d3d9: Don't assert for shaders with the wrong vtbl.

dlls/d3d9/shader.c

@@ -167,7 +167,8 @@ struct d3d9_vertexshader *unsafe_impl_from_IDirect3DVertexShader9(IDirect3DVerte
 {
     if (!iface)
         return NULL;
-    assert(iface->lpVtbl == &d3d9_vertexshader_vtbl);
+    if (iface->lpVtbl != &d3d9_vertexshader_vtbl)
+        WARN("Vertex shader %p with the wrong vtbl %p\n", iface, iface->lpVtbl);
 
     return impl_from_IDirect3DVertexShader9(iface);
 }
@@ -317,7 +318,8 @@ struct d3d9_pixelshader *unsafe_impl_from_IDirect3DPixelShader9(IDirect3DPixelSh
 {
     if (!iface)
         return NULL;
-    assert(iface->lpVtbl == &d3d9_pixelshader_vtbl);
+    if (iface->lpVtbl != &d3d9_pixelshader_vtbl)
+        WARN("Pixel shader %p with the wrong vtbl %p\n", iface, iface->lpVtbl);
 
     return impl_from_IDirect3DPixelShader9(iface);
 }

dlls/d3d9/tests/device.c

@@ -5518,6 +5518,7 @@ static void test_get_set_vertex_shader(void)
 {
     IDirect3DVertexShader9 *current_shader = NULL;
     IDirect3DVertexShader9 *shader = NULL;
+    const IDirect3DVertexShader9Vtbl *shader_vtbl;
     IDirect3DDevice9 *device;
     ULONG refcount, i;
     IDirect3D9 *d3d;
@@ -5568,6 +5569,16 @@ static void test_get_set_vertex_shader(void)
     ok(current_shader == shader, "Got unexpected shader %p, expected %p.\n", current_shader, shader);
     IDirect3DVertexShader9_Release(current_shader);
 
+    /* SetVertexShader() with a bogus shader vtbl */
+    shader_vtbl = shader->lpVtbl;
+    shader->lpVtbl = (IDirect3DVertexShader9Vtbl *)0xdeadbeef;
+    hr = IDirect3DDevice9_SetVertexShader(device, shader);
+    ok(SUCCEEDED(hr), "Failed to set vertex shader, hr %#x.\n", hr);
+    shader->lpVtbl = NULL;
+    hr = IDirect3DDevice9_SetVertexShader(device, shader);
+    ok(SUCCEEDED(hr), "Failed to set vertex shader, hr %#x.\n", hr);
+    shader->lpVtbl = shader_vtbl;
+
     IDirect3DVertexShader9_Release(shader);
     refcount = IDirect3DDevice9_Release(device);
     ok(!refcount, "Device has %u references left.\n", refcount);
@@ -5640,6 +5651,7 @@ static void test_get_set_pixel_shader(void)
 {
     IDirect3DPixelShader9 *current_shader = NULL;
     IDirect3DPixelShader9 *shader = NULL;
+    const IDirect3DPixelShader9Vtbl *shader_vtbl;
     IDirect3DDevice9 *device;
     ULONG refcount, i;
     IDirect3D9 *d3d;
@@ -5690,6 +5702,16 @@ static void test_get_set_pixel_shader(void)
     ok(current_shader == shader, "Got unexpected shader %p, expected %p.\n", current_shader, shader);
     IDirect3DPixelShader9_Release(current_shader);
 
+    /* SetPixelShader() with a bogus shader vtbl */
+    shader_vtbl = shader->lpVtbl;
+    shader->lpVtbl = (IDirect3DPixelShader9Vtbl *)0xdeadbeef;
+    hr = IDirect3DDevice9_SetPixelShader(device, shader);
+    ok(SUCCEEDED(hr), "Failed to set pixel shader, hr %#x.\n", hr);
+    shader->lpVtbl = NULL;
+    hr = IDirect3DDevice9_SetPixelShader(device, shader);
+    ok(SUCCEEDED(hr), "Failed to set pixel shader, hr %#x.\n", hr);
+    shader->lpVtbl = shader_vtbl;
+
     IDirect3DPixelShader9_Release(shader);
     refcount = IDirect3DDevice9_Release(device);
     ok(!refcount, "Device has %u references left.\n", refcount);