f))
{
FBITFIELD blend = 0;
if (spr->mobj->flags2 & MF2_SHADOW)
{
Surf.FlatColor.s.alpha = 0x40;
blend = PF_Translucent;
}
else if (spr->mobj->frame & FF_TRANSMASK)
blend = HWR_TranstableToAlpha((spr->mobj->frame & FF_TRANSMASK)>>FF_TRANSSHIFT, &Surf);
else
{
// BP: i agree that is little better in environement but it don't
// work properly under glide nor with fogcolor to ffffff :(
// Hurdler: PF_Environement would be cool, but we need to fix
// the issue with the fog before
Surf.FlatColor.s.alpha = 0xFF;
blend = PF_Translucent|PF_Occlude;
}
HWD.pfnDrawPolygon(&Surf, wallVerts, 4, blend|PF_Modulated|PF_Clip);
}
}
#ifdef HWPRECIP
// Sprite drawer for precipitation
static inline void HWR_DrawPrecipitationSprite(gr_vissprite_t *spr)
{
UINT8 i;
FBITFIELD blend = 0;
float tr_x, tr_y;
FOutVector wallVerts[4];
FOutVector *wv;
GLPatch_t *gpatch; // sprite patch converted to hardware
FSurfaceInfo Surf;
sector_t *sector;
if (!spr->mobj)
return;
if (!spr->mobj->subsector)
return;
// cache sprite graphics
gpatch = W_CachePatchNum(spr->patchlumpnum, PU_CACHE);
// create the sprite billboard
//
// 3--2
// | /|
// |/ |
// 0--1
wallVerts[0].x = wallVerts[3].x = spr->x1;
wallVerts[2].x = wallVerts[1].x = spr->x2;
wallVerts[2].y = wallVerts[3].y = spr->ty;
wallVerts[0].y = wallVerts[1].y = spr->ty - gpatch->height;
// make a wall polygon (with 2 triangles), using the floor/ceiling heights,
// and the 2d map coords of start/end vertices
wallVerts[0].z = wallVerts[1].z = wallVerts[2].z = wallVerts[3].z = spr->tz;
// transform
wv = wallVerts;
for (i = 0; i < 4; i++, wv++)
{
//look up/down ----TOTAL SUCKS!!!--- do the 2 in one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
tr_x = wv->z;
tr_y = wv->y;
wv->y = (tr_x * gr_viewludcos) + (tr_y * gr_viewludsin);
wv->z = (tr_x * gr_viewludsin) - (tr_y * gr_viewludcos);
// ---------------------- mega lame test ----------------------------------
//scale y before frustum so that frustum can be scaled to screen height
wv->y *= ORIGINAL_ASPECT * gr_fovlud;
wv->x *= gr_fovlud;
}
wallVerts[0].sow = wallVerts[3].sow = 0;
wallVerts[2].sow = wallVerts[1].sow = gpatch->max_s;
wallVerts[3].tow = wallVerts[2].tow = 0;
wallVerts[0].tow = wallVerts[1].tow = gpatch->max_t;
// cache the patch in the graphics card memory
//12/12/99: Hurdler: same comment as above (for md2)
//Hurdler: 25/04/2000: now support colormap in hardware mode
HWR_GetMappedPatch(gpatch, spr->colormap);
sector = spr->mobj->subsector->sector;
if (sector->ffloors)
{
ffloor_t *caster = sector->lightlist[R_GetPlaneLight(sector, spr->mobj->z, false)].caster;
sector = caster ? &sectors[caster->secnum] : sector;
}
// sprite lighting by modulating the RGB components
if (sector->extra_colormap)
Surf.FlatColor.rgba = HWR_Lighting(spr->sectorlight,sector->extra_colormap->rgba,sector->extra_colormap->fadergba, false, false);
else
Surf.FlatColor.rgba = HWR_Lighting(spr->sectorlight,NORMALFOG,FADEFOG, false, false);
if (spr->mobj->flags2 & MF2_SHADOW)
{
Surf.FlatColor.s.alpha = 0x40;
blend = PF_Translucent;
}
else if (spr->mobj->frame & FF_TRANSMASK)
blend = HWR_TranstableToAlpha((spr->mobj->frame & FF_TRANSMASK)>>FF_TRANSSHIFT, &Surf);
else
{
// BP: i agree that is little better in environement but it don't
// work properly under glide nor with fogcolor to ffffff :(
// Hurdler: PF_Environement would be cool, but we need to fix
// the issue with the fog before
Surf.FlatColor.s.alpha = 0xFF;
blend = PF_Translucent|PF_Occlude;
}
HWD.pfnDrawPolygon(&Surf, wallVerts, 4, blend|PF_Modulated|PF_Clip);
}
#endif
// --------------------------------------------------------------------------
// Sort vissprites by distance
// --------------------------------------------------------------------------
static gr_vissprite_t gr_vsprsortedhead;
static void HWR_SortVisSprites(void)
{
UINT32 i;
gr_vissprite_t *ds, *dsprev, *dsnext, *dsfirst;
gr_vissprite_t *best = NULL;
gr_vissprite_t unsorted;
float bestdist;
if (!gr_visspritecount)
return;
dsfirst = HWR_GetVisSprite(0);
for (i = 0, dsnext = dsfirst, ds = NULL; i < gr_visspritecount; i++)
{
dsprev = ds;
ds = dsnext;
if (i < gr_visspritecount - 1) dsnext = HWR_GetVisSprite(i + 1);
ds->next = dsnext;
ds->prev = dsprev;
}
// Fix first and last. ds still points to the last one after the loop
dsfirst->prev = &unsorted;
unsorted.next = dsfirst;
ds->next = &unsorted;
unsorted.prev = ds;
// pull the vissprites out by scale
gr_vsprsortedhead.next = gr_vsprsortedhead.prev = &gr_vsprsortedhead;
for (i = 0; i < gr_visspritecount; i++)
{
bestdist = ZCLIP_PLANE-1;
for (ds = unsorted.next; ds != &unsorted; ds = ds->next)
{
if (ds->tz > bestdist)
{
bestdist = ds->tz;
best = ds;
}
}
best->next->prev = best->prev;
best->prev->next = best->next;
best->next = &gr_vsprsortedhead;
best->prev = gr_vsprsortedhead.prev;
gr_vsprsortedhead.prev->next = best;
gr_vsprsortedhead.prev = best;
}
}
// A drawnode is something that points to a 3D floor, 3D side, or masked
// middle texture. This is used for sorting with sprites.
typedef struct
{
wallVert3D wallVerts[4];
FSurfaceInfo Surf;
INT32 texnum;
FBITFIELD blend;
INT32 drawcount;
#ifndef SORTING
fixed_t fixedheight;
#endif
boolean fogwall;
INT32 lightlevel;
extracolormap_t *wallcolormap; // Doing the lighting in HWR_RenderWall now for correct fog after sorting
} wallinfo_t;
static wallinfo_t *wallinfo = NULL;
static size_t numwalls = 0; // a list of transparent walls to be drawn
static void HWR_RenderWall(wallVert3D *wallVerts, FSurfaceInfo *pSurf, FBITFIELD blend, boolean fogwall, INT32 lightlevel, extracolormap_t *wallcolormap);
#define MAX_TRANSPARENTWALL 256
typedef struct
{
extrasubsector_t *xsub;
fixed_t fixedheight;
INT32 lightlevel;
lumpnum_t lumpnum;
INT32 alpha;
sector_t *FOFSector;
FBITFIELD blend;
boolean fogplane;
extracolormap_t *planecolormap;
INT32 drawcount;
} planeinfo_t;
static size_t numplanes = 0; // a list of transparent floors to be drawn
static planeinfo_t *planeinfo = NULL;
#ifndef SORTING
size_t numfloors = 0;
#else
//static floorinfo_t *floorinfo = NULL;
//static size_t numfloors = 0;
//Hurdler: 3D water sutffs
typedef struct gr_drawnode_s
{
planeinfo_t *plane;
wallinfo_t *wall;
gr_vissprite_t *sprite;
// struct gr_drawnode_s *next;
// struct gr_drawnode_s *prev;
} gr_drawnode_t;
static INT32 drawcount = 0;
#define MAX_TRANSPARENTFLOOR 512
// This will likely turn into a copy of HWR_Add3DWater and replace it.
void HWR_AddTransparentFloor(lumpnum_t lumpnum, extrasubsector_t *xsub,
fixed_t fixedheight, INT32 lightlevel, INT32 alpha, sector_t *FOFSector, FBITFIELD blend, boolean fogplane, extracolormap_t *planecolormap)
{
static size_t allocedplanes = 0;
// Force realloc if buffer has been freed
if (!planeinfo)
allocedplanes = 0;
if (allocedplanes < numplanes + 1)
{
allocedplanes += MAX_TRANSPARENTFLOOR;
Z_Realloc(planeinfo, allocedplanes * sizeof (*planeinfo), PU_LEVEL, &planeinfo);
}
planeinfo[numplanes].fixedheight = fixedheight;
planeinfo[numplanes].lightlevel = lightlevel;
planeinfo[numplanes].lumpnum = lumpnum;
planeinfo[numplanes].xsub = xsub;
planeinfo[numplanes].alpha = alpha;
planeinfo[numplanes].FOFSector = FOFSector;
planeinfo[numplanes].blend = blend;
planeinfo[numplanes].fogplane = fogplane;
planeinfo[numplanes].planecolormap = planecolormap;
planeinfo[numplanes].drawcount = drawcount++;
numplanes++;
}
//
// HWR_CreateDrawNodes
// Creates and sorts a list of drawnodes for the scene being rendered.
static void HWR_CreateDrawNodes(void)
{
UINT32 i = 0, p = 0, prev = 0, loop;
const fixed_t pviewz = dup_viewz;
// Dump EVERYTHING into a huge drawnode list. Then we'll sort it!
