Atlas - SDL_windowsopengles.c
Home / ext / SDL / src / video / windows Lines: 1 | Size: 5403 bytes [Download] [Show on GitHub] [Search similar files] [Raw] [Raw (proxy)][FILE BEGIN]1/* 2 Simple DirectMedia Layer 3 Copyright (C) 1997-2025 Sam Lantinga <[email protected]> 4 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. 8 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: 12 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. 20*/ 21#include "SDL_internal.h" 22 23#if defined(SDL_VIDEO_DRIVER_WINDOWS) && defined(SDL_VIDEO_OPENGL_EGL) && !defined(SDL_PLATFORM_XBOXONE) && !defined(SDL_PLATFORM_XBOXSERIES) 24 25#include "SDL_windowsvideo.h" 26#include "SDL_windowsopengles.h" 27#include "SDL_windowsopengl.h" 28#include "SDL_windowswindow.h" 29 30// EGL implementation of SDL OpenGL support 31 32bool WIN_GLES_LoadLibrary(SDL_VideoDevice *_this, const char *path) 33{ 34 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 !SDL_GetHintBoolean(SDL_HINT_VIDEO_FORCE_EGL, false)) { 38#ifdef SDL_VIDEO_OPENGL_WGL 39 WIN_GLES_UnloadLibrary(_this); 40 _this->GL_LoadLibrary = WIN_GL_LoadLibrary; 41 _this->GL_GetProcAddress = WIN_GL_GetProcAddress; 42 _this->GL_UnloadLibrary = WIN_GL_UnloadLibrary; 43 _this->GL_CreateContext = WIN_GL_CreateContext; 44 _this->GL_MakeCurrent = WIN_GL_MakeCurrent; 45 _this->GL_SetSwapInterval = WIN_GL_SetSwapInterval; 46 _this->GL_GetSwapInterval = WIN_GL_GetSwapInterval; 47 _this->GL_SwapWindow = WIN_GL_SwapWindow; 48 _this->GL_DestroyContext = WIN_GL_DestroyContext; 49 _this->GL_GetEGLSurface = NULL; 50 return WIN_GL_LoadLibrary(_this, path); 51#else 52 return SDL_SetError("SDL not configured with OpenGL/WGL support"); 53#endif 54 } 55 56 if (!_this->egl_data) { 57 return SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, _this->gl_config.egl_platform); 58 } 59 60 return true; 61} 62 63SDL_GLContext WIN_GLES_CreateContext(SDL_VideoDevice *_this, SDL_Window *window) 64{ 65 SDL_GLContext context; 66 SDL_WindowData *data = window->internal; 67 68#ifdef SDL_VIDEO_OPENGL_WGL 69 if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES && 70 !SDL_GetHintBoolean(SDL_HINT_VIDEO_FORCE_EGL, false)) { 71 // Switch to WGL based functions 72 WIN_GLES_UnloadLibrary(_this); 73 _this->GL_LoadLibrary = WIN_GL_LoadLibrary; 74 _this->GL_GetProcAddress = WIN_GL_GetProcAddress; 75 _this->GL_UnloadLibrary = WIN_GL_UnloadLibrary; 76 _this->GL_CreateContext = WIN_GL_CreateContext; 77 _this->GL_MakeCurrent = WIN_GL_MakeCurrent; 78 _this->GL_SetSwapInterval = WIN_GL_SetSwapInterval; 79 _this->GL_GetSwapInterval = WIN_GL_GetSwapInterval; 80 _this->GL_SwapWindow = WIN_GL_SwapWindow; 81 _this->GL_DestroyContext = WIN_GL_DestroyContext; 82 _this->GL_GetEGLSurface = NULL; 83 84 if (!WIN_GL_LoadLibrary(_this, NULL)) { 85 return NULL; 86 } 87 88 return WIN_GL_CreateContext(_this, window); 89 } 90#endif 91 92 context = SDL_EGL_CreateContext(_this, data->egl_surface); 93 return context; 94} 95 96bool WIN_GLES_DestroyContext(SDL_VideoDevice *_this, SDL_GLContext context) 97{ 98 return SDL_EGL_DestroyContext(_this, context); 99} 100 101/* *INDENT-OFF* */ // clang-format off 102SDL_EGL_SwapWindow_impl(WIN) 103SDL_EGL_MakeCurrent_impl(WIN) 104/* *INDENT-ON* */ // clang-format on 105 106bool WIN_GLES_SetupWindow(SDL_VideoDevice *_this, SDL_Window *window) 107{ 108 // The current context is lost in here; save it and reset it. 109 SDL_WindowData *windowdata = window->internal; 110 SDL_Window *current_win = SDL_GL_GetCurrentWindow(); 111 SDL_GLContext current_ctx = SDL_GL_GetCurrentContext(); 112 113 if (!_this->egl_data) { 114// !!! FIXME: commenting out this assertion is (I think) incorrect; figure out why driver_loaded is wrong for ANGLE instead. --ryan. 115#if 0 // When hint SDL_HINT_OPENGL_ES_DRIVER is set to "1" (e.g. for ANGLE support), _this->gl_config.driver_loaded can be 1, while the below lines function. 116 SDL_assert(!_this->gl_config.driver_loaded); 117#endif 118 if (!SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, _this->gl_config.egl_platform)) { 119 SDL_EGL_UnloadLibrary(_this); 120 return false; 121 } 122 _this->gl_config.driver_loaded = 1; 123 } 124 125 // Create the GLES window surface 126 windowdata->egl_surface = SDL_EGL_CreateSurface(_this, window, (NativeWindowType)windowdata->hwnd); 127 128 if (windowdata->egl_surface == EGL_NO_SURFACE) { 129 return SDL_SetError("Could not create GLES window surface"); 130 } 131 132 return WIN_GLES_MakeCurrent(_this, current_win, current_ctx); 133} 134 135EGLSurface WIN_GLES_GetEGLSurface(SDL_VideoDevice *_this, SDL_Window *window) 136{ 137 SDL_WindowData *windowdata = window->internal; 138 139 return windowdata->egl_surface; 140} 141 142#endif // SDL_VIDEO_DRIVER_WINDOWS && SDL_VIDEO_OPENGL_EGL 143[FILE END](C) 2025 0x4248 (C) 2025 4248 Media and 4248 Systems, All part of 0x4248 See LICENCE files for more information. 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