2 Simple DirectMedia Layer
3 Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
21 #include "../../SDL_internal.h"
23 #if SDL_VIDEO_DRIVER_COCOA && SDL_VIDEO_OPENGL_EGL
25 #include "SDL_cocoavideo.h"
26 #include "SDL_cocoaopengles.h"
27 #include "SDL_cocoaopengl.h"
30 /* EGL implementation of SDL OpenGL support */
33 Cocoa_GLES_LoadLibrary(_THIS, const char *path) {
35 /* If the profile requested is not GL ES, switch over to WIN_GL functions */
36 if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES) {
37 #if SDL_VIDEO_OPENGL_CGL
38 Cocoa_GLES_UnloadLibrary(_this);
39 _this->GL_LoadLibrary = Cocoa_GL_LoadLibrary;
40 _this->GL_GetProcAddress = Cocoa_GL_GetProcAddress;
41 _this->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary;
42 _this->GL_CreateContext = Cocoa_GL_CreateContext;
43 _this->GL_MakeCurrent = Cocoa_GL_MakeCurrent;
44 _this->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval;
45 _this->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval;
46 _this->GL_SwapWindow = Cocoa_GL_SwapWindow;
47 _this->GL_DeleteContext = Cocoa_GL_DeleteContext;
48 return Cocoa_GL_LoadLibrary(_this, path);
50 return SDL_SetError("SDL not configured with OpenGL/CGL support");
54 if (_this->egl_data == NULL) {
55 return SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, 0);
62 Cocoa_GLES_CreateContext(_THIS, SDL_Window * window)
64 SDL_GLContext context;
65 SDL_WindowData *data = (SDL_WindowData *)window->driverdata;
67 #if SDL_VIDEO_OPENGL_CGL
68 if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES) {
69 /* Switch to CGL based functions */
70 Cocoa_GLES_UnloadLibrary(_this);
71 _this->GL_LoadLibrary = Cocoa_GL_LoadLibrary;
72 _this->GL_GetProcAddress = Cocoa_GL_GetProcAddress;
73 _this->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary;
74 _this->GL_CreateContext = Cocoa_GL_CreateContext;
75 _this->GL_MakeCurrent = Cocoa_GL_MakeCurrent;
76 _this->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval;
77 _this->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval;
78 _this->GL_SwapWindow = Cocoa_GL_SwapWindow;
79 _this->GL_DeleteContext = Cocoa_GL_DeleteContext;
81 if (Cocoa_GL_LoadLibrary(_this, NULL) != 0) {
85 return Cocoa_GL_CreateContext(_this, window);
89 context = SDL_EGL_CreateContext(_this, data->egl_surface);
94 Cocoa_GLES_DeleteContext(_THIS, SDL_GLContext context)
96 SDL_EGL_DeleteContext(_this, context);
97 Cocoa_GLES_UnloadLibrary(_this);
100 SDL_EGL_SwapWindow_impl(Cocoa)
101 SDL_EGL_MakeCurrent_impl(Cocoa)
104 Cocoa_GLES_SetupWindow(_THIS, SDL_Window * window)
106 /* The current context is lost in here; save it and reset it. */
107 SDL_WindowData *windowdata = (SDL_WindowData *) window->driverdata;
108 SDL_Window *current_win = SDL_GL_GetCurrentWindow();
109 SDL_GLContext current_ctx = SDL_GL_GetCurrentContext();
112 if (_this->egl_data == NULL) {
113 if (SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, 0) < 0) {
114 SDL_EGL_UnloadLibrary(_this);
119 /* Create the GLES window surface */
120 NSView* v = windowdata->nswindow.contentView;
121 windowdata->egl_surface = SDL_EGL_CreateSurface(_this, (NativeWindowType)[v layer]);
123 if (windowdata->egl_surface == EGL_NO_SURFACE) {
124 return SDL_SetError("Could not create GLES window surface");
127 return Cocoa_GLES_MakeCurrent(_this, current_win, current_ctx);
130 #endif /* SDL_VIDEO_DRIVER_COCOA && SDL_VIDEO_OPENGL_EGL */
132 /* vi: set ts=4 sw=4 expandtab: */