// Could this be optimized into _AddTransparentWall/_AddTransparentPlane?
// Hell yes! But sort algorithm must be modified to use a linked list.
gr_drawnode_t *sortnode = Z_Calloc((sizeof(planeinfo_t)*numplanes)
+ (sizeof(wallinfo_t)*numwalls)
,PU_STATIC, NULL);
// todo:
// However, in reality we shouldn't be re-copying and shifting all this information
// that is already lying around. This should all be in some sort of linked list or lists.
size_t *sortindex = Z_Calloc(sizeof(size_t) * (numplanes + numwalls), PU_STATIC, NULL);
// If true, swap the draw order.
boolean shift = false;
for (i = 0; i < numplanes; i++, p++)
{
sortnode[p].plane = &planeinfo[i];
sortindex[p] = p;
}
for (i = 0; i < numwalls; i++, p++)
{
sortnode[p].wall = &wallinfo[i];
sortindex[p] = p;
}
// p is the number of stuff to sort
// Add the 3D floors, thicksides, and masked textures...
// Instead of going through drawsegs, we need to iterate
// through the lists of masked textures and
// translucent ffloors being drawn.
// This is a bubble sort! Wahoo!
// Stuff is sorted:
// sortnode[sortindex[0]] = farthest away
// sortnode[sortindex[p-1]] = closest
// "i" should be closer. "prev" should be further.
// The lower drawcount is, the further it is from the screen.
for (loop = 0; loop < p; loop++)
{
for (i = 1; i < p; i++)
{
prev = i-1;
if (sortnode[sortindex[i]].plane)
{
// What are we comparing it with?
if (sortnode[sortindex[prev]].plane)
{
// Plane (i) is further away than plane (prev)
if (ABS(sortnode[sortindex[i]].plane->fixedheight - pviewz) > ABS(sortnode[sortindex[prev]].plane->fixedheight - pviewz))
shift = true;
}
else if (sortnode[sortindex[prev]].wall)
{
// Plane (i) is further than wall (prev)
if (sortnode[sortindex[i]].plane->drawcount > sortnode[sortindex[prev]].wall->drawcount)
shift = true;
}
}
else if (sortnode[sortindex[i]].wall)
{
// What are we comparing it with?
if (sortnode[sortindex[prev]].plane)
{
// Wall (i) is further than plane(prev)
if (sortnode[sortindex[i]].wall->drawcount > sortnode[sortindex[prev]].plane->drawcount)
shift = true;
}
else if (sortnode[sortindex[prev]].wall)
{
// Wall (i) is further than wall (prev)
if (sortnode[sortindex[i]].wall->drawcount > sortnode[sortindex[prev]].wall->drawcount)
shift = true;
}
}
if (shift)
{
size_t temp;
temp = sortindex[prev];
sortindex[prev] = sortindex[i];
sortindex[i] = temp;
shift = false;
}
} //i++
} // loop++
HWD.pfnSetTransform(&atransform);
// Okay! Let's draw it all! Woo!
for (i = 0; i < p; i++)
{
if (sortnode[sortindex[i]].plane)
{
// We aren't traversing the BSP tree, so make gr_frontsector null to avoid crashes.
gr_frontsector = NULL;
if (!(sortnode[sortindex[i]].plane->blend & PF_NoTexture))
HWR_GetFlat(sortnode[sortindex[i]].plane->lumpnum);
HWR_RenderPlane(NULL, sortnode[sortindex[i]].plane->xsub, sortnode[sortindex[i]].plane->fixedheight, sortnode[sortindex[i]].plane->blend, sortnode[sortindex[i]].plane->lightlevel,
sortnode[sortindex[i]].plane->lumpnum, sortnode[sortindex[i]].plane->FOFSector, sortnode[sortindex[i]].plane->alpha, sortnode[sortindex[i]].plane->fogplane, sortnode[sortindex[i]].plane->planecolormap);
}
else if (sortnode[sortindex[i]].wall)
{
if (!(sortnode[sortindex[i]].wall->blend & PF_NoTexture))
HWR_GetTexture(sortnode[sortindex[i]].wall->texnum);
HWR_RenderWall(sortnode[sortindex[i]].wall->wallVerts, &sortnode[sortindex[i]].wall->Surf, sortnode[sortindex[i]].wall->blend, sortnode[sortindex[i]].wall->fogwall,
sortnode[sortindex[i]].wall->lightlevel, sortnode[sortindex[i]].wall->wallcolormap);
}
}
numwalls = 0;
numplanes = 0;
// No mem leaks, please.
Z_Free(sortnode);
Z_Free(sortindex);
}
#endif
// --------------------------------------------------------------------------
// Draw all vissprites
// --------------------------------------------------------------------------
#ifdef SORTING
static void HWR_DrawSprites(void)
{
if (gr_visspritecount > 0)
{
gr_vissprite_t *spr;
// draw all vissprites back to front
for (spr = gr_vsprsortedhead.next;
spr != &gr_vsprsortedhead;
spr = spr->next)
{
#ifdef HWPRECIP
if (spr->precip)
HWR_DrawPrecipitationSprite(spr);
else
#endif
MD2's replacing skinned mobj fix MD2's that replace mobjs that have a skin, but the skin doesn't have an MD2 now display.
2014-03-19 23:40:02 +00:00
if (spr->mobj && spr->mobj->skin && spr->mobj->sprite == SPR_PLAY)
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
{
if (!cv_grmd2.value || (cv_grmd2.value && md2_playermodels[(skin_t*)spr->mobj->skin-skins].notfound == true))
HWR_DrawSprite(spr);
}
else if (!cv_grmd2.value || (cv_grmd2.value && md2_models[spr->mobj->sprite].notfound == true))
HWR_DrawSprite(spr);
}
}
}
#endif
// --------------------------------------------------------------------------
// Draw all MD2
// --------------------------------------------------------------------------
static void HWR_DrawMD2S(void)
{
if (gr_visspritecount > 0)
{
gr_vissprite_t *spr;
// draw all MD2 back to front
for (spr = gr_vsprsortedhead.next;
spr != &gr_vsprsortedhead;
spr = spr->next)
{
#ifdef HWPRECIP
if (!spr->precip)
{
#endif
MD2's replacing skinned mobj fix MD2's that replace mobjs that have a skin, but the skin doesn't have an MD2 now display.
2014-03-19 23:40:02 +00:00
if (spr->mobj && spr->mobj->skin && spr->mobj->sprite == SPR_PLAY)
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
{
if ((md2_playermodels[(skin_t*)spr->mobj->skin-skins].notfound == false) && (md2_playermodels[(skin_t*)spr->mobj->skin-skins].scale > 0.0f))
HWR_DrawMD2(spr);
}
else if (md2_models[spr->mobj->sprite].notfound == false && md2_models[spr->mobj->sprite].scale > 0.0f)
HWR_DrawMD2(spr);
#ifdef HWPRECIP
}
#endif
}
}
}
// --------------------------------------------------------------------------
// HWR_AddSprites
// During BSP traversal, this adds sprites by sector.
// --------------------------------------------------------------------------
static UINT8 sectorlight;
static void HWR_AddSprites(sector_t *sec)
{
mobj_t *thing;
#ifdef HWPRECIP
precipmobj_t *precipthing;
#endif
fixed_t approx_dist, limit_dist;
// BSP is traversed by subsector.
// A sector might have been split into several
// subsectors during BSP building.
// Thus we check whether its already added.
if (sec->validcount == validcount)
return;
// Well, now it will be done.
sec->validcount = validcount;
// sprite lighting
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
sectorlight = sec->lightlevel & 0xff;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
// Handle all things in sector.
