libretro-tyrquake/common/r_main.c
Kevin Shanahan a3892ec40d render: Remove global currententity
Finally we can see that currententity is only ever written and not
read so it is safe to remove.

Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
2012-10-22 13:40:58 +10:30

1099 lines
26 KiB
C

/*
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// r_main.c
#include "cmd.h"
#include "console.h"
#include "quakedef.h"
#include "r_local.h"
#include "screen.h"
#include "sound.h"
#include "sys.h"
#include "view.h"
void *colormap;
float r_time1;
int r_numallocatededges;
qboolean r_drawpolys;
qboolean r_drawculledpolys;
qboolean r_worldpolysbacktofront;
qboolean r_recursiveaffinetriangles = true;
int r_pixbytes = 1;
float r_aliasuvscale = 1.0;
int r_outofsurfaces;
int r_outofedges;
static vec3_t viewlightvec;
static alight_t r_viewlighting = { 128, 192, viewlightvec };
qboolean r_dowarp, r_dowarpold, r_viewchanged;
int numbtofpolys;
btofpoly_t *pbtofpolys;
mvertex_t *r_pcurrentvertbase;
int c_surf;
int r_maxsurfsseen, r_maxedgesseen;
static int r_cnumsurfs;
static qboolean r_surfsonstack;
int r_clipflags;
byte *r_warpbuffer;
static byte *r_stack_start;
static qboolean r_fov_greater_than_90;
entity_t r_worldentity;
//
// view origin
//
vec3_t vup, base_vup;
vec3_t vpn, base_vpn;
vec3_t vright, base_vright;
vec3_t r_origin;
//
// screen size info
//
refdef_t r_refdef;
float xcenter, ycenter;
float xscale, yscale;
float xscaleinv, yscaleinv;
float xscaleshrink, yscaleshrink;
float aliasxscale, aliasyscale, aliasxcenter, aliasycenter;
int screenwidth;
float pixelAspect;
static float screenAspect;
static float verticalFieldOfView;
static float xOrigin, yOrigin;
mplane_t screenedge[4];
//
// refresh flags
//
int r_framecount = 1; // so frame counts initialized to 0 don't match
int r_visframecount;
int r_polycount;
int r_drawnpolycount;
int *pfrustum_indexes[4];
int r_frustum_indexes[4 * 6];
mleaf_t *r_viewleaf, *r_oldviewleaf;
texture_t *r_notexture_mip;
float r_aliastransition, r_resfudge;
int d_lightstylevalue[256]; // 8.8 fraction of base light value
float dp_time1, dp_time2, db_time1, db_time2, rw_time1, rw_time2;
float se_time1, se_time2, de_time1, de_time2, dv_time1, dv_time2;
cvar_t r_draworder = { "r_draworder", "0" };
cvar_t r_speeds = { "r_speeds", "0" };
cvar_t r_graphheight = { "r_graphheight", "15" };
cvar_t r_clearcolor = { "r_clearcolor", "2" };
cvar_t r_waterwarp = { "r_waterwarp", "1" };
cvar_t r_drawentities = { "r_drawentities", "1" };
cvar_t r_drawviewmodel = { "r_drawviewmodel", "1" };
cvar_t r_drawflat = { "r_drawflat", "0" };
cvar_t r_ambient = { "r_ambient", "0" };
cvar_t r_numsurfs = { "r_numsurfs", "0" };
cvar_t r_numedges = { "r_numedges", "0" };
cvar_t r_lockpvs = { "r_lockpvs", "0" };
cvar_t r_lockfrustum = { "r_lockfrustum", "0" };
cvar_t r_fullbright = {
.name = "r_fullbright",
.string = "0",
.flags = CVAR_DEVELOPER
};
#ifdef QW_HACK
cvar_t r_netgraph = { "r_netgraph", "0" };
static cvar_t r_zgraph = { "r_zgraph", "0" };
#endif
static cvar_t r_timegraph = { "r_timegraph", "0" };
static cvar_t r_aliasstats = { "r_polymodelstats", "0" };
static cvar_t r_dspeeds = { "r_dspeeds", "0" };
static cvar_t r_reportsurfout = { "r_reportsurfout", "0" };
static cvar_t r_maxsurfs = { "r_maxsurfs", "0" };
static cvar_t r_reportedgeout = { "r_reportedgeout", "0" };
static cvar_t r_maxedges = { "r_maxedges", "0" };
