Józef Kucia : d3d11: Make extracting input signature more robust.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 0362b418fcda520a724ab888c65b4d432547502a
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=0362b418fcda520a724ab888c6...

Author: Józef Kucia <jkucia(a)codeweavers.com>
Date:   Wed Mar 22 09:40:55 2017 +0100

d3d11: Make extracting input signature more robust.

Signed-off-by: Józef Kucia <jkucia(a)codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/d3d11/inputlayout.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/dlls/d3d11/inputlayout.c b/dlls/d3d11/inputlayout.c
index 620e663..3d7135a 100644
--- a/dlls/d3d11/inputlayout.c
+++ b/dlls/d3d11/inputlayout.c
@@ -31,6 +31,11 @@ static HRESULT isgn_handler(const char *data, DWORD data_size, DWORD tag, void *
     if (tag != TAG_ISGN)
         return S_OK;
 
+    if (is->elements)
+    {
+        FIXME("Multiple input signatures.\n");
+        shader_free_signature(is);
+    }
     return shader_parse_signature(data, data_size, is);
 }
 
@@ -42,6 +47,7 @@ static HRESULT d3d11_input_layout_to_wined3d_declaration(const D3D11_INPUT_ELEME
     unsigned int i;
     HRESULT hr;
 
+    memset(&is, 0, sizeof(is));
     if (FAILED(hr = parse_dxbc(shader_byte_code, shader_byte_code_length, isgn_handler, &is)))
     {
         ERR("Failed to parse input signature.\n");