workaround for absolutely empty sprites (Nehahra s_null.spr)

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@1648 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/model_sprite.c b/model_sprite.c
index 5d82993dbb79d4bdb689d227bcd3e7b16f06ee2c..d2ccfcf5ee58938ab6caa3a508314ffcb2e5b825 100644 (file)
--- a/model_sprite.c
+++ b/model_sprite.c
@@ -175,37 +175,40 @@ void Mod_Sprite_SharedSetup(long datapointer, int version, int *palette)
                        if (modelradius < x + y)
                                modelradius = x + y;
 
-                       if (groupframes > 1)
-                               sprintf (name, "%s_%i_%i", tempname, i, j);
-                       else
-                               sprintf (name, "%s_%i", tempname, i);
-                       loadmodel->sprdata_frames[realframes].texture = loadtextureimagewithmask(loadmodel->texturepool, name, 0, 0, false, r_mipsprites.integer, true);
-                       loadmodel->sprdata_frames[realframes].fogtexture = image_masktex;
-
-                       if (!loadmodel->sprdata_frames[realframes].texture)
+                       if (width > 0 && height > 0)
                        {
-                               pixbuf = Mem_Alloc(tempmempool, width*height*4);
-                               if (version == SPRITE32_VERSION)
-                                       memcpy(pixbuf, (qbyte *)datapointer, width*height*4);
-                               else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
-                                       Image_Copy8bitRGBA((qbyte *)datapointer, pixbuf, width*height, palette);
-
-                               loadmodel->sprdata_frames[realframes].texture = R_LoadTexture (loadmodel->texturepool, name, width, height, pixbuf, TEXTYPE_RGBA, TEXF_ALPHA | (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_PRECACHE);
-
-                               // make fog version (just alpha)
-                               for (k = 0;k < width*height;k++)
-                               {
-                                       pixbuf[k*4+0] = 255;
-                                       pixbuf[k*4+1] = 255;
-                                       pixbuf[k*4+2] = 255;
-                               }
                                if (groupframes > 1)
-                                       sprintf (name, "%s_%i_%ifog", tempname, i, j);
+                                       sprintf (name, "%s_%i_%i", tempname, i, j);
                                else
-                                       sprintf (name, "%s_%ifog", tempname, i);
-                               loadmodel->sprdata_frames[realframes].fogtexture = R_LoadTexture (loadmodel->texturepool, name, width, height, pixbuf, TEXTYPE_RGBA, TEXF_ALPHA | (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_PRECACHE);
+                                       sprintf (name, "%s_%i", tempname, i);
+                               loadmodel->sprdata_frames[realframes].texture = loadtextureimagewithmask(loadmodel->texturepool, name, 0, 0, false, r_mipsprites.integer, true);
+                               loadmodel->sprdata_frames[realframes].fogtexture = image_masktex;
 
-                               Mem_Free(pixbuf);
+                               if (!loadmodel->sprdata_frames[realframes].texture)
+                               {
+                                       pixbuf = Mem_Alloc(tempmempool, width*height*4);
+                                       if (version == SPRITE32_VERSION)
+                                               memcpy(pixbuf, (qbyte *)datapointer, width*height*4);
+                                       else //if (version == SPRITE_VERSION || version == SPRITEHL_VERSION)
+                                               Image_Copy8bitRGBA((qbyte *)datapointer, pixbuf, width*height, palette);
+
+                                       loadmodel->sprdata_frames[realframes].texture = R_LoadTexture (loadmodel->texturepool, name, width, height, pixbuf, TEXTYPE_RGBA, TEXF_ALPHA | (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_PRECACHE);
+
+                                       // make fog version (just alpha)
+                                       for (k = 0;k < width*height;k++)
+                                       {
+                                               pixbuf[k*4+0] = 255;
+                                               pixbuf[k*4+1] = 255;
+                                               pixbuf[k*4+2] = 255;
+                                       }
+                                       if (groupframes > 1)
+                                               sprintf (name, "%s_%i_%ifog", tempname, i, j);
+                                       else
+                                               sprintf (name, "%s_%ifog", tempname, i);
+                                       loadmodel->sprdata_frames[realframes].fogtexture = R_LoadTexture (loadmodel->texturepool, name, width, height, pixbuf, TEXTYPE_RGBA, TEXF_ALPHA | (r_mipsprites.integer ? TEXF_MIPMAP : 0) | TEXF_PRECACHE);
+
+                                       Mem_Free(pixbuf);
+                               }
                        }
 
                        if (version == SPRITE32_VERSION)