| // This file is part of Eigen, a lightweight C++ template library |
| // for linear algebra. |
| // |
| // Copyright (C) 2010 Gael Guennebaud <gael.guennebaud@inria.fr> |
| // |
| // This Source Code Form is subject to the terms of the Mozilla |
| // Public License v. 2.0. If a copy of the MPL was not distributed |
| // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| |
| #ifndef EIGEN_OPENGL_MODULE_H |
| #define EIGEN_OPENGL_MODULE_H |
| |
| #include "../../Eigen/Geometry" |
| |
| #if defined(__APPLE_CC__) |
| #include <OpenGL/gl.h> |
| #else |
| #include <GL/gl.h> |
| #endif |
| |
| namespace Eigen { |
| |
| /** |
| * \defgroup OpenGLSUpport_Module OpenGL Support module |
| * |
| * This module provides wrapper functions for a couple of OpenGL functions |
| * which simplify the way to pass Eigen's object to openGL. |
| * Here is an example: |
| * |
| * \code |
| * // You need to add path_to_eigen/unsupported to your include path. |
| * #include <Eigen/OpenGLSupport> |
| * // ... |
| * Vector3f x, y; |
| * Matrix3f rot; |
| * |
| * glVertex(y + x * rot); |
| * |
| * Quaternion q; |
| * glRotate(q); |
| * |
| * // ... |
| * \endcode |
| * |
| */ |
| //@{ |
| |
| #define EIGEN_GL_FUNC_DECLARATION(FUNC) \ |
| namespace internal { \ |
| template <typename XprType, typename Scalar = typename XprType::Scalar, int Rows = XprType::RowsAtCompileTime, \ |
| int Cols = XprType::ColsAtCompileTime, \ |
| bool IsGLCompatible = bool(internal::evaluator<XprType>::Flags & LinearAccessBit) && \ |
| bool(XprType::Flags & DirectAccessBit) && \ |
| (XprType::IsVectorAtCompileTime || (XprType::Flags & RowMajorBit) == 0)> \ |
| struct EIGEN_CAT(EIGEN_CAT(gl_, FUNC), _impl); \ |
| \ |
| template <typename XprType, typename Scalar, int Rows, int Cols> \ |
| struct EIGEN_CAT(EIGEN_CAT(gl_, FUNC), _impl)<XprType, Scalar, Rows, Cols, false> { \ |
| inline static void run(const XprType& p) { \ |
| EIGEN_CAT(EIGEN_CAT(gl_, FUNC), _impl)<typename plain_matrix_type_column_major<XprType>::type>::run(p); \ |
| } \ |
| }; \ |
| } \ |
| \ |
| template <typename Derived> \ |
| inline void FUNC(const Eigen::DenseBase<Derived>& p) { \ |
| EIGEN_CAT(EIGEN_CAT(internal::gl_, FUNC), _impl)<Derived>::run(p.derived()); \ |
| } |
| |
| #define EIGEN_GL_FUNC_SPECIALIZATION_MAT(FUNC, SCALAR, ROWS, COLS, SUFFIX) \ |
| namespace internal { \ |
| template <typename XprType> \ |
| struct EIGEN_CAT(EIGEN_CAT(gl_, FUNC), _impl)<XprType, SCALAR, ROWS, COLS, true> { \ |
| inline static void run(const XprType& p) { FUNC##SUFFIX(p.data()); } \ |
| }; \ |
| } |
| |
| #define EIGEN_GL_FUNC_SPECIALIZATION_VEC(FUNC, SCALAR, SIZE, SUFFIX) \ |
| namespace internal { \ |
| template <typename XprType> \ |
| struct EIGEN_CAT(EIGEN_CAT(gl_, FUNC), _impl)<XprType, SCALAR, SIZE, 1, true> { \ |
| inline static void run(const XprType& p) { FUNC##SUFFIX(p.data()); } \ |
| }; \ |
| template <typename XprType> \ |
| struct EIGEN_CAT(EIGEN_CAT(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) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glVertex, short, 2, 2sv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glVertex, float, 2, 2fv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glVertex, double, 2, 2dv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glVertex, int, 3, 3iv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glVertex, short, 3, 3sv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glVertex, float, 3, 3fv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glVertex, double, 3, 3dv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glVertex, int, 4, 4iv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glVertex, short, 4, 4sv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glVertex, float, 4, 4fv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glVertex, double, 4, 4dv) |
| |
