arch/ogl/ogl.c

   1 /*
   2  * $Source: /cvs/cvsroot/d2x/arch/ogl/ogl.c,v $
   3  * $Revision: 1.2 $
   4  * $Author: bradleyb $
   5  * $Date: 2001-10-31 07:35:47 $
   6  *
   7  * Graphics support functions for OpenGL.
   8  *
   9  * $Log: not supported by cvs2svn $
  10  * Revision 1.1  2001/10/25 08:25:34  bradleyb
  11  * Finished moving stuff to arch/blah.  I know, it's ugly, but It'll be easier to sync with d1x.
  12  *
  13  * Revision 1.7  2001/10/12 00:18:40  bradleyb
  14  * Switched from Cygwin to mingw32 on MS boxes.  Vastly improved compilability.
  15  *
  16  * Revision 1.6  2001/10/09 03:00:08  bradleyb
  17  * opengl improvments (following d1x changes)
  18  *
  19  * Revision 1.5  2001/10/09 02:38:52  bradleyb
  20  * re-imported d1x version of this file
  21  *
  22  * Revision 1.4  2001/01/31 16:31:14  bradleyb
  23  * OpenGL support under Cygwin/SDL
  24  *
  25  * Revision 1.3  2001/01/29 13:47:52  bradleyb
  26  * Fixed build, some minor cleanups.
  27  *
  28  */
  29
  30 #ifdef HAVE_CONFIG_H
  31 #include <conf.h>
  32 #endif
  33
  34 //#include <stdio.h>
  35 #ifdef __WINDOWS__
  36 #include <windows.h>
  37 #include <stddef.h>
  38 #endif
  39 #include <GL/gl.h>
  40 #include <GL/glu.h>
  41 #include <string.h>
  42 #include <math.h>
  43
  44 #include "ogl_init.h"
  45 #include "3d.h"
  46 #include "piggy.h"
  47 #include "../../3d/globvars.h"
  48 #include "error.h"
  49 #include "texmap.h"
  50 #include "palette.h"
  51 #include "rle.h"
  52 #include "mono.h"
  53
  54 #include "segment.h"
  55 #include "textures.h"
  56 #include "texmerge.h"
  57 #include "effects.h"
  58 #include "weapon.h"
  59 #include "powerup.h"
  60 #include "polyobj.h"
  61 #include "gamefont.h"
  62
  63 //change to 1 for lots of spew.
  64 #if 0
  65 #define glmprintf(a) mprintf(a)
  66 #else
  67 #define glmprintf(a)
  68 #endif
  69
  70 #ifndef M_PI
  71 #define M_PI 3.14159
  72 #endif
  73
  74 #if defined(__WINDOWS__) || defined(__MINGW32__)
  75 #define cosf(a) cos(a)
  76 #define sinf(a) sin(a)
  77 #endif
  78
  79 unsigned char *ogl_pal=gr_palette;
  80
  81 int GL_texmagfilt=GL_NEAREST;
  82 int GL_texminfilt=GL_NEAREST;
  83 int GL_needmipmaps=0;
  84
  85 int last_width=-1,last_height=-1;
  86 int GL_TEXTURE_2D_enabled=-1;
  87 int GL_texclamp_enabled=-1;
  88
  89 extern int gr_renderstats;
  90 extern int gr_badtexture;
  91 int ogl_alttexmerge=1;//merge textures by just printing the seperate textures?
  92 int ogl_rgba_format=4;
  93 int ogl_intensity4_ok=1;
  94 int ogl_luminance4_alpha4_ok=1;
  95 int ogl_rgba2_ok=1;
  96 int ogl_readpixels_ok=1;
  97 int ogl_gettexlevelparam_ok=1;
  98 #ifdef GL_ARB_multitexture
  99 int ogl_arb_multitexture_ok=0;
 100 #endif
 101 #ifdef GL_SGIS_multitexture
 102 int ogl_sgis_multitexture_ok=0;
 103 #endif
 104
 105 int sphereh=0;
 106 int circleh5=0;
 107 int circleh10=0;
 108 int cross_lh[2]={0,0};
 109 int primary_lh[3]={0,0,0};
 110 int secondary_lh[5]={0,0,0,0,0};
 111 /*int lastbound=-1;
 112
 113 #define OGL_BINDTEXTURE(a) if(gr_badtexture>0) glBindTexture(GL_TEXTURE_2D, 0);\
 114         else if(a!=lastbound) {glBindTexture(GL_TEXTURE_2D, a);lastbound=a;}*/
 115 #define OGL_BINDTEXTURE(a) if(gr_badtexture>0) glBindTexture(GL_TEXTURE_2D, 0);\
 116         else glBindTexture(GL_TEXTURE_2D, a);
 117
 118
 119 ogl_texture ogl_texture_list[OGL_TEXTURE_LIST_SIZE];
 120 int ogl_texture_list_cur;
 121
 122 void ogl_init_texture_stats(ogl_texture* t){
 123         t->prio=0.3;//default prio
 124         t->lastrend=0;
 125         t->numrend=0;
 126 }
 127 void ogl_init_texture(ogl_texture* t){
 128         t->handle=0;
 129         t->internalformat=ogl_rgba_format;
 130         t->format=GL_RGBA;
 131         t->wrapstate=-1;
 132         t->w=t->h=0;
 133         ogl_init_texture_stats(t);
 134 }
 135 void ogl_reset_texture_stats_internal(void){
 136         int i;
 137         for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++)
 138                 if (ogl_texture_list[i].handle>0){
 139                         ogl_init_texture_stats(&ogl_texture_list[i]);
 140                 }
 141 }
 142 void ogl_init_texture_list_internal(void){
 143         int i;
 144         ogl_texture_list_cur=0;
 145         for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++)
 146                 ogl_init_texture(&ogl_texture_list[i]);
 147 }
 148 void ogl_smash_texture_list_internal(void){
 149         int i;
 150         sphereh=0;
 151         circleh5=0;
 152         circleh10=0;
 153         memset(cross_lh,0,sizeof(cross_lh));
 154         memset(primary_lh,0,sizeof(primary_lh));
 155         memset(secondary_lh,0,sizeof(secondary_lh));
 156         for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++){
 157                 if (ogl_texture_list[i].handle>0){
 158                         glDeleteTextures( 1, &ogl_texture_list[i].handle );
 159                         ogl_texture_list[i].handle=0;
 160                 }
 161                 ogl_texture_list[i].wrapstate=-1;
 162         }
 163 }
 164 void ogl_vivify_texture_list_internal(void){
 165 /*
 166    int i;
 167         ogl_texture* t;
 168         for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++){
 169                 t=&ogl_texture_list[i];
 170                 if (t->w>0){//erk, realised this can't be done since we'd need the texture bm_data too. hmmm.
 171                         ogl_loadbmtexture(t);
 172         }
 173 */
 174 }
 175
 176 ogl_texture* ogl_get_free_texture(void){
 177         int i;
 178         for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++){
 179                 if (ogl_texture_list[ogl_texture_list_cur].handle<=0 && ogl_texture_list[ogl_texture_list_cur].w==0)
 180                         return &ogl_texture_list[ogl_texture_list_cur];
 181                 if (++ogl_texture_list_cur>=OGL_TEXTURE_LIST_SIZE)
 182                         ogl_texture_list_cur=0;
 183         }
 184         Error("OGL: texture list full!\n");
 185 //      return NULL;
 186 }
 187 int ogl_texture_stats(void){
 188         int used=0,usedl4a4=0,usedrgba=0,databytes=0,truebytes=0,datatexel=0,truetexel=0,i;
 189         int prio0=0,prio1=0,prio2=0,prio3=0,prioh=0;
 190 //      int grabbed=0;
 191         ogl_texture* t;
 192         for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++){
 193                 t=&ogl_texture_list[i];
 194                 if (t->handle>0){
 195                         used++;
 196                         datatexel+=t->w*t->h;
 197                         truetexel+=t->tw*t->th;
 198                         databytes+=t->bytesu;
 199                         truebytes+=t->bytes;
 200                         if (t->prio<0.299)prio0++;
 201                         else if (t->prio<0.399)prio1++;
 202                         else if (t->prio<0.499)prio2++;
 203                         else if (t->prio<0.599)prio3++;
 204                         else prioh++;
 205                 }
 206 //              else if(t->w!=0)
 207 //                      grabbed++;
 208         }
 209         if (gr_renderstats){
 210                 gr_printf(5,GAME_FONT->ft_h*14+3*14,"%i(%i,%i) %iK(%iK wasted)",used,usedrgba,usedl4a4,truebytes/1024,(truebytes-databytes)/1024);
 211         }
 212 //      glmprintf((0,"ogl tex stats: %i(%i,%i|%i,%i,%i,%i,%i) %i(%i)b (%i(%i)wasted)\n",used,usedrgba,usedl4a4,prio0,prio1,prio2,prio3,prioh,truebytes,truetexel,truebytes-databytes,truetexel-datatexel));
 213         return truebytes;
 214 }
 215 int ogl_mem_target=-1;
 216 void ogl_clean_texture_cache(void){
 217         ogl_texture* t;
 218         int i,bytes;
 219         int time=120;
 220
 221         if (ogl_mem_target<0){
 222                 if (gr_renderstats)
 223                         ogl_texture_stats();
 224                 return;
 225         }
 226
 227         bytes=ogl_texture_stats();
 228         while (bytes>ogl_mem_target){
 229                 for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++){
 230                         t=&ogl_texture_list[i];
 231                         if (t->handle>0){
 232                                 if (t->lastrend+f1_0*time<GameTime){
 233                                         ogl_freetexture(t);
 234                                         bytes-=t->bytes;
 235                                         if (bytes<ogl_mem_target)
 236                                                 return;
 237                                 }
 238                         }
 239                 }
 240                 if (time==0)
 241                         Error("not enough mem?");
 242                 time=time/2;
 243         }
 244
 245 }
 246 void ogl_bindbmtex(grs_bitmap *bm){
 247         if (bm->gltexture==NULL || bm->gltexture->handle<=0)
 248                 ogl_loadbmtexture(bm);
 249         OGL_BINDTEXTURE(bm->gltexture->handle);
 250         bm->gltexture->lastrend=GameTime;
 251         bm->gltexture->numrend++;
 252 ////    if (bm->gltexture->numrend==80 || bm->gltexture->numrend==4000 || bm->gltexture->numrend==80000){
 253 //      if (bm->gltexture->numrend==100){
 254 //              bm->gltexture->prio+=0.1;
 255 ////            glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_PRIORITY,bm->gltexture->prio);
 256 //              glPrioritizeTextures(1,&bm->gltexture->handle,&bm->gltexture->prio);
 257 //      }
 258 }
 259 //gltexture MUST be bound first
 260 void ogl_texwrap(ogl_texture *gltexture,int state){
 261         if (gltexture->wrapstate!=state || gltexture->numrend<1){
 262                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, state);
 263                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, state);
 264                 gltexture->wrapstate=state;
 265         }
 266 }
 267
 268 //crude texture precaching
 269 //handles: powerups, walls, weapons, polymodels, etc.
