video/ogl.c

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