Mercurial > sdl-ios-xcode
annotate src/video/windib/SDL_dibevents.c @ 1555:780fd5b61df1
Fixed bug #89
Date: Sun, 23 Oct 2005 16:39:03 +0200
From: "A. Schmid" <sahib@phreaker.net>
Subject: [SDL] no software surfaces with svgalib driver?
Hi,
I noticed that the SDL (1.2.9) svgalib driver only makes use of linear
addressable (framebuffer) video modes. On older systems (like one of
mine), linear addressable modes are often not available.
Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is
unusable, since VESA only supports framebuffering for VBE 2.0 and later.
The changes necessary to add support for software surfaces seem to be
relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see
attached patch). The code worked fine for me, but it is no more than a
proof of concept and should be reviewed (probably has a memory leak when
switching modes). It also uses the vgagl library (included in the
svgalib package) and needs to be linked against it.
-Alex
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 19 Mar 2006 12:05:16 +0000 |
parents | 89f90f32f6c0 |
children | 782fd950bd46 eb2d5480ae95 |
rev | line source |
---|---|
0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
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6 modify it under the terms of the GNU Lesser General Public |
0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
0 | 9 |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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13 Lesser General Public License for more details. |
0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
0 | 18 |
19 Sam Lantinga | |
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20 slouken@libsdl.org |
0 | 21 */ |
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22 #include "SDL_config.h" |
0 | 23 |
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24 #define WIN32_LEAN_AND_MEAN |
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25 #include <windows.h> |
0 | 26 |
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27 #include "SDL_main.h" |
0 | 28 #include "SDL_events.h" |
29 #include "SDL_syswm.h" | |
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30 #include "../../events/SDL_sysevents.h" |
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31 #include "../../events/SDL_events_c.h" |
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32 #include "../wincommon/SDL_lowvideo.h" |
0 | 33 #include "SDL_dibvideo.h" |
34 #include "SDL_vkeys.h" | |
35 | |
36 #ifndef WM_APP | |
37 #define WM_APP 0x8000 | |
38 #endif | |
39 | |
40 #ifdef _WIN32_WCE | |
41 #define NO_GETKEYBOARDSTATE | |
42 #endif | |
43 | |
44 /* The translation table from a Microsoft VK keysym to a SDL keysym */ | |
45 static SDLKey VK_keymap[SDLK_LAST]; | |
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46 static SDL_keysym *TranslateKey(WPARAM vkey, UINT scancode, SDL_keysym *keysym, int pressed); |
0 | 47 |
48 /* Masks for processing the windows KEYDOWN and KEYUP messages */ | |
49 #define REPEATED_KEYMASK (1<<30) | |
50 #define EXTENDED_KEYMASK (1<<24) | |
51 | |
145
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52 /* DJM: If the user setup the window for us, we want to save his window proc, |
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53 and give him a chance to handle some messages. */ |
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54 #ifdef STRICT |
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55 #define WNDPROCTYPE WNDPROC |
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56 #else |
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57 #define WNDPROCTYPE FARPROC |
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58 #endif |
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59 static WNDPROCTYPE userWindowProc = NULL; |
145
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60 |
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61 |
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62 #ifdef _WIN32_WCE |
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63 |
