| /***************************************************************************** |
| * cpu.h: h264 encoder library |
| ***************************************************************************** |
| * Copyright (C) 2004-2008 Loren Merritt <lorenm@u.washington.edu> |
| * |
| * This program 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. |
| * |
| * This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. |
| *****************************************************************************/ |
| |
| #ifndef X264_CPU_H |
| #define X264_CPU_H |
| |
| uint32_t x264_cpu_detect( void ); |
| int x264_cpu_num_processors( void ); |
| void x264_emms( void ); |
| void x264_cpu_mask_misalign_sse( void ); |
| |
| /* kluge: |
| * gcc can't give variables any greater alignment than the stack frame has. |
| * We need 16 byte alignment for SSE2, so here we make sure that the stack is |
| * aligned to 16 bytes. |
| * gcc 4.2 introduced __attribute__((force_align_arg_pointer)) to fix this |
| * problem, but I don't want to require such a new version. |
| * This applies only to x86_32, since other architectures that need alignment |
| * also have ABIs that ensure aligned stack. */ |
| #if defined(ARCH_X86) && defined(HAVE_MMX) |
| void x264_stack_align( void (*func)(x264_t*), x264_t *arg ); |
| #else |
| #define x264_stack_align(func,arg) func(arg) |
| #endif |
| |
| typedef struct { |
| const char name[16]; |
| int flags; |
| } x264_cpu_name_t; |
| extern const x264_cpu_name_t x264_cpu_names[]; |
| |
| #endif |
