gl_textures.c

   1
   2 #include "quakedef.h"
   3 #include "image.h"
   4 #include "jpeg.h"
   5
   6 cvar_t  r_max_size = {CVAR_SAVE, "r_max_size", "2048"};
   7 cvar_t  r_max_scrapsize = {CVAR_SAVE, "r_max_scrapsize", "256"};
   8 cvar_t  r_picmip = {CVAR_SAVE, "r_picmip", "0"};
   9 cvar_t  r_lerpimages = {CVAR_SAVE, "r_lerpimages", "1"};
  10 cvar_t  r_precachetextures = {CVAR_SAVE, "r_precachetextures", "1"};
  11
  12 int             gl_filter_min = GL_LINEAR_MIPMAP_LINEAR;
  13 int             gl_filter_mag = GL_LINEAR;
  14
  15
  16 static mempool_t *texturemempool;
  17 static mempool_t *texturedatamempool;
  18 static mempool_t *textureprocessingmempool;
  19
  20 // note: this must not conflict with TEXF_ flags in r_textures.h
  21 // cleared when a texture is uploaded
  22 #define GLTEXF_UPLOAD 0x00010000
  23 // bitmask for mismatch checking
  24 #define GLTEXF_IMPORTANTBITS (0)
  25 // set when image is uploaded and freed
  26 #define GLTEXF_DESTROYED 0x00040000
  27
  28 // size of images which hold fragment textures, ignores picmip and max_size
  29 static int block_size;
  30
  31 typedef struct
  32 {
  33         int textype;
  34         int inputbytesperpixel;
  35         int internalbytesperpixel;
  36         int glformat;
  37         int glinternalformat;
  38 }
  39 textypeinfo_t;
  40
  41 static textypeinfo_t textype_palette       = {TEXTYPE_PALETTE, 1, 4, GL_RGBA, 3};
  42 static textypeinfo_t textype_rgb           = {TEXTYPE_RGB    , 3, 3, GL_RGB , 3};
  43 static textypeinfo_t textype_rgba          = {TEXTYPE_RGBA   , 4, 4, GL_RGBA, 3};
  44 static textypeinfo_t textype_palette_alpha = {TEXTYPE_PALETTE, 1, 4, GL_RGBA, 4};
  45 static textypeinfo_t textype_rgba_alpha    = {TEXTYPE_RGBA   , 4, 4, GL_RGBA, 4};
  46
  47 // a tiling texture (most common type)
  48 #define GLIMAGETYPE_TILE 0
  49 // a fragments texture (contains one or more fragment textures)
  50 #define GLIMAGETYPE_FRAGMENTS 1
  51
  52 #define GLTEXTURETYPE_1D 0
  53 #define GLTEXTURETYPE_2D 1
  54 #define GLTEXTURETYPE_3D 2
  55 #define GLTEXTURETYPE_CUBEMAP 3
  56
  57 static int gltexturetypeenums[4] = {GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP_ARB};
  58 static int gltexturetypebindingenums[4] = {GL_TEXTURE_BINDING_1D, GL_TEXTURE_BINDING_2D, GL_TEXTURE_BINDING_3D, GL_TEXTURE_BINDING_CUBE_MAP_ARB};
  59 static int gltexturetypedimensions[4] = {1, 2, 3, 2};
  60 static int cubemapside[6] =
  61 {
  62         GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB,
  63         GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB,
  64         GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB,
  65         GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB,
  66         GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB,
  67         GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
  68 };
  69
  70 // a gltextureimage can have one (or more if fragments) gltextures inside
  71 typedef struct gltextureimage_s
  72 {
  73         struct gltextureimage_s *imagechain;
  74         int texturecount;
  75         int type; // one of the GLIMAGETYPE_ values
  76         int texturetype; // one of the GLTEXTURETYPE_ values
  77         int sides; // 1 or 6 depending on texturetype
  78         int texnum; // GL texture slot number
  79         int width, height, depth; // 3D texture support
  80         int bytesperpixel; // bytes per pixel
  81         int glformat; // GL_RGB or GL_RGBA
  82         int glinternalformat; // 3 or 4
  83         int flags;
  84         short *blockallocation; // fragment allocation (2D only)
  85 }
  86 gltextureimage_t;
  87
  88 typedef struct gltexture_s
  89 {
  90         // this field is exposed to the R_GetTexture macro, for speed reasons
  91         // (must be identical in rtexture_t)
  92         int texnum; // GL texture slot number
  93
  94         // pointer to texturepool (check this to see if the texture is allocated)
  95         struct gltexturepool_s *pool;
  96         // pointer to next texture in texturepool chain
  97         struct gltexture_s *chain;
  98         // pointer into gltextureimage array
  99         gltextureimage_t *image;
 100         // name of the texture (this might be removed someday), no duplicates
 101         char *identifier;
 102         // location in the image, and size
 103         int x, y, z, width, height, depth;
 104         // copy of the original texture(s) supplied to the upload function, for
 105         // delayed uploads (non-precached)
 106         qbyte *inputtexels;
 107         // original data size in *inputtexels
 108         int inputdatasize;
 109         // flags supplied to the LoadTexture function
 110         // (might be altered to remove TEXF_ALPHA), and GLTEXF_ private flags
 111         int flags;
 112         // pointer to one of the textype_ structs
 113         textypeinfo_t *textype;
 114         // one of the GLTEXTURETYPE_ values
 115         int texturetype;
 116         // palette if the texture is TEXTYPE_PALETTE
 117         const unsigned int *palette;
 118 }
 119 gltexture_t;
 120
 121 #define TEXTUREPOOL_SENTINEL 0xC0DEDBAD
 122
 123 typedef struct gltexturepool_s
 124 {
 125         unsigned int sentinel;
 126         struct gltextureimage_s *imagechain;
 127         struct gltexture_s *gltchain;
 128         struct gltexturepool_s *next;
 129 }
 130 gltexturepool_t;
 131
 132 static gltexturepool_t *gltexturepoolchain = NULL;
 133
 134 static qbyte *resizebuffer = NULL, *colorconvertbuffer;
 135 static int resizebuffersize = 0;
 136 static qbyte *texturebuffer;
 137 static int texturebuffersize = 0;
 138
 139 static int realmaxsize = 0;
 140
 141 static textypeinfo_t *R_GetTexTypeInfo(int textype, int flags)
 142 {
 143         if (flags & TEXF_ALPHA)
 144         {
 145                 switch(textype)
 146                 {
 147                 case TEXTYPE_PALETTE:
 148                         return &textype_palette_alpha;
 149                 case TEXTYPE_RGB:
 150                         Host_Error("R_GetTexTypeInfo: RGB format has no alpha, TEXF_ALPHA not allowed\n");
 151                         return NULL;
 152                 case TEXTYPE_RGBA:
 153                         return &textype_rgba_alpha;
 154                 default:
 155                         Host_Error("R_GetTexTypeInfo: unknown texture format\n");
 156                         return NULL;
 157                 }
 158         }
 159         else
 160         {
 161                 switch(textype)
 162                 {
 163                 case TEXTYPE_PALETTE:
 164                         return &textype_palette;
 165                 case TEXTYPE_RGB:
 166                         return &textype_rgb;
 167                 case TEXTYPE_RGBA:
 168                         return &textype_rgba;
 169                 default:
 170                         Host_Error("R_GetTexTypeInfo: unknown texture format\n");