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64 WPARAM rotateKey(WPARAM key,SDL_ScreenOrientation direction) |
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65 { |
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66 if (direction != SDL_ORIENTATION_LEFT) |
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67 return key; |
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68 |
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69 switch (key) { |
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70 case 0x26: /* up */ |
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71 return 0x27; |
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72 case 0x27: /* right */ |
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73 return 0x28; |
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74 case 0x28: /* down */ |
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75 return 0x25; |
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76 case 0x25: /* left */ |
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77 return 0x26; |
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78 } |
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79 |
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80 return key; |
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81 } |
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82 |
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83 #endif |
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84 |
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85 |
0 | 86 /* The main Win32 event handler */ |
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87 LRESULT DIB_HandleMessage(_THIS, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) |
0 | 88 { |
89 extern int posted; | |
90 | |
91 switch (msg) { | |
92 case WM_SYSKEYDOWN: | |
93 case WM_KEYDOWN: { | |
94 SDL_keysym keysym; | |
95 | |
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96 #ifdef _WIN32_WCE |
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97 // Drop GAPI artefacts |
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98 if (wParam == 0x84 || wParam == 0x5B) |
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99 return 0; |
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100 |
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101 // Rotate key if necessary |
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102 if (this->hidden->orientation != SDL_ORIENTATION_UP) |
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103 wParam = rotateKey(wParam, this->hidden->orientation); |
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104 #endif |
0 | 105 /* Ignore repeated keys */ |
106 if ( lParam&REPEATED_KEYMASK ) { | |
107 return(0); | |
108 } | |
109 switch (wParam) { | |
110 case VK_CONTROL: | |
111 if ( lParam&EXTENDED_KEYMASK ) | |
112 wParam = VK_RCONTROL; | |
113 else | |
114 wParam = VK_LCONTROL; | |
115 break; | |
116 case VK_SHIFT: | |
117 /* EXTENDED trick doesn't work here */ | |
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118 { |
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119 Uint8 *state = SDL_GetKeyState(NULL); |
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120 if (state[SDLK_LSHIFT] == SDL_RELEASED && (GetKeyState(VK_LSHIFT) & 0x8000)) { |
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121 wParam = VK_LSHIFT; |
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122 } else if (state[SDLK_RSHIFT] == SDL_RELEASED && (GetKeyState(VK_RSHIFT) & 0x8000)) { |
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123 wParam = VK_RSHIFT; |
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124 } else { |
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125 /* Probably a key repeat */ |
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126 return(0); |
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127 } |
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128 } |
0 | 129 break; |
130 case VK_MENU: | |
131 if ( lParam&EXTENDED_KEYMASK ) | |
132 wParam = VK_RMENU; | |
133 else | |
134 wParam = VK_LMENU; | |
