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blankart/src/hardware/hw_main.c

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// BLANKART
//-----------------------------------------------------------------------------
// Copyright (C) 1998-2000 by DooM Legacy Team.
// Copyright (C) 1999-2020 by Sonic Team Junior.
//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
// See the 'LICENSE' file for more details.
//-----------------------------------------------------------------------------
/// \file hw_main.c
/// \brief hardware renderer, using the standard HardWareRender driver DLL for SRB2
#include <math.h>
#include "../doomstat.h"
#include "../qs22j.h"
#ifdef HWRENDER
#include "hw_clip.h"
#include "hw_glob.h"
#include "hw_light.h"
#include "hw_drv.h"
#include "hw_batching.h"
#include "../i_video.h" // for rendermode == render_glide
#include "../v_video.h"
#include "../p_local.h"
#include "../p_setup.h"
#include "../r_fps.h"
#include "../r_local.h"
#include "../r_patch.h"
#include "../r_picformats.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 "../f_finale.h"
#include "../r_things.h" // R_GetShadowZ
#include "../d_main.h"
#include "../p_slopes.h"
#include "hw_md2.h"
// SRB2Kart
#include "../k_kart.h"
#include "../r_fps.h"
#include "../r_plane.h" // R_FlatDimensionsFromLumpSize
#include "../k_items.h"
#define R_FAKEFLOORS
#define HWPRECIP
// ==========================================================================
// 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_AddPrecipitationSprites(void);
static void HWR_ProjectPrecipitationSprite(precipmobj_t *thing);
#endif
static void HWR_ProjectBoundingBox(mobj_t *thing);
static void HWR_RollTransform(FTransform *tr, angle_t roll);
void HWR_AddTransparentFloor(levelflat_t *levelflat, extrasubsector_t *xsub, boolean isceiling, fixed_t fixedheight, INT32 lightlevel, INT32 alpha, sector_t *FOFSector, FBITFIELD blend, boolean fogplane, extracolormap_t *planecolormap);
void HWR_AddTransparentPolyobjectFloor(levelflat_t *levelflat, polyobj_t *polysector, boolean isceiling, fixed_t fixedheight,
INT32 lightlevel, INT32 alpha, sector_t *FOFSector, FBITFIELD blend, extracolormap_t *planecolormap);
// ==========================================================================
// VIEW GLOBALS
// ==========================================================================
// Fineangles in the SCREENWIDTH wide window.
#define FIELDOFVIEW ANGLE_90
#define ABS(x) ((x) < 0 ? -(x) : (x))
static angle_t gl_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 gl_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 gl_xtoviewangle[MAXVIDWIDTH+1];
// ==========================================================================
// GLOBALS
// ==========================================================================
// uncomment to remove the plane rendering
#define DOPLANES
//#define DOWALLS
// test change fov when looking up/down but bsp projection messup :(
//#define NOCRAPPYMLOOK
// base values set at SetViewSize
static float gl_basecentery;
static float gl_basecenterx;
float gl_baseviewwindowy, gl_basewindowcentery;
float gl_baseviewwindowx, gl_basewindowcenterx;
float gl_viewwidth, gl_viewheight; // viewport clipping boundaries (screen coords)
float gl_viewwindowx;
static float gl_centerx, gl_centery;
static float gl_viewwindowy; // top left corner of view window
static float gl_windowcenterx; // center of view window, for projection
static float gl_windowcentery;
static float gl_pspritexscale, gl_pspriteyscale;
static seg_t *gl_curline;
static side_t *gl_sidedef;
static line_t *gl_linedef;
static sector_t *gl_frontsector;
static sector_t *gl_backsector;
// Render stats
precise_t ps_hw_skyboxtime = 0;
precise_t ps_hw_nodesorttime = 0;
precise_t ps_hw_nodedrawtime = 0;
precise_t ps_hw_spritesorttime = 0;
precise_t ps_hw_spritedrawtime = 0;
// Render stats for batching
int ps_hw_numpolys = 0;
int ps_hw_numverts = 0;
int ps_hw_numcalls = 0;
int ps_hw_numshaders = 0;
int ps_hw_numtextures = 0;
int ps_hw_numpolyflags = 0;
int ps_hw_numcolors = 0;
precise_t ps_hw_batchsorttime = 0;
precise_t ps_hw_batchdrawtime = 0;
boolean gl_init = false;
boolean gl_maploaded = false;
boolean gl_sessioncommandsadded = false;
// false if shaders have not been initialized yet, or if shaders are not available
boolean gl_shadersavailable = false;
// Whether the internal state is set to palette rendering or not.
static boolean gl_palette_rendering_state = false;
// --------------------------------------------------------------------------
// 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 gl_viewx, gl_viewy, gl_viewz;
float gl_viewsin, gl_viewcos;
// Maybe not necessary with the new T&L code (needs to be checked!)
static float gl_viewludsin, gl_viewludcos; // look up down kik test
static float gl_fovlud;
static angle_t gl_aimingangle;
static void HWR_SetTransformAiming(FTransform *trans, player_t *player, boolean skybox);
// ==========================================================================
// Lighting
// ==========================================================================
// Returns true if shaders can be used.
boolean HWR_UseShader(void)
{
return (cv_glshaders.value && gl_shadersavailable);
}
boolean HWR_OverrideObjectLightLevel(mobj_t *thing, INT32 *lightlevel)
{
if (R_ThingIsFullBright(thing))
*lightlevel = 255;
else if (R_ThingIsFullDark(thing))
*lightlevel = 0;
else if (thing->renderflags & RF_ABSOLUTELIGHTLEVEL)
*lightlevel = R_ThingLightLevel(thing);
else
return false;
return true;
}
void HWR_ObjectLightLevelPost(gl_vissprite_t *spr, const sector_t *sector, INT32 *lightlevel, boolean model)
{
const boolean semibright = R_ThingIsSemiBright(spr->mobj);
const boolean papersprite = R_ThingIsPaperSprite(spr->mobj);
*lightlevel += R_ThingLightLevel(spr->mobj);
if (maplighting.directional == true && P_SectorUsesDirectionalLighting(sector))
{
if (model == false) // this is implemented by shader
{
fixed_t extralight = R_GetSpriteDirectionalLighting(
papersprite
? spr->angle + (spr->flip ? -ANGLE_90 : ANGLE_90)
: R_PointToAngle(spr->mobj->x, spr->mobj->y) // fixme
);
// Less change in contrast in dark sectors
extralight = FixedMul(extralight, min(max(0, *lightlevel), 255) * FRACUNIT / 255);
if (papersprite)
{
// Papersprite contrast should match walls
*lightlevel += FixedFloor(extralight + (FRACUNIT / 2)) / FRACUNIT;
}
else
{
// simple OGL approximation
fixed_t tr = R_PointToDist(spr->mobj->x, spr->mobj->y);
fixed_t xscale = FixedDiv((vid.width / 2) << FRACBITS, tr);
// Less change in contrast at further distances, to counteract DOOM diminished light
fixed_t n = FixedDiv(FixedMul(xscale, LIGHTRESOLUTIONFIX), ((MAXLIGHTSCALE-1) << LIGHTSCALESHIFT));
extralight = FixedMul(extralight, min(n, FRACUNIT));
// Contrast is stronger for normal sprites, stronger than wall lighting is at the same distance
*lightlevel += FixedFloor((extralight * 2) + (FRACUNIT / 2)) / FRACUNIT;
}
}
// Semibright objects will be made slightly brighter to compensate contrast
if (semibright)
{
*lightlevel += 16;
}
}
if (semibright)
{
*lightlevel = 192 + (*lightlevel >> 1);
}
}
void HWR_Lighting(FSurfaceInfo *Surface, INT32 light_level, extracolormap_t *colormap, const boolean directional)
{
RGBA_t poly_color, tint_color, fade_color;
poly_color.rgba = 0xFFFFFFFF;
tint_color.rgba = (colormap != NULL) ? (UINT32)colormap->rgba : GL_DEFAULTMIX;
fade_color.rgba = (colormap != NULL) ? (UINT32)colormap->fadergba : GL_DEFAULTFOG;
// Crappy backup coloring if you can't do shaders
if (!HWR_UseShader())
{
// be careful, this may get negative for high lightlevel values.
float tint_alpha, fade_alpha;
float red, green, blue;
red = (float)poly_color.s.red;
green = (float)poly_color.s.green;
blue = (float)poly_color.s.blue;
// 48 is just an arbritrary value that looked relatively okay.
tint_alpha = (float)(sqrt(tint_color.s.alpha) * 48) / 255.0f;
// 8 is roughly the brightness of the "close" color in Software, and 16 the brightness of the "far" color.
// 8 is too bright for dark levels, and 16 is too dark for bright levels.
// 12 is the compromise value. It doesn't look especially good anywhere, but it's the most balanced.
// (Also, as far as I can tell, fade_color's alpha is actually not used in Software, so we only use light level.)
fade_alpha = (float)(sqrt(255-light_level) * 12) / 255.0f;
// Clamp the alpha values
tint_alpha = min(max(tint_alpha, 0.0f), 1.0f);
fade_alpha = min(max(fade_alpha, 0.0f), 1.0f);
red = (tint_color.s.red * tint_alpha) + (red * (1.0f - tint_alpha));
green = (tint_color.s.green * tint_alpha) + (green * (1.0f - tint_alpha));
blue = (tint_color.s.blue * tint_alpha) + (blue * (1.0f - tint_alpha));
red = (fade_color.s.red * fade_alpha) + (red * (1.0f - fade_alpha));
green = (fade_color.s.green * fade_alpha) + (green * (1.0f - fade_alpha));
blue = (fade_color.s.blue * fade_alpha) + (blue * (1.0f - fade_alpha));
poly_color.s.red = (UINT8)red;
poly_color.s.green = (UINT8)green;
poly_color.s.blue = (UINT8)blue;
}
// Shift the lightlevel for Palette rendering mode to replicate software´s limited 32 lightlevels
if (HWR_ShouldUsePaletteRendering())
light_level = (light_level >> LIGHTSEGSHIFT) << LIGHTSEGSHIFT;
// Clamp the light level, since it can sometimes go out of the 0-255 range from animations
light_level = min(max(light_level, cv_secbright.value), 255);
V_CubeApply(&tint_color.s.red, &tint_color.s.green, &tint_color.s.blue);
V_CubeApply(&fade_color.s.red, &fade_color.s.green, &fade_color.s.blue);
Surface->PolyColor.rgba = poly_color.rgba;
Surface->TintColor.rgba = tint_color.rgba;
Surface->FadeColor.rgba = fade_color.rgba;
Surface->LightInfo.light_level = light_level;
Surface->LightInfo.fade_start = (colormap != NULL) ? colormap->fadestart : 0;
Surface->LightInfo.fade_end = (colormap != NULL) ? colormap->fadeend : 31;
Surface->LightInfo.newfade = (colormap != NULL) ? !!(colormap->flags & CMF_NEWFADE) : false;
Surface->LightInfo.directional = (maplighting.directional == true && directional == true);
if (HWR_ShouldUsePaletteRendering())
Surface->LightTableId = HWR_GetLightTableID(colormap);
else
Surface->LightTableId = 0;
}
UINT8 HWR_FogBlockAlpha(INT32 light, extracolormap_t *colormap) // Let's see if this can work
{
RGBA_t realcolor, surfcolor;
INT32 alpha;
realcolor.rgba = (colormap != NULL) ? colormap->rgba : GL_DEFAULTMIX;
if (cv_glshaders.value && gl_shadersavailable)
{
surfcolor.s.alpha = (255 - light);
}
else
{
light = light - (255 - light);
// Don't go out of bounds
if (light < 0)
light = 0;
else if (light > 255)
light = 255;
alpha = (realcolor.s.alpha*255)/25;
// at 255 brightness, alpha is between 0 and 127, at 0 brightness alpha will always be 255
surfcolor.s.alpha = (alpha*light) / (2*256) + 255-light;
}
return surfcolor.s.alpha;
}
static FUINT HWR_CalcWallLight(FUINT lightnum, seg_t *seg)
{
INT16 finallight = lightnum;
if (seg != NULL && P_ApplyLightOffsetFine(lightnum, seg->frontsector))
{
finallight += seg->hwLightOffset;
if (finallight > 255) finallight = 255;
if (finallight < 0) finallight = 0;
}
return (FUINT)finallight;
}
static FUINT HWR_CalcSlopeLight(FUINT lightnum, pslope_t *slope, const sector_t *sector, const boolean fof)
{
INT16 finallight = lightnum;
if (slope != NULL && sector != NULL && P_ApplyLightOffsetFine(lightnum, sector))
{
finallight += (fof ? -slope->hwLightOffset : slope->hwLightOffset);
if (finallight > 255) finallight = 255;
if (finallight < 0) finallight = 0;
}
return (FUINT)finallight;
}
// ==========================================================================
// FLOOR/CEILING GENERATION FROM SUBSECTORS
// ==========================================================================
#ifdef DOPLANES
// -----------------+
// HWR_RenderPlane : Render a floor or ceiling convex polygon
// -----------------+
static void HWR_RenderPlane(subsector_t *subsector, extrasubsector_t *xsub, boolean isceiling, fixed_t fixedheight, FBITFIELD PolyFlags, INT32 lightlevel, levelflat_t *levelflat, sector_t *FOFsector, UINT8 alpha, 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 fflatwidth = 64.0f, fflatheight = 64.0f;
float scrollx = 0.0f, scrolly = 0.0f, anglef = 0.0f;
angle_t angle = 0;
FSurfaceInfo Surf;
float tempxsow, tempytow;
pslope_t *slope = NULL;
static FOutVector *planeVerts = NULL;
static UINT16 numAllocedPlaneVerts = 0;
INT32 shader = SHADER_NONE;
// no convex poly were generated for this subsector
if (!xsub->planepoly)
return;
// Get the slope pointer to simplify future code
if (FOFsector)
{
if (FOFsector->f_slope && !isceiling)
slope = FOFsector->f_slope;
else if (FOFsector->c_slope && isceiling)
slope = FOFsector->c_slope;
}
else
{
if (gl_frontsector->f_slope && !isceiling)
slope = gl_frontsector->f_slope;
else if (gl_frontsector->c_slope && isceiling)
slope = gl_frontsector->c_slope;
}
// Set fixedheight to the slope's height from our viewpoint, if we have a slope
if (slope)
fixedheight = P_GetSlopeZAt(slope, viewx, viewy);
height = FIXED_TO_FLOAT(fixedheight);
pv = xsub->planepoly->pts;
nrPlaneVerts = xsub->planepoly->numpts;
if (nrPlaneVerts < 3) //not even a triangle ?
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);
}
// set texture for polygon
if (levelflat != NULL)
{
texture_t *texture = textures[R_GetTextureNumForFlat(levelflat)];
fflatwidth = texture->width;
fflatheight = texture->height;
}
else // set no texture
HWR_SetCurrentTexture(NULL);
// reference point for flat texture coord for each vertex around the polygon
flatxref = 0.0;
flatyref = 0.0;
// transform
if (FOFsector != NULL)
{
if (!isceiling) // it's a floor
{
scrollx = FIXED_TO_FLOAT(FOFsector->floor_xoffs)/fflatwidth;
scrolly = FIXED_TO_FLOAT(FOFsector->floor_yoffs)/fflatheight;
angle = FOFsector->floorpic_angle;
}
else // it's a ceiling
{
scrollx = FIXED_TO_FLOAT(FOFsector->ceiling_xoffs)/fflatwidth;
scrolly = FIXED_TO_FLOAT(FOFsector->ceiling_yoffs)/fflatheight;
angle = FOFsector->ceilingpic_angle;
}
}
else if (gl_frontsector)
{
if (!isceiling) // it's a floor
{
scrollx = FIXED_TO_FLOAT(gl_frontsector->floor_xoffs)/fflatwidth;
scrolly = FIXED_TO_FLOAT(gl_frontsector->floor_yoffs)/fflatheight;
angle = gl_frontsector->floorpic_angle;
}
else // it's a ceiling
{
scrollx = FIXED_TO_FLOAT(gl_frontsector->ceiling_xoffs)/fflatwidth;
scrolly = FIXED_TO_FLOAT(gl_frontsector->ceiling_yoffs)/fflatheight;
angle = gl_frontsector->ceilingpic_angle;
}
}
anglef = ANG2RAD(InvAngle(angle));
#define SETUP3DVERT(vert, vx, vy) {\
/* Hurdler: add scrolling texture on floor/ceiling */ \
vert->s = (float)(((vx) / fflatwidth) - flatxref + scrollx);\
vert->t = (float)(flatyref - ((vy) / fflatheight) + scrolly);\
\
/* Need to rotate before translate */\
if (angle) /* Only needs to be done if there's an altered angle */\
{\
tempxsow = vert->s;\
tempytow = vert->t;\
vert->s = (tempxsow * cos(anglef)) - (tempytow * sin(anglef));\
vert->t = (tempxsow * sin(anglef)) + (tempytow * cos(anglef));\
}\
\
vert->x = (vx);\
vert->y = height;\
vert->z = (vy);\
\
if (slope)\
{\
fixedheight = P_GetSlopeZAt(slope, FLOAT_TO_FIXED((vx)), FLOAT_TO_FIXED((vy)));\
vert->y = FIXED_TO_FLOAT(fixedheight);\
}\
}
for (i = 0, v3d = planeVerts; i < nrPlaneVerts; i++,v3d++,pv++)
SETUP3DVERT(v3d, pv->x, pv->y);
lightlevel = HWR_CalcSlopeLight(lightlevel, slope, gl_frontsector, (FOFsector != NULL));
HWR_Lighting(&Surf, lightlevel, planecolormap, P_SectorUsesDirectionalLighting(gl_frontsector));
if (PolyFlags & PF_EnvironmentTrans)
{
Surf.PolyColor.s.alpha = (UINT8)alpha;
PolyFlags |= PF_Modulated;
}
else
PolyFlags |= PF_Masked|PF_Modulated;
if (HWR_UseShader())
{
if (PolyFlags & PF_Fog)
shader = SHADER_FOG;
else if ((PolyFlags & PF_Ripple) && levelflat != NULL && levelflat->type == LEVELFLAT_TEXTURE && R_GetTextureBrightmap(levelflat->texture_id) && HWR_ShouldUsePaletteRendering())
shader = SHADER_BRIGHTMAP_WATER;
else if (PolyFlags & PF_Ripple)
shader = SHADER_WATER;
else if (levelflat != NULL && levelflat->type == LEVELFLAT_TEXTURE && R_GetTextureBrightmap(levelflat->texture_id) && HWR_ShouldUsePaletteRendering())
shader = SHADER_BRIGHTMAP_FLOOR;
else
shader = SHADER_FLOOR;
PolyFlags |= PF_ColorMapped;
}
HWR_ProcessPolygon(&Surf, planeVerts, nrPlaneVerts, PolyFlags, shader, false);
if (subsector)
{
// Horizon lines
FOutVector horizonpts[6];
float dist, vx, vy;
float x1, y1, xd, yd;
UINT8 numplanes, j;
vertex_t v; // For determining the closest distance from the line to the camera, to split render planes for minimum distortion;
const float renderdist = 27000.0f; // How far out to properly render the plane
const float farrenderdist = 32768.0f; // From here, raise plane to horizon level to fill in the line with some texture distortion
seg_t *line = &segs[subsector->firstline];
for (i = 0; i < subsector->numlines; i++, line++)
{
if (!line->glseg && line->linedef->special == HORIZONSPECIAL && R_PointOnSegSide(dup_viewx, dup_viewy, line) == 0)
{
P_ClosestPointOnLine(viewx, viewy, line->linedef, &v);
dist = FIXED_TO_FLOAT(R_PointToDist(v.x, v.y));
if (line->pv1)
{
x1 = ((polyvertex_t *)line->pv1)->x;
y1 = ((polyvertex_t *)line->pv1)->y;
}
else
{
x1 = FIXED_TO_FLOAT(line->v1->x);
y1 = FIXED_TO_FLOAT(line->v1->x);
}
if (line->pv2)
{
xd = ((polyvertex_t *)line->pv2)->x - x1;
yd = ((polyvertex_t *)line->pv2)->y - y1;
}
else
{
xd = FIXED_TO_FLOAT(line->v2->x) - x1;
yd = FIXED_TO_FLOAT(line->v2->y) - y1;
}
// Based on the seg length and the distance from the line, split horizon into multiple poly sets to reduce distortion
dist = sqrtf((xd*xd) + (yd*yd)) / dist / 16.0f;
if (dist > 100.0f)
numplanes = 100;
else
numplanes = (UINT8)dist + 1;
for (j = 0; j < numplanes; j++)
{
// Left side
vx = x1 + xd * j / numplanes;
vy = y1 + yd * j / numplanes;
SETUP3DVERT((&horizonpts[1]), vx, vy);
dist = sqrtf(powf(vx - gl_viewx, 2) + powf(vy - gl_viewy, 2));
vx = (vx - gl_viewx) * renderdist / dist + gl_viewx;
vy = (vy - gl_viewy) * renderdist / dist + gl_viewy;
SETUP3DVERT((&horizonpts[0]), vx, vy);
// Right side
vx = x1 + xd * (j+1) / numplanes;
vy = y1 + yd * (j+1) / numplanes;
SETUP3DVERT((&horizonpts[2]), vx, vy);
dist = sqrtf(powf(vx - gl_viewx, 2) + powf(vy - gl_viewy, 2));
vx = (vx - gl_viewx) * renderdist / dist + gl_viewx;
vy = (vy - gl_viewy) * renderdist / dist + gl_viewy;
SETUP3DVERT((&horizonpts[3]), vx, vy);
// Horizon fills
vx = (horizonpts[0].x - gl_viewx) * farrenderdist / renderdist + gl_viewx;
vy = (horizonpts[0].z - gl_viewy) * farrenderdist / renderdist + gl_viewy;
SETUP3DVERT((&horizonpts[5]), vx, vy);
horizonpts[5].y = gl_viewz;
vx = (horizonpts[3].x - gl_viewx) * farrenderdist / renderdist + gl_viewx;
vy = (horizonpts[3].z - gl_viewy) * farrenderdist / renderdist + gl_viewy;
SETUP3DVERT((&horizonpts[4]), vx, vy);
horizonpts[4].y = gl_viewz;
// Draw
HWR_ProcessPolygon(&Surf, horizonpts, 6, PolyFlags, shader, true);
}
}
}
}
#ifdef ALAM_LIGHTING
// add here code for dynamic lighting on planes
HWR_PlaneLighting(planeVerts, nrPlaneVerts);
#endif
}
#endif //doplanes
FBITFIELD HWR_GetBlendModeFlag(INT32 ast)
{
switch (ast)
{
//case AST_COPY: -- intentionally defaults to translucent
case AST_OVERLAY:
return PF_Masked;
case AST_ADD:
return PF_Additive;
case AST_SUBTRACT:
return PF_ReverseSubtract;
case AST_REVERSESUBTRACT:
return PF_Subtractive;
case AST_MODULATE:
return PF_Multiplicative;
default:
return PF_Translucent;
}
return 0;
}
UINT8 HWR_GetTranstableAlpha(INT32 transtablenum)
{
transtablenum = max(min(transtablenum, tr_trans90), 0);
switch (transtablenum)
{
case 0 : return 0xff;
case tr_trans10 : return 0xe6;
case tr_trans20 : return 0xcc;
case tr_trans30 : return 0xb3;
case tr_trans40 : return 0x99;
case tr_trans50 : return 0x80;
case tr_trans60 : return 0x66;
case tr_trans70 : return 0x4c;
case tr_trans80 : return 0x33;
case tr_trans90 : return 0x19;
}
return 0xff;
}
FBITFIELD HWR_SurfaceBlend(INT32 style, INT32 transtablenum, FSurfaceInfo *pSurf)
{
pSurf->PolyColor.s.alpha = 0xff;
if (style == AST_MODULATE)
return PF_Multiplicative;
if (!transtablenum && !style)
return PF_Masked;
pSurf->PolyColor.s.alpha = HWR_GetTranstableAlpha(transtablenum);
return HWR_GetBlendModeFlag(style);
}
FBITFIELD HWR_TranstableToAlpha(INT32 transtablenum, FSurfaceInfo *pSurf)
{
if (!transtablenum)
{
pSurf->PolyColor.s.alpha = 0x00;
return PF_Masked;
}
pSurf->PolyColor.s.alpha = HWR_GetTranstableAlpha(transtablenum);
return PF_Translucent;
}
static void HWR_AddTransparentWall(FOutVector *wallVerts, FSurfaceInfo *pSurf, INT32 texnum, boolean noencore, FBITFIELD blend, boolean fogwall, INT32 lightlevel, extracolormap_t *wallcolormap);
// ==========================================================================
// Wall generation from subsector segs
// ==========================================================================
/*
wallVerts order is :
3--2
| /|
|/ |
0--1
*/
//
// HWR_ProjectWall
//
static void HWR_ProjectWall(FOutVector *wallVerts, FSurfaceInfo *pSurf, FBITFIELD blendmode, INT32 lightlevel, extracolormap_t *wallcolormap, INT32 texnum)
{
INT32 shader = SHADER_NONE;
HWR_Lighting(pSurf, lightlevel, wallcolormap, P_SectorUsesDirectionalLighting(gl_frontsector));
if (HWR_UseShader())
{
if (R_GetTextureBrightmap(texnum) && HWR_ShouldUsePaletteRendering())
shader = SHADER_BRIGHTMAP_WALL;
else
shader = SHADER_WALL;
blendmode |= PF_ColorMapped;
}
HWR_ProcessPolygon(pSurf, wallVerts, 4, blendmode|PF_Modulated|PF_Occlude, shader, false);
}
// ==========================================================================
// BSP, CULL, ETC..
// ==========================================================================
//
// HWR_SplitWall
// 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
//
static void HWR_SplitWall(sector_t *sector, FOutVector *wallVerts, INT32 texnum, boolean noencore, FSurfaceInfo* Surf, INT32 cutflag, ffloor_t *pfloor, FBITFIELD polyflags)
{
float realtop, realbot, top, bot;
float pegt, pegb, pegmul;
float height = 0.0f, bheight = 0.0f;
float endrealtop, endrealbot, endtop, endbot;
float endpegt, endpegb, endpegmul;
float endheight = 0.0f, endbheight = 0.0f;
float diff;
fixed_t v1x = FloatToFixed(wallVerts[0].x);
fixed_t v1y = FloatToFixed(wallVerts[0].z);
fixed_t v2x = FloatToFixed(wallVerts[1].x);
fixed_t v2y = FloatToFixed(wallVerts[1].z);
const UINT8 alpha = Surf->PolyColor.s.alpha;
FUINT lightnum = sector->lightlevel;
extracolormap_t *colormap = NULL;
realtop = top = wallVerts[3].y;
realbot = bot = wallVerts[0].y;
diff = top - bot;
pegt = wallVerts[3].t;
pegb = wallVerts[0].t;
// Lactozilla: If both heights of a side lay on the same position, then this wall is a triangle.
