diff options
Diffstat (limited to 'source/3rd-party/SDL2/src/video/cocoa/SDL_cocoaopengles.m')
| -rw-r--r-- | source/3rd-party/SDL2/src/video/cocoa/SDL_cocoaopengles.m | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/video/cocoa/SDL_cocoaopengles.m b/source/3rd-party/SDL2/src/video/cocoa/SDL_cocoaopengles.m new file mode 100644 index 0000000..e0a05a1 --- /dev/null +++ b/source/3rd-party/SDL2/src/video/cocoa/SDL_cocoaopengles.m @@ -0,0 +1,132 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ +#include "../../SDL_internal.h" + +#if SDL_VIDEO_DRIVER_COCOA && SDL_VIDEO_OPENGL_EGL + +#include "SDL_cocoavideo.h" +#include "SDL_cocoaopengles.h" +#include "SDL_cocoaopengl.h" +#include "SDL_log.h" + +/* EGL implementation of SDL OpenGL support */ + +int +Cocoa_GLES_LoadLibrary(_THIS, const char *path) { + + /* If the profile requested is not GL ES, switch over to WIN_GL functions */ + if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES) { +#if SDL_VIDEO_OPENGL_CGL + Cocoa_GLES_UnloadLibrary(_this); + _this->GL_LoadLibrary = Cocoa_GL_LoadLibrary; + _this->GL_GetProcAddress = Cocoa_GL_GetProcAddress; + _this->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary; + _this->GL_CreateContext = Cocoa_GL_CreateContext; + _this->GL_MakeCurrent = Cocoa_GL_MakeCurrent; + _this->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval; + _this->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval; + _this->GL_SwapWindow = Cocoa_GL_SwapWindow; + _this->GL_DeleteContext = Cocoa_GL_DeleteContext; + return Cocoa_GL_LoadLibrary(_this, path); +#else + return SDL_SetError("SDL not configured with OpenGL/CGL support"); +#endif + } + + if (_this->egl_data == NULL) { + return SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, 0); + } + + return 0; +} + +SDL_GLContext +Cocoa_GLES_CreateContext(_THIS, SDL_Window * window) +{ + SDL_GLContext context; + SDL_WindowData *data = (SDL_WindowData *)window->driverdata; + +#if SDL_VIDEO_OPENGL_CGL + if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES) { + /* Switch to CGL based functions */ + Cocoa_GLES_UnloadLibrary(_this); + _this->GL_LoadLibrary = Cocoa_GL_LoadLibrary; + _this->GL_GetProcAddress = Cocoa_GL_GetProcAddress; + _this->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary; + _this->GL_CreateContext = Cocoa_GL_CreateContext; + _this->GL_MakeCurrent = Cocoa_GL_MakeCurrent; + _this->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval; + _this->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval; + _this->GL_SwapWindow = Cocoa_GL_SwapWindow; + _this->GL_DeleteContext = Cocoa_GL_DeleteContext; + + if (Cocoa_GL_LoadLibrary(_this, NULL) != 0) { + return NULL; + } + + return Cocoa_GL_CreateContext(_this, window); + } +#endif + + context = SDL_EGL_CreateContext(_this, data->egl_surface); + return context; +} + +void +Cocoa_GLES_DeleteContext(_THIS, SDL_GLContext context) +{ + SDL_EGL_DeleteContext(_this, context); + Cocoa_GLES_UnloadLibrary(_this); +} + +SDL_EGL_SwapWindow_impl(Cocoa) +SDL_EGL_MakeCurrent_impl(Cocoa) + +int +Cocoa_GLES_SetupWindow(_THIS, SDL_Window * window) +{ + /* The current context is lost in here; save it and reset it. */ + SDL_WindowData *windowdata = (SDL_WindowData *) window->driverdata; + SDL_Window *current_win = SDL_GL_GetCurrentWindow(); + SDL_GLContext current_ctx = SDL_GL_GetCurrentContext(); + + + if (_this->egl_data == NULL) { + if (SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, 0) < 0) { + SDL_EGL_UnloadLibrary(_this); + return -1; + } + } + + /* Create the GLES window surface */ + NSView* v = windowdata->nswindow.contentView; + windowdata->egl_surface = SDL_EGL_CreateSurface(_this, (NativeWindowType)[v layer]); + + if (windowdata->egl_surface == EGL_NO_SURFACE) { + return SDL_SetError("Could not create GLES window surface"); + } + + return Cocoa_GLES_MakeCurrent(_this, current_win, current_ctx); +} + +#endif /* SDL_VIDEO_DRIVER_COCOA && SDL_VIDEO_OPENGL_EGL */ + +/* vi: set ts=4 sw=4 expandtab: */ |