]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - gl_textures.c
detect bogus texture upload attempts and print the info to console
[xonotic/darkplaces.git] / gl_textures.c
index f62a0cb0f729319ddc995e8dddcd0626af60cae2..710d2164010a733a7e9d56cdc0d9eed96b0e9c0e 100644 (file)
@@ -1,35 +1,32 @@
+
 #include "quakedef.h"
+#include "image.h"
+#include "jpeg.h"
 
-cvar_t r_max_size = {0, "r_max_size", "2048"};
-cvar_t r_picmip = {0, "r_picmip", "0"};
+cvar_t r_max_size = {CVAR_SAVE, "r_max_size", "2048"};
+cvar_t r_max_scrapsize = {CVAR_SAVE, "r_max_scrapsize", "256"};
+cvar_t r_picmip = {CVAR_SAVE, "r_picmip", "0"};
 cvar_t r_lerpimages = {CVAR_SAVE, "r_lerpimages", "1"};
 cvar_t r_precachetextures = {CVAR_SAVE, "r_precachetextures", "1"};
 
-int            gl_filter_min = GL_LINEAR_MIPMAP_LINEAR; //NEAREST;
+int            gl_filter_min = GL_LINEAR_MIPMAP_LINEAR;
 int            gl_filter_mag = GL_LINEAR;
 
 
 static mempool_t *texturemempool;
+static mempool_t *texturedatamempool;
+static mempool_t *textureprocessingmempool;
 
 // note: this must not conflict with TEXF_ flags in r_textures.h
 // cleared when a texture is uploaded
 #define GLTEXF_UPLOAD 0x00010000
-// texture generated by code, also causes permanent GLTEXF_UPLOAD effect
-#define GLTEXF_PROCEDURAL 0x00020000
 // bitmask for mismatch checking
-#define GLTEXF_IMPORTANTBITS (GLTEXF_PROCEDURAL)
+#define GLTEXF_IMPORTANTBITS (0)
 // set when image is uploaded and freed
 #define GLTEXF_DESTROYED 0x00040000
 
 // size of images which hold fragment textures, ignores picmip and max_size
-#define BLOCK_SIZE 256
-
-// really this number only governs gltexnuminuse
-#define MAX_GLTEXTURES 65536
-
-// since there is only one set of GL texture numbers, we have to track them
-// globally, everything else is per texture pool
-static byte *gltexnuminuse;
+static int block_size;
 
 typedef struct
 {
@@ -38,39 +35,61 @@ typedef struct
        int internalbytesperpixel;
        int glformat;
        int glinternalformat;
-       int align;
 }
 textypeinfo_t;
 
-static textypeinfo_t textype_qpalette       = {TEXTYPE_QPALETTE, 1, 4, GL_RGBA, 3, 1};
-static textypeinfo_t textype_rgb            = {TEXTYPE_RGB     , 3, 3, GL_RGB , 3, 3};
-static textypeinfo_t textype_rgba           = {TEXTYPE_RGBA    , 4, 4, GL_RGBA, 3, 1};
-static textypeinfo_t textype_qpalette_alpha = {TEXTYPE_QPALETTE, 1, 4, GL_RGBA, 4, 1};
-static textypeinfo_t textype_rgba_alpha     = {TEXTYPE_RGBA    , 4, 4, GL_RGBA, 4, 1};
+static textypeinfo_t textype_palette       = {TEXTYPE_PALETTE, 1, 4, GL_RGBA, 3};
+static textypeinfo_t textype_rgb           = {TEXTYPE_RGB    , 3, 3, GL_RGB , 3};
+static textypeinfo_t textype_rgba          = {TEXTYPE_RGBA   , 4, 4, GL_RGBA, 3};
+static textypeinfo_t textype_palette_alpha = {TEXTYPE_PALETTE, 1, 4, GL_RGBA, 4};
+static textypeinfo_t textype_rgba_alpha    = {TEXTYPE_RGBA   , 4, 4, GL_RGBA, 4};
 
 // a tiling texture (most common type)
 #define GLIMAGETYPE_TILE 0
 // a fragments texture (contains one or more fragment textures)
 #define GLIMAGETYPE_FRAGMENTS 1
 
+#define GLTEXTURETYPE_1D 0
+#define GLTEXTURETYPE_2D 1
+#define GLTEXTURETYPE_3D 2
+#define GLTEXTURETYPE_CUBEMAP 3
+
+static int gltexturetypeenums[4] = {GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP_ARB};
+static int gltexturetypedimensions[4] = {1, 2, 3, 2};
+static int cubemapside[6] =
+{
+       GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB,
+       GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB,
+       GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB,
+       GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB,
+       GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB,
+       GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
+};
+
 // a gltextureimage can have one (or more if fragments) gltextures inside
 typedef struct gltextureimage_s
 {
        struct gltextureimage_s *imagechain;
        int texturecount;
        int type; // one of the GLIMAGETYPE_ values
+       int texturetype; // one of the GLTEXTURETYPE_ values
+       int sides; // 1 or 6 depending on texturetype
        int texnum; // GL texture slot number
-       int width, height;
+       int width, height, depth; // 3D texture support
        int bytesperpixel; // bytes per pixel
        int glformat; // GL_RGB or GL_RGBA
        int glinternalformat; // 3 or 4
        int flags;
-       short *blockallocation; // fragment allocation
+       short *blockallocation; // fragment allocation (2D only)
 }
 gltextureimage_t;
 
 typedef struct gltexture_s
 {
+       // this field is exposed to the R_GetTexture macro, for speed reasons
+       // (must be identical in rtexture_t)
+       int texnum; // GL texture slot number
+
        // pointer to texturepool (check this to see if the texture is allocated)
        struct gltexturepool_s *pool;
        // pointer to next texture in texturepool chain
@@ -80,24 +99,21 @@ typedef struct gltexture_s
        // name of the texture (this might be removed someday), no duplicates
        char *identifier;
        // location in the image, and size
-       int x, y, width, height;
-       // copy of the original texture supplied to the upload function, for re-uploading or deferred uploads (non-precached)
-       byte *inputtexels;
-       // to identify cache mismatchs (this might be removed someday)
-       int crc;
-       // flags supplied to the LoadTexture/ProceduralTexture functions
+       int x, y, z, width, height, depth;
+       // copy of the original texture(s) supplied to the upload function, for
+       // delayed uploads (non-precached)
+       qbyte *inputtexels;
+       // original data size in *inputtexels
+       int inputdatasize;
+       // flags supplied to the LoadTexture function
        // (might be altered to remove TEXF_ALPHA), and GLTEXF_ private flags
        int flags;
-       // procedural texture generation function, called once per frame if the texture is used
-       int (*generate)(byte *buffer, int width, int height, void *parameterdata, int parameterdatasize);
-       // data provided to generate, persistent from call to call
-       byte *proceduraldata;
-       // size of data
-       int proceduraldatasize;
-       // used only to avoid updating the texture more than once per frame
-       int proceduralframecount;
        // pointer to one of the textype_ structs
        textypeinfo_t *textype;
+       // one of the GLTEXTURETYPE_ values
+       int texturetype;
+       // palette if the texture is TEXTYPE_PALETTE
+       const unsigned int *palette;
 }
 gltexture_t;
 
@@ -105,7 +121,7 @@ gltexture_t;
 
 typedef struct gltexturepool_s
 {
-       int sentinel;
+       unsigned int sentinel;
        struct gltextureimage_s *imagechain;
        struct gltexture_s *gltchain;
        struct gltexturepool_s *next;
@@ -114,11 +130,9 @@ gltexturepool_t;
 
 static gltexturepool_t *gltexturepoolchain = NULL;
 
-static byte *resamplerow1 = NULL, *resamplerow2 = NULL;
-static int resamplerowsize = 0;
-static byte *resizebuffer = NULL, *colorconvertbuffer;
+static qbyte *resizebuffer = NULL, *colorconvertbuffer;
 static int resizebuffersize = 0;
-static byte *texturebuffer;
+static qbyte *texturebuffer;
 static int texturebuffersize = 0;
 
 static int realmaxsize = 0;
@@ -129,8 +143,8 @@ static textypeinfo_t *R_GetTexTypeInfo(int textype, int flags)
        {
                switch(textype)
                {
-               case TEXTYPE_QPALETTE:
-                       return &textype_qpalette_alpha;
+               case TEXTYPE_PALETTE:
+                       return &textype_palette_alpha;
                case TEXTYPE_RGB:
                        Host_Error("R_GetTexTypeInfo: RGB format has no alpha, TEXF_ALPHA not allowed\n");
                        return NULL;
@@ -145,8 +159,8 @@ static textypeinfo_t *R_GetTexTypeInfo(int textype, int flags)
        {
                switch(textype)
                {
-               case TEXTYPE_QPALETTE:
-                       return &textype_qpalette;
+               case TEXTYPE_PALETTE:
+                       return &textype_palette;
                case TEXTYPE_RGB:
                        return &textype_rgb;
                case TEXTYPE_RGBA:
@@ -176,72 +190,66 @@ static void R_PrecacheTexture(gltexture_t *glt)
                R_UploadTexture(glt);
 }
 
-int R_GetTexture(rtexture_t *rt)
+int R_RealGetTexture(rtexture_t *rt)
 {
-       gltexture_t *glt;
-       if (!rt)
-               return 0;
-       glt = (gltexture_t *)rt;
-       if (glt->flags & (GLTEXF_UPLOAD | GLTEXF_PROCEDURAL))
+       if (rt)
        {
-               if (glt->flags & GLTEXF_PROCEDURAL)
-               {
-                       if (glt->proceduralframecount != r_framecount)
-                       {
-                               glt->proceduralframecount = r_framecount;
-                               R_UploadTexture(glt);
-                       }
-               }
-               else
+               gltexture_t *glt;
+               glt = (gltexture_t *)rt;
+               if (glt->flags & GLTEXF_UPLOAD)
                        R_UploadTexture(glt);
+               glt->texnum = glt->image->texnum;
+               return glt->image->texnum;
        }
-       return glt->image->texnum;
+       else
+               return 0;
 }
 
