gl_textures.c

   1
   2 #include "quakedef.h"
   3 #include "image.h"
   4 #include "jpeg.h"
   5 #include "image_png.h"
   6
   7 cvar_t gl_max_size = {CVAR_SAVE, "gl_max_size", "2048", "maximum allowed texture size, can be used to reduce video memory usage, note: this is automatically reduced to match video card capabilities (such as 256 on 3Dfx cards before Voodoo4/5)"};
   8 cvar_t gl_picmip = {CVAR_SAVE, "gl_picmip", "0", "reduces resolution of textures by powers of 2, for example 1 will halve width/height, reducing texture memory usage by 75%"};
   9 cvar_t r_lerpimages = {CVAR_SAVE, "r_lerpimages", "1", "bilinear filters images when scaling them up to power of 2 size (mode 1), looks better than glquake (mode 0)"};
  10 cvar_t r_precachetextures = {CVAR_SAVE, "r_precachetextures", "1", "0 = never upload textures until used, 1 = upload most textures before use (exceptions: rarely used skin colormap layers), 2 = upload all textures before use (can increase texture memory usage significantly)"};
  11 cvar_t gl_texture_anisotropy = {CVAR_SAVE, "gl_texture_anisotropy", "1", "anisotropic filtering quality (if supported by hardware), 1 sample (no anisotropy) and 8 sample (8 tap anisotropy) are recommended values"};
  12 cvar_t gl_texturecompression = {CVAR_SAVE, "gl_texturecompression", "0", "whether to compress textures, a value of 0 disables compression (even if the individual cvars are 1), 1 enables fast (low quality) compression at startup, 2 enables slow (high quality) compression at startup"};
  13 cvar_t gl_texturecompression_color = {CVAR_SAVE, "gl_texturecompression_color", "1", "whether to compress colormap (diffuse) textures"};
  14 cvar_t gl_texturecompression_normal = {CVAR_SAVE, "gl_texturecompression_normal", "1", "whether to compress normalmap (normalmap) textures"};
  15 cvar_t gl_texturecompression_gloss = {CVAR_SAVE, "gl_texturecompression_gloss", "1", "whether to compress glossmap (specular) textures"};
  16 cvar_t gl_texturecompression_glow = {CVAR_SAVE, "gl_texturecompression_glow", "1", "whether to compress glowmap (luma) textures"};
  17 cvar_t gl_texturecompression_2d = {CVAR_SAVE, "gl_texturecompression_2d", "1", "whether to compress 2d (hud/menu) textures other than the font"};
  18 cvar_t gl_texturecompression_q3bsplightmaps = {CVAR_SAVE, "gl_texturecompression_q3bsplightmaps", "1", "whether to compress lightmaps in q3bsp format levels"};
  19 cvar_t gl_texturecompression_q3bspdeluxemaps = {CVAR_SAVE, "gl_texturecompression_q3bspdeluxemaps", "1", "whether to compress deluxemaps in q3bsp format levels (only levels compiled with q3map2 -deluxe have these)"};
  20 cvar_t gl_texturecompression_sky = {CVAR_SAVE, "gl_texturecompression_sky", "0", "whether to compress sky textures"};
  21 cvar_t gl_texturecompression_lightcubemaps = {CVAR_SAVE, "gl_texturecompression_lightcubemaps", "1", "whether to compress light cubemaps (spotlights and other light projection images)"};
  22
  23 int             gl_filter_min = GL_LINEAR_MIPMAP_LINEAR;
  24 int             gl_filter_mag = GL_LINEAR;
  25
  26
  27 static mempool_t *texturemempool;
  28
  29 // note: this must not conflict with TEXF_ flags in r_textures.h
  30 // cleared when a texture is uploaded
  31 #define GLTEXF_UPLOAD           0x00010000
  32 // bitmask for mismatch checking
  33 #define GLTEXF_IMPORTANTBITS (0)
  34 // set when image is uploaded and freed
  35 #define GLTEXF_DESTROYED        0x00040000
  36 // dynamic texture (treat texnum == 0 differently)
  37 #define GLTEXF_DYNAMIC          0x00080000
  38
  39 typedef struct textypeinfo_s
  40 {
  41         int textype;
  42         int inputbytesperpixel;
  43         int internalbytesperpixel;
  44         float glinternalbytesperpixel;
  45         int glformat;
  46         int glinternalformat;
  47 }
  48 textypeinfo_t;
  49
  50 static textypeinfo_t textype_palette                = {TEXTYPE_PALETTE, 1, 4, 4.0f, GL_RGBA   , 3};
  51 static textypeinfo_t textype_rgb                    = {TEXTYPE_RGB    , 3, 3, 4.0f, GL_RGB    , 3};
  52 static textypeinfo_t textype_rgba                   = {TEXTYPE_RGBA   , 4, 4, 4.0f, GL_RGBA   , 3};
  53 static textypeinfo_t textype_palette_alpha          = {TEXTYPE_PALETTE, 1, 4, 4.0f, GL_RGBA   , 4};
  54 static textypeinfo_t textype_rgba_alpha             = {TEXTYPE_RGBA   , 4, 4, 4.0f, GL_RGBA   , 4};
  55 static textypeinfo_t textype_palette_compress       = {TEXTYPE_PALETTE, 1, 4, 0.5f, GL_RGBA   , GL_COMPRESSED_RGB_ARB};
  56 static textypeinfo_t textype_rgb_compress           = {TEXTYPE_RGB    , 3, 3, 0.5f, GL_RGB    , GL_COMPRESSED_RGB_ARB};
  57 static textypeinfo_t textype_rgba_compress          = {TEXTYPE_RGBA   , 4, 4, 0.5f, GL_RGBA   , GL_COMPRESSED_RGB_ARB};
  58 static textypeinfo_t textype_palette_alpha_compress = {TEXTYPE_PALETTE, 1, 4, 1.0f, GL_RGBA   , GL_COMPRESSED_RGBA_ARB};
  59 static textypeinfo_t textype_rgba_alpha_compress    = {TEXTYPE_RGBA   , 4, 4, 1.0f, GL_RGBA   , GL_COMPRESSED_RGBA_ARB};
  60
  61 #define GLTEXTURETYPE_1D 0
  62 #define GLTEXTURETYPE_2D 1
  63 #define GLTEXTURETYPE_3D 2
  64 #define GLTEXTURETYPE_CUBEMAP 3
  65
  66 static int gltexturetypeenums[4] = {GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP_ARB};
  67 static int gltexturetypebindingenums[4] = {GL_TEXTURE_BINDING_1D, GL_TEXTURE_BINDING_2D, GL_TEXTURE_BINDING_3D, GL_TEXTURE_BINDING_CUBE_MAP_ARB};
  68 static int gltexturetypedimensions[4] = {1, 2, 3, 2};
  69 static int cubemapside[6] =
  70 {
  71         GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB,
  72         GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB,
  73         GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB,
  74         GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB,
  75         GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB,
  76         GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
  77 };
  78
  79 typedef struct gltexture_s
  80 {
  81         // this field is exposed to the R_GetTexture macro, for speed reasons
  82         // (must be identical in rtexture_t)
  83         int texnum; // GL texture slot number
  84