| EIGEN_GL_FUNC_DECLARATION(glTexCoord) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTexCoord, int, 2, 2iv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTexCoord, short, 2, 2sv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTexCoord, float, 2, 2fv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTexCoord, double, 2, 2dv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTexCoord, int, 3, 3iv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTexCoord, short, 3, 3sv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTexCoord, float, 3, 3fv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTexCoord, double, 3, 3dv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTexCoord, int, 4, 4iv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTexCoord, short, 4, 4sv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTexCoord, float, 4, 4fv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glTexCoord, double, 4, 4dv) |
| |
| EIGEN_GL_FUNC_DECLARATION(glColor) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glColor, int, 2, 2iv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glColor, short, 2, 2sv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glColor, float, 2, 2fv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glColor, double, 2, 2dv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glColor, int, 3, 3iv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glColor, short, 3, 3sv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glColor, float, 3, 3fv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glColor, double, 3, 3dv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glColor, int, 4, 4iv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glColor, short, 4, 4sv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glColor, float, 4, 4fv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glColor, double, 4, 4dv) |
| |
| EIGEN_GL_FUNC_DECLARATION(glNormal) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glNormal, int, 3, 3iv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glNormal, short, 3, 3sv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glNormal, float, 3, 3fv) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glNormal, double, 3, 3dv) |
| |
| inline void glScale2fv(const float* v) { glScalef(v[0], v[1], 1.f); } |
| inline void glScale2dv(const double* v) { glScaled(v[0], v[1], 1.0); } |
| inline void glScale3fv(const float* v) { glScalef(v[0], v[1], v[2]); } |
| inline void glScale3dv(const double* v) { glScaled(v[0], v[1], v[2]); } |
| |
| EIGEN_GL_FUNC_DECLARATION(glScale) |
| EIGEN_GL_FUNC_SPECIALIZATION_VEC(glScale, float, 2, 2fv) |
| 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) |
| |
| 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) |
| 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()); |
| } |
| |
| inline void glRotate(const Rotation2D<float>& rot) { glRotatef(rot.angle() * 180.f / float(EIGEN_PI), 0.f, 0.f, 1.f); } |
| inline void glRotate(const Rotation2D<double>& rot) { |
| glRotated(rot.angle() * 180.0 / double(EIGEN_PI), 0.0, 0.0, 1.0); |
| } |
| |
| template <typename Derived> |
| void glRotate(const RotationBase<Derived, 3>& rot) { |
| Transform<typename Derived::Scalar, 3, Projective> tr(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) \ |
| namespace internal { \ |
| template <typename XprType, typename Scalar = typename XprType::Scalar, int Rows = XprType::RowsAtCompileTime, \ |
| int Cols = XprType::ColsAtCompileTime, \ |
| bool IsGLCompatible = bool(internal::evaluator<XprType>::Flags & LinearAccessBit) && \ |
| bool(XprType::Flags & DirectAccessBit) && \ |
| (XprType::IsVectorAtCompileTime || (XprType::Flags & RowMajorBit) == 0)> \ |
| struct EIGEN_CAT(EIGEN_CAT(gl_, FUNC), _impl); \ |
| \ |
| template <typename XprType, typename Scalar, int Rows, int Cols> \ |
| struct EIGEN_CAT(EIGEN_CAT(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(gl_, FUNC), _impl)<typename 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(internal::gl_, FUNC), _impl)<Derived>::run(a, p.derived()); \ |
| } |
| |
| #define EIGEN_GL_FUNC1_SPECIALIZATION_MAT(FUNC, ARG1, CONST, SCALAR, ROWS, COLS, SUFFIX) \ |
| namespace internal { \ |
| template <typename XprType> \ |
| struct EIGEN_CAT(EIGEN_CAT(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) \ |
| namespace internal { \ |
| template <typename XprType> \ |
| struct EIGEN_CAT(EIGEN_CAT(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(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) |
| |
| // glUniform API |
| |
| #ifdef GL_VERSION_2_0 |
| |
| inline void glUniform2fv_ei(GLint loc, const float* v) { glUniform2fv(loc, 1, v); } |
| inline void glUniform2iv_ei(GLint loc, const int* v) { glUniform2iv(loc, 1, v); } |