 270 //it is done with the horrid do_special_effects kludge so that sides that have to be texmerged and have animated textures will be correctly cached.
 271 //similarly, with the objects(esp weapons), we could just go through and cache em all instead, but that would get ones that might not even be on the level
 272 //TODO: doors
 273
 274 void ogl_cache_polymodel_textures(int model_num){
 275         polymodel *po=&Polygon_models[model_num];
 276         int i;
 277         for (i=0;i<po->n_textures;i++)  {
 278 //              texture_list_index[i] = ObjBitmaps[ObjBitmapPtrs[po->first_texture+i]];
 279                 ogl_loadbmtexture(&GameBitmaps[ObjBitmaps[ObjBitmapPtrs[po->first_texture+i]].index]);
 280         }
 281 }
 282 void ogl_cache_vclip_textures(vclip *vc){
 283         int i;
 284         for (i=0;i<vc->num_frames;i++){
 285                 PIGGY_PAGE_IN(vc->frames[i]);
 286                 ogl_loadbmtexture(&GameBitmaps[vc->frames[i].index]);
 287         }
 288 }
 289 #define ogl_cache_vclipn_textures(i) ogl_cache_vclip_textures(&Vclip[i])
 290 void ogl_cache_weapon_textures(weapon_info *w){
 291         ogl_cache_vclipn_textures(w->flash_vclip);
 292         ogl_cache_vclipn_textures(w->robot_hit_vclip);
 293         ogl_cache_vclipn_textures(w->wall_hit_vclip);
 294         if (w->render_type==WEAPON_RENDER_VCLIP)
 295                 ogl_cache_vclipn_textures(w->weapon_vclip);
 296         else if (w->render_type==WEAPON_RENDER_POLYMODEL)
 297                 ogl_cache_polymodel_textures(w->model_num);
 298 }
 299 void ogl_cache_level_textures(void){
 300         int seg,side,i;
 301         eclip *ec;
 302         short tmap1,tmap2;
 303         grs_bitmap *bm,*bm2;
 304         struct side *sidep;
 305         int max_efx=0,ef;
 306
 307         ogl_reset_texture_stats_internal();//loading a new lev should reset textures
 308
 309         for (i=0,ec=Effects;i<Num_effects;i++,ec++) {
 310                 if ((Effects[i].changing_wall_texture == -1) && (Effects[i].changing_object_texture==-1) )
 311                         continue;
 312                 if (ec->vc.num_frames>max_efx)
 313                         max_efx=ec->vc.num_frames;
 314         }
 315         glmprintf((0,"max_efx:%i\n",max_efx));
 316         for (ef=0;ef<max_efx;ef++){
 317                 for (i=0,ec=Effects;i<Num_effects;i++,ec++) {
 318                         if ((Effects[i].changing_wall_texture == -1) && (Effects[i].changing_object_texture==-1) )
 319                                 continue;
 320 //                      if (ec->vc.num_frames>max_efx)
 321 //                              max_efx=ec->vc.num_frames;
 322                         ec->time_left=-1;
 323                 }
 324                 do_special_effects();
 325
 326                 for (seg=0;seg<Num_segments;seg++){
 327                         for (side=0;side<MAX_SIDES_PER_SEGMENT;side++){
 328                                 sidep=&Segments[seg].sides[side];
 329                                 tmap1=sidep->tmap_num;
 330                                 tmap2=sidep->tmap_num2;
 331                                 if (tmap1<0 || tmap1>=NumTextures){
 332                                         glmprintf((0,"ogl_cache_level_textures %i %i %i %i\n",seg,side,tmap1,NumTextures));
 333                                         //                              tmap1=0;
 334                                         continue;
 335                                 }
 336                                 PIGGY_PAGE_IN(Textures[tmap1]);
 337                                 bm = &GameBitmaps[Textures[tmap1].index];
 338                                 if (tmap2 != 0){
 339                                         PIGGY_PAGE_IN(Textures[tmap2&0x3FFF]);
 340                                         bm2 = &GameBitmaps[Textures[tmap2&0x3FFF].index];
 341                                         if (ogl_alttexmerge==0 || (bm2->bm_flags & BM_FLAG_SUPER_TRANSPARENT))
 342                                                 bm = texmerge_get_cached_bitmap( tmap1, tmap2 );
 343                                         else {
 344                                                 ogl_loadbmtexture(bm2);
 345                                         }
 346                                         //                              glmprintf((0,"ogl_cache_level_textures seg %i side %i t1 %i t2 %x bm %p NT %i\n",seg,side,tmap1,tmap2,bm,NumTextures));
 347                                 }
 348                                 ogl_loadbmtexture(bm);
 349                         }
 350                 }
 351                 glmprintf((0,"finished ef:%i\n",ef));
 352         }
 353         reset_special_effects();
 354         init_special_effects();
 355         {
 356 //              int laserlev=1;
 357                 //always have lasers and concs
 358                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[LASER_INDEX]]);
 359                 ogl_cache_weapon_textures(&Weapon_info[Secondary_weapon_to_weapon_info[CONCUSSION_INDEX]]);
 360                 for (i=0;i<Highest_object_index;i++){
 361                         if(Objects[i].render_type==RT_POWERUP){
 362                                 ogl_cache_vclipn_textures(Objects[i].rtype.vclip_info.vclip_num);
 363                                 switch (Objects[i].id){
 364 /*                                      case POW_LASER:
 365                                                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[LASER_INDEX]]);
 366 //                                              if (laserlev<4)
 367 //                                                      laserlev++;
 368                                                 break;*/
 369                                         case POW_VULCAN_WEAPON:
 370                                                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[VULCAN_INDEX]]);
 371                                                 break;
 372                                         case POW_SPREADFIRE_WEAPON:
 373                                                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[SPREADFIRE_INDEX]]);
 374                                                 break;
 375                                         case POW_PLASMA_WEAPON:
 376                                                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[PLASMA_INDEX]]);
 377                                                 break;
 378                                         case POW_FUSION_WEAPON:
 379                                                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[FUSION_INDEX]]);
 380                                                 break;
 381 /*                                      case POW_MISSILE_1:
 382                                         case POW_MISSILE_4:
 383                                                 ogl_cache_weapon_textures(&Weapon_info[Secondary_weapon_to_weapon_info[CONCUSSION_INDEX]]);
 384                                                 break;*/
 385                                         case POW_PROXIMITY_WEAPON:
 386                                                 ogl_cache_weapon_textures(&Weapon_info[Secondary_weapon_to_weapon_info[PROXIMITY_INDEX]]);
 387                                                 break;
 388                                         case POW_HOMING_AMMO_1:
 389                                         case POW_HOMING_AMMO_4:
 390                                                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[HOMING_INDEX]]);
 391                                                 break;
 392                                         case POW_SMARTBOMB_WEAPON:
 393                                                 ogl_cache_weapon_textures(&Weapon_info[Secondary_weapon_to_weapon_info[SMART_INDEX]]);
 394                                                 break;
 395                                         case POW_MEGA_WEAPON:
 396                                                 ogl_cache_weapon_textures(&Weapon_info[Secondary_weapon_to_weapon_info[MEGA_INDEX]]);
