Mercurial > sdl-ios-xcode
annotate src/video/wincommon/SDL_syswm.c @ 553:417f8709e648
There's a bug in the VC7 optimizer relating to the duff loop optimization
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 02 Dec 2002 02:40:58 +0000 |
| parents | 3ac8344e3872 |
| children | 51a8702d8ecd |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 3 Copyright (C) 1997, 1998, 1999 Sam Lantinga | |
| 4 | |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 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 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$" | |
| 26 #endif | |
| 27 | |
| 28 #include <stdio.h> | |
| 29 #include <malloc.h> | |
| 30 #include <windows.h> | |
| 31 | |
| 32 #include "SDL_version.h" | |
| 33 #include "SDL_error.h" | |
| 34 #include "SDL_video.h" | |
| 35 #include "SDL_syswm.h" | |
| 36 #include "SDL_syswm_c.h" | |
|
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37 #include "SDL_wingl_c.h" |
| 0 | 38 #include "SDL_pixels_c.h" |
| 39 | |
| 40 #ifdef _WIN32_WCE | |
| 41 #define DISABLE_ICON_SUPPORT | |
| 42 #endif | |
| 43 | |
| 44 /* RJR: March 28, 2000 | |
| 45 we need "SDL_cursor_c.h" for mods to WIN_GrabInput */ | |
| 46 #include "SDL_cursor_c.h" | |
| 47 | |
| 48 /* The screen icon -- needs to be freed on SDL_VideoQuit() */ | |
| 49 HICON screen_icn = NULL; | |
| 50 | |
| 51 /* Win32 icon mask semantics are different from those of SDL: | |
| 52 SDL applies the mask to the icon and copies result to desktop. | |
| 53 Win32 applies the mask to the desktop and XORs the icon on. | |
| 54 This means that the SDL mask needs to be applied to the icon and | |
| 55 then inverted and passed to Win32. | |
| 56 */ | |
| 57 void WIN_SetWMIcon(_THIS, SDL_Surface *icon, Uint8 *mask) | |
| 58 { | |
| 59 #ifdef DISABLE_ICON_SUPPORT | |
| 60 return; | |
| 61 #else | |
| 62 SDL_Palette *pal_256; | |
| 63 SDL_Surface *icon_256; | |
| 64 Uint8 *pdata, *pwin32; | |
| 65 Uint8 *mdata, *mwin32, m = 0; | |
| 66 int icon_len; | |
| 67 int icon_plen; | |
| 68 int icon_mlen; | |
| 69 int icon_pitch; | |
| 70 int mask_pitch; | |
| 71 SDL_Rect bounds; | |
| 72 int i, skip; | |
| 73 int row, col; | |
| 74 struct /* quasi-BMP format */ Win32Icon { | |
| 75 Uint32 biSize; | |
| 76 Sint32 biWidth; | |
| 77 Sint32 biHeight; | |
| 78 Uint16 biPlanes; | |
| 79 Uint16 biBitCount; | |
| 80 Uint32 biCompression; | |
| 81 Uint32 biSizeImage; | |
| 82 Sint32 biXPelsPerMeter; | |
| 83 Sint32 biYPelsPerMeter; | |
| 84 Uint32 biClrUsed; | |
| 85 Uint32 biClrImportant; | |
| 86 struct /* RGBQUAD -- note it's BGR ordered */ { | |
| 87 Uint8 rgbBlue; | |
| 88 Uint8 rgbGreen; | |
| 89 Uint8 rgbRed; | |
| 90 Uint8 rgbReserved; | |
| 91 } biColors[256]; | |
| 92 /* Pixels: | |
| 93 Uint8 pixels[] | |
| 94 */ | |
| 95 /* Mask: | |
| 96 Uint8 mask[] | |
| 97 */ | |
| 98 } *icon_win32; | |
| 99 | |
| 100 /* Allocate the win32 bmp icon and set everything to zero */ | |
| 101 icon_pitch = ((icon->w+3)&~3); | |
| 102 mask_pitch = ((icon->w+7)/8); | |
| 103 icon_plen = icon->h*icon_pitch; | |
| 104 icon_mlen = icon->h*mask_pitch; | |
| 105 icon_len = sizeof(*icon_win32)+icon_plen+icon_mlen; | |
| 106 icon_win32 = (struct Win32Icon *)alloca(icon_len); | |
| 107 if ( icon_win32 == NULL ) { | |
| 108 return; | |
| 109 } | |
| 110 memset(icon_win32, 0, icon_len); | |
| 111 | |
| 112 /* Set the basic BMP parameters */ | |
| 113 icon_win32->biSize = sizeof(*icon_win32)-sizeof(icon_win32->biColors); | |
| 114 icon_win32->biWidth = icon->w; | |
| 115 icon_win32->biHeight = icon->h*2; | |
| 116 icon_win32->biPlanes = 1; | |
| 117 icon_win32->biBitCount = 8; | |
| 118 icon_win32->biSizeImage = icon_plen+icon_mlen; | |
| 119 | |
| 120 /* Allocate a standard 256 color icon surface */ | |
| 121 icon_256 = SDL_CreateRGBSurface(SDL_SWSURFACE, icon->w, icon->h, | |
| 122 icon_win32->biBitCount, 0, 0, 0, 0); | |
| 123 if ( icon_256 == NULL ) { | |
| 124 return; | |
| 125 } | |
| 126 pal_256 = icon_256->format->palette; | |
| 127 if (icon->format->palette && | |
| 128 (icon->format->BitsPerPixel == icon_256->format->BitsPerPixel)){ | |
