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Diffstat (limited to 'gst-libs/gst/floatcast/floatcast.h')
| -rw-r--r-- | gst-libs/gst/floatcast/floatcast.h | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/gst-libs/gst/floatcast/floatcast.h b/gst-libs/gst/floatcast/floatcast.h deleted file mode 100644 index 279af282..00000000 --- a/gst-libs/gst/floatcast/floatcast.h +++ /dev/null @@ -1,102 +0,0 @@ -/* GStreamer - * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> - * Library <2002> Steve Baker <stevebaker_org@yahoo.co.uk> - * - * 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. - */ - -/** - * SECTION:gstfloatcast - * @short_description: Floating point platform independence macros - * - * The floatcast.h header file contains a couple of convenience macros for - * floating point numbers. - * - * If you include this header, your application or library must link against - * libm (for maths.h support). - * - * For optimal results, your application's or library's build - * system should check whether the C99 functions lrint and lrintf are supported - * and define the preprocessor symbols HAVE_LRINT and HAVE_LRINTF if so. If - * you are using autoconf, you can do this by using the AC_C99_FUNC_LRINT and - * AC_C99_FUNC_LRINTF checks in your configure.ac or configure.in file and - * including your application's config.h header before you include floatcast.h. - */ - -#ifndef __FLOATCAST_H__ -#define __FLOATCAST_H__ - -#include <string.h> -#include <glib.h> - -#if defined (_MSC_VER) && !defined (inline) -#define inline __inline -#endif - -G_BEGIN_DECLS - -/* FIXME 0.11: these gst_cast_*() functions are not used anywhere, so we could - * just as well get rid of them and move the float/double swap macros into - * gstutils.h in core */ - -/** - * gst_cast_float: - * @x: input value - * - * Casts a 32-bit floating point value (float) to an integer without bias. - */ -/** - * gst_cast_double: - * @x: input value - * - * Casts a 64-bit floating point value (double) to an integer without bias. - */ - -/* FIXME: HAVE_LRINT && HAVE_LRINTF are defined by config.h - they should - * not be used in an installed header. */ -#if defined(HAVE_LRINT) && defined(HAVE_LRINTF) - - /* These defines enable functionality introduced with the 1999 ISO C - ** standard. They must be defined before the inclusion of math.h to - ** engage them. If optimisation is enabled, these functions will be - ** inlined. With optimisation switched off, you have to link in the - ** maths library using -lm. - */ - - #define _ISOC9X_SOURCE 1 - #define _ISOC99_SOURCE 1 - - #define __USE_ISOC9X 1 - #define __USE_ISOC99 1 - - #include <math.h> - - #define gst_cast_float(x) ((gint)lrintf(x)) - #define gst_cast_double(x) ((gint)lrint(x)) - -#else - #include <math.h> - - /* use a standard c cast, but do rounding correctly */ - #define gst_cast_float(x) ((gint)floor((x)+0.5)) - #define gst_cast_double(x) ((gint)floor((x)+0.5)) - -#endif - -G_END_DECLS - -#endif /* __FLOATCAST_H__ */ - |