| /* |
| ** 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. |
| ** |
| ** $Date: 2001/07/16 15:46:42 $ $Revision: 1.2 $ |
| */ |
| /* |
| ** $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/interface/glinterface.cc,v 1.2 2001/07/16 15:46:42 brianp Exp $ |
| */ |
| |
| #include "gluos.h" |
| #include <GL/gl.h> |
| #include <GL/glu.h> |
| #include <stdio.h> |
| #include "glimports.h" |
| #include "glrenderer.h" |
| #include "nurbsconsts.h" |
| |
| //#define DOWN_LOAD_NURBS |
| #ifdef DOWN_LOAD_NURBS |
| |
| #include "oglTrimNurbs.h" |
| static int surfcount = 0; |
| static oglTrimNurbs* otn = NULL; |
| nurbSurf* tempNurb = NULL; |
| oglTrimLoops* tempTrim = NULL; |
| #endif |
| |
| |
| //for LOD |
| extern "C" {void glu_LOD_eval_list(GLUnurbs *nurb, int level);} |
| |
| void glu_LOD_eval_list(GLUnurbs *nurb, int level) |
| { |
| nurb->LOD_eval_list(level); |
| } |
| |
| GLUnurbs * GLAPIENTRY |
| gluNewNurbsRenderer(void) |
| { |
| GLUnurbs *t; |
| |
| t = new GLUnurbs(); |
| return t; |
| } |
| |
| void GLAPIENTRY |
| gluDeleteNurbsRenderer(GLUnurbs *r) |
| { |
| delete r; |
| } |
| |
| extern "C" |
| void GLAPIENTRY |
| |
| gluDeleteNurbsTessellatorEXT(GLUnurbsObj *r) |
| { |
| delete r; |
| } |
| |
| void GLAPIENTRY |
| gluBeginSurface(GLUnurbs *r) |
| { |
| #ifdef DOWN_LOAD_NURBS |
| surfcount++; |
| tempTrim = OTL_make(10,10); |
| #endif |
| r->bgnsurface(0); |
| } |
| |
| void GLAPIENTRY |
| gluBeginCurve(GLUnurbs *r) |
| { |
| r->bgncurve(0); |
| } |
| |
| void GLAPIENTRY |
| gluEndCurve(GLUnurbs *r) |
| { |
| r->endcurve(); |
| } |
| |
| void GLAPIENTRY |
| gluEndSurface(GLUnurbs *r) |
| { |
| #ifdef DOWN_LOAD_NURBS |
| if(surfcount == 1) |
| otn = OTN_make(1); |
| OTN_insert(otn, tempNurb, tempTrim); |
| if(surfcount >= 1) |
| { |
| #ifdef DEBUG |
| printf("write file\n"); |
| #endif |
| OTN_write(otn, "out.otn"); |
| |
| } |
| #endif |
| |
| r->endsurface(); |
| } |
| |
| void GLAPIENTRY |
| gluBeginTrim(GLUnurbs *r) |
| { |
| #ifdef DOWN_LOAD_NURBS |
| OTL_bgnTrim(tempTrim); |
| #endif |
| |
| r->bgntrim(); |
| } |
| |
| void GLAPIENTRY |
| gluEndTrim(GLUnurbs *r) |
| { |
| #ifdef DOWN_LOAD_NURBS |
| OTL_endTrim(tempTrim); |
| #endif |
| r->endtrim(); |
| } |
| |
| void GLAPIENTRY |
| gluPwlCurve(GLUnurbs *r, GLint count, INREAL array[], |
| GLint stride, GLenum type) |
| { |
| #ifdef DOWN_LOAD_NURBS |
| OTL_pwlCurve(tempTrim, count, array, stride, type); |
| #endif |
| |
| int realType; |
| switch(type) { |
| case GLU_MAP1_TRIM_2: |
| realType = N_P2D; |
| break; |
| case GLU_MAP1_TRIM_3: |
| realType = N_P2DR; |
| break; |
| default: |
| realType = type; |
| break; |
| } |
| r->pwlcurve(count, array, sizeof(INREAL) * stride, realType); |
| } |
| |
| void GLAPIENTRY |