| 129 Uint8 black; | |
| 130 memcpy(pal_256->colors, icon->format->palette->colors, | |
| 131 pal_256->ncolors*sizeof(SDL_Color)); | |
| 132 /* Make sure that 0 is black! */ | |
| 133 black = SDL_FindColor(pal_256, 0x00, 0x00, 0x00); | |
| 134 pal_256->colors[black] = pal_256->colors[0]; | |
| 135 pal_256->colors[0].r = 0x00; | |
| 136 pal_256->colors[0].g = 0x00; | |
| 137 pal_256->colors[0].b = 0x00; | |
| 138 } else { | |
| 139 SDL_DitherColors(pal_256->colors, | |
| 140 icon_256->format->BitsPerPixel); | |
| 141 } | |
| 142 | |
| 143 /* Now copy color data to the icon BMP */ | |
| 144 for ( i=0; i<(1<<icon_win32->biBitCount); ++i ) { | |
| 145 icon_win32->biColors[i].rgbRed = pal_256->colors[i].r; | |
| 146 icon_win32->biColors[i].rgbGreen = pal_256->colors[i].g; | |
| 147 icon_win32->biColors[i].rgbBlue = pal_256->colors[i].b; | |
| 148 } | |
| 149 | |
| 150 /* Convert icon to a standard surface format. This may not always | |
| 151 be necessary, as Windows supports a variety of BMP formats, but | |
| 152 it greatly simplifies our code. | |
| 153 */ | |
| 154 bounds.x = 0; | |
| 155 bounds.y = 0; | |
| 156 bounds.w = icon->w; | |
| 157 bounds.h = icon->h; | |
| 158 if ( SDL_LowerBlit(icon, &bounds, icon_256, &bounds) < 0 ) { | |
| 159 SDL_FreeSurface(icon_256); | |
| 160 return; | |
| 161 } | |
| 162 | |
| 163 /* Copy pixels upside-down to icon BMP, masked with the icon mask */ | |
| 164 if ( SDL_MUSTLOCK(icon_256) || (icon_256->pitch != icon_pitch) ) { | |
| 165 SDL_FreeSurface(icon_256); | |
| 166 SDL_SetError("Warning: Unexpected icon_256 characteristics"); | |
| 167 return; | |
| 168 } | |
| 169 pdata = (Uint8 *)icon_256->pixels; | |
| 170 mdata = mask; | |
| 171 pwin32 = (Uint8 *)icon_win32+sizeof(*icon_win32)+icon_plen-icon_pitch; | |
| 172 skip = icon_pitch - icon->w; | |
| 173 for ( row=0; row<icon->h; ++row ) { | |
| 174 for ( col=0; col<icon->w; ++col ) { | |
| 175 if ( (col%8) == 0 ) { | |
| 176 m = *mdata++; | |
| 177 } | |
| 178 if ( (m&0x80) != 0x00 ) { | |
| 179 *pwin32 = *pdata; | |
| 180 } | |
| 181 m <<= 1; | |
| 182 ++pdata; | |
| 183 ++pwin32; | |
| 184 } | |
| 185 pdata += skip; | |
| 186 pwin32 += skip; | |
| 187 pwin32 -= 2*icon_pitch; | |
| 188 } | |
| 189 SDL_FreeSurface(icon_256); | |
| 190 | |
| 191 /* Copy mask inverted and upside-down to icon BMP */ | |
| 192 mdata = mask; | |
| 193 mwin32 = (Uint8 *)icon_win32 | |
| 194 +sizeof(*icon_win32)+icon_plen+icon_mlen-mask_pitch; | |
| 195 for ( row=0; row<icon->h; ++row ) { | |
| 196 for ( col=0; col<mask_pitch; ++col ) { | |
| 197 *mwin32++ = ~*mdata++; | |
| 198 } | |
| 199 mwin32 -= 2*mask_pitch; | |
| 200 } | |
| 201 | |
| 202 /* Finally, create the icon handle and set the window icon */ | |
| 203 screen_icn = CreateIconFromResourceEx((Uint8 *)icon_win32, icon_len, | |
| 204 TRUE, 0x00030000, icon->w, icon->h, LR_DEFAULTCOLOR); | |
| 205 if ( screen_icn == NULL ) { | |
| 206 SDL_SetError("Couldn't create Win32 icon handle"); | |
| 207 } else { | |
| 208 SetClassLong(SDL_Window, GCL_HICON, (LONG)screen_icn); | |
| 209 } | |
| 210 #endif /* DISABLE_ICON_SUPPORT */ | |
| 211 } | |
| 212 | |
| 213 void WIN_SetWMCaption(_THIS, const char *title, const char *icon) | |
| 214 { | |
| 215 #ifdef _WIN32_WCE | |
| 216 /* WinCE uses the UNICODE version */ | |
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Windows CE patches contributed by Rainer Loritz
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217 int nLen = strlen(title)+1; |
|
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Windows CE patches contributed by Rainer Loritz
Sam Lantinga <slouken@lokigames.com>
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218 LPWSTR lpszW = alloca(nLen*2); |
| 0 | 219 MultiByteToWideChar(CP_ACP, 0, title, -1, lpszW, nLen); |
| 220 SetWindowText(SDL_Window, lpszW); | |
| 221 #else | |
| 222 SetWindowText(SDL_Window, title); | |
| 223 #endif | |
| 224 } | |
| 225 | |
| 226 int WIN_IconifyWindow(_THIS) | |
| 227 { | |
| 228 ShowWindow(SDL_Window, SW_MINIMIZE); | |
| 229 return(1); | |
| 230 } | |
| 231 | |
| 232 SDL_GrabMode WIN_GrabInput(_THIS, SDL_GrabMode mode) | |
