]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - gl_textures.c
added RENDERPATH_GLES2
[xonotic/darkplaces.git] / gl_textures.c
index 527ec31be07ffb434d5e02f6ac8fe4e20313e7cb..03dc5ef11a135e0bad63ec828680fc793b8cc375 100644 (file)
@@ -8,6 +8,7 @@ extern LPDIRECT3DDEVICE9 vid_d3d9dev;
 #include "jpeg.h"
 #include "image_png.h"
 #include "intoverflow.h"
+#include "dpsoftrast.h"
 
 cvar_t gl_max_size = {CVAR_SAVE, "gl_max_size", "2048", "maximum allowed texture size, can be used to reduce video memory usage, limited by hardware capabilities (typically 2048, 4096, or 8192)"};
 cvar_t gl_max_lightmapsize = {CVAR_SAVE, "gl_max_lightmapsize", "1024", "maximum allowed texture size for lightmap textures, use larger values to improve rendering speed, as long as there is enough video memory available (setting it too high for the hardware will cause very bad performance)"};
@@ -30,12 +31,16 @@ cvar_t gl_texturecompression_q3bspdeluxemaps = {CVAR_SAVE, "gl_texturecompressio
 cvar_t gl_texturecompression_sky = {CVAR_SAVE, "gl_texturecompression_sky", "0", "whether to compress sky textures"};
 cvar_t gl_texturecompression_lightcubemaps = {CVAR_SAVE, "gl_texturecompression_lightcubemaps", "1", "whether to compress light cubemaps (spotlights and other light projection images)"};
 cvar_t gl_texturecompression_reflectmask = {CVAR_SAVE, "gl_texturecompression_reflectmask", "1", "whether to compress reflection cubemap masks (mask of which areas of the texture should reflect the generic shiny cubemap)"};
-cvar_t gl_nopartialtextureupdates = {CVAR_SAVE, "gl_nopartialtextureupdates", "1", "use alternate path for dynamic lightmap updates that avoids a possibly slow code path in the driver"};
-cvar_t r_texture_dds_load_alphamode = {0, "r_texture_dds_load_alphamode", "0", "0: trust DDPF_ALPHAPIXELS flag, 1: texture format and brute force search if ambigous, 2: texture format only"};
+cvar_t gl_nopartialtextureupdates = {CVAR_SAVE, "gl_nopartialtextureupdates", "0", "use alternate path for dynamic lightmap updates that avoids a possibly slow code path in the driver"};
+cvar_t r_texture_dds_load_alphamode = {0, "r_texture_dds_load_alphamode", "1", "0: trust DDPF_ALPHAPIXELS flag, 1: texture format and brute force search if ambiguous, 2: texture format only"};
+cvar_t r_texture_dds_load_logfailure = {0, "r_texture_dds_load_logfailure", "1", "log missing DDS textures to ddstexturefailures.log"};
+cvar_t r_texture_dds_swdecode = {0, "r_texture_dds_swdecode", "0", "0: don't software decode DDS, 1: software decode DDS if unsupported, 2: always software decode DDS"};
 
 qboolean       gl_filter_force = false;
 int            gl_filter_min = GL_LINEAR_MIPMAP_LINEAR;
 int            gl_filter_mag = GL_LINEAR;
+DPSOFTRAST_TEXTURE_FILTER dpsoftrast_filter_mipmap = DPSOFTRAST_TEXTURE_FILTER_LINEAR_MIPMAP_TRIANGLE;
+DPSOFTRAST_TEXTURE_FILTER dpsoftrast_filter_nomipmap = DPSOFTRAST_TEXTURE_FILTER_LINEAR;
 
 #ifdef SUPPORTD3D
 int d3d_filter_flatmin = D3DTEXF_LINEAR;
@@ -95,13 +100,12 @@ typedef enum gltexturetype_e
        GLTEXTURETYPE_2D,
        GLTEXTURETYPE_3D,
        GLTEXTURETYPE_CUBEMAP,
-       GLTEXTURETYPE_RECTANGLE,
        GLTEXTURETYPE_TOTAL
 }
 gltexturetype_t;
 
-static int gltexturetypeenums[GLTEXTURETYPE_TOTAL] = {GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_RECTANGLE_ARB};
-static int gltexturetypedimensions[GLTEXTURETYPE_TOTAL] = {2, 3, 2, 2};
+static int gltexturetypeenums[GLTEXTURETYPE_TOTAL] = {GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP_ARB};
+static int gltexturetypedimensions[GLTEXTURETYPE_TOTAL] = {2, 3, 2};
 static int cubemapside[6] =
 {
        GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB,
@@ -122,6 +126,7 @@ typedef struct gltexture_s
        // d3d stuff the backend needs
        void *d3dtexture;
 #ifdef SUPPORTD3D
+       qboolean d3disdepthsurface; // for depth/stencil surfaces
        int d3dformat;
        int d3dusage;
        int d3dpool;
@@ -218,11 +223,11 @@ static textypeinfo_t *R_GetTexTypeInfo(textype_t textype, int flags)
        case TEXTYPE_PALETTE:
                return (flags & TEXF_ALPHA) ? &textype_palette_alpha : &textype_palette;
        case TEXTYPE_RGBA:
-               if ((flags & TEXF_COMPRESS) && gl_texturecompression.integer >= 1 && vid.support.arb_texture_compression)
+               if ((flags & TEXF_COMPRESS) && gl_texturecompression.integer >= 1 && vid.support.ext_texture_compression_s3tc)
                        return (flags & TEXF_ALPHA) ? &textype_rgba_alpha_compress : &textype_rgba_compress;
                return (flags & TEXF_ALPHA) ? &textype_rgba_alpha : &textype_rgba;
        case TEXTYPE_BGRA:
-               if ((flags & TEXF_COMPRESS) && gl_texturecompression.integer >= 1 && vid.support.arb_texture_compression)
+               if ((flags & TEXF_COMPRESS) && gl_texturecompression.integer >= 1 && vid.support.ext_texture_compression_s3tc)
                        return (flags & TEXF_ALPHA) ? &textype_bgra_alpha_compress : &textype_bgra_compress;
                return (flags & TEXF_ALPHA) ? &textype_bgra_alpha : &textype_bgra;
        case TEXTYPE_ALPHA:
@@ -292,10 +297,42 @@ void R_FreeTexture(rtexture_t *rt)
        else
                Host_Error("R_FreeTexture: texture \"%s\" not linked in pool", glt->identifier);
 
-       if (glt->texnum)
+       switch(vid.renderpath)
        {
-               CHECKGLERROR
-               qglDeleteTextures(1, (GLuint *)&glt->texnum);CHECKGLERROR
+       case RENDERPATH_GL11:
+       case RENDERPATH_GL13:
+       case RENDERPATH_GL20:
+       case RENDERPATH_CGGL:
+       case RENDERPATH_GLES2:
+               if (glt->texnum)
+               {
+                       CHECKGLERROR
+                       qglDeleteTextures(1, (GLuint *)&glt->texnum);CHECKGLERROR
+               }
+               break;
+       case RENDERPATH_D3D9:
+#ifdef SUPPORTD3D
+               if (glt->d3disdepthsurface)
+                       IDirect3DSurface9_Release((IDirect3DSurface9 *)glt->d3dtexture);
+               else if (glt->tiledepth > 1)
+                       IDirect3DVolumeTexture9_Release((IDirect3DVolumeTexture9 *)glt->d3dtexture);
+               else if (glt->sides == 6)
+                       IDirect3DCubeTexture9_Release((IDirect3DCubeTexture9 *)glt->d3dtexture);
+               else
+                       IDirect3DTexture9_Release((IDirect3DTexture9 *)glt->d3dtexture);
+               glt->d3dtexture = NULL;
+#endif
+               break;
+       case RENDERPATH_D3D10:
+               Con_DPrintf("FIXME D3D10 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
+               break;
+       case RENDERPATH_D3D11:
+               Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
+               break;
+       case RENDERPATH_SOFT:
+               if (glt->texnum)
+                       DPSOFTRAST_Texture_Free(glt->texnum);
+               break;
        }
 
        if (glt->inputtexels)
@@ -341,25 +378,26 @@ void R_FreeTexturePool(rtexturepool_t **rtexturepool)
 
 typedef struct glmode_s
 {
-       char *name;
+       const char *name;
        int minification, magnification;
+       DPSOFTRAST_TEXTURE_FILTER dpsoftrastfilter_mipmap, dpsoftrastfilter_nomipmap;
 }
 glmode_t;
 
 static glmode_t modes[6] =
 {
-       {"GL_NEAREST", GL_NEAREST, GL_NEAREST},
-       {"GL_LINEAR", GL_LINEAR, GL_LINEAR},
-       {"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST},
-       {"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR},
-       {"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST},
-       {"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
+       {"GL_NEAREST", GL_NEAREST, GL_NEAREST, DPSOFTRAST_TEXTURE_FILTER_NEAREST, DPSOFTRAST_TEXTURE_FILTER_NEAREST},
+       {"GL_LINEAR", GL_LINEAR, GL_LINEAR, DPSOFTRAST_TEXTURE_FILTER_LINEAR, DPSOFTRAST_TEXTURE_FILTER_LINEAR},
+       {"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST, DPSOFTRAST_TEXTURE_FILTER_NEAREST_MIPMAP_TRIANGLE, DPSOFTRAST_TEXTURE_FILTER_NEAREST},
+       {"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR, DPSOFTRAST_TEXTURE_FILTER_LINEAR_MIPMAP_TRIANGLE, DPSOFTRAST_TEXTURE_FILTER_LINEAR},
+       {"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST, DPSOFTRAST_TEXTURE_FILTER_NEAREST_MIPMAP_TRIANGLE, DPSOFTRAST_TEXTURE_FILTER_NEAREST},
+       {"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, DPSOFTRAST_TEXTURE_FILTER_LINEAR_MIPMAP_TRIANGLE, DPSOFTRAST_TEXTURE_FILTER_LINEAR}
 };
 
 #ifdef SUPPORTD3D
 typedef struct d3dmode_s
 {
-       char *name;
+       const char *name;
        int m1, m2;
 }
 d3dmode_t;
@@ -410,12 +448,16 @@ static void GL_TextureMode_f (void)
        gl_filter_mag = modes[i].magnification;
        gl_filter_force = ((Cmd_Argc() > 2) && !strcasecmp(Cmd_Argv(2), "force"));
 