 171                         return NULL;
 172                 }
 173         }
 174 }
 175
 176 static void R_UploadTexture(gltexture_t *t);
 177
 178 static void R_PrecacheTexture(gltexture_t *glt)
 179 {
 180         int precache;
 181         precache = false;
 182         if (glt->flags & TEXF_ALWAYSPRECACHE)
 183                 precache = true;
 184         else if (r_precachetextures.integer >= 2)
 185                 precache = true;
 186         else if (r_precachetextures.integer >= 1)
 187                 if (glt->flags & TEXF_PRECACHE)
 188                         precache = true;
 189
 190         if (precache)
 191                 R_UploadTexture(glt);
 192 }
 193
 194 int R_RealGetTexture(rtexture_t *rt)
 195 {
 196         if (rt)
 197         {
 198                 gltexture_t *glt;
 199                 glt = (gltexture_t *)rt;
 200                 if (glt->flags & GLTEXF_UPLOAD)
 201                         R_UploadTexture(glt);
 202                 glt->texnum = glt->image->texnum;
 203                 return glt->image->texnum;
 204         }
 205         else
 206                 return 0;
 207 }
 208
 209 void R_FreeTexture(rtexture_t *rt)
 210 {
 211         gltexture_t *glt, **gltpointer;
 212         gltextureimage_t *image, **gltimagepointer;
 213
 214         glt = (gltexture_t *)rt;
 215         if (glt == NULL)
 216                 Host_Error("R_FreeTexture: texture == NULL\n");
 217
 218         for (gltpointer = &glt->pool->gltchain;*gltpointer && *gltpointer != glt;gltpointer = &(*gltpointer)->chain);
 219         if (*gltpointer == glt)
 220                 *gltpointer = glt->chain;
 221         else
 222                 Host_Error("R_FreeTexture: texture \"%s\" not linked in pool\n", glt->identifier);
 223
 224         // note: if freeing a fragment texture, this will not make the claimed
 225         // space available for new textures unless all other fragments in the
 226         // image are also freed
 227         if (glt->image)
 228         {
 229                 image = glt->image;
 230                 image->texturecount--;
 231                 if (image->texturecount < 1)
 232                 {
 233                         for (gltimagepointer = &glt->pool->imagechain;*gltimagepointer && *gltimagepointer != image;gltimagepointer = &(*gltimagepointer)->imagechain);
 234                         if (*gltimagepointer == image)
 235                                 *gltimagepointer = image->imagechain;
 236                         else
 237                                 Host_Error("R_FreeTexture: image not linked in pool\n");
 238                         if (image->texnum)
 239                                 qglDeleteTextures(1, &image->texnum);
 240                         if (image->blockallocation)
 241                                 Mem_Free(image->blockallocation);
 242                         Mem_Free(image);
 243                 }
 244         }
 245
 246         if (glt->identifier)
 247                 Mem_Free(glt->identifier);
 248         if (glt->inputtexels)
 249                 Mem_Free(glt->inputtexels);
 250         Mem_Free(glt);
 251 }
 252
 253 /*
 254 static gltexture_t *R_FindTexture (gltexturepool_t *pool, char *identifier)
 255 {
 256         gltexture_t     *glt;
 257
 258         if (!identifier)
 259                 return NULL;
 260
 261         for (glt = pool->gltchain;glt;glt = glt->chain)
 262                 if (glt->identifier && !strcmp (identifier, glt->identifier))
 263                         return glt;
 264
 265         return NULL;
 266 }
 267 */
 268
 269 rtexturepool_t *R_AllocTexturePool(void)
 270 {
 271         gltexturepool_t *pool;
 272         if (texturemempool == NULL)
 273                 return NULL;
 274         pool = Mem_Alloc(texturemempool, sizeof(gltexturepool_t));
 275         if (pool == NULL)
 276                 return NULL;
 277         pool->next = gltexturepoolchain;
 278         gltexturepoolchain = pool;
 279         pool->sentinel = TEXTUREPOOL_SENTINEL;
 280         return (rtexturepool_t *)pool;
 281 }
 282
 283 void R_FreeTexturePool(rtexturepool_t **rtexturepool)
 284 {
 285         gltexturepool_t *pool, **poolpointer;
 286         if (rtexturepool == NULL)
 287                 return;
 288         if (*rtexturepool == NULL)
 289                 return;
 290         pool = (gltexturepool_t *)(*rtexturepool);
 291         *rtexturepool = NULL;
 292         if (pool->sentinel != TEXTUREPOOL_SENTINEL)
 293                 Host_Error("R_FreeTexturePool: pool already freed\n");
 294         for (poolpointer = &gltexturepoolchain;*poolpointer && *poolpointer != pool;poolpointer = &(*poolpointer)->next);
 295         if (*poolpointer == pool)
 296                 *poolpointer = pool->next;
 297         else
 298                 Host_Error("R_FreeTexturePool: pool not linked\n");
 299         while (pool->gltchain)
 300                 R_FreeTexture((rtexture_t *)pool->gltchain);
 301         if (pool->imagechain)
 302                 Sys_Error("R_FreeTexturePool: not all images freed\n");
 303         Mem_Free(pool);
 304 }
 305
 306
 307 typedef struct
 308 {
 309         char *name;
 310         int minification, magnification;
 311 }
 312 glmode_t;
 313
 314 static glmode_t modes[] =
 315 {
 316         {"GL_NEAREST", GL_NEAREST, GL_NEAREST},
 317         {"GL_LINEAR", GL_LINEAR, GL_LINEAR},
 318         {"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST},
 319         {"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR},
 320         {"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST},
 321         {"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
 322 };
 323
 324 static void GL_TextureMode_f (void)
 325 {
 326         int i;
 327         GLint oldbindtexnum;
 328         gltextureimage_t *image;
 329         gltexturepool_t *pool;
 330
 331         if (Cmd_Argc() == 1)
 332         {
 333                 for (i = 0;i < 6;i++)
 334                 {
 335                         if (gl_filter_min == modes[i].minification)
 336                         {
 337                                 Con_Printf ("%s\n", modes[i].name);
 338                                 return;
 339                         }
 340                 }
 341                 Con_Printf ("current filter is unknown???\n");
 342                 return;
 343         }
 344
 345         for (i = 0;i < 6;i++)
 346                 if (!strcasecmp (modes[i].name, Cmd_Argv(1) ) )
 347                         break;
 348         if (i == 6)
 349         {
 350                 Con_Printf ("bad filter name\n");
 351                 return;
 352         }
 353
 354         gl_filter_min = modes[i].minification;
 355         gl_filter_mag = modes[i].magnification;
 356
 357         // change all the existing mipmap texture objects
 358         // FIXME: force renderer(/client/something?) restart instead?
