src/video/winrt/SDL_winrtvideo_cpp.h
author David Ludwig
Mon, 04 Nov 2013 19:54:29 -0500
changeset 8541 0041edb891f3
parent 8515 bc6cf9201dab
child 8545 7cf4f8916997
permissions -rw-r--r--
WinRT: added experimental OpenGL ES 2.0 support

A port of the ANGLE library (OpenGL ES 2.0 for Direct3D) to WinRT, via https://github.com/stammen/angleproject, is used as a base.

To enable, clone 'angleproject' into the directory one above where SDL/WinRT is, open the file SDL/include/SDL_config_winrt.h, and uncomment the #defines that begin with 'SDL_VIDEO_OPENGL'. From there, apps can create an OpenGL capable SDL_Window via the flag, SDL_WINDOW_OPENGL, and an OpenGL ES 2 context via SDL_GL_CreateContext. The Direct3D 11.1 renderer cannot be used alongside SDL_WINDOW_OPENGL. Only Windows 8/8.1 is supported for now. Shaders may need to be precompiled, in some (all?) cases.
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
     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 
    22 /* Windows includes: */
    23 #include <windows.h>
    24 #ifdef __cplusplus_winrt
    25 #include <agile.h>
    26 #endif
    27 
    28 /* SDL includes: */
    29 #include "SDL_video.h"
    30 #include "SDL_events.h"
    31 
    32 extern "C" {
    33 #include "../SDL_sysvideo.h"
    34 #include "SDL_winrtegl.h"
    35 }
    36 
    37 
    38 /* The global, WinRT, SDL Window.
    39    For now, SDL/WinRT only supports one window (due to platform limitations of
    40    WinRT.
    41 */
    42 extern SDL_Window * WINRT_GlobalSDLWindow;
    43 
    44 /* The global, WinRT, video device. */
    45 extern SDL_VideoDevice * WINRT_GlobalSDLVideoDevice;
    46 
    47 /* Computes the current display mode for Plain Direct3D (non-XAML) apps */
    48 extern SDL_DisplayMode WINRT_CalcDisplayModeUsingNativeWindow();
    49 
    50 
    51 #ifdef __cplusplus_winrt
    52 
    53 /* Internal window data */
    54 struct SDL_WindowData
    55 {
    56     SDL_Window *sdlWindow;
    57     Platform::Agile<Windows::UI::Core::CoreWindow> coreWindow;
    58 #ifdef SDL_VIDEO_OPENGL_EGL
    59     EGLSurface egl_surface;
    60 #endif
    61 };
    62 
    63 #endif // ifdef __cplusplus_winrt