// If a limit exists, handle things a tiny bit different.
if ((limit_dist = (fixed_t)((maptol & TOL_NIGHTS) ? cv_drawdist_nights.value : cv_drawdist.value) << FRACBITS))
{
if (!players[displayplayer].mo)
return; // Draw nothing if no player.
// todo: is this really the best option for this situation?
for (thing = sec->thinglist; thing; thing = thing->snext)
{
if (thing->sprite == SPR_NULL || thing->flags2 & MF2_DONTDRAW)
continue;
approx_dist = P_AproxDistance(
players[displayplayer].mo->x - thing->x,
players[displayplayer].mo->y - thing->y);
if (splitscreen && approx_dist > limit_dist && players[secondarydisplayplayer].mo)
approx_dist = P_AproxDistance(
players[secondarydisplayplayer].mo->x - thing->x,
players[secondarydisplayplayer].mo->y - thing->y);
if (approx_dist <= limit_dist)
HWR_ProjectSprite(thing);
}
}
else
{
// Draw everything in sector, no checks
for (thing = sec->thinglist; thing; thing = thing->snext)
if (!(thing->sprite == SPR_NULL || thing->flags2 & MF2_DONTDRAW))
HWR_ProjectSprite(thing);
}
#ifdef HWPRECIP
// Someone seriously wants infinite draw distance for precipitation?
if ((limit_dist = (fixed_t)cv_drawdist_precip.value << FRACBITS))
{
if (!players[displayplayer].mo)
return; // Draw nothing if no player.
// todo: is this really the best option for this situation?
for (precipthing = sec->preciplist; precipthing; precipthing = precipthing->snext)
{
if (precipthing->invisible)
continue;
approx_dist = P_AproxDistance(
players[displayplayer].mo->x - precipthing->x,
players[displayplayer].mo->y - precipthing->y);
if (splitscreen && approx_dist > limit_dist && players[secondarydisplayplayer].mo)
approx_dist = P_AproxDistance(
players[secondarydisplayplayer].mo->x - precipthing->x,
players[secondarydisplayplayer].mo->y - precipthing->y);
if (approx_dist <= limit_dist)
HWR_ProjectPrecipitationSprite(precipthing);
}
}
else
{
// Draw everything in sector, no checks
for (precipthing = sec->preciplist; precipthing; precipthing = precipthing->snext)
if (!precipthing->invisible)
HWR_ProjectPrecipitationSprite(precipthing);
}
#endif
}
// --------------------------------------------------------------------------
// HWR_ProjectSprite
// Generates a vissprite for a thing if it might be visible.
// --------------------------------------------------------------------------
// BP why not use xtoviexangle/viewangletox like in bsp ?....
static void HWR_ProjectSprite(mobj_t *thing)
{
gr_vissprite_t *vis;
float tr_x, tr_y;
float tx, tz;
float x1, x2;
float this_scale;
float gz, gzt;
spritedef_t *sprdef;
spriteframe_t *sprframe;
size_t lumpoff;
unsigned rot;
UINT8 flip;
angle_t ang;
INT32 heightsec, phs;
if (!thing)
return;
else
this_scale = FIXED_TO_FLOAT(thing->scale);
// transform the origin point
tr_x = FIXED_TO_FLOAT(thing->x) - gr_viewx;
tr_y = FIXED_TO_FLOAT(thing->y) - gr_viewy;
// rotation around vertical axis
tz = (tr_x * gr_viewcos) + (tr_y * gr_viewsin);
// thing is behind view plane?
if (tz < ZCLIP_PLANE)
return;
tx = (tr_x * gr_viewsin) - (tr_y * gr_viewcos);
// decide which patch to use for sprite relative to player
#ifdef RANGECHECK
if ((unsigned)thing->sprite >= numsprites)
I_Error("HWR_ProjectSprite: invalid sprite number %i ", thing->sprite);
#endif
rot = thing->frame&FF_FRAMEMASK;
//Fab : 02-08-98: 'skin' override spritedef currently used for skin
if (thing->skin && thing->sprite == SPR_PLAY)
sprdef = &((skin_t *)thing->skin)->spritedef;
else
sprdef = &sprites[thing->sprite];
if (rot >= sprdef->numframes)
{
CONS_Alert(CONS_ERROR, M_GetText("R_ProjectSprite: invalid sprite frame %s/%s for %s\n"),
sizeu1(rot), sizeu2(sprdef->numframes), sprnames[thing->sprite]);
thing->sprite = states[S_UNKNOWN].sprite;
thing->frame = states[S_UNKNOWN].frame;
rot = thing->frame&FF_FRAMEMASK;
thing->state->sprite = thing->sprite;
thing->state->frame = thing->frame;
}
sprframe = &sprdef->spriteframes[rot];
#ifdef PARANOIA
if (!sprframe)
I_Error("sprframes NULL for sprite %d\n", thing->sprite);
#endif
if (sprframe->rotate)
{
// choose a different rotation based on player view
ang = R_PointToAngle(thing->x, thing->y); // uses viewx,viewy
rot = (ang-thing->angle+ANGLE_202h)>>29;
//Fab: lumpid is the index for spritewidth,spriteoffset... tables
lumpoff = sprframe->lumpid[rot];
flip = sprframe->flip & (1<<rot);
}
else
{
// use single rotation for all views
rot = 0; //Fab: for vis->patch below
lumpoff = sprframe->lumpid[0]; //Fab: see note above
flip = sprframe->flip; // Will only be 0x00 or 0xFF
}
if (thing->skin && ((skin_t *)thing->skin)->flags & SF_HIRES)
this_scale = this_scale * FIXED_TO_FLOAT(((skin_t *)thing->skin)->highresscale);
// calculate edges of the shape
if (flip)
tx -= FIXED_TO_FLOAT(spritecachedinfo[lumpoff].width - spritecachedinfo[lumpoff].offset) * this_scale;
else
tx -= FIXED_TO_FLOAT(spritecachedinfo[lumpoff].offset) * this_scale;
// project x
x1 = gr_windowcenterx + (tx * gr_centerx / tz);
//faB : tr_x doesnt matter
// hurdler: it's used in cliptosolidsegs
tr_x = x1;
x1 = tx;
tx += FIXED_TO_FLOAT(spritecachedinfo[lumpoff].width) * this_scale;
x2 = gr_windowcenterx + (tx * gr_centerx / tz);
if (thing->eflags & MFE_VERTICALFLIP)
{
gz = FIXED_TO_FLOAT(thing->z+thing->height) - FIXED_TO_FLOAT(spritecachedinfo[lumpoff].topoffset) * this_scale;
gzt = gz + FIXED_TO_FLOAT(spritecachedinfo[lumpoff].height) * this_scale;
}
else
{
gzt = FIXED_TO_FLOAT(thing->z) + FIXED_TO_FLOAT(spritecachedinfo[lumpoff].topoffset) * this_scale;
gz = gzt - FIXED_TO_FLOAT(spritecachedinfo[lumpoff].height) * this_scale;
}
if (thing->subsector->sector->cullheight)
{
float cullplane = FIXED_TO_FLOAT(thing->subsector->sector->cullheight->frontsector->floorheight);
if (thing->subsector->sector->cullheight->flags & ML_NOCLIMB) // Group culling
{
// Make sure this is part of the same group
if (viewsector->cullheight && viewsector->cullheight->frontsector
== thing->subsector->sector->cullheight->frontsector)
{
// OK, we can cull
if (gr_viewz > cullplane && gzt < cullplane) // Cull if below plane
return;
if (gz > cullplane && gr_viewz <= cullplane) // Cull if above plane
return;
}
}
else // Quick culling
{
if (gr_viewz > cullplane && gzt < cullplane) // Cull if below plane
return;
if (gz > cullplane && gr_viewz <= cullplane) // Cull if above plane
return;
}
}
heightsec = thing->subsector->sector->heightsec;
phs = players[displayplayer].mo->subsector->sector->heightsec;
if (heightsec != -1 && phs != -1) // only clip things which are in special sectors
{
if (gr_viewz < FIXED_TO_FLOAT(sectors[phs].floorheight) ?
