diff options
Diffstat (limited to 'mesalib/src/glu/sgi/libnurbs/interface/bezierPatch.cc')
-rw-r--r-- | mesalib/src/glu/sgi/libnurbs/interface/bezierPatch.cc | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/mesalib/src/glu/sgi/libnurbs/interface/bezierPatch.cc b/mesalib/src/glu/sgi/libnurbs/interface/bezierPatch.cc deleted file mode 100644 index dbab3a1a2..000000000 --- a/mesalib/src/glu/sgi/libnurbs/interface/bezierPatch.cc +++ /dev/null @@ -1,206 +0,0 @@ -/* -** License Applicability. Except to the extent portions of this file are -** made subject to an alternative license as permitted in the SGI Free -** Software License B, Version 1.1 (the "License"), the contents of this -** file are subject only to the provisions of the License. You may not use -** this file except in compliance with the License. You may obtain a copy -** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 -** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: -** -** http://oss.sgi.com/projects/FreeB -** -** Note that, as provided in the License, the Software is distributed on an -** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS -** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND -** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A -** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. -** -** Original Code. The Original Code is: OpenGL Sample Implementation, -** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, -** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. -** Copyright in any portions created by third parties is as indicated -** elsewhere herein. All Rights Reserved. -** -** Additional Notice Provisions: The application programming interfaces -** established by SGI in conjunction with the Original Code are The -** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released -** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version -** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X -** Window System(R) (Version 1.3), released October 19, 1998. This software -** was created using the OpenGL(R) version 1.2.1 Sample Implementation -** published by SGI, but has not been independently verified as being -** compliant with the OpenGL(R) version 1.2.1 Specification. -** -*/ -/* -*/ - -#include "gluos.h" -#include <stdlib.h> -#include <stdio.h> -#include <assert.h> -#include <GL/glu.h> /*for drawing bzier patch*/ -#include "bezierPatch.h" -#include "bezierEval.h" - -/* - *allocate an instance of bezierPatch. The control points are unknown. But - *the space of this array is allocated with size of - * uorder*vorder*dimension - * - */ -bezierPatch* bezierPatchMake(float umin, float vmin, float umax, float vmax, int uorder, int vorder, int dimension) -{ - bezierPatch* ret = (bezierPatch*) malloc(sizeof(bezierPatch)); - assert(ret); - ret->umin = umin; - ret->vmin = vmin; - ret->umax = umax; - ret->vmax = vmax; - ret->uorder = uorder; - ret->vorder = vorder; - ret->dimension = dimension; - ret->ctlpoints = (float*) malloc(sizeof(float) * dimension * uorder * vorder); - assert(ret->ctlpoints); - - ret->next = NULL; - - return ret; -} - -bezierPatch* bezierPatchMake2(float umin, float vmin, float umax, float vmax, int uorder, int vorder, int dimension, int ustride, int vstride, float* ctlpoints) -{ - bezierPatch* ret = (bezierPatch*) malloc(sizeof(bezierPatch)); - assert(ret); - ret->umin = umin; - ret->vmin = vmin; - ret->umax = umax; - ret->vmax = vmax; - ret->uorder = uorder; - ret->vorder = vorder; - ret->dimension = dimension; - ret->ctlpoints = (float*) malloc(sizeof(float) * dimension * uorder * vorder); - assert(ret->ctlpoints); - - /*copy the control points there*/ - int the_ustride = vorder * dimension; - int the_vstride = dimension; - for(int i=0; i<uorder; i++) - for(int j=0; j<vorder; j++) - for(int k=0; k<dimension; k++) - ret->ctlpoints[i * the_ustride + j*the_vstride+k] = ctlpoints[i*ustride+j*vstride+k]; - - ret->next = NULL; - - return ret; -} - -/* - *deallocate the space as allocated by Make - */ -void bezierPatchDelete(bezierPatch *b) -{ - free(b->ctlpoints); - free(b); -} - -/*delete the whole linked list - */ -void bezierPatchDeleteList(bezierPatch *b) -{ - bezierPatch *temp; - while (b != NULL) { - temp = b; - b = b->next; - bezierPatchDelete(temp); - } -} - -bezierPatch* bezierPatchInsert(bezierPatch *list, bezierPatch *b) -{ - b->next = list; - return b; -} - -/*print the data stored in this patch*/ -void bezierPatchPrint(bezierPatch *b) -{ - printf("bezierPatch:\n"); - printf("umin,umax=(%f,%f), (vmin, vmax)=(%f,%f)\n", b->umin, b->umax, b->vmin, b->vmax); - printf("uorder=%i, vorder=%i\n", b->uorder, b->vorder); - printf("idmension = %i\n", b->dimension); -} - -/*print the whole list*/ -void bezierPatchPrintList(bezierPatch *list) -{ - bezierPatch* temp; - for(temp=list; temp != NULL; temp = temp->next) - bezierPatchPrint(temp); -} - -void bezierPatchEval(bezierPatch *b, float u, float v, float ret[]) -{ - if( u >= b->umin && u<= b->umax - && v >= b->vmin && v<= b->vmax) - { - - 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); - - } - else if(b->next != NULL) - bezierPatchEval(b->next, u,v, ret); - else - 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); -} - -/*the returned normal is normlized - */ -void bezierPatchEvalNormal(bezierPatch *b, float u, float v, float ret[]) -{ - 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); - - if( u >= b->umin && u<= b->umax - && v >= b->vmin && v<= b->vmax) - { - 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); - } - else if(b->next != NULL) - bezierPatchEvalNormal(b->next, u,v, ret); - else - 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); - -} - -void bezierPatchDraw(bezierPatch *bpatch, int u_reso, int v_reso) -{ - if(bpatch->dimension == 3) - glMap2f(GL_MAP2_VERTEX_3, bpatch->umin, bpatch->umax, 3*bpatch->vorder, bpatch->uorder, bpatch->vmin, bpatch->vmax,3, bpatch->vorder, (GLfloat*) bpatch->ctlpoints); - else - glMap2f(GL_MAP2_VERTEX_4, bpatch->umin, bpatch->umax, 4*bpatch->vorder, bpatch->uorder, bpatch->vmin, bpatch->vmax,3, bpatch->vorder, (GLfloat*) bpatch->ctlpoints); - - glMapGrid2f(u_reso, bpatch->umin, bpatch->umax, - v_reso, bpatch->vmin, bpatch->vmax); - glEvalMesh2(GL_LINE, 0, u_reso, 0, v_reso); -} - -void bezierPatchListDraw(bezierPatch *list, int u_reso, int v_reso) -{ - bezierPatch *temp; -glEnable(GL_LIGHTING); -glEnable(GL_LIGHT0); -glEnable(GL_MAP2_VERTEX_3); -glEnable(GL_AUTO_NORMAL); -glEnable(GL_NORMALIZE); -glColor3f(1,0,0); -#ifdef DEBUG -printf("mapmap\n"); -#endif - - - for(temp = list; temp != NULL; temp = temp->next) - bezierPatchDraw(temp, u_reso, v_reso); -} - - - |