Work in progress

gpx.h

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+//
+//  gpx.c
+//
+//  Created by WHPThomas on 1/04/13.
+//
+//  Copyright (c) 2013 WHPThomas.
+//
+//  Referencing ReplicatorG sources from /src/replicatorg/drivers
+//  which are part of the ReplicatorG project - http://www.replicat.org
+//  Copyright (c) 2008 Zach Smith
+//  and Makerbot4GSailfish.java Copyright (C) 2012 Jetty / Dan Newman
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation; either version 2 of the License, or
+//  (at your option) any later version.
+//
+//  This program 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 General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software Foundation,
+//  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+#ifndef gpx_gpx_h
+#define gpx_gpx_h
+
+#include <limits.h>
+
+// x3g axes bitfields
+
+#define X_IS_SET 0x1
+#define Y_IS_SET 0x2
+#define Z_IS_SET 0x4
+#define A_IS_SET 0x8
+#define B_IS_SET 0x10
+
+#define XYZ_BIT_MASK 0x7
+#define AXIS_BIT_MASK 0x1F
+
+#define E_IS_SET 0x20
+
+#define COMMAND_BIT_MASK 0x3F
+
+#define F_IS_SET 0x40
+
+#define L_IS_SET 0x80
+#define P_IS_SET 0x100
+#define R_IS_SET 0x200
+#define S_IS_SET 0x400
+
+#define COMMENT_IS_SET 0x800
+
+// commands
+
+#define G_IS_SET 0x1000
+#define M_IS_SET 0x2000
+#define T_IS_SET 0x4000
+
+typedef unsigned short u16;
+
+#if ULONG_MAX == 0xFFFF
+typedef unsigned long u32;
+#else
+typedef unsigned int u32;
+#endif
+
+typedef struct tPoint3d {
+    double x;
+    double y;
+    double z;
+} Point3d, *Ptr3d;
+
+typedef struct tPoint5d {
+    double x;
+    double y;
+    double z;
+    double a;
+    double b;   
+} Point5d, *Ptr5d;
+
+typedef struct tParemeter {
+    double x;
+    double y;
+    double z;
+    double a;
+    double b;
+    
+    double f;
+    double l;
+    double p;
+    double r;
+    double s;
+} Paremeter, *PtrParameter;
+
+typedef struct tCommand {
+    // parameters
+    double x;
+    double y;
+    double z;
+    double a;
+    double b;
+    
+    double e;
+    double f;
+    double l;
+    double p;
+    double r;
+    double s;
+    
+    // commands
+    u32 g;
+    u32 m;
+    u32 t;
+    
+    // comments
+    char *comment;
+    
+    // state
+    u32 flag;
+} Command, *PtrCommand;
+
+// endstop flags
+
+#define ENDSTOP_IS_MIN 0
+#define ENDSTOP_IS_MAX 1
+
+typedef struct tAxis {
+    double max_feedrate;
+    double home_feedrate;
+    double steps_per_mm;
+    unsigned endstop;
+} Axis;
+
+typedef struct tExtruder {
+    double max_feedrate;
+    double steps_per_mm;
+    double motor_steps;
+    unsigned hbp_present;
+} Extruder;
+
+typedef struct tMachine {
+    Axis x;
+    Axis y;
+    Axis z;
+    Extruder a;
+    Extruder b;
+    unsigned timeout;
+} Machine;
+
+#define SUCCESS 0
+#define FAILURE 1
+
+#endif