 397                                                 break;
 398                                 }
 399                         }
 400                         else if(Objects[i].render_type==RT_POLYOBJ){
 401                                 ogl_cache_polymodel_textures(Objects[i].rtype.pobj_info.model_num);
 402                         }
 403                 }
 404         }
 405         glmprintf((0,"finished caching\n"));
 406 }
 407
 408 int r_polyc,r_tpolyc,r_bitmapc,r_ubitmapc,r_ubitbltc,r_upixelc;
 409 int r_texcount=0;
 410 #define f2glf(x) (f2fl(x))
 411
 412 bool g3_draw_line(g3s_point *p0,g3s_point *p1)
 413 {
 414         int c;
 415         c=grd_curcanv->cv_color;
 416         OGL_DISABLE(TEXTURE_2D);
 417         glColor3f(PAL2Tr(c),PAL2Tg(c),PAL2Tb(c));
 418         glBegin(GL_LINES);
 419         glVertex3f(f2glf(p0->p3_vec.x),f2glf(p0->p3_vec.y),-f2glf(p0->p3_vec.z));
 420         glVertex3f(f2glf(p1->p3_vec.x),f2glf(p1->p3_vec.y),-f2glf(p1->p3_vec.z));
 421         glEnd();
 422         return 1;
 423 }
 424 void ogl_drawcircle2(int nsides,int type,float xsc,float xo,float ysc,float yo){
 425         int i;
 426         float ang;
 427         glBegin(type);
 428         for (i=0; i<nsides; i++) {
 429                 ang = 2.0*M_PI*i/nsides;
 430                 glVertex2f(cosf(ang)*xsc+xo,sinf(ang)*ysc+yo);
 431         }
 432         glEnd();
 433 }
 434 void ogl_drawcircle(int nsides,int type){
 435         int i;
 436         float ang;
 437         glBegin(type);
 438         for (i=0; i<nsides; i++) {
 439                 ang = 2.0*M_PI*i/nsides;
 440                 glVertex2f(cosf(ang),sinf(ang));
 441         }
 442         glEnd();
 443 }
 444 int circle_list_init(int nsides,int type,int mode) {
 445         int hand=glGenLists(1);
 446         glNewList(hand, mode);
 447         /* draw a unit radius circle in xy plane centered on origin */
 448         ogl_drawcircle(nsides,type);
 449         glEndList();
 450         return hand;
 451 }
 452 float bright_g[4]={     32.0/256,       252.0/256,      32.0/256};
 453 float dark_g[4]={       32.0/256,       148.0/256,      32.0/256};
 454 float darker_g[4]={     32.0/256,       128.0/256,      32.0/256};
 455 void ogl_draw_reticle(int cross,int primary,int secondary){
 456         float scale=(float)Canvas_height/(float)grd_curscreen->sc_h;
 457         glPushMatrix();
 458 //      glTranslatef(0.5,0.5,0);
 459         glTranslatef((grd_curcanv->cv_bitmap.bm_w/2+grd_curcanv->cv_bitmap.bm_x)/(float)last_width,1.0-(grd_curcanv->cv_bitmap.bm_h/2+grd_curcanv->cv_bitmap.bm_y)/(float)last_height,0);
 460         glScalef(scale/320.0,scale/200.0,scale);//the positions are based upon the standard reticle at 320x200 res.
 461
 462         OGL_DISABLE(TEXTURE_2D);
 463
 464         if (!cross_lh[cross]){
 465                 cross_lh[cross]=glGenLists(1);
 466                 glNewList(cross_lh[cross], GL_COMPILE_AND_EXECUTE);
 467                 glBegin(GL_LINES);
 468                 //cross top left
 469                 glColor3fv(darker_g);
 470                 glVertex2f(-4.0,4.0);
 471                 if (cross)
 472                         glColor3fv(bright_g);
 473                 else
 474                         glColor3fv(dark_g);
 475                 glVertex2f(-2.0,2.0);
 476
 477                 //cross bottom left
 478                 glColor3fv(dark_g);
 479                 glVertex2f(-3.0,-2.0);
 480                 if (cross)
 481                         glColor3fv(bright_g);
 482                 glVertex2f(-2.0,-1.0);
 483
 484                 //cross top right
 485                 glColor3fv(darker_g);
 486                 glVertex2f(4.0,4.0);
 487                 if (cross)
 488                         glColor3fv(bright_g);
 489                 else
 490                         glColor3fv(dark_g);
 491                 glVertex2f(2.0,2.0);
 492
 493                 //cross bottom right
 494                 glColor3fv(dark_g);
 495                 glVertex2f(3.0,-2.0);
 496                 if (cross)
 497                         glColor3fv(bright_g);
 498                 glVertex2f(2.0,-1.0);
 499
 500                 glEnd();
 501                 glEndList();
 502         }else
 503                 glCallList(cross_lh[cross]);
 504
 505 //      if (Canvas_height>200)
 506 //              glLineWidth(Canvas_height/(float)200);
 507         if (!primary_lh[primary]){
 508                 primary_lh[primary]=glGenLists(1);
 509                 glNewList(primary_lh[primary], GL_COMPILE_AND_EXECUTE);
 510
 511                 glColor3fv(dark_g);
 512                 glBegin(GL_LINES);
 513                 //left primary bar
 514                 glVertex2f(-14.0,-8.0);
 515                 glVertex2f(-8.0,-5.0);
 516                 //right primary bar
 517                 glVertex2f(14.0,-8.0);
 518                 glVertex2f(8.0,-5.0);
 519                 glEnd();
 520                 if (primary==0)
 521                         glColor3fv(dark_g);
 522                 else
 523                         glColor3fv(bright_g);
 524                 //left upper
 525                 ogl_drawcircle2(6,GL_POLYGON,1.5,-7.0,1.5,-5.0);
 526                 //right upper
 527                 ogl_drawcircle2(6,GL_POLYGON,1.5,7.0,1.5,-5.0);
 528                 if (primary!=2)
 529                         glColor3fv(dark_g);
 530                 else
 531                         glColor3fv(bright_g);
 532                 //left lower
 533                 ogl_drawcircle2(4,GL_POLYGON,1.0,-14.0,1.0,-8.0);
 534                 //right lower
 535                 ogl_drawcircle2(4,GL_POLYGON,1.0,14.0,1.0,-8.0);
 536
 537                 glEndList();
 538         }else
 539                 glCallList(primary_lh[primary]);
 540 //      if (Canvas_height>200)
 541 //              glLineWidth(1);
 542
 543         if (!secondary_lh[secondary]){
 544                 secondary_lh[secondary]=glGenLists(1);
 545                 glNewList(secondary_lh[secondary], GL_COMPILE_AND_EXECUTE);
 546                 if (secondary<=2){
 547                         //left secondary
 548                         if (secondary!=1)
 549                                 glColor3fv(darker_g);
 550                         else
 551                                 glColor3fv(bright_g);
 552                         ogl_drawcircle2(8,GL_LINE_LOOP,2.0,-10.0,2.0,-1.0);
 553                         //right secondary
 554                         if (secondary!=2)
 555                                 glColor3fv(darker_g);
 556                         else
 557                                 glColor3fv(bright_g);
 558                         ogl_drawcircle2(8,GL_LINE_LOOP,2.0,10.0,2.0,-1.0);
 559                 }else{
 560                         //bottom/middle secondary
 561                         if (secondary!=4)
 562                                 glColor3fv(darker_g);
 563                         else
 564                                 glColor3fv(bright_g);
 565                         ogl_drawcircle2(8,GL_LINE_LOOP,2.0,0.0,2.0,-7.0);
 566                 }
 567                 glEndList();
 568         }else
 569                 glCallList(secondary_lh[secondary]);
 570
 571         glPopMatrix();
 572 }
 573 int g3_draw_sphere(g3s_point *pnt,fix rad){
 574         int c;
 575         c=grd_curcanv->cv_color;
 576         OGL_DISABLE(TEXTURE_2D);
 577 //      glPointSize(f2glf(rad));
 578         glColor3f(CPAL2Tr(c),CPAL2Tg(c),CPAL2Tb(c));
 579 //      glBegin(GL_POINTS);
 580 //      glVertex3f(f2glf(pnt->p3_vec.x),f2glf(pnt->p3_vec.y),-f2glf(pnt->p3_vec.z));
 581 //      glEnd();
 582         glPushMatrix();
 583         glTranslatef(f2glf(pnt->p3_vec.x),f2glf(pnt->p3_vec.y),-f2glf(pnt->p3_vec.z));
 584         glScalef(f2glf(rad),f2glf(rad),f2glf(rad));
 585         if (!sphereh) sphereh=circle_list_init(20,GL_POLYGON,GL_COMPILE_AND_EXECUTE);
 586         else glCallList(sphereh);
 587         glPopMatrix();
 588         return 0;
 589
 590 }
 591 int gr_ucircle(fix xc1,fix yc1,fix r1){//dunno if this really works, radar doesn't seem to.. hm..
