Module: Mesa Branch: master Commit: 3c4c266f25e93ee5578f5c52fcba5f550ef59d72 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=3c4c266f25e93ee5578f5c52fcba5f550ef59d72
Author: Tiziano Bacocco <[email protected]> Date: Sun Jan 25 12:15:39 2015 +0100 st/nine: Change x86 FPU Control word on device creation as on wined3d and windows Signed-off-by: Tiziano Bacocco <[email protected]> --- 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 78e148b..96061e0 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 */ _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
