arch/ogl/ogl.c

   1 /* $Id: ogl.c,v 1.12 2004-05-11 01:53:34 btb Exp $ */
   2 /*
   3  *
   4  * Graphics support functions for OpenGL.
   5  *
   6  *
   7  */
   8
   9 #ifdef HAVE_CONFIG_H
  10 #include <conf.h>
  11 #endif
  12
  13 //#include <stdio.h>
  14 #ifdef _WIN32
  15 #include <windows.h>
  16 #include <stddef.h>
  17 #endif
  18 #if defined(__APPLE__) && defined(__MACH__)
  19 #include <OpenGL/gl.h>
  20 #include <OpenGL/glu.h>
  21 #else
  22 #include <GL/gl.h>
  23 #include <GL/glu.h>
  24 #endif
  25 #include <string.h>
  26 #include <math.h>
  27
  28 #include "ogl_init.h"
  29 #include "3d.h"
  30 #include "piggy.h"
  31 #include "../../3d/globvars.h"
  32 #include "error.h"
  33 #include "texmap.h"
  34 #include "palette.h"
  35 #include "rle.h"
  36 #include "mono.h"
  37
  38 #include "segment.h"
  39 #include "textures.h"
  40 #include "texmerge.h"
  41 #include "effects.h"
  42 #include "weapon.h"
  43 #include "powerup.h"
  44 #include "polyobj.h"
  45 #include "gamefont.h"
  46 #include "byteswap.h"
  47
  48 //change to 1 for lots of spew.
  49 #if 0
  50 #define glmprintf(a) mprintf(a)
  51 #else
  52 #define glmprintf(a)
  53 #endif
  54
  55 #ifndef M_PI
  56 #define M_PI 3.14159
  57 #endif
  58
  59 #if defined(_WIN32) || (defined(__APPLE__) && defined(__MACH__)) || defined(__sun__)
  60 #define cosf(a) cos(a)
  61 #define sinf(a) sin(a)
  62 #endif
  63
  64 unsigned char *ogl_pal=gr_palette;
  65
  66 int GL_texmagfilt=GL_NEAREST;
  67 int GL_texminfilt=GL_NEAREST;
  68 int GL_needmipmaps=0;
  69
  70 int last_width=-1,last_height=-1;
  71 int GL_TEXTURE_2D_enabled=-1;
  72 int GL_texclamp_enabled=-1;
  73
  74 extern int gr_renderstats;
  75 extern int gr_badtexture;
  76 int ogl_alttexmerge=1;//merge textures by just printing the seperate textures?
  77 int ogl_rgba_format=4;
  78 int ogl_intensity4_ok=1;
  79 int ogl_luminance4_alpha4_ok=1;
  80 int ogl_rgba2_ok=1;
  81 int ogl_readpixels_ok=1;
  82 int ogl_gettexlevelparam_ok=1;
  83 #ifdef GL_ARB_multitexture
  84 int ogl_arb_multitexture_ok=0;
  85 #endif
  86 #ifdef GL_SGIS_multitexture
  87 int ogl_sgis_multitexture_ok=0;
  88 #endif
  89
  90 int sphereh=0;
  91 int circleh5=0;
  92 int circleh10=0;
  93 int cross_lh[2]={0,0};
  94 int primary_lh[3]={0,0,0};
  95 int secondary_lh[5]={0,0,0,0,0};
  96 /*int lastbound=-1;
  97
  98 #define OGL_BINDTEXTURE(a) if(gr_badtexture>0) glBindTexture(GL_TEXTURE_2D, 0);\
  99         else if(a!=lastbound) {glBindTexture(GL_TEXTURE_2D, a);lastbound=a;}*/
 100 #define OGL_BINDTEXTURE(a) if(gr_badtexture>0) glBindTexture(GL_TEXTURE_2D, 0);\
 101         else glBindTexture(GL_TEXTURE_2D, a);
 102
 103
 104 ogl_texture ogl_texture_list[OGL_TEXTURE_LIST_SIZE];
 105 int ogl_texture_list_cur;
 106
 107 void ogl_init_texture_stats(ogl_texture* t){
 108         t->prio=0.3;//default prio
 109         t->lastrend=0;
 110         t->numrend=0;
 111 }
 112 void ogl_init_texture(ogl_texture* t){
 113         t->handle=0;
 114         t->internalformat=ogl_rgba_format;
 115         t->format=GL_RGBA;
 116         t->wrapstate=-1;
 117         t->w=t->h=0;
 118         ogl_init_texture_stats(t);
 119 }
 120 void ogl_reset_texture_stats_internal(void){
 121         int i;
 122         for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++)
 123                 if (ogl_texture_list[i].handle>0){
 124                         ogl_init_texture_stats(&ogl_texture_list[i]);
 125                 }
 126 }
 127 void ogl_init_texture_list_internal(void){
 128         int i;
 129         ogl_texture_list_cur=0;
 130         for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++)
 131                 ogl_init_texture(&ogl_texture_list[i]);
 132 }
 133 void ogl_smash_texture_list_internal(void){
 134         int i;
 135         sphereh=0;
 136         circleh5=0;
 137         circleh10=0;
 138         memset(cross_lh,0,sizeof(cross_lh));
 139         memset(primary_lh,0,sizeof(primary_lh));
 140         memset(secondary_lh,0,sizeof(secondary_lh));
 141         for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++){
 142                 if (ogl_texture_list[i].handle>0){
 143                         glDeleteTextures( 1, &ogl_texture_list[i].handle );
 144                         ogl_texture_list[i].handle=0;
 145                 }
 146                 ogl_texture_list[i].wrapstate=-1;
 147         }
 148 }
 149 void ogl_vivify_texture_list_internal(void){
 150 /*
 151    int i;
 152         ogl_texture* t;
 153         for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++){
 154                 t=&ogl_texture_list[i];
 155                 if (t->w>0){//erk, realised this can't be done since we'd need the texture bm_data too. hmmm.
 156                         ogl_loadbmtexture(t);
 157         }
 158 */
 159 }
 160
 161 ogl_texture* ogl_get_free_texture(void){
 162         int i;
 163         for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++){
 164                 if (ogl_texture_list[ogl_texture_list_cur].handle<=0 && ogl_texture_list[ogl_texture_list_cur].w==0)
 165                         return &ogl_texture_list[ogl_texture_list_cur];
 166                 if (++ogl_texture_list_cur>=OGL_TEXTURE_LIST_SIZE)
 167                         ogl_texture_list_cur=0;
 168         }
 169         Error("OGL: texture list full!\n");
 170 //      return NULL;
 171 }
 172 int ogl_texture_stats(void){
 173         int used=0,usedl4a4=0,usedrgba=0,databytes=0,truebytes=0,datatexel=0,truetexel=0,i;
 174         int prio0=0,prio1=0,prio2=0,prio3=0,prioh=0;
 175 //      int grabbed=0;
 176         ogl_texture* t;
 177         for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++){
 178                 t=&ogl_texture_list[i];
 179                 if (t->handle>0){
 180                         used++;
 181                         datatexel+=t->w*t->h;
 182                         truetexel+=t->tw*t->th;
 183                         databytes+=t->bytesu;
 184                         truebytes+=t->bytes;
 185                         if (t->prio<0.299)prio0++;
 186                         else if (t->prio<0.399)prio1++;
 187                         else if (t->prio<0.499)prio2++;
 188                         else if (t->prio<0.599)prio3++;
 189                         else prioh++;
 190                 }
 191 //              else if(t->w!=0)
 192 //                      grabbed++;
 193         }
 194         if (gr_renderstats){
 195                 gr_printf(5,GAME_FONT->ft_h*14+3*14,"%i(%i,%i) %iK(%iK wasted)",used,usedrgba,usedl4a4,truebytes/1024,(truebytes-databytes)/1024);
 196         }
 197 //      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));
 198         return truebytes;
 199 }
 200 int ogl_mem_target=-1;
 201 void ogl_clean_texture_cache(void){
 202         ogl_texture* t;
 203         int i,bytes;
 204         int time=120;
 205
 206         if (ogl_mem_target<0){
 207                 if (gr_renderstats)
 208                         ogl_texture_stats();
 209                 return;
 210         }
 211
 212         bytes=ogl_texture_stats();
 213         while (bytes>ogl_mem_target){
 214                 for (i=0;i<OGL_TEXTURE_LIST_SIZE;i++){
 215                         t=&ogl_texture_list[i];
 216                         if (t->handle>0){
 217                                 if (t->lastrend+f1_0*time<GameTime){
 218                                         ogl_freetexture(t);
 219                                         bytes-=t->bytes;
 220                                         if (bytes<ogl_mem_target)
 221                                                 return;
 222                                 }
 223                         }
 224                 }
 225                 if (time==0)
 226                         Error("not enough mem?");
 227                 time=time/2;
 228         }
 229
 230 }
 231 void ogl_bindbmtex(grs_bitmap *bm){
 232         if (bm->gltexture==NULL || bm->gltexture->handle<=0)
 233                 ogl_loadbmtexture(bm);
 234         OGL_BINDTEXTURE(bm->gltexture->handle);
 235         bm->gltexture->lastrend=GameTime;
 236         bm->gltexture->numrend++;
 237 ////    if (bm->gltexture->numrend==80 || bm->gltexture->numrend==4000 || bm->gltexture->numrend==80000){
 238 //      if (bm->gltexture->numrend==100){
 239 //              bm->gltexture->prio+=0.1;
 240 ////            glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_PRIORITY,bm->gltexture->prio);
 241 //              glPrioritizeTextures(1,&bm->gltexture->handle,&bm->gltexture->prio);
 242 //      }
 243 }
 244 //gltexture MUST be bound first
 245 void ogl_texwrap(ogl_texture *gltexture,int state){
 246         if (gltexture->wrapstate!=state || gltexture->numrend<1){
 247                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, state);
 248                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, state);
 249                 gltexture->wrapstate=state;
 250         }
 251 }
 252
 253 //crude texture precaching
 254 //handles: powerups, walls, weapons, polymodels, etc.