  85         // dynamic texture stuff [11/22/2007 Black]
  86         // used to hold the texture number of dirty textures
  87         int dirtytexnum;
  88         updatecallback_t updatecallback;
  89         void *updatacallback_data;
  90         // --- [11/22/2007 Black]
  91
  92         // pointer to texturepool (check this to see if the texture is allocated)
  93         struct gltexturepool_s *pool;
  94         // pointer to next texture in texturepool chain
  95         struct gltexture_s *chain;
  96         // name of the texture (this might be removed someday), no duplicates
  97         char identifier[MAX_QPATH + 32];
  98         // original data size in *inputtexels
  99         int inputwidth, inputheight, inputdepth;
 100         // copy of the original texture(s) supplied to the upload function, for
 101         // delayed uploads (non-precached)
 102         unsigned char *inputtexels;
 103         // original data size in *inputtexels
 104         int inputdatasize;
 105         // flags supplied to the LoadTexture function
 106         // (might be altered to remove TEXF_ALPHA), and GLTEXF_ private flags
 107         int flags;
 108         // pointer to one of the textype_ structs
 109         textypeinfo_t *textype;
 110         // one of the GLTEXTURETYPE_ values
 111         int texturetype;
 112         // palette if the texture is TEXTYPE_PALETTE
 113         const unsigned int *palette;
 114         // actual stored texture size after gl_picmip and gl_max_size are applied
 115         // (power of 2 if gl_support_arb_texture_non_power_of_two is not supported)
 116         int tilewidth, tileheight, tiledepth;
 117         // 1 or 6 depending on texturetype
 118         int sides;
 119         // bytes per pixel
 120         int bytesperpixel;
 121         // GL_RGB or GL_RGBA
 122         int glformat;
 123         // 3 or 4
 124         int glinternalformat;
 125 }
 126 gltexture_t;
 127
 128 #define TEXTUREPOOL_SENTINEL 0xC0DEDBAD
 129
 130 typedef struct gltexturepool_s
 131 {
 132         unsigned int sentinel;
 133         struct gltexture_s *gltchain;
 134         struct gltexturepool_s *next;
 135 }
 136 gltexturepool_t;
 137
 138 static gltexturepool_t *gltexturepoolchain = NULL;
 139
 140 static unsigned char *resizebuffer = NULL, *colorconvertbuffer;
 141 static int resizebuffersize = 0;
 142 static unsigned char *texturebuffer;
 143 static int texturebuffersize = 0;
 144
 145 static textypeinfo_t *R_GetTexTypeInfo(int textype, int flags)
 146 {
 147         if ((flags & TEXF_COMPRESS) && gl_texturecompression.integer >= 1 && gl_support_texture_compression)
 148         {
 149                 if (flags & TEXF_ALPHA)
 150                 {
 151                         switch(textype)
 152                         {
 153                         case TEXTYPE_PALETTE:
 154                                 return &textype_palette_alpha_compress;
 155                         case TEXTYPE_RGB:
 156                                 Host_Error("R_GetTexTypeInfo: RGB format has no alpha, TEXF_ALPHA not allowed");
 157                                 return NULL;
 158                         case TEXTYPE_RGBA:
 159                                 return &textype_rgba_alpha_compress;
 160                         default:
 161                                 Host_Error("R_GetTexTypeInfo: unknown texture format");
 162                                 return NULL;
 163                         }
 164                 }
 165                 else
 166                 {
 167                         switch(textype)
 168                         {
 169                         case TEXTYPE_PALETTE:
 170                                 return &textype_palette_compress;
 171                         case TEXTYPE_RGB:
 172                                 return &textype_rgb_compress;
 173                         case TEXTYPE_RGBA:
 174                                 return &textype_rgba_compress;
 175                         default:
 176                                 Host_Error("R_GetTexTypeInfo: unknown texture format");
 177                                 return NULL;
 178                         }
 179                 }
 180         }
 181         else
 182         {
 183                 if (flags & TEXF_ALPHA)
 184                 {
 185                         switch(textype)
 186                         {
 187                         case TEXTYPE_PALETTE:
 188                                 return &textype_palette_alpha;
 189                         case TEXTYPE_RGB:
 190                                 Host_Error("R_GetTexTypeInfo: RGB format has no alpha, TEXF_ALPHA not allowed");
 191                                 return NULL;
 192                         case TEXTYPE_RGBA:
 193                                 return &textype_rgba_alpha;
 194                         default:
 195                                 Host_Error("R_GetTexTypeInfo: unknown texture format");
 196                                 return NULL;
 197                         }
 198                 }
 199                 else
 200                 {
 201                         switch(textype)
 202                         {
 203                         case TEXTYPE_PALETTE:
 204                                 return &textype_palette;
 205                         case TEXTYPE_RGB:
 206                                 return &textype_rgb;
 207                         case TEXTYPE_RGBA:
 208                                 return &textype_rgba;
 209                         default:
 210                                 Host_Error("R_GetTexTypeInfo: unknown texture format");
 211                                 return NULL;
 212                         }
 213                 }
 214         }
 215         return NULL; // this line only to hush compiler warnings
 216 }
 217
 218 // dynamic texture code [11/22/2007 Black]
 219 void R_MarkDirtyTexture(rtexture_t *rt) {
 220         gltexture_t *glt = (gltexture_t*) rt;
 221         // dont do anything if the texture is already dirty (and make sure this *is* a dynamic texture after all!)
