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Diffstat (limited to 'platform/osx/gl_manager_osx.mm')
| -rw-r--r-- | platform/osx/gl_manager_osx.mm | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/platform/osx/gl_manager_osx.mm b/platform/osx/gl_manager_osx.mm new file mode 100644 index 0000000000..60e0706fc0 --- /dev/null +++ b/platform/osx/gl_manager_osx.mm @@ -0,0 +1,233 @@ +/*************************************************************************/ +/* gl_manager_osx.mm */ +/*************************************************************************/ +/* 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. */ +/*************************************************************************/ + +#include "gl_manager_osx.h" + +#ifdef OSX_ENABLED +#ifdef GLES3_ENABLED + +#include <stdio.h> +#include <stdlib.h> + +Error GLManager_OSX::_create_context(GLWindow &win) { + NSOpenGLPixelFormatAttribute attributes[] = { + NSOpenGLPFADoubleBuffer, + NSOpenGLPFAClosestPolicy, + NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core, + NSOpenGLPFAColorSize, 32, + NSOpenGLPFADepthSize, 24, + NSOpenGLPFAStencilSize, 8, + 0 + }; + + NSOpenGLPixelFormat *pixel_format = [[NSOpenGLPixelFormat alloc] initWithAttributes:attributes]; + ERR_FAIL_COND_V(pixel_format == nil, ERR_CANT_CREATE); + + win.context = [[NSOpenGLContext alloc] initWithFormat:pixel_format shareContext:_shared_context]; + ERR_FAIL_COND_V(win.context == nil, ERR_CANT_CREATE); + if (_shared_context == nullptr) { + _shared_context = win.context; + } + + [win.context setView:win.window_view]; + [win.context makeCurrentContext]; + + return OK; +} + +Error GLManager_OSX::window_create(DisplayServer::WindowID p_window_id, id p_view, int p_width, int p_height) { + if (p_window_id >= (int)_windows.size()) { + _windows.resize(p_window_id + 1); + } + + GLWindow &win = _windows[p_window_id]; + win.in_use = true; + win.window_id = p_window_id; + win.width = p_width; + win.height = p_height; + win.window_view = p_view; + + if (_create_context(win) != OK) { + _windows.remove_at(_windows.size() - 1); + return FAILED; + } + + window_make_current(_windows.size() - 1); + + return OK; +} + +void GLManager_OSX::_internal_set_current_window(GLWindow *p_win) { + _current_window = p_win; +} + +void GLManager_OSX::window_resize(DisplayServer::WindowID p_window_id, int p_width, int p_height) { + if (p_window_id == -1) { + return; + } + + GLWindow &win = _windows[p_window_id]; + if (!win.in_use) { + return; + } + + win.width = p_width; + win.height = p_height; + + GLint dim[2]; + dim[0] = p_width; + dim[1] = p_height; + CGLSetParameter((CGLContextObj)[win.context CGLContextObj], kCGLCPSurfaceBackingSize, &dim[0]); + CGLEnable((CGLContextObj)[win.context CGLContextObj], kCGLCESurfaceBackingSize); + if (OS::get_singleton()->is_hidpi_allowed()) { + [win.window_view setWantsBestResolutionOpenGLSurface:YES]; + } else { + [win.window_view setWantsBestResolutionOpenGLSurface:NO]; + } + + [win.context update]; +} + +int GLManager_OSX::window_get_width(DisplayServer::WindowID p_window_id) { + return get_window(p_window_id).width; +} + +int GLManager_OSX::window_get_height(DisplayServer::WindowID p_window_id) { + return get_window(p_window_id).height; +} + +void GLManager_OSX::window_destroy(DisplayServer::WindowID p_window_id) { + GLWindow &win = get_window(p_window_id); + win.in_use = false; + + if (_current_window == &win) { + _current_window = nullptr; + } +} + +void GLManager_OSX::release_current() { + if (!_current_window) { + return; + } + + [NSOpenGLContext clearCurrentContext]; +} + +void GLManager_OSX::window_make_current(DisplayServer::WindowID p_window_id) { + if (p_window_id == -1) { + return; + } + + GLWindow &win = _windows[p_window_id]; + if (!win.in_use) { + return; + } + + if (&win == _current_window) { + return; + } + + [win.context makeCurrentContext]; + + _internal_set_current_window(&win); +} + +void GLManager_OSX::make_current() { + if (!_current_window) { + return; + } + if (!_current_window->in_use) { + WARN_PRINT("current window not in use!"); + return; + } + [_current_window->context makeCurrentContext]; +} + +void GLManager_OSX::swap_buffers() { + // NO NEED TO CALL SWAP BUFFERS for each window... + // see https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glXSwapBuffers.xml + + if (!_current_window) { + return; + } + if (!_current_window->in_use) { + WARN_PRINT("current window not in use!"); + return; + } + [_current_window->context flushBuffer]; +} + +void GLManager_OSX::window_update(DisplayServer::WindowID p_window_id) { + if (p_window_id == -1) { + return; + } + + GLWindow &win = _windows[p_window_id]; + if (!win.in_use) { + return; + } + + if (&win == _current_window) { + return; + } + + [win.context update]; +} + +Error GLManager_OSX::initialize() { + return OK; +} + +void GLManager_OSX::set_use_vsync(bool p_use) { + use_vsync = p_use; + CGLContextObj ctx = CGLGetCurrentContext(); + if (ctx) { + GLint swapInterval = p_use ? 1 : 0; + CGLSetParameter(ctx, kCGLCPSwapInterval, &swapInterval); + use_vsync = p_use; + } +} + +bool GLManager_OSX::is_using_vsync() const { + return use_vsync; +} + +GLManager_OSX::GLManager_OSX(ContextType p_context_type) { + context_type = p_context_type; + use_vsync = false; + _current_window = nullptr; +} + +GLManager_OSX::~GLManager_OSX() { + release_current(); +} + +#endif // GLES3_ENABLED +#endif // OSX |