FIXED_TO_FLOAT(thing->z) >= FIXED_TO_FLOAT(sectors[heightsec].floorheight) :
gzt < FIXED_TO_FLOAT(sectors[heightsec].floorheight))
return;
if (gr_viewz > FIXED_TO_FLOAT(sectors[phs].ceilingheight) ?
gzt < FIXED_TO_FLOAT(sectors[heightsec].ceilingheight) && gr_viewz >= FIXED_TO_FLOAT(sectors[heightsec].ceilingheight) :
FIXED_TO_FLOAT(thing->z) >= FIXED_TO_FLOAT(sectors[heightsec].ceilingheight))
return;
}
// store information in a vissprite
vis = HWR_NewVisSprite();
vis->x1 = x1;
#if 0
vis->x2 = x2;
#else
(void)x2;
#endif
vis->x2 = tx;
vis->tz = tz;
vis->patchlumpnum = sprframe->lumppat[rot];
vis->flip = flip;
vis->mobj = thing;
//Hurdler: 25/04/2000: now support colormap in hardware mode
if ((vis->mobj->flags & MF_BOSS) && (vis->mobj->flags2 & MF2_FRET) && (leveltime & 1)) // Bosses "flash"
{
if (vis->mobj->type == MT_CYBRAKDEMON)
vis->colormap = R_GetTranslationColormap(TC_ALLWHITE, 0, GTC_CACHE);
else if (vis->mobj->type == MT_METALSONIC_BATTLE)
vis->colormap = R_GetTranslationColormap(TC_METALSONIC, 0, GTC_CACHE);
else
vis->colormap = R_GetTranslationColormap(TC_BOSS, 0, GTC_CACHE);
}
else if (thing->color)
{
// New colormap stuff for skins Tails 06-07-2002
if (thing->skin && thing->sprite == SPR_PLAY) // This thing is a player!
{
size_t skinnum = (skin_t*)thing->skin-skins;
vis->colormap = R_GetTranslationColormap((INT32)skinnum, thing->color, GTC_CACHE);
}
else
vis->colormap = R_GetTranslationColormap(TC_DEFAULT, vis->mobj->color ? vis->mobj->color : SKINCOLOR_CYAN, GTC_CACHE);
}
else
vis->colormap = colormaps;
// set top/bottom coords
vis->ty = gzt - gr_viewz;
//CONS_Debug(DBG_RENDER, "------------------\nH: sprite : %d\nH: frame : %x\nH: type : %d\nH: sname : %s\n\n",
// thing->sprite, thing->frame, thing->type, sprnames[thing->sprite]);
if (thing->eflags & MFE_VERTICALFLIP)
vis->vflip = true;
else
vis->vflip = false;
vis->precip = false;
}
#ifdef HWPRECIP
// Precipitation projector for hardware mode
static void HWR_ProjectPrecipitationSprite(precipmobj_t *thing)
{
gr_vissprite_t *vis;
float tr_x, tr_y;
float tx, tz;
float x1, x2;
spritedef_t *sprdef;
spriteframe_t *sprframe;
size_t lumpoff;
unsigned rot = 0;
UINT8 flip;
// transform the origin point
tr_x = FIXED_TO_FLOAT(thing->x) - gr_viewx;
tr_y = FIXED_TO_FLOAT(thing->y) - gr_viewy;
// rotation around vertical axis
tz = (tr_x * gr_viewcos) + (tr_y * gr_viewsin);
// thing is behind view plane?
if (tz < ZCLIP_PLANE)
return;
tx = (tr_x * gr_viewsin) - (tr_y * gr_viewcos);
// decide which patch to use for sprite relative to player
if ((unsigned)thing->sprite >= numsprites)
#ifdef RANGECHECK
I_Error("HWR_ProjectPrecipitationSprite: invalid sprite number %i ",
thing->sprite);
#else
return;
#endif
sprdef = &sprites[thing->sprite];
if ((size_t)(thing->frame&FF_FRAMEMASK) >= sprdef->numframes)
#ifdef RANGECHECK
I_Error("HWR_ProjectPrecipitationSprite: invalid sprite frame %i : %i for %s",
thing->sprite, thing->frame, sprnames[thing->sprite]);
#else
return;
#endif
sprframe = &sprdef->spriteframes[ thing->frame & FF_FRAMEMASK];
// use single rotation for all views
lumpoff = sprframe->lumpid[0];
flip = sprframe->flip; // Will only be 0x00 or 0xFF
// calculate edges of the shape
tx -= FIXED_TO_FLOAT(spritecachedinfo[lumpoff].offset);
// project x
x1 = gr_windowcenterx + (tx * gr_centerx / tz);
//faB : tr_x doesnt matter
// hurdler: it's used in cliptosolidsegs
tr_x = x1;
x1 = tx;
tx += FIXED_TO_FLOAT(spritecachedinfo[lumpoff].width);
x2 = gr_windowcenterx + (tx * gr_centerx / tz);
//
// store information in a vissprite
//
vis = HWR_NewVisSprite();
vis->x1 = x1;
vis->x2 = tx;
vis->tz = tz;
vis->patchlumpnum = sprframe->lumppat[rot];
vis->flip = flip;
vis->mobj = (mobj_t *)thing;
vis->colormap = colormaps;
// set top/bottom coords
vis->ty = FIXED_TO_FLOAT(thing->z + spritecachedinfo[lumpoff].topoffset) - gr_viewz;
vis->sectorlight = 0xff;
vis->precip = true;
}
#endif
// ==========================================================================
//
// ==========================================================================
static void HWR_DrawSkyBackground(player_t *player)
{
FOutVector v[4];
angle_t angle;
float f;
// 3--2
// | /|
// |/ |
// 0--1
(void)player;
HWR_GetTexture(skytexture);
//Hurdler: the sky is the only texture who need 4.0f instead of 1.0
// because it's called just after clearing the screen
// and thus, the near clipping plane is set to 3.99
v[0].x = v[3].x = -4.0f;
v[1].x = v[2].x = 4.0f;
v[0].y = v[1].y = -4.0f;
v[2].y = v[3].y = 4.0f;
v[0].z = v[1].z = v[2].z = v[3].z = 4.0f;
OpenGL Skybox OpenGL skyboxes. Slight change to sky vertical offsetting.
2014-03-20 20:13:15 +00:00
// X
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
if (textures[skytexture]->width > 256)
angle = (angle_t)((float)(dup_viewangle + gr_xtoviewangle[0])
/((float)textures[skytexture]->width/256.0f))
%(ANGLE_90-1);
else
angle = (dup_viewangle + gr_xtoviewangle[0])%(ANGLE_90-1);
f = (float)((textures[skytexture]->width/2)
* FIXED_TO_FLOAT(FINETANGENT((2048
- ((INT32)angle>>(ANGLETOFINESHIFT + 1))) & FINEMASK)));
v[0].sow = v[3].sow = 0.22f+(f)/(textures[skytexture]->width/2);
v[2].sow = v[1].sow = 0.22f+(f+(127))/(textures[skytexture]->width/2);
OpenGL Skybox OpenGL skyboxes. Slight change to sky vertical offsetting.
2014-03-20 20:13:15 +00:00
// Y
if (textures[skytexture]->height > 256)
angle = (angle_t)((float)(aimingangle)
*(256.0f/(float)textures[skytexture]->height))
%(ANGLE_90-1); // Just so that looking up and down scales right
else
angle = (aimingangle);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
f = (float)((textures[skytexture]->height/2)
* FIXED_TO_FLOAT(FINETANGENT((2048
OpenGL Skybox OpenGL skyboxes. Slight change to sky vertical offsetting.
2014-03-20 20:13:15 +00:00
- ((INT32)angle>>(ANGLETOFINESHIFT + 1))) & FINEMASK)));
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
v[3].tow = v[2].tow = 0.22f+(f)/(textures[skytexture]->height/2);
v[0].tow = v[1].tow = 0.22f+(f+(127))/(textures[skytexture]->height/2);
HWD.pfnDrawPolygon(NULL, v, 4, 0);
}
// -----------------+
// HWR_ClearView : clear the viewwindow, with maximum z value
// -----------------+
static inline void HWR_ClearView(void)
{
// 3--2
// | /|
// |/ |
// 0--1
/// \bug faB - enable depth mask, disable color mask
HWD.pfnGClipRect((INT32)gr_viewwindowx,
(INT32)gr_viewwindowy,
(INT32)(gr_viewwindowx + gr_viewwidth),
(INT32)(gr_viewwindowy + gr_viewheight),
3.99f);
HWD.pfnClearBuffer(false, true, 0);
//disable clip window - set to full size
// rem by Hurdler
// HWD.pfnGClipRect(0, 0, vid.width, vid.height);
}
// -----------------+
// HWR_SetViewSize : set projection and scaling values
// -----------------+
void HWR_SetViewSize(void)
{
// setup view size
gr_viewwidth = (float)vid.width;
gr_viewheight = (float)vid.height;
if (splitscreen)
gr_viewheight /= 2;
gr_centerx = gr_viewwidth / 2;
gr_basecentery = gr_viewheight / 2; //note: this is (gr_centerx * gr_viewheight / gr_viewwidth)
gr_viewwindowx = (vid.width - gr_viewwidth) / 2;
gr_windowcenterx = (float)(vid.width / 2);
if (gr_viewwidth == vid.width)
{
gr_baseviewwindowy = 0;
gr_basewindowcentery = gr_viewheight / 2; // window top left corner at 0,0
}
else
{
gr_baseviewwindowy = (vid.height-gr_viewheight) / 2;
gr_basewindowcentery = (float)(vid.height / 2);
}
gr_pspritexscale = gr_viewwidth / BASEVIDWIDTH;
gr_pspriteyscale = ((vid.height*gr_pspritexscale*BASEVIDWIDTH)/BASEVIDHEIGHT)/vid.width;
}
OpenGL Skybox OpenGL skyboxes. Slight change to sky vertical offsetting.
