mirror of https://github.com/ArduPilot/ardupilot
279 lines
16 KiB
C
279 lines
16 KiB
C
// scaledencode.h was generated by ProtoGen version 3.2.a
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/*
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* This file is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This file is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Oliver Walters
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*/
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#ifndef _SCALEDENCODE_H
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#define _SCALEDENCODE_H
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// Language target is C, C++ compilers: don't mangle us
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*!
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* \file
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*/
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/*!
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* \file
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* scaledencode routines place scaled numbers into a byte stream.
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*
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* scaledencode routines place scaled values into a big or little endian byte
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* stream. The values can be any legitimate type (double, float, uint32_t,
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* uint16_t, uint8_t, int32_t, int16_t, int8_t), and are encoded as either a
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* unsigned or signed integer from 1 to 8 bytes in length. Unsigned encodings
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* allow the caller to specify a minimum and a maximum value, with the only
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* limitation that the maximum value must be more than the minimum. Signed
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* encodings only allow the caller to specify a maximum value which gives
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* maximum absolute value that can be encoded.
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*
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* An example encoding would be: take a float that represents speed in meters
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* per second and encode it in two bytes from -200 to 200 meters per second.
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* In that example the encoding function would be:
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*
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* float32ScaledTo2SignedBeBytes(speed, bytestream, &index, 200);
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*
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* This would scale the speed according to (32767/200), and copy the resulting
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* two bytes to bytestream[index] as a signed 16 bit number in big endian
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* order. This would result in a velocity resolution of 0.006 m/s.
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*
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* Another example encoding is: take a double that represents altitude in
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* meters and encode it in three bytes from -1000 to 49000 meters:
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*
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* float64ScaledTo3UnsignedLeBytes(alt, bytestream, &index, -1000, 49000);
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*
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* This would transform the altitude according to (alt *(16777215/50000) + 1000)
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* and copy the resulting three bytes to bytestream[index] as an unsigned 24
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* bit number in little endian order. This would result in an altitude
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* resolution of 0.003 meters.
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*
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* scaledencode does not include routines that increase the resolution of the
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* inmemory value. For example the function floatScaledTo5UnsignedBeBytes() does
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* not exist, because expanding a float to 5 bytes does not make any resolution
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* improvement over encoding it in 4 bytes. In general the encoded format
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* must be equal to or less than the number of bytes of the raw data.
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*
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* Code generation for this module was affected by these global flags:
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* 64-bit integers are not supported.
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* Normal bitfields are supported, long bitfields are not.
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* Double precision floating points are not supported.
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*/
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#define __STDC_CONSTANT_MACROS
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#include <stdint.h>
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//! Scale a float using floating point scaling to the base integer type used for bitfields.
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unsigned int float32ScaledToBitfield(float value, float min, float scaler, int bits);
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//! Encode a float on a byte stream by floating point scaling to fit in 4 unsigned bytes in big endian order.
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void float32ScaledTo4UnsignedBeBytes(float value, uint8_t* bytes, int* index, float min, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 4 unsigned bytes in little endian order.
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void float32ScaledTo4UnsignedLeBytes(float value, uint8_t* bytes, int* index, float min, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 4 signed bytes in big endian order.
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void float32ScaledTo4SignedBeBytes(float value, uint8_t* bytes, int* index, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 4 signed bytes in little endian order.
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void float32ScaledTo4SignedLeBytes(float value, uint8_t* bytes, int* index, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 3 unsigned bytes in big endian order.
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void float32ScaledTo3UnsignedBeBytes(float value, uint8_t* bytes, int* index, float min, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 3 unsigned bytes in little endian order.
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void float32ScaledTo3UnsignedLeBytes(float value, uint8_t* bytes, int* index, float min, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 3 signed bytes in big endian order.
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void float32ScaledTo3SignedBeBytes(float value, uint8_t* bytes, int* index, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 3 signed bytes in little endian order.
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void float32ScaledTo3SignedLeBytes(float value, uint8_t* bytes, int* index, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 2 unsigned bytes in big endian order.
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void float32ScaledTo2UnsignedBeBytes(float value, uint8_t* bytes, int* index, float min, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 2 unsigned bytes in little endian order.
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void float32ScaledTo2UnsignedLeBytes(float value, uint8_t* bytes, int* index, float min, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 2 signed bytes in big endian order.