135 break; | |
136 } | |
112
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137 #ifdef NO_GETKEYBOARDSTATE |
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138 /* this is the workaround for the missing ToAscii() and ToUnicode() in CE (not necessary at KEYUP!) */ |
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139 if ( SDL_TranslateUNICODE ) { |
140
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140 MSG m; |
112
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141 |
140
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142 m.hwnd = hwnd; |
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143 m.message = msg; |
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144 m.wParam = wParam; |
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145 m.lParam = lParam; |
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146 m.time = 0; |
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147 if ( TranslateMessage(&m) && PeekMessage(&m, hwnd, 0, WM_USER, PM_NOREMOVE) && (m.message == WM_CHAR) ) { |
112
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148 GetMessage(&m, hwnd, 0, WM_USER); |
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149 wParam = m.wParam; |
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150 } |
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151 } |
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152 #endif /* NO_GETKEYBOARDSTATE */ |
0 | 153 posted = SDL_PrivateKeyboard(SDL_PRESSED, |
154 TranslateKey(wParam,HIWORD(lParam),&keysym,1)); | |
155 } | |
156 return(0); | |
157 | |
158 case WM_SYSKEYUP: | |
159 case WM_KEYUP: { | |
160 SDL_keysym keysym; | |
161 | |
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162 #ifdef _WIN32_WCE |
1526 | 163 // Drop GAPI artifacts |
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164 if (wParam == 0x84 || wParam == 0x5B) |
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165 return 0; |
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166 |
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167 // Rotate key if necessary |
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168 if (this->hidden->orientation != SDL_ORIENTATION_UP) |
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169 wParam = rotateKey(wParam, this->hidden->orientation); |
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170 #endif |
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171 |
0 | 172 switch (wParam) { |
173 case VK_CONTROL: | |
174 if ( lParam&EXTENDED_KEYMASK ) | |
175 wParam = VK_RCONTROL; | |
176 else | |
177 wParam = VK_LCONTROL; | |
178 break; | |
179 case VK_SHIFT: | |
180 /* EXTENDED trick doesn't work here */ | |
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181 { |
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182 Uint8 *state = SDL_GetKeyState(NULL); |
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183 if (state[SDLK_LSHIFT] == SDL_PRESSED && !(GetKeyState(VK_LSHIFT) & 0x8000)) { |
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184 wParam = VK_LSHIFT; |
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185 } else if (state[SDLK_RSHIFT] == SDL_PRESSED && !(GetKeyState(VK_RSHIFT) & 0x8000)) { |
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186 wParam = VK_RSHIFT; |
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187 } else { |
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188 /* Probably a key repeat */ |
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189 return(0); |
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190 } |
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191 } |
0 | 192 break; |
193 case VK_MENU: | |
194 if ( lParam&EXTENDED_KEYMASK ) | |
195 wParam = VK_RMENU; | |
196 else | |
197 wParam = VK_LMENU; | |
198 break; | |
199 } | |
1526 | 200 /* Windows only reports keyup for print screen */ |
201 if ( wParam == VK_SNAPSHOT && SDL_GetKeyState(NULL)[SDLK_PRINT] == SDL_RELEASED ) { | |
202 posted = SDL_PrivateKeyboard(SDL_PRESSED, | |
203 TranslateKey(wParam,HIWORD(lParam),&keysym,1)); | |
204 } | |
