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Diffstat (limited to 'mesalib/src/glu/sgi/libnurbs/interface/glcurveval.h')
| -rw-r--r-- | mesalib/src/glu/sgi/libnurbs/interface/glcurveval.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/mesalib/src/glu/sgi/libnurbs/interface/glcurveval.h b/mesalib/src/glu/sgi/libnurbs/interface/glcurveval.h new file mode 100644 index 000000000..8fa493034 --- /dev/null +++ b/mesalib/src/glu/sgi/libnurbs/interface/glcurveval.h @@ -0,0 +1,157 @@ +/* + * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) + * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice including the dates of first publication and + * either this permission notice or a reference to + * http://oss.sgi.com/projects/FreeB/ + * shall be included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF + * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Except as contained in this notice, the name of Silicon Graphics, Inc. + * shall not be used in advertising or otherwise to promote the sale, use or + * other dealings in this Software without prior written authorization from + * Silicon Graphics, Inc. + */ + +/* + * glcurveval.h + * + */ + +#ifndef __gluglcurveval_h_ +#define __gluglcurveval_h_ + +#include "gluos.h" +#include <GL/gl.h> +#include <GL/glu.h> +#include "basiccrveval.h" + +class CurveMap; + +/*for internal evaluator callback stuff*/ +#ifndef IN_MAX_BEZIER_ORDER +#define IN_MAX_BEZIER_ORDER 40 /*XXX should be bigger than machine order*/ +#endif + +#ifndef IN_MAX_DIMENSION +#define IN_MAX_DIMENSION 4 +#endif + +typedef struct curveEvalMachine{ + REAL uprime; //cached previously evaluated uprime + int k; //the dimension + REAL u1; + REAL u2; + int ustride; + int uorder; + REAL ctlpoints[IN_MAX_BEZIER_ORDER*IN_MAX_DIMENSION]; + REAL ucoeff[IN_MAX_BEZIER_ORDER];//cache the polynomial values +} curveEvalMachine; + +class OpenGLCurveEvaluator : public BasicCurveEvaluator { +public: + OpenGLCurveEvaluator(void); + virtual ~OpenGLCurveEvaluator(void); + void range1f(long, REAL *, REAL *); + void domain1f(REAL, REAL); + void addMap(CurveMap *); + + void enable(long); + void disable(long); + void bgnmap1f(long); + void map1f(long, REAL, REAL, long, long, REAL *); + void mapgrid1f(long, REAL, REAL); + void mapmesh1f(long, long, long); + void evalpoint1i(long); + void evalcoord1f(long, REAL); + void endmap1f(void); + + void bgnline(void); + void endline(void); + + void put_vertices_call_back(int flag) + { + output_triangles = flag; + } +#ifdef _WIN32 + void putCallBack(GLenum which, void (GLAPIENTRY *fn)() ); +#else + void putCallBack(GLenum which, _GLUfuncptr fn ); +#endif + void set_callback_userData(void *data) + { + userData = data; + } + +/*------------------begin for curveEvalMachine------------*/ +curveEvalMachine em_vertex; +curveEvalMachine em_normal; +curveEvalMachine em_color; +curveEvalMachine em_texcoord; +int vertex_flag; //whether there is a vertex map or not +int normal_flag; //whether there is a normal map or not +int color_flag; //whether there is a color map or not +int texcoord_flag; //whether there is a texture map or not + +REAL global_grid_u0; +REAL global_grid_u1; +int global_grid_nu; + +void inMap1f(int which, //0: vert, 1: norm, 2: color, 3: tex + int dimension, + REAL ulower, + REAL uupper, + int ustride, + int uorder, + REAL *ctlpoints); + +void inPreEvaluate(int order, REAL vprime, REAL *coeff); +void inDoDomain1(curveEvalMachine *em, REAL u, REAL *retPoint); +void inDoEvalCoord1(REAL u); +void inMapMesh1f(int umin, int umax); + +void (GLAPIENTRY *beginCallBackN) (GLenum type); +void (GLAPIENTRY *endCallBackN) (void); +void (GLAPIENTRY *vertexCallBackN) (const GLfloat *vert); +void (GLAPIENTRY *normalCallBackN) (const GLfloat *normal); +void (GLAPIENTRY *colorCallBackN) (const GLfloat *color); +void (GLAPIENTRY *texcoordCallBackN) (const GLfloat *texcoord); + +void (GLAPIENTRY *beginCallBackData) (GLenum type, void* data); +void (GLAPIENTRY *endCallBackData) (void* data); +void (GLAPIENTRY *vertexCallBackData) (const GLfloat *vert, void* data); +void (GLAPIENTRY *normalCallBackData) (const GLfloat *normal, void* data); +void (GLAPIENTRY *colorCallBackData) (const GLfloat *color, void* data); +void (GLAPIENTRY *texcoordCallBackData) (const GLfloat *texcoord, void* data); + +void* userData; //the opaque pointer for Data callback functions +void beginCallBack(GLenum type, void* data); +void endCallBack(void* data); +void vertexCallBack(const GLfloat *vert, void *data); +void normalCallBack(const GLfloat *normal, void* data); +void colorCallBack(const GLfloat *color, void* data); +void texcoordCallBack(const GLfloat *texcoord, void* data); + + +/*------------------end for curveEvalMachine------------*/ + +private: + int output_triangles; //true 1; false 0 +}; + +#endif /* __gluglcurveval_h_ */ |