e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 Sam Lantinga |
4 | |
5 | This library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
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 |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with this library; if not, write to the Free Software |
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
18 | |
19 | Sam Lantinga |
20 | slouken@libsdl.org |
21 | */ |
22 | #include "SDL_config.h" |
23 | |
24 | #define WIN32_LEAN_AND_MEAN |
25 | #include <windows.h> |
26 | |
27 | #include "SDL_version.h" |
28 | #include "SDL_video.h" |
29 | #include "SDL_loadso.h" |
30 | #include "SDL_syswm.h" |
31 | #include "../SDL_pixels_c.h" |
32 | #include "../SDL_cursor_c.h" |
33 | #include "SDL_syswm_c.h" |
34 | #include "SDL_wingl_c.h" |
35 | |
36 | |
37 | #ifdef _WIN32_WCE |
38 | #define DISABLE_ICON_SUPPORT |
39 | #endif |
40 | |
41 | /* The screen icon -- needs to be freed on SDL_VideoQuit() */ |
42 | HICON screen_icn = NULL; |
43 | |
44 | /* Win32 icon mask semantics are different from those of SDL: |
45 | SDL applies the mask to the icon and copies result to desktop. |
46 | Win32 applies the mask to the desktop and XORs the icon on. |
47 | This means that the SDL mask needs to be applied to the icon and |
48 | then inverted and passed to Win32. |
49 | */ |
50 | void WIN_SetWMIcon(_THIS, SDL_Surface *icon, Uint8 *mask) |
51 | { |
52 | #ifdef DISABLE_ICON_SUPPORT |
53 | return; |
54 | #else |
55 | SDL_Palette *pal_256; |
56 | SDL_Surface *icon_256; |
57 | Uint8 *pdata, *pwin32; |
58 | Uint8 *mdata, *mwin32, m = 0; |
59 | int icon_len; |
60 | int icon_plen; |
61 | int icon_mlen; |
62 | int icon_pitch; |
63 | int mask_pitch; |
64 | SDL_Rect bounds; |
65 | int i, skip; |
66 | int row, col; |
67 | struct /* quasi-BMP format */ Win32Icon { |
68 | Uint32 biSize; |
69 | Sint32 biWidth; |
70 | Sint32 biHeight; |
71 | Uint16 biPlanes; |
72 | Uint16 biBitCount; |
73 | Uint32 biCompression; |
74 | Uint32 biSizeImage; |
75 | Sint32 biXPelsPerMeter; |
76 | Sint32 biYPelsPerMeter; |
77 | Uint32 biClrUsed; |
78 | Uint32 biClrImportant; |
79 | struct /* RGBQUAD -- note it's BGR ordered */ { |
80 | Uint8 rgbBlue; |
81 | Uint8 rgbGreen; |
82 | Uint8 rgbRed; |
83 | Uint8 rgbReserved; |
84 | } biColors[256]; |
85 | /* Pixels: |
86 | Uint8 pixels[] |
87 | */ |
88 | /* Mask: |
89 | Uint8 mask[] |
90 | */ |
91 | } *icon_win32; |
92 | |
93 | /* Allocate the win32 bmp icon and set everything to zero */ |
94 | icon_pitch = ((icon->w+3)&~3); |
95 | mask_pitch = ((icon->w+7)/8); |
96 | icon_plen = icon->h*icon_pitch; |
97 | icon_mlen = icon->h*mask_pitch; |
98 | icon_len = sizeof(*icon_win32)+icon_plen+icon_mlen; |
99 | icon_win32 = (struct Win32Icon *)SDL_stack_alloc(Uint8, icon_len); |
100 | if ( icon_win32 == NULL ) { |
101 | return; |
102 | } |
103 | SDL_memset(icon_win32, 0, icon_len); |
104 | |
105 | /* Set the basic BMP parameters */ |
106 | icon_win32->biSize = sizeof(*icon_win32)-sizeof(icon_win32->biColors); |
107 | icon_win32->biWidth = icon->w; |
108 | icon_win32->biHeight = icon->h*2; |
109 | icon_win32->biPlanes = 1; |
110 | icon_win32->biBitCount = 8; |
