ReactOS  0.4.12-dev-918-g6c6e7b8
bezierPatch.cc
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1 /*
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:
9 **
10 ** http://oss.sgi.com/projects/FreeB
11 **
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.
17 **
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.
23 **
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.
33 **
34 */
35 /*
36 */
37 
38 #include "gluos.h"
39 //#include <stdlib.h>
40 //#include <stdio.h>
41 #include <assert.h>
42 #include <GL/glu.h> /*for drawing bzier patch*/
43 #include "bezierPatch.h"
44 #include "bezierEval.h"
45 
46 /*
47  *allocate an instance of bezierPatch. The control points are unknown. But
48  *the space of this array is allocated with size of
49  * uorder*vorder*dimension
50  *
51  */
52 bezierPatch* bezierPatchMake(float umin, float vmin, float umax, float vmax, int uorder, int vorder, int dimension)
53 {
55  assert(ret);
56  ret->umin = umin;
57  ret->vmin = vmin;
58  ret->umax = umax;
59  ret->vmax = vmax;
60  ret->uorder = uorder;
61  ret->vorder = vorder;
62  ret->dimension = dimension;
63  ret->ctlpoints = (float*) malloc(sizeof(float) * dimension * uorder * vorder);
64  assert(ret->ctlpoints);
65 
66  ret->next = NULL;
67 
68  return ret;
69 }
70 
71 bezierPatch* bezierPatchMake2(float umin, float vmin, float umax, float vmax, int uorder, int vorder, int dimension, int ustride, int vstride, float* ctlpoints)
72 {
74  assert(ret);
75  ret->umin = umin;
76  ret->vmin = vmin;
77  ret->umax = umax;
78  ret->vmax = vmax;
79  ret->uorder = uorder;
80  ret->vorder = vorder;
81  ret->dimension = dimension;
82  ret->ctlpoints = (float*) malloc(sizeof(float) * dimension * uorder * vorder);
83  assert(ret->ctlpoints);
84 
85  /*copy the control points there*/
86  int the_ustride = vorder * dimension;
87  int the_vstride = dimension;
88  for(int i=0; i<uorder; i++)
89  for(int j=0; j<vorder; j++)
90  for(int k=0; k<dimension; k++)
91  ret->ctlpoints[i * the_ustride + j*the_vstride+k] = ctlpoints[i*ustride+j*vstride+k];
92 
93  ret->next = NULL;
94 
95  return ret;
96 }
97 
98 /*
99  *deallocate the space as allocated by Make
100  */
102 {
103  free(b->ctlpoints);
104  free(b);
105 }
106 
107 /*delete the whole linked list
108  */
110 {
111  bezierPatch *temp;
112  while (b != NULL) {
113  temp = b;
114  b = b->next;
116  }
117 }
118 
120 {
121  b->next = list;
122  return b;
123 }
124 
125 /*print the data stored in this patch*/
127 {
128  printf("bezierPatch:\n");
129  printf("umin,umax=(%f,%f), (vmin, vmax)=(%f,%f)\n", b->umin, b->umax, b->vmin, b->vmax);
130  printf("uorder=%i, vorder=%i\n", b->uorder, b->vorder);
131  printf("idmension = %i\n", b->dimension);
132 }
133 
134 /*print the whole list*/
136 {
137  bezierPatch* temp;
138  for(temp=list; temp != NULL; temp = temp->next)
140 }
141 
142 void bezierPatchEval(bezierPatch *b, float u, float v, float ret[])
143 {
144  if( u >= b->umin && u<= b->umax
145  && v >= b->vmin && v<= b->vmax)
146  {
147 
148  bezierSurfEval(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret);
149 
150  }
151  else if(b->next != NULL)
152  bezierPatchEval(b->next, u,v, ret);
153  else
154  bezierSurfEval(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret);
155 }
156 
157 /*the returned normal is normlized
158  */
159 void bezierPatchEvalNormal(bezierPatch *b, float u, float v, float ret[])
160 {
161  bezierSurfEvalNormal(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret);
162 
163  if( u >= b->umin && u<= b->umax
164  && v >= b->vmin && v<= b->vmax)
165  {
166  bezierSurfEvalNormal(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret);
167  }
168  else if(b->next != NULL)
169  bezierPatchEvalNormal(b->next, u,v, ret);
170  else
171  bezierSurfEvalNormal(b->umin, b->umax, b->uorder, b->vmin, b->vmax, b->vorder, b->dimension, b->ctlpoints, b->dimension * b->vorder, b->dimension, u, v, ret);
172 
173 }
174 
175 void bezierPatchDraw(bezierPatch *bpatch, int u_reso, int v_reso)
176 {
177  if(bpatch->dimension == 3)
178  glMap2f(GL_MAP2_VERTEX_3, bpatch->umin, bpatch->umax, 3*bpatch->vorder, bpatch->uorder, bpatch->vmin, bpatch->vmax,3, bpatch->vorder, (GLfloat*) bpatch->ctlpoints);
179  else