 222         if( !glt->dirtytexnum && glt->flags & GLTEXF_DYNAMIC ) {
 223                 glt->dirtytexnum = glt->texnum;
 224                 // mark it as dirty, so R_RealGetTexture gets called
 225                 glt->texnum = 0;
 226         }
 227 }
 228
 229 void R_MakeTextureDynamic(rtexture_t *rt, updatecallback_t updatecallback, void *data) {
 230         gltexture_t *glt = (gltexture_t*) rt;
 231         glt->flags |= GLTEXF_DYNAMIC;
 232         glt->updatecallback = updatecallback;
 233         glt->updatacallback_data = data;
 234 }
 235
 236 static void R_UpdateDynamicTexture(gltexture_t *glt) {
 237         glt->texnum = glt->dirtytexnum;
 238         // reset dirtytexnum again (not dirty anymore)
 239         glt->dirtytexnum = 0;
 240         // TODO: now assert that t->texnum != 0 ?
 241         if( glt->updatecallback ) {
 242                 glt->updatecallback( (rtexture_t*) glt, glt->updatacallback_data );
 243         }
 244 }
 245
 246 static void R_UploadTexture(gltexture_t *t);
 247
 248 static void R_PrecacheTexture(gltexture_t *glt)
 249 {
 250         int precache;
 251         precache = false;
 252         if (glt->flags & TEXF_ALWAYSPRECACHE)
 253                 precache = true;
 254         else if (r_precachetextures.integer >= 2)
 255                 precache = true;
 256         else if (r_precachetextures.integer >= 1)
 257                 if (glt->flags & TEXF_PRECACHE)
 258                         precache = true;
 259
 260         if (precache)
 261                 R_UploadTexture(glt);
 262 }
 263
 264 int R_RealGetTexture(rtexture_t *rt)
 265 {
 266         if (rt)
 267         {
 268                 gltexture_t *glt;
 269                 glt = (gltexture_t *)rt;
 270                 if (glt->flags & GLTEXF_UPLOAD)
 271                         R_UploadTexture(glt);
 272                 if (glt->flags & GLTEXF_DYNAMIC)
 273                         R_UpdateDynamicTexture(glt);
 274
 275                 return glt->texnum;
 276         }
 277         else
 278                 return 0;
 279 }
 280
 281 void R_FreeTexture(rtexture_t *rt)
 282 {
 283         gltexture_t *glt, **gltpointer;
 284
 285         glt = (gltexture_t *)rt;
 286         if (glt == NULL)
 287                 Host_Error("R_FreeTexture: texture == NULL");
 288
 289         for (gltpointer = &glt->pool->gltchain;*gltpointer && *gltpointer != glt;gltpointer = &(*gltpointer)->chain);
 290         if (*gltpointer == glt)
 291                 *gltpointer = glt->chain;
 292         else
 293                 Host_Error("R_FreeTexture: texture \"%s\" not linked in pool", glt->identifier);
 294
 295         if (glt->texnum)
 296         {
 297                 CHECKGLERROR
 298                 qglDeleteTextures(1, (GLuint *)&glt->texnum);CHECKGLERROR
 299         }
 300
 301         if (glt->inputtexels)
 302                 Mem_Free(glt->inputtexels);
 303         Mem_Free(glt);
 304 }
 305
 306 rtexturepool_t *R_AllocTexturePool(void)
 307 {
 308         gltexturepool_t *pool;
 309         if (texturemempool == NULL)
 310                 return NULL;
 311         pool = (gltexturepool_t *)Mem_Alloc(texturemempool, sizeof(gltexturepool_t));
 312         if (pool == NULL)
 313                 return NULL;
 314         pool->next = gltexturepoolchain;
 315         gltexturepoolchain = pool;
 316         pool->sentinel = TEXTUREPOOL_SENTINEL;
 317         return (rtexturepool_t *)pool;
 318 }
 319
 320 void R_FreeTexturePool(rtexturepool_t **rtexturepool)
 321 {
 322         gltexturepool_t *pool, **poolpointer;
 323         if (rtexturepool == NULL)
 324                 return;
 325         if (*rtexturepool == NULL)
 326                 return;
 327         pool = (gltexturepool_t *)(*rtexturepool);
 328         *rtexturepool = NULL;
 329         if (pool->sentinel != TEXTUREPOOL_SENTINEL)
 330                 Host_Error("R_FreeTexturePool: pool already freed");
 331         for (poolpointer = &gltexturepoolchain;*poolpointer && *poolpointer != pool;poolpointer = &(*poolpointer)->next);
 332         if (*poolpointer == pool)
 333                 *poolpointer = pool->next;
 334         else
 335                 Host_Error("R_FreeTexturePool: pool not linked");
 336         while (pool->gltchain)
 337                 R_FreeTexture((rtexture_t *)pool->gltchain);
 338         Mem_Free(pool);
 339 }
 340
 341
 342 typedef struct glmode_s
 343 {
 344         char *name;
 345         int minification, magnification;
 346 }
 347 glmode_t;
 348
 349 static glmode_t modes[6] =
 350 {
 351         {"GL_NEAREST", GL_NEAREST, GL_NEAREST},
 352         {"GL_LINEAR", GL_LINEAR, GL_LINEAR},
 353         {"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST},
 354         {"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR},
 355         {"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST},
 356         {"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
 357 };
 358
 359 static void GL_TextureMode_f (void)
 360 {
 361         int i;
 362         GLint oldbindtexnum;
 363         gltexture_t *glt;
 364         gltexturepool_t *pool;
 365
 366         if (Cmd_Argc() == 1)
 367         {
 368                 for (i = 0;i < 6;i++)
 369                 {
 370                         if (gl_filter_min == modes[i].minification)
 371                         {
 372                                 Con_Printf("%s\n", modes[i].name);
 373                                 return;
 374                         }
 375                 }
 376                 Con_Print("current filter is unknown???\n");
 377                 return;
 378         }
 379
 380         for (i = 0;i < 6;i++)
 381                 if (!strcasecmp (modes[i].name, Cmd_Argv(1) ) )
 382                         break;
 383         if (i == 6)
 384         {
 385                 Con_Print("bad filter name\n");
 386                 return;
 387         }
 388
 389         gl_filter_min = modes[i].minification;
 390         gl_filter_mag = modes[i].magnification;
 391
 392         // change all the existing mipmap texture objects
 393         // FIXME: force renderer(/client/something?) restart instead?
