vpx/vpx_ports/system_state.h
Martin Storsjo a6fdfda44c Restore emms usage on x86_64 after 726b021a12
Even on x86_64, emms has to be called if the x87 state has
been clobbered - the calling code (either within libvpx or
in a caller outside of libvpx) may be using the x87 instructions,
even though use of them isn't all that common on x86_64.

This fixes builds with clang for mingw/x86_64.

Change-Id: I1f6072835590b862bad156f17331ba65c813ddd9
2018-03-23 19:57:46 +00:00

31 lines
798 B
C

/*
* Copyright (c) 2015 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef VPX_PORTS_SYSTEM_STATE_H_
#define VPX_PORTS_SYSTEM_STATE_H_
#include "./vpx_config.h"
#ifdef __cplusplus
extern "C" {
#endif
#if (ARCH_X86 || ARCH_X86_64) && HAVE_MMX
extern void vpx_clear_system_state();
#else
#define vpx_clear_system_state()
#endif // (ARCH_X86 || ARCH_X86_64) && HAVE_MMX
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VPX_PORTS_SYSTEM_STATE_H_