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SDL/src/dynapi/SDL_dynapi.h

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Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
/*
Simple DirectMedia Layer
Updated copyright for 2019
2019-01-05 06:01:14 +00:00
Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
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.
*/
Renaming of guard header names to quiet -Wreserved-id-macro Patch contributed by Sylvain
2016-11-21 05:34:54 +00:00
#ifndef SDL_dynapi_h_
#define SDL_dynapi_h_
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
/* IMPORTANT:
This is the master switch to disabling the dynamic API. We made it so you
have to hand-edit an internal source file in SDL to turn it off; you
can do it if you want it badly enough, but hopefully you won't want to.
You should understand the ramifications of turning this off: it makes it
hard to update your SDL in the field, and impossible if you've statically
linked SDL into your app. Understand that platforms change, and if we can't
drop in an updated SDL, your application can definitely break some time
in the future, even if it's fine today.
To be sure, as new system-level video and audio APIs are introduced, an
updated SDL can transparently take advantage of them, but your program will
not without this feature. Think hard before turning it off.
*/
#ifdef SDL_DYNAMIC_API /* Tried to force it on the command line? */
#error Nope, you have to edit this file to force this off.
#endif
#ifdef __APPLE__
#include "TargetConditionals.h"
#endif
Fixed compile warnings about evaluating undefined identifiers. Partially fixes Bugzilla #3351.
2016-07-17 18:32:44 +00:00
#if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE /* probably not useful on iOS. */
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
#define SDL_DYNAMIC_API 0
Fixed compile warnings about evaluating undefined identifiers. Partially fixes Bugzilla #3351.
2016-07-17 18:32:44 +00:00
#elif defined(__native_client__) && __native_client__ /* probably not useful on NACL. */
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
#define SDL_DYNAMIC_API 0
Fixed compile warnings about evaluating undefined identifiers. Partially fixes Bugzilla #3351.
2016-07-17 18:32:44 +00:00
#elif defined(__EMSCRIPTEN__) && __EMSCRIPTEN__ /* probably not useful on Emscripten. */
#define SDL_DYNAMIC_API 0
#elif defined(SDL_BUILDING_WINRT) && SDL_BUILDING_WINRT /* probably not useful on WinRT, given current .dll loading restrictions */
#define SDL_DYNAMIC_API 0
#elif defined(__PSP__) && __PSP__
PSP: Deactivated dynamic API. Thanks to Bugzilla #3240 for pointing this out.
2016-02-13 16:35:38 +00:00
#define SDL_DYNAMIC_API 0
Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
2015-06-21 15:33:46 +00:00
#elif defined(__clang_analyzer__)
#define SDL_DYNAMIC_API 0 /* Turn off for static analysis, so reports are more clear. */
#endif
/* everyone else. This is where we turn on the API if nothing forced it off. */
#ifndef SDL_DYNAMIC_API
#define SDL_DYNAMIC_API 1
#endif
#endif
/* vi: set ts=4 sw=4 expandtab: */