+       dpsoftrast_filter_mipmap = modes[i].dpsoftrastfilter_mipmap;
+       dpsoftrast_filter_nomipmap = modes[i].dpsoftrastfilter_nomipmap;
+
        switch(vid.renderpath)
        {
        case RENDERPATH_GL11:
        case RENDERPATH_GL13:
        case RENDERPATH_GL20:
        case RENDERPATH_CGGL:
+       case RENDERPATH_GLES2:
                // change all the existing mipmap texture objects
                // FIXME: force renderer(/client/something?) restart instead?
                CHECKGLERROR
@@ -459,7 +501,7 @@ static void GL_TextureMode_f (void)
                        for (glt = pool->gltchain;glt;glt = glt->chain)
                        {
                                // only update already uploaded images
-                               if (glt->d3dtexture && (gl_filter_force || !(glt->flags & (TEXF_FORCENEAREST | TEXF_FORCELINEAR))))
+                               if (glt->d3dtexture && !glt->d3disdepthsurface && (gl_filter_force || !(glt->flags & (TEXF_FORCENEAREST | TEXF_FORCELINEAR))))
                                {
                                        if (glt->flags & TEXF_MIPMAP)
                                        {
@@ -486,6 +528,13 @@ static void GL_TextureMode_f (void)
        case RENDERPATH_D3D11:
                Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
                break;
+       case RENDERPATH_SOFT:
+               // change all the existing texture objects
+               for (pool = gltexturepoolchain;pool;pool = pool->next)
+                       for (glt = pool->gltchain;glt;glt = glt->chain)
+                               if (glt->texnum && (gl_filter_force || !(glt->flags & (TEXF_FORCENEAREST | TEXF_FORCELINEAR))))
+                                       DPSOFTRAST_Texture_Filter(glt->texnum, (glt->flags & TEXF_MIPMAP) ? dpsoftrast_filter_mipmap : dpsoftrast_filter_nomipmap);
+               break;
        }
 }
 
@@ -512,38 +561,43 @@ static void GL_Texture_CalcImageSize(int texturetype, int flags, int miplevel, i
                break;
        }
 
-       if (outwidth)
+       if (vid.support.arb_texture_non_power_of_two)
        {
-               if (vid.support.arb_texture_non_power_of_two)
-                       width2 = min(inwidth >> picmip, maxsize);
-               else
-               {
-                       for (width2 = 1;width2 < inwidth;width2 <<= 1);
-                       for (width2 >>= picmip;width2 > maxsize;width2 >>= 1);
-               }
-               *outwidth = max(1, width2);
+               width2 = min(inwidth >> picmip, maxsize);
+               height2 = min(inheight >> picmip, maxsize);
+               depth2 = min(indepth >> picmip, maxsize);
        }
-       if (outheight)
+       else
        {
-               if (vid.support.arb_texture_non_power_of_two)
-                       height2 = min(inheight >> picmip, maxsize);
-               else
-               {
-                       for (height2 = 1;height2 < inheight;height2 <<= 1);
-                       for (height2 >>= picmip;height2 > maxsize;height2 >>= 1);
-               }
-               *outheight = max(1, height2);
+               for (width2 = 1;width2 < inwidth;width2 <<= 1);
+               for (width2 >>= picmip;width2 > maxsize;width2 >>= 1);
+               for (height2 = 1;height2 < inheight;height2 <<= 1);
+               for (height2 >>= picmip;height2 > maxsize;height2 >>= 1);
+               for (depth2 = 1;depth2 < indepth;depth2 <<= 1);
+               for (depth2 >>= picmip;depth2 > maxsize;depth2 >>= 1);
        }
-       if (outdepth)
+
+       switch(vid.renderpath)
        {
-               if (vid.support.arb_texture_non_power_of_two)
-                       depth2 = min(indepth >> picmip, maxsize);
-               else
+       case RENDERPATH_GL11:
+       case RENDERPATH_GL13:
+       case RENDERPATH_GL20:
+       case RENDERPATH_CGGL:
+       case RENDERPATH_D3D10:
+       case RENDERPATH_D3D11:
+       case RENDERPATH_SOFT:
+       case RENDERPATH_GLES2:
+               break;
+       case RENDERPATH_D3D9:
+#if 0
+               // for some reason the REF rasterizer (and hence the PIX debugger) does not like small textures...
+               if (texturetype == GLTEXTURETYPE_2D)
                {
-                       for (depth2 = 1;depth2 < indepth;depth2 <<= 1);
-                       for (depth2 >>= picmip;depth2 > maxsize;depth2 >>= 1);
+                       width2 = max(width2, 2);
+                       height2 = max(height2, 2);
                }
-               *outdepth = max(1, depth2);
+#endif
+               break;
        }
 
        miplevels = 1;
@@ -553,6 +607,13 @@ static void GL_Texture_CalcImageSize(int texturetype, int flags, int miplevel, i
                while(extent >>= 1)
                        miplevels++;
        }
+
+       if (outwidth)
+               *outwidth = max(1, width2);
+       if (outheight)
+               *outheight = max(1, height2);
+       if (outdepth)
+               *outdepth = max(1, depth2);
        if (outmiplevels)
                *outmiplevels = miplevels;
 }
@@ -643,6 +704,7 @@ static void r_textures_start(void)
        case RENDERPATH_GL13:
        case RENDERPATH_GL20:
        case RENDERPATH_CGGL:
+       case RENDERPATH_GLES2:
                // LordHavoc: allow any alignment
                CHECKGLERROR
                qglPixelStorei(GL_UNPACK_ALIGNMENT, 1);CHECKGLERROR
@@ -656,6 +718,8 @@ static void r_textures_start(void)
        case RENDERPATH_D3D11:
                Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
                break;
+       case RENDERPATH_SOFT:
+               break;
        }
 
        texturemempool = Mem_AllocPool("texture management", 0, NULL);
@@ -708,10 +772,13 @@ static void r_textures_devicelost(void)
                case RENDERPATH_GL13:
                case RENDERPATH_GL20:
                case RENDERPATH_CGGL:
+               case RENDERPATH_GLES2:
                        break;
                case RENDERPATH_D3D9:
 #ifdef SUPPORTD3D
-                       if (glt->tiledepth > 1)
+                       if (glt->d3disdepthsurface)
+                               IDirect3DSurface9_Release((IDirect3DSurface9 *)glt->d3dtexture);
+                       else if (glt->tiledepth > 1)
                                IDirect3DVolumeTexture9_Release((IDirect3DVolumeTexture9 *)glt->d3dtexture);
                        else if (glt->sides == 6)
                                IDirect3DCubeTexture9_Release((IDirect3DCubeTexture9 *)glt->d3dtexture);
@@ -726,6 +793,8 @@ static void r_textures_devicelost(void)
                case RENDERPATH_D3D11:
                        Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
                        break;
+               case RENDERPATH_SOFT:
+                       break;
                }
        }
 }
@@ -746,12 +815,18 @@ static void r_textures_devicerestored(void)
                case RENDERPATH_GL13:
                case RENDERPATH_GL20:
                case RENDERPATH_CGGL:
+               case RENDERPATH_GLES2:
                        break;
                case RENDERPATH_D3D9:
 #ifdef SUPPORTD3D
                        {
                                HRESULT d3dresult;
-                               if (glt->tiledepth > 1)
+                               if (glt->d3disdepthsurface)
+                               {
+                                       if (FAILED(d3dresult = IDirect3DDevice9_CreateDepthStencilSurface(vid_d3d9dev, glt->tilewidth, glt->tileheight, (D3DFORMAT)glt->d3dformat, D3DMULTISAMPLE_NONE, 0, false, (IDirect3DSurface9 **)&glt->d3dtexture, NULL)))
+                                               Sys_Error("IDirect3DDevice9_CreateDepthStencilSurface failed!");
+                               }
+                               else if (glt->tiledepth > 1)
                                {
                                        if (FAILED(d3dresult = IDirect3DDevice9_CreateVolumeTexture(vid_d3d9dev, glt->tilewidth, glt->tileheight, glt->tiledepth, glt->miplevels, glt->d3dusage, (D3DFORMAT)glt->d3dformat, (D3DPOOL)glt->d3dpool, (IDirect3DVolumeTexture9 **)&glt->d3dtexture, NULL)))
                                                Sys_Error("IDirect3DDevice9_CreateVolumeTexture failed!");
@@ -775,6 +850,8 @@ static void r_textures_devicerestored(void)
                case RENDERPATH_D3D11:
                        Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
                        break;
+               case RENDERPATH_SOFT:
+                       break;
                }
        }
 }
@@ -807,6 +884,8 @@ void R_Textures_Init (void)
        Cvar_RegisterVariable (&gl_texturecompression_reflectmask);
        Cvar_RegisterVariable (&gl_nopartialtextureupdates);
        Cvar_RegisterVariable (&r_texture_dds_load_alphamode);
+       Cvar_RegisterVariable (&r_texture_dds_load_logfailure);
+       Cvar_RegisterVariable (&r_texture_dds_swdecode);
 
        R_RegisterModule("R_Textures", r_textures_start, r_textures_shutdown, r_textures_newmap, r_textures_devicelost, r_textures_devicerestored);
 }
@@ -847,6 +926,7 @@ void R_Textures_Frame (void)
                case RENDERPATH_GL13:
                case RENDERPATH_GL20:
                case RENDERPATH_CGGL:
+               case RENDERPATH_GLES2:
                        CHECKGLERROR
                        GL_ActiveTexture(0);
                        for (pool = gltexturepoolchain;pool;pool = pool->next)
@@ -869,6 +949,7 @@ void R_Textures_Frame (void)
                case RENDERPATH_D3D9:
                case RENDERPATH_D3D10:
                case RENDERPATH_D3D11:
+               case RENDERPATH_SOFT:
                        break;
                }
        }
@@ -976,12 +1057,24 @@ static void GL_SetupTextureParameters(int flags, textype_t textype, int texturet
        CHECKGLERROR
 }
 