 359         for (pool = gltexturepoolchain;pool;pool = pool->next)
 360         {
 361                 for (image = pool->imagechain;image;image = image->imagechain)
 362                 {
 363                         // only update already uploaded images
 364                         if (!(image->flags & GLTEXF_UPLOAD))
 365                         {
 366                                 qglGetIntegerv(gltexturetypebindingenums[image->texturetype], &oldbindtexnum);
 367                                 qglBindTexture(gltexturetypeenums[image->texturetype], image->texnum);
 368                                 if (image->flags & TEXF_MIPMAP)
 369                                         qglTexParameteri(gltexturetypeenums[image->texturetype], GL_TEXTURE_MIN_FILTER, gl_filter_min);
 370                                 else
 371                                         qglTexParameteri(gltexturetypeenums[image->texturetype], GL_TEXTURE_MIN_FILTER, gl_filter_mag);
 372                                 qglTexParameteri(gltexturetypeenums[image->texturetype], GL_TEXTURE_MAG_FILTER, gl_filter_mag);
 373                                 qglBindTexture(gltexturetypeenums[image->texturetype], oldbindtexnum);
 374                         }
 375                 }
 376         }
 377 }
 378
 379 static int R_CalcTexelDataSize (gltexture_t *glt)
 380 {
 381         int width2, height2, depth2, size;
 382         if (glt->flags & TEXF_FRAGMENT)
 383                 size = glt->width * glt->height * glt->depth;
 384         else
 385         {
 386                 if (r_max_size.integer > realmaxsize)
 387                         Cvar_SetValue("r_max_size", realmaxsize);
 388                 // calculate final size
 389                 for (width2 = 1;width2 < glt->width;width2 <<= 1);
 390                 for (height2 = 1;height2 < glt->height;height2 <<= 1);
 391                 for (depth2 = 1;depth2 < glt->depth;depth2 <<= 1);
 392                 for (width2 >>= r_picmip.integer;width2 > r_max_size.integer;width2 >>= 1);
 393                 for (height2 >>= r_picmip.integer;height2 > r_max_size.integer;height2 >>= 1);
 394                 for (depth2 >>= r_picmip.integer;depth2 > r_max_size.integer;depth2 >>= 1);
 395                 if (width2 < 1) width2 = 1;
 396                 if (height2 < 1) height2 = 1;
 397                 if (depth2 < 1) depth2 = 1;
 398
 399                 size = 0;
 400                 if (glt->flags & TEXF_MIPMAP)
 401                 {
 402                         while (width2 > 1 || height2 > 1 || depth2 > 1)
 403                         {
 404                                 size += width2 * height2 * depth2;
 405                                 if (width2 > 1)
 406                                         width2 >>= 1;
 407                                 if (height2 > 1)
 408                                         height2 >>= 1;
 409                                 if (depth2 > 1)
 410                                         depth2 >>= 1;
 411                         }
 412                         size++; // count the last 1x1 mipmap
 413                 }
 414                 else
 415                         size = width2 * height2 * depth2;
 416         }
 417         size *= glt->textype->internalbytesperpixel * glt->image->sides;
 418
 419         return size;
 420 }
 421
 422 void R_TextureStats_PrintTotal(void)
 423 {
 424         int glsize, total = 0, totalt = 0, totalp = 0, loaded = 0, loadedt = 0, loadedp = 0;
 425         gltexture_t *glt;
 426         gltexturepool_t *pool;
 427         for (pool = gltexturepoolchain;pool;pool = pool->next)
 428         {
 429                 for (glt = pool->gltchain;glt;glt = glt->chain)
 430                 {
 431                         glsize = R_CalcTexelDataSize(glt);
 432                         total++;
 433                         totalt += glsize;
 434                         totalp += glt->inputdatasize;
 435                         if (!(glt->flags & GLTEXF_UPLOAD))
 436                         {
 437                                 loaded++;
 438                                 loadedt += glsize;
 439                                 loadedp += glt->inputdatasize;
 440                         }
 441                 }
 442         }
 443         Con_Printf("total: %i (%.3fMB, %.3fMB original), uploaded %i (%.3fMB, %.3fMB original), upload on demand %i (%.3fMB, %.3fMB original)\n", total, totalt / 1048576.0, totalp / 1048576.0, loaded, loadedt / 1048576.0, loadedp / 1048576.0, total - loaded, (totalt - loadedt) / 1048576.0, (totalp - loadedp) / 1048576.0);
 444 }
 445
 446 static void R_TextureStats_f(void)
 447 {
 448         int loaded;
 449         gltexture_t *glt;
 450         gltexturepool_t *pool;
 451         Con_Printf("glsize input loaded mip alpha name\n");
 452         for (pool = gltexturepoolchain;pool;pool = pool->next)
 453         {
 454                 for (glt = pool->gltchain;glt;glt = glt->chain)
 455                 {
 456                         loaded = !(glt->flags & GLTEXF_UPLOAD);
 457                         Con_Printf("%c%4i%c%c%4i%c %s %s %s %s\n", loaded ? '[' : ' ', (R_CalcTexelDataSize(glt) + 1023) / 1024, loaded ? ']' : ' ', glt->inputtexels ? '[' : ' ', (glt->inputdatasize + 1023) / 1024, glt->inputtexels ? ']' : ' ', loaded ? "loaded" : "      ", (glt->flags & TEXF_MIPMAP) ? "mip" : "   ", (glt->flags & TEXF_ALPHA) ? "alpha" : "     ", glt->identifier ? glt->identifier : "<unnamed>");
 458                 }
 459                 Con_Printf("pool %10p\n", pool);
 460         }
 461         R_TextureStats_PrintTotal();
 462 }
 463
 464 char engineversion[40];
 465
 466 static void r_textures_start(void)
 467 {
 468         // deal with size limits of various drivers (3dfx in particular)
 469         qglGetIntegerv(GL_MAX_TEXTURE_SIZE, &realmaxsize);
 470         CHECKGLERROR
 471         // LordHavoc: allow any alignment
 472         qglPixelStorei(GL_UNPACK_ALIGNMENT, 1);
 473         CHECKGLERROR
 474
 475         // use the largest scrap texture size we can (not sure if this is really a good idea)
 476         for (block_size = 1;block_size < realmaxsize && block_size < r_max_scrapsize.integer;block_size <<= 1);
 477
 478         texturemempool = Mem_AllocPool("Texture Info");
 479         texturedatamempool = Mem_AllocPool("Texture Storage (not yet uploaded)");
 480         textureprocessingmempool = Mem_AllocPool("Texture Processing Buffers");
 481
 482         // Disable JPEG screenshots if the DLL isn't loaded
 483         if (! JPEG_OpenLibrary ())
 484                 Cvar_SetValueQuick (&scr_screenshot_jpeg, 0);
 485 }
 486
 487 static void r_textures_shutdown(void)
 488 {
 489         rtexturepool_t *temp;
 490
 491         JPEG_CloseLibrary ();
 492
 493         while(gltexturepoolchain)
 494         {
 495                 temp = (rtexturepool_t *) gltexturepoolchain;
 496                 R_FreeTexturePool(&temp);
 497         }
 498
 499         resizebuffersize = 0;
 500         texturebuffersize = 0;
 501         resizebuffer = NULL;
 502         colorconvertbuffer = NULL;
