6 cvar_t gl_max_size = {CVAR_SAVE, "gl_max_size", "2048"};
7 cvar_t gl_max_scrapsize = {CVAR_SAVE, "gl_max_scrapsize", "256"};
8 cvar_t gl_picmip = {CVAR_SAVE, "gl_picmip", "0"};
9 cvar_t r_lerpimages = {CVAR_SAVE, "r_lerpimages", "1"};
10 cvar_t r_precachetextures = {CVAR_SAVE, "r_precachetextures", "1"};
11 cvar_t gl_texture_anisotropy = {CVAR_SAVE, "gl_texture_anisotropy", "1"};
13 int gl_filter_min = GL_LINEAR_MIPMAP_LINEAR;
14 int gl_filter_mag = GL_LINEAR;
17 static mempool_t *texturemempool;
18 static mempool_t *texturedatamempool;
19 static mempool_t *textureprocessingmempool;
21 // note: this must not conflict with TEXF_ flags in r_textures.h
22 // cleared when a texture is uploaded
23 #define GLTEXF_UPLOAD 0x00010000
24 // bitmask for mismatch checking
25 #define GLTEXF_IMPORTANTBITS (0)
26 // set when image is uploaded and freed
27 #define GLTEXF_DESTROYED 0x00040000
29 // size of images which hold fragment textures, ignores picmip and max_size
30 static int block_size;
35 int inputbytesperpixel;
36 int internalbytesperpixel;
42 static textypeinfo_t textype_palette = {TEXTYPE_PALETTE, 1, 4, GL_RGBA , 3};
43 static textypeinfo_t textype_rgb = {TEXTYPE_RGB , 3, 3, GL_RGB , 3};
44 static textypeinfo_t textype_rgba = {TEXTYPE_RGBA , 4, 4, GL_RGBA , 3};
45 static textypeinfo_t textype_palette_alpha = {TEXTYPE_PALETTE, 1, 4, GL_RGBA , 4};
46 static textypeinfo_t textype_rgba_alpha = {TEXTYPE_RGBA , 4, 4, GL_RGBA , 4};
47 static textypeinfo_t textype_dsdt = {TEXTYPE_DSDT , 2, 2, GL_DSDT_NV, GL_DSDT8_NV};
49 // a tiling texture (most common type)
50 #define GLIMAGETYPE_TILE 0
51 // a fragments texture (contains one or more fragment textures)
52 #define GLIMAGETYPE_FRAGMENTS 1
54 #define GLTEXTURETYPE_1D 0
55 #define GLTEXTURETYPE_2D 1
56 #define GLTEXTURETYPE_3D 2
57 #define GLTEXTURETYPE_CUBEMAP 3
59 static int gltexturetypeenums[4] = {GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP_ARB};
60 static int gltexturetypebindingenums[4] = {GL_TEXTURE_BINDING_1D, GL_TEXTURE_BINDING_2D, GL_TEXTURE_BINDING_3D, GL_TEXTURE_BINDING_CUBE_MAP_ARB};
61 static int gltexturetypedimensions[4] = {1, 2, 3, 2};
62 static int cubemapside[6] =
64 GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB,
65 GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB,
66 GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB,
67 GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB,
68 GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB,
69 GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
72 // a gltextureimage can have one (or more if fragments) gltextures inside
73 typedef struct gltextureimage_s
75 struct gltextureimage_s *imagechain;
77 int type; // one of the GLIMAGETYPE_ values
78 int texturetype; // one of the GLTEXTURETYPE_ values
79 int sides; // 1 or 6 depending on texturetype
80 int texnum; // GL texture slot number
81 int width, height, depth; // 3D texture support
82 int bytesperpixel; // bytes per pixel
83 int glformat; // GL_RGB or GL_RGBA
84 int glinternalformat; // 3 or 4
86 short *blockallocation; // fragment allocation (2D only)
90 typedef struct gltexture_s
92 // this field is exposed to the R_GetTexture macro, for speed reasons
93 // (must be identical in rtexture_t)
94 int texnum; // GL texture slot number
96 // pointer to texturepool (check this to see if the texture is allocated)
97 struct gltexturepool_s *pool;
98 // pointer to next texture in texturepool chain
99 struct gltexture_s *chain;
100 // pointer into gltextureimage array
101 gltextureimage_t *image;
102 // name of the texture (this might be removed someday), no duplicates
104 // location in the image, and size
105 int x, y, z, width, height, depth;
106 // copy of the original texture(s) supplied to the upload function, for
107 // delayed uploads (non-precached)
109 // original data size in *inputtexels
111 // flags supplied to the LoadTexture function
112 // (might be altered to remove TEXF_ALPHA), and GLTEXF_ private flags
114 // pointer to one of the textype_ structs
115 textypeinfo_t *textype;
116 // one of the GLTEXTURETYPE_ values
118 // palette if the texture is TEXTYPE_PALETTE
119 const unsigned int *palette;
123 #define TEXTUREPOOL_SENTINEL 0xC0DEDBAD
125 typedef struct gltexturepool_s
127 unsigned int sentinel;
128 struct gltextureimage_s *imagechain;
129 struct gltexture_s *gltchain;
130 struct gltexturepool_s *next;
134 static gltexturepool_t *gltexturepoolchain = NULL;
136 static qbyte *resizebuffer = NULL, *colorconvertbuffer;
137 static int resizebuffersize = 0;
