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quake2forge/ref_gl/gl_rmain.c
Ragnvald Maartmann-Moe IV 1d758ae3c4 Merge in relnev's changes.
2002-01-12 02:14:09 +00:00

1766 lines
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/*
Copyright (C) 1997-2001 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 <ctype.h>
#include "gl_local.h"
void R_Clear (void);
viddef_t vid;
refimport_t ri;
int GL_Texture0, GL_Texture1;
model_t *r_worldmodel;
float gldepthmin, gldepthmax;
glconfig_t gl_config;
glstate_t gl_state;
image_t *r_notexture; // use for bad textures
image_t *r_particletexture; // little dot for particles
entity_t *currententity;
model_t *currentmodel;
cplane_t frustum[4];
int r_visframecount; // bumped when going to a new PVS
int r_framecount; // used for dlight push checking
int c_brush_polys, c_alias_polys;
float v_blend[4]; // final blending color
byte color_white[4] = {255, 255, 255, 255};
byte color_black[4] = {0, 0, 0, 128};
void GL_Strings_f( void );
//
// view origin
//
vec3_t vup;
vec3_t vpn;
vec3_t vright;
vec3_t r_origin;
float r_world_matrix[16];
float r_base_world_matrix[16];
//
// screen size info
//
refdef_t r_newrefdef;
int r_viewcluster, r_viewcluster2, r_oldviewcluster, r_oldviewcluster2;
cvar_t *r_norefresh;
cvar_t *r_drawentities;
cvar_t *r_drawworld;
cvar_t *r_speeds;
cvar_t *r_fullbright;
cvar_t *r_novis;
cvar_t *r_nocull;
cvar_t *r_lerpmodels;
cvar_t *r_lefthand;
cvar_t *r_lightlevel; // FIXME: This is a HACK to get the client's light level
cvar_t *gl_nosubimage;
cvar_t *gl_allow_software;
cvar_t *gl_vertex_arrays;
cvar_t *gl_particle_min_size;
cvar_t *gl_particle_max_size;
cvar_t *gl_particle_size;
cvar_t *gl_particle_att_a;
cvar_t *gl_particle_att_b;
cvar_t *gl_particle_att_c;
cvar_t *gl_ext_swapinterval;
cvar_t *gl_ext_palettedtexture;
cvar_t *gl_ext_multitexture;
cvar_t *gl_ext_pointparameters;
cvar_t *gl_ext_compiled_vertex_array;
cvar_t *gl_log;
cvar_t *gl_bitdepth;
cvar_t *gl_drawbuffer;
cvar_t *gl_driver;
cvar_t *gl_lightmap;
cvar_t *gl_shadows;
cvar_t *gl_mode;
cvar_t *gl_dynamic;
cvar_t *gl_monolightmap;
cvar_t *gl_modulate;
cvar_t *gl_nobind;
cvar_t *gl_round_down;
cvar_t *gl_picmip;
cvar_t *gl_skymip;
cvar_t *gl_showtris;
cvar_t *gl_ztrick;
cvar_t *gl_finish;
cvar_t *gl_clear;
cvar_t *gl_cull;
cvar_t *gl_polyblend;
cvar_t *gl_flashblend;
cvar_t *gl_playermip;
cvar_t *gl_saturatelighting;
cvar_t *gl_swapinterval;
cvar_t *gl_texturemode;
cvar_t *gl_texturealphamode;
cvar_t *gl_texturesolidmode;
cvar_t *gl_lockpvs;
cvar_t *gl_3dlabs_broken;
cvar_t *vid_fullscreen;
cvar_t *vid_gamma;
cvar_t *vid_ref;
/*
=================
R_CullBox
Returns true if the box is completely outside the frustom
=================
*/
qboolean R_CullBox (vec3_t mins, vec3_t maxs)
{
int i;
if (r_nocull->value)
return false;
for (i=0 ; i<4 ; i++)
if ( BOX_ON_PLANE_SIDE(mins, maxs, &frustum[i]) == 2)
return true;
return false;
}
void R_RotateForEntity (entity_t *e)
{
qglTranslatef (e->origin[0], e->origin[1], e->origin[2]);
qglRotatef (e->angles[1], 0, 0, 1);
qglRotatef (-e->angles[0], 0, 1, 0);
qglRotatef (-e->angles[2], 1, 0, 0);
}
/*
=============================================================
SPRITE MODELS
=============================================================
*/
/*
=================
R_DrawSpriteModel
=================
*/
void R_DrawSpriteModel (entity_t *e)
{
float alpha = 1.0F;
vec3_t point;
dsprframe_t *frame;
float *up, *right;
dsprite_t *psprite;
// don't even bother culling, because it's just a single
// polygon without a surface cache
psprite = (dsprite_t *)currentmodel->extradata;
#if 0
if (e->frame < 0 || e->frame >= psprite->numframes)
{
ri.Con_Printf (PRINT_ALL, "no such sprite frame %i\n", e->frame);
e->frame = 0;
}
#endif
e->frame %= psprite->numframes;
frame = &psprite->frames[e->frame];
#if 0
if (psprite->type == SPR_ORIENTED)
{ // bullet marks on walls
vec3_t v_forward, v_right, v_up;
AngleVectors (currententity->angles, v_forward, v_right, v_up);
up = v_up;
right = v_right;
}
else
#endif
{ // normal sprite
up = vup;
right = vright;
}
if ( e->flags & RF_TRANSLUCENT )
alpha = e->alpha;
if (alpha != 1.0F) {
qglEnable (GL_BLEND);
color_white[3] = alpha * 255;
}
qglColor4ubv (color_white);
GL_Bind(currentmodel->skins[e->frame]->texnum);
GL_TexEnv( GL_MODULATE );
if ( alpha == 1.0 )
qglEnable (GL_ALPHA_TEST);
else
qglDisable( GL_ALPHA_TEST );
qglBegin (GL_QUADS);
qglTexCoord2f (0, 1);
VectorMA (e->origin, -frame->origin_y, up, point);
VectorMA (point, -frame->origin_x, right, point);
qglVertex3fv (point);
qglTexCoord2f (0, 0);
VectorMA (e->origin, frame->height - frame->origin_y, up, point);
VectorMA (point, -frame->origin_x, right, point);
qglVertex3fv (point);
qglTexCoord2f (1, 0);
VectorMA (e->origin, frame->height - frame->origin_y, up, point);