 503         texturebuffer = NULL;
 504         Mem_FreePool(&texturemempool);
 505         Mem_FreePool(&texturedatamempool);
 506         Mem_FreePool(&textureprocessingmempool);
 507 }
 508
 509 static void r_textures_newmap(void)
 510 {
 511 }
 512
 513 void R_Textures_Init (void)
 514 {
 515         Cmd_AddCommand("gl_texturemode", &GL_TextureMode_f);
 516         Cmd_AddCommand("r_texturestats", R_TextureStats_f);
 517         Cvar_RegisterVariable (&r_max_scrapsize);
 518         Cvar_RegisterVariable (&r_max_size);
 519         Cvar_RegisterVariable (&r_picmip);
 520         Cvar_RegisterVariable (&r_lerpimages);
 521         Cvar_RegisterVariable (&r_precachetextures);
 522
 523         R_RegisterModule("R_Textures", r_textures_start, r_textures_shutdown, r_textures_newmap);
 524 }
 525
 526 void R_Textures_Frame (void)
 527 {
 528         // could do procedural texture animation here, if we keep track of which
 529         // textures were accessed this frame...
 530
 531         // free the resize buffers
 532         resizebuffersize = 0;
 533         if (resizebuffer)
 534         {
 535                 Mem_Free(resizebuffer);
 536                 resizebuffer = NULL;
 537         }
 538         if (colorconvertbuffer)
 539         {
 540                 Mem_Free(colorconvertbuffer);
 541                 colorconvertbuffer = NULL;
 542         }
 543 }
 544
 545 void R_MakeResizeBufferBigger(int size)
 546 {
 547         if (resizebuffersize < size)
 548         {
 549                 resizebuffersize = size;
 550                 if (resizebuffer)
 551                         Mem_Free(resizebuffer);
 552                 if (colorconvertbuffer)
 553                         Mem_Free(colorconvertbuffer);
 554                 resizebuffer = Mem_Alloc(textureprocessingmempool, resizebuffersize);
 555                 colorconvertbuffer = Mem_Alloc(textureprocessingmempool, resizebuffersize);
 556                 if (!resizebuffer || !colorconvertbuffer)
 557                         Host_Error("R_Upload: out of memory\n");
 558         }
 559 }
 560
 561 static void GL_SetupTextureParameters(int flags, int texturetype)
 562 {
 563         int textureenum = gltexturetypeenums[texturetype];
 564         int wrapmode = ((flags & TEXF_CLAMP) && gl_support_clamptoedge) ? GL_CLAMP_TO_EDGE : GL_REPEAT;
 565
 566         CHECKGLERROR
 567
 568         qglTexParameteri(textureenum, GL_TEXTURE_WRAP_S, wrapmode);
 569         qglTexParameteri(textureenum, GL_TEXTURE_WRAP_T, wrapmode);
 570         if (gltexturetypedimensions[texturetype] >= 3)
 571                 qglTexParameteri(textureenum, GL_TEXTURE_WRAP_R, wrapmode);
 572
 573         if (flags & TEXF_FORCENEAREST)
 574         {
 575                 if (flags & TEXF_MIPMAP)
 576                         qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
 577                 else
 578                         qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 579                 qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 580         }
 581         else if (flags & TEXF_FORCELINEAR)
 582         {
 583                 if (flags & TEXF_MIPMAP)
 584                 {
 585                         if (gl_filter_min == GL_NEAREST_MIPMAP_LINEAR || gl_filter_min == GL_LINEAR_MIPMAP_LINEAR)
 586                                 qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 587                         else
 588                                 qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
 589                 }
 590                 else
 591                         qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 592                 qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 593         }
 594         else
 595         {
 596                 if (flags & TEXF_MIPMAP)
 597                         qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_min);
 598                 else
 599                         qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
 600                 qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
 601         }
 602
 603         CHECKGLERROR
 604 }
 605
 606 static void R_Upload(gltexture_t *glt, qbyte *data)
 607 {
 608         int i, mip, width, height, depth;
 609         GLint oldbindtexnum;
 610         qbyte *prevbuffer;
 611         prevbuffer = data;
 612
 613         CHECKGLERROR
 614
 615         glt->texnum = glt->image->texnum;
 616         // we need to restore the texture binding after finishing the upload
 617         qglGetIntegerv(gltexturetypebindingenums[glt->image->texturetype], &oldbindtexnum);
 618         qglBindTexture(gltexturetypeenums[glt->image->texturetype], glt->image->texnum);
 619         CHECKGLERROR
 620         glt->flags &= ~GLTEXF_UPLOAD;
 621
 622         if (glt->flags & TEXF_FRAGMENT)
 623         {
 624                 if (glt->image->flags & GLTEXF_UPLOAD)
 625                 {
 626                         glt->image->flags &= ~GLTEXF_UPLOAD;
 627                         Con_DPrintf("uploaded new fragments image\n");
 628                         R_MakeResizeBufferBigger(glt->image->width * glt->image->height * glt->image->depth * glt->image->bytesperpixel);
 629                         memset(resizebuffer, 255, glt->image->width * glt->image->height * glt->image->depth * glt->image->bytesperpixel);
 630                         switch(glt->image->texturetype)
 631                         {
 632                         case GLTEXTURETYPE_1D:
 633                                 qglTexImage1D(GL_TEXTURE_1D, 0, glt->image->glinternalformat, glt->image->width, 0, glt->image->glformat, GL_UNSIGNED_BYTE, resizebuffer);
 634                                 CHECKGLERROR
 635                                 break;
 636                         case GLTEXTURETYPE_2D:
 637                                 qglTexImage2D(GL_TEXTURE_2D, 0, glt->image->glinternalformat, glt->image->width, glt->image->height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, resizebuffer);
 638                                 CHECKGLERROR
 639                                 break;
 640                         case GLTEXTURETYPE_3D:
 641                                 qglTexImage3D(GL_TEXTURE_3D, 0, glt->image->glinternalformat, glt->image->width, glt->image->height, glt->image->depth, 0, glt->image->glformat, GL_UNSIGNED_BYTE, resizebuffer);
 642                                 CHECKGLERROR
 643                                 break;
 644                         default:
 645                                 Host_Error("R_Upload: fragment texture of type other than 1D, 2D, or 3D\n");
 646                                 break;
 647                         }
 648                         GL_SetupTextureParameters(glt->image->flags, glt->image->texturetype);
 649                 }
 650
 651                 if (prevbuffer == NULL)
 652                 {
 653                         R_MakeResizeBufferBigger(glt->image->width * glt->image->height * glt->image->depth * glt->image->bytesperpixel);