138 static qbyte *texturebuffer;
139 static int texturebuffersize = 0;
141 static int realmaxsize = 0;
143 static textypeinfo_t *R_GetTexTypeInfo(int textype, int flags)
145 if (flags & TEXF_ALPHA)
149 case TEXTYPE_PALETTE:
150 return &textype_palette_alpha;
152 Host_Error("R_GetTexTypeInfo: RGB format has no alpha, TEXF_ALPHA not allowed\n");
155 return &textype_rgba_alpha;
157 Host_Error("R_GetTexTypeInfo: unknown texture format\n");
165 case TEXTYPE_PALETTE:
166 return &textype_palette;
170 return &textype_rgba;
172 return &textype_dsdt;
174 Host_Error("R_GetTexTypeInfo: unknown texture format\n");
180 static void R_UploadTexture(gltexture_t *t);
182 static void R_PrecacheTexture(gltexture_t *glt)
186 if (glt->flags & TEXF_ALWAYSPRECACHE)
188 else if (r_precachetextures.integer >= 2)
190 else if (r_precachetextures.integer >= 1)
191 if (glt->flags & TEXF_PRECACHE)
195 R_UploadTexture(glt);
198 int R_RealGetTexture(rtexture_t *rt)
203 glt = (gltexture_t *)rt;
204 if (glt->flags & GLTEXF_UPLOAD)
205 R_UploadTexture(glt);
206 glt->texnum = glt->image->texnum;
207 return glt->image->texnum;
213 void R_FreeTexture(rtexture_t *rt)
215 gltexture_t *glt, **gltpointer;
216 gltextureimage_t *image, **gltimagepointer;
218 glt = (gltexture_t *)rt;
220 Host_Error("R_FreeTexture: texture == NULL\n");
222 for (gltpointer = &glt->pool->gltchain;*gltpointer && *gltpointer != glt;gltpointer = &(*gltpointer)->chain);
223 if (*gltpointer == glt)
224 *gltpointer = glt->chain;
226 Host_Error("R_FreeTexture: texture \"%s\" not linked in pool\n", glt->identifier);
228 // note: if freeing a fragment texture, this will not make the claimed
229 // space available for new textures unless all other fragments in the
230 // image are also freed
234 image->texturecount--;
235 if (image->texturecount < 1)
237 for (gltimagepointer = &glt->pool->imagechain;*gltimagepointer && *gltimagepointer != image;gltimagepointer = &(*gltimagepointer)->imagechain);
238 if (*gltimagepointer == image)
239 *gltimagepointer = image->imagechain;
241 Host_Error("R_FreeTexture: image not linked in pool\n");
243 qglDeleteTextures(1, &image->texnum);
244 if (image->blockallocation)
245 Mem_Free(image->blockallocation);
251 Mem_Free(glt->identifier);
252 if (glt->inputtexels)
253 Mem_Free(glt->inputtexels);
258 static gltexture_t *R_FindTexture (gltexturepool_t *pool, char *identifier)
265 for (glt = pool->gltchain;glt;glt = glt->chain)
266 if (glt->identifier && !strcmp (identifier, glt->identifier))
273 rtexturepool_t *R_AllocTexturePool(void)
275 gltexturepool_t *pool;
276 if (texturemempool == NULL)
278 pool = Mem_Alloc(texturemempool, sizeof(gltexturepool_t));
281 pool->next = gltexturepoolchain;
282 gltexturepoolchain = pool;
283 pool->sentinel = TEXTUREPOOL_SENTINEL;
284 return (rtexturepool_t *)pool;
287 void R_FreeTexturePool(rtexturepool_t **rtexturepool)
289 gltexturepool_t *pool, **poolpointer;
290 if (rtexturepool == NULL)
292 if (*rtexturepool == NULL)
294 pool = (gltexturepool_t *)(*rtexturepool);
295 *rtexturepool = NULL;
296 if (pool->sentinel != TEXTUREPOOL_SENTINEL)
297 Host_Error("R_FreeTexturePool: pool already freed\n");
298 for (poolpointer = &gltexturepoolchain;*poolpointer && *poolpointer != pool;poolpointer = &(*poolpointer)->next);
299 if (*poolpointer == pool)
300 *poolpointer = pool->next;
302 Host_Error("R_FreeTexturePool: pool not linked\n");
303 while (pool->gltchain)
304 R_FreeTexture((rtexture_t *)pool->gltchain);
305 if (pool->imagechain)
306 Sys_Error("R_FreeTexturePool: not all images freed\n");
314 int minification, magnification;
318 static glmode_t modes[] =
320 {"GL_NEAREST", GL_NEAREST, GL_NEAREST},
321 {"GL_LINEAR", GL_LINEAR, GL_LINEAR},
322 {"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST},
323 {"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR},
324 {"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST},
325 {"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
328 static void GL_TextureMode_f (void)
332 gltextureimage_t *image;
333 gltexturepool_t *pool;
337 for (i = 0;i < 6;i++)
339 if (gl_filter_min == modes[i].minification)
341 Con_Printf("%s\n", modes[i].name);
345 Con_Print("current filter is unknown???\n");
349 for (i = 0;i < 6;i++)
350 if (!strcasecmp (modes[i].name, Cmd_Argv(1) ) )
354 Con_Print("bad filter name\n");
358 gl_filter_min = modes[i].minification;
359 gl_filter_mag = modes[i].magnification;
361 // change all the existing mipmap texture objects
362 // FIXME: force renderer(/client/something?) restart instead?
