Atlas - SDL_cocoaopengles.m
Home / ext / SDL / src / video / cocoa Lines: 1 | Size: 5999 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_COCOA) && defined(SDL_VIDEO_OPENGL_EGL) 24 25#include "SDL_cocoavideo.h" 26#include "SDL_cocoaopengles.h" 27#include "SDL_cocoaopengl.h" 28 29// EGL implementation of SDL OpenGL support 30 31bool Cocoa_GLES_LoadLibrary(SDL_VideoDevice *_this, const char *path) 32{ 33 // If the profile requested is not GL ES, switch over to WIN_GL functions 34 if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES) { 35#ifdef SDL_VIDEO_OPENGL_CGL 36 Cocoa_GLES_UnloadLibrary(_this); 37 _this->GL_LoadLibrary = Cocoa_GL_LoadLibrary; 38 _this->GL_GetProcAddress = Cocoa_GL_GetProcAddress; 39 _this->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary; 40 _this->GL_CreateContext = Cocoa_GL_CreateContext; 41 _this->GL_MakeCurrent = Cocoa_GL_MakeCurrent; 42 _this->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval; 43 _this->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval; 44 _this->GL_SwapWindow = Cocoa_GL_SwapWindow; 45 _this->GL_DestroyContext = Cocoa_GL_DestroyContext; 46 _this->GL_GetEGLSurface = NULL; 47 return Cocoa_GL_LoadLibrary(_this, path); 48#else 49 return SDL_SetError("SDL not configured with OpenGL/CGL support"); 50#endif 51 } 52 53 if (_this->egl_data == NULL) { 54 return SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, _this->gl_config.egl_platform); 55 } 56 57 return true; 58} 59 60SDL_GLContext Cocoa_GLES_CreateContext(SDL_VideoDevice *_this, SDL_Window *window) 61{ 62 @autoreleasepool { 63 SDL_GLContext context; 64 SDL_CocoaWindowData *data = (__bridge SDL_CocoaWindowData *)window->internal; 65 66#ifdef SDL_VIDEO_OPENGL_CGL 67 if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES) { 68 // Switch to CGL based functions 69 Cocoa_GLES_UnloadLibrary(_this); 70 _this->GL_LoadLibrary = Cocoa_GL_LoadLibrary; 71 _this->GL_GetProcAddress = Cocoa_GL_GetProcAddress; 72 _this->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary; 73 _this->GL_CreateContext = Cocoa_GL_CreateContext; 74 _this->GL_MakeCurrent = Cocoa_GL_MakeCurrent; 75 _this->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval; 76 _this->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval; 77 _this->GL_SwapWindow = Cocoa_GL_SwapWindow; 78 _this->GL_DestroyContext = Cocoa_GL_DestroyContext; 79 _this->GL_GetEGLSurface = NULL; 80 81 if (!Cocoa_GL_LoadLibrary(_this, NULL)) { 82 return NULL; 83 } 84 85 return Cocoa_GL_CreateContext(_this, window); 86 } 87#endif 88 89 context = SDL_EGL_CreateContext(_this, data.egl_surface); 90 return context; 91 } 92} 93 94bool Cocoa_GLES_DestroyContext(SDL_VideoDevice *_this, SDL_GLContext context) 95{ 96 @autoreleasepool { 97 SDL_EGL_DestroyContext(_this, context); 98 } 99 return true; 100} 101 102bool Cocoa_GLES_SwapWindow(SDL_VideoDevice *_this, SDL_Window *window) 103{ 104 @autoreleasepool { 105 return SDL_EGL_SwapBuffers(_this, ((__bridge SDL_CocoaWindowData *)window->internal).egl_surface); 106 } 107} 108 109bool Cocoa_GLES_MakeCurrent(SDL_VideoDevice *_this, SDL_Window *window, SDL_GLContext context) 110{ 111 @autoreleasepool { 112 return SDL_EGL_MakeCurrent(_this, window ? ((__bridge SDL_CocoaWindowData *)window->internal).egl_surface : EGL_NO_SURFACE, context); 113 } 114} 115 116bool Cocoa_GLES_SetupWindow(SDL_VideoDevice *_this, SDL_Window *window) 117{ 118 @autoreleasepool { 119 NSView *v; 120 // The current context is lost in here; save it and reset it. 121 SDL_CocoaWindowData *windowdata = (__bridge SDL_CocoaWindowData *)window->internal; 122 SDL_Window *current_win = SDL_GL_GetCurrentWindow(); 123 SDL_GLContext current_ctx = SDL_GL_GetCurrentContext(); 124 125 if (_this->egl_data == NULL) { 126// !!! FIXME: commenting out this assertion is (I think) incorrect; figure out why driver_loaded is wrong for ANGLE instead. --ryan. 127#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. 128 SDL_assert(!_this->gl_config.driver_loaded); 129#endif 130 if (!SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, _this->gl_config.egl_platform)) { 131 SDL_EGL_UnloadLibrary(_this); 132 return false; 133 } 134 _this->gl_config.driver_loaded = 1; 135 } 136 137 // Create the GLES window surface 138 v = windowdata.nswindow.contentView; 139 windowdata.egl_surface = SDL_EGL_CreateSurface(_this, window, (__bridge NativeWindowType)[v layer]); 140 141 if (windowdata.egl_surface == EGL_NO_SURFACE) { 142 return SDL_SetError("Could not create GLES window surface"); 143 } 144 145 return Cocoa_GLES_MakeCurrent(_this, current_win, current_ctx); 146 } 147} 148 149SDL_EGLSurface Cocoa_GLES_GetEGLSurface(SDL_VideoDevice *_this, SDL_Window *window) 150{ 151 @autoreleasepool { 152 return ((__bridge SDL_CocoaWindowData *)window->internal).egl_surface; 153 } 154} 155 156#endif // SDL_VIDEO_DRIVER_COCOA && SDL_VIDEO_OPENGL_EGL 157[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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