 592         int c;
 593         c=grd_curcanv->cv_color;
 594         OGL_DISABLE(TEXTURE_2D);
 595 //      glPointSize(f2glf(rad));
 596         glColor3f(CPAL2Tr(c),CPAL2Tg(c),CPAL2Tb(c));
 597 //      glBegin(GL_POINTS);
 598 //      glVertex3f(f2glf(pnt->p3_vec.x),f2glf(pnt->p3_vec.y),-f2glf(pnt->p3_vec.z));
 599 //      glEnd();
 600         glPushMatrix();
 601         glmprintf((0,"circle: %f(%i),%f(%i),%f\n",(f2fl(xc1)+grd_curcanv->cv_bitmap.bm_x)/(float)last_width,f2i(xc1),(f2fl(yc1)+grd_curcanv->cv_bitmap.bm_y)/(float)last_height,f2i(yc1),f2fl(r1)));
 602         glTranslatef(
 603                         (f2fl(xc1)+grd_curcanv->cv_bitmap.bm_x)/(float)last_width,
 604                         1.0-(f2fl(yc1)+grd_curcanv->cv_bitmap.bm_y)/(float)last_height,0);
 605         glScalef(f2fl(r1),f2fl(r1),f2fl(r1));
 606         if (r1<=i2f(5)){
 607                 if (!circleh5) circleh5=circle_list_init(5,GL_LINE_LOOP,GL_COMPILE_AND_EXECUTE);
 608                 else glCallList(circleh5);
 609         }else{
 610                 if (!circleh10) circleh10=circle_list_init(10,GL_LINE_LOOP,GL_COMPILE_AND_EXECUTE);
 611                 else glCallList(circleh10);
 612         }
 613         glPopMatrix();
 614         return 0;
 615 }
 616 int gr_circle(fix xc1,fix yc1,fix r1){
 617         return gr_ucircle(xc1,yc1,r1);
 618 }
 619
 620 bool g3_draw_poly(int nv,g3s_point **pointlist)
 621 {
 622         int c;
 623         r_polyc++;
 624         c=grd_curcanv->cv_color;
 625 //      glColor3f((gr_palette[c*3]+gr_palette_gamma)/63.0,(gr_palette[c*3+1]+gr_palette_gamma)/63.0,(gr_palette[c*3+2]+gr_palette_gamma)/63.0);
 626         OGL_DISABLE(TEXTURE_2D);
 627         glBegin(GL_TRIANGLE_FAN);
 628         glColor3f(PAL2Tr(c),PAL2Tg(c),PAL2Tb(c));
 629         for (c=0;c<nv;c++){
 630         //      glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),f2glf(pointlist[c]->p3_vec.z));
 631                 glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),-f2glf(pointlist[c]->p3_vec.z));
 632         }
 633         glEnd();
 634         return 0;
 635 }
 636
 637 void gr_upoly_tmap(int nverts, int *vert ){
 638                 mprintf((0,"gr_upoly_tmap: unhandled\n"));//should never get called
 639 }
 640 void draw_tmap_flat(grs_bitmap *bm,int nv,g3s_point **vertlist){
 641                 mprintf((0,"draw_tmap_flat: unhandled\n"));//should never get called
 642 }
 643 extern void (*tmap_drawer_ptr)(grs_bitmap *bm,int nv,g3s_point **vertlist);
 644 bool g3_draw_tmap(int nv,g3s_point **pointlist,g3s_uvl *uvl_list,grs_bitmap *bm)
 645 {
 646         int c;
 647         float l;
 648         if (tmap_drawer_ptr==draw_tmap_flat){
 649 /*              fix average_light=0;
 650                 int i;
 651                 for (i=0; i<nv; i++)
 652                         average_light += uvl_list[i].l;*/
 653                 OGL_DISABLE(TEXTURE_2D);
 654 //              glmprintf((0,"Gr_scanline_darkening_level=%i %f\n",Gr_scanline_darkening_level,Gr_scanline_darkening_level/(float)NUM_LIGHTING_LEVELS));
 655                 glColor4f(0,0,0,1.0-(Gr_scanline_darkening_level/(float)NUM_LIGHTING_LEVELS));
 656                 //glColor4f(0,0,0,f2fl(average_light/nv));
 657                 glBegin(GL_TRIANGLE_FAN);
 658                 for (c=0;c<nv;c++){
 659 //                      glColor4f(0,0,0,f2fl(uvl_list[c].l));
 660 //                      glTexCoord2f(f2glf(uvl_list[c].u),f2glf(uvl_list[c].v));
 661                         glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),-f2glf(pointlist[c]->p3_vec.z));
 662                 }
 663                 glEnd();
 664         }else if (tmap_drawer_ptr==draw_tmap){
 665                 r_tpolyc++;
 666                 /*      if (bm->bm_w !=64||bm->bm_h!=64)
 667                         printf("g3_draw_tmap w %i h %i\n",bm->bm_w,bm->bm_h);*/
 668                 OGL_ENABLE(TEXTURE_2D);
 669                 ogl_bindbmtex(bm);
 670                 ogl_texwrap(bm->gltexture,GL_REPEAT);
 671                 glBegin(GL_TRIANGLE_FAN);
 672                 for (c=0;c<nv;c++){
 673                         if (bm->bm_flags&BM_FLAG_NO_LIGHTING){
 674                                 l=1.0;
 675                         }else{
 676                                 //l=f2fl(uvl_list[c].l)+gr_palette_gamma/63.0;
 677                                 l=f2fl(uvl_list[c].l);
 678                         }
 679                         glColor3f(l,l,l);
 680                         glTexCoord2f(f2glf(uvl_list[c].u),f2glf(uvl_list[c].v));
 681                         //glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),f2glf(pointlist[c]->p3_vec.z));
 682                         glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),-f2glf(pointlist[c]->p3_vec.z));
 683                 }
 684                 glEnd();
 685         }else{
 686                 mprintf((0,"g3_draw_tmap: unhandled tmap_drawer %p\n",tmap_drawer_ptr));
 687         }
 688         return 0;
 689 }
 690 bool g3_draw_tmap_2(int nv,g3s_point **pointlist,g3s_uvl *uvl_list,grs_bitmap *bmbot,grs_bitmap *bm,int orient)
 691 {
 692 #if (defined(GL_ARB_multitexture) || defined(GL_SGIS_multitexture))
 693         if (ogl_arb_multitexture_ok || ogl_sgis_multitexture_ok){
 694                 int c;
 695                 float l,u1,v1;
 696
 697                 r_tpolyc+=2;
 698                 /*      if (bm->bm_w !=64||bm->bm_h!=64)
 699                         printf("g3_draw_tmap w %i h %i\n",bm->bm_w,bm->bm_h);*/
 700                 if (ogl_arb_multitexture_ok){
 701 #ifdef GL_ARB_multitexture
 702                         glActiveTextureARB(GL_TEXTURE0_ARB);
 703 #endif
 704                 }else if (ogl_sgis_multitexture_ok){
 705 #ifdef GL_SGIS_multitexture
 706                         glSelectTextureSGIS(GL_TEXTURE0_SGIS);
 707 #endif
 708                 }
 709                 ogl_bindbmtex(bmbot);
 710                 OGL_ENABLE(TEXTURE_2D);
 711                 glEnable(GL_TEXTURE_2D);
 712                 ogl_texwrap(bmbot->gltexture,GL_REPEAT);
 713                 glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 714                 glEnable(GL_BLEND);
 715                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 716
 717                 if (ogl_arb_multitexture_ok){
 718 #ifdef GL_ARB_multitexture
 719                         glActiveTextureARB(GL_TEXTURE1_ARB);
 720 #endif
 721                 }else if (ogl_sgis_multitexture_ok){
 722 #ifdef GL_SGIS_multitexture
 723                         glSelectTextureSGIS(GL_TEXTURE1_SGIS);
 724 #endif
 725                 }
 726                 ogl_bindbmtex(bm);
 727 //              OGL_ENABLE(TEXTURE_2D);
 728                 glEnable(GL_TEXTURE_2D);
 729                 ogl_texwrap(bm->gltexture,GL_REPEAT);
 730                 glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 731
 732                 glEnable(GL_BLEND);
 733                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 734
 735                 glBegin(GL_TRIANGLE_FAN);
 736                 for (c=0;c<nv;c++){
 737                         switch(orient){
 738                                 case 1:
 739                                         u1=1.0-f2glf(uvl_list[c].v);
 740                                         v1=f2glf(uvl_list[c].u);
 741                                         break;
 742                                 case 2:
 743                                         u1=1.0-f2glf(uvl_list[c].u);
 744                                         v1=1.0-f2glf(uvl_list[c].v);
 745                                         break;
 746                                 case 3:
 747                                         u1=f2glf(uvl_list[c].v);
 748                                         v1=1.0-f2glf(uvl_list[c].u);
 749                                         break;
 750                                 default:
 751                                         u1=f2glf(uvl_list[c].u);
 752                                         v1=f2glf(uvl_list[c].v);
 753                                         break;
 754                         }
 755                         if (bm->bm_flags&BM_FLAG_NO_LIGHTING){
 756                                 l=1.0;
 757                         }else{
 758                                 //l=f2fl(uvl_list[c].l)+gr_palette_gamma/63.0;
 759                                 l=f2fl(uvl_list[c].l);
 760                         }
 761                         glColor3f(l,l,l);
 762 //                      glTexCoord2f(f2glf(uvl_list[c].u),f2glf(uvl_list[c].v));
 763                         if (ogl_arb_multitexture_ok){
 764 #ifdef GL_ARB_multitexture
 765                                 glMultiTexCoord2fARB(GL_TEXTURE0_ARB,f2glf(uvl_list[c].u),f2glf(uvl_list[c].v));
 766 #endif
 767                         }else if (ogl_sgis_multitexture_ok){
 768 #ifdef GL_SGIS_multitexture
 769                                 glMultiTexCoord2fSGIS(GL_TEXTURE0_SGIS,f2glf(uvl_list[c].u),f2glf(uvl_list[c].v));
 770 #endif
 771                         }
 772                         if (ogl_arb_multitexture_ok){
 773 #ifdef GL_ARB_multitexture
 774                                 glMultiTexCoord2fARB(GL_TEXTURE1_ARB,u1,v1);
 775 #endif
 776                         }else if (ogl_sgis_multitexture_ok){
 777 #ifdef GL_SGIS_multitexture
 778                                 glMultiTexCoord2fSGIS(GL_TEXTURE1_SGIS,u1,v1);
 779 #endif
 780                         }
 781                         //glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),f2glf(pointlist[c]->p3_vec.z));
 782                         //glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),f2glf(pointlist[c]->p3_vec.z));
 783                         glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),-f2glf(pointlist[c]->p3_vec.z));
 784                 }
 785                 glEnd();
 786 /*              if (ogl_arb_multitexture_ok){
 787 #ifdef GL_ARB_multitexture
 788                         glActiveTextureARB(GL_TEXTURE1_ARB);
 789 #endif
 790                 }else if (ogl_sgis_multitexture_ok){
 791 #ifdef GL_SGIS_multitexture
 792                         glSelectTextureSGIS(GL_TEXTURE1_SGIS);
 793 #endif
 794                 }
 795 //              OGL_ENABLE(TEXTURE_2D);*/
 796                 glDisable(GL_TEXTURE_2D);
 797                 if (ogl_arb_multitexture_ok){
 798 #ifdef GL_ARB_multitexture
 799                         glActiveTextureARB(GL_TEXTURE0_ARB);
 800 #endif
 801                 }else if (ogl_sgis_multitexture_ok){
 802 #ifdef GL_SGIS_multitexture
 803                         glSelectTextureSGIS(GL_TEXTURE0_SGIS);
 804 #endif
 805                 }
 806         }else
 807 #endif
 808         {
 809                 int c;
 810                 float l,u1,v1;
 811
 812                 g3_draw_tmap(nv,pointlist,uvl_list,bmbot);//draw the bottom texture first.. could be optimized with multitexturing..