363 for (pool = gltexturepoolchain;pool;pool = pool->next)
365 for (image = pool->imagechain;image;image = image->imagechain)
367 // only update already uploaded images
368 if (!(image->flags & GLTEXF_UPLOAD) && !(image->flags & (TEXF_FORCENEAREST | TEXF_FORCELINEAR)))
370 qglGetIntegerv(gltexturetypebindingenums[image->texturetype], &oldbindtexnum);
371 qglBindTexture(gltexturetypeenums[image->texturetype], image->texnum);
372 if (image->flags & TEXF_MIPMAP)
373 qglTexParameteri(gltexturetypeenums[image->texturetype], GL_TEXTURE_MIN_FILTER, gl_filter_min);
375 qglTexParameteri(gltexturetypeenums[image->texturetype], GL_TEXTURE_MIN_FILTER, gl_filter_mag);
376 qglTexParameteri(gltexturetypeenums[image->texturetype], GL_TEXTURE_MAG_FILTER, gl_filter_mag);
377 qglBindTexture(gltexturetypeenums[image->texturetype], oldbindtexnum);
383 static int R_CalcTexelDataSize (gltexture_t *glt)
385 int width2, height2, depth2, size, picmip;
386 if (glt->flags & TEXF_FRAGMENT)
387 size = glt->width * glt->height * glt->depth;
391 if (glt->flags & TEXF_PICMIP)
392 picmip = gl_picmip.integer;
393 if (gl_max_size.integer > realmaxsize)
394 Cvar_SetValue("gl_max_size", realmaxsize);
395 // calculate final size
396 for (width2 = 1;width2 < glt->width;width2 <<= 1);
397 for (height2 = 1;height2 < glt->height;height2 <<= 1);
398 for (depth2 = 1;depth2 < glt->depth;depth2 <<= 1);
399 for (width2 >>= picmip;width2 > gl_max_size.integer;width2 >>= 1);
400 for (height2 >>= picmip;height2 > gl_max_size.integer;height2 >>= 1);
401 for (depth2 >>= picmip;depth2 > gl_max_size.integer;depth2 >>= 1);
402 if (width2 < 1) width2 = 1;
403 if (height2 < 1) height2 = 1;
404 if (depth2 < 1) depth2 = 1;
407 if (glt->flags & TEXF_MIPMAP)
409 while (width2 > 1 || height2 > 1 || depth2 > 1)
411 size += width2 * height2 * depth2;
419 size++; // count the last 1x1 mipmap
422 size = width2 * height2 * depth2;
424 size *= glt->textype->internalbytesperpixel * glt->image->sides;
429 void R_TextureStats_Print(qboolean printeach, qboolean printpool, qboolean printtotal)
433 int pooltotal = 0, pooltotalt = 0, pooltotalp = 0, poolloaded = 0, poolloadedt = 0, poolloadedp = 0;
434 int sumtotal = 0, sumtotalt = 0, sumtotalp = 0, sumloaded = 0, sumloadedt = 0, sumloadedp = 0;
436 gltexturepool_t *pool;
438 Con_Print("glsize input loaded mip alpha name\n");
439 for (pool = gltexturepoolchain;pool;pool = pool->next)
447 for (glt = pool->gltchain;glt;glt = glt->chain)
449 glsize = R_CalcTexelDataSize(glt);
450 isloaded = !(glt->flags & GLTEXF_UPLOAD);
452 pooltotalt += glsize;
453 pooltotalp += glt->inputdatasize;
457 poolloadedt += glsize;
458 poolloadedp += glt->inputdatasize;
461 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 ? glt->identifier : "<unnamed>");
464 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);
465 sumtotal += pooltotal;
466 sumtotalt += pooltotalt;
467 sumtotalp += pooltotalp;
468 sumloaded += poolloaded;
469 sumloadedt += poolloadedt;
470 sumloadedp += poolloadedp;
473 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);
476 static void R_TextureStats_f(void)
478 R_TextureStats_Print(true, true, true);
481 char engineversion[40];
483 static void r_textures_start(void)
485 // deal with size limits of various drivers (3dfx in particular)
486 qglGetIntegerv(GL_MAX_TEXTURE_SIZE, &realmaxsize);
488 // LordHavoc: allow any alignment
489 qglPixelStorei(GL_UNPACK_ALIGNMENT, 1);
492 // use the largest scrap texture size we can (not sure if this is really a good idea)
493 for (block_size = 1;block_size < realmaxsize && block_size < gl_max_scrapsize.integer;block_size <<= 1);
495 texturemempool = Mem_AllocPool("Texture Info", 0, NULL);
496 texturedatamempool = Mem_AllocPool("Texture Storage (not yet uploaded)", 0, NULL);
497 textureprocessingmempool = Mem_AllocPool("Texture Processing Buffers", 0, NULL);
499 // Disable JPEG screenshots if the DLL isn't loaded
500 if (! JPEG_OpenLibrary ())
501 Cvar_SetValueQuick (&scr_screenshot_jpeg, 0);
504 static void r_textures_shutdown(void)
506 rtexturepool_t *temp;
508 JPEG_CloseLibrary ();
510 while(gltexturepoolchain)
512 temp = (rtexturepool_t *) gltexturepoolchain;
513 R_FreeTexturePool(&temp);