// To avoid division by zero, which would result in a NaN, we check if the vertical difference
// between the two vertices is not zero.
if (fpclassify(diff) == FP_ZERO)
pegmul = 0.0;
else
pegmul = (pegb - pegt) / diff;
endrealtop = endtop = wallVerts[2].y;
endrealbot = endbot = wallVerts[1].y;
diff = endtop - endbot;
endpegt = wallVerts[2].t;
endpegb = wallVerts[1].t;
if (fpclassify(diff) == FP_ZERO)
endpegmul = 0.0;
else
endpegmul = (endpegb - endpegt) / diff;
for (INT32 i = 0; i < sector->numlights; i++)
{
if (endtop < endrealbot && top < realbot)
return;
lightlist_t *list = sector->lightlist;
if (!(list[i].flags & FOF_NOSHADE))
{
if (pfloor && (pfloor->fofflags & FOF_FOG))
{
lightnum = pfloor->master->frontsector->lightlevel;
colormap = pfloor->master->frontsector->extra_colormap;
}
else
{
lightnum = *list[i].lightlevel;
colormap = *list[i].extra_colormap;
}
}
boolean solid = false;
if ((sector->lightlist[i].flags & FOF_CUTSOLIDS) && !(cutflag & FOF_EXTRA))
solid = true;
else if ((sector->lightlist[i].flags & FOF_CUTEXTRA) && (cutflag & FOF_EXTRA))
{
if (sector->lightlist[i].flags & FOF_EXTRA)
{
if ((sector->lightlist[i].flags & (FOF_FOG|FOF_SWIMMABLE)) == (cutflag & (FOF_FOG|FOF_SWIMMABLE))) // Only merge with your own types
solid = true;
}
else
solid = true;
}
else
solid = false;
height = FixedToFloat(P_GetLightZAt(&list[i], v1x, v1y));
endheight = FixedToFloat(P_GetLightZAt(&list[i], v2x, v2y));
if (solid)
{
bheight = FixedToFloat(P_GetFFloorBottomZAt(list[i].caster, v1x, v1y));
endbheight = FixedToFloat(P_GetFFloorBottomZAt(list[i].caster, v2x, v2y));
}
if (endheight >= endtop && height >= top)
{
if (solid && top > bheight)
top = bheight;
if (solid && endtop > endbheight)
endtop = endbheight;
}
if (i + 1 < sector->numlights)
{
bheight = FixedToFloat(P_GetLightZAt(&list[i+1], v1x, v1y));
endbheight = FixedToFloat(P_GetLightZAt(&list[i+1], v2x, v2y));
}
else
{
bheight = realbot;
endbheight = endrealbot;
}
if (endbheight > endtop)
endbot = endtop;
if (bheight >= top)
continue;
// Found a break
// The heights are clamped to ensure the polygon doesn't cross itself.
bot = bheight;
if (bot < realbot)
bot = realbot;
endbot = min(max(endbheight, endrealbot), endtop);
Surf->PolyColor.s.alpha = alpha;
wallVerts[3].t = pegt + ((realtop - top) * pegmul);
wallVerts[2].t = endpegt + ((endrealtop - endtop) * endpegmul);
wallVerts[0].t = pegt + ((realtop - bot) * pegmul);
wallVerts[1].t = endpegt + ((endrealtop - endbot) * endpegmul);
// set top/bottom coords
wallVerts[3].y = top;
wallVerts[2].y = endtop;
wallVerts[0].y = bot;
wallVerts[1].y = endbot;
if (polyflags & PF_Fog)
HWR_AddTransparentWall(wallVerts, Surf, texnum, noencore, polyflags, true, HWR_CalcWallLight(lightnum, gl_curline), colormap);
else if (polyflags & PF_EnvironmentTrans)
HWR_AddTransparentWall(wallVerts, Surf, texnum, noencore, polyflags, false, HWR_CalcWallLight(lightnum, gl_curline), colormap);
else
HWR_ProjectWall(wallVerts, Surf, polyflags, HWR_CalcWallLight(lightnum, gl_curline), colormap, texnum);
top = bot;
endtop = endbot;
}
bot = realbot;
endbot = endrealbot;
if (endtop <= endrealbot && top <= realbot)
return;
Surf->PolyColor.s.alpha = alpha;
wallVerts[3].t = pegt + ((realtop - top) * pegmul);
wallVerts[2].t = endpegt + ((endrealtop - endtop) * endpegmul);
wallVerts[0].t = pegt + ((realtop - bot) * pegmul);
wallVerts[1].t = endpegt + ((endrealtop - endbot) * endpegmul);
// set top/bottom coords
wallVerts[3].y = top;
wallVerts[2].y = endtop;
wallVerts[0].y = bot;
wallVerts[1].y = endbot;
if (polyflags & PF_Fog)
HWR_AddTransparentWall(wallVerts, Surf, texnum, noencore, polyflags, true, HWR_CalcWallLight(lightnum, gl_curline), colormap);
else if (polyflags & PF_EnvironmentTrans)
HWR_AddTransparentWall(wallVerts, Surf, texnum, noencore, polyflags, false, HWR_CalcWallLight(lightnum, gl_curline), colormap);
else
HWR_ProjectWall(wallVerts, Surf, polyflags, HWR_CalcWallLight(lightnum, gl_curline), colormap, texnum);
}
// HWR_DrawSkyWall
// Draw walls into the depth buffer so that anything behind is culled properly
static void HWR_DrawSkyWall(FOutVector *wallVerts, FSurfaceInfo *Surf)
{
HWR_SetCurrentTexture(NULL);
// no texture
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;
// this no longer sets top/bottom coords, this should be done before caling the function
HWR_ProjectWall(wallVerts, Surf, PF_Invisible|PF_NoTexture, 255, NULL, 0);
// PF_Invisible so it's not drawn into the colour buffer
// PF_NoTexture for no texture
// PF_Occlude is set in HWR_ProjectWall to draw into the depth buffer
}
// Returns true if the midtexture is visible, and false if... it isn't...
static boolean HWR_BlendMidtextureSurface(FSurfaceInfo *pSurf)
{
FUINT blendmode = PF_Masked;
pSurf->PolyColor.s.alpha = 0xFF;
if (LIKELY(!gl_curline->polyseg))
{
if (gl_linedef->blendmode && gl_linedef->blendmode != AST_FOG)
{
if (gl_linedef->alpha >= 0 && gl_linedef->alpha < FRACUNIT)
blendmode = HWR_SurfaceBlend(gl_linedef->blendmode, R_GetLinedefTransTable(gl_linedef->alpha), pSurf);
else
blendmode = HWR_GetBlendModeFlag(gl_linedef->blendmode);
}
else if (gl_linedef->alpha >= 0 && gl_linedef->alpha < FRACUNIT)
blendmode = HWR_TranstableToAlpha(R_GetLinedefTransTable(gl_linedef->alpha), pSurf);
}
else if (gl_curline->polyseg->translucency > 0)
{
// Polyobject translucency is done differently
if (gl_curline->polyseg->translucency >= NUMTRANSMAPS) // wall not drawn
return false;
else
blendmode = HWR_TranstableToAlpha(gl_curline->polyseg->translucency, pSurf);
}
if (blendmode != PF_Masked && pSurf->PolyColor.s.alpha == 0x00)
return false;
pSurf->PolyFlags = blendmode;
return true;
}
//
// HWR_ProcessSeg
// 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_ProcessSeg(void) // Sort of like GLWall::Process in GZDoom
{
FOutVector 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;
fixed_t worldtopslope, worldbottomslope;
fixed_t worldhighslope = 0, worldlowslope = 0;
fixed_t v1x, v1y, v2x, v2y;
fixed_t h, l; // 3D sides and 2s middle textures
fixed_t hS, lS;
boolean tripwire;
boolean noencore;
gl_sidedef = gl_curline->sidedef;
gl_linedef = gl_curline->linedef;
if (LIKELY(gl_curline->pv1))
{
vs.x = ((polyvertex_t *)gl_curline->pv1)->x;
vs.y = ((polyvertex_t *)gl_curline->pv1)->y;
}
else
{
vs.x = FIXED_TO_FLOAT(gl_curline->v1->x);
vs.y = FIXED_TO_FLOAT(gl_curline->v1->y);
}
if (LIKELY(gl_curline->pv2))
{
ve.x = ((polyvertex_t *)gl_curline->pv2)->x;
ve.y = ((polyvertex_t *)gl_curline->pv2)->y;
}
else
{
ve.x = FIXED_TO_FLOAT(gl_curline->v2->x);
ve.y = FIXED_TO_FLOAT(gl_curline->v2->y);
}
v1x = FLOAT_TO_FIXED(vs.x);
v1y = FLOAT_TO_FIXED(vs.y);
v2x = FLOAT_TO_FIXED(ve.x);
v2y = FLOAT_TO_FIXED(ve.y);
#define SLOPEPARAMS(slope, end1, end2, normalheight) \
end1 = P_GetZAt(slope, v1x, v1y, normalheight); \
end2 = P_GetZAt(slope, v2x, v2y, normalheight);
SLOPEPARAMS(gl_frontsector->c_slope, worldtop, worldtopslope, gl_frontsector->ceilingheight)
SLOPEPARAMS(gl_frontsector->f_slope, worldbottom, worldbottomslope, gl_frontsector->floorheight)
// 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;
// x offset the texture
fixed_t texturehpeg = gl_sidedef->textureoffset + gl_curline->offset;
float cliplow = (float)texturehpeg;
float cliphigh = (float)(texturehpeg + (gl_curline->flength*FRACUNIT));
FUINT lightnum = 255;
extracolormap_t *colormap = gl_frontsector->extra_colormap;
FSurfaceInfo Surf;
Surf.PolyColor.s.alpha = 255;
tripwire = P_IsLineTripWire(gl_linedef);
noencore = (gl_linedef->flags & ML_TFERLINE);
if (tripwire == false)
{
lightnum = HWR_CalcWallLight(gl_frontsector->lightlevel, gl_curline);
}
INT32 gl_midtexture = R_GetTextureNum(gl_sidedef->midtexture);
GLMapTexture_t *grTex = NULL;
// two sided line
if (gl_backsector)
{
INT32 gl_toptexture = 0, gl_bottomtexture = 0;
fixed_t texturevpeg;
boolean bothceilingssky = false; // turned on if both back and front ceilings are sky
boolean bothfloorssky = false; // likewise, but for floors
SLOPEPARAMS(gl_backsector->c_slope, worldhigh, worldhighslope, gl_backsector->ceilingheight)
SLOPEPARAMS(gl_backsector->f_slope, worldlow, worldlowslope, gl_backsector->floorheight)
if (mapnamespace == MNS_SRB2KART)
{
if (!gl_curline->polyseg) // Don't do it for polyobjects
{
// Sky Ceilings
wallVerts[3].y = wallVerts[2].y = FIXED_TO_FLOAT(INT32_MAX);
if (gl_frontsector->ceilingpic == skyflatnum)
{
if (gl_backsector->ceilingpic == skyflatnum)
{
// Both front and back sectors are sky, needs skywall from the frontsector's ceiling, but only if the
// backsector is lower
if ((worldhigh <= worldtop && worldhighslope <= worldtopslope)// Assuming ESLOPE is always on with my changes
&& (worldhigh != worldtop || worldhighslope != worldtopslope))
// Removing the second line above will render more rarely visible skywalls. Example: Cave garden ceiling in Dark race
{
wallVerts[0].y = FIXED_TO_FLOAT(worldhigh);
wallVerts[1].y = FIXED_TO_FLOAT(worldhighslope);
HWR_DrawSkyWall(wallVerts, &Surf);
}
}
else
{
// Only the frontsector is sky, just draw a skywall from the front ceiling
wallVerts[0].y = FIXED_TO_FLOAT(worldtop);
wallVerts[1].y = FIXED_TO_FLOAT(worldtopslope);
HWR_DrawSkyWall(wallVerts, &Surf);
}
}
else if (gl_backsector->ceilingpic == skyflatnum)
{
// Only the backsector is sky, just draw a skywall from the front ceiling
wallVerts[0].y = FIXED_TO_FLOAT(worldtop);
wallVerts[1].y = FIXED_TO_FLOAT(worldtopslope);
HWR_DrawSkyWall(wallVerts, &Surf);
}
// Sky Floors
wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(INT32_MIN);
if (gl_frontsector->floorpic == skyflatnum)
{
if (gl_backsector->floorpic == skyflatnum)
{
// Both front and back sectors are sky, needs skywall from the backsector's floor, but only if the
// it's higher, also needs to check for bottomtexture as the floors don't usually move down
// when both sides are sky floors
if ((worldlow >= worldbottom && worldlowslope >= worldbottomslope)
&& (worldlow != worldbottom || worldlowslope != worldbottomslope)
// Removing the second line above will render more rarely visible skywalls. Example: Cave garden ceiling in Dark race
&& !(gl_sidedef->bottomtexture))
{
wallVerts[3].y = FIXED_TO_FLOAT(worldlow);
wallVerts[2].y = FIXED_TO_FLOAT(worldlowslope);
HWR_DrawSkyWall(wallVerts, &Surf);
}
}
else
{
// Only the backsector has sky, just draw a skywall from the back floor
wallVerts[3].y = FIXED_TO_FLOAT(worldbottom);
wallVerts[2].y = FIXED_TO_FLOAT(worldbottomslope);
HWR_DrawSkyWall(wallVerts, &Surf);
}
}
else if ((gl_backsector->floorpic == skyflatnum) && !(gl_sidedef->bottomtexture))
{
// Only the backsector has sky, just draw a skywall from the back floor if there's no bottomtexture
wallVerts[3].y = FIXED_TO_FLOAT(worldlow);
wallVerts[2].y = FIXED_TO_FLOAT(worldlowslope);
HWR_DrawSkyWall(wallVerts, &Surf);
}
}
}
// hack to allow height changes in outdoor areas
// This is what gets rid of the upper textures if there should be sky
if (gl_frontsector->ceilingpic == skyflatnum
&& gl_backsector->ceilingpic == skyflatnum)
{
if (mapnamespace != MNS_SRB2KART)
bothceilingssky = true;
else
{
worldtop = worldhigh;
worldtopslope = worldhighslope;
}
}
if (mapnamespace != MNS_SRB2KART)
{
// likewise, but for floors and upper textures
if (gl_frontsector->floorpic == skyflatnum
&& gl_backsector->floorpic == skyflatnum)
{
bothfloorssky = true;
}
}
// this is always false in binary anyways
if (!bothceilingssky)
gl_toptexture = R_GetTextureNum(gl_sidedef->toptexture);
if (!bothfloorssky)
gl_bottomtexture = R_GetTextureNum(gl_sidedef->bottomtexture);
// check TOP TEXTURE
if ((worldhighslope < worldtopslope || worldhigh < worldtop) && gl_toptexture)
{
// PEGGING
if (gl_linedef->flags & ML_DONTPEGTOP)
texturevpeg = 0;
else if (gl_linedef->flags & ML_SKEWTD)
texturevpeg = worldhigh + textureheight[gl_toptexture] - worldtop;
else
texturevpeg = gl_backsector->ceilingheight + textureheight[gl_toptexture] - gl_frontsector->ceilingheight;
texturevpeg += gl_sidedef->rowoffset + gl_sidedef->offsety_top;
// This is so that it doesn't overflow and screw up the wall, it doesn't need to go higher than the texture's height anyway
texturevpeg %= textureheight[gl_toptexture];
grTex = HWR_GetTexture(gl_toptexture, noencore);
wallVerts[3].t = wallVerts[2].t = texturevpeg * grTex->scaleY;
wallVerts[0].t = wallVerts[1].t = (texturevpeg + gl_frontsector->ceilingheight - gl_backsector->ceilingheight) * grTex->scaleY;
wallVerts[0].s = wallVerts[3].s = (cliplow + gl_sidedef->offsetx_top) * grTex->scaleX;
wallVerts[2].s = wallVerts[1].s = (cliphigh + gl_sidedef->offsetx_top) * grTex->scaleX;
// Adjust t value for sloped walls
if (!(gl_linedef->flags & ML_SKEWTD))
{
// Unskewed
wallVerts[3].t -= (worldtop - gl_frontsector->ceilingheight) * grTex->scaleY;
wallVerts[2].t -= (worldtopslope - gl_frontsector->ceilingheight) * grTex->scaleY;
wallVerts[0].t -= (worldhigh - gl_backsector->ceilingheight) * grTex->scaleY;
wallVerts[1].t -= (worldhighslope - gl_backsector->ceilingheight) * grTex->scaleY;
}
else if (gl_linedef->flags & ML_DONTPEGTOP)
{
// Skewed by top
wallVerts[0].t = (texturevpeg + worldtop - worldhigh) * grTex->scaleY;
wallVerts[1].t = (texturevpeg + worldtopslope - worldhighslope) * grTex->scaleY;
}
else
{
// Skewed by bottom
wallVerts[0].t = wallVerts[1].t = (texturevpeg + worldtop - worldhigh) * grTex->scaleY;
wallVerts[3].t = wallVerts[0].t - (worldtop - worldhigh) * grTex->scaleY;
wallVerts[2].t = wallVerts[1].t - (worldtopslope - worldhighslope) * grTex->scaleY;
}
// set top/bottom coords
wallVerts[3].y = FIXED_TO_FLOAT(worldtop);
wallVerts[0].y = FIXED_TO_FLOAT(worldhigh);
wallVerts[2].y = FIXED_TO_FLOAT(worldtopslope);
wallVerts[1].y = FIXED_TO_FLOAT(worldhighslope);
FBITFIELD polyflags = PF_Masked;
if (grTex->mipmap.flags & TF_TRANSPARENT)
polyflags = PF_Environment;
if (gl_frontsector->numlights)
HWR_SplitWall(gl_frontsector, wallVerts, gl_toptexture, noencore, &Surf, FOF_CUTLEVEL, NULL, polyflags);
else if (grTex->mipmap.flags & TF_TRANSPARENT)
HWR_AddTransparentWall(wallVerts, &Surf, gl_toptexture, noencore, polyflags, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, &Surf, polyflags, lightnum, colormap, gl_toptexture);
}
// check BOTTOM TEXTURE
if ((worldlowslope > worldbottomslope || worldlow > worldbottom) && gl_bottomtexture)
{
// PEGGING
if (!(gl_linedef->flags & ML_DONTPEGBOTTOM))
texturevpeg = 0;
else if (gl_linedef->flags & ML_SKEWTD)
texturevpeg = worldbottom - worldlow;
else
texturevpeg = gl_frontsector->floorheight - gl_backsector->floorheight;
texturevpeg += gl_sidedef->rowoffset + gl_sidedef->offsety_bot;
// This is so that it doesn't overflow and screw up the wall, it doesn't need to go higher than the texture's height anyway
texturevpeg %= textureheight[gl_bottomtexture];
grTex = HWR_GetTexture(gl_bottomtexture, noencore);
wallVerts[3].t = wallVerts[2].t = texturevpeg * grTex->scaleY;
wallVerts[0].t = wallVerts[1].t = (texturevpeg + gl_backsector->floorheight - gl_frontsector->floorheight) * grTex->scaleY;
wallVerts[0].s = wallVerts[3].s = (cliplow + gl_sidedef->offsetx_bot) * grTex->scaleX;
wallVerts[2].s = wallVerts[1].s = (cliphigh + gl_sidedef->offsetx_bot) * grTex->scaleX;
// Adjust t value for sloped walls
if (!(gl_linedef->flags & ML_SKEWTD))
{
// Unskewed
wallVerts[0].t -= (worldbottom - gl_frontsector->floorheight) * grTex->scaleY;
wallVerts[1].t -= (worldbottomslope - gl_frontsector->floorheight) * grTex->scaleY;
wallVerts[3].t -= (worldlow - gl_backsector->floorheight) * grTex->scaleY;
wallVerts[2].t -= (worldlowslope - gl_backsector->floorheight) * grTex->scaleY;
}
else if (gl_linedef->flags & ML_DONTPEGBOTTOM)
{
// Skewed by bottom
wallVerts[0].t = wallVerts[1].t = (texturevpeg + worldlow - worldbottom) * grTex->scaleY;
wallVerts[2].t = wallVerts[1].t - (worldlowslope - worldbottomslope) * grTex->scaleY;
}
else
{
// Skewed by top
wallVerts[0].t = (texturevpeg + worldlow - worldbottom) * grTex->scaleY;
wallVerts[1].t = (texturevpeg + worldlowslope - worldbottomslope) * grTex->scaleY;
}
// set top/bottom coords
wallVerts[3].y = FIXED_TO_FLOAT(worldlow);
wallVerts[0].y = FIXED_TO_FLOAT(worldbottom);
wallVerts[2].y = FIXED_TO_FLOAT(worldlowslope);
wallVerts[1].y = FIXED_TO_FLOAT(worldbottomslope);
FBITFIELD polyflags = PF_Masked;
if (grTex->mipmap.flags & TF_TRANSPARENT)
polyflags = PF_Environment;
if (gl_frontsector->numlights)
HWR_SplitWall(gl_frontsector, wallVerts, gl_bottomtexture, noencore, &Surf, FOF_CUTLEVEL, NULL, polyflags);
else if (grTex->mipmap.flags & TF_TRANSPARENT)
HWR_AddTransparentWall(wallVerts, &Surf, gl_bottomtexture, noencore, polyflags, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, &Surf, polyflags, lightnum, colormap, gl_bottomtexture);
}
// Render midtexture if there's one. Determine if it's visible first, though
if (gl_midtexture && HWR_BlendMidtextureSurface(&Surf))
{
sector_t *front, *back;
INT32 repeats;
if (gl_linedef->frontsector->heightsec != -1)
front = &sectors[gl_linedef->frontsector->heightsec];
else
front = gl_linedef->frontsector;
if (gl_linedef->backsector->heightsec != -1)
back = &sectors[gl_linedef->backsector->heightsec];
else
back = gl_linedef->backsector;
if (gl_sidedef->repeatcnt)
repeats = 1 + gl_sidedef->repeatcnt;
else if (gl_linedef->flags & ML_WRAPMIDTEX)
{
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[gl_midtexture];
if ((high - low) % textureheight[gl_midtexture])
repeats++; // tile an extra time to fill the gap -- Monster Iestyn
}
else
repeats = 1;
// SoM: a little note: 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.
fixed_t popentop, popenbottom, polytop, polybottom, lowcut, highcut;
fixed_t popentopslope, popenbottomslope, polytopslope, polybottomslope, lowcutslope, highcutslope;
// 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 (gl_curline->polyseg)
{
popentop = popentopslope = back->ceilingheight;
popenbottom = popenbottomslope = back->floorheight;
}
else
{
popentop = min(worldtop, worldhigh);
popenbottom = max(worldbottom, worldlow);
popentopslope = min(worldtopslope, worldhighslope);
popenbottomslope = max(worldbottomslope, worldlowslope);
}
// Find the wall's coordinates
fixed_t midtexheight = textureheight[gl_midtexture] * repeats;
// Texture is not skewed
if (gl_linedef->flags & ML_NOSKEW)
{
if (gl_linedef->flags & ML_MIDPEG) // Peg it to the floor
{
polybottom = max(front->floorheight, back->floorheight) + gl_sidedef->rowoffset + gl_sidedef->offsety_mid;
polytop = polybottom + midtexheight;
}
else // Peg it to the ceiling
{
polytop = min(front->ceilingheight, back->ceilingheight) + gl_sidedef->rowoffset + gl_sidedef->offsety_mid;
polybottom = polytop - midtexheight;
}
// The right side's coordinates are the the same as the left side
polytopslope = polytop;
polybottomslope = polybottom;
}
else if (gl_linedef->flags & ML_MIDPEG) // Skew the texture, but peg it to the floor
{
polybottom = popenbottom + gl_sidedef->rowoffset + gl_sidedef->offsety_mid;
polytop = polybottom + midtexheight;
polybottomslope = popenbottomslope + gl_sidedef->rowoffset + gl_sidedef->offsety_mid;
polytopslope = polybottomslope + midtexheight;
}
else // Skew it according to the ceiling's slope
{
polytop = popentop + gl_sidedef->rowoffset;
polybottom = polytop - midtexheight;
polytopslope = popentopslope + gl_sidedef->rowoffset;
polybottomslope = polytopslope - midtexheight;
}
// CB
// 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 (gl_curline->polyseg)
{
lowcut = polybottom;
highcut = polytop;
lowcutslope = polybottomslope;
highcutslope = polytopslope;
}
else
{
// The cut-off values of a linedef can always be constant, since every line has an absoulute front and or back sector
lowcut = popenbottom;
highcut = popentop;
lowcutslope = popenbottomslope;
highcutslope = popentopslope;
}
h = min(highcut, polytop);
l = max(polybottom, lowcut);
hS = min(highcutslope, polytopslope);
lS = max(polybottomslope, lowcutslope);
// PEGGING
fixed_t texturevpegslope;
if (gl_linedef->flags & ML_MIDPEG)
{
texturevpeg = midtexheight - h + polybottom;
texturevpegslope = midtexheight - hS + polybottomslope;
}
else
{
texturevpeg = polytop - h;
texturevpegslope = polytopslope - hS;
}
grTex = HWR_GetTexture(gl_midtexture, noencore);
// Left side
wallVerts[3].t = texturevpeg * grTex->scaleY;
wallVerts[0].t = (h - l + texturevpeg) * grTex->scaleY;
wallVerts[0].s = wallVerts[3].s = (cliplow + gl_sidedef->offsetx_mid) * grTex->scaleX;
// Right side
wallVerts[2].t = texturevpegslope * grTex->scaleY;
wallVerts[1].t = (hS - lS + texturevpegslope) * grTex->scaleY;
wallVerts[2].s = wallVerts[1].s = (cliphigh + gl_sidedef->offsetx_mid) * 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[3].y = FIXED_TO_FLOAT(h);
wallVerts[0].y = FIXED_TO_FLOAT(l);
wallVerts[2].y = FIXED_TO_FLOAT(hS);
wallVerts[1].y = FIXED_TO_FLOAT(lS);
// TODO: Actually use the surface's flags so that I don't have to do this
FUINT blendmode = Surf.PolyFlags;
if (mapnamespace != MNS_SRB2KART)
{
// Correct to account for slopes
fixed_t midtextureslant;
if (gl_linedef->flags & ML_NOSKEW)
midtextureslant = 0;
else if (gl_linedef->flags & ML_MIDPEG)
midtextureslant = worldlow < worldbottom
? worldbottomslope-worldbottom
: worldlowslope-worldlow;
else
midtextureslant = worldtop < worldhigh
? worldtopslope-worldtop
: worldhighslope-worldhigh;
polytop += midtextureslant;
polybottom += midtextureslant;
highcut += worldtop < worldhigh
? worldtopslope-worldtop
: worldhighslope-worldhigh;
lowcut += worldlow < worldbottom
? worldbottomslope-worldbottom
: worldlowslope-worldlow;
// Texture stuff
h = min(highcut, polytop);
l = max(polybottom, lowcut);
{
// PEGGING
if (gl_linedef->flags & ML_MIDPEG)
texturevpeg = textureheight[gl_sidedef->midtexture]*repeats - h + polybottom;
else
texturevpeg = polytop - h;
wallVerts[2].t = texturevpeg * grTex->scaleY;
wallVerts[1].t = (h - l + texturevpeg) * grTex->scaleY;
}
wallVerts[2].y = FIXED_TO_FLOAT(h);
wallVerts[1].y = FIXED_TO_FLOAT(l);
}
// Render midtextures on two-sided lines with a z-buffer offset.
// This will cause the midtexture appear on top, if a FOF overlaps with it.
blendmode |= PF_Decal;
if (tripwire == false && gl_frontsector->numlights)
{
if (!(blendmode & PF_Masked))
HWR_SplitWall(gl_frontsector, wallVerts, gl_midtexture, noencore, &Surf, FOF_TRANSLUCENT, NULL, blendmode); // vanilla just uses PF_Masked here - if we run into any issues, maybe change to that
else
{
HWR_SplitWall(gl_frontsector, wallVerts, gl_midtexture, noencore, &Surf, FOF_CUTLEVEL, NULL, blendmode); // vanilla just uses PF_Masked here - if we run into any issues, maybe change to that
}
}
else if (!(blendmode & PF_Masked))
HWR_AddTransparentWall(wallVerts, &Surf, gl_midtexture, noencore, blendmode, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, &Surf, blendmode, lightnum, colormap, gl_midtexture);
}
// Sky culling
// No longer so much a mess as before!
// It now is a mess again, thx kart!