-static void R_FreeTexture(gltexture_t *glt)
+void R_FreeTexture(rtexture_t *rt)
 {
-       gltexture_t **gltpointer;
+       gltexture_t *glt, **gltpointer;
        gltextureimage_t *image, **gltimagepointer;
-       GLuint texnum;
+
+       glt = (gltexture_t *)rt;
+       if (glt == NULL)
+               Host_Error("R_FreeTexture: texture == NULL\n");
 
        for (gltpointer = &glt->pool->gltchain;*gltpointer && *gltpointer != glt;gltpointer = &(*gltpointer)->chain);
        if (*gltpointer == glt)
                *gltpointer = glt->chain;
        else
-               Host_Error("R_FreeTexture: texture not linked in pool\n");
+               Host_Error("R_FreeTexture: texture \"%s\" not linked in pool\n", glt->identifier);
 
        // note: if freeing a fragment texture, this will not make the claimed
        // space available for new textures unless all other fragments in the
        // image are also freed
-       image = glt->image;
-       image->texturecount--;
-       if (image->texturecount < 1)
+       if (glt->image)
        {
-               for (gltimagepointer = &glt->pool->imagechain;*gltimagepointer && *gltimagepointer != image;gltimagepointer = &(*gltimagepointer)->imagechain);
-               if (*gltimagepointer == image)
-                       *gltimagepointer = image->imagechain;
-               else
-                       Host_Error("R_FreeTexture: image not linked in pool\n");
-               if (image->texnum)
+               image = glt->image;
+               image->texturecount--;
+               if (image->texturecount < 1)
                {
-                       texnum = image->texnum;
-                       gltexnuminuse[image->texnum] = 0;
-                       glDeleteTextures(1, &texnum);
+                       for (gltimagepointer = &glt->pool->imagechain;*gltimagepointer && *gltimagepointer != image;gltimagepointer = &(*gltimagepointer)->imagechain);
+                       if (*gltimagepointer == image)
+                               *gltimagepointer = image->imagechain;
+                       else
+                               Host_Error("R_FreeTexture: image not linked in pool\n");
+                       if (image->texnum)
+                               qglDeleteTextures(1, &image->texnum);
+                       if (image->blockallocation)
+                               Mem_Free(image->blockallocation);
+                       Mem_Free(image);
                }
-               if (image->blockallocation)
-                       Mem_Free(image->blockallocation);
-               Mem_Free(image);
        }
 
        if (glt->identifier)
                Mem_Free(glt->identifier);
        if (glt->inputtexels)
                Mem_Free(glt->inputtexels);
-       if (glt->proceduraldata)
-               Mem_Free(glt->proceduraldata);
        Mem_Free(glt);
 }
 
+/*
 static gltexture_t *R_FindTexture (gltexturepool_t *pool, char *identifier)
 {
        gltexture_t     *glt;
@@ -255,14 +263,16 @@ static gltexture_t *R_FindTexture (gltexturepool_t *pool, char *identifier)
 
        return NULL;
 }
+*/
 
 rtexturepool_t *R_AllocTexturePool(void)
 {
        gltexturepool_t *pool;
+       if (texturemempool == NULL)
+               return NULL;
        pool = Mem_Alloc(texturemempool, sizeof(gltexturepool_t));
        if (pool == NULL)
                return NULL;
-       //memset(pool, 0, sizeof(gltexturepool_t));
        pool->next = gltexturepoolchain;
        gltexturepoolchain = pool;
        pool->sentinel = TEXTUREPOOL_SENTINEL;
@@ -286,7 +296,9 @@ void R_FreeTexturePool(rtexturepool_t **rtexturepool)
        else
                Host_Error("R_FreeTexturePool: pool not linked\n");
        while (pool->gltchain)
-               R_FreeTexture(pool->gltchain);
+               R_FreeTexture((rtexture_t *)pool->gltchain);
+       if (pool->imagechain)
+               Sys_Error("R_FreeTexturePool: not all images freed\n");
        Mem_Free(pool);
 }
 
@@ -308,6 +320,8 @@ static glmode_t modes[] =
        {"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
 };
 
+extern int gl_backend_rebindtextures;
+
 static void GL_TextureMode_f (void)
 {
        int i;
@@ -349,60 +363,64 @@ static void GL_TextureMode_f (void)
                        // only update already uploaded images
                        if (!(image->flags & GLTEXF_UPLOAD))
                        {
-                               glBindTexture(GL_TEXTURE_2D, image->texnum);
+                               qglBindTexture(GL_TEXTURE_2D, image->texnum);
                                if (image->flags & TEXF_MIPMAP)
-                                       glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
+                                       qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
                                else
-                                       glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
-                               glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
+                                       qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
+                               qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
                        }
                }
        }
+       gl_backend_rebindtextures = true;
 }
 
 static int R_CalcTexelDataSize (gltexture_t *glt)
 {
-       int width2, height2, size;
+       int width2, height2, depth2, size;
        if (glt->flags & TEXF_FRAGMENT)
-               size = glt->width * glt->height;
+               size = glt->width * glt->height * glt->depth;
        else
        {
                if (r_max_size.integer > realmaxsize)
                        Cvar_SetValue("r_max_size", realmaxsize);
                // calculate final size
-               width2 = 1;while (width2 < glt->width) width2 <<= 1;
-               height2 = 1;while (height2 < glt->height) height2 <<= 1;
-               width2 >>= (int) r_picmip.integer;
-               height2 >>= (int) r_picmip.integer;
-               while (width2 > (int) r_max_size.integer) width2 >>= 1;
-               while (height2 > (int) r_max_size.integer) height2 >>= 1;
+               for (width2 = 1;width2 < glt->width;width2 <<= 1);
+               for (height2 = 1;height2 < glt->height;height2 <<= 1);
+               for (depth2 = 1;depth2 < glt->depth;depth2 <<= 1);
+               for (width2 >>= r_picmip.integer;width2 > r_max_size.integer;width2 >>= 1);
+               for (height2 >>= r_picmip.integer;height2 > r_max_size.integer;height2 >>= 1);
+               for (depth2 >>= r_picmip.integer;depth2 > r_max_size.integer;depth2 >>= 1);
                if (width2 < 1) width2 = 1;
                if (height2 < 1) height2 = 1;
+               if (depth2 < 1) depth2 = 1;
 
                size = 0;
                if (glt->flags & TEXF_MIPMAP)
                {
-                       while (width2 > 1 || height2 > 1)
+                       while (width2 > 1 || height2 > 1 || depth2 > 1)
                        {
-                               size += width2 * height2;
+                               size += width2 * height2 * depth2;
                                if (width2 > 1)
                                        width2 >>= 1;
                                if (height2 > 1)
                                        height2 >>= 1;
+                               if (depth2 > 1)
+                                       depth2 >>= 1;
                        }
                        size++; // count the last 1x1 mipmap
                }
                else
-                       size = width2*height2;
+                       size = width2 * height2 * depth2;
        }
-       size *= glt->textype->internalbytesperpixel;
+       size *= glt->textype->internalbytesperpixel * glt->image->sides;
 
        return size;
 }
 
 void R_TextureStats_PrintTotal(void)
 {
-       int glsize, inputsize, total = 0, totalt = 0, totalp = 0, loaded = 0, loadedt = 0, loadedp = 0;
+       int glsize, total = 0, totalt = 0, totalp = 0, loaded = 0, loadedt = 0, loadedp = 0;
        gltexture_t *glt;
        gltexturepool_t *pool;
        for (pool = gltexturepoolchain;pool;pool = pool->next)
@@ -410,16 +428,14 @@ void R_TextureStats_PrintTotal(void)
                for (glt = pool->gltchain;glt;glt = glt->chain)
                {
                        glsize = R_CalcTexelDataSize(glt);
-                       inputsize = glt->width * glt->height * glt->textype->inputbytesperpixel;
-
                        total++;
                        totalt += glsize;
-                       totalp += inputsize;
+                       totalp += glt->inputdatasize;
                        if (!(glt->flags & GLTEXF_UPLOAD))
                        {
                                loaded++;
                                loadedt += glsize;
-                               loadedp += inputsize;
+                               loadedp += glt->inputdatasize;
                        }
                }
        }
@@ -431,16 +447,13 @@ static void R_TextureStats_f(void)
        int loaded;
        gltexture_t *glt;
        gltexturepool_t *pool;
-       Con_Printf("glsize input crc  loaded mip alpha name\n");
+       Con_Printf("glsize input loaded mip alpha name\n");
        for (pool = gltexturepoolchain;pool;pool = pool->next)
        {
                for (glt = pool->gltchain;glt;glt = glt->chain)
                {
                        loaded = !(glt->flags & GLTEXF_UPLOAD);
-                       if (glt->flags & GLTEXF_PROCEDURAL)
-                               Con_Printf("%c%4i%c %4i  PROC %s %s %s %s\n"  , loaded ? '[' : ' ', (R_CalcTexelDataSize(glt) + 1023) / 1024, loaded ? ']' : ' ',                               (glt->width * glt->height * glt->textype->inputbytesperpixel + 1023) / 1024,                                         loaded ? "loaded" : "      ", (glt->flags & TEXF_MIPMAP) ? "mip" : "   ", (glt->flags & TEXF_ALPHA) ? "alpha" : "     ", glt->identifier ? glt->identifier : "<unnamed>");
-                       else
-                               Con_Printf("%c%4i%c%c%4i%c %04X %s %s %s %s\n", loaded ? '[' : ' ', (R_CalcTexelDataSize(glt) + 1023) / 1024, loaded ? ']' : ' ', glt->inputtexels ? '[' : ' ', (glt->width * glt->height * glt->textype->inputbytesperpixel + 1023) / 1024, glt->inputtexels ? ']' : ' ', glt->crc, loaded ? "loaded" : "      ", (glt->flags & TEXF_MIPMAP) ? "mip" : "   ", (glt->flags & TEXF_ALPHA) ? "alpha" : "     ", glt->identifier ? glt->identifier : "<unnamed>");
+                       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>");
                }
                Con_Printf("pool %10p\n", pool);
        }
@@ -452,41 +465,42 @@ char engineversion[40];
 static void r_textures_start(void)
 {
        // deal with size limits of various drivers (3dfx in particular)
-       glGetIntegerv(GL_MAX_TEXTURE_SIZE, &realmaxsize);
+       qglGetIntegerv(GL_MAX_TEXTURE_SIZE, &realmaxsize);
        CHECKGLERROR
+       // LordHavoc: allow any alignment
+       qglPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+       CHECKGLERROR
+
+       // use the largest scrap texture size we can (not sure if this is really a good idea)
+       for (block_size = 1;block_size < realmaxsize && block_size < r_max_scrapsize.integer;block_size <<= 1);
+
+       texturemempool = Mem_AllocPool("Texture Info");
+       texturedatamempool = Mem_AllocPool("Texture Storage (not yet uploaded)");
+       textureprocessingmempool = Mem_AllocPool("Texture Processing Buffers");
 
