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 enum {
  49         C3_RAW_TYPE = 0,
  50         C3_TRIANGLE_TYPE,
  51         C3_TEXTURE_TYPE,
  52 };
  53
  54 typedef union {
  55         struct  { uint32_t type : 16, subtype : 16; };
  56         uint32_t value;
  57 } c3geometry_type_t;
  58
  59 typedef struct c3geometry_t {
  60         c3geometry_type_t       type;   // GL_LINES etc
  61         int                                     dirty : 1,
  62                                                 texture : 1,    // has a valid material.texture
  63                                                 custom : 1;             // has a custom driver
  64         str_p                           name;   // optional
  65         c3material_t            mat;
  66         struct c3object_t * object;
  67         const struct c3driver_geometry_t ** driver;
  68
  69         c3vertex_array_t        vertice;
  70         c3tex_array_t           textures;
  71         c3colorf_array_t        colorf;
  72         c3vertex_array_t        normals;
  73
  74         // projected version of the vertice
  75         c3vertex_array_t        projected;
  76         c3bbox_t                        bbox;
  77 } c3geometry_t, *c3geometry_p;
  78
  79 DECLARE_C_ARRAY(c3geometry_p, c3geometry_array, 4);
  80
  81 c3geometry_p
  82 c3geometry_new(
  83                 c3geometry_type_t type,
  84                 struct c3object_t * o /* = NULL */);
  85 c3geometry_p
  86 c3geometry_init(
  87                 c3geometry_p g,
  88                 c3geometry_type_t type,
  89                 struct c3object_t * o /* = NULL */);
  90 void
  91 c3geometry_dispose(
  92                 c3geometry_p g);
  93
  94 void
  95 c3geometry_prepare(
  96                 c3geometry_p g );
  97 void
  98 c3geometry_draw(
  99                 c3geometry_p g );
 100
 101 //! allocate (if not there) and return a custom driver for this geometry
 102 struct c3driver_geometry_t *
 103 c3geometry_get_custom(
 104                 c3geometry_p g );
 105
 106 IMPLEMENT_C_ARRAY(c3geometry_array);
 107 IMPLEMENT_C_ARRAY(c3vertex_array);
 108 IMPLEMENT_C_ARRAY(c3tex_array);
 109 IMPLEMENT_C_ARRAY(c3colorf_array);
 110
 111 static inline c3geometry_type_t
 112 c3geometry_type(int type, int subtype)
 113 {
 114         c3geometry_type_t r = { .type = type, .subtype = subtype };
 115         return r;
 116 }
 117
 118 #endif /* __C3GEOMETRY_H___ */