 813
 814                 r_tpolyc++;
 815                 /*      if (bm->bm_w !=64||bm->bm_h!=64)
 816                         printf("g3_draw_tmap w %i h %i\n",bm->bm_w,bm->bm_h);*/
 817                 OGL_ENABLE(TEXTURE_2D);
 818                 ogl_bindbmtex(bm);
 819                 ogl_texwrap(bm->gltexture,GL_REPEAT);
 820                 glBegin(GL_TRIANGLE_FAN);
 821                 for (c=0;c<nv;c++){
 822                         switch(orient){
 823                                 case 1:
 824                                         u1=1.0-f2glf(uvl_list[c].v);
 825                                         v1=f2glf(uvl_list[c].u);
 826                                         break;
 827                                 case 2:
 828                                         u1=1.0-f2glf(uvl_list[c].u);
 829                                         v1=1.0-f2glf(uvl_list[c].v);
 830                                         break;
 831                                 case 3:
 832                                         u1=f2glf(uvl_list[c].v);
 833                                         v1=1.0-f2glf(uvl_list[c].u);
 834                                         break;
 835                                 default:
 836                                         u1=f2glf(uvl_list[c].u);
 837                                         v1=f2glf(uvl_list[c].v);
 838                                         break;
 839                         }
 840                         if (bm->bm_flags&BM_FLAG_NO_LIGHTING){
 841                                 l=1.0;
 842                         }else{
 843                                 //l=f2fl(uvl_list[c].l)+gr_palette_gamma/63.0;
 844                                 l=f2fl(uvl_list[c].l);
 845                         }
 846                         glColor3f(l,l,l);
 847                         glTexCoord2f(u1,v1);
 848                         //glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),f2glf(pointlist[c]->p3_vec.z));
 849                         //glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),f2glf(pointlist[c]->p3_vec.z));
 850                         glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),-f2glf(pointlist[c]->p3_vec.z));
 851                 }
 852                 glEnd();
 853         }
 854         return 0;
 855 }
 856
 857 bool g3_draw_bitmap(vms_vector *pos,fix width,fix height,grs_bitmap *bm, int orientation)
 858 {
 859         //float l=1.0;
 860         vms_vector pv,v1;//,v2;
 861         int i;
 862         r_bitmapc++;
 863         v1.z=0;
 864 //      printf("g3_draw_bitmap: %f,%f,%f - ",f2glf(pos->x),f2glf(pos->y),-f2glf(pos->z));
 865 //      printf("(%f,%f,%f) ",f2glf(View_position.x),f2glf(View_position.y),-f2glf(View_position.z));
 866
 867         OGL_ENABLE(TEXTURE_2D);
 868         ogl_bindbmtex(bm);
 869         ogl_texwrap(bm->gltexture,GL_CLAMP);
 870
 871         glBegin(GL_QUADS);
 872         glColor3f(1.0,1.0,1.0);
 873     width = fixmul(width,Matrix_scale.x);
 874     height = fixmul(height,Matrix_scale.y);
 875         for (i=0;i<4;i++){
 876 //              g3_rotate_point(&p[i],pos);
 877                 vm_vec_sub(&v1,pos,&View_position);
 878                 vm_vec_rotate(&pv,&v1,&View_matrix);
 879 //              printf(" %f,%f,%f->",f2glf(pv.x),f2glf(pv.y),-f2glf(pv.z));
 880                 switch (i){
 881                         case 0:
 882                                 glTexCoord2f(0.0, 0.0);
 883                                 pv.x+=-width;
 884                                 pv.y+=height;
 885                                 break;
 886                         case 1:
 887                                 glTexCoord2f(bm->gltexture->u, 0.0);
 888                                 pv.x+=width;
 889                                 pv.y+=height;
 890                                 break;
 891                         case 2:
 892                                 glTexCoord2f(bm->gltexture->u, bm->gltexture->v);
 893                                 pv.x+=width;
 894                                 pv.y+=-height;
 895                                 break;
 896                         case 3:
 897                                 glTexCoord2f(0.0, bm->gltexture->v);
 898                                 pv.x+=-width;
 899                                 pv.y+=-height;
 900                                 break;
 901                 }
 902 //              vm_vec_rotate(&v2,&v1,&View_matrix);
 903 //              vm_vec_sub(&v1,&v2,&pv);
 904                 //vm_vec_sub(&v1,&pv,&v2);
 905 //              vm_vec_sub(&v2,&pv,&v1);
 906                 glVertex3f(f2glf(pv.x),f2glf(pv.y),-f2glf(pv.z));
 907 //              printf("%f,%f,%f ",f2glf(v1.x),f2glf(v1.y),-f2glf(v1.z));
 908         }
 909         glEnd();
 910 //      printf("\n");
 911
 912         return 0;
 913 }
 914 bool ogl_ubitmapm_c(int x, int y,grs_bitmap *bm,int c)
 915 {
 916         GLfloat xo,yo,xf,yf;
 917         GLfloat u1,u2,v1,v2;
 918         r_ubitmapc++;
 919         x+=grd_curcanv->cv_bitmap.bm_x;
 920         y+=grd_curcanv->cv_bitmap.bm_y;
 921         xo=x/(float)last_width;
 922         xf=(bm->bm_w+x)/(float)last_width;
 923         yo=1.0-y/(float)last_height;
 924         yf=1.0-(bm->bm_h+y)/(float)last_height;
 925
 926 //      printf("g3_draw_bitmap: %f,%f,%f - ",f2glf(pos->x),f2glf(pos->y),-f2glf(pos->z));
 927 //      printf("(%f,%f,%f) ",f2glf(View_position.x),f2glf(View_position.y),-f2glf(View_position.z));
 928
 929 /*              glEnABLE(ALPHA_TEST);
 930         glAlphaFunc(GL_GREATER,0.0);*/
 931
 932         OGL_ENABLE(TEXTURE_2D);
 933         ogl_bindbmtex(bm);
 934         ogl_texwrap(bm->gltexture,GL_CLAMP);
 935
 936         if (bm->bm_x==0){
 937                 u1=0;
 938                 if (bm->bm_w==bm->gltexture->w)
 939                         u2=bm->gltexture->u;
 940                 else
 941                         u2=(bm->bm_w+bm->bm_x)/(float)bm->gltexture->tw;
 942         }else {
 943                 u1=bm->bm_x/(float)bm->gltexture->tw;
 944                 u2=(bm->bm_w+bm->bm_x)/(float)bm->gltexture->tw;
 945         }
 946         if (bm->bm_y==0){
 947                 v1=0;
 948                 if (bm->bm_h==bm->gltexture->h)
 949                         v2=bm->gltexture->v;
 950                 else
 951                         v2=(bm->bm_h+bm->bm_y)/(float)bm->gltexture->th;
 952         }else{
 953                 v1=bm->bm_y/(float)bm->gltexture->th;
 954                 v2=(bm->bm_h+bm->bm_y)/(float)bm->gltexture->th;
 955         }
 956
 957         glBegin(GL_QUADS);
 958         if (c<0)
 959                 glColor3f(1.0,1.0,1.0);
 960         else
 961                 glColor3f(CPAL2Tr(c),CPAL2Tg(c),CPAL2Tb(c));
 962         glTexCoord2f(u1, v1); glVertex2f(xo, yo);
 963         glTexCoord2f(u2, v1); glVertex2f(xf, yo);
 964         glTexCoord2f(u2, v2); glVertex2f(xf, yf);
 965         glTexCoord2f(u1, v2); glVertex2f(xo, yf);
 966         glEnd();
 967 //      glDisABLE(ALPHA_TEST);
 968
 969         return 0;
 970 }
 971 bool ogl_ubitmapm(int x, int y,grs_bitmap *bm){
 972         return ogl_ubitmapm_c(x,y,bm,-1);
 973 //      return ogl_ubitblt(bm->bm_w,bm->bm_h,x,y,0,0,bm,NULL);
 974 }
 975 #if 0
 976 //also upsidedown, currently.