0 | 205 posted = SDL_PrivateKeyboard(SDL_RELEASED, |
206 TranslateKey(wParam,HIWORD(lParam),&keysym,0)); | |
207 } | |
208 return(0); | |
209 | |
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210 #if defined(SC_SCREENSAVE) && defined(SC_MONITORPOWER) |
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211 case WM_SYSCOMMAND: { |
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212 if ((wParam&0xFFF0)==SC_SCREENSAVE || |
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213 (wParam&0xFFF0)==SC_MONITORPOWER) |
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214 return(0); |
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215 } |
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216 /* Fall through to default processing */ |
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217 #endif /* SC_SCREENSAVE && SC_MONITORPOWER */ |
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218 |
0 | 219 default: { |
220 /* Only post the event if we're watching for it */ | |
221 if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) { | |
222 SDL_SysWMmsg wmmsg; | |
223 | |
224 SDL_VERSION(&wmmsg.version); | |
225 wmmsg.hwnd = hwnd; | |
226 wmmsg.msg = msg; | |
227 wmmsg.wParam = wParam; | |
228 wmmsg.lParam = lParam; | |
229 posted = SDL_PrivateSysWMEvent(&wmmsg); | |
145
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230 |
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231 /* DJM: If the user isn't watching for private |
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232 messages in her SDL event loop, then pass it |
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233 along to any win32 specific window proc. |
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234 */ |
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235 } else if (userWindowProc) { |
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236 return CallWindowProc(userWindowProc, hwnd, msg, wParam, lParam); |
0 | 237 } |
238 } | |
239 break; | |
240 } | |
241 return(DefWindowProc(hwnd, msg, wParam, lParam)); | |
242 } | |
243 | |
244 void DIB_PumpEvents(_THIS) | |
245 { | |
246 MSG msg; | |
247 | |
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248 while ( PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) ) { |
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249 if ( GetMessage(&msg, NULL, 0, 0) > 0 ) { |
0 | 250 DispatchMessage(&msg); |
251 } | |
252 } | |
253 } | |
254 | |
255 void DIB_InitOSKeymap(_THIS) | |
256 { | |
257 int i; | |
258 | |
259 /* Map the VK keysyms */ | |
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260 for ( i=0; i<SDL_arraysize(VK_keymap); ++i ) |
0 | 261 VK_keymap[i] = SDLK_UNKNOWN; |
262 | |
263 VK_keymap[VK_BACK] = SDLK_BACKSPACE; | |
264 VK_keymap[VK_TAB] = SDLK_TAB; | |
265 VK_keymap[VK_CLEAR] = SDLK_CLEAR; | |
266 VK_keymap[VK_RETURN] = SDLK_RETURN; | |
267 VK_keymap[VK_PAUSE] = SDLK_PAUSE; | |
268 VK_keymap[VK_ESCAPE] = SDLK_ESCAPE; | |
269 VK_keymap[VK_SPACE] = SDLK_SPACE; | |
270 VK_keymap[VK_APOSTROPHE] = SDLK_QUOTE; | |
271 VK_keymap[VK_COMMA] = SDLK_COMMA; | |
272 VK_keymap[VK_MINUS] = SDLK_MINUS; | |
273 VK_keymap[VK_PERIOD] = SDLK_PERIOD; | |
274 VK_keymap[VK_SLASH] = SDLK_SLASH; | |
275 VK_keymap[VK_0] = SDLK_0; | |
276 VK_keymap[VK_1] = SDLK_1; | |
277 VK_keymap[VK_2] = SDLK_2; | |
278 VK_keymap[VK_3] = SDLK_3; | |
279 VK_keymap[VK_4] = SDLK_4; | |
280 VK_keymap[VK_5] = SDLK_5; | |
281 VK_keymap[VK_6] = SDLK_6; | |
282 VK_keymap[VK_7] = SDLK_7; | |
283 VK_keymap[VK_8] = SDLK_8; | |
284 VK_keymap[VK_9] = SDLK_9; | |
285 VK_keymap[VK_SEMICOLON] = SDLK_SEMICOLON; | |
286 VK_keymap[VK_EQUALS] = SDLK_EQUALS; | |
287 VK_keymap[VK_LBRACKET] = SDLK_LEFTBRACKET; | |
288 VK_keymap[VK_BACKSLASH] = SDLK_BACKSLASH; | |
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289 VK_keymap[VK_OEM_102] = SDLK_LESS; |
0 | 290 VK_keymap[VK_RBRACKET] = SDLK_RIGHTBRACKET; |
291 VK_keymap[VK_GRAVE] = SDLK_BACKQUOTE; | |
327
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292 VK_keymap[VK_BACKTICK] = SDLK_BACKQUOTE; |
0 | 293 VK_keymap[VK_A] = SDLK_a; |
