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fteqw/engine/gl/gl_rmain.c
Spoike e0aab1c134 try to fix shader vertex lighting issue. 
fix issue where ftenq protocol positions were sticking.
fixed manifest file windowless infinite wait.
Added support for ^[\img\foo^] images on the console if they are at the start of the line.
Console objects may now be drawn by csqc. Key input is blocked for now, lest csqc get access to things its not allowed to access. Will add provisions later.
fixed sound menu crash.
added ultrawide speex codec.
clamp micamp levels to try to boost audio quality/audiability.
rtp control plugins are now allowed to use opus, speex support is correctly queried instead of assumed.
WriteFloat now works properly, and not just for ents.
no longer sending prespawn/precaches/signon commands to clients that do not expect them.
fix sql column header queries.
more verbose about active nq protocol verions.
-condebug overrides config.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4461 fc73d0e0-1445-4013-8a0c-d673dee63da5
2013-08-21 07:14:39 +00:00

1428 lines
35 KiB
C
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/*
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 "quakedef.h"
#ifdef GLQUAKE
#include "glquake.h"
#include "renderque.h"
#include "shader.h"
#include "gl_draw.h"
void R_RenderBrushPoly (msurface_t *fa);
#define PROJECTION_DISTANCE 200
#define MAX_STENCIL_ENTS 128
extern int gl_stencilbits;
FTEPFNGLCOMPRESSEDTEXIMAGE2DARBPROC qglCompressedTexImage2DARB;
FTEPFNGLGETCOMPRESSEDTEXIMAGEARBPROC qglGetCompressedTexImageARB;
vec3_t modelorg, r_entorigin;
extern int r_visframecount; // bumped when going to a new PVS
extern int r_framecount; // used for dlight push checking
float r_wateralphaval; //allowed or not...
//mplane_t frustum[4];
int c_brush_polys, c_alias_polys;
//
// view origin
//
//vec3_t vup;
//vec3_t vpn;
//vec3_t vright;
//vec3_t r_origin;
cvar_t r_norefresh = SCVAR("r_norefresh","0");
extern cvar_t gl_part_flame;
extern cvar_t r_bloom;
cvar_t gl_affinemodels = SCVAR("gl_affinemodels","0");
cvar_t gl_reporttjunctions = SCVAR("gl_reporttjunctions","0");
cvar_t gl_finish = SCVAR("gl_finish","0");
cvar_t gl_dither = SCVAR("gl_dither", "1");
extern cvar_t r_stereo_separation;
extern cvar_t r_stereo_method;
extern cvar_t r_postprocshader;
extern cvar_t gl_screenangle;
extern cvar_t gl_mindist;
extern cvar_t ffov;
extern cvar_t gl_motionblur;
extern cvar_t gl_motionblurscale;
extern cvar_t gl_ati_truform;
extern cvar_t gl_ati_truform_type;
extern cvar_t gl_ati_truform_tesselation;
extern cvar_t gl_blendsprites;
#ifdef R_XFLIP
cvar_t r_xflip = SCVAR("leftisright", "0");
#endif
extern cvar_t scr_fov;
shader_t *scenepp_waterwarp;
// post processing stuff
texid_t sceneblur_texture;
texid_t scenepp_texture_warp;
texid_t scenepp_texture_edge;
texid_t scenepp_postproc_cube;
int scenepp_postproc_cube_size;
// KrimZon - init post processing - called in GL_CheckExtensions, when they're called
// I put it here so that only this file need be changed when messing with the post
// processing shaders
void GL_InitSceneProcessingShaders_WaterWarp (void)
{
scenepp_waterwarp = NULL;
if (gl_config.arb_shader_objects)
{
scenepp_waterwarp = R_RegisterShader("waterwarp", SUF_NONE,
"{\n"
"program underwaterwarp\n"
"{\n"
"map $currentrender\n"
"}\n"
"{\n"
"map $upperoverlay\n"
"}\n"
"{\n"
"map $loweroverlay\n"
"}\n"
"}\n"
);
scenepp_waterwarp->defaulttextures.upperoverlay = scenepp_texture_warp;
scenepp_waterwarp->defaulttextures.loweroverlay = scenepp_texture_edge;
}
}
void GL_InitSceneProcessingShaders (void)
{
if (gl_config.arb_shader_objects)
{
GL_InitSceneProcessingShaders_WaterWarp();
}
gl_dither.modified = true; //fixme: bad place for this, but hey
}
#define PP_WARP_TEX_SIZE 64
#define PP_AMP_TEX_SIZE 64
#define PP_AMP_TEX_BORDER 4
void GL_SetupSceneProcessingTextures (void)
{
int i, x, y;
unsigned char pp_warp_tex[PP_WARP_TEX_SIZE*PP_WARP_TEX_SIZE*3];
unsigned char pp_edge_tex[PP_AMP_TEX_SIZE*PP_AMP_TEX_SIZE*3];
scenepp_postproc_cube = r_nulltex;
TEXASSIGN(sceneblur_texture, GL_AllocNewTexture("***postprocess_blur***", 0, 0, 0));
if (!gl_config.arb_shader_objects)
return;
TEXASSIGN(scenepp_texture_warp, GL_AllocNewTexture("***postprocess_warp***", PP_WARP_TEX_SIZE, PP_WARP_TEX_SIZE, IF_NOMIPMAP|IF_NOGAMMA));
TEXASSIGN(scenepp_texture_edge, GL_AllocNewTexture("***postprocess_edge***", PP_WARP_TEX_SIZE, PP_WARP_TEX_SIZE, IF_NOMIPMAP|IF_NOGAMMA));
// init warp texture - this specifies offset in
for (y=0; y<PP_WARP_TEX_SIZE; y++)
{
for (x=0; x<PP_WARP_TEX_SIZE; x++)
{
float fx, fy;
i = (x + y*PP_WARP_TEX_SIZE) * 3;
fx = sin(((double)y / PP_WARP_TEX_SIZE) * M_PI * 2);
fy = cos(((double)x / PP_WARP_TEX_SIZE) * M_PI * 2);
pp_warp_tex[i ] = (fx+1.0f)*127.0f;
pp_warp_tex[i+1] = (fy+1.0f)*127.0f;
pp_warp_tex[i+2] = 0;
}
}
GL_MTBind(0, GL_TEXTURE_2D, scenepp_texture_warp);
qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
qglTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, PP_WARP_TEX_SIZE, PP_WARP_TEX_SIZE, 0, GL_RGB, GL_UNSIGNED_BYTE, pp_warp_tex);
// TODO: init edge texture - this is ampscale * 2, with ampscale calculated
// init warp texture - this specifies offset in
for (y=0; y<PP_AMP_TEX_SIZE; y++)
{
for (x=0; x<PP_AMP_TEX_SIZE; x++)
{
float fx = 1, fy = 1;
i = (x + y*PP_AMP_TEX_SIZE) * 3;
if (x < PP_AMP_TEX_BORDER)
{
fx = (float)x / PP_AMP_TEX_BORDER;
}
if (x > PP_AMP_TEX_SIZE - PP_AMP_TEX_BORDER)
{
fx = (PP_AMP_TEX_SIZE - (float)x) / PP_AMP_TEX_BORDER;
}
if (y < PP_AMP_TEX_BORDER)
{
fy = (float)y / PP_AMP_TEX_BORDER;
}
if (y > PP_AMP_TEX_SIZE - PP_AMP_TEX_BORDER)
{
fy = (PP_AMP_TEX_SIZE - (float)y) / PP_AMP_TEX_BORDER;
}
//avoid any sudden changes.