 977 bool ogl_ubitblt(int w,int h,int dx,int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
 978 {
 979         GLfloat xo,yo;//,xs,ys;
 980         glmprintf((0,"ogl_ubitblt(w=%i,h=%i,dx=%i,dy=%i,sx=%i,sy=%i,src=%p,dest=%p\n",w,h, dx, dy,sx, sy,  src,dest));
 981
 982         dx+=dest->bm_x;
 983         dy+=dest->bm_y;
 984
 985         xo=dx/(float)last_width;
 986 //      xo=dx/(float)grd_curscreen->sc_w;
 987 //      xs=w/(float)last_width;
 988         //yo=1.0-dy/(float)last_height;
 989         yo=1.0-(dy+h)/(float)last_height;
 990 //      ys=h/(float)last_height;
 991
 992 //      OGL_ENABLE(TEXTURE_2D);
 993
 994         OGL_DISABLE(TEXTURE_2D);
 995         glRasterPos2f(xo,yo);
 996         ogl_filltexbuf(src->bm_data,texbuf,src->bm_w,w,h,sx,sy,w,h,GL_RGBA);
 997         glDrawPixels(w,h,GL_RGBA,GL_UNSIGNED_BYTE,texbuf);
 998         glRasterPos2f(0,0);
 999
1000         return 0;
1001 }
1002 #else
1003 bool ogl_ubitblt_i(int dw,int dh,int dx,int dy, int sw, int sh, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
1004 {
1005         GLfloat xo,yo,xs,ys;
1006         GLfloat u1,v1;//,u2,v2;
1007         ogl_texture tex;
1008 //      unsigned char *oldpal;
1009         r_ubitbltc++;
1010
1011         ogl_init_texture(&tex);
1012         tex.w=sw;tex.h=sh;
1013         tex.prio=0.0;tex.wantmip=0;
1014         tex.lw=src->bm_rowsize;
1015
1016 /*      if (w==src->bm_w && sx==0){
1017                 u1=0;u2=src->glu;
1018         }else{
1019                 u1=sx/(float)src->bm_w*src->glu;
1020                 u2=w/(float)src->bm_w*src->glu+u1;
1021         }
1022         if (h==src->bm_h && sy==0){
1023                 v1=0;v2=src->glv;
1024         }else{
1025                 v1=sy/(float)src->bm_h*src->glv;
1026                 v2=h/(float)src->bm_h*src->glv+v1;
1027         }*/
1028         u1=v1=0;
1029
1030         dx+=dest->bm_x;
1031         dy+=dest->bm_y;
1032         xo=dx/(float)last_width;
1033         xs=dw/(float)last_width;
1034         yo=1.0-dy/(float)last_height;
1035         ys=dh/(float)last_height;
1036
1037         OGL_ENABLE(TEXTURE_2D);
1038
1039 //      oldpal=ogl_pal;
1040         ogl_pal=gr_current_pal;
1041         ogl_loadtexture(src->bm_data,sx,sy,&tex);
1042 //      ogl_pal=oldpal;
1043         ogl_pal=gr_palette;
1044         OGL_BINDTEXTURE(tex.handle);
1045
1046         ogl_texwrap(&tex,GL_CLAMP);
1047
1048         glBegin(GL_QUADS);
1049         glColor3f(1.0,1.0,1.0);
1050         glTexCoord2f(u1, v1); glVertex2f(xo, yo);
1051         glTexCoord2f(tex.u, v1); glVertex2f(xo+xs, yo);
1052         glTexCoord2f(tex.u, tex.v); glVertex2f(xo+xs, yo-ys);
1053         glTexCoord2f(u1, tex.v); glVertex2f(xo, yo-ys);
1054         glEnd();
1055         ogl_freetexture(&tex);
1056         return 0;
1057 }
1058 bool ogl_ubitblt(int w,int h,int dx,int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest){
1059         return ogl_ubitblt_i(w,h,dx,dy,w,h,sx,sy,src,dest);
1060 }
1061 #endif
1062 bool ogl_ubitblt_tolinear(int w,int h,int dx,int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest){
1063 #if 1
1064         unsigned char *d,*s;
1065         int i,j;
1066         int w1,h1;
1067 //      w1=w;h1=h;
1068         w1=grd_curscreen->sc_w;h1=grd_curscreen->sc_h;
1069         if (w1*h1*3>OGLTEXBUFSIZE)
1070                 Error("ogl_ubitblt_tolinear: screen res larger than OGLTEXBUFSIZE\n");
1071
1072         if (ogl_readpixels_ok>0){
1073                 OGL_DISABLE(TEXTURE_2D);
1074                 glReadBuffer(GL_FRONT);
1075                 glReadPixels(0,0,w1,h1,GL_RGB,GL_UNSIGNED_BYTE,texbuf);
1076 //              glReadPixels(sx,grd_curscreen->sc_h-(sy+h),w,h,GL_RGB,GL_UNSIGNED_BYTE,texbuf);
1077 //              glReadPixels(sx,sy,w+sx,h+sy,GL_RGB,GL_UNSIGNED_BYTE,texbuf);
1078         }else
1079                 memset(texbuf,0,w1*h1*3);
1080         sx+=src->bm_x;
1081         sy+=src->bm_y;
1082         for (i=0;i<h;i++){
1083                 d=dest->bm_data+dx+(dy+i)*dest->bm_rowsize;
1084                 s=texbuf+((h1-(i+sy+1))*w1+sx)*3;
1085                 for (j=0;j<w;j++){
1086                         *d=gr_find_closest_color(s[0]/4,s[1]/4,s[2]/4);
1087                         s+=3;
1088                         d++;
1089                 }
1090         }
1091 #else
1092         int i,j,c=0;
1093         unsigned char *d,*s,*e;
1094         if (w*h*3>OGLTEXBUFSIZE)
1095                 Error("ogl_ubitblt_tolinear: size larger than OGLTEXBUFSIZE\n");
1096         sx+=src->bm_x;
1097         sy+=src->bm_y;
1098 #if 1//also seems to cause a mess.  need to look into it a bit more..
1099         if (ogl_readpixels_ok>0){
1100                 OGL_DISABLE(TEXTURE_2D);
1101                 glReadBuffer(GL_FRONT);
1102 //              glReadPixels(0,0,w,h,GL_RGB,GL_UNSIGNED_BYTE,texbuf);
1103                 glReadPixels(sx,grd_curscreen->sc_h-(sy+h),w,h,GL_RGB,GL_UNSIGNED_BYTE,texbuf);
1104         }else
1105 #endif
1106                 memset(texbuf,0,w*h*3);
1107 //      d=dest->bm_data+dx+(dy+i)*dest->bm_rowsize;
1108         d=dest->bm_data+dx+dy*dest->bm_rowsize;
1109         for (i=0;i<h;i++){
1110                 s=texbuf+w*(h-(i+1))*3;
1111 //              s=texbuf+w*i*3;
1112                 if (s<texbuf){Error("blah1\n");}
1113                 if (d<dest->bm_data){Error("blah3\n");}
1114 //              d=dest->bm_data+(i*dest->bm_rowsize);
1115
1116                 e=d;
1117                 for (j=0;j<w;j++){
1118                         if (s>texbuf+w*h*3-3){Error("blah2\n");}
1119                         if (d>dest->bm_data+dest->bm_rowsize*(h+dy)+dx  ){Error("blah4\n");}
1120                         *d=gr_find_closest_color(s[0]/4,s[1]/4,s[2]/4);
1121                         s+=3;
1122                         d++;
1123                         c++;
1124                 }
1125                 d=e;
1126                 d+=dest->bm_rowsize;
1127         }
1128         glmprintf((0,"c=%i w*h=%i\n",c,w*h));
1129 #endif
1130         return 0;
1131 }
1132
1133 bool ogl_ubitblt_copy(int w,int h,int dx,int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest){
1134 #if 0 //just seems to cause a mess.