516 resizebuffersize = 0;
517 texturebuffersize = 0;
519 colorconvertbuffer = NULL;
520 texturebuffer = NULL;
521 Mem_FreePool(&texturemempool);
522 Mem_FreePool(&texturedatamempool);
523 Mem_FreePool(&textureprocessingmempool);
526 static void r_textures_newmap(void)
530 void R_Textures_Init (void)
532 Cmd_AddCommand("gl_texturemode", &GL_TextureMode_f);
533 Cmd_AddCommand("r_texturestats", R_TextureStats_f);
534 Cvar_RegisterVariable (&gl_max_scrapsize);
535 Cvar_RegisterVariable (&gl_max_size);
536 Cvar_RegisterVariable (&gl_picmip);
537 Cvar_RegisterVariable (&r_lerpimages);
538 Cvar_RegisterVariable (&r_precachetextures);
539 Cvar_RegisterVariable (&gl_texture_anisotropy);
541 R_RegisterModule("R_Textures", r_textures_start, r_textures_shutdown, r_textures_newmap);
544 void R_Textures_Frame (void)
546 static int old_aniso = 0;
548 // could do procedural texture animation here, if we keep track of which
549 // textures were accessed this frame...
551 // free the resize buffers
552 resizebuffersize = 0;
555 Mem_Free(resizebuffer);
558 if (colorconvertbuffer)
560 Mem_Free(colorconvertbuffer);
561 colorconvertbuffer = NULL;
564 if (old_aniso != gl_texture_anisotropy.integer)
566 gltextureimage_t *image;
567 gltexturepool_t *pool;
570 old_aniso = bound(1, gl_texture_anisotropy.integer, gl_max_anisotropy);
572 Cvar_SetValueQuick(&gl_texture_anisotropy, old_aniso);
574 for (pool = gltexturepoolchain;pool;pool = pool->next)
576 for (image = pool->imagechain;image;image = image->imagechain)
578 // only update already uploaded images
579 if (!(image->flags & GLTEXF_UPLOAD))
581 qglGetIntegerv(gltexturetypebindingenums[image->texturetype], &oldbindtexnum);
583 qglBindTexture(gltexturetypeenums[image->texturetype], image->texnum);
584 qglTexParameteri(gltexturetypeenums[image->texturetype], GL_TEXTURE_MAX_ANISOTROPY_EXT, old_aniso);CHECKGLERROR
586 qglBindTexture(gltexturetypeenums[image->texturetype], oldbindtexnum);
593 void R_MakeResizeBufferBigger(int size)
595 if (resizebuffersize < size)
597 resizebuffersize = size;
599 Mem_Free(resizebuffer);
600 if (colorconvertbuffer)
601 Mem_Free(colorconvertbuffer);
602 resizebuffer = Mem_Alloc(textureprocessingmempool, resizebuffersize);
603 colorconvertbuffer = Mem_Alloc(textureprocessingmempool, resizebuffersize);
604 if (!resizebuffer || !colorconvertbuffer)
605 Host_Error("R_Upload: out of memory\n");
609 static void GL_SetupTextureParameters(int flags, int texturetype)
611 int textureenum = gltexturetypeenums[texturetype];
612 int wrapmode = ((flags & TEXF_CLAMP) && gl_support_clamptoedge) ? GL_CLAMP_TO_EDGE : GL_REPEAT;
616 if (gl_support_anisotropy)
618 int aniso = bound(1, gl_texture_anisotropy.integer, gl_max_anisotropy);
619 if (gl_texture_anisotropy.integer != aniso)
620 Cvar_SetValueQuick(&gl_texture_anisotropy, aniso);
621 qglTexParameteri(textureenum, GL_TEXTURE_MAX_ANISOTROPY_EXT, aniso);CHECKGLERROR
623 qglTexParameteri(textureenum, GL_TEXTURE_WRAP_S, wrapmode);CHECKGLERROR
624 qglTexParameteri(textureenum, GL_TEXTURE_WRAP_T, wrapmode);CHECKGLERROR
625 if (gltexturetypedimensions[texturetype] >= 3)
627 qglTexParameteri(textureenum, GL_TEXTURE_WRAP_R, wrapmode);CHECKGLERROR
631 if (flags & TEXF_FORCENEAREST)
633 if (flags & TEXF_MIPMAP)
635 qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);CHECKGLERROR
639 qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_NEAREST);CHECKGLERROR
641 qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, GL_NEAREST);CHECKGLERROR
643 else if (flags & TEXF_FORCELINEAR)
645 if (flags & TEXF_MIPMAP)
647 if (gl_filter_min == GL_NEAREST_MIPMAP_LINEAR || gl_filter_min == GL_LINEAR_MIPMAP_LINEAR)
649 qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);CHECKGLERROR
653 qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);CHECKGLERROR
658 qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR);CHECKGLERROR
660 qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, GL_LINEAR);CHECKGLERROR
664 if (flags & TEXF_MIPMAP)
666 qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_min);CHECKGLERROR
670 qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_mag);CHECKGLERROR
