Can you use the fe* class of functions for this? Not entirely sure
what this is setting, but you should be able to do it with
fegetenv/fesetenv, or the more specialized functions.
On Fri, Apr 24, 2015 at 4:09 PM, Axel Davy <axel.d...@ens.fr> wrote:
> From: Tiziano Bacocco <tizb...@gmail.com>
>
> Signed-off-by: Tiziano Bacocco <tizb...@gmail.com>
> ---
> src/gallium/state_trackers/nine/device9.c | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/src/gallium/state_trackers/nine/device9.c
> b/src/gallium/state_trackers/nine/device9.c
> index 1a776a7..4ef02bb 100644
> --- a/src/gallium/state_trackers/nine/device9.c
> +++ b/src/gallium/state_trackers/nine/device9.c
> @@ -53,6 +53,18 @@
>
> #define DBG_CHANNEL DBG_DEVICE
>
> +static void nine_setup_fpu(void)
> +{
> +#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
> + WORD cw;
> + __asm__ volatile ("fnstcw %0" : "=m" (cw));
> + cw = (cw & ~0xf3f) | 0x3f;
> + __asm__ volatile ("fldcw %0" : : "m" (cw));
> +#else
> + WARN_ONCE("FPU setup not supported on non-x86 platforms\n");
> +#endif
> +}
> +
> static void
> NineDevice9_SetDefaultState( struct NineDevice9 *This, boolean is_reset )
> {
> @@ -168,6 +180,9 @@ NineDevice9_ctor( struct NineDevice9 *This,
> IDirect3D9_AddRef(This->d3d9);
> ID3DPresentGroup_AddRef(This->present);
>
> + if (!(This->params.BehaviorFlags & D3DCREATE_FPU_PRESERVE))
> + nine_setup_fpu();
> +
> This->pipe = This->screen->context_create(This->screen, NULL);
> if (!This->pipe) { return E_OUTOFMEMORY; } /* guess */
>
> --
> 2.1.0
>
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