-       texturemempool = Mem_AllocPool("Textures");
-       gltexnuminuse = Mem_Alloc(texturemempool, MAX_GLTEXTURES);
-       //memset(gltexnuminuse, 0, MAX_GLTEXTURES);
+       JPEG_OpenLibrary ();
 }
 
 static void r_textures_shutdown(void)
 {
        rtexturepool_t *temp;
+
+       JPEG_CloseLibrary ();
+
        while(gltexturepoolchain)
        {
                temp = (rtexturepool_t *) gltexturepoolchain;
                R_FreeTexturePool(&temp);
        }
 
-       /*
-       if (resizebuffer) Mem_Free(resizebuffer);resizebuffer = NULL;
-       if (colorconvertbuffer) Mem_Free(colorconvertbuffer);colorconvertbuffer = NULL;
-       if (resamplerow1) Mem_Free(resamplerow1);resamplerow1 = NULL;
-       if (resamplerow2) Mem_Free(resamplerow2);resamplerow2 = NULL;
-       if (texturebuffer) Mem_Free(texturebuffer);texturebuffer = NULL;
-       if (gltexnuminuse) Mem_Free(gltexnuminuse);gltexnuminuse = NULL;
-       */
        resizebuffersize = 0;
-       resamplerowsize = 0;
        texturebuffersize = 0;
        resizebuffer = NULL;
        colorconvertbuffer = NULL;
-       resamplerow1 = NULL;
-       resamplerow2 = NULL;
        texturebuffer = NULL;
-       gltexnuminuse = NULL;
        Mem_FreePool(&texturemempool);
+       Mem_FreePool(&texturedatamempool);
+       Mem_FreePool(&textureprocessingmempool);
 }
 
 static void r_textures_newmap(void)
@@ -495,591 +509,179 @@ static void r_textures_newmap(void)
 
 void R_Textures_Init (void)
 {
-       Cmd_AddCommand ("gl_texturemode", &GL_TextureMode_f);
+       Cmd_AddCommand("gl_texturemode", &GL_TextureMode_f);
        Cmd_AddCommand("r_texturestats", R_TextureStats_f);
+       Cvar_RegisterVariable (&r_max_scrapsize);
        Cvar_RegisterVariable (&r_max_size);
        Cvar_RegisterVariable (&r_picmip);
        Cvar_RegisterVariable (&r_lerpimages);
        Cvar_RegisterVariable (&r_precachetextures);
-       gltexnuminuse = NULL;
 
        R_RegisterModule("R_Textures", r_textures_start, r_textures_shutdown, r_textures_newmap);
 }
 
-static void R_ResampleTextureLerpLine (byte *in, byte *out, int inwidth, int outwidth, int bytesperpixel)
+void R_Textures_Frame (void)
 {
-       int             j, xi, oldx = 0, f, fstep, endx, lerp;
-       fstep = (int) (inwidth*65536.0f/outwidth);
-       endx = (inwidth-1);
-       if (bytesperpixel == 4)
+       // could do procedural texture animation here, if we keep track of which
+       // textures were accessed this frame...
+
+       // free the resize buffers
+       resizebuffersize = 0;
+       if (resizebuffer)
        {
-               for (j = 0,f = 0;j < outwidth;j++, f += fstep)
-               {
-                       xi = f >> 16;
-                       if (xi != oldx)
-                       {
-                               in += (xi - oldx) * 4;
-                               oldx = xi;
-                       }
-                       if (xi < endx)
-                       {
-                               lerp = f & 0xFFFF;
-                               *out++ = (byte) ((((in[4] - in[0]) * lerp) >> 16) + in[0]);
-                               *out++ = (byte) ((((in[5] - in[1]) * lerp) >> 16) + in[1]);
-                               *out++ = (byte) ((((in[6] - in[2]) * lerp) >> 16) + in[2]);
-                               *out++ = (byte) ((((in[7] - in[3]) * lerp) >> 16) + in[3]);
-                       }
-                       else // last pixel of the line has no pixel to lerp to
-                       {
-                               *out++ = in[0];
-                               *out++ = in[1];
-                               *out++ = in[2];
-                               *out++ = in[3];
-                       }
-               }
+               Mem_Free(resizebuffer);
+               resizebuffer = NULL;
        }
-       else if (bytesperpixel == 3)
+       if (colorconvertbuffer)
        {
-               for (j = 0,f = 0;j < outwidth;j++, f += fstep)
-               {
-                       xi = f >> 16;
-                       if (xi != oldx)
-                       {
-                               in += (xi - oldx) * 3;
-                               oldx = xi;
-                       }
-                       if (xi < endx)
-                       {
-                               lerp = f & 0xFFFF;
-                               *out++ = (byte) ((((in[3] - in[0]) * lerp) >> 16) + in[0]);
-                               *out++ = (byte) ((((in[4] - in[1]) * lerp) >> 16) + in[1]);
-                               *out++ = (byte) ((((in[5] - in[2]) * lerp) >> 16) + in[2]);
-                       }
-                       else // last pixel of the line has no pixel to lerp to
-                       {
-                               *out++ = in[0];
-                               *out++ = in[1];
-                               *out++ = in[2];
-                       }
-               }
+               Mem_Free(colorconvertbuffer);
+               colorconvertbuffer = NULL;
        }
-       else
-               Sys_Error("R_ResampleTextureLerpLine: unsupported bytesperpixel %i\n", bytesperpixel);
 }
 