 654                         memset(resizebuffer, 255, glt->width * glt->height * glt->image->depth * glt->image->bytesperpixel);
 655                         prevbuffer = resizebuffer;
 656                 }
 657                 else if (glt->textype->textype == TEXTYPE_PALETTE)
 658                 {
 659                         // promote paletted to RGBA, so we only have to worry about RGB and
 660                         // RGBA in the rest of this code
 661                         R_MakeResizeBufferBigger(glt->image->width * glt->image->height * glt->image->depth * glt->image->sides * glt->image->bytesperpixel);
 662                         Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, glt->width * glt->height * glt->depth, glt->palette);
 663                         prevbuffer = colorconvertbuffer;
 664                 }
 665
 666                 switch(glt->image->texturetype)
 667                 {
 668                 case GLTEXTURETYPE_1D:
 669                         qglTexSubImage1D(GL_TEXTURE_1D, 0, glt->x, glt->width, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
 670                         CHECKGLERROR
 671                         break;
 672                 case GLTEXTURETYPE_2D:
 673                         qglTexSubImage2D(GL_TEXTURE_2D, 0, glt->x, glt->y, glt->width, glt->height, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
 674                         CHECKGLERROR
 675                         break;
 676                 case GLTEXTURETYPE_3D:
 677                         qglTexSubImage3D(GL_TEXTURE_3D, 0, glt->x, glt->y, glt->z, glt->width, glt->height, glt->depth, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
 678                         CHECKGLERROR
 679                         break;
 680                 default:
 681                         Host_Error("R_Upload: fragment texture of type other than 1D, 2D, or 3D\n");
 682                         break;
 683                 }
 684         }
 685         else
 686         {
 687                 glt->image->flags &= ~GLTEXF_UPLOAD;
 688
 689                 // these are rounded up versions of the size to do better resampling
 690                 for (width  = 1;width  < glt->width ;width  <<= 1);
 691                 for (height = 1;height < glt->height;height <<= 1);
 692                 for (depth  = 1;depth  < glt->depth ;depth  <<= 1);
 693
 694                 R_MakeResizeBufferBigger(width * height * depth * glt->image->sides * glt->image->bytesperpixel);
 695
 696                 if (prevbuffer == NULL)
 697                 {
 698                         width = glt->image->width;
 699                         height = glt->image->height;
 700                         depth = glt->image->depth;
 701                         memset(resizebuffer, 255, width * height * depth * glt->image->bytesperpixel);
 702                         prevbuffer = resizebuffer;
 703                 }
 704                 else
 705                 {
 706                         if (glt->textype->textype == TEXTYPE_PALETTE)
 707                         {
 708                                 // promote paletted to RGBA, so we only have to worry about RGB and
 709                                 // RGBA in the rest of this code
 710                                 Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, glt->width * glt->height * glt->depth * glt->image->sides, glt->palette);
 711                                 prevbuffer = colorconvertbuffer;
 712                         }
 713                 }
 714
 715                 // cubemaps contain multiple images and thus get processed a bit differently
 716                 if (glt->image->texturetype != GLTEXTURETYPE_CUBEMAP)
 717                 {
 718                         if (glt->width != width || glt->height != height || glt->depth != depth)
 719                         {
 720                                 Image_Resample(prevbuffer, glt->width, glt->height, glt->depth, resizebuffer, width, height, depth, glt->image->bytesperpixel, r_lerpimages.integer);
 721                                 prevbuffer = resizebuffer;
 722                         }
 723                         // picmip/max_size
 724                         while (width > glt->image->width || height > glt->image->height || depth > glt->image->depth)
 725                         {
 726                                 Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, glt->image->width, glt->image->height, glt->image->depth, glt->image->bytesperpixel);
 727                                 prevbuffer = resizebuffer;
 728                         }
 729                 }
 730                 mip = 0;
 731                 switch(glt->image->texturetype)
 732                 {
 733                 case GLTEXTURETYPE_1D:
 734                         qglTexImage1D(GL_TEXTURE_1D, mip++, glt->image->glinternalformat, width, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
 735                         CHECKGLERROR
 736                         if (glt->flags & TEXF_MIPMAP)
 737                         {
 738                                 while (width > 1 || height > 1 || depth > 1)
 739                                 {
 740                                         Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->image->bytesperpixel);
 741                                         prevbuffer = resizebuffer;
 742                                         qglTexImage1D(GL_TEXTURE_1D, mip++, glt->image->glinternalformat, width, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
 743                                         CHECKGLERROR
 744                                 }
 745                         }
 746                         break;
 747                 case GLTEXTURETYPE_2D:
 748                         qglTexImage2D(GL_TEXTURE_2D, mip++, glt->image->glinternalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
 749                         CHECKGLERROR
 750                         if (glt->flags & TEXF_MIPMAP)
 751                         {
 752                                 while (width > 1 || height > 1 || depth > 1)
 753                                 {
 754                                         Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->image->bytesperpixel);
 755                                         prevbuffer = resizebuffer;
 756                                         qglTexImage2D(GL_TEXTURE_2D, mip++, glt->image->glinternalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
 757                                         CHECKGLERROR
 758                                 }
 759                         }
 760                         break;
 761                 case GLTEXTURETYPE_3D:
 762                         qglTexImage3D(GL_TEXTURE_3D, mip++, glt->image->glinternalformat, width, height, depth, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
 763                         CHECKGLERROR
 764                         if (glt->flags & TEXF_MIPMAP)
 765                         {
 766                                 while (width > 1 || height > 1 || depth > 1)