VectorMA (point, frame->width - frame->origin_x, right, point);
qglVertex3fv (point);
qglTexCoord2f (1, 1);
VectorMA (e->origin, -frame->origin_y, up, point);
VectorMA (point, frame->width - frame->origin_x, right, point);
qglVertex3fv (point);
qglEnd ();
qglDisable (GL_ALPHA_TEST);
GL_TexEnv( GL_REPLACE );
if (alpha != 1.0F) {
qglDisable (GL_BLEND);
color_white[3] = 255;
}
qglColor4ubv (color_white);
}
//==================================================================================
/*
=============
R_DrawNullModel
=============
*/
void R_DrawNullModel (void)
{
vec3_t shadelight;
int i;
if ( currententity->flags & RF_FULLBRIGHT )
shadelight[0] = shadelight[1] = shadelight[2] = 1.0F;
else
R_LightPoint (currententity->origin, shadelight);
qglPushMatrix ();
R_RotateForEntity (currententity);
qglDisable (GL_TEXTURE_2D);
qglColor3fv (shadelight);
qglBegin (GL_TRIANGLE_FAN);
qglVertex3f (0, 0, -16);
for (i=0 ; i<=4 ; i++)
qglVertex3f (16*cos(i*M_PI/2), 16*sin(i*M_PI/2), 0);
qglEnd ();
qglBegin (GL_TRIANGLE_FAN);
qglVertex3f (0, 0, 16);
for (i=4 ; i>=0 ; i--)
qglVertex3f (16*cos(i*M_PI/2), 16*sin(i*M_PI/2), 0);
qglEnd ();
qglColor3ubv (color_white);
qglPopMatrix ();
qglEnable (GL_TEXTURE_2D);
}
/*
=============
R_DrawEntitiesOnList
=============
*/
void R_DrawEntitiesOnList (void)
{
int i;
if (!r_drawentities->value)
return;
// draw non-transparent first
for (i=0 ; i<r_newrefdef.num_entities ; i++)
{
currententity = &r_newrefdef.entities[i];
if (currententity->flags & RF_TRANSLUCENT)
continue; // solid
if ( currententity->flags & RF_BEAM )
{
R_DrawBeam( currententity );
}
else
{
currentmodel = currententity->model;
if (!currentmodel)
{
R_DrawNullModel ();
continue;
}
switch (currentmodel->type)
{
case mod_alias:
R_DrawAliasModel (currententity);
break;
case mod_brush:
R_DrawBrushModel (currententity);
break;
case mod_sprite:
R_DrawSpriteModel (currententity);
break;
default:
ri.Sys_Error (ERR_DROP, "Bad modeltype");
break;
}
}
}
// draw transparent entities
// we could sort these if it ever becomes a problem...
qglDepthMask (0); // no z writes
for (i=0 ; i<r_newrefdef.num_entities ; i++)
{
currententity = &r_newrefdef.entities[i];
if (!(currententity->flags & RF_TRANSLUCENT))
continue; // solid
if ( currententity->flags & RF_BEAM )
{
R_DrawBeam( currententity );
}
else
{
currentmodel = currententity->model;
if (!currentmodel)
{
R_DrawNullModel ();
continue;
}
switch (currentmodel->type)
{
case mod_alias:
R_DrawAliasModel (currententity);
break;
case mod_brush:
R_DrawBrushModel (currententity);
break;
case mod_sprite:
R_DrawSpriteModel (currententity);
break;
default:
ri.Sys_Error (ERR_DROP, "Bad modeltype");
break;
}
}
}
qglDepthMask (1); // back to writing
}
/*
** GL_DrawParticles
**
*/
void GL_DrawParticles (void)
{
const particle_t *p;
int i;
vec3_t up, right, up_right_scale, down_right_scale, VA[4];
float scale;
byte color[4];
GL_Bind(r_particletexture->texnum);
qglDepthMask( GL_FALSE ); // no z buffering
qglEnable( GL_BLEND );
GL_TexEnv( GL_MODULATE );
qglBegin( GL_QUADS );
for (p = r_newrefdef.particles, i = 0; i < r_newrefdef.num_particles;
i++, p++)
{
// hack a scale up to keep particles from disapearing
scale = ( p->origin[0] - r_origin[0] ) * vpn[0] +
( p->origin[1] - r_origin[1] ) * vpn[1] +
( p->origin[2] - r_origin[2] ) * vpn[2];
if (scale < 20)
scale = 0.75;
else
scale = 0.75 + scale * 0.003;
VectorScale (vup, scale, up);
VectorScale (vright, scale, right);
VectorAdd (up, right, up_right_scale);
VectorSubtract (right, up, down_right_scale);
VectorSubtract (p->origin, down_right_scale, VA[0]);
VectorAdd (p->origin, up_right_scale, VA[1]);
VectorAdd (p->origin, down_right_scale, VA[2]);
VectorSubtract (p->origin, up_right_scale, VA[3]);
*(int *)color = d_8to24table[p->color];
color[3] = p->alpha*255;
qglColor4ubv( color );
qglTexCoord2f( 0.0, 0.0 );
qglVertex3fv( VA[0] );
qglTexCoord2f( 1.0, 0.0 );
qglVertex3fv( VA[1] );
qglTexCoord2f( 1.0, 1.0);
qglVertex3fv( VA[2] );
qglTexCoord2f( 0.0, 1.0 );
qglVertex3fv( VA[3] );
}
qglEnd ();
qglDisable( GL_BLEND );
qglColor4ubv (color_white);
qglDepthMask( 1 ); // back to normal Z buffering
GL_TexEnv( GL_REPLACE );
}
/*
===============
R_DrawParticles
===============
*/
void R_DrawParticles (void)
{
if ( gl_ext_pointparameters->value && qglPointParameterfEXT )
{
int i;
unsigned char color[4];
const particle_t *p;
qglDepthMask( GL_FALSE );
qglEnable( GL_BLEND );
qglDisable( GL_TEXTURE_2D );
qglPointSize( gl_particle_size->value );
qglBegin( GL_POINTS );
for ( i = 0, p = r_newrefdef.particles; i < r_newrefdef.num_particles; i++, p++ )
{
*(int *)color = d_8to24table[p->color];
color[3] = p->alpha*255;
qglColor4ubv( color );
qglVertex3fv( p->origin );
}
qglEnd();
qglDisable( GL_BLEND );
qglColor4ubv (color_white);
qglDepthMask( GL_TRUE );
qglEnable( GL_TEXTURE_2D );