 255 //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.
 256 //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
 257 //TODO: doors
 258
 259 void ogl_cache_polymodel_textures(int model_num){
 260         polymodel *po=&Polygon_models[model_num];
 261         int i;
 262         for (i=0;i<po->n_textures;i++)  {
 263 //              texture_list_index[i] = ObjBitmaps[ObjBitmapPtrs[po->first_texture+i]];
 264                 ogl_loadbmtexture(&GameBitmaps[ObjBitmaps[ObjBitmapPtrs[po->first_texture+i]].index]);
 265         }
 266 }
 267 void ogl_cache_vclip_textures(vclip *vc){
 268         int i;
 269         for (i=0;i<vc->num_frames;i++){
 270                 PIGGY_PAGE_IN(vc->frames[i]);
 271                 ogl_loadbmtexture(&GameBitmaps[vc->frames[i].index]);
 272         }
 273 }
 274 #define ogl_cache_vclipn_textures(i) ogl_cache_vclip_textures(&Vclip[i])
 275 void ogl_cache_weapon_textures(weapon_info *w){
 276         ogl_cache_vclipn_textures(w->flash_vclip);
 277         ogl_cache_vclipn_textures(w->robot_hit_vclip);
 278         ogl_cache_vclipn_textures(w->wall_hit_vclip);
 279         if (w->render_type==WEAPON_RENDER_VCLIP)
 280                 ogl_cache_vclipn_textures(w->weapon_vclip);
 281         else if (w->render_type==WEAPON_RENDER_POLYMODEL)
 282                 ogl_cache_polymodel_textures(w->model_num);
 283 }
 284 void ogl_cache_level_textures(void){
 285         int seg,side,i;
 286         eclip *ec;
 287         short tmap1,tmap2;
 288         grs_bitmap *bm,*bm2;
 289         struct side *sidep;
 290         int max_efx=0,ef;
 291
 292         ogl_reset_texture_stats_internal();//loading a new lev should reset textures
 293
 294         for (i=0,ec=Effects;i<Num_effects;i++,ec++) {
 295                 if ((Effects[i].changing_wall_texture == -1) && (Effects[i].changing_object_texture==-1) )
 296                         continue;
 297                 if (ec->vc.num_frames>max_efx)
 298                         max_efx=ec->vc.num_frames;
 299         }
 300         glmprintf((0,"max_efx:%i\n",max_efx));
 301         for (ef=0;ef<max_efx;ef++){
 302                 for (i=0,ec=Effects;i<Num_effects;i++,ec++) {
 303                         if ((Effects[i].changing_wall_texture == -1) && (Effects[i].changing_object_texture==-1) )
 304                                 continue;
 305 //                      if (ec->vc.num_frames>max_efx)
 306 //                              max_efx=ec->vc.num_frames;
 307                         ec->time_left=-1;
 308                 }
 309                 do_special_effects();
 310
 311                 for (seg=0;seg<Num_segments;seg++){
 312                         for (side=0;side<MAX_SIDES_PER_SEGMENT;side++){
 313                                 sidep=&Segments[seg].sides[side];
 314                                 tmap1=sidep->tmap_num;
 315                                 tmap2=sidep->tmap_num2;
 316                                 if (tmap1<0 || tmap1>=NumTextures){
 317                                         glmprintf((0,"ogl_cache_level_textures %i %i %i %i\n",seg,side,tmap1,NumTextures));
 318                                         //                              tmap1=0;
 319                                         continue;
 320                                 }
 321                                 PIGGY_PAGE_IN(Textures[tmap1]);
 322                                 bm = &GameBitmaps[Textures[tmap1].index];
 323                                 if (tmap2 != 0){
 324                                         PIGGY_PAGE_IN(Textures[tmap2&0x3FFF]);
 325                                         bm2 = &GameBitmaps[Textures[tmap2&0x3FFF].index];
 326                                         if (ogl_alttexmerge==0 || (bm2->bm_flags & BM_FLAG_SUPER_TRANSPARENT))
 327                                                 bm = texmerge_get_cached_bitmap( tmap1, tmap2 );
 328                                         else {
 329                                                 ogl_loadbmtexture(bm2);
 330                                         }
 331                                         //                              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));
 332                                 }
 333                                 ogl_loadbmtexture(bm);
 334                         }
 335                 }
 336                 glmprintf((0,"finished ef:%i\n",ef));
 337         }
 338         reset_special_effects();
 339         init_special_effects();
 340         {
 341 //              int laserlev=1;
 342                 //always have lasers and concs
 343                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[LASER_INDEX]]);
 344                 ogl_cache_weapon_textures(&Weapon_info[Secondary_weapon_to_weapon_info[CONCUSSION_INDEX]]);
 345                 for (i=0;i<Highest_object_index;i++){
 346                         if(Objects[i].render_type==RT_POWERUP){
 347                                 ogl_cache_vclipn_textures(Objects[i].rtype.vclip_info.vclip_num);
 348                                 switch (Objects[i].id){
 349 /*                                      case POW_LASER:
 350                                                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[LASER_INDEX]]);
 351 //                                              if (laserlev<4)
 352 //                                                      laserlev++;
 353                                                 break;*/
 354                                         case POW_VULCAN_WEAPON:
 355                                                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[VULCAN_INDEX]]);
 356                                                 break;
 357                                         case POW_SPREADFIRE_WEAPON:
 358                                                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[SPREADFIRE_INDEX]]);
 359                                                 break;
 360                                         case POW_PLASMA_WEAPON:
 361                                                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[PLASMA_INDEX]]);
 362                                                 break;
 363                                         case POW_FUSION_WEAPON:
 364                                                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[FUSION_INDEX]]);
 365                                                 break;
 366 /*                                      case POW_MISSILE_1:
 367                                         case POW_MISSILE_4:
 368                                                 ogl_cache_weapon_textures(&Weapon_info[Secondary_weapon_to_weapon_info[CONCUSSION_INDEX]]);
 369                                                 break;*/
 370                                         case POW_PROXIMITY_WEAPON:
 371                                                 ogl_cache_weapon_textures(&Weapon_info[Secondary_weapon_to_weapon_info[PROXIMITY_INDEX]]);
 372                                                 break;
 373                                         case POW_HOMING_AMMO_1:
 374                                         case POW_HOMING_AMMO_4:
 375                                                 ogl_cache_weapon_textures(&Weapon_info[Primary_weapon_to_weapon_info[HOMING_INDEX]]);
 376                                                 break;
 377                                         case POW_SMARTBOMB_WEAPON:
 378                                                 ogl_cache_weapon_textures(&Weapon_info[Secondary_weapon_to_weapon_info[SMART_INDEX]]);
 379                                                 break;
 380                                         case POW_MEGA_WEAPON:
 381                                                 ogl_cache_weapon_textures(&Weapon_info[Secondary_weapon_to_weapon_info[MEGA_INDEX]]);
 382                                                 break;
 383                                 }
 384                         }
 385                         else if(Objects[i].render_type==RT_POLYOBJ){
 386                                 ogl_cache_polymodel_textures(Objects[i].rtype.pobj_info.model_num);
 387                         }
 388                 }
 389         }
 390         glmprintf((0,"finished caching\n"));
 391 }
 392
 393 int r_polyc,r_tpolyc,r_bitmapc,r_ubitmapc,r_ubitbltc,r_upixelc;
 394 int r_texcount=0;
 395 #define f2glf(x) (f2fl(x))
 396
 397 bool g3_draw_line(g3s_point *p0,g3s_point *p1)
 398 {
 399         int c;
 400         c=grd_curcanv->cv_color;
 401         OGL_DISABLE(TEXTURE_2D);
 402         glColor3f(PAL2Tr(c),PAL2Tg(c),PAL2Tb(c));
 403         glBegin(GL_LINES);
 404         glVertex3f(f2glf(p0->p3_vec.x),f2glf(p0->p3_vec.y),-f2glf(p0->p3_vec.z));
 405         glVertex3f(f2glf(p1->p3_vec.x),f2glf(p1->p3_vec.y),-f2glf(p1->p3_vec.z));
 406         glEnd();
 407         return 1;
 408 }
 409 void ogl_drawcircle2(int nsides,int type,float xsc,float xo,float ysc,float yo){
 410         int i;
 411         float ang;
 412         glBegin(type);
 413         for (i=0; i<nsides; i++) {
 414                 ang = 2.0*M_PI*i/nsides;
 415                 glVertex2f(cosf(ang)*xsc+xo,sinf(ang)*ysc+yo);
 416         }
 417         glEnd();
 418 }
 419 void ogl_drawcircle(int nsides,int type){
 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),sinf(ang));
 426         }
 427         glEnd();
 428 }
 429 int circle_list_init(int nsides,int type,int mode) {
 430         int hand=glGenLists(1);
 431         glNewList(hand, mode);
 432         /* draw a unit radius circle in xy plane centered on origin */
 433         ogl_drawcircle(nsides,type);
 434         glEndList();
 435         return hand;
 436 }
 437 float bright_g[4]={     32.0/256,       252.0/256,      32.0/256};
 438 float dark_g[4]={       32.0/256,       148.0/256,      32.0/256};
 439 float darker_g[4]={     32.0/256,       128.0/256,      32.0/256};
 440 void ogl_draw_reticle(int cross,int primary,int secondary){
 441         float scale=(float)Canvas_height/(float)grd_curscreen->sc_h;
 442         glPushMatrix();
 443 //      glTranslatef(0.5,0.5,0);
 444         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);
 445         glScalef(scale/320.0,scale/200.0,scale);//the positions are based upon the standard reticle at 320x200 res.