static cvar_t r_aliastransbase = { "r_aliastransbase", "200" };
static cvar_t r_aliastransadj = { "r_aliastransadj", "100" };
/*
==================
R_InitTextures
==================
*/
void
R_InitTextures(void)
{
int x, y, m;
byte *dest;
// create a simple checkerboard texture for the default
r_notexture_mip =
Hunk_AllocName(sizeof(texture_t) + 16 * 16 + 8 * 8 + 4 * 4 + 2 * 2,
"notexture");
r_notexture_mip->width = r_notexture_mip->height = 16;
r_notexture_mip->offsets[0] = sizeof(texture_t);
r_notexture_mip->offsets[1] = r_notexture_mip->offsets[0] + 16 * 16;
r_notexture_mip->offsets[2] = r_notexture_mip->offsets[1] + 8 * 8;
r_notexture_mip->offsets[3] = r_notexture_mip->offsets[2] + 4 * 4;
for (m = 0; m < 4; m++) {
dest = (byte *)r_notexture_mip + r_notexture_mip->offsets[m];
for (y = 0; y < (16 >> m); y++) {
for (x = 0; x < (16 >> m); x++) {
if ((y < (8 >> m)) ^ (x < (8 >> m)))
*dest++ = 0;
else
*dest++ = 0xff;
}
}
}
}
/*
================
R_InitTurb
================
*/
static void
R_InitTurb(void)
{
int i;
for (i = 0; i < TURB_TABLE_SIZE; ++i) {
sintable[i] = TURB_SURF_AMP
+ sin(i * 3.14159 * 2 / TURB_CYCLE) * TURB_SURF_AMP;
intsintable[i] = TURB_SCREEN_AMP
+ sin(i * 3.14159 * 2 / TURB_CYCLE) * TURB_SCREEN_AMP;
}
}
/*
===============
R_Init
===============
*/
void
R_Init(void)
{
int dummy;
// get stack position so we can guess if we are going to overflow
r_stack_start = (byte *)&dummy;
R_InitTurb();
Cmd_AddCommand("timerefresh", R_TimeRefresh_f);
Cmd_AddCommand("pointfile", R_ReadPointFile_f);
Cvar_RegisterVariable(&r_draworder);
Cvar_RegisterVariable(&r_speeds);
Cvar_RegisterVariable(&r_graphheight);
Cvar_RegisterVariable(&r_clearcolor);
Cvar_RegisterVariable(&r_waterwarp);
Cvar_RegisterVariable(&r_drawentities);
Cvar_RegisterVariable(&r_drawviewmodel);
Cvar_RegisterVariable(&r_drawflat);
Cvar_RegisterVariable(&r_ambient);
Cvar_RegisterVariable(&r_numsurfs);
Cvar_RegisterVariable(&r_numedges);
Cvar_RegisterVariable(&r_lockpvs);
Cvar_RegisterVariable(&r_lockfrustum);
Cvar_RegisterVariable(&r_fullbright);
Cvar_RegisterVariable(&r_timegraph);
Cvar_RegisterVariable(&r_aliasstats);
Cvar_RegisterVariable(&r_dspeeds);
Cvar_RegisterVariable(&r_reportsurfout);
Cvar_RegisterVariable(&r_maxsurfs);
Cvar_RegisterVariable(&r_reportedgeout);
Cvar_RegisterVariable(&r_maxedges);
Cvar_RegisterVariable(&r_aliastransbase);
Cvar_RegisterVariable(&r_aliastransadj);
#ifdef QW_HACK
Cvar_RegisterVariable(&r_netgraph);
Cvar_RegisterVariable(&r_zgraph);
#endif
Cvar_SetValue("r_maxedges", (float)NUMSTACKEDGES);
Cvar_SetValue("r_maxsurfs", (float)NUMSTACKSURFACES);
view_clipplanes[0].leftedge = true;
view_clipplanes[1].rightedge = true;
view_clipplanes[1].leftedge = view_clipplanes[2].leftedge =
view_clipplanes[3].leftedge = false;
view_clipplanes[0].rightedge = view_clipplanes[2].rightedge =
view_clipplanes[3].rightedge = false;
r_refdef.xOrigin = XCENTERING;
r_refdef.yOrigin = YCENTERING;
R_InitParticles();
// TODO: collect 386-specific code in one place
#ifdef USE_X86_ASM
Sys_MakeCodeWriteable((long)R_EdgeCodeStart,
(long)R_EdgeCodeEnd - (long)R_EdgeCodeStart);
#endif
D_Init();
}
/*
===============
R_NewMap
===============
*/
void
R_NewMap(void)
{
int i;
memset(&r_worldentity, 0, sizeof(r_worldentity));
r_worldentity.model = cl.worldmodel;
// clear out efrags in case the level hasn't been reloaded
// FIXME: is this one short?