-static void R_Upload(gltexture_t *glt, const unsigned char *data, int fragx, int fragy, int fragz, int fragwidth, int fragheight, int fragdepth)
+static void R_UploadPartialTexture(gltexture_t *glt, const unsigned char *data, int fragx, int fragy, int fragz, int fragwidth, int fragheight, int fragdepth)
 {
-       int i, mip, width, height, depth;
-       GLint oldbindtexnum = 0;
-       const unsigned char *prevbuffer;
-       prevbuffer = data;
+       if (data == NULL)
+               Sys_Error("R_UploadPartialTexture \"%s\": partial update with NULL pixels", glt->identifier);
+
+       if (glt->texturetype != GLTEXTURETYPE_2D)
+               Sys_Error("R_UploadPartialTexture \"%s\": partial update of type other than 2D", glt->identifier);
+
+       if (glt->textype->textype == TEXTYPE_PALETTE)
+               Sys_Error("R_UploadPartialTexture \"%s\": partial update of paletted texture", glt->identifier);
+
+       if (glt->flags & (TEXF_MIPMAP | TEXF_PICMIP))
+               Sys_Error("R_UploadPartialTexture \"%s\": partial update not supported with MIPMAP or PICMIP flags", glt->identifier);
+
+       if (glt->inputwidth != glt->tilewidth || glt->inputheight != glt->tileheight || glt->tiledepth != 1)
+               Sys_Error("R_UploadPartialTexture \"%s\": partial update not supported with stretched or special textures", glt->identifier);
+
+       // update a portion of the image
 
        switch(vid.renderpath)
        {
@@ -989,150 +1082,251 @@ static void R_Upload(gltexture_t *glt, const unsigned char *data, int fragx, int
        case RENDERPATH_GL13:
        case RENDERPATH_GL20:
        case RENDERPATH_CGGL:
-               CHECKGLERROR
-
-               // we need to restore the texture binding after finishing the upload
-               GL_ActiveTexture(0);
-               oldbindtexnum = R_Mesh_TexBound(0, gltexturetypeenums[glt->texturetype]);
-               qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
+       case RENDERPATH_GLES2:
+               {
+                       int oldbindtexnum;
+                       CHECKGLERROR
+                       // we need to restore the texture binding after finishing the upload
+                       GL_ActiveTexture(0);
+                       oldbindtexnum = R_Mesh_TexBound(0, gltexturetypeenums[glt->texturetype]);
+                       qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
+                       qglTexSubImage2D(GL_TEXTURE_2D, 0, fragx, fragy, fragwidth, fragheight, glt->glformat, glt->gltype, data);CHECKGLERROR
+                       qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
+               }
                break;
        case RENDERPATH_D3D9:
+#ifdef SUPPORTD3D
+               {
+                       RECT d3drect;
+                       D3DLOCKED_RECT d3dlockedrect;
+                       int y;
+                       memset(&d3drect, 0, sizeof(d3drect));
+                       d3drect.left = fragx;
+                       d3drect.top = fragy;
+                       d3drect.right = fragx+fragwidth;
+                       d3drect.bottom = fragy+fragheight;
+                       if (IDirect3DTexture9_LockRect((IDirect3DTexture9*)glt->d3dtexture, 0, &d3dlockedrect, &d3drect, 0) == D3D_OK && d3dlockedrect.pBits)
+                       {
+                               for (y = 0;y < fragheight;y++)
+                                       memcpy((unsigned char *)d3dlockedrect.pBits + d3dlockedrect.Pitch * y, data + fragwidth*glt->bytesperpixel * y, fragwidth*glt->bytesperpixel);
+                               IDirect3DTexture9_UnlockRect((IDirect3DTexture9*)glt->d3dtexture, 0);
+                       }
+               }
+#endif
+               break;
        case RENDERPATH_D3D10:
+               Con_DPrintf("FIXME D3D10 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
+               break;
        case RENDERPATH_D3D11:
+               Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
+               break;
+       case RENDERPATH_SOFT:
+               DPSOFTRAST_Texture_UpdatePartial(glt->texnum, 0, data, fragx, fragy, fragwidth, fragheight);
                break;
        }
+}
 
-       // these are rounded up versions of the size to do better resampling
-       if (vid.support.arb_texture_non_power_of_two || glt->texturetype == GLTEXTURETYPE_RECTANGLE)
-       {
-               width = glt->inputwidth;
-               height = glt->inputheight;
-               depth = glt->inputdepth;
-       }
-       else
-       {
-               for (width  = 1;width  < glt->inputwidth ;width  <<= 1);
-               for (height = 1;height < glt->inputheight;height <<= 1);
-               for (depth  = 1;depth  < glt->inputdepth ;depth  <<= 1);
-       }
+static void R_UploadFullTexture(gltexture_t *glt, const unsigned char *data)
+{
+       int i, mip = 0, width, height, depth;
+       GLint oldbindtexnum = 0;
+       const unsigned char *prevbuffer;
+       prevbuffer = data;
+
+       // error out if a stretch is needed on special texture types
+       if (glt->texturetype != GLTEXTURETYPE_2D && (glt->tilewidth != glt->inputwidth || glt->tileheight != glt->inputheight || glt->tiledepth != glt->inputdepth))
+               Sys_Error("R_UploadFullTexture \"%s\": stretch uploads allowed only on 2D textures\n", glt->identifier);
 
+       // when picmip or maxsize is applied, we scale up to a power of 2 multiple
+       // of the target size and then use the mipmap reduction function to get
+       // high quality supersampled results
+       for (width  = glt->tilewidth;width  < glt->inputwidth ;width  <<= 1);
+       for (height = glt->tileheight;height < glt->inputheight;height <<= 1);
+       for (depth  = glt->tiledepth;depth  < glt->inputdepth ;depth  <<= 1);
        R_MakeResizeBufferBigger(width * height * depth * glt->sides * glt->bytesperpixel);
-       R_MakeResizeBufferBigger(fragwidth * fragheight * fragdepth * glt->sides * glt->bytesperpixel);
 
        if (prevbuffer == NULL)
        {
-               memset(resizebuffer, 0, fragwidth * fragheight * fragdepth * glt->bytesperpixel);
+               width = glt->tilewidth;
+               height = glt->tileheight;
+               depth = glt->tiledepth;
+               memset(resizebuffer, 0, width * height * depth * glt->sides * glt->bytesperpixel);
                prevbuffer = resizebuffer;
        }
        else if (glt->textype->textype == TEXTYPE_PALETTE)
        {
                // promote paletted to BGRA, so we only have to worry about BGRA in the rest of this code
-               Image_Copy8bitBGRA(prevbuffer, colorconvertbuffer, fragwidth * fragheight * fragdepth * glt->sides, glt->palette);
+               Image_Copy8bitBGRA(prevbuffer, colorconvertbuffer, glt->inputwidth * glt->inputheight * glt->inputdepth * glt->sides, glt->palette);
                prevbuffer = colorconvertbuffer;
        }
 
-       // upload the image - preferring to do only complete uploads (drivers do not really like partial updates)
+       if (glt->flags & TEXF_RGBMULTIPLYBYALPHA)
+       {
+               // multiply RGB channels by A channel before uploading
+               int alpha;
+               for (i = 0;i < width*height*depth*4;i += 4)
+               {
+                       alpha = prevbuffer[i+3];
+                       colorconvertbuffer[i] = (prevbuffer[i] * alpha) >> 8;
+                       colorconvertbuffer[i+1] = (prevbuffer[i+1] * alpha) >> 8;
+                       colorconvertbuffer[i+2] = (prevbuffer[i+2] * alpha) >> 8;
+                       colorconvertbuffer[i+3] = alpha;
+               }
+               prevbuffer = colorconvertbuffer;
+       }
 
-       if ((glt->flags & (TEXF_MIPMAP | TEXF_PICMIP)) == 0 && glt->inputwidth == glt->tilewidth && glt->inputheight == glt->tileheight && glt->inputdepth == glt->tiledepth && (fragx != 0 || fragy != 0 || fragwidth != glt->tilewidth || fragheight != glt->tileheight))
+       // scale up to a power of 2 size (if appropriate)
+       if (glt->inputwidth != width || glt->inputheight != height || glt->inputdepth != depth)
        {
-               // update a portion of the image
-               if (glt->texturetype != GLTEXTURETYPE_2D)
-                       Sys_Error("R_Upload: partial update of type other than 2D");
-               switch(vid.renderpath)
+               Image_Resample32(prevbuffer, glt->inputwidth, glt->inputheight, glt->inputdepth, resizebuffer, width, height, depth, r_lerpimages.integer);
+               prevbuffer = resizebuffer;
+       }
+       // apply mipmap reduction algorithm to get down to picmip/max_size
+       while (width > glt->tilewidth || height > glt->tileheight || depth > glt->tiledepth)
+       {
+               Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, glt->tilewidth, glt->tileheight, glt->tiledepth);
+               prevbuffer = resizebuffer;
+       }
+
+       // do the appropriate upload type...
+       switch(vid.renderpath)
+       {
+       case RENDERPATH_GL11:
+       case RENDERPATH_GL13:
+       case RENDERPATH_GL20:
+       case RENDERPATH_CGGL:
+       case RENDERPATH_GLES2:
+               CHECKGLERROR
+
+               // we need to restore the texture binding after finishing the upload
+               GL_ActiveTexture(0);
+               oldbindtexnum = R_Mesh_TexBound(0, gltexturetypeenums[glt->texturetype]);
+               qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
+
+               if (qglGetCompressedTexImageARB)
                {
-               case RENDERPATH_GL11:
-               case RENDERPATH_GL13:
-               case RENDERPATH_GL20:
-               case RENDERPATH_CGGL:
-                       qglTexSubImage2D(GL_TEXTURE_2D, 0, fragx, fragy, fragwidth, fragheight, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
-                       qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
-                       break;
-               case RENDERPATH_D3D9:
-#ifdef SUPPORTD3D
+                       if (gl_texturecompression.integer >= 2)
+                               qglHint(GL_TEXTURE_COMPRESSION_HINT_ARB, GL_NICEST);
+                       else
+                               qglHint(GL_TEXTURE_COMPRESSION_HINT_ARB, GL_FASTEST);
+                       CHECKGLERROR
+               }
+               switch(glt->texturetype)
+               {
+               case GLTEXTURETYPE_2D:
+                       qglTexImage2D(GL_TEXTURE_2D, mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
+                       if (glt->flags & TEXF_MIPMAP)
                        {
-                               RECT d3drect;
-                               D3DLOCKED_RECT d3dlockedrect;
-                               int y;
-                               memset(&d3drect, 0, sizeof(d3drect));
-                               d3drect.left = fragx;
-                               d3drect.top = fragy;
-                               d3drect.right = fragx+fragwidth;
-                               d3drect.bottom = fragy+fragheight;
-                               if (IDirect3DTexture9_LockRect((IDirect3DTexture9*)glt->d3dtexture, 0, &d3dlockedrect, &d3drect, 0) == D3D_OK && d3dlockedrect.pBits)
+                               while (width > 1 || height > 1 || depth > 1)
                                {
-                                       for (y = 0;y < fragheight;y++)
-                                               memcpy((unsigned char *)d3dlockedrect.pBits + d3dlockedrect.Pitch * y, (unsigned char *)prevbuffer + fragwidth*glt->bytesperpixel * y, fragwidth*glt->bytesperpixel);
-                                       IDirect3DTexture9_UnlockRect((IDirect3DTexture9*)glt->d3dtexture, 0);
+                                       Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1);
+                                       prevbuffer = resizebuffer;
+                                       qglTexImage2D(GL_TEXTURE_2D, mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
                                }
                        }
-#endif
-                       break;
-               case RENDERPATH_D3D10:
-                       Con_DPrintf("FIXME D3D10 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
                        break;
-               case RENDERPATH_D3D11:
-                       Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
-                       break;
-               }
-       }
-       else
-       {
-               if (fragx || fragy || fragz || glt->inputwidth != fragwidth || glt->inputheight != fragheight || glt->inputdepth != fragdepth)
-                       Host_Error("R_Upload: partial update not allowed on initial upload or in combination with PICMIP or MIPMAP\n");
-
-               // cubemaps contain multiple images and thus get processed a bit differently
-               if (glt->texturetype != GLTEXTURETYPE_CUBEMAP)
-               {
-                       if (glt->inputwidth != width || glt->inputheight != height || glt->inputdepth != depth)
+               case GLTEXTURETYPE_3D:
+                       qglTexImage3D(GL_TEXTURE_3D, mip++, glt->glinternalformat, width, height, depth, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
+                       if (glt->flags & TEXF_MIPMAP)
                        {
-                               Image_Resample32(prevbuffer, glt->inputwidth, glt->inputheight, glt->inputdepth, resizebuffer, width, height, depth, r_lerpimages.integer);
-                               prevbuffer = resizebuffer;
+                               while (width > 1 || height > 1 || depth > 1)
+                               {
+                                       Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1);
+                                       prevbuffer = resizebuffer;
+                                       qglTexImage3D(GL_TEXTURE_3D, mip++, glt->glinternalformat, width, height, depth, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
+                               }
                        }
-                       // picmip/max_size
-                       while (width > glt->tilewidth || height > glt->tileheight || depth > glt->tiledepth)
+                       break;
+               case GLTEXTURETYPE_CUBEMAP:
+                       // convert and upload each side in turn,
+                       // from a continuous block of input texels
+                       texturebuffer = (unsigned char *)prevbuffer;
+                       for (i = 0;i < 6;i++)
                        {
-                               Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, glt->tilewidth, glt->tileheight, glt->tiledepth);
-                               prevbuffer = resizebuffer;
+                               prevbuffer = texturebuffer;
+                               texturebuffer += glt->inputwidth * glt->inputheight * glt->inputdepth * glt->textype->inputbytesperpixel;
+                               if (glt->inputwidth != width || glt->inputheight != height || glt->inputdepth != depth)
+                               {
+                                       Image_Resample32(prevbuffer, glt->inputwidth, glt->inputheight, glt->inputdepth, resizebuffer, width, height, depth, r_lerpimages.integer);
+                                       prevbuffer = resizebuffer;
+                               }
+                               // picmip/max_size
+                               while (width > glt->tilewidth || height > glt->tileheight || depth > glt->tiledepth)
+                               {
+                                       Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, glt->tilewidth, glt->tileheight, glt->tiledepth);
+                                       prevbuffer = resizebuffer;
+                               }
+                               mip = 0;
+                               qglTexImage2D(cubemapside[i], mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
+                               if (glt->flags & TEXF_MIPMAP)
+                               {
+                                       while (width > 1 || height > 1 || depth > 1)
+                                       {
+                                               Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1);
+                                               prevbuffer = resizebuffer;
+                                               qglTexImage2D(cubemapside[i], mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
+                                       }
+                               }
                        }
+                       break;
                }
-               mip = 0;
-               switch(vid.renderpath)
+               GL_SetupTextureParameters(glt->flags, glt->textype->textype, glt->texturetype);
+               qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
+               break;
+       case RENDERPATH_D3D9:
+#ifdef SUPPORTD3D
+               if (!(glt->flags & TEXF_RENDERTARGET))
                {
-               case RENDERPATH_GL11:
-               case RENDERPATH_GL13:
-               case RENDERPATH_GL20:
-               case RENDERPATH_CGGL:
-                       if (qglGetCompressedTexImageARB)
-                       {
-                               if (gl_texturecompression.integer >= 2)
-                                       qglHint(GL_TEXTURE_COMPRESSION_HINT_ARB, GL_NICEST);
-                               else
-                                       qglHint(GL_TEXTURE_COMPRESSION_HINT_ARB, GL_FASTEST);
-                               CHECKGLERROR
-                       }
+                       D3DLOCKED_RECT d3dlockedrect;
+                       D3DLOCKED_BOX d3dlockedbox;
                        switch(glt->texturetype)
                        {
                        case GLTEXTURETYPE_2D:
-                               qglTexImage2D(GL_TEXTURE_2D, mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
-                               if (glt->flags & TEXF_MIPMAP)
+                               if (IDirect3DTexture9_LockRect((IDirect3DTexture9*)glt->d3dtexture, mip, &d3dlockedrect, NULL, 0) == D3D_OK && d3dlockedrect.pBits)
+                               {
+                                       if (prevbuffer)
+                                               memcpy(d3dlockedrect.pBits, prevbuffer, width*height*glt->bytesperpixel);
+                                       else
+                                               memset(d3dlockedrect.pBits, 255, width*height*glt->bytesperpixel);
+                                       IDirect3DTexture9_UnlockRect((IDirect3DTexture9*)glt->d3dtexture, mip);
+                               }
+                               mip++;
+                               if ((glt->flags & TEXF_MIPMAP) && prevbuffer)
                                {
                                        while (width > 1 || height > 1 || depth > 1)
                                        {
                                                Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1);
                                                prevbuffer = resizebuffer;
-                                               qglTexImage2D(GL_TEXTURE_2D, mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
+                                               if (IDirect3DTexture9_LockRect((IDirect3DTexture9*)glt->d3dtexture, mip, &d3dlockedrect, NULL, 0) == D3D_OK && d3dlockedrect.pBits)
+                                               {
+                                                       memcpy(d3dlockedrect.pBits, prevbuffer, width*height*glt->bytesperpixel);
+                                                       IDirect3DTexture9_UnlockRect((IDirect3DTexture9*)glt->d3dtexture, mip);
+                                               }
+                                               mip++;
                                        }
                                }
                                break;
                        case GLTEXTURETYPE_3D:
-                               qglTexImage3D(GL_TEXTURE_3D, mip++, glt->glinternalformat, width, height, depth, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
+                               if (IDirect3DVolumeTexture9_LockBox((IDirect3DVolumeTexture9*)glt->d3dtexture, mip, &d3dlockedbox, NULL, 0) == D3D_OK && d3dlockedbox.pBits)
+                               {
+                                       // we are not honoring the RowPitch or SlicePitch, hopefully this works with all sizes
+                                       memcpy(d3dlockedbox.pBits, prevbuffer, width*height*depth*glt->bytesperpixel);
+                                       IDirect3DVolumeTexture9_UnlockBox((IDirect3DVolumeTexture9*)glt->d3dtexture, mip);
+                               }
+                               mip++;
                                if (glt->flags & TEXF_MIPMAP)
                                {
                                        while (width > 1 || height > 1 || depth > 1)
                                        {
                                                Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1);
                                                prevbuffer = resizebuffer;
-                                               qglTexImage3D(GL_TEXTURE_3D, mip++, glt->glinternalformat, width, height, depth, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
+                                               if (IDirect3DVolumeTexture9_LockBox((IDirect3DVolumeTexture9*)glt->d3dtexture, mip, &d3dlockedbox, NULL, 0) == D3D_OK && d3dlockedbox.pBits)
+                                               {
+                                                       // we are not honoring the RowPitch or SlicePitch, hopefully this works with all sizes
+                                                       memcpy(d3dlockedbox.pBits, prevbuffer, width*height*depth*glt->bytesperpixel);
+                                                       IDirect3DVolumeTexture9_UnlockBox((IDirect3DVolumeTexture9*)glt->d3dtexture, mip);
+                                               }
+                                               mip++;
                                        }
                                }
                                break;
@@ -1156,180 +1350,130 @@ static void R_Upload(gltexture_t *glt, const unsigned char *data, int fragx, int
                                                prevbuffer = resizebuffer;
                                        }
                                        mip = 0;
-                                       qglTexImage2D(cubemapside[i], mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
-                                       if (glt->flags & TEXF_MIPMAP)
-                                       {
-                                               while (width > 1 || height > 1 || depth > 1)
-                                               {
-                                                       Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1);
-                                                       prevbuffer = resizebuffer;
-                                                       qglTexImage2D(cubemapside[i], mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
-                                               }
-                                       }
-                               }
-                               break;
-                       case GLTEXTURETYPE_RECTANGLE:
-                               qglTexImage2D(GL_TEXTURE_RECTANGLE_ARB, mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, NULL);CHECKGLERROR
-                               break;
-                       }
-                       GL_SetupTextureParameters(glt->flags, glt->textype->textype, glt->texturetype);
-                       qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
-                       break;
-               case RENDERPATH_D3D9:
-#ifdef SUPPORTD3D
-                       if (!(glt->flags & TEXF_RENDERTARGET))
-                       {
-                               D3DLOCKED_RECT d3dlockedrect;
-                               D3DLOCKED_BOX d3dlockedbox;
-                               switch(glt->texturetype)
-                               {
-                               case GLTEXTURETYPE_2D:
-                                       if (IDirect3DTexture9_LockRect((IDirect3DTexture9*)glt->d3dtexture, mip, &d3dlockedrect, NULL, 0) == D3D_OK && d3dlockedrect.pBits)
+                                       if (IDirect3DCubeTexture9_LockRect((IDirect3DCubeTexture9*)glt->d3dtexture, (D3DCUBEMAP_FACES)i, mip, &d3dlockedrect, NULL, 0) == D3D_OK && d3dlockedrect.pBits)
