d3d9: Partial implementation of IDirect3DSwapChain9Ex

[Stefan Dösinger]

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Hi,

Am 2013-08-30 10:19, schrieb Michael Müller:
> This patch implements the IDirect3DSwapChain9Ex interface as an 
> extension of IDirect3DSwapChain9 and thus fixes bug 34252 -
> "Silverlight accelerated graphics cause a D3D critical section
> lockup" since Silverlight does no longer try to create a Direct3D
> context in an endless loop. The functions
> d3d9_swapchain_GetLastPresentCount and 
> d3d9_swapchain_GetPresentStatistics are just stubs so far.
Good work on finding out what causes that bug!

> -    if (IsEqualGUID(riid, &IID_IDirect3DSwapChain9) +    if
> (IsEqualGUID(riid, &IID_IDirect3DSwapChain9) || IsEqualGUID(riid,
> &IID_IDirect3DSwapChain9Ex) || IsEqualGUID(riid, &IID_IUnknown))
For IDirect3D9Ex and IDirect3DDevice9Ex, the Ex versions are only
available if IDirect3D9 was created with the extended method. I
suspect swapchains are the same. Please write some tests for this.

> +    TRACE("iface %p, pLastPresentCount %p.\n", iface,
pLastPresentCount);
> +    WARN("not implemented.\n");
If a function is not implemented we write a FIXME, e.g.

FIXME("iface %p, pLastPresentCount %p, stub!\n", iface,
pLastPresentCount);

If this causes too much spam on the console, you can use a static
variable to print it just once.

> +    if (SUCCEEDED(hr)) +    { +        if(pMode){
Please use a code style that is consistent with the rest of the file.
Tbh the existing files aren't as consistent as we'd like. The general
rule is a space between if and (, and { in newlines. 4 spaces intendation.

If there's a one-line statement in an if, put that statement in a new
line and don't write curly brackets. My personal opinion, and the
style I use, is to use brackets for both branches of an if-else if one
of those branches has more than one line.

> - * IDirect3DSwapChain9 interface + * IDirect3DSwapChain9(Ex)
> interface */ #define INTERFACE IDirect3DSwapChain9 
> DECLARE_INTERFACE_(IDirect3DSwapChain9,IUnknown)
You have to create a new interface declaration named
IDirect3DSwapChain9Ex with all the methods and the invocation macros.
The header change should go in a separate patch. The d3d9 code should
be changed to always use IDirect3D9Swapchain9Ex, like it does for
device and direct3d.

Thanks for your work!

Stefan

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