/*****************************************************************************
* IDirect3DVertexBuffer7::Lock
*
* Locks the vertex buffer and returns a pointer to the vertex data
* Locking vertex buffers is similar to locking surfaces, because Windows
* uses surfaces to store vertex data internally (According to the DX sdk)
*
* Params:
* Flags: Locking flags. Relevant here are DDLOCK_READONLY, DDLOCK_WRITEONLY,
* DDLOCK_DISCARDCONTENTS and DDLOCK_NOOVERWRITE.
* Data: Returns a pointer to the vertex data
* Size: Returns the size of the buffer if not NULL
*
* Returns:
* D3D_OK on success
* DDERR_INVALIDPARAMS if Data is NULL
* D3DERR_VERTEXBUFFEROPTIMIZED if called on an optimized buffer(WineD3D)
*
*****************************************************************************/
static HRESULT WINAPI
IDirect3DVertexBufferImpl_Lock(IDirect3DVertexBuffer7 *iface,
DWORD Flags,
void **Data,
DWORD *Size)
{
ICOM_THIS_FROM(IDirect3DVertexBufferImpl, IDirect3DVertexBuffer7, iface);
WINED3DVERTEXBUFFER_DESC Desc;
HRESULT hr;
TRACE("(%p)->(%08x,%p,%p)\n", This, Flags, Data, Size);
EnterCriticalSection(&ddraw_cs);
if(Size)
{
/* Get the size, for returning it, and for locking */
hr = IWineD3DVertexBuffer_GetDesc(This->wineD3DVertexBuffer,
&Desc);
if(hr != D3D_OK)
{
ERR("(%p) IWineD3DVertexBuffer::GetDesc failed with hr=%08x\n", This, hr);
LeaveCriticalSection(&ddraw_cs);
return hr;
}
*Size = Desc.Size;
}
hr = IWineD3DVertexBuffer_Lock(This->wineD3DVertexBuffer,
0 /* OffsetToLock */,
0 /* SizeToLock, 0 == Full lock */,
(BYTE **) Data,
Flags);
LeaveCriticalSection(&ddraw_cs);
return hr;
}
/* IDirect3DVertexBuffer9 Interface follow: */
static HRESULT WINAPI IDirect3DVertexBuffer9Impl_Lock(LPDIRECT3DVERTEXBUFFER9 iface, UINT OffsetToLock, UINT SizeToLock, void** ppbData, DWORD Flags) {
IDirect3DVertexBuffer9Impl *This = (IDirect3DVertexBuffer9Impl *)iface;
TRACE("(%p) Relay\n", This);
return IWineD3DVertexBuffer_Lock(This->wineD3DVertexBuffer, OffsetToLock, SizeToLock, (BYTE **)ppbData, Flags);
}