// see above!
if (mapnamespace != MNS_SRB2KART)
{
if (!gl_curline->polyseg) // Don't do it for polyobjects
{
if (gl_frontsector->ceilingpic == skyflatnum
&& gl_backsector->ceilingpic != skyflatnum) // don't cull if back sector is also sky
{
wallVerts[2].y = wallVerts[3].y = FIXED_TO_FLOAT(INT32_MAX); // draw to top of map space
wallVerts[0].y = FIXED_TO_FLOAT(worldtop);
wallVerts[1].y = FIXED_TO_FLOAT(worldtopslope);
HWR_DrawSkyWall(wallVerts, &Surf);
}
if (gl_frontsector->floorpic == skyflatnum
&& gl_backsector->floorpic != skyflatnum) // same thing here
{
wallVerts[3].y = FIXED_TO_FLOAT(worldbottom);
wallVerts[2].y = FIXED_TO_FLOAT(worldbottomslope);
wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(INT32_MIN); // draw to bottom of map space
HWR_DrawSkyWall(wallVerts, &Surf);
}
}
}
}
else
{
// Single sided line... Deal only with the middletexture (if one exists)
if (gl_midtexture && gl_linedef->special != HORIZONSPECIAL) // (Ignore horizon line for OGL)
{
fixed_t texturevpeg;
// PEGGING
if ((gl_linedef->flags & (ML_DONTPEGBOTTOM|ML_NOSKEW)) == (ML_DONTPEGBOTTOM|ML_NOSKEW))
texturevpeg = gl_frontsector->floorheight + textureheight[gl_sidedef->midtexture] - gl_frontsector->ceilingheight + gl_sidedef->rowoffset + gl_sidedef->offsety_mid;
else if (gl_linedef->flags & ML_DONTPEGBOTTOM)
texturevpeg = worldbottom + textureheight[gl_sidedef->midtexture] - worldtop + gl_sidedef->rowoffset + gl_sidedef->offsety_mid;
else
// top of texture at top
texturevpeg = gl_sidedef->rowoffset + gl_sidedef->offsety_mid;
grTex = HWR_GetTexture(gl_midtexture, noencore);
wallVerts[3].t = wallVerts[2].t = texturevpeg * grTex->scaleY;
wallVerts[0].t = wallVerts[1].t = (texturevpeg + gl_frontsector->ceilingheight - gl_frontsector->floorheight) * grTex->scaleY;
wallVerts[0].s = wallVerts[3].s = (cliplow + gl_sidedef->offsetx_mid) * grTex->scaleX;
wallVerts[2].s = wallVerts[1].s = (cliphigh + gl_sidedef->offsetx_mid) * grTex->scaleX;
// Texture correction for slopes
if (gl_linedef->flags & ML_NOSKEW) {
wallVerts[3].t += (gl_frontsector->ceilingheight - worldtop) * grTex->scaleY;
wallVerts[2].t += (gl_frontsector->ceilingheight - worldtopslope) * grTex->scaleY;
wallVerts[0].t += (gl_frontsector->floorheight - worldbottom) * grTex->scaleY;
wallVerts[1].t += (gl_frontsector->floorheight - worldbottomslope) * grTex->scaleY;
} else if (gl_linedef->flags & ML_DONTPEGBOTTOM) {
wallVerts[3].t = wallVerts[0].t + (worldbottom-worldtop) * grTex->scaleY;
wallVerts[2].t = wallVerts[1].t + (worldbottomslope-worldtopslope) * grTex->scaleY;
} else {
wallVerts[0].t = wallVerts[3].t - (worldbottom-worldtop) * grTex->scaleY;
wallVerts[1].t = wallVerts[2].t - (worldbottomslope-worldtopslope) * grTex->scaleY;
}
//Set textures properly on single sided walls that are sloped
wallVerts[3].y = FIXED_TO_FLOAT(worldtop);
wallVerts[0].y = FIXED_TO_FLOAT(worldbottom);
wallVerts[2].y = FIXED_TO_FLOAT(worldtopslope);
wallVerts[1].y = FIXED_TO_FLOAT(worldbottomslope);
// I don't think that solid walls can use translucent linedef types...
if (gl_frontsector->numlights)
HWR_SplitWall(gl_frontsector, wallVerts, gl_midtexture, noencore, &Surf, FOF_CUTLEVEL, NULL, 0);
else
{
FBITFIELD blendmode = PF_Masked;
if (grTex->mipmap.flags & TF_TRANSPARENT)
blendmode = PF_Environment;
// I don't think that solid walls can use translucent linedef types...
if (gl_frontsector->numlights)
HWR_SplitWall(gl_frontsector, wallVerts, gl_midtexture, noencore, &Surf, FOF_CUTLEVEL, NULL, blendmode);
else
{
if (grTex->mipmap.flags & TF_TRANSPARENT)
HWR_AddTransparentWall(wallVerts, &Surf, gl_midtexture, noencore, blendmode, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, &Surf, blendmode, lightnum, colormap, gl_midtexture);
}
}
}
else if (mapnamespace == MNS_SRB2KART)
{
//Set textures properly on single sided walls that are sloped
wallVerts[3].y = FIXED_TO_FLOAT(worldtop);
wallVerts[0].y = FIXED_TO_FLOAT(worldbottom);
wallVerts[2].y = FIXED_TO_FLOAT(worldtopslope);
wallVerts[1].y = FIXED_TO_FLOAT(worldbottomslope);
// When there's no midtexture, draw a skywall to prevent rendering behind it
HWR_DrawSkyWall(wallVerts, &Surf);
}
if (!gl_curline->polyseg)
{
if (gl_frontsector->ceilingpic == skyflatnum) // It's a single-sided line with sky for its sector
{
wallVerts[2].y = wallVerts[3].y = FIXED_TO_FLOAT(INT32_MAX); // draw to top of map space
wallVerts[0].y = FIXED_TO_FLOAT(worldtop);
wallVerts[1].y = FIXED_TO_FLOAT(worldtopslope);
HWR_DrawSkyWall(wallVerts, &Surf);
}
if (gl_frontsector->floorpic == skyflatnum)
{
wallVerts[3].y = FIXED_TO_FLOAT(worldbottom);
wallVerts[2].y = FIXED_TO_FLOAT(worldbottomslope);
wallVerts[0].y = wallVerts[1].y = FIXED_TO_FLOAT(INT32_MIN); // draw to bottom of map space
HWR_DrawSkyWall(wallVerts, &Surf);
}
}
}
//Hurdler: 3d-floors test
if (gl_backsector && !Tag_Compare(&gl_frontsector->tags, &gl_backsector->tags) && (gl_backsector->ffloors || gl_frontsector->ffloors))
{
ffloor_t * rover;
fixed_t highcut = 0, lowcut = 0;
fixed_t lowcutslope, highcutslope;
// Used for height comparisons and etc across FOFs and slopes
fixed_t high1, highslope1, low1, lowslope1;
INT32 texnum;
line_t * newline = NULL; // Multi-Property FOF
lowcut = max(worldbottom, worldlow);
highcut = min(worldtop, worldhigh);
lowcutslope = max(worldbottomslope, worldlowslope);
highcutslope = min(worldtopslope, worldhighslope);
if (gl_backsector->ffloors)
{
for (rover = gl_backsector->ffloors; rover; rover = rover->next)
{
boolean bothsides = false;
// Skip if it exists on both sectors.
ffloor_t * r2;
for (r2 = gl_frontsector->ffloors; r2; r2 = r2->next)
if (rover->master == r2->master)
{
bothsides = true;
break;
}
if (bothsides) continue;
if (!(rover->fofflags & FOF_EXISTS) || !(rover->fofflags & FOF_RENDERSIDES))
continue;
if (!(rover->fofflags & FOF_ALLSIDES) && rover->fofflags & FOF_INVERTSIDES)
continue;
SLOPEPARAMS(*rover->t_slope, high1, highslope1, *rover->topheight)
SLOPEPARAMS(*rover->b_slope, low1, lowslope1, *rover->bottomheight)
if ((high1 < lowcut || highslope1 < lowcutslope) || (low1 > highcut || lowslope1 > highcutslope))
continue;
texnum = R_GetTextureNum(sides[rover->master->sidenum[0]].midtexture);
if (rover->master->flags & ML_TFERLINE)
{
size_t linenum = min(gl_curline->linedef-gl_backsector->lines[0], (long int)rover->master->frontsector->linecount);
newline = rover->master->frontsector->lines[0] + linenum;
texnum = R_GetTextureNum(sides[newline->sidenum[0]].midtexture);
}
h = P_GetFFloorTopZAt (rover, v1x, v1y);
hS = P_GetFFloorTopZAt (rover, v2x, v2y);
l = P_GetFFloorBottomZAt(rover, v1x, v1y);
lS = P_GetFFloorBottomZAt(rover, v2x, v2y);
// Adjust the heights so the FOF does not overlap with top and bottom textures.
if (h >= highcut && hS >= highcutslope)
{
h = highcut;
hS = highcutslope;
}
if (l <= lowcut && lS <= lowcutslope)
{
l = lowcut;
lS = lowcutslope;
}
//Hurdler: HW code starts here
//FIXME: check if peging is correct
// set top/bottom coords
wallVerts[3].y = FIXED_TO_FLOAT(h);
wallVerts[2].y = FIXED_TO_FLOAT(hS);
wallVerts[0].y = FIXED_TO_FLOAT(l);
wallVerts[1].y = FIXED_TO_FLOAT(lS);
if (rover->fofflags & FOF_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
{
fixed_t texturevpeg;
boolean attachtobottom = false;
boolean slopeskew = false; // skew FOF walls with slopes?
// Wow, how was this missing from OpenGL for so long?
// ...Oh well, anyway, Lower Unpegged now changes pegging of FOFs like in software
// -- Monster Iestyn 26/06/18
if (newline)
{
texturevpeg = sides[newline->sidenum[0]].rowoffset + sides[newline->sidenum[0]].offsety_mid;
attachtobottom = !!(newline->flags & ML_DONTPEGBOTTOM);
slopeskew = !!(newline->flags & ML_SKEWTD);
}
else
{
texturevpeg = sides[rover->master->sidenum[0]].rowoffset + sides[rover->master->sidenum[0]].offsety_mid;
attachtobottom = !!(gl_linedef->flags & ML_DONTPEGBOTTOM);
slopeskew = !!(rover->master->flags & ML_SKEWTD);
}
grTex = HWR_GetTexture(texnum, noencore);
if (!slopeskew) // no skewing
{
if (attachtobottom)
texturevpeg -= *rover->topheight - *rover->bottomheight;
wallVerts[3].t = (*rover->topheight - h + texturevpeg) * grTex->scaleY;
wallVerts[2].t = (*rover->topheight - hS + texturevpeg) * grTex->scaleY;
wallVerts[0].t = (*rover->topheight - l + texturevpeg) * grTex->scaleY;
wallVerts[1].t = (*rover->topheight - lS + texturevpeg) * grTex->scaleY;
}
else
{
if (!attachtobottom) // skew by top
{
wallVerts[3].t = wallVerts[2].t = texturevpeg * grTex->scaleY;
wallVerts[0].t = (h - l + texturevpeg) * grTex->scaleY;
wallVerts[1].t = (hS - lS + texturevpeg) * grTex->scaleY;
}
else // skew by bottom
{
wallVerts[0].t = wallVerts[1].t = texturevpeg * grTex->scaleY;
wallVerts[3].t = wallVerts[0].t - (h - l) * grTex->scaleY;
wallVerts[2].t = wallVerts[1].t - (hS - lS) * grTex->scaleY;
}
}
wallVerts[0].s = wallVerts[3].s = (cliplow + gl_sidedef->offsetx_mid) * grTex->scaleX;
wallVerts[2].s = wallVerts[1].s = (cliphigh + gl_sidedef->offsetx_mid) * grTex->scaleX;
}
if (rover->fofflags & FOF_FOG)
{
FBITFIELD blendmode;
blendmode = PF_Fog|PF_NoTexture;
lightnum = HWR_CalcWallLight(rover->master->frontsector->lightlevel, gl_curline);
colormap = rover->master->frontsector->extra_colormap;
Surf.PolyColor.s.alpha = HWR_FogBlockAlpha(rover->master->frontsector->lightlevel, rover->master->frontsector->extra_colormap);
if (gl_frontsector->numlights)
HWR_SplitWall(gl_frontsector, wallVerts, 0, false, &Surf, rover->fofflags, rover, blendmode);
else
HWR_AddTransparentWall(wallVerts, &Surf, 0, false ,blendmode, true, lightnum, colormap);
}
else
{
FBITFIELD blendmode = PF_Masked;
if (rover->fofflags & FOF_TRANSLUCENT)
{
if (rover->alpha < 256 || rover->blend)
{
blendmode = HWR_GetBlendModeFlag(rover->blend);
Surf.PolyColor.s.alpha = (UINT8)(max(0, min(rover->alpha, 255)));
}
}
if (gl_frontsector->numlights)
HWR_SplitWall(gl_frontsector, wallVerts, texnum, noencore, &Surf, rover->fofflags, rover, blendmode);
else
{
if (blendmode != PF_Masked)
HWR_AddTransparentWall(wallVerts, &Surf, texnum, noencore, blendmode, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, &Surf, PF_Masked, lightnum, colormap, texnum);
}
}
}
}
if (gl_frontsector->ffloors) // Putting this seperate should allow 2 FOF sectors to be connected without too many errors? I think?
{
for (rover = gl_frontsector->ffloors; rover; rover = rover->next)
{
boolean bothsides = false;
// Skip if it exists on both sectors.
ffloor_t * r2;
for (r2 = gl_backsector->ffloors; r2; r2 = r2->next)
if (rover->master == r2->master)
{
bothsides = true;
break;
}
if (bothsides) continue;
if (!(rover->fofflags & FOF_EXISTS) || !(rover->fofflags & FOF_RENDERSIDES))
continue;
if (!(rover->fofflags & FOF_ALLSIDES || rover->fofflags & FOF_INVERTSIDES))
continue;
SLOPEPARAMS(*rover->t_slope, high1, highslope1, *rover->topheight)
SLOPEPARAMS(*rover->b_slope, low1, lowslope1, *rover->bottomheight)
if ((high1 < lowcut || highslope1 < lowcutslope) || (low1 > highcut || lowslope1 > highcutslope))
continue;
texnum = R_GetTextureNum(sides[rover->master->sidenum[0]].midtexture);
if (rover->master->flags & ML_TFERLINE)
{
size_t linenum = min(gl_curline->linedef-gl_backsector->lines[0], (long int)rover->master->frontsector->linecount);
newline = rover->master->frontsector->lines[0] + linenum;
texnum = R_GetTextureNum(sides[newline->sidenum[0]].midtexture);
}
h = P_GetFFloorTopZAt (rover, v1x, v1y);
hS = P_GetFFloorTopZAt (rover, v2x, v2y);
l = P_GetFFloorBottomZAt(rover, v1x, v1y);
lS = P_GetFFloorBottomZAt(rover, v2x, v2y);
// Adjust the heights so the FOF does not overlap with top and bottom textures.
if (h >= highcut && hS >= highcutslope)
{
h = highcut;
hS = highcutslope;
}
if (l <= lowcut && lS <= lowcutslope)
{
l = lowcut;
lS = lowcutslope;
}
//Hurdler: HW code starts here
//FIXME: check if peging is correct
// set top/bottom coords
wallVerts[3].y = FIXED_TO_FLOAT(h);
wallVerts[2].y = FIXED_TO_FLOAT(hS);
wallVerts[0].y = FIXED_TO_FLOAT(l);
wallVerts[1].y = FIXED_TO_FLOAT(lS);
if (rover->fofflags & FOF_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
{
grTex = HWR_GetTexture(texnum, noencore);
if (newline)
{
wallVerts[3].t = wallVerts[2].t = (*rover->topheight - h + sides[newline->sidenum[0]].rowoffset + sides[newline->sidenum[0]].offsety_mid) * grTex->scaleY;
wallVerts[0].t = wallVerts[1].t = (h - l + (*rover->topheight - h + sides[newline->sidenum[0]].rowoffset) + sides[newline->sidenum[0]].offsety_mid) * grTex->scaleY;
}
else
{
wallVerts[3].t = wallVerts[2].t = (*rover->topheight - h + sides[rover->master->sidenum[0]].rowoffset + sides[rover->master->sidenum[0]].offsety_mid) * grTex->scaleY;
wallVerts[0].t = wallVerts[1].t = (h - l + (*rover->topheight - h + sides[rover->master->sidenum[0]].rowoffset + sides[rover->master->sidenum[0]].offsety_mid)) * grTex->scaleY;
}
wallVerts[0].s = wallVerts[3].s = (cliplow + gl_sidedef->offsetx_mid) * grTex->scaleX;
wallVerts[2].s = wallVerts[1].s = (cliphigh + gl_sidedef->offsetx_mid) * grTex->scaleX;
}
if (rover->fofflags & FOF_FOG)
{
FBITFIELD blendmode;
blendmode = PF_Fog|PF_NoTexture;
lightnum = HWR_CalcWallLight(rover->master->frontsector->lightlevel, gl_curline);
colormap = rover->master->frontsector->extra_colormap;
Surf.PolyColor.s.alpha = HWR_FogBlockAlpha(rover->master->frontsector->lightlevel, rover->master->frontsector->extra_colormap);
if (gl_backsector->numlights)
HWR_SplitWall(gl_backsector, wallVerts, 0, false, &Surf, rover->fofflags, rover, blendmode);
else
HWR_AddTransparentWall(wallVerts, &Surf, 0, false, blendmode, true, lightnum, colormap);
}
else
{
FBITFIELD blendmode = PF_Masked;
if (rover->fofflags & FOF_TRANSLUCENT)
{
if (rover->alpha < 256 || rover->blend)
{
blendmode = HWR_GetBlendModeFlag(rover->blend);
Surf.PolyColor.s.alpha = (UINT8)(max(0, min(rover->alpha, 255)));
}
}
if (gl_backsector->numlights)
HWR_SplitWall(gl_backsector, wallVerts, texnum, noencore, &Surf, rover->fofflags, rover, blendmode);
else
{
if (blendmode != PF_Masked)
HWR_AddTransparentWall(wallVerts, &Surf, texnum, noencore, blendmode, false, lightnum, colormap);
else
HWR_ProjectWall(wallVerts, &Surf, PF_Masked, lightnum, colormap, texnum);
}
}
}
}
}
#undef SLOPEPARAMS
//Hurdler: end of 3d-floors test
}
// From PrBoom:
//
// e6y: Check whether the player can look beyond this line
//
boolean checkforemptylines = true;
// Don't modify anything here, just check
// Kalaron: Modified for sloped linedefs
static boolean CheckClip(seg_t * seg, sector_t * afrontsector, sector_t * abacksector)
{
fixed_t frontf1,frontf2, frontc1, frontc2; // front floor/ceiling ends
fixed_t backf1, backf2, backc1, backc2; // back floor ceiling ends
boolean bothceilingssky = false, bothfloorssky = false;
if (mapnamespace != MNS_SRB2KART)
{
if (abacksector->ceilingpic == skyflatnum && afrontsector->ceilingpic == skyflatnum)
bothceilingssky = true;
if (abacksector->floorpic == skyflatnum && afrontsector->floorpic == skyflatnum)
bothfloorssky = true;
}
// GZDoom method of sloped line clipping
if (afrontsector->f_slope || afrontsector->c_slope || abacksector->f_slope || abacksector->c_slope)
{
fixed_t v1x, v1y, v2x, v2y; // the seg's vertexes as fixed_t
if (LIKELY(gl_curline->pv1))
{
v1x = FLOAT_TO_FIXED(((polyvertex_t *)gl_curline->pv1)->x);
v1y = FLOAT_TO_FIXED(((polyvertex_t *)gl_curline->pv1)->y);
}
else
{
v1x = gl_curline->v1->x;
v1y = gl_curline->v1->y;
}
if (LIKELY(gl_curline->pv2))
{
v2x = FLOAT_TO_FIXED(((polyvertex_t *)gl_curline->pv2)->x);
v2y = FLOAT_TO_FIXED(((polyvertex_t *)gl_curline->pv2)->y);
}
else
{
v2x = gl_curline->v2->x;
v2y = gl_curline->v2->y;
}
#define SLOPEPARAMS(slope, end1, end2, normalheight) \
end1 = P_GetZAt(slope, v1x, v1y, normalheight); \
end2 = P_GetZAt(slope, v2x, v2y, normalheight);
SLOPEPARAMS(afrontsector->f_slope, frontf1, frontf2, afrontsector-> floorheight)
SLOPEPARAMS(afrontsector->c_slope, frontc1, frontc2, afrontsector->ceilingheight)
SLOPEPARAMS( abacksector->f_slope, backf1, backf2, abacksector-> floorheight)
SLOPEPARAMS( abacksector->c_slope, backc1, backc2, abacksector->ceilingheight)
#undef SLOPEPARAMS
}
else
{
frontf1 = frontf2 = afrontsector-> floorheight;
frontc1 = frontc2 = afrontsector->ceilingheight;
backf1 = backf2 = abacksector-> floorheight;
backc1 = backc2 = abacksector->ceilingheight;
}
// properly render skies (consider door "open" if both ceilings are sky)
// same for floors
// lug: but only on kart maps :chaosleep:
// kart does some funky crap on its binary maps and thus using this code breaks many maps visually and generally makes performance really bad
if (mapnamespace != MNS_SRB2KART)
{
if (!bothceilingssky && !bothfloorssky)
{
// now check for closed sectors!
if ((backc1 <= frontf1 && backc2 <= frontf2)
|| (backf1 >= frontc1 && backf2 >= frontc2))
{
checkforemptylines = false;
return true;
}
if (backc1 <= backf1 && backc2 <= backf2)
{
// preserve a kind of transparent door/lift special effect:
if (((backc1 >= frontc1 && backc2 >= frontc2) || seg->sidedef->toptexture)
&& ((backf1 <= frontf1 && backf2 <= frontf2) || seg->sidedef->bottomtexture))
{
checkforemptylines = false;
return true;
}
}
}
if (!bothceilingssky)
{
if (backc1 != frontc1 || backc2 != frontc2)
{
checkforemptylines = false;
return false;
}
}
if (!bothfloorssky)
{
if (backf1 != frontf1 || backf2 != frontf2)
{
checkforemptylines = false;
return false;
}
}
}
else
{
// not in vanilla kart, but this makes noclipcam alot more bearable when its stuck in walls
// otherwise it may cull half your view which is not really desirable
if (afrontsector == viewsector || abacksector == viewsector)
{
fixed_t viewf1, viewf2, viewc1, viewc2;
if (afrontsector == viewsector)
{
viewf1 = frontf1;
viewf2 = frontf2;
viewc1 = frontc1;
viewc2 = frontc2;
}
else
{
viewf1 = backf1;
viewf2 = backf2;
viewc1 = backc1;
viewc2 = backc2;
}
// check if camera is outside the bounds of the floor and the ceiling (noclipping)
// either above the ceiling or below the floor
if ((viewz > viewc1 && viewz > viewc2) || (viewz < viewf1 && viewz < viewf2))
return false;
}
// now check for closed sectors!
// here we're talking about a CEILING lower than a floor. ...yeah we don't even need to bother.
if (backc1 <= frontf1 && backc2 <= frontf2)
{
checkforemptylines = false;
return true;
}
// here we're talking about floors higher than ceilings, don't even bother either.
if (backf1 >= frontc1 && backf2 >= frontc2)
{
checkforemptylines = false;
return true;
}
// Lat: Ok, here's what we need to do, we want to draw thok barriers. Let's define what a thok barrier is;
// -Must have ceilheight <= floorheight
// -ceilpic must be skyflatnum
// -an adjacant sector needs to have a ceilingheight or a floor height different than the one we have, otherwise, it's just a huge ass wall, we shouldn't render past it.
// -said adjacant sector cannot also be a thok barrier, because that's also dumb and we could render far more than we need to as a result :V
if (backc1 <= backf1 && backc2 <= backf2)
{
checkforemptylines = false;
// before we do anything, if both sectors are thok barriers, GET ME OUT OF HERE!
if (frontc1 <= backc1 && frontc2 <= backc2)
return true; // STOP RENDERING.
// draw floors at the top of thok barriers:
if (backc1 < frontc1 || backc2 < frontc2)
return false;
if (backf1 > frontf1 || backf2 > frontf2)
return false;
return true;
}
// Window.
// We know it's a window when the above isn't true and the back and front sectors don't match
if (backc1 != frontc1 || backc2 != frontc2 || backf1 != frontf1 || backf2 != frontf2)
{
checkforemptylines = false;
return false;
}
}
return false;
}
// -----------------+
// HWR_AddLine : Clips the given segment and adds any visible pieces to the line list.
// Notes : gl_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)
{
angle_t angle1, angle2;
// SoM: Backsector needs to be run through R_FakeFlat
static sector_t tempsec;
fixed_t v1x, v1y, v2x, v2y; // the seg's vertexes as fixed_t
if (line->polyseg && !(line->polyseg->flags & POF_RENDERSIDES))
return;
gl_curline = line;
if (LIKELY(gl_curline->pv1))
{
v1x = FLOAT_TO_FIXED(((polyvertex_t *)gl_curline->pv1)->x);
v1y = FLOAT_TO_FIXED(((polyvertex_t *)gl_curline->pv1)->y);
}
else
{
v1x = gl_curline->v1->x;
v1y = gl_curline->v1->y;
}
if (LIKELY(gl_curline->pv2))
{
v2x = FLOAT_TO_FIXED(((polyvertex_t *)gl_curline->pv2)->x);
v2y = FLOAT_TO_FIXED(((polyvertex_t *)gl_curline->pv2)->y);
}
else
{
v2x = gl_curline->v2->x;
v2y = gl_curline->v2->y;
}
// OPTIMIZE: quickly reject orthogonal back sides.
angle1 = R_PointToAngle64(v1x, v1y);
angle2 = R_PointToAngle64(v2x, v2y);
// PrBoom: Back side, i.e. backface culling - read: endAngle >= startAngle!
if (angle2 - angle1 < ANGLE_180)
return;
// PrBoom: use REAL clipping math YAYYYYYYY!!!
if (!gld_clipper_SafeCheckRange(angle2, angle1))
{
return;
}
checkforemptylines = true;
gl_backsector = line->backsector;
if (!line->backsector)
{
gld_clipper_SafeAddClipRange(angle2, angle1);
}
else
{
boolean bothceilingssky = false, bothfloorssky = false;
gl_backsector = R_FakeFlat(gl_backsector, &tempsec, NULL, NULL, true);
if (mapnamespace != MNS_SRB2KART) // same here, thisll most likely break kart maps
{
if (gl_backsector->ceilingpic == skyflatnum && gl_frontsector->ceilingpic == skyflatnum)
bothceilingssky = true;
if (gl_backsector->floorpic == skyflatnum && gl_frontsector->floorpic == skyflatnum)
bothfloorssky = true;
if (bothceilingssky && bothfloorssky) // everything's sky? let's save us a bit of time then
{
if (!line->polyseg &&
!line->sidedef->midtexture
&& ((!gl_frontsector->ffloors && !gl_backsector->ffloors)
|| Tag_Compare(&gl_frontsector->tags, &gl_backsector->tags)))
return; // line is empty, don't even bother
// treat like wide open window instead
HWR_ProcessSeg(); // Doesn't need arguments because they're defined globally :D
return;
}
}
if (CheckClip(line, gl_frontsector, gl_backsector))
{
gld_clipper_SafeAddClipRange(angle2, angle1);
checkforemptylines = false;
}
// 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 (checkforemptylines && R_IsEmptyLine(line, gl_frontsector, gl_backsector))
return;
}
HWR_ProcessSeg(); // Doesn't need arguments because they're defined globally :D
return;
}
// 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(const fixed_t *bspcoord)
{
INT32 boxpos;
fixed_t px1, py1, px2, py2;
angle_t angle1, angle2;
// 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]];
angle1 = R_PointToAngle64(px1, py1);
angle2 = R_PointToAngle64(px2, py2);
return gld_clipper_SafeCheckRange(angle2, angle1);
}
//
// 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 gl_fakeline;
polyvertex_t pv1;
polyvertex_t pv2;
// 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
memcpy(&gl_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(gl_fakeline.v1->x);
pv1.y = FIXED_TO_FLOAT(gl_fakeline.v1->y);
pv2.x = FIXED_TO_FLOAT(gl_fakeline.v2->x);
pv2.y = FIXED_TO_FLOAT(gl_fakeline.v2->y);
gl_fakeline.pv1 = &pv1;
gl_fakeline.pv2 = &pv2;
HWR_AddLine(&gl_fakeline);
}
}
}
static void HWR_RenderPolyObjectPlane(polyobj_t *polysector, boolean isceiling, fixed_t fixedheight,
FBITFIELD blendmode, UINT8 lightlevel, levelflat_t *levelflat, sector_t *FOFsector,
UINT8 alpha, extracolormap_t *planecolormap)
{
FSurfaceInfo Surf;
FOutVector *v3d;
INT32 shader = SHADER_NONE;
size_t nrPlaneVerts = polysector->numVertices;
INT32 i;
float height = FIXED_TO_FLOAT(fixedheight); // constant y for all points on the convex flat polygon
float flatxref, flatyref;
float fflatwidth = 64.0f, fflatheight = 64.0f;
float scrollx = 0.0f, scrolly = 0.0f;
angle_t angle = 0;
fixed_t tempxs, tempyt;
static FOutVector *planeVerts = NULL;
static UINT16 numAllocedPlaneVerts = 0;
if (nrPlaneVerts < 3) // Not even a triangle?