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void float32ScaledTo2SignedBeBytes(float value, uint8_t* bytes, int* index, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 2 signed bytes in little endian order.
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void float32ScaledTo2SignedLeBytes(float value, uint8_t* bytes, int* index, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 1 unsigned byte.
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void float32ScaledTo1UnsignedBytes(float value, uint8_t* bytes, int* index, float min, float scaler);
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//! Encode a float on a byte stream by floating point scaling to fit in 1 signed byte.
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void float32ScaledTo1SignedBytes(float value, uint8_t* bytes, int* index, float scaler);
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//! Scale a uint32_t using integer scaling to the base integer type used for bitfields.
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unsigned int uint32ScaledToBitfield(uint32_t value, int32_t min, uint32_t scaler, int bits);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 4 unsigned bytes in big endian order.
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void uint32ScaledTo4UnsignedBeBytes(uint32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 4 unsigned bytes in little endian order.
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void uint32ScaledTo4UnsignedLeBytes(uint32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 4 signed bytes in big endian order.
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void uint32ScaledTo4SignedBeBytes(uint32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 4 signed bytes in little endian order.
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void uint32ScaledTo4SignedLeBytes(uint32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 3 unsigned bytes in big endian order.
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void uint32ScaledTo3UnsignedBeBytes(uint32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 3 unsigned bytes in little endian order.
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void uint32ScaledTo3UnsignedLeBytes(uint32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 3 signed bytes in big endian order.
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void uint32ScaledTo3SignedBeBytes(uint32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 3 signed bytes in little endian order.
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void uint32ScaledTo3SignedLeBytes(uint32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 2 unsigned bytes in big endian order.
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void uint32ScaledTo2UnsignedBeBytes(uint32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 2 unsigned bytes in little endian order.
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void uint32ScaledTo2UnsignedLeBytes(uint32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 2 signed bytes in big endian order.
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void uint32ScaledTo2SignedBeBytes(uint32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 2 signed bytes in little endian order.
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void uint32ScaledTo2SignedLeBytes(uint32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 1 unsigned byte.
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void uint32ScaledTo1UnsignedBytes(uint32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a uint32_t on a byte stream by integer scaling to fit in 1 signed byte.
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void uint32ScaledTo1SignedBytes(uint32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Scale a int32_t using integer scaling to the base integer type used for bitfields.
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unsigned int int32ScaledToBitfield(int32_t value, int32_t min, uint32_t scaler, int bits);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 4 unsigned bytes in big endian order.
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void int32ScaledTo4UnsignedBeBytes(int32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 4 unsigned bytes in little endian order.
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void int32ScaledTo4UnsignedLeBytes(int32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 4 signed bytes in big endian order.
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void int32ScaledTo4SignedBeBytes(int32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 4 signed bytes in little endian order.
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void int32ScaledTo4SignedLeBytes(int32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 3 unsigned bytes in big endian order.
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void int32ScaledTo3UnsignedBeBytes(int32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 3 unsigned bytes in little endian order.
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void int32ScaledTo3UnsignedLeBytes(int32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 3 signed bytes in big endian order.
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void int32ScaledTo3SignedBeBytes(int32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 3 signed bytes in little endian order.
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void int32ScaledTo3SignedLeBytes(int32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 2 unsigned bytes in big endian order.
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void int32ScaledTo2UnsignedBeBytes(int32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 2 unsigned bytes in little endian order.
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void int32ScaledTo2UnsignedLeBytes(int32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 2 signed bytes in big endian order.
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void int32ScaledTo2SignedBeBytes(int32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 2 signed bytes in little endian order.
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void int32ScaledTo2SignedLeBytes(int32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 1 unsigned byte.
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void int32ScaledTo1UnsignedBytes(int32_t value, uint8_t* bytes, int* index, int32_t min, uint32_t scaler);
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//! Encode a int32_t on a byte stream by integer scaling to fit in 1 signed byte.
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void int32ScaledTo1SignedBytes(int32_t value, uint8_t* bytes, int* index, uint32_t scaler);
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//! Scale a uint16_t using integer scaling to the base integer type used for bitfields.
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unsigned int uint16ScaledToBitfield(uint16_t value, int16_t min, uint16_t scaler, int bits);
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//! Encode a uint16_t on a byte stream by integer scaling to fit in 2 unsigned bytes in big endian order.