1135         GLfloat xo,yo;//,xs,ys;
1136
1137         dx+=dest->bm_x;
1138         dy+=dest->bm_y;
1139
1140 //      xo=dx/(float)last_width;
1141         xo=dx/(float)grd_curscreen->sc_w;
1142 //      yo=1.0-(dy+h)/(float)last_height;
1143         yo=1.0-(dy+h)/(float)grd_curscreen->sc_h;
1144         sx+=src->bm_x;
1145         sy+=src->bm_y;
1146         OGL_DISABLE(TEXTURE_2D);
1147         glReadBuffer(GL_FRONT);
1148         glRasterPos2f(xo,yo);
1149 //      glReadPixels(0,0,w,h,GL_RGB,GL_UNSIGNED_BYTE,texbuf);
1150         glCopyPixels(sx,grd_curscreen->sc_h-(sy+h),w,h,GL_COLOR);
1151         glRasterPos2f(0,0);
1152 #endif
1153         return 0;
1154 }
1155
1156 void ogl_start_frame(void){
1157         r_polyc=0;r_tpolyc=0;r_bitmapc=0;r_ubitmapc=0;r_ubitbltc=0;r_upixelc=0;
1158 //      gl_badtexture=500;
1159
1160         OGL_VIEWPORT(grd_curcanv->cv_bitmap.bm_x,grd_curcanv->cv_bitmap.bm_y,Canvas_width,Canvas_height);
1161         glClearColor(0.0, 0.0, 0.0, 0.0);
1162 //      glEnable(GL_ALPHA_TEST);
1163 //      glAlphaFunc(GL_GREATER,0.01);
1164         glShadeModel(GL_SMOOTH);
1165         glMatrixMode(GL_PROJECTION);
1166         glLoadIdentity();//clear matrix
1167         //gluPerspective(90.0,(GLfloat)(grd_curscreen->sc_w*3)/(GLfloat)(grd_curscreen->sc_h*4),1.0,1000000.0);
1168         //gluPerspective(90.0,(GLfloat)(grd_curscreen->sc_w*3)/(GLfloat)(grd_curscreen->sc_h*4),0.01,1000000.0);
1169         gluPerspective(90.0,1.0,0.01,1000000.0);
1170         //gluPerspective(90.0,(GLfloat)(Canvas_width*3)/(GLfloat)(Canvas_height*4),0.01,1000000.0);
1171 //      gluPerspective(75.0,(GLfloat)Canvas_width/(GLfloat)Canvas_height,1.0,1000000.0);
1172         glMatrixMode(GL_MODELVIEW);
1173         glLoadIdentity();//clear matrix
1174         glEnable(GL_BLEND);
1175         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1176 //      glDisABLE(DITHER);
1177 //      glScalef(1.0,1.0,-1.0);
1178 //      glScalef(1.0,1.0,-1.0);
1179 //      glPushMatrix();
1180
1181 //      glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
1182 //      OGL_TEXENV(GL_TEXTURE_ENV_MODE,GL_MODULATE);
1183 //      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_texmagfilt);
1184 //      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_texminfilt);
1185 //      OGL_TEXPARAM(GL_TEXTURE_MAG_FILTER,GL_texmagfilt);
1186 //      OGL_TEXPARAM(GL_TEXTURE_MIN_FILTER,GL_texminfilt);
1187 //      glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
1188 //      glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
1189 }
1190 #ifndef NMONO
1191 void merge_textures_stats(void);
1192 #endif
1193 void ogl_end_frame(void){
1194 //      OGL_VIEWPORT(grd_curcanv->cv_bitmap.bm_x,grd_curcanv->cv_bitmap.bm_y,);
1195         OGL_VIEWPORT(0,0,grd_curscreen->sc_w,grd_curscreen->sc_h);
1196 #ifndef NMONO
1197 //      merge_textures_stats();
1198 //      ogl_texture_stats();
1199 #endif
1200 //      glViewport(0,0,grd_curscreen->sc_w,grd_curscreen->sc_h);
1201         glMatrixMode(GL_PROJECTION);
1202         glLoadIdentity();//clear matrix
1203         glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
1204         glMatrixMode(GL_MODELVIEW);
1205         glLoadIdentity();//clear matrix
1206 //      glDisABLE(BLEND);
1207         //glDisABLE(ALPHA_TEST);
1208         //gluPerspective(90.0,(GLfloat)(grd_curscreen->sc_w*3)/(GLfloat)(grd_curscreen->sc_h*4),1.0,1000000.0);
1209 //      ogl_swap_buffers();//platform specific code
1210 //      glClear(GL_COLOR_BUFFER_BIT);
1211
1212 }
1213 void ogl_swap_buffers(void){
1214         ogl_clean_texture_cache();
1215         if (gr_renderstats){
1216                 gr_printf(5,GAME_FONT->ft_h*13+3*13,"%i flat %i tex %i sprites %i bitmaps",r_polyc,r_tpolyc,r_bitmapc,r_ubitmapc);
1217 //      glmprintf((0,"ogl_end_frame: %i polys, %i tmaps, %i sprites, %i bitmaps, %i bitblts, %i pixels\n",r_polyc,r_tpolyc,r_bitmapc,r_ubitmapc,r_ubitbltc,r_upixelc));//we need to do it here because some things get drawn after end_frame
1218         }
1219         ogl_do_palfx();
1220         ogl_swap_buffers_internal();
1221         glClear(GL_COLOR_BUFFER_BIT);
1222 }
1223
1224 int tex_format_supported(int iformat,int format){
1225         switch (iformat){
1226                 case GL_INTENSITY4:
1227                         if (!ogl_intensity4_ok) return 0; break;
1228                 case GL_LUMINANCE4_ALPHA4:
1229                         if (!ogl_luminance4_alpha4_ok) return 0; break;
1230                 case GL_RGBA2:
1231                         if (!ogl_rgba2_ok) return 0; break;
1232         }
1233         if (ogl_gettexlevelparam_ok){
1234                 int internalFormat;
1235                 glTexImage2D(GL_PROXY_TEXTURE_2D, 0, iformat, 64, 64, 0,
1236                                 format, GL_UNSIGNED_BYTE, texbuf);//NULL?
1237                 glGetTexLevelParameteriv(GL_PROXY_TEXTURE_2D, 0,
1238                                 GL_TEXTURE_INTERNAL_FORMAT,
1239                                 &internalFormat);
1240                 return (internalFormat==iformat);
1241         }else
1242                 return 1;
1243 }
1244
1245 //little hack to find the largest or equal multiple of 2 for a given number
1246 int pow2ize(int x){
1247         int i;
1248         for (i=2;i<=4096;i*=2)
1249                 if (x<=i) return i;
1250         return i;
1251 }
1252
1253 //GLubyte texbuf[512*512*4];
1254 GLubyte texbuf[OGLTEXBUFSIZE];
1255 void ogl_filltexbuf(unsigned char *data,GLubyte *texp,int truewidth,int width,int height,int dxo,int dyo,int twidth,int theight,int type)
1256 {
1257 //      GLushort *tex=(GLushort *)texp;
1258         int x,y,c,i;
1259         if (twidth*theight*4>sizeof(texbuf))//shouldn't happen, descent never uses textures that big.
1260                 Error("texture toobig %i %i",twidth,theight);
1261
1262         i=0;
1263         for (y=0;y<theight;y++){
1264                 i=dxo+truewidth*(y+dyo);
1265                 for (x=0;x<twidth;x++){
1266                         if (x<width && y<height)
1267                                 c=data[i++];
1268                         else
1269                                 c=255;//fill the pad space with transparancy
1270                         if (c==255){
1271                                 switch (type){
1272                                         case GL_LUMINANCE:
1273                                                 (*(texp++))=0;
1274                                                 break;
1275                                         case GL_LUMINANCE_ALPHA:
1276                                                 (*(texp++))=0;
1277                                                 (*(texp++))=0;
1278                                                 break;
1279                                         case GL_RGBA:
1280                                                 (*(texp++))=0;
1281                                                 (*(texp++))=0;
1282                                                 (*(texp++))=0;
1283                                                 (*(texp++))=0;//transparent pixel
1284                                                 break;
1285                                 }
1286 //                              (*(tex++))=0;
1287                         }else{
1288                                 switch (type){
1289                                         case GL_LUMINANCE://these could prolly be done to make the intensity based upon the intensity of the resulting color, but its not needed for anything (yet?) so no point. :)
1290                                                 (*(texp++))=255;
1291                                                 break;
1292                                         case GL_LUMINANCE_ALPHA:
1293                                                 (*(texp++))=255;
1294                                                 (*(texp++))=255;
1295                                                 break;
1296                                         case GL_RGBA:
1297                                                 //(*(texp++))=gr_palette[c*3]*4;
1298                                                 //(*(texp++))=gr_palette[c*3+1]*4;
1299                                                 //(*(texp++))=gr_palette[c*3+2]*4;
1300                                                 (*(texp++))=ogl_pal[c*3]*4;
1301                                                 (*(texp++))=ogl_pal[c*3+1]*4;
1302                                                 (*(texp++))=ogl_pal[c*3+2]*4;
1303                                                 (*(texp++))=255;//not transparent
1304                                                 //                              (*(tex++))=(ogl_pal[c*3]>>1) + ((ogl_pal[c*3+1]>>1)<<5) + ((ogl_pal[c*3+2]>>1)<<10) + (1<<15);
1305                                                 break;
1306                                 }
1307                         }
1308                 }
1309         }
1310 }
1311 int tex_format_verify(ogl_texture *tex){
1312         while (!tex_format_supported(tex->internalformat,tex->format)){
1313                 glmprintf((0,"tex format %x not supported",tex->internalformat));
1314                 switch (tex->internalformat){
1315                         case GL_INTENSITY4:
1316                                 if (ogl_luminance4_alpha4_ok){
1317                                         tex->internalformat=GL_LUMINANCE4_ALPHA4;
1318                                         tex->format=GL_LUMINANCE_ALPHA;
1319                                         break;
1320                                 }//note how it will fall through here if the statement is false
1321                         case GL_LUMINANCE4_ALPHA4:
1322                                 if (ogl_rgba2_ok){
1323                                         tex->internalformat=GL_RGBA2;
1324                                         tex->format=GL_RGBA;
1325                                         break;
1326                                 }//note how it will fall through here if the statement is false
1327                         case GL_RGBA2:
1328                                 tex->internalformat=ogl_rgba_format;
1329                                 tex->format=GL_RGBA;
1330                                 break;
1331                         default:
1332                                 mprintf((0,"...no tex format to fall back on\n"));
1333                                 return 1;
1334                 }
1335                 glmprintf((0,"...falling back to %x\n",tex->internalformat));
1336         }
1337         return 0;
1338 }
1339 void tex_set_size1(ogl_texture *tex,int dbits,int bits,int w, int h){
1340         int u;
1341         if (tex->tw!=w || tex->th!=h){
1342                 u=(tex->w/(float)tex->tw*w) * (tex->h/(float)tex->th*h);
1343                 glmprintf((0,"shrunken texture?\n"));
1344         }else
1345                 u=tex->w*tex->h;
1346         if (bits<=0){//the beta nvidia GLX server. doesn't ever return any bit sizes, so just use some assumptions.