for (i = 0; i < cl.worldmodel->numleafs; i++)
cl.worldmodel->leafs[i].efrags = NULL;
r_viewleaf = NULL;
R_ClearParticles();
r_cnumsurfs = r_maxsurfs.value;
if (r_cnumsurfs <= MINSURFACES)
r_cnumsurfs = MINSURFACES;
if (r_cnumsurfs > NUMSTACKSURFACES) {
surfaces = Hunk_AllocName(r_cnumsurfs * sizeof(surf_t), "surfaces");
surface_p = surfaces;
surf_max = &surfaces[r_cnumsurfs];
r_surfsonstack = false;
// surface 0 doesn't really exist; it's just a dummy because index 0
// is used to indicate no edge attached to surface
surfaces--;
R_SurfacePatch();
} else {
r_surfsonstack = true;
}
r_maxedgesseen = 0;
r_maxsurfsseen = 0;
r_numallocatededges = r_maxedges.value;
if (r_numallocatededges < MINEDGES)
r_numallocatededges = MINEDGES;
if (r_numallocatededges <= NUMSTACKEDGES) {
auxedges = NULL;
} else {
auxedges = Hunk_AllocName(r_numallocatededges * sizeof(edge_t),
"edges");
}
r_dowarpold = false;
r_viewchanged = false;
}
/*
===============
R_SetVrect
===============
*/
void
R_SetVrect(vrect_t *pvrectin, vrect_t *pvrect, int lineadj)
{
int h;
float size;
qboolean full = false;
if (scr_viewsize.value >= 100.0) {
size = 100.0;
full = true;
} else {
size = scr_viewsize.value;
full = false;
}
if (cl.intermission) {
full = true;
size = 100.0;
lineadj = 0;
}
size /= 100.0;
#ifdef NQ_HACK
if (full)
#endif
#ifdef QW_HACK
if (!cl_sbar.value && full)
#endif
h = pvrectin->height;
else
h = pvrectin->height - lineadj;
if (full)
pvrect->width = pvrectin->width;
else
pvrect->width = pvrectin->width * size;
if (pvrect->width < 96) {
size = 96.0 / pvrectin->width;
pvrect->width = 96; // min for icons
}
pvrect->width &= ~7;
pvrect->height = pvrectin->height * size;
#ifdef NQ_HACK
if (!full) {
#endif
#ifdef QW_HACK
if (cl_sbar.value || !full) {
#endif
if (pvrect->height > pvrectin->height - lineadj)
pvrect->height = pvrectin->height - lineadj;
} else if (pvrect->height > pvrectin->height)
pvrect->height = pvrectin->height;
pvrect->height &= ~1;
pvrect->x = (pvrectin->width - pvrect->width) / 2;
if (full)
pvrect->y = 0;
else
pvrect->y = (h - pvrect->height) / 2;
}
/*
===============
R_ViewChanged
Called every time the vid structure or r_refdef changes.
