D3D9: Add a test for SetVertexDeclaration / GetVertexDeclaration refcounts

[H. Verbeet]

Test the behaviour of Get & Set functions for vertex declarations wrt reference
counts. Verified on win2k, DirectX 9.0c.

Changelog:
 - Add a test for SetVertexDeclaration / GetVertexDeclaration refcounts.
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c71e9faf7ff85e3572981a81ef676af021a422e8
diff --git a/dlls/d3d9/tests/Makefile.in b/dlls/d3d9/tests/Makefile.in
index ab026e0..d27d091 100644
--- a/dlls/d3d9/tests/Makefile.in
+++ b/dlls/d3d9/tests/Makefile.in
@@ -7,7 +7,8 @@ IMPORTS   = user32 kernel32
 
 CTESTS = \
 	shader.c \
-	stateblock.c
+	stateblock.c \
+	vertexdeclaration.c
 
 @MAKE_TEST_RULES@
 
diff --git a/dlls/d3d9/tests/vertexdeclaration.c b/dlls/d3d9/tests/vertexdeclaration.c
new file mode 100644
index 0000000..5cd7c5b
--- /dev/null
+++ b/dlls/d3d9/tests/vertexdeclaration.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2005 Henri Verbeet
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#define COBJMACROS
+#include <d3d9.h>
+#include "wine/test.h"
+
+static IDirect3DDevice9 *init_d3d9(void)
+{
+    IDirect3D9 * (__stdcall * d3d9_create)(UINT SDKVersion) = 0;
+    HMODULE d3d9_handle = 0;
+    IDirect3D9 *d3d9_ptr = 0;
+    IDirect3DDevice9 *device_ptr = 0;
+    D3DPRESENT_PARAMETERS present_parameters;
+    HRESULT hres;
+
+    d3d9_handle = LoadLibrary("d3d9");
+    ok(d3d9_handle != NULL, "Failed to load d3d9.\n");
+    if (!d3d9_handle) return NULL;
+
+    d3d9_create = (void *)GetProcAddress(d3d9_handle, "Direct3DCreate9");
+    ok(d3d9_create != NULL, "Failed to get address of Direct3DCreate9\n");
+    if (!d3d9_create) return NULL;
+    
+    d3d9_ptr = d3d9_create(D3D_SDK_VERSION);
+    ok(d3d9_ptr != NULL, "Failed to create IDirect3D9 object\n");
+    if (!d3d9_ptr) return NULL;
+
+    ZeroMemory(&present_parameters, sizeof(present_parameters));
+    present_parameters.Windowed = TRUE;
+    present_parameters.hDeviceWindow = GetDesktopWindow();
+    present_parameters.SwapEffect = D3DSWAPEFFECT_DISCARD;
+
+    hres = IDirect3D9_CreateDevice(d3d9_ptr, D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, NULL, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &present_parameters, &device_ptr);
+    ok(hres == D3D_OK, "IDirect3D_CreateDevice returned: 0x%lx\n", hres);
+
+    return device_ptr;
+}
+
+static int get_refcount(IUnknown *object)
+{
+    IUnknown_AddRef(object);
+    return IUnknown_Release(object);
+}
+
+static void test_get_set_vertex_declaration(IDirect3DDevice9 *device_ptr)
+{
+    static D3DVERTEXELEMENT9 simple_decl[] = {
+        { 0, 0, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_POSITION, 0 },
+        D3DDECL_END()};
+    
+    IDirect3DVertexDeclaration9 *decl_ptr = 0;
+    IDirect3DVertexDeclaration9 *current_decl_ptr = 0;
+    HRESULT hret = 0;
+    int decl_refcount = 0;
+    int i = 0;
+    
+    hret = IDirect3DDevice9_CreateVertexDeclaration(device_ptr, simple_decl, &decl_ptr);
+    ok(hret == D3D_OK && decl_ptr != NULL, "CreateVertexDeclaration returned: hret 0x%lx, decl_ptr %p. "
+        "Expected hret 0x%lx, decl_ptr != %p. Aborting.\n", hret, decl_ptr, D3D_OK, NULL);
+    if (hret != D3D_OK || decl_ptr == NULL) return;
+    
+    /* SetVertexDeclaration should not touch the declaration's refcount. */
+    i = get_refcount((IUnknown *)decl_ptr);
+    hret = IDirect3DDevice9_SetVertexDeclaration(device_ptr, decl_ptr);
+    decl_refcount = get_refcount((IUnknown *)decl_ptr);
+    ok(hret == D3D_OK && decl_refcount == i, "SetVertexDeclaration returned: hret 0x%lx, refcount %d. "
+        "Expected hret 0x%lx, refcount %d.\n", hret, decl_refcount, D3D_OK, i);
+    
+    /* GetVertexDeclaration should increase the declaration's refcount by one. */
+    i = decl_refcount+1;
+    hret = IDirect3DDevice9_GetVertexDeclaration(device_ptr, &current_decl_ptr);
+    decl_refcount = get_refcount((IUnknown *)decl_ptr);
+    ok(hret == D3D_OK && decl_refcount == i && current_decl_ptr == decl_ptr, 
+        "GetVertexDeclaration returned: hret 0x%lx, current_decl_ptr %p refcount %d. "
+        "Expected hret 0x%lx, current_decl_ptr %p, refcount %d.\n", hret, current_decl_ptr, decl_refcount, D3D_OK, decl_ptr, i);
+}
+
+START_TEST(vertexdeclaration)
+{
+    IDirect3DDevice9 *device_ptr = init_d3d9();
+    if (!device_ptr) return;
+    
+    test_get_set_vertex_declaration(device_ptr);
+}