]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - gl_textures.c
fixed some dynamic lighting bugs related to glowing self
[xonotic/darkplaces.git] / gl_textures.c
index a2b005fae9391cd4a6554def3a746732c9d25edd..558b1f59cb457bfab6721dec5a539c06e0e5c99e 100644 (file)
@@ -1,5 +1,6 @@
 
 #include "quakedef.h"
+#include "image.h"
 
 cvar_t r_max_size = {CVAR_SAVE, "r_max_size", "2048"};
 cvar_t r_max_scrapsize = {CVAR_SAVE, "r_max_scrapsize", "256"};
@@ -18,24 +19,14 @@ 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
 static int block_size;
 
-// 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 qbyte *gltexnuminuse;
-
 typedef struct
 {
        int textype;
@@ -43,39 +34,61 @@ 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
@@ -85,24 +98,21 @@ 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)
+       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;
-       // to identify cache mismatchs (this might be removed someday)
-       int crc;
-       // flags supplied to the LoadTexture/ProceduralTexture functions
+       // 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)(qbyte *buffer, int width, int height, void *parameterdata, int parameterdatasize);
-       // data provided to generate, persistent from call to call
-       qbyte *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;
 
@@ -132,8 +142,8 @@ 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;
@@ -148,8 +158,8 @@ 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:
@@ -179,33 +189,25 @@ 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;
 }
 
 void R_FreeTexture(rtexture_t *rt)
 {
        gltexture_t *glt, **gltpointer;
        gltextureimage_t *image, **gltimagepointer;
-       GLuint texnum;
 
        glt = (gltexture_t *)rt;
        if (glt == NULL)
@@ -230,11 +232,7 @@ void R_FreeTexture(rtexture_t *rt)
                else
                        Host_Error("R_FreeTexture: image not linked in pool\n");
                if (image->texnum)
-               {
-                       texnum = image->texnum;
-                       gltexnuminuse[image->texnum] = 0;
-                       qglDeleteTextures(1, &texnum);
-               }
+                       qglDeleteTextures(1, &image->texnum);
                if (image->blockallocation)
                        Mem_Free(image->blockallocation);
                Mem_Free(image);
@@ -244,11 +242,10 @@ void R_FreeTexture(rtexture_t *rt)
                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;
@@ -262,6 +259,7 @@ static gltexture_t *R_FindTexture (gltexturepool_t *pool, char *identifier)
 
        return NULL;
 }
+*/
 
 rtexturepool_t *R_AllocTexturePool(void)
 {
@@ -375,9 +373,9 @@ static void GL_TextureMode_f (void)
 
 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)
@@ -385,35 +383,40 @@ static int R_CalcTexelDataSize (gltexture_t *glt)
                // calculate final size
                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)
@@ -421,16 +424,14 @@ 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;
                        }
                }
        }
@@ -442,16 +443,13 @@ 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);
        }
@@ -465,6 +463,9 @@ static void r_textures_start(void)
        // deal with size limits of various drivers (3dfx in particular)
        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);
@@ -472,7 +473,6 @@ static void r_textures_start(void)
        texturemempool = Mem_AllocPool("Texture Info");
        texturedatamempool = Mem_AllocPool("Texture Storage (not yet uploaded)");
        textureprocessingmempool = Mem_AllocPool("Texture Processing Buffers");
-       gltexnuminuse = Mem_Alloc(texturemempool, MAX_GLTEXTURES);
 }
 
 static void r_textures_shutdown(void)
@@ -489,7 +489,6 @@ static void r_textures_shutdown(void)
        resizebuffer = NULL;
        colorconvertbuffer = NULL;
        texturebuffer = NULL;
-       gltexnuminuse = NULL;
        Mem_FreePool(&texturemempool);
        Mem_FreePool(&texturedatamempool);
        Mem_FreePool(&textureprocessingmempool);
@@ -501,125 +500,179 @@ 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);
 }
 
+void R_Textures_Frame (void)
+{
+       // 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)
+       {
+               Mem_Free(resizebuffer);
+               resizebuffer = NULL;
+       }
+       if (colorconvertbuffer)
+       {
+               Mem_Free(colorconvertbuffer);
+               colorconvertbuffer = NULL;
+       }
+}
+
+void R_MakeResizeBufferBigger(int size)
+{
+       if (resizebuffersize < size)
+       {
+               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");
+       }
+}
+
+static void GL_SetupTextureParameters(int flags, int texturetype)
+{
+       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
+               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, qbyte *data)
 {
-       int mip, width, height, internalformat;
+       int i, mip, width, height, depth, internalformat;
        qbyte *prevbuffer;
        prevbuffer = data;
 
