81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
//
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU General Public License as
|
|
// published by the Free Software Foundation; either version 2 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program 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 GNU
|
|
// General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
//
|
|
|
|
#pragma once
|
|
|
|
#include <boost/utility.hpp>
|
|
#include <stack>
|
|
|
|
#if defined (SG_MAC)
|
|
#include <OpenGL/gl.h>
|
|
#elif defined (_GLES2)
|
|
#include <GLES2/gl2.h>
|
|
#else
|
|
#include <GL/glew.h> // Must be included before <GL/gl.h>
|
|
#include <GL/gl.h>
|
|
#endif
|
|
|
|
|
|
class GL_utils : private boost::noncopyable {
|
|
public:
|
|
static GL_utils& instance ();
|
|
|
|
enum GLenum_Mode {
|
|
GL_UTILS_MODELVIEW,
|
|
GL_UTILS_PROJECTION,
|
|
GL_UTILS_TEXTURE,
|
|
GL_UTILS_COLOR,
|
|
GL_UTILS_LAST,
|
|
GL_UTILS_UNSET
|
|
};
|
|
|
|
GLuint load_program (const char *vert_shader_src, const char *frag_shader_src);
|
|
|
|
void glMatrixMode (const GL_utils::GLenum_Mode mode);
|
|
void glLoadIdentity ();
|
|
void gluOrtho2D (const GLfloat left,
|
|
const GLfloat right,
|
|
const GLfloat bottom,
|
|
const GLfloat top);
|
|
void glOrtho (const GLfloat left,
|
|
const GLfloat right,
|
|
const GLfloat bottom,
|
|
const GLfloat top,
|
|
const GLfloat nearVal,
|
|
const GLfloat farVal);
|
|
void glTranslatef (const GLfloat x, const GLfloat y, const GLfloat z);
|
|
void glRotatef (const GLfloat angle, const GLfloat x, const GLfloat y, const GLfloat z);
|
|
void glScalef (const GLfloat x, const GLfloat y, const GLfloat z);
|
|
// C' = C X M
|
|
void glMultMatrixf (const GLfloat m[4][4]);
|
|
void glPushMatrix ();
|
|
void glPopMatrix ();
|
|
GLfloat* get_top_matrix (const GL_utils::GLenum_Mode mode);
|
|
void Debug (const GL_utils::GLenum_Mode mode) const;
|
|
|
|
private:
|
|
explicit GL_utils ();
|
|
virtual ~GL_utils ();
|
|
|
|
GLuint load_shader (GLenum type, const char *shader_src);
|
|
|
|
typedef struct {
|
|
GLfloat m[4][4];
|
|
} Matrix;
|
|
|
|
std::stack <Matrix> m_Matrix[GL_UTILS_LAST];
|
|
GLenum_Mode m_Current_Matrix_Mode;
|
|
};
|