gstreamer/gst/goom/mathtools.h
Stefan Kost 6eb6d5b9ac gst/goom/: Add license headers in all source files. Remove filter.c from
Original commit message from CVS:
* gst/goom/Makefile.am:
* gst/goom/README:
* gst/goom/config_param.c:
* gst/goom/convolve_fx.c:
* gst/goom/drawmethods.c:
* gst/goom/drawmethods.h:
* gst/goom/filters.c:
* gst/goom/filters_mmx.s:
* gst/goom/flying_stars_fx.c:
* gst/goom/goom.h:
* gst/goom/goom_config.h:
* gst/goom/goom_config_param.h:
* gst/goom/goom_core.c:
* gst/goom/goom_filters.h:
* gst/goom/goom_fx.h:
* gst/goom/goom_graphic.h:
* gst/goom/goom_plugin_info.h:
* gst/goom/goom_tools.c:
* gst/goom/goom_tools.h:
* gst/goom/goom_typedefs.h:
* gst/goom/goom_visual_fx.h:
* gst/goom/graphic.c:
* gst/goom/ifs.c:
* gst/goom/ifs.h:
* gst/goom/lines.c:
* gst/goom/lines.h:
* gst/goom/mathtools.c:
* gst/goom/mathtools.h:
* gst/goom/mmx.c:
* gst/goom/motif_goom1.h:
* gst/goom/motif_goom2.h:
* gst/goom/plugin_info.c:
* gst/goom/ppc_drawings.h:
* gst/goom/ppc_zoom_ultimate.h:
* gst/goom/sound_tester.c:
* gst/goom/sound_tester.h:
* gst/goom/surf3d.c:
* gst/goom/surf3d.h:
* gst/goom/tentacle3d.c:
* gst/goom/tentacle3d.h:
* gst/goom/v3d.c:
* gst/goom/v3d.h:
* gst/goom/xmmx.c:
Add license headers in all source files. Remove filter.c from
EXTRA_DIST, as its in SOURCES already. Mention the files in the REDME
which are not used right now. Fixes #557709.
2008-10-28 06:50:57 +00:00

57 lines
1.6 KiB
C

/* Goom Project
* Copyright (C) <2003> Jean-Christophe Hoelt <jeko@free.fr>
*
* goom_core.c:Contains the core of goom's work.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef MATHTOOLS_H
#define MATHTOOLS_H
#define _double2fixmagic (68719476736.0*1.5)
/* 2^36 * 1.5, (52-_shiftamt=36) uses limited precisicion to floor */
#define _shiftamt 16
/* 16.16 fixed point representation */
#if BigEndian_
#define iexp_ 0
#define iman_ 1
#else
#define iexp_ 1
#define iman_ 0
#endif /* BigEndian_ */
/* TODO: this optimization is very efficient: put it again when all works
#ifdef HAVE_MMX
#define F2I(dbl,i) {double d = dbl + _double2fixmagic; i = ((int*)&d)[iman_] >> _shiftamt;}
#else*/
#define F2I(dbl,i) i=(int)dbl;
/*#endif*/
#if 0
#define SINCOS(f,s,c) \
__asm__ __volatile__ ("fsincos" : "=t" (c), "=u" (s) : "0" (f))
#else
#define SINCOS(f,s,c) {s=sin(f);c=cos(f);}
#endif
extern float sin256[256];
extern float cos256[256];
#endif