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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#ifndef OSG_GLBeginEndAdapter
#define OSG_GLBeginEndAdapter 1
#include <osg/ref_ptr>
#include <osg/Array>
#include <osg/Matrixd>
#ifndef GL_TEXTURE0
#define GL_TEXTURE0 0x84C0
#endif
namespace osg {
// forward declare
class State;
/** A class adapting OpenGL 1.0 glBegin()/glEnd() style code to vertex array based code */
class OSG_EXPORT GLBeginEndAdapter
{
public:
GLBeginEndAdapter(State* state=0);
void setState(State* state) { _state = state; }
State* getState() { return _state; }
const State* getState() const { return _state; }
enum MatrixMode
{
APPLY_LOCAL_MATRICES_TO_VERTICES,
APPLY_LOCAL_MATRICES_TO_MODELVIEW
};
void setMatrixMode(MatrixMode mode) { _mode = mode; }
MatrixMode setMatrixMode() const { return _mode; }
void PushMatrix();
void PopMatrix();
void LoadIdentity();
void LoadMatrixd(const GLdouble* m);
void MultMatrixd(const GLdouble* m);
void Translatef(GLfloat x, GLfloat y, GLfloat z) { Translated(x,y,z); }
void Scalef(GLfloat x, GLfloat y, GLfloat z) { Scaled(x,y,z); }
void Rotatef(GLfloat angle, GLfloat x, GLfloat y, GLfloat z) { Rotated(angle,x,y,z); }
void Translated(GLdouble x, GLdouble y, GLdouble z);
void Scaled(GLdouble x, GLdouble y, GLdouble z);
void Rotated(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
void Vertex3f(GLfloat x, GLfloat y, GLfloat z);
void Vertex3fv(const GLfloat* v) { Vertex3f(v[0], v[1], v[2]); }
void Color4f(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha)
{
_colorAssigned = true;
_color.set(red,green,blue,alpha);
}
void Color4fv(const GLfloat* c) { Color4f(c[0], c[1], c[2], c[3]); }
void Color4ubv(const GLubyte* c) { const float div = 1.0f/255.0f; Color4f(float(c[0])*div, float(c[1])*div, float(c[2])*div, float(c[3])*div); }
void Normal3f(GLfloat x, GLfloat y, GLfloat z)
{
_normalAssigned = true;
_normal.set(x,y,z);
}
void Normal3fv(const GLfloat* n) { Normal3f(n[0], n[1], n[2]); }
void TexCoord1f(GLfloat x) { MultiTexCoord4f(GL_TEXTURE0, x, 0.0f, 0.0f, 1.0f); }
void TexCoord1fv(const GLfloat* tc) { MultiTexCoord4f(GL_TEXTURE0, tc[0], 0.0f, 0.0f, 1.0f); }
void TexCoord2f(GLfloat x, GLfloat y) { MultiTexCoord4f(GL_TEXTURE0, x, y, 0.0f, 1.0f); }
void TexCoord2fv(const GLfloat* tc) { MultiTexCoord4f(GL_TEXTURE0, tc[0], tc[1], 0.0f, 1.0f); }
void TexCoord3f(GLfloat x, GLfloat y, GLfloat z) { MultiTexCoord4f(GL_TEXTURE0, x, y, z, 1.0f); }
void TexCoord3fv(const GLfloat* tc) { MultiTexCoord4f(GL_TEXTURE0, tc[0], tc[1], tc[2], 1.0f); }
void TexCoord4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w) { MultiTexCoord4f(GL_TEXTURE0, x, y, z, w); }
void TexCoord4fv(const GLfloat* tc) { MultiTexCoord4f(GL_TEXTURE0, tc[0], tc[1], tc[2], tc[3]); }
void MultiTexCoord1f(GLenum target, GLfloat x) { MultiTexCoord4f(target, x, 0.0f, 0.0f, 1.0f); }
void MultiTexCoord1fv(GLenum target, const GLfloat* tc) { MultiTexCoord4f(target, tc[0], 0.0f, 0.0f, 1.0f); }
void MultiTexCoord2f(GLenum target, GLfloat x, GLfloat y) { MultiTexCoord4f(target, x, y, 0.0f, 1.0f); }
void MultiTexCoord2fv(GLenum target, const GLfloat* tc) { MultiTexCoord4f(target, tc[0],tc[1], 0.0f, 1.0f); }
void MultiTexCoord3f(GLenum target, GLfloat x, GLfloat y, GLfloat z) {MultiTexCoord4f(target, x, y, z, 1.0f); }
void MultiTexCoord3fv(GLenum target, const GLfloat* tc) { MultiTexCoord4f(target, tc[0], tc[1], tc[2], 1.0f); }
void MultiTexCoord4f(GLenum target, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
void MultiTexCoord4fv(GLenum target, const GLfloat* tc) { MultiTexCoord4f(target, tc[0], tc[1], tc[2], tc[3]); }
void VertexAttrib1f(GLuint unit, GLfloat x) { VertexAttrib4f(unit, x, 0.0f, 0.0f, 0.0f); }
void VertexAttrib1fv(GLuint unit, const GLfloat* tc) { VertexAttrib4f(unit, tc[0], 0.0f, 0.0f, 0.0f); }
void VertexAttrib2f(GLuint unit, GLfloat x, GLfloat y) { VertexAttrib4f(unit, x, y, 0.0f, 0.0f); }
void VertexAttrib2fv(GLuint unit, const GLfloat* tc) { VertexAttrib4f(unit, tc[0],tc[1], 0.0f, 0.0f); }
void VertexAttrib3f(GLuint unit, GLfloat x, GLfloat y, GLfloat z) {VertexAttrib4f(unit, x, y, z, 0.0f); }
void VertexAttrib3fv(GLuint unit, const GLfloat* tc) { VertexAttrib4f(unit, tc[0], tc[1], tc[2], 0.0f); }
void VertexAttrib4f(GLuint unit, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
void VertexAttrib4fv(GLuint unit, const GLfloat* tc) { VertexAttrib4f(unit, tc[0], tc[1], tc[2], tc[3]); }
void Begin(GLenum mode);
void End();
protected:
State* _state;
MatrixMode _mode;
typedef std::list<Matrixd> MatrixStack;
MatrixStack _matrixStack;
bool _normalAssigned;
osg::Vec3f _normal;
bool _colorAssigned;
osg::Vec4f _color;
osg::Vec3f _overallNormal;
osg::Vec4f _overallColor;
typedef std::vector<bool> AssignedList;
typedef std::vector<osg::Vec4f> VertexList;
AssignedList _texCoordAssignedList;
VertexList _texCoordList;
AssignedList _vertexAttribAssignedList;
VertexList _vertexAttribList;
typedef std::vector< osg::ref_ptr<Vec4Array> > VertexArrayList;
GLenum _primitiveMode;
osg::ref_ptr<osg::Vec3Array> _vertices;
osg::ref_ptr<osg::Vec3Array> _normals;
osg::ref_ptr<osg::Vec4Array> _colors;
VertexArrayList _texCoordsList;
VertexArrayList _vertexAttribsList;
};
}
#endif