 394         CHECKGLERROR
 395         for (pool = gltexturepoolchain;pool;pool = pool->next)
 396         {
 397                 for (glt = pool->gltchain;glt;glt = glt->chain)
 398                 {
 399                         // only update already uploaded images
 400                         if (!(glt->flags & (GLTEXF_UPLOAD | TEXF_FORCENEAREST | TEXF_FORCELINEAR)))
 401                         {
 402                                 qglGetIntegerv(gltexturetypebindingenums[glt->texturetype], &oldbindtexnum);CHECKGLERROR
 403                                 qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
 404                                 if (glt->flags & TEXF_MIPMAP)
 405                                 {
 406                                         qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MIN_FILTER, gl_filter_min);CHECKGLERROR
 407                                 }
 408                                 else
 409                                 {
 410                                         qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MIN_FILTER, gl_filter_mag);CHECKGLERROR
 411                                 }
 412                                 qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MAG_FILTER, gl_filter_mag);CHECKGLERROR
 413                                 qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
 414                         }
 415                 }
 416         }
 417 }
 418
 419 static void GL_Texture_CalcImageSize(int texturetype, int flags, int inwidth, int inheight, int indepth, int *outwidth, int *outheight, int *outdepth)
 420 {
 421         int picmip = 0, maxsize = 0, width2 = 1, height2 = 1, depth2 = 1;
 422
 423         if (gl_max_size.integer > gl_max_texture_size)
 424                 Cvar_SetValue("gl_max_size", gl_max_texture_size);
 425
 426         switch (texturetype)
 427         {
 428         default:
 429         case GLTEXTURETYPE_1D:
 430         case GLTEXTURETYPE_2D:
 431                 maxsize = gl_max_texture_size;
 432                 break;
 433         case GLTEXTURETYPE_3D:
 434                 maxsize = gl_max_3d_texture_size;
 435                 break;
 436         case GLTEXTURETYPE_CUBEMAP:
 437                 maxsize = gl_max_cube_map_texture_size;
 438                 break;
 439         }
 440
 441         if (flags & TEXF_PICMIP)
 442         {
 443                 maxsize = min(maxsize, gl_max_size.integer);
 444                 picmip = gl_picmip.integer;
 445         }
 446
 447         if (outwidth)
 448         {
 449                 if (gl_support_arb_texture_non_power_of_two)
 450                         width2 = min(inwidth >> picmip, maxsize);
 451                 else
 452                 {
 453                         for (width2 = 1;width2 < inwidth;width2 <<= 1);
 454                         for (width2 >>= picmip;width2 > maxsize;width2 >>= 1);
 455                 }
 456                 *outwidth = max(1, width2);
 457         }
 458         if (outheight)
 459         {
 460                 if (gl_support_arb_texture_non_power_of_two)
 461                         height2 = min(inheight >> picmip, maxsize);
 462                 else
 463                 {
 464                         for (height2 = 1;height2 < inheight;height2 <<= 1);
 465                         for (height2 >>= picmip;height2 > maxsize;height2 >>= 1);
 466                 }
 467                 *outheight = max(1, height2);
 468         }
 469         if (outdepth)
 470         {
 471                 if (gl_support_arb_texture_non_power_of_two)
 472                         depth2 = min(indepth >> picmip, maxsize);
 473                 else
 474                 {
 475                         for (depth2 = 1;depth2 < indepth;depth2 <<= 1);
 476                         for (depth2 >>= picmip;depth2 > maxsize;depth2 >>= 1);
 477                 }
 478                 *outdepth = max(1, depth2);
 479         }
 480 }
 481
 482
 483 static int R_CalcTexelDataSize (gltexture_t *glt)
 484 {
 485         int width2, height2, depth2, size;
 486
 487         GL_Texture_CalcImageSize(glt->texturetype, glt->flags, glt->inputwidth, glt->inputheight, glt->inputdepth, &width2, &height2, &depth2);
 488
 489         size = width2 * height2 * depth2;
 490
 491         if (glt->flags & TEXF_MIPMAP)
 492         {
 493                 while (width2 > 1 || height2 > 1 || depth2 > 1)
 494                 {
 495                         if (width2 > 1)
 496                                 width2 >>= 1;
 497                         if (height2 > 1)
 498                                 height2 >>= 1;
 499                         if (depth2 > 1)
 500                                 depth2 >>= 1;
 501                         size += width2 * height2 * depth2;
 502                 }
 503         }
 504
 505         return (int)(size * glt->textype->glinternalbytesperpixel) * glt->sides;
 506 }
 507
 508 void R_TextureStats_Print(qboolean printeach, qboolean printpool, qboolean printtotal)
 509 {
 510         int glsize;
 511         int isloaded;
 512         int pooltotal = 0, pooltotalt = 0, pooltotalp = 0, poolloaded = 0, poolloadedt = 0, poolloadedp = 0;
 513         int sumtotal = 0, sumtotalt = 0, sumtotalp = 0, sumloaded = 0, sumloadedt = 0, sumloadedp = 0;
 514         gltexture_t *glt;
 515         gltexturepool_t *pool;
 516         if (printeach)
 517                 Con_Print("glsize input loaded mip alpha name\n");
 518         for (pool = gltexturepoolchain;pool;pool = pool->next)
 519         {
 520                 pooltotal = 0;
 521                 pooltotalt = 0;
 522                 pooltotalp = 0;
 523                 poolloaded = 0;
 524                 poolloadedt = 0;
 525                 poolloadedp = 0;
 526                 for (glt = pool->gltchain;glt;glt = glt->chain)
 527                 {
 528                         glsize = R_CalcTexelDataSize(glt);
 529                         isloaded = !(glt->flags & GLTEXF_UPLOAD);
 530                         pooltotal++;
 531                         pooltotalt += glsize;
 532                         pooltotalp += glt->inputdatasize;
 533                         if (isloaded)
 534                         {
 535                                 poolloaded++;
 536                                 poolloadedt += glsize;
 537                                 poolloadedp += glt->inputdatasize;
 538                         }
 539                         if (printeach)
 540                                 Con_Printf("%c%4i%c%c%4i%c %s %s %s %s\n", isloaded ? '[' : ' ', (glsize + 1023) / 1024, isloaded ? ']' : ' ', glt->inputtexels ? '[' : ' ', (glt->inputdatasize + 1023) / 1024, glt->inputtexels ? ']' : ' ', isloaded ? "loaded" : "      ", (glt->flags & TEXF_MIPMAP) ? "mip" : "   ", (glt->flags & TEXF_ALPHA) ? "alpha" : "     ", glt->identifier);
 541                 }
 542                 if (printpool)
 543                         Con_Printf("texturepool %10p total: %i (%.3fMB, %.3fMB original), uploaded %i (%.3fMB, %.3fMB original), upload on demand %i (%.3fMB, %.3fMB original)\n", pool, pooltotal, pooltotalt / 1048576.0, pooltotalp / 1048576.0, poolloaded, poolloadedt / 1048576.0, poolloadedp / 1048576.0, pooltotal - poolloaded, (pooltotalt - poolloadedt) / 1048576.0, (pooltotalp - poolloadedp) / 1048576.0);
 544                 sumtotal += pooltotal;
 545                 sumtotalt += pooltotalt;
 546                 sumtotalp += pooltotalp;
 547                 sumloaded += poolloaded;
 548                 sumloadedt += poolloadedt;
 549                 sumloadedp += poolloadedp;
 550         }
 551         if (printtotal)
 552                 Con_Printf("textures total: %i (%.3fMB, %.3fMB original), uploaded %i (%.3fMB, %.3fMB original), upload on demand %i (%.3fMB, %.3fMB original)\n", sumtotal, sumtotalt / 1048576.0, sumtotalp / 1048576.0, sumloaded, sumloadedt / 1048576.0, sumloadedp / 1048576.0, sumtotal - sumloaded, (sumtotalt - sumloadedt) / 1048576.0, (sumtotalp - sumloadedp) / 1048576.0);
 553 }
 554
 555 static void R_TextureStats_f(void)
 556 {
 557         R_TextureStats_Print(true, true, true);
 558 }
 559
 560 static void r_textures_start(void)
 561 {
 562         // LordHavoc: allow any alignment
 563         CHECKGLERROR
 564         qglPixelStorei(GL_UNPACK_ALIGNMENT, 1);CHECKGLERROR
 565         qglPixelStorei(GL_PACK_ALIGNMENT, 1);CHECKGLERROR
 566
 567         texturemempool = Mem_AllocPool("texture management", 0, NULL);
 568
 569         // Disable JPEG screenshots if the DLL isn't loaded
 570         if (! JPEG_OpenLibrary ())
 571                 Cvar_SetValueQuick (&scr_screenshot_jpeg, 0);
 572         // TODO: support png screenshots?
