SDL  2.0
SDL_render_winrt.cpp
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 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 #include "../../SDL_internal.h"
22 
23 #if SDL_VIDEO_RENDER_D3D11 && !SDL_RENDER_DISABLED
24 
25 #include "SDL_syswm.h"
26 #include "../../video/winrt/SDL_winrtvideo_cpp.h"
27 extern "C" {
28 #include "../SDL_sysrender.h"
29 }
30 
31 #include <windows.ui.core.h>
32 #include <windows.graphics.display.h>
33 
34 #if WINAPI_FAMILY == WINAPI_FAMILY_APP
35 #include <windows.ui.xaml.media.dxinterop.h>
36 #endif
37 
38 using namespace Windows::UI::Core;
39 using namespace Windows::Graphics::Display;
40 
41 #include <DXGI.h>
42 
43 #include "SDL_render_winrt.h"
44 
45 
46 extern "C" void *
47 D3D11_GetCoreWindowFromSDLRenderer(SDL_Renderer * renderer)
48 {
49  SDL_Window * sdlWindow = renderer->window;
50  if ( ! renderer->window ) {
51  return NULL;
52  }
53 
54  SDL_SysWMinfo sdlWindowInfo;
55  SDL_VERSION(&sdlWindowInfo.version);
56  if ( ! SDL_GetWindowWMInfo(sdlWindow, &sdlWindowInfo) ) {
57  return NULL;
58  }
59 
60  if (sdlWindowInfo.subsystem != SDL_SYSWM_WINRT) {
61  return NULL;
62  }
63 
64  if (!sdlWindowInfo.info.winrt.window) {
65  return NULL;
66  }
67 
68  ABI::Windows::UI::Core::ICoreWindow *coreWindow = NULL;
69  if (FAILED(sdlWindowInfo.info.winrt.window->QueryInterface(&coreWindow))) {
70  return NULL;
71  }
72 
73  IUnknown *coreWindowAsIUnknown = NULL;
74  coreWindow->QueryInterface(&coreWindowAsIUnknown);
75  coreWindow->Release();
76 
77  return coreWindowAsIUnknown;
78 }
79 
80 extern "C" DXGI_MODE_ROTATION
81 D3D11_GetCurrentRotation()
82 {
83  const DisplayOrientations currentOrientation = WINRT_DISPLAY_PROPERTY(CurrentOrientation);
84 
85  switch (currentOrientation) {
86 
87 #if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
88  /* Windows Phone rotations */
89  case DisplayOrientations::Landscape:
90  return DXGI_MODE_ROTATION_ROTATE90;
91  case DisplayOrientations::Portrait:
92  return DXGI_MODE_ROTATION_IDENTITY;
93  case DisplayOrientations::LandscapeFlipped:
94  return DXGI_MODE_ROTATION_ROTATE270;
95  case DisplayOrientations::PortraitFlipped:
96  return DXGI_MODE_ROTATION_ROTATE180;
97 #else
98  /* Non-Windows-Phone rotations (ex: Windows 8, Windows RT) */
99  case DisplayOrientations::Landscape:
100  return DXGI_MODE_ROTATION_IDENTITY;
101  case DisplayOrientations::Portrait:
102  return DXGI_MODE_ROTATION_ROTATE270;
103  case DisplayOrientations::LandscapeFlipped:
104  return DXGI_MODE_ROTATION_ROTATE180;
105  case DisplayOrientations::PortraitFlipped:
106  return DXGI_MODE_ROTATION_ROTATE90;
107 #endif /* WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP */
108  }
109 
110  return DXGI_MODE_ROTATION_IDENTITY;
111 }
112 
113 
114 #endif /* SDL_VIDEO_RENDER_D3D11 && !SDL_RENDER_DISABLED */
115 
116 /* vi: set ts=4 sw=4 expandtab: */
SDL_version version
Definition: SDL_syswm.h:196
SDL_SYSWM_TYPE subsystem
Definition: SDL_syswm.h:197
SDL_Window * window
#define SDL_VERSION(x)
Macro to determine SDL version program was compiled against.
Definition: SDL_version.h:79
#define FAILED(x)
Definition: SDL_directx.h:54
static SDL_Renderer * renderer
#define SDL_GetWindowWMInfo
Window window
Definition: SDL_syswm.h:218
#define NULL
Definition: begin_code.h:164
The type used to identify a window.
Definition: SDL_sysvideo.h:73
union SDL_SysWMinfo::@18 info