pelya
141 lines
4.4 KiB
C++
141 lines
4.4 KiB
C++
/*
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* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
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* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice including the dates of first publication and
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* either this permission notice or a reference to
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* http://oss.sgi.com/projects/FreeB/
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* shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of Silicon Graphics, Inc.
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* shall not be used in advertising or otherwise to promote the sale, use or
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* other dealings in this Software without prior written authorization from
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* Silicon Graphics, Inc.
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*/
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/*
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*
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* OpenGL ES 1.0 CM port of GLU by Mike Gorchak <mike@malva.ua>
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*/
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#ifndef __gluglrenderer_h_
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#define __gluglrenderer_h_
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#include "glues.h"
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#include "nurbstess.h"
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#include "glsurfeval.h"
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#include "glcurveval.h"
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extern "C"
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{
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typedef void (APIENTRY* errorCallbackType)(GLenum);
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}
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class GLUnurbs: public NurbsTessellator
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{
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public:
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GLUnurbs(void);
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void loadGLMatrices(void);
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void useGLMatrices(const GLfloat modelMatrix[16], const GLfloat projMatrix[16],
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const GLint viewport[4]);
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void setSamplingMatrixIdentity(void);
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void errorHandler(int);
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void bgnrender(void);
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void endrender(void);
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void setautoloadmode(INREAL value)
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{
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if (value)
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{
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autoloadmode=GL_TRUE;
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}
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else
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{
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autoloadmode=GL_FALSE;
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}
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}
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GLboolean getautoloadmode(void) { return autoloadmode; }
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errorCallbackType errorCallback;
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void postError(int which)
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{
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if (errorCallback)
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{
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(errorCallback)((GLenum)which);
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}
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}
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#ifdef _WIN32
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void putSurfCallBack(GLenum which, void (APIENTRY* fn)())
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#else
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void putSurfCallBack(GLenum which, _GLUfuncptr fn)
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#endif
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{
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curveEvaluator.putCallBack(which, fn);
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surfaceEvaluator.putCallBack(which, fn);
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}
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int get_vertices_call_back()
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{
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return surfaceEvaluator.get_vertices_call_back();
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}
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void put_vertices_call_back(int flag)
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{
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surfaceEvaluator.put_vertices_call_back(flag);
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}
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int get_callback_auto_normal()
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{
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return surfaceEvaluator.get_callback_auto_normal();
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}
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void put_callback_auto_normal(int flag)
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{
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surfaceEvaluator.put_callback_auto_normal(flag);
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}
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void setNurbsCallbackData(void* userData)
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{
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curveEvaluator.set_callback_userData(userData);
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surfaceEvaluator.set_callback_userData(userData);
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}
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// NEWCALLBACK
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int is_callback()
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{
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return callbackFlag;
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}
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void put_callbackFlag(int flag)
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{
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callbackFlag=flag;
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surfaceEvaluator.put_vertices_call_back(flag);
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curveEvaluator.put_vertices_call_back(flag);
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}
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private:
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GLboolean autoloadmode;
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OpenGLSurfaceEvaluator surfaceEvaluator;
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OpenGLCurveEvaluator curveEvaluator;
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void loadSamplingMatrix(const GLfloat vmat[4][4], const GLint viewport[4]);
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void loadCullingMatrix(GLfloat vmat[4][4]);
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static void grabGLMatrix(GLfloat vmat[4][4]);
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static void transform4d(GLfloat A[4], GLfloat B[4], GLfloat mat[4][4]);
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static void multmatrix4d(GLfloat n[4][4], const GLfloat left[4][4], const GLfloat right[4][4]);
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int callbackFlag;
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};
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#endif /* __gluglrenderer_h_ */
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