| 233 { | |
| 234 if ( mode == SDL_GRAB_OFF ) { | |
| 235 ClipCursor(NULL); | |
| 236 if ( !(SDL_cursorstate & CURSOR_VISIBLE) ) { | |
| 237 /* RJR: March 28, 2000 | |
| 238 must be leaving relative mode, move mouse from | |
| 239 center of window to where it belongs ... */ | |
| 240 POINT pt; | |
| 241 int x, y; | |
| 242 SDL_GetMouseState(&x,&y); | |
| 243 pt.x = x; | |
| 244 pt.y = y; | |
| 245 ClientToScreen(SDL_Window, &pt); | |
| 246 SetCursorPos(pt.x,pt.y); | |
| 247 } | |
| 248 } else { | |
| 249 ClipCursor(&SDL_bounds); | |
| 250 if ( !(SDL_cursorstate & CURSOR_VISIBLE) ) { | |
| 251 /* RJR: March 28, 2000 | |
| 252 must be entering relative mode, get ready by | |
| 253 moving mouse to center of window ... */ | |
| 254 POINT pt; | |
| 255 pt.x = (SDL_VideoSurface->w/2); | |
| 256 pt.y = (SDL_VideoSurface->h/2); | |
| 257 ClientToScreen(SDL_Window, &pt); | |
| 258 SetCursorPos(pt.x, pt.y); | |
| 259 } | |
| 260 } | |
| 261 return(mode); | |
| 262 } | |
| 263 | |
| 264 /* If 'info' is the right version, this function fills it and returns 1. | |
| 265 Otherwise, in case of a version mismatch, it returns -1. | |
| 266 */ | |
| 267 int WIN_GetWMInfo(_THIS, SDL_SysWMinfo *info) | |
| 268 { | |
| 269 if ( info->version.major <= SDL_MAJOR_VERSION ) { | |
| 270 info->window = SDL_Window; | |
|
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f9c5f135a8b9
Added a way to get the Windows OpenGL context in SDL_syswm.h
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parents:
252
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changeset
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271 if ( SDL_VERSIONNUM(info->version.major, |
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f9c5f135a8b9
Added a way to get the Windows OpenGL context in SDL_syswm.h
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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272 info->version.minor, |
|
f9c5f135a8b9
Added a way to get the Windows OpenGL context in SDL_syswm.h
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parents:
252
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changeset
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273 info->version.patch) >= |
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439
3ac8344e3872
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Sam Lantinga <slouken@libsdl.org>
parents:
438
diff
changeset
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274 SDL_VERSIONNUM(1, 2, 5) ) { |
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438
f9c5f135a8b9
Added a way to get the Windows OpenGL context in SDL_syswm.h
Sam Lantinga <slouken@libsdl.org>
parents:
252
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changeset
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275 #ifdef HAVE_OPENGL |
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f9c5f135a8b9
Added a way to get the Windows OpenGL context in SDL_syswm.h
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parents:
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276 info->hglrc = GL_hrc; |
|
f9c5f135a8b9
Added a way to get the Windows OpenGL context in SDL_syswm.h
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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277 #else |
|
f9c5f135a8b9
Added a way to get the Windows OpenGL context in SDL_syswm.h
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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278 info->hglrc = NULL; |
|
f9c5f135a8b9
Added a way to get the Windows OpenGL context in SDL_syswm.h
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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279 #endif |
|
f9c5f135a8b9
Added a way to get the Windows OpenGL context in SDL_syswm.h
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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280 } |
| 0 | 281 return(1); |
| 282 } else { | |
| 283 SDL_SetError("Application not compiled with SDL %d.%d\n", | |
| 284 SDL_MAJOR_VERSION, SDL_MINOR_VERSION); | |
| 285 return(-1); | |
| 286 } | |
| 287 } |