src/video/winrt/SDL_winrtvideo_cpp.h
author David Ludwig <dludwig@pobox.com>
Fri, 09 May 2014 20:16:21 -0400
changeset 8755 f2fc45874b9c
parent 8664 565698ab1c40
child 9619 b94b6d0bff0f
permissions -rw-r--r--
Fixed rendering-alignment issues on WinPhone 8.1, when the device was rotated

If a Windows Phone 8.1 device was rotated to anything but Portrait mode,
the Direct3D 11 renderer's output wouldn't get aligned correctly with the
screen.
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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/* Windows includes: */
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#include <windows.h>
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#ifdef __cplusplus_winrt
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#include <agile.h>
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#endif
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/* SDL includes: */
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#include "SDL_video.h"
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#include "SDL_events.h"
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extern "C" {
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#include "../SDL_sysvideo.h"
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#include "../SDL_egl_c.h"
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}
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/* Private display data */
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typedef struct SDL_VideoData {
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    /* An object created by ANGLE/WinRT (OpenGL ES 2 for WinRT) that gets
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     * passed to eglGetDisplay and eglCreateWindowSurface:
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     */
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    IUnknown *winrtEglWindow;
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} SDL_VideoData;
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/* The global, WinRT, SDL Window.
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   For now, SDL/WinRT only supports one window (due to platform limitations of
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   WinRT.
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*/
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extern SDL_Window * WINRT_GlobalSDLWindow;
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/* Creates a display mode for Plain Direct3D (non-XAML) apps, using the lone, native window's settings.
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   Pass in an allocated SDL_DisplayMode field to store the data in.
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   This function will return 0 on success, -1 on failure.
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   If this function succeeds, be sure to call SDL_free on the
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   SDL_DisplayMode's driverdata field.
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*/
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extern int WINRT_CalcDisplayModeUsingNativeWindow(SDL_DisplayMode * mode);
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/* Duplicates a display mode, copying over driverdata as necessary */
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extern int WINRT_DuplicateDisplayMode(SDL_DisplayMode * dest, const SDL_DisplayMode * src);
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/* Display mode internals */
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typedef struct
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{
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    Windows::Graphics::Display::DisplayOrientations currentOrientation;
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} SDL_DisplayModeData;
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#ifdef __cplusplus_winrt
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/* A convenience macro to get a WinRT display property */
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#if NTDDI_VERSION > NTDDI_WIN8
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#define WINRT_DISPLAY_PROPERTY(NAME) (Windows::Graphics::Display::DisplayInformation::GetForCurrentView()->NAME)
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#else
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#define WINRT_DISPLAY_PROPERTY(NAME) (Windows::Graphics::Display::DisplayProperties::NAME)
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#endif
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/* Internal window data */
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struct SDL_WindowData
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{
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    SDL_Window *sdlWindow;
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    Platform::Agile<Windows::UI::Core::CoreWindow> coreWindow;
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#ifdef SDL_VIDEO_OPENGL_EGL
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    EGLSurface egl_surface;
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#endif
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};
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#endif // ifdef __cplusplus_winrt