return;
else if (nrPlaneVerts > (size_t)UINT16_MAX) // FIXME: exceeds plVerts size
{
CONS_Debug(DBG_RENDER, "polygon size of %s exceeds max value of %d vertices\n", sizeu1(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);
}
// set texture for polygon
if (levelflat != NULL)
{
texture_t *texture = textures[R_GetTextureNumForFlat(levelflat)];
fflatwidth = texture->width;
fflatheight = texture->height;
}
else // set no texture
HWR_SetCurrentTexture(NULL);
// reference point for flat texture coord for each vertex around the polygon
flatxref = 0.0;
flatyref = 0.0;
// transform
v3d = planeVerts;
if (FOFsector != NULL)
{
if (!isceiling) // it's a floor
{
scrollx = FIXED_TO_FLOAT(FOFsector->floor_xoffs)/fflatwidth;
scrolly = FIXED_TO_FLOAT(FOFsector->floor_yoffs)/fflatheight;
angle = FOFsector->floorpic_angle;
}
else // it's a ceiling
{
scrollx = FIXED_TO_FLOAT(FOFsector->ceiling_xoffs)/fflatwidth;
scrolly = FIXED_TO_FLOAT(FOFsector->ceiling_yoffs)/fflatheight;
angle = FOFsector->ceilingpic_angle;
}
}
else if (gl_frontsector)
{
if (!isceiling) // it's a floor
{
scrollx = FIXED_TO_FLOAT(gl_frontsector->floor_xoffs)/fflatwidth;
scrolly = FIXED_TO_FLOAT(gl_frontsector->floor_yoffs)/fflatheight;
angle = gl_frontsector->floorpic_angle;
}
else // it's a ceiling
{
scrollx = FIXED_TO_FLOAT(gl_frontsector->ceiling_xoffs)/fflatwidth;
scrolly = FIXED_TO_FLOAT(gl_frontsector->ceiling_yoffs)/fflatheight;
angle = gl_frontsector->ceilingpic_angle;
}
}
for (i = 0; i < (INT32)nrPlaneVerts; i++,v3d++)
{
// Go from the polysector's original vertex locations
// Means the flat is offset based on the original vertex locations
v3d->s = (float)((FIXED_TO_FLOAT(polysector->origVerts[i].x) / fflatwidth) - flatxref + scrollx);
v3d->t = (float)(flatyref - (FIXED_TO_FLOAT(polysector->origVerts[i].y) / fflatheight) + scrolly);
// Need to rotate before translate
if (angle) // Only needs to be done if there's an altered angle
{
tempxs = FLOAT_TO_FIXED(v3d->s);
tempyt = FLOAT_TO_FIXED(v3d->t);
angle = ANG2RAD(InvAngle(angle));
v3d->s = (FIXED_TO_FLOAT(FixedMul(tempxs, FINECOSINE(angle)) - FixedMul(tempyt, FINESINE(angle))));
v3d->t = (FIXED_TO_FLOAT(FixedMul(tempxs, FINESINE(angle)) + FixedMul(tempyt, FINECOSINE(angle))));
}
v3d->x = FIXED_TO_FLOAT(polysector->vertices[i]->x);
v3d->y = height;
v3d->z = FIXED_TO_FLOAT(polysector->vertices[i]->y);
}
HWR_Lighting(&Surf, lightlevel, planecolormap, P_SectorUsesDirectionalLighting((FOFsector != NULL) ? FOFsector : gl_frontsector));
if (blendmode & PF_Translucent)
{
Surf.PolyColor.s.alpha = (UINT8)alpha;
blendmode |= PF_Modulated|PF_Occlude;
}
else
blendmode |= PF_Masked|PF_Modulated;
if (HWR_UseShader())
{
shader = SHADER_FLOOR;
blendmode |= PF_ColorMapped;
}
HWR_ProcessPolygon(&Surf, planeVerts, nrPlaneVerts, blendmode, shader, false);
}
static void HWR_AddPolyObjectPlanes(void)
{
size_t i;
sector_t *polyobjsector;
INT32 light = 0;
// Polyobject Planes need their own function for drawing because they don't have extrasubsectors by themselves
// It should be okay because polyobjects should always be convex anyway
for (i = 0; i < numpolys; i++)
{
polyobjsector = po_ptrs[i]->lines[0]->backsector; // the in-level polyobject sector
if (!(po_ptrs[i]->flags & POF_RENDERPLANES)) // Only render planes when you should
continue;
if (po_ptrs[i]->translucency >= NUMTRANSMAPS)
continue;
if (polyobjsector->floorheight <= gl_frontsector->ceilingheight
&& polyobjsector->floorheight >= gl_frontsector->floorheight
&& (viewz < polyobjsector->floorheight))
{
light = R_GetPlaneLight(gl_frontsector, polyobjsector->floorheight, true);
if (po_ptrs[i]->translucency > 0)
{
FSurfaceInfo Surf;
FBITFIELD blendmode;
memset(&Surf, 0x00, sizeof(Surf));
blendmode = HWR_TranstableToAlpha(po_ptrs[i]->translucency, &Surf);
HWR_AddTransparentPolyobjectFloor(&levelflats[polyobjsector->floorpic], po_ptrs[i], false, polyobjsector->floorheight,
(light == -1 ? gl_frontsector->lightlevel : *gl_frontsector->lightlist[light].lightlevel), Surf.PolyColor.s.alpha, polyobjsector, blendmode, (light == -1 ? gl_frontsector->extra_colormap : *gl_frontsector->lightlist[light].extra_colormap));
}
else
{
HWR_GetLevelFlat(&levelflats[polyobjsector->floorpic], R_NoEncore(polyobjsector, &levelflats[polyobjsector->floorpic], false));
HWR_RenderPolyObjectPlane(po_ptrs[i], false, polyobjsector->floorheight, PF_Occlude,
(light == -1 ? gl_frontsector->lightlevel : *gl_frontsector->lightlist[light].lightlevel), &levelflats[polyobjsector->floorpic],
polyobjsector, 255, (light == -1 ? gl_frontsector->extra_colormap : *gl_frontsector->lightlist[light].extra_colormap));
}
}
if (polyobjsector->ceilingheight >= gl_frontsector->floorheight
&& polyobjsector->ceilingheight <= gl_frontsector->ceilingheight
&& (viewz > polyobjsector->ceilingheight))
{
light = R_GetPlaneLight(gl_frontsector, polyobjsector->ceilingheight, true);
if (po_ptrs[i]->translucency > 0)
{
FSurfaceInfo Surf;
FBITFIELD blendmode;
memset(&Surf, 0x00, sizeof(Surf));
blendmode = HWR_TranstableToAlpha(po_ptrs[i]->translucency, &Surf);
HWR_AddTransparentPolyobjectFloor(&levelflats[polyobjsector->ceilingpic], po_ptrs[i], true, polyobjsector->ceilingheight,
(light == -1 ? gl_frontsector->lightlevel : *gl_frontsector->lightlist[light].lightlevel), Surf.PolyColor.s.alpha, polyobjsector, blendmode, (light == -1 ? gl_frontsector->extra_colormap : *gl_frontsector->lightlist[light].extra_colormap));
}
else
{
HWR_GetLevelFlat(&levelflats[polyobjsector->ceilingpic], R_NoEncore(polyobjsector, &levelflats[polyobjsector->ceilingpic], true));
HWR_RenderPolyObjectPlane(po_ptrs[i], true, polyobjsector->ceilingheight, PF_Occlude,
(light == -1 ? gl_frontsector->lightlevel : *gl_frontsector->lightlist[light].lightlevel), &levelflats[polyobjsector->ceilingpic],
polyobjsector, 255, (light == -1 ? gl_frontsector->extra_colormap : *gl_frontsector->lightlist[light].extra_colormap));
}
}
}
}
static FBITFIELD HWR_RippleBlend(sector_t *sector, ffloor_t *rover, boolean ceiling)
{
return R_IsRipplePlane(sector, rover, ceiling) ? PF_Ripple : 0;
}
// -----------------+
// HWR_Subsector : Determine floor/ceiling planes.
// : Add sprites of things in sector.
// : Draw one or more line segments.
// Notes : Sets gl_cursectorlight to the light of the parent sector, to modulate wall textures
// -----------------+
static void HWR_Subsector(size_t num)
{
INT16 count;
seg_t *line;
subsector_t *sub;
static sector_t tempsec; //SoM: 4/7/2000
INT32 floorlightlevel;
INT32 ceilinglightlevel;
INT32 locFloorHeight, locCeilingHeight;
INT32 cullFloorHeight, cullCeilingHeight;
INT32 light = 0;
extracolormap_t *floorcolormap;
extracolormap_t *ceilingcolormap;
ffloor_t *rover;
#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)
{
// subsector
sub = &subsectors[num];
// sector
gl_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];
gl_frontsector = sub->sector;
count = 0;
line = NULL;
}
//SoM: 4/7/2000: Test to make Boom water work in Hardware mode.
gl_frontsector = R_FakeFlat(gl_frontsector, &tempsec, &floorlightlevel,
&ceilinglightlevel, false);
//FIXME: Use floorlightlevel and ceilinglightlevel insted of lightlevel.
floorcolormap = ceilingcolormap = gl_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;
//gl_cursectorlight.red = light;
//gl_cursectorlight.green = light;
//gl_cursectorlight.blue = light;
//gl_cursectorlight.alpha = light;
// ----- end special tricks -----
cullFloorHeight = P_GetSectorFloorZAt (gl_frontsector, viewx, viewy);
cullCeilingHeight = P_GetSectorCeilingZAt(gl_frontsector, viewx, viewy);
locFloorHeight = P_GetSectorFloorZAt (gl_frontsector, gl_frontsector->soundorg.x, gl_frontsector->soundorg.y);
locCeilingHeight = P_GetSectorCeilingZAt(gl_frontsector, gl_frontsector->soundorg.x, gl_frontsector->soundorg.y);
if (gl_frontsector->ffloors)
{
boolean anyMoved = gl_frontsector->moved;
if (anyMoved == false)
{
for (rover = gl_frontsector->ffloors; rover; rover = rover->next)
{
sector_t *controlSec = &sectors[rover->secnum];
if (controlSec->moved == true)
{
anyMoved = true;
break;
}
}
}
if (anyMoved == true)
{
gl_frontsector->numlights = sub->sector->numlights = 0;
R_Prep3DFloors(gl_frontsector, locCeilingHeight);
sub->sector->lightlist = gl_frontsector->lightlist;
sub->sector->numlights = gl_frontsector->numlights;
sub->sector->moved = gl_frontsector->moved = false;
}
light = R_GetPlaneLight(gl_frontsector, locFloorHeight, false);
if (gl_frontsector->floorlightsec == -1 && !gl_frontsector->floorlightabsolute)
floorlightlevel = max(0, min(255, *gl_frontsector->lightlist[light].lightlevel + gl_frontsector->floorlightlevel));
floorcolormap = *gl_frontsector->lightlist[light].extra_colormap;
light = R_GetPlaneLight(gl_frontsector, locCeilingHeight, false);
if (gl_frontsector->ceilinglightsec == -1 && !gl_frontsector->ceilinglightabsolute)
ceilinglightlevel = max(0, min(255, *gl_frontsector->lightlist[light].lightlevel + gl_frontsector->ceilinglightlevel));
ceilingcolormap = *gl_frontsector->lightlist[light].extra_colormap;
}
sub->sector->extra_colormap = gl_frontsector->extra_colormap;
// render floor ?
#ifdef DOPLANES
// yeah, easy backface cull! :)
if (cullFloorHeight < dup_viewz)
{
if (gl_frontsector->floorpic != skyflatnum)
{
if (sub->validcount != validcount)
{
HWR_GetLevelFlat(&levelflats[gl_frontsector->floorpic], R_NoEncore(gl_frontsector, &levelflats[gl_frontsector->floorpic], false));
HWR_RenderPlane(sub, &extrasubsectors[num], false,
// Hack to make things continue to work around slopes.
locFloorHeight == cullFloorHeight ? locFloorHeight : gl_frontsector->floorheight,
// We now return you to your regularly scheduled rendering.
PF_Occlude | HWR_RippleBlend(gl_frontsector, NULL, false),
floorlightlevel, &levelflats[gl_frontsector->floorpic], NULL, 255, floorcolormap);
}
}
}
if (cullCeilingHeight > dup_viewz)
{
if (gl_frontsector->ceilingpic != skyflatnum)
{
if (sub->validcount != validcount)
{
HWR_GetLevelFlat(&levelflats[gl_frontsector->ceilingpic], R_NoEncore(gl_frontsector, &levelflats[gl_frontsector->ceilingpic], true));
HWR_RenderPlane(sub, &extrasubsectors[num], true,
// Hack to make things continue to work around slopes.
locCeilingHeight == cullCeilingHeight ? locCeilingHeight : gl_frontsector->ceilingheight,
// We now return you to your regularly scheduled rendering.
PF_Occlude | HWR_RippleBlend(gl_frontsector, NULL, true),
ceilinglightlevel, &levelflats[gl_frontsector->ceilingpic], NULL, 255, ceilingcolormap);
}
}
}
#ifdef R_FAKEFLOORS
if (gl_frontsector->ffloors)
{
/// \todo fix light, xoffs, yoffs, extracolormap ?
for (rover = gl_frontsector->ffloors;
rover; rover = rover->next)
{
fixed_t cullHeight, centerHeight;
// bottom plane
cullHeight = P_GetFFloorBottomZAt(rover, viewx, viewy);
centerHeight = P_GetFFloorBottomZAt(rover, gl_frontsector->soundorg.x, gl_frontsector->soundorg.y);
if (!(rover->fofflags & FOF_EXISTS) || !(rover->fofflags & FOF_RENDERPLANES))
continue;
if (sub->validcount == validcount)
continue;
if (centerHeight <= locCeilingHeight &&
centerHeight >= locFloorHeight &&
((dup_viewz < cullHeight && (rover->fofflags & FOF_BOTHPLANES || !(rover->fofflags & FOF_INVERTPLANES))) ||
(dup_viewz > cullHeight && (rover->fofflags & FOF_BOTHPLANES || rover->fofflags & FOF_INVERTPLANES))))
{
if (rover->fofflags & FOF_FOG)
{
UINT8 alpha;
light = R_GetPlaneLight(gl_frontsector, centerHeight, dup_viewz < cullHeight ? true : false);
alpha = HWR_FogBlockAlpha(*gl_frontsector->lightlist[light].lightlevel, rover->master->frontsector->extra_colormap);
HWR_AddTransparentFloor(0,
&extrasubsectors[num],
false,
*rover->bottomheight,
*gl_frontsector->lightlist[light].lightlevel,
alpha, rover->master->frontsector, PF_Fog|PF_NoTexture,
true, rover->master->frontsector->extra_colormap);
}
else if (rover->fofflags & FOF_TRANSLUCENT
&& (rover->alpha < 256 || rover->blend)) // SoM: Flags are more efficient
{
FBITFIELD blendmode = HWR_GetBlendModeFlag(rover->blend) | HWR_RippleBlend(gl_frontsector, rover, false);
light = R_GetPlaneLight(gl_frontsector, centerHeight, dup_viewz < cullHeight ? true : false);
HWR_AddTransparentFloor(&levelflats[*rover->bottompic],
&extrasubsectors[num],
false,
*rover->bottomheight,
*gl_frontsector->lightlist[light].lightlevel,
max(0, min(rover->alpha, 255)), rover->master->frontsector, blendmode,
false, *gl_frontsector->lightlist[light].extra_colormap);
}
else
{
HWR_GetLevelFlat(&levelflats[*rover->bottompic], R_NoEncore(gl_frontsector, &levelflats[*rover->bottompic], false));
light = R_GetPlaneLight(gl_frontsector, centerHeight, dup_viewz < cullHeight ? true : false);
HWR_RenderPlane(sub, &extrasubsectors[num], false, *rover->bottomheight, HWR_RippleBlend(gl_frontsector, rover, false) | PF_Occlude, *gl_frontsector->lightlist[light].lightlevel, &levelflats[*rover->bottompic],
rover->master->frontsector, 255, *gl_frontsector->lightlist[light].extra_colormap);
}
}
// top plane
cullHeight = P_GetFFloorTopZAt(rover, viewx, viewy);
centerHeight = P_GetFFloorTopZAt(rover, gl_frontsector->soundorg.x, gl_frontsector->soundorg.y);
if (centerHeight >= locFloorHeight &&
centerHeight <= locCeilingHeight &&
((dup_viewz > cullHeight && (rover->fofflags & FOF_BOTHPLANES || !(rover->fofflags & FOF_INVERTPLANES))) ||
(dup_viewz < cullHeight && (rover->fofflags & FOF_BOTHPLANES || rover->fofflags & FOF_INVERTPLANES))))
{
if (rover->fofflags & FOF_FOG)
{
UINT8 alpha;
light = R_GetPlaneLight(gl_frontsector, centerHeight, dup_viewz < cullHeight ? true : false);
alpha = HWR_FogBlockAlpha(*gl_frontsector->lightlist[light].lightlevel, rover->master->frontsector->extra_colormap);
HWR_AddTransparentFloor(0,
&extrasubsectors[num],
true,
*rover->topheight,
*gl_frontsector->lightlist[light].lightlevel,
alpha, rover->master->frontsector, PF_Fog|PF_NoTexture,
true, rover->master->frontsector->extra_colormap);
}
else if (rover->fofflags & FOF_TRANSLUCENT
&& (rover->alpha < 256 || rover->blend)) // SoM: Flags are more efficient
{
FBITFIELD blendmode = HWR_GetBlendModeFlag(rover->blend) | HWR_RippleBlend(gl_frontsector, rover, false);
light = R_GetPlaneLight(gl_frontsector, centerHeight, dup_viewz < cullHeight ? true : false);
HWR_AddTransparentFloor(&levelflats[*rover->toppic],
&extrasubsectors[num],
true,
*rover->topheight,
*gl_frontsector->lightlist[light].lightlevel,
max(0, min(rover->alpha, 255)), rover->master->frontsector, blendmode,
false, *gl_frontsector->lightlist[light].extra_colormap);
}
else
{
HWR_GetLevelFlat(&levelflats[*rover->toppic], R_NoEncore(gl_frontsector, &levelflats[*rover->toppic], true));
light = R_GetPlaneLight(gl_frontsector, centerHeight, dup_viewz < cullHeight ? true : false);
HWR_RenderPlane(sub, &extrasubsectors[num], true, *rover->topheight, HWR_RippleBlend(gl_frontsector, rover, true) | PF_Occlude, *gl_frontsector->lightlist[light].lightlevel, &levelflats[*rover->toppic],
rover->master->frontsector, 255, *gl_frontsector->lightlist[light].extra_colormap);
}
}
}
}
#endif
#endif //doplanes
// 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);
}
// for render stats
ps_numpolyobjects += numpolys;
// Sort polyobjects
R_SortPolyObjects(sub);
// Draw polyobject lines.
HWR_AddPolyObjectSegs();
if (sub->validcount != validcount) // This validcount situation seems to let us know that the floors have already been drawn.
{
// Draw polyobject planes
HWR_AddPolyObjectPlanes();
}
}
// 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)
{
if (sub->sector->validcount != validcount)
{
// draw sprites first, coz they are clipped to the solidsegs of
// subsectors more 'in front'
HWR_AddSprites(gl_frontsector);
}
//Hurdler: at this point validcount must be the same, but is not because
// gl_frontsector doesn't point anymore to sub->sector due to
// the call gl_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--)
{
if (LIKELY(!line->glseg && !line->polyseg)) // ignore segs that belong to polyobjects
HWR_AddLine(line);
line++;
}
}
sub->validcount = validcount;
}
//
// Renders all subsectors below a given node,
// traversing subtree recursively.
// Just call with BSP root.
static void HWR_RenderBSPNode(INT32 bspnum)
{
const node_t *bsp;
INT32 side;
ps_numbspcalls++;
while (!(bspnum & NF_SUBSECTOR)) // Found a subsector?
{
bsp = &nodes[bspnum];
// Decide which side the view point is on.
side = R_PointOnSideFast(viewx, viewy, bsp);
// Recursively divide front space.
HWR_RenderBSPNode(bsp->children[side]);
// Possibly divide back space
if (!(HWR_CheckBBox(bsp->bbox[side^1])))
return;
bspnum = bsp->children[side^1];
}
// e6y: support for extended nodes
HWR_Subsector(bspnum == -1 ? 0 : 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;
}
gl_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 (gl_viewangletox[i]>x)
i++;
gl_xtoviewangle[x] = (i<<ANGLETOFINESHIFT) - ANGLE_90;
}
// Take out the fencepost cases from viewangletox.
for (i = 0; i < FINEANGLES/2; i++)
{
if (gl_viewangletox[i] == -1)
gl_viewangletox[i] = 0;
else if (gl_viewangletox[i] == grviewwidth+1)
gl_viewangletox[i] = grviewwidth;
}
gl_clipangle = gl_xtoviewangle[0];
}
// ==========================================================================
// gl_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 gl_visspritecount;
static gl_vissprite_t *gl_visspritechunks[MAXVISSPRITES >> VISSPRITECHUNKBITS] = {NULL};
// --------------------------------------------------------------------------
// HWR_ClearSprites
// Called at frame start.
// --------------------------------------------------------------------------
static void HWR_ClearSprites(void)
{
gl_visspritecount = 0;
}
// --------------------------------------------------------------------------
// HWR_NewVisSprite
// --------------------------------------------------------------------------
static gl_vissprite_t gl_overflowsprite;
static gl_vissprite_t *HWR_GetVisSprite(UINT32 num)
{
UINT32 chunk = num >> VISSPRITECHUNKBITS;
// Allocate chunk if necessary
if (!gl_visspritechunks[chunk])
Z_Malloc(sizeof(gl_vissprite_t) * VISSPRITESPERCHUNK, PU_LEVEL, &gl_visspritechunks[chunk]);
return gl_visspritechunks[chunk] + (num & VISSPRITEINDEXMASK);
}
static gl_vissprite_t *HWR_NewVisSprite(void)
{
if (gl_visspritecount == MAXVISSPRITES)
return &gl_overflowsprite;
return HWR_GetVisSprite(gl_visspritecount++);
}
// A hack solution for transparent surfaces appearing on top of linkdraw sprites.
// Keep a list of linkdraw sprites and draw their shapes to the z-buffer after all other
// sprite drawing is done. (effectively the z-buffer drawing of linkdraw sprites is delayed)
// NOTE: This will no longer be necessary once full translucent sorting is implemented, where
// translucent sprites and surfaces are sorted together.
typedef struct
{
FOutVector verts[4];
gl_vissprite_t *spr;
} zbuffersprite_t;
// this list is used to store data about linkdraw sprites
zbuffersprite_t linkdrawlist[MAXVISSPRITES];
UINT32 linkdrawcount = 0;
// add the necessary data to the list for delayed z-buffer drawing
static void HWR_LinkDrawHackAdd(FOutVector *verts, gl_vissprite_t *spr)
{
if (linkdrawcount < MAXVISSPRITES)
{
memcpy(linkdrawlist[linkdrawcount].verts, verts, sizeof(FOutVector) * 4);
linkdrawlist[linkdrawcount].spr = spr;
linkdrawcount++;
}
}
// process and clear the list of sprites for delayed z-buffer drawing
static void HWR_LinkDrawHackFinish(void)
{
UINT32 i;
FSurfaceInfo surf;
surf.PolyColor.rgba = 0xFFFFFFFF;
surf.TintColor.rgba = 0xFFFFFFFF;
surf.FadeColor.rgba = 0xFFFFFFFF;
surf.LightInfo.light_level = 0;
surf.LightInfo.fade_start = 0;
surf.LightInfo.fade_end = 31;
surf.LightInfo.newfade = false;
for (i = 0; i < linkdrawcount; i++)
{
// draw sprite shape, only to z-buffer
HWR_GetPatch(linkdrawlist[i].spr->gpatch);
HWR_ProcessPolygon(&surf, linkdrawlist[i].verts, 4, PF_Translucent|PF_Occlude|PF_Invisible, 0, false);
}
// reset list
linkdrawcount = 0;
}
//
// HWR_DoCulling
// Hardware version of R_DoCulling
// (see r_main.c)
static boolean HWR_DoCulling(line_t *cullheight, line_t *viewcullheight, float vz, float bottomh, float toph)
{
float cullplane;
if (!cullheight)
return false;
cullplane = FIXED_TO_FLOAT(cullheight->frontsector->floorheight);
if (cullheight->args[1]) // Group culling
{
if (!viewcullheight)
return false;
// Make sure this is part of the same group
if (viewcullheight->frontsector == cullheight->frontsector)
{
// OK, we can cull
if (vz > cullplane && toph < cullplane) // Cull if below plane
return true;
if (bottomh > cullplane && vz <= cullplane) // Cull if above plane
return true;
}
}
else // Quick culling
{
if (vz > cullplane && toph < cullplane) // Cull if below plane
return true;
if (bottomh > cullplane && vz <= cullplane) // Cull if above plane
return true;
}
return false;
}
static patch_t *shadowpatch = NULL;
static void HWR_DrawDropShadow(mobj_t *thing, fixed_t scale)
{
patch_t *gpatch = NULL;
FOutVector shadowVerts[4];
FSurfaceInfo sSurf;
float fscale; float fx; float fy; float offset;
float ph;
extracolormap_t *colormap = NULL;
FBITFIELD blendmode = PF_ReverseSubtract;
INT32 shader = SHADER_NONE;
UINT8 i;
SINT8 flip = P_MobjFlip(thing);
INT32 light;
fixed_t scalemul;
fixed_t groundz;
fixed_t slopez;
pslope_t *groundslope;
// uncapped/interpolation
interpmobjstate_t interp = {0};
R_InterpolateMobjState(thing, R_GetTimeFrac(RTF_LEVEL), &interp);
// sprite offset
interp.x += thing->sprxoff;
interp.y += thing->spryoff;
interp.z += thing->sprzoff;
groundz = R_GetShadowZ(thing, &groundslope);
if (!shadowpatch || !shadowpatch->hardware)
{
CONS_Debug(DBG_RENDER, "remaking shadowsprite\n");
shadowpatch = (patch_t *)W_CachePatchName("DSHADOW", PU_SPRITE);
}
gpatch = shadowpatch;
if (!gpatch || !gpatch->hardware || !((GLPatch_t *)gpatch->hardware)->mipmap->format)
return;
HWR_GetPatch(gpatch);
scalemul = FixedMul(scale, (thing->radius * 2) / gpatch->height);
ph = (float)gpatch->height;
fscale = FIXED_TO_FLOAT(scalemul);
fx = FIXED_TO_FLOAT(interp.x);
fy = FIXED_TO_FLOAT(interp.y);
if (fscale > 0.0)
{
offset = (ph / 2) * fscale;
}
else
{
return;
}
// 3--2
// | /|
// |/ |
// 0--1
shadowVerts[2].x = shadowVerts[3].x = fx + offset;
shadowVerts[1].x = shadowVerts[0].x = fx - offset;
shadowVerts[1].z = shadowVerts[2].z = fy - offset;
shadowVerts[0].z = shadowVerts[3].z = fy + offset;
for (i = 0; i < 4; i++)
{
float oldx = shadowVerts[i].x;
float oldy = shadowVerts[i].z;
shadowVerts[i].x = fx + ((oldx - fx) * gl_viewcos) - ((oldy - fy) * gl_viewsin);
shadowVerts[i].z = fy + ((oldx - fx) * gl_viewsin) + ((oldy - fy) * gl_viewcos);
}
if (groundslope)
{
for (i = 0; i < 4; i++)
{
slopez = P_GetSlopeZAt(groundslope, FLOAT_TO_FIXED(shadowVerts[i].x), FLOAT_TO_FIXED(shadowVerts[i].z));
shadowVerts[i].y = FIXED_TO_FLOAT(slopez) + flip * 0.05f;
}
}
else
{
for (i = 0; i < 4; i++)
shadowVerts[i].y = FIXED_TO_FLOAT(groundz) + flip * 0.05f;
}
shadowVerts[0].s = shadowVerts[3].s = 0;
shadowVerts[2].s = shadowVerts[1].s = ((GLPatch_t *)gpatch->hardware)->max_s;
shadowVerts[3].t = shadowVerts[2].t = 0;
shadowVerts[0].t = shadowVerts[1].t = ((GLPatch_t *)gpatch->hardware)->max_t;
if (!(thing->renderflags & RF_NOCOLORMAPS))
{
if (thing->subsector->sector->numlights)
{
// Always use the light at the top instead of whatever I was doing before
light = R_GetPlaneLight(thing->subsector->sector, groundz, false);
if (*thing->subsector->sector->lightlist[light].extra_colormap)
colormap = *thing->subsector->sector->lightlist[light].extra_colormap;
}
else if (thing->subsector->sector->extra_colormap)
colormap = thing->subsector->sector->extra_colormap;
}
HWR_Lighting(&sSurf, 255, colormap, P_SectorUsesDirectionalLighting(thing->subsector->sector));
sSurf.PolyColor.s.alpha = 255;
if (thing->whiteshadow == true)
{
blendmode = PF_Additive;
}
if (HWR_UseShader())
{
shader = SHADER_SPRITE;
blendmode |= PF_ColorMapped;
}
HWR_ProcessPolygon(&sSurf, shadowVerts, 4, blendmode|PF_Modulated, shader, false);
}
// This is expecting a pointer to an array containing 4 wallVerts for a sprite
static void HWR_RotateSpritePolyToAim(gl_vissprite_t *spr, FOutVector *wallVerts, const boolean precip)
{
if (cv_glspritebillboarding.value
&& spr && spr->mobj && !R_ThingIsPaperSprite(spr->mobj)
&& wallVerts)
{
// uncapped/interpolation
interpmobjstate_t interp = {0};
// do interpolation
if (spr->precip)
{
R_InterpolatePrecipMobjState((precipmobj_t *)spr->mobj, R_GetTimeFrac(RTF_LEVEL), &interp);
}
else
{
R_InterpolateMobjState(spr->mobj, R_GetTimeFrac(RTF_LEVEL), &interp);
}
float basey = FIXED_TO_FLOAT(interp.z);
float lowy = wallVerts[0].y;
if (!precip && P_MobjFlip(spr->mobj) == -1) // precip doesn't have eflags so they can't flip
{
basey = FIXED_TO_FLOAT(spr->mobj->z + spr->mobj->height);
}
// Rotate sprites to fully billboard with the camera
// X, Y, AND Z need to be manipulated for the polys to rotate around the
// origin, because of how the origin setting works I believe that should
// be mobj->z or mobj->z + mobj->height
wallVerts[2].y = wallVerts[3].y = (spr->gzt - basey) * gl_viewludsin + basey;
wallVerts[0].y = wallVerts[1].y = (lowy - basey) * gl_viewludsin + basey;
// translate back to be around 0 before translating back
wallVerts[3].x += ((spr->gzt - basey) * gl_viewludcos) * gl_viewcos;
wallVerts[2].x += ((spr->gzt - basey) * gl_viewludcos) * gl_viewcos;
wallVerts[0].x += ((lowy - basey) * gl_viewludcos) * gl_viewcos;
wallVerts[1].x += ((lowy - basey) * gl_viewludcos) * gl_viewcos;
wallVerts[3].z += ((spr->gzt - basey) * gl_viewludcos) * gl_viewsin;
wallVerts[2].z += ((spr->gzt - basey) * gl_viewludcos) * gl_viewsin;
wallVerts[0].z += ((lowy - basey) * gl_viewludcos) * gl_viewsin;
wallVerts[1].z += ((lowy - basey) * gl_viewludcos) * gl_viewsin;
}
}
static void HWR_SplitSprite(gl_vissprite_t *spr)
{
FOutVector wallVerts[4];
FOutVector baseWallVerts[4]; // This is what the verts should end up as
patch_t *gpatch;
FSurfaceInfo Surf;
extracolormap_t *colormap = NULL;
INT32 lightlevel;
boolean lightset = true;
FBITFIELD blend = 0;
FBITFIELD occlusion;
INT32 shader = SHADER_NONE;
boolean use_linkdraw_hack = false;
UINT8 alpha;
INT32 i;
float realtop, realbot, top, bot;
float ttop, tbot, tmult;
float bheight;
float realheight, heightmult;
const sector_t *sector = spr->mobj->subsector->sector;
const lightlist_t *list = sector->lightlist;
float endrealtop, endrealbot, endtop, endbot;
float endbheight;
float endrealheight;
fixed_t temp;
fixed_t v1x, v1y, v2x, v2y;
gpatch = spr->gpatch;
// 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);
baseWallVerts[0].x = baseWallVerts[3].x = spr->x1;
baseWallVerts[2].x = baseWallVerts[1].x = spr->x2;
baseWallVerts[0].z = baseWallVerts[3].z = spr->z1;
baseWallVerts[1].z = baseWallVerts[2].z = spr->z2;
baseWallVerts[2].y = baseWallVerts[3].y = spr->gzt;
baseWallVerts[0].y = baseWallVerts[1].y = spr->gz;
v1x = FLOAT_TO_FIXED(spr->x1);
v1y = FLOAT_TO_FIXED(spr->z1);
v2x = FLOAT_TO_FIXED(spr->x2);
v2y = FLOAT_TO_FIXED(spr->z2);
if (spr->flip)
{
baseWallVerts[0].s = baseWallVerts[3].s = ((GLPatch_t *)gpatch->hardware)->max_s;
baseWallVerts[2].s = baseWallVerts[1].s = 0;
}
else
{
baseWallVerts[0].s = baseWallVerts[3].s = 0;
baseWallVerts[2].s = baseWallVerts[1].s = ((GLPatch_t *)gpatch->hardware)->max_s;
}
// flip the texture coords (look familiar?)
