mesa/texstore: Don't use the _mesa_swizzle_and_convert if we need transfer ops

The _mesa_swizzle_and_convert path can't do transfer ops, so we should bail
if they're needed.

Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

src/mesa/main/texstore.c

@@ -1498,6 +1498,9 @@ texstore_swizzle(TEXSTORE_PARAMS)
    if (srcFormat == GL_COLOR_INDEX)
       return GL_FALSE;
 
+   if (_mesa_texstore_needs_transfer_ops(ctx, baseInternalFormat, dstFormat))
+      return GL_FALSE;
+
    switch (srcType) {
    case GL_FLOAT:
    case GL_UNSIGNED_BYTE: