Upgrade to SDL2.0.3.

libs/SDL2/src/render/opengl/SDL_glfuncs.h

@@ -1,3 +1,24 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2014 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.
+*/
+
 /* list of OpenGL functions sorted alphabetically
    If you need to use a GL function from the SDL video subsystem,
    change its entry from SDL_PROC_UNUSED to SDL_PROC and rebuild.

libs/SDL2/src/render/opengl/SDL_render_gl.c

@@ -447,7 +447,7 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags)
     renderer->GL_BindTexture = GL_BindTexture;
     renderer->GL_UnbindTexture = GL_UnbindTexture;
     renderer->info = GL_RenderDriver.info;
-    renderer->info.flags = SDL_RENDERER_ACCELERATED;
+    renderer->info.flags = (SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE);
     renderer->driverdata = data;
     renderer->window = window;