[Bug 12652] Rainbow six Vegas 2 fails to launch (number of multisample buffers > 8 causes out-of-bounds crash)

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=12652

--- Comment #41 from Henri Verbeet <hverbeet at gmail.com> ---
(In reply to comment #39)
> In my case Wine's D3D reports up to 16x/32x to the game engine, depending on
> chosen fb config.
> 
> --- snip ---
> ...
> 0032:trace:d3d:wined3d_init Initializing adapters.
> 0032:trace:d3d:wined3d_adapter_init adapter 0x1d9448, ordinal 0.
> 0032:trace:d3d:wined3d_adapter_init Allocated LUID 00000000:00000400 for
> adapter 0x1d9448.
> 0032:trace:d3d:wined3d_caps_gl_ctx_create getting context...
> 0032:trace:d3d:wined3d_adapter_init_gl_caps adapter 0x1d9448.
> 0032:trace:d3d:wined3d_adapter_init_gl_caps GL_RENDERER: "GeForce GT
> 425M/PCIe/SSE2".
> 0032:trace:d3d:wined3d_adapter_init_gl_caps GL_VENDOR: "NVIDIA Corporation".
> 0032:trace:d3d:wined3d_adapter_init_gl_caps GL_VERSION: "4.2.0 NVIDIA
> 304.116".
> 0032:trace:d3d:wined3d_parse_gl_version Found OpenGL version 4.2. 
> ...
> 0032:trace:d3d:wined3d_adapter_init_fb_cfgs iPixelFormat=148,
> iPixelType=0x202b, doubleBuffer=0, RGBA=8/8/8/8, depth=24, stencil=8,
> samples=16, windowDrawable=1
> 0032:trace:d3d:wined3d_adapter_init_fb_cfgs iPixelFormat=149,
> iPixelType=0x202b, doubleBuffer=1, RGBA=8/8/8/0, depth=24, stencil=0,
> samples=32, windowDrawable=1
> ...
> --- snip ---
That doesn't sound quite right, the fb config sample count is only used in
context_choose_pixel_format() for selecting an fb config, it's never passed to
the application. We do pass the GL_MAX_SAMPLES limit to the application in
wined3d_check_device_multisample_type(), and that one could indeed be larger
than 8 on current GPUs.

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