672 qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, gl_filter_mag);CHECKGLERROR
678 static void R_Upload(gltexture_t *glt, qbyte *data)
680 int i, mip, width, height, depth;
687 glt->texnum = glt->image->texnum;
688 // we need to restore the texture binding after finishing the upload
689 qglGetIntegerv(gltexturetypebindingenums[glt->image->texturetype], &oldbindtexnum);
690 qglBindTexture(gltexturetypeenums[glt->image->texturetype], glt->image->texnum);
692 glt->flags &= ~GLTEXF_UPLOAD;
694 if (glt->flags & TEXF_FRAGMENT)
696 if (glt->image->flags & GLTEXF_UPLOAD)
698 glt->image->flags &= ~GLTEXF_UPLOAD;
699 Con_DPrint("uploaded new fragments image\n");
700 R_MakeResizeBufferBigger(glt->image->width * glt->image->height * glt->image->depth * glt->image->bytesperpixel);
701 memset(resizebuffer, 255, glt->image->width * glt->image->height * glt->image->depth * glt->image->bytesperpixel);
702 switch(glt->image->texturetype)
704 case GLTEXTURETYPE_1D:
705 qglTexImage1D(GL_TEXTURE_1D, 0, glt->image->glinternalformat, glt->image->width, 0, glt->image->glformat, GL_UNSIGNED_BYTE, resizebuffer);
708 case GLTEXTURETYPE_2D:
709 qglTexImage2D(GL_TEXTURE_2D, 0, glt->image->glinternalformat, glt->image->width, glt->image->height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, resizebuffer);
712 case GLTEXTURETYPE_3D:
713 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);
717 Host_Error("R_Upload: fragment texture of type other than 1D, 2D, or 3D\n");
720 GL_SetupTextureParameters(glt->image->flags, glt->image->texturetype);
723 if (prevbuffer == NULL)
725 R_MakeResizeBufferBigger(glt->image->width * glt->image->height * glt->image->depth * glt->image->bytesperpixel);
726 memset(resizebuffer, 0, glt->width * glt->height * glt->image->depth * glt->image->bytesperpixel);
727 prevbuffer = resizebuffer;
729 else if (glt->textype->textype == TEXTYPE_PALETTE)
731 // promote paletted to RGBA, so we only have to worry about RGB and
732 // RGBA in the rest of this code
733 R_MakeResizeBufferBigger(glt->image->width * glt->image->height * glt->image->depth * glt->image->sides * glt->image->bytesperpixel);
734 Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, glt->width * glt->height * glt->depth, glt->palette);
735 prevbuffer = colorconvertbuffer;
738 switch(glt->image->texturetype)
740 case GLTEXTURETYPE_1D:
741 qglTexSubImage1D(GL_TEXTURE_1D, 0, glt->x, glt->width, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
744 case GLTEXTURETYPE_2D:
745 qglTexSubImage2D(GL_TEXTURE_2D, 0, glt->x, glt->y, glt->width, glt->height, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
748 case GLTEXTURETYPE_3D:
749 qglTexSubImage3D(GL_TEXTURE_3D, 0, glt->x, glt->y, glt->z, glt->width, glt->height, glt->depth, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
753 Host_Error("R_Upload: fragment texture of type other than 1D, 2D, or 3D\n");
759 glt->image->flags &= ~GLTEXF_UPLOAD;
761 // these are rounded up versions of the size to do better resampling
762 for (width = 1;width < glt->width ;width <<= 1);
763 for (height = 1;height < glt->height;height <<= 1);
764 for (depth = 1;depth < glt->depth ;depth <<= 1);
766 R_MakeResizeBufferBigger(width * height * depth * glt->image->sides * glt->image->bytesperpixel);
768 if (prevbuffer == NULL)
770 width = glt->image->width;
771 height = glt->image->height;
772 depth = glt->image->depth;
773 memset(resizebuffer, 0, width * height * depth * glt->image->bytesperpixel);
774 prevbuffer = resizebuffer;
778 if (glt->textype->textype == TEXTYPE_PALETTE)
780 // promote paletted to RGBA, so we only have to worry about RGB and
781 // RGBA in the rest of this code
782 Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, glt->width * glt->height * glt->depth * glt->image->sides, glt->palette);
783 prevbuffer = colorconvertbuffer;
787 // cubemaps contain multiple images and thus get processed a bit differently
788 if (glt->image->texturetype != GLTEXTURETYPE_CUBEMAP)
790 if (glt->width != width || glt->height != height || glt->depth != depth)
792 Image_Resample(prevbuffer, glt->width, glt->height, glt->depth, resizebuffer, width, height, depth, glt->image->bytesperpixel, r_lerpimages.integer);