2014-03-20 20:13:15 +00:00
// ==========================================================================
// Same as rendering the player view, but from the skybox object
// ==========================================================================
void HWR_RenderSkyboxView(INT32 viewnumber, player_t *player)
{
const float fpov = FIXED_TO_FLOAT(cv_grfov.value+player->fovadd);
FTransform stransform;
{
// do we really need to save player (is it not the same)?
player_t *saved_player = stplyr;
stplyr = player;
ST_doPaletteStuff();
stplyr = saved_player;
#ifdef ALAM_LIGHTING
HWR_SetLights(viewnumber);
#endif
}
// note: sets viewangle, viewx, viewy, viewz
R_SkyboxFrame(player);
// copy view cam position for local use
dup_viewx = viewx;
dup_viewy = viewy;
dup_viewz = viewz;
dup_viewangle = viewangle;
// set window position
gr_centery = gr_basecentery;
gr_viewwindowy = gr_baseviewwindowy;
gr_windowcentery = gr_basewindowcentery;
if (splitscreen && viewnumber == 1)
{
gr_viewwindowy += (vid.height/2);
gr_windowcentery += (vid.height/2);
}
// check for new console commands.
NetUpdate();
gr_viewx = FIXED_TO_FLOAT(dup_viewx);
gr_viewy = FIXED_TO_FLOAT(dup_viewy);
gr_viewz = FIXED_TO_FLOAT(dup_viewz);
gr_viewsin = FIXED_TO_FLOAT(viewsin);
gr_viewcos = FIXED_TO_FLOAT(viewcos);
gr_viewludsin = FIXED_TO_FLOAT(FINECOSINE(aimingangle>>ANGLETOFINESHIFT));
gr_viewludcos = FIXED_TO_FLOAT(-FINESINE(aimingangle>>ANGLETOFINESHIFT));
//04/01/2000: Hurdler: added for T&L
// It should replace all other gr_viewxxx when finished
atransform.anglex = (float)(aimingangle>>ANGLETOFINESHIFT)*(360.0f/(float)FINEANGLES);
atransform.angley = (float)(viewangle>>ANGLETOFINESHIFT)*(360.0f/(float)FINEANGLES);
atransform.x = gr_viewx; // FIXED_TO_FLOAT(viewx)
atransform.y = gr_viewy; // FIXED_TO_FLOAT(viewy)
atransform.z = gr_viewz; // FIXED_TO_FLOAT(viewz)
atransform.scalex = 1;
atransform.scaley = ORIGINAL_ASPECT;
atransform.scalez = 1;
atransform.fovxangle = fpov; // Tails
atransform.fovyangle = fpov; // Tails
atransform.splitscreen = splitscreen;
// Transform for sprites
stransform.anglex = 0.0f;
stransform.angley = -270.0f;
stransform.x = 0.0f;
stransform.y = 0.0f;
stransform.z = 0.0f;
stransform.scalex = 1;
stransform.scaley = 1;
stransform.scalez = 1;
stransform.fovxangle = 90.0f;
stransform.fovyangle = 90.0f;
stransform.splitscreen = splitscreen;
gr_fovlud = (float)(1.0l/tan((double)(fpov*M_PIl/360l)));
//------------------------------------------------------------------------
HWR_ClearView();
if (0)
{ // I don't think this is ever used.
if (cv_grfog.value)
HWR_FoggingOn(); // First of all, turn it on, set the default user settings too
else
HWD.pfnSetSpecialState(HWD_SET_FOG_MODE, 0); // Turn it off
}
#ifndef _NDS
if (drawsky)
HWR_DrawSkyBackground(player);
#else
(void)HWR_DrawSkyBackground;
#endif
//Hurdler: it doesn't work in splitscreen mode
drawsky = splitscreen;
HWR_ClearSprites();
#ifdef SORTING
drawcount = 0;
#endif
HWR_ClearClipSegs();
//04/01/2000: Hurdler: added for T&L
// Actually it only works on Walls and Planes
HWD.pfnSetTransform(&atransform);
validcount++;
HWR_RenderBSPNode((INT32)numnodes-1);
// Make a viewangle int so we can render things based on mouselook
if (player == &players[consoleplayer])
viewangle = localaiming;
else if (splitscreen && player == &players[secondarydisplayplayer])
viewangle = localaiming2;
// Handle stuff when you are looking farther up or down.
if ((aimingangle || cv_grfov.value+player->fovadd > 90*FRACUNIT))
{
dup_viewangle += ANGLE_90;
HWR_ClearClipSegs();
HWR_RenderBSPNode((INT32)numnodes-1); //left
dup_viewangle += ANGLE_90;
if (((INT32)aimingangle > ANGLE_45 || (INT32)aimingangle<-ANGLE_45))
{
HWR_ClearClipSegs();
HWR_RenderBSPNode((INT32)numnodes-1); //back
}
dup_viewangle += ANGLE_90;
HWR_ClearClipSegs();
HWR_RenderBSPNode((INT32)numnodes-1); //right
dup_viewangle += ANGLE_90;
}
// Check for new console commands.
NetUpdate();
#ifdef ALAM_LIGHTING
//14/11/99: Hurdler: moved here because it doesn't work with
// subsector, see other comments;
HWR_ResetLights();
#endif
// Draw MD2 and sprites
#ifdef SORTING
HWR_SortVisSprites();
#endif
HWR_DrawMD2S();
// Draw the sprites with trivial transform
HWD.pfnSetTransform(&stransform);
#ifdef SORTING
HWR_DrawSprites();
#endif
#ifdef NEWCORONAS
//Hurdler: they must be drawn before translucent planes, what about gl fog?
HWR_DrawCoronas();
#endif
#ifdef SORTING
if (numplanes || numwalls) //Hurdler: render 3D water and transparent walls after everything
{
HWR_CreateDrawNodes();
}
#else
if (numfloors || numwalls)
{
HWD.pfnSetTransform(&atransform);
if (numfloors)
HWR_Render3DWater();
if (numwalls)
HWR_RenderTransparentWalls();
}
#endif
HWD.pfnSetTransform(NULL);
// put it off for menus etc
if (cv_grfog.value)
HWD.pfnSetSpecialState(HWD_SET_FOG_MODE, 0);
// Check for new console commands.
NetUpdate();
// added by Hurdler for correct splitscreen
// moved here by hurdler so it works with the new near clipping plane
HWD.pfnGClipRect(0, 0, vid.width, vid.height, NZCLIP_PLANE);
}
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
// ==========================================================================
//
// ==========================================================================
void HWR_RenderPlayerView(INT32 viewnumber, player_t *player)
{
const float fpov = FIXED_TO_FLOAT(cv_grfov.value+player->fovadd);
FTransform stransform;
OpenGL Skybox OpenGL skyboxes. Slight change to sky vertical offsetting.
2014-03-20 20:13:15 +00:00
const boolean skybox = (skyboxmo[0] && cv_skybox.value); // True if there's a skybox object and skyboxes are on
OpenGL remove HOMs Removes HOMs from OpenGL. This also seems to have made skyboxes not draw ontop of everything else on Intel GPU's.
2014-03-22 17:17:40 +00:00
FRGBAFloat ClearColor;
ClearColor.red = 0.0f;
ClearColor.green = 0.0f;
ClearColor.blue = 0.0f;
ClearColor.alpha = 1.0f;
HWD.pfnClearBuffer(true, false, &ClearColor); // Clear the Color Buffer, stops HOMs. Also seems to fix the skybox issue on Intel GPUs.
OpenGL Skybox OpenGL skyboxes. Slight change to sky vertical offsetting.
2014-03-20 20:13:15 +00:00
if (skybox && drawsky) // If there's a skybox and we should be drawing the sky, draw the skybox
HWR_RenderSkyboxView(viewnumber, player); // This is drawn before everything else so it is placed behind
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
{
// do we really need to save player (is it not the same)?
player_t *saved_player = stplyr;
stplyr = player;
ST_doPaletteStuff();
stplyr = saved_player;
#ifdef ALAM_LIGHTING
HWR_SetLights(viewnumber);
#endif
}
// note: sets viewangle, viewx, viewy, viewz
OpenGL Skybox OpenGL skyboxes. Slight change to sky vertical offsetting.
