2 ** License Applicability. Except to the extent portions of this file are
3 ** made subject to an alternative license as permitted in the SGI Free
4 ** Software License B, Version 1.1 (the "License"), the contents of this
5 ** file are subject only to the provisions of the License. You may not use
6 ** this file except in compliance with the License. You may obtain a copy
7 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
8 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
10 ** http://oss.sgi.com/projects/FreeB
12 ** Note that, as provided in the License, the Software is distributed on an
13 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
14 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
15 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
16 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
18 ** Original Code. The Original Code is: OpenGL Sample Implementation,
19 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
20 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
21 ** Copyright in any portions created by third parties is as indicated
22 ** elsewhere herein. All Rights Reserved.
24 ** Additional Notice Provisions: The application programming interfaces
25 ** established by SGI in conjunction with the Original Code are The
26 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
27 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
28 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
29 ** Window System(R) (Version 1.3), released October 19, 1998. This software
30 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
31 ** published by SGI, but has not been independently verified as being
32 ** compliant with the OpenGL(R) version 1.2.1 Specification.
34 ** $Date: 2001/03/17 00:25:40 $ $Revision: 1.1 $
37 ** $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/interface/bezierPatchMesh.h,v 1.1 2001/03/17 00:25:40 brianp Exp $
40 #ifndef _BEZIERPATCHMESH_H
41 #define _BEZIERPATCHMESH_H
43 #include "bezierPatch.h"
45 typedef struct bezierPatchMesh{
46 bezierPatch *bpatch; /*vertex*/
47 bezierPatch *bpatch_normal;
48 bezierPatch *bpatch_texcoord; /*s,t,r,q*/
49 bezierPatch *bpatch_color; /*RGBA*/
51 float *UVarray; /*all UV components of all vertices of all strips*/
52 int *length_array; /*[i] is the number of vertices in the ith strip*/
53 GLenum *type_array; /*[i] is the type of the ith primitive*/
55 /*to support dynamic insertion*/
58 int size_length_array;
59 int index_length_array;
61 int counter; /*track the current strip size*/
62 GLenum type; /*track the current type: 0: GL_TRIANGLES, 1: GL_TRIANGLE_STRIP*/
64 /*we eventually want to evaluate from (u,v) to (x,y,z) and draw them*/
65 float *vertex_array; /*each vertex contains three components*/
66 float *normal_array; /*each normal contains three components*/
68 float *texcoord_array;
70 /*in case we need a linked list*/
71 struct bezierPatchMesh *next;
80 bezierPatchMesh *bezierPatchMeshMake(int maptype, float umin, float umax, int ustride, int uorder, float vmin, float vmax, int vstride, int vorder, float *ctlpoints, int size_UVarray, int size_length_array);
82 /*initilize patches to be null*/
83 bezierPatchMesh *bezierPatchMeshMake2(int size_UVarray, int size_length_array);
85 void bezierPatchMeshPutPatch(bezierPatchMesh *bpm, int maptype, float umin, float umax, int ustride, int uorder, float vmin, float vmax, int vstride, int vorder, float *ctlpoints);
87 void bezierPatchMeshDelete(bezierPatchMesh *bpm);
89 void bezierPatchMeshBeginStrip(bezierPatchMesh *bpm, GLenum type);
91 void bezierPatchMeshEndStrip(bezierPatchMesh *bpm);
93 void bezierPatchMeshInsertUV(bezierPatchMesh *bpm, float u, float v);
95 void bezierPatchMeshPrint(bezierPatchMesh *bpm);
97 bezierPatchMesh* bezierPatchMeshListInsert(bezierPatchMesh* list, bezierPatchMesh* bpm);
99 void bezierPatchMeshListPrint(bezierPatchMesh* list);
101 int bezierPatchMeshListTotalStrips(bezierPatchMesh* list);
103 int bezierPatchMeshListTotalVert(bezierPatchMesh* list);
104 int bezierPatchMeshNumTriangles(bezierPatchMesh* bpm);
105 int bezierPatchMeshListNumTriangles(bezierPatchMesh* list);
107 void bezierPatchMeshDelDeg(bezierPatchMesh* bpm);
110 void bezierPatchMeshEval(bezierPatchMesh* bpm);
112 void bezierPatchMeshDraw(bezierPatchMesh* bpm);
114 void bezierPatchMeshListDraw(bezierPatchMesh* list);
115 void bezierPatchMeshListEval(bezierPatchMesh* list);
116 void bezierPatchMeshListCollect(bezierPatchMesh* list, float **vertex_array, float **normal_array, int **length_array, GLenum **type_array, int *num_strips);
118 void bezierPatchMeshListDelDeg(bezierPatchMesh* list);
119 void bezierPatchMeshListDelete(bezierPatchMesh *list);
120 bezierPatchMesh* bezierPatchMeshListReverse(bezierPatchMesh* list);
121 void drawStrips(float *vertex_array, float *normal_array, int *length_array, GLenum *type_array, int num_strips);