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authorMåns Rullgård <mans@mansr.com>2010-09-09 18:51:45 +0000
committerMåns Rullgård <mans@mansr.com>2010-09-09 18:51:45 +0000
commit9275438a19c02264762d550a077bbf83acd63f3f (patch)
tree6fe28bcf94fa6d97578579f251a0f8e9a193be97 /libavutil/ppc/cpu.h
parentd222e9f9daeabe499653bc79c9a25b774941e630 (diff)
Clean up av_get_cpu_flag()
Instead of defining functions in per-arch header files included by the main cpu.c, define them normally and call them from the generic one. Originally committed as revision 25084 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavutil/ppc/cpu.h')
-rw-r--r--libavutil/ppc/cpu.h88
1 files changed, 0 insertions, 88 deletions
diff --git a/libavutil/ppc/cpu.h b/libavutil/ppc/cpu.h
deleted file mode 100644
index 684361c5ff..0000000000
--- a/libavutil/ppc/cpu.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_PPC_CPU_H
-#define AVUTIL_PPC_CPU_H
-
-#ifdef __APPLE__
-#undef _POSIX_C_SOURCE
-#include <sys/sysctl.h>
-#elif defined(__OpenBSD__)
-#include <sys/param.h>
-#include <sys/sysctl.h>
-#include <machine/cpu.h>
-#elif defined(__AMIGAOS4__)
-#include <exec/exec.h>
-#include <interfaces/exec.h>
-#include <proto/exec.h>
-#endif /* __APPLE__ */
-
-#include "config.h"
-
-/**
- * This function MAY rely on signal() or fork() in order to make sure AltiVec
- * is present.
- */
-int av_get_cpu_flags(void)
-{
-#if HAVE_ALTIVEC
-#ifdef __AMIGAOS4__
- ULONG result = 0;
- extern struct ExecIFace *IExec;
-
- IExec->GetCPUInfoTags(GCIT_VectorUnit, &result, TAG_DONE);
- if (result == VECTORTYPE_ALTIVEC)
- return AV_CPU_FLAG_ALTIVEC;
- return 0;
-#elif defined(__APPLE__) || defined(__OpenBSD__)
-#ifdef __OpenBSD__
- int sels[2] = {CTL_MACHDEP, CPU_ALTIVEC};
-#else
- int sels[2] = {CTL_HW, HW_VECTORUNIT};
-#endif
- int has_vu = 0;
- size_t len = sizeof(has_vu);
- int err;
-
- err = sysctl(sels, 2, &has_vu, &len, NULL, 0);
-
- if (err == 0)
- return has_vu ? AV_CPU_FLAG_ALTIVEC : 0;
- return 0;
-#elif CONFIG_RUNTIME_CPUDETECT
- int proc_ver;
- // Support of mfspr PVR emulation added in Linux 2.6.17.
- __asm__ volatile("mfspr %0, 287" : "=r" (proc_ver));
- proc_ver >>= 16;
- if (proc_ver & 0x8000 ||
- proc_ver == 0x000c ||
- proc_ver == 0x0039 || proc_ver == 0x003c ||
- proc_ver == 0x0044 || proc_ver == 0x0045 ||
- proc_ver == 0x0070)
- return AV_CPU_FLAG_ALTIVEC;
- return 0;
-#else
- // Since we were compiled for AltiVec, just assume we have it
- // until someone comes up with a proper way (not involving signal hacks).
- return AV_CPU_FLAG_ALTIVEC;
-#endif /* __AMIGAOS4__ */
-#endif /* HAVE_ALTIVEC */
- return 0;
-}
-
-#endif /* AVUTIL_PPC_CPU_H */