180  glMap2f(GL_MAP2_VERTEX_4, bpatch->umin, bpatch->umax, 4*bpatch->vorder, bpatch->uorder, bpatch->vmin, bpatch->vmax,3, bpatch->vorder, (GLfloat*) bpatch->ctlpoints);
181 
182  glMapGrid2f(u_reso, bpatch->umin, bpatch->umax,
183  v_reso, bpatch->vmin, bpatch->vmax);
184  glEvalMesh2(GL_LINE, 0, u_reso, 0, v_reso);
185 }
186 
187 void bezierPatchListDraw(bezierPatch *list, int u_reso, int v_reso)
188 {
189  bezierPatch *temp;
195 glColor3f(1,0,0);
196 #ifdef DEBUG
197 printf("mapmap\n");
198 #endif
199 
200 
201  for(temp = list; temp != NULL; temp = temp->next)
202  bezierPatchDraw(temp, u_reso, v_reso);
203 }
204 
205 
206 
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble * u
Definition: glfuncs.h:240
GLdouble GLdouble GLint GLint GLdouble GLdouble GLint vstride
Definition: glext.h:8308
float * ctlpoints
Definition: bezierPatch.h:58
GLdouble GLdouble GLint ustride
Definition: glext.h:8308
GLAPI void GLAPIENTRY glMap2f(GLenum target, GLfloat u1, GLfloat u2, GLint ustride, GLint uorder, GLfloat v1, GLfloat v2, GLint vstride, GLint vorder, const GLfloat *points)
void bezierPatchDelete(bezierPatch *b)
Definition: bezierPatch.cc:101
void bezierPatchPrint(bezierPatch *b)
Definition: bezierPatch.cc:126
#define free
Definition: debug_ros.c:5
#define assert(x)
Definition: debug.h:53
GLdouble GLdouble GLint GLint GLdouble GLdouble GLint GLint vorder
Definition: glext.h:8308
float vmin
Definition: bezierPatch.h:37
void bezierPatchEvalNormal(bezierPatch *b, float u, float v, float ret[])
Definition: bezierPatch.cc:159
bezierPatch * bezierPatchInsert(bezierPatch *list, bezierPatch *b)
Definition: bezierPatch.cc:119
struct bezierPatch * next
Definition: bezierPatch.h:63
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define GL_LIGHT0
Definition: gl.h:311
void bezierPatchDeleteList(bezierPatch *b)
Definition: bezierPatch.cc:109
#define GL_LINE
Definition: gl.h:266
bezierPatch * bezierPatchMake(float umin, float vmin, float umax, float vmax, int uorder, int vorder, int dimension)
Definition: bezierPatch.cc:52
smooth NULL
Definition: ftsmooth.c:416
void bezierPatchListDraw(bezierPatch *list, int u_reso, int v_reso)
Definition: bezierPatch.cc:187
#define GL_MAP2_VERTEX_4
Definition: gl.h:568
void bezierSurfEvalNormal(float u0, float u1, int uorder, float v0, float v1, int vorder, int dimension, float *ctlpoints, int ustride, int vstride, float u, float v, float retNormal[])
Definition: bezierEval.cc:202
#define b
Definition: ke_i.h:79
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint GLint GLint j
Definition: glfuncs.h:250
float umax
Definition: bezierPatch.h:37
GLAPI void GLAPIENTRY glMapGrid2f(GLint un, GLfloat u1, GLfloat u2, GLint vn, GLfloat v1, GLfloat v2)
GLdouble GLdouble GLint GLint uorder
Definition: glext.h:8308
GLboolean GLboolean GLboolean b
Definition: glext.h:6204
void bezierPatchEval(bezierPatch *b, float u, float v, float ret[])
Definition: bezierPatch.cc:142
bezierPatch * bezierPatchMake2(float umin, float vmin, float umax, float vmax, int uorder, int vorder, int dimension, int ustride, int vstride, float *ctlpoints)
Definition: bezierPatch.cc:71
#define GL_LIGHTING
Definition: gl.h:310
void bezierPatchPrintList(bezierPatch *list)
Definition: bezierPatch.cc:135
#define GL_AUTO_NORMAL
Definition: gl.h:550
float vmax
Definition: bezierPatch.h:37
int ret
#define GL_MAP2_VERTEX_3
Definition: gl.h:567
void bezierPatchDraw(bezierPatch *bpatch, int u_reso, int v_reso)
Definition: bezierPatch.cc:175
GLAPI void GLAPIENTRY glEnable(GLenum cap)
Definition: _list.h:228
#define GL_NORMALIZE
Definition: gl.h:343
void bezierSurfEval(float u0, float u1, int uorder, float v0, float v1, int vorder, int dimension, float *ctlpoints, int ustride, int vstride, float u, float v, float ret[])
Definition: bezierEval.cc:192
const GLdouble * v
Definition: gl.h:2040
static calc_node_t temp
Definition: rpn_ieee.c:38
#define list
Definition: rosglue.h:35
struct define * next
Definition: wpp.c:35
float umin
Definition: bezierPatch.h:37
float GLfloat
Definition: gl.h:161
#define malloc
Definition: debug_ros.c:4
GLAPI void GLAPIENTRY glColor3f(GLfloat red, GLfloat green, GLfloat blue)
int k
Definition: mpi.c:3369
GLAPI void GLAPIENTRY glEvalMesh2(GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2)
#define printf
Definition: config.h:203