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The Quake III Arena sources as originally released under the GPL license on August 20, 2005.

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Travis Bradshaw 2012-01-31 13:41:34 -06:00
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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code 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.
Quake III Arena source code 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 Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include <windows.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glaux.h>
#include "qbsp.h"
// can't use the glvertex3fv functions, because the vec3_t fields
// could be either floats or doubles, depending on DOUBLEVEC_T
qboolean drawflag;
vec3_t draw_mins, draw_maxs;
#define WIN_SIZE 512
void InitWindow (void)
{
auxInitDisplayMode (AUX_SINGLE | AUX_RGB);
auxInitPosition (0, 0, WIN_SIZE, WIN_SIZE);
auxInitWindow ("qcsg");
}
void Draw_ClearWindow (void)
{
static int init;
int w, h, g;
vec_t mx, my;
if (!drawflag)
return;
if (!init)
{
init = qtrue;
InitWindow ();
}
glClearColor (1,0.8,0.8,0);
glClear (GL_COLOR_BUFFER_BIT);
w = (draw_maxs[0] - draw_mins[0]);
h = (draw_maxs[1] - draw_mins[1]);
mx = draw_mins[0] + w/2;
my = draw_mins[1] + h/2;
g = w > h ? w : h;
glLoadIdentity ();
gluPerspective (90, 1, 2, 16384);
gluLookAt (mx, my, draw_maxs[2] + g/2, mx , my, draw_maxs[2], 0, 1, 0);
glColor3f (0,0,0);
// glPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
glDisable (GL_DEPTH_TEST);
glEnable (GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
#if 0
glColor4f (1,0,0,0.5);
glBegin (GL_POLYGON);
glVertex3f (0, 500, 0);
glVertex3f (0, 900, 0);
glVertex3f (0, 900, 100);
glVertex3f (0, 500, 100);
glEnd ();
#endif
glFlush ();
}
void Draw_SetRed (void)
{
if (!drawflag)
return;
glColor3f (1,0,0);
}
void Draw_SetGrey (void)
{
if (!drawflag)
return;
glColor3f (0.5,0.5,0.5);
}
void Draw_SetBlack (void)
{
if (!drawflag)
return;
glColor3f (0,0,0);
}
void DrawWinding (winding_t *w)
{
int i;
if (!drawflag)
return;
glColor4f (0,0,0,0.5);
glBegin (GL_LINE_LOOP);
for (i=0 ; i<w->numpoints ; i++)
glVertex3f (w->p[i][0],w->p[i][1],w->p[i][2] );
glEnd ();
glColor4f (0,1,0,0.3);
glBegin (GL_POLYGON);
for (i=0 ; i<w->numpoints ; i++)
glVertex3f (w->p[i][0],w->p[i][1],w->p[i][2] );
glEnd ();
glFlush ();
}
void DrawAuxWinding (winding_t *w)
{
int i;
if (!drawflag)
return;
glColor4f (0,0,0,0.5);
glBegin (GL_LINE_LOOP);
for (i=0 ; i<w->numpoints ; i++)
glVertex3f (w->p[i][0],w->p[i][1],w->p[i][2] );
glEnd ();
glColor4f (1,0,0,0.3);
glBegin (GL_POLYGON);
for (i=0 ; i<w->numpoints ; i++)
glVertex3f (w->p[i][0],w->p[i][1],w->p[i][2] );
glEnd ();
glFlush ();
}
//============================================================
#define GLSERV_PORT 25001
qboolean wins_init;
int draw_socket;
void GLS_BeginScene (void)
{
WSADATA winsockdata;
WORD wVersionRequested;
struct sockaddr_in address;
int r;
if (!wins_init)
{
wins_init = qtrue;
wVersionRequested = MAKEWORD(1, 1);
r = WSAStartup (MAKEWORD(1, 1), &winsockdata);
if (r)
Error ("Winsock initialization failed.");
}
// connect a socket to the server
draw_socket = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (draw_socket == -1)
Error ("draw_socket failed");
address.sin_family = AF_INET;
address.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
address.sin_port = GLSERV_PORT;
r = connect (draw_socket, (struct sockaddr *)&address, sizeof(address));
if (r == -1)
{
closesocket (draw_socket);
draw_socket = 0;
}
}
void GLS_Winding (winding_t *w, int code)
{
byte buf[1024];
int i, j;
if (!draw_socket)
return;
((int *)buf)[0] = w->numpoints;
((int *)buf)[1] = code;
for (i=0 ; i<w->numpoints ; i++)
for (j=0 ; j<3 ; j++)
((float *)buf)[2+i*3+j] = w->p[i][j];
send (draw_socket, buf, w->numpoints*12+8, 0);
}
void GLS_EndScene (void)
{
closesocket (draw_socket);
draw_socket = 0;
}