294 VK_keymap[VK_B] = SDLK_b; | |
295 VK_keymap[VK_C] = SDLK_c; | |
296 VK_keymap[VK_D] = SDLK_d; | |
297 VK_keymap[VK_E] = SDLK_e; | |
298 VK_keymap[VK_F] = SDLK_f; | |
299 VK_keymap[VK_G] = SDLK_g; | |
300 VK_keymap[VK_H] = SDLK_h; | |
301 VK_keymap[VK_I] = SDLK_i; | |
302 VK_keymap[VK_J] = SDLK_j; | |
303 VK_keymap[VK_K] = SDLK_k; | |
304 VK_keymap[VK_L] = SDLK_l; | |
305 VK_keymap[VK_M] = SDLK_m; | |
306 VK_keymap[VK_N] = SDLK_n; | |
307 VK_keymap[VK_O] = SDLK_o; | |
308 VK_keymap[VK_P] = SDLK_p; | |
309 VK_keymap[VK_Q] = SDLK_q; | |
310 VK_keymap[VK_R] = SDLK_r; | |
311 VK_keymap[VK_S] = SDLK_s; | |
312 VK_keymap[VK_T] = SDLK_t; | |
313 VK_keymap[VK_U] = SDLK_u; | |
314 VK_keymap[VK_V] = SDLK_v; | |
315 VK_keymap[VK_W] = SDLK_w; | |
316 VK_keymap[VK_X] = SDLK_x; | |
317 VK_keymap[VK_Y] = SDLK_y; | |
318 VK_keymap[VK_Z] = SDLK_z; | |
319 VK_keymap[VK_DELETE] = SDLK_DELETE; | |
320 | |
321 VK_keymap[VK_NUMPAD0] = SDLK_KP0; | |
322 VK_keymap[VK_NUMPAD1] = SDLK_KP1; | |
323 VK_keymap[VK_NUMPAD2] = SDLK_KP2; | |
324 VK_keymap[VK_NUMPAD3] = SDLK_KP3; | |
325 VK_keymap[VK_NUMPAD4] = SDLK_KP4; | |
326 VK_keymap[VK_NUMPAD5] = SDLK_KP5; | |
327 VK_keymap[VK_NUMPAD6] = SDLK_KP6; | |
328 VK_keymap[VK_NUMPAD7] = SDLK_KP7; | |
329 VK_keymap[VK_NUMPAD8] = SDLK_KP8; | |
330 VK_keymap[VK_NUMPAD9] = SDLK_KP9; | |
331 VK_keymap[VK_DECIMAL] = SDLK_KP_PERIOD; | |
332 VK_keymap[VK_DIVIDE] = SDLK_KP_DIVIDE; | |
333 VK_keymap[VK_MULTIPLY] = SDLK_KP_MULTIPLY; | |
334 VK_keymap[VK_SUBTRACT] = SDLK_KP_MINUS; | |
335 VK_keymap[VK_ADD] = SDLK_KP_PLUS; | |
336 | |
337 VK_keymap[VK_UP] = SDLK_UP; | |
338 VK_keymap[VK_DOWN] = SDLK_DOWN; | |
339 VK_keymap[VK_RIGHT] = SDLK_RIGHT; | |
340 VK_keymap[VK_LEFT] = SDLK_LEFT; | |
341 VK_keymap[VK_INSERT] = SDLK_INSERT; | |
342 VK_keymap[VK_HOME] = SDLK_HOME; | |
343 VK_keymap[VK_END] = SDLK_END; | |
344 VK_keymap[VK_PRIOR] = SDLK_PAGEUP; | |
345 VK_keymap[VK_NEXT] = SDLK_PAGEDOWN; | |
346 | |
347 VK_keymap[VK_F1] = SDLK_F1; | |
348 VK_keymap[VK_F2] = SDLK_F2; | |
349 VK_keymap[VK_F3] = SDLK_F3; | |
350 VK_keymap[VK_F4] = SDLK_F4; | |
351 VK_keymap[VK_F5] = SDLK_F5; | |
352 VK_keymap[VK_F6] = SDLK_F6; | |
353 VK_keymap[VK_F7] = SDLK_F7; | |
354 VK_keymap[VK_F8] = SDLK_F8; | |
355 VK_keymap[VK_F9] = SDLK_F9; | |
356 VK_keymap[VK_F10] = SDLK_F10; | |
357 VK_keymap[VK_F11] = SDLK_F11; | |
358 VK_keymap[VK_F12] = SDLK_F12; | |
359 VK_keymap[VK_F13] = SDLK_F13; | |
360 VK_keymap[VK_F14] = SDLK_F14; | |
361 VK_keymap[VK_F15] = SDLK_F15; | |
362 | |
363 VK_keymap[VK_NUMLOCK] = SDLK_NUMLOCK; | |
364 VK_keymap[VK_CAPITAL] = SDLK_CAPSLOCK; | |
365 VK_keymap[VK_SCROLL] = SDLK_SCROLLOCK; | |
366 VK_keymap[VK_RSHIFT] = SDLK_RSHIFT; | |
367 VK_keymap[VK_LSHIFT] = SDLK_LSHIFT; | |
368 VK_keymap[VK_RCONTROL] = SDLK_RCTRL; | |
369 VK_keymap[VK_LCONTROL] = SDLK_LCTRL; | |
370 VK_keymap[VK_RMENU] = SDLK_RALT; | |
371 VK_keymap[VK_LMENU] = SDLK_LALT; | |
372 VK_keymap[VK_RWIN] = SDLK_RSUPER; | |
373 VK_keymap[VK_LWIN] = SDLK_LSUPER; | |
374 | |
375 VK_keymap[VK_HELP] = SDLK_HELP; | |
376 #ifdef VK_PRINT | |
377 VK_keymap[VK_PRINT] = SDLK_PRINT; | |
378 #endif | |
379 VK_keymap[VK_SNAPSHOT] = SDLK_PRINT; | |
380 VK_keymap[VK_CANCEL] = SDLK_BREAK; | |
381 VK_keymap[VK_APPS] = SDLK_MENU; | |
382 } | |
383 | |
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384 static SDL_keysym *TranslateKey(WPARAM vkey, UINT scancode, SDL_keysym *keysym, int pressed) |
0 | 385 { |
386 /* Set the keysym information */ | |
387 keysym->scancode = (unsigned char) scancode; | |
388 keysym->sym = VK_keymap[vkey]; | |
389 keysym->mod = KMOD_NONE; | |
390 keysym->unicode = 0; | |
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391 if ( pressed && SDL_TranslateUNICODE ) { |
0 | 392 #ifdef NO_GETKEYBOARDSTATE |
393 /* Uh oh, better hope the vkey is close enough.. */ | |
394 keysym->unicode = vkey; | |
395 #else | |
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396 BYTE keystate[256]; |
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397 Uint16 wchars[2]; |
0 | 398 |
399 GetKeyboardState(keystate); | |
