995dcb610c
Took the opportunity to undo the Godot changed made to the
opus source. The opus module should eventually be built in its
own environment to avoid polluting others with too many include
dirs and defines.
TODO: Fix the platform/ stuff for opus.
(cherry picked from commit d9a291f641)
speex module was only added while cherry-picking, as speex is removed
in the master branch but we don't want to break compatibility in 2.1.x.
Unbundling wasn't done as the module uses the internal speex_free,
so it would require some more work.
191 lines
5.1 KiB
C++
191 lines
5.1 KiB
C++
#ifndef _OS_H
|
|
#define _OS_H
|
|
/********************************************************************
|
|
* *
|
|
* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
|
|
* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
|
|
* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
|
|
* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
|
|
* *
|
|
* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2015 *
|
|
* by the Xiph.Org Foundation http://www.xiph.org/ *
|
|
* *
|
|
********************************************************************
|
|
|
|
function: #ifdef jail to whip a few platforms into the UNIX ideal.
|
|
last mod: $Id: os.h 19457 2015-03-03 00:15:29Z giles $
|
|
|
|
********************************************************************/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <math.h>
|
|
#include <ogg/os_types.h>
|
|
|
|
#include "misc.h"
|
|
|
|
#ifndef _V_IFDEFJAIL_H_
|
|
# define _V_IFDEFJAIL_H_
|
|
|
|
# ifdef __GNUC__
|
|
# define STIN static __inline__
|
|
# elif _WIN32
|
|
# define STIN static __inline
|
|
# else
|
|
# define STIN static
|
|
# endif
|
|
|
|
#ifdef DJGPP
|
|
# define rint(x) (floor((x)+0.5f))
|
|
#endif
|
|
|
|
#ifndef M_PI
|
|
# define M_PI (3.1415926536f)
|
|
#endif
|
|
|
|
#if defined(_WIN32) && !defined(__SYMBIAN32__)
|
|
# include <malloc.h>
|
|
# define rint(x) (floor((x)+0.5f))
|
|
# define NO_FLOAT_MATH_LIB
|
|
# define FAST_HYPOT(a, b) sqrt((a)*(a) + (b)*(b))
|
|
#endif
|
|
|
|
#if defined(__SYMBIAN32__) && defined(__WINS__)
|
|
void *_alloca(size_t size);
|
|
# define alloca _alloca
|
|
#endif
|
|
|
|
#ifndef FAST_HYPOT
|
|
# define FAST_HYPOT hypot
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#ifdef HAVE_ALLOCA_H
|
|
# include <alloca.h>
|
|
#endif
|
|
|
|
#ifdef USE_MEMORY_H
|
|
# include <memory.h>
|
|
#endif
|
|
|
|
#ifndef min
|
|
# define min(x,y) ((x)>(y)?(y):(x))
|
|
#endif
|
|
|
|
#ifndef max
|
|
# define max(x,y) ((x)<(y)?(y):(x))
|
|
#endif
|
|
|
|
|
|
/* Special i386 GCC implementation */
|
|
#if defined(__i386__) && defined(__GNUC__) && !defined(__BEOS__)
|
|
# define VORBIS_FPU_CONTROL
|
|
/* both GCC and MSVC are kinda stupid about rounding/casting to int.
|
|
Because of encapsulation constraints (GCC can't see inside the asm
|
|
block and so we end up doing stupid things like a store/load that
|
|
is collectively a noop), we do it this way */
|
|
|
|
/* we must set up the fpu before this works!! */
|
|
|
|
typedef ogg_int16_t vorbis_fpu_control;
|
|
|
|
static inline void vorbis_fpu_setround(vorbis_fpu_control *fpu){
|
|
ogg_int16_t ret;
|
|
ogg_int16_t temp;
|
|
__asm__ __volatile__("fnstcw %0\n\t"
|
|
"movw %0,%%dx\n\t"
|
|
"andw $62463,%%dx\n\t"
|
|
"movw %%dx,%1\n\t"
|
|
"fldcw %1\n\t":"=m"(ret):"m"(temp): "dx");
|
|
*fpu=ret;
|
|
}
|
|
|
|
static inline void vorbis_fpu_restore(vorbis_fpu_control fpu){
|
|
__asm__ __volatile__("fldcw %0":: "m"(fpu));
|
|
}
|
|
|
|
/* assumes the FPU is in round mode! */
|
|
static inline int vorbis_ftoi(double f){ /* yes, double! Otherwise,
|
|
we get extra fst/fld to
|
|
truncate precision */
|
|
int i;
|
|
__asm__("fistl %0": "=m"(i) : "t"(f));
|
|
return(i);
|
|
}
|
|
#endif /* Special i386 GCC implementation */
|
|
|
|
|
|
/* MSVC inline assembly. 32 bit only; inline ASM isn't implemented in the
|
|
* 64 bit compiler and doesn't work on arm. */
|
|
#if defined(_MSC_VER) && !defined(_WIN64) && \
|
|
!defined(_WIN32_WCE) && !defined(_M_ARM)
|
|
# define VORBIS_FPU_CONTROL
|
|
|
|
typedef ogg_int16_t vorbis_fpu_control;
|
|
|
|
static __inline int vorbis_ftoi(double f){
|
|
int i;
|
|
__asm{
|
|
fld f
|
|
fistp i
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static __inline void vorbis_fpu_setround(vorbis_fpu_control *fpu){
|
|
(void)fpu;
|
|
}
|
|
|
|
static __inline void vorbis_fpu_restore(vorbis_fpu_control fpu){
|
|
(void)fpu;
|
|
}
|
|
|
|
#endif /* Special MSVC 32 bit implementation */
|
|
|
|
|
|
/* Optimized code path for x86_64 builds. Uses SSE2 intrinsics. This can be
|
|
done safely because all x86_64 CPUs supports SSE2. */
|
|
#if (defined(_MSC_VER) && defined(_WIN64)) || (defined(__GNUC__) && defined (__x86_64__))
|
|
# define VORBIS_FPU_CONTROL
|
|
|
|
typedef ogg_int16_t vorbis_fpu_control;
|
|
|
|
#include <emmintrin.h>
|
|
static __inline int vorbis_ftoi(double f){
|
|
return _mm_cvtsd_si32(_mm_load_sd(&f));
|
|
}
|
|
|
|
static __inline void vorbis_fpu_setround(vorbis_fpu_control *fpu){
|
|
(void)fpu;
|
|
}
|
|
|
|
static __inline void vorbis_fpu_restore(vorbis_fpu_control fpu){
|
|
(void)fpu;
|
|
}
|
|
|
|
#endif /* Special MSVC x64 implementation */
|
|
|
|
|
|
/* If no special implementation was found for the current compiler / platform,
|
|
use the default implementation here: */
|
|
#ifndef VORBIS_FPU_CONTROL
|
|
|
|
typedef int vorbis_fpu_control;
|
|
|
|
static int vorbis_ftoi(double f){
|
|
/* Note: MSVC and GCC (at least on some systems) round towards zero, thus,
|
|
the floor() call is required to ensure correct roudning of
|
|
negative numbers */
|
|
return (int)floor(f+.5);
|
|
}
|
|
|
|
/* We don't have special code for this compiler/arch, so do it the slow way */
|
|
# define vorbis_fpu_setround(vorbis_fpu_control) {}
|
|
# define vorbis_fpu_restore(vorbis_fpu_control) {}
|
|
|
|
#endif /* default implementation */
|
|
|
|
#endif /* _OS_H */
|