1347                 tex->bytes=((float)w*h*dbits)/8.0;
1348                 tex->bytesu=((float)u*dbits)/8.0;
1349         }else{
1350                 tex->bytes=((float)w*h*bits)/8.0;
1351                 tex->bytesu=((float)u*bits)/8.0;
1352         }
1353         glmprintf((0,"tex_set_size1: %ix%i, %ib(%i) %iB\n",w,h,bits,dbits,tex->bytes));
1354 }
1355 void tex_set_size(ogl_texture *tex){
1356         int w,h,bi=16,a=0;
1357         if (ogl_gettexlevelparam_ok){
1358                 int t;
1359                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_WIDTH,&w);
1360                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_HEIGHT,&h);
1361                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_LUMINANCE_SIZE,&t);a+=t;
1362                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_INTENSITY_SIZE,&t);a+=t;
1363                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_RED_SIZE,&t);a+=t;
1364                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_GREEN_SIZE,&t);a+=t;
1365                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_BLUE_SIZE,&t);a+=t;
1366                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_ALPHA_SIZE,&t);a+=t;
1367         }else{
1368                 w=tex->tw;
1369                 h=tex->th;
1370         }
1371         switch (tex->format){
1372                 case GL_LUMINANCE:
1373                         bi=8;
1374                         break;
1375                 case GL_LUMINANCE_ALPHA:
1376                         bi=8;
1377                         break;
1378                 case GL_RGBA:
1379                         bi=16;
1380                         break;
1381                 default:
1382                         Error("tex_set_size unknown texformat\n");
1383                         break;
1384         }
1385         tex_set_size1(tex,bi,a,w,h);
1386 }
1387 //loads a palettized bitmap into a ogl RGBA texture.
1388 //Sizes and pads dimensions to multiples of 2 if necessary.
1389 //In theory this could be a problem for repeating textures, but all real
1390 //textures (not sprites, etc) in descent are 64x64, so we are ok.
1391 //stores OpenGL textured id in *texid and u/v values required to get only the real data in *u/*v
1392 void ogl_loadtexture(unsigned char * data, int dxo,int dyo, ogl_texture *tex){
1393 //void ogl_loadtexture(unsigned char * data, int width, int height,int dxo,int dyo, int *texid,float *u,float *v,char domipmap,float prio){
1394 //      int internalformat=GL_RGBA;
1395 //      int format=GL_RGBA;
1396         //int filltype=0;
1397         tex->tw=pow2ize(tex->w);tex->th=pow2ize(tex->h);//calculate smallest texture size that can accomodate us (must be multiples of 2)
1398 //      tex->tw=tex->w;tex->th=tex->h;//feeling lucky?
1399
1400         if(gr_badtexture>0) return;
1401
1402         if (tex_format_verify(tex))
1403                 return;
1404
1405         //calculate u/v values that would make the resulting texture correctly sized
1406         tex->u=(float)tex->w/(float)tex->tw;
1407         tex->v=(float)tex->h/(float)tex->th;
1408
1409         //      if (width!=twidth || height!=theight)
1410         //              glmprintf((0,"sizing %ix%i texture up to %ix%i\n",width,height,twidth,theight));
1411         ogl_filltexbuf(data,texbuf,tex->lw,tex->w,tex->h,dxo,dyo,tex->tw,tex->th,tex->format);
1412
1413         // Generate OpenGL texture IDs.
1414         glGenTextures(1, &tex->handle);
1415
1416         //set priority
1417         glPrioritizeTextures(1,&tex->handle,&tex->prio);
1418
1419         // Give our data to OpenGL.
1420
1421         OGL_BINDTEXTURE(tex->handle);
1422
1423         glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
1424         if (tex->wantmip){
1425                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_texmagfilt);
1426                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_texminfilt);
1427         }else{
1428                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
1429                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
1430         }
1431 //      domipmap=0;//mipmaps aren't used in GL_NEAREST anyway, and making the mipmaps is pretty slow
1432         //however, if texturing mode becomes an ingame option, they would need to be made regardless, so it could switch to them later.  OTOH, texturing mode could just be made a command line arg.
1433
1434         if (tex->wantmip && GL_needmipmaps)
1435                 gluBuild2DMipmaps( GL_TEXTURE_2D, tex->internalformat, tex->tw,
1436                                 tex->th, tex->format, GL_UNSIGNED_BYTE, texbuf);
1437         else
1438                 glTexImage2D(GL_TEXTURE_2D, 0, tex->internalformat,
1439                         tex->tw, tex->th, 0, tex->format, // RGBA textures.
1440                         GL_UNSIGNED_BYTE, // imageData is a GLubyte pointer.
1441                         texbuf);
1442
1443         tex_set_size(tex);
1444
1445         r_texcount++;
1446         glmprintf((0,"ogl_loadtexture(%p,%i,%i,%ix%i,%p):%i u=%f v=%f b=%i bu=%i (%i)\n",data,tex->tw,tex->th,dxo,dyo,tex,tex->handle,tex->u,tex->v,tex->bytes,tex->bytesu,r_texcount));
1447
1448 }
1449 unsigned char decodebuf[512*512];
1450 void ogl_loadbmtexture_m(grs_bitmap *bm,int domipmap){
1451         unsigned char *buf;
1452         while (bm->bm_parent)
1453                 bm=bm->bm_parent;
1454         buf=bm->bm_data;
1455         if (bm->gltexture==NULL){
1456                 ogl_init_texture(bm->gltexture=ogl_get_free_texture());
1457                 bm->gltexture->lw=bm->bm_w;
1458                 bm->gltexture->w=bm->bm_w;
1459                 bm->gltexture->h=bm->bm_h;
1460                 bm->gltexture->wantmip=domipmap;
1461         }
1462         else {
1463                 if (bm->gltexture->handle>0)
1464                         return;
1465                 if (bm->gltexture->w==0){
1466                         bm->gltexture->lw=bm->bm_w;
1467                         bm->gltexture->w=bm->bm_w;
1468                         bm->gltexture->h=bm->bm_h;
1469                 }
1470         }
1471         if (bm->bm_flags & BM_FLAG_RLE){
1472                 unsigned char * dbits;
1473                 unsigned char * sbits;
1474                 int i;
1475                 sbits = &bm->bm_data[4 + bm->bm_h];
1476                 dbits = decodebuf;
1477
1478                 for (i=0; i < bm->bm_h; i++ )    {
1479                         gr_rle_decode(sbits,dbits);
1480                         sbits += (int)bm->bm_data[4+i];
1481                         dbits += bm->bm_w;
1482                 }
1483                 buf=decodebuf;
1484         }
1485         ogl_loadtexture(buf,0,0,bm->gltexture);
1486 }
1487 void ogl_loadbmtexture(grs_bitmap *bm){
1488         ogl_loadbmtexture_m(bm,1);
1489 }
1490 void ogl_freetexture(ogl_texture *gltexture){
1491         if (gltexture->handle>0){
1492                 r_texcount--;
1493                 glmprintf((0,"ogl_freetexture(%p):%i (last rend %is) (%i left)\n",gltexture,gltexture->handle,(GameTime-gltexture->lastrend)/f1_0,r_texcount));
1494                 glDeleteTextures( 1, &gltexture->handle );
1495 //              gltexture->handle=0;
1496                 ogl_init_texture(gltexture);
1497         }
1498 }
1499 void ogl_freebmtexture(grs_bitmap *bm){
1500         if (bm->gltexture){
1501                 ogl_freetexture(bm->gltexture);
1502                 bm->gltexture=NULL;
1503 //              r_texcount--;
1504 //              glmprintf((0,"ogl_freebmtexture(%p,%p):%i (%i left)\n",bm->bm_data,&bm->gltexture,bm->gltexture,r_texcount));
1505 //              glDeleteTextures( 1, &bm->gltexture );
1506 //              bm->gltexture=-1;
1507         }
1508 }