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void uint16ScaledTo2UnsignedBeBytes(uint16_t value, uint8_t* bytes, int* index, int16_t min, uint16_t scaler);
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//! Encode a uint16_t on a byte stream by integer scaling to fit in 2 unsigned bytes in little endian order.
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void uint16ScaledTo2UnsignedLeBytes(uint16_t value, uint8_t* bytes, int* index, int16_t min, uint16_t scaler);
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//! Encode a uint16_t on a byte stream by integer scaling to fit in 2 signed bytes in big endian order.
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void uint16ScaledTo2SignedBeBytes(uint16_t value, uint8_t* bytes, int* index, uint16_t scaler);
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//! Encode a uint16_t on a byte stream by integer scaling to fit in 2 signed bytes in little endian order.
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void uint16ScaledTo2SignedLeBytes(uint16_t value, uint8_t* bytes, int* index, uint16_t scaler);
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//! Encode a uint16_t on a byte stream by integer scaling to fit in 1 unsigned byte.
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void uint16ScaledTo1UnsignedBytes(uint16_t value, uint8_t* bytes, int* index, int16_t min, uint16_t scaler);
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//! Encode a uint16_t on a byte stream by integer scaling to fit in 1 signed byte.
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void uint16ScaledTo1SignedBytes(uint16_t value, uint8_t* bytes, int* index, uint16_t scaler);
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//! Scale a int16_t using integer scaling to the base integer type used for bitfields.
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unsigned int int16ScaledToBitfield(int16_t value, int16_t min, uint16_t scaler, int bits);
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//! Encode a int16_t on a byte stream by integer scaling to fit in 2 unsigned bytes in big endian order.
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void int16ScaledTo2UnsignedBeBytes(int16_t value, uint8_t* bytes, int* index, int16_t min, uint16_t scaler);
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//! Encode a int16_t on a byte stream by integer scaling to fit in 2 unsigned bytes in little endian order.
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void int16ScaledTo2UnsignedLeBytes(int16_t value, uint8_t* bytes, int* index, int16_t min, uint16_t scaler);
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//! Encode a int16_t on a byte stream by integer scaling to fit in 2 signed bytes in big endian order.
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void int16ScaledTo2SignedBeBytes(int16_t value, uint8_t* bytes, int* index, uint16_t scaler);
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//! Encode a int16_t on a byte stream by integer scaling to fit in 2 signed bytes in little endian order.
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void int16ScaledTo2SignedLeBytes(int16_t value, uint8_t* bytes, int* index, uint16_t scaler);
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//! Encode a int16_t on a byte stream by integer scaling to fit in 1 unsigned byte.
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void int16ScaledTo1UnsignedBytes(int16_t value, uint8_t* bytes, int* index, int16_t min, uint16_t scaler);
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//! Encode a int16_t on a byte stream by integer scaling to fit in 1 signed byte.
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void int16ScaledTo1SignedBytes(int16_t value, uint8_t* bytes, int* index, uint16_t scaler);
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//! Scale a uint8_t using integer scaling to the base integer type used for bitfields.
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unsigned int uint8ScaledToBitfield(uint8_t value, int8_t min, uint8_t scaler, int bits);
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//! Encode a uint8_t on a byte stream by integer scaling to fit in 1 unsigned byte.
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void uint8ScaledTo1UnsignedBytes(uint8_t value, uint8_t* bytes, int* index, int8_t min, uint8_t scaler);
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//! Encode a uint8_t on a byte stream by integer scaling to fit in 1 signed byte.
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void uint8ScaledTo1SignedBytes(uint8_t value, uint8_t* bytes, int* index, uint8_t scaler);
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//! Scale a int8_t using integer scaling to the base integer type used for bitfields.
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unsigned int int8ScaledToBitfield(int8_t value, int8_t min, uint8_t scaler, int bits);
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//! Encode a int8_t on a byte stream by integer scaling to fit in 1 unsigned byte.
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void int8ScaledTo1UnsignedBytes(int8_t value, uint8_t* bytes, int* index, int8_t min, uint8_t scaler);
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//! Encode a int8_t on a byte stream by integer scaling to fit in 1 signed byte.
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void int8ScaledTo1SignedBytes(int8_t value, uint8_t* bytes, int* index, uint8_t scaler);
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#ifdef __cplusplus
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}
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#endif
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#endif // _SCALEDENCODE_H
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