 446
 447         OGL_DISABLE(TEXTURE_2D);
 448
 449         if (!cross_lh[cross]){
 450                 cross_lh[cross]=glGenLists(1);
 451                 glNewList(cross_lh[cross], GL_COMPILE_AND_EXECUTE);
 452                 glBegin(GL_LINES);
 453                 //cross top left
 454                 glColor3fv(darker_g);
 455                 glVertex2f(-4.0,4.0);
 456                 if (cross)
 457                         glColor3fv(bright_g);
 458                 else
 459                         glColor3fv(dark_g);
 460                 glVertex2f(-2.0,2.0);
 461
 462                 //cross bottom left
 463                 glColor3fv(dark_g);
 464                 glVertex2f(-3.0,-2.0);
 465                 if (cross)
 466                         glColor3fv(bright_g);
 467                 glVertex2f(-2.0,-1.0);
 468
 469                 //cross top right
 470                 glColor3fv(darker_g);
 471                 glVertex2f(4.0,4.0);
 472                 if (cross)
 473                         glColor3fv(bright_g);
 474                 else
 475                         glColor3fv(dark_g);
 476                 glVertex2f(2.0,2.0);
 477
 478                 //cross bottom right
 479                 glColor3fv(dark_g);
 480                 glVertex2f(3.0,-2.0);
 481                 if (cross)
 482                         glColor3fv(bright_g);
 483                 glVertex2f(2.0,-1.0);
 484
 485                 glEnd();
 486                 glEndList();
 487         }else
 488                 glCallList(cross_lh[cross]);
 489
 490 //      if (Canvas_height>200)
 491 //              glLineWidth(Canvas_height/(float)200);
 492         if (!primary_lh[primary]){
 493                 primary_lh[primary]=glGenLists(1);
 494                 glNewList(primary_lh[primary], GL_COMPILE_AND_EXECUTE);
 495
 496                 glColor3fv(dark_g);
 497                 glBegin(GL_LINES);
 498                 //left primary bar
 499                 glVertex2f(-14.0,-8.0);
 500                 glVertex2f(-8.0,-5.0);
 501                 //right primary bar
 502                 glVertex2f(14.0,-8.0);
 503                 glVertex2f(8.0,-5.0);
 504                 glEnd();
 505                 if (primary==0)
 506                         glColor3fv(dark_g);
 507                 else
 508                         glColor3fv(bright_g);
 509                 //left upper
 510                 ogl_drawcircle2(6,GL_POLYGON,1.5,-7.0,1.5,-5.0);
 511                 //right upper
 512                 ogl_drawcircle2(6,GL_POLYGON,1.5,7.0,1.5,-5.0);
 513                 if (primary!=2)
 514                         glColor3fv(dark_g);
 515                 else
 516                         glColor3fv(bright_g);
 517                 //left lower
 518                 ogl_drawcircle2(4,GL_POLYGON,1.0,-14.0,1.0,-8.0);
 519                 //right lower
 520                 ogl_drawcircle2(4,GL_POLYGON,1.0,14.0,1.0,-8.0);
 521
 522                 glEndList();
 523         }else
 524                 glCallList(primary_lh[primary]);
 525 //      if (Canvas_height>200)
 526 //              glLineWidth(1);
 527
 528         if (!secondary_lh[secondary]){
 529                 secondary_lh[secondary]=glGenLists(1);
 530                 glNewList(secondary_lh[secondary], GL_COMPILE_AND_EXECUTE);
 531                 if (secondary<=2){
 532                         //left secondary
 533                         if (secondary!=1)
 534                                 glColor3fv(darker_g);
 535                         else
 536                                 glColor3fv(bright_g);
 537                         ogl_drawcircle2(8,GL_LINE_LOOP,2.0,-10.0,2.0,-1.0);
 538                         //right secondary
 539                         if (secondary!=2)
 540                                 glColor3fv(darker_g);
 541                         else
 542                                 glColor3fv(bright_g);
 543                         ogl_drawcircle2(8,GL_LINE_LOOP,2.0,10.0,2.0,-1.0);
 544                 }else{
 545                         //bottom/middle secondary
 546                         if (secondary!=4)
 547                                 glColor3fv(darker_g);
 548                         else
 549                                 glColor3fv(bright_g);
 550                         ogl_drawcircle2(8,GL_LINE_LOOP,2.0,0.0,2.0,-7.0);
 551                 }
 552                 glEndList();
 553         }else
 554                 glCallList(secondary_lh[secondary]);
 555
 556         glPopMatrix();
 557 }
 558 int g3_draw_sphere(g3s_point *pnt,fix rad){
 559         int c;
 560         c=grd_curcanv->cv_color;
 561         OGL_DISABLE(TEXTURE_2D);
 562 //      glPointSize(f2glf(rad));
 563         glColor3f(CPAL2Tr(c),CPAL2Tg(c),CPAL2Tb(c));
 564 //      glBegin(GL_POINTS);
 565 //      glVertex3f(f2glf(pnt->p3_vec.x),f2glf(pnt->p3_vec.y),-f2glf(pnt->p3_vec.z));
 566 //      glEnd();
 567         glPushMatrix();
 568         glTranslatef(f2glf(pnt->p3_vec.x),f2glf(pnt->p3_vec.y),-f2glf(pnt->p3_vec.z));
 569         glScalef(f2glf(rad),f2glf(rad),f2glf(rad));
 570         if (!sphereh) sphereh=circle_list_init(20,GL_POLYGON,GL_COMPILE_AND_EXECUTE);
 571         else glCallList(sphereh);
 572         glPopMatrix();
 573         return 0;
 574
 575 }
 576 int gr_ucircle(fix xc1,fix yc1,fix r1){//dunno if this really works, radar doesn't seem to.. hm..