}
else
{
GL_DrawParticles ();
}
}
/*
============
R_PolyBlend
============
*/
void R_PolyBlend (void)
{
if (!gl_polyblend->value)
return;
if (!v_blend[3])
return;
qglDisable (GL_ALPHA_TEST);
qglEnable (GL_BLEND);
qglDisable (GL_DEPTH_TEST);
qglDisable (GL_TEXTURE_2D);
qglLoadIdentity ();
// FIXME: get rid of these
qglRotatef (-90, 1, 0, 0); // put Z going up
qglRotatef (90, 0, 0, 1); // put Z going up
qglColor4fv (v_blend);
qglBegin (GL_QUADS);
qglVertex3f (10, 100, 100);
qglVertex3f (10, -100, 100);
qglVertex3f (10, -100, -100);
qglVertex3f (10, 100, -100);
qglEnd ();
qglDisable (GL_BLEND);
qglEnable (GL_TEXTURE_2D);
qglEnable (GL_ALPHA_TEST);
qglColor4ubv (color_white);
}
//=======================================================================
int SignbitsForPlane (cplane_t *out)
{
int bits, j;
// for fast box on planeside test
bits = 0;
for (j=0 ; j<3 ; j++)
{
if (out->normal[j] < 0)
bits |= 1<<j;
}
return bits;
}
void R_SetFrustum (void)
{
int i;
#if 0
/*
** this code is wrong, since it presume a 90 degree FOV both in the
** horizontal and vertical plane
*/
// front side is visible
VectorAdd (vpn, vright, frustum[0].normal);
VectorSubtract (vpn, vright, frustum[1].normal);
VectorAdd (vpn, vup, frustum[2].normal);
VectorSubtract (vpn, vup, frustum[3].normal);
// we theoretically don't need to normalize these vectors, but I do it
// anyway so that debugging is a little easier
VectorNormalize( frustum[0].normal );
VectorNormalize( frustum[1].normal );
VectorNormalize( frustum[2].normal );
VectorNormalize( frustum[3].normal );
#else
// rotate VPN right by FOV_X/2 degrees
RotatePointAroundVector( frustum[0].normal, vup, vpn, -(90-r_newrefdef.fov_x / 2 ) );
// rotate VPN left by FOV_X/2 degrees
RotatePointAroundVector( frustum[1].normal, vup, vpn, 90-r_newrefdef.fov_x / 2 );
// rotate VPN up by FOV_X/2 degrees
RotatePointAroundVector( frustum[2].normal, vright, vpn, 90-r_newrefdef.fov_y / 2 );
// rotate VPN down by FOV_X/2 degrees
RotatePointAroundVector( frustum[3].normal, vright, vpn, -( 90 - r_newrefdef.fov_y / 2 ) );
#endif
for (i=0 ; i<4 ; i++)
{
frustum[i].type = PLANE_ANYZ;
frustum[i].dist = DotProduct (r_origin, frustum[i].normal);
frustum[i].signbits = SignbitsForPlane (&frustum[i]);
}
}
//=======================================================================
/*
===============
R_SetupFrame
===============
*/
void R_SetupFrame (void)
{
int i;
mleaf_t *leaf;
r_framecount++;
// build the transformation matrix for the given view angles
VectorCopy (r_newrefdef.vieworg, r_origin);
AngleVectors (r_newrefdef.viewangles, vpn, vright, vup);
// current viewcluster
if ( !( r_newrefdef.rdflags & RDF_NOWORLDMODEL ) )
{
r_oldviewcluster = r_viewcluster;
r_oldviewcluster2 = r_viewcluster2;
leaf = Mod_PointInLeaf (r_origin, r_worldmodel);
r_viewcluster = r_viewcluster2 = leaf->cluster;
// check above and below so crossing solid water doesn't draw wrong
if (!leaf->contents)
{ // look down a bit
vec3_t temp;
VectorCopy (r_origin, temp);
temp[2] -= 16;
leaf = Mod_PointInLeaf (temp, r_worldmodel);
if ( !(leaf->contents & CONTENTS_SOLID) &&
(leaf->cluster != r_viewcluster2) )
r_viewcluster2 = leaf->cluster;
}
else
{ // look up a bit
vec3_t temp;
VectorCopy (r_origin, temp);
temp[2] += 16;
leaf = Mod_PointInLeaf (temp, r_worldmodel);
if ( !(leaf->contents & CONTENTS_SOLID) &&
(leaf->cluster != r_viewcluster2) )
r_viewcluster2 = leaf->cluster;
}
}
for (i=0 ; i<4 ; i++)
v_blend[i] = r_newrefdef.blend[i];
c_brush_polys = 0;
c_alias_polys = 0;
// clear out the portion of the screen that the NOWORLDMODEL defines
if ( r_newrefdef.rdflags & RDF_NOWORLDMODEL )
{
qglEnable( GL_SCISSOR_TEST );
qglClearColor( 0.3, 0.3, 0.3, 1 );
qglScissor( r_newrefdef.x, vid.height - r_newrefdef.height - r_newrefdef.y, r_newrefdef.width, r_newrefdef.height );
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
qglClearColor( 1, 0, 0.5, 0.5 );
qglDisable( GL_SCISSOR_TEST );
}
}
void MYgluPerspective( GLdouble fovy, GLdouble aspect,
GLdouble zNear, GLdouble zFar )
{
GLdouble xmin, xmax, ymin, ymax;
ymax = zNear * tan( fovy * M_PI / 360.0 );
ymin = -ymax;
xmin = ymin * aspect;
xmax = ymax * aspect;
xmin += -( 2 * gl_state.camera_separation ) / zNear;
xmax += -( 2 * gl_state.camera_separation ) / zNear;
qglFrustum( xmin, xmax, ymin, ymax, zNear, zFar );
}
/*
=============
R_SetupGL
=============
*/
void R_SetupGL (void)
{
float screenaspect;
// float yfov;
int x, x2, y2, y, w, h;
//
// set up viewport
//
x = floor(r_newrefdef.x * vid.width / vid.width);
x2 = ceil((r_newrefdef.x + r_newrefdef.width) * vid.width / vid.width);
y = floor(vid.height - r_newrefdef.y * vid.height / vid.height);
y2 = ceil(vid.height - (r_newrefdef.y + r_newrefdef.height) * vid.height / vid.height);
w = x2 - x;
h = y - y2;
qglViewport (x, y2, w, h);
//