if (spr->vflip)
{
baseWallVerts[3].t = baseWallVerts[2].t = ((GLPatch_t *)gpatch->hardware)->max_t;
baseWallVerts[0].t = baseWallVerts[1].t = 0;
}
else
{
baseWallVerts[3].t = baseWallVerts[2].t = 0;
baseWallVerts[0].t = baseWallVerts[1].t = ((GLPatch_t *)gpatch->hardware)->max_t;
}
// push it toward the camera to mitigate floor-clipping sprites
if (/*!R_ThingIsPaperSprite(spr->mobj) && */!(spr->mobj->terrain && spr->mobj->terrain->floorClip)) // but not for papersprites or for floorclip
{
// Let dispoffset work first since this adjust each vertex
HWR_RotateSpritePolyToAim(spr, baseWallVerts, false);
// push it toward the camera to mitigate floor-clipping sprites
float sprdist = sqrtf((spr->x1 - gl_viewx)*(spr->x1 - gl_viewx) + (spr->z1 - gl_viewy)*(spr->z1 - gl_viewy) + (spr->gzt - gl_viewz)*(spr->gzt - gl_viewz));
float distfact = ((2.0f*spr->dispoffset) + 20.0f) / sprdist;
for (i = 0; i < 4; i++)
{
baseWallVerts[i].x += (gl_viewx - baseWallVerts[i].x)*distfact;
baseWallVerts[i].z += (gl_viewy - baseWallVerts[i].z)*distfact;
baseWallVerts[i].y += (gl_viewz - baseWallVerts[i].y)*distfact;
}
}
realtop = top = baseWallVerts[3].y;
realbot = bot = baseWallVerts[0].y;
ttop = baseWallVerts[3].t;
tbot = baseWallVerts[0].t;
tmult = (tbot - ttop) / (top - bot);
endrealtop = endtop = baseWallVerts[2].y;
endrealbot = baseWallVerts[1].y;
// copy the contents of baseWallVerts into the drawn wallVerts array
// baseWallVerts is used to know the final shape to easily get the vertex
// co-ordinates
memcpy(wallVerts, baseWallVerts, sizeof(baseWallVerts));
// if sprite has linkdraw, then dont write to z-buffer (by not using PF_Occlude)
// this will result in sprites drawn afterwards to be drawn on top like intended when using linkdraw.
if ((spr->mobj->flags2 & MF2_LINKDRAW) && spr->mobj->tracer)
occlusion = 0;
else
occlusion = PF_Occlude;
// Determine the blendmode and translucency value
{
UINT32 blendmode, trans;
if (spr->mobj->renderflags & RF_BLENDMASK)
blendmode = (spr->mobj->renderflags & RF_BLENDMASK) >> RF_BLENDSHIFT;
else
blendmode = (spr->mobj->frame & FF_BLENDMASK) >> FF_BLENDSHIFT;
if (blendmode)
blendmode++; // realign to constants
if (spr->mobj->renderflags & RF_TRANSMASK)
trans = (spr->mobj->renderflags & RF_TRANSMASK) >> RF_TRANSSHIFT;
else
trans = (spr->mobj->frame & FF_TRANSMASK) >> FF_TRANSSHIFT;
if (trans >= NUMTRANSMAPS)
return; // cap
blend = HWR_SurfaceBlend(blendmode, trans, &Surf);
// if sprite has PF_ALWAYSONTOP, draw on top of everything.
if (cv_debugrender_spriteclip.value || spr->mobj->renderflags & RF_ALWAYSONTOP)
blend |= PF_NoDepthTest;
if (!trans && !blendmode)
{
// 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
blend |= occlusion;
if (!occlusion) use_linkdraw_hack = true;
}
}
if (HWR_UseShader())
{
shader = SHADER_SPRITE;
blend |= PF_ColorMapped;
}
alpha = Surf.PolyColor.s.alpha;
// Start with the lightlevel and colormap from the top of the sprite
lightlevel = *list[sector->numlights - 1].lightlevel;
if (!R_ThingIsFullBright(spr->mobj) && !(spr->mobj->renderflags & RF_NOCOLORMAPS))
colormap = *list[sector->numlights - 1].extra_colormap;
i = 0;
temp = FLOAT_TO_FIXED(realtop);
lightset = HWR_OverrideObjectLightLevel(spr->mobj, &lightlevel);
for (i = 1; i < sector->numlights; i++)
{
fixed_t h = P_GetLightZAt(&sector->lightlist[i], spr->mobj->x, spr->mobj->y);
if (h <= temp)
{
if (!lightset)
lightlevel = *list[i-1].lightlevel > 255 ? 255 : *list[i-1].lightlevel;
if (!R_ThingIsFullBright(spr->mobj) && !(spr->mobj->renderflags & RF_NOCOLORMAPS))
colormap = *list[i-1].extra_colormap;
break;
}
}
if (!lightset)
HWR_ObjectLightLevelPost(spr, sector, &lightlevel, false);
for (i = 0; i < sector->numlights; i++)
{
if (endtop < endrealbot && top < realbot)
return;
// even if we aren't changing colormap or lightlevel, we still need to continue drawing down the sprite
if (!(list[i].flags & FOF_NOSHADE) && (list[i].flags & FOF_CUTSPRITES))
{
if (!lightset)
{
lightlevel = *list[i].lightlevel > 255 ? 255 : *list[i].lightlevel;
HWR_ObjectLightLevelPost(spr, sector, &lightlevel, false);
}
if (!R_ThingIsFullBright(spr->mobj) && !(spr->mobj->renderflags & RF_NOCOLORMAPS))
colormap = *list[i].extra_colormap;
}
if (i + 1 < sector->numlights)
{
temp = P_GetLightZAt(&list[i+1], v1x, v1y);
bheight = FIXED_TO_FLOAT(temp);
temp = P_GetLightZAt(&list[i+1], v2x, v2y);
endbheight = FIXED_TO_FLOAT(temp);
}
else
{
bheight = realbot;
endbheight = endrealbot;
}
if (endbheight >= endtop && bheight >= top)
continue;
bot = bheight;
if (bot < realbot)
bot = realbot;
endbot = endbheight;
if (endbot < endrealbot)
endbot = endrealbot;
wallVerts[3].t = ttop + ((realtop - top) * tmult);
wallVerts[2].t = ttop + ((endrealtop - endtop) * tmult);
wallVerts[0].t = ttop + ((realtop - bot) * tmult);
wallVerts[1].t = ttop + ((endrealtop - endbot) * tmult);
wallVerts[3].y = top;
wallVerts[2].y = endtop;
wallVerts[0].y = bot;
wallVerts[1].y = endbot;
// The x and y only need to be adjusted in the case that it's not a papersprite
if (cv_glspritebillboarding.value
&& spr->mobj && !R_ThingIsPaperSprite(spr->mobj))
{
// Get the x and z of the vertices so billboarding draws correctly
realheight = realbot - realtop;
endrealheight = endrealbot - endrealtop;
heightmult = (realtop - top) / realheight;
wallVerts[3].x = baseWallVerts[3].x + (baseWallVerts[3].x - baseWallVerts[0].x) * heightmult;
wallVerts[3].z = baseWallVerts[3].z + (baseWallVerts[3].z - baseWallVerts[0].z) * heightmult;
heightmult = (endrealtop - endtop) / endrealheight;
wallVerts[2].x = baseWallVerts[2].x + (baseWallVerts[2].x - baseWallVerts[1].x) * heightmult;
wallVerts[2].z = baseWallVerts[2].z + (baseWallVerts[2].z - baseWallVerts[1].z) * heightmult;
heightmult = (realtop - bot) / realheight;
wallVerts[0].x = baseWallVerts[3].x + (baseWallVerts[3].x - baseWallVerts[0].x) * heightmult;
wallVerts[0].z = baseWallVerts[3].z + (baseWallVerts[3].z - baseWallVerts[0].z) * heightmult;
heightmult = (endrealtop - endbot) / endrealheight;
wallVerts[1].x = baseWallVerts[2].x + (baseWallVerts[2].x - baseWallVerts[1].x) * heightmult;
wallVerts[1].z = baseWallVerts[2].z + (baseWallVerts[2].z - baseWallVerts[1].z) * heightmult;
}
HWR_Lighting(&Surf, lightlevel, colormap, P_SectorUsesDirectionalLighting(sector) && !R_ThingIsFullBright(spr->mobj));
Surf.PolyColor.s.alpha = alpha;
HWR_ProcessPolygon(&Surf, wallVerts, 4, blend|PF_Modulated, shader, false);
if (use_linkdraw_hack)
HWR_LinkDrawHackAdd(wallVerts, spr);
top = bot;
endtop = endbot;
}
bot = realbot;
endbot = endrealbot;
if (endtop <= endrealbot && top <= realbot)
return;
// If we're ever down here, somehow the above loop hasn't draw all the light levels of sprite
wallVerts[3].t = ttop + ((realtop - top) * tmult);
wallVerts[2].t = ttop + ((endrealtop - endtop) * tmult);
wallVerts[0].t = ttop + ((realtop - bot) * tmult);
wallVerts[1].t = ttop + ((endrealtop - endbot) * tmult);
wallVerts[3].y = top;
wallVerts[2].y = endtop;
wallVerts[0].y = bot;
wallVerts[1].y = endbot;
HWR_Lighting(&Surf, lightlevel, colormap, P_SectorUsesDirectionalLighting(sector));
Surf.PolyColor.s.alpha = alpha;
HWR_ProcessPolygon(&Surf, wallVerts, 4, blend|PF_Modulated, shader, false);
if (use_linkdraw_hack)
HWR_LinkDrawHackAdd(wallVerts, spr);
}
static void HWR_DrawBoundingBox(gl_vissprite_t *vis)
{
FOutVector v[24];
FSurfaceInfo Surf = {0};
//
// create a cube (side view)
//
// 5--4 3
// |
// |
// 0--1 2
//
// repeat this 4 times (overhead)
//
//
// 17 20 21 11
// 16 15 14 10
// 27 22 *--* 07 12
// | |
// 26 23 *--* 06 13
// 24 00 01 02
// 25 05 04 03
//
v[000].x = v[005].x = v[015].x = v[016].x = v[017].x = v[020].x =
v[022].x = v[023].x = v[024].x = v[025].x = v[026].x = v[027].x = vis->x1; // west
v[001].x = v[002].x = v[003].x = v[004].x = v[006].x = v[007].x =
v[010].x = v[011].x = v[012].x = v[013].x = v[014].x = v[021].x = vis->x2; // east
v[000].z = v[001].z = v[002].z = v[003].z = v[004].z = v[005].z =
v[006].z = v[013].z = v[023].z = v[024].z = v[025].z = v[026].z = vis->z1; // south
v[007].z = v[010].z = v[011].z = v[012].z = v[014].z = v[015].z =
v[016].z = v[017].z = v[020].z = v[021].z = v[022].z = v[027].z = vis->z2; // north
v[000].y = v[001].y = v[002].y = v[006].y = v[007].y = v[010].y =
v[014].y = v[015].y = v[016].y = v[022].y = v[023].y = v[024].y = vis->gz; // bottom
v[003].y = v[004].y = v[005].y = v[011].y = v[012].y = v[013].y =
v[017].y = v[020].y = v[021].y = v[025].y = v[026].y = v[027].y = vis->gzt; // top
Surf.PolyColor = V_GetColor(R_GetBoundingBoxColor(vis->mobj));
HWR_ProcessPolygon(&Surf, v, 24, PF_Modulated|PF_NoTexture|PF_WireFrame, SHADER_NONE, false);
}
// -----------------+
// HWR_DrawSprite : Draw flat sprites
// : (monsters, bonuses, weapons, lights, ...)
// Returns :
// -----------------+
static void HWR_DrawSprite(gl_vissprite_t *spr)
{
FOutVector wallVerts[4];
patch_t *gpatch;
FSurfaceInfo Surf;
const boolean splat = R_ThingIsFloorSprite(spr->mobj);
if (!spr->mobj)
return;
if (!spr->mobj->subsector)
return;
if (spr->mobj->subsector->sector->numlights
&& (spr->mobj->renderflags & RF_ABSOLUTELIGHTLEVEL) == 0
&& !splat)
{
HWR_SplitSprite(spr);
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 = spr->gpatch;
#ifdef ALAM_LIGHTING
if (!(spr->mobj->flags2 & MF2_DEBRIS) && (spr->mobj->sprite != SPR_PLAY))
HWR_DL_AddLight(spr, gpatch);
#endif
// create the sprite billboard
//
// 3--2
// | /|
// |/ |
// 0--1
if (splat)
{
F2DCoord verts[4];
F2DCoord rotated[4];
angle_t angle;
float ca, sa;
float w, h;
float xscale, yscale;
float xoffset, yoffset;
float leftoffset, topoffset;
float scale = spr->scale;
float zoffset = (P_MobjFlip(spr->mobj) * 0.05f);
pslope_t *splatslope = NULL;
INT32 i;
renderflags_t renderflags = spr->renderflags;
if (renderflags & RF_SHADOWEFFECTS)
scale *= spr->shadowscale;
if (spr->rotateflags & SRF_3D || renderflags & RF_NOSPLATBILLBOARD)
angle = spr->angle;
else
angle = viewangle;
if (!spr->rotated)
angle += spr->mobj->rollangle;
angle = -angle;
angle += ANGLE_90;
topoffset = spr->spriteyoffset;
leftoffset = spr->spritexoffset;
if (spr->flip)
leftoffset = ((float)gpatch->width - leftoffset);
xscale = spr->scale * spr->spritexscale;
yscale = spr->scale * spr->spriteyscale;
xoffset = leftoffset * xscale;
yoffset = topoffset * yscale;
w = (float)gpatch->width * xscale;
h = (float)gpatch->height * yscale;
// Set positions
// 3--2
// | |
// 0--1
verts[3].x = -xoffset;
verts[3].y = yoffset;
verts[2].x = w - xoffset;
verts[2].y = yoffset;
verts[1].x = w - xoffset;
verts[1].y = -h + yoffset;
verts[0].x = -xoffset;
verts[0].y = -h + yoffset;
ca = FIXED_TO_FLOAT(FINECOSINE((-angle)>>ANGLETOFINESHIFT));
sa = FIXED_TO_FLOAT(FINESINE((-angle)>>ANGLETOFINESHIFT));
// Rotate
for (i = 0; i < 4; i++)
{
rotated[i].x = (verts[i].x * ca) - (verts[i].y * sa);
rotated[i].y = (verts[i].x * sa) + (verts[i].y * ca);
}
// Translate
for (i = 0; i < 4; i++)
{
wallVerts[i].x = rotated[i].x + spr->x1;
wallVerts[i].z = rotated[i].y + spr->z1;
}
if (renderflags & (RF_SLOPESPLAT | RF_OBJECTSLOPESPLAT))
{
pslope_t *standingslope = spr->mobj->standingslope; // The slope that the object is standing on.
// The slope that was defined for the sprite.
if (renderflags & RF_SLOPESPLAT)
splatslope = spr->mobj->floorspriteslope;
if (standingslope && (renderflags & RF_OBJECTSLOPESPLAT))
splatslope = standingslope;
}
// Set vertical position
if (splatslope)
{
for (i = 0; i < 4; i++)
{
fixed_t slopez = P_GetSlopeZAt(splatslope, FLOAT_TO_FIXED(wallVerts[i].x), FLOAT_TO_FIXED(wallVerts[i].z));
wallVerts[i].y = FIXED_TO_FLOAT(slopez) + zoffset;
}
}
else
{
for (i = 0; i < 4; i++)
wallVerts[i].y = FIXED_TO_FLOAT(spr->gz) + zoffset;
}
}
else
{
// 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->gzt;
wallVerts[0].y = wallVerts[1].y = spr->gz;
// 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[3].z = spr->z1;
wallVerts[1].z = wallVerts[2].z = spr->z2;
}
// 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);
if (spr->flip)
{
wallVerts[0].s = wallVerts[3].s = ((GLPatch_t *)gpatch->hardware)->max_s;
wallVerts[2].s = wallVerts[1].s = 0;
}else{
wallVerts[0].s = wallVerts[3].s = 0;
wallVerts[2].s = wallVerts[1].s = ((GLPatch_t *)gpatch->hardware)->max_s;
}
// flip the texture coords (look familiar?)
if (spr->vflip)
{
wallVerts[3].t = wallVerts[2].t = ((GLPatch_t *)gpatch->hardware)->max_t;
wallVerts[0].t = wallVerts[1].t = 0;
}else{
wallVerts[3].t = wallVerts[2].t = 0;
wallVerts[0].t = wallVerts[1].t = ((GLPatch_t *)gpatch->hardware)->max_t;
}
float sprdist = 0.0f, distfact = 0.0f;
size_t i;
if (!splat /*&& !R_ThingIsPaperSprite(spr->mobj)*/ && !(spr->mobj->terrain && spr->mobj->terrain->floorClip))
{
// Let dispoffset work first since this adjust each vertex
HWR_RotateSpritePolyToAim(spr, wallVerts, false);
// push it toward the camera to mitigate floor-clipping sprites
sprdist = sqrtf((spr->x1 - gl_viewx)*(spr->x1 - gl_viewx) + (spr->z1 - gl_viewy)*(spr->z1 -gl_viewy)+ (spr->gzt - gl_viewz)*(spr->gzt - gl_viewz));
distfact = ((2.0f* spr->dispoffset) + 20.0f) / sprdist;
for (i = 0; i < 4; i++)
{
wallVerts[i].x += (gl_viewx - wallVerts[i].x)*distfact;
wallVerts[i].z += (gl_viewy - wallVerts[i].z)*distfact;
wallVerts[i].y += (gl_viewz - wallVerts[i].y)*distfact;
}
}
else if (R_ThingIsFloorSprite(spr->mobj))
{
sprdist = sqrtf((spr->x1 - gl_viewx)*(spr->x1 - gl_viewx) + (spr->z1 - gl_viewy)*(spr->z1 - gl_viewy));
distfact = (2.0f + 20.0f) / sprdist;
// pull splats out of the floor
for (i = 0; i < 4; i++)
{
wallVerts[i].x += (gl_viewx - wallVerts[i].x)*distfact;
wallVerts[i].z += (gl_viewy - wallVerts[i].z)*distfact;
wallVerts[i].y += (gl_viewz - wallVerts[i].y)*distfact;
}
}
// 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;
INT32 lightlevel = 0;
boolean lightset = HWR_OverrideObjectLightLevel(spr->mobj, &lightlevel);
extracolormap_t *colormap = NULL;
if (!R_ThingIsFullBright(spr->mobj) && !(spr->mobj->renderflags & RF_NOCOLORMAPS))
colormap = sector->extra_colormap;
if (splat && sector->numlights)
{
INT32 light = R_GetPlaneLight(sector, spr->mobj->z, false);
if (!lightset)
lightlevel = *sector->lightlist[light].lightlevel > 255 ? 255 : *sector->lightlist[light].lightlevel;
if (!R_ThingIsFullBright(spr->mobj) && *sector->lightlist[light].extra_colormap && !(spr->mobj->renderflags & RF_NOCOLORMAPS))
colormap = *sector->lightlist[light].extra_colormap;
}
else if (!lightset)
lightlevel = sector->lightlevel > 255 ? 255 : sector->lightlevel;
if (!lightset)
HWR_ObjectLightLevelPost(spr, sector, &lightlevel, false);
HWR_Lighting(&Surf, lightlevel, colormap, P_SectorUsesDirectionalLighting(sector) && !R_ThingIsFullBright(spr->mobj));
}
{
INT32 shader = SHADER_NONE;
FBITFIELD blend = 0;
FBITFIELD occlusion;
boolean use_linkdraw_hack = false;
// if sprite has linkdraw, then dont write to z-buffer (by not using PF_Occlude)
// this will result in sprites drawn afterwards to be drawn on top like intended when using linkdraw.
if ((spr->mobj->flags2 & MF2_LINKDRAW) && spr->mobj->tracer)
occlusion = 0;
else
occlusion = PF_Occlude;
// Determine the blendmode and translucency value
{
UINT32 blendmode, trans;
if (spr->mobj->renderflags & RF_BLENDMASK)
blendmode = (spr->mobj->renderflags & RF_BLENDMASK) >> RF_BLENDSHIFT;
else
blendmode = (spr->mobj->frame & FF_BLENDMASK) >> FF_BLENDSHIFT;
if (blendmode)
blendmode++; // realign to constants
if (spr->mobj->renderflags & RF_TRANSMASK)
trans = (spr->mobj->renderflags & RF_TRANSMASK) >> RF_TRANSSHIFT;
else
trans = (spr->mobj->frame & FF_TRANSMASK) >> FF_TRANSSHIFT;
if (trans >= NUMTRANSMAPS)
return; // cap
blend = HWR_SurfaceBlend(blendmode, trans, &Surf);
// if sprite has PF_ALWAYSONTOP, draw on top of everything.
if (cv_debugrender_spriteclip.value || spr->mobj->renderflags & RF_ALWAYSONTOP)
blend |= PF_NoDepthTest;
if (!trans && !blendmode)
{
// 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
blend |= occlusion;
if (!occlusion) use_linkdraw_hack = true;
}
}
if (spr->renderflags & RF_SHADOWEFFECTS)
{
INT32 alpha = Surf.PolyColor.s.alpha;
alpha -= ((INT32)(spr->shadowheight / 4.0f)) + 75;
if (alpha < 1)
return;
Surf.PolyColor.s.alpha = (UINT8)(alpha);
blend = PF_Translucent|occlusion;
if (!occlusion) use_linkdraw_hack = true;
}
if (HWR_UseShader())
{
shader = SHADER_SPRITE;
blend |= PF_ColorMapped;
}
HWR_ProcessPolygon(&Surf, wallVerts, 4, blend|PF_Modulated, shader, false);
if (use_linkdraw_hack)
HWR_LinkDrawHackAdd(wallVerts, spr);
}
}
#ifdef HWPRECIP
// Sprite drawer for precipitation
static inline void HWR_DrawPrecipitationSprite(gl_vissprite_t *spr)
{
INT32 shader = SHADER_NONE;
FBITFIELD blend = 0;
FOutVector wallVerts[4];
patch_t *gpatch;
FSurfaceInfo Surf;
if (!spr->mobj)
return;
if (!spr->mobj->subsector)
return;
// cache sprite graphics
gpatch = spr->gpatch;
// 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->gzt;
wallVerts[0].y = wallVerts[1].y = spr->gz;
// 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[3].z = spr->z1;
wallVerts[1].z = wallVerts[2].z = spr->z2;
// Let dispoffset work first since this adjust each vertex
HWR_RotateSpritePolyToAim(spr, wallVerts, true);
wallVerts[0].s = wallVerts[3].s = 0;
wallVerts[2].s = wallVerts[1].s = ((GLPatch_t *)gpatch->hardware)->max_s;
wallVerts[3].t = wallVerts[2].t = 0;
wallVerts[0].t = wallVerts[1].t = ((GLPatch_t *)gpatch->hardware)->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);
// colormap test
{
sector_t *sector = spr->mobj->subsector->sector;
UINT8 lightlevel = 255;
extracolormap_t *colormap = sector->extra_colormap;
if (sector->numlights)
{
// Always use the light at the top instead of whatever I was doing before
INT32 light = R_GetPlaneLight(sector, spr->mobj->z + spr->mobj->height, false);
if (!R_ThingIsFullBright(spr->mobj))
lightlevel = *sector->lightlist[light].lightlevel > 255 ? 255 : *sector->lightlist[light].lightlevel;
if (!(spr->mobj->renderflags & RF_NOCOLORMAPS))
{
if (*sector->lightlist[light].extra_colormap)
colormap = *sector->lightlist[light].extra_colormap;
}
}
else
{
if (!R_ThingIsFullBright(spr->mobj))
lightlevel = sector->lightlevel > 255 ? 255 : sector->lightlevel;
if (!(spr->mobj->renderflags & RF_NOCOLORMAPS))
{
if (sector->extra_colormap)
colormap = sector->extra_colormap;
}
}
//lightlevel = 128 + (lightlevel>>1);
HWR_Lighting(&Surf, lightlevel, colormap, P_SectorUsesDirectionalLighting(sector));
}
// Determine the blendmode and translucency value
{
UINT32 blendmode, trans;
if (spr->mobj->renderflags & RF_BLENDMASK)
blendmode = (spr->mobj->renderflags & RF_BLENDMASK) >> RF_BLENDSHIFT;
else
blendmode = (spr->mobj->frame & FF_BLENDMASK) >> FF_BLENDSHIFT;
if (blendmode)
blendmode++; // realign to constants
if (spr->mobj->renderflags & RF_TRANSMASK)
trans = (spr->mobj->renderflags & RF_TRANSMASK) >> RF_TRANSSHIFT;
else
trans = (spr->mobj->frame & FF_TRANSMASK) >> FF_TRANSSHIFT;
if (trans >= NUMTRANSMAPS)
return; // cap
blend = HWR_SurfaceBlend(blendmode, trans, &Surf);
if (!trans && !blendmode)
{
// 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
blend |= PF_Occlude;
}
}
if (HWR_UseShader())
{
shader = SHADER_SPRITE;
blend |= PF_ColorMapped;
}
HWR_ProcessPolygon(&Surf, wallVerts, 4, blend|PF_Modulated, shader, false);
}
#endif
// --------------------------------------------------------------------------
// Sort vissprites by distance
// --------------------------------------------------------------------------
gl_vissprite_t* gl_vsprorder[MAXVISSPRITES];
// Note: For more correct transparency the transparent sprites would need to be
// sorted and drawn together with transparent surfaces.
static int CompareVisSprites(const void *p1, const void *p2)
{
gl_vissprite_t* spr1 = *(gl_vissprite_t*const*)p1;
gl_vissprite_t* spr2 = *(gl_vissprite_t*const*)p2;
int idiff;
float fdiff;
float tz1, tz2;
// Make transparent sprites last. Comment from the previous sort implementation:
// Sryder: Oh boy, while it's nice having ALL the sprites sorted properly, it fails when we bring MD2's into the
// mix and they want to be translucent. So let's place all the translucent sprites and MD2's AFTER
// everything else, but still ordered of course, the depth buffer can handle the opaque ones plenty fine.