 577         int c;
 578         c=grd_curcanv->cv_color;
 579         OGL_DISABLE(TEXTURE_2D);
 580 //      glPointSize(f2glf(rad));
 581         glColor3f(CPAL2Tr(c),CPAL2Tg(c),CPAL2Tb(c));
 582 //      glBegin(GL_POINTS);
 583 //      glVertex3f(f2glf(pnt->p3_vec.x),f2glf(pnt->p3_vec.y),-f2glf(pnt->p3_vec.z));
 584 //      glEnd();
 585         glPushMatrix();
 586         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)));
 587         glTranslatef(
 588                         (f2fl(xc1)+grd_curcanv->cv_bitmap.bm_x)/(float)last_width,
 589                         1.0-(f2fl(yc1)+grd_curcanv->cv_bitmap.bm_y)/(float)last_height,0);
 590         glScalef(f2fl(r1),f2fl(r1),f2fl(r1));
 591         if (r1<=i2f(5)){
 592                 if (!circleh5) circleh5=circle_list_init(5,GL_LINE_LOOP,GL_COMPILE_AND_EXECUTE);
 593                 else glCallList(circleh5);
 594         }else{
 595                 if (!circleh10) circleh10=circle_list_init(10,GL_LINE_LOOP,GL_COMPILE_AND_EXECUTE);
 596                 else glCallList(circleh10);
 597         }
 598         glPopMatrix();
 599         return 0;
 600 }
 601 int gr_circle(fix xc1,fix yc1,fix r1){
 602         return gr_ucircle(xc1,yc1,r1);
 603 }
 604
 605 bool g3_draw_poly(int nv,g3s_point **pointlist)
 606 {
 607         int c;
 608         r_polyc++;
 609         c=grd_curcanv->cv_color;
 610 //      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);
 611         OGL_DISABLE(TEXTURE_2D);
 612         glBegin(GL_TRIANGLE_FAN);
 613         glColor3f(PAL2Tr(c),PAL2Tg(c),PAL2Tb(c));
 614         for (c=0;c<nv;c++){
 615         //      glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),f2glf(pointlist[c]->p3_vec.z));
 616                 glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),-f2glf(pointlist[c]->p3_vec.z));
 617         }
 618         glEnd();
 619         return 0;
 620 }
 621
 622 bool g3_draw_transp_poly(int nv, g3s_point **pointlist)
 623 {
 624         int c;
 625
 626         r_polyc++;
 627         OGL_DISABLE(TEXTURE_2D);
 628         glColor4f(0, 0, 0, (float)Gr_scanline_darkening_level / 31.0);
 629         glBegin(GL_TRIANGLE_FAN);
 630         for (c = 0; c < nv; c++)
 631         {
 632                 glVertex3f(f2glf(pointlist[c]->p3_vec.x), f2glf(pointlist[c]->p3_vec.y), -f2glf(pointlist[c]->p3_vec.z));
 633         }
 634         glEnd();
 635         return 0;
 636 }
 637
 638 void gr_upoly_tmap(int nverts, int *vert ){
 639                 mprintf((0,"gr_upoly_tmap: unhandled\n"));//should never get called
 640 }
 641 void draw_tmap_flat(grs_bitmap *bm,int nv,g3s_point **vertlist){
 642                 mprintf((0,"draw_tmap_flat: unhandled\n"));//should never get called
 643 }
 644 extern void (*tmap_drawer_ptr)(grs_bitmap *bm,int nv,g3s_point **vertlist);
 645 bool g3_draw_tmap(int nv,g3s_point **pointlist,g3s_uvl *uvl_list,grs_bitmap *bm)
 646 {
 647         int c;
 648         float l;
 649         if (tmap_drawer_ptr==draw_tmap_flat){
 650 /*              fix average_light=0;
 651                 int i;
 652                 for (i=0; i<nv; i++)
 653                         average_light += uvl_list[i].l;*/
 654                 OGL_DISABLE(TEXTURE_2D);
 655 //              glmprintf((0,"Gr_scanline_darkening_level=%i %f\n",Gr_scanline_darkening_level,Gr_scanline_darkening_level/(float)NUM_LIGHTING_LEVELS));
 656                 glColor4f(0,0,0,1.0-(Gr_scanline_darkening_level/(float)NUM_LIGHTING_LEVELS));
 657                 //glColor4f(0,0,0,f2fl(average_light/nv));
 658                 glBegin(GL_TRIANGLE_FAN);
 659                 for (c=0;c<nv;c++){
 660 //                      glColor4f(0,0,0,f2fl(uvl_list[c].l));
 661 //                      glTexCoord2f(f2glf(uvl_list[c].u),f2glf(uvl_list[c].v));
 662                         glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),-f2glf(pointlist[c]->p3_vec.z));
 663                 }
 664                 glEnd();
 665         }else if (tmap_drawer_ptr==draw_tmap){
 666                 r_tpolyc++;
 667                 /*      if (bm->bm_w !=64||bm->bm_h!=64)
 668                         printf("g3_draw_tmap w %i h %i\n",bm->bm_w,bm->bm_h);*/
 669                 OGL_ENABLE(TEXTURE_2D);
 670                 ogl_bindbmtex(bm);
 671                 ogl_texwrap(bm->gltexture,GL_REPEAT);
 672                 glBegin(GL_TRIANGLE_FAN);
 673                 for (c=0;c<nv;c++){
 674                         if (bm->bm_flags&BM_FLAG_NO_LIGHTING){
 675                                 l=1.0;
 676                         }else{
 677                                 //l=f2fl(uvl_list[c].l)+gr_palette_gamma/63.0;
 678                                 l=f2fl(uvl_list[c].l);
 679                         }
 680                         glColor3f(l,l,l);
 681                         glTexCoord2f(f2glf(uvl_list[c].u),f2glf(uvl_list[c].v));
 682                         //glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),f2glf(pointlist[c]->p3_vec.z));
 683                         glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),-f2glf(pointlist[c]->p3_vec.z));
 684                 }
 685                 glEnd();
 686         }else{
 687                 mprintf((0,"g3_draw_tmap: unhandled tmap_drawer %p\n",tmap_drawer_ptr));
 688         }
 689         return 0;
 690 }
 691 bool g3_draw_tmap_2(int nv,g3s_point **pointlist,g3s_uvl *uvl_list,grs_bitmap *bmbot,grs_bitmap *bm,int orient)
 692 {
 693 #if (defined(GL_ARB_multitexture) || defined(GL_SGIS_multitexture))
 694         if (ogl_arb_multitexture_ok || ogl_sgis_multitexture_ok){
 695                 int c;
 696                 float l,u1,v1;
 697
 698                 r_tpolyc+=2;
 699                 /*      if (bm->bm_w !=64||bm->bm_h!=64)
 700                         printf("g3_draw_tmap w %i h %i\n",bm->bm_w,bm->bm_h);*/
 701                 if (ogl_arb_multitexture_ok){
 702 #ifdef GL_ARB_multitexture
 703                         glActiveTextureARB(GL_TEXTURE0_ARB);
 704 #endif
 705                 }else if (ogl_sgis_multitexture_ok){
 706 #ifdef GL_SGIS_multitexture
 707                         glSelectTextureSGIS(GL_TEXTURE0_SGIS);
 708 #endif
 709                 }
 710                 ogl_bindbmtex(bmbot);
 711                 OGL_ENABLE(TEXTURE_2D);
 712                 glEnable(GL_TEXTURE_2D);
 713                 ogl_texwrap(bmbot->gltexture,GL_REPEAT);
 714                 glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 715                 glEnable(GL_BLEND);
 716                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 717
 718                 if (ogl_arb_multitexture_ok){
 719 #ifdef GL_ARB_multitexture
 720                         glActiveTextureARB(GL_TEXTURE1_ARB);
 721 #endif
 722                 }else if (ogl_sgis_multitexture_ok){
 723 #ifdef GL_SGIS_multitexture
 724                         glSelectTextureSGIS(GL_TEXTURE1_SGIS);
 725 #endif
 726                 }
 727                 ogl_bindbmtex(bm);
 728 //              OGL_ENABLE(TEXTURE_2D);
 729                 glEnable(GL_TEXTURE_2D);
 730                 ogl_texwrap(bm->gltexture,GL_REPEAT);
 731                 glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 732
 733                 glEnable(GL_BLEND);
 734                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 735
 736                 glBegin(GL_TRIANGLE_FAN);
 737                 for (c=0;c<nv;c++){
 738                         switch(orient){
 739                                 case 1:
 740                                         u1=1.0-f2glf(uvl_list[c].v);
 741                                         v1=f2glf(uvl_list[c].u);
 742                                         break;
 743                                 case 2:
 744                                         u1=1.0-f2glf(uvl_list[c].u);
 745                                         v1=1.0-f2glf(uvl_list[c].v);
 746                                         break;
 747                                 case 3:
 748                                         u1=f2glf(uvl_list[c].v);
 749                                         v1=1.0-f2glf(uvl_list[c].u);
 750                                         break;
 751                                 default:
 752                                         u1=f2glf(uvl_list[c].u);
 753                                         v1=f2glf(uvl_list[c].v);
 754                                         break;
 755                         }
 756                         if (bm->bm_flags&BM_FLAG_NO_LIGHTING){
 757                                 l=1.0;
 758                         }else{
 759                                 //l=f2fl(uvl_list[c].l)+gr_palette_gamma/63.0;
 760                                 l=f2fl(uvl_list[c].l);
 761                         }
 762                         glColor3f(l,l,l);
 763 //                      glTexCoord2f(f2glf(uvl_list[c].u),f2glf(uvl_list[c].v));
 764                         if (ogl_arb_multitexture_ok){
 765 #ifdef GL_ARB_multitexture
 766                                 glMultiTexCoord2fARB(GL_TEXTURE0_ARB,f2glf(uvl_list[c].u),f2glf(uvl_list[c].v));
 767 #endif
 768                         }else if (ogl_sgis_multitexture_ok){
 769 #ifdef GL_SGIS_multitexture
 770                                 glMultiTexCoord2fSGIS(GL_TEXTURE0_SGIS,f2glf(uvl_list[c].u),f2glf(uvl_list[c].v));
 771 #endif
 772                         }
 773                         if (ogl_arb_multitexture_ok){
 774 #ifdef GL_ARB_multitexture
 775                                 glMultiTexCoord2fARB(GL_TEXTURE1_ARB,u1,v1);
 776 #endif
 777                         }else if (ogl_sgis_multitexture_ok){
 778 #ifdef GL_SGIS_multitexture
 779                                 glMultiTexCoord2fSGIS(GL_TEXTURE1_SGIS,u1,v1);
 780 #endif
 781                         }
 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                         glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),-f2glf(pointlist[c]->p3_vec.z));
 785                 }
 786                 glEnd();
 787 /*              if (ogl_arb_multitexture_ok){
 788 #ifdef GL_ARB_multitexture
 789                         glActiveTextureARB(GL_TEXTURE1_ARB);
 790 #endif
 791                 }else if (ogl_sgis_multitexture_ok){
 792 #ifdef GL_SGIS_multitexture
 793                         glSelectTextureSGIS(GL_TEXTURE1_SGIS);
 794 #endif
 795                 }
 796 //              OGL_ENABLE(TEXTURE_2D);*/
 797                 glDisable(GL_TEXTURE_2D);
 798                 if (ogl_arb_multitexture_ok){
 799 #ifdef GL_ARB_multitexture
 800                         glActiveTextureARB(GL_TEXTURE0_ARB);
 801 #endif
 802                 }else if (ogl_sgis_multitexture_ok){
 803 #ifdef GL_SGIS_multitexture
 804                         glSelectTextureSGIS(GL_TEXTURE0_SGIS);
 805 #endif
 806                 }
 807         }else
 808 #endif
 809         {
 810                 int c;
 811                 float l,u1,v1;
 812
 813                 g3_draw_tmap(nv,pointlist,uvl_list,bmbot);//draw the bottom texture first.. could be optimized with multitexturing..