Guaranteed to be called before the first refresh
===============
*/
void
R_ViewChanged(vrect_t *pvrect, int lineadj, float aspect)
{
int i;
float res_scale;
r_viewchanged = true;
R_SetVrect(pvrect, &r_refdef.vrect, lineadj);
r_refdef.horizontalFieldOfView = 2.0 * tan(r_refdef.fov_x / 360 * M_PI);
r_refdef.fvrectx = (float)r_refdef.vrect.x;
r_refdef.fvrectx_adj = (float)r_refdef.vrect.x - 0.5;
r_refdef.vrect_x_adj_shift20 = (r_refdef.vrect.x << 20) + (1 << 19) - 1;
r_refdef.fvrecty = (float)r_refdef.vrect.y;
r_refdef.fvrecty_adj = (float)r_refdef.vrect.y - 0.5;
r_refdef.vrectright = r_refdef.vrect.x + r_refdef.vrect.width;
r_refdef.vrectright_adj_shift20 =
(r_refdef.vrectright << 20) + (1 << 19) - 1;
r_refdef.fvrectright = (float)r_refdef.vrectright;
r_refdef.fvrectright_adj = (float)r_refdef.vrectright - 0.5;
r_refdef.vrectrightedge = (float)r_refdef.vrectright - 0.99;
r_refdef.vrectbottom = r_refdef.vrect.y + r_refdef.vrect.height;
r_refdef.fvrectbottom = (float)r_refdef.vrectbottom;
r_refdef.fvrectbottom_adj = (float)r_refdef.vrectbottom - 0.5;
r_refdef.aliasvrect.x = (int)(r_refdef.vrect.x * r_aliasuvscale);
r_refdef.aliasvrect.y = (int)(r_refdef.vrect.y * r_aliasuvscale);
r_refdef.aliasvrect.width = (int)(r_refdef.vrect.width * r_aliasuvscale);
r_refdef.aliasvrect.height =
(int)(r_refdef.vrect.height * r_aliasuvscale);
r_refdef.aliasvrectright =
r_refdef.aliasvrect.x + r_refdef.aliasvrect.width;
r_refdef.aliasvrectbottom =
r_refdef.aliasvrect.y + r_refdef.aliasvrect.height;
pixelAspect = aspect;
xOrigin = r_refdef.xOrigin;
yOrigin = r_refdef.yOrigin;
screenAspect = r_refdef.vrect.width * pixelAspect / r_refdef.vrect.height;
// 320*200 1.0 pixelAspect = 1.6 screenAspect
// 320*240 1.0 pixelAspect = 1.3333 screenAspect
// proper 320*200 pixelAspect = 0.8333333
verticalFieldOfView = r_refdef.horizontalFieldOfView / screenAspect;
// values for perspective projection
// if math were exact, the values would range from 0.5 to to range+0.5
// hopefully they wll be in the 0.000001 to range+.999999 and truncate
// the polygon rasterization will never render in the first row or column
// but will definately render in the [range] row and column, so adjust the
// buffer origin to get an exact edge to edge fill
xcenter = ((float)r_refdef.vrect.width * XCENTERING) +
r_refdef.vrect.x - 0.5;
aliasxcenter = xcenter * r_aliasuvscale;
ycenter = ((float)r_refdef.vrect.height * YCENTERING) +
r_refdef.vrect.y - 0.5;
aliasycenter = ycenter * r_aliasuvscale;
xscale = r_refdef.vrect.width / r_refdef.horizontalFieldOfView;
aliasxscale = xscale * r_aliasuvscale;
xscaleinv = 1.0 / xscale;
yscale = xscale * pixelAspect;
aliasyscale = yscale * r_aliasuvscale;
yscaleinv = 1.0 / yscale;
xscaleshrink =
(r_refdef.vrect.width - 6) / r_refdef.horizontalFieldOfView;
yscaleshrink = xscaleshrink * pixelAspect;
// left side clip
screenedge[0].normal[0] =
-1.0 / (xOrigin * r_refdef.horizontalFieldOfView);
screenedge[0].normal[1] = 0;
screenedge[0].normal[2] = 1;
screenedge[0].type = PLANE_ANYZ;
// right side clip