// set up projection matrix
//
screenaspect = (float)r_newrefdef.width/r_newrefdef.height;
// yfov = 2*atan((float)r_newrefdef.height/r_newrefdef.width)*180/M_PI;
qglMatrixMode(GL_PROJECTION);
qglLoadIdentity ();
MYgluPerspective (r_newrefdef.fov_y, screenaspect, 4, 4096);
qglCullFace(GL_FRONT);
qglMatrixMode(GL_MODELVIEW);
qglLoadIdentity ();
qglRotatef (-90, 1, 0, 0); // put Z going up
qglRotatef (90, 0, 0, 1); // put Z going up
qglRotatef (-r_newrefdef.viewangles[2], 1, 0, 0);
qglRotatef (-r_newrefdef.viewangles[0], 0, 1, 0);
qglRotatef (-r_newrefdef.viewangles[1], 0, 0, 1);
qglTranslatef (-r_newrefdef.vieworg[0], -r_newrefdef.vieworg[1], -r_newrefdef.vieworg[2]);
// if ( gl_state.camera_separation != 0 && gl_state.stereo_enabled )
// qglTranslatef ( gl_state.camera_separation, 0, 0 );
qglGetFloatv (GL_MODELVIEW_MATRIX, r_world_matrix);
//
// set drawing parms
//
if (gl_cull->value)
qglEnable(GL_CULL_FACE);
else
qglDisable(GL_CULL_FACE);
qglDisable(GL_BLEND);
qglDisable(GL_ALPHA_TEST);
qglEnable(GL_DEPTH_TEST);
}
/*
=============
R_Clear
=============
*/
void R_Clear (void)
{
if (gl_ztrick->value)
{
static int trickframe;
if (gl_clear->value)
qglClear (GL_COLOR_BUFFER_BIT);
trickframe++;
if (trickframe & 1)
{
gldepthmin = 0;
gldepthmax = 0.49999;
qglDepthFunc (GL_LEQUAL);
}
else
{
gldepthmin = 1;
gldepthmax = 0.5;
qglDepthFunc (GL_GEQUAL);
}
}
else
{
if (gl_clear->value)
qglClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
else
qglClear (GL_DEPTH_BUFFER_BIT);
gldepthmin = 0;
gldepthmax = 1;
qglDepthFunc (GL_LEQUAL);
}
qglDepthRange (gldepthmin, gldepthmax);
}
void R_Flash( void )
{
R_PolyBlend ();
}
/*
================
R_RenderView
r_newrefdef must be set before the first call
================
*/
void R_RenderView (refdef_t *fd)
{
if (r_norefresh->value)
return;
r_newrefdef = *fd;
if (!r_worldmodel && !( r_newrefdef.rdflags & RDF_NOWORLDMODEL ) )
ri.Sys_Error (ERR_DROP, "R_RenderView: NULL worldmodel");
if (r_speeds->value)
{
c_brush_polys = 0;
c_alias_polys = 0;
}
R_PushDlights ();
if (gl_finish->value)
qglFinish ();
R_SetupFrame ();
R_SetFrustum ();
R_SetupGL ();
R_MarkLeaves (); // done here so we know if we're in water
R_DrawWorld ();
R_DrawEntitiesOnList ();
R_RenderDlights ();
R_DrawParticles ();
R_DrawAlphaSurfaces ();
R_Flash();
if (r_speeds->value)
{
ri.Con_Printf (PRINT_ALL, "%4i wpoly %4i epoly %i tex %i lmaps\n",
c_brush_polys,
c_alias_polys,
c_visible_textures,
c_visible_lightmaps);
}
}
void R_SetGL2D (void)
{
// set 2D virtual screen size
qglViewport (0,0, vid.width, vid.height);
qglMatrixMode(GL_PROJECTION);
qglLoadIdentity ();
qglOrtho (0, vid.width, vid.height, 0, -99999, 99999);
qglMatrixMode(GL_MODELVIEW);
qglLoadIdentity ();
qglDisable (GL_DEPTH_TEST);
qglDisable (GL_CULL_FACE);
qglDisable (GL_BLEND);
qglEnable (GL_ALPHA_TEST);
qglColor4ubv (color_white);
}
/*
static void GL_DrawColoredStereoLinePair( float r, float g, float b, float y )
{
qglColor3f( r, g, b );
qglVertex2f( 0, y );
qglVertex2f( vid.width, y );
qglColor3ubv (color_black);
qglVertex2f( 0, y + 1 );
qglVertex2f( vid.width, y + 1 );
}
static void GL_DrawStereoPattern( void )
{
int i;
if ( !( gl_config.renderer & GL_RENDERER_INTERGRAPH ) )
return;
if ( !gl_state.stereo_enabled )
return;
R_SetGL2D();
qglDrawBuffer( GL_BACK_LEFT );
for ( i = 0; i < 20; i++ )
{
qglBegin( GL_LINES );
GL_DrawColoredStereoLinePair( 1, 0, 0, 0 );
GL_DrawColoredStereoLinePair( 1, 0, 0, 2 );
GL_DrawColoredStereoLinePair( 1, 0, 0, 4 );
GL_DrawColoredStereoLinePair( 1, 0, 0, 6 );
GL_DrawColoredStereoLinePair( 0, 1, 0, 8 );
GL_DrawColoredStereoLinePair( 1, 1, 0, 10);
GL_DrawColoredStereoLinePair( 1, 1, 0, 12);
GL_DrawColoredStereoLinePair( 0, 1, 0, 14);
qglEnd();
GLimp_EndFrame();
}
}
*/
/*
====================
R_SetLightLevel
====================
*/
void R_SetLightLevel (void)
{
vec3_t shadelight;
if (r_newrefdef.rdflags & RDF_NOWORLDMODEL)
return;
// save off light value for server to look at (BIG HACK!)
R_LightPoint (r_newrefdef.vieworg, shadelight);
// pick the greatest component, which should be the same
// as the mono value returned by software
if (shadelight[0] > shadelight[1])
{
if (shadelight[0] > shadelight[2])
r_lightlevel->value = 150*shadelight[0];
else
r_lightlevel->value = 150*shadelight[2];
}
else
{
if (shadelight[1] > shadelight[2])
r_lightlevel->value = 150*shadelight[1];
else
r_lightlevel->value = 150*shadelight[2];
}
}
/*
@@@@@@@@@@@@@@@@@@@@@
R_RenderFrame
@@@@@@@@@@@@@@@@@@@@@
*/
void R_RenderFrame (refdef_t *fd)
{
R_RenderView( fd );
R_SetLightLevel ();
R_SetGL2D ();
}
void R_Register( void )
{
r_lefthand = ri.Cvar_Get( "hand", "0", CVAR_USERINFO | CVAR_ARCHIVE );
r_norefresh = ri.Cvar_Get ("r_norefresh", "0", 0);
r_fullbright = ri.Cvar_Get ("r_fullbright", "0", 0);
r_drawentities = ri.Cvar_Get ("r_drawentities", "1", 0);
