[D3D9] fix for SetFVF memleak [2nd try+patch]

[Ivan Gyurdiev]

H. Verbeet wrote:
> On 14/10/06, Ivan Gyurdiev <ivg231 at gmail.com> wrote:
>> Ivan Gyurdiev wrote:
>> >
>> Based on further tests, I don't believe this patch is correct.. but it
>> will fix the memory leak. I'm still unsure what kind of insanity the
>> native API is doing internally - in process of figuring that out. When
>> adding this code, I spent a lot of time testing conversion between the
>> fvf and decl, and that has been shown to be correct - but management of
>> the decl afterwards seems rather wrong to me now, and that it needs
>> additional tests.
>>
>> Tests Show: Refcount of converted decl is 1 after GetVertexDeclaration()
>> Tests Show: Refcount of converted decl *remains* 1 over a SetFVF call
>> Tests Show: Refcount of converted decl *remains* 1 over a
>> SetVertexDeclaration(NULL) call
>>
> That's what happens with regular declarations as well, see
> test_get_set_vertex_declaration() in the d3d9 vertexdeclaration tests.
> Calling SetVertexDeclaration() doesn't change the refcount, but
> calling GetVertexDeclaration does (however,  note that wined3d
> internally does change refcounts).
Exactly... so why is the refcount 1 *after* GetVertexDeclaration.
>
> What does GetVertexDeclaration() do for the generated decl?
I don't think it increases the refcount like it does normally.
>
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