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Diffstat (limited to 'src/glu/sgi/libnurbs/interface/glinterface.cc')
| -rw-r--r-- | src/glu/sgi/libnurbs/interface/glinterface.cc | 471 |
1 files changed, 471 insertions, 0 deletions
diff --git a/src/glu/sgi/libnurbs/interface/glinterface.cc b/src/glu/sgi/libnurbs/interface/glinterface.cc new file mode 100644 index 00000000000..f39a3921767 --- /dev/null +++ b/src/glu/sgi/libnurbs/interface/glinterface.cc @@ -0,0 +1,471 @@ +/* +** 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: 2001/03/17 00:25:40 $ $Revision: 1.1 $ +*/ +/* +** $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/interface/glinterface.cc,v 1.1 2001/03/17 00:25:40 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, GLvoid (*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, (GLvoid (*)(...))fn); + break; + + case GLU_NURBS_ERROR: + r->errorCallback = (void (*)( GLenum )) 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); +} |