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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
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
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_uikitopengles.h"
#include "SDL_uikitopenglview.h"
#include "SDL_uikitappdelegate.h"
#include "SDL_uikitwindow.h"
#include "jumphack.h"
#include "SDL_sysvideo.h"
#include "../../events/SDL_keyboard_c.h"
#include "../../events/SDL_mouse_c.h"
#include "SDL_loadso.h"
#include <dlfcn.h>
static int UIKit_GL_Initialize(_THIS);
void *
UIKit_GL_GetProcAddress(_THIS, const char *proc)
{
/* Look through all SO's for the proc symbol. Here's why:
-Looking for the path to the OpenGL Library seems not to work in the iPhone Simulator.
-We don't know that the path won't change in the future.
*/
return SDL_LoadFunction(RTLD_DEFAULT, proc);
}
/*
note that SDL_GL_Delete context makes it current without passing the window
*/
int UIKit_GL_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context)
{
if (context) {
SDL_WindowData *data = (SDL_WindowData *)window->driverdata;
[data->view setCurrentContext];
}
else {
[EAGLContext setCurrentContext: nil];
}
return 0;
}
int
UIKit_GL_LoadLibrary(_THIS, const char *path)
{
/*
shouldn't be passing a path into this function
why? Because we've already loaded the library
and because the SDK forbids loading an external SO
*/
if (path != NULL) {
SDL_SetError("iPhone GL Load Library just here for compatibility");
return -1;
}
return 0;
}
extern void SDL_UIKit_UpdateBatteryMonitoring(void);
void UIKit_GL_SwapWindow(_THIS, SDL_Window * window)
{
#ifdef SDL_POWER_UIKIT
// Check once a frame to see if we should turn off the battery monitor.
SDL_UIKit_UpdateBatteryMonitoring();
#endif
SDL_WindowData *data = (SDL_WindowData *)window->driverdata;
if (nil == data->view) {
return;
}
[data->view swapBuffers];
/* since now we've got something to draw
make the window visible */
[data->uiwindow makeKeyAndVisible];
/* we need to let the event cycle run, or the OS won't update the OpenGL view! */
SDL_PumpEvents();
}
SDL_GLContext UIKit_GL_CreateContext(_THIS, SDL_Window * window)
{
SDL_uikitopenglview *view;
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
UIScreen *uiscreen = (UIScreen *) SDL_GetDisplayForWindow(window)->driverdata;
UIWindow *uiwindow = data->uiwindow;
/* construct our view, passing in SDL's OpenGL configuration data */
view = [[SDL_uikitopenglview alloc] initWithFrame: [uiwindow bounds] \
retainBacking: _this->gl_config.retained_backing \
rBits: _this->gl_config.red_size \
gBits: _this->gl_config.green_size \
bBits: _this->gl_config.blue_size \
aBits: _this->gl_config.alpha_size \
depthBits: _this->gl_config.depth_size \
majorVersion: _this->gl_config.major_version];
data->view = view;
/* add the view to our window */
[uiwindow addSubview: view ];
/* Don't worry, the window retained the view */
[view release];
if ( UIKit_GL_MakeCurrent(_this, window, view) < 0 ) {
UIKit_GL_DeleteContext(_this, view);
return NULL;
}
/* Make this window the current mouse focus for touch input */
SDL_SetMouseFocus(window);
SDL_SetKeyboardFocus(window);
return view;
}
void UIKit_GL_DeleteContext(_THIS, SDL_GLContext context)
{
/* the delegate has retained the view, this will release him */
SDL_uikitopenglview *view = (SDL_uikitopenglview *)context;
/* this will also delete it */
[view removeFromSuperview];
}
/* vi: set ts=4 sw=4 expandtab: */
|
