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extend OpenGL support module with true unit tests and support for Transform, Translation, etc.

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This commit is contained in:
Gael Guennebaud 2010-10-06 13:28:13 +02:00
parent b5f32830fd
commit e3d01f85b2
2 changed files with 156 additions and 12 deletions
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66
unsupported/Eigen/OpenGLSupport
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@ -89,6 +89,7 @@ template<typename Derived> inline void FUNC(const Eigen::DenseBase<Derived>& p)
template< typename XprType> struct EIGEN_CAT(EIGEN_CAT(ei_gl_,FUNC),_impl)<XprType, SCALAR, 1, SIZE, true> { \
inline static void run(const XprType& p) { FUNC##SUFFIX(p.data()); } \
};
EIGEN_GL_FUNC_DECLARATION (glVertex)
EIGEN_GL_FUNC_SPECIALIZATION_VEC(glVertex,int, 2,2iv)
@ -149,10 +150,12 @@ EIGEN_GL_FUNC_SPECIALIZATION_VEC(glScale,double, 2,2dv)
EIGEN_GL_FUNC_SPECIALIZATION_VEC(glScale,float, 3,3fv)
EIGEN_GL_FUNC_SPECIALIZATION_VEC(glScale,double, 3,3dv)
inline void glTranslate2fv(const float* v) { glScalef(v[0], v[1], 1.f); }
inline void glTranslate2dv(const double* v) { glScaled(v[0], v[1], 1.0); }
inline void glTranslate3fv(const float* v) { glScalef(v[0], v[1], v[2]); }
inline void glTranslate3dv(const double* v) { glScaled(v[0], v[1], v[2]); }
template<typename Scalar> void glScale(const UniformScaling<Scalar>& s) { glScale(Matrix<Scalar,3,1>::Constant(s.factor())); }
inline void glTranslate2fv(const float* v) { glTranslatef(v[0], v[1], 0.f); }
inline void glTranslate2dv(const double* v) { glTranslated(v[0], v[1], 0.0); }
inline void glTranslate3fv(const float* v) { glTranslatef(v[0], v[1], v[2]); }
inline void glTranslate3dv(const double* v) { glTranslated(v[0], v[1], v[2]); }
EIGEN_GL_FUNC_DECLARATION (glTranslate)
EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTranslate,float, 2,2fv)
@ -160,14 +163,25 @@ EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTranslate,double, 2,2dv)
EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTranslate,float, 3,3fv)
EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTranslate,double, 3,3dv)
template<typename Scalar> void glTranslate(const Translation<Scalar,2>& t) { glTranslate(t.vector()); }
template<typename Scalar> void glTranslate(const Translation<Scalar,3>& t) { glTranslate(t.vector()); }
EIGEN_GL_FUNC_DECLARATION (glMultMatrix)
EIGEN_GL_FUNC_SPECIALIZATION_MAT(glMultMatrix,float, 4,4,f)
EIGEN_GL_FUNC_SPECIALIZATION_MAT(glMultMatrix,double, 4,4,d)
template<typename Scalar> void glMultMatrix(const Transform<Scalar,3,Affine>& t) { glMultMatrix(t.matrix()); }
template<typename Scalar> void glMultMatrix(const Transform<Scalar,3,Projective>& t) { glMultMatrix(t.matrix()); }
template<typename Scalar> void glMultMatrix(const Transform<Scalar,3,AffineCompact>& t) { glMultMatrix(Transform<Scalar,3,Affine>(t).matrix()); }
EIGEN_GL_FUNC_DECLARATION (glLoadMatrix)
EIGEN_GL_FUNC_SPECIALIZATION_MAT(glLoadMatrix,float, 4,4,f)