 573         PNG_OpenLibrary ();
 574 }
 575
 576 static void r_textures_shutdown(void)
 577 {
 578         rtexturepool_t *temp;
 579
 580         JPEG_CloseLibrary ();
 581
 582         while(gltexturepoolchain)
 583         {
 584                 temp = (rtexturepool_t *) gltexturepoolchain;
 585                 R_FreeTexturePool(&temp);
 586         }
 587
 588         resizebuffersize = 0;
 589         texturebuffersize = 0;
 590         resizebuffer = NULL;
 591         colorconvertbuffer = NULL;
 592         texturebuffer = NULL;
 593         Mem_FreePool(&texturemempool);
 594 }
 595
 596 static void r_textures_newmap(void)
 597 {
 598 }
 599
 600 void R_Textures_Init (void)
 601 {
 602         Cmd_AddCommand("gl_texturemode", &GL_TextureMode_f, "set texture filtering mode (GL_NEAREST, GL_LINEAR, GL_LINEAR_MIPMAP_LINEAR, etc)");
 603         Cmd_AddCommand("r_texturestats", R_TextureStats_f, "print information about all loaded textures and some statistics");
 604         Cvar_RegisterVariable (&gl_max_size);
 605         Cvar_RegisterVariable (&gl_picmip);
 606         Cvar_RegisterVariable (&r_lerpimages);
 607         Cvar_RegisterVariable (&r_precachetextures);
 608         Cvar_RegisterVariable (&gl_texture_anisotropy);
 609         Cvar_RegisterVariable (&gl_texturecompression);
 610         Cvar_RegisterVariable (&gl_texturecompression_color);
 611         Cvar_RegisterVariable (&gl_texturecompression_normal);
 612         Cvar_RegisterVariable (&gl_texturecompression_gloss);
 613         Cvar_RegisterVariable (&gl_texturecompression_glow);
 614         Cvar_RegisterVariable (&gl_texturecompression_2d);
 615         Cvar_RegisterVariable (&gl_texturecompression_q3bsplightmaps);
 616         Cvar_RegisterVariable (&gl_texturecompression_q3bspdeluxemaps);
 617         Cvar_RegisterVariable (&gl_texturecompression_sky);
 618         Cvar_RegisterVariable (&gl_texturecompression_lightcubemaps);
 619
 620         R_RegisterModule("R_Textures", r_textures_start, r_textures_shutdown, r_textures_newmap);
 621 }
 622
 623 void R_Textures_Frame (void)
 624 {
 625         static int old_aniso = 0;
 626
 627         // could do procedural texture animation here, if we keep track of which
 628         // textures were accessed this frame...
 629
 630         // free the resize buffers
 631         resizebuffersize = 0;
 632         if (resizebuffer)
 633         {
 634                 Mem_Free(resizebuffer);
 635                 resizebuffer = NULL;
 636         }
 637         if (colorconvertbuffer)
 638         {
 639                 Mem_Free(colorconvertbuffer);
 640                 colorconvertbuffer = NULL;
 641         }
 642
 643         if (old_aniso != gl_texture_anisotropy.integer)
 644         {
 645                 gltexture_t *glt;
 646                 gltexturepool_t *pool;
 647                 GLint oldbindtexnum;
 648
 649                 old_aniso = bound(1, gl_texture_anisotropy.integer, gl_max_anisotropy);
 650
 651                 Cvar_SetValueQuick(&gl_texture_anisotropy, old_aniso);
 652
 653                 CHECKGLERROR
 654                 for (pool = gltexturepoolchain;pool;pool = pool->next)
 655                 {
 656                         for (glt = pool->gltchain;glt;glt = glt->chain)
 657                         {
 658                                 // only update already uploaded images
 659                                 if ((glt->flags & (GLTEXF_UPLOAD | TEXF_MIPMAP)) == TEXF_MIPMAP)
 660                                 {
 661                                         qglGetIntegerv(gltexturetypebindingenums[glt->texturetype], &oldbindtexnum);CHECKGLERROR
 662
 663                                         qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
 664                                         qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MAX_ANISOTROPY_EXT, old_aniso);CHECKGLERROR
 665
 666                                         qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
 667                                 }
 668                         }
 669                 }
 670         }
 671 }
 672
 673 void R_MakeResizeBufferBigger(int size)
 674 {
 675         if (resizebuffersize < size)
 676         {
 677                 resizebuffersize = size;
 678                 if (resizebuffer)
 679                         Mem_Free(resizebuffer);
 680                 if (colorconvertbuffer)
 681                         Mem_Free(colorconvertbuffer);
 682                 resizebuffer = (unsigned char *)Mem_Alloc(texturemempool, resizebuffersize);
 683                 colorconvertbuffer = (unsigned char *)Mem_Alloc(texturemempool, resizebuffersize);
 684                 if (!resizebuffer || !colorconvertbuffer)
 685                         Host_Error("R_Upload: out of memory");
 686         }
 687 }
 688
 689 static void GL_SetupTextureParameters(int flags, int texturetype)
 690 {
 691         int textureenum = gltexturetypeenums[texturetype];
 692         int wrapmode = ((flags & TEXF_CLAMP) && gl_support_clamptoedge) ? GL_CLAMP_TO_EDGE : GL_REPEAT;
 693
 694         CHECKGLERROR
 695
 696         if (gl_support_anisotropy && (flags & TEXF_MIPMAP))
 697         {
 698                 int aniso = bound(1, gl_texture_anisotropy.integer, gl_max_anisotropy);
 699                 if (gl_texture_anisotropy.integer != aniso)
 700                         Cvar_SetValueQuick(&gl_texture_anisotropy, aniso);
 701                 qglTexParameteri(textureenum, GL_TEXTURE_MAX_ANISOTROPY_EXT, aniso);CHECKGLERROR
 702         }
 703         qglTexParameteri(textureenum, GL_TEXTURE_WRAP_S, wrapmode);CHECKGLERROR
 704         qglTexParameteri(textureenum, GL_TEXTURE_WRAP_T, wrapmode);CHECKGLERROR
 705         if (gltexturetypedimensions[texturetype] >= 3)
 706         {
 707                 qglTexParameteri(textureenum, GL_TEXTURE_WRAP_R, wrapmode);CHECKGLERROR
 708         }
 709
 710         CHECKGLERROR
 711         if (flags & TEXF_FORCENEAREST)
 712         {
 713                 if (flags & TEXF_MIPMAP)
 714                 {
 715                         qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);CHECKGLERROR
 716                 }
 717                 else
 718                 {
 719                         qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_NEAREST);CHECKGLERROR
 720                 }
 721                 qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, GL_NEAREST);CHECKGLERROR
 722         }
 723         else if (flags & TEXF_FORCELINEAR)
 724         {
 725                 if (flags & TEXF_MIPMAP)
 726                 {