r_drawworld = ri.Cvar_Get ("r_drawworld", "1", 0);
r_novis = ri.Cvar_Get ("r_novis", "0", 0);
r_nocull = ri.Cvar_Get ("r_nocull", "0", 0);
r_lerpmodels = ri.Cvar_Get ("r_lerpmodels", "1", 0);
r_speeds = ri.Cvar_Get ("r_speeds", "0", 0);
r_lightlevel = ri.Cvar_Get ("r_lightlevel", "0", 0);
gl_nosubimage = ri.Cvar_Get( "gl_nosubimage", "0", 0 );
gl_allow_software = ri.Cvar_Get( "gl_allow_software", "0", 0 );
gl_particle_min_size = ri.Cvar_Get( "gl_particle_min_size", "2", CVAR_ARCHIVE );
gl_particle_max_size = ri.Cvar_Get( "gl_particle_max_size", "40", CVAR_ARCHIVE );
gl_particle_size = ri.Cvar_Get( "gl_particle_size", "40", CVAR_ARCHIVE );
gl_particle_att_a = ri.Cvar_Get( "gl_particle_att_a", "0.01", CVAR_ARCHIVE );
gl_particle_att_b = ri.Cvar_Get( "gl_particle_att_b", "0.0", CVAR_ARCHIVE );
gl_particle_att_c = ri.Cvar_Get( "gl_particle_att_c", "0.01", CVAR_ARCHIVE );
gl_modulate = ri.Cvar_Get ("gl_modulate", "1", CVAR_ARCHIVE );
gl_log = ri.Cvar_Get( "gl_log", "0", 0 );
gl_bitdepth = ri.Cvar_Get( "gl_bitdepth", "0", 0 );
gl_mode = ri.Cvar_Get( "gl_mode", "3", CVAR_ARCHIVE );
gl_lightmap = ri.Cvar_Get ("gl_lightmap", "0", 0);
gl_shadows = ri.Cvar_Get ("gl_shadows", "0", CVAR_ARCHIVE );
gl_dynamic = ri.Cvar_Get ("gl_dynamic", "1", 0);
gl_nobind = ri.Cvar_Get ("gl_nobind", "0", 0);
gl_round_down = ri.Cvar_Get ("gl_round_down", "1", 0);
gl_picmip = ri.Cvar_Get ("gl_picmip", "0", 0);
gl_skymip = ri.Cvar_Get ("gl_skymip", "0", 0);
gl_showtris = ri.Cvar_Get ("gl_showtris", "0", 0);
gl_ztrick = ri.Cvar_Get ("gl_ztrick", "0", 0);
gl_finish = ri.Cvar_Get ("gl_finish", "0", CVAR_ARCHIVE);
gl_clear = ri.Cvar_Get ("gl_clear", "0", 0);
gl_cull = ri.Cvar_Get ("gl_cull", "1", 0);
gl_polyblend = ri.Cvar_Get ("gl_polyblend", "1", 0);
gl_flashblend = ri.Cvar_Get ("gl_flashblend", "0", 0);
gl_playermip = ri.Cvar_Get ("gl_playermip", "0", 0);
gl_monolightmap = ri.Cvar_Get( "gl_monolightmap", "0", 0 );
#ifdef _WIN32
gl_driver = ri.Cvar_Get( "gl_driver", "opengl32", CVAR_ARCHIVE );
#else
gl_driver = ri.Cvar_Get( "gl_driver", "libGL.so", CVAR_ARCHIVE );
#endif
gl_texturemode = ri.Cvar_Get( "gl_texturemode", "GL_LINEAR_MIPMAP_NEAREST", CVAR_ARCHIVE );
gl_texturealphamode = ri.Cvar_Get( "gl_texturealphamode", "default", CVAR_ARCHIVE );
gl_texturesolidmode = ri.Cvar_Get( "gl_texturesolidmode", "default", CVAR_ARCHIVE );
gl_lockpvs = ri.Cvar_Get( "gl_lockpvs", "0", 0 );
gl_vertex_arrays = ri.Cvar_Get( "gl_vertex_arrays", "0", CVAR_ARCHIVE );
gl_ext_swapinterval = ri.Cvar_Get( "gl_ext_swapinterval", "1", CVAR_ARCHIVE );
gl_ext_palettedtexture = ri.Cvar_Get( "gl_ext_palettedtexture", "1", CVAR_ARCHIVE );
gl_ext_multitexture = ri.Cvar_Get( "gl_ext_multitexture", "1", CVAR_ARCHIVE );
gl_ext_pointparameters = ri.Cvar_Get( "gl_ext_pointparameters", "1", CVAR_ARCHIVE );
gl_ext_compiled_vertex_array = ri.Cvar_Get( "gl_ext_compiled_vertex_array", "1", CVAR_ARCHIVE );
gl_drawbuffer = ri.Cvar_Get( "gl_drawbuffer", "GL_BACK", 0 );
gl_swapinterval = ri.Cvar_Get( "gl_swapinterval", "1", CVAR_ARCHIVE );
gl_saturatelighting = ri.Cvar_Get( "gl_saturatelighting", "0", 0 );
gl_3dlabs_broken = ri.Cvar_Get( "gl_3dlabs_broken", "1", CVAR_ARCHIVE );
vid_fullscreen = ri.Cvar_Get( "vid_fullscreen", "0", CVAR_ARCHIVE );
vid_gamma = ri.Cvar_Get( "vid_gamma", "1.0", CVAR_ARCHIVE );
vid_ref = ri.Cvar_Get( "vid_ref", "soft", CVAR_ARCHIVE );
ri.Cmd_AddCommand( "imagelist", GL_ImageList_f );
ri.Cmd_AddCommand( "screenshot", GL_ScreenShot_f );
ri.Cmd_AddCommand( "modellist", Mod_Modellist_f );
ri.Cmd_AddCommand( "gl_strings", GL_Strings_f );
}
/*
==================
R_SetMode
==================
*/
qboolean R_SetMode (void)
{
rserr_t err;
qboolean fullscreen;
#ifdef _WIN32
if ( vid_fullscreen->modified && !gl_config.allow_cds )
{
ri.Con_Printf( PRINT_ALL, "R_SetMode() - CDS not allowed with this driver\n" );
ri.Cvar_SetValue( "vid_fullscreen", !vid_fullscreen->value );
vid_fullscreen->modified = false;
}
#endif
fullscreen = vid_fullscreen->value;
vid_fullscreen->modified = false;
gl_mode->modified = false;
if ( ( err = GLimp_SetMode( &vid.width, &vid.height, gl_mode->value, fullscreen ) ) == rserr_ok )
{
gl_state.prev_mode = gl_mode->value;
}
else
{
if ( err == rserr_invalid_fullscreen )
{
ri.Cvar_SetValue( "vid_fullscreen", 0);
vid_fullscreen->modified = false;
ri.Con_Printf( PRINT_ALL, "ref_gl::R_SetMode() - fullscreen unavailable in this mode\n" );
if ( ( err = GLimp_SetMode( &vid.width, &vid.height, gl_mode->value, false ) ) == rserr_ok )
return true;
}
else if ( err == rserr_invalid_mode )
{
ri.Cvar_SetValue( "gl_mode", gl_state.prev_mode );
gl_mode->modified = false;
ri.Con_Printf( PRINT_ALL, "ref_gl::R_SetMode() - invalid mode\n" );
}
// try setting it back to something safe
if ( ( err = GLimp_SetMode( &vid.width, &vid.height, gl_state.prev_mode, false ) ) != rserr_ok )