// We just need to move all translucent ones to the end in order
// TODO: Fully sort all sprites and MD2s with walls and floors, this part will be unnecessary after that
int transparency1;
int transparency2;
int renderflags1;
int renderflags2;
int frame1;
int frame2;
int linkdraw1;
int linkdraw2;
// bbox doesn't need to be sorted
if (spr1->bbox || spr2->bbox)
return 0;
// check for precip first, because then sprX->mobj is actually a precipmobj_t and does not have flags2 or tracer
linkdraw1 = !spr1->precip && (spr1->mobj->flags2 & MF2_LINKDRAW) && spr1->mobj->tracer;
linkdraw2 = !spr2->precip && (spr2->mobj->flags2 & MF2_LINKDRAW) && spr2->mobj->tracer;
// ^ is the XOR operation
// if comparing a linkdraw and non-linkdraw sprite or 2 linkdraw sprites with different tracers, then use
// the tracer's properties instead of the main sprite's.
if ((linkdraw1 && linkdraw2 && spr1->mobj->tracer != spr2->mobj->tracer) || (linkdraw1 ^ linkdraw2))
{
if (linkdraw1)
{
tz1 = spr1->tracertz;
renderflags1 = spr1->mobj->tracer->renderflags;
frame1 = spr1->mobj->tracer->frame;
}
else
{
tz1 = spr1->tz;
renderflags1 = spr1->mobj->renderflags;
frame1 = spr1->mobj->frame;
}
if (linkdraw2)
{
tz2 = spr2->tracertz;
renderflags2 = spr2->mobj->tracer->renderflags;
frame2 = spr2->mobj->tracer->frame;
}
else
{
tz2 = spr2->tz;
renderflags2 = spr2->mobj->renderflags;
frame2 = spr2->mobj->frame;
}
}
else
{
tz1 = spr1->tz;
renderflags1 = (spr1->precip ? 0 : spr1->mobj->renderflags);
frame1 = spr1->mobj->frame;
tz2 = spr2->tz;
renderflags2 = (spr2->precip ? 0 : spr2->mobj->renderflags);
frame2 = spr2->mobj->frame;
}
// first compare transparency flags, then compare tz, then compare dispoffset
transparency1 = (renderflags1 & RF_TRANSMASK) ?
((renderflags1 & RF_TRANSMASK)>>RF_TRANSSHIFT) :
((frame1 & FF_TRANSMASK)>>FF_TRANSSHIFT);
transparency2 = (renderflags2 & RF_TRANSMASK) ?
((renderflags2 & RF_TRANSMASK)>>RF_TRANSSHIFT) :
((frame2 & FF_TRANSMASK)>>FF_TRANSSHIFT);
idiff = transparency1 - transparency2;
if (idiff != 0) return idiff;
fdiff = tz2 - tz1; // this order seems correct when checking with apitrace. Back to front.
if (fabsf(fdiff) < 1.0E-36f)
return spr1->dispoffset - spr2->dispoffset; // smallest dispoffset first if sprites are at (almost) same location.
else if (fdiff > 0)
return 1;
else
return -1;
}
static void HWR_SortVisSprites(void)
{
UINT32 i;
for (i = 0; i < gl_visspritecount; i++)
{
gl_vsprorder[i] = HWR_GetVisSprite(i);
}
qs22j(gl_vsprorder, gl_visspritecount, sizeof(gl_vissprite_t*), CompareVisSprites);
}
// 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
{
FOutVector wallVerts[4];
FSurfaceInfo Surf;
INT32 texnum;
FBITFIELD blend;
INT32 drawcount;
boolean fogwall;
boolean noencore;
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
void HWR_RenderWall(FOutVector *wallVerts, FSurfaceInfo *pSurf, FBITFIELD blend, boolean fogwall, INT32 lightlevel, extracolormap_t *wallcolormap, INT32 texnum);
#define MAX_TRANSPARENTWALL 256
typedef struct
{
extrasubsector_t *xsub;
boolean isceiling;
fixed_t fixedheight;
INT32 lightlevel;
levelflat_t *levelflat;
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;
typedef struct
{
polyobj_t *polysector;
boolean isceiling;
fixed_t fixedheight;
INT32 lightlevel;
levelflat_t *levelflat;
INT32 alpha;
sector_t *FOFSector;
FBITFIELD blend;
extracolormap_t *planecolormap;
INT32 drawcount;
} polyplaneinfo_t;
static size_t numpolyplanes = 0; // a list of transparent poyobject floors to be drawn
static polyplaneinfo_t *polyplaneinfo = NULL;
//Hurdler: 3D water sutffs
typedef struct gl_drawnode_s
{
planeinfo_t *plane;
polyplaneinfo_t *polyplane;
wallinfo_t *wall;
gl_vissprite_t *sprite;
// struct gl_drawnode_s *next;
// struct gl_drawnode_s *prev;
} gl_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(levelflat_t *levelflat, extrasubsector_t *xsub, boolean isceiling, 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].isceiling = isceiling;
planeinfo[numplanes].fixedheight = fixedheight;
planeinfo[numplanes].lightlevel = ((planecolormap && (planecolormap->flags & CMF_FOG)) || mapnamespace == MNS_SRB2KART) ? lightlevel : 255;
planeinfo[numplanes].levelflat = levelflat;
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++;
}
// Adding this for now until I can create extrasubsector info for polyobjects
// When that happens it'll just be done through HWR_AddTransparentFloor and HWR_RenderPlane
void HWR_AddTransparentPolyobjectFloor(levelflat_t *levelflat, polyobj_t *polysector, boolean isceiling, fixed_t fixedheight, INT32 lightlevel, INT32 alpha, sector_t *FOFSector, FBITFIELD blend, extracolormap_t *planecolormap)
{
static size_t allocedpolyplanes = 0;
// Force realloc if buffer has been freed
if (!polyplaneinfo)
allocedpolyplanes = 0;
if (allocedpolyplanes < numpolyplanes + 1)
{
allocedpolyplanes += MAX_TRANSPARENTFLOOR;
Z_Realloc(polyplaneinfo, allocedpolyplanes * sizeof (*polyplaneinfo), PU_LEVEL, &polyplaneinfo);
}
polyplaneinfo[numpolyplanes].isceiling = isceiling;
polyplaneinfo[numpolyplanes].fixedheight = fixedheight;
polyplaneinfo[numpolyplanes].lightlevel = ((planecolormap && (planecolormap->flags & CMF_FOG)) || mapnamespace == MNS_SRB2KART) ? lightlevel : 255;
polyplaneinfo[numpolyplanes].levelflat = levelflat;
polyplaneinfo[numpolyplanes].polysector = polysector;
polyplaneinfo[numpolyplanes].alpha = alpha;
polyplaneinfo[numpolyplanes].FOFSector = FOFSector;
polyplaneinfo[numpolyplanes].blend = blend;
polyplaneinfo[numpolyplanes].planecolormap = planecolormap;
polyplaneinfo[numpolyplanes].drawcount = drawcount++;
numpolyplanes++;
}
// putting sortindex and sortnode here so the comparator function can see them
gl_drawnode_t *sortnode;
size_t *sortindex;
static int CompareDrawNodes(const void *p1, const void *p2)
{
size_t n1 = *(const size_t*)p1;
size_t n2 = *(const size_t*)p2;
INT32 v1 = 0;
INT32 v2 = 0;
INT32 diff;
if (sortnode[n1].plane)
v1 = sortnode[n1].plane->drawcount;
else if (sortnode[n1].polyplane)
v1 = sortnode[n1].polyplane->drawcount;
else if (sortnode[n1].wall)
v1 = sortnode[n1].wall->drawcount;
else I_Error("CompareDrawNodes: n1 unknown");
if (sortnode[n2].plane)
v2 = sortnode[n2].plane->drawcount;
else if (sortnode[n2].polyplane)
v2 = sortnode[n2].polyplane->drawcount;
else if (sortnode[n2].wall)
v2 = sortnode[n2].wall->drawcount;
else I_Error("CompareDrawNodes: n2 unknown");
diff = v2 - v1;
if (diff == 0) I_Error("CompareDrawNodes: diff is zero");
return diff;
}
static int CompareDrawNodePlanes(const void *p1, const void *p2)
{
size_t n1 = *(const size_t*)p1;
size_t n2 = *(const size_t*)p2;
if (!sortnode[n1].plane) I_Error("CompareDrawNodePlanes: Uh.. This isn't a plane! (n1)");
if (!sortnode[n2].plane) I_Error("CompareDrawNodePlanes: Uh.. This isn't a plane! (n2)");
return ABS(sortnode[n2].plane->fixedheight - viewz) - ABS(sortnode[n1].plane->fixedheight - viewz);
}
//
// HWR_CreateDrawNodes
// Creates and sorts a list of drawnodes for the scene being rendered.
static void HWR_CreateDrawNodes(void)
{
UINT32 i = 0, p = 0;
size_t run_start = 0;
// 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.
sortnode = Z_Calloc((sizeof(planeinfo_t)*numplanes)
+ (sizeof(polyplaneinfo_t)*numpolyplanes)
+ (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.
sortindex = Z_Calloc(sizeof(size_t) * (numplanes + numpolyplanes + numwalls), PU_STATIC, NULL);
ps_hw_nodesorttime = I_GetPreciseTime();
for (i = 0; i < numplanes; i++, p++)
{
sortnode[p].plane = &planeinfo[i];
sortindex[p] = p;
}
for (i = 0; i < numpolyplanes; i++, p++)
{
sortnode[p].polyplane = &polyplaneinfo[i];
sortindex[p] = p;
}
for (i = 0; i < numwalls; i++, p++)
{
sortnode[p].wall = &wallinfo[i];
sortindex[p] = p;
}
ps_numdrawnodes = p;
// p is the number of stuff to sort
// sort the list based on the value of the 'drawcount' member of the drawnodes.
qs22j(sortindex, p, sizeof(size_t), CompareDrawNodes);
// an additional pass is needed to correct the order of consecutive planes in the list.
// for each consecutive run of planes in the list, sort that run based on plane height and view height.
while (run_start < p-1)// p-1 because a 1 plane run at the end of the list does not count
{
// locate run start
if (sortnode[sortindex[run_start]].plane)
{
// found it, now look for run end
size_t run_end;// (inclusive)
for (i = run_start+1; i < p; i++)// size_t and UINT32 being used mixed here... shouldnt break anything though..
{
if (!sortnode[sortindex[i]].plane) break;
}
run_end = i-1;
if (run_end > run_start)// if there are multiple consecutive planes, not just one
{
// consecutive run of planes found, now sort it
qs22j(sortindex + run_start, run_end - run_start + 1, sizeof(size_t), CompareDrawNodePlanes);
}
run_start = run_end + 1;// continue looking for runs coming right after this one
}
else
{
// this wasnt the run start, try next one
run_start++;
}
}
ps_hw_nodesorttime = I_GetPreciseTime() - ps_hw_nodesorttime;
ps_hw_nodedrawtime = I_GetPreciseTime();
// Okay! Let's draw it all! Woo!
HWD.pfnSetTransform(&atransform);
for (i = 0; i < p; i++)
{
if (sortnode[sortindex[i]].plane)
{
// We aren't traversing the BSP tree, so make gl_frontsector null to avoid crashes.
gl_frontsector = NULL;
if (!(sortnode[sortindex[i]].plane->blend & PF_NoTexture))
HWR_GetLevelFlat(sortnode[sortindex[i]].plane->levelflat, R_NoEncore(sortnode[sortindex[i]].plane->FOFSector, sortnode[sortindex[i]].plane->levelflat, sortnode[sortindex[i]].plane->isceiling));
HWR_RenderPlane(NULL, sortnode[sortindex[i]].plane->xsub, sortnode[sortindex[i]].plane->isceiling, sortnode[sortindex[i]].plane->fixedheight, sortnode[sortindex[i]].plane->blend, sortnode[sortindex[i]].plane->lightlevel,
sortnode[sortindex[i]].plane->levelflat, sortnode[sortindex[i]].plane->FOFSector, sortnode[sortindex[i]].plane->alpha, sortnode[sortindex[i]].plane->planecolormap);
}
else if (sortnode[sortindex[i]].polyplane)
{
// We aren't traversing the BSP tree, so make gl_frontsector null to avoid crashes.
gl_frontsector = NULL;
if (!(sortnode[sortindex[i]].polyplane->blend & PF_NoTexture))
HWR_GetLevelFlat(sortnode[sortindex[i]].polyplane->levelflat, R_NoEncore(sortnode[sortindex[i]].polyplane->FOFSector, sortnode[sortindex[i]].polyplane->levelflat, sortnode[sortindex[i]].polyplane->isceiling));
HWR_RenderPolyObjectPlane(sortnode[sortindex[i]].polyplane->polysector, sortnode[sortindex[i]].polyplane->isceiling, sortnode[sortindex[i]].polyplane->fixedheight, sortnode[sortindex[i]].polyplane->blend, sortnode[sortindex[i]].polyplane->lightlevel,
sortnode[sortindex[i]].polyplane->levelflat, sortnode[sortindex[i]].polyplane->FOFSector, sortnode[sortindex[i]].polyplane->alpha, sortnode[sortindex[i]].polyplane->planecolormap);
}
else if (sortnode[sortindex[i]].wall)
{
if (!(sortnode[sortindex[i]].wall->blend & PF_NoTexture))
HWR_GetTexture(sortnode[sortindex[i]].wall->texnum, sortnode[sortindex[i]].wall->noencore);
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, sortnode[sortindex[i]].wall->texnum);
}
}
ps_hw_nodedrawtime = I_GetPreciseTime() - ps_hw_nodedrawtime;
numwalls = 0;
numplanes = 0;
numpolyplanes = 0;
// No mem leaks, please.
Z_Free(sortnode);
Z_Free(sortindex);
}
// --------------------------------------------------------------------------
// Draw all vissprites
// --------------------------------------------------------------------------
// added the stransform so they can be switched as drawing happenes so MD2s and sprites are sorted correctly with each other
static void HWR_DrawSprites(void)
{
UINT32 i;
boolean skipshadow = false; // skip shadow if it was drawn already for a linkdraw sprite encountered earlier in the list
#ifdef BAD_MODEL_OPTIONS
HWD.pfnSetSpecialState(HWD_SET_MODEL_LIGHTING, cv_glmodellighting.value);
#else
HWD.pfnSetSpecialState(HWD_SET_MODEL_LIGHTING, 1);
#endif
for (i = 0; i < gl_visspritecount; i++)
{
gl_vissprite_t *spr = gl_vsprorder[i];
if (spr->bbox)
HWR_DrawBoundingBox(spr);
else
#ifdef HWPRECIP
if (spr->precip)
HWR_DrawPrecipitationSprite(spr);
else
#endif
{
if (spr->mobj && spr->mobj->shadowscale && cv_shadow.value && !skipshadow)
{
HWR_DrawDropShadow(spr->mobj, spr->mobj->shadowscale);
}
if ((spr->mobj->flags2 & MF2_LINKDRAW) && spr->mobj->tracer)
{
// If this linkdraw sprite is behind a sprite that has a shadow,
// then that shadow has to be drawn first, otherwise the shadow ends up on top of
// the linkdraw sprite because the linkdraw sprite does not modify the z-buffer.
// The !skipshadow check is there in case there are multiple linkdraw sprites connected
// to the same tracer, so the tracer's shadow only gets drawn once.
if (cv_shadow.value && !skipshadow && spr->dispoffset < 0 && spr->mobj->tracer->shadowscale)
{
HWR_DrawDropShadow(spr->mobj->tracer, spr->mobj->tracer->shadowscale);
skipshadow = true;
// The next sprite in this loop should be either another linkdraw sprite or the tracer.
// When the tracer is inevitably encountered, skipshadow will cause it's shadow
// to get skipped and skipshadow will get set to false by the 'else' clause below.
}
}
else
{
skipshadow = false;
}
if (spr->mobj && spr->mobj->skin && spr->mobj->sprite == SPR_PLAY)
{
if (LIKELY(!cv_glmodels.value || md2_playermodels[(skin_t*)spr->mobj->skin-skins].notfound || md2_playermodels[(skin_t*)spr->mobj->skin-skins].scale < 0.0f))
HWR_DrawSprite(spr);
else
{
if (!HWR_DrawModel(spr))
HWR_DrawSprite(spr);
}
}
else
{
if (LIKELY(!cv_glmodels.value || md2_models[spr->mobj->sprite].notfound || md2_models[spr->mobj->sprite].scale < 0.0f))
HWR_DrawSprite(spr);
else
{
if (!HWR_DrawModel(spr))
HWR_DrawSprite(spr);
}
}
}
}
HWD.pfnSetSpecialState(HWD_SET_MODEL_LIGHTING, 0);
// At the end of sprite drawing, draw shapes of linkdraw sprites to z-buffer, so they
// don't get drawn over by transparent surfaces.
HWR_LinkDrawHackFinish();
// Work around a r_opengl.c bug with PF_Invisible by making this SetBlend call
// where PF_Invisible is off and PF_Masked is on.
// (Other states probably don't matter. Here I left them same as in LinkDrawHackFinish)
// Without this workaround the rest of the draw calls in this frame (including UI, screen texture)
// can get drawn using an incorrect glBlendFunc, resulting in a occasional black screen.
HWD.pfnSetBlend(PF_Translucent|PF_Occlude|PF_Masked);
}
// --------------------------------------------------------------------------
// HWR_AddSprites
// During BSP traversal, this adds sprites by sector.
// --------------------------------------------------------------------------
static UINT8 sectorlight;
static void HWR_AddSprites(sector_t *sec)
{
mobj_t *thing;
fixed_t 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
sectorlight = sec->lightlevel & 0xff;
// Handle all things in sector.
// If a limit exists, handle things a tiny bit different.
limit_dist = (fixed_t)(cv_drawdist.value) * mapobjectscale;
for (thing = sec->thinglist; thing; thing = thing->snext)
{
if (R_ThingWithinDist(thing, limit_dist))
{
if (R_ThingVisible(thing))
{
HWR_ProjectSprite(thing);
}
HWR_ProjectBoundingBox(thing);
}
}
}
#ifdef HWPRECIP
// --------------------------------------------------------------------------
// HWR_AddPrecipitationSprites
// This renders through the blockmap instead of BSP to avoid
// iterating a huge amount of precipitation sprites in sectors
// that are beyond drawdist.
// --------------------------------------------------------------------------
static void HWR_AddPrecipitationSprites(void)
{
const fixed_t drawdist = cv_drawdist_precip.value * mapobjectscale;
INT32 xl, xh, yl, yh, bx, by;
precipmobj_t *th;
// no, no infinite draw distance for precipitation. this option at zero is supposed to turn it off
if (drawdist == 0)
{
return;
}
// No weather to draw so save some time by skipping blockmap iterations
if (curWeather == PRECIP_NONE || curWeather == PRECIP_STORM_NORAIN)
{
return;
}
R_GetRenderBlockMapDimensions(drawdist, &xl, &xh, &yl, &yh);
for (bx = xl; bx <= xh; bx++)
{
for (by = yl; by <= yh; by++)
{
for (th = precipblocklinks[(by * bmapwidth) + bx]; th; th = th->bnext)
{
if (R_PrecipThingVisible(th))
{
HWR_ProjectPrecipitationSprite(th);
}
}
}
}
}
#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)
{
gl_vissprite_t *vis;
float tr_x, tr_y;
float tz;
float tracertz = 0.0f;
float x1, x2;
float rightsin, rightcos;
float this_scale, this_xscale, this_yscale;
fixed_t highresscale;
float spritexscale, spriteyscale;
float shadowheight = 1.0f, shadowscale = 1.0f;
float gz, gzt;
spritedef_t *sprdef;
spriteframe_t *sprframe;
#ifdef ROTSPRITE
spriteinfo_t *sprinfo;
#endif
md2_t *md2;
size_t lumpoff;
unsigned rot;
UINT16 flip;
boolean vflip = (!(thing->eflags & MFE_VERTICALFLIP) != !R_ThingVerticallyFlipped(thing));
boolean mirrored = thing->mirrored;
boolean hflip = (!R_ThingHorizontallyFlipped(thing) != !mirrored);
INT32 dispoffset;
angle_t ang;
INT32 heightsec, phs;
const boolean splat = R_ThingIsFloorSprite(thing);
const boolean papersprite = (R_ThingIsPaperSprite(thing) && !splat);
float z1, z2;
fixed_t spr_width, spr_height;
fixed_t spr_offset, spr_topoffset;
#ifdef ROTSPRITE
patch_t *rotsprite = NULL;
INT32 rollangle = 0;
angle_t spriterotangle = 0;
vector2_t visoffs, rotoffset;
#endif
// uncapped/interpolation
interpmobjstate_t interp = {0};
mobj_t *interptarg;
if (!thing)
return;
interptarg = thing;
if (R_IsOverlayingInvinciblePlayer(thing))
{
// Kill overlay misalignment
interptarg = thing->target;
}
R_InterpolateMobjState(interptarg, R_GetTimeFrac(RTF_LEVEL), &interp);
dispoffset = thing->dispoffset;
// sprite offset
interp.x += thing->sprxoff;
interp.y += thing->spryoff;
interp.z += thing->sprzoff;
if (interp.spritexscale < 1 || interp.spriteyscale < 1)
return;
this_scale = FIXED_TO_FLOAT(interp.scale);
spritexscale = FIXED_TO_FLOAT(interp.spritexscale);
spriteyscale = FIXED_TO_FLOAT(interp.spriteyscale);
// transform the origin point
tr_x = FIXED_TO_FLOAT(interp.x) - gl_viewx;
tr_y = FIXED_TO_FLOAT(interp.y) - gl_viewy;
// rotation around vertical axis
tz = (tr_x * gl_viewcos) + (tr_y * gl_viewsin);
// thing is behind view plane?
if (tz < ZCLIP_PLANE && !(papersprite || splat))
{
if (cv_glmodels.value) //Yellow: Only MD2's dont disappear
{
if (thing->skin && thing->sprite == SPR_PLAY)
md2 = &md2_playermodels[( (skin_t *)thing->skin - skins )];
else
md2 = &md2_models[thing->sprite];
if (md2->notfound || md2->scale < 0.0f)
return;
}
else
return;
}
// The above can stay as it works for cutting sprites that are too close
tr_x = FIXED_TO_FLOAT(interp.x);
tr_y = FIXED_TO_FLOAT(interp.y);
// 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)->sprites[thing->sprite2];
#ifdef ROTSPRITE
sprinfo = &((skin_t *)thing->skin)->sprinfo[thing->sprite2];
#endif
}
else if (thing->sprite == SPR_ITEM)
{
sprdef = &kartitems[thing->threshold > 0 && thing->threshold < numkartitems ? thing->threshold : 0].spritedef;
#ifdef ROTSPRITE
sprinfo = &spriteinfo[SPR_UNKN];
#endif
}
else
{
sprdef = &sprites[thing->sprite];
#ifdef ROTSPRITE
sprinfo = &spriteinfo[thing->sprite];
#endif
}
if (rot >= sprdef->numframes)
{
CONS_Alert(CONS_ERROR, M_GetText("HWR_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;
sprdef = &sprites[thing->sprite];
#ifdef ROTSPRITE
sprinfo = &spriteinfo[thing->sprite];
#endif
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
ang = R_PointToAngle (interp.x, interp.y) - interp.angle;
if (mirrored)
ang = InvAngle(ang);
if (sprframe->rotate == SRF_SINGLE)
{
// 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 (papersprite && ang < ANGLE_180)
flip ^= 0xFFFF;
}
else
{
// choose a different rotation based on player view
if ((sprframe->rotate & SRF_RIGHT) && (ang < ANGLE_180)) // See from right
rot = 6; // F7 slot
else if ((sprframe->rotate & SRF_LEFT) && (ang >= ANGLE_180)) // See from left
rot = 2; // F3 slot
else if (sprframe->rotate & SRF_3DGE) // 16-angle mode
{
rot = (ang+ANGLE_180+ANGLE_11hh)>>28;
rot = ((rot & 1)<<3)|(rot>>1);
}
else // Normal behaviour
rot = (ang+ANGLE_202h)>>29;
//Fab: lumpid is the index for spritewidth,spriteoffset... tables
lumpoff = sprframe->lumpid[rot];
flip = sprframe->flip & (1<<rot);
if (papersprite && ang < ANGLE_180)
flip ^= (1<<rot);
}
if (thing->skin && ((skin_t *)thing->skin)->highresscale != FRACUNIT)
{
float hi_res = ((skin_t *)thing->skin)->highresscale;
this_scale *= FIXED_TO_FLOAT(hi_res);
highresscale = hi_res;
}
else
{
highresscale = FRACUNIT;
}
spr_width = spritecachedinfo[lumpoff].width;
spr_height = spritecachedinfo[lumpoff].height;
spr_offset = spritecachedinfo[lumpoff].offset;
spr_topoffset = spritecachedinfo[lumpoff].topoffset;
#ifdef ROTSPRITE
spriterotangle = R_SpriteRotationAngle(thing, NULL, &interp);
if (spriterotangle != 0
&& !(splat && !(thing->renderflags & RF_NOSPLATROLLANGLE)))
{
rollangle = R_GetRollAngle(papersprite == vflip
? spriterotangle : InvAngle(spriterotangle));
rotsprite = Patch_GetRotatedSprite(sprframe, (thing->frame & FF_FRAMEMASK), rot, flip, false, sprinfo, rollangle);
if (rotsprite != NULL)
{
spr_width = rotsprite->width << FRACBITS;
spr_height = rotsprite->height << FRACBITS;
spr_offset = rotsprite->leftoffset << FRACBITS;
spr_topoffset = rotsprite->topoffset << FRACBITS;
spr_topoffset += FEETADJUST;
// flip -> rotate, not rotate -> flip
flip = 0;
}
}
// initialize and rotate pitch/roll vectors
visoffs.x = 0;
visoffs.y = 0;
rotoffset.x = 0;
rotoffset.y = 0;
const fixed_t visoffymul = (vflip ? -FRACUNIT : FRACUNIT);
if (R_ThingIsUsingBakedOffsets(interptarg))
{
R_RotateSpriteOffsetsByPitchRoll(interptarg,
vflip,
hflip,
&interp,
&visoffs,
&rotoffset);
rotoffset.x *= FRACUNIT;
}
#endif
if (thing->renderflags & RF_ABSOLUTEOFFSETS)
{
spr_offset = FixedDiv(interp.spritexoffset,highresscale);
#ifdef ROTSPRITE
spr_topoffset = (FixedDiv(interp.spriteyoffset,highresscale) + FixedDiv((visoffs.y * visoffymul), mapobjectscale) + (rotoffset.y * visoffymul));
#else
spr_topoffset = FixedDiv(interp.spriteyoffset,highresscale);
#endif
}
else
{
SINT8 flipoffset = 1;
if ((thing->renderflags & RF_FLIPOFFSETS) && flip)
flipoffset = -1;
spr_offset += FixedDiv(interp.spritexoffset,highresscale) * flipoffset;
#ifdef ROTSPRITE
spr_topoffset += (FixedDiv(interp.spriteyoffset,highresscale) + FixedDiv((visoffs.y * visoffymul),
mapobjectscale) + (rotoffset.y * visoffymul)) * flipoffset;
#else
spr_topoffset += FixedDiv(interp.spriteyoffset,highresscale) * flipoffset;
#endif
}
if (papersprite)
{
rightsin = FIXED_TO_FLOAT(FINESINE(interp.angle >> ANGLETOFINESHIFT));
rightcos = FIXED_TO_FLOAT(FINECOSINE(interp.angle >> ANGLETOFINESHIFT));
}
else
{
rightsin = FIXED_TO_FLOAT(FINESINE((viewangle + ANGLE_90)>>ANGLETOFINESHIFT));
rightcos = FIXED_TO_FLOAT(FINECOSINE((viewangle + ANGLE_90)>>ANGLETOFINESHIFT));
}
flip = !flip != !hflip;
if (thing->renderflags & RF_SHADOWEFFECTS)
{
mobj_t *caster = thing->target;
if (caster && !P_MobjWasRemoved(caster))
{
interpmobjstate_t casterinterp = {0};
fixed_t groundz;
fixed_t floordiff;
R_InterpolateMobjState(caster, R_GetTimeFrac(RTF_LEVEL), &casterinterp);
groundz = R_GetShadowZ(thing, NULL);
floordiff = abs(((thing->eflags & MFE_VERTICALFLIP) ? caster->height : 0) + casterinterp.z - groundz);
shadowheight = FIXED_TO_FLOAT(floordiff);
shadowscale = FIXED_TO_FLOAT(FixedMul(FRACUNIT - floordiff/640, casterinterp.scale));
if (splat)
spritexscale *= shadowscale;
spriteyscale *= shadowscale;
}
}
this_xscale = spritexscale * this_scale;
this_yscale = spriteyscale * this_scale;
if (splat)
{
z1 = z2 = tr_y;
x1 = x2 = tr_x;
gz = gzt = interp.z;
}
else
{
#ifdef ROTSPRITE
if (visoffs.x)
{
visoffs.x = (FixedDiv((visoffs.x * FRACUNIT), mapobjectscale));
}
#endif
if (flip)
{
#ifdef ROTSPRITE
spr_offset -= visoffs.x;
spr_offset -= rotoffset.x;
#endif
x1 = (FIXED_TO_FLOAT((spr_width - spr_offset)) * this_xscale);
x2 = (FIXED_TO_FLOAT(spr_offset) * this_xscale);
}
else
{
#ifdef ROTSPRITE
spr_offset += visoffs.x;
spr_offset += rotoffset.x;
#endif
x1 = (FIXED_TO_FLOAT(spr_offset) * this_xscale);
x2 = (FIXED_TO_FLOAT(spr_width - spr_offset) * this_xscale);
}
// test if too close
/*
if (papersprite)
{
z1 = tz - x1 * angle_scalez;
z2 = tz + x2 * angle_scalez;
if (max(z1, z2) < ZCLIP_PLANE)
return;
}
*/
z1 = tr_y + x1 * rightsin;
z2 = tr_y - x2 * rightsin;
x1 = tr_x + x1 * rightcos;
x2 = tr_x - x2 * rightcos;
if (thing->terrain && thing->terrain->floorClip)
spr_topoffset -= thing->terrain->floorClip;
if (vflip)
{
gz = FIXED_TO_FLOAT(interp.z + thing->height) - (FIXED_TO_FLOAT(spr_topoffset) * this_yscale);
gzt = gz + (FIXED_TO_FLOAT(spr_height) * this_yscale);
}
else
{
gzt = FIXED_TO_FLOAT(interp.z) + (FIXED_TO_FLOAT(spr_topoffset) * this_yscale);
gz = gzt - (FIXED_TO_FLOAT(spr_height) * this_yscale);
}
}
if (thing->subsector->sector->cullheight)
{
if (HWR_DoCulling(thing->subsector->sector->cullheight, viewsector->cullheight, gl_viewz, gz, gzt))
return;
}
heightsec = thing->subsector->sector->heightsec;
if (viewplayer && viewplayer->mo && viewplayer->mo->subsector)
phs = viewplayer->mo->subsector->sector->heightsec;
else
phs = -1;
if (heightsec != -1 && phs != -1) // only clip things which are in special sectors
{
fixed_t secheight;
const fixed_t fgzt = FloatToFixed(gzt);
secheight = P_GetSectorFloorZAt(&sectors[heightsec], viewx, viewy);
if (viewz < P_GetSectorFloorZAt(&sectors[phs], interp.x, interp.y) ?