-/*
-================
-R_ResampleTexture
-================
-*/
-static void R_ResampleTexture (void *indata, int inwidth, int inheight, void *outdata,  int outwidth, int outheight, int bytesperpixel)
+void R_MakeResizeBufferBigger(int size)
 {
-       if (resamplerowsize < outwidth*4)
-       {
-               if (resamplerow1)
-                       Mem_Free(resamplerow1);
-               if (resamplerow2)
-                       Mem_Free(resamplerow2);
-               resamplerowsize = outwidth*4;
-               resamplerow1 = Mem_Alloc(texturemempool, resamplerowsize);
-               resamplerow2 = Mem_Alloc(texturemempool, resamplerowsize);
-       }
-#define row1 resamplerow1
-#define row2 resamplerow2
-       if (bytesperpixel == 4)
-       {
-               if (r_lerpimages.integer)
-               {
-                       int             i, j, yi, oldy, f, fstep, lerp, endy = (inheight-1), inwidth4 = inwidth*4, outwidth4 = outwidth*4;
-                       byte    *inrow, *out;
-                       out = outdata;
-                       fstep = (int) (inheight*65536.0f/outheight);
-
-                       inrow = indata;
-                       oldy = 0;
-                       R_ResampleTextureLerpLine (inrow, row1, inwidth, outwidth, bytesperpixel);
-                       R_ResampleTextureLerpLine (inrow + inwidth4, row2, inwidth, outwidth, bytesperpixel);
-                       for (i = 0, f = 0;i < outheight;i++,f += fstep)
-                       {
-                               yi = f >> 16;
-                               if (yi < endy)
-                               {
-                                       lerp = f & 0xFFFF;
-                                       if (yi != oldy)
-                                       {
-                                               inrow = (byte *)indata + inwidth4*yi;
-                                               if (yi == oldy+1)
-                                                       memcpy(row1, row2, outwidth4);
-                                               else
-                                                       R_ResampleTextureLerpLine (inrow, row1, inwidth, outwidth, bytesperpixel);
-                                               R_ResampleTextureLerpLine (inrow + inwidth4, row2, inwidth, outwidth, bytesperpixel);
-                                               oldy = yi;
-                                       }
-                                       j = outwidth - 4;
-                                       while(j >= 0)
-                                       {
-#define LERPBYTE(i) out[i] = (byte) ((((row2[i] - row1[i]) * lerp) >> 16) + row1[i])
-                                               LERPBYTE( 0);
-                                               LERPBYTE( 1);
-                                               LERPBYTE( 2);
-                                               LERPBYTE( 3);
-                                               LERPBYTE( 4);
-                                               LERPBYTE( 5);
-                                               LERPBYTE( 6);
-                                               LERPBYTE( 7);
-                                               LERPBYTE( 8);
-                                               LERPBYTE( 9);
-                                               LERPBYTE(10);
-                                               LERPBYTE(11);
-                                               LERPBYTE(12);
-                                               LERPBYTE(13);
-                                               LERPBYTE(14);
-                                               LERPBYTE(15);
-                                               out += 16;
-                                               row1 += 16;
-                                               row2 += 16;
-                                               j -= 4;
-                                       }
-                                       if (j & 2)
-                                       {
-                                               LERPBYTE( 0);
-                                               LERPBYTE( 1);
-                                               LERPBYTE( 2);
-                                               LERPBYTE( 3);
-                                               LERPBYTE( 4);
-                                               LERPBYTE( 5);
-                                               LERPBYTE( 6);
-                                               LERPBYTE( 7);
-                                               out += 8;
-                                               row1 += 8;
-                                               row2 += 8;
-                                       }
-                                       if (j & 1)
-                                       {
-                                               LERPBYTE( 0);
-                                               LERPBYTE( 1);
-                                               LERPBYTE( 2);
-                                               LERPBYTE( 3);
-                                               out += 4;
-                                               row1 += 4;
-                                               row2 += 4;
-                                       }
-                                       row1 -= outwidth4;
-                                       row2 -= outwidth4;
-                               }
-                               else
-                               {
-                                       if (yi != oldy)
-                                       {
-                                               inrow = (byte *)indata + inwidth4*yi;
-                                               if (yi == oldy+1)
-                                                       memcpy(row1, row2, outwidth4);
-                                               else
-                                                       R_ResampleTextureLerpLine (inrow, row1, inwidth, outwidth, bytesperpixel);
-                                               oldy = yi;
-                                       }
-                                       memcpy(out, row1, outwidth4);
-                               }
-                       }
-               }
-               else
-               {
-                       int i, j;
-                       unsigned frac, fracstep;
-                       // relies on int being 4 bytes
-                       int *inrow, *out;
-                       out = outdata;
-
-                       fracstep = inwidth*0x10000/outwidth;
-                       for (i = 0;i < outheight;i++)
-                       {
-                               inrow = (int *)indata + inwidth*(i*inheight/outheight);
-                               frac = fracstep >> 1;
-                               j = outwidth - 4;
-                               while (j >= 0)
-                               {
-                                       out[0] = inrow[frac >> 16];frac += fracstep;
-                                       out[1] = inrow[frac >> 16];frac += fracstep;
-                                       out[2] = inrow[frac >> 16];frac += fracstep;
-                                       out[3] = inrow[frac >> 16];frac += fracstep;
-                                       out += 4;
-                                       j -= 4;
-                               }
-                               if (j & 2)
-                               {
-                                       out[0] = inrow[frac >> 16];frac += fracstep;
-                                       out[1] = inrow[frac >> 16];frac += fracstep;
-                                       out += 2;
-                               }
-                               if (j & 1)
-                               {
-                                       out[0] = inrow[frac >> 16];frac += fracstep;
-                                       out += 1;
-                               }
-                       }
-               }
-       }
-       else if (bytesperpixel == 3)
+       if (resizebuffersize < size)
        {
-               if (r_lerpimages.integer)
-               {
-                       int             i, j, yi, oldy, f, fstep, lerp, endy = (inheight-1), inwidth3 = inwidth * 3, outwidth3 = outwidth * 3;
-                       byte    *inrow, *out;
-                       out = outdata;
-                       fstep = (int) (inheight*65536.0f/outheight);
-
-                       inrow = indata;
-                       oldy = 0;
-                       R_ResampleTextureLerpLine (inrow, row1, inwidth, outwidth, bytesperpixel);
-                       R_ResampleTextureLerpLine (inrow + inwidth3, row2, inwidth, outwidth, bytesperpixel);
-                       for (i = 0, f = 0;i < outheight;i++,f += fstep)
-                       {
-                               yi = f >> 16;
-                               if (yi < endy)
-                               {
-                                       lerp = f & 0xFFFF;
-                                       if (yi != oldy)
-                                       {
-                                               inrow = (byte *)indata + inwidth3*yi;
-                                               if (yi == oldy+1)
-                                                       memcpy(row1, row2, outwidth3);
-                                               else
-                                                       R_ResampleTextureLerpLine (inrow, row1, inwidth, outwidth, bytesperpixel);
-                                               R_ResampleTextureLerpLine (inrow + inwidth3, row2, inwidth, outwidth, bytesperpixel);
-                                               oldy = yi;
-                                       }
-                                       j = outwidth - 4;
-                                       while(j >= 0)
-                                       {
-#define LERPBYTE(i) out[i] = (byte) ((((row2[i] - row1[i]) * lerp) >> 16) + row1[i])
-                                               LERPBYTE( 0);
-                                               LERPBYTE( 1);
-                                               LERPBYTE( 2);
-                                               LERPBYTE( 3);
-                                               LERPBYTE( 4);
-                                               LERPBYTE( 5);
-                                               LERPBYTE( 6);
-                                               LERPBYTE( 7);
-                                               LERPBYTE( 8);
-                                               LERPBYTE( 9);
-                                               LERPBYTE(10);
-                                               LERPBYTE(11);
-                                               out += 12;
-                                               row1 += 12;
-                                               row2 += 12;
-                                               j -= 4;
-                                       }
-                                       if (j & 2)
-                                       {
-                                               LERPBYTE( 0);
-                                               LERPBYTE( 1);
-                                               LERPBYTE( 2);
-                                               LERPBYTE( 3);
-                                               LERPBYTE( 4);
-                                               LERPBYTE( 5);
-                                               out += 6;
-                                               row1 += 6;
-                                               row2 += 6;
-                                       }
-                                       if (j & 1)
-                                       {
-                                               LERPBYTE( 0);
-                                               LERPBYTE( 1);
-                                               LERPBYTE( 2);
-                                               out += 3;
-                                               row1 += 3;
-                                               row2 += 3;
-                                       }
-                                       row1 -= outwidth3;
-                                       row2 -= outwidth3;
-                               }
-                               else
-                               {
-                                       if (yi != oldy)
-                                       {
-                                               inrow = (byte *)indata + inwidth3*yi;
-                                               if (yi == oldy+1)
-                                                       memcpy(row1, row2, outwidth3);
-                                               else
-                                                       R_ResampleTextureLerpLine (inrow, row1, inwidth, outwidth, bytesperpixel);
-                                               oldy = yi;
-                                       }
-                                       memcpy(out, row1, outwidth3);
-                               }
-                       }
-               }
-               else
-               {
-                       int i, j, f, inwidth3 = inwidth * 3;
-                       unsigned frac, fracstep;
-                       byte *inrow, *out;
-                       out = outdata;
-
-                       fracstep = inwidth*0x10000/outwidth;
-                       for (i = 0;i < outheight;i++)
-                       {
-                               inrow = (byte *)indata + inwidth3*(i*inheight/outheight);
-                               frac = fracstep >> 1;
-                               j = outwidth - 4;
-                               while (j >= 0)
-                               {
-                                       f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
-                                       f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
-                                       f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
-                                       f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
-                                       j -= 4;
-                               }
-                               if (j & 2)
-                               {
-                                       f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
-                                       f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
-                                       out += 2;
-                               }
-                               if (j & 1)
-                               {
-                                       f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
-                                       out += 1;
-                               }
-                       }
-               }
+               resizebuffersize = size;
+               if (resizebuffer)
+                       Mem_Free(resizebuffer);
+               if (colorconvertbuffer)
+                       Mem_Free(colorconvertbuffer);
+               resizebuffer = Mem_Alloc(textureprocessingmempool, resizebuffersize);
+               colorconvertbuffer = Mem_Alloc(textureprocessingmempool, resizebuffersize);
+               if (!resizebuffer || !colorconvertbuffer)
+                       Host_Error("R_Upload: out of memory\n");
        }
-       else
-               Sys_Error("R_ResampleTexture: unsupported bytesperpixel %i\n", bytesperpixel);
-#undef row1
-#undef row2
 }
 
-// in can be the same as out
-static void R_MipReduce(byte *in, byte *out, int *width, int *height, int destwidth, int destheight, int bytesperpixel)
+static void GL_SetupTextureParameters(int flags, int texturetype)
 {
-       int x, y, nextrow;
-       nextrow = *width * bytesperpixel;
-       if (*width > destwidth)
-       {
-               *width >>= 1;
-               if (*height > destheight)
-               {
-                       // reduce both
-                       *height >>= 1;
-                       if (bytesperpixel == 4)
-                       {
-                               for (y = 0;y < *height;y++)
-                               {
-                                       for (x = 0;x < *width;x++)
-                                       {
-                                               out[0] = (byte) ((in[0] + in[4] + in[nextrow  ] + in[nextrow+4]) >> 2);
-                                               out[1] = (byte) ((in[1] + in[5] + in[nextrow+1] + in[nextrow+5]) >> 2);
-                                               out[2] = (byte) ((in[2] + in[6] + in[nextrow+2] + in[nextrow+6]) >> 2);
-                                               out[3] = (byte) ((in[3] + in[7] + in[nextrow+3] + in[nextrow+7]) >> 2);
-                                               out += 4;
-                                               in += 8;
-                                       }
-                                       in += nextrow; // skip a line
-                               }
-                       }
-                       else if (bytesperpixel == 3)
-                       {
-                               for (y = 0;y < *height;y++)
-                               {
-                                       for (x = 0;x < *width;x++)
-                                       {
-                                               out[0] = (byte) ((in[0] + in[3] + in[nextrow  ] + in[nextrow+3]) >> 2);
-                                               out[1] = (byte) ((in[1] + in[4] + in[nextrow+1] + in[nextrow+4]) >> 2);
-                                               out[2] = (byte) ((in[2] + in[5] + in[nextrow+2] + in[nextrow+5]) >> 2);
-                                               out += 3;
-                                               in += 6;
-                                       }
-                                       in += nextrow; // skip a line
-                               }
-                       }
-                       else
-                               Sys_Error("R_MipReduce: unsupported bytesperpixel %i\n", bytesperpixel);
-               }
-               else
-               {
-                       // reduce width
-                       if (bytesperpixel == 4)
-                       {
-                               for (y = 0;y < *height;y++)
-                               {
-                                       for (x = 0;x < *width;x++)
-                                       {
-                                               out[0] = (byte) ((in[0] + in[4]) >> 1);
-                                               out[1] = (byte) ((in[1] + in[5]) >> 1);
-                                               out[2] = (byte) ((in[2] + in[6]) >> 1);
-                                               out[3] = (byte) ((in[3] + in[7]) >> 1);
-                                               out += 4;
-                                               in += 8;
-                                       }
-                               }
-                       }
-                       else if (bytesperpixel == 3)
-                       {
-                               for (y = 0;y < *height;y++)
-                               {
-                                       for (x = 0;x < *width;x++)
-                                       {
-                                               out[0] = (byte) ((in[0] + in[3]) >> 1);
-                                               out[1] = (byte) ((in[1] + in[4]) >> 1);
-                                               out[2] = (byte) ((in[2] + in[5]) >> 1);
-                                               out += 3;
-                                               in += 6;
-                                       }
-                               }
-                       }
-                       else
-                               Sys_Error("R_MipReduce: unsupported bytesperpixel %i\n", bytesperpixel);
-               }
-       }
+       int textureenum = gltexturetypeenums[texturetype];
+       int wrapmode = (flags & TEXF_CLAMP) ? GL_CLAMP : GL_REPEAT;
+
+       CHECKGLERROR
+
+       qglTexParameteri(textureenum, GL_TEXTURE_WRAP_S, wrapmode);
+       qglTexParameteri(textureenum, GL_TEXTURE_WRAP_T, wrapmode);
+       if (gltexturetypedimensions[texturetype] >= 3)
+               qglTexParameteri(textureenum, GL_TEXTURE_WRAP_R, wrapmode);
+
+       if (flags & TEXF_MIPMAP)
+               qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_min);
        else
-       {
-               if (*height > destheight)
-               {
-                       // reduce height
-                       *height >>= 1;
-                       if (bytesperpixel == 4)
-                       {
-                               for (y = 0;y < *height;y++)
-                               {
-                                       for (x = 0;x < *width;x++)
-                                       {
-                                               out[0] = (byte) ((in[0] + in[nextrow  ]) >> 1);
-                                               out[1] = (byte) ((in[1] + in[nextrow+1]) >> 1);
-                                               out[2] = (byte) ((in[2] + in[nextrow+2]) >> 1);
-                                               out[3] = (byte) ((in[3] + in[nextrow+3]) >> 1);
-                                               out += 4;
-                                               in += 4;
-                                       }
-                                       in += nextrow; // skip a line
-                               }
-                       }
-                       else if (bytesperpixel == 3)
-                       {
-                               for (y = 0;y < *height;y++)
-                               {
-                                       for (x = 0;x < *width;x++)
-                                       {
-                                               out[0] = (byte) ((in[0] + in[nextrow  ]) >> 1);
-                                               out[1] = (byte) ((in[1] + in[nextrow+1]) >> 1);
-                                               out[2] = (byte) ((in[2] + in[nextrow+2]) >> 1);
-                                               out += 3;
-                                               in += 3;
-                                       }
-                                       in += nextrow; // skip a line
-                               }
-                       }
-                       else
-                               Sys_Error("R_MipReduce: unsupported bytesperpixel %i\n", bytesperpixel);
-               }
-               else
-                       Sys_Error("R_MipReduce: desired size already achieved\n");
-       }
+               qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
+       qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
+
+       CHECKGLERROR
 }
 