111 | icon_win32->biSizeImage = icon_plen+icon_mlen; |
112 | |
113 | /* Allocate a standard 256 color icon surface */ |
114 | icon_256 = SDL_CreateRGBSurface(SDL_SWSURFACE, icon->w, icon->h, |
115 | icon_win32->biBitCount, 0, 0, 0, 0); |
116 | if ( icon_256 == NULL ) { |
117 | SDL_stack_free(icon_win32); |
118 | return; |
119 | } |
120 | pal_256 = icon_256->format->palette; |
121 | if (icon->format->palette && |
122 | (icon->format->BitsPerPixel == icon_256->format->BitsPerPixel)){ |
123 | Uint8 black; |
124 | SDL_memcpy(pal_256->colors, icon->format->palette->colors, |
125 | pal_256->ncolors*sizeof(SDL_Color)); |
126 | /* Make sure that 0 is black! */ |
127 | black = SDL_FindColor(pal_256, 0x00, 0x00, 0x00); |
128 | pal_256->colors[black] = pal_256->colors[0]; |
129 | pal_256->colors[0].r = 0x00; |
130 | pal_256->colors[0].g = 0x00; |
131 | pal_256->colors[0].b = 0x00; |
132 | } else { |
133 | SDL_DitherColors(pal_256->colors, |
134 | icon_256->format->BitsPerPixel); |
135 | } |
136 | |
137 | /* Now copy color data to the icon BMP */ |
138 | for ( i=0; i<(1<<icon_win32->biBitCount); ++i ) { |
139 | icon_win32->biColors[i].rgbRed = pal_256->colors[i].r; |
140 | icon_win32->biColors[i].rgbGreen = pal_256->colors[i].g; |
141 | icon_win32->biColors[i].rgbBlue = pal_256->colors[i].b; |
142 | } |
143 | |
144 | /* Convert icon to a standard surface format. This may not always |
145 | be necessary, as Windows supports a variety of BMP formats, but |
146 | it greatly simplifies our code. |
147 | */ |
148 | bounds.x = 0; |
149 | bounds.y = 0; |
150 | bounds.w = icon->w; |
151 | bounds.h = icon->h; |
152 | if ( SDL_LowerBlit(icon, &bounds, icon_256, &bounds) < 0 ) { |
153 | SDL_stack_free(icon_win32); |
154 | SDL_FreeSurface(icon_256); |
155 | return; |
156 | } |
157 | |
158 | /* Copy pixels upside-down to icon BMP, masked with the icon mask */ |
159 | if ( SDL_MUSTLOCK(icon_256) || (icon_256->pitch != icon_pitch) ) { |
160 | SDL_stack_free(icon_win32); |
161 | SDL_FreeSurface(icon_256); |
162 | SDL_SetError("Warning: Unexpected icon_256 characteristics"); |
163 | return; |
164 | } |
165 | pdata = (Uint8 *)icon_256->pixels; |
166 | mdata = mask; |
167 | pwin32 = (Uint8 *)icon_win32+sizeof(*icon_win32)+icon_plen-icon_pitch; |
168 | skip = icon_pitch - icon->w; |
169 | for ( row=0; row<icon->h; ++row ) { |
170 | for ( col=0; col<icon->w; ++col ) { |
171 | if ( (col%8) == 0 ) { |
172 | m = *mdata++; |
173 | } |
174 | if ( (m&0x80) != 0x00 ) { |
175 | *pwin32 = *pdata; |
176 | } |
177 | m <<= 1; |
178 | ++pdata; |
179 | ++pwin32; |
180 | } |
181 | pdata += skip; |
182 | pwin32 += skip; |
183 | pwin32 -= 2*icon_pitch; |
184 | } |
185 | SDL_FreeSurface(icon_256); |
186 | |
187 | /* Copy mask inverted and upside-down to icon BMP */ |
188 | mdata = mask; |
189 | mwin32 = (Uint8 *)icon_win32 |
190 | +sizeof(*icon_win32)+icon_plen+icon_mlen-mask_pitch; |
191 | for ( row=0; row<icon->h; ++row ) { |
192 | for ( col=0; col<mask_pitch; ++col ) { |
193 | *mwin32++ = ~*mdata++; |
194 | } |
195 | mwin32 -= 2*mask_pitch; |
196 | } |
197 | |
198 | /* Finally, create the icon handle and set the window icon */ |
199 | screen_icn = CreateIconFromResourceEx((Uint8 *)icon_win32, icon_len, |
