video/ogl.c

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