 814
 815                 r_tpolyc++;
 816                 /*      if (bm->bm_w !=64||bm->bm_h!=64)
 817                         printf("g3_draw_tmap w %i h %i\n",bm->bm_w,bm->bm_h);*/
 818                 OGL_ENABLE(TEXTURE_2D);
 819                 ogl_bindbmtex(bm);
 820                 ogl_texwrap(bm->gltexture,GL_REPEAT);
 821                 glBegin(GL_TRIANGLE_FAN);
 822                 for (c=0;c<nv;c++){
 823                         switch(orient){
 824                                 case 1:
 825                                         u1=1.0-f2glf(uvl_list[c].v);
 826                                         v1=f2glf(uvl_list[c].u);
 827                                         break;
 828                                 case 2:
 829                                         u1=1.0-f2glf(uvl_list[c].u);
 830                                         v1=1.0-f2glf(uvl_list[c].v);
 831                                         break;
 832                                 case 3:
 833                                         u1=f2glf(uvl_list[c].v);
 834                                         v1=1.0-f2glf(uvl_list[c].u);
 835                                         break;
 836                                 default:
 837                                         u1=f2glf(uvl_list[c].u);
 838                                         v1=f2glf(uvl_list[c].v);
 839                                         break;
 840                         }
 841                         if (bm->bm_flags&BM_FLAG_NO_LIGHTING){
 842                                 l=1.0;
 843                         }else{
 844                                 //l=f2fl(uvl_list[c].l)+gr_palette_gamma/63.0;
 845                                 l=f2fl(uvl_list[c].l);
 846                         }
 847                         glColor3f(l,l,l);
 848                         glTexCoord2f(u1,v1);
 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                         glVertex3f(f2glf(pointlist[c]->p3_vec.x),f2glf(pointlist[c]->p3_vec.y),-f2glf(pointlist[c]->p3_vec.z));
 852                 }
 853                 glEnd();
 854         }
 855         return 0;
 856 }
 857
 858 bool g3_draw_bitmap(vms_vector *pos,fix width,fix height,grs_bitmap *bm, int orientation)
 859 {
 860         //float l=1.0;
 861         vms_vector pv,v1;//,v2;
 862         int i;
 863         r_bitmapc++;
 864         v1.z=0;
 865 //      printf("g3_draw_bitmap: %f,%f,%f - ",f2glf(pos->x),f2glf(pos->y),-f2glf(pos->z));
 866 //      printf("(%f,%f,%f) ",f2glf(View_position.x),f2glf(View_position.y),-f2glf(View_position.z));
 867
 868         OGL_ENABLE(TEXTURE_2D);
 869         ogl_bindbmtex(bm);
 870         ogl_texwrap(bm->gltexture,GL_CLAMP);
 871
 872         glBegin(GL_QUADS);
 873         glColor3f(1.0,1.0,1.0);
 874     width = fixmul(width,Matrix_scale.x);
 875     height = fixmul(height,Matrix_scale.y);
 876         for (i=0;i<4;i++){
 877 //              g3_rotate_point(&p[i],pos);
 878                 vm_vec_sub(&v1,pos,&View_position);
 879                 vm_vec_rotate(&pv,&v1,&View_matrix);
 880 //              printf(" %f,%f,%f->",f2glf(pv.x),f2glf(pv.y),-f2glf(pv.z));
 881                 switch (i){
 882                         case 0:
 883                                 glTexCoord2f(0.0, 0.0);
 884                                 pv.x+=-width;
 885                                 pv.y+=height;
 886                                 break;
 887                         case 1:
 888                                 glTexCoord2f(bm->gltexture->u, 0.0);
 889                                 pv.x+=width;
 890                                 pv.y+=height;
 891                                 break;
 892                         case 2:
 893                                 glTexCoord2f(bm->gltexture->u, bm->gltexture->v);
 894                                 pv.x+=width;
 895                                 pv.y+=-height;
 896                                 break;
 897                         case 3:
 898                                 glTexCoord2f(0.0, bm->gltexture->v);
 899                                 pv.x+=-width;
 900                                 pv.y+=-height;
 901                                 break;
 902                 }
 903 //              vm_vec_rotate(&v2,&v1,&View_matrix);
 904 //              vm_vec_sub(&v1,&v2,&pv);
 905                 //vm_vec_sub(&v1,&pv,&v2);
 906 //              vm_vec_sub(&v2,&pv,&v1);
 907                 glVertex3f(f2glf(pv.x),f2glf(pv.y),-f2glf(pv.z));
 908 //              printf("%f,%f,%f ",f2glf(v1.x),f2glf(v1.y),-f2glf(v1.z));
 909         }
 910         glEnd();
 911 //      printf("\n");
 912
 913         return 0;
 914 }
 915
 916 bool ogl_ubitmapm_c(int x, int y,grs_bitmap *bm,int c)
 917 {
 918         GLfloat xo,yo,xf,yf;
 919         GLfloat u1,u2,v1,v2;
 920         r_ubitmapc++;
 921         x+=grd_curcanv->cv_bitmap.bm_x;
 922         y+=grd_curcanv->cv_bitmap.bm_y;
 923         xo=x/(float)last_width;
 924         xf=(bm->bm_w+x)/(float)last_width;
 925         yo=1.0-y/(float)last_height;
 926         yf=1.0-(bm->bm_h+y)/(float)last_height;
 927
 928 //      printf("g3_draw_bitmap: %f,%f,%f - ",f2glf(pos->x),f2glf(pos->y),-f2glf(pos->z));
 929 //      printf("(%f,%f,%f) ",f2glf(View_position.x),f2glf(View_position.y),-f2glf(View_position.z));
 930
 931 /*              glEnABLE(ALPHA_TEST);
 932         glAlphaFunc(GL_GREATER,0.0);*/
 933
 934         OGL_ENABLE(TEXTURE_2D);
 935         ogl_bindbmtex(bm);
 936         ogl_texwrap(bm->gltexture,GL_CLAMP);
 937
 938         if (bm->bm_x==0){
 939                 u1=0;
 940                 if (bm->bm_w==bm->gltexture->w)
 941                         u2=bm->gltexture->u;
 942                 else
 943                         u2=(bm->bm_w+bm->bm_x)/(float)bm->gltexture->tw;
 944         }else {
 945                 u1=bm->bm_x/(float)bm->gltexture->tw;
 946                 u2=(bm->bm_w+bm->bm_x)/(float)bm->gltexture->tw;
 947         }
 948         if (bm->bm_y==0){
 949                 v1=0;
 950                 if (bm->bm_h==bm->gltexture->h)
 951                         v2=bm->gltexture->v;
 952                 else
 953                         v2=(bm->bm_h+bm->bm_y)/(float)bm->gltexture->th;
 954         }else{
 955                 v1=bm->bm_y/(float)bm->gltexture->th;
 956                 v2=(bm->bm_h+bm->bm_y)/(float)bm->gltexture->th;
 957         }
 958
 959         glBegin(GL_QUADS);
 960         if (c<0)
 961                 glColor3f(1.0,1.0,1.0);
 962         else
 963                 glColor3f(CPAL2Tr(c),CPAL2Tg(c),CPAL2Tb(c));
 964         glTexCoord2f(u1, v1); glVertex2f(xo, yo);
 965         glTexCoord2f(u2, v1); glVertex2f(xf, yo);
 966         glTexCoord2f(u2, v2); glVertex2f(xf, yf);
 967         glTexCoord2f(u1, v2); glVertex2f(xo, yf);
 968         glEnd();
 969 //      glDisABLE(ALPHA_TEST);
 970
 971         return 0;
 972 }
 973 bool ogl_ubitmapm(int x, int y,grs_bitmap *bm){
 974         return ogl_ubitmapm_c(x,y,bm,-1);
 975 //      return ogl_ubitblt(bm->bm_w,bm->bm_h,x,y,0,0,bm,NULL);
 976 }
 977 #if 0
 978 //also upsidedown, currently.