                                        {
-                                               if (prevbuffer)
-                                                       memcpy(d3dlockedrect.pBits, prevbuffer, width*height*glt->bytesperpixel);
-                                               else
-                                                       memset(d3dlockedrect.pBits, 255, width*height*glt->bytesperpixel);
-                                               IDirect3DTexture9_UnlockRect((IDirect3DTexture9*)glt->d3dtexture, mip);
+                                               memcpy(d3dlockedrect.pBits, prevbuffer, width*height*glt->bytesperpixel);
+                                               IDirect3DCubeTexture9_UnlockRect((IDirect3DCubeTexture9*)glt->d3dtexture, (D3DCUBEMAP_FACES)i, mip);
                                        }
                                        mip++;
-                                       if ((glt->flags & TEXF_MIPMAP) && prevbuffer)
+                                       if (glt->flags & TEXF_MIPMAP)
                                        {
                                                while (width > 1 || height > 1 || depth > 1)
                                                {
                                                        Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1);
                                                        prevbuffer = resizebuffer;
-                                                       if (IDirect3DTexture9_LockRect((IDirect3DTexture9*)glt->d3dtexture, mip, &d3dlockedrect, NULL, 0) == D3D_OK && d3dlockedrect.pBits)
+                                                       if (IDirect3DCubeTexture9_LockRect((IDirect3DCubeTexture9*)glt->d3dtexture, (D3DCUBEMAP_FACES)i, mip, &d3dlockedrect, NULL, 0) == D3D_OK && d3dlockedrect.pBits)
                                                        {
                                                                memcpy(d3dlockedrect.pBits, prevbuffer, width*height*glt->bytesperpixel);
-                                                               IDirect3DTexture9_UnlockRect((IDirect3DTexture9*)glt->d3dtexture, mip);
+                                                               IDirect3DCubeTexture9_UnlockRect((IDirect3DCubeTexture9*)glt->d3dtexture, (D3DCUBEMAP_FACES)i, mip);
                                                        }
                                                        mip++;
                                                }
                                        }
-                                       break;
-                               case GLTEXTURETYPE_3D:
-                                       if (IDirect3DVolumeTexture9_LockBox((IDirect3DVolumeTexture9*)glt->d3dtexture, mip, &d3dlockedbox, NULL, 0) == D3D_OK && d3dlockedbox.pBits)
-                                       {
-                                               // we are not honoring the RowPitch or SlicePitch, hopefully this works with all sizes
-                                               memcpy(d3dlockedbox.pBits, prevbuffer, width*height*depth*glt->bytesperpixel);
-                                               IDirect3DVolumeTexture9_UnlockBox((IDirect3DVolumeTexture9*)glt->d3dtexture, mip);
-                                       }
-                                       mip++;
-                                       if (glt->flags & TEXF_MIPMAP)
+                               }
+                               break;
+                       }
+               }
+               glt->d3daddressw = 0;
+               if (glt->flags & TEXF_CLAMP)
+               {
+                       glt->d3daddressu = D3DTADDRESS_CLAMP;
+                       glt->d3daddressv = D3DTADDRESS_CLAMP;
+                       if (glt->tiledepth > 1)
+                               glt->d3daddressw = D3DTADDRESS_CLAMP;
+               }
+               else
+               {
+                       glt->d3daddressu = D3DTADDRESS_WRAP;
+                       glt->d3daddressv = D3DTADDRESS_WRAP;
+                       if (glt->tiledepth > 1)
+                               glt->d3daddressw = D3DTADDRESS_WRAP;
+               }
+               glt->d3dmipmaplodbias = 0;
+               glt->d3dmaxmiplevel = 0;
+               glt->d3dmaxmiplevelfilter = d3d_filter_nomip ? 0 : glt->d3dmaxmiplevel;
+               if (glt->flags & TEXF_FORCELINEAR)
+               {
+                       glt->d3dminfilter = D3DTEXF_LINEAR;
+                       glt->d3dmagfilter = D3DTEXF_LINEAR;
+                       glt->d3dmipfilter = D3DTEXF_POINT;
+               }
+               else if (glt->flags & TEXF_FORCENEAREST)
+               {
+                       glt->d3dminfilter = D3DTEXF_POINT;
+                       glt->d3dmagfilter = D3DTEXF_POINT;
+                       glt->d3dmipfilter = D3DTEXF_POINT;
+               }
+               else if (glt->flags & TEXF_MIPMAP)
+               {
+                       glt->d3dminfilter = d3d_filter_mipmin;
+                       glt->d3dmagfilter = d3d_filter_mipmag;
+                       glt->d3dmipfilter = d3d_filter_mipmix;
+               }
+               else
+               {
+                       glt->d3dminfilter = d3d_filter_flatmin;
+                       glt->d3dmagfilter = d3d_filter_flatmag;
+                       glt->d3dmipfilter = d3d_filter_flatmix;
+               }
+#endif
+               break;
+       case RENDERPATH_D3D10:
+               Con_DPrintf("FIXME D3D10 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
+               break;
+       case RENDERPATH_D3D11:
+               Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
+               break;
+       case RENDERPATH_SOFT:
+               switch(glt->texturetype)
+               {
+               case GLTEXTURETYPE_2D:
+                       DPSOFTRAST_Texture_UpdateFull(glt->texnum, prevbuffer);
+                       break;
+               case GLTEXTURETYPE_3D:
+                       DPSOFTRAST_Texture_UpdateFull(glt->texnum, prevbuffer);
+                       break;
+               case GLTEXTURETYPE_CUBEMAP:
+                       if (glt->inputwidth != width || glt->inputheight != height || glt->inputdepth != depth)
+                       {
+                               unsigned char *combinedbuffer = (unsigned char *)Mem_Alloc(tempmempool, glt->tilewidth*glt->tileheight*glt->tiledepth*glt->sides*glt->bytesperpixel);
+                               // convert and upload each side in turn,
+                               // from a continuous block of input texels
+                               // copy the results into combinedbuffer
+                               texturebuffer = (unsigned char *)prevbuffer;
+                               for (i = 0;i < 6;i++)
+                               {
+                                       prevbuffer = texturebuffer;
+                                       texturebuffer += glt->inputwidth * glt->inputheight * glt->inputdepth * glt->textype->inputbytesperpixel;
+                                       if (glt->inputwidth != width || glt->inputheight != height || glt->inputdepth != depth)
                                        {
-                                               while (width > 1 || height > 1 || depth > 1)
-                                               {
-                                                       Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1);
-                                                       prevbuffer = resizebuffer;
-                                                       if (IDirect3DVolumeTexture9_LockBox((IDirect3DVolumeTexture9*)glt->d3dtexture, mip, &d3dlockedbox, NULL, 0) == D3D_OK && d3dlockedbox.pBits)
-                                                       {
-                                                               // we are not honoring the RowPitch or SlicePitch, hopefully this works with all sizes
-                                                               memcpy(d3dlockedbox.pBits, prevbuffer, width*height*depth*glt->bytesperpixel);
-                                                               IDirect3DVolumeTexture9_UnlockBox((IDirect3DVolumeTexture9*)glt->d3dtexture, mip);
-                                                       }
-                                                       mip++;
-                                               }
+                                               Image_Resample32(prevbuffer, glt->inputwidth, glt->inputheight, glt->inputdepth, resizebuffer, width, height, depth, r_lerpimages.integer);
+                                               prevbuffer = resizebuffer;
                                        }
-                                       break;
-                               case GLTEXTURETYPE_CUBEMAP:
-                                       // convert and upload each side in turn,
-                                       // from a continuous block of input texels
-                                       texturebuffer = (unsigned char *)prevbuffer;
-                                       for (i = 0;i < 6;i++)
+                                       // picmip/max_size
+                                       while (width > glt->tilewidth || height > glt->tileheight || depth > glt->tiledepth)
                                        {
-                                               prevbuffer = texturebuffer;
-                                               texturebuffer += glt->inputwidth * glt->inputheight * glt->inputdepth * glt->textype->inputbytesperpixel;
-                                               if (glt->inputwidth != width || glt->inputheight != height || glt->inputdepth != depth)
-                                               {
-                                                       Image_Resample32(prevbuffer, glt->inputwidth, glt->inputheight, glt->inputdepth, resizebuffer, width, height, depth, r_lerpimages.integer);
-                                                       prevbuffer = resizebuffer;
-                                               }
-                                               // picmip/max_size
-                                               while (width > glt->tilewidth || height > glt->tileheight || depth > glt->tiledepth)
-                                               {
-                                                       Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, glt->tilewidth, glt->tileheight, glt->tiledepth);
-                                                       prevbuffer = resizebuffer;
-                                               }
-                                               mip = 0;
-                                               if (IDirect3DCubeTexture9_LockRect((IDirect3DCubeTexture9*)glt->d3dtexture, (D3DCUBEMAP_FACES)i, mip, &d3dlockedrect, NULL, 0) == D3D_OK && d3dlockedrect.pBits)
-                                               {
-                                                       memcpy(d3dlockedrect.pBits, prevbuffer, width*height*glt->bytesperpixel);
-                                                       IDirect3DCubeTexture9_UnlockRect((IDirect3DCubeTexture9*)glt->d3dtexture, (D3DCUBEMAP_FACES)i, mip);
-                                               }
-                                               mip++;
-                                               if (glt->flags & TEXF_MIPMAP)
-                                               {
-                                                       while (width > 1 || height > 1 || depth > 1)
-                                                       {
-                                                               Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1);
-                                                               prevbuffer = resizebuffer;
-                                                               if (IDirect3DCubeTexture9_LockRect((IDirect3DCubeTexture9*)glt->d3dtexture, (D3DCUBEMAP_FACES)i, mip, &d3dlockedrect, NULL, 0) == D3D_OK && d3dlockedrect.pBits)
-                                                               {
-                                                                       memcpy(d3dlockedrect.pBits, prevbuffer, width*height*glt->bytesperpixel);
-                                                                       IDirect3DCubeTexture9_UnlockRect((IDirect3DCubeTexture9*)glt->d3dtexture, (D3DCUBEMAP_FACES)i, mip);
-                                                               }
-                                                               mip++;
-                                                       }
-                                               }
+                                               Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, glt->tilewidth, glt->tileheight, glt->tiledepth);
+                                               prevbuffer = resizebuffer;
                                        }
-                                       break;
-                               case GLTEXTURETYPE_RECTANGLE:
-                                       Sys_Error("Direct3D does not have RECTANGLE textures\n");
-                                       break;
+                                       memcpy(combinedbuffer + i*glt->tilewidth*glt->tileheight*glt->tiledepth*glt->bytesperpixel, prevbuffer, glt->tilewidth*glt->tileheight*glt->tiledepth*glt->bytesperpixel);
                                }
-                       }
-                       glt->d3daddressw = 0;
-                       if (glt->flags & TEXF_CLAMP)
-                       {
-                               glt->d3daddressu = D3DTADDRESS_CLAMP;
-                               glt->d3daddressv = D3DTADDRESS_CLAMP;
-                               if (glt->tiledepth > 1)
-                                       glt->d3daddressw = D3DTADDRESS_CLAMP;
-                       }
-                       else
-                       {
-                               glt->d3daddressu = D3DTADDRESS_WRAP;
-                               glt->d3daddressv = D3DTADDRESS_WRAP;
-                               if (glt->tiledepth > 1)
-                                       glt->d3daddressw = D3DTADDRESS_WRAP;
-                       }
-                       glt->d3dmipmaplodbias = 0;
-                       glt->d3dmaxmiplevel = 0;
-                       glt->d3dmaxmiplevelfilter = d3d_filter_nomip ? 0 : glt->d3dmaxmiplevel;
-                       if (glt->flags & TEXF_FORCELINEAR)
-                       {
-                               glt->d3dminfilter = D3DTEXF_LINEAR;
-                               glt->d3dmagfilter = D3DTEXF_LINEAR;
-                               glt->d3dmipfilter = D3DTEXF_POINT;
-                       }
-                       else if (glt->flags & TEXF_FORCENEAREST)
-                       {
-                               glt->d3dminfilter = D3DTEXF_POINT;
-                               glt->d3dmagfilter = D3DTEXF_POINT;
-                               glt->d3dmipfilter = D3DTEXF_POINT;
-                       }
-                       else if (glt->flags & TEXF_MIPMAP)
-                       {
-                               glt->d3dminfilter = d3d_filter_mipmin;
-                               glt->d3dmagfilter = d3d_filter_mipmag;
-                               glt->d3dmipfilter = d3d_filter_mipmix;
+                               DPSOFTRAST_Texture_UpdateFull(glt->texnum, combinedbuffer);
+                               Mem_Free(combinedbuffer);
                        }
                        else
-                       {
-                               glt->d3dminfilter = d3d_filter_flatmin;
-                               glt->d3dmagfilter = d3d_filter_flatmag;
-                               glt->d3dmipfilter = d3d_filter_flatmix;
-                       }
-#endif
-                       break;
-               case RENDERPATH_D3D10:
-                       Con_DPrintf("FIXME D3D10 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
-                       break;
-               case RENDERPATH_D3D11:
-                       Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
+                               DPSOFTRAST_Texture_UpdateFull(glt->texnum, prevbuffer);
                        break;
                }
+               if (glt->flags & TEXF_FORCELINEAR)
+                       DPSOFTRAST_Texture_Filter(glt->texnum, DPSOFTRAST_TEXTURE_FILTER_LINEAR);
+               else if (glt->flags & TEXF_FORCENEAREST)
+                       DPSOFTRAST_Texture_Filter(glt->texnum, DPSOFTRAST_TEXTURE_FILTER_NEAREST);
+               else if (glt->flags & TEXF_MIPMAP)
+                       DPSOFTRAST_Texture_Filter(glt->texnum, dpsoftrast_filter_mipmap);
+               else
+                       DPSOFTRAST_Texture_Filter(glt->texnum, dpsoftrast_filter_nomipmap);
+               break;
        }
 }
 