2014-03-20 20:13:15 +00:00
R_SetupFrame(player, false); // This can stay false because it is only used to set viewsky in r_main.c, which isn't used here
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
// copy view cam position for local use
dup_viewx = viewx;
dup_viewy = viewy;
dup_viewz = viewz;
dup_viewangle = viewangle;
// set window position
gr_centery = gr_basecentery;
gr_viewwindowy = gr_baseviewwindowy;
gr_windowcentery = gr_basewindowcentery;
if (splitscreen && viewnumber == 1)
{
gr_viewwindowy += (vid.height/2);
gr_windowcentery += (vid.height/2);
}
// check for new console commands.
NetUpdate();
gr_viewx = FIXED_TO_FLOAT(dup_viewx);
gr_viewy = FIXED_TO_FLOAT(dup_viewy);
gr_viewz = FIXED_TO_FLOAT(dup_viewz);
gr_viewsin = FIXED_TO_FLOAT(viewsin);
gr_viewcos = FIXED_TO_FLOAT(viewcos);
gr_viewludsin = FIXED_TO_FLOAT(FINECOSINE(aimingangle>>ANGLETOFINESHIFT));
gr_viewludcos = FIXED_TO_FLOAT(-FINESINE(aimingangle>>ANGLETOFINESHIFT));
//04/01/2000: Hurdler: added for T&L
// It should replace all other gr_viewxxx when finished
atransform.anglex = (float)(aimingangle>>ANGLETOFINESHIFT)*(360.0f/(float)FINEANGLES);
atransform.angley = (float)(viewangle>>ANGLETOFINESHIFT)*(360.0f/(float)FINEANGLES);
atransform.x = gr_viewx; // FIXED_TO_FLOAT(viewx)
atransform.y = gr_viewy; // FIXED_TO_FLOAT(viewy)
atransform.z = gr_viewz; // FIXED_TO_FLOAT(viewz)
atransform.scalex = 1;
atransform.scaley = ORIGINAL_ASPECT;
atransform.scalez = 1;
atransform.fovxangle = fpov; // Tails
atransform.fovyangle = fpov; // Tails
atransform.splitscreen = splitscreen;
// Transform for sprites
stransform.anglex = 0.0f;
stransform.angley = -270.0f;
stransform.x = 0.0f;
stransform.y = 0.0f;
stransform.z = 0.0f;
stransform.scalex = 1;
stransform.scaley = 1;
stransform.scalez = 1;
stransform.fovxangle = 90.0f;
stransform.fovyangle = 90.0f;
stransform.splitscreen = splitscreen;
gr_fovlud = (float)(1.0l/tan((double)(fpov*M_PIl/360l)));
//------------------------------------------------------------------------
OpenGL remove HOMs Removes HOMs from OpenGL. This also seems to have made skyboxes not draw ontop of everything else on Intel GPU's.
2014-03-22 17:17:40 +00:00
HWR_ClearView(); // Clears the depth buffer and resets the view I believe
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
if (0)
{ // I don't think this is ever used.
if (cv_grfog.value)
HWR_FoggingOn(); // First of all, turn it on, set the default user settings too
else
HWD.pfnSetSpecialState(HWD_SET_FOG_MODE, 0); // Turn it off
}
#ifndef _NDS
OpenGL Skybox OpenGL skyboxes. Slight change to sky vertical offsetting.
2014-03-20 20:13:15 +00:00
if (!skybox && drawsky) // Don't draw the regular sky if there's a skybox
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
HWR_DrawSkyBackground(player);
#else
(void)HWR_DrawSkyBackground;
#endif
//Hurdler: it doesn't work in splitscreen mode
drawsky = splitscreen;
HWR_ClearSprites();
#ifdef SORTING
drawcount = 0;
#endif
HWR_ClearClipSegs();
//04/01/2000: Hurdler: added for T&L
// Actually it only works on Walls and Planes
HWD.pfnSetTransform(&atransform);
validcount++;
HWR_RenderBSPNode((INT32)numnodes-1);
// Make a viewangle int so we can render things based on mouselook
if (player == &players[consoleplayer])
viewangle = localaiming;
else if (splitscreen && player == &players[secondarydisplayplayer])
viewangle = localaiming2;
// Handle stuff when you are looking farther up or down.
if ((aimingangle || cv_grfov.value+player->fovadd > 90*FRACUNIT))
{
dup_viewangle += ANGLE_90;
HWR_ClearClipSegs();
HWR_RenderBSPNode((INT32)numnodes-1); //left
dup_viewangle += ANGLE_90;
if (((INT32)aimingangle > ANGLE_45 || (INT32)aimingangle<-ANGLE_45))
{
HWR_ClearClipSegs();
HWR_RenderBSPNode((INT32)numnodes-1); //back
}
dup_viewangle += ANGLE_90;
HWR_ClearClipSegs();
HWR_RenderBSPNode((INT32)numnodes-1); //right
dup_viewangle += ANGLE_90;
}
// Check for new console commands.
NetUpdate();
#ifdef ALAM_LIGHTING
//14/11/99: Hurdler: moved here because it doesn't work with
// subsector, see other comments;
HWR_ResetLights();
#endif
// Draw MD2 and sprites
#ifdef SORTING
HWR_SortVisSprites();
#endif
HWR_DrawMD2S();
// Draw the sprites with trivial transform
HWD.pfnSetTransform(&stransform);
#ifdef SORTING
HWR_DrawSprites();
#endif
#ifdef NEWCORONAS
//Hurdler: they must be drawn before translucent planes, what about gl fog?
HWR_DrawCoronas();
#endif
#ifdef SORTING
if (numplanes || numwalls) //Hurdler: render 3D water and transparent walls after everything
{
HWR_CreateDrawNodes();
}
#else
if (numfloors || numwalls)
{
HWD.pfnSetTransform(&atransform);
if (numfloors)
HWR_Render3DWater();
if (numwalls)
HWR_RenderTransparentWalls();
}
#endif
HWD.pfnSetTransform(NULL);
// put it off for menus etc
if (cv_grfog.value)
HWD.pfnSetSpecialState(HWD_SET_FOG_MODE, 0);
HWR_DoPostProcessor(player);
// Check for new console commands.
NetUpdate();
// added by Hurdler for correct splitscreen
// moved here by hurdler so it works with the new near clipping plane
HWD.pfnGClipRect(0, 0, vid.width, vid.height, NZCLIP_PLANE);
}
// ==========================================================================
// FOG
// ==========================================================================
/// \author faB
static UINT32 atohex(const char *s)
{
INT32 iCol;
const char *sCol;
char cCol;
INT32 i;
if (strlen(s)<6)
return 0;
iCol = 0;
sCol = s;
for (i = 0; i < 6; i++, sCol++)
{
iCol <<= 4;
cCol = *sCol;
if (cCol >= '0' && cCol <= '9')
iCol |= cCol - '0';
else
{
if (cCol >= 'F')
cCol -= 'a' - 'A';
if (cCol >= 'A' && cCol <= 'F')
iCol = iCol | (cCol - 'A' + 10);
}
}
//CONS_Debug(DBG_RENDER, "col %x\n", iCol);
return iCol;
}
static void HWR_FoggingOn(void)
{
HWD.pfnSetSpecialState(HWD_SET_FOG_COLOR, atohex(cv_grfogcolor.string));
HWD.pfnSetSpecialState(HWD_SET_FOG_DENSITY, cv_grfogdensity.value);
HWD.pfnSetSpecialState(HWD_SET_FOG_MODE, 1);
}
// ==========================================================================
// 3D ENGINE COMMANDS
// ==========================================================================
static void CV_grFov_OnChange(void)
{
if ((netgame || multiplayer) && !cv_debug && cv_grfov.value != 90*FRACUNIT)
CV_Set(&cv_grfov, cv_grfov.defaultvalue);
}
static void Command_GrStats_f(void)
{
Z_CheckHeap(9875); // debug
CONS_Printf(M_GetText("Patch info headers: %7s kb\n"), sizeu1(Z_TagUsage(PU_HWRPATCHINFO)>>10));
CONS_Printf(M_GetText("3D Texture cache : %7s kb\n"), sizeu1(Z_TagUsage(PU_HWRCACHE)>>10));
CONS_Printf(M_GetText("Plane polygon : %7s kb\n"), sizeu1(Z_TagUsage(PU_HWRPLANE)>>10));
}
// **************************************************************************
// 3D ENGINE SETUP
// **************************************************************************
// --------------------------------------------------------------------------
// Add hardware engine commands & consvars
// --------------------------------------------------------------------------
//added by Hurdler: console varibale that are saved
void HWR_AddCommands(void)
{
CV_RegisterVar(&cv_grmd2);
CV_RegisterVar(&cv_grrounddown);
CV_RegisterVar(&cv_grfov);
CV_RegisterVar(&cv_grfogdensity);
CV_RegisterVar(&cv_grfiltermode);
CV_RegisterVar(&cv_granisotropicmode);
CV_RegisterVar(&cv_grcorrecttricks);
CV_RegisterVar(&cv_grsolvetjoin);
}
static inline void HWR_AddEngineCommands(void)
{
// engine state variables
//CV_RegisterVar(&cv_grzbuffer);
CV_RegisterVar(&cv_grclipwalls);
// engine development mode variables
// - usage may vary from version to version..
