diff options
| author | Tiziano Bacocco <[email protected]> | 2015-01-25 12:15:39 +0100 |
|---|---|---|
| committer | Axel Davy <[email protected]> | 2015-04-29 08:28:10 +0200 |
| commit | 31bb4cd5c6e3d696b2f240c270a257abfcd8848f (patch) | |
| tree | 7816671f6a54d7023be80207264c8eb511eca2ee /src/gallium/state_trackers | |
| parent | e7b1a1e57cdfd8d019ba0ff4cdc2c7239066869f (diff) | |
st/nine: Change x86 FPU Control word on device creation
As on wined3d and windows, when D3DCREATE_FPU_PRESERVE is not
specified, change the fpu control word to all exceptions masked,
single precision, round to nearest.
Signed-off-by: Axel Davy <[email protected]>
Signed-off-by: Tiziano Bacocco <[email protected]>
Diffstat (limited to 'src/gallium/state_trackers')
| -rw-r--r-- | src/gallium/state_trackers/nine/device9.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/nine/device9.c b/src/gallium/state_trackers/nine/device9.c index 1a776a777ca..0bd17177497 100644 --- a/src/gallium/state_trackers/nine/device9.c +++ b/src/gallium/state_trackers/nine/device9.c @@ -41,6 +41,7 @@ #include "pipe/p_screen.h" #include "pipe/p_context.h" +#include "pipe/p_config.h" #include "util/u_math.h" #include "util/u_inlines.h" #include "util/u_hash_table.h" @@ -53,6 +54,33 @@ #define DBG_CHANNEL DBG_DEVICE +#if defined(PIPE_CC_GCC) && (defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)) + +#include <fpu_control.h> + +static void nine_setup_fpu() +{ + fpu_control_t c; + + _FPU_GETCW(c); + /* clear the control word */ + c &= _FPU_RESERVED; + /* d3d9 doc/wine tests: mask all exceptions, use single-precision + * and round to nearest */ + c |= _FPU_MASK_IM | _FPU_MASK_DM | _FPU_MASK_ZM | _FPU_MASK_OM | + _FPU_MASK_UM | _FPU_MASK_PM | _FPU_SINGLE | _FPU_RC_NEAREST; + _FPU_SETCW(c); +} + +#else + +static void nine_setup_fpu(void) +{ + WARN_ONCE("FPU setup not supported on non-x86 platforms\n"); +} + +#endif + static void NineDevice9_SetDefaultState( struct NineDevice9 *This, boolean is_reset ) { @@ -168,6 +196,9 @@ 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 */ |