 727                         if (gl_filter_min == GL_NEAREST_MIPMAP_LINEAR || gl_filter_min == GL_LINEAR_MIPMAP_LINEAR)
 728                         {
 729                                 qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);CHECKGLERROR
 730                         }
 731                         else
 732                         {
 733                                 qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);CHECKGLERROR
 734                         }
 735                 }
 736                 else
 737                 {
 738                         qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR);CHECKGLERROR
 739                 }
 740                 qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, GL_LINEAR);CHECKGLERROR
 741         }
 742         else
 743         {
 744                 if (flags & TEXF_MIPMAP)
 745                 {
 746                         qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_min);CHECKGLERROR
 747                 }
 748                 else
 749                 {
 750                         qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_mag);CHECKGLERROR
 751                 }
 752                 qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, gl_filter_mag);CHECKGLERROR
 753         }
 754
 755         CHECKGLERROR
 756 }
 757
 758 static void R_Upload(gltexture_t *glt, unsigned char *data, int fragx, int fragy, int fragz, int fragwidth, int fragheight, int fragdepth)
 759 {
 760         int i, mip, width, height, depth;
 761         GLint oldbindtexnum;
 762         unsigned char *prevbuffer;
 763         prevbuffer = data;
 764
 765         CHECKGLERROR
 766
 767         // we need to restore the texture binding after finishing the upload
 768         qglGetIntegerv(gltexturetypebindingenums[glt->texturetype], &oldbindtexnum);CHECKGLERROR
 769         qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
 770
 771         // these are rounded up versions of the size to do better resampling
 772         if (gl_support_arb_texture_non_power_of_two)
 773         {
 774                 width = glt->inputwidth;
 775                 height = glt->inputheight;
 776                 depth = glt->inputdepth;
 777         }
 778         else
 779         {
 780                 for (width  = 1;width  < glt->inputwidth ;width  <<= 1);
 781                 for (height = 1;height < glt->inputheight;height <<= 1);
 782                 for (depth  = 1;depth  < glt->inputdepth ;depth  <<= 1);
 783         }
 784
 785         R_MakeResizeBufferBigger(width * height * depth * glt->sides * glt->bytesperpixel);
 786         R_MakeResizeBufferBigger(fragwidth * fragheight * fragdepth * glt->sides * glt->bytesperpixel);
 787
 788         if (prevbuffer == NULL)
 789         {
 790                 memset(resizebuffer, 0, fragwidth * fragheight * fragdepth * glt->bytesperpixel);
 791                 prevbuffer = resizebuffer;
 792         }
 793         else if (glt->textype->textype == TEXTYPE_PALETTE)
 794         {
 795                 // promote paletted to RGBA, so we only have to worry about RGB and
 796                 // RGBA in the rest of this code
 797                 Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, fragwidth * fragheight * fragdepth * glt->sides, glt->palette);
 798                 prevbuffer = colorconvertbuffer;
 799         }
 800
 801         if ((glt->flags & (TEXF_MIPMAP | TEXF_PICMIP | GLTEXF_UPLOAD)) == 0 && glt->inputwidth == glt->tilewidth && glt->inputheight == glt->tileheight && glt->inputdepth == glt->tiledepth)
 802         {
 803                 // update a portion of the image
 804                 switch(glt->texturetype)
 805                 {
 806                 case GLTEXTURETYPE_1D:
 807                         qglTexSubImage1D(GL_TEXTURE_1D, 0, fragx, fragwidth, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
 808                         break;
 809                 case GLTEXTURETYPE_2D:
 810                         qglTexSubImage2D(GL_TEXTURE_2D, 0, fragx, fragy, fragwidth, fragheight, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
 811                         break;
 812                 case GLTEXTURETYPE_3D:
 813                         qglTexSubImage3D(GL_TEXTURE_3D, 0, fragx, fragy, fragz, fragwidth, fragheight, fragdepth, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
 814                         break;
 815                 default:
 816                         Host_Error("R_Upload: partial update of type other than 1D, 2D, or 3D");
 817                         break;
 818                 }
 819         }
 820         else
 821         {
 822                 if (fragx || fragy || fragz || glt->inputwidth != fragwidth || glt->inputheight != fragheight || glt->inputdepth != fragdepth)
 823                         Host_Error("R_Upload: partial update not allowed on initial upload or in combination with PICMIP or MIPMAP\n");
 824
 825                 // upload the image for the first time
 826                 glt->flags &= ~GLTEXF_UPLOAD;
 827
 828                 // cubemaps contain multiple images and thus get processed a bit differently
 829                 if (glt->texturetype != GLTEXTURETYPE_CUBEMAP)
 830                 {
 831                         if (glt->inputwidth != width || glt->inputheight != height || glt->inputdepth != depth)
 832                         {
 833                                 Image_Resample(prevbuffer, glt->inputwidth, glt->inputheight, glt->inputdepth, resizebuffer, width, height, depth, glt->bytesperpixel, r_lerpimages.integer);
 834                                 prevbuffer = resizebuffer;
 835                         }
 836                         // picmip/max_size
 837                         while (width > glt->tilewidth || height > glt->tileheight || depth > glt->tiledepth)
 838                         {
 839                                 Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, glt->tilewidth, glt->tileheight, glt->tiledepth, glt->bytesperpixel);
 840                                 prevbuffer = resizebuffer;
 841                         }
 842                 }
 843                 mip = 0;
 844                 if (gl_support_texture_compression)
 845                 {
 846                         if (gl_texturecompression.integer >= 2)
 847                                 qglHint(GL_TEXTURE_COMPRESSION_HINT_ARB, GL_NICEST);
 848                         else
 849                                 qglHint(GL_TEXTURE_COMPRESSION_HINT_ARB, GL_FASTEST);
 850                         CHECKGLERROR
 851                 }
 852                 switch(glt->texturetype)
 853                 {
