SDL  2.0
SDL_winrtvideo_cpp.h
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2016 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 #if NTDDI_VERSION >= NTDDI_WINBLUE /* ApplicationView's functionality only becomes
33  useful for SDL in Win[Phone] 8.1 and up.
34  Plus, it is not available at all in WinPhone 8.0. */
35 #define SDL_WINRT_USE_APPLICATIONVIEW 1
36 #endif
37 
38 extern "C" {
39 #include "../SDL_sysvideo.h"
40 #include "../SDL_egl_c.h"
41 }
42 
43 /* Private display data */
44 typedef struct SDL_VideoData {
45  /* An object created by ANGLE/WinRT (OpenGL ES 2 for WinRT) that gets
46  * passed to eglGetDisplay and eglCreateWindowSurface:
47  */
48  IUnknown *winrtEglWindow;
50 
51 /* The global, WinRT, SDL Window.
52  For now, SDL/WinRT only supports one window (due to platform limitations of
53  WinRT.
54 */
56 
57 /* Updates one or more SDL_Window flags, by querying the OS' native windowing APIs.
58  SDL_Window flags that can be updated should be specified in 'mask'.
59 */
61 extern "C" Uint32 WINRT_DetectWindowFlags(SDL_Window * window); /* detects flags w/o applying them */
62 
63 /* Display mode internals */
64 //typedef struct
65 //{
66 // Windows::Graphics::Display::DisplayOrientations currentOrientation;
67 //} SDL_DisplayModeData;
68 
69 #ifdef __cplusplus_winrt
70 
71 /* A convenience macro to get a WinRT display property */
72 #if NTDDI_VERSION > NTDDI_WIN8
73 #define WINRT_DISPLAY_PROPERTY(NAME) (Windows::Graphics::Display::DisplayInformation::GetForCurrentView()->NAME)
74 #else
75 #define WINRT_DISPLAY_PROPERTY(NAME) (Windows::Graphics::Display::DisplayProperties::NAME)
76 #endif
77 
78 /* Converts DIPS to/from physical pixels */
79 #define WINRT_DIPS_TO_PHYSICAL_PIXELS(DIPS) ((int)(0.5f + (((float)(DIPS) * (float)WINRT_DISPLAY_PROPERTY(LogicalDpi)) / 96.f)))
80 #define WINRT_PHYSICAL_PIXELS_TO_DIPS(PHYSPIX) (((float)(PHYSPIX) * 96.f)/WINRT_DISPLAY_PROPERTY(LogicalDpi))
81 
82 /* Internal window data */
83 struct SDL_WindowData
84 {
85  SDL_Window *sdlWindow;
86  Platform::Agile<Windows::UI::Core::CoreWindow> coreWindow;
87 #ifdef SDL_VIDEO_OPENGL_EGL
88  EGLSurface egl_surface;
89 #endif
90 #if SDL_WINRT_USE_APPLICATIONVIEW
91  Windows::UI::ViewManagement::ApplicationView ^ appView;
92 #endif
93 };
94 
95 #endif // ifdef __cplusplus_winrt
void WINRT_UpdateWindowFlags(SDL_Window *window, Uint32 mask)
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_Window * window
Definition: SDL_naclvideo.h:40
Uint32 WINRT_DetectWindowFlags(SDL_Window *window)
GLenum GLint GLuint mask
SDL_Window * WINRT_GlobalSDLWindow
The type used to identify a window.
Definition: SDL_sysvideo.h:71
IUnknown * winrtEglWindow