screenedge[1].normal[0] =
1.0 / ((1.0 - xOrigin) * r_refdef.horizontalFieldOfView);
screenedge[1].normal[1] = 0;
screenedge[1].normal[2] = 1;
screenedge[1].type = PLANE_ANYZ;
// top side clip
screenedge[2].normal[0] = 0;
screenedge[2].normal[1] = -1.0 / (yOrigin * verticalFieldOfView);
screenedge[2].normal[2] = 1;
screenedge[2].type = PLANE_ANYZ;
// bottom side clip
screenedge[3].normal[0] = 0;
screenedge[3].normal[1] = 1.0 / ((1.0 - yOrigin) * verticalFieldOfView);
screenedge[3].normal[2] = 1;
screenedge[3].type = PLANE_ANYZ;
for (i = 0; i < 4; i++)
VectorNormalize(screenedge[i].normal);
res_scale =
sqrt((double)(r_refdef.vrect.width * r_refdef.vrect.height) /
(320.0 * 152.0)) * (2.0 / r_refdef.horizontalFieldOfView);
r_aliastransition = r_aliastransbase.value * res_scale;
r_resfudge = r_aliastransadj.value * res_scale;
if (scr_fov.value <= 90.0)
r_fov_greater_than_90 = false;
else
r_fov_greater_than_90 = true;
// TODO: collect 386-specific code in one place
#ifdef USE_X86_ASM
if (r_pixbytes == 1) {
Sys_MakeCodeWriteable((long)R_Surf8Start,
(long)R_Surf8End - (long)R_Surf8Start);
colormap = vid.colormap;
R_Surf8Patch();
} else {
Sys_MakeCodeWriteable((long)R_Surf16Start,
(long)R_Surf16End - (long)R_Surf16Start);
colormap = vid.colormap16;
R_Surf16Patch();
}
#endif
D_ViewChanged();
}
/*
===============
R_MarkLeaves
===============
*/
static void
R_MarkLeaves(void)
{
byte *vis;
mnode_t *node;
int i;
if (r_oldviewleaf == r_viewleaf || r_lockpvs.value)
return;
r_visframecount++;
r_oldviewleaf = r_viewleaf;
vis = Mod_LeafPVS(r_viewleaf, cl.worldmodel);
for (i = 0; i < cl.worldmodel->numleafs; i++) {
if (vis[i >> 3] & (1 << (i & 7))) {
node = (mnode_t *)&cl.worldmodel->leafs[i + 1];
do {
if (node->visframe == r_visframecount)
break;
node->visframe = r_visframecount;
node = node->parent;
} while (node);
}
}
}
/*
=============
R_DrawEntitiesOnList
=============
*/
static void
R_DrawEntitiesOnList(void)
{
entity_t *e;
int i, j;
int lnum;
alight_t lighting;
// FIXME: remove and do real lighting
float lightvec[3] = { -1, 0, 0 };
vec3_t dist;
float add;
if (!r_drawentities.value)
return;
for (i = 0; i < cl_numvisedicts; i++) {
e = &cl_visedicts[i];
#ifdef NQ_HACK
if (e == &cl_entities[cl.viewentity])
continue; // don't draw the player
#endif
switch (e->model->type) {
case mod_sprite:
VectorCopy(e->origin, r_entorigin);
VectorSubtract(r_origin, r_entorigin, modelorg);
R_DrawSprite(e);
break;
case mod_alias:
VectorCopy(e->origin, r_entorigin);
VectorSubtract(r_origin, r_entorigin, modelorg);
// see if the bounding box lets us trivially reject, also sets
// trivial accept status
if (R_AliasCheckBBox(e)) {
j = R_LightPoint(e->origin);
lighting.ambientlight = j;
lighting.shadelight = j;
lighting.plightvec = lightvec;
for (lnum = 0; lnum < MAX_DLIGHTS; lnum++) {
if (cl_dlights[lnum].die >= cl.time) {
VectorSubtract(e->origin, cl_dlights[lnum].origin,
dist);
add = cl_dlights[lnum].radius - Length(dist);
if (add > 0)
lighting.ambientlight += add;
}
}
// clamp lighting so it doesn't overbright as much