fx=sin(fx*M_PI*0.5);
fy=sin(fy*M_PI*0.5);
//lame
fx = fy = min(fx, fy);
pp_edge_tex[i ] = fx * 255;
pp_edge_tex[i+1] = fy * 255;
pp_edge_tex[i+2] = 0;
}
}
// scenepp_texture_edge = R_LoadTexture32("***postprocess_edge***", PP_AMP_TEX_SIZE, PP_AMP_TEX_SIZE, pp_edge_tex, IF_NOMIPMAP|IF_NOGAMMA|IF_NOPICMIP);
GL_MTBind(0, GL_TEXTURE_2D, scenepp_texture_edge);
qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
qglTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, PP_WARP_TEX_SIZE, PP_WARP_TEX_SIZE, 0, GL_RGB, GL_UNSIGNED_BYTE, pp_edge_tex);
}
void R_RotateForEntity (float *m, float *modelview, const entity_t *e, const model_t *mod)
{
if ((e->flags & Q2RF_WEAPONMODEL) && r_refdef.playerview->viewentity > 0)
{
entity_t *view = &r_refdef.playerview->viewent;
float em[16];
float vm[16];
vm[0] = view->axis[0][0];
vm[1] = view->axis[0][1];
vm[2] = view->axis[0][2];
vm[3] = 0;
vm[4] = view->axis[1][0];
vm[5] = view->axis[1][1];
vm[6] = view->axis[1][2];
vm[7] = 0;
vm[8] = view->axis[2][0];
vm[9] = view->axis[2][1];
vm[10] = view->axis[2][2];
vm[11] = 0;
vm[12] = view->origin[0];
vm[13] = view->origin[1];
vm[14] = view->origin[2];
vm[15] = 1;
em[0] = e->axis[0][0];
em[1] = e->axis[0][1];
em[2] = e->axis[0][2];
em[3] = 0;
em[4] = e->axis[1][0];
em[5] = e->axis[1][1];
em[6] = e->axis[1][2];
em[7] = 0;
em[8] = e->axis[2][0];
em[9] = e->axis[2][1];
em[10] = e->axis[2][2];
em[11] = 0;
em[12] = e->origin[0];
em[13] = e->origin[1];
em[14] = e->origin[2];
em[15] = 1;
Matrix4_Multiply(vm, em, m);
}
else
{
m[0] = e->axis[0][0];
m[1] = e->axis[0][1];
m[2] = e->axis[0][2];
m[3] = 0;
m[4] = e->axis[1][0];
m[5] = e->axis[1][1];
m[6] = e->axis[1][2];
m[7] = 0;
m[8] = e->axis[2][0];
m[9] = e->axis[2][1];
m[10] = e->axis[2][2];
m[11] = 0;
m[12] = e->origin[0];
m[13] = e->origin[1];
m[14] = e->origin[2];
m[15] = 1;
}
if (e->scale != 1 && e->scale != 0) //hexen 2 stuff
{
float z;
float escale;
escale = e->scale;
switch(e->drawflags&SCALE_TYPE_MASKIN)
{
default:
case SCALE_TYPE_UNIFORM:
VectorScale((m+0), escale, (m+0));
VectorScale((m+4), escale, (m+4));
VectorScale((m+8), escale, (m+8));
break;
case SCALE_TYPE_XYONLY:
VectorScale((m+0), escale, (m+0));
VectorScale((m+4), escale, (m+4));
break;
case SCALE_TYPE_ZONLY:
VectorScale((m+8), escale, (m+8));
break;
}
if (mod && (e->drawflags&SCALE_TYPE_MASKIN) != SCALE_TYPE_XYONLY)
{
switch(e->drawflags&SCALE_ORIGIN_MASKIN)
{
case SCALE_ORIGIN_CENTER:
z = ((mod->maxs[2] + mod->mins[2]) * (1-escale))/2;
VectorMA((m+12), z, e->axis[2], (m+12));
break;
case SCALE_ORIGIN_BOTTOM:
VectorMA((m+12), mod->mins[2]*(1-escale), e->axis[2], (m+12));
break;
case SCALE_ORIGIN_TOP:
VectorMA((m+12), -mod->maxs[2], e->axis[2], (m+12));
break;
}
}
}
else if (mod && !strcmp(mod->name, "progs/eyes.mdl"))
{
/*resize eyes, to make them easier to see*/
m[14] -= (22 + 8);
VectorScale((m+0), 2, (m+0));
VectorScale((m+4), 2, (m+4));
VectorScale((m+8), 2, (m+8));
}
if (mod && !ruleset_allow_larger_models.ival && mod->clampscale != 1 && mod->type == mod_alias)
{ //possibly this should be on a per-frame basis, but that's a real pain to do
Con_DPrintf("Rescaling %s by %f\n", mod->name, mod->clampscale);
VectorScale((m+0), mod->clampscale, (m+0));
VectorScale((m+4), mod->clampscale, (m+4));
VectorScale((m+8), mod->clampscale, (m+8));
}
Matrix4_Multiply(r_refdef.m_view, m, modelview);
}
//==================================================================================
/*
=============
R_SetupGL
=============
*/
void R_SetupGL (float stereooffset)
{
int x, x2, y2, y, w, h;
vec3_t newa;
float fov_x, fov_y;
if (!r_refdef.recurse)
{
AngleVectors (r_refdef.viewangles, vpn, vright, vup);
VectorCopy (r_refdef.vieworg, r_origin);
VectorMA(r_origin, stereooffset, vright, r_origin);
//
// set up viewpoint
//
x = r_refdef.vrect.x * (int)vid.pixelwidth/(int)vid.width;
x2 = (r_refdef.vrect.x + r_refdef.vrect.width) * (int)vid.pixelwidth/(int)vid.width;
y = (vid.height-r_refdef.vrect.y) * (int)vid.pixelheight/(int)vid.height;
y2 = ((int)vid.height - (r_refdef.vrect.y + r_refdef.vrect.height)) * (int)vid.pixelheight/(int)vid.height;
// fudge around because of frac screen scale
if (x > 0)
x--;
if (x2 < vid.pixelwidth)
x2++;
if (y2 < 0)
y2--;
if (y < vid.pixelheight)
y++;
w = x2 - x;
h = y - y2;
fov_x = r_refdef.fov_x;//+sin(cl.time)*5;
fov_y = r_refdef.fov_y;//-sin(cl.time+1)*5;
if (stereooffset && r_stereo_method.ival == 5)
{
w /= 2;
if (stereooffset > 0)
x += vid.pixelwidth/2;
}
r_refdef.pxrect.x = x;
r_refdef.pxrect.y = y;
r_refdef.pxrect.width = w;
r_refdef.pxrect.height = h;
qglViewport (x, y2, w, h);
if (r_waterwarp.value<0 && (r_viewcontents & FTECONTENTS_FLUID))
{
fov_x *= 1 + (((sin(cl.time * 4.7) + 1) * 0.015) * r_waterwarp.value);
fov_y *= 1 + (((sin(cl.time * 3.0) + 1) * 0.015) * r_waterwarp.value);
}
if (r_refdef.useperspective)
{
int stencilshadows = 0;
#ifdef RTLIGHTS
stencilshadows |= r_shadow_realtime_dlight.ival && r_shadow_realtime_dlight_shadows.ival;
stencilshadows |= r_shadow_realtime_world.ival && r_shadow_realtime_world_shadows.ival;
//if (r_shadow_shadowmapping.ival)
stencilshadows = false;
#endif
if ((!stencilshadows || !gl_stencilbits) && gl_maxdist.value>=100)//gl_nv_range_clamp)
{
// yfov = 2*atan((float)r_refdef.vrect.height/r_refdef.vrect.width)*180/M_PI;
// yfov = (2.0 * tan (scr_fov.value/360*M_PI)) / screenaspect;
// yfov = 2*atan((float)r_refdef.vrect.height/r_refdef.vrect.width)*(scr_fov.value*2)/M_PI;
// MYgluPerspective (yfov, screenaspect, 4, 4096);
Matrix4x4_CM_Projection_Far(r_refdef.m_projection, fov_x, fov_y, gl_mindist.value, gl_maxdist.value);
}
else
{
Matrix4x4_CM_Projection_Inf(r_refdef.m_projection, fov_x, fov_y, gl_mindist.value);
}
}
else
{
if (gl_maxdist.value>=1)
Matrix4x4_CM_Orthographic(r_refdef.m_projection, -fov_x/2, fov_x/2, -fov_y/2, fov_y/2, -gl_maxdist.value, gl_maxdist.value);
else
Matrix4x4_CM_Orthographic(r_refdef.m_projection, 0, r_refdef.vrect.width, 0, r_refdef.vrect.height, -9999, 9999);
}
newa[0] = r_refdef.viewangles[0];
newa[1] = r_refdef.viewangles[1];
newa[2] = r_refdef.viewangles[2] + gl_screenangle.value;
Matrix4x4_CM_ModelViewMatrix(r_refdef.m_view, newa, r_origin);
}
if (qglLoadMatrixf)
{
qglMatrixMode(GL_PROJECTION);
qglLoadMatrixf(r_refdef.m_projection);
qglMatrixMode(GL_MODELVIEW);
qglLoadMatrixf(r_refdef.m_view);
}
if (!gl_config.gles && gl_dither.modified)
{
gl_dither.modified = false;
if (gl_dither.ival)
{
qglEnable(GL_DITHER);
}
else
{
qglDisable(GL_DITHER);
}
}
}
/*
================
R_RenderScene
r_refdef must be set before the first call
================
*/
void R_RenderScene (void)
{
float stereooffset[2];
int stereoframes = 1;
int stereomode;
int i;
int tmpvisents = cl_numvisedicts; /*world rendering is allowed to add additional ents, but we don't want to keep them for recursive views*/
if (!cl.worldmodel || (!cl.worldmodel->nodes && cl.worldmodel->type != mod_heightmap))
r_refdef.flags |= Q2RDF_NOWORLDMODEL;
stereomode = r_stereo_method.ival;
if (stereomode == 1)
{
#ifdef GL_STEREO
GLint glb;
qglGetIntegerv(GL_STEREO, &glb);
if (!glb)
#endif
stereomode = 0; //we are not a stereo context, so no stereoscopic rendering (this encourages it to otherwise be left enabled, which means the user is more likely to spot that they asked it to give a slower context.