 767                                 {
 768                                         Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->image->bytesperpixel);
 769                                         prevbuffer = resizebuffer;
 770                                         qglTexImage3D(GL_TEXTURE_3D, mip++, glt->image->glinternalformat, width, height, depth, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
 771                                         CHECKGLERROR
 772                                 }
 773                         }
 774                         break;
 775                 case GLTEXTURETYPE_CUBEMAP:
 776                         // convert and upload each side in turn,
 777                         // from a continuous block of input texels
 778                         texturebuffer = prevbuffer;
 779                         for (i = 0;i < 6;i++)
 780                         {
 781                                 prevbuffer = texturebuffer;
 782                                 texturebuffer += width * height * depth * glt->textype->inputbytesperpixel;
 783                                 if (glt->width != width || glt->height != height || glt->depth != depth)
 784                                 {
 785                                         Image_Resample(prevbuffer, glt->width, glt->height, glt->depth, resizebuffer, width, height, depth, glt->image->bytesperpixel, r_lerpimages.integer);
 786                                         prevbuffer = resizebuffer;
 787                                 }
 788                                 // picmip/max_size
 789                                 while (width > glt->image->width || height > glt->image->height || depth > glt->image->depth)
 790                                 {
 791                                         Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, glt->image->width, glt->image->height, glt->image->depth, glt->image->bytesperpixel);
 792                                         prevbuffer = resizebuffer;
 793                                 }
 794                                 mip = 0;
 795                                 qglTexImage2D(cubemapside[i], mip++, glt->image->glinternalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
 796                                 CHECKGLERROR
 797                                 if (glt->flags & TEXF_MIPMAP)
 798                                 {
 799                                         while (width > 1 || height > 1 || depth > 1)
 800                                         {
 801                                                 Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->image->bytesperpixel);
 802                                                 prevbuffer = resizebuffer;
 803                                                 qglTexImage2D(cubemapside[i], mip++, glt->image->glinternalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
 804                                                 CHECKGLERROR
 805                                         }
 806                                 }
 807                         }
 808                         break;
 809                 }
 810                 GL_SetupTextureParameters(glt->image->flags, glt->image->texturetype);
 811         }
 812         qglBindTexture(gltexturetypeenums[glt->image->texturetype], oldbindtexnum);
 813 }
 814
 815 static void R_FindImageForTexture(gltexture_t *glt)
 816 {
 817         int i, j, best, best2, x, y, z, w, h, d;
 818         textypeinfo_t *texinfo;
 819         gltexturepool_t *pool;
 820         gltextureimage_t *image, **imagechainpointer;
 821         texinfo = glt->textype;
 822         pool = glt->pool;
 823
 824         // remains -1 until uploaded
 825         glt->texnum = -1;
 826
 827         x = 0;
 828         y = 0;
 829         z = 0;
 830         w = glt->width;
 831         h = glt->height;
 832         d = glt->depth;
 833         if (glt->flags & TEXF_FRAGMENT)
 834         {
 835                 for (imagechainpointer = &pool->imagechain;*imagechainpointer;imagechainpointer = &(*imagechainpointer)->imagechain)
 836                 {
 837                         image = *imagechainpointer;
 838                         if (image->type != GLIMAGETYPE_FRAGMENTS)
 839                                 continue;
 840                         if (image->texturetype != glt->texturetype)
 841                                 continue;
 842                         if ((image->flags ^ glt->flags) & (TEXF_MIPMAP | TEXF_ALPHA | TEXF_CLAMP))
 843                                 continue;
 844                         if (image->glformat != texinfo->glformat || image->glinternalformat != texinfo->glinternalformat)
 845                                 continue;
 846                         if (glt->width > image->width || glt->height > image->height || glt->depth > image->depth)
 847                                 continue;
 848
 849                         // got a fragments texture, find a place in it if we can
 850                         for (best = image->width, i = 0;i < image->width - w;i++)
 851                         {
 852                                 for (best2 = 0, j = 0;j < w;j++)
 853                                 {
 854                                         if (image->blockallocation[i+j] >= best)
 855                                                 break;
 856                                         if (best2 < image->blockallocation[i+j])
 857                                                 best2 = image->blockallocation[i+j];
 858                                 }
 859                                 if (j == w)
 860                                 {
 861                                         // this is a valid spot
 862                                         x = i;
 863                                         y = best = best2;
 864                                 }
 865                         }
 866
 867                         if (best + h > image->height)
 868                                 continue;
 869
 870                         for (i = 0;i < w;i++)
 871                                 image->blockallocation[x + i] = best + h;
 872
 873                         glt->x = x;
 874                         glt->y = y;
 875                         glt->z = 0;
 876                         glt->image = image;
 877                         image->texturecount++;
 878                         return;
 879                 }
 880
 881                 image = Mem_Alloc(texturemempool, sizeof(gltextureimage_t));
 882                 if (image == NULL)
 883                         Sys_Error("R_FindImageForTexture: ran out of memory\n");
 884                 image->type = GLIMAGETYPE_FRAGMENTS;
 885                 // make sure the created image is big enough for the fragment
 886                 for (image->width = block_size;image->width < glt->width;image->width <<= 1);
 887                 image->height = 1;
 888                 if (gltexturetypedimensions[glt->texturetype] >= 2)
 889                         for (image->height = block_size;image->height < glt->height;image->height <<= 1);