| gluNurbsCurve(GLUnurbs *r, GLint nknots, INREAL knot[], GLint stride, |
| INREAL ctlarray[], GLint order, GLenum type) |
| { |
| #ifdef DOWN_LOAD_NURBS |
| OTL_nurbsCurve(tempTrim, nknots, knot, stride, ctlarray, order, type); |
| #endif |
| |
| int realType; |
| |
| switch(type) { |
| case GLU_MAP1_TRIM_2: |
| realType = N_P2D; |
| break; |
| case GLU_MAP1_TRIM_3: |
| realType = N_P2DR; |
| break; |
| default: |
| realType = type; |
| break; |
| } |
| |
| r->nurbscurve(nknots, knot, sizeof(INREAL) * stride, ctlarray, order, |
| realType); |
| } |
| |
| void GLAPIENTRY |
| gluNurbsSurface(GLUnurbs *r, GLint sknot_count, GLfloat *sknot, |
| GLint tknot_count, GLfloat *tknot, |
| GLint s_stride, GLint t_stride, |
| GLfloat *ctlarray, GLint sorder, GLint torder, |
| GLenum type) |
| { |
| #ifdef DOWN_LOAD_NURBS |
| { |
| int dimension; |
| switch(type){ |
| case GL_MAP2_VERTEX_3: |
| dimension = 3; |
| break; |
| case GL_MAP2_VERTEX_4: |
| dimension = 4; |
| break; |
| default: |
| fprintf(stderr, "error in glinterface.c++, type no implemented\n"); |
| exit(1); |
| } |
| tempNurb = nurbSurfMake(sknot_count, sknot, |
| tknot_count, tknot, |
| sorder, torder, |
| dimension, |
| ctlarray, |
| s_stride, t_stride); |
| |
| } |
| #endif |
| |
| r->nurbssurface(sknot_count, sknot, tknot_count, tknot, |
| sizeof(INREAL) * s_stride, sizeof(INREAL) * t_stride, |
| ctlarray, sorder, torder, type); |
| } |
| |
| void GLAPIENTRY |
| gluLoadSamplingMatrices(GLUnurbs *r, const GLfloat modelMatrix[16], |
| const GLfloat projMatrix[16], |
| const GLint viewport[4]) |
| { |
| r->useGLMatrices(modelMatrix, projMatrix, viewport); |
| } |
| |
| void GLAPIENTRY |
| gluNurbsProperty(GLUnurbs *r, GLenum property, GLfloat value) |
| { |
| GLfloat nurbsValue; |
| |
| switch (property) { |
| case GLU_AUTO_LOAD_MATRIX: |
| r->setautoloadmode(value); |
| return; |
| |
| case GLU_CULLING: |
| if (value != 0.0) { |
| nurbsValue = N_CULLINGON; |
| } else { |
| nurbsValue = N_NOCULLING; |
| } |
| r->setnurbsproperty(GL_MAP2_VERTEX_3, N_CULLING, nurbsValue); |
| r->setnurbsproperty(GL_MAP2_VERTEX_4, N_CULLING, nurbsValue); |
| r->setnurbsproperty(GL_MAP1_VERTEX_3, N_CULLING, nurbsValue); |
| r->setnurbsproperty(GL_MAP1_VERTEX_4, N_CULLING, nurbsValue); |
| return; |
| |
| case GLU_SAMPLING_METHOD: |
| if (value == GLU_PATH_LENGTH) { |
| nurbsValue = N_PATHLENGTH; |
| } else if (value == GLU_PARAMETRIC_ERROR) { |
| nurbsValue = N_PARAMETRICDISTANCE; |
| } else if (value == GLU_DOMAIN_DISTANCE) { |
| nurbsValue = N_DOMAINDISTANCE; |
| r->set_is_domain_distance_sampling(1); //optimzing untrimmed case |
| |
| } else if (value == GLU_OBJECT_PARAMETRIC_ERROR) { |
| nurbsValue = N_OBJECTSPACE_PARA; |
| r->setautoloadmode( 0.0 ); |
| r->setSamplingMatrixIdentity(); |