793 prevbuffer = resizebuffer;
796 while (width > glt->image->width || height > glt->image->height || depth > glt->image->depth)
798 Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, glt->image->width, glt->image->height, glt->image->depth, glt->image->bytesperpixel);
799 prevbuffer = resizebuffer;
803 switch(glt->image->texturetype)
805 case GLTEXTURETYPE_1D:
806 qglTexImage1D(GL_TEXTURE_1D, mip++, glt->image->glinternalformat, width, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
808 if (glt->flags & TEXF_MIPMAP)
810 while (width > 1 || height > 1 || depth > 1)
812 Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->image->bytesperpixel);
813 prevbuffer = resizebuffer;
814 qglTexImage1D(GL_TEXTURE_1D, mip++, glt->image->glinternalformat, width, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
819 case GLTEXTURETYPE_2D:
820 qglTexImage2D(GL_TEXTURE_2D, mip++, glt->image->glinternalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
822 if (glt->flags & TEXF_MIPMAP)
824 while (width > 1 || height > 1 || depth > 1)
826 Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->image->bytesperpixel);
827 prevbuffer = resizebuffer;
828 qglTexImage2D(GL_TEXTURE_2D, mip++, glt->image->glinternalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
833 case GLTEXTURETYPE_3D:
834 qglTexImage3D(GL_TEXTURE_3D, mip++, glt->image->glinternalformat, width, height, depth, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
836 if (glt->flags & TEXF_MIPMAP)
838 while (width > 1 || height > 1 || depth > 1)
840 Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->image->bytesperpixel);
841 prevbuffer = resizebuffer;
842 qglTexImage3D(GL_TEXTURE_3D, mip++, glt->image->glinternalformat, width, height, depth, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
847 case GLTEXTURETYPE_CUBEMAP:
848 // convert and upload each side in turn,
849 // from a continuous block of input texels
850 texturebuffer = prevbuffer;
851 for (i = 0;i < 6;i++)
853 prevbuffer = texturebuffer;
854 texturebuffer += glt->width * glt->height * glt->depth * glt->textype->inputbytesperpixel;
855 if (glt->width != width || glt->height != height || glt->depth != depth)
857 Image_Resample(prevbuffer, glt->width, glt->height, glt->depth, resizebuffer, width, height, depth, glt->image->bytesperpixel, r_lerpimages.integer);
858 prevbuffer = resizebuffer;
861 while (width > glt->image->width || height > glt->image->height || depth > glt->image->depth)
863 Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, glt->image->width, glt->image->height, glt->image->depth, glt->image->bytesperpixel);
864 prevbuffer = resizebuffer;
867 qglTexImage2D(cubemapside[i], mip++, glt->image->glinternalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
869 if (glt->flags & TEXF_MIPMAP)
871 while (width > 1 || height > 1 || depth > 1)
873 Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->image->bytesperpixel);
874 prevbuffer = resizebuffer;
875 qglTexImage2D(cubemapside[i], mip++, glt->image->glinternalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
882 GL_SetupTextureParameters(glt->image->flags, glt->image->texturetype);
884 qglBindTexture(gltexturetypeenums[glt->image->texturetype], oldbindtexnum);
887 static void R_FindImageForTexture(gltexture_t *glt)
889 int i, j, best, best2, x, y, z, w, h, d, picmip;
890 textypeinfo_t *texinfo;
891 gltexturepool_t *pool;
892 gltextureimage_t *image, **imagechainpointer;
893 texinfo = glt->textype;
896 // remains -1 until uploaded
905 if (glt->flags & TEXF_FRAGMENT)
907 for (imagechainpointer = &pool->imagechain;*imagechainpointer;imagechainpointer = &(*imagechainpointer)->imagechain)
909 image = *imagechainpointer;
910 if (image->type != GLIMAGETYPE_FRAGMENTS)
912 if (image->texturetype != glt->texturetype)
914 if ((image->flags ^ glt->flags) & (TEXF_MIPMAP | TEXF_ALPHA | TEXF_CLAMP))
916 if (image->glformat != texinfo->glformat || image->glinternalformat != texinfo->glinternalformat)
918 if (glt->width > image->width || glt->height > image->height || glt->depth > image->depth)
921 // got a fragments texture, find a place in it if we can
922 for (best = image->width, i = 0;i < image->width - w;i++)
