git.rot13.org Git - simavr/blob - examples/board_reprap/src/c3/c3geometry.h

   1 /*
   2         c3geometry.h
   3
   4         Copyright 2008-2012 Michel Pollet <buserror@gmail.com>
   5
   6         This file is part of simavr.
   7
   8         simavr is free software: you can redistribute it and/or modify
   9         it under the terms of the GNU General Public License as published by
  10         the Free Software Foundation, either version 3 of the License, or
  11         (at your option) any later version.
  12
  13         simavr is distributed in the hope that it will be useful,
  14         but WITHOUT ANY WARRANTY; without even the implied warranty of
  15         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16         GNU General Public License for more details.
  17
  18         You should have received a copy of the GNU General Public License
  19         along with simavr.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22
  23 #ifndef __C3GEOMETRY_H___
  24 #define __C3GEOMETRY_H___
  25
  26 #include "c3/c3algebra.h"
  27 #include "c_utils.h"
  28
  29 typedef c3vec3 c3vertex;
  30 typedef c3vec4 c3colorf;
  31 typedef c3vec2 c3tex;
  32
  33 struct c3object_t;
  34
  35 DECLARE_C_ARRAY(c3vertex, c3vertex_array, 16);
  36 DECLARE_C_ARRAY(c3tex, c3tex_array, 16);
  37 DECLARE_C_ARRAY(c3colorf, c3colorf_array, 16);
  38
  39 typedef struct c3material_t {
  40         c3colorf        color;
  41         uint32_t        texture;
  42 } c3material_t;
  43
  44 typedef struct c3bbox_t {
  45         c3vec3  min, max;
  46 } c3bbox_t;
  47
  48 #define C3_RAW_TYPE     (0)
  49
  50 typedef union {
  51         struct  { uint32_t type : 16, subtype : 16; };
  52         uint32_t value;
  53 } c3geometry_type_t;
  54
  55 typedef struct c3geometry_t {
  56         c3geometry_type_t       type;   // GL_LINES etc
  57         int                                     dirty : 1, texture : 1;
  58         str_p                           name;   // optional
  59         c3material_t            mat;
  60         struct c3object_t * object;
  61         const struct c3driver_geometry_t ** driver;
  62         c3vertex_array_t        vertice;
  63         c3tex_array_t           textures;
  64         c3colorf_array_t        colorf;
  65
  66         // projected version of the vertice
  67         c3vertex_array_t        projected;
  68         c3bbox_t                        bbox;
  69
  70         /*
  71          * optional, geometry dependant custom draw method
  72          * return nonzero will orevent the default drawing code
  73          * from being called (c3context one)
  74          */
  75         int     (*draw)(struct c3geometry_t *);
  76 } c3geometry_t, *c3geometry_p;
  77
  78 DECLARE_C_ARRAY(c3geometry_p, c3geometry_array, 4);
  79
  80 c3geometry_p
  81 c3geometry_new(
  82                 c3geometry_type_t type,
  83                 struct c3object_t * o /* = NULL */);
  84 c3geometry_p
  85 c3geometry_init(
  86                 c3geometry_p g,
  87                 c3geometry_type_t type,
  88                 struct c3object_t * o /* = NULL */);
  89 void
  90 c3geometry_dispose(
  91                 c3geometry_p g);
  92
  93 void
  94 c3geometry_prepare(
  95                 c3geometry_p g );
  96
  97 IMPLEMENT_C_ARRAY(c3geometry_array);
  98 IMPLEMENT_C_ARRAY(c3vertex_array);
  99 IMPLEMENT_C_ARRAY(c3tex_array);
 100 IMPLEMENT_C_ARRAY(c3colorf_array);
 101
 102 static inline c3geometry_type_t
 103 c3geometry_type(int type, int subtype)
 104 {
 105         c3geometry_type_t r = { .type = type, . subtype = subtype };
 106         return r;
 107 }
 108
 109 #endif /* __C3GEOMETRY_H___ */