 854                 case GLTEXTURETYPE_1D:
 855                         qglTexImage1D(GL_TEXTURE_1D, mip++, glt->glinternalformat, width, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
 856                         if (glt->flags & TEXF_MIPMAP)
 857                         {
 858                                 while (width > 1 || height > 1 || depth > 1)
 859                                 {
 860                                         Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->bytesperpixel);
 861                                         prevbuffer = resizebuffer;
 862                                         qglTexImage1D(GL_TEXTURE_1D, mip++, glt->glinternalformat, width, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
 863                                 }
 864                         }
 865                         break;
 866                 case GLTEXTURETYPE_2D:
 867                         qglTexImage2D(GL_TEXTURE_2D, mip++, glt->glinternalformat, width, height, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
 868                         if (glt->flags & TEXF_MIPMAP)
 869                         {
 870                                 while (width > 1 || height > 1 || depth > 1)
 871                                 {
 872                                         Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->bytesperpixel);
 873                                         prevbuffer = resizebuffer;
 874                                         qglTexImage2D(GL_TEXTURE_2D, mip++, glt->glinternalformat, width, height, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
 875                                 }
 876                         }
 877                         break;
 878                 case GLTEXTURETYPE_3D:
 879                         qglTexImage3D(GL_TEXTURE_3D, mip++, glt->glinternalformat, width, height, depth, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
 880                         if (glt->flags & TEXF_MIPMAP)
 881                         {
 882                                 while (width > 1 || height > 1 || depth > 1)
 883                                 {
 884                                         Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->bytesperpixel);
 885                                         prevbuffer = resizebuffer;
 886                                         qglTexImage3D(GL_TEXTURE_3D, mip++, glt->glinternalformat, width, height, depth, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
 887                                 }
 888                         }
 889                         break;
 890                 case GLTEXTURETYPE_CUBEMAP:
 891                         // convert and upload each side in turn,
 892                         // from a continuous block of input texels
 893                         texturebuffer = prevbuffer;
 894                         for (i = 0;i < 6;i++)
 895                         {
 896                                 prevbuffer = texturebuffer;
 897                                 texturebuffer += glt->inputwidth * glt->inputheight * glt->inputdepth * glt->textype->inputbytesperpixel;
 898                                 if (glt->inputwidth != width || glt->inputheight != height || glt->inputdepth != depth)
 899                                 {
 900                                         Image_Resample(prevbuffer, glt->inputwidth, glt->inputheight, glt->inputdepth, resizebuffer, width, height, depth, glt->bytesperpixel, r_lerpimages.integer);
 901                                         prevbuffer = resizebuffer;
 902                                 }
 903                                 // picmip/max_size
 904                                 while (width > glt->tilewidth || height > glt->tileheight || depth > glt->tiledepth)
 905                                 {
 906                                         Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, glt->tilewidth, glt->tileheight, glt->tiledepth, glt->bytesperpixel);
 907                                         prevbuffer = resizebuffer;
 908                                 }
 909                                 mip = 0;
 910                                 qglTexImage2D(cubemapside[i], mip++, glt->glinternalformat, width, height, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
 911                                 if (glt->flags & TEXF_MIPMAP)
 912                                 {
 913                                         while (width > 1 || height > 1 || depth > 1)
 914                                         {
 915                                                 Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->bytesperpixel);
 916                                                 prevbuffer = resizebuffer;
 917                                                 qglTexImage2D(cubemapside[i], mip++, glt->glinternalformat, width, height, 0, glt->glformat, GL_UNSIGNED_BYTE, prevbuffer);CHECKGLERROR
 918                                         }
 919                                 }
 920                         }
 921                         break;
 922                 }
 923                 GL_SetupTextureParameters(glt->flags, glt->texturetype);
 924         }
 925         qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
 926 }
 927
 928 static void R_UploadTexture (gltexture_t *glt)
 929 {
 930         if (!(glt->flags & GLTEXF_UPLOAD))
 931                 return;
 932
 933         CHECKGLERROR
 934         qglGenTextures(1, (GLuint *)&glt->texnum);CHECKGLERROR
 935         R_Upload(glt, glt->inputtexels, 0, 0, 0, glt->inputwidth, glt->inputheight, glt->inputdepth);
 936         if (glt->inputtexels)
 937         {
 938                 Mem_Free(glt->inputtexels);
 939                 glt->inputtexels = NULL;
 940                 glt->flags |= GLTEXF_DESTROYED;
 941         }
 942         else if (glt->flags & GLTEXF_DESTROYED)
 943                 Con_Printf("R_UploadTexture: Texture %s already uploaded and destroyed.  Can not upload original image again.  Uploaded blank texture.\n", glt->identifier);
 944 }
 945
 946 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 unsigned char *data, const unsigned int *palette)
 947 {
 948         int i, size;
 949         gltexture_t *glt;
 950         gltexturepool_t *pool = (gltexturepool_t *)rtexturepool;
 951         textypeinfo_t *texinfo;
 952
 953         if (cls.state == ca_dedicated)
 954                 return NULL;
 955
 956         if (texturetype == GLTEXTURETYPE_CUBEMAP && !gl_texturecubemap)
 957         {
 958                 Con_Printf ("R_LoadTexture: cubemap texture not supported by driver\n");
