src/video/winrt/SDL_winrtvideo_cpp.h
author David Ludwig <dludwig@pobox.com>
Sat, 22 Mar 2014 20:48:18 -0400
changeset 8663 308e74493106
parent 8615 097646deaef2
child 8664 565698ab1c40
permissions -rw-r--r--
WinRT: Got OpenGL ES 2 working with the latest version of ANGLE/WinRT.

SDL/WinRT did have support for OpenGL ES 2 via an older version of ANGLE/WinRT,
however its API changed a few months ago, and SDL/WinRT would crash when trying
to use it. It would also occasionally crash when using the older version.

This changeset should make SDL/WinRT work with the latest version, as
available via MS Open Tech's git repository of it at
https://github.com/msopentech/angle

Older versions of ANGLE/WinRT (from either https://github.com/stammen/angleproject
or https://bitbucket.org/DavidLudwig/angleproject) will need to be updated to
MS Open Tech's latest version.
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2014 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_egl_c.h"
    35 }
    36 
    37 /* Private display data */
    38 typedef struct SDL_VideoData {
    39     /* An object created by ANGLE/WinRT (OpenGL ES 2 for WinRT) that gets
    40      * passed to eglGetDisplay and eglCreateWindowSurface:
    41      */
    42     IUnknown *winrtEglWindow;
    43 } SDL_VideoData;
    44 
    45 /* The global, WinRT, SDL Window.
    46    For now, SDL/WinRT only supports one window (due to platform limitations of
    47    WinRT.
    48 */
    49 extern SDL_Window * WINRT_GlobalSDLWindow;
    50 
    51 /* The global, WinRT, video device. */
    52 extern SDL_VideoDevice * WINRT_GlobalSDLVideoDevice;
    53 
    54 /* Creates a display mode for Plain Direct3D (non-XAML) apps, using the lone, native window's settings.
    55 
    56    Pass in an allocated SDL_DisplayMode field to store the data in.
    57 
    58    This function will return 0 on success, -1 on failure.
    59 
    60    If this function succeeds, be sure to call SDL_free on the
    61    SDL_DisplayMode's driverdata field.
    62 */
    63 extern int WINRT_CalcDisplayModeUsingNativeWindow(SDL_DisplayMode * mode);
    64 
    65 /* Duplicates a display mode, copying over driverdata as necessary */
    66 extern int WINRT_DuplicateDisplayMode(SDL_DisplayMode * dest, const SDL_DisplayMode * src);
    67 
    68 /* Display mode internals */
    69 typedef struct
    70 {
    71     Windows::Graphics::Display::DisplayOrientations currentOrientation;
    72 } SDL_DisplayModeData;
    73 
    74 #ifdef __cplusplus_winrt
    75 
    76 /* Internal window data */
    77 struct SDL_WindowData
    78 {
    79     SDL_Window *sdlWindow;
    80     Platform::Agile<Windows::UI::Core::CoreWindow> coreWindow;
    81 #ifdef SDL_VIDEO_OPENGL_EGL
    82     EGLSurface egl_surface;
    83 #endif
    84 };
    85 
    86 #endif // ifdef __cplusplus_winrt