@@ -1344,11 +1488,6 @@ static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, const char *iden
        if (cls.state == ca_dedicated)
                return NULL;
 
-       if (texturetype == GLTEXTURETYPE_RECTANGLE && !vid.support.arb_texture_rectangle)
-       {
-               Con_Printf ("R_LoadTexture: rectangle texture not supported by driver\n");
-               return NULL;
-       }
        if (texturetype == GLTEXTURETYPE_CUBEMAP && !vid.support.arb_texture_cube_map)
        {
                Con_Printf ("R_LoadTexture: cubemap texture not supported by driver\n");
@@ -1479,6 +1618,7 @@ static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, const char *iden
        case RENDERPATH_GL13:
        case RENDERPATH_GL20:
        case RENDERPATH_CGGL:
+       case RENDERPATH_GLES2:
                CHECKGLERROR
                qglGenTextures(1, (GLuint *)&glt->texnum);CHECKGLERROR
                break;
@@ -1509,7 +1649,13 @@ static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, const char *iden
                        glt->d3dformat = d3dformat;
                        glt->d3dusage = d3dusage;
                        glt->d3dpool = d3dpool;
-                       if (glt->tiledepth > 1)
+                       glt->d3disdepthsurface = textype == TEXTYPE_SHADOWMAP;
+                       if (glt->d3disdepthsurface)
+                       {
+                               if (FAILED(d3dresult = IDirect3DDevice9_CreateDepthStencilSurface(vid_d3d9dev, glt->tilewidth, glt->tileheight, (D3DFORMAT)glt->d3dformat, D3DMULTISAMPLE_NONE, 0, false, (IDirect3DSurface9 **)&glt->d3dtexture, NULL)))
+                                       Sys_Error("IDirect3DDevice9_CreateDepthStencilSurface failed!");
+                       }
+                       else if (glt->tiledepth > 1)
                        {
                                if (FAILED(d3dresult = IDirect3DDevice9_CreateVolumeTexture(vid_d3d9dev, glt->tilewidth, glt->tileheight, glt->tiledepth, glt->miplevels, glt->d3dusage, (D3DFORMAT)glt->d3dformat, (D3DPOOL)glt->d3dpool, (IDirect3DVolumeTexture9 **)&glt->d3dtexture, NULL)))
                                        Sys_Error("IDirect3DDevice9_CreateVolumeTexture failed!");
@@ -1533,9 +1679,29 @@ static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, const char *iden
        case RENDERPATH_D3D11:
                Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
                break;
+       case RENDERPATH_SOFT:
+               {
+                       int tflags = 0;
+                       switch(textype)
+                       {
+                       case TEXTYPE_PALETTE: tflags = DPSOFTRAST_TEXTURE_FORMAT_BGRA8;break;
+                       case TEXTYPE_RGBA: tflags = DPSOFTRAST_TEXTURE_FORMAT_RGBA8;break;
+                       case TEXTYPE_BGRA: tflags = DPSOFTRAST_TEXTURE_FORMAT_BGRA8;break;
+                       case TEXTYPE_COLORBUFFER: tflags = DPSOFTRAST_TEXTURE_FORMAT_BGRA8;break;
+                       case TEXTYPE_SHADOWMAP: tflags = DPSOFTRAST_TEXTURE_FORMAT_DEPTH;break;
+                       case TEXTYPE_ALPHA: tflags = DPSOFTRAST_TEXTURE_FORMAT_ALPHA8;break;
+                       default: Sys_Error("R_LoadTexture: unsupported texture type %i when picking DPSOFTRAST_TEXTURE_FLAGS", (int)textype);
+                       }
+                       if (glt->miplevels > 1) tflags |= DPSOFTRAST_TEXTURE_FLAG_MIPMAP;
+                       if (flags & TEXF_ALPHA) tflags |= DPSOFTRAST_TEXTURE_FLAG_USEALPHA;
+                       if (glt->sides == 6) tflags |= DPSOFTRAST_TEXTURE_FLAG_CUBEMAP;
+                       if (glt->flags & TEXF_CLAMP) tflags |= DPSOFTRAST_TEXTURE_FLAG_CLAMPTOEDGE;
+                       glt->texnum = DPSOFTRAST_Texture_New(tflags, glt->tilewidth, glt->tileheight, glt->tiledepth);
+               }
+               break;
        }
 
-       R_Upload(glt, data, 0, 0, 0, glt->inputwidth, glt->inputheight, glt->inputdepth);
+       R_UploadFullTexture(glt, data);
        if ((glt->flags & TEXF_ALLOWUPDATES) && gl_nopartialtextureupdates.integer)
                glt->bufferpixels = (unsigned char *)Mem_Alloc(texturemempool, glt->tilewidth*glt->tileheight*glt->tiledepth*glt->sides*glt->bytesperpixel);
 
@@ -1565,11 +1731,6 @@ rtexture_t *R_LoadTextureCubeMap(rtexturepool_t *rtexturepool, const char *ident
        return R_SetupTexture(rtexturepool, identifier, width, width, 1, 6, flags, miplevel, textype, GLTEXTURETYPE_CUBEMAP, data, palette);
 }
 
-rtexture_t *R_LoadTextureRectangle(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, const unsigned char *data, textype_t textype, int flags, int miplevel, const unsigned int *palette)
-{
-       return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, flags, miplevel, textype, GLTEXTURETYPE_RECTANGLE, data, palette);
-}
-
 static int R_ShadowMapTextureFlags(int precision, qboolean filter)
 {
        int flags = TEXF_RENDERTARGET | TEXF_CLAMP;
@@ -1582,21 +1743,11 @@ static int R_ShadowMapTextureFlags(int precision, qboolean filter)
        return flags;
 }
 