{
ri.Con_Printf( PRINT_ALL, "ref_gl::R_SetMode() - could not revert to safe mode\n" );
return false;
}
}
return true;
}
/*
===============
R_Init
===============
*/
qboolean R_Init( void *hinstance, void *hWnd )
{
char renderer_buffer[1000];
char vendor_buffer[1000];
int err;
int j;
extern float r_turbsin[256];
for ( j = 0; j < 256; j++ )
{
r_turbsin[j] *= 0.5;
}
ri.Con_Printf (PRINT_ALL, "ref_gl version: "REF_VERSION"\n");
Draw_GetPalette ();
R_Register();
// initialize our QGL dynamic bindings
if ( !QGL_Init( gl_driver->string ) )
{
QGL_Shutdown();
ri.Con_Printf (PRINT_ALL, "ref_gl::R_Init() - could not load \"%s\"\n", gl_driver->string );
return -1;
}
// initialize OS-specific parts of OpenGL
if ( !GLimp_Init( hinstance, hWnd ) )
{
QGL_Shutdown();
return -1;
}
// set our "safe" modes
gl_state.prev_mode = 3;
// create the window and set up the context
if ( !R_SetMode () )
{
QGL_Shutdown();
ri.Con_Printf (PRINT_ALL, "ref_gl::R_Init() - could not R_SetMode()\n" );
return -1;
}
ri.Vid_MenuInit();
/*
** get our various GL strings
*/
gl_config.vendor_string = qglGetString (GL_VENDOR);
ri.Con_Printf (PRINT_ALL, "GL_VENDOR: %s\n", gl_config.vendor_string );
gl_config.renderer_string = qglGetString (GL_RENDERER);
ri.Con_Printf (PRINT_ALL, "GL_RENDERER: %s\n", gl_config.renderer_string );
gl_config.version_string = qglGetString (GL_VERSION);
ri.Con_Printf (PRINT_ALL, "GL_VERSION: %s\n", gl_config.version_string );
gl_config.extensions_string = qglGetString (GL_EXTENSIONS);
ri.Con_Printf (PRINT_ALL, "GL_EXTENSIONS: %s\n", gl_config.extensions_string );
strcpy( renderer_buffer, gl_config.renderer_string );
strlwr( renderer_buffer );
strcpy( vendor_buffer, gl_config.vendor_string );
strlwr( vendor_buffer );
if ( strstr( renderer_buffer, "voodoo" ) )
{
if ( !strstr( renderer_buffer, "rush" ) )
gl_config.renderer = GL_RENDERER_VOODOO;
else
gl_config.renderer = GL_RENDERER_VOODOO_RUSH;
}
else if ( strstr( vendor_buffer, "sgi" ) )
gl_config.renderer = GL_RENDERER_SGI;
else if ( strstr( renderer_buffer, "permedia" ) )
gl_config.renderer = GL_RENDERER_PERMEDIA2;
else if ( strstr( renderer_buffer, "glint" ) )
gl_config.renderer = GL_RENDERER_GLINT_MX;
else if ( strstr( renderer_buffer, "glzicd" ) )
gl_config.renderer = GL_RENDERER_REALIZM;
else if ( strstr( renderer_buffer, "gdi" ) )
gl_config.renderer = GL_RENDERER_MCD;
else if ( strstr( renderer_buffer, "pcx2" ) )
gl_config.renderer = GL_RENDERER_PCX2;
else if ( strstr( renderer_buffer, "verite" ) )
gl_config.renderer = GL_RENDERER_RENDITION;
else
gl_config.renderer = GL_RENDERER_OTHER;
if ( toupper( gl_monolightmap->string[1] ) != 'F' )
{
if ( gl_config.renderer == GL_RENDERER_PERMEDIA2 )
{
ri.Cvar_Set( "gl_monolightmap", "A" );
ri.Con_Printf( PRINT_ALL, "...using gl_monolightmap 'a'\n" );
}
else if ( gl_config.renderer & GL_RENDERER_POWERVR )
{
ri.Cvar_Set( "gl_monolightmap", "0" );
}
else
{
ri.Cvar_Set( "gl_monolightmap", "0" );
}
}
// power vr can't have anything stay in the framebuffer, so
// the screen needs to redraw the tiled background every frame
if ( gl_config.renderer & GL_RENDERER_POWERVR )
{
ri.Cvar_Set( "scr_drawall", "1" );
}
else
{
ri.Cvar_Set( "scr_drawall", "0" );
}
#ifdef __linux__
ri.Cvar_SetValue( "gl_finish", 1 );
#endif
// MCD has buffering issues
if ( gl_config.renderer == GL_RENDERER_MCD )
{
ri.Cvar_SetValue( "gl_finish", 1 );
}
if ( gl_config.renderer & GL_RENDERER_3DLABS )
{
if ( gl_3dlabs_broken->value )
gl_config.allow_cds = false;
else
gl_config.allow_cds = true;
}
else
{
gl_config.allow_cds = true;
}
#ifdef _WIN32
if ( gl_config.allow_cds )
ri.Con_Printf( PRINT_ALL, "...allowing CDS\n" );
else
ri.Con_Printf( PRINT_ALL, "...disabling CDS\n" );
#endif
/*
** grab extensions
*/
if ( strstr( gl_config.extensions_string, "GL_EXT_compiled_vertex_array" ) ||
strstr( gl_config.extensions_string, "GL_SGI_compiled_vertex_array" ) )
{
ri.Con_Printf( PRINT_ALL, "...enabling GL_EXT_compiled_vertex_array\n" );
qglLockArraysEXT = ( void * ) qwglGetProcAddress( "glLockArraysEXT" );
qglUnlockArraysEXT = ( void * ) qwglGetProcAddress( "glUnlockArraysEXT" );
}
else
{
ri.Con_Printf( PRINT_ALL, "...GL_EXT_compiled_vertex_array not found\n" );
}
#ifdef _WIN32
if ( strstr( gl_config.extensions_string, "WGL_EXT_swap_control" ) )
{
qwglSwapIntervalEXT = ( BOOL (WINAPI *)(int)) qwglGetProcAddress( "wglSwapIntervalEXT" );
ri.Con_Printf( PRINT_ALL, "...enabling WGL_EXT_swap_control\n" );
}
else
{
ri.Con_Printf( PRINT_ALL, "...WGL_EXT_swap_control not found\n" );
}
#endif
if ( strstr( gl_config.extensions_string, "GL_EXT_point_parameters" ) )
{
if ( gl_ext_pointparameters->value )
{
qglPointParameterfEXT = ( void (APIENTRY *)( GLenum, GLfloat ) ) qwglGetProcAddress( "glPointParameterfEXT" );
