2022-03-13 07:56:23 +00:00
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//
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// Class Fl_Wayland_Gl_Window_Driver for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 2021-2022 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// https://www.fltk.org/COPYING.php
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//
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// Please see the following page on how to report bugs and issues:
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//
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// https://www.fltk.org/bugs.php
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//
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#ifndef FL_WINAPI_GL_WINDOW_DRIVER_H
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#define FL_WINAPI_GL_WINDOW_DRIVER_H
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#include <config.h>
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#if HAVE_GL
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#include <FL/platform.H>
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#include "../../Fl_Gl_Window_Driver.H"
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#include <FL/gl.h>
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/* Implementation note about OpenGL drawing on the Wayland platform
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2022-03-31 14:00:11 +00:00
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2022-03-13 07:56:23 +00:00
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After eglCreateWindowSurface() with attributes {EGL_RENDER_BUFFER, EGL_SINGLE_BUFFER, EGL_NONE},
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eglQueryContext() reports that EGL_RENDER_BUFFER equals EGL_BACK_BUFFER.
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This experiment suggests that the platform only supports double-buffer drawing.
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Consequently, FL_DOUBLE is enforced in all Fl_Gl_Window::mode_ values under Wayland.
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*/
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class Fl_WinAPI_Gl_Window_Driver : public Fl_Gl_Window_Driver {
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2022-05-07 13:16:29 +00:00
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friend Fl_Gl_Window_Driver* Fl_Gl_Window_Driver::newGlWindowDriver(Fl_Gl_Window *);
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2022-03-13 07:56:23 +00:00
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Fl_WinAPI_Gl_Window_Driver(Fl_Gl_Window *win) : Fl_Gl_Window_Driver(win) {}
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virtual float pixels_per_unit();
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virtual int mode_(int m, const int *a);
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virtual void make_current_after();
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virtual void swap_buffers();
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virtual void invalidate() {}
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virtual int flush_begin(char& valid_f);
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virtual Fl_Gl_Choice *find(int m, const int *alistp);
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virtual GLContext create_gl_context(Fl_Window* window, const Fl_Gl_Choice* g, int layer = 0);
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virtual void set_gl_context(Fl_Window* w, GLContext context);
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virtual void delete_gl_context(GLContext);
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virtual void make_overlay_current();
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virtual void redraw_overlay();
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virtual void* GetProcAddress(const char *procName);
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virtual void draw_string_legacy(const char* str, int n);
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virtual void gl_bitmap_font(Fl_Font_Descriptor *fl_fontsize);
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virtual void get_list(Fl_Font_Descriptor *fd, int r);
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virtual int genlistsize();
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#if HAVE_GL_OVERLAY
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virtual void gl_hide_before(void *& overlay);
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virtual int can_do_overlay();
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virtual int overlay_color(Fl_Color i);
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void make_overlay(void*&overlay);
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#endif
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};
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#endif // HAVE_GL
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#endif // FL_WINAPI_GL_WINDOW_DRIVER_H
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