EIGEN_GL_FUNC_SPECIALIZATION_MAT(glLoadMatrix,double, 4,4,d)
template<typename Scalar> void glLoadMatrix(const Transform<Scalar,3,Affine>& t) { glLoadMatrix(t.matrix()); }
template<typename Scalar> void glLoadMatrix(const Transform<Scalar,3,Projective>& t) { glLoadMatrix(t.matrix()); }
template<typename Scalar> void glLoadMatrix(const Transform<Scalar,3,AffineCompact>& t) { glLoadMatrix(Transform<Scalar,3,Affine>(t).matrix()); }
void glRotate(const Rotation2D<float>& rot)
{
glRotatef(rot.angle()*180.f/float(M_PI), 0.f, 0.f, 1.f);
@ -183,6 +197,50 @@ template<typename Derived> void glRotate(const RotationBase<Derived,3>& rot)
glMultMatrix(tr.matrix());
}
#define EIGEN_GL_MAKE_CONST_const const
#define EIGEN_GL_MAKE_CONST__
#define EIGEN_GL_EVAL(X) X
#define EIGEN_GL_FUNC1_DECLARATION(FUNC,ARG1,CONST) \
template< typename XprType, \
typename Scalar = typename XprType::Scalar, \
int Rows = XprType::RowsAtCompileTime, \
int Cols = XprType::ColsAtCompileTime, \
bool IsGLCompatible = bool(XprType::Flags&LinearAccessBit) \
&& bool(XprType::Flags&DirectAccessBit) \
&& (XprType::IsVectorAtCompileTime || (XprType::Flags&RowMajorBit)==0)> \
struct EIGEN_CAT(EIGEN_CAT(ei_gl_,FUNC),_impl); \
\
template<typename XprType, typename Scalar, int Rows, int Cols> \
struct EIGEN_CAT(EIGEN_CAT(ei_gl_,FUNC),_impl)<XprType,Scalar,Rows,Cols,false> { \
inline static void run(ARG1 a,EIGEN_GL_EVAL(EIGEN_GL_MAKE_CONST_##CONST) XprType& p) { \
EIGEN_CAT(EIGEN_CAT(ei_gl_,FUNC),_impl)<typename ei_plain_matrix_type_column_major<XprType>::type>::run(a,p); } \
}; \
\
template<typename Derived> inline void FUNC(ARG1 a,EIGEN_GL_EVAL(EIGEN_GL_MAKE_CONST_##CONST) Eigen::DenseBase<Derived>& p) { \
EIGEN_CAT(EIGEN_CAT(ei_gl_,FUNC),_impl)<Derived>::run(a,p.derived()); \
}
#define EIGEN_GL_FUNC1_SPECIALIZATION_MAT(FUNC,ARG1,CONST,SCALAR,ROWS,COLS,SUFFIX) \
template< typename XprType> struct EIGEN_CAT(EIGEN_CAT(ei_gl_,FUNC),_impl)<XprType, SCALAR, ROWS, COLS, true> { \
inline static void run(ARG1 a, EIGEN_GL_EVAL(EIGEN_GL_MAKE_CONST_##CONST) XprType& p) { FUNC##SUFFIX(a,p.data()); } \
};
#define EIGEN_GL_FUNC1_SPECIALIZATION_VEC(FUNC,ARG1,CONST,SCALAR,SIZE,SUFFIX) \
template< typename XprType> struct EIGEN_CAT(EIGEN_CAT(ei_gl_,FUNC),_impl)<XprType, SCALAR, SIZE, 1, true> { \
inline static void run(ARG1 a, EIGEN_GL_EVAL(EIGEN_GL_MAKE_CONST_##CONST) XprType& p) { FUNC##SUFFIX(a,p.data()); } \
}; \
template< typename XprType> struct EIGEN_CAT(EIGEN_CAT(ei_gl_,FUNC),_impl)<XprType, SCALAR, 1, SIZE, true> { \
inline static void run(ARG1 a, EIGEN_GL_EVAL(EIGEN_GL_MAKE_CONST_##CONST) XprType& p) { FUNC##SUFFIX(a,p.data()); } \
};
EIGEN_GL_FUNC1_DECLARATION (glGet,GLenum,_)
EIGEN_GL_FUNC1_SPECIALIZATION_MAT(glGet,GLenum,_,float, 4,4,Floatv)
EIGEN_GL_FUNC1_SPECIALIZATION_MAT(glGet,GLenum,_,double, 4,4,Doublev)
//@}
}

102
unsupported/test/openglsupport.cpp
View File

@ -22,14 +22,30 @@
// License and a copy of the GNU General Public License along with
// Eigen. If not, see <http://www.gnu.org/licenses/>.