| } else if (value == GLU_OBJECT_PATH_LENGTH) { |
| nurbsValue = N_OBJECTSPACE_PATH; |
| r->setautoloadmode( 0.0 ); |
| r->setSamplingMatrixIdentity(); |
| } else { |
| r->postError(GLU_INVALID_VALUE); |
| return; |
| } |
| |
| r->setnurbsproperty(GL_MAP2_VERTEX_3, N_SAMPLINGMETHOD, nurbsValue); |
| r->setnurbsproperty(GL_MAP2_VERTEX_4, N_SAMPLINGMETHOD, nurbsValue); |
| r->setnurbsproperty(GL_MAP1_VERTEX_3, N_SAMPLINGMETHOD, nurbsValue); |
| r->setnurbsproperty(GL_MAP1_VERTEX_4, N_SAMPLINGMETHOD, nurbsValue); |
| return; |
| |
| case GLU_SAMPLING_TOLERANCE: |
| r->setnurbsproperty(GL_MAP2_VERTEX_3, N_PIXEL_TOLERANCE, value); |
| r->setnurbsproperty(GL_MAP2_VERTEX_4, N_PIXEL_TOLERANCE, value); |
| r->setnurbsproperty(GL_MAP1_VERTEX_3, N_PIXEL_TOLERANCE, value); |
| r->setnurbsproperty(GL_MAP1_VERTEX_4, N_PIXEL_TOLERANCE, value); |
| return; |
| |
| case GLU_PARAMETRIC_TOLERANCE: |
| r->setnurbsproperty(GL_MAP2_VERTEX_3, N_ERROR_TOLERANCE, value); |
| r->setnurbsproperty(GL_MAP2_VERTEX_4, N_ERROR_TOLERANCE, value); |
| r->setnurbsproperty(GL_MAP1_VERTEX_3, N_ERROR_TOLERANCE, value); |
| r->setnurbsproperty(GL_MAP1_VERTEX_4, N_ERROR_TOLERANCE, value); |
| return; |
| |
| |
| case GLU_DISPLAY_MODE: |
| |
| if (value == GLU_FILL) { |
| nurbsValue = N_FILL; |
| } else if (value == GLU_OUTLINE_POLYGON) { |
| nurbsValue = N_OUTLINE_POLY; |
| } else if (value == GLU_OUTLINE_PATCH) { |
| nurbsValue = N_OUTLINE_PATCH; |
| } else { |
| r->postError(GLU_INVALID_VALUE); |
| return; |
| } |
| r->setnurbsproperty(N_DISPLAY, nurbsValue); |
| |
| break; |
| |
| case GLU_U_STEP: |
| r->setnurbsproperty(GL_MAP1_VERTEX_3, N_S_STEPS, value); |
| r->setnurbsproperty(GL_MAP1_VERTEX_4, N_S_STEPS, value); |
| r->setnurbsproperty(GL_MAP2_VERTEX_3, N_S_STEPS, value); |
| r->setnurbsproperty(GL_MAP2_VERTEX_4, N_S_STEPS, value); |
| |
| //added for optimizing untrimmed case |
| r->set_domain_distance_u_rate(value); |
| break; |
| |
| case GLU_V_STEP: |
| r->setnurbsproperty(GL_MAP1_VERTEX_3, N_T_STEPS, value); |
| r->setnurbsproperty(GL_MAP1_VERTEX_4, N_T_STEPS, value); |
| r->setnurbsproperty(GL_MAP2_VERTEX_3, N_T_STEPS, value); |
| r->setnurbsproperty(GL_MAP2_VERTEX_4, N_T_STEPS, value); |
| |
| //added for optimizing untrimmed case |
| r->set_domain_distance_v_rate(value); |
| break; |
| |
| case GLU_NURBS_MODE: |
| if(value == GLU_NURBS_RENDERER) |
| r->put_callbackFlag(0); |
| else if(value == GLU_NURBS_TESSELLATOR) |
| r->put_callbackFlag(1); |
| else |
| r->postError(GLU_INVALID_ENUM); |
| break; |
| |
| default: |
| r->postError(GLU_INVALID_ENUM); |
| return; |
| } |
| } |
| |
| void GLAPIENTRY |
| gluGetNurbsProperty(GLUnurbs *r, GLenum property, GLfloat *value) |
| { |
| GLfloat nurbsValue; |
| |