-       qglBindTexture(GL_TEXTURE_2D, glt->image->texnum);
        CHECKGLERROR
 
-       gl_backend_rebindtextures = true;
-
+       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(textureprocessingmempool, resizebuffersize);
-                       colorconvertbuffer = Mem_Alloc(textureprocessingmempool, resizebuffersize);
-                       if (!resizebuffer || !colorconvertbuffer)
-                               Host_Error("R_Upload: out of memory\n");
-               }
-
                if (glt->image->flags & GLTEXF_UPLOAD)
                {
-                       Con_DPrintf("uploaded new fragments image\n");
                        glt->image->flags &= ~GLTEXF_UPLOAD;
-                       memset(resizebuffer, 255, glt->image->width * glt->image->height * glt->image->bytesperpixel);
-                       qglTexImage2D (GL_TEXTURE_2D, 0, glt->image->glinternalformat, glt->image->width, glt->image->height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, resizebuffer);
-                       CHECKGLERROR
-                       qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
-                       CHECKGLERROR
-                       qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                       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;
                }
 
-               qglTexSubImage2D(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
-       for (width = 1;width < glt->width;width <<= 1);
+       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(textureprocessingmempool, resizebuffersize);
-               colorconvertbuffer = Mem_Alloc(textureprocessingmempool, 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)
-               {
-                       Image_Resample(prevbuffer, glt->width, glt->height, resizebuffer, width, height, glt->image->bytesperpixel, r_lerpimages.integer);
-                       prevbuffer = resizebuffer;
-               }
-
-               // apply picmip/max_size limitations
-               while (width > glt->image->width || height > glt->image->height)
-               {
-                       Image_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
@@ -627,47 +680,122 @@ static void R_Upload(gltexture_t *glt, qbyte *data)
        if (glt->flags & TEXF_ALPHA)
                internalformat = 4;
 
-       mip = 0;
-       qglTexImage2D(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)
                {
-                       Image_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;
-
-                       qglTexImage2D(GL_TEXTURE_2D, mip++, internalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
-                       CHECKGLERROR
                }
-
-               qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
-               CHECKGLERROR
-               qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-               CHECKGLERROR
        }
-       else
+       mip = 0;
+       switch(glt->image->texturetype)
        {
-               qglTexParameteri(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
-               qglTexParameteri(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)
@@ -675,12 +803,17 @@ 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++)
                                {
@@ -697,7 +830,7 @@ static void R_FindImageForTexture(gltexture_t *glt)
                                }
                        }
 
-                       if (best + h > block_size)
+                       if (best + h > image->height)
                                continue;
 
                        for (i = 0;i < w;i++)
@@ -705,6 +838,7 @@ static void R_FindImageForTexture(gltexture_t *glt)
 
                        glt->x = x;
                        glt->y = y;
+                       glt->z = 0;
                        glt->image = image;
                        image->texturecount++;
                        return;
@@ -714,13 +848,20 @@ static void R_FindImageForTexture(gltexture_t *glt)
                if (image == NULL)
                        Sys_Error("R_FindImageForTexture: ran out of memory\n");
                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;
        }
@@ -739,151 +880,93 @@ static void R_FindImageForTexture(gltexture_t *glt)
                        Cvar_SetValue("r_max_size", realmaxsize);
                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(textureprocessingmempool, 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, qbyte *data, int (*generate)(qbyte *buffer, int width, int height, void *proceduraldata, int proceduraldatasize), void *proceduraldata, int proceduraldatasize)
-{
-       gltexture_t *glt;
-       glt = Mem_Alloc(texturemempool, 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(texturedatamempool, 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, qbyte *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);
+       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;
 
        // 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;
+                                       }
                                }
                        }
                }
@@ -896,12 +979,15 @@ 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;
+                                       }
                                }
                        }
                }
@@ -910,104 +996,103 @@ 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)
-               {
-                       Con_Printf("R_LoadTexture: exact match with existing texture %s\n", identifier);
-                       return (rtexture_t *)glt; // exact match, use existing
-               }
-               Con_Printf("R_LoadTexture: cache mismatch on %s, replacing old texture\n", identifier);
-               R_FreeTexture((rtexture_t *)glt);
+               glt->inputtexels = Mem_Alloc(texturedatamempool, size);
+               if (glt->inputtexels == NULL)
+                       Sys_Error("R_SetupTexture: 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)(qbyte *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);
+}
 
-       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)
-               {
-                       Con_Printf("R_LoadTexture: exact match with existing texture %s\n", identifier);
-                       return (rtexture_t *)glt; // exact match, use existing
-               }
-               Con_Printf("R_LoadTexture: cache mismatch, replacing old texture\n");
-               R_FreeTexture((rtexture_t *)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_FragmentLocation(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;
        }
@@ -1024,14 +1109,19 @@ void R_FragmentLocation(rtexture_t *rt, int *x, int *y, float *fx1, float *fy1,
                {
                        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
@@ -1040,25 +1130,33 @@ void R_FragmentLocation(rtexture_t *rt, int *x, int *y, float *fx1, float *fy1,
                        *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;
 }
 
@@ -1073,7 +1171,7 @@ void R_UpdateTexture(rtexture_t *rt, qbyte *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->width * glt->height * glt->textype->inputbytesperpixel);
+               memcpy(glt->inputtexels, data, glt->inputdatasize);
        else
                R_Upload(glt, data);
 }