 979 bool ogl_ubitblt(int w,int h,int dx,int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest)
 980 {
 981         GLfloat xo,yo;//,xs,ys;
 982         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));
 983
 984         dx+=dest->bm_x;
 985         dy+=dest->bm_y;
 986
 987         xo=dx/(float)last_width;
 988 //      xo=dx/(float)grd_curscreen->sc_w;
 989 //      xs=w/(float)last_width;
 990         //yo=1.0-dy/(float)last_height;
 991         yo=1.0-(dy+h)/(float)last_height;
 992 //      ys=h/(float)last_height;
 993
 994 //      OGL_ENABLE(TEXTURE_2D);
 995
 996         OGL_DISABLE(TEXTURE_2D);
 997         glRasterPos2f(xo,yo);
 998         ogl_filltexbuf(src->bm_data,texbuf,src->bm_w,w,h,sx,sy,w,h,GL_RGBA);
 999         glDrawPixels(w,h,GL_RGBA,GL_UNSIGNED_BYTE,texbuf);
1000         glRasterPos2f(0,0);
1001
1002         return 0;
1003 }
1004 #else
1005 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)
1006 {
1007         GLfloat xo,yo,xs,ys;
1008         GLfloat u1,v1;//,u2,v2;
1009         ogl_texture tex;
1010 //      unsigned char *oldpal;
1011         r_ubitbltc++;
1012
1013         ogl_init_texture(&tex);
1014         tex.w=sw;tex.h=sh;
1015         tex.prio=0.0;tex.wantmip=0;
1016         tex.lw=src->bm_rowsize;
1017
1018 /*      if (w==src->bm_w && sx==0){
1019                 u1=0;u2=src->glu;
1020         }else{
1021                 u1=sx/(float)src->bm_w*src->glu;
1022                 u2=w/(float)src->bm_w*src->glu+u1;
1023         }
1024         if (h==src->bm_h && sy==0){
1025                 v1=0;v2=src->glv;
1026         }else{
1027                 v1=sy/(float)src->bm_h*src->glv;
1028                 v2=h/(float)src->bm_h*src->glv+v1;
1029         }*/
1030         u1=v1=0;
1031
1032         dx+=dest->bm_x;
1033         dy+=dest->bm_y;
1034         xo=dx/(float)last_width;
1035         xs=dw/(float)last_width;
1036         yo=1.0-dy/(float)last_height;
1037         ys=dh/(float)last_height;
1038
1039         OGL_ENABLE(TEXTURE_2D);
1040
1041 //      oldpal=ogl_pal;
1042         ogl_pal=gr_current_pal;
1043         ogl_loadtexture(src->bm_data,sx,sy,&tex);
1044 //      ogl_pal=oldpal;
1045         ogl_pal=gr_palette;
1046         OGL_BINDTEXTURE(tex.handle);
1047
1048         ogl_texwrap(&tex,GL_CLAMP);
1049
1050         glBegin(GL_QUADS);
1051         glColor3f(1.0,1.0,1.0);
1052         glTexCoord2f(u1, v1); glVertex2f(xo, yo);
1053         glTexCoord2f(tex.u, v1); glVertex2f(xo+xs, yo);
1054         glTexCoord2f(tex.u, tex.v); glVertex2f(xo+xs, yo-ys);
1055         glTexCoord2f(u1, tex.v); glVertex2f(xo, yo-ys);
1056         glEnd();
1057         ogl_freetexture(&tex);
1058         return 0;
1059 }
1060 bool ogl_ubitblt(int w,int h,int dx,int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest){
1061         return ogl_ubitblt_i(w,h,dx,dy,w,h,sx,sy,src,dest);
1062 }
1063 #endif
1064 bool ogl_ubitblt_tolinear(int w,int h,int dx,int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest){
1065 #if 1
1066         unsigned char *d,*s;
1067         int i,j;
1068         int w1,h1;
1069 //      w1=w;h1=h;
1070         w1=grd_curscreen->sc_w;h1=grd_curscreen->sc_h;
1071         if (w1*h1*3>OGLTEXBUFSIZE)
1072                 Error("ogl_ubitblt_tolinear: screen res larger than OGLTEXBUFSIZE\n");
1073
1074         if (ogl_readpixels_ok>0){
1075                 OGL_DISABLE(TEXTURE_2D);
1076                 glReadBuffer(GL_FRONT);
1077                 glReadPixels(0,0,w1,h1,GL_RGB,GL_UNSIGNED_BYTE,texbuf);
1078 //              glReadPixels(sx,grd_curscreen->sc_h-(sy+h),w,h,GL_RGB,GL_UNSIGNED_BYTE,texbuf);
1079 //              glReadPixels(sx,sy,w+sx,h+sy,GL_RGB,GL_UNSIGNED_BYTE,texbuf);
1080         }else
1081                 memset(texbuf,0,w1*h1*3);
1082         sx+=src->bm_x;
1083         sy+=src->bm_y;
1084         for (i=0;i<h;i++){
1085                 d=dest->bm_data+dx+(dy+i)*dest->bm_rowsize;
1086                 s=texbuf+((h1-(i+sy+1))*w1+sx)*3;
1087                 for (j=0;j<w;j++){
1088                         *d=gr_find_closest_color(s[0]/4,s[1]/4,s[2]/4);
1089                         s+=3;
1090                         d++;
1091                 }
1092         }
1093 #else
1094         int i,j,c=0;
1095         unsigned char *d,*s,*e;
1096         if (w*h*3>OGLTEXBUFSIZE)
1097                 Error("ogl_ubitblt_tolinear: size larger than OGLTEXBUFSIZE\n");
1098         sx+=src->bm_x;
1099         sy+=src->bm_y;
1100 #if 1//also seems to cause a mess.  need to look into it a bit more..
1101         if (ogl_readpixels_ok>0){
1102                 OGL_DISABLE(TEXTURE_2D);
1103                 glReadBuffer(GL_FRONT);
1104 //              glReadPixels(0,0,w,h,GL_RGB,GL_UNSIGNED_BYTE,texbuf);
1105                 glReadPixels(sx,grd_curscreen->sc_h-(sy+h),w,h,GL_RGB,GL_UNSIGNED_BYTE,texbuf);
1106         }else
1107 #endif
1108                 memset(texbuf,0,w*h*3);
1109 //      d=dest->bm_data+dx+(dy+i)*dest->bm_rowsize;
1110         d=dest->bm_data+dx+dy*dest->bm_rowsize;
1111         for (i=0;i<h;i++){
1112                 s=texbuf+w*(h-(i+1))*3;
1113 //              s=texbuf+w*i*3;
1114                 if (s<texbuf){Error("blah1\n");}
1115                 if (d<dest->bm_data){Error("blah3\n");}
1116 //              d=dest->bm_data+(i*dest->bm_rowsize);
1117
1118                 e=d;
1119                 for (j=0;j<w;j++){
1120                         if (s>texbuf+w*h*3-3){Error("blah2\n");}
1121                         if (d>dest->bm_data+dest->bm_rowsize*(h+dy)+dx  ){Error("blah4\n");}
1122                         *d=gr_find_closest_color(s[0]/4,s[1]/4,s[2]/4);
1123                         s+=3;
1124                         d++;
1125                         c++;
1126                 }
1127                 d=e;
1128                 d+=dest->bm_rowsize;
1129         }
1130         glmprintf((0,"c=%i w*h=%i\n",c,w*h));
1131 #endif
1132         return 0;
1133 }
1134
1135 bool ogl_ubitblt_copy(int w,int h,int dx,int dy, int sx, int sy, grs_bitmap * src, grs_bitmap * dest){
1136 #if 0 //just seems to cause a mess.