200 | TRUE, 0x00030000, icon->w, icon->h, LR_DEFAULTCOLOR); |
201 | if ( screen_icn == NULL ) { |
202 | SDL_SetError("Couldn't create Win32 icon handle"); |
203 | } else { |
204 | SetClassLongPtr(SDL_Window, GCLP_HICON, (LONG_PTR)screen_icn); |
205 | } |
206 | SDL_stack_free(icon_win32); |
207 | #endif /* DISABLE_ICON_SUPPORT */ |
208 | } |
209 | |
210 | typedef BOOL (WINAPI *PtrSetWindowTextW)(HWND hWnd, LPCWSTR lpString); |
211 | |
212 | void WIN_SetWMCaption(_THIS, const char *title, const char *icon) |
213 | { |
214 | #ifdef _WIN32_WCE |
215 | /* WinCE uses the UNICODE version */ |
216 | LPWSTR lpszW = SDL_iconv_utf8_ucs2((char *)title); |
217 | SetWindowText(SDL_Window, lpszW); |
218 | SDL_free(lpszW); |
219 | #else |
220 | Uint16 *lpsz = SDL_iconv_utf8_ucs2(title); |
221 | size_t len = WideCharToMultiByte(CP_ACP, 0, lpsz, -1, NULL, 0, NULL, NULL); |
222 | char *cvt = SDL_stack_alloc(char, len + 1); |
223 | WideCharToMultiByte(CP_ACP, 0, lpsz, -1, cvt, len, NULL, NULL); |
224 | SetWindowText(SDL_Window, cvt); |
225 | SDL_stack_free(cvt); |
226 | SDL_free(lpsz); |
227 | #endif |
228 | } |
229 | |
230 | int WIN_IconifyWindow(_THIS) |
231 | { |
232 | ShowWindow(SDL_Window, SW_MINIMIZE); |
233 | return(1); |
234 | } |
235 | |
236 | SDL_GrabMode WIN_GrabInput(_THIS, SDL_GrabMode mode) |
237 | { |
238 | if ( mode == SDL_GRAB_OFF ) { |
239 | ClipCursor(NULL); |
240 | if ( !(SDL_cursorstate & CURSOR_VISIBLE) ) { |
241 | /* RJR: March 28, 2000 |
242 | must be leaving relative mode, move mouse from |
243 | center of window to where it belongs ... */ |
244 | POINT pt; |
245 | int x, y; |
246 | SDL_GetMouseState(&x,&y); |
247 | pt.x = x; |
248 | pt.y = y; |
249 | ClientToScreen(SDL_Window, &pt); |
250 | SetCursorPos(pt.x,pt.y); |
251 | } |
252 | #ifdef _WIN32_WCE |
253 | AllKeys(0); |
254 | #endif |
255 | } else { |
256 | ClipCursor(&SDL_bounds); |
257 | if ( !(SDL_cursorstate & CURSOR_VISIBLE) ) { |
258 | /* RJR: March 28, 2000 |
259 | must be entering relative mode, get ready by |
260 | moving mouse to center of window ... */ |
261 | POINT pt; |
262 | pt.x = (SDL_VideoSurface->w/2); |
263 | pt.y = (SDL_VideoSurface->h/2); |
264 | ClientToScreen(SDL_Window, &pt); |
265 | SetCursorPos(pt.x, pt.y); |
266 | } |
267 | #ifdef _WIN32_WCE |
268 | AllKeys(1); |
269 | #endif |
270 | } |
271 | return(mode); |
272 | } |
273 | |
274 | /* If 'info' is the right version, this function fills it and returns 1. |
275 | Otherwise, in case of a version mismatch, it returns -1. |
276 | */ |
277 | int WIN_GetWMInfo(_THIS, SDL_SysWMinfo *info) |
278 | { |
279 | if ( info->version.major <= SDL_MAJOR_VERSION ) { |
280 | info->window = SDL_Window; |
281 | if ( SDL_VERSIONNUM(info->version.major, |
282 | info->version.minor, |
283 | info->version.patch) >= |
284 | SDL_VERSIONNUM(1, 2, 5) ) { |
285 | #if SDL_VIDEO_OPENGL |
286 | info->hglrc = GL_hrc; |
287 | #else |
288 | info->hglrc = NULL; |
289 | #endif |
290 | } |
291 | return(1); |
292 | } else { |
293 | SDL_SetError("Application not compiled with SDL %d.%d\n", |
294 | SDL_MAJOR_VERSION, SDL_MINOR_VERSION); |
295 | return(-1); |
296 | } |
297 | } |