}
if (r_refdef.recurse || !stereomode || !r_stereo_separation.value)
{
stereooffset[0] = 0;
stereoframes = 1;
stereomode = 0;
}
else
{
stereooffset[0] = -r_stereo_separation.value;
stereooffset[1] = r_stereo_separation.value;
stereoframes = 2;
}
for (i = 0; i < stereoframes; i++)
{
switch (stereomode)
{
default:
case 0: //off
if (i)
return;
break;
#ifdef GL_STEREO
case 1: //proper gl stereo rendering
if (stereooffset[i] < 0)
qglDrawBuffer(GL_BACK_LEFT);
else
qglDrawBuffer(GL_BACK_RIGHT);
break;
#endif
case 2: //red/cyan
if (stereooffset[i] < 0)
qglColorMask(GL_TRUE, GL_FALSE, GL_FALSE, GL_TRUE);
else
qglColorMask(GL_FALSE, GL_TRUE, GL_TRUE, GL_TRUE);
break;
case 3: //red/blue
if (stereooffset[i] < 0)
qglColorMask(GL_TRUE, GL_FALSE, GL_FALSE, GL_TRUE);
else
qglColorMask(GL_FALSE, GL_FALSE, GL_TRUE, GL_TRUE);
break;
case 4: //red/green
if (stereooffset[i] < 0)
qglColorMask(GL_TRUE, GL_FALSE, GL_FALSE, GL_TRUE);
else
qglColorMask(GL_FALSE, GL_TRUE, GL_FALSE, GL_TRUE);
break;
case 5: //eyestrain
break;
}
if (i)
qglClear (GL_DEPTH_BUFFER_BIT);
TRACE(("dbg: calling R_SetupGL\n"));
R_SetupGL (stereooffset[i]);
TRACE(("dbg: calling R_SetFrustrum\n"));
R_SetFrustum (r_refdef.m_projection, r_refdef.m_view);
RQ_BeginFrame();
TRACE(("dbg: calling Surf_DrawWorld\n"));
Surf_DrawWorld (); // adds static entities to the list
S_ExtraUpdate (); // don't let sound get messed up if going slow
// R_DrawDecals();
TRACE(("dbg: calling R_RenderDlights\n"));
R_RenderDlights ();
if (r_refdef.recurse)
RQ_RenderBatch();
else
RQ_RenderBatchClear();
cl_numvisedicts = tmpvisents;
}
switch (stereomode)
{
default:
case 0:
break;
case 1:
qglDrawBuffer(GL_BACK);
break;
case 3:
qglColorMask(GL_FALSE, GL_TRUE, GL_FALSE, GL_FALSE);
qglClear(GL_COLOR_BUFFER_BIT);
qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
break;
case 4:
qglColorMask(GL_FALSE, GL_FALSE, GL_TRUE, GL_FALSE);
qglClear(GL_COLOR_BUFFER_BIT);
qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
case 2:
qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
break;
case 5:
break;
}
}
/*generates a new modelview matrix, as well as vpn vectors*/
static void R_MirrorMatrix(plane_t *plane)
{
float mirror[16];
float view[16];
float result[16];
vec3_t pnorm;
VectorNegate(plane->normal, pnorm);
mirror[0] = 1-2*pnorm[0]*pnorm[0];
mirror[1] = -2*pnorm[0]*pnorm[1];
mirror[2] = -2*pnorm[0]*pnorm[2];
mirror[3] = 0;
mirror[4] = -2*pnorm[1]*pnorm[0];
mirror[5] = 1-2*pnorm[1]*pnorm[1];
mirror[6] = -2*pnorm[1]*pnorm[2] ;
mirror[7] = 0;
mirror[8] = -2*pnorm[2]*pnorm[0];
mirror[9] = -2*pnorm[2]*pnorm[1];
mirror[10] = 1-2*pnorm[2]*pnorm[2];
mirror[11] = 0;
mirror[12] = -2*pnorm[0]*plane->dist;
mirror[13] = -2*pnorm[1]*plane->dist;
mirror[14] = -2*pnorm[2]*plane->dist;
mirror[15] = 1;
view[0] = vpn[0];
view[1] = vpn[1];
view[2] = vpn[2];
view[3] = 0;
view[4] = -vright[0];
view[5] = -vright[1];
view[6] = -vright[2];
view[7] = 0;
view[8] = vup[0];
view[9] = vup[1];
view[10] = vup[2];
view[11] = 0;
view[12] = r_refdef.vieworg[0];
view[13] = r_refdef.vieworg[1];
view[14] = r_refdef.vieworg[2];
view[15] = 1;
VectorMA(r_refdef.vieworg, 0.25, plane->normal, r_refdef.pvsorigin);
Matrix4_Multiply(mirror, view, result);
vpn[0] = result[0];
vpn[1] = result[1];
vpn[2] = result[2];
vright[0] = -result[4];
vright[1] = -result[5];
vright[2] = -result[6];
vup[0] = result[8];
vup[1] = result[9];
vup[2] = result[10];
r_refdef.vieworg[0] = result[12];
r_refdef.vieworg[1] = result[13];
r_refdef.vieworg[2] = result[14];
}
static entity_t *R_NearestPortal(plane_t *plane)
{
int i;
entity_t *best = NULL;
float dist, bestd = 0;
//for q3-compat, portals on world scan for a visedict to use for their view.