if (lighting.ambientlight > 128)
lighting.ambientlight = 128;
if (lighting.ambientlight + lighting.shadelight > 192)
lighting.shadelight = 192 - lighting.ambientlight;
R_AliasDrawModel(e, &lighting);
}
break;
default:
break;
}
}
}
/*
=============
R_DrawViewModel
=============
*/
static void
R_DrawViewModel(void)
{
entity_t *e;
// FIXME: remove and do real lighting
float lightvec[3] = { -1, 0, 0 };
int j;
int lnum;
vec3_t dist;
float add;
dlight_t *dl;
#ifdef NQ_HACK
if (!r_drawviewmodel.value || r_fov_greater_than_90)
return;
#endif
#ifdef QW_HACK
if (!r_drawviewmodel.value || r_fov_greater_than_90 || !Cam_DrawViewModel())
return;
#endif
if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
return;
if (cl.stats[STAT_HEALTH] <= 0)
return;
e = &cl.viewent;
if (!e->model)
return;
VectorCopy(e->origin, r_entorigin);
VectorSubtract(r_origin, r_entorigin, modelorg);
VectorCopy(vup, viewlightvec);
VectorInverse(viewlightvec);
j = R_LightPoint(e->origin);
if (j < 24)
j = 24; // allways give some light on gun
r_viewlighting.ambientlight = j;
r_viewlighting.shadelight = j;
// add dynamic lights
for (lnum = 0; lnum < MAX_DLIGHTS; lnum++) {
dl = &cl_dlights[lnum];
if (!dl->radius)
continue;
if (!dl->radius)
continue;
if (dl->die < cl.time)
continue;
VectorSubtract(e->origin, dl->origin, dist);
add = dl->radius - Length(dist);
if (add > 0)
r_viewlighting.ambientlight += add;
}
// clamp lighting so it doesn't overbright as much
if (r_viewlighting.ambientlight > 128)
r_viewlighting.ambientlight = 128;
if (r_viewlighting.ambientlight + r_viewlighting.shadelight > 192)
r_viewlighting.shadelight = 192 - r_viewlighting.ambientlight;
r_viewlighting.plightvec = lightvec;
R_AliasDrawModel(e, &r_viewlighting);
}
/*
=============
R_BmodelCheckBBox
=============
*/
static int
R_BmodelCheckBBox(entity_t *e, model_t *clmodel, float *minmaxs)
{
int i, *pindex, clipflags;
vec3_t acceptpt, rejectpt;
double d;
clipflags = 0;
if (e->angles[0] || e->angles[1] || e->angles[2]) {
for (i = 0; i < 4; i++) {
d = DotProduct(e->origin, view_clipplanes[i].normal);
d -= view_clipplanes[i].dist;
if (d <= -clmodel->radius)
return BMODEL_FULLY_CLIPPED;
if (d <= clmodel->radius)
clipflags |= (1 << i);
}
} else {
for (i = 0; i < 4; i++) {
// generate accept and reject points
// FIXME: do with fast look-ups or integer tests based on the sign
// bit of the floating point values
pindex = pfrustum_indexes[i];
rejectpt[0] = minmaxs[pindex[0]];
rejectpt[1] = minmaxs[pindex[1]];
rejectpt[2] = minmaxs[pindex[2]];
d = DotProduct(rejectpt, view_clipplanes[i].normal);
d -= view_clipplanes[i].dist;
if (d <= 0)
return BMODEL_FULLY_CLIPPED;
acceptpt[0] = minmaxs[pindex[3 + 0]];
acceptpt[1] = minmaxs[pindex[3 + 1]];
acceptpt[2] = minmaxs[pindex[3 + 2]];
d = DotProduct(acceptpt, view_clipplanes[i].normal);
d -= view_clipplanes[i].dist;
if (d <= 0)
clipflags |= (1 << i);
}
}
return clipflags;
}
/*
=============
R_DrawBEntitiesOnList
=============
*/
static void
R_DrawBEntitiesOnList(void)
{
entity_t *e;
