SDL_winrtvideo.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
/*
Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#if SDL_VIDEO_DRIVER_WINRT
/* WinRT SDL video driver implementation
Initial work on this was done by David Ludwig (dludwig@pobox.com), and
was based off of SDL's "dummy" video driver.
*/
31
32
33
34
35
36
/* Windows includes */
#include <agile.h>
using namespace Windows::UI::Core;
/* SDL includes */
37
38
39
40
41
42
43
44
45
46
extern "C" {
#include "SDL_video.h"
#include "SDL_mouse.h"
#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "../../events/SDL_events_c.h"
#include "../../render/SDL_sysrender.h"
#include "SDL_syswm.h"
}
47
#include "../../core/winrt/SDL_winrtapp.h"
48
49
50
51
52
53
54
55
56
57
58
59
#include "SDL_winrtevents_c.h"
#include "SDL_winrtmouse.h"
extern SDL_WinRTApp ^ SDL_WinRTGlobalApp;
/* Initialization/Query functions */
static int WINRT_VideoInit(_THIS);
static int WINRT_InitModes(_THIS);
static int WINRT_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode);
static void WINRT_VideoQuit(_THIS);
61
62
63
64
65
/* Window functions */
static int WINRT_CreateWindow(_THIS, SDL_Window * window);
static void WINRT_DestroyWindow(_THIS, SDL_Window * window);
static SDL_bool WINRT_GetWindowWMInfo(_THIS, SDL_Window * window, SDL_SysWMinfo * info);
66
67
68
69
70
71
72
73
74
/* Internal window data */
struct SDL_WindowData
{
SDL_Window *sdlWindow;
Platform::Agile<Windows::UI::Core::CoreWindow> coreWindow;
};
75
76
77
78
79
80
81
/* The global, WinRT, SDL Window.
For now, SDL/WinRT only supports one window (due to platform limitations of
WinRT.
*/
SDL_Window * WINRT_GlobalSDLWindow = NULL;
82
83
84
85
86
/* The global, WinRT, video device.
*/
SDL_VideoDevice * WINRT_GlobalSDLVideoDevice = NULL;
87
88
89
90
91
92
93
94
95
96
97
/* WinRT driver bootstrap functions */
static int
WINRT_Available(void)
{
return (1);
}
static void
WINRT_DeleteDevice(SDL_VideoDevice * device)
{
98
99
100
if (device == WINRT_GlobalSDLVideoDevice) {
WINRT_GlobalSDLVideoDevice = NULL;
}
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
SDL_free(device);
}
static SDL_VideoDevice *
WINRT_CreateDevice(int devindex)
{
SDL_VideoDevice *device;
/* Initialize all variables that we clean on shutdown */
device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
if (!device) {
SDL_OutOfMemory();
if (device) {
SDL_free(device);
}
return (0);
}
/* Set the function pointers */
device->VideoInit = WINRT_VideoInit;
device->VideoQuit = WINRT_VideoQuit;
device->CreateWindow = WINRT_CreateWindow;
device->DestroyWindow = WINRT_DestroyWindow;
device->SetDisplayMode = WINRT_SetDisplayMode;
device->PumpEvents = WINRT_PumpEvents;
device->GetWindowWMInfo = WINRT_GetWindowWMInfo;
device->free = WINRT_DeleteDevice;
128
WINRT_GlobalSDLVideoDevice = device;
129
130
131
132
return device;
}
133
#define WINRTVID_DRIVER_NAME "winrt"
134
VideoBootStrap WINRT_bootstrap = {
135
WINRTVID_DRIVER_NAME, "SDL WinRT video driver",
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
WINRT_Available, WINRT_CreateDevice
};
int
WINRT_VideoInit(_THIS)
{
if (WINRT_InitModes(_this) < 0) {
return -1;
}
WINRT_InitMouse(_this);
return 0;
}
static int
WINRT_InitModes(_THIS)
{
153
SDL_DisplayMode mode = SDL_WinRTGlobalApp->CalcCurrentDisplayMode();
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
if (SDL_AddBasicVideoDisplay(&mode) < 0) {
return -1;
}
SDL_AddDisplayMode(&_this->displays[0], &mode);
return 0;
}
static int
WINRT_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode)
{
return 0;
}
void
WINRT_VideoQuit(_THIS)
{
WINRT_QuitMouse(_this);
}
int
WINRT_CreateWindow(_THIS, SDL_Window * window)
{
// Make sure that only one window gets created, at least until multimonitor
// support is added.
179
if (WINRT_GlobalSDLWindow != NULL) {
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
SDL_SetError("WinRT only supports one window");
return -1;
}
SDL_WindowData *data = new SDL_WindowData;
if (!data) {
SDL_OutOfMemory();
return -1;
}
window->driverdata = data;
data->sdlWindow = window;
data->coreWindow = CoreWindow::GetForCurrentThread();
/* Make sure the window is considered to be positioned at {0,0},
and is considered fullscreen, shown, and the like.
*/
window->x = 0;
window->y = 0;
window->flags =
SDL_WINDOW_FULLSCREEN |
SDL_WINDOW_SHOWN |
SDL_WINDOW_BORDERLESS |
SDL_WINDOW_MAXIMIZED |
SDL_WINDOW_INPUT_GRABBED;
205
206
207
/* WinRT does not, as of this writing, appear to support app-adjustable
window sizes. Set the window size to whatever the native WinRT
CoreWindow is set at.
209
TODO, WinRT: if and when non-fullscreen XAML control support is added to SDL, consider making those resizable via SDL_Window's interfaces.
211
212
window->w = _this->displays[0].current_mode.w;
window->h = _this->displays[0].current_mode.h;
213
214
215
216
/* Make sure the WinRT app's IFramworkView can post events on
behalf of SDL:
*/
217
WINRT_GlobalSDLWindow = window;
218
219
220
221
222
223
224
225
226
227
/* All done! */
return 0;
}
void
WINRT_DestroyWindow(_THIS, SDL_Window * window)
{
SDL_WindowData * data = (SDL_WindowData *) window->driverdata;
228
229
if (WINRT_GlobalSDLWindow == window) {
WINRT_GlobalSDLWindow = NULL;
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
}
if (data) {
// Delete the internal window data:
delete data;
data = NULL;
}
}
SDL_bool
WINRT_GetWindowWMInfo(_THIS, SDL_Window * window, SDL_SysWMinfo * info)
{
SDL_WindowData * data = (SDL_WindowData *) window->driverdata;
if (info->version.major <= SDL_MAJOR_VERSION) {
245
info->subsystem = SDL_SYSWM_WINRT;
246
247
248
249
250
251
252
253
254
255
256
257
258
info->info.winrt.window = reinterpret_cast<IUnknown *>(data->coreWindow.Get());
return SDL_TRUE;
} else {
SDL_SetError("Application not compiled with SDL %d.%d\n",
SDL_MAJOR_VERSION, SDL_MINOR_VERSION);
return SDL_FALSE;
}
return SDL_FALSE;
}
#endif /* SDL_VIDEO_DRIVER_WINRT */
/* vi: set ts=4 sw=4 expandtab: */