-static void R_Upload(gltexture_t *glt, byte *data)
+static void R_Upload(gltexture_t *glt, qbyte *data)
 {
-       int mip, width, height, internalformat;
-       byte *prevbuffer;
+       int i, mip, width, height, depth, internalformat;
+       qbyte *prevbuffer;
        prevbuffer = data;
 
-       glBindTexture(GL_TEXTURE_2D, glt->image->texnum);
        CHECKGLERROR
 
+       glt->texnum = glt->image->texnum;
+       qglBindTexture(gltexturetypeenums[glt->image->texturetype], glt->image->texnum);
+       CHECKGLERROR
        glt->flags &= ~GLTEXF_UPLOAD;
+       gl_backend_rebindtextures = true;
 
        if (glt->flags & TEXF_FRAGMENT)
        {
-               if (resizebuffersize < glt->image->width * glt->image->height * glt->image->bytesperpixel)
-               {
-                       resizebuffersize = glt->image->width * glt->image->height * glt->image->bytesperpixel;
-                       if (resizebuffer)
-                               Mem_Free(resizebuffer);
-                       if (colorconvertbuffer)
-                               Mem_Free(colorconvertbuffer);
-                       resizebuffer = Mem_Alloc(texturemempool, resizebuffersize);
-                       colorconvertbuffer = Mem_Alloc(texturemempool, resizebuffersize);
-                       if (!resizebuffer || !colorconvertbuffer)
-                               Host_Error("R_Upload: out of memory\n");
-               }
-
                if (glt->image->flags & GLTEXF_UPLOAD)
                {
                        glt->image->flags &= ~GLTEXF_UPLOAD;
-                       memset(resizebuffer, 255, glt->image->width * glt->image->height * glt->image->bytesperpixel);
-                       glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
-                       CHECKGLERROR
-                       glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                       CHECKGLERROR
-                       glTexImage2D (GL_TEXTURE_2D, 0, glt->image->glinternalformat, glt->image->width, glt->image->height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, resizebuffer);
-                       CHECKGLERROR
+                       Con_DPrintf("uploaded new fragments image\n");
+                       R_MakeResizeBufferBigger(glt->image->width * glt->image->height * glt->image->depth * glt->image->bytesperpixel);
+                       memset(resizebuffer, 255, glt->image->width * glt->image->height * glt->image->depth * glt->image->bytesperpixel);
+                       switch(glt->image->texturetype)
+                       {
+                       case GLTEXTURETYPE_1D:
+                               qglTexImage1D(GL_TEXTURE_1D, 0, glt->image->glinternalformat, glt->image->width, 0, glt->image->glformat, GL_UNSIGNED_BYTE, resizebuffer);
+                               CHECKGLERROR
+                               break;
+                       case GLTEXTURETYPE_2D:
+                               qglTexImage2D(GL_TEXTURE_2D, 0, glt->image->glinternalformat, glt->image->width, glt->image->height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, resizebuffer);
+                               CHECKGLERROR
+                               break;
+                       case GLTEXTURETYPE_3D:
+                               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);
+                               CHECKGLERROR
+                               break;
+                       default:
+                               Host_Error("R_Upload: fragment texture of type other than 1D, 2D, or 3D\n");
+                               break;
+                       }
+                       GL_SetupTextureParameters(glt->image->flags, glt->image->texturetype);
                }
 
                if (prevbuffer == NULL)
                {
-                       memset(resizebuffer, 255, glt->width * glt->height * glt->image->bytesperpixel);
+                       R_MakeResizeBufferBigger(glt->image->width * glt->image->height * glt->image->depth * glt->image->bytesperpixel);
+                       memset(resizebuffer, 255, glt->width * glt->height * glt->image->depth * glt->image->bytesperpixel);
                        prevbuffer = resizebuffer;
                }
-               else if (glt->textype->textype == TEXTYPE_QPALETTE)
+               else if (glt->textype->textype == TEXTYPE_PALETTE)
                {
                        // promote paletted to RGBA, so we only have to worry about RGB and
                        // RGBA in the rest of this code
-                       Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, glt->width * glt->height, d_8to24table);
+                       R_MakeResizeBufferBigger(glt->image->width * glt->image->height * glt->image->depth * glt->image->sides * glt->image->bytesperpixel);
+                       Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, glt->width * glt->height * glt->depth, glt->palette);
                        prevbuffer = colorconvertbuffer;
                }
 
-               glTexSubImage2D(GL_TEXTURE_2D, 0, glt->x, glt->y, glt->width, glt->height, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
-               CHECKGLERROR
+               switch(glt->image->texturetype)
+               {
+               case GLTEXTURETYPE_1D:
+                       qglTexSubImage1D(GL_TEXTURE_1D, 0, glt->x, glt->width, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
+                       CHECKGLERROR
+                       break;
+               case GLTEXTURETYPE_2D:
+                       qglTexSubImage2D(GL_TEXTURE_2D, 0, glt->x, glt->y, glt->width, glt->height, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
+                       CHECKGLERROR
+                       break;
+               case GLTEXTURETYPE_3D:
+                       qglTexSubImage3D(GL_TEXTURE_3D, 0, glt->x, glt->y, glt->z, glt->width, glt->height, glt->depth, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
+                       CHECKGLERROR
+                       break;
+               default:
+                       Host_Error("R_Upload: fragment texture of type other than 1D, 2D, or 3D\n");
+                       break;
+               }
+               glt->texnum = glt->image->texnum;
                return;
        }
 
        glt->image->flags &= ~GLTEXF_UPLOAD;
 
        // these are rounded up versions of the size to do better resampling
-       width = 1;while(width < glt->width) width *= 2;
-       height = 1;while(height < glt->height) height *= 2;
+       for (width  = 1;width  < glt->width ;width  <<= 1);
+       for (height = 1;height < glt->height;height <<= 1);
+       for (depth  = 1;depth  < glt->depth ;depth  <<= 1);
 
-       if (resizebuffersize < width * height * glt->image->bytesperpixel)
-       {
-               resizebuffersize = width * height * glt->image->bytesperpixel;
-               if (resizebuffer)
-                       Mem_Free(resizebuffer);
-               if (colorconvertbuffer)
-                       Mem_Free(colorconvertbuffer);
-               resizebuffer = Mem_Alloc(texturemempool, resizebuffersize);
-               colorconvertbuffer = Mem_Alloc(texturemempool, resizebuffersize);
-               if (!resizebuffer || !colorconvertbuffer)
-                       Host_Error("R_Upload: out of memory\n");
-       }
+       R_MakeResizeBufferBigger(width * height * depth * glt->image->sides * glt->image->bytesperpixel);
 
        if (prevbuffer == NULL)
        {
                width = glt->image->width;
                height = glt->image->height;
-               memset(resizebuffer, 255, width * height * glt->image->bytesperpixel);
+               depth = glt->image->depth;
+               memset(resizebuffer, 255, width * height * depth * glt->image->bytesperpixel);
                prevbuffer = resizebuffer;
        }
        else
        {
-               if (glt->textype->textype == TEXTYPE_QPALETTE)
+               if (glt->textype->textype == TEXTYPE_PALETTE)
                {
                        // promote paletted to RGBA, so we only have to worry about RGB and
                        // RGBA in the rest of this code
-                       Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, glt->width * glt->height, d_8to24table);
+                       Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, glt->width * glt->height * glt->depth * glt->image->sides, glt->palette);
                        prevbuffer = colorconvertbuffer;
                }
-
-               if (glt->width != width || glt->height != height)
-               {
-                       R_ResampleTexture(prevbuffer, glt->width, glt->height, resizebuffer, width, height, glt->image->bytesperpixel);
-                       prevbuffer = resizebuffer;
-               }
-
-               // apply picmip/max_size limitations
-               while (width > glt->image->width || height > glt->image->height)
-               {
-                       R_MipReduce(prevbuffer, resizebuffer, &width, &height, glt->image->width, glt->image->height, glt->image->bytesperpixel);
-                       prevbuffer = resizebuffer;
-               }
        }
 