qglPointParameterfvEXT = ( void (APIENTRY *)( GLenum, const GLfloat * ) ) qwglGetProcAddress( "glPointParameterfvEXT" );
ri.Con_Printf( PRINT_ALL, "...using GL_EXT_point_parameters\n" );
}
else
{
ri.Con_Printf( PRINT_ALL, "...ignoring GL_EXT_point_parameters\n" );
}
}
else
{
ri.Con_Printf( PRINT_ALL, "...GL_EXT_point_parameters not found\n" );
}
#ifdef __linux__
if ( strstr( gl_config.extensions_string, "3DFX_set_global_palette" ))
{
if ( gl_ext_palettedtexture->value )
{
ri.Con_Printf( PRINT_ALL, "...using 3DFX_set_global_palette\n" );
qgl3DfxSetPaletteEXT = ( void ( APIENTRY * ) (GLuint *) )qwglGetProcAddress( "gl3DfxSetPaletteEXT" );
qglColorTableEXT = Fake_glColorTableEXT;
}
else
{
ri.Con_Printf( PRINT_ALL, "...ignoring 3DFX_set_global_palette\n" );
}
}
else
{
ri.Con_Printf( PRINT_ALL, "...3DFX_set_global_palette not found\n" );
}
#endif
if ( !qglColorTableEXT &&
strstr( gl_config.extensions_string, "GL_EXT_paletted_texture" ) &&
strstr( gl_config.extensions_string, "GL_EXT_shared_texture_palette" ) )
{
if ( gl_ext_palettedtexture->value )
{
ri.Con_Printf( PRINT_ALL, "...using GL_EXT_shared_texture_palette\n" );
qglColorTableEXT = qwglGetProcAddress( "glColorTableEXT" );
}
else
{
ri.Con_Printf( PRINT_ALL, "...ignoring GL_EXT_shared_texture_palette\n" );
}
}
else
{
ri.Con_Printf( PRINT_ALL, "...GL_EXT_shared_texture_palette not found\n" );
}
if ( strstr( gl_config.extensions_string, "GL_ARB_multitexture" ) )
{
if ( gl_ext_multitexture->value )
{
ri.Con_Printf( PRINT_ALL, "...using GL_ARB_multitexture\n" );
qglMTexCoord2fSGIS = ( void * ) qwglGetProcAddress( "glMultiTexCoord2fARB" );
qglActiveTextureARB = ( void * ) qwglGetProcAddress( "glActiveTextureARB" );
qglClientActiveTextureARB = ( void * ) qwglGetProcAddress( "glClientActiveTextureARB" );
GL_Texture0 = GL_TEXTURE0_ARB;
GL_Texture1 = GL_TEXTURE1_ARB;
}
else
{
ri.Con_Printf( PRINT_ALL, "...ignoring GL_ARB_multitexture\n" );
}
}
else
{
ri.Con_Printf( PRINT_ALL, "...GL_ARB_multitexture not found\n" );
}
if ( strstr( gl_config.extensions_string, "GL_SGIS_multitexture" ) )
{
if ( qglActiveTextureARB )
{
ri.Con_Printf( PRINT_ALL, "...GL_SGIS_multitexture deprecated in favor of ARB_multitexture\n" );
}
else if ( gl_ext_multitexture->value )
{
ri.Con_Printf( PRINT_ALL, "...using GL_SGIS_multitexture\n" );
qglMTexCoord2fSGIS = ( void * ) qwglGetProcAddress( "glMTexCoord2fSGIS" );
qglSelectTextureSGIS = ( void * ) qwglGetProcAddress( "glSelectTextureSGIS" );
GL_Texture0 = GL_TEXTURE0_SGIS;
GL_Texture1 = GL_TEXTURE1_SGIS;
}
else
{
ri.Con_Printf( PRINT_ALL, "...ignoring GL_SGIS_multitexture\n" );
}
}
else
{
ri.Con_Printf( PRINT_ALL, "...GL_SGIS_multitexture not found\n" );
}
GL_SetDefaultState();
/*
** draw our stereo patterns
*/
#if 0 // commented out until H3D pays us the money they owe us
GL_DrawStereoPattern();
#endif
GL_InitImages ();
Mod_Init ();
R_InitParticleTexture ();
Draw_InitLocal ();
err = qglGetError();
if ( err != GL_NO_ERROR )
ri.Con_Printf (PRINT_ALL, "glGetError() = 0x%x\n", err);
return 0;
}
/*
===============
R_Shutdown
===============
*/
void R_Shutdown (void)
{
ri.Cmd_RemoveCommand ("modellist");
ri.Cmd_RemoveCommand ("screenshot");
ri.Cmd_RemoveCommand ("imagelist");
ri.Cmd_RemoveCommand ("gl_strings");
Mod_FreeAll ();
GL_ShutdownImages ();
/*
** shut down OS specific OpenGL stuff like contexts, etc.
*/
GLimp_Shutdown();
/*
** shutdown our QGL subsystem
*/
QGL_Shutdown();
}
/*
@@@@@@@@@@@@@@@@@@@@@
R_BeginFrame
@@@@@@@@@@@@@@@@@@@@@
*/
void R_BeginFrame( float camera_separation )
{
gl_state.camera_separation = camera_separation;
/*
** change modes if necessary
*/
if ( gl_mode->modified || vid_fullscreen->modified )
{ // FIXME: only restart if CDS is required
cvar_t *ref;
ref = ri.Cvar_Get ("vid_ref", "gl", 0);
ref->modified = true;
}
if ( gl_log->modified )
{
GLimp_EnableLogging( gl_log->value );
gl_log->modified = false;
}
if ( gl_log->value )
{
GLimp_LogNewFrame();
}
/*
** update 3Dfx gamma -- it is expected that a user will do a vid_restart
** after tweaking this value
*/
if ( vid_gamma->modified )
{
vid_gamma->modified = false;
if ( gl_config.renderer & ( GL_RENDERER_VOODOO ) )
{
char envbuffer[1024];
float g;
g = 2.00 * ( 0.8 - ( vid_gamma->value - 0.5 ) ) + 1.0F;
Com_sprintf( envbuffer, sizeof(envbuffer), "SSTV2_GAMMA=%f", g );
putenv( envbuffer );
Com_sprintf( envbuffer, sizeof(envbuffer), "SST_GAMMA=%f", g );
putenv( envbuffer );
}
}
GLimp_BeginFrame( camera_separation );
/*
** go into 2D mode
*/
qglViewport (0,0, vid.width, vid.height);
qglMatrixMode(GL_PROJECTION);
qglLoadIdentity ();
qglOrtho (0, vid.width, vid.height, 0, -99999, 99999);
qglMatrixMode(GL_MODELVIEW);
qglLoadIdentity ();
qglDisable (GL_DEPTH_TEST);
qglDisable (GL_CULL_FACE);
qglDisable (GL_BLEND);
qglEnable (GL_ALPHA_TEST);
qglDisable (GL_TEXTURE_2D); // FIXME: WTF? Why do I need to toggle this?
