mirror of
https://github.com/mpv-player/mpv
synced 2024-11-14 22:48:35 +01:00
6e695dc64f
This affects all kind of spaces (' ',^I,^M,^L,...): actually
[:space:] regex character set.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29306 b3059339-0415-0410-9bf9-f77b7e298cf2
284 lines
6.5 KiB
C
284 lines
6.5 KiB
C
/*
|
|
* cpu_accel.c
|
|
* Copyright (C) 2000-2004 Michel Lespinasse <walken@zoy.org>
|
|
* Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
|
|
*
|
|
* This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
|
|
* See http://libmpeg2.sourceforge.net/ for updates.
|
|
*
|
|
* mpeg2dec is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* mpeg2dec 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* Modified for use with MPlayer, see libmpeg2_changes.diff for the exact changes.
|
|
* detailed changelog at http://svn.mplayerhq.hu/mplayer/trunk/
|
|
* $Id$
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <inttypes.h>
|
|
|
|
#include "mpeg2.h"
|
|
#include "attributes.h"
|
|
#include "mpeg2_internal.h"
|
|
|
|
#include "cpudetect.h"
|
|
|
|
#if ARCH_X86 || ARCH_X86_64
|
|
static inline uint32_t arch_accel (uint32_t accel)
|
|
{
|
|
/* Use MPlayer CPU detection instead of libmpeg2 variant. */
|
|
#if 0
|
|
if (accel & (MPEG2_ACCEL_X86_3DNOW | MPEG2_ACCEL_X86_MMXEXT))
|
|
accel |= MPEG2_ACCEL_X86_MMX;
|
|
|
|
if (accel & (MPEG2_ACCEL_X86_SSE2 | MPEG2_ACCEL_X86_SSE3))
|
|
accel |= MPEG2_ACCEL_X86_MMXEXT;
|
|
|
|
if (accel & (MPEG2_ACCEL_X86_SSE3))
|
|
accel |= MPEG2_ACCEL_X86_SSE2;
|
|
|
|
#ifdef ACCEL_DETECT
|
|
if (accel & MPEG2_ACCEL_DETECT) {
|
|
uint32_t eax, ebx, ecx, edx;
|
|
int AMD;
|
|
|
|
#if defined(__x86_64__) || (!defined(PIC) && !defined(__PIC__))
|
|
#define cpuid(op,eax,ebx,ecx,edx) \
|
|
__asm__ ("cpuid" \
|
|
: "=a" (eax), \
|
|
"=b" (ebx), \
|
|
"=c" (ecx), \
|
|
"=d" (edx) \
|
|
: "a" (op) \
|
|
: "cc")
|
|
#else /* PIC version : save ebx (not needed on x86_64) */
|
|
#define cpuid(op,eax,ebx,ecx,edx) \
|
|
__asm__ ("pushl %%ebx\n\t" \
|
|
"cpuid\n\t" \
|
|
"movl %%ebx,%1\n\t" \
|
|
"popl %%ebx" \
|
|
: "=a" (eax), \
|
|
"=r" (ebx), \
|
|
"=c" (ecx), \
|
|
"=d" (edx) \
|
|
: "a" (op) \
|
|
: "cc")
|
|
#endif
|
|
|
|
#ifndef __x86_64__ /* x86_64 supports the cpuid op */
|
|
__asm__ ("pushf\n\t"
|
|
"pushf\n\t"
|
|