924 for (best2 = 0, j = 0;j < w;j++)
926 if (image->blockallocation[i+j] >= best)
928 if (best2 < image->blockallocation[i+j])
929 best2 = image->blockallocation[i+j];
933 // this is a valid spot
939 if (best + h > image->height)
942 for (i = 0;i < w;i++)
943 image->blockallocation[x + i] = best + h;
949 image->texturecount++;
953 image = Mem_Alloc(texturemempool, sizeof(gltextureimage_t));
955 Sys_Error("R_FindImageForTexture: ran out of memory\n");
956 image->type = GLIMAGETYPE_FRAGMENTS;
957 // make sure the created image is big enough for the fragment
958 for (image->width = block_size;image->width < glt->width;image->width <<= 1);
960 if (gltexturetypedimensions[glt->texturetype] >= 2)
961 for (image->height = block_size;image->height < glt->height;image->height <<= 1);
963 if (gltexturetypedimensions[glt->texturetype] >= 3)
964 for (image->depth = block_size;image->depth < glt->depth;image->depth <<= 1);
965 image->blockallocation = Mem_Alloc(texturemempool, image->width * sizeof(short));
966 memset(image->blockallocation, 0, image->width * sizeof(short));
971 for (i = 0;i < w;i++)
972 image->blockallocation[x + i] = y + h;
976 for (imagechainpointer = &pool->imagechain;*imagechainpointer;imagechainpointer = &(*imagechainpointer)->imagechain);
978 image = Mem_Alloc(texturemempool, sizeof(gltextureimage_t));
980 Sys_Error("R_FindImageForTexture: ran out of memory\n");
981 image->type = GLIMAGETYPE_TILE;
982 image->blockallocation = NULL;
985 if (glt->flags & TEXF_PICMIP)
986 picmip = gl_picmip.integer;
987 // calculate final size
988 if (gl_max_size.integer > realmaxsize)
989 Cvar_SetValue("gl_max_size", realmaxsize);
990 for (image->width = 1;image->width < glt->width;image->width <<= 1);
991 for (image->height = 1;image->height < glt->height;image->height <<= 1);
992 for (image->depth = 1;image->depth < glt->depth;image->depth <<= 1);
993 for (image->width >>= picmip;image->width > gl_max_size.integer;image->width >>= 1);
994 for (image->height >>= picmip;image->height > gl_max_size.integer;image->height >>= 1);
995 for (image->depth >>= picmip;image->depth > gl_max_size.integer;image->depth >>= 1);
996 if (image->width < 1) image->width = 1;
997 if (image->height < 1) image->height = 1;
998 if (image->depth < 1) image->depth = 1;
1000 image->texturetype = glt->texturetype;
1001 image->glinternalformat = texinfo->glinternalformat;
1002 image->glformat = texinfo->glformat;
1003 image->flags = (glt->flags & (TEXF_MIPMAP | TEXF_ALPHA | TEXF_CLAMP | TEXF_PICMIP)) | GLTEXF_UPLOAD;
1004 image->bytesperpixel = texinfo->internalbytesperpixel;
1005 image->sides = image->texturetype == GLTEXTURETYPE_CUBEMAP ? 6 : 1;
1006 // get a texture number to use
1007 qglGenTextures(1, &image->texnum);
1008 *imagechainpointer = image;
1009 image->texturecount++;
1017 // note: R_FindImageForTexture must be called before this
1018 static void R_UploadTexture (gltexture_t *glt)
1020 if (!(glt->flags & GLTEXF_UPLOAD))
1023 R_Upload(glt, glt->inputtexels);
1024 if (glt->inputtexels)
1026 Mem_Free(glt->inputtexels);
1027 glt->inputtexels = NULL;
1028 glt->flags |= GLTEXF_DESTROYED;
1030 else if (glt->flags & GLTEXF_DESTROYED)
1031 Con_Printf("R_UploadTexture: Texture %s already uploaded and destroyed. Can not upload original image again. Uploaded blank texture.\n", glt->identifier);
1034 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)
1038 gltexturepool_t *pool = (gltexturepool_t *)rtexturepool;
1039 textypeinfo_t *texinfo;
1041 if (cls.state == ca_dedicated)
1044 if (flags & TEXF_FRAGMENT && texturetype != GLTEXTURETYPE_2D)
1045 Sys_Error("R_LoadTexture: only 2D fragment textures implemented\n");
1046 if (texturetype == GLTEXTURETYPE_CUBEMAP && !gl_texturecubemap)
1047 Sys_Error("R_LoadTexture: cubemap texture not supported by driver\n");
1048 if (texturetype == GLTEXTURETYPE_3D && !gl_texture3d)
1049 Sys_Error("R_LoadTexture: 3d texture not supported by driver\n");
1052 glt = R_FindTexture (pool, identifier);
1055 Con_Printf("R_LoadTexture: replacing existing texture %s\n", identifier);
1056 R_FreeTexture((rtexture_t *)glt);
1060 texinfo = R_GetTexTypeInfo(textype, flags);
1061 size = width * height * depth * sides * texinfo->inputbytesperpixel;