qglEnable (GL_TEXTURE_2D);
qglColor4ubv (color_white);
/*
** draw buffer stuff
*/
if ( gl_drawbuffer->modified )
{
gl_drawbuffer->modified = false;
if ( gl_state.camera_separation == 0 || !gl_state.stereo_enabled )
{
if ( Q_stricmp( gl_drawbuffer->string, "GL_FRONT" ) == 0 )
qglDrawBuffer( GL_FRONT );
else
qglDrawBuffer( GL_BACK );
}
}
/*
** texturemode stuff
*/
if ( gl_texturemode->modified )
{
GL_TextureMode( gl_texturemode->string );
gl_texturemode->modified = false;
}
if ( gl_texturealphamode->modified )
{
GL_TextureAlphaMode( gl_texturealphamode->string );
gl_texturealphamode->modified = false;
}
if ( gl_texturesolidmode->modified )
{
GL_TextureSolidMode( gl_texturesolidmode->string );
gl_texturesolidmode->modified = false;
}
/*
** swapinterval stuff
*/
GL_UpdateSwapInterval();
//
// clear screen if desired
//
R_Clear ();
}
/*
=============
R_SetPalette
=============
*/
unsigned r_rawpalette[256];
void R_SetPalette ( const unsigned char *palette)
{
int i;
byte *rp = ( byte * ) r_rawpalette;
if ( palette )
{
for ( i = 0; i < 256; i++ )
{
rp[i*4+0] = palette[i*3+0];
rp[i*4+1] = palette[i*3+1];
rp[i*4+2] = palette[i*3+2];
rp[i*4+3] = 0xff;
}
}
else
{
for ( i = 0; i < 256; i++ )
{
rp[i*4+0] = d_8to24table[i] & 0xff;
rp[i*4+1] = ( d_8to24table[i] >> 8 ) & 0xff;
rp[i*4+2] = ( d_8to24table[i] >> 16 ) & 0xff;
rp[i*4+3] = 0xff;
}
}
GL_SetTexturePalette( r_rawpalette );
qglClearColor (0,0,0,0);
qglClear (GL_COLOR_BUFFER_BIT);
qglClearColor (1,0, 0.5 , 0.5);
}
/*
** R_DrawBeam
*/
void R_DrawBeam( entity_t *e )
{
#define NUM_BEAM_SEGS 6
int i;
float r, g, b;
vec3_t perpvec;
vec3_t direction, normalized_direction;
vec3_t start_points[NUM_BEAM_SEGS], end_points[NUM_BEAM_SEGS];
vec3_t oldorigin, origin;
oldorigin[0] = e->oldorigin[0];
oldorigin[1] = e->oldorigin[1];
oldorigin[2] = e->oldorigin[2];
origin[0] = e->origin[0];
origin[1] = e->origin[1];
origin[2] = e->origin[2];
normalized_direction[0] = direction[0] = oldorigin[0] - origin[0];
normalized_direction[1] = direction[1] = oldorigin[1] - origin[1];
normalized_direction[2] = direction[2] = oldorigin[2] - origin[2];
if ( VectorNormalize( normalized_direction ) == 0 )
return;
PerpendicularVector( perpvec, normalized_direction );
VectorScale( perpvec, e->frame / 2, perpvec );
for ( i = 0; i < 6; i++ )
{
RotatePointAroundVector( start_points[i], normalized_direction, perpvec, (360.0/NUM_BEAM_SEGS)*i );
VectorAdd( start_points[i], origin, start_points[i] );
VectorAdd( start_points[i], direction, end_points[i] );
}
qglDisable( GL_TEXTURE_2D );
qglEnable( GL_BLEND );
qglDepthMask( GL_FALSE );
r = ( d_8to24table[e->skinnum & 0xFF] ) & 0xFF;
g = ( d_8to24table[e->skinnum & 0xFF] >> 8 ) & 0xFF;
b = ( d_8to24table[e->skinnum & 0xFF] >> 16 ) & 0xFF;
r *= 1/255.0F;
g *= 1/255.0F;
b *= 1/255.0F;
qglColor4f( r, g, b, e->alpha );
qglBegin( GL_TRIANGLE_STRIP );
for ( i = 0; i < NUM_BEAM_SEGS; i++ )
{
qglVertex3fv( start_points[i] );
qglVertex3fv( end_points[i] );
qglVertex3fv( start_points[(i+1)%NUM_BEAM_SEGS] );
qglVertex3fv( end_points[(i+1)%NUM_BEAM_SEGS] );
}
qglEnd();
qglEnable( GL_TEXTURE_2D );
qglDisable( GL_BLEND );
qglDepthMask( GL_TRUE );
}
//===================================================================
void R_BeginRegistration (char *map);
struct model_s *R_RegisterModel (char *name);
struct image_s *R_RegisterSkin (char *name);
void R_SetSky (char *name, float rotate, vec3_t axis);
void R_EndRegistration (void);
void R_RenderFrame (refdef_t *fd);
struct image_s *Draw_FindPic (char *name);
void Draw_Pic (int x, int y, char *name);
void Draw_Char (int x, int y, int c);
void Draw_TileClear (int x, int y, int w, int h, char *name);
void Draw_Fill (int x, int y, int w, int h, int c);
void Draw_FadeScreen (void);
/*
@@@@@@@@@@@@@@@@@@@@@
GetRefAPI
@@@@@@@@@@@@@@@@@@@@@
*/
refexport_t GetRefAPI (refimport_t rimp )
{
refexport_t re;
ri = rimp;
re.api_version = API_VERSION;
re.BeginRegistration = R_BeginRegistration;
re.RegisterModel = R_RegisterModel;
re.RegisterSkin = R_RegisterSkin;
re.RegisterPic = Draw_FindPic;
re.SetSky = R_SetSky;
re.EndRegistration = R_EndRegistration;
re.RenderFrame = R_RenderFrame;
re.DrawGetPicSize = Draw_GetPicSize;
re.DrawPic = Draw_Pic;
re.DrawStretchPic = Draw_StretchPic;
re.DrawChar = Draw_Char;
re.DrawTileClear = Draw_TileClear;
re.DrawFill = Draw_Fill;
re.DrawFadeScreen= Draw_FadeScreen;
re.DrawStretchRaw = Draw_StretchRaw;
re.Init = R_Init;
re.Shutdown = R_Shutdown;
re.CinematicSetPalette = R_SetPalette;
re.BeginFrame = R_BeginFrame;
re.EndFrame = GLimp_EndFrame;
re.AppActivate = GLimp_AppActivate;
Swap_Init ();
return re;
}
#ifndef REF_HARD_LINKED
// this is only here so the functions in q_shared.c and q_shwin.c can link
void Sys_Error (char *error, ...)
{
va_list argptr;
char text[1024];
va_start (argptr, error);
vsprintf (text, error, argptr);
va_end (argptr);
ri.Sys_Error (ERR_FATAL, "%s", text);
}
void Com_Printf (char *fmt, ...)
{
va_list argptr;
char text[1024];
va_start (argptr, fmt);
vsprintf (text, fmt, argptr);
va_end (argptr);
ri.Con_Printf (PRINT_ALL, "%s", text);
}
#endif
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