interp.z >= secheight :
fgzt < secheight)
return;
secheight = P_GetSectorCeilingZAt(&sectors[heightsec], viewx, viewy);
if (viewz > P_GetSectorCeilingZAt(&sectors[phs], interp.x, interp.y) ?
fgzt < secheight && viewz >= secheight :
interp.z >= secheight)
return;
}
if ((thing->flags2 & MF2_LINKDRAW) && thing->tracer)
{
interpmobjstate_t tracer_interp = {0};
if (! R_ThingVisible(thing->tracer))
return;
R_InterpolateMobjState(thing->tracer, R_GetTimeFrac(RTF_LEVEL), &tracer_interp);
// calculate tz for tracer, same way it is calculated for this sprite
// transform the origin point
tr_x = FIXED_TO_FLOAT(tracer_interp.x) - gl_viewx;
tr_y = FIXED_TO_FLOAT(tracer_interp.y) - gl_viewy;
// rotation around vertical axis
tracertz = (tr_x * gl_viewcos) + (tr_y * gl_viewsin);
// Software does not render the linkdraw sprite if the tracer is behind the view plane,
// so do the same check here.
// NOTE: This check has the same flaw as the view plane check at the beginning of HWR_ProjectSprite:
// the view aiming angle is not taken into account, leading to sprites disappearing too early when they
// can still be seen when looking down/up at steep angles.
if (tracertz < ZCLIP_PLANE)
return;
// if the sprite is behind the tracer, invert dispoffset, putting the sprite behind the tracer
if (tz > tracertz)
dispoffset *= -1;
}
// store information in a vissprite
vis = HWR_NewVisSprite();
vis->x1 = x1;
vis->x2 = x2;
vis->z1 = z1;
vis->z2 = z2;
vis->tz = tz; // Keep tz for the simple sprite sorting that happens
vis->tracertz = tracertz;
vis->renderflags = thing->renderflags;
vis->rotateflags = sprframe->rotate;
vis->shadowheight = shadowheight;
vis->shadowscale = shadowscale;
vis->dispoffset = dispoffset; // Monster Iestyn: 23/11/15: HARDWARE SUPPORT AT LAST
vis->flip = flip;
vis->scale = this_scale;
vis->spritexscale = spritexscale;
vis->spriteyscale = spriteyscale;
vis->spritexoffset = FIXED_TO_FLOAT(spr_offset);
vis->spriteyoffset = FIXED_TO_FLOAT(spr_topoffset);
vis->rotated = false;
#ifdef ROTSPRITE
if (rotsprite)
{
vis->gpatch = (patch_t *)rotsprite;
vis->rotated = true;
}
else
#endif
vis->gpatch = (patch_t *)W_CachePatchNum(sprframe->lumppat[rot], PU_SPRITE);
vis->mobj = thing;
//Hurdler: 25/04/2000: now support colormap in hardware mode
/*
else if ((vis->mobj->flags & (MF_ENEMY|MF_BOSS)) && (vis->mobj->flags2 & MF2_FRET) && !(vis->mobj->flags & MF_GRENADEBOUNCE) && (leveltime & 1)) // Bosses "flash"
{
if (vis->mobj->type == MT_CYBRAKDEMON || vis->mobj->colorized)
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);
}
*/
if (thing->color)
{
// New colormap stuff for skins Tails 06-07-2002
if (thing->colorized)
{
vis->colormap = R_GetTranslationColormap(
R_IsOverlayingInvinciblePlayer(thing) ? TC_BLINK : TC_RAINBOW,
thing->color,
GTC_CACHE);
}
else 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_GREEN, GTC_CACHE);
}
}
else
{
vis->colormap = colormaps;
if (encoremap && !(thing->flags & MF_DONTENCOREMAP))
vis->colormap += COLORMAP_REMAPOFFSET;
}
// set top/bottom coords
vis->gzt = gzt;
vis->gz = gz;
//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]);
vis->vflip = vflip;
vis->precip = false;
vis->bbox = false;
vis->angle = interp.angle;
}
#ifdef HWPRECIP
// Precipitation projector for hardware mode
static void HWR_ProjectPrecipitationSprite(precipmobj_t *thing)
{
gl_vissprite_t *vis;
float tr_x, tr_y;
float tz;
float x1, x2;
float z1, z2;
float rightsin, rightcos;
float this_scale;
spritedef_t *sprdef;
spriteframe_t *sprframe;
size_t lumpoff;
unsigned rot = 0;
UINT8 flip;
if (!thing)
return;
// uncapped/interpolation
interpmobjstate_t interp = {0};
// okay... this is a hack, but weather isn't networked, so it should be ok
if (!P_PrecipThinker(thing))
{
return;
}
// do interpolation
R_InterpolatePrecipMobjState(thing, R_GetTimeFrac(RTF_LEVEL), &interp);
this_scale = FIXED_TO_FLOAT(interp.scale);
// transform the origin point
tr_x = FIXED_TO_FLOAT(interp.x) - gl_viewx;
tr_y = FIXED_TO_FLOAT(interp.y) - gl_viewy;
// rotation around vertical axis
tz = (tr_x * gl_viewcos) + (tr_y * gl_viewsin);
// thing is behind view plane?
if (tz < ZCLIP_PLANE)
return;
tr_x = FIXED_TO_FLOAT(interp.x);
tr_y = FIXED_TO_FLOAT(interp.y);
// decide which patch to use for sprite relative to player
if ((unsigned)thing->sprite >= numsprites)
{
CONS_Debug(DBG_RENDER, "R_ProjectPrecipitationSprite: invalid sprite number %d\n",
thing->sprite);
return;
}
sprdef = &sprites[thing->sprite];
if ((UINT8)(thing->frame&FF_FRAMEMASK) >= sprdef->numframes)
{
CONS_Debug(DBG_RENDER, "R_ProjectPrecipitationSprite: invalid sprite frame %d : %d for %s\n",
thing->sprite, thing->frame, sprnames[thing->sprite]);
return;
}
sprframe = &sprdef->spriteframes[ thing->frame & FF_FRAMEMASK];
if (!sprframe)
#ifdef PARANOIA
I_Error("R_ProjectPrecipitationSprite: sprframes NULL for sprite %d\n", thing->sprite);
#else
return;
#endif
// use single rotation for all views
lumpoff = sprframe->lumpid[0];
flip = sprframe->flip; // Will only be 0x00 or 0xFF
rightsin = FIXED_TO_FLOAT(FINESINE((viewangle + ANGLE_90)>>ANGLETOFINESHIFT));
rightcos = FIXED_TO_FLOAT(FINECOSINE((viewangle + ANGLE_90)>>ANGLETOFINESHIFT));
if (flip)
{
x1 = FIXED_TO_FLOAT(spritecachedinfo[lumpoff].width - spritecachedinfo[lumpoff].offset);
x2 = FIXED_TO_FLOAT(spritecachedinfo[lumpoff].offset);
}
else
{
x1 = FIXED_TO_FLOAT(spritecachedinfo[lumpoff].offset);
x2 = FIXED_TO_FLOAT(spritecachedinfo[lumpoff].width - spritecachedinfo[lumpoff].offset);
}
x1 *= this_scale;
x2 *= this_scale;
z1 = tr_y + x1 * rightsin;
z2 = tr_y - x2 * rightsin;
x1 = tr_x + x1 * rightcos;
x2 = tr_x - x2 * rightcos;
//
// store information in a vissprite
//
vis = HWR_NewVisSprite();
vis->x1 = x1;
vis->x2 = x2;
vis->z1 = z1;
vis->z2 = z2;
vis->tz = tz;
vis->dispoffset = 0; // Monster Iestyn: 23/11/15: HARDWARE SUPPORT AT LAST
vis->gpatch = (patch_t *)W_CachePatchNum(sprframe->lumppat[rot], PU_SPRITE);
vis->flip = flip;
vis->mobj = (mobj_t *)thing;
vis->colormap = NULL;
if (encoremap && !(thing->flags & MF_DONTENCOREMAP))
vis->colormap += COLORMAP_REMAPOFFSET;
// set top/bottom coords
vis->gzt = FIXED_TO_FLOAT(interp.z) + (FIXED_TO_FLOAT(spritecachedinfo[lumpoff].topoffset) * this_scale);
vis->gz = vis->gzt - (FIXED_TO_FLOAT(spritecachedinfo[lumpoff].height) * this_scale);
vis->precip = true;
vis->bbox = false;
}
#endif
static void HWR_ProjectBoundingBox(mobj_t *thing)
{
gl_vissprite_t *vis;
float tr_x, tr_y;
float tz;
float rad;
// uncapped/interpolation
interpmobjstate_t interp = {0};
if (!thing)
return;
if (!R_ThingBoundingBoxVisible(thing))
return;
R_InterpolateMobjState(thing, R_GetTimeFrac(RTF_LEVEL), &interp);
// transform the origin point
tr_x = FIXED_TO_FLOAT(interp.x) - gl_viewx;
tr_y = FIXED_TO_FLOAT(interp.y) - gl_viewy;
// rotation around vertical axis
tz = (tr_x * gl_viewcos) + (tr_y * gl_viewsin);
// thing is behind view plane?
if (tz < ZCLIP_PLANE)
return;
tr_x += gl_viewx;
tr_y += gl_viewy;
rad = FIXED_TO_FLOAT(thing->radius);
vis = HWR_NewVisSprite();
vis->x1 = tr_x - rad;
vis->x2 = tr_x + rad;
vis->z1 = tr_y - rad;
vis->z2 = tr_y + rad;
vis->gz = FIXED_TO_FLOAT(interp.z);
vis->gzt = vis->gz + FIXED_TO_FLOAT(thing->height);
vis->mobj = thing;
vis->precip = false;
vis->bbox = true;
}
// ==========================================================================
// Sky dome rendering, ported from PrBoom+
// ==========================================================================
static gl_sky_t gl_sky;
static void HWR_SkyDomeVertex(gl_sky_t *sky, gl_skyvertex_t *vbo, int r, int c, signed char yflip, float delta, boolean foglayer)
{
const float radians = (float)(M_PIl / 180.0f);
const float scale = 10000.0f;
const float maxSideAngle = 60.0f;
float topAngle = (c / (float)sky->columns * 360.0f);
float sideAngle = (maxSideAngle * (sky->rows - r) / sky->rows);
float height = (float)(sin(sideAngle * radians));
float realRadius = (float)(scale * cos(sideAngle * radians));
float x = (float)(realRadius * cos(topAngle * radians));
float y = (!yflip) ? scale * height : -scale * height;
float z = (float)(realRadius * sin(topAngle * radians));
float timesRepeat = (4 * (256.0f / sky->width));
if (fpclassify(timesRepeat) == FP_ZERO)
timesRepeat = 1.0f;
if (!foglayer)
{
vbo->r = 255;
vbo->g = 255;
vbo->b = 255;
vbo->a = (r == 0 ? 0 : 255);
// And the texture coordinates.
vbo->u = (-timesRepeat * c / (float)sky->columns);
if (!yflip) // Flipped Y is for the lower hemisphere.
vbo->v = (r / (float)sky->rows) + 0.5f;
else
vbo->v = 1.0f + ((sky->rows - r) / (float)sky->rows) + 0.5f;
}
if (r != 4)
y += 300.0f;
// And finally the vertex.
vbo->x = x;
vbo->y = y + delta;
vbo->z = z;
}
// Clears the sky dome.
void HWR_ClearSkyDome(void)
{
gl_sky_t *sky = &gl_sky;
if (sky->loops)
free(sky->loops);
if (sky->data)
free(sky->data);
sky->loops = NULL;
sky->data = NULL;
sky->vbo = 0;
sky->rows = sky->columns = 0;
sky->loopcount = 0;
sky->detail = 0;
sky->texture = -1;
sky->width = sky->height = 0;
sky->rebuild = true;
}
void HWR_BuildSkyDome(void)
{
int c, r;
signed char yflip;
int row_count = 4;
int col_count = 4;
float delta;
gl_sky_t *sky = &gl_sky;
gl_skyvertex_t *vertex_p;
texture_t *texture = textures[texturetranslation[skytexture]];
sky->detail = 16;
col_count *= sky->detail;
if ((sky->columns != col_count) || (sky->rows != row_count))
HWR_ClearSkyDome();
sky->columns = col_count;
sky->rows = row_count;
sky->vertex_count = 2 * sky->rows * (sky->columns * 2 + 2) + sky->columns * 2;
if (!sky->loops)
sky->loops = malloc((sky->rows * 2 + 2) * sizeof(sky->loops[0]));
// create vertex array
if (!sky->data)
sky->data = malloc(sky->vertex_count * sizeof(sky->data[0]));
sky->texture = texturetranslation[skytexture];
sky->width = texture->width;
sky->height = texture->height;
vertex_p = &sky->data[0];
sky->loopcount = 0;
for (yflip = 0; yflip < 2; yflip++)
{
sky->loops[sky->loopcount].mode = HWD_SKYLOOP_FAN;
sky->loops[sky->loopcount].vertexindex = vertex_p - &sky->data[0];
sky->loops[sky->loopcount].vertexcount = col_count;
sky->loops[sky->loopcount].use_texture = false;
sky->loopcount++;
for (c = 0; c < col_count; c++)
{
HWR_SkyDomeVertex(sky, vertex_p, 1, c, yflip, 0.0f, true);
vertex_p->r = 255;
vertex_p->g = 255;
vertex_p->b = 255;
vertex_p->a = 255;
vertex_p++;
}
delta = (yflip ? 5.0f : -5.0f) / 128.0f;
for (r = 0; r < row_count; r++)
{
sky->loops[sky->loopcount].mode = HWD_SKYLOOP_STRIP;
sky->loops[sky->loopcount].vertexindex = vertex_p - &sky->data[0];
sky->loops[sky->loopcount].vertexcount = 2 * col_count + 2;
sky->loops[sky->loopcount].use_texture = true;
sky->loopcount++;
for (c = 0; c <= col_count; c++)
{
HWR_SkyDomeVertex(sky, vertex_p++, r + (yflip ? 1 : 0), (c ? c : 0), yflip, delta, false);
HWR_SkyDomeVertex(sky, vertex_p++, r + (yflip ? 0 : 1), (c ? c : 0), yflip, delta, false);
}
}
}
}
static void HWR_DrawSkyBackground(player_t *player)
{
UINT8 viewnum = R_GetViewNumber();
camera_t *thiscam = &camera[viewnum];
HWD.pfnSetBlend(PF_Translucent|PF_NoDepthTest|PF_Modulated);
if (cv_glskydome.value)
{
FTransform dometransform;
const float fpov = FIXED_TO_FLOAT(cv_fov[viewssnum].value+player->fovadd);
memset(&dometransform, 0x00, sizeof(FTransform));
//04/01/2000: Hurdler: added for T&L
// It should replace all other gl_viewxxx when finished
HWR_SetTransformAiming(&dometransform, player, false);
dometransform.angley = (float)((viewangle-ANGLE_270)>>ANGLETOFINESHIFT)*(360.0f/(float)FINEANGLES);
dometransform.flip = false;
if ((thiscam->postimgflags & POSTIMG_FLIP) && !(thiscam->postimgflags & POSTIMG_MIRROR))
dometransform.flip = true;
dometransform.mirror = false;
if ((thiscam->postimgflags & POSTIMG_MIRROR) && !(thiscam->postimgflags & POSTIMG_FLIP))
dometransform.mirror = true;
dometransform.mirrorflip = false;
if ((thiscam->postimgflags & POSTIMG_FLIP) && (thiscam->postimgflags & POSTIMG_MIRROR))
dometransform.mirrorflip = true;
dometransform.scalex = 1;
dometransform.scaley = (float)vid.width/vid.height;
dometransform.scalez = 1;
dometransform.fovxangle = fpov; // Tails
dometransform.fovyangle = fpov; // Tails
HWR_RollTransform(&dometransform, viewroll);
dometransform.splitscreen = r_splitscreen;
HWR_GetTexture(texturetranslation[skytexture], false);
if (gl_sky.texture != texturetranslation[skytexture])
{
HWR_ClearSkyDome();
HWR_BuildSkyDome();
}
if (HWR_UseShader())
HWD.pfnSetShader(HWR_GetShaderFromTarget(SHADER_SKY));
HWD.pfnSetTransform(&dometransform);
HWD.pfnRenderSkyDome(&gl_sky);
}
else
{
FOutVector v[4];
angle_t angle;
float dimensionmultiply;
float aspectratio;
float angleturn;
HWR_GetTexture(texturetranslation[skytexture], false);
aspectratio = (float)vid.width/(float)vid.height;
//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
// Sryder: Just use the near clipping plane value then
// 3--2
// | /|
// |/ |
// 0--1
v[0].x = v[3].x = -ZCLIP_PLANE-1;
v[1].x = v[2].x = ZCLIP_PLANE+1;
v[0].y = v[1].y = -ZCLIP_PLANE-1;
v[2].y = v[3].y = ZCLIP_PLANE+1;
v[0].z = v[1].z = v[2].z = v[3].z = ZCLIP_PLANE+1;
// X
// NOTE: This doesn't work right with texture widths greater than 1024
// software doesn't draw any further than 1024 for skies anyway, but this doesn't overlap properly
// The only time this will probably be an issue is when a sky wider than 1024 is used as a sky AND a regular wall texture
angle = (dup_viewangle + gl_xtoviewangle[0]);
dimensionmultiply = ((float)textures[texturetranslation[skytexture]]->width/256.0f);
v[0].s = v[3].s = (-1.0f * angle) / (((float)ANGLE_90-1.0f)*dimensionmultiply); // left
v[2].s = v[1].s = v[0].s + (1.0f/dimensionmultiply); // right (or left + 1.0f)
// use +angle and -1.0f above instead if you wanted old backwards behavior
// Y
angle = aimingangle;
dimensionmultiply = ((float)textures[texturetranslation[skytexture]]->height/(128.0f*aspectratio));
if (r_splitscreen == 1)
{
dimensionmultiply *= 2;
angle *= 2;
}
// Middle of the sky should always be at angle 0
// need to keep correct aspect ratio with X
if (atransform.flip)
{
// During vertical flip the sky should be flipped and it's y movement should also be flipped obviously
v[3].t = v[2].t = -(0.5f-(0.5f/dimensionmultiply)); // top
v[0].t = v[1].t = v[3].t - (1.0f/dimensionmultiply); // bottom (or top - 1.0f)
}
else
{
v[0].t = v[1].t = -(0.5f-(0.5f/dimensionmultiply)); // bottom
v[3].t = v[2].t = v[0].t - (1.0f/dimensionmultiply); // top (or bottom - 1.0f)
}
angleturn = (((float)ANGLE_45-1.0f)*aspectratio)*dimensionmultiply;
if (angle > ANGLE_180) // Do this because we don't want the sky to suddenly teleport when crossing over 0 to 360 and vice versa
{
angle = InvAngle(angle);
v[3].t = v[2].t += ((float) angle / angleturn);
v[0].t = v[1].t += ((float) angle / angleturn);
}
else
{
v[3].t = v[2].t -= ((float) angle / angleturn);
v[0].t = v[1].t -= ((float) angle / angleturn);
}
HWD.pfnUnSetShader();
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)gl_viewwindowx,
(INT32)gl_viewwindowy,
(INT32)(gl_viewwindowx + gl_viewwidth),
(INT32)(gl_viewwindowy + gl_viewheight),
ZCLIP_PLANE);
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
gl_viewwidth = (float)vid.width;
gl_viewheight = (float)vid.height;
if (r_splitscreen > 0)
{
gl_viewheight /= 2;
if (r_splitscreen > 1)
{
gl_viewwidth /= 2;
}
}
gl_basecenterx = gl_viewwidth / 2;
gl_basecentery = gl_viewheight / 2;
gl_baseviewwindowx = 0;
gl_basewindowcenterx = gl_viewwidth / 2;
gl_baseviewwindowy = 0;
gl_basewindowcentery = gl_viewheight / 2;
gl_pspritexscale = gl_viewwidth / BASEVIDWIDTH;
gl_pspriteyscale = ((vid.height*gl_pspritexscale*BASEVIDWIDTH)/BASEVIDHEIGHT)/vid.width;
HWD.pfnFlushScreenTextures();
}
// -------------------+
// HWR_ShiftViewPort : offset viewport according to current split
// -------------------+
static void HWR_ShiftViewPort(void)
{
gl_centerx = gl_basecenterx;
gl_viewwindowx = gl_baseviewwindowx;
gl_windowcenterx = gl_basewindowcenterx;
gl_centery = gl_basecentery;
gl_viewwindowy = gl_baseviewwindowy;
gl_windowcentery = gl_basewindowcentery;
if (viewssnum > ( r_splitscreen > 1 ))
{
gl_viewwindowy += gl_viewheight;
gl_windowcentery += gl_viewheight;
}
if (r_splitscreen > 1 && viewssnum & 1)
{
gl_viewwindowx += gl_viewwidth;
gl_windowcenterx += gl_viewwidth;
}
}
// Set view aiming, for the sky dome, the skybox,
// and the normal view, all with a single function.
static void HWR_SetTransformAiming(FTransform *trans, player_t *player, boolean skybox)
{
// 1 = always on
// 2 = chasecam only
if (cv_glshearing.value == 1 || (cv_glshearing.value == 2 && R_IsViewpointThirdPerson(player, skybox)))
{
fixed_t fixedaiming = AIMINGTODY(aimingangle);
trans->viewaiming = FIXED_TO_FLOAT(fixedaiming);
trans->shearing = true;
gl_aimingangle = 0;
}
else
{
trans->shearing = false;
gl_aimingangle = aimingangle;
}
trans->anglex = (float)(gl_aimingangle>>ANGLETOFINESHIFT)*(360.0f/(float)FINEANGLES);
}
//
// Sets the shader state.
//
static void HWR_SetShaderState(void)
{
HWD.pfnSetSpecialState(HWD_SET_SHADERS, (INT32)HWR_UseShader());
}
static void HWR_ClearClipper(void)
{
angle_t a1 = gld_FrustumAngle(gl_aimingangle);
gld_clipper_Clear();
gld_clipper_SafeAddClipRange(viewangle + a1, viewangle - a1);
#ifdef HAVE_SPHEREFRUSTRUM
gld_FrustrumSetup();
#endif
}
// ==========================================================================
// Same as rendering the player view, but from the skybox object
// ==========================================================================
void HWR_RenderSkyboxView(player_t *player)
{
UINT8 viewnum = R_GetViewNumber();
camera_t *thiscam = &camera[viewnum];
const float fpov = FIXED_TO_FLOAT(cv_fov[viewssnum].value+player->fovadd);
if (!HWR_ShouldUsePaletteRendering())
{
// 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(viewssnum);
#endif
}
// note: sets viewangle, viewx, viewy, viewz
R_SkyboxFrame(viewssnum);
// copy view cam position for local use
dup_viewx = viewx;
dup_viewy = viewy;
dup_viewz = viewz;
dup_viewangle = viewangle;
// set window position
HWR_ShiftViewPort();
// check for new console commands.
NetUpdate();
gl_viewx = FIXED_TO_FLOAT(dup_viewx);
gl_viewy = FIXED_TO_FLOAT(dup_viewy);
gl_viewz = FIXED_TO_FLOAT(dup_viewz);
gl_viewsin = FIXED_TO_FLOAT(viewsin);
gl_viewcos = FIXED_TO_FLOAT(viewcos);
//04/01/2000: Hurdler: added for T&L
// It should replace all other gl_viewxxx when finished
memset(&atransform, 0x00, sizeof(FTransform));
HWR_SetTransformAiming(&atransform, player, true);
atransform.angley = (float)(viewangle>>ANGLETOFINESHIFT)*(360.0f/(float)FINEANGLES);
gl_viewludsin = FIXED_TO_FLOAT(FINECOSINE(gl_aimingangle>>ANGLETOFINESHIFT));
gl_viewludcos = FIXED_TO_FLOAT(-FINESINE(gl_aimingangle>>ANGLETOFINESHIFT));
atransform.flip = false;
if ((thiscam->postimgflags & POSTIMG_FLIP) && !(thiscam->postimgflags & POSTIMG_MIRROR))
atransform.flip = true;
atransform.mirror = false;
if ((thiscam->postimgflags & POSTIMG_MIRROR) && !(thiscam->postimgflags & POSTIMG_FLIP))
atransform.mirror = true;
atransform.mirrorflip = false;
if ((thiscam->postimgflags & POSTIMG_FLIP) && (thiscam->postimgflags & POSTIMG_MIRROR))
atransform.mirrorflip = true;
atransform.x = gl_viewx; // FIXED_TO_FLOAT(viewx)
atransform.y = gl_viewy; // FIXED_TO_FLOAT(viewy)
atransform.z = gl_viewz; // FIXED_TO_FLOAT(viewz)
atransform.scalex = 1;
atransform.scaley = (float)vid.width/vid.height;
atransform.scalez = 1;
atransform.fovxangle = fpov; // Tails
atransform.fovyangle = fpov; // Tails
HWR_RollTransform(&atransform, viewroll);
atransform.splitscreen = r_splitscreen;
gl_fovlud = (float)(1.0l/tan((double)(fpov*M_PIl/360l)));
//------------------------------------------------------------------------
HWR_ClearView();
HWR_DrawSkyBackground(player);
HWR_ClearSprites();
drawcount = 0;
//04/01/2000: Hurdler: added for T&L
// Actually it only works on Walls and Planes
HWD.pfnSetTransform(&atransform);
HWR_ClearClipper();
// Reset the shader state.
