On 3/22/19 17:25, Paul Gofman wrote:
On 3/22/19 16:37, Chip Davis wrote:
March 22, 2019 2:49 AM, "Michael Stefaniuc" mstefani@winehq.org wrote:
@@ -6162,7 +6164,7 @@ static HRESULT d3dx9_effect_init(struct d3dx_effect *effect, struct IDirect3DDev if (pool) { pool->lpVtbl->AddRef(pool); - effect->pool = impl_from_ID3DXEffectPool(pool); + effect->pool = unsafe_impl_from_ID3DXEffectPool(pool); }
Now you are leaking 'pool' in case it's not one of ours.
Chip
This can't really work if the pool is not one of ours. Pool does not have a public interface to work with from the effect's side. We don't have any tests showing what native d3dx9 will do in such a case: crash (I would put my bet on this before testing), return an error or act if no pool is provided, or even use the pool pointer just like a hash value and work fine with any object claimed to be a pool??. IMO unless we want to add some tests for this case having NULL from unsafe_impl_from_ID3DXEffectPool() deserves a FIXME at the first place. Is silently acting as if there is no pool better than crashing or leaking something pretending to be a pool object, unless we are sure this is a right thing to do?
FWIW I just made a quick test setting pool->lpVtbl to NULL in pool before using this pool in D3DXCreateEffect, and native d3dx9_36.dll crashes on read access to address 0x4, just the same way as builtin currently does.