rtexture_t *R_LoadTextureDDSFile(rtexturepool_t *rtexturepool, const char *filename, int flags, qboolean *hasalphaflag, float *avgcolor, int miplevel);
// saves a texture to a DDS file
-int R_SaveTextureDDSFile(rtexture_t *rt, const char *filename, qboolean skipuncompressed);
+int R_SaveTextureDDSFile(rtexture_t *rt, const char *filename, qboolean skipuncompressed, qboolean hasalpha);
// free a texture
void R_FreeTexture(rtexture_t *rt);