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00001 /*
00002 Copyright (c) 2012, Broadcom Europe Ltd
00003 All rights reserved.
00004 
00005 Redistribution and use in source and binary forms, with or without
00006 modification, are permitted provided that the following conditions are met:
00007     * Redistributions of source code must retain the above copyright
00008       notice, this list of conditions and the following disclaimer.
00009     * Redistributions in binary form must reproduce the above copyright
00010       notice, this list of conditions and the following disclaimer in the
00011       documentation and/or other materials provided with the distribution.
00012     * Neither the name of the copyright holder nor the
00013       names of its contributors may be used to endorse or promote products
00014       derived from this software without specific prior written permission.
00015 
00016 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
00017 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00018 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00019 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
00020 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
00021 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00022 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00023 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00024 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00025 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00026 */
00027 
00028 #ifndef MMAL_UTIL_RATIONAL_H
00029 #define MMAL_UTIL_RATIONAL_H
00030 
00031 #include "interface/mmal/mmal_types.h"
00032 
00040 #ifdef __cplusplus
00041 extern "C" {
00042 #endif
00043 
00053 MMAL_RATIONAL_T mmal_rational_add(MMAL_RATIONAL_T a, MMAL_RATIONAL_T b);
00054 
00064 MMAL_RATIONAL_T mmal_rational_subtract(MMAL_RATIONAL_T a, MMAL_RATIONAL_T b);
00065 
00075 MMAL_RATIONAL_T mmal_rational_multiply(MMAL_RATIONAL_T a, MMAL_RATIONAL_T b);
00076 
00086 MMAL_RATIONAL_T mmal_rational_divide(MMAL_RATIONAL_T a, MMAL_RATIONAL_T b);
00087 
00096 int32_t mmal_rational_to_fixed_16_16(MMAL_RATIONAL_T rational);
00097 
00104 MMAL_RATIONAL_T mmal_rational_from_fixed_16_16(int32_t fixed);
00105 
00110 void mmal_rational_simplify(MMAL_RATIONAL_T *rational);
00111 
00112 #ifdef __cplusplus
00113 }
00114 #endif
00115 
00118 #endif
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