 890                 image->depth = 1;
 891                 if (gltexturetypedimensions[glt->texturetype] >= 3)
 892                         for (image->depth = block_size;image->depth < glt->depth;image->depth <<= 1);
 893                 image->blockallocation = Mem_Alloc(texturemempool, image->width * sizeof(short));
 894                 memset(image->blockallocation, 0, image->width * sizeof(short));
 895
 896                 x = 0;
 897                 y = 0;
 898                 z = 0;
 899                 for (i = 0;i < w;i++)
 900                         image->blockallocation[x + i] = y + h;
 901         }
 902         else
 903         {
 904                 for (imagechainpointer = &pool->imagechain;*imagechainpointer;imagechainpointer = &(*imagechainpointer)->imagechain);
 905
 906                 image = Mem_Alloc(texturemempool, sizeof(gltextureimage_t));
 907                 if (image == NULL)
 908                         Sys_Error("R_FindImageForTexture: ran out of memory\n");
 909                 image->type = GLIMAGETYPE_TILE;
 910                 image->blockallocation = NULL;
 911
 912                 // calculate final size
 913                 if (r_max_size.integer > realmaxsize)
 914                         Cvar_SetValue("r_max_size", realmaxsize);
 915                 for (image->width = 1;image->width < glt->width;image->width <<= 1);
 916                 for (image->height = 1;image->height < glt->height;image->height <<= 1);
 917                 for (image->depth = 1;image->depth < glt->depth;image->depth <<= 1);
 918                 for (image->width >>= r_picmip.integer;image->width > r_max_size.integer;image->width >>= 1);
 919                 for (image->height >>= r_picmip.integer;image->height > r_max_size.integer;image->height >>= 1);
 920                 for (image->depth >>= r_picmip.integer;image->depth > r_max_size.integer;image->depth >>= 1);
 921                 if (image->width < 1) image->width = 1;
 922                 if (image->height < 1) image->height = 1;
 923                 if (image->depth < 1) image->depth = 1;
 924         }
 925         image->texturetype = glt->texturetype;
 926         image->glinternalformat = texinfo->glinternalformat;
 927         image->glformat = texinfo->glformat;
 928         image->flags = (glt->flags & (TEXF_MIPMAP | TEXF_ALPHA | TEXF_CLAMP)) | GLTEXF_UPLOAD;
 929         image->bytesperpixel = texinfo->internalbytesperpixel;
 930         image->sides = image->texturetype == GLTEXTURETYPE_CUBEMAP ? 6 : 1;
 931         // get a texture number to use
 932         qglGenTextures(1, &image->texnum);
 933         *imagechainpointer = image;
 934         image->texturecount++;
 935
 936         glt->x = x;
 937         glt->y = y;
 938         glt->y = z;
 939         glt->image = image;
 940 }
 941
 942 // note: R_FindImageForTexture must be called before this
 943 static void R_UploadTexture (gltexture_t *glt)
 944 {
 945         if (!(glt->flags & GLTEXF_UPLOAD))
 946                 return;
 947
 948         R_Upload(glt, glt->inputtexels);
 949         if (glt->inputtexels)
 950         {
 951                 Mem_Free(glt->inputtexels);
 952                 glt->inputtexels = NULL;
 953                 glt->flags |= GLTEXF_DESTROYED;
 954         }
 955         else if (glt->flags & GLTEXF_DESTROYED)
 956                 Con_Printf("R_UploadTexture: Texture %s already uploaded and destroyed.  Can not upload original image again.  Uploaded blank texture.\n", glt->identifier);
 957 }
 958
 959 static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int depth, int sides, int flags, int textype, int texturetype, const qbyte *data, const unsigned int *palette)
 960 {
 961         int i, size;
 962         gltexture_t *glt;
 963         gltexturepool_t *pool = (gltexturepool_t *)rtexturepool;
 964         textypeinfo_t *texinfo;
 965
 966         if (cls.state == ca_dedicated)
 967                 return NULL;
 968
 969         if (flags & TEXF_FRAGMENT && texturetype != GLTEXTURETYPE_2D)
 970                 Sys_Error("R_LoadTexture: only 2D fragment textures implemented\n");
 971         if (texturetype == GLTEXTURETYPE_CUBEMAP && !gl_texturecubemap)
 972                 Sys_Error("R_LoadTexture: cubemap texture not supported by driver\n");
 973         if (texturetype == GLTEXTURETYPE_3D && !gl_texture3d)
 974                 Sys_Error("R_LoadTexture: 3d texture not supported by driver\n");
 975
 976         /*
 977         glt = R_FindTexture (pool, identifier);
 978         if (glt)
 979         {
 980                 Con_Printf("R_LoadTexture: replacing existing texture %s\n", identifier);
 981                 R_FreeTexture((rtexture_t *)glt);
 982         }
 983         */
 984
 985         texinfo = R_GetTexTypeInfo(textype, flags);
 986         size = width * height * depth * sides * texinfo->inputbytesperpixel;
 987         if (size < 1)
 988                 Sys_Error("R_LoadTexture: bogus texture size (%dx%dx%dx%dbppx%dsides = %d bytes)\n", width, height, depth, texinfo->inputbytesperpixel * 8, sides);
 989
 990         // clear the alpha flag if the texture has no transparent pixels
 991         switch(textype)
 992         {
 993         case TEXTYPE_PALETTE:
 994                 if (flags & TEXF_ALPHA)
 995                 {
 996                         flags &= ~TEXF_ALPHA;
 997                         if (data)
 998                         {
 999                                 for (i = 0;i < size;i++)
1000                                 {
1001                                         if (((qbyte *)&palette[data[i]])[3] < 255)
1002                                         {
1003                                                 flags |= TEXF_ALPHA;
1004                                                 break;
1005                                         }
1006                                 }
1007                         }
1008                 }
1009                 break;
1010         case TEXTYPE_RGB:
1011                 if (flags & TEXF_ALPHA)
1012                         Host_Error("R_LoadTexture: RGB has no alpha, don't specify TEXF_ALPHA\n");
1013                 break;
1014         case TEXTYPE_RGBA:
1015                 if (flags & TEXF_ALPHA)
1016                 {
1017                         flags &= ~TEXF_ALPHA;
1018                         if (data)
1019                         {
1020                                 for (i = 3;i < size;i += 4)
1021                                 {
1022                                         if (data[i] < 255)
1023                                         {
1024                                                 flags |= TEXF_ALPHA;
1025                                                 break;
1026                                         }
1027                                 }
1028                         }
1029                 }
1030                 break;
1031         default:
1032                 Host_Error("R_LoadTexture: unknown texture type\n");
1033         }
1034