| switch(property) { |
| case GLU_AUTO_LOAD_MATRIX: |
| if (r->getautoloadmode()) { |
| *value = GL_TRUE; |
| } else { |
| *value = GL_FALSE; |
| } |
| break; |
| case GLU_CULLING: |
| r->getnurbsproperty(GL_MAP2_VERTEX_3, N_CULLING, &nurbsValue); |
| if (nurbsValue == N_CULLINGON) { |
| *value = GL_TRUE; |
| } else { |
| *value = GL_FALSE; |
| } |
| break; |
| case GLU_SAMPLING_METHOD: |
| r->getnurbsproperty(GL_MAP2_VERTEX_3, N_SAMPLINGMETHOD, value); |
| if(*value == N_PATHLENGTH) |
| *value = GLU_PATH_LENGTH; |
| else if(*value == N_PARAMETRICDISTANCE) |
| *value = GLU_PARAMETRIC_ERROR; |
| else if(*value == N_DOMAINDISTANCE) |
| *value = GLU_DOMAIN_DISTANCE; |
| else if(*value == N_OBJECTSPACE_PATH) |
| *value = GLU_OBJECT_PATH_LENGTH; |
| else if(*value == N_OBJECTSPACE_PARA) |
| *value = GLU_OBJECT_PARAMETRIC_ERROR; |
| break; |
| case GLU_SAMPLING_TOLERANCE: |
| r->getnurbsproperty(GL_MAP2_VERTEX_3, N_PIXEL_TOLERANCE, value); |
| break; |
| case GLU_PARAMETRIC_TOLERANCE: |
| r->getnurbsproperty(GL_MAP2_VERTEX_3, N_ERROR_TOLERANCE, value); |
| break; |
| |
| case GLU_U_STEP: |
| r->getnurbsproperty(GL_MAP2_VERTEX_3, N_S_STEPS, value); |
| break; |
| case GLU_V_STEP: |
| r->getnurbsproperty(GL_MAP2_VERTEX_3, N_T_STEPS, value); |
| break; |
| case GLU_DISPLAY_MODE: |
| r->getnurbsproperty(N_DISPLAY, &nurbsValue); |
| if (nurbsValue == N_FILL) { |
| *value = GLU_FILL; |
| } else if (nurbsValue == N_OUTLINE_POLY) { |
| *value = GLU_OUTLINE_POLYGON; |
| } else { |
| *value = GLU_OUTLINE_PATCH; |
| } |
| break; |
| |
| case GLU_NURBS_MODE: |
| if(r->is_callback()) |
| *value = GLU_NURBS_TESSELLATOR; |
| else |
| *value = GLU_NURBS_RENDERER; |
| break; |
| |
| default: |
| r->postError(GLU_INVALID_ENUM); |
| return; |
| } |
| } |
| |
| extern "C" void GLAPIENTRY |
| gluNurbsCallback(GLUnurbs *r, GLenum which, _GLUfuncptr fn ) |
| { |
| switch (which) { |
| case GLU_NURBS_BEGIN: |
| case GLU_NURBS_END: |
| case GLU_NURBS_VERTEX: |
| case GLU_NURBS_NORMAL: |
| case GLU_NURBS_TEXTURE_COORD: |
| case GLU_NURBS_COLOR: |
| case GLU_NURBS_BEGIN_DATA: |
| case GLU_NURBS_END_DATA: |
| case GLU_NURBS_VERTEX_DATA: |
| case GLU_NURBS_NORMAL_DATA: |
| case GLU_NURBS_TEXTURE_COORD_DATA: |
| case GLU_NURBS_COLOR_DATA: |
| r->putSurfCallBack(which, fn); |
| break; |
| |
| case GLU_NURBS_ERROR: |
| r->errorCallback = (void (APIENTRY *)( GLenum e )) fn; |
| break; |
| default: |
| r->postError(GLU_INVALID_ENUM); |
| return; |
| } |
| } |
| |
| extern "C" |
| void GLAPIENTRY |
| gluNurbsCallbackDataEXT(GLUnurbs* r, void* userData) |
| { |
| r->setNurbsCallbackData(userData); |
| } |
| |
| extern "C" |
| void GLAPIENTRY |
| gluNurbsCallbackData(GLUnurbs* r, void* userData) |
| { |
| gluNurbsCallbackDataEXT(r,userData); |
| } |