1137         GLfloat xo,yo;//,xs,ys;
1138
1139         dx+=dest->bm_x;
1140         dy+=dest->bm_y;
1141
1142 //      xo=dx/(float)last_width;
1143         xo=dx/(float)grd_curscreen->sc_w;
1144 //      yo=1.0-(dy+h)/(float)last_height;
1145         yo=1.0-(dy+h)/(float)grd_curscreen->sc_h;
1146         sx+=src->bm_x;
1147         sy+=src->bm_y;
1148         OGL_DISABLE(TEXTURE_2D);
1149         glReadBuffer(GL_FRONT);
1150         glRasterPos2f(xo,yo);
1151 //      glReadPixels(0,0,w,h,GL_RGB,GL_UNSIGNED_BYTE,texbuf);
1152         glCopyPixels(sx,grd_curscreen->sc_h-(sy+h),w,h,GL_COLOR);
1153         glRasterPos2f(0,0);
1154 #endif
1155         return 0;
1156 }
1157
1158 void ogl_start_frame(void){
1159         r_polyc=0;r_tpolyc=0;r_bitmapc=0;r_ubitmapc=0;r_ubitbltc=0;r_upixelc=0;
1160 //      gl_badtexture=500;
1161
1162         OGL_VIEWPORT(grd_curcanv->cv_bitmap.bm_x,grd_curcanv->cv_bitmap.bm_y,Canvas_width,Canvas_height);
1163         glClearColor(0.0, 0.0, 0.0, 0.0);
1164 //      glEnable(GL_ALPHA_TEST);
1165 //      glAlphaFunc(GL_GREATER,0.01);
1166         glShadeModel(GL_SMOOTH);
1167         glMatrixMode(GL_PROJECTION);
1168         glLoadIdentity();//clear matrix
1169         //gluPerspective(90.0,(GLfloat)(grd_curscreen->sc_w*3)/(GLfloat)(grd_curscreen->sc_h*4),1.0,1000000.0);
1170         //gluPerspective(90.0,(GLfloat)(grd_curscreen->sc_w*3)/(GLfloat)(grd_curscreen->sc_h*4),0.01,1000000.0);
1171         gluPerspective(90.0,1.0,0.01,1000000.0);
1172         //gluPerspective(90.0,(GLfloat)(Canvas_width*3)/(GLfloat)(Canvas_height*4),0.01,1000000.0);
1173 //      gluPerspective(75.0,(GLfloat)Canvas_width/(GLfloat)Canvas_height,1.0,1000000.0);
1174         glMatrixMode(GL_MODELVIEW);
1175         glLoadIdentity();//clear matrix
1176         glEnable(GL_BLEND);
1177         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1178 //      glDisABLE(DITHER);
1179 //      glScalef(1.0,1.0,-1.0);
1180 //      glScalef(1.0,1.0,-1.0);
1181 //      glPushMatrix();
1182
1183 //      glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
1184 //      OGL_TEXENV(GL_TEXTURE_ENV_MODE,GL_MODULATE);
1185 //      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_texmagfilt);
1186 //      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_texminfilt);
1187 //      OGL_TEXPARAM(GL_TEXTURE_MAG_FILTER,GL_texmagfilt);
1188 //      OGL_TEXPARAM(GL_TEXTURE_MIN_FILTER,GL_texminfilt);
1189 //      glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
1190 //      glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
1191 }
1192 #ifndef NMONO
1193 void merge_textures_stats(void);
1194 #endif
1195 void ogl_end_frame(void){
1196 //      OGL_VIEWPORT(grd_curcanv->cv_bitmap.bm_x,grd_curcanv->cv_bitmap.bm_y,);
1197         OGL_VIEWPORT(0,0,grd_curscreen->sc_w,grd_curscreen->sc_h);
1198 #ifndef NMONO
1199 //      merge_textures_stats();
1200 //      ogl_texture_stats();
1201 #endif
1202 //      glViewport(0,0,grd_curscreen->sc_w,grd_curscreen->sc_h);
1203         glMatrixMode(GL_PROJECTION);
1204         glLoadIdentity();//clear matrix
1205         glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
1206         glMatrixMode(GL_MODELVIEW);
1207         glLoadIdentity();//clear matrix
1208 //      glDisABLE(BLEND);
1209         //glDisABLE(ALPHA_TEST);
1210         //gluPerspective(90.0,(GLfloat)(grd_curscreen->sc_w*3)/(GLfloat)(grd_curscreen->sc_h*4),1.0,1000000.0);
1211 //      ogl_swap_buffers();//platform specific code
1212 //      glClear(GL_COLOR_BUFFER_BIT);
1213
1214 }
1215 void ogl_swap_buffers(void){
1216         ogl_clean_texture_cache();
1217         if (gr_renderstats){
1218                 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);
1219 //      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
1220         }
1221         ogl_do_palfx();
1222         ogl_swap_buffers_internal();
1223         glClear(GL_COLOR_BUFFER_BIT);
1224 }
1225
1226 int tex_format_supported(int iformat,int format){
1227         switch (iformat){
1228                 case GL_INTENSITY4:
1229                         if (!ogl_intensity4_ok) return 0; break;
1230                 case GL_LUMINANCE4_ALPHA4:
1231                         if (!ogl_luminance4_alpha4_ok) return 0; break;
1232                 case GL_RGBA2:
1233                         if (!ogl_rgba2_ok) return 0; break;
1234         }
1235         if (ogl_gettexlevelparam_ok){
1236                 GLint internalFormat;
1237                 glTexImage2D(GL_PROXY_TEXTURE_2D, 0, iformat, 64, 64, 0,
1238                                 format, GL_UNSIGNED_BYTE, texbuf);//NULL?
1239                 glGetTexLevelParameteriv(GL_PROXY_TEXTURE_2D, 0,
1240                                 GL_TEXTURE_INTERNAL_FORMAT,
1241                                 &internalFormat);
1242                 return (internalFormat==iformat);
1243         }else
1244                 return 1;
1245 }
1246
1247 //little hack to find the largest or equal multiple of 2 for a given number
1248 int pow2ize(int x){
1249         int i;
1250         for (i=2;i<=4096;i*=2)
1251                 if (x<=i) return i;
1252         return i;
1253 }
1254
1255 //GLubyte texbuf[512*512*4];
1256 GLubyte texbuf[OGLTEXBUFSIZE];
1257 void ogl_filltexbuf(unsigned char *data,GLubyte *texp,int truewidth,int width,int height,int dxo,int dyo,int twidth,int theight,int type)
1258 {
1259 //      GLushort *tex=(GLushort *)texp;
1260         int x,y,c,i;
1261         if (twidth*theight*4>sizeof(texbuf))//shouldn't happen, descent never uses textures that big.
1262                 Error("texture toobig %i %i",twidth,theight);
1263
1264         i=0;
1265         for (y=0;y<theight;y++){
1266                 i=dxo+truewidth*(y+dyo);
1267                 for (x=0;x<twidth;x++){
1268                         if (x<width && y<height)
1269                                 c=data[i++];
1270                         else
1271                                 c=255;//fill the pad space with transparancy
1272                         if (c==255){
1273                                 switch (type){
1274                                         case GL_LUMINANCE:
1275                                                 (*(texp++))=0;
1276                                                 break;
1277                                         case GL_LUMINANCE_ALPHA:
1278                                                 (*(texp++))=0;
1279                                                 (*(texp++))=0;
1280                                                 break;
1281                                         case GL_RGBA:
1282                                                 (*(texp++))=0;
1283                                                 (*(texp++))=0;
1284                                                 (*(texp++))=0;
1285                                                 (*(texp++))=0;//transparent pixel
1286                                                 break;
1287                                 }
1288 //                              (*(tex++))=0;
1289                         }else{
1290                                 switch (type){
1291                                         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. :)
1292                                                 (*(texp++))=255;
1293                                                 break;
1294                                         case GL_LUMINANCE_ALPHA:
1295                                                 (*(texp++))=255;
1296                                                 (*(texp++))=255;
1297                                                 break;
1298                                         case GL_RGBA:
1299                                                 //(*(texp++))=gr_palette[c*3]*4;
1300                                                 //(*(texp++))=gr_palette[c*3+1]*4;
1301                                                 //(*(texp++))=gr_palette[c*3+2]*4;
1302                                                 (*(texp++))=ogl_pal[c*3]*4;
1303                                                 (*(texp++))=ogl_pal[c*3+1]*4;
1304                                                 (*(texp++))=ogl_pal[c*3+2]*4;
1305                                                 (*(texp++))=255;//not transparent
1306                                                 //                              (*(tex++))=(ogl_pal[c*3]>>1) + ((ogl_pal[c*3+1]>>1)<<5) + ((ogl_pal[c*3+2]>>1)<<10) + (1<<15);
1307                                                 break;
1308                                 }
1309                         }
1310                 }
1311         }
1312 }
1313 int tex_format_verify(ogl_texture *tex){
1314         while (!tex_format_supported(tex->internalformat,tex->format)){
1315                 glmprintf((0,"tex format %x not supported",tex->internalformat));
1316                 switch (tex->internalformat){
1317                         case GL_INTENSITY4:
1318                                 if (ogl_luminance4_alpha4_ok){
1319                                         tex->internalformat=GL_LUMINANCE4_ALPHA4;
1320                                         tex->format=GL_LUMINANCE_ALPHA;
1321                                         break;
1322                                 }//note how it will fall through here if the statement is false
1323                         case GL_LUMINANCE4_ALPHA4:
1324                                 if (ogl_rgba2_ok){
1325                                         tex->internalformat=GL_RGBA2;
1326                                         tex->format=GL_RGBA;
1327                                         break;
1328                                 }//note how it will fall through here if the statement is false
1329                         case GL_RGBA2:
1330                                 tex->internalformat=ogl_rgba_format;
1331                                 tex->format=GL_RGBA;
1332                                 break;
1333                         default:
1334                                 mprintf((0,"...no tex format to fall back on\n"));
1335                                 return 1;
1336                 }
1337                 glmprintf((0,"...falling back to %x\n",tex->internalformat));
1338         }
1339         return 0;
1340 }
1341 void tex_set_size1(ogl_texture *tex,int dbits,int bits,int w, int h){
1342         int u;
1343         if (tex->tw!=w || tex->th!=h){
1344                 u=(tex->w/(float)tex->tw*w) * (tex->h/(float)tex->th*h);
1345                 glmprintf((0,"shrunken texture?\n"));
1346         }else
1347                 u=tex->w*tex->h;
1348         if (bits<=0){//the beta nvidia GLX server. doesn't ever return any bit sizes, so just use some assumptions.