int i, j, k, clipflags;
vec3_t oldorigin;
model_t *clmodel;
float minmaxs[6];
if (!r_drawentities.value)
return;
VectorCopy(modelorg, oldorigin);
insubmodel = true;
r_dlightframecount = r_framecount;
for (i = 0; i < cl_numvisedicts; i++) {
e = &cl_visedicts[i];
switch (e->model->type) {
case mod_brush:
clmodel = e->model;
// see if the bounding box lets us trivially reject, also sets
// trivial accept status
for (j = 0; j < 3; j++) {
minmaxs[j] = e->origin[j] + clmodel->mins[j];
minmaxs[3 + j] = e->origin[j] + clmodel->maxs[j];
}
clipflags = R_BmodelCheckBBox(e, clmodel, minmaxs);
if (clipflags != BMODEL_FULLY_CLIPPED) {
VectorCopy(e->origin, r_entorigin);
VectorSubtract(r_origin, r_entorigin, modelorg);
r_pcurrentvertbase = clmodel->vertexes;
// FIXME: stop transforming twice
R_RotateBmodel(e);
// calculate dynamic lighting for bmodel if it's not an
// instanced model
if (clmodel->firstmodelsurface != 0) {
for (k = 0; k < MAX_DLIGHTS; k++) {
if ((cl_dlights[k].die < cl.time) ||
(!cl_dlights[k].radius)) {
continue;
}
R_MarkLights(&cl_dlights[k], 1 << k,
clmodel->nodes +
clmodel->hulls[0].firstclipnode);
}
}
// if the driver wants polygons, deliver those. Z-buffering is
// on at this point, so no clipping to the world tree is
// needed, just frustum clipping
if (r_drawpolys | r_drawculledpolys) {
R_ZDrawSubmodelPolys(e, clmodel);
} else {
r_pefragtopnode = NULL;
for (j = 0; j < 3; j++) {
r_emins[j] = minmaxs[j];
r_emaxs[j] = minmaxs[3 + j];
}
R_SplitEntityOnNode2(cl.worldmodel->nodes);
if (r_pefragtopnode) {
e->topnode = r_pefragtopnode;
if (r_pefragtopnode->contents >= 0) {
// not a leaf; has to be clipped to the world BSP
r_clipflags = clipflags;
R_DrawSolidClippedSubmodelPolygons(e, clmodel);
} else {
// falls entirely in one leaf, so we just put all
// the edges in the edge list and let 1/z sorting
// handle drawing order
R_DrawSubmodelPolygons(e, clmodel, clipflags);
}
e->topnode = NULL;
}
}
// put back world rotation and frustum clipping
// FIXME: R_RotateBmodel should just work off base_vxx
VectorCopy(base_vpn, vpn);
VectorCopy(base_vup, vup);
VectorCopy(base_vright, vright);
VectorCopy(base_modelorg, modelorg);
VectorCopy(oldorigin, modelorg);
R_TransformFrustum();
}
break;
default:
break;
}
}
insubmodel = false;
}
/*
================
R_EdgeDrawing
================
*/
static void
R_EdgeDrawing(void)
{
edge_t ledges[NUMSTACKEDGES + ((CACHE_SIZE - 1) / sizeof(edge_t)) + 1];
surf_t lsurfs[NUMSTACKSURFACES + ((CACHE_SIZE - 1) / sizeof(surf_t)) + 1];
if (auxedges) {
r_edges = auxedges;
} else {
r_edges = (edge_t *)
(((long)&ledges[0] + CACHE_SIZE - 1) & ~(CACHE_SIZE - 1));
}
if (r_surfsonstack) {
surfaces = (surf_t *)
(((long)&lsurfs[0] + CACHE_SIZE - 1) & ~(CACHE_SIZE - 1));
surf_max = &surfaces[r_cnumsurfs];
// surface 0 doesn't really exist; it's just a dummy because index 0
// is used to indicate no edge attached to surface
surfaces--;
R_SurfacePatch();
}
R_BeginEdgeFrame();
if (r_dspeeds.value) {
rw_time1 = Sys_DoubleTime();
}
R_RenderWorld();
if (r_drawculledpolys)
R_ScanEdges();