        // 3 and 4 are converted by the driver to it's preferred format for the current display mode
@@ -1087,47 +689,122 @@ static void R_Upload(gltexture_t *glt, byte *data)
        if (glt->flags & TEXF_ALPHA)
                internalformat = 4;
 
-       mip = 0;
-       glTexImage2D(GL_TEXTURE_2D, mip++, internalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
-       CHECKGLERROR
-       if (glt->flags & TEXF_MIPMAP)
+       // cubemaps contain multiple images and thus get processed a bit differently
+       if (glt->image->texturetype != GLTEXTURETYPE_CUBEMAP)
        {
-               while (width > 1 || height > 1)
+               if (glt->width != width || glt->height != height || glt->depth != depth)
                {
-                       R_MipReduce(prevbuffer, resizebuffer, &width, &height, 1, 1, glt->image->bytesperpixel);
+                       Image_Resample(prevbuffer, glt->width, glt->height, glt->depth, resizebuffer, width, height, depth, glt->image->bytesperpixel, r_lerpimages.integer);
+                       prevbuffer = resizebuffer;
+               }
+               // picmip/max_size
+               while (width > glt->image->width || height > glt->image->height || depth > glt->image->depth)
+               {
+                       Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, glt->image->width, glt->image->height, glt->image->depth, glt->image->bytesperpixel);
                        prevbuffer = resizebuffer;
-
-                       glTexImage2D(GL_TEXTURE_2D, mip++, internalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
-                       CHECKGLERROR
                }
-
-               glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
-               CHECKGLERROR
-               glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-               CHECKGLERROR
        }
-       else
+       mip = 0;
+       switch(glt->image->texturetype)
        {
-               glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
+       case GLTEXTURETYPE_1D:
+               qglTexImage1D(GL_TEXTURE_1D, mip++, internalformat, width, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
+               CHECKGLERROR
+               if (glt->flags & TEXF_MIPMAP)
+               {
+                       while (width > 1 || height > 1 || depth > 1)
+                       {
+                               Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->image->bytesperpixel);
+                               prevbuffer = resizebuffer;
+                               qglTexImage1D(GL_TEXTURE_1D, mip++, internalformat, width, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
+                               CHECKGLERROR
+                       }
+               }
+               break;
+       case GLTEXTURETYPE_2D:
+               qglTexImage2D(GL_TEXTURE_2D, mip++, internalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
                CHECKGLERROR
-               glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
+               if (glt->flags & TEXF_MIPMAP)
+               {
+                       while (width > 1 || height > 1 || depth > 1)
+                       {
+                               Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->image->bytesperpixel);
+                               prevbuffer = resizebuffer;
+                               qglTexImage2D(GL_TEXTURE_2D, mip++, internalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
+                               CHECKGLERROR
+                       }
+               }
+               break;
+       case GLTEXTURETYPE_3D:
+               qglTexImage3D(GL_TEXTURE_3D, mip++, internalformat, width, height, depth, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
                CHECKGLERROR
+               if (glt->flags & TEXF_MIPMAP)
+               {
+                       while (width > 1 || height > 1 || depth > 1)
+                       {
+                               Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->image->bytesperpixel);
+                               prevbuffer = resizebuffer;
+                               qglTexImage3D(GL_TEXTURE_3D, mip++, internalformat, width, height, depth, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
+                               CHECKGLERROR
+                       }
+               }
+               break;
+       case GLTEXTURETYPE_CUBEMAP:
+               // convert and upload each side in turn,
+               // from a continuous block of input texels
+               texturebuffer = prevbuffer;
+               for (i = 0;i < 6;i++)
+               {
+                       prevbuffer = texturebuffer;
+                       texturebuffer += width * height * depth * glt->textype->inputbytesperpixel;
+                       if (glt->width != width || glt->height != height || glt->depth != depth)
+                       {
+                               Image_Resample(prevbuffer, glt->width, glt->height, glt->depth, resizebuffer, width, height, depth, glt->image->bytesperpixel, r_lerpimages.integer);
+                               prevbuffer = resizebuffer;
+                       }
+                       // picmip/max_size
+                       while (width > glt->image->width || height > glt->image->height || depth > glt->image->depth)
+                       {
+                               Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, glt->image->width, glt->image->height, glt->image->depth, glt->image->bytesperpixel);
+                               prevbuffer = resizebuffer;
+                       }
+                       mip = 0;
+                       qglTexImage2D(cubemapside[i], mip++, internalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
+                       CHECKGLERROR
+                       if (glt->flags & TEXF_MIPMAP)
+                       {
+                               while (width > 1 || height > 1 || depth > 1)
+                               {
+                                       Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1, glt->image->bytesperpixel);
+                                       prevbuffer = resizebuffer;
+                                       qglTexImage2D(cubemapside[i], mip++, internalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
+                                       CHECKGLERROR
+                               }
+                       }
+               }
+               break;
        }
+       GL_SetupTextureParameters(glt->image->flags, glt->image->texturetype);
 }
 
 static void R_FindImageForTexture(gltexture_t *glt)
 {
-       int i, j, best, best2, x, y, w, h;
+       int i, j, best, best2, x, y, z, w, h, d;
        textypeinfo_t *texinfo;
        gltexturepool_t *pool;
        gltextureimage_t *image, **imagechainpointer;
        texinfo = glt->textype;
        pool = glt->pool;
 
+       // remains -1 until uploaded
+       glt->texnum = -1;
+
        x = 0;
        y = 0;
+       z = 0;
        w = glt->width;
        h = glt->height;
+       d = glt->depth;
        if (glt->flags & TEXF_FRAGMENT)
        {
                for (imagechainpointer = &pool->imagechain;*imagechainpointer;imagechainpointer = &(*imagechainpointer)->imagechain)
@@ -1135,12 +812,17 @@ static void R_FindImageForTexture(gltexture_t *glt)
                        image = *imagechainpointer;
                        if (image->type != GLIMAGETYPE_FRAGMENTS)
                                continue;
+                       if (image->texturetype != glt->texturetype)
+                               continue;
+                       if ((image->flags ^ glt->flags) & (TEXF_MIPMAP | TEXF_ALPHA | TEXF_CLAMP))
+                               continue;
                        if (image->glformat != texinfo->glformat || image->glinternalformat != texinfo->glinternalformat)
                                continue;
+                       if (glt->width > image->width || glt->height > image->height || glt->depth > image->depth)
+                               continue;
 
                        // got a fragments texture, find a place in it if we can
-                       best = BLOCK_SIZE;
-                       for (best = BLOCK_SIZE, i = 0;i < BLOCK_SIZE - w;i += texinfo->align)
+                       for (best = image->width, i = 0;i < image->width - w;i++)
                        {
                                for (best2 = 0, j = 0;j < w;j++)
                                {
@@ -1157,7 +839,7 @@ static void R_FindImageForTexture(gltexture_t *glt)
                                }
                        }
 
-                       if (best + h > BLOCK_SIZE)
+                       if (best + h > image->height)
                                continue;
 
                        for (i = 0;i < w;i++)
@@ -1165,6 +847,7 @@ static void R_FindImageForTexture(gltexture_t *glt)
 
                        glt->x = x;
                        glt->y = y;
+                       glt->z = 0;
                        glt->image = image;
                        image->texturecount++;
                        return;
@@ -1173,15 +856,21 @@ static void R_FindImageForTexture(gltexture_t *glt)
                image = Mem_Alloc(texturemempool, sizeof(gltextureimage_t));
                if (image == NULL)
                        Sys_Error("R_FindImageForTexture: ran out of memory\n");
-               //memset(image, 0, sizeof(*image));
                image->type = GLIMAGETYPE_FRAGMENTS;
-               image->width = BLOCK_SIZE;
-               image->height = BLOCK_SIZE;
-               image->blockallocation = Mem_Alloc(texturemempool, BLOCK_SIZE * sizeof(short));
-               memset(image->blockallocation, 0, BLOCK_SIZE * sizeof(short));
+               // make sure the created image is big enough for the fragment
+               for (image->width = block_size;image->width < glt->width;image->width <<= 1);
+               image->height = 1;
+               if (gltexturetypedimensions[glt->texturetype] >= 2)
+                       for (image->height = block_size;image->height < glt->height;image->height <<= 1);
+               image->depth = 1;
+               if (gltexturetypedimensions[glt->texturetype] >= 3)
+                       for (image->depth = block_size;image->depth < glt->depth;image->depth <<= 1);
+               image->blockallocation = Mem_Alloc(texturemempool, image->width * sizeof(short));
+               memset(image->blockallocation, 0, image->width * sizeof(short));
 
                x = 0;
                y = 0;
+               z = 0;
                for (i = 0;i < w;i++)
                        image->blockallocation[x + i] = y + h;
        }
@@ -1192,165 +881,103 @@ static void R_FindImageForTexture(gltexture_t *glt)
                image = Mem_Alloc(texturemempool, sizeof(gltextureimage_t));
                if (image == NULL)
                        Sys_Error("R_FindImageForTexture: ran out of memory\n");
-               //memset(image, 0, sizeof(*image));
                image->type = GLIMAGETYPE_TILE;
                image->blockallocation = NULL;
 