 959                 return NULL;
 960         }
 961         if (texturetype == GLTEXTURETYPE_3D && !gl_texture3d)
 962         {
 963                 Con_Printf ("R_LoadTexture: 3d texture not supported by driver\n");
 964                 return NULL;
 965         }
 966
 967         texinfo = R_GetTexTypeInfo(textype, flags);
 968         size = width * height * depth * sides * texinfo->inputbytesperpixel;
 969         if (size < 1)
 970         {
 971                 Con_Printf ("R_LoadTexture: bogus texture size (%dx%dx%dx%dbppx%dsides = %d bytes)\n", width, height, depth, texinfo->inputbytesperpixel * 8, sides, size);
 972                 return NULL;
 973         }
 974
 975         // clear the alpha flag if the texture has no transparent pixels
 976         switch(textype)
 977         {
 978         case TEXTYPE_PALETTE:
 979                 if (flags & TEXF_ALPHA)
 980                 {
 981                         flags &= ~TEXF_ALPHA;
 982                         if (data)
 983                         {
 984                                 for (i = 0;i < size;i++)
 985                                 {
 986                                         if (((unsigned char *)&palette[data[i]])[3] < 255)
 987                                         {
 988                                                 flags |= TEXF_ALPHA;
 989                                                 break;
 990                                         }
 991                                 }
 992                         }
 993                 }
 994                 break;
 995         case TEXTYPE_RGB:
 996                 if (flags & TEXF_ALPHA)
 997                         Host_Error("R_LoadTexture: RGB has no alpha, don't specify TEXF_ALPHA");
 998                 break;
 999         case TEXTYPE_RGBA:
1000                 if (flags & TEXF_ALPHA)
1001                 {
1002                         flags &= ~TEXF_ALPHA;
1003                         if (data)
1004                         {
1005                                 for (i = 3;i < size;i += 4)
1006                                 {
1007                                         if (data[i] < 255)
1008                                         {
1009                                                 flags |= TEXF_ALPHA;
1010                                                 break;
1011                                         }
1012                                 }
1013                         }
1014                 }
1015                 break;
1016         default:
1017                 Host_Error("R_LoadTexture: unknown texture type");
1018         }
1019
1020         glt = (gltexture_t *)Mem_Alloc(texturemempool, sizeof(gltexture_t));
1021         if (identifier)
1022                 strlcpy (glt->identifier, identifier, sizeof(glt->identifier));
1023         glt->pool = pool;
1024         glt->chain = pool->gltchain;
1025         pool->gltchain = glt;
1026         glt->inputwidth = width;
1027         glt->inputheight = height;
1028         glt->inputdepth = depth;
1029         glt->flags = flags | GLTEXF_UPLOAD;
1030         glt->textype = texinfo;
1031         glt->texturetype = texturetype;
1032         glt->inputdatasize = size;
1033         glt->palette = palette;
1034         glt->glinternalformat = texinfo->glinternalformat;
1035         glt->glformat = texinfo->glformat;
1036         glt->bytesperpixel = texinfo->internalbytesperpixel;
1037         glt->sides = glt->texturetype == GLTEXTURETYPE_CUBEMAP ? 6 : 1;
1038         glt->texnum = -1;
1039         // init the dynamic texture attributes, too [11/22/2007 Black]
1040         glt->dirtytexnum = 0;
1041         glt->updatecallback = NULL;
1042         glt->updatacallback_data = NULL;
1043
1044         if (data)
1045         {
1046                 glt->inputtexels = (unsigned char *)Mem_Alloc(texturemempool, size);
1047                 memcpy(glt->inputtexels, data, size);
1048         }
1049         else
1050                 glt->inputtexels = NULL;
1051
1052         GL_Texture_CalcImageSize(glt->texturetype, glt->flags, glt->inputwidth, glt->inputheight, glt->inputdepth, &glt->tilewidth, &glt->tileheight, &glt->tiledepth);
1053         R_PrecacheTexture(glt);
1054
1055         return (rtexture_t *)glt;
1056 }
1057
1058 rtexture_t *R_LoadTexture1D(rtexturepool_t *rtexturepool, const char *identifier, int width, const unsigned char *data, int textype, int flags, const unsigned int *palette)
1059 {
1060         return R_SetupTexture(rtexturepool, identifier, width, 1, 1, 1, flags, textype, GLTEXTURETYPE_1D, data, palette);
1061 }
1062
1063 rtexture_t *R_LoadTexture2D(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, const unsigned char *data, int textype, int flags, const unsigned int *palette)
1064 {
1065         return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, flags, textype, GLTEXTURETYPE_2D, data, palette);
1066 }
1067
1068 rtexture_t *R_LoadTexture3D(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int depth, const unsigned char *data, int textype, int flags, const unsigned int *palette)
1069 {
1070         return R_SetupTexture(rtexturepool, identifier, width, height, depth, 1, flags, textype, GLTEXTURETYPE_3D, data, palette);
1071 }
1072
1073 rtexture_t *R_LoadTextureCubeMap(rtexturepool_t *rtexturepool, const char *identifier, int width, const unsigned char *data, int textype, int flags, const unsigned int *palette)
1074 {
1075         return R_SetupTexture(rtexturepool, identifier, width, width, 1, 6, flags, textype, GLTEXTURETYPE_CUBEMAP, data, palette);
1076 }
1077
1078 int R_TextureHasAlpha(rtexture_t *rt)
1079 {
1080         return rt ? (((gltexture_t *)rt)->flags & TEXF_ALPHA) != 0 : false;
1081 }
1082
1083 int R_TextureWidth(rtexture_t *rt)
1084 {
1085         return rt ? ((gltexture_t *)rt)->inputwidth : 0;
1086 }
1087
1088 int R_TextureHeight(rtexture_t *rt)
1089 {
1090         return rt ? ((gltexture_t *)rt)->inputheight : 0;
1091 }
1092
1093 void R_UpdateTexture(rtexture_t *rt, unsigned char *data, int x, int y, int width, int height)
1094 {
1095         gltexture_t *glt;
1096         if (rt == NULL)
1097                 Host_Error("R_UpdateTexture: no texture supplied");
1098         if (data == NULL)
1099                 Host_Error("R_UpdateTexture: no data supplied");
1100         glt = (gltexture_t *)rt;
1101
1102         // we need it to be uploaded before we can update a part of it
1103         if (glt->flags & GLTEXF_UPLOAD)
1104                 R_UploadTexture(glt);
1105
1106         // update part of the texture
1107         R_Upload(glt, data, x, y, 0, width, height, 1);
1108 }
1109