diff options
Diffstat (limited to 'platform/windows/gl_manager_windows.h')
| -rw-r--r-- | platform/windows/gl_manager_windows.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/platform/windows/gl_manager_windows.h b/platform/windows/gl_manager_windows.h new file mode 100644 index 0000000000..9733a57420 --- /dev/null +++ b/platform/windows/gl_manager_windows.h @@ -0,0 +1,127 @@ +/*************************************************************************/ +/* gl_manager_windows.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#ifndef GL_MANAGER_WINDOWS_H +#define GL_MANAGER_WINDOWS_H + +#if defined(WINDOWS_ENABLED) && defined(GLES3_ENABLED) + +#include "core/error/error_list.h" +#include "core/os/os.h" +#include "core/templates/local_vector.h" +#include "servers/display_server.h" + +#include <windows.h> + +typedef bool(APIENTRY *PFNWGLSWAPINTERVALEXTPROC)(int interval); +typedef int(APIENTRY *PFNWGLGETSWAPINTERVALEXTPROC)(void); + +class GLManager_Windows { +public: + enum ContextType { + GLES_3_0_COMPATIBLE, + }; + +private: + // any data specific to the window + struct GLWindow { + GLWindow() { in_use = false; } + bool in_use; + + // the external ID .. should match the GL window number .. unused I think + DisplayServer::WindowID window_id; + int width; + int height; + + // windows specific + HDC hDC; + HWND hwnd; + + int gldisplay_id; + }; + + struct GLDisplay { + // windows specific + HGLRC hRC; + }; + + LocalVector<GLWindow> _windows; + LocalVector<GLDisplay> _displays; + + GLWindow *_current_window; + + PFNWGLSWAPINTERVALEXTPROC wglSwapIntervalEXT; + PFNWGLGETSWAPINTERVALEXTPROC wglGetSwapIntervalEXT; + + // funcs + void _internal_set_current_window(GLWindow *p_win); + + GLWindow &get_window(unsigned int id) { return _windows[id]; } + const GLWindow &get_window(unsigned int id) const { return _windows[id]; } + + const GLDisplay &get_current_display() const { return _displays[_current_window->gldisplay_id]; } + const GLDisplay &get_display(unsigned int id) { return _displays[id]; } + + bool direct_render; + int glx_minor, glx_major; + bool use_vsync; + ContextType context_type; + +private: + int _find_or_create_display(GLWindow &win); + Error _create_context(GLWindow &win, GLDisplay &gl_display); + +public: + Error window_create(DisplayServer::WindowID p_window_id, HWND p_hwnd, HINSTANCE p_hinstance, int p_width, int p_height); + void window_destroy(DisplayServer::WindowID p_window_id); + void window_resize(DisplayServer::WindowID p_window_id, int p_width, int p_height); + + // get directly from the cached GLWindow + int window_get_width(DisplayServer::WindowID p_window_id = 0); + int window_get_height(DisplayServer::WindowID p_window_id = 0); + + void release_current(); + void make_current(); + void swap_buffers(); + + void window_make_current(DisplayServer::WindowID p_window_id); + + Error initialize(); + + void set_use_vsync(bool p_use); + bool is_using_vsync() const; + + GLManager_Windows(ContextType p_context_type); + ~GLManager_Windows(); +}; + +#endif // defined(WINDOWS_ENABLED) && defined(GLES3_ENABLED) + +#endif // GL_MANAGER_WINDOWS_H |