                // calculate final size
                if (r_max_size.integer > realmaxsize)
                        Cvar_SetValue("r_max_size", realmaxsize);
-               image->width = 1;while (image->width < glt->width) image->width <<= 1;
-               image->height = 1;while (image->height < glt->height) image->height <<= 1;
-               image->width >>= r_picmip.integer;while (image->width > r_max_size.integer) image->width >>= 1;
-               image->height >>= r_picmip.integer;while (image->height > r_max_size.integer) image->height >>= 1;
+               for (image->width = 1;image->width < glt->width;image->width <<= 1);
+               for (image->height = 1;image->height < glt->height;image->height <<= 1);
+               for (image->depth = 1;image->depth < glt->depth;image->depth <<= 1);
+               for (image->width >>= r_picmip.integer;image->width > r_max_size.integer;image->width >>= 1);
+               for (image->height >>= r_picmip.integer;image->height > r_max_size.integer;image->height >>= 1);
+               for (image->depth >>= r_picmip.integer;image->depth > r_max_size.integer;image->depth >>= 1);
                if (image->width < 1) image->width = 1;
                if (image->height < 1) image->height = 1;
+               if (image->depth < 1) image->depth = 1;
        }
+       image->texturetype = glt->texturetype;
        image->glinternalformat = texinfo->glinternalformat;
        image->glformat = texinfo->glformat;
-       image->flags = (glt->flags & (TEXF_MIPMAP | TEXF_ALPHA)) | GLTEXF_UPLOAD;
+       image->flags = (glt->flags & (TEXF_MIPMAP | TEXF_ALPHA | TEXF_CLAMP)) | GLTEXF_UPLOAD;
        image->bytesperpixel = texinfo->internalbytesperpixel;
-       for (i = 1;i < MAX_GLTEXTURES;i++)
-               if (!gltexnuminuse[i])
-                       break;
-       if (i < MAX_GLTEXTURES)
-               gltexnuminuse[image->texnum = i] = true;
-       else
-               Sys_Error("R_FindImageForTexture: ran out of GL textures\n");
+       image->sides = image->texturetype == GLTEXTURETYPE_CUBEMAP ? 6 : 1;
+       // get a texture number to use
+       qglGenTextures(1, &image->texnum);
        *imagechainpointer = image;
        image->texturecount++;
 
        glt->x = x;
        glt->y = y;
+       glt->y = z;
        glt->image = image;
 }
 
 // note: R_FindImageForTexture must be called before this
 static void R_UploadTexture (gltexture_t *glt)
 {
-       if (!(glt->flags & (GLTEXF_UPLOAD | GLTEXF_PROCEDURAL)))
+       if (!(glt->flags & GLTEXF_UPLOAD))
                return;
 
-       if (glt->flags & GLTEXF_PROCEDURAL)
-       {
-               if (glt->generate)
-               {
-                       if (texturebuffersize < glt->width * glt->height * glt->textype->inputbytesperpixel)
-                       {
-                               if (texturebuffer)
-                                       Mem_Free(texturebuffer);
-                               texturebuffersize = glt->width * glt->height * glt->textype->inputbytesperpixel;
-                               texturebuffer = Mem_Alloc(texturemempool, texturebuffersize);
-                       }
-
-                       glt->generate(texturebuffer, glt->width, glt->height, (void *)glt->proceduraldata, glt->proceduraldatasize);
-               }
-       }
-       else
-       {
-               R_Upload(glt, glt->inputtexels);
-               if (glt->inputtexels)
-               {
-                       Mem_Free(glt->inputtexels);
-                       glt->inputtexels = NULL;
-                       glt->flags |= GLTEXF_DESTROYED;
-               }
-               else if (glt->flags & GLTEXF_DESTROYED)
-                       Con_Printf("R_UploadTexture: Texture %s already uploaded and destroyed.  Can not upload original image again.  Uploaded blank texture.\n", glt->identifier);
-       }
-}
-
-static gltexture_t *R_SetupTexture(gltexturepool_t *pool, char *identifier, int crc, int width, int height, int flags, textypeinfo_t *texinfo, byte *data, int (*generate)(byte *buffer, int width, int height, void *proceduraldata, int proceduraldatasize), void *proceduraldata, int proceduraldatasize)
-{
-       gltexture_t *glt;
-       glt = Mem_Alloc(texturemempool, sizeof(gltexture_t));
-       //memset(glt, 0, sizeof(gltexture_t));
-       if (identifier)
-       {
-               glt->identifier = Mem_Alloc(texturemempool, strlen(identifier)+1);
-               strcpy (glt->identifier, identifier);
-       }
-       else
-               glt->identifier = NULL;
-       glt->pool = pool;
-       glt->chain = pool->gltchain;
-       pool->gltchain = glt;
-       glt->crc = crc;
-       glt->width = width;
-       glt->height = height;
-       glt->flags = flags;
-       glt->textype = texinfo;
-
-       if (data)
+       R_Upload(glt, glt->inputtexels);
+       if (glt->inputtexels)
        {
-               glt->inputtexels = Mem_Alloc(texturemempool, glt->width * glt->height * texinfo->inputbytesperpixel);
-               if (glt->inputtexels == NULL)
-                       Sys_Error("R_SetupTexture: out of memory\n");
-               memcpy(glt->inputtexels, data, glt->width * glt->height * texinfo->inputbytesperpixel);
-       }
-       else
+               Mem_Free(glt->inputtexels);
                glt->inputtexels = NULL;
-
-       glt->generate = generate;
-       glt->proceduraldatasize = proceduraldatasize;
-       if (proceduraldatasize)
-       {
-               glt->proceduraldata = Mem_Alloc(texturemempool, proceduraldatasize);
-               if (glt->proceduraldata == NULL)
-                       Sys_Error("R_SetupTexture: out of memory\n");
+               glt->flags |= GLTEXF_DESTROYED;
        }
-       else
-               glt->proceduraldata = NULL;
-
-       R_FindImageForTexture(glt);
-       R_PrecacheTexture(glt);
-
-       return glt;
+       else if (glt->flags & GLTEXF_DESTROYED)
+               Con_Printf("R_UploadTexture: Texture %s already uploaded and destroyed.  Can not upload original image again.  Uploaded blank texture.\n", glt->identifier);
 }
 
-/*
-================
-R_LoadTexture
-================
-*/
-rtexture_t *R_LoadTexture (rtexturepool_t *rtexturepool, char *identifier, int width, int height, byte *data, int textype, int flags)
+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)
 {
-       int i;
+       int i, size;
        gltexture_t *glt;
        gltexturepool_t *pool = (gltexturepool_t *)rtexturepool;
        textypeinfo_t *texinfo;
-       unsigned short crc;
 
        if (cls.state == ca_dedicated)
                return NULL;
 
-       texinfo = R_GetTexTypeInfo(textype, flags);
-
-       // data can be NULL
-//     if (data == NULL)
-//             Host_Error("R_LoadTexture: \"%s\" has no data\n", identifier);
+       if (flags & TEXF_FRAGMENT && texturetype != GLTEXTURETYPE_2D)
+               Sys_Error("R_LoadTexture: only 2D fragment textures implemented\n");
+       if (texturetype == GLTEXTURETYPE_CUBEMAP && !gl_texturecubemap)
+               Sys_Error("R_LoadTexture: cubemap texture not supported by driver\n");
+       if (texturetype == GLTEXTURETYPE_3D && !gl_texture3d)
+               Sys_Error("R_LoadTexture: 3d texture not supported by driver\n");
 
-       if (flags & TEXF_FRAGMENT)
+       /*
+       glt = R_FindTexture (pool, identifier);
+       if (glt)
        {
-               if (width > BLOCK_SIZE || height > BLOCK_SIZE)
-                       Host_Error("R_LoadTexture: fragment too big, must be no more than %dx%d\n", BLOCK_SIZE, BLOCK_SIZE);
-               if ((width * texinfo->internalbytesperpixel) & 3)
-                       Host_Error("R_LoadTexture: incompatible width for fragment");
+               Con_Printf("R_LoadTexture: replacing existing texture %s\n", identifier);
+               R_FreeTexture((rtexture_t *)glt);
        }
+       */
+
+       texinfo = R_GetTexTypeInfo(textype, flags);
+       size = width * height * depth * sides * texinfo->inputbytesperpixel;
+       if (size < 1)
+               Sys_Error("R_LoadTexture: bogus texture size (%dx%dx%dx%dbppx%dsides = %d bytes)\n", width, height, depth, texinfo->inputbytesperpixel * 8, sides);
 
        // clear the alpha flag if the texture has no transparent pixels
        switch(textype)
        {
-       case TEXTYPE_QPALETTE:
+       case TEXTYPE_PALETTE:
                if (flags & TEXF_ALPHA)
                {
                        flags &= ~TEXF_ALPHA;
-                       for (i = 0;i < width * height;i++)
+                       if (data)
                        {
-                               if (data[i] == 255)
+                               for (i = 0;i < size;i++)
                                {
-                                       flags |= TEXF_ALPHA;
-                                       break;
+                                       if (((qbyte *)&palette[data[i]])[3] == 255)
+                                       {
+                                               flags |= TEXF_ALPHA;
+                                               break;
+                                       }
                                }
                        }
                }
@@ -1363,12 +990,15 @@ rtexture_t *R_LoadTexture (rtexturepool_t *rtexturepool, char *identifier, int w
                if (flags & TEXF_ALPHA)
                {
                        flags &= ~TEXF_ALPHA;
-                       for (i = 0;i < width * height;i++)
+                       if (data)
                        {
-                               if (data[i * 4 + 3] < 255)
+                               for (i = 3;i < size;i += 4)
                                {
-                                       flags |= TEXF_ALPHA;
-                                       break;
+                                       if (data[i] < 255)
+                                       {
+                                               flags |= TEXF_ALPHA;
+                                               break;
+                                       }
                                }
                        }
                }
@@ -1377,106 +1007,108 @@ rtexture_t *R_LoadTexture (rtexturepool_t *rtexturepool, char *identifier, int w
                Host_Error("R_LoadTexture: unknown texture type\n");
        }
 