// only the world can be drawn back to front with no z reads or compares,
// just z writes, so have the driver turn z compares on now
D_TurnZOn();
if (r_dspeeds.value) {
rw_time2 = Sys_DoubleTime();
db_time1 = rw_time2;
}
R_DrawBEntitiesOnList();
if (r_dspeeds.value) {
db_time2 = Sys_DoubleTime();
se_time1 = db_time2;
}
if (!r_dspeeds.value) {
VID_UnlockBuffer();
S_ExtraUpdate(); // don't let sound get messed up if going slow
VID_LockBuffer();
}
if (!(r_drawpolys | r_drawculledpolys))
R_ScanEdges();
}
/*
================
R_RenderView
r_refdef must be set before the first call
================
*/
static void
R_RenderView_(void)
{
byte warpbuffer[WARP_WIDTH * WARP_HEIGHT];
r_warpbuffer = warpbuffer;
if (r_timegraph.value || r_speeds.value || r_dspeeds.value)
r_time1 = Sys_DoubleTime();
R_SetupFrame();
R_MarkLeaves(); // done here so we know if we're in water
// make FDIV fast. This reduces timing precision after we've been running
// for a while, so we don't do it globally. This also sets chop mode, and
// we do it here so that setup stuff like the refresh area calculations
// match what's done in screen.c
Sys_LowFPPrecision();
if (!r_worldentity.model || !cl.worldmodel)
Sys_Error("%s: NULL worldmodel", __func__);
if (!r_dspeeds.value) {
VID_UnlockBuffer();
S_ExtraUpdate(); // don't let sound get messed up if going slow
VID_LockBuffer();
}
R_EdgeDrawing();
if (!r_dspeeds.value) {
VID_UnlockBuffer();
S_ExtraUpdate(); // don't let sound get messed up if going slow
VID_LockBuffer();
}
if (r_dspeeds.value) {
se_time2 = Sys_DoubleTime();
de_time1 = se_time2;
}
R_DrawEntitiesOnList();
if (r_dspeeds.value) {
de_time2 = Sys_DoubleTime();
dv_time1 = de_time2;
}
R_DrawViewModel();
if (r_dspeeds.value) {
dv_time2 = Sys_DoubleTime();
dp_time1 = Sys_DoubleTime();
}
R_DrawParticles();
if (r_dspeeds.value)
dp_time2 = Sys_DoubleTime();
if (r_dowarp)
D_WarpScreen();
V_SetContentsColor(r_viewleaf->contents);
if (r_timegraph.value)
R_TimeGraph();
#ifdef QW_HACK
if (r_netgraph.value)
R_NetGraph();
if (r_zgraph.value)
R_ZGraph();
#endif
if (r_aliasstats.value)
R_PrintAliasStats();
if (r_speeds.value)
R_PrintTimes();
if (r_dspeeds.value)
R_PrintDSpeeds();
if (r_reportsurfout.value && r_outofsurfaces)
Con_Printf("Short %d surfaces\n", r_outofsurfaces);
if (r_reportedgeout.value && r_outofedges)
Con_Printf("Short roughly %d edges\n", r_outofedges * 2 / 3);
// back to high floating-point precision
Sys_HighFPPrecision();
}
void
R_RenderView(void)
{
int dummy;
#if 0
/*
* FIXME - This check fails with "gcc-3.4 -O2" I don't really understand
* fully, but the placement of stack vs. globals/statics must be different
* somehow...
*/
int delta;
delta = (byte *)&dummy - r_stack_start;
if (delta < -10000 || delta > 10000)
Sys_Error("%s: called without enough stack (delta: %d)", __func__,
delta);
#endif
if (Hunk_LowMark() & 3)
Sys_Error("Hunk is missaligned");
if ((long)(&dummy) & 3)
Sys_Error("Stack is missaligned");
if ((long)(&r_warpbuffer) & 3)
Sys_Error("Globals are missaligned");
R_RenderView_();
}