gldraw.cpp

Go to the documentation of this file.

/*
===========================================================================

Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company. 

This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).  

Doom 3 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 3 of the License, or
(at your option) any later version.

Doom 3 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 Doom 3 Source Code.  If not, see <http://www.gnu.org/licenses/>.

In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code.  If not, please request a copy in writing from id Software at the address below.

If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.

===========================================================================
*/

#include "../../../idlib/precompiled.h"
#pragma hdrstop

#include "dmap.h"

#ifdef WIN32
#include <windows.h>
#include <GL/gl.h>
#include <GL/glu.h>
//#include <GL/glaux.h>

#define WIN_SIZE        1024

void Draw_ClearWindow( void ) {

        if ( !dmapGlobals.drawflag ) {
                return;
        }

        glDrawBuffer( GL_FRONT );

        RB_SetGL2D();

        glClearColor( 0.5, 0.5, 0.5, 0 );
        glClear( GL_COLOR_BUFFER_BIT );

#if 0
        int             w, h, g;
        float   mx, my;

        w = (dmapGlobals.drawBounds.b[1][0] - dmapGlobals.drawBounds.b[0][0]);
        h = (dmapGlobals.drawBounds.b[1][1] - dmapGlobals.drawBounds.b[0][1]);

        mx = dmapGlobals.drawBounds.b[0][0] + w/2;
        my = dmapGlobals.drawBounds.b[1][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);
#else
        glMatrixMode( GL_PROJECTION );
        glLoadIdentity ();
        glOrtho( dmapGlobals.drawBounds[0][0], dmapGlobals.drawBounds[1][0], 
                dmapGlobals.drawBounds[0][1], dmapGlobals.drawBounds[1][1],
                -1, 1 );
        glMatrixMode( GL_MODELVIEW );
        glLoadIdentity();
#endif
        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_LINE_LOOP );
        glBegin( GL_QUADS );

        glVertex2f( dmapGlobals.drawBounds.b[0][0] + 20, dmapGlobals.drawBounds.b[0][1] + 20 );
        glVertex2f( dmapGlobals.drawBounds.b[1][0] - 20, dmapGlobals.drawBounds.b[0][1] + 20 );
        glVertex2f( dmapGlobals.drawBounds.b[1][0] - 20, dmapGlobals.drawBounds.b[1][1] - 20 );
        glVertex2f( dmapGlobals.drawBounds.b[0][0] + 20, dmapGlobals.drawBounds.b[1][1] - 20 );

        glEnd ();
#endif

        glFlush ();

}

void Draw_SetRed (void)
{
        if (!dmapGlobals.drawflag)
                return;

        glColor3f (1,0,0);
}

void Draw_SetGrey (void)
{
        if (!dmapGlobals.drawflag)
                return;

        glColor3f( 0.5f, 0.5f, 0.5f);
}

void Draw_SetBlack (void)
{
        if (!dmapGlobals.drawflag)
                return;

        glColor3f( 0.0f, 0.0f, 0.0f );
}

void DrawWinding ( const idWinding *w )
{
        int             i;

        if (!dmapGlobals.drawflag)
                return;

        glColor3f( 0.3f, 0.0f, 0.0f );
        glBegin (GL_POLYGON);
        for ( i = 0; i < w->GetNumPoints(); i++ )
                glVertex3f( (*w)[i][0], (*w)[i][1], (*w)[i][2] );
        glEnd ();

        glColor3f( 1, 0, 0 );
        glBegin (GL_LINE_LOOP);
        for ( i = 0; i < w->GetNumPoints(); i++ )
                glVertex3f( (*w)[i][0], (*w)[i][1], (*w)[i][2] );
        glEnd ();

        glFlush ();
}

void DrawAuxWinding ( const idWinding *w)
{
        int             i;

        if (!dmapGlobals.drawflag)
                return;

        glColor3f( 0.0f, 0.3f, 0.0f );
        glBegin (GL_POLYGON);
        for ( i = 0; i < w->GetNumPoints(); i++ )
                glVertex3f( (*w)[i][0], (*w)[i][1], (*w)[i][2] );
        glEnd ();

        glColor3f( 0.0f, 1.0f, 0.0f );
        glBegin (GL_LINE_LOOP);
        for ( i = 0; i < w->GetNumPoints(); i++ )
                glVertex3f( (*w)[i][0], (*w)[i][1], (*w)[i][2] );
        glEnd ();

        glFlush ();
}

void DrawLine( idVec3 v1, idVec3 v2, int color ) {
        if (!dmapGlobals.drawflag)
                return;

        switch( color ) {
        case 0: glColor3f( 0, 0, 0 ); break;
        case 1: glColor3f( 0, 0, 1 ); break;
        case 2: glColor3f( 0, 1, 0 ); break;
        case 3: glColor3f( 0, 1, 1 ); break;
        case 4: glColor3f( 1, 0, 0 ); break;
        case 5: glColor3f( 1, 0, 1 ); break;
        case 6: glColor3f( 1, 1, 0 ); break;
        case 7: glColor3f( 1, 1, 1 ); break;
        }
        

        glBegin( GL_LINES );

        glVertex3fv( v1.ToFloatPtr() );
        glVertex3fv( v2.ToFloatPtr() );

        glEnd();
        glFlush();
}

//============================================================

#define GLSERV_PORT     25001

bool    wins_init;
int                     draw_socket;

void GLS_BeginScene (void)
{
        WSADATA winsockdata;
        WORD    wVersionRequested; 
        struct sockaddr_in      address;
        int             r;

        if (!wins_init)
        {
                wins_init = true;

                wVersionRequested = MAKEWORD(1, 1); 

                r = WSAStartup (MAKEWORD(1, 1), &winsockdata);

                if (r)
                        common->Error( "Winsock initialization failed.");

        }

        // connect a socket to the server

        draw_socket = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP);
        if (draw_socket == -1)
                common->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( const idWinding *w, int code )
{
        byte    buf[1024];
        int             i, j;

        if (!draw_socket)
                return;

        ((int *)buf)[0] = w->GetNumPoints();
        ((int *)buf)[1] = code;
        for ( i = 0; i < w->GetNumPoints(); i++ )
                for (j=0 ; j<3 ; j++)
                        ((float *)buf)[2+i*3+j] = (*w)[i][j];

        send (draw_socket, (const char *)buf, w->GetNumPoints() * 12 + 8, 0);
}

void GLS_Triangle( const mapTri_t *tri, int code ) {
        idWinding w;

        w.SetNumPoints( 3 );
        VectorCopy( tri->v[0].xyz, w[0] );
        VectorCopy( tri->v[1].xyz, w[1] );
        VectorCopy( tri->v[2].xyz, w[2] );
        GLS_Winding( &w, code );
}

void GLS_EndScene (void)
{
        closesocket (draw_socket);
        draw_socket = 0;
}
#else
void Draw_ClearWindow( void ) {
}

void DrawWinding( const idWinding *w) {
}

void DrawAuxWinding ( const idWinding *w) {
}

void GLS_Winding( const idWinding *w, int code ) {
}

void GLS_BeginScene (void) {
}

void GLS_EndScene (void)
{
}

#endif