Add DDS_LOADER_IGNORE_MIPS flag to DDSTextureLoader (#270)

Inc/DDSTextureLoader.h

@@ -57,6 +57,7 @@ namespace DirectX
             DDS_LOADER_IGNORE_SRGB = 0x2,
             DDS_LOADER_MIP_AUTOGEN = 0x8,
             DDS_LOADER_MIP_RESERVE = 0x10,
+            DDS_LOADER_IGNORE_MIPS = 0x20,
         };
     }
 

Src/DDSTextureLoader.cpp

@@ -299,7 +299,7 @@ namespace
         bool isCubeMap = false;
 
         size_t mipCount = header->mipMapCount;
-        if (0 == mipCount)
+        if ((0 == mipCount) || (loadFlags & DDS_LOADER_IGNORE_MIPS))
         {
             mipCount = 1;
         }