for (i = 0; i < cl_numvisedicts; i++)
{
if (cl_visedicts[i].rtype == RT_PORTALSURFACE)
{
dist = DotProduct(cl_visedicts[i].origin, plane->normal)-plane->dist;
dist = fabs(dist);
if (dist < 64 && (!best || dist < bestd))
best = &cl_visedicts[i];
}
}
return best;
}
static void TransformCoord(vec3_t in, vec3_t planea[3], vec3_t planeo, vec3_t viewa[3], vec3_t viewo, vec3_t result)
{
int i;
vec3_t local;
vec3_t transformed;
float d;
local[0] = in[0] - planeo[0];
local[1] = in[1] - planeo[1];
local[2] = in[2] - planeo[2];
VectorClear(transformed);
for ( i = 0 ; i < 3 ; i++ )
{
d = DotProduct(local, planea[i]);
VectorMA(transformed, d, viewa[i], transformed);
}
result[0] = transformed[0] + viewo[0];
result[1] = transformed[1] + viewo[1];
result[2] = transformed[2] + viewo[2];
}
static void TransformDir(vec3_t in, vec3_t planea[3], vec3_t viewa[3], vec3_t result)
{
int i;
float d;
vec3_t tmp;
VectorCopy(in, tmp);
VectorClear(result);
for ( i = 0 ; i < 3 ; i++ )
{
d = DotProduct(tmp, planea[i]);
VectorMA(result, d, viewa[i], result);
}
}
static float sgn(float a)
{
if (a > 0.0F) return (1.0F);
if (a < 0.0F) return (-1.0F);
return (0.0F);
}
void R_ObliqueNearClip(mplane_t *wplane)
{
float f;
vec4_t q, c;
vec3_t ping, pong;
vec4_t vplane;
//convert world plane into view space
Matrix4x4_CM_Transform3x3(r_refdef.m_view, wplane->normal, vplane);
VectorScale(wplane->normal, wplane->dist, ping);
Matrix4x4_CM_Transform3(r_refdef.m_view, ping, pong);
vplane[3] = -DotProduct(pong, vplane);
// Calculate the clip-space corner point opposite the clipping plane
// as (sgn(clipPlane.x), sgn(clipPlane.y), 1, 1) and
// transform it into camera space by multiplying it
// by the inverse of the projection matrix
q[0] = (sgn(vplane[0]) + r_refdef.m_projection[8]) / r_refdef.m_projection[0];
q[1] = (sgn(vplane[1]) + r_refdef.m_projection[9]) / r_refdef.m_projection[5];
q[2] = -1.0F;
q[3] = (1.0F + r_refdef.m_projection[10]) / r_refdef.m_projection[14];
// Calculate the scaled plane vector
f = 2.0F / DotProduct4(vplane, q);
Vector4Scale(vplane, f, c);
// Replace the third row of the projection matrix
r_refdef.m_projection[2] = c[0];
r_refdef.m_projection[6] = c[1];
r_refdef.m_projection[10] = c[2] + 1.0F;
r_refdef.m_projection[14] = c[3];
}
void GLR_DrawPortal(batch_t *batch, batch_t **blist, int portaltype)
{
entity_t *view;
// GLdouble glplane[4];
plane_t plane;
refdef_t oldrefdef;
mesh_t *mesh = batch->mesh[batch->firstmesh];
int sort;
qbyte newvis[(MAX_MAP_LEAFS+7)/8];
if (r_refdef.recurse)
return;
if (!mesh->normals_array)
{
VectorSet(plane.normal, 0, 0, 1);
}
else
{
VectorCopy(mesh->normals_array[0], plane.normal);
}
plane.dist = DotProduct(mesh->xyz_array[0], plane.normal);
//if we're too far away from the surface, don't draw anything
if (batch->shader->flags & SHADER_AGEN_PORTAL)
{
/*there's a portal alpha blend on that surface, that fades out after this distance*/
if (DotProduct(r_refdef.vieworg, plane.normal)-plane.dist > batch->shader->portaldist)
return;
}
//if we're behind it, then also don't draw anything.
if (DotProduct(r_refdef.vieworg, plane.normal)-plane.dist < 0)
return;
TRACE(("GLR_DrawPortal: portal type %i\n", portaltype));
oldrefdef = r_refdef;
r_refdef.recurse = true;
r_refdef.externalview = true;
switch(portaltype)
{
case 1: /*fbo explicit mirror (fucked depth, working clip plane)*/
r_refdef.flipcull ^= true;
R_MirrorMatrix(&plane);
break;
case 2: /*fbo refraction (fucked depth, working clip plane)*/
case 3: /*screen copy refraction (screen depth, fucked clip planes)*/
/*refraction image (same view, just with things culled*/
r_refdef.externalview = oldrefdef.externalview;
VectorNegate(plane.normal, plane.normal);
plane.dist = -plane.dist;
//use the player's origin for r_viewleaf, because there's not much we can do anyway*/
VectorCopy(r_origin, r_refdef.pvsorigin);
if (cl.worldmodel && cl.worldmodel->funcs.LeafPVS && !r_novis.ival)
{
int lnum, i, j;
float d;
vec3_t point;
int pvsbytes = (cl.worldmodel->numleafs+7)>>3;
if (pvsbytes > sizeof(newvis))
pvsbytes = sizeof(newvis);
r_refdef.forcevis = true;
r_refdef.forcedvis = NULL;
for (i = batch->firstmesh; i < batch->meshes; i++)
{
mesh = batch->mesh[i];
VectorClear(point);
for (j = 0; j < mesh->numvertexes; j++)
VectorAdd(point, mesh->xyz_array[j], point);
VectorScale(point, 1.0f/mesh->numvertexes, point);
d = DotProduct(point, plane.normal) - plane.dist;
d += 0.1; //an epsilon on the far side
VectorMA(point, d, plane.normal, point);
lnum = cl.worldmodel->funcs.LeafnumForPoint(cl.worldmodel, point);
if (i == batch->firstmesh)
r_refdef.forcedvis = cl.worldmodel->funcs.LeafPVS(cl.worldmodel, lnum, newvis, sizeof(newvis));
else
{
if (r_refdef.forcedvis != newvis)
{
memcpy(newvis, r_refdef.forcedvis, pvsbytes);
}
r_refdef.forcedvis = cl.worldmodel->funcs.LeafPVS(cl.worldmodel, lnum, NULL, sizeof(newvis));
for (j = 0; j < pvsbytes; j+= 4)
{
*(int*)&newvis[j] |= *(int*)&r_refdef.forcedvis[j];
}
r_refdef.forcedvis = newvis;
}
}
// memset(newvis, 0xff, pvsbytes);
}
break;
default: /*q3 portal*/
if (batch->ent != &r_worldentity)
{
float d;
view = batch->ent;
d = DotProduct(r_refdef.vieworg, plane.normal) - plane.dist;
d-= 0.1; //nudge it past.