1035         glt = Mem_Alloc(texturemempool, sizeof(gltexture_t));
1036         if (identifier)
1037         {
1038                 glt->identifier = Mem_Alloc(texturemempool, strlen(identifier)+1);
1039                 strcpy (glt->identifier, identifier);
1040         }
1041         else
1042                 glt->identifier = NULL;
1043         glt->pool = pool;
1044         glt->chain = pool->gltchain;
1045         pool->gltchain = glt;
1046         glt->width = width;
1047         glt->height = height;
1048         glt->depth = depth;
1049         glt->flags = flags | GLTEXF_UPLOAD;
1050         glt->textype = texinfo;
1051         glt->texturetype = texturetype;
1052         glt->inputdatasize = size;
1053         glt->palette = palette;
1054
1055         if (data)
1056         {
1057                 glt->inputtexels = Mem_Alloc(texturedatamempool, size);
1058                 if (glt->inputtexels == NULL)
1059                         Sys_Error("R_LoadTexture: out of memory\n");
1060                 memcpy(glt->inputtexels, data, size);
1061         }
1062         else
1063                 glt->inputtexels = NULL;
1064
1065         R_FindImageForTexture(glt);
1066         R_PrecacheTexture(glt);
1067
1068         return (rtexture_t *)glt;
1069 }
1070
1071 rtexture_t *R_LoadTexture1D(rtexturepool_t *rtexturepool, const char *identifier, int width, const qbyte *data, int textype, int flags, const unsigned int *palette)
1072 {
1073         return R_SetupTexture(rtexturepool, identifier, width, 1, 1, 1, flags, textype, GLTEXTURETYPE_1D, data, palette);
1074 }
1075
1076 rtexture_t *R_LoadTexture2D(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, const qbyte *data, int textype, int flags, const unsigned int *palette)
1077 {
1078         return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, flags, textype, GLTEXTURETYPE_2D, data, palette);
1079 }
1080
1081 rtexture_t *R_LoadTexture3D(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int depth, const qbyte *data, int textype, int flags, const unsigned int *palette)
1082 {
1083         return R_SetupTexture(rtexturepool, identifier, width, height, depth, 1, flags, textype, GLTEXTURETYPE_3D, data, palette);
1084 }
1085
1086 rtexture_t *R_LoadTextureCubeMap(rtexturepool_t *rtexturepool, const char *identifier, int width, const qbyte *data, int textype, int flags, const unsigned int *palette)
1087 {
1088         return R_SetupTexture(rtexturepool, identifier, width, width, 1, 6, flags, textype, GLTEXTURETYPE_CUBEMAP, data, palette);
1089 }
1090
1091 int R_TextureHasAlpha(rtexture_t *rt)
1092 {
1093         return rt ? (((gltexture_t *)rt)->flags & TEXF_ALPHA) != 0 : false;
1094 }
1095
1096 int R_TextureWidth(rtexture_t *rt)
1097 {
1098         return rt ? ((gltexture_t *)rt)->width : 0;
1099 }
1100
1101 int R_TextureHeight(rtexture_t *rt)
1102 {
1103         return rt ? ((gltexture_t *)rt)->height : 0;
1104 }
1105
1106 void R_FragmentLocation3D(rtexture_t *rt, int *x, int *y, int *z, float *fx1, float *fy1, float *fz1, float *fx2, float *fy2, float *fz2)
1107 {
1108         gltexture_t *glt;
1109         float iwidth, iheight, idepth;
1110         if (cls.state == ca_dedicated)
1111         {
1112                 if (x)
1113                         *x = 0;
1114                 if (y)
1115                         *y = 0;
1116                 if (z)
1117                         *z = 0;
1118                 if (fx1 || fy1 || fx2 || fy2)
1119                 {
1120                         if (fx1)
1121                                 *fx1 = 0;
1122                         if (fy1)
1123                                 *fy1 = 0;
1124                         if (fz1)
1125                                 *fz1 = 0;
1126                         if (fx2)
1127                                 *fx2 = 1;
1128                         if (fy2)
1129                                 *fy2 = 1;
1130                         if (fz2)
1131                                 *fz2 = 1;
1132                 }
1133                 return;
1134         }
1135         if (!rt)
1136                 Host_Error("R_FragmentLocation: no texture supplied\n");
1137         glt = (gltexture_t *)rt;
1138         if (glt->flags & TEXF_FRAGMENT)
1139         {
1140                 if (x)
1141                         *x = glt->x;
1142                 if (y)
1143                         *y = glt->y;
1144                 if (fx1 || fy1 || fx2 || fy2)
1145                 {
1146                         iwidth = 1.0f / glt->image->width;
1147                         iheight = 1.0f / glt->image->height;
1148                         idepth = 1.0f / glt->image->depth;
1149                         if (fx1)
1150                                 *fx1 = glt->x * iwidth;
1151                         if (fy1)
1152                                 *fy1 = glt->y * iheight;
1153                         if (fz1)
1154                                 *fz1 = glt->z * idepth;
1155                         if (fx2)
1156                                 *fx2 = (glt->x + glt->width) * iwidth;
1157                         if (fy2)
1158                                 *fy2 = (glt->y + glt->height) * iheight;
1159                         if (fz2)
1160                                 *fz2 = (glt->z + glt->depth) * idepth;
1161                 }
1162         }
1163         else
1164         {
1165                 if (x)
1166                         *x = 0;
1167                 if (y)
1168                         *y = 0;
1169                 if (z)
1170                         *z = 0;
1171                 if (fx1 || fy1 || fx2 || fy2)
1172                 {
1173                         if (fx1)
1174                                 *fx1 = 0;
1175                         if (fy1)
1176                                 *fy1 = 0;
1177                         if (fz1)
1178                                 *fz1 = 0;
1179                         if (fx2)
1180                                 *fx2 = 1;
1181                         if (fy2)
1182                                 *fy2 = 1;
1183                         if (fz2)
1184                                 *fz2 = 1;
1185                 }
1186         }
1187 }
1188
1189 void R_FragmentLocation(rtexture_t *rt, int *x, int *y, float *fx1, float *fy1, float *fx2, float *fy2)
1190 {
1191         R_FragmentLocation3D(rt, x, y, NULL, fx1, fy1, NULL, fx2, fy2, NULL);
1192 }
1193
1194 int R_CompatibleFragmentWidth(int width, int textype, int flags)
1195 {
1196         return width;
1197 }
1198
1199 void R_UpdateTexture(rtexture_t *rt, qbyte *data)
1200 {
1201         gltexture_t *glt;
1202         if (rt == NULL)
1203                 Host_Error("R_UpdateTexture: no texture supplied\n");
1204         if (data == NULL)
1205                 Host_Error("R_UpdateTexture: no data supplied\n");
1206         glt = (gltexture_t *)rt;
1207
1208         // if it has not been uploaded yet, update the data that will be used when it is
1209         if (glt->inputtexels)
1210                 memcpy(glt->inputtexels, data, glt->inputdatasize);
1211         else
1212                 R_Upload(glt, data);
1213 }
1214