| |
| inline void glUniform3fv_ei(GLint loc, const float* v) { glUniform3fv(loc, 1, v); } |
| inline void glUniform3iv_ei(GLint loc, const int* v) { glUniform3iv(loc, 1, v); } |
| |
| inline void glUniform4fv_ei(GLint loc, const float* v) { glUniform4fv(loc, 1, v); } |
| inline void glUniform4iv_ei(GLint loc, const int* v) { glUniform4iv(loc, 1, v); } |
| |
| inline void glUniformMatrix2fv_ei(GLint loc, const float* v) { glUniformMatrix2fv(loc, 1, false, v); } |
| inline void glUniformMatrix3fv_ei(GLint loc, const float* v) { glUniformMatrix3fv(loc, 1, false, v); } |
| inline void glUniformMatrix4fv_ei(GLint loc, const float* v) { glUniformMatrix4fv(loc, 1, false, v); } |
| |
| EIGEN_GL_FUNC1_DECLARATION(glUniform, GLint, const) |
| EIGEN_GL_FUNC1_SPECIALIZATION_VEC(glUniform, GLint, const, float, 2, 2fv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_VEC(glUniform, GLint, const, int, 2, 2iv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_VEC(glUniform, GLint, const, float, 3, 3fv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_VEC(glUniform, GLint, const, int, 3, 3iv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_VEC(glUniform, GLint, const, float, 4, 4fv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_VEC(glUniform, GLint, const, int, 4, 4iv_ei) |
| |
| EIGEN_GL_FUNC1_SPECIALIZATION_MAT(glUniform, GLint, const, float, 2, 2, Matrix2fv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_MAT(glUniform, GLint, const, float, 3, 3, Matrix3fv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_MAT(glUniform, GLint, const, float, 4, 4, Matrix4fv_ei) |
| |
| #endif |
| |
| #ifdef GL_VERSION_2_1 |
| |
| inline void glUniformMatrix2x3fv_ei(GLint loc, const float* v) { glUniformMatrix2x3fv(loc, 1, false, v); } |
| inline void glUniformMatrix3x2fv_ei(GLint loc, const float* v) { glUniformMatrix3x2fv(loc, 1, false, v); } |
| inline void glUniformMatrix2x4fv_ei(GLint loc, const float* v) { glUniformMatrix2x4fv(loc, 1, false, v); } |
| inline void glUniformMatrix4x2fv_ei(GLint loc, const float* v) { glUniformMatrix4x2fv(loc, 1, false, v); } |
| inline void glUniformMatrix3x4fv_ei(GLint loc, const float* v) { glUniformMatrix3x4fv(loc, 1, false, v); } |
| inline void glUniformMatrix4x3fv_ei(GLint loc, const float* v) { glUniformMatrix4x3fv(loc, 1, false, v); } |
| |
| EIGEN_GL_FUNC1_SPECIALIZATION_MAT(glUniform, GLint, const, float, 2, 3, Matrix2x3fv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_MAT(glUniform, GLint, const, float, 3, 2, Matrix3x2fv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_MAT(glUniform, GLint, const, float, 2, 4, Matrix2x4fv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_MAT(glUniform, GLint, const, float, 4, 2, Matrix4x2fv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_MAT(glUniform, GLint, const, float, 3, 4, Matrix3x4fv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_MAT(glUniform, GLint, const, float, 4, 3, Matrix4x3fv_ei) |
| |
| #endif |
| |
| #ifdef GL_VERSION_3_0 |
| |
| inline void glUniform2uiv_ei(GLint loc, const unsigned int* v) { glUniform2uiv(loc, 1, v); } |
| inline void glUniform3uiv_ei(GLint loc, const unsigned int* v) { glUniform3uiv(loc, 1, v); } |
| inline void glUniform4uiv_ei(GLint loc, const unsigned int* v) { glUniform4uiv(loc, 1, v); } |
| |
| EIGEN_GL_FUNC1_SPECIALIZATION_VEC(glUniform, GLint, const, unsigned int, 2, 2uiv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_VEC(glUniform, GLint, const, unsigned int, 3, 3uiv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_VEC(glUniform, GLint, const, unsigned int, 4, 4uiv_ei) |
| |
| #endif |
| |
| #ifdef GL_ARB_gpu_shader_fp64 |
| inline void glUniform2dv_ei(GLint loc, const double* v) { glUniform2dv(loc, 1, v); } |
| inline void glUniform3dv_ei(GLint loc, const double* v) { glUniform3dv(loc, 1, v); } |
| inline void glUniform4dv_ei(GLint loc, const double* v) { glUniform4dv(loc, 1, v); } |
| |
| EIGEN_GL_FUNC1_SPECIALIZATION_VEC(glUniform, GLint, const, double, 2, 2dv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_VEC(glUniform, GLint, const, double, 3, 3dv_ei) |
| EIGEN_GL_FUNC1_SPECIALIZATION_VEC(glUniform, GLint, const, double, 4, 4dv_ei) |
| #endif |
| |
| //@} |
| |
| } // namespace Eigen |
| |
| #endif // EIGEN_OPENGL_MODULE_H |