"pop %0\n\t"
|
|
"movl %0,%1\n\t"
|
|
"xorl $0x200000,%0\n\t"
|
|
"push %0\n\t"
|
|
"popf\n\t"
|
|
"pushf\n\t"
|
|
"pop %0\n\t"
|
|
"popf"
|
|
: "=r" (eax),
|
|
"=r" (ebx)
|
|
:
|
|
: "cc");
|
|
|
|
if (eax == ebx) /* no cpuid */
|
|
return accel;
|
|
#endif
|
|
|
|
cpuid (0x00000000, eax, ebx, ecx, edx);
|
|
if (!eax) /* vendor string only */
|
|
return accel;
|
|
|
|
AMD = (ebx == 0x68747541 && ecx == 0x444d4163 && edx == 0x69746e65);
|
|
|
|
cpuid (0x00000001, eax, ebx, ecx, edx);
|
|
if (! (edx & 0x00800000)) /* no MMX */
|
|
return accel;
|
|
|
|
accel |= MPEG2_ACCEL_X86_MMX;
|
|
if (edx & 0x02000000) /* SSE - identical to AMD MMX ext. */
|
|
accel |= MPEG2_ACCEL_X86_MMXEXT;
|
|
|
|
if (edx & 0x04000000) /* SSE2 */
|
|
accel |= MPEG2_ACCEL_X86_SSE2;
|
|
|
|
if (ecx & 0x00000001) /* SSE3 */
|
|
accel |= MPEG2_ACCEL_X86_SSE3;
|
|
|
|
cpuid (0x80000000, eax, ebx, ecx, edx);
|
|
if (eax < 0x80000001) /* no extended capabilities */
|
|
return accel;
|
|
|
|
cpuid (0x80000001, eax, ebx, ecx, edx);
|
|
|
|
if (edx & 0x80000000)
|
|
accel |= MPEG2_ACCEL_X86_3DNOW;
|
|
|
|
if (AMD && (edx & 0x00400000)) /* AMD MMX extensions */
|
|
accel |= MPEG2_ACCEL_X86_MMXEXT;
|
|
}
|
|
#endif /* ACCEL_DETECT */
|
|
|
|
return accel;
|
|
|
|
#else /* 0 */
|
|
accel = 0;
|
|
if (gCpuCaps.hasMMX)
|
|
accel |= MPEG2_ACCEL_X86_MMX;
|
|
if (gCpuCaps.hasSSE2)
|
|
accel |= MPEG2_ACCEL_X86_SSE2;
|
|
if (gCpuCaps.hasMMX2)
|
|
accel |= MPEG2_ACCEL_X86_MMXEXT;
|
|
if (gCpuCaps.has3DNow)
|
|
accel |= MPEG2_ACCEL_X86_3DNOW;
|
|
|
|
return accel;
|
|
|
|
#endif /* 0 */
|
|
}
|
|
#endif /* ARCH_X86 || ARCH_X86_64 */
|
|
|
|
#if defined(ACCEL_DETECT) && (ARCH_PPC || ARCH_SPARC)
|
|
#include <signal.h>
|
|
#include <setjmp.h>
|
|
|
|
static sigjmp_buf jmpbuf;
|
|
static volatile sig_atomic_t canjump = 0;
|
|
|
|
static RETSIGTYPE sigill_handler (int sig)
|
|
{
|
|
if (!canjump) {
|
|
signal (sig, SIG_DFL);
|
|
raise (sig);
|
|
}
|
|
|
|
canjump = 0;
|
|
siglongjmp (jmpbuf, 1);
|
|
}
|
|
#endif /* ACCEL_DETECT && (ARCH_PPC || ARCH_SPARC) */
|
|
|
|
#if ARCH_PPC
|
|
static uint32_t arch_accel (uint32_t accel)
|
|
{
|
|
#ifdef ACCEL_DETECT
|
|
if ((accel & (MPEG2_ACCEL_PPC_ALTIVEC | MPEG2_ACCEL_DETECT)) ==
|
|
MPEG2_ACCEL_DETECT) {
|
|
static RETSIGTYPE (* oldsig) (int);
|
|
|
|