VectorAdd(r_refdef.vieworg, view->oldorigin, r_refdef.vieworg); //trivial offset for the warpzone.
VectorMA(r_refdef.vieworg, -d, plane.normal, r_refdef.pvsorigin); //clip the pvs origin to the plane.
}
else if (!(view = R_NearestPortal(&plane)) || VectorCompare(view->origin, view->oldorigin))
{
r_refdef.flipcull ^= true;
R_MirrorMatrix(&plane);
}
else
{
float d;
vec3_t paxis[3], porigin, vaxis[3], vorg;
void PerpendicularVector( vec3_t dst, const vec3_t src );
/*calculate where the surface is meant to be*/
VectorCopy(mesh->normals_array[0], paxis[0]);
PerpendicularVector(paxis[1], paxis[0]);
CrossProduct(paxis[0], paxis[1], paxis[2]);
d = DotProduct(view->origin, plane.normal) - plane.dist;
VectorMA(view->origin, -d, paxis[0], porigin);
/*grab the camera origin*/
VectorNegate(view->axis[0], vaxis[0]);
VectorNegate(view->axis[1], vaxis[1]);
VectorCopy(view->axis[2], vaxis[2]);
VectorCopy(view->oldorigin, vorg);
VectorCopy(vorg, r_refdef.pvsorigin);
/*rotate it a bit*/
RotatePointAroundVector(vaxis[1], vaxis[0], view->axis[1], sin(realtime)*4);
CrossProduct(vaxis[0], vaxis[1], vaxis[2]);
TransformCoord(oldrefdef.vieworg, paxis, porigin, vaxis, vorg, r_refdef.vieworg);
TransformDir(vpn, paxis, vaxis, vpn);
TransformDir(vright, paxis, vaxis, vright);
TransformDir(vup, paxis, vaxis, vup);
}
break;
}
Matrix4x4_CM_ModelViewMatrixFromAxis(r_refdef.m_view, vpn, vright, vup, r_refdef.vieworg);
VectorAngles(vpn, vup, r_refdef.viewangles);
VectorCopy(r_refdef.vieworg, r_origin);
/*FIXME: the batch stuff should be done in renderscene*/
/*fixup the first mesh index*/
for (sort = 0; sort < SHADER_SORT_COUNT; sort++)
for (batch = blist[sort]; batch; batch = batch->next)
{
batch->firstmesh = batch->meshes;
}
GL_CullFace(0);
/*FIXME: can we get away with stenciling the screen?*/
/*Add to frustum culling instead of clip planes?*/
// if (qglClipPlane)
// {
// glplane[0] = -plane.normal[0];
// glplane[1] = -plane.normal[1];
// glplane[2] = -plane.normal[2];
// glplane[3] = plane.dist;
// qglClipPlane(GL_CLIP_PLANE0, glplane);
// qglEnable(GL_CLIP_PLANE0);
// }
frustum[4].normal[0] = plane.normal[0];
frustum[4].normal[1] = plane.normal[1];
frustum[4].normal[2] = plane.normal[2];
frustum[4].dist = plane.dist + 0.01;
if (portaltype == 1 || portaltype == 2)
R_ObliqueNearClip(&frustum[4]);
R_RenderScene();
// if (qglClipPlane)
// qglDisable(GL_CLIP_PLANE0);
for (sort = 0; sort < SHADER_SORT_COUNT; sort++)
for (batch = blist[sort]; batch; batch = batch->next)
{
batch->firstmesh = 0;
}
r_refdef = oldrefdef;
/*broken stuff*/
AngleVectors (r_refdef.viewangles, vpn, vright, vup);
VectorCopy (r_refdef.vieworg, r_origin);
R_SetFrustum (r_refdef.m_projection, r_refdef.m_view);
if (qglLoadMatrixf)
{
/*put GL back the way it was*/
qglMatrixMode(GL_PROJECTION);
qglLoadMatrixf(r_refdef.m_projection);
qglMatrixMode(GL_MODELVIEW);
qglLoadMatrixf(r_refdef.m_view);
}
GL_CullFace(0);
TRACE(("GLR_DrawPortal: portal drawn\n"));
#ifdef warningmsg
#pragma warningmsg("warning: there's a bug with rtlights in portals, culling is broken or something. May also be loading the wrong matrix")
#endif
}
/*
=============
R_Clear
=============
*/
int gldepthfunc = GL_LEQUAL;
void R_Clear (void)
{
/*tbh, this entire function should be in the backend*/
GL_ForceDepthWritable();
{
if (r_clear.ival && r_refdef.grect.x == 0 && r_refdef.grect.y == 0 && r_refdef.grect.width == vid.width && r_refdef.grect.height == vid.height && !(r_refdef.flags & Q2RDF_NOWORLDMODEL))
{
qglClearColor(1, 0, 0, 0);
qglClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}
else
qglClear (GL_DEPTH_BUFFER_BIT);
gldepthmin = 0;
gldepthmax = 1;
gldepthfunc=GL_LEQUAL;
}
}
#if 0
void GLR_SetupFog (void)
{
if (r_viewleaf)// && r_viewcontents != FTECONTENTS_EMPTY)
{
// static fogcolour;
float fogcol[4]={0};
float fogperc;
float fogdist;
fogperc=0;
fogdist=512;
switch(r_viewcontents)
{
case FTECONTENTS_WATER:
fogcol[0] = 64/255.0;
fogcol[1] = 128/255.0;
fogcol[2] = 192/255.0;
fogperc=0.2;
fogdist=512;
break;
case FTECONTENTS_SLIME:
fogcol[0] = 32/255.0;
fogcol[1] = 192/255.0;
fogcol[2] = 92/255.0;
fogperc=1;
fogdist=256;
break;
case FTECONTENTS_LAVA:
fogcol[0] = 192/255.0;
fogcol[1] = 32/255.0;
fogcol[2] = 64/255.0;
fogperc=1;
fogdist=128;
break;
default:
fogcol[0] = 192/255.0;
fogcol[1] = 192/255.0;
fogcol[2] = 192/255.0;
fogperc=1;
fogdist=1024;
break;
}
if (fogperc)
{
qglFogi(GL_FOG_MODE, GL_LINEAR);
qglFogfv(GL_FOG_COLOR, fogcol);
qglFogf(GL_FOG_DENSITY, fogperc);
qglFogf(GL_FOG_START, 1);
qglFogf(GL_FOG_END, fogdist);
qglEnable(GL_FOG);
}
}
}
#endif
static void R_RenderMotionBlur(void)
{
int vwidth = 1, vheight = 1;
float vs, vt, cs, ct;
shader_t *shader;
#if !defined(ANDROID) && !defined(NACL)
//figure out the size of our texture.