CV_RegisterVar(&cv_gralpha);
CV_RegisterVar(&cv_grbeta);
// engine commands
COM_AddCommand("gr_stats", Command_GrStats_f);
}
// --------------------------------------------------------------------------
// Setup the hardware renderer
// --------------------------------------------------------------------------
void HWR_Startup(void)
{
static boolean startupdone = false;
// setup GLPatch_t scaling
gr_patch_scalex = (float)(1.0f / vid.width);
gr_patch_scaley = (float)(1.0f / vid.height);
// initalze light lut translation
InitLumLut();
// do this once
if (!startupdone)
{
CONS_Printf("HWR_Startup()\n");
HWR_InitPolyPool();
// add console cmds & vars
HWR_AddEngineCommands();
HWR_InitTextureCache();
// for test water translucent surface
doomwaterflat = W_CheckNumForName("FWATER1");
if (doomwaterflat == LUMPERROR) // if FWATER1 not found (in doom shareware)
doomwaterflat = W_GetNumForName("WATER0");
HWR_InitMD2();
#ifdef ALAM_LIGHTING
HWR_InitLight();
#endif
}
if (rendermode == render_opengl)
textureformat = patchformat =
#ifdef _NDS
GR_TEXFMT_P_8;
#else
GR_RGBA;
#endif
startupdone = true;
}
// --------------------------------------------------------------------------
// Free resources allocated by the hardware renderer
// --------------------------------------------------------------------------
void HWR_Shutdown(void)
{
CONS_Printf("HWR_Shutdown()\n");
HWR_FreeExtraSubsectors();
HWR_FreePolyPool();
HWR_FreeTextureCache();
}
void transform(float *cx, float *cy, float *cz)
{
float tr_x,tr_y;
// translation
tr_x = *cx - gr_viewx;
tr_y = *cz - gr_viewy;
// *cy = *cy;
// rotation around vertical y axis
*cx = (tr_x * gr_viewsin) - (tr_y * gr_viewcos);
tr_x = (tr_x * gr_viewcos) + (tr_y * gr_viewsin);
//look up/down ----TOTAL SUCKS!!!--- do the 2 in one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
tr_y = *cy - gr_viewz;
*cy = (tr_x * gr_viewludcos) + (tr_y * gr_viewludsin);
*cz = (tr_x * gr_viewludsin) - (tr_y * gr_viewludcos);
//scale y before frustum so that frustum can be scaled to screen height
*cy *= ORIGINAL_ASPECT * gr_fovlud;
*cx *= gr_fovlud;
}
//Hurdler: 3D Water stuff
#define MAX_3DWATER 512
#ifndef SORTING
static void HWR_Add3DWater(lumpnum_t lumpnum, extrasubsector_t *xsub,
fixed_t fixedheight, INT32 lightlevel, INT32 alpha, sector_t *FOFSector)
{
static size_t allocedplanes = 0;
// Force realloc if buffer has been freed
if (!planeinfo)
allocedplanes = 0;
if (allocedplanes < numfloors + 1)
{
allocedplanes += MAX_3DWATER;
Z_Realloc(planeinfo, allocedplanes * sizeof (*planeinfo), PU_LEVEL, &planeinfo);
}
planeinfo[numfloors].fixedheight = fixedheight;
planeinfo[numfloors].lightlevel = lightlevel;
planeinfo[numfloors].lumpnum = lumpnum;
planeinfo[numfloors].xsub = xsub;
planeinfo[numfloors].alpha = alpha;
planeinfo[numfloors].FOFSector = FOFSector;
numfloors++;
}
#endif
#define DIST_PLANE(i) ABS(planeinfo[(i)].fixedheight-dup_viewz)
#if 0
static void HWR_QuickSortPlane(INT32 start, INT32 finish)
{
INT32 left = start;
INT32 right = finish;
INT32 starterval = (INT32)((right+left)/2); //pick a starter
planeinfo_t temp;
//'sort of sort' the two halves of the data list about starterval
while (right > left);
{
while (DIST_PLANE(left) < DIST_PLANE(starterval)) left++; //attempt to find a bigger value on the left
while (DIST_PLANE(right) > DIST_PLANE(starterval)) right--; //attempt to find a smaller value on the right
if (left < right) //if we haven't gone too far
{
//switch them
M_Memcpy(&temp, &planeinfo[left], sizeof (planeinfo_t));
M_Memcpy(&planeinfo[left], &planeinfo[right], sizeof (planeinfo_t));
M_Memcpy(&planeinfo[right], &temp, sizeof (planeinfo_t));
//move the bounds
left++;
right--;
}
}
if (start < right) HWR_QuickSortPlane(start, right);
if (left < finish) HWR_QuickSortPlane(left, finish);
}
#endif
#ifndef SORTING
static void HWR_Render3DWater(void)
{
size_t i;
//bubble sort 3D Water for correct alpha blending
{
boolean permut = true;
while (permut)
{
size_t j;
for (j = 0, permut= false; j < numfloors-1; j++)
{
if (ABS(planeinfo[j].fixedheight-dup_viewz) < ABS(planeinfo[j+1].fixedheight-dup_viewz))
{
planeinfo_t temp;
M_Memcpy(&temp, &planeinfo[j+1], sizeof (planeinfo_t));
M_Memcpy(&planeinfo[j+1], &planeinfo[j], sizeof (planeinfo_t));
M_Memcpy(&planeinfo[j], &temp, sizeof (planeinfo_t));
permut = true;
}
}
}
}
#if 0 //thanks epat, but it's goes looping forever on CTF map Silver Cascade Zone
HWR_QuickSortPlane(0, numplanes-1);
#endif
gr_frontsector = NULL; //Hurdler: gr_fronsector is no longer valid
for (i = 0; i < numfloors; i++)
{
HWR_GetFlat(planeinfo[i].lumpnum);
HWR_RenderPlane(NULL, planeinfo[i].xsub, planeinfo[i].fixedheight, PF_Translucent, planeinfo[i].lightlevel, planeinfo[i].lumpnum,
planeinfo[i].FOFSector, planeinfo[i].alpha, planeinfo[i].fogplane, planeinfo[i].planecolormap);
}
numfloors = 0;
}
#endif
static void HWR_AddTransparentWall(wallVert3D *wallVerts, FSurfaceInfo *pSurf, INT32 texnum, FBITFIELD blend, boolean fogwall, INT32 lightlevel, extracolormap_t *wallcolormap)
{
static size_t allocedwalls = 0;
// Force realloc if buffer has been freed
if (!wallinfo)
allocedwalls = 0;
if (allocedwalls < numwalls + 1)
{
allocedwalls += MAX_TRANSPARENTWALL;
Z_Realloc(wallinfo, allocedwalls * sizeof (*wallinfo), PU_LEVEL, &wallinfo);
}
M_Memcpy(wallinfo[numwalls].wallVerts, wallVerts, sizeof (wallinfo[numwalls].wallVerts));
M_Memcpy(&wallinfo[numwalls].Surf, pSurf, sizeof (FSurfaceInfo));
wallinfo[numwalls].texnum = texnum;
wallinfo[numwalls].blend = blend;
#ifdef SORTING
wallinfo[numwalls].drawcount = drawcount++;
#endif
wallinfo[numwalls].fogwall = fogwall;
wallinfo[numwalls].lightlevel = lightlevel;
wallinfo[numwalls].wallcolormap = wallcolormap;
numwalls++;
}
#ifndef SORTING
static void HWR_RenderTransparentWalls(void)
{
size_t i;
/*{ // sorting is disbale for now, do it!