-rtexture_t *R_LoadTextureShadowMapRectangle(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int precision, qboolean filter)
-{
-       return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, R_ShadowMapTextureFlags(precision, filter), -1, TEXTYPE_SHADOWMAP, GLTEXTURETYPE_RECTANGLE, NULL, NULL);
-}
-
 rtexture_t *R_LoadTextureShadowMap2D(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int precision, qboolean filter)
 {
        return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, R_ShadowMapTextureFlags(precision, filter), -1, TEXTYPE_SHADOWMAP, GLTEXTURETYPE_2D, NULL, NULL);
 }
 
-rtexture_t *R_LoadTextureShadowMapCube(rtexturepool_t *rtexturepool, const char *identifier, int width, int precision, qboolean filter)
-{
-    return R_SetupTexture(rtexturepool, identifier, width, width, 1, 6, R_ShadowMapTextureFlags(precision, filter), -1, TEXTYPE_SHADOWMAP, GLTEXTURETYPE_CUBEMAP, NULL, NULL);
-}
-
 int R_SaveTextureDDSFile(rtexture_t *rt, const char *filename, qboolean skipuncompressed, qboolean hasalpha)
 {
        gltexture_t *glt = (gltexture_t *)rt;
@@ -1633,6 +1784,15 @@ int R_SaveTextureDDSFile(rtexture_t *rt, const char *filename, qboolean skipunco
        case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: ddsfourcc = "DXT3";bytesperblock = 16;break;
        case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: ddsfourcc = "DXT5";bytesperblock = 16;break;
        }
+       // if premultiplied alpha, say so in the DDS file
+       if(glt->flags & TEXF_RGBMULTIPLYBYALPHA)
+       {
+               switch(internalformat)
+               {
+                       case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: ddsfourcc = "DXT2";break;
+                       case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: ddsfourcc = "DXT4";break;
+               }
+       }
        if (!bytesperblock && skipuncompressed)
                return -3; // skipped
        memset(mipinfo, 0, sizeof(mipinfo));
@@ -1727,13 +1887,14 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
        gltexture_t *glt;
        gltexturepool_t *pool = (gltexturepool_t *)rtexturepool;
        textypeinfo_t *texinfo;
-       int mip, mipwidth, mipheight, mipsize;
+       int mip, mipwidth, mipheight, mipsize, mipsize_total;
        unsigned int c;
        GLint oldbindtexnum = 0;
-       const unsigned char *mippixels, *ddspixels;
+       const unsigned char *mippixels, *ddspixels, *mippixels_start;
        unsigned char *dds;
        fs_offset_t ddsfilesize;
        unsigned int ddssize;
+       qboolean force_swdecode = (r_texture_dds_swdecode.integer > 1);
 
        if (cls.state == ca_dedicated)
                return NULL;
@@ -1743,7 +1904,8 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
 
        if (!dds)
        {
-               Log_Printf("ddstexturefailures.log", "%s\n", filename);
+               if(r_texture_dds_load_logfailure.integer)
+                       Log_Printf("ddstexturefailures.log", "%s\n", filename);
                return NULL; // not found
        }
 
@@ -1812,7 +1974,13 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
                                // check alpha
                                for (i = 0;i < size;i += bytesperblock)
                                        if (ddspixels[i+0] + ddspixels[i+1] * 256 <= ddspixels[i+2] + ddspixels[i+3] * 256)
-                                               break;
+                                       {
+                                               // NOTE: this assumes sizeof(unsigned int) == 4
+                                               unsigned int data = * (unsigned int *) &(ddspixels[i+4]);
+                                               // check if data, in base 4, contains a digit 3 (DXT1: transparent pixel)
+                                               if(data & (data<<1) & 0xAAAAAAAA)//rgh
+                                                       break;
+                                       }
                                if (i < size)
                                        textype = TEXTYPE_DXT1A;
                                else
@@ -1824,8 +1992,22 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
                        }
                }
        }
-       else if (!memcmp(dds+84, "DXT3", 4))
+       else if (!memcmp(dds+84, "DXT3", 4) || !memcmp(dds+84, "DXT2", 4))
        {
+               if(!memcmp(dds+84, "DXT2", 4))
+               {
+                       if(!(flags & TEXF_RGBMULTIPLYBYALPHA))
+                       {
+                               Con_Printf("^1%s: expecting DXT3 image without premultiplied alpha, got DXT2 image with premultiplied alpha\n", filename);
+                       }
+               }
+               else
+               {
+                       if(flags & TEXF_RGBMULTIPLYBYALPHA)
+                       {
+                               Con_Printf("^1%s: expecting DXT2 image without premultiplied alpha, got DXT3 image without premultiplied alpha\n", filename);
+                       }
+               }
                textype = TEXTYPE_DXT3;
                bytesperblock = 16;
                bytesperpixel = 0;
@@ -1838,8 +2020,22 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
                }
                // we currently always assume alpha
        }
-       else if (!memcmp(dds+84, "DXT5", 4))
+       else if (!memcmp(dds+84, "DXT5", 4) || !memcmp(dds+84, "DXT4", 4))
        {
+               if(!memcmp(dds+84, "DXT4", 4))
+               {
+                       if(!(flags & TEXF_RGBMULTIPLYBYALPHA))
+                       {
+                               Con_Printf("^1%s: expecting DXT5 image without premultiplied alpha, got DXT4 image with premultiplied alpha\n", filename);
+                       }
+               }
+               else
+               {
+                       if(flags & TEXF_RGBMULTIPLYBYALPHA)
+                       {
+                               Con_Printf("^1%s: expecting DXT4 image without premultiplied alpha, got DXT5 image without premultiplied alpha\n", filename);
+                       }
+               }
                textype = TEXTYPE_DXT5;
                bytesperblock = 16;
                bytesperpixel = 0;
@@ -1859,10 +2055,106 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
                return NULL;
        }
 
+       force_swdecode = false;
+       if(bytesperblock)
+       {
+               if(vid.support.arb_texture_compression && vid.support.ext_texture_compression_s3tc)
+               {
+                       if(r_texture_dds_swdecode.integer > 1)
+                               force_swdecode = true;
+               }
+               else
+               {
+                       if(r_texture_dds_swdecode.integer < 1)
+                       {
+                               // unsupported
+                               Mem_Free(dds);
+                               return NULL;
+                       }
+                       force_swdecode = true;
+               }
+       }
+
        // return whether this texture is transparent
        if (hasalphaflag)
                *hasalphaflag = (flags & TEXF_ALPHA) != 0;
 
+       // if we SW decode, choose 2 sizes bigger
+       if(force_swdecode)
+       {
+               // this is quarter res, so do not scale down more than we have to
+               miplevel -= 2;
+
+               if(miplevel < 0)
+                       Con_DPrintf("WARNING: fake software decoding of compressed texture %s degraded quality\n", filename);
+       }
+
+       // this is where we apply gl_picmip
+       mippixels_start = ddspixels;
+       mipwidth = dds_width;
+       mipheight = dds_height;
+       while(miplevel >= 1 && dds_miplevels >= 1)
+       {
+               if (mipwidth <= 1 && mipheight <= 1)
+                       break;
+               mipsize = bytesperblock ? ((mipwidth+3)/4)*((mipheight+3)/4)*bytesperblock : mipwidth*mipheight*bytesperpixel;
+               mippixels_start += mipsize; // just skip
+               --dds_miplevels;
+               --miplevel;
+               if (mipwidth > 1)
+                       mipwidth >>= 1;
+               if (mipheight > 1)
+                       mipheight >>= 1;
+       }
+       mipsize_total = ddssize - 128 - (mippixels_start - ddspixels);
+       mipsize = bytesperblock ? ((mipwidth+3)/4)*((mipheight+3)/4)*bytesperblock : mipwidth*mipheight*bytesperpixel;
+
+       // from here on, we do not need the ddspixels and ddssize any more (apart from the statistics entry in glt)
+
+       // fake decode S3TC if needed
+       if(force_swdecode)
+       {
+               int mipsize_new = mipsize_total / bytesperblock * 4;
+               unsigned char *mipnewpixels = (unsigned char *) Mem_Alloc(tempmempool, mipsize_new);
+               unsigned char *p = mipnewpixels;
+               for (i = bytesperblock == 16 ? 8 : 0;i < (int)mipsize_total;i += bytesperblock, p += 4)
+               {
+                       c = mippixels_start[i] + 256*mippixels_start[i+1] + 65536*mippixels_start[i+2] + 16777216*mippixels_start[i+3];
+                       p[2] = (((c >> 11) & 0x1F) + ((c >> 27) & 0x1F)) * (0.5f / 31.0f * 255.0f);
+                       p[1] = (((c >>  5) & 0x3F) + ((c >> 21) & 0x3F)) * (0.5f / 63.0f * 255.0f);
+                       p[0] = (((c      ) & 0x1F) + ((c >> 16) & 0x1F)) * (0.5f / 31.0f * 255.0f);
+                       if(textype == TEXTYPE_DXT5)
+                               p[3] = (0.5 * mippixels_start[i-8] + 0.5 * mippixels_start[i-7]);
+                       else if(textype == TEXTYPE_DXT3)
+                               p[3] = (
+                                         (mippixels_start[i-8] & 0x0F)
+                                       + (mippixels_start[i-8] >> 4)
+                                       + (mippixels_start[i-7] & 0x0F)
+                                       + (mippixels_start[i-7] >> 4)
+                                       + (mippixels_start[i-6] & 0x0F)
+                                       + (mippixels_start[i-6] >> 4)
+                                       + (mippixels_start[i-5] & 0x0F)
+                                       + (mippixels_start[i-5] >> 4)
+                                      ) * (0.125f / 15.0f * 255.0f);
+                       else
+                               p[3] = 255;
+               }
+
+               textype = TEXTYPE_BGRA;
+               bytesperblock = 0;
+               bytesperpixel = 4;
+
+               // as each block becomes a pixel, we must use pixel count for this
+               mipwidth = (mipwidth + 3) / 4;
+               mipheight = (mipheight + 3) / 4;
+               mipsize = bytesperpixel * mipwidth * mipheight;
+               mippixels_start = mipnewpixels;
+               mipsize_total = mipsize_new;
+       }
+
+       // start mip counting
+       mippixels = mippixels_start;
+
        // calculate average color if requested
        if (avgcolor)
        {
@@ -1870,27 +2162,42 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
                Vector4Clear(avgcolor);
                if (bytesperblock)
                {
-                       for (i = bytesperblock == 16 ? 8 : 0;i < size;i += bytesperblock)
+                       for (i = bytesperblock == 16 ? 8 : 0;i < mipsize;i += bytesperblock)
                        {
-                               c = ddspixels[i] + 256*ddspixels[i+1] + 65536*ddspixels[i+2] + 16777216*ddspixels[i+3];
+                               c = mippixels[i] + 256*mippixels[i+1] + 65536*mippixels[i+2] + 16777216*mippixels[i+3];
                                avgcolor[0] += ((c >> 11) & 0x1F) + ((c >> 27) & 0x1F);
                                avgcolor[1] += ((c >>  5) & 0x3F) + ((c >> 21) & 0x3F);
                                avgcolor[2] += ((c      ) & 0x1F) + ((c >> 16) & 0x1F);
+                               if(textype == TEXTYPE_DXT5)
+                                       avgcolor[3] += (0.5 * mippixels[i-8] + 0.5 * mippixels[i-7]);
+                               else if(textype == TEXTYPE_DXT3)
+                                       avgcolor[3] += (
+                                                 (mippixels_start[i-8] & 0x0F)
+                                               + (mippixels_start[i-8] >> 4)
+                                               + (mippixels_start[i-7] & 0x0F)
+                                               + (mippixels_start[i-7] >> 4)
+                                               + (mippixels_start[i-6] & 0x0F)
+                                               + (mippixels_start[i-6] >> 4)
+                                               + (mippixels_start[i-5] & 0x0F)
+                                               + (mippixels_start[i-5] >> 4)
+                                              ) * (0.125f / 15.0f * 255.0f);
+                               else
+                                       avgcolor[3] += 255;
                        }
                        f = (float)bytesperblock / size;
                        avgcolor[0] *= (0.5f / 31.0f) * f;
                        avgcolor[1] *= (0.5f / 63.0f) * f;
                        avgcolor[2] *= (0.5f / 31.0f) * f;
-                       avgcolor[3] = 1; // too hard to calculate
+                       avgcolor[3] *= f;
                }
                else
                {
-                       for (i = 0;i < size;i += 4)
+                       for (i = 0;i < mipsize;i += 4)
                        {
-                               avgcolor[0] += ddspixels[i+2];
-                               avgcolor[1] += ddspixels[i+1];
-                               avgcolor[2] += ddspixels[i];
-                               avgcolor[3] += ddspixels[i+3];
+                               avgcolor[0] += mippixels[i+2];
+                               avgcolor[1] += mippixels[i+1];
+                               avgcolor[2] += mippixels[i];
+                               avgcolor[3] += mippixels[i+3];
                        }
                        f = (1.0f / 255.0f) * bytesperpixel / size;
                        avgcolor[0] *= f;
@@ -1900,24 +2207,6 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
                }
        }
 