if (r_config.texture_non_power_of_two)
{ //we can use any size, supposedly
vwidth = vid.pixelwidth;
vheight = vid.pixelheight;
}
else
{ //limit the texture size to square and use padding.
while (vwidth < vid.pixelwidth)
vwidth *= 2;
while (vheight < vid.pixelheight)
vheight *= 2;
}
//blend the last frame onto the scene
//the maths is because our texture is over-sized (must be power of two)
cs = vs = (float)vid.pixelwidth / vwidth * 0.5;
ct = vt = (float)vid.pixelheight / vheight * 0.5;
vs *= gl_motionblurscale.value;
vt *= gl_motionblurscale.value;
//render using our texture
shader = R_RegisterShader("postproc_motionblur", SUF_NONE,
"{\n"
"program default2d\n"
"{\n"
"map $sourcecolour\n"
"blendfunc blend\n"
"}\n"
"}\n"
);
GLBE_RenderToTexture(sceneblur_texture, r_nulltex, r_nulltex, r_nulltex, false);
R2D_ImageColours(1, 1, 1, gl_motionblur.value);
R2D_Image(0, 0, vid.width, vid.height, cs-vs, ct+vt, cs+vs, ct-vt, shader);
GLBE_RenderToTexture(r_nulltex, r_nulltex, r_nulltex, r_nulltex, false);
//grab the current image so we can feed that back into the next frame.
GL_MTBind(0, GL_TEXTURE_2D, sceneblur_texture);
//copy the image into the texture so that we can play with it next frame too!
qglCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 0, 0, vwidth, vheight, 0);
qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
#endif
}
/*FIXME: we could use geometry shaders to draw to all 6 faces at once*/
qboolean R_RenderScene_Cubemap(void)
{
int cmapsize = 512;
int i;
static vec3_t ang[6] =
{ {0, -90, 0}, {0, 90, 0},
{90, 0, 0}, {-90, 0, 0},
{0, 0, 0}, {0, -180, 0} };
vec3_t saveang;
vrect_t vrect;
vrect_t prect;
shader_t *shader;
int facemask;
/*needs glsl*/
if (!gl_config.arb_shader_objects)
return false;
if (!ffov.value)
return false;
if (!cls.allow_postproc)
return false;
facemask = 0;
if (ffov.value < 0)
{
shader = R_RegisterShader("postproc_panorama", SUF_NONE,
"{\n"
"program postproc_panorama\n"
"{\n"
"map $sourcecube\n"
"}\n"
"}\n"
);
//panoramic view needs at most the four sides
facemask |= 1<<4; /*front view*/
if (ffov.value < -90)
{
facemask |= (1<<0) | (1<<1); /*side views*/
if (ffov.value < -270)
facemask |= 1<<5; /*back view*/
}
}
else
{
shader = R_RegisterShader("postproc_fisheye", SUF_NONE,
"{\n"
"program postproc_fisheye\n"
"{\n"
"map $sourcecube\n"
"}\n"
"}\n"
);
//fisheye view sees up to a full sphere
facemask |= 1<<4; /*front view*/
if (ffov.value > 77)
facemask |= (1<<0) | (1<<1) | (1<<2) | (1<<3); /*side/top/bottom views*/
if (ffov.value > 270)
facemask |= 1<<5; /*back view*/
}
vrect = r_refdef.vrect;
prect = r_refdef.pxrect;
// prect.x = (vrect.x * vid.pixelwidth)/vid.width;
// prect.width = (vrect.width * vid.pixelwidth)/vid.width;
// prect.y = (vrect.y * vid.pixelheight)/vid.height;
// prect.height = (vrect.height * vid.pixelheight)/vid.height;
if (r_config.texture_non_power_of_two)
{
if (prect.width < prect.height)
cmapsize = prect.width;
else
cmapsize = prect.height;
}
else
{
while (cmapsize > prect.width || cmapsize > prect.height)
{
cmapsize /= 2;
}
}
VectorCopy(r_refdef.viewangles, saveang);
saveang[2] = 0;
if (!TEXVALID(scenepp_postproc_cube) || cmapsize != scenepp_postproc_cube_size)
{
if (TEXVALID(scenepp_postproc_cube))
GL_DestroyTexture(scenepp_postproc_cube);
scenepp_postproc_cube = GL_AllocNewTexture("***fish***", cmapsize, cmapsize, 0);
GL_MTBind(0, GL_TEXTURE_CUBE_MAP_ARB, scenepp_postproc_cube);
for (i = 0; i < 6; i++)
qglCopyTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + i, 0, GL_RGB, 0, 0, cmapsize, cmapsize, 0);
qglTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
qglTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
qglTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
qglTexParameteri(GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
scenepp_postproc_cube_size = cmapsize;
}
vrect = r_refdef.vrect; //save off the old vrect
r_refdef.vrect.width = (cmapsize * vid.width) / vid.pixelwidth;
r_refdef.vrect.height = (cmapsize * vid.height) / vid.pixelheight;
r_refdef.vrect.x = 0;
r_refdef.vrect.y = prect.y;
ang[0][0] = -saveang[0];
ang[0][1] = -90;
ang[0][2] = -saveang[0];
ang[1][0] = -saveang[0];
ang[1][1] = 90;
ang[1][2] = saveang[0];
ang[5][0] = -saveang[0]*2;
for (i = 0; i < 6; i++)
{
if (!(facemask & (1<<i)))
continue;
r_refdef.fov_x = 90;
r_refdef.fov_y = 90;
r_refdef.viewangles[0] = saveang[0]+ang[i][0];
r_refdef.viewangles[1] = saveang[1]+ang[i][1];
r_refdef.viewangles[2] = saveang[2]+ang[i][2];
R_Clear ();
GL_SetShaderState2D(false);
// render normal view
R_RenderScene ();
GL_MTBind(0, GL_TEXTURE_CUBE_MAP_ARB, scenepp_postproc_cube);
//FIXME: use a render target instead.
qglCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + i, 0, 0, 0, 0, vid.pixelheight - (prect.y + cmapsize), cmapsize, cmapsize);
}
r_refdef.vrect = vrect;
qglViewport (prect.x, vid.pixelheight - (prect.y+prect.height), prect.width, prect.height);
// go 2d
qglMatrixMode(GL_PROJECTION);
qglPushMatrix();
qglLoadIdentity ();
qglOrtho (0, vid.width, vid.height, 0, -99999, 99999);
qglMatrixMode(GL_MODELVIEW);
qglPushMatrix();
qglLoadIdentity ();
// draw it through the shader
R2D_Image(0, 0, vid.width, vid.height, -0.5, 0.5, 0.5, -0.5, shader);
//revert the matricies
qglMatrixMode(GL_PROJECTION);
qglPopMatrix();
qglMatrixMode(GL_MODELVIEW);
qglPopMatrix();
return true;
}
/*
================
R_RenderView
r_refdef must be set before the first call
================
*/
void GLR_RenderView (void)
{
double time1 = 0, time2;
checkglerror();
if (r_norefresh.value || !vid.pixelwidth || !vid.pixelheight)
{
GL_DoSwap();
return;
}
if (!(r_refdef.flags & Q2RDF_NOWORLDMODEL))
if (!r_worldentity.model || !cl.worldmodel)
{
GL_DoSwap();
return;
}
// Sys_Error ("R_RenderView: NULL worldmodel");
if (qglPNTrianglesiATI)
{
if (gl_ati_truform_type.ival)
{ //linear
qglPNTrianglesiATI(GL_PN_TRIANGLES_NORMAL_MODE_ATI, GL_PN_TRIANGLES_NORMAL_MODE_LINEAR_ATI);
qglPNTrianglesiATI(GL_PN_TRIANGLES_POINT_MODE_ATI, GL_PN_TRIANGLES_POINT_MODE_CUBIC_ATI);
}
else
{ //quadric
qglPNTrianglesiATI(GL_PN_TRIANGLES_NORMAL_MODE_ATI, GL_PN_TRIANGLES_NORMAL_MODE_QUADRATIC_ATI);
qglPNTrianglesiATI(GL_PN_TRIANGLES_POINT_MODE_ATI, GL_PN_TRIANGLES_POINT_MODE_CUBIC_ATI);
}
qglPNTrianglesfATI(GL_PN_TRIANGLES_TESSELATION_LEVEL_ATI, gl_ati_truform_tesselation.value);
}
if (gl_finish.ival)
{
RSpeedMark();
qglFinish ();
RSpeedEnd(RSPEED_FINISH);
}
if (r_speeds.ival)
{
time1 = Sys_DoubleTime ();
c_brush_polys = 0;
c_alias_polys = 0;
}
if (!(r_refdef.flags & Q2RDF_NOWORLDMODEL) && R_RenderScene_Cubemap())
{
}
else
{
GL_SetShaderState2D(false);
R_Clear ();
// GLR_SetupFog ();
// render normal view
R_RenderScene ();
}
// qglDisable(GL_FOG);
if (r_speeds.ival)
{
// glFinish ();
time2 = Sys_DoubleTime ();
RQuantAdd(RQUANT_MSECS, (int)((time2-time1)*1000000));
RQuantAdd(RQUANT_WPOLYS, c_brush_polys);
RQuantAdd(RQUANT_EPOLYS, c_alias_polys);
// Con_Printf ("%3i ms %4i wpoly %4i epoly\n", (int)((time2-time1)*1000), c_brush_polys, c_alias_polys);
}
checkglerror();
GL_Set2D (false);
if (r_refdef.flags & Q2RDF_NOWORLDMODEL)
return;
if (r_bloom.value)
R_BloomBlend();
// SCENE POST PROCESSING
// we check if we need to use any shaders - currently it's just waterwarp
if ((r_waterwarp.value>0 && (r_viewcontents & FTECONTENTS_WATER)))
{
if (scenepp_waterwarp)
{
R2D_ScalePic(0, 0, vid.width, vid.height, scenepp_waterwarp);
}
}
if (gl_motionblur.value>0 && gl_motionblur.value < 1 && qglCopyTexImage2D)
R_RenderMotionBlur();
if (*r_postprocshader.string)
{
shader_t *postproc = R_RegisterCustom(r_postprocshader.string, SUF_NONE, NULL, NULL);
if (postproc)
{
R2D_ScalePic(0, 0, vid.width, vid.height, postproc);
}
}
checkglerror();
}
#endif
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