-       // LordHavoc: do a CRC to confirm the data really is the same as previous occurances.
-       if (data == NULL)
-               crc = 0;
+       glt = Mem_Alloc(texturemempool, sizeof(gltexture_t));
+       if (identifier)
+       {
+               glt->identifier = Mem_Alloc(texturemempool, strlen(identifier)+1);
+               strcpy (glt->identifier, identifier);
+       }
        else
-               crc = CRC_Block(data, width*height*texinfo->inputbytesperpixel);
+               glt->identifier = NULL;
+       glt->pool = pool;
+       glt->chain = pool->gltchain;
+       pool->gltchain = glt;
+       glt->width = width;
+       glt->height = height;
+       glt->depth = depth;
+       glt->flags = flags | GLTEXF_UPLOAD;
+       glt->textype = texinfo;
+       glt->texturetype = texturetype;
+       glt->inputdatasize = size;
+       glt->palette = palette;
 
-       // see if the texture is already present
-       if (identifier && (glt = R_FindTexture(pool, identifier)))
+       if (data)
        {
-               if (crc == glt->crc && width == glt->width && height == glt->height && texinfo == glt->textype && ((flags ^ glt->flags) & TEXF_IMPORTANTBITS) == 0 && ((flags ^ glt->flags) & GLTEXF_IMPORTANTBITS) == 0)
-                       return (rtexture_t *)glt; // exact match, use existing
-               Con_Printf("R_LoadTexture: cache mismatch on %s, replacing old texture\n", identifier);
-               R_FreeTexture(glt);
+               glt->inputtexels = Mem_Alloc(texturedatamempool, size);
+               if (glt->inputtexels == NULL)
+                       Sys_Error("R_LoadTexture: out of memory\n");
+               memcpy(glt->inputtexels, data, size);
        }
+       else
+               glt->inputtexels = NULL;
+
+       R_FindImageForTexture(glt);
+       R_PrecacheTexture(glt);
 
-       return (rtexture_t *)R_SetupTexture(pool, identifier, crc, width, height, flags | GLTEXF_UPLOAD, texinfo, data, NULL, NULL, 0);
+       return (rtexture_t *)glt;
 }
 
-rtexture_t *R_ProceduralTexture (rtexturepool_t *rtexturepool, char *identifier, int width, int height, int textype, int flags, int (*generate)(byte *buffer, int width, int height, void *proceduraldata, int proceduraldatasize), void *proceduraldata, int proceduraldatasize)
+rtexture_t *R_LoadTexture1D(rtexturepool_t *rtexturepool, const char *identifier, int width, const qbyte *data, int textype, int flags, const unsigned int *palette)
 {
-       gltexture_t             *glt;
-       gltexturepool_t *pool = (gltexturepool_t *)rtexturepool;
-       textypeinfo_t   *texinfo;
-
-       if (cls.state == ca_dedicated)
-               return NULL;
-
-       texinfo = R_GetTexTypeInfo(textype, flags);
+       return R_SetupTexture(rtexturepool, identifier, width, 1, 1, 1, flags, textype, GLTEXTURETYPE_1D, data, palette);
+}
 
-       // no function is supported, for odd uses
-//     if (generate == NULL)
-//             Host_Error("R_ProceduralTexture: \"%s\" has no generate function\n", identifier);
-       if (flags & TEXF_FRAGMENT)
-       {
-               if (width > BLOCK_SIZE || height > BLOCK_SIZE)
-                       Host_Error("R_ProceduralTexture: fragment too big, must be no more than %dx%d\n", BLOCK_SIZE, BLOCK_SIZE);
-               if ((width * texinfo->internalbytesperpixel) & 3)
-                       Host_Error("R_ProceduralTexture: incompatible width for fragment");
-       }
+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)
+{
+       return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, flags, textype, GLTEXTURETYPE_2D, data, palette);
+}
 
-       // see if the texture is already present
-       if (identifier && (glt = R_FindTexture(pool, identifier)))
-       {
-               if (width == glt->width && height == glt->height && texinfo == glt->textype && ((flags ^ glt->flags) & TEXF_IMPORTANTBITS) == 0 && ((flags ^ glt->flags) & GLTEXF_IMPORTANTBITS) == 0)
-                       return (rtexture_t *)glt; // exact match, use existing
-               Con_DPrintf("R_LoadTexture: cache mismatch, replacing old texture\n");
-               R_FreeTexture(glt);
-       }
+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)
+{
+       return R_SetupTexture(rtexturepool, identifier, width, height, depth, 1, flags, textype, GLTEXTURETYPE_3D, data, palette);
+}
 
-       return (rtexture_t *)R_SetupTexture(pool, identifier, 0, width, height, flags | GLTEXF_PROCEDURAL | GLTEXF_UPLOAD, texinfo, NULL, generate, proceduraldata, proceduraldatasize);
+rtexture_t *R_LoadTextureCubeMap(rtexturepool_t *rtexturepool, const char *identifier, int width, const qbyte *data, int textype, int flags, const unsigned int *palette)
+{
+       return R_SetupTexture(rtexturepool, identifier, width, width, 1, 6, flags, textype, GLTEXTURETYPE_CUBEMAP, data, palette);
 }
 
 int R_TextureHasAlpha(rtexture_t *rt)
 {
-       gltexture_t *glt;
-       if (!rt)
-               return false;
-       glt = (gltexture_t *)rt;
-       return (glt->flags & TEXF_ALPHA) != 0;
+       return rt ? (((gltexture_t *)rt)->flags & TEXF_ALPHA) != 0 : false;
 }
 
 int R_TextureWidth(rtexture_t *rt)
 {
-       if (!rt)
-               return false;
-       return ((gltexture_t *)rt)->width;
+       return rt ? ((gltexture_t *)rt)->width : 0;
 }
 
 int R_TextureHeight(rtexture_t *rt)
 {
-       if (!rt)
-               return false;
-       return ((gltexture_t *)rt)->height;
+       return rt ? ((gltexture_t *)rt)->height : 0;
 }
 
-void R_GetFragmentLocation(rtexture_t *rt, int *x, int *y, float *fx1, float *fy1, float *fx2, float *fy2)
+void R_FragmentLocation3D(rtexture_t *rt, int *x, int *y, int *z, float *fx1, float *fy1, float *fz1, float *fx2, float *fy2, float *fz2)
 {
        gltexture_t *glt;
-       float iwidth, iheight;
+       float iwidth, iheight, idepth;
        if (cls.state == ca_dedicated)
        {
                if (x)
                        *x = 0;
                if (y)
                        *y = 0;
+               if (z)
+                       *z = 0;
                if (fx1 || fy1 || fx2 || fy2)
                {
                        if (fx1)
                                *fx1 = 0;
                        if (fy1)
                                *fy1 = 0;
+                       if (fz1)
+                               *fz1 = 0;
                        if (fx2)
                                *fx2 = 1;
                        if (fy2)
                                *fy2 = 1;
+                       if (fz2)
+                               *fz2 = 1;
                }
                return;
        }
        if (!rt)
-               Host_Error("R_GetFragmentLocation: no texture supplied\n");
+               Host_Error("R_FragmentLocation: no texture supplied\n");
        glt = (gltexture_t *)rt;
        if (glt->flags & TEXF_FRAGMENT)
        {
@@ -1488,14 +1120,19 @@ void R_GetFragmentLocation(rtexture_t *rt, int *x, int *y, float *fx1, float *fy
                {
                        iwidth = 1.0f / glt->image->width;
                        iheight = 1.0f / glt->image->height;
+                       idepth = 1.0f / glt->image->depth;
                        if (fx1)
                                *fx1 = glt->x * iwidth;
                        if (fy1)
                                *fy1 = glt->y * iheight;
+                       if (fz1)
+                               *fz1 = glt->z * idepth;
                        if (fx2)
                                *fx2 = (glt->x + glt->width) * iwidth;
                        if (fy2)
                                *fy2 = (glt->y + glt->height) * iheight;
+                       if (fz2)
+                               *fz2 = (glt->z + glt->depth) * idepth;
                }
        }
        else
@@ -1504,29 +1141,37 @@ void R_GetFragmentLocation(rtexture_t *rt, int *x, int *y, float *fx1, float *fy
                        *x = 0;
                if (y)
                        *y = 0;
+               if (z)
+                       *z = 0;
                if (fx1 || fy1 || fx2 || fy2)
                {
                        if (fx1)
                                *fx1 = 0;
                        if (fy1)
                                *fy1 = 0;
+                       if (fz1)
+                               *fz1 = 0;
                        if (fx2)
                                *fx2 = 1;
                        if (fy2)
                                *fy2 = 1;
+                       if (fz2)
+                               *fz2 = 1;
                }
        }
 }
 
+void R_FragmentLocation(rtexture_t *rt, int *x, int *y, float *fx1, float *fy1, float *fx2, float *fy2)
+{
+       R_FragmentLocation3D(rt, x, y, NULL, fx1, fy1, NULL, fx2, fy2, NULL);
+}
+
 int R_CompatibleFragmentWidth(int width, int textype, int flags)
 {
-       textypeinfo_t *texinfo = R_GetTexTypeInfo(textype, flags);
-       while ((width * texinfo->internalbytesperpixel) & 3)
-               width++;
        return width;
 }
 
-void R_UpdateTexture(rtexture_t *rt, byte *data)
+void R_UpdateTexture(rtexture_t *rt, qbyte *data)
 {
        gltexture_t *glt;
        if (rt == NULL)
@@ -1534,16 +1179,11 @@ void R_UpdateTexture(rtexture_t *rt, byte *data)
        if (data == NULL)
                Host_Error("R_UpdateTexture: no data supplied\n");
        glt = (gltexture_t *)rt;
-       if (!(glt->flags & GLTEXF_PROCEDURAL))
-       {
-               if (glt->inputtexels == NULL)
-               {
-                       glt->inputtexels = Mem_Alloc(texturemempool, glt->width * glt->height * glt->textype->inputbytesperpixel);
-                       if (glt->inputtexels == NULL)
-                               Host_Error("R_UpdateTexture: ran out of memory\n");
-               }
-               memcpy(glt->inputtexels, data, glt->width * glt->height * glt->textype->inputbytesperpixel);
-       }
-       R_Upload(glt, data);
+
+       // if it has not been uploaded yet, update the data that will be used when it is
+       if (glt->inputtexels)
+               memcpy(glt->inputtexels, data, glt->inputdatasize);
+       else
+               R_Upload(glt, data);
 }