INT32 permut = 1;
while (permut)
{
INT32 j;
for (j = 0, permut = 0; j < numwalls-1; j++)
{
if (ABS(wallinfo[j].fixedheight-dup_viewz) < ABS(wallinfo[j+1].fixedheight-dup_viewz))
{
wallinfo_t temp;
M_Memcpy(&temp, &wallinfo[j+1], sizeof (wallinfo_t));
M_Memcpy(&wallinfo[j+1], &wallinfo[j], sizeof (wallinfo_t));
M_Memcpy(&wallinfo[j], &temp, sizeof (wallinfo_t));
permut = 1;
}
}
}
}*/
for (i = 0; i < numwalls; i++)
{
HWR_GetTexture(wallinfo[i].texnum);
HWR_RenderWall(wallinfo[i].wallVerts, &wallinfo[i].Surf, wallinfo[i].blend, wallinfo[i].wall->fogwall, wallinfo[i].wall->lightlevel, wallinfo[i].wall->wallcolormap);
}
numwalls = 0;
}
#endif
static void HWR_RenderWall(wallVert3D *wallVerts, FSurfaceInfo *pSurf, FBITFIELD blend, boolean fogwall, INT32 lightlevel, extracolormap_t *wallcolormap)
{
FOutVector trVerts[4];
UINT8 i;
FOutVector *wv;
UINT8 alpha;
// transform
wv = trVerts;
// it sounds really stupid to do this conversion with the new T&L code
// we should directly put the right information in the right structure
// wallVerts3D seems ok, doesn't need FOutVector
// also remove the light copy
for (i = 0; i < 4; i++, wv++, wallVerts++)
{
wv->sow = wallVerts->s;
wv->tow = wallVerts->t;
wv->x = wallVerts->x;
wv->y = wallVerts->y;
wv->z = wallVerts->z;
}
alpha = pSurf->FlatColor.s.alpha; // retain the alpha
// Lighting is done here instead so that fog isn't drawn incorrectly on transparent walls after sorting
if (wallcolormap)
{
if (fogwall)
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
pSurf->FlatColor.rgba = HWR_Lighting(lightlevel, wallcolormap->rgba, wallcolormap->fadergba, true, false);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
else
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
pSurf->FlatColor.rgba = HWR_Lighting(lightlevel, wallcolormap->rgba, wallcolormap->fadergba, false, false);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
}
else
{
if (fogwall)
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
pSurf->FlatColor.rgba = HWR_Lighting(lightlevel, NORMALFOG, FADEFOG, true, false);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
else
LightLevelToLum gone LightLevelToLum unused by everything now, it seemed to be giving wrong values for lightlevels.
2014-03-24 16:11:25 +00:00
pSurf->FlatColor.rgba = HWR_Lighting(lightlevel, NORMALFOG, FADEFOG, false, false);
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
}
pSurf->FlatColor.s.alpha = alpha; // put the alpha back after lighting
if (blend & PF_Environment)
HWD.pfnDrawPolygon(pSurf, trVerts, 4, blend|PF_Modulated|PF_Clip|PF_Occlude); // PF_Occlude must be used for solid objects
else
HWD.pfnDrawPolygon(pSurf, trVerts, 4, blend|PF_Modulated|PF_Clip); // No PF_Occlude means overlapping (incorrect) transparency
#ifdef WALLSPLATS
if (gr_curline->linedef->splats && cv_splats.value)
HWR_DrawSegsSplats(pSurf);
#ifdef ALAM_LIGHTING
//Hurdler: TODO: do static lighting using gr_curline->lm
HWR_WallLighting(trVerts);
#endif
#endif
}
void HWR_SetPaletteColor(INT32 palcolor)
{
HWD.pfnSetSpecialState(HWD_SET_PALETTECOLOR, palcolor);
}
INT32 HWR_GetTextureUsed(void)
{
return HWD.pfnGetTextureUsed();
}
void HWR_DoPostProcessor(player_t *player)
{
// Armageddon Blast Flash!
// Could this even be considered postprocessor?
if (player->flashcount)
{
FOutVector v[4];
FSurfaceInfo Surf;
OpenGL Flashpal Flashes Fixed flashes for OpenGL Nukes/Teleports etc.
2014-03-23 00:04:35 +00:00
v[0].x = v[2].y = v[3].x = v[3].y = -4.0f;
v[0].y = v[1].x = v[1].y = v[2].x = 4.0f;
v[0].z = v[1].z = v[2].z = v[3].z = 4.0f; // 4.0 because of the same reason as with the sky, just after the screen is cleared so near clipping plane is 3.99
// This won't change if the flash palettes are changed unfortunately, but it works for its purpose
if (player->flashpal == PAL_NUKE)
{
Surf.FlatColor.s.red = 0xff;
Surf.FlatColor.s.green = Surf.FlatColor.s.blue = 0x7F; // The nuke palette is kind of pink-ish
}
else
Surf.FlatColor.s.red = Surf.FlatColor.s.green = Surf.FlatColor.s.blue = 0xff;
SRB2 2.1 release
2014-03-15 16:59:03 +00:00
Surf.FlatColor.s.alpha = 0xc0; // match software mode
HWD.pfnDrawPolygon(&Surf, v, 4, PF_Modulated|PF_Additive|PF_NoTexture|PF_NoDepthTest|PF_Clip|PF_NoZClip);
}
// Capture the screen for intermission and screen waving
if(gamestate != GS_INTERMISSION)
HWD.pfnMakeScreenTexture();
if (splitscreen) // Not supported in splitscreen - someone want to add support?
return;
#ifdef SHUFFLE
// Drunken vision! WooOOooo~
if (postimgtype == postimg_water || postimgtype == postimg_heat)
{
// 10 by 10 grid. 2 coordinates (xy)
float v[SCREENVERTS][SCREENVERTS][2];
static double disStart = 0;
UINT8 x, y;
INT32 WAVELENGTH;
INT32 AMPLITUDE;
INT32 FREQUENCY;
// Modifies the wave.
if (postimgtype == postimg_water)
{
WAVELENGTH = 20; // Lower is longer
AMPLITUDE = 20; // Lower is bigger
FREQUENCY = 16; // Lower is faster
}
else
{
WAVELENGTH = 10; // Lower is longer
AMPLITUDE = 30; // Lower is bigger
FREQUENCY = 4; // Lower is faster
}
for (x = 0; x < SCREENVERTS; x++)
{
for (y = 0; y < SCREENVERTS; y++)
{
// Change X position based on its Y position.
v[x][y][0] = (x/((float)(SCREENVERTS-1.0f)/9.0f))-4.5f + (float)sin((disStart+(y*WAVELENGTH))/FREQUENCY)/AMPLITUDE;
v[x][y][1] = (y/((float)(SCREENVERTS-1.0f)/9.0f))-4.5f;
}
}
HWD.pfnPostImgRedraw(v);
disStart += 1;
}
else if (postimgtype == postimg_flip) //We like our screens inverted.
{
// 10 by 10 grid. 2 coordinates (xy)
float v[SCREENVERTS][SCREENVERTS][2];
UINT8 x, y;
UINT8 flipy;
for (x = 0; x < SCREENVERTS; x++)
{
for (y = 0, flipy = SCREENVERTS; y < SCREENVERTS; y++, flipy--)
{
// Flip the screen.
v[x][y][0] = (x/((float)(SCREENVERTS-1.0f)/9.0f))-4.5f;
v[x][y][1] = (flipy/((float)(SCREENVERTS-1.0f)/9.0f))-5.5f;
}
}
HWD.pfnPostImgRedraw(v);
}
#endif // SHUFFLE
}
void HWR_StartScreenWipe(void)
{
//CONS_Debug(DBG_RENDER, "In HWR_StartScreenWipe()\n");
HWD.pfnStartScreenWipe();
}
void HWR_EndScreenWipe(void)
{
HWRWipeCounter = 1.0f;
//CONS_Debug(DBG_RENDER, "In HWR_EndScreenWipe()\n");
HWD.pfnEndScreenWipe();
}
// Prepare the screen for fading to black.
void HWR_PrepFadeToBlack(void)
{
FOutVector v[4];
INT32 flags;
FSurfaceInfo Surf;
v[0].x = v[2].y = v[3].x = v[3].y = -1.0f;
v[0].y = v[1].x = v[1].y = v[2].x = 1.0f;
v[0].z = v[1].z = v[2].z = v[3].z = 1.0f;
flags = PF_Modulated | PF_Clip | PF_NoZClip | PF_NoDepthTest | PF_NoTexture;
Surf.FlatColor.s.red = Surf.FlatColor.s.green = Surf.FlatColor.s.blue = 0x00;
Surf.FlatColor.s.alpha = 0xff;
HWD.pfnDrawPolygon(&Surf, v, 4, flags);
}
void HWR_DrawIntermissionBG(void)
{
HWD.pfnDrawIntermissionBG();
}
void HWR_DoScreenWipe(void)
{
HWRWipeCounter -= 0.035f;
//CONS_Debug(DBG_RENDER, "In HWR_DoScreenWipe(). Alpha =%f\n", HWRWipeCounter);
HWD.pfnDoScreenWipe(HWRWipeCounter);
I_OsPolling();
I_FinishUpdate();
}
#endif // HWRENDER
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