From 81989429cb65e99045602738b1221f80d0433c19 Mon Sep 17 00:00:00 2001
From: KennethSimpson <150403993+KennethSimpson@users.noreply.github.com>
Date: Fri, 17 Nov 2023 14:37:34 +1300
Subject: [PATCH] Create lookup_tables.h

Header for lookup tables (LUTs)

Defines structures and whatnot for LUT code.
---
 Inc/lookup_tables.h | 59 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 Inc/lookup_tables.h

diff --git a/Inc/lookup_tables.h b/Inc/lookup_tables.h
new file mode 100644
index 00000000..813ffe52
--- /dev/null
+++ b/Inc/lookup_tables.h
@@ -0,0 +1,59 @@
+/*
+ * lookup_tables.h
+ *
+ *  Created on: Nov. 17, 2023
+ *      Author: Kenneth
+ */
+
+#pragma once
+
+
+typedef enum {
+    SCALE_TYPE_INT8 = 0,
+    SCALE_TYPE_INT16
+} scaleType_e;
+
+
+//Handle circular reference. Reason explained below
+typedef struct scale_t scale_t;
+typedef struct scale_result_t scale_result_t;
+
+typedef struct scale_functions {
+    int (*Compare)(const void *, const void *);
+    void (*SetValue)(const void *, const void *); 
+    void * (*GetArrayValue)(void * data, uint8_t index); 
+    void (*MapValue)(void * result, void * source, void * sourceLow, void * sourceHigh, void * mapLow, void * mapHigh);  
+} scale_functions_t;    
+
+//contains snapshot of scaling action given specified source value
+//Thus actual scaling can be asyncronous to source value updates
+//   if *scale->SourceValue == result.ScaledValue,  no need to re-scale.
+//        
+//
+struct scale_result_t {
+    scale_t * Scale;
+    uint8_t IndexHigh;
+    uint8_t IndexLow;
+    void * ScaledValue;
+};
+
+// Defnies the 
+struct scale_t {
+    scaleType_e Type;  
+    scale_result_t * Result;
+    void * SourceValue;
+    uint8_t Length;
+    void * Data;
+};
+
+typedef struct {
+    uint8_t Dimensions;
+    void * Adder;
+    scale_result_t * ScaledValue;
+    void * Data;
+} map_t;
+
+void Scale(scale_t * scale, scale_functions_t * functions);
+void MapLookup(map_t * map, void * result, scale_functions_t * functions);
+void __scale_t_SetResult(scale_t * scale, scale_result_t * result);
+void SetScaleFunctions_int(scale_functions_t * functions);