1063 Sys_Error("R_LoadTexture: bogus texture size (%dx%dx%dx%dbppx%dsides = %d bytes)\n", width, height, depth, texinfo->inputbytesperpixel * 8, sides);
1065 // clear the alpha flag if the texture has no transparent pixels
1068 case TEXTYPE_PALETTE:
1069 if (flags & TEXF_ALPHA)
1071 flags &= ~TEXF_ALPHA;
1074 for (i = 0;i < size;i++)
1076 if (((qbyte *)&palette[data[i]])[3] < 255)
1078 flags |= TEXF_ALPHA;
1086 if (flags & TEXF_ALPHA)
1087 Host_Error("R_LoadTexture: RGB has no alpha, don't specify TEXF_ALPHA\n");
1090 if (flags & TEXF_ALPHA)
1092 flags &= ~TEXF_ALPHA;
1095 for (i = 3;i < size;i += 4)
1099 flags |= TEXF_ALPHA;
1109 Host_Error("R_LoadTexture: unknown texture type\n");
1112 glt = Mem_Alloc(texturemempool, sizeof(gltexture_t));
1115 glt->identifier = Mem_Alloc(texturemempool, strlen(identifier)+1);
1116 strcpy (glt->identifier, identifier);
1119 glt->identifier = NULL;
1121 glt->chain = pool->gltchain;
1122 pool->gltchain = glt;
1124 glt->height = height;
1126 glt->flags = flags | GLTEXF_UPLOAD;
1127 glt->textype = texinfo;
1128 glt->texturetype = texturetype;
1129 glt->inputdatasize = size;
1130 glt->palette = palette;
1134 glt->inputtexels = Mem_Alloc(texturedatamempool, size);
1135 if (glt->inputtexels == NULL)
1136 Sys_Error("R_LoadTexture: out of memory\n");
1137 memcpy(glt->inputtexels, data, size);
1140 glt->inputtexels = NULL;
1142 R_FindImageForTexture(glt);
1143 R_PrecacheTexture(glt);
1145 return (rtexture_t *)glt;
1148 rtexture_t *R_LoadTexture1D(rtexturepool_t *rtexturepool, const char *identifier, int width, const qbyte *data, int textype, int flags, const unsigned int *palette)
1150 return R_SetupTexture(rtexturepool, identifier, width, 1, 1, 1, flags, textype, GLTEXTURETYPE_1D, data, palette);
1153 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)
1155 return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, flags, textype, GLTEXTURETYPE_2D, data, palette);
1158 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)
1160 return R_SetupTexture(rtexturepool, identifier, width, height, depth, 1, flags, textype, GLTEXTURETYPE_3D, data, palette);
1163 rtexture_t *R_LoadTextureCubeMap(rtexturepool_t *rtexturepool, const char *identifier, int width, const qbyte *data, int textype, int flags, const unsigned int *palette)
1165 return R_SetupTexture(rtexturepool, identifier, width, width, 1, 6, flags, textype, GLTEXTURETYPE_CUBEMAP, data, palette);
1168 int R_TextureHasAlpha(rtexture_t *rt)
1170 return rt ? (((gltexture_t *)rt)->flags & TEXF_ALPHA) != 0 : false;
1173 int R_TextureWidth(rtexture_t *rt)
1175 return rt ? ((gltexture_t *)rt)->width : 0;
1178 int R_TextureHeight(rtexture_t *rt)
1180 return rt ? ((gltexture_t *)rt)->height : 0;
1183 void R_FragmentLocation3D(rtexture_t *rt, int *x, int *y, int *z, float *fx1, float *fy1, float *fz1, float *fx2, float *fy2, float *fz2)
1186 float iwidth, iheight, idepth;
1187 if (cls.state == ca_dedicated)
1195 if (fx1 || fy1 || fx2 || fy2)
1213 Host_Error("R_FragmentLocation: no texture supplied\n");
1214 glt = (gltexture_t *)rt;
1215 if (glt->flags & TEXF_FRAGMENT)
1221 if (fx1 || fy1 || fx2 || fy2)
1223 iwidth = 1.0f / glt->image->width;
1224 iheight = 1.0f / glt->image->height;
1225 idepth = 1.0f / glt->image->depth;
1227 *fx1 = glt->x * iwidth;
1229 *fy1 = glt->y * iheight;
1231 *fz1 = glt->z * idepth;
1233 *fx2 = (glt->x + glt->width) * iwidth;
1235 *fy2 = (glt->y + glt->height) * iheight;
1237 *fz2 = (glt->z + glt->depth) * idepth;
1248 if (fx1 || fy1 || fx2 || fy2)
1266 void R_FragmentLocation(rtexture_t *rt, int *x, int *y, float *fx1, float *fy1, float *fx2, float *fy2)
1268 R_FragmentLocation3D(rt, x, y, NULL, fx1, fy1, NULL, fx2, fy2, NULL);
1271 int R_CompatibleFragmentWidth(int width, int textype, int flags)
1276 void R_UpdateTexture(rtexture_t *rt, qbyte *data)
1280 Host_Error("R_UpdateTexture: no texture supplied\n");
1282 Host_Error("R_UpdateTexture: no data supplied\n");
1283 glt = (gltexture_t *)rt;
1285 // if it has not been uploaded yet, update the data that will be used when it is
1286 if (glt->inputtexels)
1287 memcpy(glt->inputtexels, data, glt->inputdatasize);
1289 R_Upload(glt, data);