#include <main.h>
#include <iostream>
#include <GL/glut.h>
#include <Eigen/OpenGLSupport>
using namespace Eigen;
int main(int argc, char **argv)
#define VERIFY_MATRIX(CODE,REF) { \
glLoadIdentity(); \
CODE; \
Matrix4f m; m.setZero(); \
glGet(GL_MODELVIEW_MATRIX, m); \
if(!(REF).cast<float>().isApprox(m)) { \
std::cerr << "Expected:\n" << ((REF).cast<float>()) << "\n" << "got\n" << m << "\n\n"; \
} \
VERIFY_IS_APPROX((REF).cast<float>(), m); \
}
void test_openglsupport()
{
glutInit(&argc, argv);
int argc = 0;
glutInit(&argc, 0);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowPosition (0,0);
glutInitWindowSize(10, 10);
@ -50,12 +66,82 @@ int main(int argc, char **argv)
glEnd();
Quaterniond qd;
glRotate(qd);
// 4x4 matrices
Matrix4f mf44; mf44.setRandom();
VERIFY_MATRIX(glLoadMatrix(mf44), mf44);
VERIFY_MATRIX(glMultMatrix(mf44), mf44);
Matrix4d md44; md44.setRandom();
VERIFY_MATRIX(glLoadMatrix(md44), md44);
VERIFY_MATRIX(glMultMatrix(md44), md44);
Matrix4f m44;
glLoadMatrix(m44);
glMultMatrix(m44);
// Quaternion
Quaterniond qd(AngleAxisd(ei_random<double>(), Vector3d::Random()));
VERIFY_MATRIX(glRotate(qd), Projective3d(qd).matrix());
Quaternionf qf(AngleAxisf(ei_random<double>(), Vector3f::Random()));
VERIFY_MATRIX(glRotate(qf), Projective3f(qf).matrix());
// 3D Transform
Transform<float,3,AffineCompact> acf3; acf3.matrix().setRandom();
VERIFY_MATRIX(glLoadMatrix(acf3), Projective3f(acf3).matrix());
VERIFY_MATRIX(glMultMatrix(acf3), Projective3f(acf3).matrix());
Transform<float,3,Affine> af3(acf3);
VERIFY_MATRIX(glLoadMatrix(af3), Projective3f(af3).matrix());
VERIFY_MATRIX(glMultMatrix(af3), Projective3f(af3).matrix());
Transform<float,3,Projective> pf3; pf3.matrix().setRandom();
VERIFY_MATRIX(glLoadMatrix(pf3), Projective3f(pf3).matrix());
VERIFY_MATRIX(glMultMatrix(pf3), Projective3f(pf3).matrix());
Transform<double,3,AffineCompact> acd3; acd3.matrix().setRandom();
VERIFY_MATRIX(glLoadMatrix(acd3), Projective3d(acd3).matrix());
VERIFY_MATRIX(glMultMatrix(acd3), Projective3d(acd3).matrix());
Transform<double,3,Affine> ad3(acd3);
VERIFY_MATRIX(glLoadMatrix(ad3), Projective3d(ad3).matrix());
VERIFY_MATRIX(glMultMatrix(ad3), Projective3d(ad3).matrix());
Transform<double,3,Projective> pd3; pd3.matrix().setRandom();
VERIFY_MATRIX(glLoadMatrix(pd3), Projective3d(pd3).matrix());
VERIFY_MATRIX(glMultMatrix(pd3), Projective3d(pd3).matrix());
// translations (2D and 3D)
{
Vector2f vf2; vf2.setRandom(); Vector3f vf23; vf23 << vf2, 0;
VERIFY_MATRIX(glTranslate(vf2), Projective3f(Translation3f(vf23)).matrix());
Vector2d vd2; vd2.setRandom(); Vector3d vd23; vd23 << vd2, 0;
VERIFY_MATRIX(glTranslate(vd2), Projective3d(Translation3d(vd23)).matrix());
Vector3f vf3; vf3.setRandom();
VERIFY_MATRIX(glTranslate(vf3), Projective3f(Translation3f(vf3)).matrix());
Vector3d vd3; vd3.setRandom();
VERIFY_MATRIX(glTranslate(vd3), Projective3d(Translation3d(vd3)).matrix());
Translation<float,3> tf3; tf3.vector().setRandom();
VERIFY_MATRIX(glTranslate(tf3), Projective3f(tf3).matrix());
Translation<double,3> td3; td3.vector().setRandom();
VERIFY_MATRIX(glTranslate(td3), Projective3d(td3).matrix());
}
// scaling (2D and 3D)
{
Vector2f vf2; vf2.setRandom(); Vector3f vf23; vf23 << vf2, 1;
VERIFY_MATRIX(glScale(vf2), Projective3f(Scaling(vf23)).matrix());
Vector2d vd2; vd2.setRandom(); Vector3d vd23; vd23 << vd2, 1;
VERIFY_MATRIX(glScale(vd2), Projective3d(Scaling(vd23)).matrix());
Vector3f vf3; vf3.setRandom();
VERIFY_MATRIX(glScale(vf3), Projective3f(Scaling(vf3)).matrix());
Vector3d vd3; vd3.setRandom();
VERIFY_MATRIX(glScale(vd3), Projective3d(Scaling(vd3)).matrix());
UniformScaling<float> usf(ei_random<float>());
VERIFY_MATRIX(glScale(usf), Projective3f(usf).matrix());
UniformScaling<double> usd(ei_random<double>());
VERIFY_MATRIX(glScale(usd), Projective3d(usd).matrix());
}
return 0;
}