flightgear/utils/fgpanel/GLES_utils.hxx
2022-10-20 20:29:11 +08:00

78 lines
2.2 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 <string>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
class GLES_utils : private boost::noncopyable {
public:
static GLES_utils& instance ();
void init (const std::string &title);
void register_display_func (void (*display_func) ());
void register_idle_func (void (*idle_func) ());
void register_keyboard_func (void (*keyboard_func) (unsigned char, int, int));
void register_reshape_func (void (*reshape_func) (int, int));
void main_loop ();
private:
explicit GLES_utils ();
virtual ~GLES_utils ();
typedef struct {
#ifdef _RPI
EGL_DISPMANX_WINDOW_T native_window;
#else
EGLNativeWindowType native_window;
Display *x_display;
GLint width;
GLint height;
#endif
EGLint major_version;
EGLint minor_version;
EGLint num_configs;
EGLDisplay display;
EGLSurface surface;
EGLContext context;
EGLConfig config;
} EGL_STATE_T;
EGL_STATE_T m_State;
void (*display_func) ();
void (*idle_func) ();
void (*keyboard_func) (unsigned char, int, int);
void (*reshape_func) (int, int);
void print_config_info (const int n, const EGLDisplay &display, EGLConfig &config);
void init_egl (EGL_STATE_T &state, const GLuint flags);
#ifdef _RPI
void init_dispmanx (EGL_DISPMANX_WINDOW_T &native_window);
#else
void init_display (EGL_STATE_T &state, const std::string &title);
#endif
GLboolean user_interrupt ();
};