src/mesa/tnl_dd/t_dd_vertex.h

   1
   2 /*
   3  * Mesa 3-D graphics library
   4  * Version:  4.0.3
   5  *
   6  * Copyright (C) 1999-2002  Brian Paul   All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included
  16  * in all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  22  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  23  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  * Authors:
  26  *    Keith Whitwell <keith@tungstengraphics.com>
  27  */
  28
  29 typedef struct {
  30    GLfloat x, y, z, w;
  31 } TAG(_coord_t);
  32
  33 #ifdef COLOR_IS_RGBA
  34 typedef struct {
  35 #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN
  36    GLubyte alpha, blue, green, red;
  37 #else
  38    GLubyte red, green, blue, alpha;
  39 #endif
  40 } TAG(_color_t);
  41 #else
  42 typedef struct {
  43 #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN
  44    GLubyte alpha, red, green, blue;
  45 #else
  46    GLubyte blue, green, red, alpha;
  47 #endif
  48 } TAG(_color_t);
  49 #endif
  50
  51 typedef union {
  52    struct {
  53       GLfloat x, y, z, w;
  54       TAG(_color_t) color;
  55       TAG(_color_t) specular;
  56       GLfloat u0, v0;
  57       GLfloat u1, v1;
  58       GLfloat u2, v2;
  59       GLfloat u3, v3;
  60    } v;
  61    struct {
  62       GLfloat x, y, z, w;
  63       TAG(_color_t) color;
  64       TAG(_color_t) specular;
  65       GLfloat u0, v0, q0;
  66       GLfloat u1, v1, q1;
  67       GLfloat u2, v2, q2;
  68       GLfloat u3, v3, q3;
  69    } pv;
  70    struct {
  71       GLfloat x, y, z;
  72       TAG(_color_t) color;
  73    } tv;
  74    GLfloat f[24];
  75    GLuint  ui[24];
  76    GLubyte ub4[24][4];
  77 } TAG(Vertex), *TAG(VertexPtr);
  78