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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