HWR_SetShaderState();
validcount++;
if (LIKELY(cv_glbatching.value))
HWR_StartBatching();
#ifdef HWPRECIP
HWR_AddPrecipitationSprites();
#endif
HWR_RenderBSPNode((INT32)numnodes-1);
if (LIKELY(cv_glbatching.value))
HWR_RenderBatches();
// 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
HWR_SortVisSprites();
HWR_DrawSprites();
#ifdef NEWCORONAS
//Hurdler: they must be drawn before translucent planes, what about gl fog?
HWR_DrawCoronas();
#endif
if (numplanes || numpolyplanes || numwalls) //Hurdler: render 3D water and transparent walls after everything
{
HWR_CreateDrawNodes();
}
HWD.pfnSetTransform(NULL);
HWD.pfnUnSetShader();
// 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);
}
// ==========================================================================
//
// ==========================================================================
static void HWR_RollTransform(FTransform *tr, angle_t roll)
{
if (roll != 0)
{
tr->rollangle = roll / (float)ANG1;
tr->roll = true;
tr->rollx = 1.0f;
tr->rollz = 0.0f;
}
}
void HWR_RenderPlayerView(void)
{
player_t * player = &players[displayplayers[viewssnum]];
UINT8 viewnum = R_GetViewNumber();
camera_t *thiscam = &camera[viewnum];
const float fpov = FIXED_TO_FLOAT(cv_fov[viewssnum].value+player->fovadd);
const boolean skybox = (skyboxmo[0] && cv_skybox.value); // True if there's a skybox object and skyboxes are on
FRGBAFloat ClearColor;
ClearColor.red = 0.0f;
ClearColor.green = 0.0f;
ClearColor.blue = 0.0f;
ClearColor.alpha = 1.0f;
if (cv_glshaders.value)
HWD.pfnSetShaderInfo(HWD_SHADERINFO_LEVELTIME, (INT32)leveltime); // The water surface shader needs the leveltime.
if (viewssnum == 0) // Only do it if it's the first screen being rendered
HWD.pfnClearBuffer(true, false, &ClearColor); // Clear the Color Buffer, stops HOMs. Also seems to fix the skybox issue on Intel GPUs.
ps_hw_skyboxtime = I_GetPreciseTime();
if (skybox) // If there's a skybox and we should be drawing the sky, draw the skybox
HWR_RenderSkyboxView(player); // This is drawn before everything else so it is placed behind
ps_hw_skyboxtime = I_GetPreciseTime() - ps_hw_skyboxtime;
{
// 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(viewssnum);
#endif
}
// note: sets viewangle, viewx, viewy, viewz
R_SetupFrame(viewssnum, skybox);
framecount++; // timedemo
// copy view cam position for local use
dup_viewx = viewx;
dup_viewy = viewy;
dup_viewz = viewz;
dup_viewangle = viewangle;
// set window position
HWR_ShiftViewPort();
if (r_splitscreen == 2 && player == &players[displayplayers[2]]) // No black void please.
{
// V_DrawPatchFill, but for the fourth screen only
patch_t *gpatch = W_CachePatchName("SRB2BACK", PU_CACHE);
INT32 dupz = (vid.dupx < vid.dupy ? vid.dupx : vid.dupy);
INT32 x, y, pw = SHORT(gpatch->width) * dupz, ph = SHORT(gpatch->height) * dupz;
for (x = vid.width>>1; x < vid.width; x += pw)
{
for (y = vid.height>>1; y < vid.height; y += ph)
HWR_DrawStretchyFixedPatch(gpatch, (x)<<FRACBITS, (y)<<FRACBITS, FRACUNIT, FRACUNIT, V_NOSCALESTART, NULL);
}
}
// check for new console commands.
NetUpdate();
gl_viewx = FIXED_TO_FLOAT(dup_viewx);
gl_viewy = FIXED_TO_FLOAT(dup_viewy);
gl_viewz = FIXED_TO_FLOAT(dup_viewz);
gl_viewsin = FIXED_TO_FLOAT(viewsin);
gl_viewcos = FIXED_TO_FLOAT(viewcos);
//04/01/2000: Hurdler: added for T&L
// It should replace all other gl_viewxxx when finished
memset(&atransform, 0x00, sizeof(FTransform));
HWR_SetTransformAiming(&atransform, player, false);
atransform.angley = (float)(viewangle>>ANGLETOFINESHIFT)*(360.0f/(float)FINEANGLES);
gl_viewludsin = FIXED_TO_FLOAT(FINECOSINE(gl_aimingangle>>ANGLETOFINESHIFT));
gl_viewludcos = FIXED_TO_FLOAT(-FINESINE(gl_aimingangle>>ANGLETOFINESHIFT));
atransform.flip = false;
if ((thiscam->postimgflags & POSTIMG_FLIP) && !(thiscam->postimgflags & POSTIMG_MIRROR))
atransform.flip = true;
atransform.mirror = false;
if ((thiscam->postimgflags & POSTIMG_MIRROR) && !(thiscam->postimgflags & POSTIMG_FLIP))
atransform.mirror = true;
atransform.mirrorflip = false;
if ((thiscam->postimgflags & POSTIMG_FLIP) && (thiscam->postimgflags & POSTIMG_MIRROR))
atransform.mirrorflip = true;
atransform.x = gl_viewx; // FIXED_TO_FLOAT(viewx)
atransform.y = gl_viewy; // FIXED_TO_FLOAT(viewy)
atransform.z = gl_viewz; // FIXED_TO_FLOAT(viewz)
atransform.scalex = 1;
atransform.scaley = (float)vid.width/vid.height;
atransform.scalez = 1;
atransform.fovxangle = fpov; // Tails
atransform.fovyangle = fpov; // Tails
HWR_RollTransform(&atransform, viewroll);
atransform.splitscreen = r_splitscreen;
gl_fovlud = (float)(1.0l/tan((double)(fpov*M_PIl/360l)));
//------------------------------------------------------------------------
HWR_ClearView(); // Clears the depth buffer and resets the view I believe
if (!skybox) // Don't draw the regular sky if there's a skybox
HWR_DrawSkyBackground(player);
HWR_ClearSprites();
drawcount = 0;
//04/01/2000: Hurdler: added for T&L
// Actually it only works on Walls and Planes
HWD.pfnSetTransform(&atransform);
HWR_ClearClipper();
// Reset the shader state.
HWR_SetShaderState();
ps_numbspcalls = 0;
ps_numpolyobjects = 0;
ps_bsptime = I_GetPreciseTime();
validcount++;
if (cv_glbatching.value)
HWR_StartBatching();
#ifdef HWPRECIP
HWR_AddPrecipitationSprites();
#endif
HWR_RenderBSPNode((INT32)numnodes-1);
ps_bsptime = I_GetPreciseTime() - ps_bsptime;
if (cv_glbatching.value)
HWR_RenderBatches();
// 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
ps_numsprites = gl_visspritecount;
ps_hw_spritesorttime = I_GetPreciseTime();
HWR_SortVisSprites();
ps_hw_spritesorttime = I_GetPreciseTime() - ps_hw_spritesorttime;
ps_hw_spritedrawtime = I_GetPreciseTime();
HWR_DrawSprites();
ps_hw_spritedrawtime = I_GetPreciseTime() - ps_hw_spritedrawtime;
#ifdef NEWCORONAS
//Hurdler: they must be drawn before translucent planes, what about gl fog?
HWR_DrawCoronas();
#endif
ps_numdrawnodes = 0;
ps_hw_nodesorttime = 0;
ps_hw_nodedrawtime = 0;
if (numplanes || numpolyplanes || numwalls) //Hurdler: render 3D water and transparent walls after everything
{
HWR_CreateDrawNodes();
}
HWD.pfnSetTransform(NULL);
HWD.pfnUnSetShader();
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);
}
// Returns whether palette rendering is "actually enabled."
// Can't have palette rendering if shaders are disabled.
boolean HWR_ShouldUsePaletteRendering(void)
{
return (cv_glpaletterendering.value && HWR_UseShader());
}
// enable or disable palette rendering state depending on settings and availability
// called when relevant settings change
// shader recompilation is done in the cvar callback
static void HWR_TogglePaletteRendering(void)
{
// which state should we go to?
if (HWR_ShouldUsePaletteRendering())
{
// are we not in that state already?
if (!gl_palette_rendering_state)
{
gl_palette_rendering_state = true;
// The textures will still be converted to RGBA by r_opengl.
// This however makes hw_cache use paletted blending for composite textures!
// (patchformat is not touched)
textureformat = GL_TEXFMT_P_8;
HWR_SetMapPalette();
HWR_SetPalette(pLocalPalette);
// If the r_opengl "texture palette" stays the same during this switch, these textures
// will not be cleared out. However they are still out of date since the
// composite texture blending method has changed. Therefore they need to be cleared.
HWR_LoadMapTextures(numtextures);
}
}
else
{
// are we not in that state already?
if (gl_palette_rendering_state)
{
gl_palette_rendering_state = false;
textureformat = GL_TEXFMT_RGBA;
HWR_SetPalette(pLocalPalette);
// If the r_opengl "texture palette" stays the same during this switch, these textures
// will not be cleared out. However they are still out of date since the
// composite texture blending method has changed. Therefore they need to be cleared.
HWR_LoadMapTextures(numtextures);
}
}
}
void HWR_LoadLevel(void)
{
#ifdef ALAM_LIGHTING
// BP: reset light between levels (we draw preview frame lights on current frame)
HWR_ResetLights();
#endif
HWR_CreatePlanePolygons((INT32)numnodes - 1);
// Build the sky dome
HWR_ClearSkyDome();
HWR_BuildSkyDome();
if (HWR_ShouldUsePaletteRendering())
HWR_SetMapPalette();
gl_maploaded = true;
}
// ==========================================================================
// 3D ENGINE COMMANDS
// ==========================================================================
CV_PossibleValue_t glshaders_cons_t[] = {{0, "Off"}, {1, "On"}, {2, "Ignore custom shaders"}, {0, NULL}};
#ifdef BAD_MODEL_OPTIONS
static CV_PossibleValue_t glmodelinterpolation_cons_t[] = {{0, "Off"}, {1, "Sometimes"}, {2, "Always"}, {0, NULL}};
#endif
static CV_PossibleValue_t glshearing_cons_t[] = {{0, "Off"}, {1, "On"}, {2, "Third-person"}, {0, NULL}};
static void CV_glfiltermode_OnChange(void);
static void CV_glanisotropic_OnChange(void);
static CV_PossibleValue_t glfiltermode_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 glanisotropicmode_cons_t[] = {{1, "MIN"}, {16, "MAX"}, {0, NULL}};
static CV_PossibleValue_t glsecbright_cons_t[] = {{0, "MIN"}, {255, "MAX"}, {0, NULL}};
consvar_t cv_glshaders = CVAR_INIT ("gr_shaders", "On", CV_SAVE, glshaders_cons_t, NULL);
consvar_t cv_glallowshaders = CVAR_INIT ("gr_allowclientshaders", "On", CV_NETVAR, CV_OnOff, NULL);
consvar_t cv_fovchange = CVAR_INIT ("gr_fovchange", "Off", CV_SAVE, CV_OnOff, NULL);
consvar_t cv_glsecbright = CVAR_INIT("gr_secbright", "0", CV_SAVE, glsecbright_cons_t, NULL);
#ifdef ALAM_LIGHTING
consvar_t cv_gldynamiclighting = CVAR_INIT ("gr_dynamiclighting", "On", CV_SAVE, CV_OnOff, NULL);
consvar_t cv_glstaticlighting = CVAR_INIT ("gr_staticlighting", "On", CV_SAVE, CV_OnOff, NULL);
consvar_t cv_glcoronas = CVAR_INIT ("gr_coronas", "On", CV_SAVE, CV_OnOff, NULL);
consvar_t cv_glcoronasize = CVAR_INIT ("gr_coronasize", "1", CV_SAVE|CV_FLOAT, 0, NULL);
#endif
consvar_t cv_glmodels = CVAR_INIT ("gr_models", "Off", CV_SAVE, CV_OnOff, NULL);
#ifdef BAD_MODEL_OPTIONS
consvar_t cv_glmodelinterpolation = CVAR_INIT ("gr_modelinterpolation", "Sometimes", CV_SAVE, glmodelinterpolation_cons_t, NULL);
consvar_t cv_glmodellighting = CVAR_INIT ("gr_modellighting", "Off", CV_SAVE, CV_OnOff, NULL);
#endif
consvar_t cv_glshearing = CVAR_INIT ("gr_shearing", "Off", CV_SAVE, glshearing_cons_t, NULL);
consvar_t cv_glspritebillboarding = CVAR_INIT ("gr_spritebillboarding", "On", CV_SAVE, CV_OnOff, NULL);
consvar_t cv_glskydome = CVAR_INIT ("gr_skydome", "On", CV_SAVE, CV_OnOff, NULL);
consvar_t cv_glfiltermode = CVAR_INIT ("gr_filtermode", "Nearest", CV_SAVE|CV_CALL, glfiltermode_cons_t, CV_glfiltermode_OnChange);
consvar_t cv_glanisotropicmode = CVAR_INIT ("gr_anisotropicmode", "1", CV_SAVE|CV_CALL, glanisotropicmode_cons_t, CV_glanisotropic_OnChange);
consvar_t cv_glsolvetjoin = CVAR_INIT ("gr_solvetjoin", "On", 0, CV_OnOff, NULL);
consvar_t cv_glbatching = CVAR_INIT ("gr_batching", "On", 0, CV_OnOff, NULL);
CV_PossibleValue_t glpalettedepth_cons_t[] = {{16, "16 bits"}, {24, "24 bits"}, {0, NULL}};
void CV_glpaletterendering_OnChange(void);
void CV_glpalettedepth_OnChange(void);
consvar_t cv_glpaletterendering = CVAR_INIT ("gr_paletteshader", "Off", CV_CALL|CV_SAVE, CV_OnOff, CV_glpaletterendering_OnChange);
consvar_t cv_glpalettedepth = CVAR_INIT ("gr_palettedepth", "16 bits", CV_SAVE|CV_CALL, glpalettedepth_cons_t, CV_glpalettedepth_OnChange);
#define ONLY_IF_GL_LOADED if (vid.glstate != VID_GL_LIBRARY_LOADED) return;
static void CV_glfiltermode_OnChange(void)
{
ONLY_IF_GL_LOADED
HWD.pfnSetSpecialState(HWD_SET_TEXTUREFILTERMODE, cv_glfiltermode.value);
}
static void CV_glanisotropic_OnChange(void)
{
ONLY_IF_GL_LOADED
HWD.pfnSetSpecialState(HWD_SET_TEXTUREANISOTROPICMODE, cv_glanisotropicmode.value);
}
void CV_glmodellighting_OnChange(void);
void CV_glmodellighting_OnChange(void)
{
ONLY_IF_GL_LOADED
// if shaders have been compiled, then they now need to be recompiled.
if (gl_shadersavailable)
HWR_CompileShaders();
}
void CV_glpaletterendering_OnChange(void)
{
ONLY_IF_GL_LOADED
if (gl_shadersavailable)
{
HWR_CompileShaders();
HWR_TogglePaletteRendering();
}
}
void CV_glpalettedepth_OnChange(void);
void CV_glpalettedepth_OnChange(void)
{
ONLY_IF_GL_LOADED
// refresh the screen palette
if (HWR_ShouldUsePaletteRendering())
HWR_SetPalette(pLocalPalette);
}
void CV_glshaders_OnChange(void);
void CV_glshaders_OnChange(void)
{
ONLY_IF_GL_LOADED
HWR_SetShaderState();
if (cv_glpaletterendering.value)
{
// can't do palette rendering without shaders, so update the state if needed
HWR_TogglePaletteRendering();
}
}
//added by Hurdler: console varibale that are saved
void HWR_AddCommands(void)
{
CV_RegisterVar(&cv_fovchange);
#ifdef ALAM_LIGHTING
CV_RegisterVar(&cv_glstaticlighting);
CV_RegisterVar(&cv_gldynamiclighting);
CV_RegisterVar(&cv_glcoronasize);
CV_RegisterVar(&cv_glcoronas);
#endif
#ifdef BAD_MODEL_OPTIONS
CV_RegisterVar(&cv_glmodellighting);
CV_RegisterVar(&cv_glmodelinterpolation);
#endif
CV_RegisterVar(&cv_glmodels);
CV_RegisterVar(&cv_glskydome);
CV_RegisterVar(&cv_glspritebillboarding);
CV_RegisterVar(&cv_glshearing);
CV_RegisterVar(&cv_glshaders);
CV_RegisterVar(&cv_glsecbright);
CV_RegisterVar(&cv_glallowshaders);
CV_RegisterVar(&cv_glfiltermode);
CV_RegisterVar(&cv_glsolvetjoin);
CV_RegisterVar(&cv_glbatching);
CV_RegisterVar(&cv_glanisotropicmode);
CV_RegisterVar(&cv_glpaletterendering);
CV_RegisterVar(&cv_glpalettedepth);
}
void HWR_AddSessionCommands(void)
{
if (gl_sessioncommandsadded)
return;
gl_sessioncommandsadded = true;
}
// --------------------------------------------------------------------------
// Setup the hardware renderer
// --------------------------------------------------------------------------
void HWR_Startup(void)
{
if (!gl_init)
{
CONS_Printf("HWR_Startup()...\n");
textureformat = patchformat = GL_TEXFMT_RGBA;
HWR_InitPolyPool();
HWR_AddSessionCommands();
HWR_InitMapTextures();
HWR_InitModels();
#ifdef ALAM_LIGHTING
HWR_InitLight();
#endif
gl_shadersavailable = HWR_InitShaders();
HWR_SetShaderState();
HWR_LoadAllCustomShaders();
HWR_TogglePaletteRendering();
}
gl_init = true;
}
// --------------------------------------------------------------------------
// Called after switching to the hardware renderer
// --------------------------------------------------------------------------
void HWR_Switch(void)
{
// Add session commands
if (!gl_sessioncommandsadded)
HWR_AddSessionCommands();
// Set special states from CVARs
HWD.pfnSetSpecialState(HWD_SET_TEXTUREFILTERMODE, cv_glfiltermode.value);
HWD.pfnSetSpecialState(HWD_SET_TEXTUREANISOTROPICMODE, cv_glanisotropicmode.value);
// Load textures
if (!gl_maptexturesloaded)
HWR_LoadMapTextures(numtextures);
// Create plane polygons
if (!gl_maploaded && levelloaded)
{
HWR_ClearAllTextures();
HWR_LoadLevel();
}
}
// --------------------------------------------------------------------------
// Free resources allocated by the hardware renderer
// --------------------------------------------------------------------------
void HWR_Shutdown(void)
{
CONS_Printf("HWR_Shutdown()\n");
HWR_FreeExtraSubsectors();
HWR_FreePolyPool();
HWR_FreeMapTextures();
HWD.pfnFlushScreenTextures();
}
void transform(float *cx, float *cy, float *cz)
{
float tr_x,tr_y;
// translation
tr_x = *cx - gl_viewx;
tr_y = *cz - gl_viewy;
// *cy = *cy;
// rotation around vertical y axis
*cx = (tr_x * gl_viewsin) - (tr_y * gl_viewcos);
tr_x = (tr_x * gl_viewcos) + (tr_y * gl_viewsin);
//look up/down ----TOTAL SUCKS!!!--- do the 2 in one!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
tr_y = *cy - gl_viewz;
*cy = (tr_x * gl_viewludcos) + (tr_y * gl_viewludsin);
*cz = (tr_x * gl_viewludsin) - (tr_y * gl_viewludcos);
//scale y before frustum so that frustum can be scaled to screen height
*cy *= ORIGINAL_ASPECT * gl_fovlud;
*cx *= gl_fovlud;
}
static void HWR_AddTransparentWall(FOutVector *wallVerts, FSurfaceInfo *pSurf, INT32 texnum, boolean noencore, 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);
}
memcpy(wallinfo[numwalls].wallVerts, wallVerts, sizeof (wallinfo[numwalls].wallVerts));
memcpy(&wallinfo[numwalls].Surf, pSurf, sizeof (FSurfaceInfo));
wallinfo[numwalls].texnum = texnum;
wallinfo[numwalls].blend = blend;
wallinfo[numwalls].noencore = noencore;
wallinfo[numwalls].drawcount = drawcount++;
wallinfo[numwalls].fogwall = fogwall;
wallinfo[numwalls].lightlevel = lightlevel;
wallinfo[numwalls].wallcolormap = wallcolormap;
numwalls++;
}
void HWR_RenderWall(FOutVector *wallVerts, FSurfaceInfo *pSurf, FBITFIELD blend, boolean fogwall, INT32 lightlevel, extracolormap_t *wallcolormap, INT32 texnum)
{
FBITFIELD blendmode = blend;
UINT8 alpha = pSurf->PolyColor.s.alpha; // retain the alpha
INT32 shader = SHADER_NONE;
// Lighting is done here instead so that fog isn't drawn incorrectly on transparent walls after sorting
HWR_Lighting(pSurf, lightlevel, wallcolormap, P_SectorUsesDirectionalLighting(gl_frontsector));
pSurf->PolyColor.s.alpha = alpha; // put the alpha back after lighting
if (blend & PF_Environment)
blendmode |= PF_Occlude; // PF_Occlude must be used for solid objects
if (HWR_UseShader())
{
if (fogwall)
shader = SHADER_FOG;
else if (R_GetTextureBrightmap(texnum) && HWR_ShouldUsePaletteRendering())
shader = SHADER_BRIGHTMAP_WALL;
else
shader = SHADER_WALL;
blendmode |= PF_ColorMapped;
}
if (fogwall)
blendmode |= PF_Fog;
blendmode |= PF_Modulated; // No PF_Occlude means overlapping (incorrect) transparency
HWR_ProcessPolygon(pSurf, wallVerts, 4, blendmode, shader, false);
}
INT32 HWR_GetTextureUsed(void)
{
return HWD.pfnGetTextureUsed();
}
void HWR_DoPostProcessor(player_t *player)
{
HWD.pfnUnSetShader();
// Armageddon Blast Flash!
// Could this even be considered postprocessor?
if (player->flashcount && !HWR_ShouldUsePaletteRendering())
{
FOutVector v[4];
FSurfaceInfo Surf;
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.PolyColor.s.red = 0xff;
Surf.PolyColor.s.green = Surf.PolyColor.s.blue = 0x7F; // The nuke palette is kind of pink-ish
}
else
Surf.PolyColor.s.red = Surf.PolyColor.s.green = Surf.PolyColor.s.blue = 0xff;
Surf.PolyColor.s.alpha = 0xc0; // match software mode
V_CubeApply(&Surf.PolyColor.s.red, &Surf.PolyColor.s.green, &Surf.PolyColor.s.blue);
HWD.pfnDrawPolygon(&Surf, v, 4, PF_Modulated|PF_Additive|PF_NoTexture|PF_NoDepthTest);
}
// Capture the screen for intermission and screen waving
if (gamestate != GS_INTERMISSION)
HWD.pfnMakeScreenTexture(HWD_SCREENTEXTURE_GENERIC1);
if (r_splitscreen) // Not supported in splitscreen - someone want to add support?
return;
//UINT8 viewnum = R_GetViewNumber(); // see above
//camera_t *thiscam = &camera[viewnum];
camera_t *thiscam = &camera[0];
// Drunken vision! WooOOooo~
if (thiscam->postimgflags & POSTIMG_WATER || thiscam->postimgflags & POSTIMG_HEAT)
{
// 10 by 10 grid. 2 coordinates (xy)
float v[SCREENVERTS][SCREENVERTS][2];
float disStart = (leveltime-1) + FIXED_TO_FLOAT(R_GetTimeFrac(RTF_LEVEL));
UINT8 x, y;
INT32 WAVELENGTH;
INT32 AMPLITUDE;
INT32 FREQUENCY;
// Modifies the wave.
if (thiscam->postimgflags & POSTIMG_WATER)
{
WAVELENGTH = 5;
AMPLITUDE = 40;
FREQUENCY = 8;
}
else
{
WAVELENGTH = 10;
AMPLITUDE = 60;
FREQUENCY = 4;
}
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);
// Capture the screen again for screen waving on the intermission
if (gamestate != GS_INTERMISSION)
HWD.pfnMakeScreenTexture(HWD_SCREENTEXTURE_GENERIC1);
}
// Flipping of the screen isn't done here anymore
}
void HWR_StartScreenWipe(void)
{
//CONS_Debug(DBG_RENDER, "In HWR_StartScreenWipe()\n");
HWD.pfnMakeScreenTexture(HWD_SCREENTEXTURE_WIPE_START);
}
void HWR_EndScreenWipe(void)
{
//CONS_Debug(DBG_RENDER, "In HWR_EndScreenWipe()\n");
HWD.pfnMakeScreenTexture(HWD_SCREENTEXTURE_WIPE_END);
}
void HWR_DrawIntermissionBG(void)
{
HWD.pfnDrawScreenTexture(HWD_SCREENTEXTURE_GENERIC1, NULL, 0);
}
//
// hwr mode wipes
//
static lumpnum_t wipelumpnum;
// puts wipe lumpname in wipename[9]
static boolean HWR_WipeCheck(UINT8 wipenum, UINT8 scrnnum)
{
static char lumpname[9] = "FADEmmss";
size_t lsize;
// not a valid wipe number
if (wipenum > 99 || scrnnum > 99)
return false; // shouldn't end up here really, the loop should've stopped running beforehand
// puts the numbers into the wipename
lumpname[4] = '0'+(wipenum/10);
lumpname[5] = '0'+(wipenum%10);
lumpname[6] = '0'+(scrnnum/10);
lumpname[7] = '0'+(scrnnum%10);
wipelumpnum = W_CheckNumForName(lumpname);
// again, shouldn't be here really
if (wipelumpnum == LUMPERROR)
return false;
lsize = W_LumpLength(wipelumpnum);
if (!(lsize == 256000 || lsize == 64000 || lsize == 16000 || lsize == 4000))
{
CONS_Alert(CONS_WARNING, "Fade mask lump %s of incorrect size, ignored\n", lumpname);
return false; // again, shouldn't get here if it is a bad size
}
return true;
}
void HWR_DoWipe(UINT8 wipenum, UINT8 scrnnum)
{
if (!HWR_WipeCheck(wipenum, scrnnum))
return;
HWR_GetFadeMask(wipelumpnum);
HWD.pfnDoScreenWipe(HWD_SCREENTEXTURE_WIPE_START, HWD_SCREENTEXTURE_WIPE_END);
}
void HWR_DoTintedWipe(UINT8 wipenum, UINT8 scrnnum)
{
// It does the same thing
HWR_DoWipe(wipenum, scrnnum);
}
void HWR_RenderVhsEffect(INT16 upbary, INT16 downbary, UINT8 updistort, UINT8 downdistort, UINT8 barsize)
{
HWD.pfnRenderVhsEffect(upbary, downbary, updistort, downdistort, barsize);
}
void HWR_MakeScreenFinalTexture(void)
{
int tex = HWR_ShouldUsePaletteRendering() ? HWD_SCREENTEXTURE_GENERIC3 : HWD_SCREENTEXTURE_GENERIC2;
HWD.pfnMakeScreenTexture(tex);
}
void HWR_DrawScreenFinalTexture(int width, int height)
{
int tex = HWR_ShouldUsePaletteRendering() ? HWD_SCREENTEXTURE_GENERIC3 : HWD_SCREENTEXTURE_GENERIC2;
HWD.pfnDrawScreenFinalTexture(tex, width, height);
}
#endif // HWRENDER
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