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System | : | Linux MiraNet 3.0.0-14-generic-pae #23-Ubuntu SMP Mon Nov 21 22:07:10 UTC 2011 i686 |
Software | : | Apache. PHP/5.3.6-13ubuntu3.10 |
ID | : | uid=65534(nobody) gid=65534(nogroup) groups=65534(nogroup)
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Disabled Functions: pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,
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/
usr/
src/
linux-headers-3.0.0-14/
include/
drm/
- drwxr-xr-x
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Viewing file: drm_fixed.h (2.14 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
/* * Copyright 2009 Red Hat Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: Dave Airlie */ #ifndef DRM_FIXED_H #define DRM_FIXED_H
typedef union dfixed { u32 full; } fixed20_12;
#define dfixed_const(A) (u32)(((A) << 12))/* + ((B + 0.000122)*4096)) */ #define dfixed_const_half(A) (u32)(((A) << 12) + 2048) #define dfixed_const_666(A) (u32)(((A) << 12) + 2731) #define dfixed_const_8(A) (u32)(((A) << 12) + 3277) #define dfixed_mul(A, B) ((u64)((u64)(A).full * (B).full + 2048) >> 12) #define dfixed_init(A) { .full = dfixed_const((A)) } #define dfixed_init_half(A) { .full = dfixed_const_half((A)) } #define dfixed_trunc(A) ((A).full >> 12)
static inline u32 dfixed_floor(fixed20_12 A) { u32 non_frac = dfixed_trunc(A);
return dfixed_const(non_frac); }
static inline u32 dfixed_ceil(fixed20_12 A) { u32 non_frac = dfixed_trunc(A);
if (A.full > dfixed_const(non_frac)) return dfixed_const(non_frac + 1); else return dfixed_const(non_frac); }
static inline u32 dfixed_div(fixed20_12 A, fixed20_12 B) { u64 tmp = ((u64)A.full << 13);
do_div(tmp, B.full); tmp += 1; tmp /= 2; return lower_32_bits(tmp); } #endif
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