oldsig = signal (SIGILL, sigill_handler);
|
|
if (sigsetjmp (jmpbuf, 1)) {
|
|
signal (SIGILL, oldsig);
|
|
return accel;
|
|
}
|
|
|
|
canjump = 1;
|
|
|
|
#if defined(__APPLE_CC__) /* apple */
|
|
#define VAND(a,b,c) "vand v" #a ",v" #b ",v" #c "\n\t"
|
|
#else /* gnu */
|
|
#define VAND(a,b,c) "vand " #a "," #b "," #c "\n\t"
|
|
#endif
|
|
asm volatile ("mtspr 256, %0\n\t"
|
|
VAND (0, 0, 0)
|
|
:
|
|
: "r" (-1));
|
|
|
|
canjump = 0;
|
|
accel |= MPEG2_ACCEL_PPC_ALTIVEC;
|
|
|
|
signal (SIGILL, oldsig);
|
|
}
|
|
#endif /* ACCEL_DETECT */
|
|
|
|
return accel;
|
|
}
|
|
#endif /* ARCH_PPC */
|
|
|
|
#if ARCH_SPARC
|
|
static uint32_t arch_accel (uint32_t accel)
|
|
{
|
|
if (accel & MPEG2_ACCEL_SPARC_VIS2)
|
|
accel |= MPEG2_ACCEL_SPARC_VIS;
|
|
|
|
#ifdef ACCEL_DETECT
|
|
if ((accel & (MPEG2_ACCEL_SPARC_VIS2 | MPEG2_ACCEL_DETECT)) ==
|
|
MPEG2_ACCEL_DETECT) {
|
|
static RETSIGTYPE (* oldsig) (int);
|
|
|
|
oldsig = signal (SIGILL, sigill_handler);
|
|
if (sigsetjmp (jmpbuf, 1)) {
|
|
signal (SIGILL, oldsig);
|
|
return accel;
|
|
}
|
|
|
|
canjump = 1;
|
|
|
|
/* pdist %f0, %f0, %f0 */
|
|
__asm__ __volatile__(".word\t0x81b007c0");
|
|
|
|
canjump = 0;
|
|
accel |= MPEG2_ACCEL_SPARC_VIS;
|
|
|
|
if (sigsetjmp (jmpbuf, 1)) {
|
|
signal (SIGILL, oldsig);
|
|
return accel;
|
|
}
|
|
|
|
canjump = 1;
|
|
|
|
/* edge8n %g0, %g0, %g0 */
|
|
__asm__ __volatile__(".word\t0x81b00020");
|
|
|
|
canjump = 0;
|
|
accel |= MPEG2_ACCEL_SPARC_VIS2;
|
|
|
|
signal (SIGILL, oldsig);
|
|
}
|
|
#endif /* ACCEL_DETECT */
|
|
|
|
return accel;
|
|
}
|
|
#endif /* ARCH_SPARC */
|
|
|
|
#if ARCH_ALPHA
|
|
static inline uint32_t arch_accel (uint32_t accel)
|
|
{
|
|
if (accel & MPEG2_ACCEL_ALPHA_MVI)
|
|
accel |= MPEG2_ACCEL_ALPHA;
|
|
|
|
#ifdef ACCEL_DETECT
|
|
if (accel & MPEG2_ACCEL_DETECT) {
|
|
uint64_t no_mvi;
|
|
|
|
asm volatile ("amask %1, %0"
|
|
: "=r" (no_mvi)
|
|
: "rI" (256)); /* AMASK_MVI */
|
|
accel |= no_mvi ? MPEG2_ACCEL_ALPHA : (MPEG2_ACCEL_ALPHA |
|
|
MPEG2_ACCEL_ALPHA_MVI);
|
|
}
|
|
#endif /* ACCEL_DETECT */
|
|
|
|
return accel;
|
|
}
|
|
#endif /* ARCH_ALPHA */
|
|
|
|
uint32_t mpeg2_detect_accel (uint32_t accel)
|
|
{
|
|
#if ARCH_X86 || ARCH_X86_64 || ARCH_PPC || ARCH_ALPHA || ARCH_SPARC
|
|
accel = arch_accel (accel);
|
|
#endif
|
|
return accel;
|
|
}
|