-       // this is where we apply gl_picmip
-       mippixels = ddspixels;
-       mipwidth = dds_width;
-       mipheight = dds_height;
-       while(miplevel >= 1 && dds_miplevels >= 1)
-       {
-               if (mipwidth <= 1 && mipheight <= 1)
-                       break;
-               mipsize = bytesperblock ? ((mipwidth+3)/4)*((mipheight+3)/4)*bytesperblock : mipwidth*mipheight*bytesperpixel;
-               mippixels += mipsize; // just skip
-               --dds_miplevels;
-               --miplevel;
-               if (mipwidth > 1)
-                       mipwidth >>= 1;
-               if (mipheight > 1)
-                       mipheight >>= 1;
-       }
-
        // when not requesting mipmaps, do not load them
        if(!(flags & TEXF_MIPMAP))
                dds_miplevels = 0;
@@ -1927,14 +2216,6 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
        else
                flags &= ~TEXF_MIPMAP;
 
-       // if S3TC is not supported, there's very little we can do about it
-       if (bytesperblock && !vid.support.ext_texture_compression_s3tc)
-       {
-               Mem_Free(dds);
-               Con_Printf("^1%s: DDS file is compressed but OpenGL driver does not support S3TC\n", filename);
-               return NULL;
-       }
-
        texinfo = R_GetTexTypeInfo(textype, flags);
 
        glt = (gltexture_t *)Mem_ExpandableArray_AllocRecord(&texturearray);
@@ -1970,6 +2251,7 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
        case RENDERPATH_GL13:
        case RENDERPATH_GL20:
        case RENDERPATH_CGGL:
+       case RENDERPATH_GLES2:
                CHECKGLERROR
                GL_ActiveTexture(0);
                oldbindtexnum = R_Mesh_TexBound(0, gltexturetypeenums[glt->texturetype]);
@@ -2002,6 +2284,9 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
        case RENDERPATH_D3D11:
                Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
                break;
+       case RENDERPATH_SOFT:
+               glt->texnum = DPSOFTRAST_Texture_New(((glt->flags & TEXF_CLAMP) ? DPSOFTRAST_TEXTURE_FLAG_CLAMPTOEDGE : 0) | (dds_miplevels > 1 ? DPSOFTRAST_TEXTURE_FLAG_MIPMAP : 0), glt->tilewidth, glt->tileheight, glt->tiledepth);
+               break;
        }
 
        // upload the texture
@@ -2011,7 +2296,7 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
        for (mip = 0;mip <= dds_miplevels;mip++) // <= to include the not-counted "largest" miplevel
        {
                mipsize = bytesperblock ? ((mipwidth+3)/4)*((mipheight+3)/4)*bytesperblock : mipwidth*mipheight*bytesperpixel;
-               if (mippixels + mipsize > dds + ddssize)
+               if (mippixels + mipsize > mippixels_start + mipsize_total)
                        break;
                switch(vid.renderpath)
                {
@@ -2019,6 +2304,7 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
                case RENDERPATH_GL13:
                case RENDERPATH_GL20:
                case RENDERPATH_CGGL:
+               case RENDERPATH_GLES2:
                        if (bytesperblock)
                        {
                                qglCompressedTexImage2DARB(GL_TEXTURE_2D, mip, glt->glinternalformat, mipwidth, mipheight, 0, mipsize, mippixels);CHECKGLERROR
@@ -2047,6 +2333,14 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
                case RENDERPATH_D3D11:
                        Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
                        break;
+               case RENDERPATH_SOFT:
+                       if (bytesperblock)
+                               Con_DPrintf("FIXME SOFT %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
+                       else
+                               DPSOFTRAST_Texture_UpdateFull(glt->texnum, mippixels);
+                       // DPSOFTRAST calculates its own mipmaps
+                       mip = dds_miplevels;
+                       break;
                }
                mippixels += mipsize;
                if (mipwidth <= 1 && mipheight <= 1)
@@ -2067,6 +2361,7 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
        case RENDERPATH_GL13:
        case RENDERPATH_GL20:
        case RENDERPATH_CGGL:
+       case RENDERPATH_GLES2:
                if (dds_miplevels >= 1 && !mipcomplete)
                {
                        // need to set GL_TEXTURE_MAX_LEVEL
@@ -2115,9 +2410,21 @@ rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filen
        case RENDERPATH_D3D11:
                Con_DPrintf("FIXME D3D11 %s:%i %s\n", __FILE__, __LINE__, __FUNCTION__);
                break;
+       case RENDERPATH_SOFT:
+               if (glt->flags & TEXF_FORCELINEAR)
+                       DPSOFTRAST_Texture_Filter(glt->texnum, DPSOFTRAST_TEXTURE_FILTER_LINEAR);
+               else if (glt->flags & TEXF_FORCENEAREST)
+                       DPSOFTRAST_Texture_Filter(glt->texnum, DPSOFTRAST_TEXTURE_FILTER_NEAREST);
+               else if (glt->flags & TEXF_MIPMAP)
+                       DPSOFTRAST_Texture_Filter(glt->texnum, dpsoftrast_filter_mipmap);
+               else
+                       DPSOFTRAST_Texture_Filter(glt->texnum, dpsoftrast_filter_nomipmap);
+               break;
        }
 
        Mem_Free(dds);
+       if(force_swdecode)
+               Mem_Free((unsigned char *) mippixels_start);
        return (rtexture_t *)glt;
 }
 
@@ -2140,7 +2447,7 @@ void R_UpdateTexture(rtexture_t *rt, const unsigned char *data, int x, int y, in
                Host_Error("R_UpdateTexture: no texture supplied");
        if (!glt->texnum && !glt->d3dtexture)
        {
-               Con_Printf("R_UpdateTexture: texture %p \"%s\" in pool %p has not been uploaded yet", glt, glt->identifier, glt->pool);
+               Con_DPrintf("R_UpdateTexture: texture %p \"%s\" in pool %p has not been uploaded yet\n", (void *)glt, glt->identifier, (void *)glt->pool);
                return;
        }
        // update part of the texture
@@ -2176,8 +2483,10 @@ void R_UpdateTexture(rtexture_t *rt, const unsigned char *data, int x, int y, in
                for (j = 0;j < height;j++, output += outputskip, input += inputskip)
                        memcpy(output, input, width*bpp);
        }
+       else if (x || y || width != glt->inputwidth || height != glt->inputheight)
+               R_UploadPartialTexture(glt, data, x, y, 0, width, height, 1);
        else
-               R_Upload(glt, data, x, y, 0, width, height, 1);
+               R_UploadFullTexture(glt, data);
 }
 
 int R_RealGetTexture(rtexture_t *rt)
@@ -2191,7 +2500,7 @@ int R_RealGetTexture(rtexture_t *rt)
                if (glt->buffermodified && glt->bufferpixels)
                {
                        glt->buffermodified = false;
-                       R_Upload(glt, glt->bufferpixels, 0, 0, 0, glt->tilewidth, glt->tileheight, glt->tiledepth);
+                       R_UploadFullTexture(glt, glt->bufferpixels);
                }
                glt->dirty = false;
                return glt->texnum;
@@ -2204,7 +2513,7 @@ void R_ClearTexture (rtexture_t *rt)
 {
        gltexture_t *glt = (gltexture_t *)rt;
 
-       R_Upload( glt, NULL, 0, 0, 0, glt->tilewidth, glt->tileheight, glt->tiledepth );
+       R_UploadFullTexture(glt, NULL);
 }
 
 int R_PicmipForFlags(int flags)