1480 | 400 if (SDL_ToUnicode((UINT)vkey, scancode, keystate, wchars, sizeof(wchars)/sizeof(wchars[0]), 0) == 1) |
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401 { |
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402 keysym->unicode = wchars[0]; |
0 | 403 } |
404 #endif /* NO_GETKEYBOARDSTATE */ | |
405 } | |
406 return(keysym); | |
407 } | |
408 | |
409 int DIB_CreateWindow(_THIS) | |
410 { | |
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411 char *windowid = SDL_getenv("SDL_WINDOWID"); |
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412 |
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413 SDL_RegisterApp(NULL, 0, 0); |
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414 |
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415 SDL_windowid = (windowid != NULL); |
0 | 416 if ( SDL_windowid ) { |
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417 #if defined(_WIN32_WCE) && (_WIN32_WCE < 300) |
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418 /* wince 2.1 does not have strtol */ |
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419 wchar_t *windowid_t = SDL_malloc((SDL_strlen(windowid) + 1) * sizeof(wchar_t)); |
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420 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, windowid, -1, windowid_t, SDL_strlen(windowid) + 1); |
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421 SDL_Window = (HWND)wcstol(windowid_t, NULL, 0); |
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422 SDL_free(windowid_t); |
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423 #else |
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424 SDL_Window = (HWND)SDL_strtoull(windowid, NULL, 0); |
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425 #endif |
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426 if ( SDL_Window == NULL ) { |
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427 SDL_SetError("Couldn't get user specified window"); |
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428 return(-1); |
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429 } |
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430 |
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431 /* DJM: we want all event's for the user specified |
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432 window to be handled by SDL. |
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433 */ |
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434 userWindowProc = (WNDPROCTYPE)GetWindowLongPtr(SDL_Window, GWLP_WNDPROC); |
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435 SetWindowLongPtr(SDL_Window, GWLP_WNDPROC, (LONG_PTR)WinMessage); |
0 | 436 } else { |
437 SDL_Window = CreateWindow(SDL_Appname, SDL_Appname, | |
438 (WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX), | |
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439 CW_USEDEFAULT, CW_USEDEFAULT, 0, 0, NULL, NULL, SDL_Instance, NULL); |
0 | 440 if ( SDL_Window == NULL ) { |
441 SDL_SetError("Couldn't create window"); | |
442 return(-1); | |
443 } | |
444 ShowWindow(SDL_Window, SW_HIDE); | |
445 } | |
1523 | 446 |
447 /* JC 14 Mar 2006 | |
448 Flush the message loop or this can cause big problems later | |
449 Especially if the user decides to use dialog boxes or assert()! | |
450 */ | |
451 WIN_FlushMessageQueue(); | |
452 | |
0 | 453 return(0); |
454 } | |
455 | |
456 void DIB_DestroyWindow(_THIS) | |
457 { | |
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458 if ( SDL_windowid ) { |
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459 SetWindowLongPtr(SDL_Window, GWLP_WNDPROC, (LONG_PTR)userWindowProc); |
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460 } else { |
0 | 461 DestroyWindow(SDL_Window); |
462 } | |
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463 SDL_UnregisterApp(); |
1523 | 464 |
465 /* JC 14 Mar 2006 | |
466 Flush the message loop or this can cause big problems later | |
467 Especially if the user decides to use dialog boxes or assert()! | |
468 */ | |
469 WIN_FlushMessageQueue(); | |
0 | 470 } |