1349                 tex->bytes=((float)w*h*dbits)/8.0;
1350                 tex->bytesu=((float)u*dbits)/8.0;
1351         }else{
1352                 tex->bytes=((float)w*h*bits)/8.0;
1353                 tex->bytesu=((float)u*bits)/8.0;
1354         }
1355         glmprintf((0,"tex_set_size1: %ix%i, %ib(%i) %iB\n",w,h,bits,dbits,tex->bytes));
1356 }
1357 void tex_set_size(ogl_texture *tex){
1358         GLint w,h;
1359         int bi=16,a=0;
1360         if (ogl_gettexlevelparam_ok){
1361                 GLint t;
1362                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_WIDTH,&w);
1363                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_HEIGHT,&h);
1364                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_LUMINANCE_SIZE,&t);a+=t;
1365                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_INTENSITY_SIZE,&t);a+=t;
1366                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_RED_SIZE,&t);a+=t;
1367                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_GREEN_SIZE,&t);a+=t;
1368                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_BLUE_SIZE,&t);a+=t;
1369                 glGetTexLevelParameteriv(GL_TEXTURE_2D,0,GL_TEXTURE_ALPHA_SIZE,&t);a+=t;
1370         }else{
1371                 w=tex->tw;
1372                 h=tex->th;
1373         }
1374         switch (tex->format){
1375                 case GL_LUMINANCE:
1376                         bi=8;
1377                         break;
1378                 case GL_LUMINANCE_ALPHA:
1379                         bi=8;
1380                         break;
1381                 case GL_RGBA:
1382                         bi=16;
1383                         break;
1384                 default:
1385                         Error("tex_set_size unknown texformat\n");
1386                         break;
1387         }
1388         tex_set_size1(tex,bi,a,w,h);
1389 }
1390 //loads a palettized bitmap into a ogl RGBA texture.
1391 //Sizes and pads dimensions to multiples of 2 if necessary.
1392 //In theory this could be a problem for repeating textures, but all real
1393 //textures (not sprites, etc) in descent are 64x64, so we are ok.
1394 //stores OpenGL textured id in *texid and u/v values required to get only the real data in *u/*v
1395 void ogl_loadtexture(unsigned char * data, int dxo,int dyo, ogl_texture *tex)
1396 {
1397 //void ogl_loadtexture(unsigned char * data, int width, int height,int dxo,int dyo, int *texid,float *u,float *v,char domipmap,float prio){
1398 //      int internalformat=GL_RGBA;
1399 //      int format=GL_RGBA;
1400         //int filltype=0;
1401         tex->tw=pow2ize(tex->w);tex->th=pow2ize(tex->h);//calculate smallest texture size that can accomodate us (must be multiples of 2)
1402 //      tex->tw=tex->w;tex->th=tex->h;//feeling lucky?
1403
1404         if(gr_badtexture>0) return;
1405
1406 #if !(defined(__APPLE__) && defined(__MACH__))
1407         // always fails on OS X, but textures work fine!
1408         if (tex_format_verify(tex))
1409                 return;
1410 #endif
1411
1412         //calculate u/v values that would make the resulting texture correctly sized
1413         tex->u=(float)tex->w/(float)tex->tw;
1414         tex->v=(float)tex->h/(float)tex->th;
1415
1416         //      if (width!=twidth || height!=theight)
1417         //              glmprintf((0,"sizing %ix%i texture up to %ix%i\n",width,height,twidth,theight));
1418         ogl_filltexbuf(data,texbuf,tex->lw,tex->w,tex->h,dxo,dyo,tex->tw,tex->th,tex->format);
1419
1420         // Generate OpenGL texture IDs.
1421         glGenTextures(1, &tex->handle);
1422
1423         //set priority
1424         glPrioritizeTextures(1,&tex->handle,&tex->prio);
1425
1426         // Give our data to OpenGL.
1427
1428         OGL_BINDTEXTURE(tex->handle);
1429
1430         glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
1431         if (tex->wantmip){
1432                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_texmagfilt);
1433                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_texminfilt);
1434         }else{
1435                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
1436                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
1437         }
1438 //      domipmap=0;//mipmaps aren't used in GL_NEAREST anyway, and making the mipmaps is pretty slow
1439         //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.
1440
1441         if (tex->wantmip && GL_needmipmaps)
1442                 gluBuild2DMipmaps( GL_TEXTURE_2D, tex->internalformat, tex->tw,
1443                                 tex->th, tex->format, GL_UNSIGNED_BYTE, texbuf);
1444         else
1445                 glTexImage2D(GL_TEXTURE_2D, 0, tex->internalformat,
1446                         tex->tw, tex->th, 0, tex->format, // RGBA textures.
1447                         GL_UNSIGNED_BYTE, // imageData is a GLubyte pointer.
1448                         texbuf);
1449
1450         tex_set_size(tex);
1451
1452         r_texcount++;
1453         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));
1454
1455 }
1456
1457 unsigned char decodebuf[512*512];
1458
1459 void ogl_loadbmtexture_m(grs_bitmap *bm,int domipmap)
1460 {
1461         unsigned char *buf;
1462         while (bm->bm_parent)
1463                 bm=bm->bm_parent;
1464         buf=bm->bm_data;
1465         if (bm->gltexture==NULL){
1466                 ogl_init_texture(bm->gltexture=ogl_get_free_texture());
1467                 bm->gltexture->lw=bm->bm_w;
1468                 bm->gltexture->w=bm->bm_w;
1469                 bm->gltexture->h=bm->bm_h;
1470                 bm->gltexture->wantmip=domipmap;
1471         }
1472         else {
1473                 if (bm->gltexture->handle>0)
1474                         return;
1475                 if (bm->gltexture->w==0){
1476                         bm->gltexture->lw=bm->bm_w;
1477                         bm->gltexture->w=bm->bm_w;
1478                         bm->gltexture->h=bm->bm_h;
1479                 }
1480         }
1481         if (bm->bm_flags & BM_FLAG_RLE){
1482                 unsigned char * dbits;
1483                 unsigned char * sbits;
1484                 int i, data_offset;
1485
1486                 data_offset = 1;
1487                 if (bm->bm_flags & BM_FLAG_RLE_BIG)
1488                         data_offset = 2;
1489
1490                 sbits = &bm->bm_data[4 + (bm->bm_h * data_offset)];
1491                 dbits = decodebuf;
1492
1493                 for (i=0; i < bm->bm_h; i++ )    {
1494                         gr_rle_decode(sbits,dbits);
1495                         if ( bm->bm_flags & BM_FLAG_RLE_BIG )
1496                                 sbits += (int)INTEL_SHORT(*((short *)&(bm->bm_data[4+(i*data_offset)])));
1497                         else
1498                                 sbits += (int)bm->bm_data[4+i];
1499                         dbits += bm->bm_w;
1500                 }
1501                 buf=decodebuf;
1502         }
1503         ogl_loadtexture(buf,0,0,bm->gltexture);
1504 }
1505
1506 void ogl_loadbmtexture(grs_bitmap *bm)
1507 {
1508         ogl_loadbmtexture_m(bm,1);
1509 }
1510
1511 void ogl_freetexture(ogl_texture *gltexture)
1512 {
1513         if (gltexture->handle>0) {
1514                 r_texcount--;
1515                 glmprintf((0,"ogl_freetexture(%p):%i (last rend %is) (%i left)\n",gltexture,gltexture->handle,(GameTime-gltexture->lastrend)/f1_0,r_texcount));
1516                 glDeleteTextures( 1, &gltexture->handle );
1517 //              gltexture->handle=0;
1518                 ogl_init_texture(gltexture);
1519         }
1520 }
1521 void ogl_freebmtexture(grs_bitmap *bm){
1522         if (bm->gltexture){
1523                 ogl_freetexture(bm->gltexture);
1524                 bm->gltexture=NULL;
1525 //              r_texcount--;
1526 //              glmprintf((0,"ogl_freebmtexture(%p,%p):%i (%i left)\n",bm->bm_data,&bm->gltexture,bm->gltexture,r_texcount));
1527 //              glDeleteTextures( 1, &bm->gltexture );
1528 //              bm->gltexture=-1;
1529         }
1530 }