diff options
Diffstat (limited to 'src/xine-engine/cpu_accel.c')
-rw-r--r-- | src/xine-engine/cpu_accel.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/src/xine-engine/cpu_accel.c b/src/xine-engine/cpu_accel.c deleted file mode 100644 index 8c28d950a..000000000 --- a/src/xine-engine/cpu_accel.c +++ /dev/null @@ -1,124 +0,0 @@ -/* - * cpu_accel.c - * Copyright (C) 1999-2001 Aaron Holtzman <aholtzma@ess.engr.uvic.ca> - * - * This file is part of mpeg2dec, a free MPEG-2 video stream decoder. - * - * 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 - */ - -#include "config.h" - -#include <inttypes.h> - -#include "attributes.h" -#include "cpu_accel.h" - -#ifdef ARCH_X86 -static uint32_t x86_accel (void) -{ - uint32_t eax, ebx, ecx, edx; - int AMD; - uint32_t caps; - -#define cpuid(op,eax,ebx,ecx,edx) \ - asm ("cpuid" \ - : "=a" (eax), \ - "=b" (ebx), \ - "=c" (ecx), \ - "=d" (edx) \ - : "a" (op) \ - : "cc") - - - asm ("pushfl\n\t" - "pushfl\n\t" - "popl %0\n\t" - "movl %0,%1\n\t" - "xorl $0x200000,%0\n\t" - "pushl %0\n\t" - "popfl\n\t" - "pushfl\n\t" - "popl %0\n\t" - "popfl" - : "=a" (eax), - "=b" (ebx) - : - : "cc"); - - if (eax == ebx) /* no cpuid */ - return 0; - - cpuid (0x00000000, eax, ebx, ecx, edx); - if (!eax) /* vendor string only */ - return 0; - - AMD = (ebx == 0x68747541) && (ecx == 0x444d4163) && (edx == 0x69746e65); - - cpuid (0x00000001, eax, ebx, ecx, edx); - if (! (edx & 0x00800000)) /* no MMX */ - return 0; - caps = MM_ACCEL_X86_MMX; - - if (edx & 0x02000000) /* SSE - identical to AMD MMX extensions */ - caps |= MM_ACCEL_X86_SSE | MM_ACCEL_X86_MMXEXT; - - if (edx & 0x04000000) /* SSE2 */ - caps |= MM_ACCEL_X86_SSE2; - - cpuid (0x80000000, eax, ebx, ecx, edx); - if (eax < 0x80000001) /* no extended capabilities */ - return caps; - - cpuid (0x80000001, eax, ebx, ecx, edx); - - if (edx & 0x80000000) /* 3DNOW */ - caps |= MM_ACCEL_X86_3DNOW; - - if (edx & 0x40000000) /* 3DNOWEXT */ - /*caps |= MM_ACCEL_X86_???*/ ; - - if (AMD && (edx & 0x00400000)) /* AMD MMX extensions */ - caps |= MM_ACCEL_X86_MMXEXT; - - return caps; -} -#endif - -uint32_t mm_accel (void) -{ -#ifdef ARCH_X86 - static int got_accel = 0; - static uint32_t accel; - - if (!got_accel) { - got_accel = 1; - accel = x86_accel (); - } - - return accel; -#else -#ifdef HAVE_MLIB - return MM_ACCEL_MLIB; -#else - return 0; -#endif -#endif -} - -uint32_t mm_support (void) -{ - return mm_accel(); -} |